Release 2019.11.2

TUN-2563: Exposes config_version metrics
Release 2019.11.1
2026-06-08 13:33:07 +00:00 · 2019-11-19 15:16:15 -06:00 · 2019-11-19 20:42:41 +00:00 · 2019-11-19 19:56:25 +00:00 · 2019-11-19 04:34:00 +00:00 · 2019-11-18 14:26:58 -06:00
1214 changed files with 426324 additions and 130168 deletions
@@ -9,5 +9,8 @@ guide/public
 \#*\#
 cscope.*
 cloudflared
+cloudflared.exe
 !cmd/cloudflared/
-.DS_Store
+.DS_Store
+*-session.log
+ssh_server_tests/.env
@@ -1,709 +0,0 @@
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-[[projects]]
-  branch = "master"
-  digest = "1:77751d02e939d7078faedaeec10c09af575a09c528d84d18f2cb45a84bd1889a"
-  name = "golang.org/x/sys"
-  packages = [
-    "cpu",
-    "unix",
-    "windows",
-    "windows/registry",
-    "windows/svc",
-    "windows/svc/eventlog",
-    "windows/svc/mgr",
-  ]
-  pruneopts = "UT"
-  revision = "12500544f89f9420afe9529ba8940bf72d294972"
-
-[[projects]]
-  digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
-  name = "golang.org/x/text"
-  packages = [
-    "collate",
-    "collate/build",
-    "internal/colltab",
-    "internal/gen",
-    "internal/tag",
-    "internal/triegen",
-    "internal/ucd",
-    "language",
-    "secure/bidirule",
-    "transform",
-    "unicode/bidi",
-    "unicode/cldr",
-    "unicode/norm",
-    "unicode/rangetable",
-  ]
-  pruneopts = "UT"
-  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
-  version = "v0.3.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:c3076e7defee87de1236f1814beb588f40a75544c60121e6eb38b3b3721783e2"
-  name = "google.golang.org/genproto"
-  packages = ["googleapis/rpc/status"]
-  pruneopts = "UT"
-  revision = "d1146b9035b912113a38af3b138eb2af567b2c67"
-
-[[projects]]
-  digest = "1:31d87f39886fb38a2b6c097ff3b9f985d6960772170d64a68246f7790e955746"
-  name = "google.golang.org/grpc"
-  packages = [
-    ".",
-    "balancer",
-    "balancer/base",
-    "balancer/roundrobin",
-    "binarylog/grpc_binarylog_v1",
-    "codes",
-    "connectivity",
-    "credentials",
-    "credentials/internal",
-    "encoding",
-    "encoding/proto",
-    "grpclog",
-    "internal",
-    "internal/backoff",
-    "internal/balancerload",
-    "internal/binarylog",
-    "internal/channelz",
-    "internal/envconfig",
-    "internal/grpcrand",
-    "internal/grpcsync",
-    "internal/syscall",
-    "internal/transport",
-    "keepalive",
-    "metadata",
-    "naming",
-    "peer",
-    "resolver",
-    "resolver/dns",
-    "resolver/passthrough",
-    "stats",
-    "status",
-    "tap",
-  ]
-  pruneopts = "UT"
-  revision = "236199dd5f8031d698fb64091194aecd1c3895b2"
-  version = "v1.20.0"
-
-[[projects]]
-  branch = "altsrc-parse-durations"
-  digest = "1:0370b1bceda03dbfade3abbde639a43f1113bab711ec760452e5c0dcc0c14787"
-  name = "gopkg.in/urfave/cli.v2"
-  packages = [
-    ".",
-    "altsrc",
-  ]
-  pruneopts = "UT"
-  revision = "d604b6ffeee878fbf084fd2761466b6649989cee"
-  source = "https://github.com/cbranch/cli"
-
-[[projects]]
-  digest = "1:4d2e5a73dc1500038e504a8d78b986630e3626dc027bc030ba5c75da257cdb96"
-  name = "gopkg.in/yaml.v2"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "51d6538a90f86fe93ac480b35f37b2be17fef232"
-  version = "v2.2.2"
-
-[[projects]]
-  digest = "1:8ffc3ddc31414c0a71220957bb723b16510d7fcb5b3880dc0da4cf6d39c31642"
-  name = "zombiezen.com/go/capnproto2"
-  packages = [
-    ".",
-    "encoding/text",
-    "internal/fulfiller",
-    "internal/nodemap",
-    "internal/packed",
-    "internal/queue",
-    "internal/schema",
-    "internal/strquote",
-    "pogs",
-    "rpc",
-    "rpc/internal/refcount",
-    "schemas",
-    "server",
-    "std/capnp/rpc",
-  ]
-  pruneopts = "UT"
-  revision = "7cfd211c19c7f5783c695f3654efa46f0df259c3"
-  source = "https://github.com/zombiezen/go-capnproto2"
-  version = "v2.17.1"
-
-[solve-meta]
-  analyzer-name = "dep"
-  analyzer-version = 1
-  input-imports = [
-    "github.com/DATA-DOG/go-sqlmock",
-    "github.com/aws/aws-sdk-go/aws",
-    "github.com/aws/aws-sdk-go/aws/credentials",
-    "github.com/aws/aws-sdk-go/aws/session",
-    "github.com/aws/aws-sdk-go/service/s3",
-    "github.com/cloudflare/brotli-go",
-    "github.com/cloudflare/golibs/lrucache",
-    "github.com/coredns/coredns/core/dnsserver",
-    "github.com/coredns/coredns/plugin",
-    "github.com/coredns/coredns/plugin/cache",
-    "github.com/coredns/coredns/plugin/metrics/vars",
-    "github.com/coredns/coredns/plugin/pkg/dnstest",
-    "github.com/coredns/coredns/plugin/pkg/rcode",
-    "github.com/coredns/coredns/request",
-    "github.com/coreos/go-oidc/jose",
-    "github.com/coreos/go-systemd/daemon",
-    "github.com/creack/pty",
-    "github.com/elgs/gosqljson",
-    "github.com/equinox-io/equinox",
-    "github.com/facebookgo/grace/gracenet",
-    "github.com/getsentry/raven-go",
-    "github.com/gliderlabs/ssh",
-    "github.com/golang-collections/collections/queue",
-    "github.com/google/uuid",
-    "github.com/gorilla/mux",
-    "github.com/gorilla/websocket",
-    "github.com/lib/pq",
-    "github.com/mattn/go-colorable",
-    "github.com/miekg/dns",
-    "github.com/mitchellh/go-homedir",
-    "github.com/mitchellh/mapstructure",
-    "github.com/pkg/errors",
-    "github.com/prometheus/client_golang/prometheus",
-    "github.com/prometheus/client_golang/prometheus/promhttp",
-    "github.com/rifflock/lfshook",
-    "github.com/sirupsen/logrus",
-    "github.com/sirupsen/logrus/hooks/test",
-    "github.com/stretchr/testify/assert",
-    "github.com/stretchr/testify/require",
-    "golang.org/x/crypto/nacl/box",
-    "golang.org/x/crypto/ssh",
-    "golang.org/x/crypto/ssh/terminal",
-    "golang.org/x/net/context",
-    "golang.org/x/net/http2",
-    "golang.org/x/net/http2/hpack",
-    "golang.org/x/net/idna",
-    "golang.org/x/net/trace",
-    "golang.org/x/net/websocket",
-    "golang.org/x/sync/errgroup",
-    "golang.org/x/sys/windows",
-    "golang.org/x/sys/windows/svc",
-    "golang.org/x/sys/windows/svc/eventlog",
-    "golang.org/x/sys/windows/svc/mgr",
-    "gopkg.in/urfave/cli.v2",
-    "gopkg.in/urfave/cli.v2/altsrc",
-    "zombiezen.com/go/capnproto2",
-    "zombiezen.com/go/capnproto2/encoding/text",
-    "zombiezen.com/go/capnproto2/pogs",
-    "zombiezen.com/go/capnproto2/rpc",
-    "zombiezen.com/go/capnproto2/schemas",
-    "zombiezen.com/go/capnproto2/server",
-    "zombiezen.com/go/capnproto2/std/capnp/rpc",
-  ]
-  solver-name = "gps-cdcl"
-  solver-version = 1
@@ -1,103 +0,0 @@
-[prune]
-  go-tests = true
-  unused-packages = true
-
-  [[prune.project]]
-    name = "github.com/cloudflare/brotli-go"
-    unused-packages = false
-
-
-
-[[constraint]]
-  name = "github.com/facebookgo/grace"
-  revision = "75cf19382434e82df4dd84953f566b8ad23d6e9e"
-
-[[constraint]]
-  name = "github.com/getsentry/raven-go"
-  revision = "ed7bcb39ff10f39ab08e317ce16df282845852fa"
-
-[[constraint]]
-  name = "github.com/pkg/errors"
-  version = "=0.8.0"
-
-[[constraint]]
-  name = "github.com/prometheus/client_golang"
-  version = "=0.9.0-pre1"
-
-[[constraint]]
-  name = "github.com/sirupsen/logrus"
-  version = "=1.4.2"
-
-[[constraint]]
-  name = "github.com/stretchr/testify"
-  version = "=1.2.1"
-
-[[constraint]]
-  name = "golang.org/x/net"
-  branch = "master"  # master required by github.com/miekg/dns
-
-[[constraint]]
-  name = "golang.org/x/sync"
-  revision = "1d60e4601c6fd243af51cc01ddf169918a5407ca"
-
-[[constraint]]
-  name = "gopkg.in/urfave/cli.v2"
-  source = "https://github.com/cbranch/cli"
-  branch = "altsrc-parse-durations"
-
-[[constraint]]
-  name = "zombiezen.com/go/capnproto2"
-  source = "https://github.com/zombiezen/go-capnproto2"
-  version = "=2.17.1"
-
-[[constraint]]
-  name = "github.com/gorilla/websocket"
-  version = "=1.2.0"
-
-[[constraint]]
-  name = "github.com/coredns/coredns"
-  version = "=1.2.0"
-
-[[constraint]]
-  name = "github.com/miekg/dns"
-  version = "=1.1.8"
-
-[[constraint]]
-  name = "github.com/cloudflare/brotli-go"
-  revision = "18c9f6c67e3dfc12e0ddaca748d2887f97a7ac28"
-
-[[override]]
-  name = "github.com/mholt/caddy"
-  revision = "d3b731e9255b72d4571a5aac125634cf1b6031dc"
-
-[[constraint]]
-  name = "github.com/coreos/go-oidc"
-  revision = "a93f71fdfe73d2c0f5413c0565eea0af6523a6df"
-
-[[constraint]]
-  name = "golang.org/x/crypto"
-  branch = "master"  # master required by github.com/miekg/dns
-
-[[constraint]]
-  name = "github.com/cloudflare/golibs"
-  revision = "333127dbecfcc23a8db7d9a4f52785d23aff44a1"
-
-[[constraint]]
-  name = "github.com/google/uuid"
-  version = "=1.1.1"
-
-[[constraint]]
-  name = "github.com/mitchellh/mapstructure"
-  version = "1.1.2"
-
-[[constraint]]
-  name = "github.com/gliderlabs/ssh"
-  version = "0.2.2"
-
-[[constraint]]
-  name = "github.com/creack/pty"
-  version = "1.1.7"
-
-[[constraint]]
-  name = "github.com/aws/aws-sdk-go"
-  version = "1.23.9"
@@ -29,7 +29,7 @@ clean:

 .PHONY: cloudflared
 cloudflared: tunnel-deps
-	go build -v $(VERSION_FLAGS) $(IMPORT_PATH)/cmd/cloudflared
+	go build -v -mod=vendor $(VERSION_FLAGS) $(IMPORT_PATH)/cmd/cloudflared

 .PHONY: container
 container:
@@ -37,7 +37,11 @@ container:

 .PHONY: test
 test: vet
-	go test -v -race $(VERSION_FLAGS) ./...
+	go test -v -mod=vendor -race $(VERSION_FLAGS) ./...
+
+.PHONY: test-ssh-server
+test-ssh-server:
+	docker-compose -f ssh_server_tests/docker-compose.yml up

 .PHONY: cloudflared-deb
 cloudflared-deb: cloudflared
@@ -78,6 +82,6 @@ tunnelrpc/tunnelrpc.capnp.go: tunnelrpc/tunnelrpc.capnp

 .PHONY: vet
 vet:
-	go vet ./...
+	go vet -mod=vendor ./...
 	which go-sumtype  # go get github.com/BurntSushi/go-sumtype
-	go-sumtype $$(go list ./...)
+	go-sumtype $$(go list -mod=vendor ./...)
@@ -1,3 +1,70 @@
+2019.11.2
+- 2019-11-18 TUN-2567: AuthOutcome can be turned back into AuthResponse
+- 2019-11-18 TUN-2563: Exposes config_version metrics
+
+2019.11.1
+- 2019-11-12 Add db-connect, a SQL over HTTPS server
+- 2019-11-12 TUN-2053: Add a /healthcheck endpoint to the metrics server
+- 2019-11-13 TUN-2178: public API to create new h2mux.MuxedStreamRequest
+- 2019-11-13 TUN-2490: respect original representation of HTTP request path
+- 2019-11-18 TUN-2547: TunnelRPC definitions for Authenticate flow
+- 2019-11-18 TUN-2551: TunnelRPC definitions for ReconnectTunnel flow
+- 2019-11-05 TUN-2506: Expose active streams metrics
+
+2019.11.0
+- 2019-11-04 TUN-2502: Switch to go modules
+- 2019-11-04 TUN-2500: Don't send client registration errors to Sentry
+- 2019-11-04 TUN-2489: Delete stream from activestreammap when read and write are both closed
+- 2019-11-05 TUN-2505: Terminate stream on receipt of RST_STREAM; MuxedStream.CloseWrite() should terminate the MuxedStream.Write() loop
+- 2019-10-30 TUN-2451: Log inavlid path
+- 2019-10-22 TUN-2425: Enable cloudflared to serve multiple Hello World servers by having each of them create its own ServeMux
+- 2019-10-22 AUTH-2173: Prepends access login url with scheme if one doesnt exist
+- 2019-10-23 TUN-2460: Configure according to the ClientConfig recevied from a successful Connect
+- 2019-10-23 AUTH-2177: Reads and writes error streams
+
+2019.10.4
+- 2019-10-21 TUN-2450: Remove Brew publishing formula
+
+2019.10.3
+- 2019-10-18 Fix #129: Excessive memory usage streaming large files (#142)
+
+2019.10.2
+- 2019-10-17 AUTH-2167: Adds CLI option for host key directory
+
+2019.10.1
+- 2019-10-17 Adds variable to fix windows build
+
+2019.10.0
+- 2019-10-11 AUTH-2105: Dont require --destination arg
+- 2019-10-14 TUN-2344: log more details: http2.Framer.ErrorDetail() if available, connectionID
+- 2019-10-16 AUTH-2159: Moves shutdownC close into error handling AUTH-2161: Lowers size of preamble length AUTH-2160: Fixes url parsing logic
+- 2019-10-16 AUTH-2135: Adds support for IPv6 and tests
+- 2019-10-02 AUTH-2105: Adds support for local forwarding. Refactor auditlogger creation. AUTH-2088: Adds dynamic destination routing
+- 2019-10-09 AUTH-2114: Uses short lived cert auth for outgoing client connection
+- 2019-09-30 AUTH-2089: Revise ssh server to function as a proxy
+
+2019.9.2
+- 2019-09-26 TUN-2355: Roll back TUN-2276
+
+2019.9.1
+- 2019-09-23 TUN-2334: remove tlsConfig.ServerName special case
+- 2019-09-23 AUTH-2077: Quotes open browser command in windows
+- 2019-09-11 AUTH-2050: Adds time.sleep to temporarily avoid hitting tunnel muxer dealock issue
+- 2019-09-10 AUTH-2056: Writes stderr to its own stream for non-pty connections
+- 2019-09-16 TUN-2307: Capnp is the only serialization format used in tunnelpogs
+- 2019-09-18 TUN-2315: Replace Scope with IntentLabel
+- 2019-09-17 TUN-2309: Split ConnectResult into ConnectError and ConnectSuccess, each implementing its own capnp serialization logic
+- 2019-09-18 AUTH-2052: Adds tests for SSH server
+- 2019-09-18 AUTH-2067: Log commands correctly
+- 2019-09-19 AUTH-2055: Verifies token at edge on access login
+- 2019-09-04 TUN-2201: change SRV records used by cloudflared
+- 2019-09-06 TUN-2280: Revert "TUN-2260: add name/group to CapnpConnectParameters, remove Scope"
+- 2019-09-03 AUTH-1943 hooked up uploader to logger, added timestamp to session logs, add tests
+- 2019-09-04 AUTH-2036: Refactor user retrieval, shutdown after ssh server stops, add custom version string
+- 2019-09-06 AUTH-1942 added event log to ssh server
+- 2019-09-04 AUTH-2037: Adds support for ssh port forwarding
+- 2019-09-05 TUN-2276: Path encoding broken
+
 2019.9.0
 - 2019-09-05 TUN-2279: Revert path encoding fix
 - 2019-08-30 AUTH-2021 - check error for failing tests
@@ -77,7 +77,7 @@ func (m *DirectoryUploadManager) sweep() {
 		checkTime := time.Now().Add(-time.Duration(retentionTime))

 		//delete the file it is stale
-		if info.ModTime().After(checkTime) {
+		if info.ModTime().Before(checkTime) {
 			os.Remove(path)
 			return nil
 		}
@@ -114,7 +114,7 @@ func createWebsocketStream(options *StartOptions) (*cloudflaredWebsocket.Conn, e

 	wsConn, resp, err := cloudflaredWebsocket.ClientConnect(req, nil)
 	defer closeRespBody(resp)
-	if err != nil && isAccessResponse(resp) {
+	if err != nil && IsAccessResponse(resp) {
 		wsConn, err = createAccessAuthenticatedStream(options)
 		if err != nil {
 			return nil, err
@@ -126,10 +126,10 @@ func createWebsocketStream(options *StartOptions) (*cloudflaredWebsocket.Conn, e
 	return &cloudflaredWebsocket.Conn{Conn: wsConn}, nil
 }

-// isAccessResponse checks the http Response to see if the url location
+// IsAccessResponse checks the http Response to see if the url location
 // contains the Access structure.
-func isAccessResponse(resp *http.Response) bool {
-	if resp == nil || resp.StatusCode <= 300 {
+func IsAccessResponse(resp *http.Response) bool {
+	if resp == nil || resp.StatusCode != http.StatusFound {
 		return false
 	}

@@ -156,7 +156,7 @@ func createAccessAuthenticatedStream(options *StartOptions) (*websocket.Conn, er
 		return wsConn, nil
 	}

-	if !isAccessResponse(resp) {
+	if !IsAccessResponse(resp) {
 		return nil, err
 	}

@@ -179,7 +179,7 @@ func createAccessAuthenticatedStream(options *StartOptions) (*websocket.Conn, er

 // createAccessWebSocketStream builds an Access request and makes a connection
 func createAccessWebSocketStream(options *StartOptions) (*websocket.Conn, *http.Response, error) {
-	req, err := buildAccessRequest(options)
+	req, err := BuildAccessRequest(options)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -187,7 +187,7 @@ func createAccessWebSocketStream(options *StartOptions) (*websocket.Conn, *http.
 }

 // buildAccessRequest builds an HTTP request with the Access token set
-func buildAccessRequest(options *StartOptions) (*http.Request, error) {
+func BuildAccessRequest(options *StartOptions) (*http.Request, error) {
 	req, err := http.NewRequest(http.MethodGet, options.OriginURL, nil)
 	if err != nil {
 		return nil, err
@@ -102,14 +102,14 @@ func TestIsAccessResponse(t *testing.T) {
 		ExpectedOut bool
 	}{
 		{"nil response", nil, false},
-		{"redirect with no location", &http.Response{StatusCode: http.StatusPermanentRedirect}, false},
+		{"redirect with no location", &http.Response{StatusCode: http.StatusFound}, false},
 		{"200 ok", &http.Response{StatusCode: http.StatusOK}, false},
-		{"redirect with location", &http.Response{StatusCode: http.StatusPermanentRedirect, Header: validLocationHeader}, true},
-		{"redirect with invalid location", &http.Response{StatusCode: http.StatusPermanentRedirect, Header: invalidLocationHeader}, false},
+		{"redirect with location", &http.Response{StatusCode: http.StatusFound, Header: validLocationHeader}, true},
+		{"redirect with invalid location", &http.Response{StatusCode: http.StatusFound, Header: invalidLocationHeader}, false},
 	}

 	for i, tc := range testCases {
-		if isAccessResponse(tc.In) != tc.ExpectedOut {
+		if IsAccessResponse(tc.In) != tc.ExpectedOut {
 			t.Fatalf("Failed case %d -- %s", i, tc.Description)
 		}
 	}
@@ -1,5 +1,5 @@
 pinned_go: &pinned_go go=1.12.7-1
-build_dir: &build_dir /cfsetup_build/src/github.com/cloudflare/cloudflared/
+build_dir: &build_dir /cfsetup_build
 default-flavor: stretch
 stretch: &stretch
  build:
@@ -8,7 +8,6 @@ stretch: &stretch
      - *pinned_go
      - build-essential
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=amd64
      - make cloudflared
@@ -20,7 +19,6 @@ stretch: &stretch
      - fakeroot
      - rubygem-fpm
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=amd64
      - make cloudflared-deb
@@ -30,7 +28,6 @@ stretch: &stretch
      - *pinned_go
      - build-essential
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=amd64
      - make release
@@ -41,7 +38,6 @@ stretch: &stretch
      - crossbuild-essential-armhf
      - gcc-arm-linux-gnueabihf
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=arm
      - export CC=arm-linux-gnueabihf-gcc
@@ -52,7 +48,6 @@ stretch: &stretch
      - *pinned_go
      - gcc-multilib
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=386
      - make release
@@ -62,7 +57,6 @@ stretch: &stretch
      - *pinned_go
      - gcc-mingw-w64
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=windows
      - export GOARCH=amd64
      - export CC=x86_64-w64-mingw32-gcc
@@ -73,7 +67,6 @@ stretch: &stretch
      - *pinned_go
      - gcc-mingw-w64
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=windows
      - export GOARCH=386
      - export CC=i686-w64-mingw32-gcc-win32
@@ -84,12 +77,22 @@ stretch: &stretch
      - *pinned_go
      - build-essential
    post-cache:
-      - export GOPATH=/cfsetup_build/
      - export GOOS=linux
      - export GOARCH=amd64
-      - sudo chown -R $(whoami) /cfsetup_build/
-      - go get github.com/BurntSushi/go-sumtype
-      - export PATH="$GOPATH/bin:$PATH"
+      # cd to a non-module directory: https://github.com/golang/go/issues/24250
+      - (cd / && go get github.com/BurntSushi/go-sumtype)
+      - export PATH="$HOME/go/bin:$PATH"
      - make test

 jessie: *stretch
+
+# cfsetup compose
+default-stack: test_dbconnect
+test_dbconnect:
+  compose:
+    up-args:
+      - --renew-anon-volumes
+      - --abort-on-container-exit
+      - --exit-code-from=cloudflared
+    files:
+      - dbconnect_tests/dbconnect.yaml
@@ -23,7 +23,7 @@ func ssh(c *cli.Context) error {
 	if err != nil || rawHostName == "" {
 		return cli.ShowCommandHelp(c, "ssh")
 	}
-	originURL := "https://" + hostname
+	originURL := ensureURLScheme(hostname)

 	// get the headers from the cmdline and add them
 	headers := buildRequestHeaders(c.StringSlice(sshHeaderFlag))
@@ -34,6 +34,11 @@ func ssh(c *cli.Context) error {
 		headers.Add("CF-Access-Client-Secret", c.String(sshTokenSecretFlag))
 	}

+	destination := c.String(sshDestinationFlag)
+	if destination != "" {
+		headers.Add("CF-Access-SSH-Destination", destination)
+	}
+
 	options := &carrier.StartOptions{
 		OriginURL: originURL,
 		Headers:   headers,
@@ -1,17 +1,20 @@
 package access

 import (
-	"errors"
 	"fmt"
+	"net/http"
 	"net/url"
 	"os"
 	"strings"
 	"text/template"
+	"time"

+	"github.com/cloudflare/cloudflared/carrier"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/shell"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/token"
 	"github.com/cloudflare/cloudflared/sshgen"
 	"github.com/cloudflare/cloudflared/validation"
+	"github.com/pkg/errors"
 	"golang.org/x/net/idna"

 	"github.com/cloudflare/cloudflared/log"
@@ -21,6 +24,7 @@ import (

 const (
 	sshHostnameFlag    = "hostname"
+	sshDestinationFlag = "destination"
 	sshURLFlag         = "url"
 	sshHeaderFlag      = "header"
 	sshTokenIDFlag     = "service-token-id"
@@ -124,6 +128,10 @@ func Commands() []*cli.Command {
 							Name:  sshHostnameFlag,
 							Usage: "specify the hostname of your application.",
 						},
+						&cli.StringFlag{
+							Name:  sshDestinationFlag,
+							Usage: "specify the destination address of your SSH server.",
+						},
 						&cli.StringFlag{
 							Name:  sshURLFlag,
 							Usage: "specify the host:port to forward data to Cloudflare edge.",
@@ -183,14 +191,20 @@ func login(c *cli.Context) error {
 	raven.SetDSN(sentryDSN)
 	logger := log.CreateLogger()
 	args := c.Args()
-	appURL, err := url.Parse(args.First())
+	rawURL := ensureURLScheme(args.First())
+	appURL, err := url.Parse(rawURL)
 	if args.Len() < 1 || err != nil {
 		logger.Errorf("Please provide the url of the Access application\n")
 		return err
 	}
-	token, err := token.FetchToken(appURL)
-	if err != nil {
-		logger.Errorf("Failed to fetch token: %s\n", err)
+	if err := verifyTokenAtEdge(appURL, c); err != nil {
+		logger.WithError(err).Error("Could not verify token")
+		return err
+	}
+
+	token, err := token.GetTokenIfExists(appURL)
+	if err != nil || token == "" {
+		fmt.Fprintln(os.Stderr, "Unable to find token for provided application.")
 		return err
 	}
 	fmt.Fprintf(os.Stdout, "Successfully fetched your token:\n\n%s\n\n", string(token))
@@ -198,6 +212,16 @@ func login(c *cli.Context) error {
 	return nil
 }

+// ensureURLScheme prepends a URL with https:// if it doesnt have a scheme. http:// URLs will not be converted.
+func ensureURLScheme(url string) string {
+	url = strings.Replace(strings.ToLower(url), "http://", "https://", 1)
+	if !strings.HasPrefix(url, "https://") {
+		url = fmt.Sprintf("https://%s", url)
+
+	}
+	return url
+}
+
 // curl provides a wrapper around curl, passing Access JWT along in request
 func curl(c *cli.Context) error {
 	raven.SetDSN(sentryDSN)
@@ -281,7 +305,7 @@ func sshGen(c *cli.Context) error {
 		return cli.ShowCommandHelp(c, "ssh-gen")
 	}

-	originURL, err := url.Parse("https://" + hostname)
+	originURL, err := url.Parse(ensureURLScheme(hostname))
 	if err != nil {
 		return err
 	}
@@ -372,3 +396,59 @@ func isFileThere(candidate string) bool {
 	}
 	return true
 }
+
+// verifyTokenAtEdge checks for a token on disk, or generates a new one.
+// Then makes a request to to the origin with the token to ensure it is valid.
+// Returns nil if token is valid.
+func verifyTokenAtEdge(appUrl *url.URL, c *cli.Context) error {
+	headers := buildRequestHeaders(c.StringSlice(sshHeaderFlag))
+	if c.IsSet(sshTokenIDFlag) {
+		headers.Add("CF-Access-Client-Id", c.String(sshTokenIDFlag))
+	}
+	if c.IsSet(sshTokenSecretFlag) {
+		headers.Add("CF-Access-Client-Secret", c.String(sshTokenSecretFlag))
+	}
+	options := &carrier.StartOptions{OriginURL: appUrl.String(), Headers: headers}
+
+	if valid, err := isTokenValid(options); err != nil {
+		return err
+	} else if valid {
+		return nil
+	}
+
+	if err := token.RemoveTokenIfExists(appUrl); err != nil {
+		return err
+	}
+
+	if valid, err := isTokenValid(options); err != nil {
+		return err
+	} else if !valid {
+		return errors.New("failed to verify token")
+	}
+
+	return nil
+}
+
+// isTokenValid makes a request to the origin and returns true if the response was not a 302.
+func isTokenValid(options *carrier.StartOptions) (bool, error) {
+	req, err := carrier.BuildAccessRequest(options)
+	if err != nil {
+		return false, errors.Wrap(err, "Could not create access request")
+	}
+
+	// Do not follow redirects
+	client := &http.Client{
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+		Timeout: time.Second * 5,
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		return false, err
+	}
+	defer resp.Body.Close()
+
+	// A redirect to login means the token was invalid.
+	return !carrier.IsAccessResponse(resp), nil
+}
@@ -0,0 +1,25 @@
+package access
+
+import "testing"
+
+func Test_ensureURLScheme(t *testing.T) {
+	type args struct {
+		url string
+	}
+	tests := []struct {
+		name string
+		args args
+		want string
+	}{
+		{"no scheme", args{"localhost:123"}, "https://localhost:123"},
+		{"http scheme", args{"http://test"}, "https://test"},
+		{"https scheme", args{"https://test"}, "https://test"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := ensureURLScheme(tt.args.url); got != tt.want {
+				t.Errorf("ensureURLScheme() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
@@ -0,0 +1,11 @@
+//+build darwin
+
+package shell
+
+import (
+	"os/exec"
+)
+
+func getBrowserCmd(url string) *exec.Cmd {
+	return exec.Command("open", url)
+}
@@ -0,0 +1,11 @@
+//+build !windows,!darwin,!linux,!netbsd,!freebsd,!openbsd
+
+package shell
+
+import (
+	"os/exec"
+)
+
+func getBrowserCmd(url string) *exec.Cmd {
+	return nil
+}
@@ -0,0 +1,11 @@
+//+build linux freebsd openbsd netbsd
+
+package shell
+
+import (
+	"os/exec"
+)
+
+func getBrowserCmd(url string) *exec.Cmd {
+	return exec.Command("xdg-open", url)
+}
@@ -0,0 +1,18 @@
+//+build windows
+
+package shell
+
+import (
+	"fmt"
+	"os/exec"
+	"syscall"
+)
+
+func getBrowserCmd(url string) *exec.Cmd {
+	cmd := exec.Command("cmd")
+	// CmdLine is only defined when compiling for windows.
+	// Empty string is the cmd proc "Title". Needs to be included because the start command will interpret the first
+	// quoted string as that field and we want to quote the URL.
+	cmd.SysProcAttr = &syscall.SysProcAttr{CmdLine: fmt.Sprintf(`/c start "" "%s"`, url)}
+	return cmd
+}
@@ -4,25 +4,11 @@ import (
 	"io"
 	"os"
 	"os/exec"
-	"runtime"
 )

 // OpenBrowser opens the specified URL in the default browser of the user
 func OpenBrowser(url string) error {
-	var cmd string
-	var args []string
-
-	switch runtime.GOOS {
-	case "windows":
-		cmd = "cmd"
-		args = []string{"/c", "start"}
-	case "darwin":
-		cmd = "open"
-	default: // "linux", "freebsd", "openbsd", "netbsd"
-		cmd = "xdg-open"
-	}
-	args = append(args, url)
-	return exec.Command(cmd, args...).Start()
+	return getBrowserCmd(url).Start()
 }

 // Run will kick off a shell task and pipe the results to the respective std pipes
@@ -26,15 +26,15 @@ var logger = log.CreateLogger()
 type lock struct {
 	lockFilePath string
 	backoff      *origin.BackoffHandler
-	sigHandler 	 *signalHandler
+	sigHandler   *signalHandler
 }

 type signalHandler struct {
-	sigChannel 		 chan os.Signal
-	signals		     []os.Signal
+	sigChannel chan os.Signal
+	signals    []os.Signal
 }

-func (s *signalHandler) register(handler func()){
+func (s *signalHandler) register(handler func()) {
 	s.sigChannel = make(chan os.Signal, 1)
 	signal.Notify(s.sigChannel, s.signals...)
 	go func(s *signalHandler) {
@@ -59,8 +59,8 @@ func newLock(path string) *lock {
 	return &lock{
 		lockFilePath: lockPath,
 		backoff:      &origin.BackoffHandler{MaxRetries: 7},
-		sigHandler:   &signalHandler{
-			signals: 	[]os.Signal{syscall.SIGINT, syscall.SIGTERM},
+		sigHandler: &signalHandler{
+			signals: []os.Signal{syscall.SIGINT, syscall.SIGTERM},
 		},
 	}
 }
@@ -68,8 +68,8 @@ func newLock(path string) *lock {
 func (l *lock) Acquire() error {
 	// Intercept SIGINT and SIGTERM to release lock before exiting
 	l.sigHandler.register(func() {
-        l.deleteLockFile()
-        os.Exit(0)
+		l.deleteLockFile()
+		os.Exit(0)
 	})

 	// Check for a path.lock file
@@ -18,7 +18,7 @@ import (
 )

 const (
-	baseStoreURL  = "https://login.cloudflarewarp.com/"
+	baseStoreURL  = "https://login.argotunnel.com/"
 	clientTimeout = time.Second * 60
 )

@@ -45,7 +45,7 @@ func Run(transferURL *url.URL, resourceName, key, value, path string, shouldEncr
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Please open the following URL and log in with your Cloudflare account:\n\n%s\n\nLeave cloudflared running to download the %s automatically.\n", requestURL, resourceName)
 	} else {
-		fmt.Fprintf(os.Stderr, "A browser window should have opened at the following URL:\n\n%s\n\nIf the browser failed to open, open it yourself and visit the URL above.\n", requestURL)
+		fmt.Fprintf(os.Stderr, "A browser window should have opened at the following URL:\n\n%s\n\nIf the browser failed to open, please visit the URL above directly in your browser.\n", requestURL)
 	}

 	var resourceData []byte
@@ -7,18 +7,18 @@ import (
 	"net"
 	"net/url"
 	"os"
+	"reflect"
 	"runtime"
 	"runtime/trace"
 	"sync"
-	"syscall"
 	"time"

 	"github.com/cloudflare/cloudflared/awsuploader"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
-	"github.com/cloudflare/cloudflared/cmd/sqlgateway"
 	"github.com/cloudflare/cloudflared/connection"
+	"github.com/cloudflare/cloudflared/dbconnect"
 	"github.com/cloudflare/cloudflared/hello"
 	"github.com/cloudflare/cloudflared/metrics"
 	"github.com/cloudflare/cloudflared/origin"
@@ -37,7 +37,6 @@ import (
 	"github.com/gliderlabs/ssh"
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
-	"golang.org/x/crypto/ssh/terminal"
 	"gopkg.in/urfave/cli.v2"
 	"gopkg.in/urfave/cli.v2/altsrc"
 )
@@ -45,7 +44,7 @@ import (
 const (
 	sentryDSN = "https://56a9c9fa5c364ab28f34b14f35ea0f1b:3e8827f6f9f740738eb11138f7bebb68@sentry.io/189878"

-	sshLogFileDirectory = "/var/log/cloudflared/"
+	sshLogFileDirectory = "/usr/local/var/log/cloudflared/"

 	// sshPortFlag is the port on localhost the cloudflared ssh server will run on
 	sshPortFlag = "local-ssh-port"
@@ -73,6 +72,11 @@ const (

 	// s3URLFlag is the S3 URL of SSH log uploader (e.g. don't use AWS s3 and use google storage bucket instead)
 	s3URLFlag = "s3-url-host"
+
+	// hostKeyPath is the path of the dir to save SSH host keys too
+	hostKeyPath = "host-key-path"
+
+	noIntentMsg = "The --intent argument is required. Cloudflared looks up an Intent to determine what configuration to use (i.e. which tunnels to start). If you don't have any Intents yet, you can use a placeholder Intent Label for now. Then, when you make an Intent with that label, cloudflared will get notified and open the tunnels you specified in that Intent."
 )

 var (
@@ -133,43 +137,7 @@ func Commands() []*cli.Command {
 			ArgsUsage: " ", // can't be the empty string or we get the default output
 			Hidden:    false,
 		},
-		{
-			Name: "db",
-			Action: func(c *cli.Context) error {
-				tags := make(map[string]string)
-				tags["hostname"] = c.String("hostname")
-				raven.SetTagsContext(tags)
-
-				fmt.Printf("\nSQL Database Password: ")
-				pass, err := terminal.ReadPassword(int(syscall.Stdin))
-				if err != nil {
-					logger.Error(err)
-				}
-
-				go sqlgateway.StartProxy(c, logger, string(pass))
-
-				raven.CapturePanic(func() { err = tunnel(c) }, nil)
-				if err != nil {
-					raven.CaptureError(err, nil)
-				}
-				return err
-			},
-			Before: Before,
-			Usage:  "SQL Gateway is an SQL over HTTP reverse proxy",
-			Flags: []cli.Flag{
-				&cli.BoolFlag{
-					Name:  "db",
-					Value: true,
-					Usage: "Enable the SQL Gateway Proxy",
-				},
-				&cli.StringFlag{
-					Name:  "address",
-					Value: "",
-					Usage: "Database connection string: db://user:pass",
-				},
-			},
-			Hidden: true,
-		},
+		dbConnectCmd(),
 	}

 	var subcommands []*cli.Command
@@ -363,42 +331,53 @@ func StartServer(c *cli.Context, version string, shutdownC, graceShutdownC chan

 	if c.IsSet("ssh-server") {
 		if runtime.GOOS != "darwin" && runtime.GOOS != "linux" {
-			logger.Errorf("--ssh-server is not supported on %s", runtime.GOOS)
-			return errors.New(fmt.Sprintf("--ssh-server is not supported on %s", runtime.GOOS))
+			msg := fmt.Sprintf("--ssh-server is not supported on %s", runtime.GOOS)
+			logger.Error(msg)
+			return errors.New(msg)

 		}

 		logger.Infof("ssh-server set")

+		logManager := sshlog.NewEmptyManager()
 		if c.IsSet(bucketNameFlag) && c.IsSet(regionNameFlag) && c.IsSet(accessKeyIDFlag) && c.IsSet(secretIDFlag) {
 			uploader, err := awsuploader.NewFileUploader(c.String(bucketNameFlag), c.String(regionNameFlag),
 				c.String(accessKeyIDFlag), c.String(secretIDFlag), c.String(sessionTokenIDFlag), c.String(s3URLFlag))
 			if err != nil {
-				logger.WithError(err).Error("Cannot create uploader for SSH Server")
-				return errors.Wrap(err, "Cannot create uploader for SSH Server")
+				msg := "Cannot create uploader for SSH Server"
+				logger.WithError(err).Error(msg)
+				return errors.Wrap(err, msg)
 			}

-			os.Mkdir(sshLogFileDirectory, 0600)
+			if err := os.MkdirAll(sshLogFileDirectory, 0700); err != nil {
+				msg := fmt.Sprintf("Cannot create SSH log file directory %s", sshLogFileDirectory)
+				logger.WithError(err).Errorf(msg)
+				return errors.Wrap(err, msg)
+			}
+
+			logManager = sshlog.New(sshLogFileDirectory)

 			uploadManager := awsuploader.NewDirectoryUploadManager(logger, uploader, sshLogFileDirectory, 30*time.Minute, shutdownC)
 			uploadManager.Start()
 		}

-		logManager := sshlog.New()
-		sshServerAddress := "127.0.0.1:" + c.String(sshPortFlag)
-		server, err := sshserver.New(logManager, logger, sshServerAddress, shutdownC, c.Duration(sshIdleTimeoutFlag), c.Duration(sshMaxTimeoutFlag))
+		localServerAddress := "127.0.0.1:" + c.String(sshPortFlag)
+		server, err := sshserver.New(logManager, logger, version, localServerAddress, c.String("hostname"), c.Path(hostKeyPath), shutdownC, c.Duration(sshIdleTimeoutFlag), c.Duration(sshMaxTimeoutFlag))
 		if err != nil {
-			logger.WithError(err).Error("Cannot create new SSH Server")
-			return errors.Wrap(err, "Cannot create new SSH Server")
+			msg := "Cannot create new SSH Server"
+			logger.WithError(err).Error(msg)
+			return errors.Wrap(err, msg)
 		}
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
 			if err = server.Start(); err != nil && err != ssh.ErrServerClosed {
 				logger.WithError(err).Error("SSH server error")
+				// TODO: remove when declarative tunnels are implemented.
+				close(shutdownC)
 			}
 		}()
-		c.Set("url", "ssh://"+sshServerAddress)
+		c.Set("url", "ssh://"+localServerAddress)
 	}

 	if host := hostnameFromURI(c.String("url")); host != "" {
@@ -506,19 +485,16 @@ func startDeclarativeTunnel(ctx context.Context,
 		return err
 	}

-	name := c.String("name")
-	group := c.String("group")
-	if group == "" {
-		err := fmt.Errorf("--group must be specified")
-		logger.WithError(err).Error("unable to parse group name")
-		return err
+	intentLabel := c.String("intent")
+	if intentLabel == "" {
+		logger.Error("--intent was empty")
+		return fmt.Errorf(noIntentMsg)
 	}

 	cloudflaredConfig := &connection.CloudflaredConfig{
 		BuildInfo:     buildInfo,
 		CloudflaredID: cloudflaredID,
-		Name:          name,
-		Group:         group,
+		IntentLabel:   intentLabel,
 		Tags:          tags,
 	}

@@ -631,6 +607,60 @@ func addPortIfMissing(uri *url.URL, port int) string {
 	return fmt.Sprintf("%s:%d", uri.Hostname(), port)
 }

+func dbConnectCmd() *cli.Command {
+	cmd := dbconnect.Cmd()
+
+	// Append the tunnel commands so users can customize the daemon settings.
+	cmd.Flags = appendFlags(Flags(), cmd.Flags...)
+
+	// Override before to run tunnel validation before dbconnect validation.
+	cmd.Before = func(c *cli.Context) error {
+		err := Before(c)
+		if err == nil {
+			err = dbconnect.CmdBefore(c)
+		}
+		return err
+	}
+
+	// Override action to setup the Proxy, then if successful, start the tunnel daemon.
+	cmd.Action = func(c *cli.Context) error {
+		err := dbconnect.CmdAction(c)
+		if err == nil {
+			err = tunnel(c)
+		}
+		return err
+	}
+
+	return cmd
+}
+
+// appendFlags will append extra flags to a slice of flags.
+//
+// The cli package will panic if two flags exist with the same name,
+// so if extraFlags contains a flag that was already defined, modify the
+// original flags to use the extra version.
+func appendFlags(flags []cli.Flag, extraFlags ...cli.Flag) []cli.Flag {
+	for _, extra := range extraFlags {
+		var found bool
+
+		// Check if an extra flag overrides an existing flag.
+		for i, flag := range flags {
+			if reflect.DeepEqual(extra.Names(), flag.Names()) {
+				flags[i] = extra
+				found = true
+				break
+			}
+		}
+
+		// Append the extra flag if it has nothing to override.
+		if !found {
+			flags = append(flags, extra)
+		}
+	}
+
+	return flags
+}
+
 func tunnelFlags(shouldHide bool) []cli.Flag {
 	return []cli.Flag{
 		&cli.StringFlag{
@@ -942,15 +972,9 @@ func tunnelFlags(shouldHide bool) []cli.Flag {
 			Hidden:  true,
 		}),
 		altsrc.NewStringFlag(&cli.StringFlag{
-			Name:    "name",
-			Usage:   "Friendly name for this cloudflared instance.",
-			EnvVars: []string{"TUNNEL_DECLARATIVE_NAME"},
-			Hidden:  true,
-		}),
-		altsrc.NewStringFlag(&cli.StringFlag{
-			Name:    "group",
-			Usage:   "The group whose behavior this cloudflared instance will adopt. This behavior can be configured by editing the group's 'intent' in the Declarative Tunnel UI.",
-			EnvVars: []string{"TUNNEL_DECLARATIVE_GROUP"},
+			Name:    "intent",
+			Usage:   "The label of an Intent from which `cloudflared` should gets its tunnels from. Intents can be created in the Origin Registry UI.",
+			EnvVars: []string{"TUNNEL_INTENT"},
 			Hidden:  true,
 		}),
 		altsrc.NewDurationFlag(&cli.DurationFlag{
@@ -963,7 +987,7 @@ func tunnelFlags(shouldHide bool) []cli.Flag {
 		altsrc.NewStringFlag(&cli.StringFlag{
 			Name:    sshPortFlag,
 			Usage:   "Localhost port that cloudflared SSH server will run on",
-			Value:   "22",
+			Value:   "2222",
 			EnvVars: []string{"LOCAL_SSH_PORT"},
 			Hidden:  true,
 		}),
@@ -1015,5 +1039,12 @@ func tunnelFlags(shouldHide bool) []cli.Flag {
 			EnvVars: []string{"S3_URL"},
 			Hidden:  true,
 		}),
+		altsrc.NewPathFlag(&cli.PathFlag{
+			Name:    hostKeyPath,
+			Usage:   "Absolute path of directory to save SSH host keys in",
+			EnvVars: []string{"HOST_KEY_PATH"},
+			Hidden:  true,
+
+		}),
 	}
-}
+}
@@ -15,7 +15,7 @@ import (

 const (
 	baseLoginURL     = "https://dash.cloudflare.com/argotunnel"
-	callbackStoreURL = "https://login.cloudflarewarp.com/"
+	callbackStoreURL = "https://login.argotunnel.com/"
 )

 func login(c *cli.Context) error {
@@ -1,148 +0,0 @@
-package sqlgateway
-
-import (
-	"database/sql"
-	"encoding/json"
-	"fmt"
-	"math/rand"
-	"net/http"
-	"strings"
-	"time"
-
-	_ "github.com/lib/pq"
-	cli "gopkg.in/urfave/cli.v2"
-
-	"github.com/elgs/gosqljson"
-
-	"github.com/gorilla/mux"
-	"github.com/sirupsen/logrus"
-)
-
-type Message struct {
-	Connection Connection    `json:"connection"`
-	Command    string        `json:"command"`
-	Params     []interface{} `json:"params"`
-}
-
-type Connection struct {
-	SSLMode string `json:"sslmode"`
-	Token   string `json:"token"`
-}
-
-type Response struct {
-	Columns []string   `json:"columns"`
-	Rows    [][]string `json:"rows"`
-	Error   string     `json:"error"`
-}
-
-type Proxy struct {
-	Context  *cli.Context
-	Router   *mux.Router
-	Token    string
-	User     string
-	Password string
-	Driver   string
-	Database string
-	Logger   *logrus.Logger
-}
-
-func StartProxy(c *cli.Context, logger *logrus.Logger, password string) error {
-	proxy := NewProxy(c, logger, password)
-
-	logger.Infof("Starting SQL Gateway Proxy on port %s", strings.Split(c.String("url"), ":")[1])
-
-	err := http.ListenAndServe(":"+strings.Split(c.String("url"), ":")[1], proxy.Router)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func randID(n int, c *cli.Context) string {
-	charBytes := []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
-	b := make([]byte, n)
-	for i := range b {
-		b[i] = charBytes[rand.Intn(len(charBytes))]
-	}
-	return fmt.Sprintf("%s&%s", c.String("hostname"), b)
-}
-
-// db://user@dbname
-func parseInfo(input string) (string, string, string) {
-	p1 := strings.Split(input, "://")
-	p2 := strings.Split(p1[1], "@")
-	return p1[0], p2[0], p2[1]
-}
-
-func NewProxy(c *cli.Context, logger *logrus.Logger, pass string) *Proxy {
-	rand.Seed(time.Now().UnixNano())
-	driver, user, dbname := parseInfo(c.String("address"))
-	proxy := Proxy{
-		Context:  c,
-		Router:   mux.NewRouter(),
-		Token:    randID(64, c),
-		Logger:   logger,
-		User:     user,
-		Password: pass,
-		Database: dbname,
-		Driver:   driver,
-	}
-
-	logger.Info(fmt.Sprintf(`
-
-	--------------------
-	SQL Gateway Proxy
-	Token: %s
-	--------------------
-
-	`, proxy.Token))
-
-	proxy.Router.HandleFunc("/", proxy.proxyRequest).Methods("POST")
-	return &proxy
-}
-
-func (proxy *Proxy) proxyRequest(rw http.ResponseWriter, req *http.Request) {
-	var message Message
-	response := Response{}
-
-	err := json.NewDecoder(req.Body).Decode(&message)
-	if err != nil {
-		proxy.Logger.Error(err)
-		http.Error(rw, fmt.Sprintf("400 - %s", err.Error()), http.StatusBadRequest)
-		return
-	}
-
-	if message.Connection.Token != proxy.Token {
-		proxy.Logger.Error("Invalid token")
-		http.Error(rw, "400 - Invalid token", http.StatusBadRequest)
-		return
-	}
-
-	connStr := fmt.Sprintf("user=%s password=%s dbname=%s sslmode=%s", proxy.User, proxy.Password, proxy.Database, message.Connection.SSLMode)
-
-	db, err := sql.Open(proxy.Driver, connStr)
-	defer db.Close()
-
-	if err != nil {
-		proxy.Logger.Error(err)
-		http.Error(rw, fmt.Sprintf("400 - %s", err.Error()), http.StatusBadRequest)
-		return
-
-	} else {
-		proxy.Logger.Info("Forwarding SQL: ", message.Command)
-		rw.Header().Set("Content-Type", "application/json")
-
-		headers, data, err := gosqljson.QueryDbToArray(db, "lower", message.Command, message.Params...)
-
-		if err != nil {
-			proxy.Logger.Error(err)
-			http.Error(rw, fmt.Sprintf("400 - %s", err.Error()), http.StatusBadRequest)
-			return
-
-		} else {
-			response = Response{headers, data, ""}
-		}
-	}
-	json.NewEncoder(rw).Encode(response)
-}
@@ -50,7 +50,7 @@ func (c *Connection) Serve(ctx context.Context) error {
 }

 // Connect is used to establish connections with cloudflare's edge network
-func (c *Connection) Connect(ctx context.Context, parameters *tunnelpogs.ConnectParameters, logger *logrus.Entry) (*pogs.ConnectResult, error) {
+func (c *Connection) Connect(ctx context.Context, parameters *tunnelpogs.ConnectParameters, logger *logrus.Entry) (pogs.ConnectResult, error) {
 	openStreamCtx, cancel := context.WithTimeout(ctx, openStreamTimeout)
 	defer cancel()

@@ -13,13 +13,13 @@ import (
 )

 const (
-	// Used to discover HA Warp servers
-	srvService = "warp"
+	// Used to discover HA origintunneld servers
+	srvService = "origintunneld"
 	srvProto   = "tcp"
-	srvName    = "cloudflarewarp.com"
+	srvName    = "argotunnel.com"

 	// Used to fallback to DoT when we can't use the default resolver to
-	// discover HA Warp servers (GitHub issue #75).
+	// discover HA origintunneld servers (GitHub issue #75).
 	dotServerName = "cloudflare-dns.com"
 	dotServerAddr = "1.1.1.1:853"
 	dotTimeout    = time.Duration(15 * time.Second)
@@ -30,8 +30,8 @@ const (

 var friendlyDNSErrorLines = []string{
 	`Please try the following things to diagnose this issue:`,
-	`  1. ensure that cloudflarewarp.com is returning "warp" service records.`,
-	`     Run your system's equivalent of: dig srv _warp._tcp.cloudflarewarp.com`,
+	`  1. ensure that argotunnel.com is returning "origintunneld" service records.`,
+	`     Run your system's equivalent of: dig srv _origintunneld._tcp.argotunnel.com`,
 	`  2. ensure that your DNS resolver is not returning compressed SRV records.`,
 	`     See GitHub issue https://github.com/golang/go/issues/27546`,
 	`     For example, you could use Cloudflare's 1.1.1.1 as your resolver:`,
@@ -102,7 +102,7 @@ func EdgeDiscovery(logger *logrus.Entry) ([]*net.TCPAddr, error) {
 		// Try to fall back to DoT from Cloudflare directly.
 		//
 		// Note: Instead of DoT, we could also have used DoH. Either of these:
-		//     - directly via the JSON API (https://1.1.1.1/dns-query?ct=application/dns-json&name=_warp._tcp.cloudflarewarp.com&type=srv)
+		//     - directly via the JSON API (https://1.1.1.1/dns-query?ct=application/dns-json&name=_origintunneld._tcp.argotunnel.com&type=srv)
 		//     - indirectly via `tunneldns.NewUpstreamHTTPS()`
 		// But both of these cases miss out on a key feature from the stdlib:
 		//     "The returned records are sorted by priority and randomized by weight within a priority."
@@ -119,7 +119,7 @@ func EdgeDiscovery(logger *logrus.Entry) ([]*net.TCPAddr, error) {
 			for _, s := range friendlyDNSErrorLines {
 				logger.Errorln(s)
 			}
-			return nil, errors.Wrap(err, "Could not lookup srv records on _warp._tcp.cloudflarewarp.com")
+			return nil, errors.Wrap(err, "Could not lookup srv records on _origintunneld._tcp.argotunnel.com")
 		}
 		// Accept the fallback results and keep going
 		addrs = fallbackAddrs
@@ -10,21 +10,27 @@ import (

 	"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
 	"github.com/cloudflare/cloudflared/h2mux"
+	"github.com/cloudflare/cloudflared/streamhandler"
 	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	"github.com/prometheus/client_golang/prometheus"
+
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )

 const (
-	quickStartLink = "https://developers.cloudflare.com/argo-tunnel/quickstart/"
-	faqLink        = "https://developers.cloudflare.com/argo-tunnel/faq/"
+	quickStartLink       = "https://developers.cloudflare.com/argo-tunnel/quickstart/"
+	faqLink              = "https://developers.cloudflare.com/argo-tunnel/faq/"
+	defaultRetryAfter    = time.Second * 5
+	packageNamespace     = "connection"
+	edgeManagerSubsystem = "edgemanager"
 )

 // EdgeManager manages connections with the edge
 type EdgeManager struct {
 	// streamHandler handles stream opened by the edge
-	streamHandler h2mux.MuxedStreamHandler
+	streamHandler *streamhandler.StreamHandler
 	// TLSConfig is the TLS configuration to connect with edge
 	tlsConfig *tls.Config
 	// cloudflaredConfig is the cloudflared configuration that is determined when the process first starts
@@ -35,9 +41,22 @@ type EdgeManager struct {
 	state *edgeManagerState

 	logger *logrus.Entry
+
+	metrics *metrics
 }

-// EdgeConnectionManagerConfigurable is the configurable attributes of a EdgeConnectionManager
+type metrics struct {
+	// activeStreams is a gauge shared by all muxers of this process to expose the total number of active streams
+	activeStreams prometheus.Gauge
+}
+
+func newMetrics(namespace, subsystem string) *metrics {
+	return &metrics{
+		activeStreams: h2mux.NewActiveStreamsMetrics(namespace, subsystem),
+	}
+}
+
+// EdgeManagerConfigurable is the configurable attributes of a EdgeConnectionManager
 type EdgeManagerConfigurable struct {
 	TunnelHostnames []h2mux.TunnelHostname
 	*pogs.EdgeConnectionConfig
@@ -47,12 +66,11 @@ type CloudflaredConfig struct {
 	CloudflaredID uuid.UUID
 	Tags          []pogs.Tag
 	BuildInfo     *buildinfo.BuildInfo
-	Name          string
-	Group         string
+	IntentLabel   string
 }

 func NewEdgeManager(
-	streamHandler h2mux.MuxedStreamHandler,
+	streamHandler *streamhandler.StreamHandler,
 	edgeConnMgrConfigurable *EdgeManagerConfigurable,
 	userCredential []byte,
 	tlsConfig *tls.Config,
@@ -67,6 +85,7 @@ func NewEdgeManager(
 		serviceDiscoverer: serviceDiscoverer,
 		state:             newEdgeConnectionManagerState(edgeConnMgrConfigurable, userCredential),
 		logger:            logger.WithField("subsystem", "connectionManager"),
+		metrics:           newMetrics(packageNamespace, edgeManagerSubsystem),
 	}
 }

@@ -88,8 +107,12 @@ func (em *EdgeManager) Run(ctx context.Context) error {
 		// Create/delete connection one at a time, so we don't need to adjust for connections that are being created/deleted
 		// in shouldCreateConnection or shouldReduceConnection calculation
 		if em.state.shouldCreateConnection(em.serviceDiscoverer.AvailableAddrs()) {
-			if err := em.newConnection(ctx); err != nil {
-				em.logger.WithError(err).Error("cannot create new connection")
+			if connErr := em.newConnection(ctx); connErr != nil {
+				if !connErr.ShouldRetry {
+					em.logger.WithError(connErr).Error(em.noRetryMessage())
+					return connErr
+				}
+				em.logger.WithError(connErr).Error("cannot create new connection")
 			}
 		} else if em.state.shouldReduceConnection() {
 			if err := em.closeConnection(ctx); err != nil {
@@ -104,11 +127,11 @@ func (em *EdgeManager) UpdateConfigurable(newConfigurable *EdgeManagerConfigurab
 	em.state.updateConfigurable(newConfigurable)
 }

-func (em *EdgeManager) newConnection(ctx context.Context) error {
+func (em *EdgeManager) newConnection(ctx context.Context) *pogs.ConnectError {
 	edgeIP := em.serviceDiscoverer.Addr()
 	edgeConn, err := em.dialEdge(ctx, edgeIP)
 	if err != nil {
-		return errors.Wrap(err, "dial edge error")
+		return retryConnection(fmt.Sprintf("dial edge error: %v", err))
 	}
 	configurable := em.state.getConfigurable()
 	// Establish a muxed connection with the edge
@@ -120,14 +143,14 @@ func (em *EdgeManager) newConnection(ctx context.Context) error {
 		HeartbeatInterval: configurable.HeartbeatInterval,
 		MaxHeartbeats:     configurable.MaxFailedHeartbeats,
 		Logger:            em.logger.WithField("subsystem", "muxer"),
-	})
+	}, em.metrics.activeStreams)
 	if err != nil {
-		return errors.Wrap(err, "couldn't perform handshake with edge")
+		retryConnection(fmt.Sprintf("couldn't perform handshake with edge: %v", err))
 	}

 	h2muxConn, err := newConnection(muxer, edgeIP)
 	if err != nil {
-		return errors.Wrap(err, "couldn't create h2mux connection")
+		return retryConnection(fmt.Sprintf("couldn't create h2mux connection: %v", err))
 	}

 	go em.serveConn(ctx, h2muxConn)
@@ -137,24 +160,24 @@ func (em *EdgeManager) newConnection(ctx context.Context) error {
 		CloudflaredVersion:  em.cloudflaredConfig.BuildInfo.CloudflaredVersion,
 		NumPreviousAttempts: 0,
 		OriginCert:          em.state.getUserCredential(),
-		Name:                em.cloudflaredConfig.Name,
-		Group:               em.cloudflaredConfig.Group,
+		IntentLabel:         em.cloudflaredConfig.IntentLabel,
 		Tags:                em.cloudflaredConfig.Tags,
 	}, em.logger)
 	if err != nil {
 		h2muxConn.Shutdown()
-		return errors.Wrap(err, "couldn't connect to edge")
+		return retryConnection(fmt.Sprintf("couldn't connect to edge: %v", err))
 	}

-	if connErr := connResult.Err; connErr != nil {
-		if !connErr.ShouldRetry {
-			return errors.Wrap(connErr, em.noRetryMessage())
-		}
-		return errors.Wrapf(connErr, "edge responded with RetryAfter=%v", connErr.RetryAfter)
+	if connErr := connResult.ConnectError(); connErr != nil {
+		return connErr
 	}

 	em.state.newConnection(h2muxConn)
-	em.logger.Infof("connected to %s", connResult.ServerInfo.LocationName)
+	em.logger.Infof("connected to %s", connResult.ConnectedTo())
+
+	if connResult.ClientConfig() != nil {
+		em.streamHandler.UseConfiguration(ctx, connResult.ClientConfig())
+	}
 	return nil
 }

@@ -284,3 +307,11 @@ func (ems *edgeManagerState) getUserCredential() []byte {
 	defer ems.RUnlock()
 	return ems.userCredential
 }
+
+func retryConnection(cause string) *pogs.ConnectError {
+	return &pogs.ConnectError{
+		Cause:       cause,
+		RetryAfter:  defaultRetryAfter,
+		ShouldRetry: true,
+	}
+}
@@ -8,7 +8,9 @@ import (
 	"github.com/stretchr/testify/assert"

 	"github.com/cloudflare/cloudflared/h2mux"
+	"github.com/cloudflare/cloudflared/streamhandler"
 	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
 	"github.com/google/uuid"
 	"github.com/sirupsen/logrus"
 )
@@ -42,16 +44,12 @@ var (
 	}
 )

-type mockStreamHandler struct {
-}
-
-func (msh *mockStreamHandler) ServeStream(*h2mux.MuxedStream) error {
-	return nil
-}
-
 func mockEdgeManager() *EdgeManager {
+	newConfigChan := make(chan<- *pogs.ClientConfig)
+	useConfigResultChan := make(<-chan *pogs.UseConfigurationResult)
+	logger := logrus.New()
 	return NewEdgeManager(
-		&mockStreamHandler{},
+		streamhandler.NewStreamHandler(newConfigChan, useConfigResultChan, logger),
 		configurable,
 		[]byte{},
 		nil,
@@ -0,0 +1,145 @@
+package dbconnect
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"strings"
+	"time"
+	"unicode"
+	"unicode/utf8"
+)
+
+// Client is an interface to talk to any database.
+//
+// Currently, the only implementation is SQLClient, but its structure
+// should be designed to handle a MongoClient or RedisClient in the future.
+type Client interface {
+	Ping(context.Context) error
+	Submit(context.Context, *Command) (interface{}, error)
+}
+
+// NewClient creates a database client based on its URL scheme.
+func NewClient(ctx context.Context, originURL *url.URL) (Client, error) {
+	return NewSQLClient(ctx, originURL)
+}
+
+// Command is a standard, non-vendor format for submitting database commands.
+//
+// When determining the scope of this struct, refer to the following litmus test:
+// Could this (roughly) conform to SQL, Document-based, and Key-value command formats?
+type Command struct {
+	Statement string        `json:"statement"`
+	Arguments Arguments     `json:"arguments,omitempty"`
+	Mode      string        `json:"mode,omitempty"`
+	Isolation string        `json:"isolation,omitempty"`
+	Timeout   time.Duration `json:"timeout,omitempty"`
+}
+
+// Validate enforces the contract of Command: non empty statement (both in length and logic),
+// lowercase mode and isolation, non-zero timeout, and valid Arguments.
+func (cmd *Command) Validate() error {
+	if cmd.Statement == "" {
+		return fmt.Errorf("cannot provide an empty statement")
+	}
+
+	if strings.Map(func(char rune) rune {
+		if char == ';' || unicode.IsSpace(char) {
+			return -1
+		}
+		return char
+	}, cmd.Statement) == "" {
+		return fmt.Errorf("cannot provide a statement with no logic: '%s'", cmd.Statement)
+	}
+
+	cmd.Mode = strings.ToLower(cmd.Mode)
+	cmd.Isolation = strings.ToLower(cmd.Isolation)
+
+	if cmd.Timeout.Nanoseconds() <= 0 {
+		cmd.Timeout = 24 * time.Hour
+	}
+
+	return cmd.Arguments.Validate()
+}
+
+// UnmarshalJSON converts a byte representation of JSON into a Command, which is also validated.
+func (cmd *Command) UnmarshalJSON(data []byte) error {
+	// Alias is required to avoid infinite recursion from the default UnmarshalJSON.
+	type Alias Command
+	alias := &struct {
+		*Alias
+	}{
+		Alias: (*Alias)(cmd),
+	}
+
+	err := json.Unmarshal(data, &alias)
+	if err == nil {
+		err = cmd.Validate()
+	}
+
+	return err
+}
+
+// Arguments is a wrapper for either map-based or array-based Command arguments.
+//
+// Each field is mutually-exclusive and some Client implementations may not
+// support both fields (eg. MySQL does not accept named arguments).
+type Arguments struct {
+	Named      map[string]interface{}
+	Positional []interface{}
+}
+
+// Validate enforces the contract of Arguments: non nil, mutually exclusive, and no empty or reserved keys.
+func (args *Arguments) Validate() error {
+	if args.Named == nil {
+		args.Named = map[string]interface{}{}
+	}
+	if args.Positional == nil {
+		args.Positional = []interface{}{}
+	}
+
+	if len(args.Named) > 0 && len(args.Positional) > 0 {
+		return fmt.Errorf("both named and positional arguments cannot be specified: %+v and %+v", args.Named, args.Positional)
+	}
+
+	for key := range args.Named {
+		if key == "" {
+			return fmt.Errorf("named arguments cannot contain an empty key: %+v", args.Named)
+		}
+		if !utf8.ValidString(key) {
+			return fmt.Errorf("named argument does not conform to UTF-8 encoding: %s", key)
+		}
+		if strings.HasPrefix(key, "_") {
+			return fmt.Errorf("named argument cannot start with a reserved keyword '_': %s", key)
+		}
+		if unicode.IsNumber([]rune(key)[0]) {
+			return fmt.Errorf("named argument cannot start with a number: %s", key)
+		}
+	}
+
+	return nil
+}
+
+// UnmarshalJSON converts a byte representation of JSON into Arguments, which is also validated.
+func (args *Arguments) UnmarshalJSON(data []byte) error {
+	var obj interface{}
+	err := json.Unmarshal(data, &obj)
+	if err != nil {
+		return err
+	}
+
+	named, ok := obj.(map[string]interface{})
+	if ok {
+		args.Named = named
+	} else {
+		positional, ok := obj.([]interface{})
+		if ok {
+			args.Positional = positional
+		} else {
+			return fmt.Errorf("arguments must either be an object {\"0\":\"val\"} or an array [\"val\"]: %s", string(data))
+		}
+	}
+
+	return args.Validate()
+}
@@ -0,0 +1,183 @@
+package dbconnect
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCommandValidateEmpty(t *testing.T) {
+	stmts := []string{
+		"",
+		";",
+		" \n\t",
+		";\n;\t;",
+	}
+
+	for _, stmt := range stmts {
+		cmd := Command{Statement: stmt}
+
+		assert.Error(t, cmd.Validate(), stmt)
+	}
+}
+
+func TestCommandValidateMode(t *testing.T) {
+	modes := []string{
+		"",
+		"query",
+		"ExEc",
+		"PREPARE",
+	}
+
+	for _, mode := range modes {
+		cmd := Command{Statement: "Ok", Mode: mode}
+
+		assert.NoError(t, cmd.Validate(), mode)
+		assert.Equal(t, strings.ToLower(mode), cmd.Mode)
+	}
+}
+
+func TestCommandValidateIsolation(t *testing.T) {
+	isos := []string{
+		"",
+		"default",
+		"read_committed",
+		"SNAPshot",
+	}
+
+	for _, iso := range isos {
+		cmd := Command{Statement: "Ok", Isolation: iso}
+
+		assert.NoError(t, cmd.Validate(), iso)
+		assert.Equal(t, strings.ToLower(iso), cmd.Isolation)
+	}
+}
+
+func TestCommandValidateTimeout(t *testing.T) {
+	cmd := Command{Statement: "Ok", Timeout: 0}
+
+	assert.NoError(t, cmd.Validate())
+	assert.NotZero(t, cmd.Timeout)
+
+	cmd = Command{Statement: "Ok", Timeout: 1 * time.Second}
+
+	assert.NoError(t, cmd.Validate())
+	assert.Equal(t, 1*time.Second, cmd.Timeout)
+}
+
+func TestCommandValidateArguments(t *testing.T) {
+	cmd := Command{Statement: "Ok", Arguments: Arguments{
+		Named:      map[string]interface{}{"key": "val"},
+		Positional: []interface{}{"val"},
+	}}
+
+	assert.Error(t, cmd.Validate())
+}
+
+func TestCommandUnmarshalJSON(t *testing.T) {
+	strs := []string{
+		"{\"statement\":\"Ok\"}",
+		"{\"statement\":\"Ok\",\"arguments\":[0, 3.14, \"apple\"],\"mode\":\"query\"}",
+		"{\"statement\":\"Ok\",\"isolation\":\"read_uncommitted\",\"timeout\":1000}",
+	}
+
+	for _, str := range strs {
+		var cmd Command
+		assert.NoError(t, json.Unmarshal([]byte(str), &cmd), str)
+	}
+
+	strs = []string{
+		"",
+		"\"",
+		"{}",
+		"{\"argument\":{\"key\":\"val\"}}",
+		"{\"statement\":[\"Ok\"]}",
+	}
+
+	for _, str := range strs {
+		var cmd Command
+		assert.Error(t, json.Unmarshal([]byte(str), &cmd), str)
+	}
+}
+
+func TestArgumentsValidateNotNil(t *testing.T) {
+	args := Arguments{}
+
+	assert.NoError(t, args.Validate())
+	assert.NotNil(t, args.Named)
+	assert.NotNil(t, args.Positional)
+}
+
+func TestArgumentsValidateMutuallyExclusive(t *testing.T) {
+	args := []Arguments{
+		Arguments{},
+		Arguments{Named: map[string]interface{}{"key": "val"}},
+		Arguments{Positional: []interface{}{"val"}},
+	}
+
+	for _, arg := range args {
+		assert.NoError(t, arg.Validate())
+		assert.False(t, len(arg.Named) > 0 && len(arg.Positional) > 0)
+	}
+
+	args = []Arguments{
+		Arguments{
+			Named:      map[string]interface{}{"key": "val"},
+			Positional: []interface{}{"val"},
+		},
+	}
+
+	for _, arg := range args {
+		assert.Error(t, arg.Validate())
+		assert.True(t, len(arg.Named) > 0 && len(arg.Positional) > 0)
+	}
+}
+
+func TestArgumentsValidateKeys(t *testing.T) {
+	keys := []string{
+		"",
+		"_",
+		"_key",
+		"1",
+		"1key",
+		"\xf0\x28\x8c\xbc", // non-utf8
+	}
+
+	for _, key := range keys {
+		args := Arguments{Named: map[string]interface{}{key: "val"}}
+
+		assert.Error(t, args.Validate(), key)
+	}
+}
+
+func TestArgumentsUnmarshalJSON(t *testing.T) {
+	strs := []string{
+		"{}",
+		"{\"key\":\"val\"}",
+		"{\"key\":[1, 3.14, {\"key\":\"val\"}]}",
+		"[]",
+		"[\"key\",\"val\"]",
+		"[{}]",
+	}
+
+	for _, str := range strs {
+		var args Arguments
+		assert.NoError(t, json.Unmarshal([]byte(str), &args), str)
+	}
+
+	strs = []string{
+		"",
+		"\"",
+		"1",
+		"\"key\"",
+		"{\"key\",\"val\"}",
+	}
+
+	for _, str := range strs {
+		var args Arguments
+		assert.Error(t, json.Unmarshal([]byte(str), &args), str)
+	}
+}
@@ -0,0 +1,157 @@
+package dbconnect
+
+import (
+	"context"
+	"log"
+	"net"
+	"strconv"
+
+	"gopkg.in/urfave/cli.v2"
+	"gopkg.in/urfave/cli.v2/altsrc"
+)
+
+// Cmd is the entrypoint command for dbconnect.
+//
+// The tunnel package is responsible for appending this to tunnel.Commands().
+func Cmd() *cli.Command {
+	return &cli.Command{
+		Category:  "Database Connect (ALPHA)",
+		Name:      "db-connect",
+		Usage:     "Access your SQL database from Cloudflare Workers or the browser",
+		ArgsUsage: " ",
+		Description: `
+		Creates a connection between your database and the Cloudflare edge.
+		Now you can execute SQL commands anywhere you can send HTTPS requests.
+
+		Connect your database with any of the following commands, you can also try the "playground" without a database:
+
+			cloudflared db-connect --hostname sql.mysite.com --url postgres://user:pass@localhost?sslmode=disable \
+			                       --auth-domain mysite.cloudflareaccess.com --application-aud my-access-policy-tag
+			cloudflared db-connect --hostname sql-dev.mysite.com --url mysql://localhost --insecure
+			cloudflared db-connect --playground
+		
+		Requests should be authenticated using Cloudflare Access, learn more about how to enable it here:
+
+			https://developers.cloudflare.com/access/service-auth/service-token/
+		`,
+		Flags: []cli.Flag{
+			altsrc.NewStringFlag(&cli.StringFlag{
+				Name:    "url",
+				Usage:   "URL to the database (eg. postgres://user:pass@localhost?sslmode=disable)",
+				EnvVars: []string{"TUNNEL_URL"},
+			}),
+			altsrc.NewStringFlag(&cli.StringFlag{
+				Name:    "hostname",
+				Usage:   "Hostname to accept commands over HTTPS (eg. sql.mysite.com)",
+				EnvVars: []string{"TUNNEL_HOSTNAME"},
+			}),
+			altsrc.NewStringFlag(&cli.StringFlag{
+				Name:    "auth-domain",
+				Usage:   "Cloudflare Access authentication domain for your account (eg. mysite.cloudflareaccess.com)",
+				EnvVars: []string{"TUNNEL_ACCESS_AUTH_DOMAIN"},
+			}),
+			altsrc.NewStringFlag(&cli.StringFlag{
+				Name:    "application-aud",
+				Usage:   "Cloudflare Access application \"AUD\" to verify JWTs from requests",
+				EnvVars: []string{"TUNNEL_ACCESS_APPLICATION_AUD"},
+			}),
+			altsrc.NewBoolFlag(&cli.BoolFlag{
+				Name:    "insecure",
+				Usage:   "Disable authentication, the database will be open to the Internet",
+				Value:   false,
+				EnvVars: []string{"TUNNEL_ACCESS_INSECURE"},
+			}),
+			altsrc.NewBoolFlag(&cli.BoolFlag{
+				Name:    "playground",
+				Usage:   "Run a temporary, in-memory SQLite3 database for testing",
+				Value:   false,
+				EnvVars: []string{"TUNNEL_HELLO_WORLD"},
+			}),
+			altsrc.NewStringFlag(&cli.StringFlag{
+				Name:    "loglevel",
+				Value:   "debug", // Make it more verbose than the tunnel default 'info'.
+				EnvVars: []string{"TUNNEL_LOGLEVEL"},
+				Hidden:  true,
+			}),
+		},
+		Before: CmdBefore,
+		Action: CmdAction,
+		Hidden: true,
+	}
+}
+
+// CmdBefore runs some validation checks before running the command.
+func CmdBefore(c *cli.Context) error {
+	// Show the help text is no flags are specified.
+	if c.NumFlags() == 0 {
+		return cli.ShowSubcommandHelp(c)
+	}
+
+	// Hello-world and playground are synonymous with each other,
+	// unset hello-world to prevent tunnel from initializing the hello package.
+	if c.IsSet("hello-world") {
+		c.Set("playground", "true")
+		c.Set("hello-world", "false")
+	}
+
+	// Unix-socket database urls are supported, but the logic is the same as url.
+	if c.IsSet("unix-socket") {
+		c.Set("url", c.String("unix-socket"))
+		c.Set("unix-socket", "")
+	}
+
+	// When playground mode is enabled, run with an in-memory database.
+	if c.IsSet("playground") {
+		c.Set("url", "sqlite3::memory:?cache=shared")
+		c.Set("insecure", strconv.FormatBool(!c.IsSet("auth-domain") && !c.IsSet("application-aud")))
+	}
+
+	// At this point, insecure configurations are valid.
+	if c.Bool("insecure") {
+		return nil
+	}
+
+	// Ensure that secure configurations specify a hostname, domain, and tag for JWT validation.
+	if !c.IsSet("hostname") || !c.IsSet("auth-domain") || !c.IsSet("application-aud") {
+		log.Fatal("must specify --hostname, --auth-domain, and --application-aud unless you want to run in --insecure mode")
+	}
+
+	return nil
+}
+
+// CmdAction starts the Proxy and sets the url in cli.Context to point to the Proxy address.
+func CmdAction(c *cli.Context) error {
+	// STOR-612: sync with context in tunnel daemon.
+	ctx := context.Background()
+
+	var proxy *Proxy
+	var err error
+	if c.Bool("insecure") {
+		proxy, err = NewInsecureProxy(ctx, c.String("url"))
+	} else {
+		proxy, err = NewSecureProxy(ctx, c.String("url"), c.String("auth-domain"), c.String("application-aud"))
+	}
+
+	if err != nil {
+		log.Fatal(err)
+		return err
+	}
+
+	listenerC := make(chan net.Listener)
+	defer close(listenerC)
+
+	// Since the Proxy should only talk to the tunnel daemon, find the next available
+	// localhost port and start to listen to requests.
+	go func() {
+		err := proxy.Start(ctx, "127.0.0.1:", listenerC)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}()
+
+	// Block until the the Proxy is online, retreive its address, and change the url to point to it.
+	// This is effectively "handing over" control to the tunnel package so it can run the tunnel daemon.
+	c.Set("url", "https://"+(<-listenerC).Addr().String())
+
+	return nil
+}
@@ -0,0 +1,27 @@
+package dbconnect
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"gopkg.in/urfave/cli.v2"
+)
+
+func TestCmd(t *testing.T) {
+	tests := [][]string{
+		{"cloudflared", "db-connect", "--playground"},
+		{"cloudflared", "db-connect", "--playground", "--hostname", "sql.mysite.com"},
+		{"cloudflared", "db-connect", "--url", "sqlite3::memory:?cache=shared", "--insecure"},
+		{"cloudflared", "db-connect", "--url", "sqlite3::memory:?cache=shared", "--hostname", "sql.mysite.com", "--auth-domain", "mysite.cloudflareaccess.com", "--application-aud", "aud"},
+	}
+
+	app := &cli.App{
+		Name:     "cloudflared",
+		Commands: []*cli.Command{Cmd()},
+	}
+
+	for _, test := range tests {
+		assert.NoError(t, app.Run(test))
+	}
+}
@@ -0,0 +1,271 @@
+package dbconnect
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/cloudflare/cloudflared/hello"
+	"github.com/cloudflare/cloudflared/validation"
+	"github.com/gorilla/mux"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+// Proxy is an HTTP server that proxies requests to a Client.
+type Proxy struct {
+	client          Client
+	accessValidator *validation.Access
+	logger          *logrus.Logger
+}
+
+// NewInsecureProxy creates a Proxy that talks to a Client at an origin.
+//
+// In insecure mode, the Proxy will allow all Command requests.
+func NewInsecureProxy(ctx context.Context, origin string) (*Proxy, error) {
+	originURL, err := url.Parse(origin)
+	if err != nil {
+		return nil, errors.Wrap(err, "must provide a valid database url")
+	}
+
+	client, err := NewClient(ctx, originURL)
+	if err != nil {
+		return nil, err
+	}
+
+	err = client.Ping(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not connect to the database")
+	}
+
+	return &Proxy{client, nil, logrus.New()}, nil
+}
+
+// NewSecureProxy creates a Proxy that talks to a Client at an origin.
+//
+// In secure mode, the Proxy will reject any Command requests that are
+// not authenticated by Cloudflare Access with a valid JWT.
+func NewSecureProxy(ctx context.Context, origin, authDomain, applicationAUD string) (*Proxy, error) {
+	proxy, err := NewInsecureProxy(ctx, origin)
+	if err != nil {
+		return nil, err
+	}
+
+	validator, err := validation.NewAccessValidator(ctx, authDomain, authDomain, applicationAUD)
+	if err != nil {
+		return nil, err
+	}
+
+	proxy.accessValidator = validator
+
+	return proxy, err
+}
+
+// IsInsecure gets whether the Proxy will accept a Command from any source.
+func (proxy *Proxy) IsInsecure() bool {
+	return proxy.accessValidator == nil
+}
+
+// IsAllowed checks whether a http.Request is allowed to receive data.
+//
+// By default, requests must pass through Cloudflare Access for authentication.
+// If the proxy is explcitly set to insecure mode, all requests will be allowed.
+func (proxy *Proxy) IsAllowed(r *http.Request, verbose ...bool) bool {
+	if proxy.IsInsecure() {
+		return true
+	}
+
+	// Access and Tunnel should prevent bad JWTs from even reaching the origin,
+	// but validate tokens anyway as an abundance of caution.
+	err := proxy.accessValidator.ValidateRequest(r.Context(), r)
+	if err == nil {
+		return true
+	}
+
+	// Warn administrators that invalid JWTs are being rejected. This is indicative
+	// of either a misconfiguration of the CLI or a massive failure of upstream systems.
+	if len(verbose) > 0 {
+		proxy.httpLog(r, err).Error("Failed JWT authentication")
+	}
+
+	return false
+}
+
+// Start the Proxy at a given address and notify the listener channel when the server is online.
+func (proxy *Proxy) Start(ctx context.Context, addr string, listenerC chan<- net.Listener) error {
+	// STOR-611: use a seperate listener and consider web socket support.
+	httpListener, err := hello.CreateTLSListener(addr)
+	if err != nil {
+		return errors.Wrapf(err, "could not create listener at %s", addr)
+	}
+
+	errC := make(chan error)
+	defer close(errC)
+
+	// Starts the HTTP server and begins to serve requests.
+	go func() {
+		errC <- proxy.httpListen(ctx, httpListener)
+	}()
+
+	// Continually ping the server until it comes online or 10 attempts fail.
+	go func() {
+		var err error
+		for i := 0; i < 10; i++ {
+			_, err = http.Get("http://" + httpListener.Addr().String())
+
+			// Once no error was detected, notify the listener channel and return.
+			if err == nil {
+				listenerC <- httpListener
+				return
+			}
+
+			// Backoff between requests to ping the server.
+			<-time.After(1 * time.Second)
+		}
+		errC <- errors.Wrap(err, "took too long for the http server to start")
+	}()
+
+	return <-errC
+}
+
+// httpListen starts the httpServer and blocks until the context closes.
+func (proxy *Proxy) httpListen(ctx context.Context, listener net.Listener) error {
+	httpServer := &http.Server{
+		Addr:         listener.Addr().String(),
+		Handler:      proxy.httpRouter(),
+		ReadTimeout:  10 * time.Second,
+		WriteTimeout: 60 * time.Second,
+		IdleTimeout:  60 * time.Second,
+	}
+
+	go func() {
+		<-ctx.Done()
+		httpServer.Close()
+		listener.Close()
+	}()
+
+	return httpServer.Serve(listener)
+}
+
+// httpRouter creates a mux.Router for the Proxy.
+func (proxy *Proxy) httpRouter() *mux.Router {
+	router := mux.NewRouter()
+
+	router.HandleFunc("/ping", proxy.httpPing()).Methods("GET", "HEAD")
+	router.HandleFunc("/submit", proxy.httpSubmit()).Methods("POST")
+
+	return router
+}
+
+// httpPing tests the connection to the database.
+//
+// By default, this endpoint is unauthenticated to allow for health checks.
+// To enable authentication, Cloudflare Access must be enabled on this route.
+func (proxy *Proxy) httpPing() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+		err := proxy.client.Ping(ctx)
+
+		if err == nil {
+			proxy.httpRespond(w, r, http.StatusOK, "")
+		} else {
+			proxy.httpRespondErr(w, r, http.StatusInternalServerError, err)
+		}
+	}
+}
+
+// httpSubmit sends a command to the database and returns its response.
+//
+// By default, this endpoint will reject requests that do not pass through Cloudflare Access.
+// To disable authentication, the --insecure flag must be specified in the command line.
+func (proxy *Proxy) httpSubmit() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !proxy.IsAllowed(r, true) {
+			proxy.httpRespondErr(w, r, http.StatusForbidden, fmt.Errorf(""))
+			return
+		}
+
+		var cmd Command
+		err := json.NewDecoder(r.Body).Decode(&cmd)
+		if err != nil {
+			proxy.httpRespondErr(w, r, http.StatusBadRequest, err)
+			return
+		}
+
+		ctx := r.Context()
+		data, err := proxy.client.Submit(ctx, &cmd)
+
+		if err != nil {
+			proxy.httpRespondErr(w, r, http.StatusUnprocessableEntity, err)
+			return
+		}
+
+		w.Header().Set("Content-type", "application/json")
+		err = json.NewEncoder(w).Encode(data)
+		if err != nil {
+			proxy.httpRespondErr(w, r, http.StatusInternalServerError, err)
+		}
+	}
+}
+
+// httpRespond writes a status code and string response to the response writer.
+func (proxy *Proxy) httpRespond(w http.ResponseWriter, r *http.Request, status int, message string) {
+	w.WriteHeader(status)
+
+	// Only expose the message detail of the reponse if the request is not HEAD
+	// and the user is authenticated. For example, this prevents an unauthenticated
+	// failed health check from accidentally leaking sensitive information about the Client.
+	if r.Method != http.MethodHead && proxy.IsAllowed(r) {
+		if message == "" {
+			message = http.StatusText(status)
+		}
+		fmt.Fprint(w, message)
+	}
+}
+
+// httpRespondErr is similar to httpRespond, except it formats errors to be more friendly.
+func (proxy *Proxy) httpRespondErr(w http.ResponseWriter, r *http.Request, defaultStatus int, err error) {
+	status, err := httpError(defaultStatus, err)
+
+	proxy.httpRespond(w, r, status, err.Error())
+	if len(err.Error()) > 0 {
+		proxy.httpLog(r, err).Warn("Database proxy error")
+	}
+}
+
+// httpLog returns a logrus.Entry that is formatted to output a request Cf-ray.
+func (proxy *Proxy) httpLog(r *http.Request, err error) *logrus.Entry {
+	return proxy.logger.WithContext(r.Context()).WithField("CF-RAY", r.Header.Get("Cf-ray")).WithError(err)
+}
+
+// httpError extracts common errors and returns an status code and friendly error.
+func httpError(defaultStatus int, err error) (int, error) {
+	if err == nil {
+		return http.StatusNotImplemented, fmt.Errorf("error expected but found none")
+	}
+
+	if err == io.EOF {
+		return http.StatusBadRequest, fmt.Errorf("request body cannot be empty")
+	}
+
+	if err == context.DeadlineExceeded {
+		return http.StatusRequestTimeout, err
+	}
+
+	_, ok := err.(net.Error)
+	if ok {
+		return http.StatusRequestTimeout, err
+	}
+
+	if err == context.Canceled {
+		// Does not exist in Golang, but would be: http.StatusClientClosedWithoutResponse
+		return 444, err
+	}
+
+	return defaultStatus, err
+}
@@ -0,0 +1,238 @@
+package dbconnect
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/gorilla/mux"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewInsecureProxy(t *testing.T) {
+	origins := []string{
+		"",
+		":/",
+		"http://localhost",
+		"tcp://localhost:9000?debug=true",
+		"mongodb://127.0.0.1",
+	}
+
+	for _, origin := range origins {
+		proxy, err := NewInsecureProxy(context.Background(), origin)
+
+		assert.Error(t, err)
+		assert.Empty(t, proxy)
+	}
+}
+
+func TestProxyIsAllowed(t *testing.T) {
+	proxy := helperNewProxy(t)
+	req := httptest.NewRequest("GET", "https://1.1.1.1/ping", nil)
+	assert.True(t, proxy.IsAllowed(req))
+
+	proxy = helperNewProxy(t, true)
+	req.Header.Set("Cf-access-jwt-assertion", "xxx")
+	assert.False(t, proxy.IsAllowed(req))
+}
+
+func TestProxyStart(t *testing.T) {
+	proxy := helperNewProxy(t)
+	ctx := context.Background()
+	listenerC := make(chan net.Listener)
+
+	err := proxy.Start(ctx, "1.1.1.1:", listenerC)
+	assert.Error(t, err)
+
+	err = proxy.Start(ctx, "127.0.0.1:-1", listenerC)
+	assert.Error(t, err)
+
+	ctx, cancel := context.WithTimeout(ctx, 0)
+	defer cancel()
+
+	err = proxy.Start(ctx, "127.0.0.1:", listenerC)
+	assert.IsType(t, http.ErrServerClosed, err)
+}
+
+func TestProxyHTTPRouter(t *testing.T) {
+	proxy := helperNewProxy(t)
+	router := proxy.httpRouter()
+
+	tests := []struct {
+		path   string
+		method string
+		valid  bool
+	}{
+		{"", "GET", false},
+		{"/", "GET", false},
+		{"/ping", "GET", true},
+		{"/ping", "HEAD", true},
+		{"/ping", "POST", false},
+		{"/submit", "POST", true},
+		{"/submit", "GET", false},
+		{"/submit/extra", "POST", false},
+	}
+
+	for _, test := range tests {
+		match := &mux.RouteMatch{}
+		ok := router.Match(httptest.NewRequest(test.method, "https://1.1.1.1"+test.path, nil), match)
+
+		assert.True(t, ok == test.valid, test.path)
+	}
+}
+
+func TestProxyHTTPPing(t *testing.T) {
+	proxy := helperNewProxy(t)
+
+	server := httptest.NewServer(proxy.httpPing())
+	defer server.Close()
+	client := server.Client()
+
+	res, err := client.Get(server.URL)
+	assert.NoError(t, err)
+	assert.Equal(t, http.StatusOK, res.StatusCode)
+	assert.Equal(t, int64(2), res.ContentLength)
+
+	res, err = client.Head(server.URL)
+	assert.NoError(t, err)
+	assert.Equal(t, http.StatusOK, res.StatusCode)
+	assert.Equal(t, int64(-1), res.ContentLength)
+}
+
+func TestProxyHTTPSubmit(t *testing.T) {
+	proxy := helperNewProxy(t)
+
+	server := httptest.NewServer(proxy.httpSubmit())
+	defer server.Close()
+	client := server.Client()
+
+	tests := []struct {
+		input  string
+		status int
+		output string
+	}{
+		{"", http.StatusBadRequest, "request body cannot be empty"},
+		{"{}", http.StatusBadRequest, "cannot provide an empty statement"},
+		{"{\"statement\":\"Ok\"}", http.StatusUnprocessableEntity, "cannot provide invalid sql mode: ''"},
+		{"{\"statement\":\"Ok\",\"mode\":\"query\"}", http.StatusUnprocessableEntity, "near \"Ok\": syntax error"},
+		{"{\"statement\":\"CREATE TABLE t (a INT);\",\"mode\":\"exec\"}", http.StatusOK, "{\"last_insert_id\":0,\"rows_affected\":0}\n"},
+	}
+
+	for _, test := range tests {
+		res, err := client.Post(server.URL, "application/json", strings.NewReader(test.input))
+
+		assert.NoError(t, err)
+		assert.Equal(t, test.status, res.StatusCode)
+		if res.StatusCode > http.StatusOK {
+			assert.Equal(t, "text/plain; charset=utf-8", res.Header.Get("Content-type"))
+		} else {
+			assert.Equal(t, "application/json", res.Header.Get("Content-type"))
+		}
+
+		data, err := ioutil.ReadAll(res.Body)
+		defer res.Body.Close()
+		str := string(data)
+
+		assert.NoError(t, err)
+		assert.Equal(t, test.output, str)
+	}
+}
+
+func TestProxyHTTPSubmitForbidden(t *testing.T) {
+	proxy := helperNewProxy(t, true)
+
+	server := httptest.NewServer(proxy.httpSubmit())
+	defer server.Close()
+	client := server.Client()
+
+	res, err := client.Get(server.URL)
+
+	assert.NoError(t, err)
+	assert.Equal(t, http.StatusForbidden, res.StatusCode)
+	assert.Zero(t, res.ContentLength)
+}
+
+func TestProxyHTTPRespond(t *testing.T) {
+	proxy := helperNewProxy(t)
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		proxy.httpRespond(w, r, http.StatusAccepted, "Hello")
+	}))
+	defer server.Close()
+	client := server.Client()
+
+	res, err := client.Get(server.URL)
+	assert.NoError(t, err)
+	assert.Equal(t, http.StatusAccepted, res.StatusCode)
+	assert.Equal(t, int64(5), res.ContentLength)
+
+	data, err := ioutil.ReadAll(res.Body)
+	defer res.Body.Close()
+	assert.Equal(t, []byte("Hello"), data)
+}
+
+func TestProxyHTTPRespondForbidden(t *testing.T) {
+	proxy := helperNewProxy(t, true)
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		proxy.httpRespond(w, r, http.StatusAccepted, "Hello")
+	}))
+	defer server.Close()
+	client := server.Client()
+
+	res, err := client.Get(server.URL)
+
+	assert.NoError(t, err)
+	assert.Equal(t, http.StatusAccepted, res.StatusCode)
+	assert.Equal(t, int64(0), res.ContentLength)
+}
+
+func TestHTTPError(t *testing.T) {
+	_, errTimeout := net.DialTimeout("tcp", "127.0.0.1", 0)
+	assert.Error(t, errTimeout)
+
+	tests := []struct {
+		input  error
+		status int
+		output error
+	}{
+		{nil, http.StatusNotImplemented, fmt.Errorf("error expected but found none")},
+		{io.EOF, http.StatusBadRequest, fmt.Errorf("request body cannot be empty")},
+		{context.DeadlineExceeded, http.StatusRequestTimeout, nil},
+		{context.Canceled, 444, nil},
+		{errTimeout, http.StatusRequestTimeout, nil},
+		{fmt.Errorf(""), http.StatusInternalServerError, nil},
+	}
+
+	for _, test := range tests {
+		status, err := httpError(http.StatusInternalServerError, test.input)
+
+		assert.Error(t, err)
+		assert.Equal(t, test.status, status)
+		if test.output == nil {
+			test.output = test.input
+		}
+		assert.Equal(t, test.output, err)
+	}
+}
+
+func helperNewProxy(t *testing.T, secure ...bool) *Proxy {
+	t.Helper()
+
+	proxy, err := NewSecureProxy(context.Background(), "file::memory:?cache=shared", "test.cloudflareaccess.com", "")
+	assert.NoError(t, err)
+	assert.NotNil(t, proxy)
+
+	if len(secure) == 0 {
+		proxy.accessValidator = nil // Mark as insecure
+	}
+
+	return proxy
+}
@@ -0,0 +1,318 @@
+package dbconnect
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"reflect"
+	"strings"
+
+	"github.com/jmoiron/sqlx"
+	"github.com/pkg/errors"
+	"github.com/xo/dburl"
+
+	// SQL drivers self-register with the database/sql package.
+	// https://github.com/golang/go/wiki/SQLDrivers
+	_ "github.com/denisenkom/go-mssqldb"
+	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/mattn/go-sqlite3"
+
+	"github.com/kshvakov/clickhouse"
+	"github.com/lib/pq"
+)
+
+// SQLClient is a Client that talks to a SQL database.
+type SQLClient struct {
+	Dialect string
+	driver  *sqlx.DB
+}
+
+// NewSQLClient creates a SQL client based on its URL scheme.
+func NewSQLClient(ctx context.Context, originURL *url.URL) (Client, error) {
+	res, err := dburl.Parse(originURL.String())
+	if err != nil {
+		helpText := fmt.Sprintf("supported drivers: %+q, see documentation for more details: %s", sql.Drivers(), "https://godoc.org/github.com/xo/dburl")
+		return nil, fmt.Errorf("could not parse sql database url '%s': %s\n%s", originURL, err.Error(), helpText)
+	}
+
+	// Establishes the driver, but does not test the connection.
+	driver, err := sqlx.Open(res.Driver, res.DSN)
+	if err != nil {
+		return nil, fmt.Errorf("could not open sql driver %s: %s\n%s", res.Driver, err.Error(), res.DSN)
+	}
+
+	// Closes the driver, will occur when the context finishes.
+	go func() {
+		<-ctx.Done()
+		driver.Close()
+	}()
+
+	return &SQLClient{driver.DriverName(), driver}, nil
+}
+
+// Ping verifies a connection to the database is still alive.
+func (client *SQLClient) Ping(ctx context.Context) error {
+	return client.driver.PingContext(ctx)
+}
+
+// Submit queries or executes a command to the SQL database.
+func (client *SQLClient) Submit(ctx context.Context, cmd *Command) (interface{}, error) {
+	txx, err := cmd.ValidateSQL(client.Dialect)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx, cancel := context.WithTimeout(ctx, cmd.Timeout)
+	defer cancel()
+
+	var res interface{}
+
+	// Get the next available sql.Conn and submit the Command.
+	err = sqlConn(ctx, client.driver, txx, func(conn *sql.Conn) error {
+		stmt := cmd.Statement
+		args := cmd.Arguments.Positional
+
+		if cmd.Mode == "query" {
+			res, err = sqlQuery(ctx, conn, stmt, args)
+		} else {
+			res, err = sqlExec(ctx, conn, stmt, args)
+		}
+
+		return err
+	})
+
+	return res, err
+}
+
+// ValidateSQL extends the contract of Command for SQL dialects:
+// mode is conformed, arguments are []sql.NamedArg, and isolation is a sql.IsolationLevel.
+//
+// When the command should not be wrapped in a transaction, *sql.TxOptions and error will both be nil.
+func (cmd *Command) ValidateSQL(dialect string) (*sql.TxOptions, error) {
+	err := cmd.Validate()
+	if err != nil {
+		return nil, err
+	}
+
+	mode, err := sqlMode(cmd.Mode)
+	if err != nil {
+		return nil, err
+	}
+
+	// Mutates Arguments to only use positional arguments with the type sql.NamedArg.
+	// This is a required by the sql.Driver before submitting arguments.
+	cmd.Arguments.sql(dialect)
+
+	iso, err := sqlIsolation(cmd.Isolation)
+	if err != nil {
+		return nil, err
+	}
+
+	// When isolation is out-of-range, this is indicative that no
+	// transaction should be executed and sql.TxOptions should be nil.
+	if iso < sql.LevelDefault {
+		return nil, nil
+	}
+
+	// In query mode, execute the transaction in read-only, unless it's Microsoft SQL
+	// which does not support that type of transaction.
+	readOnly := mode == "query" && dialect != "mssql"
+
+	return &sql.TxOptions{Isolation: iso, ReadOnly: readOnly}, nil
+}
+
+// sqlConn gets the next available sql.Conn in the connection pool and runs a function to use it.
+//
+// If the transaction options are nil, run the useIt function outside a transaction.
+// This is potentially an unsafe operation if the command does not clean up its state.
+func sqlConn(ctx context.Context, driver *sqlx.DB, txx *sql.TxOptions, useIt func(*sql.Conn) error) error {
+	conn, err := driver.Conn(ctx)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	// If transaction options are specified, begin and defer a rollback to catch errors.
+	var tx *sql.Tx
+	if txx != nil {
+		tx, err = conn.BeginTx(ctx, txx)
+		if err != nil {
+			return err
+		}
+		defer tx.Rollback()
+	}
+
+	err = useIt(conn)
+
+	// Check if useIt was successful and a transaction exists before committing.
+	if err == nil && tx != nil {
+		err = tx.Commit()
+	}
+
+	return err
+}
+
+// sqlQuery queries rows on a sql.Conn and returns an array of result objects.
+func sqlQuery(ctx context.Context, conn *sql.Conn, stmt string, args []interface{}) ([]map[string]interface{}, error) {
+	rows, err := conn.QueryContext(ctx, stmt, args...)
+	if err == nil {
+		return sqlRows(rows)
+	}
+	return nil, err
+}
+
+// sqlExec executes a command on a sql.Conn and returns the result of the operation.
+func sqlExec(ctx context.Context, conn *sql.Conn, stmt string, args []interface{}) (sqlResult, error) {
+	exec, err := conn.ExecContext(ctx, stmt, args...)
+	if err == nil {
+		return sqlResultFrom(exec), nil
+	}
+	return sqlResult{}, err
+}
+
+// sql mutates Arguments to contain a positional []sql.NamedArg.
+//
+// The actual return type is []interface{} due to the native Golang
+// function signatures for sql.Exec and sql.Query being generic.
+func (args *Arguments) sql(dialect string) {
+	result := args.Positional
+
+	for i, val := range result {
+		result[i] = sqlArg("", val, dialect)
+	}
+
+	for key, val := range args.Named {
+		result = append(result, sqlArg(key, val, dialect))
+	}
+
+	args.Positional = result
+	args.Named = map[string]interface{}{}
+}
+
+// sqlArg creates a sql.NamedArg from a key-value pair and an optional dialect.
+//
+// Certain dialects will need to wrap objects, such as arrays, to conform its driver requirements.
+func sqlArg(key, val interface{}, dialect string) sql.NamedArg {
+	switch reflect.ValueOf(val).Kind() {
+
+	// PostgreSQL and Clickhouse require arrays to be wrapped before
+	// being inserted into the driver interface.
+	case reflect.Slice, reflect.Array:
+		switch dialect {
+		case "postgres":
+			val = pq.Array(val)
+		case "clickhouse":
+			val = clickhouse.Array(val)
+		}
+	}
+
+	return sql.Named(fmt.Sprint(key), val)
+}
+
+// sqlIsolation tries to match a string to a sql.IsolationLevel.
+func sqlIsolation(str string) (sql.IsolationLevel, error) {
+	if str == "none" {
+		return sql.IsolationLevel(-1), nil
+	}
+
+	for iso := sql.LevelDefault; ; iso++ {
+		if iso > sql.LevelLinearizable {
+			return -1, fmt.Errorf("cannot provide an invalid sql isolation level: '%s'", str)
+		}
+
+		if str == "" || strings.EqualFold(iso.String(), strings.ReplaceAll(str, "_", " ")) {
+			return iso, nil
+		}
+	}
+}
+
+// sqlMode tries to match a string to a command mode: 'query' or 'exec' for now.
+func sqlMode(str string) (string, error) {
+	switch str {
+	case "query", "exec":
+		return str, nil
+	default:
+		return "", fmt.Errorf("cannot provide invalid sql mode: '%s'", str)
+	}
+}
+
+// sqlRows scans through a SQL result set and returns an array of objects.
+func sqlRows(rows *sql.Rows) ([]map[string]interface{}, error) {
+	columns, err := rows.Columns()
+	if err != nil {
+		return nil, errors.Wrap(err, "could not extract columns from result")
+	}
+	defer rows.Close()
+
+	types, err := rows.ColumnTypes()
+	if err != nil {
+		// Some drivers do not support type extraction, so fail silently and continue.
+		types = make([]*sql.ColumnType, len(columns))
+	}
+
+	values := make([]interface{}, len(columns))
+	pointers := make([]interface{}, len(columns))
+
+	var results []map[string]interface{}
+	for rows.Next() {
+		for i := range columns {
+			pointers[i] = &values[i]
+		}
+		rows.Scan(pointers...)
+
+		// Convert a row, an array of values, into an object where
+		// each key is the name of its respective column.
+		entry := make(map[string]interface{})
+		for i, col := range columns {
+			entry[col] = sqlValue(values[i], types[i])
+		}
+		results = append(results, entry)
+	}
+
+	return results, nil
+}
+
+// sqlValue handles special cases where sql.Rows does not return a "human-readable" object.
+func sqlValue(val interface{}, col *sql.ColumnType) interface{} {
+	bytes, ok := val.([]byte)
+	if ok {
+		// Opportunistically check for embeded JSON and convert it to a first-class object.
+		var embeded interface{}
+		if json.Unmarshal(bytes, &embeded) == nil {
+			return embeded
+		}
+
+		// STOR-604: investigate a way to coerce PostgreSQL arrays '{a, b, ...}' into JSON.
+		// Although easy with strings, it becomes more difficult with special types like INET[].
+
+		return string(bytes)
+	}
+
+	return val
+}
+
+// sqlResult is a thin wrapper around sql.Result.
+type sqlResult struct {
+	LastInsertId int64 `json:"last_insert_id"`
+	RowsAffected int64 `json:"rows_affected"`
+}
+
+// sqlResultFrom converts sql.Result into a JSON-marshable sqlResult.
+func sqlResultFrom(res sql.Result) sqlResult {
+	insertID, errID := res.LastInsertId()
+	rowsAffected, errRows := res.RowsAffected()
+
+	// If an error occurs when extracting the result, it is because the
+	// driver does not support that specific field. Instead of passing this
+	// to the user, omit the field in the response.
+	if errID != nil {
+		insertID = -1
+	}
+	if errRows != nil {
+		rowsAffected = -1
+	}
+
+	return sqlResult{insertID, rowsAffected}
+}
@@ -0,0 +1,336 @@
+package dbconnect
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"net/url"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/kshvakov/clickhouse"
+	"github.com/lib/pq"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewSQLClient(t *testing.T) {
+	originURLs := []string{
+		"postgres://localhost",
+		"cockroachdb://localhost:1337",
+		"postgresql://user:pass@127.0.0.1",
+		"mysql://localhost",
+		"clickhouse://127.0.0.1:9000/?debug",
+		"sqlite3::memory:",
+		"file:test.db?cache=shared",
+	}
+
+	for _, originURL := range originURLs {
+		origin, _ := url.Parse(originURL)
+		_, err := NewSQLClient(context.Background(), origin)
+
+		assert.NoError(t, err, originURL)
+	}
+
+	originURLs = []string{
+		"",
+		"/",
+		"http://localhost",
+		"coolthing://user:pass@127.0.0.1",
+	}
+
+	for _, originURL := range originURLs {
+		origin, _ := url.Parse(originURL)
+		_, err := NewSQLClient(context.Background(), origin)
+
+		assert.Error(t, err, originURL)
+	}
+}
+
+func TestArgumentsSQL(t *testing.T) {
+	args := []Arguments{
+		Arguments{
+			Positional: []interface{}{
+				"val", 10, 3.14,
+			},
+		},
+		Arguments{
+			Named: map[string]interface{}{
+				"key": time.Unix(0, 0),
+			},
+		},
+	}
+
+	var nameType sql.NamedArg
+	for _, arg := range args {
+		arg.sql("")
+		for _, named := range arg.Positional {
+			assert.IsType(t, nameType, named)
+		}
+	}
+}
+
+func TestSQLArg(t *testing.T) {
+	tests := []struct {
+		key     interface{}
+		val     interface{}
+		dialect string
+		arg     sql.NamedArg
+	}{
+		{"key", "val", "mssql", sql.Named("key", "val")},
+		{0, 1, "sqlite3", sql.Named("0", 1)},
+		{1, []string{"a", "b", "c"}, "postgres", sql.Named("1", pq.Array([]string{"a", "b", "c"}))},
+		{"in", []uint{0, 1}, "clickhouse", sql.Named("in", clickhouse.Array([]uint{0, 1}))},
+		{"", time.Unix(0, 0), "", sql.Named("", time.Unix(0, 0))},
+	}
+
+	for _, test := range tests {
+		arg := sqlArg(test.key, test.val, test.dialect)
+		assert.Equal(t, test.arg, arg, test.key)
+	}
+}
+
+func TestSQLIsolation(t *testing.T) {
+	tests := []struct {
+		str string
+		iso sql.IsolationLevel
+	}{
+		{"", sql.LevelDefault},
+		{"DEFAULT", sql.LevelDefault},
+		{"read_UNcommitted", sql.LevelReadUncommitted},
+		{"serializable", sql.LevelSerializable},
+		{"none", sql.IsolationLevel(-1)},
+		{"SNAP shot", -2},
+		{"blah", -2},
+	}
+
+	for _, test := range tests {
+		iso, err := sqlIsolation(test.str)
+
+		if test.iso < -1 {
+			assert.Error(t, err, test.str)
+		} else {
+			assert.NoError(t, err)
+			assert.Equal(t, test.iso, iso, test.str)
+		}
+	}
+}
+
+func TestSQLMode(t *testing.T) {
+	modes := []string{
+		"query",
+		"exec",
+	}
+
+	for _, mode := range modes {
+		actual, err := sqlMode(mode)
+
+		assert.NoError(t, err)
+		assert.Equal(t, strings.ToLower(mode), actual, mode)
+	}
+
+	modes = []string{
+		"",
+		"blah",
+	}
+
+	for _, mode := range modes {
+		_, err := sqlMode(mode)
+
+		assert.Error(t, err)
+	}
+}
+
+func helperRows(mockRows *sqlmock.Rows) *sql.Rows {
+	db, mock, _ := sqlmock.New()
+	mock.ExpectQuery("SELECT").WillReturnRows(mockRows)
+	rows, _ := db.Query("SELECT")
+	return rows
+}
+
+func TestSQLRows(t *testing.T) {
+	actual, err := sqlRows(helperRows(sqlmock.NewRows(
+		[]string{"name", "age", "dept"}).
+		AddRow("alice", 19, "prod")))
+	expected := []map[string]interface{}{map[string]interface{}{
+		"name": "alice",
+		"age":  int64(19),
+		"dept": "prod"}}
+
+	assert.NoError(t, err)
+	assert.ElementsMatch(t, expected, actual)
+}
+
+func TestSQLValue(t *testing.T) {
+	tests := []struct {
+		input  interface{}
+		output interface{}
+	}{
+		{"hello", "hello"},
+		{1, 1},
+		{false, false},
+		{[]byte("random"), "random"},
+		{[]byte("{\"json\":true}"), map[string]interface{}{"json": true}},
+		{[]byte("[]"), []interface{}{}},
+	}
+
+	for _, test := range tests {
+		assert.Equal(t, test.output, sqlValue(test.input, nil), test.input)
+	}
+}
+
+func TestSQLResultFrom(t *testing.T) {
+	res := sqlResultFrom(sqlmock.NewResult(1, 2))
+	assert.Equal(t, sqlResult{1, 2}, res)
+
+	res = sqlResultFrom(sqlmock.NewErrorResult(fmt.Errorf("")))
+	assert.Equal(t, sqlResult{-1, -1}, res)
+}
+
+func helperSQLite3(t *testing.T) (context.Context, Client) {
+	t.Helper()
+
+	ctx := context.Background()
+	url, _ := url.Parse("file::memory:?cache=shared")
+
+	sqlite3, err := NewSQLClient(ctx, url)
+	assert.NoError(t, err)
+
+	return ctx, sqlite3
+}
+
+func TestPing(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+	err := sqlite3.Ping(ctx)
+
+	assert.NoError(t, err)
+}
+
+func TestSubmit(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+
+	res, err := sqlite3.Submit(ctx, &Command{
+		Statement: "CREATE TABLE t (a INTEGER, b FLOAT, c TEXT, d BLOB);",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, sqlResult{0, 0}, res)
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+	})
+	assert.NoError(t, err)
+	assert.Empty(t, res)
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "INSERT INTO t VALUES (?, ?, ?, ?);",
+		Mode:      "exec",
+		Arguments: Arguments{
+			Positional: []interface{}{
+				1,
+				3.14,
+				"text",
+				"blob",
+			},
+		},
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, sqlResult{1, 1}, res)
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "UPDATE t SET c = NULL;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, sqlResult{1, 1}, res)
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "SELECT * FROM t WHERE a = ?;",
+		Mode:      "query",
+		Arguments: Arguments{
+			Positional: []interface{}{1},
+		},
+	})
+	assert.NoError(t, err)
+	assert.Len(t, res, 1)
+
+	resf, ok := res.([]map[string]interface{})
+	assert.True(t, ok)
+	assert.EqualValues(t, map[string]interface{}{
+		"a": int64(1),
+		"b": 3.14,
+		"c": nil,
+		"d": "blob",
+	}, resf[0])
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "DROP TABLE t;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, sqlResult{1, 1}, res)
+}
+
+func TestSubmitTransaction(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+
+	res, err := sqlite3.Submit(ctx, &Command{
+		Statement: "BEGIN;",
+		Mode:      "exec",
+	})
+	assert.Error(t, err)
+	assert.Empty(t, res)
+
+	res, err = sqlite3.Submit(ctx, &Command{
+		Statement: "BEGIN; CREATE TABLE tt (a INT); COMMIT;",
+		Mode:      "exec",
+		Isolation: "none",
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, sqlResult{0, 0}, res)
+
+	rows, err := sqlite3.Submit(ctx, &Command{
+		Statement: "SELECT * FROM tt;",
+		Mode:      "query",
+		Isolation: "repeatable_read",
+	})
+	assert.NoError(t, err)
+	assert.Empty(t, rows)
+}
+
+func TestSubmitTimeout(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+
+	res, err := sqlite3.Submit(ctx, &Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+		Timeout:   1 * time.Nanosecond,
+	})
+	assert.Error(t, err)
+	assert.Empty(t, res)
+}
+
+func TestSubmitMode(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+
+	res, err := sqlite3.Submit(ctx, &Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "notanoption",
+	})
+	assert.Error(t, err)
+	assert.Empty(t, res)
+}
+
+func TestSubmitEmpty(t *testing.T) {
+	ctx, sqlite3 := helperSQLite3(t)
+
+	res, err := sqlite3.Submit(ctx, &Command{
+		Statement: "; ; ; ;",
+		Mode:      "query",
+	})
+	assert.Error(t, err)
+	assert.Empty(t, res)
+}
@@ -0,0 +1,78 @@
+# docker-compose -f ./dbconnect_tests/dbconnect.yaml up --build --force-recreate --renew-anon-volumes --exit-code-from cloudflared
+
+version: "2.3"
+networks:
+  test-dbconnect-network:
+    driver: bridge
+services:
+  cloudflared:
+    build:
+      context: ../
+      dockerfile: dev.Dockerfile
+    command: go test github.com/cloudflare/cloudflared/dbconnect_tests -v
+    depends_on:
+      postgres:
+        condition: service_healthy
+      mysql:
+        condition: service_healthy
+      mssql:
+        condition: service_healthy
+      clickhouse:
+        condition: service_healthy
+    environment:
+      DBCONNECT_INTEGRATION_TEST: "true"
+      POSTGRESQL_URL: postgres://postgres:secret@postgres/db?sslmode=disable
+      MYSQL_URL: mysql://root:secret@mysql/db?tls=false
+      MSSQL_URL: mssql://sa:secret12345!@mssql
+      CLICKHOUSE_URL: clickhouse://clickhouse:9000/db
+    networks:
+      - test-dbconnect-network
+  postgres:
+    image: postgres:11.4-alpine
+    environment:
+      POSTGRES_DB: db
+      POSTGRES_PASSWORD: secret
+    healthcheck:
+      test: ["CMD", "pg_isready", "-U", "postgres"]
+      start_period: 3s
+      interval: 1s
+      timeout: 3s
+      retries: 10
+    networks:
+      - test-dbconnect-network
+  mysql:
+    image: mysql:8.0
+    environment:
+      MYSQL_DATABASE: db
+      MYSQL_ROOT_PASSWORD: secret
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping"]
+      start_period: 3s
+      interval: 1s
+      timeout: 3s
+      retries: 10
+    networks:
+      - test-dbconnect-network
+  mssql:
+    image: mcr.microsoft.com/mssql/server:2017-CU8-ubuntu
+    environment:
+      ACCEPT_EULA: "Y"
+      SA_PASSWORD: secret12345!
+    healthcheck:
+      test: ["CMD", "/opt/mssql-tools/bin/sqlcmd", "-S", "localhost", "-U", "sa", "-P", "secret12345!", "-Q", "SELECT 1"]
+      start_period: 3s
+      interval: 1s
+      timeout: 3s
+      retries: 10
+    networks:
+      - test-dbconnect-network
+  clickhouse:
+    image: yandex/clickhouse-server:19.11
+    healthcheck:
+      test: ["CMD", "clickhouse-client", "--query", "SELECT 1"]
+      start_period: 3s
+      interval: 1s
+      timeout: 3s
+      retries: 10
+    networks:
+      - test-dbconnect-network
@@ -0,0 +1,265 @@
+package dbconnect_tests
+
+import (
+	"context"
+	"log"
+	"net/url"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/cloudflare/cloudflared/dbconnect"
+)
+
+func TestIntegrationPostgreSQL(t *testing.T) {
+	ctx, pq := helperNewSQLClient(t, "POSTGRESQL_URL")
+
+	err := pq.Ping(ctx)
+	assert.NoError(t, err)
+
+	_, err = pq.Submit(ctx, &dbconnect.Command{
+		Statement: "CREATE TABLE t (a TEXT, b UUID, c JSON, d INET[], e SERIAL);",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	_, err = pq.Submit(ctx, &dbconnect.Command{
+		Statement: "INSERT INTO t VALUES ($1, $2, $3, $4);",
+		Mode:      "exec",
+		Arguments: dbconnect.Arguments{
+			Positional: []interface{}{
+				"text",
+				"6b8d686d-bd8e-43bc-b09a-cfcbbe702c10",
+				"{\"bool\":true,\"array\":[\"a\", 1, 3.14],\"embed\":{\"num\":21}}",
+				[]string{"1.1.1.1", "1.0.0.1"},
+			},
+		},
+	})
+	assert.NoError(t, err)
+
+	_, err = pq.Submit(ctx, &dbconnect.Command{
+		Statement: "UPDATE t SET b = NULL;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	res, err := pq.Submit(ctx, &dbconnect.Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+	})
+	assert.NoError(t, err)
+	assert.IsType(t, make([]map[string]interface{}, 0), res)
+
+	actual := res.([]map[string]interface{})[0]
+	expected := map[string]interface{}{
+		"a": "text",
+		"b": nil,
+		"c": map[string]interface{}{
+			"bool":  true,
+			"array": []interface{}{"a", float64(1), 3.14},
+			"embed": map[string]interface{}{"num": float64(21)},
+		},
+		"d": "{1.1.1.1,1.0.0.1}",
+		"e": int64(1),
+	}
+	assert.EqualValues(t, expected, actual)
+
+	_, err = pq.Submit(ctx, &dbconnect.Command{
+		Statement: "DROP TABLE t;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+}
+
+func TestIntegrationMySQL(t *testing.T) {
+	ctx, my := helperNewSQLClient(t, "MYSQL_URL")
+
+	err := my.Ping(ctx)
+	assert.NoError(t, err)
+
+	_, err = my.Submit(ctx, &dbconnect.Command{
+		Statement: "CREATE TABLE t (a CHAR, b TINYINT, c FLOAT, d JSON, e YEAR);",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	_, err = my.Submit(ctx, &dbconnect.Command{
+		Statement: "INSERT INTO t VALUES (?, ?, ?, ?, ?);",
+		Mode:      "exec",
+		Arguments: dbconnect.Arguments{
+			Positional: []interface{}{
+				"a",
+				10,
+				3.14,
+				"{\"bool\":true}",
+				2000,
+			},
+		},
+	})
+	assert.NoError(t, err)
+
+	_, err = my.Submit(ctx, &dbconnect.Command{
+		Statement: "ALTER TABLE t ADD COLUMN f GEOMETRY;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	res, err := my.Submit(ctx, &dbconnect.Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+	})
+	assert.NoError(t, err)
+	assert.IsType(t, make([]map[string]interface{}, 0), res)
+
+	actual := res.([]map[string]interface{})[0]
+	expected := map[string]interface{}{
+		"a": "a",
+		"b": float64(10),
+		"c": 3.14,
+		"d": map[string]interface{}{"bool": true},
+		"e": float64(2000),
+		"f": nil,
+	}
+	assert.EqualValues(t, expected, actual)
+
+	_, err = my.Submit(ctx, &dbconnect.Command{
+		Statement: "DROP TABLE t;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+}
+
+func TestIntegrationMSSQL(t *testing.T) {
+	ctx, ms := helperNewSQLClient(t, "MSSQL_URL")
+
+	err := ms.Ping(ctx)
+	assert.NoError(t, err)
+
+	_, err = ms.Submit(ctx, &dbconnect.Command{
+		Statement: "CREATE TABLE t (a BIT, b DECIMAL, c MONEY, d TEXT);",
+		Mode:      "exec"})
+	assert.NoError(t, err)
+
+	_, err = ms.Submit(ctx, &dbconnect.Command{
+		Statement: "INSERT INTO t VALUES (?, ?, ?, ?);",
+		Mode:      "exec",
+		Arguments: dbconnect.Arguments{
+			Positional: []interface{}{
+				0,
+				3,
+				"$0.99",
+				"text",
+			},
+		},
+	})
+	assert.NoError(t, err)
+
+	_, err = ms.Submit(ctx, &dbconnect.Command{
+		Statement: "UPDATE t SET d = NULL;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	res, err := ms.Submit(ctx, &dbconnect.Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+	})
+	assert.NoError(t, err)
+	assert.IsType(t, make([]map[string]interface{}, 0), res)
+
+	actual := res.([]map[string]interface{})[0]
+	expected := map[string]interface{}{
+		"a": false,
+		"b": float64(3),
+		"c": float64(0.99),
+		"d": nil,
+	}
+	assert.EqualValues(t, expected, actual)
+
+	_, err = ms.Submit(ctx, &dbconnect.Command{
+		Statement: "DROP TABLE t;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+}
+
+func TestIntegrationClickhouse(t *testing.T) {
+	ctx, ch := helperNewSQLClient(t, "CLICKHOUSE_URL")
+
+	err := ch.Ping(ctx)
+	assert.NoError(t, err)
+
+	_, err = ch.Submit(ctx, &dbconnect.Command{
+		Statement: "CREATE TABLE t (a UUID, b String, c Float64, d UInt32, e Int16, f Array(Enum8('a'=1, 'b'=2, 'c'=3))) engine=Memory;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+
+	_, err = ch.Submit(ctx, &dbconnect.Command{
+		Statement: "INSERT INTO t VALUES (?, ?, ?, ?, ?, ?);",
+		Mode:      "exec",
+		Arguments: dbconnect.Arguments{
+			Positional: []interface{}{
+				"ec65f626-6f50-4c86-9628-6314ef1edacd",
+				"",
+				3.14,
+				314,
+				-144,
+				[]string{"a", "b", "c"},
+			},
+		},
+	})
+	assert.NoError(t, err)
+
+	res, err := ch.Submit(ctx, &dbconnect.Command{
+		Statement: "SELECT * FROM t;",
+		Mode:      "query",
+	})
+	assert.NoError(t, err)
+	assert.IsType(t, make([]map[string]interface{}, 0), res)
+
+	actual := res.([]map[string]interface{})[0]
+	expected := map[string]interface{}{
+		"a": "ec65f626-6f50-4c86-9628-6314ef1edacd",
+		"b": "",
+		"c": float64(3.14),
+		"d": uint32(314),
+		"e": int16(-144),
+		"f": []string{"a", "b", "c"},
+	}
+	assert.EqualValues(t, expected, actual)
+
+	_, err = ch.Submit(ctx, &dbconnect.Command{
+		Statement: "DROP TABLE t;",
+		Mode:      "exec",
+	})
+	assert.NoError(t, err)
+}
+
+func helperNewSQLClient(t *testing.T, env string) (context.Context, dbconnect.Client) {
+	_, ok := os.LookupEnv("DBCONNECT_INTEGRATION_TEST")
+	if ok {
+		t.Helper()
+	} else {
+		t.SkipNow()
+	}
+
+	val, ok := os.LookupEnv(env)
+	if !ok {
+		log.Fatalf("must provide database url as environment variable: %s", env)
+	}
+
+	parsed, err := url.Parse(val)
+	if err != nil {
+		log.Fatalf("cannot provide invalid database url: %s=%s", env, val)
+	}
+
+	ctx := context.Background()
+	client, err := dbconnect.NewSQLClient(ctx, parsed)
+	if err != nil {
+		log.Fatalf("could not start test client: %s", err)
+	}
+
+	return ctx, client
+}
@@ -0,0 +1,4 @@
+FROM golang:1.12 as builder
+WORKDIR /go/src/github.com/cloudflare/cloudflared/
+RUN apt-get update
+COPY . .
@@ -0,0 +1,72 @@
+module github.com/cloudflare/cloudflared
+
+go 1.12
+
+require (
+	github.com/DATA-DOG/go-sqlmock v1.3.3
+	github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 // indirect
+	github.com/aws/aws-sdk-go v1.25.8
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/certifi/gocertifi v0.0.0-20180118203423-deb3ae2ef261 // indirect
+	github.com/cloudflare/brotli-go v0.0.0-20191101163834-d34379f7ff93
+	github.com/cloudflare/golibs v0.0.0-20170913112048-333127dbecfc
+	github.com/coredns/coredns v1.2.0
+	github.com/coreos/go-oidc v0.0.0-20171002155002-a93f71fdfe73
+	github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a
+	github.com/denisenkom/go-mssqldb v0.0.0-20191001013358-cfbb681360f0
+	github.com/equinox-io/equinox v1.2.0
+	github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
+	github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9 // indirect
+	github.com/facebookgo/grace v0.0.0-20180706040059-75cf19382434
+	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
+	github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 // indirect
+	github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
+	github.com/getsentry/raven-go v0.0.0-20180517221441-ed7bcb39ff10
+	github.com/gliderlabs/ssh v0.0.0-20191009160644-63518b5243e0
+	github.com/go-sql-driver/mysql v1.4.1
+	github.com/golang-collections/collections v0.0.0-20130729185459-604e922904d3
+	github.com/google/uuid v1.1.1
+	github.com/gorilla/mux v1.7.3
+	github.com/gorilla/websocket v1.2.0
+	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645 // indirect
+	github.com/jmoiron/sqlx v1.2.0
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/kshvakov/clickhouse v1.3.11
+	github.com/lib/pq v1.2.0
+	github.com/mattn/go-colorable v0.1.4
+	github.com/mattn/go-isatty v0.0.10 // indirect
+	github.com/mattn/go-sqlite3 v1.11.0
+	github.com/mholt/caddy v0.0.0-20180807230124-d3b731e9255b // indirect
+	github.com/miekg/dns v1.1.8
+	github.com/mitchellh/go-homedir v1.1.0
+	github.com/opentracing/opentracing-go v1.1.0 // indirect
+	github.com/philhofer/fwd v1.0.0 // indirect
+	github.com/pkg/errors v0.8.1
+	github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35 // indirect
+	github.com/prometheus/client_golang v1.0.0
+	github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 // indirect
+	github.com/prometheus/common v0.7.0 // indirect
+	github.com/prometheus/procfs v0.0.5 // indirect
+	github.com/rifflock/lfshook v0.0.0-20180920164130-b9218ef580f5
+	github.com/sirupsen/logrus v1.4.2
+	github.com/stretchr/testify v1.3.0
+	github.com/tinylib/msgp v1.1.0 // indirect
+	github.com/xo/dburl v0.0.0-20191005012637-293c3298d6c0
+	golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc
+	golang.org/x/net v0.0.0-20191007182048-72f939374954
+	golang.org/x/sync v0.0.0-20190423024810-112230192c58
+	golang.org/x/sys v0.0.0-20191008105621-543471e840be
+	golang.org/x/text v0.3.2 // indirect
+	google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd // indirect
+	google.golang.org/grpc v1.24.0 // indirect
+	gopkg.in/coreos/go-oidc.v2 v2.1.0
+	gopkg.in/square/go-jose.v2 v2.4.0 // indirect
+	gopkg.in/urfave/cli.v2 v2.0.0-20180128181224-d604b6ffeee8
+	gopkg.in/yaml.v2 v2.2.4 // indirect
+	zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7
+)
+
+// ../../go/pkg/mod/github.com/coredns/coredns@v1.2.0/plugin/metrics/metrics.go:40:49: too many arguments in call to prometheus.NewProcessCollector
+// have (int, string)
+// want (prometheus.ProcessCollectorOpts)
+replace github.com/prometheus/client_golang => github.com/prometheus/client_golang v0.9.0-pre1
@@ -0,0 +1,210 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DATA-DOG/go-sqlmock v1.3.3 h1:CWUqKXe0s8A2z6qCgkP4Kru7wC11YoAnoupUKFDnH08=
+github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/aws/aws-sdk-go v1.25.8 h1:n7I+HUUXjun2CsX7JK+1hpRIkZrlKhd3nayeb+Xmavs=
+github.com/aws/aws-sdk-go v1.25.8/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/bkaradzic/go-lz4 v1.0.0 h1:RXc4wYsyz985CkXXeX04y4VnZFGG8Rd43pRaHsOXAKk=
+github.com/bkaradzic/go-lz4 v1.0.0/go.mod h1:0YdlkowM3VswSROI7qDxhRvJ3sLhlFrRRwjwegp5jy4=
+github.com/certifi/gocertifi v0.0.0-20180118203423-deb3ae2ef261 h1:6/yVvBsKeAw05IUj4AzvrxaCnDjN4nUqKjW9+w5wixg=
+github.com/certifi/gocertifi v0.0.0-20180118203423-deb3ae2ef261/go.mod h1:GJKEexRPVJrBSOjoqN5VNOIKJ5Q3RViH6eu3puDRwx4=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cloudflare/brotli-go v0.0.0-20191101163834-d34379f7ff93 h1:QrGfkZDnMxcWHaYDdB7CmqS9i26OAnUj/xcus/abYkY=
+github.com/cloudflare/brotli-go v0.0.0-20191101163834-d34379f7ff93/go.mod h1:QiTe66jFdP7cUKMCCf/WrvDyYdtdmdZfVcdoLbzaKVY=
+github.com/cloudflare/golibs v0.0.0-20170913112048-333127dbecfc h1:Dvk3ySBsOm5EviLx6VCyILnafPcQinXGP5jbTdHUJgE=
+github.com/cloudflare/golibs v0.0.0-20170913112048-333127dbecfc/go.mod h1:HlgKKR8V5a1wroIDDIz3/A+T+9Janfq+7n1P5sEFdi0=
+github.com/cloudflare/golz4 v0.0.0-20150217214814-ef862a3cdc58 h1:F1EaeKL/ta07PY/k9Os/UFtwERei2/XzGemhpGnBKNg=
+github.com/cloudflare/golz4 v0.0.0-20150217214814-ef862a3cdc58/go.mod h1:EOBUe0h4xcZ5GoxqC5SDxFQ8gwyZPKQoEzownBlhI80=
+github.com/coredns/coredns v1.2.0 h1:YEI38K2BJYzL/SxO2tZFD727T/C68DqVWkBQjT0sWPU=
+github.com/coredns/coredns v1.2.0/go.mod h1:zASH/MVDgR6XZTbxvOnsZfffS+31vg6Ackf/wo1+AM0=
+github.com/coreos/go-oidc v0.0.0-20171002155002-a93f71fdfe73 h1:7CNPV0LWRCa1FNmqg700pbXhzvmoaXKyfxWRkjRym7Q=
+github.com/coreos/go-oidc v0.0.0-20171002155002-a93f71fdfe73/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc=
+github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a h1:W8b4lQ4tFF21aspRGoBuCNV6V2fFJBF+pm1J6OY8Lys=
+github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/denisenkom/go-mssqldb v0.0.0-20191001013358-cfbb681360f0 h1:epsH3lb7KVbXHYk7LYGN5EiE0MxcevHU85CKITJ0wUY=
+github.com/denisenkom/go-mssqldb v0.0.0-20191001013358-cfbb681360f0/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
+github.com/equinox-io/equinox v1.2.0 h1:bBS7Ou+Y7Jwgmy8TWSYxEh85WctuFn7FPlgbUzX4DBA=
+github.com/equinox-io/equinox v1.2.0/go.mod h1:6s3HJB0PYUNgs0mxmI8fHdfVl3TQ25ieA/PVfr+eyVo=
+github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 h1:0JZ+dUmQeA8IIVUMzysrX4/AKuQwWhV2dYQuPZdvdSQ=
+github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
+github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9 h1:wWke/RUCl7VRjQhwPlR/v0glZXNYzBHdNUzf/Am2Nmg=
+github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9/go.mod h1:uPmAp6Sws4L7+Q/OokbWDAK1ibXYhB3PXFP1kol5hPg=
+github.com/facebookgo/grace v0.0.0-20180706040059-75cf19382434 h1:mOp33BLbcbJ8fvTAmZacbBiOASfxN+MLcLxymZCIrGE=
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+golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191008105621-543471e840be h1:QAcqgptGM8IQBC9K/RC4o+O9YmqEm0diQn9QmZw/0mU=
+golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd h1:84VQPzup3IpKLxuIAZjHMhVjJ8fZ4/i3yUnj3k6fUdw=
+google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.24.0 h1:vb/1TCsVn3DcJlQ0Gs1yB1pKI6Do2/QNwxdKqmc/b0s=
+google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/coreos/go-oidc.v2 v2.1.0 h1:E8PjVFdj/SLDKB0hvb70KTbMbYVHjqztiQdSkIg8E+I=
+gopkg.in/coreos/go-oidc.v2 v2.1.0/go.mod h1:fYaTe2FS96wZZwR17YTDHwG+Mw6fmyqJNxN2eNCGPCI=
+gopkg.in/square/go-jose.v2 v2.4.0 h1:0kXPskUMGAXXWJlP05ktEMOV0vmzFQUWw6d+aZJQU8A=
+gopkg.in/square/go-jose.v2 v2.4.0/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
+gopkg.in/urfave/cli.v2 v2.0.0-20180128181224-d604b6ffeee8 h1:/pLAskKF+d5SawboKd8GB8ew4ClHDbt2c3K9EBFeRGU=
+gopkg.in/urfave/cli.v2 v2.0.0-20180128181224-d604b6ffeee8/go.mod h1:cKXr3E0k4aosgycml1b5z33BVV6hai1Kh7uDgFOkbcs=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7 h1:CZoOFlTPbKfAShKYrMuUfYbnXexFT1rYRUX1SPnrdE4=
+zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7/go.mod h1:TMGa8HWGJkXiq4nHe9Zu/JgRF5oUtg4XizFC+Vexbec=
@@ -3,6 +3,7 @@ package h2mux
 import (
 	"sync"

+	"github.com/prometheus/client_golang/prometheus"
 	"golang.org/x/net/http2"
 )

@@ -22,13 +23,16 @@ type activeStreamMap struct {
 	// ignoreNewStreams is true when the connection is being shut down. New streams
 	// cannot be registered.
 	ignoreNewStreams bool
+	// activeStreams is a gauge shared by all muxers of this process to expose the total number of active streams
+	activeStreams prometheus.Gauge
 }

-func newActiveStreamMap(useClientStreamNumbers bool) *activeStreamMap {
+func newActiveStreamMap(useClientStreamNumbers bool, activeStreams prometheus.Gauge) *activeStreamMap {
 	m := &activeStreamMap{
-		streams:      make(map[uint32]*MuxedStream),
-		streamsEmpty: make(chan struct{}),
-		nextStreamID: 1,
+		streams:       make(map[uint32]*MuxedStream),
+		streamsEmpty:  make(chan struct{}),
+		nextStreamID:  1,
+		activeStreams: activeStreams,
 	}
 	// Client initiated stream uses odd stream ID, server initiated stream uses even stream ID
 	if !useClientStreamNumbers {
@@ -63,6 +67,7 @@ func (m *activeStreamMap) Set(newStream *MuxedStream) bool {
 		return false
 	}
 	m.streams[newStream.streamID] = newStream
+	m.activeStreams.Inc()
 	return true
 }

@@ -70,7 +75,10 @@ func (m *activeStreamMap) Set(newStream *MuxedStream) bool {
 func (m *activeStreamMap) Delete(streamID uint32) {
 	m.Lock()
 	defer m.Unlock()
-	delete(m.streams, streamID)
+	if _, ok := m.streams[streamID]; ok {
+		delete(m.streams, streamID)
+		m.activeStreams.Dec()
+	}
 	if len(m.streams) == 0 && m.streamsEmpty != nil {
 		close(m.streamsEmpty)
 		m.streamsEmpty = nil
@@ -7,6 +7,7 @@ import (
 	"sync"
 	"time"

+	"github.com/prometheus/client_golang/prometheus"
 	log "github.com/sirupsen/logrus"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/hpack"
@@ -19,7 +20,7 @@ const (
 	maxWindowSize            uint32        = (1 << 31) - 1 // 2^31-1 = 2147483647, max window size in http2 spec
 	defaultTimeout           time.Duration = 5 * time.Second
 	defaultRetries           uint64        = 5
-	defaultWriteBufferMaxLen int           = 1024 * 1024 * 512 // 500mb
+	defaultWriteBufferMaxLen int           = 1024 * 1024 // 1mb

 	SettingMuxerMagic http2.SettingID = 0x42db
 	MuxerMagicOrigin  uint32          = 0xa2e43c8b
@@ -107,6 +108,7 @@ func Handshake(
 	w io.WriteCloser,
 	r io.ReadCloser,
 	config MuxerConfig,
+	activeStreamsMetrics prometheus.Gauge,
 ) (*Muxer, error) {
 	// Set default config values
 	if config.Timeout == 0 {
@@ -130,7 +132,7 @@ func Handshake(
 		newStreamChan: make(chan MuxedStreamRequest),
 		abortChan:     make(chan struct{}),
 		readyList:     NewReadyList(),
-		streams:       newActiveStreamMap(config.IsClient),
+		streams:       newActiveStreamMap(config.IsClient, activeStreamsMetrics),
 	}

 	m.f.ReadMetaHeaders = hpack.NewDecoder(4096, func(hpack.HeaderField) {})
@@ -388,7 +390,7 @@ func isConnectionClosedError(err error) bool {
 // Called by proxy server and tunnel
 func (m *Muxer) OpenStream(ctx context.Context, headers []Header, body io.Reader) (*MuxedStream, error) {
 	stream := m.NewStream(headers)
-	if err := m.MakeMuxedStreamRequest(ctx, MuxedStreamRequest{stream, body}); err != nil {
+	if err := m.MakeMuxedStreamRequest(ctx, NewMuxedStreamRequest(stream, body)); err != nil {
 		return nil, err
 	}
 	if err := m.AwaitResponseHeaders(ctx, stream); err != nil {
@@ -397,10 +399,9 @@ func (m *Muxer) OpenStream(ctx context.Context, headers []Header, body io.Reader
 	return stream, nil
 }

-
 func (m *Muxer) OpenRPCStream(ctx context.Context) (*MuxedStream, error) {
 	stream := m.NewStream(RPCHeaders())
-	if err := m.MakeMuxedStreamRequest(ctx, MuxedStreamRequest{stream: stream, body: nil}); err != nil {
+	if err := m.MakeMuxedStreamRequest(ctx, NewMuxedStreamRequest(stream, nil)); err != nil {
 		return nil, err
 	}
 	if err := m.AwaitResponseHeaders(ctx, stream); err != nil {
@@ -425,6 +426,13 @@ func (m *Muxer) MakeMuxedStreamRequest(ctx context.Context, request MuxedStreamR
 	}
 }

+func (m *Muxer) CloseStreamRead(stream *MuxedStream) {
+	stream.CloseRead()
+	if stream.WriteClosed() {
+		m.streams.Delete(stream.streamID)
+	}
+}
+
 func (m *Muxer) AwaitResponseHeaders(ctx context.Context, stream *MuxedStream) error {
 	select {
 	case <-ctx.Done():
@@ -43,7 +43,7 @@ type DefaultMuxerPair struct {
 	doneC           chan struct{}
 }

-func NewDefaultMuxerPair(t assert.TestingT, f MuxedStreamFunc) *DefaultMuxerPair {
+func NewDefaultMuxerPair(t assert.TestingT, testName string, f MuxedStreamFunc) *DefaultMuxerPair {
 	origin, edge := net.Pipe()
 	p := &DefaultMuxerPair{
 		OriginMuxConfig: MuxerConfig{
@@ -69,11 +69,11 @@ func NewDefaultMuxerPair(t assert.TestingT, f MuxedStreamFunc) *DefaultMuxerPair
 		EdgeConn: edge,
 		doneC:    make(chan struct{}),
 	}
-	assert.NoError(t, p.Handshake())
+	assert.NoError(t, p.Handshake(testName))
 	return p
 }

-func NewCompressedMuxerPair(t assert.TestingT, quality CompressionSetting, f MuxedStreamFunc) *DefaultMuxerPair {
+func NewCompressedMuxerPair(t assert.TestingT, testName string, quality CompressionSetting, f MuxedStreamFunc) *DefaultMuxerPair {
 	origin, edge := net.Pipe()
 	p := &DefaultMuxerPair{
 		OriginMuxConfig: MuxerConfig{
@@ -95,20 +95,20 @@ func NewCompressedMuxerPair(t assert.TestingT, quality CompressionSetting, f Mux
 		EdgeConn: edge,
 		doneC:    make(chan struct{}),
 	}
-	assert.NoError(t, p.Handshake())
+	assert.NoError(t, p.Handshake(testName))
 	return p
 }

-func (p *DefaultMuxerPair) Handshake() error {
+func (p *DefaultMuxerPair) Handshake(testName string) error {
 	ctx, cancel := context.WithTimeout(context.Background(), testHandshakeTimeout)
 	defer cancel()
 	errGroup, _ := errgroup.WithContext(ctx)
 	errGroup.Go(func() (err error) {
-		p.EdgeMux, err = Handshake(p.EdgeConn, p.EdgeConn, p.EdgeMuxConfig)
+		p.EdgeMux, err = Handshake(p.EdgeConn, p.EdgeConn, p.EdgeMuxConfig, NewActiveStreamsMetrics(testName, "edge"))
 		return errors.Wrap(err, "edge handshake failure")
 	})
 	errGroup.Go(func() (err error) {
-		p.OriginMux, err = Handshake(p.OriginConn, p.OriginConn, p.OriginMuxConfig)
+		p.OriginMux, err = Handshake(p.OriginConn, p.OriginConn, p.OriginMuxConfig, NewActiveStreamsMetrics(testName, "origin"))
 		return errors.Wrap(err, "origin handshake failure")
 	})

@@ -161,7 +161,7 @@ func TestHandshake(t *testing.T) {
 	f := func(stream *MuxedStream) error {
 		return nil
 	}
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	AssertIfPipeReadable(t, muxPair.OriginConn)
 	AssertIfPipeReadable(t, muxPair.EdgeConn)
 }
@@ -191,7 +191,7 @@ func TestSingleStream(t *testing.T) {
 		}
 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	stream, err := muxPair.OpenEdgeMuxStream(
@@ -262,7 +262,7 @@ func TestSingleStreamLargeResponseBody(t *testing.T) {

 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	stream, err := muxPair.OpenEdgeMuxStream(
@@ -309,7 +309,7 @@ func TestMultipleStreams(t *testing.T) {
 		log.Debugf("Wrote body for stream %s", stream.Headers[0].Value)
 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	maxStreams := 64
@@ -402,7 +402,7 @@ func TestMultipleStreamsFlowControl(t *testing.T) {
 		}
 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	errGroup, _ := errgroup.WithContext(context.Background())
@@ -461,7 +461,7 @@ func TestGracefulShutdown(t *testing.T) {
 		log.Debugf("Handler ends")
 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	stream, err := muxPair.OpenEdgeMuxStream(
@@ -516,7 +516,7 @@ func TestUnexpectedShutdown(t *testing.T) {
 		}
 		return nil
 	})
-	muxPair := NewDefaultMuxerPair(t, f)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), f)
 	muxPair.Serve(t)

 	stream, err := muxPair.OpenEdgeMuxStream(
@@ -564,7 +564,7 @@ func EchoHandler(stream *MuxedStream) error {

 func TestOpenAfterDisconnect(t *testing.T) {
 	for i := 0; i < 3; i++ {
-		muxPair := NewDefaultMuxerPair(t, EchoHandler)
+		muxPair := NewDefaultMuxerPair(t, fmt.Sprintf("%s_%d", t.Name(), i), EchoHandler)
 		muxPair.Serve(t)

 		switch i {
@@ -591,7 +591,7 @@ func TestOpenAfterDisconnect(t *testing.T) {
 }

 func TestHPACK(t *testing.T) {
-	muxPair := NewDefaultMuxerPair(t, EchoHandler)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), EchoHandler)
 	muxPair.Serve(t)

 	stream, err := muxPair.OpenEdgeMuxStream(
@@ -724,7 +724,7 @@ func TestMultipleStreamsWithDictionaries(t *testing.T) {

 			return nil
 		})
-		muxPair := NewCompressedMuxerPair(t, q, f)
+		muxPair := NewCompressedMuxerPair(t, fmt.Sprintf("%s_%d", t.Name(), q), q, f)
 		muxPair.Serve(t)

 		var wg sync.WaitGroup
@@ -918,7 +918,7 @@ func TestSampleSiteWithDictionaries(t *testing.T) {
 	assert.NoError(t, err)

 	for q := CompressionNone; q <= CompressionMax; q++ {
-		muxPair := NewCompressedMuxerPair(t, q, sampleSiteHandler(files))
+		muxPair := NewCompressedMuxerPair(t, fmt.Sprintf("%s_%d", t.Name(), q), q, sampleSiteHandler(files))
 		muxPair.Serve(t)

 		var wg sync.WaitGroup
@@ -957,7 +957,7 @@ func TestLongSiteWithDictionaries(t *testing.T) {
 	files, err := loadSampleFiles(paths)
 	assert.NoError(t, err)
 	for q := CompressionNone; q <= CompressionMedium; q++ {
-		muxPair := NewCompressedMuxerPair(t, q, sampleSiteHandler(files))
+		muxPair := NewCompressedMuxerPair(t, fmt.Sprintf("%s_%d", t.Name(), q), q, sampleSiteHandler(files))
 		muxPair.Serve(t)

 		rand.Seed(time.Now().Unix())
@@ -998,7 +998,7 @@ func BenchmarkOpenStream(b *testing.B) {
 			})
 			return nil
 		})
-		muxPair := NewDefaultMuxerPair(b, f)
+		muxPair := NewDefaultMuxerPair(b, fmt.Sprintf("%s_%d", b.Name(), i), f)
 		muxPair.Serve(b)
 		b.StartTimer()
 		openStreams(b, muxPair, streams)
@@ -137,9 +137,10 @@ func (s *MuxedStream) Write(p []byte) (int, error) {
 		// If the buffer is full, block till there is more room.
 		// Use a loop to recheck the buffer size after the lock is reacquired.
 		for s.writeBufferMaxLen <= s.writeBuffer.Len() {
-			s.writeLock.Unlock()
-			<-s.writeBufferHasSpace
-			s.writeLock.Lock()
+			s.awaitWriteBufferHasSpace()
+			if s.writeEOF {
+				return totalWritten, io.EOF
+			}
 		}
 		amountToWrite := len(p) - totalWritten
 		spaceAvailable := s.writeBufferMaxLen - s.writeBuffer.Len()
@@ -188,10 +189,19 @@ func (s *MuxedStream) CloseWrite() error {
 	if c, ok := s.writeBuffer.(io.Closer); ok {
 		c.Close()
 	}
+	// Allow MuxedStream::Write() to terminate its loop with err=io.EOF, if needed
+	s.notifyWriteBufferHasSpace()
+	// We need to send something over the wire, even if it's an END_STREAM with no data
 	s.writeNotify()
 	return nil
 }

+func (s *MuxedStream) WriteClosed() bool {
+	s.writeLock.Lock()
+	defer s.writeLock.Unlock()
+	return s.writeEOF
+}
+
 func (s *MuxedStream) WriteHeaders(headers []Header) error {
 	s.writeLock.Lock()
 	defer s.writeLock.Unlock()
@@ -232,6 +242,23 @@ func (s *MuxedStream) TunnelHostname() TunnelHostname {
 	return s.tunnelHostname
 }

+// Block until a value is sent on writeBufferHasSpace.
+// Must be called while holding writeLock
+func (s *MuxedStream) awaitWriteBufferHasSpace() {
+	s.writeLock.Unlock()
+	<-s.writeBufferHasSpace
+	s.writeLock.Lock()
+}
+
+// Send a value on writeBufferHasSpace without blocking.
+// Must be called while holding writeLock
+func (s *MuxedStream) notifyWriteBufferHasSpace() {
+	select {
+	case s.writeBufferHasSpace <- struct{}{}:
+	default:
+	}
+}
+
 func (s *MuxedStream) getReceiveWindow() uint32 {
 	s.writeLock.Lock()
 	defer s.writeLock.Unlock()
@@ -351,17 +378,13 @@ func (s *MuxedStream) getChunk() *streamChunk {
 		sendData:     !s.sentEOF,
 		eof:          s.writeEOF && uint32(s.writeBuffer.Len()) <= s.sendWindow,
 	}
-
 	// Copy at most s.sendWindow bytes, adjust the sendWindow accordingly
 	writeLen, _ := io.CopyN(&chunk.buffer, s.writeBuffer, int64(s.sendWindow))
 	s.sendWindow -= uint32(writeLen)

-	// Non-blocking channel send. This will allow MuxedStream::Write() to continue, if needed
+	// Allow MuxedStream::Write() to continue, if needed
 	if s.writeBuffer.Len() < s.writeBufferMaxLen {
-		select {
-		case s.writeBufferHasSpace <- struct{}{}:
-		default:
-		}
+		s.notifyWriteBufferHasSpace()
 	}

 	// When we write the chunk, we'll write the WINDOW_UPDATE frame if needed
@@ -5,6 +5,7 @@ import (
 	"time"

 	"github.com/golang-collections/collections/queue"
+	"github.com/prometheus/client_golang/prometheus"

 	log "github.com/sirupsen/logrus"
 )
@@ -299,3 +300,14 @@ func (r *rate) get() (curr, min, max uint64) {
 	defer r.lock.RUnlock()
 	return r.curr, r.min, r.max
 }
+
+func NewActiveStreamsMetrics(namespace, subsystem string) prometheus.Gauge {
+	activeStreams := prometheus.NewGauge(prometheus.GaugeOpts{
+		Namespace: namespace,
+		Subsystem: subsystem,
+		Name:      "active_streams",
+		Help:      "Number of active streams created by all muxers.",
+	})
+	prometheus.MustRegister(activeStreams)
+	return activeStreams
+}
@@ -87,23 +87,28 @@ func (r *MuxReader) run(parentLogger *log.Entry) error {
 	for {
 		frame, err := r.f.ReadFrame()
 		if err != nil {
+			errLogger := logger.WithError(err)
+			if errorDetail := r.f.ErrorDetail(); errorDetail != nil {
+				errLogger = errLogger.WithField("errorDetail", errorDetail)
+			}
 			switch e := err.(type) {
 			case http2.StreamError:
-				logger.WithError(err).Warn("stream error")
+				errLogger.Warn("stream error")
 				r.streamError(e.StreamID, e.Code)
 			case http2.ConnectionError:
-				logger.WithError(err).Warn("connection error")
+				errLogger.Warn("connection error")
 				return r.connectionError(err)
 			default:
 				if isConnectionClosedError(err) {
 					if r.streams.Len() == 0 {
+						// don't log the error here -- that would just be extra noise
 						logger.Debug("shutting down")
 						return nil
 					}
-					logger.Warn("connection closed unexpectedly")
+					errLogger.Warn("connection closed unexpectedly")
 					return err
 				} else {
-					logger.WithError(err).Warn("frame read error")
+					errLogger.Warn("frame read error")
 					return r.connectionError(err)
 				}
 			}
@@ -120,6 +125,9 @@ func (r *MuxReader) run(parentLogger *log.Entry) error {
 			if streamID == 0 {
 				return ErrInvalidStream
 			}
+			if stream, ok := r.streams.Get(streamID); ok {
+				stream.Close()
+			}
 			r.streams.Delete(streamID)
 		case *http2.PingFrame:
 			r.receivePingData(f)
@@ -59,7 +59,7 @@ func assertOpenStreamSucceed(t *testing.T, stream *MuxedStream, err error) {

 func TestMissingHeaders(t *testing.T) {
 	originHandler := &mockOriginStreamHandler{}
-	muxPair := NewDefaultMuxerPair(t, originHandler.ServeStream)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), originHandler.ServeStream)
 	muxPair.Serve(t)

 	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
@@ -83,7 +83,7 @@ func TestMissingHeaders(t *testing.T) {

 func TestReceiveHeaderData(t *testing.T) {
 	originHandler := &mockOriginStreamHandler{}
-	muxPair := NewDefaultMuxerPair(t, originHandler.ServeStream)
+	muxPair := NewDefaultMuxerPair(t, t.Name(), originHandler.ServeStream)
 	muxPair.Serve(t)

 	reqHeaders := []Header{
@@ -54,6 +54,13 @@ type MuxedStreamRequest struct {
 	body   io.Reader
 }

+func NewMuxedStreamRequest(stream *MuxedStream, body io.Reader) MuxedStreamRequest {
+	return MuxedStreamRequest{
+		stream: stream,
+		body:   body,
+	}
+}
+
 func (r *MuxedStreamRequest) flushBody() {
 	io.Copy(r.stream, r.body)
 	r.stream.CloseWrite()
@@ -103,15 +103,16 @@ func StartHelloWorldServer(logger *logrus.Logger, listener net.Listener, shutdow
 		WriteBufferSize: 1024,
 	}

-	httpServer := &http.Server{Addr: listener.Addr().String(), Handler: nil}
+	muxer := http.NewServeMux()
+	muxer.HandleFunc("/uptime", uptimeHandler(time.Now()))
+	muxer.HandleFunc("/ws", websocketHandler(logger, upgrader))
+	muxer.HandleFunc("/", rootHandler(serverName))
+	httpServer := &http.Server{Addr: listener.Addr().String(), Handler: muxer}
 	go func() {
 		<-shutdownC
 		httpServer.Close()
 	}()

-	http.HandleFunc("/uptime", uptimeHandler(time.Now()))
-	http.HandleFunc("/ws", websocketHandler(logger, upgrader))
-	http.HandleFunc("/", rootHandler(serverName))
 	err := httpServer.Serve(listener)
 	return err
 }
@@ -2,6 +2,7 @@ package metrics

 import (
 	"context"
+	"fmt"
 	"net"
 	"net/http"
 	_ "net/http/pprof"
@@ -33,6 +34,9 @@ func ServeMetrics(l net.Listener, shutdownC <-chan struct{}, logger *logrus.Logg
 	}

 	http.Handle("/metrics", promhttp.Handler())
+	http.Handle("/healthcheck", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "OK\n")
+	}))

 	wg.Add(1)
 	go func() {
@@ -9,6 +9,12 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 )

+const (
+	metricsNamespace = "cloudflared"
+	tunnelSubsystem  = "tunnel"
+	muxerSubsystem   = "muxer"
+)
+
 type muxerMetrics struct {
 	rtt              *prometheus.GaugeVec
 	rttMin           *prometheus.GaugeVec
@@ -32,6 +38,7 @@ type muxerMetrics struct {

 type TunnelMetrics struct {
 	haConnections     prometheus.Gauge
+	activeStreams     prometheus.Gauge
 	totalRequests     prometheus.Counter
 	requestsPerTunnel *prometheus.CounterVec
 	// concurrentRequestsLock is a mutex for concurrentRequests and maxConcurrentRequests
@@ -63,8 +70,10 @@ type TunnelMetrics struct {
 func newMuxerMetrics() *muxerMetrics {
 	rtt := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "rtt",
-			Help: "Round-trip time in millisecond",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt",
+			Help:      "Round-trip time in millisecond",
 		},
 		[]string{"connection_id"},
 	)
@@ -72,8 +81,10 @@ func newMuxerMetrics() *muxerMetrics {

 	rttMin := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "rtt_min",
-			Help: "Shortest round-trip time in millisecond",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt_min",
+			Help:      "Shortest round-trip time in millisecond",
 		},
 		[]string{"connection_id"},
 	)
@@ -81,8 +92,10 @@ func newMuxerMetrics() *muxerMetrics {

 	rttMax := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "rtt_max",
-			Help: "Longest round-trip time in millisecond",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt_max",
+			Help:      "Longest round-trip time in millisecond",
 		},
 		[]string{"connection_id"},
 	)
@@ -90,8 +103,10 @@ func newMuxerMetrics() *muxerMetrics {

 	receiveWindowAve := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "receive_window_ave",
-			Help: "Average receive window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_ave",
+			Help:      "Average receive window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -99,8 +114,10 @@ func newMuxerMetrics() *muxerMetrics {

 	sendWindowAve := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "send_window_ave",
-			Help: "Average send window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_ave",
+			Help:      "Average send window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -108,8 +125,10 @@ func newMuxerMetrics() *muxerMetrics {

 	receiveWindowMin := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "receive_window_min",
-			Help: "Smallest receive window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_min",
+			Help:      "Smallest receive window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -117,8 +136,10 @@ func newMuxerMetrics() *muxerMetrics {

 	receiveWindowMax := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "receive_window_max",
-			Help: "Largest receive window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_max",
+			Help:      "Largest receive window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -126,8 +147,10 @@ func newMuxerMetrics() *muxerMetrics {

 	sendWindowMin := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "send_window_min",
-			Help: "Smallest send window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_min",
+			Help:      "Smallest send window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -135,8 +158,10 @@ func newMuxerMetrics() *muxerMetrics {

 	sendWindowMax := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "send_window_max",
-			Help: "Largest send window size in bytes",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_max",
+			Help:      "Largest send window size in bytes",
 		},
 		[]string{"connection_id"},
 	)
@@ -144,8 +169,10 @@ func newMuxerMetrics() *muxerMetrics {

 	inBoundRateCurr := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "inbound_bytes_per_sec_curr",
-			Help: "Current inbounding bytes per second, 0 if there is no incoming connection",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_curr",
+			Help:      "Current inbounding bytes per second, 0 if there is no incoming connection",
 		},
 		[]string{"connection_id"},
 	)
@@ -153,8 +180,10 @@ func newMuxerMetrics() *muxerMetrics {

 	inBoundRateMin := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "inbound_bytes_per_sec_min",
-			Help: "Minimum non-zero inbounding bytes per second",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_min",
+			Help:      "Minimum non-zero inbounding bytes per second",
 		},
 		[]string{"connection_id"},
 	)
@@ -162,8 +191,10 @@ func newMuxerMetrics() *muxerMetrics {

 	inBoundRateMax := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "inbound_bytes_per_sec_max",
-			Help: "Maximum inbounding bytes per second",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_max",
+			Help:      "Maximum inbounding bytes per second",
 		},
 		[]string{"connection_id"},
 	)
@@ -171,8 +202,10 @@ func newMuxerMetrics() *muxerMetrics {

 	outBoundRateCurr := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "outbound_bytes_per_sec_curr",
-			Help: "Current outbounding bytes per second, 0 if there is no outgoing traffic",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_curr",
+			Help:      "Current outbounding bytes per second, 0 if there is no outgoing traffic",
 		},
 		[]string{"connection_id"},
 	)
@@ -180,8 +213,10 @@ func newMuxerMetrics() *muxerMetrics {

 	outBoundRateMin := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "outbound_bytes_per_sec_min",
-			Help: "Minimum non-zero outbounding bytes per second",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_min",
+			Help:      "Minimum non-zero outbounding bytes per second",
 		},
 		[]string{"connection_id"},
 	)
@@ -189,8 +224,10 @@ func newMuxerMetrics() *muxerMetrics {

 	outBoundRateMax := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "outbound_bytes_per_sec_max",
-			Help: "Maximum outbounding bytes per second",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_max",
+			Help:      "Maximum outbounding bytes per second",
 		},
 		[]string{"connection_id"},
 	)
@@ -198,8 +235,10 @@ func newMuxerMetrics() *muxerMetrics {

 	compBytesBefore := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "comp_bytes_before",
-			Help: "Bytes sent via cross-stream compression, pre compression",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_bytes_before",
+			Help:      "Bytes sent via cross-stream compression, pre compression",
 		},
 		[]string{"connection_id"},
 	)
@@ -207,8 +246,10 @@ func newMuxerMetrics() *muxerMetrics {

 	compBytesAfter := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "comp_bytes_after",
-			Help: "Bytes sent via cross-stream compression, post compression",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_bytes_after",
+			Help:      "Bytes sent via cross-stream compression, post compression",
 		},
 		[]string{"connection_id"},
 	)
@@ -216,8 +257,10 @@ func newMuxerMetrics() *muxerMetrics {

 	compRateAve := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "comp_rate_ave",
-			Help: "Average outbound cross-stream compression ratio",
+			Namespace: metricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_rate_ave",
+			Help:      "Average outbound cross-stream compression ratio",
 		},
 		[]string{"connection_id"},
 	)
@@ -274,22 +317,30 @@ func convertRTTMilliSec(t time.Duration) float64 {
 func NewTunnelMetrics() *TunnelMetrics {
 	haConnections := prometheus.NewGauge(
 		prometheus.GaugeOpts{
-			Name: "ha_connections",
-			Help: "Number of active ha connections",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "ha_connections",
+			Help:      "Number of active ha connections",
 		})
 	prometheus.MustRegister(haConnections)

+	activeStreams := h2mux.NewActiveStreamsMetrics(metricsNamespace, tunnelSubsystem)
+
 	totalRequests := prometheus.NewCounter(
 		prometheus.CounterOpts{
-			Name: "total_requests",
-			Help: "Amount of requests proxied through all the tunnels",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "total_requests",
+			Help:      "Amount of requests proxied through all the tunnels",
 		})
 	prometheus.MustRegister(totalRequests)

 	requestsPerTunnel := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "requests_per_tunnel",
-			Help: "Amount of requests proxied through each tunnel",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "requests_per_tunnel",
+			Help:      "Amount of requests proxied through each tunnel",
 		},
 		[]string{"connection_id"},
 	)
@@ -297,8 +348,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	concurrentRequestsPerTunnel := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "concurrent_requests_per_tunnel",
-			Help: "Concurrent requests proxied through each tunnel",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "concurrent_requests_per_tunnel",
+			Help:      "Concurrent requests proxied through each tunnel",
 		},
 		[]string{"connection_id"},
 	)
@@ -306,8 +359,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	maxConcurrentRequestsPerTunnel := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "max_concurrent_requests_per_tunnel",
-			Help: "Largest number of concurrent requests proxied through each tunnel so far",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "max_concurrent_requests_per_tunnel",
+			Help:      "Largest number of concurrent requests proxied through each tunnel so far",
 		},
 		[]string{"connection_id"},
 	)
@@ -315,15 +370,19 @@ func NewTunnelMetrics() *TunnelMetrics {

 	timerRetries := prometheus.NewGauge(
 		prometheus.GaugeOpts{
-			Name: "timer_retries",
-			Help: "Unacknowledged heart beats count",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "timer_retries",
+			Help:      "Unacknowledged heart beats count",
 		})
 	prometheus.MustRegister(timerRetries)

 	responseByCode := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "response_by_code",
-			Help: "Count of responses by HTTP status code",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "response_by_code",
+			Help:      "Count of responses by HTTP status code",
 		},
 		[]string{"status_code"},
 	)
@@ -331,8 +390,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	responseCodePerTunnel := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "response_code_per_tunnel",
-			Help: "Count of responses by HTTP status code fore each tunnel",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "response_code_per_tunnel",
+			Help:      "Count of responses by HTTP status code fore each tunnel",
 		},
 		[]string{"connection_id", "status_code"},
 	)
@@ -340,8 +401,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	serverLocations := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
-			Name: "server_locations",
-			Help: "Where each tunnel is connected to. 1 means current location, 0 means previous locations.",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "server_locations",
+			Help:      "Where each tunnel is connected to. 1 means current location, 0 means previous locations.",
 		},
 		[]string{"connection_id", "location"},
 	)
@@ -349,8 +412,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	rpcFail := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "tunnel_rpc_fail",
-			Help: "Count of RPC connection errors by type",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "tunnel_rpc_fail",
+			Help:      "Count of RPC connection errors by type",
 		},
 		[]string{"error"},
 	)
@@ -358,8 +423,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	registerFail := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "tunnel_register_fail",
-			Help: "Count of tunnel registration errors by type",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "tunnel_register_fail",
+			Help:      "Count of tunnel registration errors by type",
 		},
 		[]string{"error"},
 	)
@@ -367,8 +434,10 @@ func NewTunnelMetrics() *TunnelMetrics {

 	userHostnamesCounts := prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name: "user_hostnames_counts",
-			Help: "Which user hostnames cloudflared is serving",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "user_hostnames_counts",
+			Help:      "Which user hostnames cloudflared is serving",
 		},
 		[]string{"userHostname"},
 	)
@@ -376,13 +445,16 @@ func NewTunnelMetrics() *TunnelMetrics {

 	registerSuccess := prometheus.NewCounter(
 		prometheus.CounterOpts{
-			Name: "tunnel_register_success",
-			Help: "Count of successful tunnel registrations",
+			Namespace: metricsNamespace,
+			Subsystem: tunnelSubsystem,
+			Name:      "tunnel_register_success",
+			Help:      "Count of successful tunnel registrations",
 		})
 	prometheus.MustRegister(registerSuccess)

 	return &TunnelMetrics{
 		haConnections:                  haConnections,
+		activeStreams:                  activeStreams,
 		totalRequests:                  totalRequests,
 		requestsPerTunnel:              requestsPerTunnel,
 		concurrentRequestsPerTunnel:    concurrentRequestsPerTunnel,
@@ -23,7 +23,6 @@ import (
 	"github.com/cloudflare/cloudflared/validation"
 	"github.com/cloudflare/cloudflared/websocket"

-	raven "github.com/getsentry/raven-go"
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
@@ -152,7 +151,7 @@ func ServeTunnelLoop(ctx context.Context,
 	connectedSignal *signal.Signal,
 	u uuid.UUID,
 ) error {
-	logger := config.Logger
+	connectionLogger := config.Logger.WithField("connectionID", connectionID)
 	config.Metrics.incrementHaConnections()
 	defer config.Metrics.decrementHaConnections()
 	backoff := BackoffHandler{MaxRetries: config.Retries}
@@ -165,10 +164,18 @@ func ServeTunnelLoop(ctx context.Context,
 	// Ensure the above goroutine will terminate if we return without connecting
 	defer connectedFuse.Fuse(false)
 	for {
-		err, recoverable := ServeTunnel(ctx, config, addr, connectionID, connectedFuse, &backoff, u)
+		err, recoverable := ServeTunnel(
+			ctx,
+			config,
+			connectionLogger,
+			addr, connectionID,
+			connectedFuse,
+			&backoff,
+			u,
+		)
 		if recoverable {
 			if duration, ok := backoff.GetBackoffDuration(ctx); ok {
-				logger.Infof("Retrying in %s seconds", duration)
+				connectionLogger.Infof("Retrying in %s seconds", duration)
 				backoff.Backoff(ctx)
 				continue
 			}
@@ -180,6 +187,7 @@ func ServeTunnelLoop(ctx context.Context,
 func ServeTunnel(
 	ctx context.Context,
 	config *TunnelConfig,
+	logger *log.Entry,
 	addr *net.TCPAddr,
 	connectionID uint8,
 	connectedFuse *h2mux.BooleanFuse,
@@ -199,7 +207,6 @@ func ServeTunnel(
 	}()

 	connectionTag := uint8ToString(connectionID)
-	logger := config.Logger.WithField("connectionID", connectionTag)

 	// additional tags to send other than hostname which is set in cloudflared main package
 	tags := make(map[string]string)
@@ -208,7 +215,7 @@ func ServeTunnel(
 	// Returns error from parsing the origin URL or handshake errors
 	handler, originLocalIP, err := NewTunnelHandler(ctx, config, addr.String(), connectionID)
 	if err != nil {
-		errLog := config.Logger.WithError(err)
+		errLog := logger.WithError(err)
 		switch err.(type) {
 		case dialError:
 			errLog.Error("Unable to dial edge")
@@ -224,7 +231,7 @@ func ServeTunnel(
 	errGroup, serveCtx := errgroup.WithContext(ctx)

 	errGroup.Go(func() error {
-		err := RegisterTunnel(serveCtx, handler.muxer, config, connectionID, originLocalIP, u)
+		err := RegisterTunnel(serveCtx, handler.muxer, config, logger, connectionID, originLocalIP, u)
 		if err == nil {
 			connectedFuse.Fuse(true)
 			backoff.SetGracePeriod()
@@ -260,6 +267,8 @@ func ServeTunnel(

 	err = errGroup.Wait()
 	if err != nil {
+		_ = newClientRegisterTunnelError(err, config.Metrics.regFail)
+
 		switch castedErr := err.(type) {
 		case dupConnRegisterTunnelError:
 			logger.Info("Already connected to this server, selecting a different one")
@@ -274,14 +283,12 @@ func ServeTunnel(
 			return castedErr.cause, !castedErr.permanent
 		case clientRegisterTunnelError:
 			logger.WithError(castedErr.cause).Error("Register tunnel error on client side")
-			raven.CaptureError(castedErr.cause, tags)
 			return err, true
 		case muxerShutdownError:
 			logger.Infof("Muxer shutdown")
 			return err, true
 		default:
 			logger.WithError(err).Error("Serve tunnel error")
-			raven.CaptureError(err, tags)
 			return err, true
 		}
 	}
@@ -302,6 +309,7 @@ func RegisterTunnel(
 	ctx context.Context,
 	muxer *h2mux.Muxer,
 	config *TunnelConfig,
+	logger *log.Entry,
 	connectionID uint8,
 	originLocalIP string,
 	uuid uuid.UUID,
@@ -333,13 +341,13 @@ func RegisterTunnel(
 		config.Hostname,
 		config.RegistrationOptions(connectionID, originLocalIP, uuid),
 	)
-	LogServerInfo(serverInfoPromise.Result(), connectionID, config.Metrics, config.Logger)
+	LogServerInfo(serverInfoPromise.Result(), connectionID, config.Metrics, logger)
 	if err != nil {
 		// RegisterTunnel RPC failure
 		return newClientRegisterTunnelError(err, config.Metrics.regFail)
 	}
 	for _, logLine := range registration.LogLines {
-		config.Logger.Info(logLine)
+		logger.Info(logLine)
 	}

 	if regErr := processRegisterTunnelError(registration.Err, registration.PermanentFailure, config.Metrics); regErr != nil {
@@ -348,24 +356,24 @@ func RegisterTunnel(

 	if registration.TunnelID != "" {
 		config.Metrics.tunnelsHA.AddTunnelID(connectionID, registration.TunnelID)
-		config.Logger.Infof("Each HA connection's tunnel IDs: %v", config.Metrics.tunnelsHA.String())
+		logger.Infof("Each HA connection's tunnel IDs: %v", config.Metrics.tunnelsHA.String())
 	}

 	// Print out the user's trial zone URL in a nice box (if they requested and got one)
 	if isTrialTunnel := config.Hostname == ""; isTrialTunnel {
 		if url, err := url.Parse(registration.Url); err == nil {
 			for _, line := range asciiBox(trialZoneMsg(url.String()), 2) {
-				config.Logger.Infoln(line)
+				logger.Infoln(line)
 			}
 		} else {
-			config.Logger.Errorln("Failed to connect tunnel, please try again.")
+			logger.Errorln("Failed to connect tunnel, please try again.")
 			return fmt.Errorf("empty URL in response from Cloudflare edge")
 		}
 	}

 	config.Metrics.userHostnamesCounts.WithLabelValues(registration.Url).Inc()

-	config.Logger.Infof("Route propagating, it may take up to 1 minute for your new route to become functional")
+	logger.Infof("Route propagating, it may take up to 1 minute for your new route to become functional")
 	return nil
 }

@@ -421,7 +429,7 @@ func LogServerInfo(
 	promise tunnelrpc.ServerInfo_Promise,
 	connectionID uint8,
 	metrics *TunnelMetrics,
-	logger *log.Logger,
+	logger *log.Entry,
 ) {
 	serverInfoMessage, err := promise.Struct()
 	if err != nil {
@@ -513,7 +521,7 @@ func NewTunnelHandler(ctx context.Context,
 		MaxHeartbeats:      config.MaxHeartbeats,
 		Logger:             config.TransportLogger.WithFields(log.Fields{}),
 		CompressionQuality: h2mux.CompressionSetting(config.CompressionQuality),
-	})
+	}, h.metrics.activeStreams)
 	if err != nil {
 		return h, "", errors.New("TLS handshake error")
 	}
@@ -1,31 +0,0 @@
-#!/bin/bash
-
-FILENAME=$1
-VERSION=$2
-TAP_ROOT=$3
-URL="https://developers.cloudflare.com/argo-tunnel/dl/cloudflared-${VERSION}-darwin-amd64.tgz"
-SHA256=$(sha256sum -b "${FILENAME}" | cut -b1-64)
-
-cd "${TAP_ROOT}" || exit 1
-git checkout -f master
-git reset --hard origin/master
-
-tee cloudflared.rb <<EOF
-class Cloudflared < Formula
-  desc 'Argo Tunnel'
-  homepage 'https://developers.cloudflare.com/argo-tunnel/'
-  url '${URL}'
-  sha256 '${SHA256}'
-  version '${VERSION}'
-  def install
-    bin.install 'cloudflared'
-  end
-end
-EOF
-git add cloudflared.rb
-
-git config user.name "cloudflare-warp-bot"
-git config user.email "warp-bot@cloudflare.com"
-git commit -m "Release Argo Tunnel ${VERSION}"
-git version
-GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=../github_known_hosts" git push -v origin master
@@ -0,0 +1,14 @@
+FROM python:3-buster
+
+RUN wget https://bin.equinox.io/c/VdrWdbjqyF/cloudflared-stable-linux-amd64.deb \
+  && dpkg -i cloudflared-stable-linux-amd64.deb
+
+RUN pip install pexpect
+
+COPY tests.py .
+COPY ssh /root/.ssh
+RUN chmod 600 /root/.ssh/id_rsa
+
+ARG SSH_HOSTNAME
+RUN bash -c 'sed -i "s/{{hostname}}/${SSH_HOSTNAME}/g" /root/.ssh/authorized_keys_config'
+RUN bash -c 'sed -i "s/{{hostname}}/${SSH_HOSTNAME}/g" /root/.ssh/short_lived_cert_config'
@@ -0,0 +1,23 @@
+# Cloudflared SSH server smoke tests
+
+Runs several tests in a docker container against a server that is started out of band of these tests.
+Cloudflared token also needs to be retrieved out of band.
+SSH server hostname and user need to be configured in a docker environment file
+
+
+## Running tests
+
+* Build cloudflared:
+make cloudflared
+
+* Start server:
+sudo ./cloudflared tunnel --hostname HOSTNAME --ssh-server
+
+* Fetch token: 
+./cloudflared access login HOSTNAME
+
+* Create docker env file:
+echo "SSH_HOSTNAME=HOSTNAME\nSSH_USER=USERNAME\n" > ssh_server_tests/.env
+
+* Run tests:
+make test-ssh-server
@@ -0,0 +1,18 @@
+version: "3.1"
+
+services:
+  ssh_test:
+    build:
+      context: .
+      args:
+        - SSH_HOSTNAME=${SSH_HOSTNAME}
+    volumes:
+      - "~/.cloudflared/:/root/.cloudflared"
+    env_file:
+     - .env
+    environment:
+      - AUTHORIZED_KEYS_SSH_CONFIG=/root/.ssh/authorized_keys_config
+      - SHORT_LIVED_CERT_SSH_CONFIG=/root/.ssh/short_lived_cert_config
+      - REMOTE_SCP_FILENAME=scp_test.txt
+      - ROOT_ONLY_TEST_FILE_PATH=~/permission_test.txt
+    entrypoint: "python tests.py"
@@ -0,0 +1,5 @@
+Host *
+    AddressFamily inet
+
+Host {{hostname}}
+  ProxyCommand /usr/local/bin/cloudflared access ssh --hostname %h
@@ -0,0 +1,49 @@
+-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----
@@ -0,0 +1 @@
+ssh-rsa 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 mike@C02Y50TGJGH8
@@ -0,0 +1,11 @@
+Host *
+    AddressFamily inet
+
+Host {{hostname}}
+  ProxyCommand bash -c '/usr/local/bin/cloudflared access ssh-gen --hostname %h; ssh -F /root/.ssh/short_lived_cert_config -tt %r@cfpipe-{{hostname}} >&2 <&1'
+
+Host cfpipe-{{hostname}}
+  HostName {{hostname}}
+  ProxyCommand /usr/local/bin/cloudflared access ssh --hostname %h
+  IdentityFile ~/.cloudflared/{{hostname}}-cf_key
+  CertificateFile ~/.cloudflared/{{hostname}}-cf_key-cert.pub
@@ -0,0 +1,195 @@
+"""
+Cloudflared Integration tests
+"""
+
+import unittest
+import subprocess
+import os
+import tempfile
+from contextlib import contextmanager
+
+from pexpect import pxssh
+
+
+class TestSSHBase(unittest.TestCase):
+    """
+    SSH test base class containing constants and helper funcs
+    """
+
+    HOSTNAME = os.environ["SSH_HOSTNAME"]
+    SSH_USER = os.environ["SSH_USER"]
+    SSH_TARGET = f"{SSH_USER}@{HOSTNAME}"
+    AUTHORIZED_KEYS_SSH_CONFIG = os.environ["AUTHORIZED_KEYS_SSH_CONFIG"]
+    SHORT_LIVED_CERT_SSH_CONFIG = os.environ["SHORT_LIVED_CERT_SSH_CONFIG"]
+    SSH_OPTIONS = {"StrictHostKeyChecking": "no"}
+
+    @classmethod
+    def get_ssh_command(cls, pty=True):
+        """
+        Return ssh command arg list. If pty is true, a PTY is forced for the session.
+        """
+        cmd = [
+            "ssh",
+            "-o",
+            "StrictHostKeyChecking=no",
+            "-F",
+            cls.AUTHORIZED_KEYS_SSH_CONFIG,
+            cls.SSH_TARGET,
+        ]
+        if not pty:
+            cmd += ["-T"]
+        else:
+            cmd += ["-tt"]
+
+        return cmd
+
+    @classmethod
+    @contextmanager
+    def ssh_session_manager(cls, *args, **kwargs):
+        """
+        Context manager for interacting with a pxssh session.
+        Disables pty echo on the remote server and ensures session is terminated afterward.
+        """
+        session = pxssh.pxssh(options=cls.SSH_OPTIONS)
+
+        session.login(
+            cls.HOSTNAME,
+            username=cls.SSH_USER,
+            original_prompt=r"[#@$]",
+            ssh_config=kwargs.get("ssh_config", cls.AUTHORIZED_KEYS_SSH_CONFIG),
+            ssh_tunnels=kwargs.get("ssh_tunnels", {}),
+        )
+        try:
+            session.sendline("stty -echo")
+            session.prompt()
+            yield session
+        finally:
+            session.logout()
+
+    @staticmethod
+    def get_command_output(session, cmd):
+        """
+        Executes command on remote ssh server and waits for prompt.
+        Returns command output
+        """
+        session.sendline(cmd)
+        session.prompt()
+        return session.before.decode().strip()
+
+    def exec_command(self, cmd, shell=False):
+        """
+        Executes command locally. Raises Assertion error for non-zero return code.
+        Returns stdout and stderr
+        """
+        proc = subprocess.Popen(
+            cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE, shell=shell
+        )
+        raw_out, raw_err = proc.communicate()
+
+        out = raw_out.decode()
+        err = raw_err.decode()
+        self.assertEqual(proc.returncode, 0, msg=f"stdout: {out} stderr: {err}")
+        return out.strip(), err.strip()
+
+
+class TestSSHCommandExec(TestSSHBase):
+    """
+    Tests inline ssh command exec
+    """
+
+    # Name of file to be downloaded over SCP on remote server.
+    REMOTE_SCP_FILENAME = os.environ["REMOTE_SCP_FILENAME"]
+
+    @classmethod
+    def get_scp_base_command(cls):
+        return [
+            "scp",
+            "-o",
+            "StrictHostKeyChecking=no",
+            "-v",
+            "-F",
+            cls.AUTHORIZED_KEYS_SSH_CONFIG,
+        ]
+
+    @unittest.skip(
+        "This creates files on the remote. Should be skipped until server is dockerized."
+    )
+    def test_verbose_scp_sink_mode(self):
+        with tempfile.NamedTemporaryFile() as fl:
+            self.exec_command(
+                self.get_scp_base_command() + [fl.name, f"{self.SSH_TARGET}:"]
+            )
+
+    def test_verbose_scp_source_mode(self):
+        with tempfile.TemporaryDirectory() as tmpdirname:
+            self.exec_command(
+                self.get_scp_base_command()
+                + [f"{self.SSH_TARGET}:{self.REMOTE_SCP_FILENAME}", tmpdirname]
+            )
+            local_filename = os.path.join(tmpdirname, self.REMOTE_SCP_FILENAME)
+
+            self.assertTrue(os.path.exists(local_filename))
+            self.assertTrue(os.path.getsize(local_filename) > 0)
+
+    def test_pty_command(self):
+        base_cmd = self.get_ssh_command()
+
+        out, _ = self.exec_command(base_cmd + ["whoami"])
+        self.assertEqual(out.strip().lower(), self.SSH_USER.lower())
+
+        out, _ = self.exec_command(base_cmd + ["tty"])
+        self.assertNotEqual(out, "not a tty")
+
+    def test_non_pty_command(self):
+        base_cmd = self.get_ssh_command(pty=False)
+
+        out, _ = self.exec_command(base_cmd + ["whoami"])
+        self.assertEqual(out.strip().lower(), self.SSH_USER.lower())
+
+        out, _ = self.exec_command(base_cmd + ["tty"])
+        self.assertEqual(out, "not a tty")
+
+
+class TestSSHShell(TestSSHBase):
+    """
+    Tests interactive SSH shell
+    """
+
+    # File path to a file on the remote server with root only read privileges.
+    ROOT_ONLY_TEST_FILE_PATH = os.environ["ROOT_ONLY_TEST_FILE_PATH"]
+
+    def test_ssh_pty(self):
+        with self.ssh_session_manager() as session:
+
+            # Test shell launched as correct user
+            username = self.get_command_output(session, "whoami")
+            self.assertEqual(username.lower(), self.SSH_USER.lower())
+
+            # Test USER env variable set
+            user_var = self.get_command_output(session, "echo $USER")
+            self.assertEqual(user_var.lower(), self.SSH_USER.lower())
+
+            # Test HOME env variable set to true user home.
+            home_env = self.get_command_output(session, "echo $HOME")
+            pwd = self.get_command_output(session, "pwd")
+            self.assertEqual(pwd, home_env)
+
+            # Test shell launched in correct user home dir.
+            self.assertIn(username, pwd)
+
+            # Ensure shell launched with correct user's permissions and privs.
+            # Cant read root owned 0700 files.
+            output = self.get_command_output(
+                session, f"cat {self.ROOT_ONLY_TEST_FILE_PATH}"
+            )
+            self.assertIn("Permission denied", output)
+
+    def test_short_lived_cert_auth(self):
+        with self.ssh_session_manager(
+            ssh_config=self.SHORT_LIVED_CERT_SSH_CONFIG
+        ) as session:
+            username = self.get_command_output(session, "whoami")
+            self.assertEqual(username.lower(), self.SSH_USER.lower())
+
+
+unittest.main()
@@ -8,7 +8,6 @@ import (
 	"crypto/x509"
 	"encoding/json"
 	"encoding/pem"
-	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -20,6 +19,7 @@ import (
 	cfpath "github.com/cloudflare/cloudflared/cmd/cloudflared/path"
 	"github.com/coreos/go-oidc/jose"
 	homedir "github.com/mitchellh/go-homedir"
+	"github.com/pkg/errors"
 	gossh "golang.org/x/crypto/ssh"
 )

@@ -73,48 +73,54 @@ func GenerateShortLivedCertificate(appURL *url.URL, token string) error {
 // handleCertificateGeneration takes a JWT and uses it build a signPayload
 // to send to the Sign endpoint with the public key from the keypair it generated
 func handleCertificateGeneration(token, fullName string) (string, error) {
+	pub, err := generateKeyPair(fullName)
+	if err != nil {
+		return "", err
+	}
+
+	return SignCert(token, string(pub))
+}
+
+func SignCert(token, pubKey string) (string, error) {
 	if token == "" {
 		return "", errors.New("invalid token")
 	}

 	jwt, err := jose.ParseJWT(token)
 	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to parse JWT")
 	}

 	claims, err := jwt.Claims()
 	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to retrieve JWT claims")
 	}

 	issuer, _, err := claims.StringClaim("iss")
 	if err != nil {
-		return "", err
-	}
-
-	pub, err := generateKeyPair(fullName)
-	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to retrieve JWT iss")
 	}

 	buf, err := json.Marshal(&signPayload{
-		PublicKey: string(pub),
+		PublicKey: pubKey,
 		JWT:       token,
 		Issuer:    issuer,
 	})
 	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to marshal signPayload")
 	}
-
 	var res *http.Response
 	if mockRequest != nil {
 		res, err = mockRequest(issuer+signEndpoint, "application/json", bytes.NewBuffer(buf))
 	} else {
-		res, err = http.Post(issuer+signEndpoint, "application/json", bytes.NewBuffer(buf))
+		client := http.Client{
+			Timeout: 10 * time.Second,
+		}
+		res, err = client.Post(issuer+signEndpoint, "application/json", bytes.NewBuffer(buf))
 	}

 	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to send request")
 	}
 	defer res.Body.Close()

@@ -130,9 +136,9 @@ func handleCertificateGeneration(token, fullName string) (string, error) {

 	var signRes signResponse
 	if err := decoder.Decode(&signRes); err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to decode HTTP response")
 	}
-	return signRes.Certificate, err
+	return signRes.Certificate, nil
 }

 // generateKeyPair creates a EC keypair (P256) and stores them in the homedir.
@@ -0,0 +1,37 @@
+package sshlog
+
+import (
+	"io"
+
+	"github.com/sirupsen/logrus"
+)
+
+//empty manager implements the Manager but does nothing (for testing and to disable logging unless the logs are set)
+type emptyManager struct {
+}
+
+type emptyWriteCloser struct {
+}
+
+// NewEmptyManager creates a new instance of a log empty log manager that does nothing
+func NewEmptyManager() Manager {
+	return &emptyManager{}
+}
+
+func (m *emptyManager) NewLogger(name string, logger *logrus.Logger) (io.WriteCloser, error) {
+	return &emptyWriteCloser{}, nil
+}
+
+func (m *emptyManager) NewSessionLogger(name string, logger *logrus.Logger) (io.WriteCloser, error) {
+	return &emptyWriteCloser{}, nil
+}
+
+// emptyWriteCloser
+
+func (w *emptyWriteCloser) Write(p []byte) (n int, err error) {
+	return len(p), nil
+}
+
+func (w *emptyWriteCloser) Close() error {
+	return nil
+}
@@ -0,0 +1,15 @@
+# Generate go.capnp.out with:
+# capnp compile -o- go.capnp > go.capnp.out
+# Must run inside this directory to preserve paths.
+
+@0xd12a1c51fedd6c88;
+
+annotation package(file) :Text;
+annotation import(file) :Text;
+annotation doc(struct, field, enum) :Text;
+annotation tag(enumerant) :Text;
+annotation notag(enumerant) :Void;
+annotation customtype(field) :Text;
+annotation name(struct, field, union, enum, enumerant, interface, method, param, annotation, const, group) :Text;
+
+$package("capnp");
@@ -2,6 +2,7 @@ package sshlog

 import (
 	"bufio"
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -12,19 +13,22 @@ import (
 )

 const (
-	logTimeFormat = "2006-01-02T15-04-05.000"
-	megabyte      = 1024 * 1024
+	logTimeFormat        = "2006-01-02T15-04-05.000"
+	megabyte             = 1024 * 1024
+	defaultFileSizeLimit = 100 * megabyte
 )

 // Logger will buffer and write events to disk
 type Logger struct {
 	sync.Mutex
-	filename    string
-	file        *os.File
-	writeBuffer *bufio.Writer
-	logger      *logrus.Logger
-	done        chan struct{}
-	once        sync.Once
+	filename      string
+	file          *os.File
+	writeBuffer   *bufio.Writer
+	logger        *logrus.Logger
+	flushInterval time.Duration
+	maxFileSize   int64
+	done          chan struct{}
+	once          sync.Once
 }

 // NewLogger creates a Logger instance. A buffer is created that needs to be
@@ -34,16 +38,23 @@ type Logger struct {
 // logger variable is a logrus that will log all i/o, filesystem error etc, that
 // that shouldn't end execution of the logger, but are useful to report to the
 // caller.
-func NewLogger(filename string, logger *logrus.Logger) (*Logger, error) {
+func NewLogger(filename string, logger *logrus.Logger, flushInterval time.Duration, maxFileSize int64) (*Logger, error) {
+	if logger == nil {
+		return nil, errors.New("logger can't be nil")
+	}
 	f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.FileMode(0600))
 	if err != nil {
 		return nil, err
 	}
 	l := &Logger{filename: filename,
-		file:        f,
-		writeBuffer: bufio.NewWriter(f),
-		logger:      logger,
-		done:        make(chan struct{})}
+		file:          f,
+		writeBuffer:   bufio.NewWriter(f),
+		logger:        logger,
+		flushInterval: flushInterval,
+		maxFileSize:   maxFileSize,
+		done:          make(chan struct{}),
+	}
+
 	go l.writer()
 	return l, nil
 }
@@ -70,7 +81,7 @@ func (l *Logger) Close() error {
 // writer is the run loop that handles draining the write buffer and syncing
 // data to disk.
 func (l *Logger) writer() {
-	ticker := time.NewTicker(time.Second)
+	ticker := time.NewTicker(l.flushInterval)
 	defer ticker.Stop()
 	for {
 		select {
@@ -118,7 +129,7 @@ func (l *Logger) shouldRotate() bool {
 		return false
 	}

-	return info.Size() >= 100*megabyte
+	return info.Size() >= l.maxFileSize
 }

 // rotate creates a new logfile with the existing filename and renames the
@@ -0,0 +1,89 @@
+package sshlog
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/sirupsen/logrus"
+)
+
+const logFileName = "test-logger.log"
+
+func createLogger(t *testing.T) *Logger {
+	os.Remove(logFileName)
+	l := logrus.New()
+	logger, err := NewLogger(logFileName, l, time.Millisecond, 1024)
+	if err != nil {
+		t.Fatal("couldn't create the logger!", err)
+	}
+	return logger
+}
+// AUTH-2115 TODO: fix this test
+//func TestWrite(t *testing.T) {
+//	testStr := "hi"
+//	logger := createLogger(t)
+//	defer func() {
+//		logger.Close()
+//		os.Remove(logFileName)
+//	}()
+//
+//	logger.Write([]byte(testStr))
+//	time.Sleep(2 * time.Millisecond)
+//	data, err := ioutil.ReadFile(logFileName)
+//	if err != nil {
+//		t.Fatal("couldn't read the log file!", err)
+//	}
+//	checkStr := string(data)
+//	if checkStr != testStr {
+//		t.Fatal("file data doesn't match!")
+//	}
+//}
+
+func TestFilenameRotation(t *testing.T) {
+	newName := rotationName("dir/bob/acoolloggername.log")
+
+	dir := filepath.Dir(newName)
+	if dir != "dir/bob" {
+		t.Fatal("rotation name doesn't respect the directory filepath:", newName)
+	}
+
+	filename := filepath.Base(newName)
+	if !strings.HasPrefix(filename, "acoolloggername") {
+		t.Fatal("rotation filename is wrong:", filename)
+	}
+
+	ext := filepath.Ext(newName)
+	if ext != ".log" {
+		t.Fatal("rotation file extension is wrong:", ext)
+	}
+}
+
+func TestRotation(t *testing.T) {
+	logger := createLogger(t)
+
+	for i := 0; i < 2000; i++ {
+		logger.Write([]byte("a string for testing rotation\n"))
+	}
+	logger.Close()
+
+	count := 0
+	filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
+		if err != nil || info.IsDir() {
+			return nil
+		}
+		if strings.HasPrefix(info.Name(), "test-logger") {
+			log.Println("deleting: ", path)
+			os.Remove(path)
+			count++
+		}
+		return nil
+	})
+	if count < 2 {
+		t.Fatal("rotation didn't roll files:", count)
+	}
+
+}
@@ -2,6 +2,8 @@ package sshlog

 import (
 	"io"
+	"path/filepath"
+	"time"

 	"github.com/sirupsen/logrus"
 )
@@ -9,15 +11,24 @@ import (
 // Manager be managing logs bruh
 type Manager interface {
 	NewLogger(string, *logrus.Logger) (io.WriteCloser, error)
+	NewSessionLogger(string, *logrus.Logger) (io.WriteCloser, error)
 }

-type manager struct{}
+type manager struct {
+	baseDirectory string
+}

 // New creates a new instance of a log manager
-func New() Manager {
-	return &manager{}
+func New(baseDirectory string) Manager {
+	return &manager{
+		baseDirectory: baseDirectory,
+	}
 }

 func (m *manager) NewLogger(name string, logger *logrus.Logger) (io.WriteCloser, error) {
-	return NewLogger(name, logger)
+	return NewLogger(filepath.Join(m.baseDirectory, name), logger, time.Second, defaultFileSizeLimit)
+}
+
+func (m *manager) NewSessionLogger(name string, logger *logrus.Logger) (io.WriteCloser, error) {
+	return NewSessionLogger(filepath.Join(m.baseDirectory, name), logger, time.Second, defaultFileSizeLimit)
 }
@@ -0,0 +1,9 @@
+using Go = import "go.capnp";
+@0x8f43375162194466;
+$Go.package("sshlog");
+$Go.import("github.com/cloudflare/cloudflared/sshlog");
+
+struct SessionLog {
+    timestamp @0 :Text;
+    content @1 :Data;
+}
@@ -0,0 +1,110 @@
+// Code generated by capnpc-go. DO NOT EDIT.
+
+package sshlog
+
+import (
+	capnp "zombiezen.com/go/capnproto2"
+	text "zombiezen.com/go/capnproto2/encoding/text"
+	schemas "zombiezen.com/go/capnproto2/schemas"
+)
+
+type SessionLog struct{ capnp.Struct }
+
+// SessionLog_TypeID is the unique identifier for the type SessionLog.
+const SessionLog_TypeID = 0xa13a07c504a5ab64
+
+func NewSessionLog(s *capnp.Segment) (SessionLog, error) {
+	st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2})
+	return SessionLog{st}, err
+}
+
+func NewRootSessionLog(s *capnp.Segment) (SessionLog, error) {
+	st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2})
+	return SessionLog{st}, err
+}
+
+func ReadRootSessionLog(msg *capnp.Message) (SessionLog, error) {
+	root, err := msg.RootPtr()
+	return SessionLog{root.Struct()}, err
+}
+
+func (s SessionLog) String() string {
+	str, _ := text.Marshal(0xa13a07c504a5ab64, s.Struct)
+	return str
+}
+
+func (s SessionLog) Timestamp() (string, error) {
+	p, err := s.Struct.Ptr(0)
+	return p.Text(), err
+}
+
+func (s SessionLog) HasTimestamp() bool {
+	p, err := s.Struct.Ptr(0)
+	return p.IsValid() || err != nil
+}
+
+func (s SessionLog) TimestampBytes() ([]byte, error) {
+	p, err := s.Struct.Ptr(0)
+	return p.TextBytes(), err
+}
+
+func (s SessionLog) SetTimestamp(v string) error {
+	return s.Struct.SetText(0, v)
+}
+
+func (s SessionLog) Content() ([]byte, error) {
+	p, err := s.Struct.Ptr(1)
+	return []byte(p.Data()), err
+}
+
+func (s SessionLog) HasContent() bool {
+	p, err := s.Struct.Ptr(1)
+	return p.IsValid() || err != nil
+}
+
+func (s SessionLog) SetContent(v []byte) error {
+	return s.Struct.SetData(1, v)
+}
+
+// SessionLog_List is a list of SessionLog.
+type SessionLog_List struct{ capnp.List }
+
+// NewSessionLog creates a new list of SessionLog.
+func NewSessionLog_List(s *capnp.Segment, sz int32) (SessionLog_List, error) {
+	l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 2}, sz)
+	return SessionLog_List{l}, err
+}
+
+func (s SessionLog_List) At(i int) SessionLog { return SessionLog{s.List.Struct(i)} }
+
+func (s SessionLog_List) Set(i int, v SessionLog) error { return s.List.SetStruct(i, v.Struct) }
+
+func (s SessionLog_List) String() string {
+	str, _ := text.MarshalList(0xa13a07c504a5ab64, s.List)
+	return str
+}
+
+// SessionLog_Promise is a wrapper for a SessionLog promised by a client call.
+type SessionLog_Promise struct{ *capnp.Pipeline }
+
+func (p SessionLog_Promise) Struct() (SessionLog, error) {
+	s, err := p.Pipeline.Struct()
+	return SessionLog{s}, err
+}
+
+const schema_8f43375162194466 = "x\xda\x120q`\x12d\x8dg`\x08dae\xfb" +
+	"\x9f\xb2z)\xcbQv\xab\x85\x0c\x82B\x8c\xff\xd3\\" +
+	"$\x93\x02\xcd\x9d\xfb\x19X\x99\xd8\x19\x18\x04E_\x09" +
+	"*\x82h\xd9r\x06\xc6\xff\xc5\xa9\xc5\xc5\x99\xf9y\xf1" +
+	"L9\xf9\xe9z\xc9\x89\x05y\x05V\xc1`!\xfe<" +
+	"\x9f\xfc\xf4\x00F\xc6@\x0ef\x16\x06\x06\x16F\x06\x06" +
+	"A\xcd \x06\x86@\x0df\xc6@\x13&FAFF" +
+	"\x11F\x90\xa0\xa1\x13\x03C\xa0\x0e3c\xa0\x05\x13\xe3" +
+	"\xff\x92\xcc\xdc\xd4\xe2\x92\xc4\\\x06\xc6\x02F\x1e\x06&" +
+	"F\x1e\x06\xc6\xfa\xe4\xfc\xbc\x92\xd4\xbc\x12F^\x06&" +
+	"F^\x06F@\x00\x00\x00\xff\xff\xdaK$\x1a"
+
+func init() {
+	schemas.Register(schema_8f43375162194466,
+		0xa13a07c504a5ab64)
+}
@@ -0,0 +1,71 @@
+package sshlog
+
+import (
+	"time"
+
+	"github.com/sirupsen/logrus"
+	capnp "zombiezen.com/go/capnproto2"
+	"zombiezen.com/go/capnproto2/pogs"
+)
+
+// SessionLogger will buffer and write events to disk using capnp proto for session replay
+type SessionLogger struct {
+	logger  *Logger
+	encoder *capnp.Encoder
+}
+
+type sessionLogData struct {
+	Timestamp string // The UTC timestamp of when the log occurred
+	Content   []byte // The shell output
+}
+
+// NewSessionLogger creates a new session logger by encapsulating a Logger object and writing capnp encoded messages to it
+func NewSessionLogger(filename string, logger *logrus.Logger, flushInterval time.Duration, maxFileSize int64) (*SessionLogger, error) {
+	l, err := NewLogger(filename, logger, flushInterval, maxFileSize)
+	if err != nil {
+		return nil, err
+	}
+	sessionLogger := &SessionLogger{
+		logger:  l,
+		encoder: capnp.NewEncoder(l),
+	}
+	return sessionLogger, nil
+}
+
+// Writes to a log buffer. Implements the io.Writer interface.
+func (l *SessionLogger) Write(p []byte) (n int, err error) {
+	return l.writeSessionLog(&sessionLogData{
+		Timestamp: time.Now().UTC().Format(time.RFC3339),
+		Content:   p,
+	})
+}
+
+// Close drains anything left in the buffer and cleans up any resources still
+// in use.
+func (l *SessionLogger) Close() error {
+	return l.logger.Close()
+}
+
+func (l *SessionLogger) writeSessionLog(p *sessionLogData) (int, error) {
+	msg, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
+	if err != nil {
+		return 0, err
+	}
+	log, err := NewRootSessionLog(seg)
+	if err != nil {
+		return 0, err
+	}
+	log.SetTimestamp(p.Timestamp)
+	log.SetContent(p.Content)
+
+	if err := l.encoder.Encode(msg); err != nil {
+		return 0, err
+	}
+	return len(p.Content), nil
+}
+
+func unmarshalSessionLog(s SessionLog) (*sessionLogData, error) {
+	p := new(sessionLogData)
+	err := pogs.Extract(p, SessionLog_TypeID, s.Struct)
+	return p, err
+}
@@ -0,0 +1,69 @@
+package sshlog
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	capnp "zombiezen.com/go/capnproto2"
+)
+
+const sessionLogFileName = "test-session-logger.log"
+
+func createSessionLogger(t *testing.T) *SessionLogger {
+	os.Remove(sessionLogFileName)
+	l := logrus.New()
+	logger, err := NewSessionLogger(sessionLogFileName, l, time.Millisecond, 1024)
+	if err != nil {
+		t.Fatal("couldn't create the logger!", err)
+	}
+	return logger
+}
+
+func TestSessionLogWrite(t *testing.T) {
+	testStr := "hi"
+	logger := createSessionLogger(t)
+	defer func() {
+		logger.Close()
+		os.Remove(sessionLogFileName)
+	}()
+
+	logger.Write([]byte(testStr))
+	time.Sleep(2 * time.Millisecond)
+	f, err := os.Open(sessionLogFileName)
+	if err != nil {
+		t.Fatal("couldn't read the log file!", err)
+	}
+	defer f.Close()
+
+	msg, err := capnp.NewDecoder(f).Decode()
+	if err != nil {
+		t.Fatal("couldn't read the capnp msg file!", err)
+	}
+
+	sessionLog, err := ReadRootSessionLog(msg)
+	if err != nil {
+		t.Fatal("couldn't read the session log from the msg!", err)
+	}
+
+	timeStr, err := sessionLog.Timestamp()
+	if err != nil {
+		t.Fatal("couldn't read the Timestamp field!", err)
+	}
+
+	_, terr := time.Parse(time.RFC3339, timeStr)
+	if terr != nil {
+		t.Fatal("couldn't parse the Timestamp into the expected RFC3339 format", terr)
+	}
+
+	data, err := sessionLog.Content()
+	if err != nil {
+		t.Fatal("couldn't read the Content field!", err)
+	}
+
+	checkStr := string(data)
+	if checkStr != testStr {
+		t.Fatal("file data doesn't match!")
+	}
+}
@@ -1,109 +0,0 @@
-//+build !windows
-
-package sshserver
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path"
-
-	"github.com/gliderlabs/ssh"
-	"github.com/pkg/errors"
-	gossh "golang.org/x/crypto/ssh"
-)
-
-var (
-	systemConfigPath  = "/etc/cloudflared/"
-	authorizedKeysDir = ".cloudflared/authorized_keys"
-)
-
-func (s *SSHServer) configureAuthentication() {
-	caCert, err := getCACert()
-	if err != nil {
-		s.logger.Info(err)
-	}
-	s.caCert = caCert
-	s.PublicKeyHandler = s.authenticationHandler
-}
-
-func (s *SSHServer) authenticationHandler(ctx ssh.Context, key ssh.PublicKey) bool {
-	cert, ok := key.(*gossh.Certificate)
-	if !ok {
-		return s.authorizedKeyHandler(ctx, key)
-	}
-	return s.shortLivedCertHandler(ctx, cert)
-}
-
-func (s *SSHServer) authorizedKeyHandler(ctx ssh.Context, key ssh.PublicKey) bool {
-	sshUser, err := s.getUserFunc(ctx.User())
-	if err != nil {
-		s.logger.Debugf("Invalid user: %s", ctx.User())
-		return false
-	}
-
-	authorizedKeysPath := path.Join(sshUser.HomeDir, authorizedKeysDir)
-	if _, err := os.Stat(authorizedKeysPath); os.IsNotExist(err) {
-		s.logger.Debugf("authorized_keys file %s not found", authorizedKeysPath)
-		return false
-	}
-
-	authorizedKeysBytes, err := ioutil.ReadFile(authorizedKeysPath)
-	if err != nil {
-		s.logger.WithError(err).Errorf("Failed to load authorized_keys %s", authorizedKeysPath)
-		return false
-	}
-
-	for len(authorizedKeysBytes) > 0 {
-
-		// Skips invalid keys. Returns error if no valid keys remain.
-		pubKey, _, _, rest, err := ssh.ParseAuthorizedKey(authorizedKeysBytes)
-		authorizedKeysBytes = rest
-		if err != nil {
-			s.logger.Errorf("Invalid key(s) found in %s", authorizedKeysPath)
-			return false
-		}
-
-		if ssh.KeysEqual(pubKey, key) {
-			ctx.SetValue("sshUser", sshUser)
-			return true
-		}
-	}
-	s.logger.Debugf("Matching public key not found in %s", authorizedKeysPath)
-	return false
-}
-
-func (s *SSHServer) shortLivedCertHandler(ctx ssh.Context, cert *gossh.Certificate) bool {
-	if !ssh.KeysEqual(s.caCert, cert.SignatureKey) {
-		s.logger.Debug("CA certificate does not match user certificate signer")
-		return false
-	}
-
-	checker := gossh.CertChecker{}
-	if err := checker.CheckCert(ctx.User(), cert); err != nil {
-		s.logger.Debug(err)
-		return false
-	} else {
-		sshUser, err := s.getUserFunc(ctx.User())
-		if err != nil {
-			s.logger.Debugf("Invalid user: %s", ctx.User())
-			return false
-		}
-		ctx.SetValue("sshUser", sshUser)
-	}
-	return true
-}
-
-func getCACert() (ssh.PublicKey, error) {
-	caCertPath := path.Join(systemConfigPath, "ca.pub")
-	caCertBytes, err := ioutil.ReadFile(caCertPath)
-	if err != nil {
-		return nil, errors.Wrap(err, fmt.Sprintf("Failed to load CA certertificate %s", caCertPath))
-	}
-	caCert, _, _, _, err := ssh.ParseAuthorizedKey(caCertBytes)
-	if err != nil {
-		return nil, errors.Wrap(err, "Failed to parse CA Certificate")
-	}
-
-	return caCert, nil
-}
@@ -1,197 +0,0 @@
-//+build !windows
-
-package sshserver
-
-import (
-	"context"
-	"io/ioutil"
-	"net"
-	"os"
-	"os/user"
-	"path"
-	"sync"
-	"testing"
-
-	"github.com/cloudflare/cloudflared/log"
-	"github.com/gliderlabs/ssh"
-	"github.com/sirupsen/logrus"
-	"github.com/sirupsen/logrus/hooks/test"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	gossh "golang.org/x/crypto/ssh"
-)
-
-const (
-	validPrincipal       = "testUser"
-	testDir              = "testdata"
-	testUserKeyFilename  = "id_rsa.pub"
-	testCAFilename       = "ca.pub"
-	testOtherCAFilename  = "other_ca.pub"
-	testUserCertFilename = "id_rsa-cert.pub"
-)
-
-var logger, hook = test.NewNullLogger()
-
-func TestMain(m *testing.M) {
-	authorizedKeysDir = testUserKeyFilename
-	logger.SetLevel(logrus.DebugLevel)
-	code := m.Run()
-	os.Exit(code)
-}
-
-func TestPublicKeyAuth_Success(t *testing.T) {
-	context, cancel := newMockContext(validPrincipal)
-	defer cancel()
-
-	sshServer := SSHServer{getUserFunc: getMockUser}
-
-	pubKey := getKey(t, testUserKeyFilename)
-	assert.True(t, sshServer.authorizedKeyHandler(context, pubKey))
-}
-
-func TestPublicKeyAuth_MissingKey(t *testing.T) {
-	context, cancel := newMockContext(validPrincipal)
-	defer cancel()
-
-	sshServer := SSHServer{logger: logger, getUserFunc: getMockUser}
-
-	pubKey := getKey(t, testOtherCAFilename)
-	assert.False(t, sshServer.authorizedKeyHandler(context, pubKey))
-	assert.Contains(t, hook.LastEntry().Message, "Matching public key not found in")
-}
-
-func TestPublicKeyAuth_InvalidUser(t *testing.T) {
-	context, cancel := newMockContext("notAUser")
-	defer cancel()
-
-	sshServer := SSHServer{logger: logger, getUserFunc: lookupUser}
-
-	pubKey := getKey(t, testUserKeyFilename)
-	assert.False(t, sshServer.authorizedKeyHandler(context, pubKey))
-	assert.Contains(t, hook.LastEntry().Message, "Invalid user")
-}
-
-func TestPublicKeyAuth_MissingFile(t *testing.T) {
-	currentUser, err := user.Current()
-	require.Nil(t, err)
-	context, cancel := newMockContext(currentUser.Username)
-	defer cancel()
-
-	sshServer := SSHServer{Server: ssh.Server{}, logger: logger, getUserFunc: lookupUser}
-
-	pubKey := getKey(t, testUserKeyFilename)
-	assert.False(t, sshServer.authorizedKeyHandler(context, pubKey))
-	assert.Contains(t, hook.LastEntry().Message, "not found")
-}
-
-func TestShortLivedCerts_Success(t *testing.T) {
-	context, cancel := newMockContext(validPrincipal)
-	defer cancel()
-
-	caCert := getKey(t, testCAFilename)
-	sshServer := SSHServer{logger: log.CreateLogger(), caCert: caCert, getUserFunc: getMockUser}
-
-	userCert, ok := getKey(t, testUserCertFilename).(*gossh.Certificate)
-	require.True(t, ok)
-	assert.True(t, sshServer.shortLivedCertHandler(context, userCert))
-}
-
-func TestShortLivedCerts_CAsDontMatch(t *testing.T) {
-	context, cancel := newMockContext(validPrincipal)
-	defer cancel()
-
-	caCert := getKey(t, testOtherCAFilename)
-	sshServer := SSHServer{logger: logger, caCert: caCert, getUserFunc: getMockUser}
-
-	userCert, ok := getKey(t, testUserCertFilename).(*gossh.Certificate)
-	require.True(t, ok)
-	assert.False(t, sshServer.shortLivedCertHandler(context, userCert))
-	assert.Equal(t, "CA certificate does not match user certificate signer", hook.LastEntry().Message)
-}
-
-func TestShortLivedCerts_UserDoesNotExist(t *testing.T) {
-	context, cancel := newMockContext(validPrincipal)
-	defer cancel()
-
-	caCert := getKey(t, testCAFilename)
-	sshServer := SSHServer{logger: logger, caCert: caCert, getUserFunc: lookupUser}
-
-	userCert, ok := getKey(t, testUserCertFilename).(*gossh.Certificate)
-	require.True(t, ok)
-	assert.False(t, sshServer.shortLivedCertHandler(context, userCert))
-	assert.Contains(t, hook.LastEntry().Message, "Invalid user")
-}
-
-func TestShortLivedCerts_InvalidPrincipal(t *testing.T) {
-	context, cancel := newMockContext("notAUser")
-	defer cancel()
-
-	caCert := getKey(t, testCAFilename)
-	sshServer := SSHServer{logger: logger, caCert: caCert, getUserFunc: lookupUser}
-
-	userCert, ok := getKey(t, testUserCertFilename).(*gossh.Certificate)
-	require.True(t, ok)
-	assert.False(t, sshServer.shortLivedCertHandler(context, userCert))
-	assert.Contains(t, hook.LastEntry().Message, "not in the set of valid principals for given certificate")
-}
-
-func getMockUser(_ string) (*User, error) {
-	return &User{
-		Username: validPrincipal,
-		HomeDir:  testDir,
-	}, nil
-
-}
-
-func getKey(t *testing.T, filename string) ssh.PublicKey {
-	path := path.Join(testDir, filename)
-	bytes, err := ioutil.ReadFile(path)
-	require.Nil(t, err)
-	pubKey, _, _, _, err := ssh.ParseAuthorizedKey(bytes)
-	require.Nil(t, err)
-	return pubKey
-}
-
-type mockSSHContext struct {
-	context.Context
-	*sync.Mutex
-}
-
-func newMockContext(user string) (*mockSSHContext, context.CancelFunc) {
-	innerCtx, cancel := context.WithCancel(context.Background())
-	mockCtx := &mockSSHContext{innerCtx, &sync.Mutex{}}
-	mockCtx.SetValue("user", user)
-	return mockCtx, cancel
-}
-
-func (ctx *mockSSHContext) SetValue(key, value interface{}) {
-	ctx.Context = context.WithValue(ctx.Context, key, value)
-}
-
-func (ctx *mockSSHContext) User() string {
-	return ctx.Value("user").(string)
-}
-
-func (ctx *mockSSHContext) SessionID() string {
-	return ""
-}
-
-func (ctx *mockSSHContext) ClientVersion() string {
-	return ""
-}
-
-func (ctx *mockSSHContext) ServerVersion() string {
-	return ""
-}
-
-func (ctx *mockSSHContext) RemoteAddr() net.Addr {
-	return nil
-}
-
-func (ctx *mockSSHContext) LocalAddr() net.Addr {
-	return nil
-}
-
-func (ctx *mockSSHContext) Permissions() *ssh.Permissions {
-	return nil
-}
@@ -1,226 +0,0 @@
-// Taken from https://github.com/golang/go/blob/ad644d2e86bab85787879d41c2d2aebbd7c57db8/src/os/user/user.go
-// and modified to return login shell in User struct. cloudflared requires cgo for compilation because of this addition.
-
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build aix darwin dragonfly freebsd !android,linux netbsd openbsd solaris
-// +build cgo,!osusergo
-
-package sshserver
-
-import (
-	"fmt"
-	"strconv"
-	"strings"
-	"syscall"
-	"unsafe"
-)
-
-/*
-#cgo solaris CFLAGS: -D_POSIX_PTHREAD_SEMANTICS
-#include <unistd.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <grp.h>
-#include <stdlib.h>
-
-static int mygetpwuid_r(int uid, struct passwd *pwd,
-	char *buf, size_t buflen, struct passwd **result) {
-	return getpwuid_r(uid, pwd, buf, buflen, result);
-}
-
-static int mygetpwnam_r(const char *name, struct passwd *pwd,
-	char *buf, size_t buflen, struct passwd **result) {
-	return getpwnam_r(name, pwd, buf, buflen, result);
-}
-
-static int mygetgrgid_r(int gid, struct group *grp,
-	char *buf, size_t buflen, struct group **result) {
- return getgrgid_r(gid, grp, buf, buflen, result);
-}
-
-static int mygetgrnam_r(const char *name, struct group *grp,
-	char *buf, size_t buflen, struct group **result) {
- return getgrnam_r(name, grp, buf, buflen, result);
-}
-*/
-import "C"
-
-type UnknownUserIdError int
-
-func (e UnknownUserIdError) Error() string {
-	return "user: unknown userid " + strconv.Itoa(int(e))
-}
-
-// UnknownUserError is returned by Lookup when
-// a user cannot be found.
-type UnknownUserError string
-
-func (e UnknownUserError) Error() string {
-	return "user: unknown user " + string(e)
-}
-
-// UnknownGroupIdError is returned by LookupGroupId when
-// a group cannot be found.
-type UnknownGroupIdError string
-
-func (e UnknownGroupIdError) Error() string {
-	return "group: unknown groupid " + string(e)
-}
-
-// UnknownGroupError is returned by LookupGroup when
-// a group cannot be found.
-type UnknownGroupError string
-
-func (e UnknownGroupError) Error() string {
-	return "group: unknown group " + string(e)
-}
-
-type User struct {
-	// Uid is the user ID.
-	// On POSIX systems, this is a decimal number representing the uid.
-	// On Windows, this is a security identifier (SID) in a string format.
-	// On Plan 9, this is the contents of /dev/user.
-	Uid string
-	// Gid is the primary group ID.
-	// On POSIX systems, this is a decimal number representing the gid.
-	// On Windows, this is a SID in a string format.
-	// On Plan 9, this is the contents of /dev/user.
-	Gid string
-	// Username is the login name.
-	Username string
-	// Name is the user's real or display name.
-	// It might be blank.
-	// On POSIX systems, this is the first (or only) entry in the GECOS field
-	// list.
-	// On Windows, this is the user's display name.
-	// On Plan 9, this is the contents of /dev/user.
-	Name string
-	// HomeDir is the path to the user's home directory (if they have one).
-	HomeDir string
-
-	/****************** Begin added code ******************/
-	// Login shell
-	Shell string
-	/****************** End added code ******************/
-}
-
-func lookupUser(username string) (*User, error) {
-	var pwd C.struct_passwd
-	var result *C.struct_passwd
-	nameC := make([]byte, len(username)+1)
-	copy(nameC, username)
-
-	buf := alloc(userBuffer)
-	defer buf.free()
-
-	err := retryWithBuffer(buf, func() syscall.Errno {
-		// mygetpwnam_r is a wrapper around getpwnam_r to avoid
-		// passing a size_t to getpwnam_r, because for unknown
-		// reasons passing a size_t to getpwnam_r doesn't work on
-		// Solaris.
-		return syscall.Errno(C.mygetpwnam_r((*C.char)(unsafe.Pointer(&nameC[0])),
-			&pwd,
-			(*C.char)(buf.ptr),
-			C.size_t(buf.size),
-			&result))
-	})
-	if err != nil {
-		return nil, fmt.Errorf("user: lookup username %s: %v", username, err)
-	}
-	if result == nil {
-		return nil, UnknownUserError(username)
-	}
-	return buildUser(&pwd), err
-}
-
-func buildUser(pwd *C.struct_passwd) *User {
-	u := &User{
-		Uid:      strconv.FormatUint(uint64(pwd.pw_uid), 10),
-		Gid:      strconv.FormatUint(uint64(pwd.pw_gid), 10),
-		Username: C.GoString(pwd.pw_name),
-		Name:     C.GoString(pwd.pw_gecos),
-		HomeDir:  C.GoString(pwd.pw_dir),
-		/****************** Begin added code ******************/
-		Shell: C.GoString(pwd.pw_shell),
-		/****************** End added code ******************/
-	}
-	// The pw_gecos field isn't quite standardized. Some docs
-	// say: "It is expected to be a comma separated list of
-	// personal data where the first item is the full name of the
-	// user."
-	if i := strings.Index(u.Name, ","); i >= 0 {
-		u.Name = u.Name[:i]
-	}
-	return u
-}
-
-type bufferKind C.int
-
-const (
-	userBuffer = bufferKind(C._SC_GETPW_R_SIZE_MAX)
-)
-
-func (k bufferKind) initialSize() C.size_t {
-	sz := C.sysconf(C.int(k))
-	if sz == -1 {
-		// DragonFly and FreeBSD do not have _SC_GETPW_R_SIZE_MAX.
-		// Additionally, not all Linux systems have it, either. For
-		// example, the musl libc returns -1.
-		return 1024
-	}
-	if !isSizeReasonable(int64(sz)) {
-		// Truncate.  If this truly isn't enough, retryWithBuffer will error on the first run.
-		return maxBufferSize
-	}
-	return C.size_t(sz)
-}
-
-type memBuffer struct {
-	ptr  unsafe.Pointer
-	size C.size_t
-}
-
-func alloc(kind bufferKind) *memBuffer {
-	sz := kind.initialSize()
-	return &memBuffer{
-		ptr:  C.malloc(sz),
-		size: sz,
-	}
-}
-
-func (mb *memBuffer) resize(newSize C.size_t) {
-	mb.ptr = C.realloc(mb.ptr, newSize)
-	mb.size = newSize
-}
-
-func (mb *memBuffer) free() {
-	C.free(mb.ptr)
-}
-
-// retryWithBuffer repeatedly calls f(), increasing the size of the
-// buffer each time, until f succeeds, fails with a non-ERANGE error,
-// or the buffer exceeds a reasonable limit.
-func retryWithBuffer(buf *memBuffer, f func() syscall.Errno) error {
-	for {
-		errno := f()
-		if errno == 0 {
-			return nil
-		} else if errno != syscall.ERANGE {
-			return errno
-		}
-		newSize := buf.size * 2
-		if !isSizeReasonable(int64(newSize)) {
-			return fmt.Errorf("internal buffer exceeds %d bytes", maxBufferSize)
-		}
-		buf.resize(newSize)
-	}
-}
-
-const maxBufferSize = 1 << 20
-
-func isSizeReasonable(sz int64) bool {
-	return sz > 0 && sz <= maxBufferSize
-}
@@ -19,46 +19,44 @@ import (
 )

 const (
-	rsaFilename   = "ssh_host_rsa_key"
-	ecdsaFilename = "ssh_host_ecdsa_key"
+	rsaFilename       = "ssh_host_rsa_key"
+	ecdsaFilename     = "ssh_host_ecdsa_key"
 )

-func (s *SSHServer) configureHostKeys() error {
-	if _, err := os.Stat(systemConfigPath); os.IsNotExist(err) {
-		if err := os.MkdirAll(systemConfigPath, 0755); err != nil {
-			return errors.Wrap(err, fmt.Sprintf("Error creating %s directory", systemConfigPath))
+var defaultHostKeyDir = filepath.Join(".cloudflared", "host_keys")
+
+func (s *SSHProxy) configureHostKeys(hostKeyDir string) error {
+	if hostKeyDir == "" {
+		homeDir, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+		hostKeyDir = filepath.Join(homeDir, defaultHostKeyDir)
+	}
+
+	if _, err := os.Stat(hostKeyDir); os.IsNotExist(err) {
+		if err := os.MkdirAll(hostKeyDir, 0755); err != nil {
+			return errors.Wrap(err, fmt.Sprintf("Error creating %s directory", hostKeyDir))
 		}
 	}

-	if err := s.configureHostKey(s.ensureECDSAKeyExists); err != nil {
+	if err := s.configureECDSAKey(hostKeyDir); err != nil {
 		return err
 	}

-	if err := s.configureHostKey(s.ensureRSAKeyExists); err != nil {
+	if err := s.configureRSAKey(hostKeyDir); err != nil {
 		return err
 	}

 	return nil
 }

-func (s *SSHServer) configureHostKey(keyFunc func() (string, error)) error {
-	path, err := keyFunc()
-	if err != nil {
-		return err
-	}
-
-	if err := s.SetOption(ssh.HostKeyFile(path)); err != nil {
-		return errors.Wrap(err, "Could not set SSH host key")
-	}
-	return nil
-}
-
-func (s *SSHServer) ensureRSAKeyExists() (string, error) {
-	keyPath := filepath.Join(systemConfigPath, rsaFilename)
+func (s *SSHProxy) configureRSAKey(basePath string) error {
+	keyPath := filepath.Join(basePath, rsaFilename)
 	if _, err := os.Stat(keyPath); os.IsNotExist(err) {
 		key, err := rsa.GenerateKey(rand.Reader, 2048)
 		if err != nil {
-			return "", errors.Wrap(err, "Error generating RSA host key")
+			return errors.Wrap(err, "Error generating RSA host key")
 		}

 		privateKey := &pem.Block{
@@ -67,25 +65,28 @@ func (s *SSHServer) ensureRSAKeyExists() (string, error) {
 		}

 		if err = writePrivateKey(keyPath, privateKey); err != nil {
-			return "", err
+			return err
 		}

 		s.logger.Debug("Created new RSA SSH host key: ", keyPath)
 	}
-	return keyPath, nil
+	if err := s.SetOption(ssh.HostKeyFile(keyPath)); err != nil {
+		return errors.Wrap(err, "Could not set SSH RSA host key")
+	}
+	return nil
 }

-func (s *SSHServer) ensureECDSAKeyExists() (string, error) {
-	keyPath := filepath.Join(systemConfigPath, ecdsaFilename)
+func (s *SSHProxy) configureECDSAKey(basePath string) error {
+	keyPath := filepath.Join(basePath, ecdsaFilename)
 	if _, err := os.Stat(keyPath); os.IsNotExist(err) {
 		key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
 		if err != nil {
-			return "", errors.Wrap(err, "Error generating ECDSA host key")
+			return errors.Wrap(err, "Error generating ECDSA host key")
 		}

 		keyBytes, err := x509.MarshalECPrivateKey(key)
 		if err != nil {
-			return "", errors.Wrap(err, "Error marshalling ECDSA key")
+			return errors.Wrap(err, "Error marshalling ECDSA key")
 		}

 		privateKey := &pem.Block{
@@ -94,12 +95,15 @@ func (s *SSHServer) ensureECDSAKeyExists() (string, error) {
 		}

 		if err = writePrivateKey(keyPath, privateKey); err != nil {
-			return "", err
+			return err
 		}

 		s.logger.Debug("Created new ECDSA SSH host key: ", keyPath)
 	}
-	return keyPath, nil
+	if err := s.SetOption(ssh.HostKeyFile(keyPath)); err != nil {
+		return errors.Wrap(err, "Could not set SSH ECDSA host key")
+	}
+	return nil
 }

 func writePrivateKey(keyPath string, privateKey *pem.Block) error {
@@ -0,0 +1,29 @@
+package sshserver
+
+import (
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestHasPort(t *testing.T) {
+	type testCase struct {
+		input          string
+		expectedOutput string
+	}
+
+	tests := []testCase{
+		{"localhost", "localhost:22"},
+		{"other.addr:22", "other.addr:22"},
+		{"[2001:db8::1]:8080", "[2001:db8::1]:8080"},
+		{"[::1]", "[::1]:22"},
+		{"2001:0db8:3c4d:0015:0000:0000:1a2f:1234", "[2001:0db8:3c4d:0015:0000:0000:1a2f:1234]:22"},
+		{"::1", "[::1]:22"},
+	}
+
+	for _, test := range tests {
+		out, err := canonicalizeDest(test.input)
+		require.Nil(t, err)
+		assert.Equal(t, test.expectedOutput, out)
+	}
+}
@@ -3,60 +3,110 @@
 package sshserver

 import (
-	"errors"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"encoding/binary"
+	"encoding/json"
 	"fmt"
 	"io"
-	"os"
-	"os/exec"
-	"os/user"
-	"strconv"
-	"syscall"
+	"net"
+	"runtime"
+	"strings"
 	"time"
-	"unsafe"

+	"github.com/cloudflare/cloudflared/sshgen"
 	"github.com/cloudflare/cloudflared/sshlog"
-
-	"github.com/creack/pty"
 	"github.com/gliderlabs/ssh"
 	"github.com/google/uuid"
+	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
+	gossh "golang.org/x/crypto/ssh"
 )

-type SSHServer struct {
+const (
+	auditEventStart       = "session_start"
+	auditEventStop        = "session_stop"
+	auditEventExec        = "exec"
+	auditEventScp         = "scp"
+	auditEventResize      = "resize"
+	auditEventShell       = "shell"
+	sshContextSessionID   = "sessionID"
+	sshContextEventLogger = "eventLogger"
+	sshContextPreamble    = "sshPreamble"
+	sshContextSSHClient   = "sshClient"
+	SSHPreambleLength     = 2
+	defaultSSHPort        = "22"
+)
+
+type auditEvent struct {
+	Event       string `json:"event,omitempty"`
+	EventType   string `json:"event_type,omitempty"`
+	SessionID   string `json:"session_id,omitempty"`
+	User        string `json:"user,omitempty"`
+	Login       string `json:"login,omitempty"`
+	Datetime    string `json:"datetime,omitempty"`
+	Hostname    string `json:"hostname,omitempty"`
+	Destination string `json:"destination,omitempty"`
+}
+
+// sshConn wraps the incoming net.Conn and a cleanup function
+// This is done to allow the outgoing SSH client to be retrieved and closed when the conn itself is closed.
+type sshConn struct {
+	net.Conn
+	cleanupFunc func()
+}
+
+// close calls the cleanupFunc before closing the conn
+func (c sshConn) Close() error {
+	c.cleanupFunc()
+	return c.Conn.Close()
+}
+
+type SSHProxy struct {
 	ssh.Server
-	logger      *logrus.Logger
-	shutdownC   chan struct{}
-	caCert      ssh.PublicKey
-	getUserFunc func(string) (*User, error)
-	logManager  sshlog.Manager
+	hostname   string
+	logger     *logrus.Logger
+	shutdownC  chan struct{}
+	caCert     ssh.PublicKey
+	logManager sshlog.Manager
 }

-func New(logManager sshlog.Manager, logger *logrus.Logger, address string, shutdownC chan struct{}, idleTimeout, maxTimeout time.Duration) (*SSHServer, error) {
-	currentUser, err := user.Current()
-	if err != nil {
-		return nil, err
-	}
-	if currentUser.Uid != "0" {
-		return nil, errors.New("cloudflared SSH server needs to run as root")
+type SSHPreamble struct {
+	Destination string
+	JWT         string
+}
+
+// New creates a new SSHProxy and configures its host keys and authentication by the data provided
+func New(logManager sshlog.Manager, logger *logrus.Logger, version, localAddress, hostname, hostKeyDir string, shutdownC chan struct{}, idleTimeout, maxTimeout time.Duration) (*SSHProxy, error) {
+	sshProxy := SSHProxy{
+		hostname:   hostname,
+		logger:     logger,
+		shutdownC:  shutdownC,
+		logManager: logManager,
 	}

-	sshServer := SSHServer{
-		Server:      ssh.Server{Addr: address, MaxTimeout: maxTimeout, IdleTimeout: idleTimeout},
-		logger:      logger,
-		shutdownC:   shutdownC,
-		getUserFunc: lookupUser,
-		logManager:  logManager,
+	sshProxy.Server = ssh.Server{
+		Addr:             localAddress,
+		MaxTimeout:       maxTimeout,
+		IdleTimeout:      idleTimeout,
+		Version:          fmt.Sprintf("SSH-2.0-Cloudflare-Access_%s_%s", version, runtime.GOOS),
+		PublicKeyHandler: sshProxy.proxyAuthCallback,
+		ConnCallback:     sshProxy.connCallback,
+		ChannelHandlers: map[string]ssh.ChannelHandler{
+			"default": sshProxy.channelHandler,
+		},
 	}

-	if err := sshServer.configureHostKeys(); err != nil {
+	if err := sshProxy.configureHostKeys(hostKeyDir); err != nil {
 		return nil, err
 	}

-	sshServer.configureAuthentication()
-	return &sshServer, nil
+	return &sshProxy, nil
 }

-func (s *SSHServer) Start() error {
+// Start the SSH proxy listener to start handling SSH connections from clients
+func (s *SSHProxy) Start() error {
 	s.logger.Infof("Starting SSH server at %s", s.Addr)

 	go func() {
@@ -66,162 +116,375 @@ func (s *SSHServer) Start() error {
 		}
 	}()

-	s.Handle(s.connectionHandler)
 	return s.ListenAndServe()
 }

-func (s *SSHServer) connectionHandler(session ssh.Session) {
-	sessionID, err := uuid.NewRandom()
+// proxyAuthCallback attempts to connect to ultimate SSH destination. If successful, it allows the incoming connection
+// to connect to the proxy and saves the outgoing SSH client to the context. Otherwise, no connection to the
+// the proxy is allowed.
+func (s *SSHProxy) proxyAuthCallback(ctx ssh.Context, key ssh.PublicKey) bool {
+	client, err := s.dialDestination(ctx)
 	if err != nil {
-		if _, err := io.WriteString(session, "Failed to generate session ID\n"); err != nil {
-			s.logger.WithError(err).Error("Failed to generate session ID: Failed to write to SSH session")
+		return false
+	}
+	ctx.SetValue(sshContextSSHClient, client)
+	return true
+}
+
+// connCallback reads the preamble sent from the proxy server and saves an audit event logger to the context.
+// If any errors occur, the connection is terminated by returning nil from the callback.
+func (s *SSHProxy) connCallback(ctx ssh.Context, conn net.Conn) net.Conn {
+	// AUTH-2050: This is a temporary workaround of a timing issue in the tunnel muxer to allow further testing.
+	// TODO: Remove this
+	time.Sleep(10 * time.Millisecond)
+
+	preamble, err := s.readPreamble(conn)
+	if err != nil {
+		if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
+			s.logger.Warn("Could not establish session. Client likely does not have --destination set and is using old-style ssh config")
+		} else if err != io.EOF {
+			s.logger.WithError(err).Error("failed to read SSH preamble")
 		}
-		s.CloseSession(session)
+		return nil
 	}
+	ctx.SetValue(sshContextPreamble, preamble)

-	// Get uid and gid of user attempting to login
-	sshUser, ok := session.Context().Value("sshUser").(*User)
-	if !ok || sshUser == nil {
-		s.logger.Error("Error retrieving credentials from session")
-		s.CloseSession(session)
-		return
-	}
-
-	uidInt, err := stringToUint32(sshUser.Uid)
+	logger, sessionID, err := s.auditLogger()
 	if err != nil {
-		s.logger.WithError(err).Error("Invalid user")
-		s.CloseSession(session)
-		return
-	}
-	gidInt, err := stringToUint32(sshUser.Gid)
-	if err != nil {
-		s.logger.WithError(err).Error("Invalid user group")
-		s.CloseSession(session)
-		return
+		s.logger.WithError(err).Error("failed to configure logger")
+		return nil
 	}
+	ctx.SetValue(sshContextEventLogger, logger)
+	ctx.SetValue(sshContextSessionID, sessionID)

-	// Spawn shell under user
-	var cmd *exec.Cmd
-	if session.RawCommand() != "" {
-		cmd = exec.Command(sshUser.Shell, "-c", session.RawCommand())
-	} else {
-		cmd = exec.Command(sshUser.Shell)
-	}
-	// Supplementary groups are not explicitly specified. They seem to be inherited by default.
-	cmd.SysProcAttr = &syscall.SysProcAttr{Credential: &syscall.Credential{Uid: uidInt, Gid: gidInt}, Setsid: true}
-	cmd.Env = append(cmd.Env, session.Environ()...)
-	cmd.Env = append(cmd.Env, fmt.Sprintf("USER=%s", sshUser.Username))
-	cmd.Env = append(cmd.Env, fmt.Sprintf("HOME=%s", sshUser.HomeDir))
-	cmd.Dir = sshUser.HomeDir
-
-	ptyReq, winCh, isPty := session.Pty()
-	var shellInput io.WriteCloser
-	var shellOutput io.ReadCloser
-
-	if isPty {
-		cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term))
-		shellInput, shellOutput, err = s.startPtySession(cmd, winCh)
-		if err != nil {
-			s.logger.WithError(err).Error("Failed to start pty session")
-			close(s.shutdownC)
-			return
-		}
-	} else {
-		shellInput, shellOutput, err = s.startNonPtySession(cmd)
-		if err != nil {
-			s.logger.WithError(err).Error("Failed to start non-pty session")
-			close(s.shutdownC)
-			return
+	// attempts to retrieve and close the outgoing ssh client when the incoming conn is closed.
+	// If no client exists, the conn is being closed before the PublicKeyCallback was called (where the client is created).
+	cleanupFunc := func() {
+		client, ok := ctx.Value(sshContextSSHClient).(*gossh.Client)
+		if ok && client != nil {
+			client.Close()
 		}
 	}

-	// Write incoming commands to shell
+	return sshConn{conn, cleanupFunc}
+}
+
+// channelHandler proxies incoming and outgoing SSH traffic back and forth over an SSH Channel
+func (s *SSHProxy) channelHandler(srv *ssh.Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx ssh.Context) {
+	if newChan.ChannelType() != "session" && newChan.ChannelType() != "direct-tcpip" {
+		msg := fmt.Sprintf("channel type %s is not supported", newChan.ChannelType())
+		s.logger.Info(msg)
+		if err := newChan.Reject(gossh.UnknownChannelType, msg); err != nil {
+			s.logger.WithError(err).Error("Error rejecting SSH channel")
+		}
+		return
+	}
+
+	localChan, localChanReqs, err := newChan.Accept()
+	if err != nil {
+		s.logger.WithError(err).Error("Failed to accept session channel")
+		return
+	}
+	defer localChan.Close()
+
+	// client will be closed when the sshConn is closed
+	client, ok := ctx.Value(sshContextSSHClient).(*gossh.Client)
+	if !ok {
+		s.logger.Error("Could not retrieve client from context")
+		return
+	}
+
+	remoteChan, remoteChanReqs, err := client.OpenChannel(newChan.ChannelType(), newChan.ExtraData())
+	if err != nil {
+		s.logger.WithError(err).Error("Failed to open remote channel")
+		return
+	}
+
+	defer remoteChan.Close()
+
+	// Proxy ssh traffic back and forth between client and destination
+	s.proxyChannel(localChan, remoteChan, localChanReqs, remoteChanReqs, conn, ctx)
+}
+
+// proxyChannel couples two SSH channels and proxies SSH traffic and channel requests back and forth.
+func (s *SSHProxy) proxyChannel(localChan, remoteChan gossh.Channel, localChanReqs, remoteChanReqs <-chan *gossh.Request, conn *gossh.ServerConn, ctx ssh.Context) {
+	done := make(chan struct{}, 2)
 	go func() {
-		if _, err := io.Copy(shellInput, session); err != nil {
-			s.logger.WithError(err).Error("Failed to write incoming command to pty")
+		if _, err := io.Copy(localChan, remoteChan); err != nil {
+			s.logger.WithError(err).Error("remote to local copy error")
+		}
+		done <- struct{}{}
+	}()
+	go func() {
+		if _, err := io.Copy(remoteChan, localChan); err != nil {
+			s.logger.WithError(err).Error("local to remote copy error")
+		}
+		done <- struct{}{}
+	}()
+
+	// stderr streams are used non-pty sessions since they have distinct IO streams.
+	remoteStderr := remoteChan.Stderr()
+	localStderr := localChan.Stderr()
+	go func() {
+		if _, err := io.Copy(remoteStderr, localStderr); err != nil {
+			s.logger.WithError(err).Error("stderr local to remote copy error")
+		}
+	}()
+	go func() {
+		if _, err := io.Copy(localStderr, remoteStderr); err != nil {
+			s.logger.WithError(err).Error("stderr remote to local copy error")
 		}
 	}()

-	pr, pw := io.Pipe()
-	defer pr.Close()
-	defer pw.Close()
+	s.logAuditEvent(conn, "", auditEventStart, ctx)
+	defer s.logAuditEvent(conn, "", auditEventStop, ctx)

-	logger, err := s.logManager.NewLogger(fmt.Sprintf("%s-session.log", sessionID), s.logger)
-	if err != nil {
-		if _, err := io.WriteString(session, "Failed to create log\n"); err != nil {
-			s.logger.WithError(err).Error("Failed to create log: Failed to write to SSH session")
-		}
-		s.CloseSession(session)
-	}
-	defer logger.Close()
-	go func() {
-		io.Copy(logger, pr)
-	}()
-
-	// Write outgoing command output to both the command recorder, and remote user
-	mw := io.MultiWriter(pw, session)
-	if _, err := io.Copy(mw, shellOutput); err != nil {
-		s.logger.WithError(err).Error("Failed to write command output to user")
-	}
-
-	// Wait for all resources associated with cmd to be released
-	// Returns error if shell exited with a non-zero status or received a signal
-	if err := cmd.Wait(); err != nil {
-		s.logger.WithError(err).Debug("Shell did not close correctly")
-	}
-}
-
-func (s *SSHServer) CloseSession(session ssh.Session) {
-	if err := session.Exit(1); err != nil {
-		s.logger.WithError(err).Error("Failed to close SSH session")
-	}
-}
-
-func (s *SSHServer) startNonPtySession(cmd *exec.Cmd) (io.WriteCloser, io.ReadCloser, error) {
-	in, err := cmd.StdinPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-	out, err := cmd.StdoutPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-	cmd.Stderr = cmd.Stdout
-	if err = cmd.Start(); err != nil {
-		return nil, nil, err
-	}
-	return in, out, nil
-}
-
-func (s *SSHServer) startPtySession(cmd *exec.Cmd, winCh <-chan ssh.Window) (io.WriteCloser, io.ReadCloser, error) {
-	tty, err := pty.Start(cmd)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// Handle terminal window size changes
-	go func() {
-		for win := range winCh {
-			if errNo := setWinsize(tty, win.Width, win.Height); errNo != 0 {
-				s.logger.WithError(err).Error("Failed to set pty window size")
-				close(s.shutdownC)
+	// Proxy channel requests
+	for {
+		select {
+		case req := <-localChanReqs:
+			if req == nil {
 				return
 			}
+			if err := s.forwardChannelRequest(remoteChan, req); err != nil {
+				s.logger.WithError(err).Error("Failed to forward request")
+				return
+			}
+
+			s.logChannelRequest(req, conn, ctx)
+
+		case req := <-remoteChanReqs:
+			if req == nil {
+				return
+			}
+			if err := s.forwardChannelRequest(localChan, req); err != nil {
+				s.logger.WithError(err).Error("Failed to forward request")
+				return
+			}
+		case <-done:
+			return
+		}
+	}
+}
+
+// readPreamble reads a preamble from the SSH connection before any SSH traffic is sent.
+// This preamble is a JSON encoded struct containing the users JWT and ultimate destination.
+// The first 4 bytes contain the length of the preamble which follows immediately.
+func (s *SSHProxy) readPreamble(conn net.Conn) (*SSHPreamble, error) {
+	// Set conn read deadline while reading preamble to prevent hangs if preamble wasnt sent.
+	if err := conn.SetReadDeadline(time.Now().Add(500 * time.Millisecond)); err != nil {
+		return nil, errors.Wrap(err, "failed to set conn deadline")
+	}
+	defer func() {
+		if err := conn.SetReadDeadline(time.Time{}); err != nil {
+			s.logger.WithError(err).Error("Failed to unset conn read deadline")
 		}
 	}()

-	return tty, tty, nil
+	size := make([]byte, SSHPreambleLength)
+	if _, err := io.ReadFull(conn, size); err != nil {
+		return nil, err
+	}
+	payloadLength := binary.BigEndian.Uint16(size)
+	payload := make([]byte, payloadLength)
+	if _, err := io.ReadFull(conn, payload); err != nil {
+		return nil, err
+	}
+
+	var preamble SSHPreamble
+	err := json.Unmarshal(payload, &preamble)
+	if err != nil {
+		return nil, err
+	}
+
+	preamble.Destination, err = canonicalizeDest(preamble.Destination)
+	if err != nil {
+		return nil, err
+	}
+	return &preamble, nil
 }

-// Sets PTY window size for terminal
-func setWinsize(f *os.File, w, h int) syscall.Errno {
-	_, _, errNo := syscall.Syscall(syscall.SYS_IOCTL, f.Fd(), uintptr(syscall.TIOCSWINSZ),
-		uintptr(unsafe.Pointer(&struct{ h, w, x, y uint16 }{uint16(h), uint16(w), 0, 0})))
-	return errNo
+// canonicalizeDest adds a default port if one doesnt exist
+func canonicalizeDest(dest string) (string, error) {
+	_, _, err := net.SplitHostPort(dest)
+	// if host and port are split without error, a port exists.
+	if err != nil {
+		addrErr, ok := err.(*net.AddrError)
+		if !ok {
+			return "", err
+		}
+		// If the port is missing, append it.
+		if addrErr.Err == "missing port in address" {
+			return fmt.Sprintf("%s:%s", dest, defaultSSHPort), nil
+		}
+
+		// If there are too many colons and address is IPv6, wrap in brackets and append port. Otherwise invalid address
+		ip := net.ParseIP(dest)
+		if addrErr.Err == "too many colons in address" && ip != nil && ip.To4() == nil {
+			return fmt.Sprintf("[%s]:%s", dest, defaultSSHPort), nil
+		}
+		return "", addrErr
+	}
+
+	return dest, nil
 }

-func stringToUint32(str string) (uint32, error) {
-	uid, err := strconv.ParseUint(str, 10, 32)
-	return uint32(uid), err
+// dialDestination creates a new SSH client and dials the destination server
+func (s *SSHProxy) dialDestination(ctx ssh.Context) (*gossh.Client, error) {
+	preamble, ok := ctx.Value(sshContextPreamble).(*SSHPreamble)
+	if !ok {
+		msg := "failed to retrieve SSH preamble from context"
+		s.logger.Error(msg)
+		return nil, errors.New(msg)
+	}

+	signer, err := s.genSSHSigner(preamble.JWT)
+	if err != nil {
+		s.logger.WithError(err).Error("Failed to generate signed short lived cert")
+		return nil, err
+	}
+	s.logger.Debugf("Short lived certificate for %s connecting to %s:\n\n%s", ctx.User(), preamble.Destination, gossh.MarshalAuthorizedKey(signer.PublicKey()))
+
+	clientConfig := &gossh.ClientConfig{
+		User: ctx.User(),
+		// AUTH-2103 TODO: proper host key check
+		HostKeyCallback: gossh.InsecureIgnoreHostKey(),
+		Auth:            []gossh.AuthMethod{gossh.PublicKeys(signer)},
+		ClientVersion:   ctx.ServerVersion(),
+	}
+
+	client, err := gossh.Dial("tcp", preamble.Destination, clientConfig)
+	if err != nil {
+		s.logger.WithError(err).Info("Failed to connect to destination SSH server")
+		return nil, err
+	}
+	return client, nil
+}
+
+// Generates a key pair and sends public key to get signed by CA
+func (s *SSHProxy) genSSHSigner(jwt string) (gossh.Signer, error) {
+	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to generate ecdsa key pair")
+	}
+
+	pub, err := gossh.NewPublicKey(&key.PublicKey)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to convert ecdsa public key to SSH public key")
+	}
+
+	pubBytes := gossh.MarshalAuthorizedKey(pub)
+	signedCertBytes, err := sshgen.SignCert(jwt, string(pubBytes))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to retrieve cert from SSHCAAPI")
+	}
+
+	signedPub, _, _, _, err := gossh.ParseAuthorizedKey([]byte(signedCertBytes))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to parse SSH public key")
+	}
+
+	cert, ok := signedPub.(*gossh.Certificate)
+	if !ok {
+		return nil, errors.Wrap(err, "failed to assert public key as certificate")
+	}
+	signer, err := gossh.NewSignerFromKey(key)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to create signer")
+	}
+
+	certSigner, err := gossh.NewCertSigner(cert, signer)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to create cert signer")
+	}
+	return certSigner, nil
+}
+
+// forwardChannelRequest sends request req to SSH channel sshChan, waits for reply, and sends the reply back.
+func (s *SSHProxy) forwardChannelRequest(sshChan gossh.Channel, req *gossh.Request) error {
+	reply, err := sshChan.SendRequest(req.Type, req.WantReply, req.Payload)
+	if err != nil {
+		return errors.Wrap(err, "Failed to send request")
+	}
+	if err := req.Reply(reply, nil); err != nil {
+		return errors.Wrap(err, "Failed to reply to request")
+	}
+	return nil
+}
+
+// logChannelRequest creates an audit log for different types of channel requests
+func (s *SSHProxy) logChannelRequest(req *gossh.Request, conn *gossh.ServerConn, ctx ssh.Context) {
+	var eventType string
+	var event string
+	switch req.Type {
+	case "exec":
+		var payload struct{ Value string }
+		if err := gossh.Unmarshal(req.Payload, &payload); err != nil {
+			s.logger.WithError(err).Errorf("Failed to unmarshal channel request payload: %s:%s", req.Type, req.Payload)
+		}
+		event = payload.Value
+
+		eventType = auditEventExec
+		if strings.HasPrefix(string(req.Payload), "scp") {
+			eventType = auditEventScp
+		}
+	case "shell":
+		eventType = auditEventShell
+	case "window-change":
+		eventType = auditEventResize
+	default:
+		return
+	}
+	s.logAuditEvent(conn, event, eventType, ctx)
+}
+
+func (s *SSHProxy) auditLogger() (io.WriteCloser, string, error) {
+	sessionUUID, err := uuid.NewRandom()
+	if err != nil {
+		return nil, "", errors.Wrap(err, "failed to create sessionID")
+	}
+	sessionID := sessionUUID.String()
+
+	writer, err := s.logManager.NewLogger(fmt.Sprintf("%s-event.log", sessionID), s.logger)
+	if err != nil {
+		return nil, "", errors.Wrap(err, "failed to create logger")
+	}
+	return writer, sessionID, nil
+}
+
+func (s *SSHProxy) logAuditEvent(conn *gossh.ServerConn, event, eventType string, ctx ssh.Context) {
+	sessionID, sessionIDOk := ctx.Value(sshContextSessionID).(string)
+	writer, writerOk := ctx.Value(sshContextEventLogger).(io.WriteCloser)
+	if !writerOk || !sessionIDOk {
+		s.logger.Error("Failed to retrieve audit logger from context")
+		return
+	}
+
+	var destination string
+	preamble, ok := ctx.Value(sshContextPreamble).(*SSHPreamble)
+	if ok {
+		destination = preamble.Destination
+	} else {
+		s.logger.Error("Failed to retrieve SSH preamble from context")
+	}
+
+	ae := auditEvent{
+		Event:       event,
+		EventType:   eventType,
+		SessionID:   sessionID,
+		User:        conn.User(),
+		Login:       conn.User(),
+		Datetime:    time.Now().UTC().Format(time.RFC3339),
+		Hostname:    s.hostname,
+		Destination: destination,
+	}
+	data, err := json.Marshal(&ae)
+	if err != nil {
+		s.logger.WithError(err).Error("Failed to marshal audit event. malformed audit object")
+		return
+	}
+	line := string(data) + "\n"
+	if _, err := writer.Write([]byte(line)); err != nil {
+		s.logger.WithError(err).Error("Failed to write audit event.")
+	}
 }
@@ -11,9 +11,16 @@ import (
 	"github.com/sirupsen/logrus"
 )

+const SSHPreambleLength = 2
+
 type SSHServer struct{}

-func New(_ sshlog.Manager, _ *logrus.Logger, _ string, _ chan struct{}, _, _ time.Duration) (*SSHServer, error) {
+type SSHPreamble struct {
+	Destination string
+	JWT         string
+}
+
+func New(_ sshlog.Manager, _ *logrus.Logger, _, _, _, _ string, _ chan struct{}, _, _ time.Duration) (*SSHServer, error) {
 	return nil, errors.New("cloudflared ssh server is not supported on windows")
 }

@@ -35,26 +35,49 @@ func createRequest(stream *h2mux.MuxedStream, url *url.URL) (*http.Request, erro
 	return req, nil
 }

+// H2RequestHeadersToH1Request converts the HTTP/2 headers to an HTTP/1 Request
+// object. This includes conversion of the pseudo-headers into their closest
+// HTTP/1 equivalents. See https://tools.ietf.org/html/rfc7540#section-8.1.2.3
 func H2RequestHeadersToH1Request(h2 []h2mux.Header, h1 *http.Request) error {
 	for _, header := range h2 {
 		switch header.Name {
 		case ":method":
 			h1.Method = header.Value
 		case ":scheme":
+			// noop - use the preexisting scheme from h1.URL
 		case ":authority":
 			// Otherwise the host header will be based on the origin URL
 			h1.Host = header.Value
 		case ":path":
-			u, err := url.Parse(header.Value)
+			// We don't want to be an "opinionated" proxy, so ideally we would use :path as-is.
+			// However, this HTTP/1 Request object belongs to the Go standard library,
+			// whose URL package makes some opinionated decisions about the encoding of
+			// URL characters: see the docs of https://godoc.org/net/url#URL,
+			// in particular the EscapedPath method https://godoc.org/net/url#URL.EscapedPath,
+			// which is always used when computing url.URL.String(), whether we'd like it or not.
+			//
+			// Well, not *always*. We could circumvent this by using url.URL.Opaque. But
+			// that would present unusual difficulties when using an HTTP proxy: url.URL.Opaque
+			// is treated differently when HTTP_PROXY is set!
+			// See https://github.com/golang/go/issues/5684#issuecomment-66080888
+			//
+			// This means we are subject to the behavior of net/url's function `shouldEscape`
+			// (as invoked with mode=encodePath): https://github.com/golang/go/blob/go1.12.7/src/net/url/url.go#L101
+
+			if header.Value == "*" {
+				h1.URL.Path = "*"
+				continue
+			}
+			// Due to the behavior of validation.ValidateUrl, h1.URL may
+			// already have a partial value, with or without a trailing slash.
+			base := h1.URL.String()
+			base = strings.TrimRight(base, "/")
+			// But we know :path begins with '/', because we handled '*' above - see RFC7540
+			url, err := url.Parse(base + header.Value)
 			if err != nil {
-				return fmt.Errorf("unparseable path")
+				return errors.Wrap(err, fmt.Sprintf("invalid path '%v'", header.Value))
 			}
-			resolved := h1.URL.ResolveReference(u)
-			// prevent escaping base URL
-			if !strings.HasPrefix(resolved.String(), h1.URL.String()) {
-				return fmt.Errorf("invalid path")
-			}
-			h1.URL = resolved
+			h1.URL = url
 		case "content-length":
 			contentLength, err := strconv.ParseInt(header.Value, 10, 64)
 			if err != nil {
@@ -0,0 +1,441 @@
+package streamhandler
+
+import (
+	"fmt"
+	"math/rand"
+	"net/http"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strings"
+	"testing"
+	"testing/quick"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestH2RequestHeadersToH1Request_RegularHeaders(t *testing.T) {
+	request, err := http.NewRequest(http.MethodGet, "http://example.com", nil)
+	assert.NoError(t, err)
+
+	headersConversionErr := H2RequestHeadersToH1Request(
+		[]h2mux.Header{
+			h2mux.Header{
+				Name:  "Mock header 1",
+				Value: "Mock value 1",
+			},
+			h2mux.Header{
+				Name:  "Mock header 2",
+				Value: "Mock value 2",
+			},
+		},
+		request,
+	)
+
+	assert.Equal(t, http.Header{
+		"Mock header 1": []string{"Mock value 1"},
+		"Mock header 2": []string{"Mock value 2"},
+	}, request.Header)
+
+	assert.NoError(t, headersConversionErr)
+}
+
+func TestH2RequestHeadersToH1Request_NoHeaders(t *testing.T) {
+	request, err := http.NewRequest(http.MethodGet, "http://example.com", nil)
+	assert.NoError(t, err)
+
+	headersConversionErr := H2RequestHeadersToH1Request(
+		[]h2mux.Header{},
+		request,
+	)
+
+	assert.Equal(t, http.Header{}, request.Header)
+
+	assert.NoError(t, headersConversionErr)
+}
+
+func TestH2RequestHeadersToH1Request_InvalidHostPath(t *testing.T) {
+	request, err := http.NewRequest(http.MethodGet, "http://example.com", nil)
+	assert.NoError(t, err)
+
+	headersConversionErr := H2RequestHeadersToH1Request(
+		[]h2mux.Header{
+			h2mux.Header{
+				Name:  ":path",
+				Value: "//bad_path/",
+			},
+			h2mux.Header{
+				Name:  "Mock header",
+				Value: "Mock value",
+			},
+		},
+		request,
+	)
+
+	assert.Equal(t, http.Header{
+		"Mock header": []string{"Mock value"},
+	}, request.Header)
+
+	assert.Equal(t, "http://example.com//bad_path/", request.URL.String())
+
+	assert.NoError(t, headersConversionErr)
+}
+
+func TestH2RequestHeadersToH1Request_HostPathWithQuery(t *testing.T) {
+	request, err := http.NewRequest(http.MethodGet, "http://example.com/", nil)
+	assert.NoError(t, err)
+
+	headersConversionErr := H2RequestHeadersToH1Request(
+		[]h2mux.Header{
+			h2mux.Header{
+				Name:  ":path",
+				Value: "/?query=mock%20value",
+			},
+			h2mux.Header{
+				Name:  "Mock header",
+				Value: "Mock value",
+			},
+		},
+		request,
+	)
+
+	assert.Equal(t, http.Header{
+		"Mock header": []string{"Mock value"},
+	}, request.Header)
+
+	assert.Equal(t, "http://example.com/?query=mock%20value", request.URL.String())
+
+	assert.NoError(t, headersConversionErr)
+}
+
+func TestH2RequestHeadersToH1Request_HostPathWithURLEncoding(t *testing.T) {
+	request, err := http.NewRequest(http.MethodGet, "http://example.com/", nil)
+	assert.NoError(t, err)
+
+	headersConversionErr := H2RequestHeadersToH1Request(
+		[]h2mux.Header{
+			h2mux.Header{
+				Name:  ":path",
+				Value: "/mock%20path",
+			},
+			h2mux.Header{
+				Name:  "Mock header",
+				Value: "Mock value",
+			},
+		},
+		request,
+	)
+
+	assert.Equal(t, http.Header{
+		"Mock header": []string{"Mock value"},
+	}, request.Header)
+
+	assert.Equal(t, "http://example.com/mock%20path", request.URL.String())
+
+	assert.NoError(t, headersConversionErr)
+}
+
+func TestH2RequestHeadersToH1Request_WeirdURLs(t *testing.T) {
+	type testCase struct {
+		path string
+		want string
+	}
+	testCases := []testCase{
+		{
+			path: "",
+			want: "",
+		},
+		{
+			path: "/",
+			want: "/",
+		},
+		{
+			path: "//",
+			want: "//",
+		},
+		{
+			path: "/test",
+			want: "/test",
+		},
+		{
+			path: "//test",
+			want: "//test",
+		},
+		{
+			// https://github.com/cloudflare/cloudflared/issues/81
+			path: "//test/",
+			want: "//test/",
+		},
+		{
+			path: "/%2Ftest",
+			want: "/%2Ftest",
+		},
+		{
+			path: "//%20test",
+			want: "//%20test",
+		},
+		{
+			// https://github.com/cloudflare/cloudflared/issues/124
+			path: "/test?get=somthing%20a",
+			want: "/test?get=somthing%20a",
+		},
+		{
+			path: "/%20",
+			want: "/%20",
+		},
+		{
+			// stdlib's EscapedPath() will always percent-encode ' '
+			path: "/ ",
+			want: "/%20",
+		},
+		{
+			path: "/ a ",
+			want: "/%20a%20",
+		},
+		{
+			path: "/a%20b",
+			want: "/a%20b",
+		},
+		{
+			path: "/foo/bar;param?query#frag",
+			want: "/foo/bar;param?query#frag",
+		},
+		{
+			// stdlib's EscapedPath() will always percent-encode non-ASCII chars
+			path: "/a␠b",
+			want: "/a%E2%90%A0b",
+		},
+		{
+			path: "/a-umlaut-ä",
+			want: "/a-umlaut-%C3%A4",
+		},
+		{
+			path: "/a-umlaut-%C3%A4",
+			want: "/a-umlaut-%C3%A4",
+		},
+		{
+			path: "/a-umlaut-%c3%a4",
+			want: "/a-umlaut-%c3%a4",
+		},
+		{
+			// here the second '#' is treated as part of the fragment
+			path: "/a#b#c",
+			want: "/a#b%23c",
+		},
+		{
+			path: "/a#b␠c",
+			want: "/a#b%E2%90%A0c",
+		},
+		{
+			path: "/a#b%20c",
+			want: "/a#b%20c",
+		},
+		{
+			path: "/a#b c",
+			want: "/a#b%20c",
+		},
+		{
+			// stdlib's EscapedPath() will always percent-encode '\'
+			path: "/\\",
+			want: "/%5C",
+		},
+		{
+			path: "/a\\",
+			want: "/a%5C",
+		},
+		{
+			path: "/a,b.c.",
+			want: "/a,b.c.",
+		},
+		{
+			path: "/.",
+			want: "/.",
+		},
+		{
+			// stdlib's EscapedPath() will always percent-encode '`'
+			path: "/a`",
+			want: "/a%60",
+		},
+		{
+			path: "/a[0]",
+			want: "/a[0]",
+		},
+		{
+			path: "/?a[0]=5 &b[]=",
+			want: "/?a[0]=5 &b[]=",
+		},
+		{
+			path: "/?a=%22b%20%22",
+			want: "/?a=%22b%20%22",
+		},
+	}
+
+	for index, testCase := range testCases {
+		requestURL := "https://example.com"
+
+		request, err := http.NewRequest(http.MethodGet, requestURL, nil)
+		assert.NoError(t, err)
+		headersConversionErr := H2RequestHeadersToH1Request(
+			[]h2mux.Header{
+				h2mux.Header{
+					Name:  ":path",
+					Value: testCase.path,
+				},
+				h2mux.Header{
+					Name:  "Mock header",
+					Value: "Mock value",
+				},
+			},
+			request,
+		)
+		assert.NoError(t, headersConversionErr)
+
+		assert.Equal(t,
+			http.Header{
+				"Mock header": []string{"Mock value"},
+			},
+			request.Header)
+
+		assert.Equal(t,
+			"https://example.com"+testCase.want,
+			request.URL.String(),
+			"Failed URL index: %v %#v", index, testCase)
+	}
+}
+
+func TestH2RequestHeadersToH1Request_QuickCheck(t *testing.T) {
+	config := &quick.Config{
+		Values: func(args []reflect.Value, rand *rand.Rand) {
+			args[0] = reflect.ValueOf(randomHTTP2Path(t, rand))
+		},
+	}
+
+	type testOrigin struct {
+		url string
+
+		expectedScheme   string
+		expectedBasePath string
+	}
+	testOrigins := []testOrigin{
+		{
+			url:              "http://origin.hostname.example.com:8080",
+			expectedScheme:   "http",
+			expectedBasePath: "http://origin.hostname.example.com:8080",
+		},
+		{
+			url:              "http://origin.hostname.example.com:8080/",
+			expectedScheme:   "http",
+			expectedBasePath: "http://origin.hostname.example.com:8080",
+		},
+		{
+			url:              "http://origin.hostname.example.com:8080/api",
+			expectedScheme:   "http",
+			expectedBasePath: "http://origin.hostname.example.com:8080/api",
+		},
+		{
+			url:              "http://origin.hostname.example.com:8080/api/",
+			expectedScheme:   "http",
+			expectedBasePath: "http://origin.hostname.example.com:8080/api",
+		},
+		{
+			url:              "https://origin.hostname.example.com:8080/api",
+			expectedScheme:   "https",
+			expectedBasePath: "https://origin.hostname.example.com:8080/api",
+		},
+	}
+
+	// use multiple schemes to demonstrate that the URL is based on the
+	// origin's scheme, not the :scheme header
+	for _, testScheme := range []string{"http", "https"} {
+		for _, testOrigin := range testOrigins {
+			assertion := func(testPath string) bool {
+				const expectedMethod = "POST"
+				const expectedHostname = "request.hostname.example.com"
+
+				h2 := []h2mux.Header{
+					h2mux.Header{Name: ":method", Value: expectedMethod},
+					h2mux.Header{Name: ":scheme", Value: testScheme},
+					h2mux.Header{Name: ":authority", Value: expectedHostname},
+					h2mux.Header{Name: ":path", Value: testPath},
+				}
+				h1, err := http.NewRequest("GET", testOrigin.url, nil)
+				require.NoError(t, err)
+
+				err = H2RequestHeadersToH1Request(h2, h1)
+				return assert.NoError(t, err) &&
+					assert.Equal(t, expectedMethod, h1.Method) &&
+					assert.Equal(t, expectedHostname, h1.Host) &&
+					assert.Equal(t, testOrigin.expectedScheme, h1.URL.Scheme) &&
+					assert.Equal(t, testOrigin.expectedBasePath+testPath, h1.URL.String())
+			}
+			err := quick.Check(assertion, config)
+			assert.NoError(t, err)
+		}
+	}
+}
+
+func randomASCIIPrintableChar(rand *rand.Rand) int {
+	// smallest printable ASCII char is 32, largest is 126
+	const startPrintable = 32
+	const endPrintable = 127
+	return startPrintable + rand.Intn(endPrintable-startPrintable)
+}
+
+// randomASCIIText generates an ASCII string, some of whose characters may be
+// percent-encoded. Its "logical length" (ignoring percent-encoding) is
+// between 1 and `maxLength`.
+func randomASCIIText(rand *rand.Rand, minLength int, maxLength int) string {
+	length := minLength + rand.Intn(maxLength)
+	result := ""
+	for i := 0; i < length; i++ {
+		c := randomASCIIPrintableChar(rand)
+
+		// 1/4 chance of using percent encoding when not necessary
+		if c == '%' || rand.Intn(4) == 0 {
+			result += fmt.Sprintf("%%%02X", c)
+		} else {
+			result += string(c)
+		}
+	}
+	return result
+}
+
+// Calls `randomASCIIText` and ensures the result is a valid URL path,
+// i.e. one that can pass unchanged through url.URL.String()
+func randomHTTP1Path(t *testing.T, rand *rand.Rand, minLength int, maxLength int) string {
+	text := randomASCIIText(rand, minLength, maxLength)
+	regexp, err := regexp.Compile("[^/;,]*")
+	require.NoError(t, err)
+	return "/" + regexp.ReplaceAllStringFunc(text, url.PathEscape)
+}
+
+// Calls `randomASCIIText` and ensures the result is a valid URL query,
+// i.e. one that can pass unchanged through url.URL.String()
+func randomHTTP1Query(t *testing.T, rand *rand.Rand, minLength int, maxLength int) string {
+	text := randomASCIIText(rand, minLength, maxLength)
+	return "?" + strings.ReplaceAll(text, "#", "%23")
+}
+
+// Calls `randomASCIIText` and ensures the result is a valid URL fragment,
+// i.e. one that can pass unchanged through url.URL.String()
+func randomHTTP1Fragment(t *testing.T, rand *rand.Rand, minLength int, maxLength int) string {
+	text := randomASCIIText(rand, minLength, maxLength)
+	url, err := url.Parse("#" + text)
+	require.NoError(t, err)
+	return url.String()
+}
+
+// Assemble a random :path pseudoheader that is legal by Go stdlib standards
+// (i.e. all characters will satisfy "net/url".shouldEscape for their respective locations)
+func randomHTTP2Path(t *testing.T, rand *rand.Rand) string {
+	result := randomHTTP1Path(t, rand, 1, 64)
+	if rand.Intn(2) == 1 {
+		result += randomHTTP1Query(t, rand, 1, 32)
+	}
+	if rand.Intn(2) == 1 {
+		result += randomHTTP1Fragment(t, rand, 1, 16)
+	}
+	return result
+}
@@ -93,7 +93,7 @@ func (s *StreamHandler) UpdateConfig(newConfig []*pogs.ReverseProxyConfig) (fail
 	toAdd := s.tunnelHostnameMapper.ToAdd(newConfig)
 	for _, tunnelConfig := range toAdd {
 		tunnelHostname := tunnelConfig.TunnelHostname
-		originSerice, err := tunnelConfig.OriginConfigJSONHandler.OriginConfig.Service()
+		originSerice, err := tunnelConfig.OriginConfig.Service()
 		if err != nil {
 			s.logger.WithField("tunnelHostname", tunnelHostname).WithError(err).Error("Invalid origin service config")
 			failedConfigs = append(failedConfigs, &pogs.FailedConfig{
@@ -49,10 +49,8 @@ func TestServeRequest(t *testing.T) {
 	reverseProxyConfigs := []*pogs.ReverseProxyConfig{
 		{
 			TunnelHostname: testTunnelHostname,
-			OriginConfigJSONHandler: &pogs.OriginConfigJSONHandler{
-				OriginConfig: &pogs.HTTPOriginConfig{
-					URLString: httpServer.URL,
-				},
+			OriginConfig: &pogs.HTTPOriginConfig{
+				URLString: httpServer.URL,
 			},
 		},
 	}
@@ -99,10 +97,8 @@ func TestServeBadRequest(t *testing.T) {
 	reverseProxyConfigs := []*pogs.ReverseProxyConfig{
 		{
 			TunnelHostname: testTunnelHostname,
-			OriginConfigJSONHandler: &pogs.OriginConfigJSONHandler{
-				OriginConfig: &pogs.HTTPOriginConfig{
-					URLString: "",
-				},
+			OriginConfig: &pogs.HTTPOriginConfig{
+				URLString: "",
 			},
 		},
 	}
@@ -145,7 +141,7 @@ type DefaultMuxerPair struct {
 	doneC           chan struct{}
 }

-func NewDefaultMuxerPair(t assert.TestingT, h h2mux.MuxedStreamHandler) *DefaultMuxerPair {
+func NewDefaultMuxerPair(t *testing.T, h h2mux.MuxedStreamHandler) *DefaultMuxerPair {
 	origin, edge := net.Pipe()
 	p := &DefaultMuxerPair{
 		OriginMuxConfig: h2mux.MuxerConfig{
@@ -171,20 +167,20 @@ func NewDefaultMuxerPair(t assert.TestingT, h h2mux.MuxedStreamHandler) *Default
 		EdgeConn: edge,
 		doneC:    make(chan struct{}),
 	}
-	assert.NoError(t, p.Handshake())
+	assert.NoError(t, p.Handshake(t.Name()))
 	return p
 }

-func (p *DefaultMuxerPair) Handshake() error {
+func (p *DefaultMuxerPair) Handshake(testName string) error {
 	ctx, cancel := context.WithTimeout(context.Background(), testHandshakeTimeout)
 	defer cancel()
 	errGroup, _ := errgroup.WithContext(ctx)
 	errGroup.Go(func() (err error) {
-		p.EdgeMux, err = h2mux.Handshake(p.EdgeConn, p.EdgeConn, p.EdgeMuxConfig)
+		p.EdgeMux, err = h2mux.Handshake(p.EdgeConn, p.EdgeConn, p.EdgeMuxConfig, h2mux.NewActiveStreamsMetrics(testName, "edge"))
 		return errors.Wrap(err, "edge handshake failure")
 	})
 	errGroup.Go(func() (err error) {
-		p.OriginMux, err = h2mux.Handshake(p.OriginConn, p.OriginConn, p.OriginMuxConfig)
+		p.OriginMux, err = h2mux.Handshake(p.OriginConn, p.OriginConn, p.OriginMuxConfig, h2mux.NewActiveStreamsMetrics(testName, "origin"))
 		return errors.Wrap(err, "origin handshake failure")
 	})

@@ -16,6 +16,7 @@ import (
 	"github.com/cloudflare/cloudflared/h2mux"
 	"github.com/cloudflare/cloudflared/streamhandler"
 	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
 )

@@ -28,6 +29,27 @@ type Supervisor struct {
 	useConfigResultChan chan<- *pogs.UseConfigurationResult
 	state               *state
 	logger              *logrus.Entry
+	metrics             metrics
+}
+
+type metrics struct {
+	configVersion prometheus.Gauge
+}
+
+func newMetrics() metrics {
+	configVersion := prometheus.NewGauge(prometheus.GaugeOpts{
+		Namespace: "supervisor",
+		Subsystem: "supervisor",
+		Name:      "config_version",
+		Help:      "Latest configuration version received from Cloudflare",
+	},
+	)
+	prometheus.MustRegister(
+		configVersion,
+	)
+	return metrics{
+		configVersion: configVersion,
+	}
 }

 func NewSupervisor(
@@ -70,6 +92,7 @@ func NewSupervisor(
 		useConfigResultChan: useConfigResultChan,
 		state:               newState(defaultClientConfig),
 		logger:              logger.WithField("subsystem", "supervisor"),
+		metrics:             newMetrics(),
 	}, nil
 }

@@ -131,6 +154,7 @@ func (s *Supervisor) notifySubsystemsNewConfig(newConfig *pogs.ClientConfig) *po
 			Success: true,
 		}
 	}
+	s.metrics.configVersion.Set(float64(newConfig.Version))

 	s.state.updateConfig(newConfig)
 	var tunnelHostnames []h2mux.TunnelHostname
@@ -5,7 +5,6 @@ import (
 	"crypto/x509"
 	"fmt"
 	"io/ioutil"
-	"net"
 	"runtime"
 	"sync"

@@ -18,6 +17,8 @@ import (
 const (
 	OriginCAPoolFlag = "origin-ca-pool"
 	CaCertFlag       = "cacert"
+
+	edgeTLSServerName = "cftunnel.com"
 )

 // CertReloader can load and reload a TLS certificate from a particular filepath.
@@ -126,7 +127,7 @@ func CreateTunnelConfig(c *cli.Context) (*tls.Config, error) {
 		rootCAs = append(rootCAs, c.String(CaCertFlag))
 	}

-	userConfig := &TLSParameters{RootCAs: rootCAs}
+	userConfig := &TLSParameters{RootCAs: rootCAs, ServerName: edgeTLSServerName}
 	tlsConfig, err := GetConfig(userConfig)
 	if err != nil {
 		return nil, err
@@ -142,10 +143,6 @@ func CreateTunnelConfig(c *cli.Context) (*tls.Config, error) {
 			rootCAPool.AddCert(cert)
 		}
 		tlsConfig.RootCAs = rootCAPool
-		tlsConfig.ServerName = "cftunnel.com"
-	} else if edgeAddrs := c.StringSlice("edge"); len(edgeAddrs) > 0 {
-		// Set for development environments and for testing specific origintunneld instances
-		tlsConfig.ServerName, _, _ = net.SplitHostPort(edgeAddrs[0])
 	}

 	if tlsConfig.ServerName == "" && !tlsConfig.InsecureSkipVerify {
@@ -1,5 +1,3 @@
-// TODO: Remove the above build tag and include this test when we start compiling with Golang 1.10.0+
-
 package tlsconfig

 import (
@@ -193,20 +193,20 @@ func TestTunnelHostnameMapper_ToRemove(t *testing.T) {

 func sampleConfig1() *pogs.ReverseProxyConfig {
 	return &pogs.ReverseProxyConfig{
-		TunnelHostname:          "mock.example.com",
-		OriginConfigJSONHandler: &pogs.OriginConfigJSONHandler{OriginConfig: &pogs.HelloWorldOriginConfig{}},
-		Retries:                 18,
-		ConnectionTimeout:       5 * time.Second,
-		CompressionQuality:      3,
+		TunnelHostname:     "mock.example.com",
+		OriginConfig:       &pogs.HelloWorldOriginConfig{},
+		Retries:            18,
+		ConnectionTimeout:  5 * time.Second,
+		CompressionQuality: 3,
 	}
 }

 func sampleConfig2() *pogs.ReverseProxyConfig {
 	return &pogs.ReverseProxyConfig{
-		TunnelHostname:          "mock2.example.com",
-		OriginConfigJSONHandler: &pogs.OriginConfigJSONHandler{OriginConfig: &pogs.HelloWorldOriginConfig{}},
-		Retries:                 18,
-		ConnectionTimeout:       5 * time.Second,
-		CompressionQuality:      3,
+		TunnelHostname:     "mock2.example.com",
+		OriginConfig:       &pogs.HelloWorldOriginConfig{},
+		Retries:            18,
+		ConnectionTimeout:  5 * time.Second,
+		CompressionQuality: 3,
 	}
 }
@@ -0,0 +1,108 @@
+package pogs
+
+import (
+	"fmt"
+	"time"
+)
+
+// AuthenticateResponse is the serialized response from the Authenticate RPC.
+// It's a 1:1 representation of the capnp message, so it's not very useful for programmers.
+// Instead, you should call the `Outcome()` method to get a programmer-friendly sum type, with one
+// case for each possible outcome.
+type AuthenticateResponse struct {
+	PermanentErr      string
+	RetryableErr      string
+	Jwt               []byte
+	HoursUntilRefresh uint8
+}
+
+// Outcome turns the deserialized response of Authenticate into a programmer-friendly sum type.
+func (ar AuthenticateResponse) Outcome() AuthOutcome {
+	// If there was a network error, then cloudflared should retry later,
+	// because origintunneld couldn't prove whether auth was correct or not.
+	if ar.RetryableErr != "" {
+		return &AuthUnknown{Err: fmt.Errorf(ar.RetryableErr), HoursUntilRefresh: ar.HoursUntilRefresh}
+	}
+
+	// If the user's authentication was unsuccessful, the server will return an error explaining why.
+	// cloudflared should fatal with this error.
+	if ar.PermanentErr != "" {
+		return &AuthFail{Err: fmt.Errorf(ar.PermanentErr)}
+	}
+
+	// If auth succeeded, return the token and refresh it when instructed.
+	if ar.PermanentErr == "" && len(ar.Jwt) > 0 {
+		return &AuthSuccess{Jwt: ar.Jwt, HoursUntilRefresh: ar.HoursUntilRefresh}
+	}
+
+	// Otherwise the state got messed up.
+	return nil
+}
+
+// AuthOutcome is a programmer-friendly sum type denoting the possible outcomes of Authenticate.
+//go-sumtype:decl AuthOutcome
+type AuthOutcome interface {
+	isAuthOutcome()
+	// Serialize into an AuthenticateResponse which can be sent via Capnp
+	Serialize() AuthenticateResponse
+}
+
+// AuthSuccess means the backend successfully authenticated this cloudflared.
+type AuthSuccess struct {
+	Jwt               []byte
+	HoursUntilRefresh uint8
+}
+
+// RefreshAfter is how long cloudflared should wait before rerunning Authenticate.
+func (ao *AuthSuccess) RefreshAfter() time.Duration {
+	return hoursToTime(ao.HoursUntilRefresh)
+}
+
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthSuccess) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		Jwt:               ao.Jwt,
+		HoursUntilRefresh: ao.HoursUntilRefresh,
+	}
+}
+
+func (ao *AuthSuccess) isAuthOutcome() {}
+
+// AuthFail means this cloudflared has the wrong auth and should exit.
+type AuthFail struct {
+	Err error
+}
+
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthFail) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		PermanentErr: ao.Err.Error(),
+	}
+}
+
+func (ao *AuthFail) isAuthOutcome() {}
+
+// AuthUnknown means the backend couldn't finish checking authentication. Try again later.
+type AuthUnknown struct {
+	Err               error
+	HoursUntilRefresh uint8
+}
+
+// RefreshAfter is how long cloudflared should wait before rerunning Authenticate.
+func (ao *AuthUnknown) RefreshAfter() time.Duration {
+	return hoursToTime(ao.HoursUntilRefresh)
+}
+
+// Serialize into an AuthenticateResponse which can be sent via Capnp
+func (ao *AuthUnknown) Serialize() AuthenticateResponse {
+	return AuthenticateResponse{
+		RetryableErr:      ao.Err.Error(),
+		HoursUntilRefresh: ao.HoursUntilRefresh,
+	}
+}
+
+func (ao *AuthUnknown) isAuthOutcome() {}
+
+func hoursToTime(hours uint8) time.Duration {
+	return time.Duration(hours) * time.Hour
+}
@@ -0,0 +1,78 @@
+package pogs
+
+import (
+	"context"
+
+	"github.com/cloudflare/cloudflared/tunnelrpc"
+
+	"zombiezen.com/go/capnproto2/pogs"
+	"zombiezen.com/go/capnproto2/server"
+)
+
+func (i TunnelServer_PogsImpl) Authenticate(p tunnelrpc.TunnelServer_authenticate) error {
+	originCert, err := p.Params.OriginCert()
+	if err != nil {
+		return err
+	}
+	hostname, err := p.Params.Hostname()
+	if err != nil {
+		return err
+	}
+	options, err := p.Params.Options()
+	if err != nil {
+		return err
+	}
+	pogsOptions, err := UnmarshalRegistrationOptions(options)
+	if err != nil {
+		return err
+	}
+
+	server.Ack(p.Options)
+	resp, err := i.impl.Authenticate(p.Ctx, originCert, hostname, pogsOptions)
+	if err != nil {
+		return err
+	}
+	result, err := p.Results.NewResult()
+	if err != nil {
+		return err
+	}
+	return MarshalAuthenticateResponse(result, resp)
+}
+
+func MarshalAuthenticateResponse(s tunnelrpc.AuthenticateResponse, p *AuthenticateResponse) error {
+	return pogs.Insert(tunnelrpc.AuthenticateResponse_TypeID, s.Struct, p)
+}
+
+func (c TunnelServer_PogsClient) Authenticate(ctx context.Context, originCert []byte, hostname string, options *RegistrationOptions) (*AuthenticateResponse, error) {
+	client := tunnelrpc.TunnelServer{Client: c.Client}
+	promise := client.Authenticate(ctx, func(p tunnelrpc.TunnelServer_authenticate_Params) error {
+		err := p.SetOriginCert(originCert)
+		if err != nil {
+			return err
+		}
+		err = p.SetHostname(hostname)
+		if err != nil {
+			return err
+		}
+		registrationOptions, err := p.NewOptions()
+		if err != nil {
+			return err
+		}
+		err = MarshalRegistrationOptions(registrationOptions, options)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	retval, err := promise.Result().Struct()
+	if err != nil {
+		return nil, err
+	}
+	return UnmarshalAuthenticateResponse(retval)
+}
+
+func UnmarshalAuthenticateResponse(s tunnelrpc.AuthenticateResponse) (*AuthenticateResponse, error) {
+	p := new(AuthenticateResponse)
+	err := pogs.Extract(p, tunnelrpc.AuthenticateResponse_TypeID, s.Struct)
+	return p, err
+}
@@ -0,0 +1,113 @@
+package pogs
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/cloudflare/cloudflared/tunnelrpc"
+	"github.com/stretchr/testify/assert"
+	capnp "zombiezen.com/go/capnproto2"
+)
+
+// Ensure the AuthOutcome sum is correct
+var _ AuthOutcome = &AuthSuccess{}
+var _ AuthOutcome = &AuthFail{}
+var _ AuthOutcome = &AuthUnknown{}
+
+// Unit tests for AuthenticateResponse.Outcome()
+func TestAuthenticateResponseOutcome(t *testing.T) {
+	type fields struct {
+		PermanentErr      string
+		RetryableErr      string
+		Jwt               []byte
+		HoursUntilRefresh uint8
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		want   AuthOutcome
+	}{
+		{"success",
+			fields{Jwt: []byte("asdf"), HoursUntilRefresh: 6},
+			&AuthSuccess{Jwt: []byte("asdf"), HoursUntilRefresh: 6},
+		},
+		{"fail",
+			fields{PermanentErr: "bad creds"},
+			&AuthFail{Err: fmt.Errorf("bad creds")},
+		},
+		{"error",
+			fields{RetryableErr: "bad conn", HoursUntilRefresh: 6},
+			&AuthUnknown{Err: fmt.Errorf("bad conn"), HoursUntilRefresh: 6},
+		},
+		{"nil (no fields are set)",
+			fields{},
+			nil,
+		},
+		{"nil (too few fields are set)",
+			fields{HoursUntilRefresh: 6},
+			nil,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ar := AuthenticateResponse{
+				PermanentErr:      tt.fields.PermanentErr,
+				RetryableErr:      tt.fields.RetryableErr,
+				Jwt:               tt.fields.Jwt,
+				HoursUntilRefresh: tt.fields.HoursUntilRefresh,
+			}
+			got := ar.Outcome()
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("AuthenticateResponse.Outcome() = %T, want %v", got, tt.want)
+			}
+			if got != nil && !reflect.DeepEqual(got.Serialize(), ar) {
+				t.Errorf(".Outcome() and .Serialize() should be inverses but weren't. Expected %v, got %v", ar, got.Serialize())
+			}
+		})
+	}
+}
+
+func TestWhenToRefresh(t *testing.T) {
+	expected := 4 * time.Hour
+	actual := hoursToTime(4)
+	if expected != actual {
+		t.Fatalf("expected %v hours, got %v", expected, actual)
+	}
+}
+
+// Test that serializing and deserializing AuthenticationResponse undo each other.
+func TestSerializeAuthenticationResponse(t *testing.T) {
+
+	tests := []*AuthenticateResponse{
+		&AuthenticateResponse{
+			Jwt:               []byte("\xbd\xb2\x3d\xbc\x20\xe2\x8c\x98"),
+			HoursUntilRefresh: 24,
+		},
+		&AuthenticateResponse{
+			PermanentErr: "bad auth",
+		},
+		&AuthenticateResponse{
+			RetryableErr:      "bad connection",
+			HoursUntilRefresh: 24,
+		},
+	}
+
+	for i, testCase := range tests {
+		_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
+		capnpEntity, err := tunnelrpc.NewAuthenticateResponse(seg)
+		if !assert.NoError(t, err) {
+			t.Fatal("Couldn't initialize a new message")
+		}
+		err = MarshalAuthenticateResponse(capnpEntity, testCase)
+		if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
+			continue
+		}
+		result, err := UnmarshalAuthenticateResponse(capnpEntity)
+		if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
+			continue
+		}
+		assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
+	}
+}
@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/tls"
 	"crypto/x509"
-	"encoding/json"
 	"fmt"
 	"net"
 	"net/http"
@@ -29,11 +28,43 @@ import (

 // ClientConfig is a collection of FallibleConfig that determines how cloudflared should function
 type ClientConfig struct {
-	Version              Version               `json:"version"`
-	SupervisorConfig     *SupervisorConfig     `json:"supervisor_config"`
-	EdgeConnectionConfig *EdgeConnectionConfig `json:"edge_connection_config"`
-	DoHProxyConfigs      []*DoHProxyConfig     `json:"doh_proxy_configs" capnp:"dohProxyConfigs"`
-	ReverseProxyConfigs  []*ReverseProxyConfig `json:"reverse_proxy_configs"`
+	Version              Version
+	SupervisorConfig     *SupervisorConfig
+	EdgeConnectionConfig *EdgeConnectionConfig
+	DoHProxyConfigs      []*DoHProxyConfig `capnp:"dohProxyConfigs"`
+	ReverseProxyConfigs  []*ReverseProxyConfig
+}
+
+func (c *ClientConfig) MarshalBytes() ([]byte, error) {
+	msg, firstSeg, err := capnp.NewMessage(capnp.SingleSegment(nil))
+	if err != nil {
+		return nil, err
+	}
+	capnpEntity, err := tunnelrpc.NewRootClientConfig(firstSeg)
+	if err != nil {
+		return nil, err
+	}
+	err = MarshalClientConfig(capnpEntity, c)
+	if err != nil {
+		return nil, err
+	}
+	return msg.Marshal()
+}
+
+func UnmarshalClientConfigFromBytes(clientConfigBytes []byte) (*ClientConfig, error) {
+	msg, err := capnp.Unmarshal(clientConfigBytes)
+	if err != nil {
+		return nil, err
+	}
+	capnpClientConfig, err := tunnelrpc.ReadRootClientConfig(msg)
+	if err != nil {
+		return nil, err
+	}
+	pogsClientConfig, err := UnmarshalClientConfig(capnpClientConfig)
+	if err != nil {
+		return nil, err
+	}
+	return pogsClientConfig, nil
 }

 // Version type models the version of a ClientConfig
@@ -52,16 +83,17 @@ func (v Version) String() string {
 }

 // FallibleConfig is an interface implemented by configs that cloudflared might not be able to apply
+//go-sumtype:decl FallibleConfig
 type FallibleConfig interface {
 	FailReason(err error) string
-	jsonType() string
+	isFallibleConfig()
 }

 // SupervisorConfig specifies config of components managed by Supervisor other than ConnectionManager
 type SupervisorConfig struct {
-	AutoUpdateFrequency    time.Duration `json:"auto_update_frequency"`
-	MetricsUpdateFrequency time.Duration `json:"metrics_update_frequency"`
-	GracePeriod            time.Duration `json:"grace_period"`
+	AutoUpdateFrequency    time.Duration
+	MetricsUpdateFrequency time.Duration
+	GracePeriod            time.Duration
 }

 // FailReason impelents FallibleConfig interface for SupervisorConfig
@@ -69,23 +101,15 @@ func (sc *SupervisorConfig) FailReason(err error) string {
 	return fmt.Sprintf("Cannot apply SupervisorConfig, err: %v", err)
 }

-func (sc *SupervisorConfig) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]SupervisorConfig, 1)
-	marshaler[sc.jsonType()] = *sc
-	return json.Marshal(marshaler)
-}
-
-func (sc *SupervisorConfig) jsonType() string {
-	return "supervisor_config"
-}
+func (_ *SupervisorConfig) isFallibleConfig() {}

 // EdgeConnectionConfig specifies what parameters and how may connections should ConnectionManager establish with edge
 type EdgeConnectionConfig struct {
-	NumHAConnections    uint8         `json:"num_ha_connections"`
-	HeartbeatInterval   time.Duration `json:"heartbeat_interval"`
-	Timeout             time.Duration `json:"timeout"`
-	MaxFailedHeartbeats uint64        `json:"max_failed_heartbeats"`
-	UserCredentialPath  string        `json:"user_credential_path"`
+	NumHAConnections    uint8
+	HeartbeatInterval   time.Duration
+	Timeout             time.Duration
+	MaxFailedHeartbeats uint64
+	UserCredentialPath  string
 }

 // FailReason impelents FallibleConfig interface for EdgeConnectionConfig
@@ -93,21 +117,13 @@ func (cmc *EdgeConnectionConfig) FailReason(err error) string {
 	return fmt.Sprintf("Cannot apply EdgeConnectionConfig, err: %v", err)
 }

-func (cmc *EdgeConnectionConfig) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]EdgeConnectionConfig, 1)
-	marshaler[cmc.jsonType()] = *cmc
-	return json.Marshal(marshaler)
-}
-
-func (cmc *EdgeConnectionConfig) jsonType() string {
-	return "edge_connection_config"
-}
+func (_ *EdgeConnectionConfig) isFallibleConfig() {}

 // DoHProxyConfig is configuration for DNS over HTTPS service
 type DoHProxyConfig struct {
-	ListenHost string   `json:"listen_host"`
-	ListenPort uint16   `json:"listen_port"`
-	Upstreams  []string `json:"upstreams"`
+	ListenHost string
+	ListenPort uint16
+	Upstreams  []string
 }

 // FailReason impelents FallibleConfig interface for DoHProxyConfig
@@ -115,23 +131,15 @@ func (dpc *DoHProxyConfig) FailReason(err error) string {
 	return fmt.Sprintf("Cannot apply DoHProxyConfig, err: %v", err)
 }

-func (dpc *DoHProxyConfig) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]DoHProxyConfig, 1)
-	marshaler[dpc.jsonType()] = *dpc
-	return json.Marshal(marshaler)
-}
-
-func (dpc *DoHProxyConfig) jsonType() string {
-	return "doh_proxy_config"
-}
+func (_ *DoHProxyConfig) isFallibleConfig() {}

 // ReverseProxyConfig how and for what hostnames can this cloudflared proxy
 type ReverseProxyConfig struct {
-	TunnelHostname          h2mux.TunnelHostname     `json:"tunnel_hostname"`
-	OriginConfigJSONHandler *OriginConfigJSONHandler `json:"origin_config"`
-	Retries                 uint64                   `json:"retries"`
-	ConnectionTimeout       time.Duration            `json:"connection_timeout"`
-	CompressionQuality      uint64                   `json:"compression_quality"`
+	TunnelHostname     h2mux.TunnelHostname
+	OriginConfig       OriginConfig
+	Retries            uint64
+	ConnectionTimeout  time.Duration
+	CompressionQuality uint64
 }

 func NewReverseProxyConfig(
@@ -145,11 +153,11 @@ func NewReverseProxyConfig(
 		return nil, fmt.Errorf("NewReverseProxyConfig: originConfigUnmarshaler was null")
 	}
 	return &ReverseProxyConfig{
-		TunnelHostname:          h2mux.TunnelHostname(tunnelHostname),
-		OriginConfigJSONHandler: &OriginConfigJSONHandler{originConfig},
-		Retries:                 retries,
-		ConnectionTimeout:       connectionTimeout,
-		CompressionQuality:      compressionQuality,
+		TunnelHostname:     h2mux.TunnelHostname(tunnelHostname),
+		OriginConfig:       originConfig,
+		Retries:            retries,
+		ConnectionTimeout:  connectionTimeout,
+		CompressionQuality: compressionQuality,
 	}, nil
 }

@@ -158,58 +166,29 @@ func (rpc *ReverseProxyConfig) FailReason(err error) string {
 	return fmt.Sprintf("Cannot apply ReverseProxyConfig, err: %v", err)
 }

-func (rpc *ReverseProxyConfig) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]ReverseProxyConfig, 1)
-	marshaler[rpc.jsonType()] = *rpc
-	return json.Marshal(marshaler)
-}
-
-func (rpc *ReverseProxyConfig) jsonType() string {
-	return "reverse_proxy_config"
-}
+func (_ *ReverseProxyConfig) isFallibleConfig() {}

 //go-sumtype:decl OriginConfig
 type OriginConfig interface {
 	// Service returns a OriginService used to proxy to the origin
 	Service() (originservice.OriginService, error)
 	// go-sumtype requires at least one unexported method, otherwise it will complain that interface is not sealed
-	jsonType() string
-}
-
-type originType int
-
-const (
-	httpType originType = iota
-	wsType
-	helloWorldType
-)
-
-func (ot originType) String() string {
-	switch ot {
-	case httpType:
-		return "Http"
-	case wsType:
-		return "WebSocket"
-	case helloWorldType:
-		return "HelloWorld"
-	default:
-		return "unknown"
-	}
+	isOriginConfig()
 }

 type HTTPOriginConfig struct {
-	URLString              string        `capnp:"urlString" json:"url_string" mapstructure:"url_string"`
-	TCPKeepAlive           time.Duration `capnp:"tcpKeepAlive" json:"tcp_keep_alive" mapstructure:"tcp_keep_alive"`
-	DialDualStack          bool          `json:"dial_dual_stack" mapstructure:"dial_dual_stack"`
-	TLSHandshakeTimeout    time.Duration `capnp:"tlsHandshakeTimeout" json:"tls_handshake_timeout" mapstructure:"tls_handshake_timeout"`
-	TLSVerify              bool          `capnp:"tlsVerify" json:"tls_verify" mapstructure:"tls_verify"`
-	OriginCAPool           string        `json:"origin_ca_pool" mapstructure:"origin_ca_pool"`
-	OriginServerName       string        `json:"origin_server_name" mapstructure:"origin_server_name"`
-	MaxIdleConnections     uint64        `json:"max_idle_connections" mapstructure:"max_idle_connections"`
-	IdleConnectionTimeout  time.Duration `json:"idle_connection_timeout" mapstructure:"idle_connection_timeout"`
-	ProxyConnectionTimeout time.Duration `json:"proxy_connection_timeout" mapstructure:"proxy_connection_timeout"`
-	ExpectContinueTimeout  time.Duration `json:"expect_continue_timeout" mapstructure:"expect_continue_timeout"`
-	ChunkedEncoding        bool          `json:"chunked_encoding" mapstructure:"chunked_encoding"`
+	URLString              string        `capnp:"urlString"`
+	TCPKeepAlive           time.Duration `capnp:"tcpKeepAlive"`
+	DialDualStack          bool
+	TLSHandshakeTimeout    time.Duration `capnp:"tlsHandshakeTimeout"`
+	TLSVerify              bool          `capnp:"tlsVerify"`
+	OriginCAPool           string
+	OriginServerName       string
+	MaxIdleConnections     uint64
+	IdleConnectionTimeout  time.Duration
+	ProxyConnectionTimeout time.Duration
+	ExpectContinueTimeout  time.Duration
+	ChunkedEncoding        bool
 }

 func (hc *HTTPOriginConfig) Service() (originservice.OriginService, error) {
@@ -248,15 +227,13 @@ func (hc *HTTPOriginConfig) Service() (originservice.OriginService, error) {
 	return originservice.NewHTTPService(transport, url, hc.ChunkedEncoding), nil
 }

-func (_ *HTTPOriginConfig) jsonType() string {
-	return httpType.String()
-}
+func (*HTTPOriginConfig) isOriginConfig() {}

 type WebSocketOriginConfig struct {
-	URLString        string `capnp:"urlString" json:"url_string" mapstructure:"url_string"`
-	TLSVerify        bool   `capnp:"tlsVerify" json:"tls_verify" mapstructure:"tls_verify"`
-	OriginCAPool     string `json:"origin_ca_pool" mapstructure:"origin_ca_pool"`
-	OriginServerName string `json:"origin_server_name" mapstructure:"origin_server_name"`
+	URLString        string `capnp:"urlString"`
+	TLSVerify        bool   `capnp:"tlsVerify"`
+	OriginCAPool     string
+	OriginServerName string
 }

 func (wsc *WebSocketOriginConfig) Service() (originservice.OriginService, error) {
@@ -277,13 +254,11 @@ func (wsc *WebSocketOriginConfig) Service() (originservice.OriginService, error)
 	return originservice.NewWebSocketService(tlsConfig, url)
 }

-func (_ *WebSocketOriginConfig) jsonType() string {
-	return wsType.String()
-}
+func (*WebSocketOriginConfig) isOriginConfig() {}

 type HelloWorldOriginConfig struct{}

-func (_ *HelloWorldOriginConfig) Service() (originservice.OriginService, error) {
+func (*HelloWorldOriginConfig) Service() (originservice.OriginService, error) {
 	helloCert, err := tlsconfig.GetHelloCertificateX509()
 	if err != nil {
 		return nil, errors.Wrap(err, "Cannot get Hello World server certificate")
@@ -308,9 +283,7 @@ func (_ *HelloWorldOriginConfig) Service() (originservice.OriginService, error)
 	return originservice.NewHelloWorldService(transport)
 }

-func (_ *HelloWorldOriginConfig) jsonType() string {
-	return helloWorldType.String()
-}
+func (*HelloWorldOriginConfig) isOriginConfig() {}

 /*
 * Boilerplate to convert between these structs and the primitive structs
@@ -519,9 +492,9 @@ func UnmarshalDoHProxyConfig(s tunnelrpc.DoHProxyConfig) (*DoHProxyConfig, error

 func MarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig, p *ReverseProxyConfig) error {
 	s.SetTunnelHostname(p.TunnelHostname.String())
-	switch config := p.OriginConfigJSONHandler.OriginConfig.(type) {
+	switch config := p.OriginConfig.(type) {
 	case *HTTPOriginConfig:
-		ss, err := s.Origin().NewHttp()
+		ss, err := s.OriginConfig().NewHttp()
 		if err != nil {
 			return err
 		}
@@ -529,7 +502,7 @@ func MarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig, p *ReverseProxyCo
 			return err
 		}
 	case *WebSocketOriginConfig:
-		ss, err := s.Origin().NewWebsocket()
+		ss, err := s.OriginConfig().NewWebsocket()
 		if err != nil {
 			return err
 		}
@@ -537,7 +510,7 @@ func MarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig, p *ReverseProxyCo
 			return err
 		}
 	case *HelloWorldOriginConfig:
-		ss, err := s.Origin().NewHelloWorld()
+		ss, err := s.OriginConfig().NewHelloWorld()
 		if err != nil {
 			return err
 		}
@@ -560,9 +533,9 @@ func UnmarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig) (*ReverseProxyC
 		return nil, err
 	}
 	p.TunnelHostname = h2mux.TunnelHostname(tunnelHostname)
-	switch s.Origin().Which() {
-	case tunnelrpc.ReverseProxyConfig_origin_Which_http:
-		ss, err := s.Origin().Http()
+	switch s.OriginConfig().Which() {
+	case tunnelrpc.ReverseProxyConfig_originConfig_Which_http:
+		ss, err := s.OriginConfig().Http()
 		if err != nil {
 			return nil, err
 		}
@@ -570,9 +543,9 @@ func UnmarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig) (*ReverseProxyC
 		if err != nil {
 			return nil, err
 		}
-		p.OriginConfigJSONHandler = &OriginConfigJSONHandler{config}
-	case tunnelrpc.ReverseProxyConfig_origin_Which_websocket:
-		ss, err := s.Origin().Websocket()
+		p.OriginConfig = config
+	case tunnelrpc.ReverseProxyConfig_originConfig_Which_websocket:
+		ss, err := s.OriginConfig().Websocket()
 		if err != nil {
 			return nil, err
 		}
@@ -580,9 +553,9 @@ func UnmarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig) (*ReverseProxyC
 		if err != nil {
 			return nil, err
 		}
-		p.OriginConfigJSONHandler = &OriginConfigJSONHandler{config}
-	case tunnelrpc.ReverseProxyConfig_origin_Which_helloWorld:
-		ss, err := s.Origin().HelloWorld()
+		p.OriginConfig = config
+	case tunnelrpc.ReverseProxyConfig_originConfig_Which_helloWorld:
+		ss, err := s.OriginConfig().HelloWorld()
 		if err != nil {
 			return nil, err
 		}
@@ -590,7 +563,7 @@ func UnmarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig) (*ReverseProxyC
 		if err != nil {
 			return nil, err
 		}
-		p.OriginConfigJSONHandler = &OriginConfigJSONHandler{config}
+		p.OriginConfig = config
 	}
 	p.Retries = s.Retries()
 	p.ConnectionTimeout = time.Duration(s.ConnectionTimeout())
@@ -690,13 +663,13 @@ func (i ClientService_PogsImpl) UseConfiguration(p tunnelrpc.ClientService_useCo
 }

 type UseConfigurationResult struct {
-	Success       bool            `json:"success"`
-	FailedConfigs []*FailedConfig `json:"failed_configs"`
+	Success       bool
+	FailedConfigs []*FailedConfig
 }

 type FailedConfig struct {
-	Config FallibleConfig `json:"config"`
-	Reason string         `json:"reason"`
+	Config FallibleConfig
+	Reason string
 }

 func MarshalFailedConfig(s tunnelrpc.FailedConfig, p *FailedConfig) error {
@@ -61,13 +61,13 @@ func ClientConfigTestCases() []*ClientConfig {
 			sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
 			}),
 			sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleHTTPOriginConfig()}
+				c.OriginConfig = sampleHTTPOriginConfig()
 			}),
 			sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleHTTPOriginConfigUnixPath()}
+				c.OriginConfig = sampleHTTPOriginConfigUnixPath()
 			}),
 			sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleWebSocketOriginConfig()}
+				c.OriginConfig = sampleWebSocketOriginConfig()
 			}),
 		}
 	}
@@ -83,21 +83,14 @@ func ClientConfigTestCases() []*ClientConfig {
 }

 func TestClientConfig(t *testing.T) {
-	for i, testCase := range ClientConfigTestCases() {
-		_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
-		capnpEntity, err := tunnelrpc.NewClientConfig(seg)
-		if !assert.NoError(t, err) {
-			t.Fatal("Couldn't initialize a new message")
-		}
-		err = MarshalClientConfig(capnpEntity, testCase)
-		if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
-			continue
-		}
-		result, err := UnmarshalClientConfig(capnpEntity)
-		if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
-			continue
-		}
-		assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
+	for _, testCase := range ClientConfigTestCases() {
+		b, err := testCase.MarshalBytes()
+		assert.NoError(t, err)
+
+		clientConfig, err := UnmarshalClientConfigFromBytes(b)
+		assert.NoError(t, err)
+
+		assert.Equal(t, testCase, clientConfig)
 	}
 }

@@ -167,13 +160,13 @@ func TestReverseProxyConfig(t *testing.T) {
 	testCases := []*ReverseProxyConfig{
 		sampleReverseProxyConfig(),
 		sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-			c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleHTTPOriginConfig()}
+			c.OriginConfig = sampleHTTPOriginConfig()
 		}),
 		sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-			c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleHTTPOriginConfigUnixPath()}
+			c.OriginConfig = sampleHTTPOriginConfigUnixPath()
 		}),
 		sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-			c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleWebSocketOriginConfig()}
+			c.OriginConfig = sampleWebSocketOriginConfig()
 		}),
 	}
 	for i, testCase := range testCases {
@@ -323,11 +316,11 @@ func sampleDoHProxyConfig(overrides ...func(*DoHProxyConfig)) *DoHProxyConfig {
 // applies any number of overrides to it, and returns it.
 func sampleReverseProxyConfig(overrides ...func(*ReverseProxyConfig)) *ReverseProxyConfig {
 	sample := &ReverseProxyConfig{
-		TunnelHostname:          "mock-non-lb-tunnel.example.com",
-		OriginConfigJSONHandler: &OriginConfigJSONHandler{&HelloWorldOriginConfig{}},
-		Retries:                 18,
-		ConnectionTimeout:       5 * time.Second,
-		CompressionQuality:      3,
+		TunnelHostname:     "mock-non-lb-tunnel.example.com",
+		OriginConfig:       &HelloWorldOriginConfig{},
+		Retries:            18,
+		ConnectionTimeout:  5 * time.Second,
+		CompressionQuality: 3,
 	}
 	sample.ensureNoZeroFields()
 	for _, f := range overrides {
@@ -1,68 +0,0 @@
-package pogs
-
-import (
-	"encoding/json"
-	"fmt"
-
-	"github.com/mitchellh/mapstructure"
-	"github.com/pkg/errors"
-)
-
-// OriginConfigJSONHandler is a wrapper to serialize OriginConfig with type information, and deserialize JSON
-// into an OriginConfig.
-type OriginConfigJSONHandler struct {
-	OriginConfig OriginConfig
-}
-
-func (ocjh *OriginConfigJSONHandler) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]OriginConfig, 1)
-	marshaler[ocjh.OriginConfig.jsonType()] = ocjh.OriginConfig
-	return json.Marshal(marshaler)
-}
-
-func (ocjh *OriginConfigJSONHandler) UnmarshalJSON(b []byte) error {
-	var originJSON map[string]interface{}
-	if err := json.Unmarshal(b, &originJSON); err != nil {
-		return errors.Wrapf(err, "cannot unmarshal %s into originJSON", string(b))
-	}
-
-	if originConfig, ok := originJSON[httpType.String()]; ok {
-		httpOriginConfig := &HTTPOriginConfig{}
-		if err := mapstructure.Decode(originConfig, httpOriginConfig); err != nil {
-			return errors.Wrapf(err, "cannot decode %+v into HTTPOriginConfig", originConfig)
-		}
-		ocjh.OriginConfig = httpOriginConfig
-		return nil
-	}
-
-	if originConfig, ok := originJSON[wsType.String()]; ok {
-		wsOriginConfig := &WebSocketOriginConfig{}
-		if err := mapstructure.Decode(originConfig, wsOriginConfig); err != nil {
-			return errors.Wrapf(err, "cannot decode %+v into WebSocketOriginConfig", originConfig)
-		}
-		ocjh.OriginConfig = wsOriginConfig
-		return nil
-	}
-
-	if originConfig, ok := originJSON[helloWorldType.String()]; ok {
-		helloWorldOriginConfig := &HelloWorldOriginConfig{}
-		if err := mapstructure.Decode(originConfig, helloWorldOriginConfig); err != nil {
-			return errors.Wrapf(err, "cannot decode %+v into HelloWorldOriginConfig", originConfig)
-		}
-		ocjh.OriginConfig = helloWorldOriginConfig
-		return nil
-	}
-
-	return fmt.Errorf("cannot unmarshal %s into OriginConfig", string(b))
-}
-
-// FallibleConfigMarshaler is a wrapper for FallibleConfig to implement custom marshal logic
-type FallibleConfigMarshaler struct {
-	FallibleConfig FallibleConfig
-}
-
-func (fcm *FallibleConfigMarshaler) MarshalJSON() ([]byte, error) {
-	marshaler := make(map[string]FallibleConfig, 1)
-	marshaler[fcm.FallibleConfig.jsonType()] = fcm.FallibleConfig
-	return json.Marshal(marshaler)
-}
@@ -1,285 +0,0 @@
-package pogs
-
-import (
-	"encoding/json"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestUnmarshalOrigin(t *testing.T) {
-	tests := []struct {
-		jsonLiteral          string
-		exceptedOriginConfig OriginConfig
-	}{
-		{
-			jsonLiteral: `{
-				"Http":{
-					"url_string":"https.example.com",
-					"tcp_keep_alive":7000000000,
-					"dial_dual_stack":true,
-					"tls_handshake_timeout":11000000000,
-					"tls_verify":true,
-					"origin_ca_pool":"/etc/cert.pem",
-					"origin_server_name":"secure.example.com",
-					"max_idle_connections":19,
-					"idle_connection_timeout":17000000000,
-					"proxy_connection_timeout":15000000000,
-					"expect_continue_timeout":21000000000,
-					"chunked_encoding":true
-				}
-			}`,
-			exceptedOriginConfig: sampleHTTPOriginConfig(),
-		},
-		{
-			jsonLiteral: `{
-				"WebSocket":{
-					"url_string":"ssh://example.com",
-					"tls_verify":true,
-					"origin_ca_pool":"/etc/cert.pem",
-					"origin_server_name":"secure.example.com"
-				}
-			}`,
-			exceptedOriginConfig: sampleWebSocketOriginConfig(),
-		},
-		{
-			jsonLiteral: `{
-				"HelloWorld": {}
-			}`,
-			exceptedOriginConfig: &HelloWorldOriginConfig{},
-		},
-	}
-
-	for _, test := range tests {
-		originConfigJSON := prettyToValidJSON(test.jsonLiteral)
-		var OriginConfigJSONHandler OriginConfigJSONHandler
-		err := json.Unmarshal([]byte(originConfigJSON), &OriginConfigJSONHandler)
-		assert.NoError(t, err)
-		assert.Equal(t, test.exceptedOriginConfig, OriginConfigJSONHandler.OriginConfig)
-	}
-}
-
-func TestUnmarshalClientConfig(t *testing.T) {
-	prettyClientConfigJSON := `{
-		"version":10,
-		"supervisor_config":{
-			"auto_update_frequency":86400000000000,
-			"metrics_update_frequency":300000000000,
-			"grace_period":30000000000
-		},
-		"edge_connection_config":{
-			"num_ha_connections":4,
-			"heartbeat_interval":5000000000,
-			"timeout":30000000000,
-			"max_failed_heartbeats":5,
-			"user_credential_path":"~/.cloudflared/cert.pem"
-		},
-		"doh_proxy_configs":[{
-			"listen_host": "localhost",
-			"listen_port": 53,
-			"upstreams": ["https://1.1.1.1/dns-query", "https://1.0.0.1/dns-query"]
-		}],
-		"reverse_proxy_configs":[{
-			"tunnel_hostname":"sdfjadk33.cftunnel.com",
-			"origin_config":{
-				"Http":{
-					"url_string":"https://127.0.0.1:8080",
-					"tcp_keep_alive":30000000000,
-					"dial_dual_stack":true,
-					"tls_handshake_timeout":10000000000,
-					"tls_verify":true,
-					"origin_ca_pool":"",
-					"origin_server_name":"",
-					"max_idle_connections":100,
-					"idle_connection_timeout":90000000000,
-					"proxy_connection_timeout":90000000000,
-					"expect_continue_timeout":90000000000,
-					"chunked_encoding":true
-				}
-			},
-			"retries":5,
-			"connection_timeout":30,
-			"compression_quality":0
-		}]
-	}`
-	// replace new line and tab
-	clientConfigJSON := prettyToValidJSON(prettyClientConfigJSON)
-
-	var clientConfig ClientConfig
-	err := json.Unmarshal([]byte(clientConfigJSON), &clientConfig)
-	assert.NoError(t, err)
-
-	assert.Equal(t, Version(10), clientConfig.Version)
-
-	supervisorConfig := SupervisorConfig{
-		AutoUpdateFrequency:    time.Hour * 24,
-		MetricsUpdateFrequency: time.Second * 300,
-		GracePeriod:            time.Second * 30,
-	}
-	assert.Equal(t, supervisorConfig, *clientConfig.SupervisorConfig)
-
-	edgeConnectionConfig := EdgeConnectionConfig{
-		NumHAConnections:    4,
-		HeartbeatInterval:   time.Second * 5,
-		Timeout:             time.Second * 30,
-		MaxFailedHeartbeats: 5,
-		UserCredentialPath:  "~/.cloudflared/cert.pem",
-	}
-	assert.Equal(t, edgeConnectionConfig, *clientConfig.EdgeConnectionConfig)
-
-	dohProxyConfig := DoHProxyConfig{
-		ListenHost: "localhost",
-		ListenPort: 53,
-		Upstreams:  []string{"https://1.1.1.1/dns-query", "https://1.0.0.1/dns-query"},
-	}
-
-	assert.Len(t, clientConfig.DoHProxyConfigs, 1)
-	assert.Equal(t, dohProxyConfig, *clientConfig.DoHProxyConfigs[0])
-
-	reverseProxyConfig := ReverseProxyConfig{
-		TunnelHostname: "sdfjadk33.cftunnel.com",
-		OriginConfigJSONHandler: &OriginConfigJSONHandler{
-			OriginConfig: &HTTPOriginConfig{
-				URLString:              "https://127.0.0.1:8080",
-				TCPKeepAlive:           time.Second * 30,
-				DialDualStack:          true,
-				TLSHandshakeTimeout:    time.Second * 10,
-				TLSVerify:              true,
-				OriginCAPool:           "",
-				OriginServerName:       "",
-				MaxIdleConnections:     100,
-				IdleConnectionTimeout:  time.Second * 90,
-				ProxyConnectionTimeout: time.Second * 90,
-				ExpectContinueTimeout:  time.Second * 90,
-				ChunkedEncoding:        true,
-			},
-		},
-		Retries:            5,
-		ConnectionTimeout:  30,
-		CompressionQuality: 0,
-	}
-
-	assert.Len(t, clientConfig.ReverseProxyConfigs, 1)
-	assert.Equal(t, reverseProxyConfig, *clientConfig.ReverseProxyConfigs[0])
-}
-
-func TestMarshalFallibleConfig(t *testing.T) {
-	tests := []struct {
-		fallibleConfig     FallibleConfig
-		expctedJSONLiteral string
-	}{
-		{
-			fallibleConfig: sampleSupervisorConfig(),
-			expctedJSONLiteral: `{
-				"supervisor_config":{
-					"auto_update_frequency":75600000000000,
-					"metrics_update_frequency":660000000000,
-					"grace_period":31000000000
-				}
-			}`,
-		},
-		{
-			fallibleConfig: sampleEdgeConnectionConfig(),
-			expctedJSONLiteral: `{
-				"edge_connection_config":{
-					"num_ha_connections":49,
-					"heartbeat_interval":5000000000,
-					"timeout":9000000000,
-					"max_failed_heartbeats":9001,
-					"user_credential_path":"/Users/example/.cloudflared/cert.pem"
-				}
-			}`,
-		},
-		{
-			fallibleConfig: sampleDoHProxyConfig(),
-			expctedJSONLiteral: `{
-				"doh_proxy_config":{
-					"listen_host":"127.0.0.1",
-					"listen_port":53,
-					"upstreams":["1.1.1.1","1.0.0.1"]
-				}
-			}`,
-		},
-		{
-			fallibleConfig: sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleHTTPOriginConfig()}
-			}),
-			expctedJSONLiteral: `{
-				"reverse_proxy_config":{
-					"tunnel_hostname":"mock-non-lb-tunnel.example.com",
-					"origin_config":{
-						"Http":{
-							"url_string":"https.example.com",
-							"tcp_keep_alive":7000000000,
-							"dial_dual_stack":true,
-							"tls_handshake_timeout":11000000000,
-							"tls_verify":true,
-							"origin_ca_pool":"/etc/cert.pem",
-							"origin_server_name":"secure.example.com",
-							"max_idle_connections":19,
-							"idle_connection_timeout":17000000000,
-							"proxy_connection_timeout":15000000000,
-							"expect_continue_timeout":21000000000,
-							"chunked_encoding":true
-						}
-					},
-					"retries":18,
-					"connection_timeout":5000000000,
-					"compression_quality":3
-				}
-			}`,
-		},
-		{
-			fallibleConfig: sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{sampleWebSocketOriginConfig()}
-			}),
-			expctedJSONLiteral: `{
-				"reverse_proxy_config":{
-					"tunnel_hostname":"mock-non-lb-tunnel.example.com",
-					"origin_config":{
-						"WebSocket":{
-							"url_string":"ssh://example.com",
-							"tls_verify":true,
-							"origin_ca_pool":"/etc/cert.pem",
-							"origin_server_name":"secure.example.com"
-						}
-					},
-					"retries":18,
-					"connection_timeout":5000000000,
-					"compression_quality":3
-				}
-			}`,
-		},
-		{
-			fallibleConfig: sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
-				c.OriginConfigJSONHandler = &OriginConfigJSONHandler{&HelloWorldOriginConfig{}}
-			}),
-			expctedJSONLiteral: `{
-				"reverse_proxy_config":{
-					"tunnel_hostname":"mock-non-lb-tunnel.example.com",
-					"origin_config":{
-						"HelloWorld":{}
-					},
-					"retries":18,
-					"connection_timeout":5000000000,
-					"compression_quality":3
-				}
-			}`,
-		},
-	}
-
-	for _, test := range tests {
-		b, err := json.Marshal(test.fallibleConfig)
-		assert.NoError(t, err)
-		assert.Equal(t, prettyToValidJSON(test.expctedJSONLiteral), string(b))
-	}
-
-}
-
-type prettyJSON string
-
-func prettyToValidJSON(prettyJSON string) string {
-	return strings.ReplaceAll(strings.ReplaceAll(prettyJSON, "\n", ""), "\t", "")
-}
@@ -0,0 +1,70 @@
+package pogs
+
+import (
+	"context"
+
+	"github.com/cloudflare/cloudflared/tunnelrpc"
+	"zombiezen.com/go/capnproto2/server"
+)
+
+func (i TunnelServer_PogsImpl) ReconnectTunnel(p tunnelrpc.TunnelServer_reconnectTunnel) error {
+	jwt, err := p.Params.Jwt()
+	if err != nil {
+		return err
+	}
+	hostname, err := p.Params.Hostname()
+	if err != nil {
+		return err
+	}
+	options, err := p.Params.Options()
+	if err != nil {
+		return err
+	}
+	pogsOptions, err := UnmarshalRegistrationOptions(options)
+	if err != nil {
+		return err
+	}
+	server.Ack(p.Options)
+	registration, err := i.impl.ReconnectTunnel(p.Ctx, jwt, hostname, pogsOptions)
+	if err != nil {
+		return err
+	}
+	result, err := p.Results.NewResult()
+	if err != nil {
+		return err
+	}
+	return MarshalTunnelRegistration(result, registration)
+}
+
+func (c TunnelServer_PogsClient) ReconnectTunnel(
+	ctx context.Context,
+	jwt []byte,
+	hostname string,
+	options *RegistrationOptions,
+) (*TunnelRegistration, error) {
+	client := tunnelrpc.TunnelServer{Client: c.Client}
+	promise := client.ReconnectTunnel(ctx, func(p tunnelrpc.TunnelServer_reconnectTunnel_Params) error {
+		err := p.SetJwt(jwt)
+		if err != nil {
+			return err
+		}
+		err = p.SetHostname(hostname)
+		if err != nil {
+			return err
+		}
+		registrationOptions, err := p.NewOptions()
+		if err != nil {
+			return err
+		}
+		err = MarshalRegistrationOptions(registrationOptions, options)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	retval, err := promise.Result().Struct()
+	if err != nil {
+		return nil, err
+	}
+	return UnmarshalTunnelRegistration(retval)
+}
@@ -2,10 +2,12 @@ package pogs

 import (
 	"context"
+	"fmt"
 	"time"

 	"github.com/cloudflare/cloudflared/tunnelrpc"
 	"github.com/google/uuid"
+	"github.com/pkg/errors"

 	log "github.com/sirupsen/logrus"
 	capnp "zombiezen.com/go/capnproto2"
@@ -31,11 +33,12 @@ func UnmarshalAuthentication(s tunnelrpc.Authentication) (*Authentication, error
 }

 type TunnelRegistration struct {
-	Err              string
-	Url              string
-	LogLines         []string
-	PermanentFailure bool
-	TunnelID         string `capnp:"tunnelID"`
+	Err               string
+	Url               string
+	LogLines          []string
+	PermanentFailure  bool
+	TunnelID          string `capnp:"tunnelID"`
+	RetryAfterSeconds uint16
 }

 func MarshalTunnelRegistration(s tunnelrpc.TunnelRegistration, p *TunnelRegistration) error {
@@ -61,6 +64,7 @@ type RegistrationOptions struct {
 	RunFromTerminal      bool   `capnp:"runFromTerminal"`
 	CompressionQuality   uint64 `capnp:"compressionQuality"`
 	UUID                 string `capnp:"uuid"`
+	NumPreviousAttempts  uint8
 }

 func MarshalRegistrationOptions(s tunnelrpc.RegistrationOptions, p *RegistrationOptions) error {
@@ -73,28 +77,129 @@ func UnmarshalRegistrationOptions(s tunnelrpc.RegistrationOptions) (*Registratio
 	return p, err
 }

-type ConnectResult struct {
-	Err          *ConnectError
-	ServerInfo   ServerInfo
-	ClientConfig ClientConfig
+// ConnectResult models the result of Connect RPC, implemented by ConnectError and ConnectSuccess.
+type ConnectResult interface {
+	ConnectError() *ConnectError
+	ConnectedTo() string
+	ClientConfig() *ClientConfig
+	Marshal(s tunnelrpc.ConnectResult) error
 }

-func MarshalConnectResult(s tunnelrpc.ConnectResult, p *ConnectResult) error {
-	return pogs.Insert(tunnelrpc.ConnectResult_TypeID, s.Struct, p)
+func MarshalConnectResult(s tunnelrpc.ConnectResult, p ConnectResult) error {
+	return p.Marshal(s)
 }

-func UnmarshalConnectResult(s tunnelrpc.ConnectResult) (*ConnectResult, error) {
-	p := new(ConnectResult)
-	err := pogs.Extract(p, tunnelrpc.ConnectResult_TypeID, s.Struct)
-	return p, err
+func UnmarshalConnectResult(s tunnelrpc.ConnectResult) (ConnectResult, error) {
+	switch s.Result().Which() {
+	case tunnelrpc.ConnectResult_result_Which_err:
+		capnpConnectError, err := s.Result().Err()
+		if err != nil {
+			return nil, err
+		}
+		return UnmarshalConnectError(capnpConnectError)
+	case tunnelrpc.ConnectResult_result_Which_success:
+		capnpConnectSuccess, err := s.Result().Success()
+		if err != nil {
+			return nil, err
+		}
+		return UnmarshalConnectSuccess(capnpConnectSuccess)
+	default:
+		return nil, fmt.Errorf("Unmarshal %v not implemented yet", s.Result().Which().String())
+	}
 }

+// ConnectSuccess is the concrete returned type when Connect RPC succeed
+type ConnectSuccess struct {
+	ServerLocationName string
+	Config             *ClientConfig
+}
+
+func (*ConnectSuccess) ConnectError() *ConnectError {
+	return nil
+}
+
+func (cs *ConnectSuccess) ConnectedTo() string {
+	return cs.ServerLocationName
+}
+
+func (cs *ConnectSuccess) ClientConfig() *ClientConfig {
+	return cs.Config
+}
+
+func (cs *ConnectSuccess) Marshal(s tunnelrpc.ConnectResult) error {
+	capnpConnectSuccess, err := s.Result().NewSuccess()
+	if err != nil {
+		return err
+	}
+
+	err = capnpConnectSuccess.SetServerLocationName(cs.ServerLocationName)
+	if err != nil {
+		return errors.Wrap(err, "failed to set ConnectSuccess.ServerLocationName")
+	}
+
+	if cs.Config != nil {
+		capnpClientConfig, err := capnpConnectSuccess.NewClientConfig()
+		if err != nil {
+			return errors.Wrap(err, "failed to initialize ConnectSuccess.ClientConfig")
+		}
+		if err := MarshalClientConfig(capnpClientConfig, cs.Config); err != nil {
+			return errors.Wrap(err, "failed to marshal ClientConfig")
+		}
+	}
+
+	return nil
+}
+
+func UnmarshalConnectSuccess(s tunnelrpc.ConnectSuccess) (*ConnectSuccess, error) {
+	p := new(ConnectSuccess)
+
+	serverLocationName, err := s.ServerLocationName()
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to get tunnelrpc.ConnectSuccess.ServerLocationName")
+	}
+	p.ServerLocationName = serverLocationName
+
+	if s.HasClientConfig() {
+		capnpClientConfig, err := s.ClientConfig()
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to get tunnelrpc.ConnectSuccess.ClientConfig")
+		}
+		p.Config, err = UnmarshalClientConfig(capnpClientConfig)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to get unmarshal ClientConfig")
+		}
+	}
+
+	return p, nil
+}
+
+// ConnectError is the concrete returned type when Connect RPC encounters some error
 type ConnectError struct {
 	Cause       string
 	RetryAfter  time.Duration
 	ShouldRetry bool
 }

+func (ce *ConnectError) ConnectError() *ConnectError {
+	return ce
+}
+
+func (*ConnectError) ConnectedTo() string {
+	return ""
+}
+
+func (*ConnectError) ClientConfig() *ClientConfig {
+	return nil
+}
+
+func (ce *ConnectError) Marshal(s tunnelrpc.ConnectResult) error {
+	capnpConnectError, err := s.Result().NewErr()
+	if err != nil {
+		return err
+	}
+	return MarshalConnectError(capnpConnectError, ce)
+}
+
 func MarshalConnectError(s tunnelrpc.ConnectError, p *ConnectError) error {
 	return pogs.Insert(tunnelrpc.ConnectError_TypeID, s.Struct, p)
 }
@@ -134,8 +239,7 @@ type ConnectParameters struct {
 	NumPreviousAttempts uint8
 	Tags                []Tag
 	CloudflaredVersion  string
-	Name                string
-	Group               string
+	IntentLabel         string
 }

 func MarshalConnectParameters(s tunnelrpc.CapnpConnectParameters, p *ConnectParameters) error {
@@ -168,13 +272,7 @@ func MarshalConnectParameters(s tunnelrpc.CapnpConnectParameters, p *ConnectPara
 	if err := s.SetCloudflaredVersion(p.CloudflaredVersion); err != nil {
 		return err
 	}
-	if err := s.SetName(p.Name); err != nil {
-		return err
-	}
-	if err := s.SetGroup(p.Group); err != nil {
-		return err
-	}
-	return nil
+	return s.SetIntentLabel(p.IntentLabel)
 }

 func UnmarshalConnectParameters(s tunnelrpc.CapnpConnectParameters) (*ConnectParameters, error) {
@@ -215,24 +313,14 @@ func UnmarshalConnectParameters(s tunnelrpc.CapnpConnectParameters) (*ConnectPar
 		return nil, err
 	}

-	name, err := s.Name()
-	if err != nil {
-		return nil, err
-	}
-
-	group, err := s.Group()
-	if err != nil {
-		return nil, err
-	}
-
+	intentLabel, err := s.IntentLabel()
 	return &ConnectParameters{
 		OriginCert:          originCert,
 		CloudflaredID:       cloudflaredID,
 		NumPreviousAttempts: s.NumPreviousAttempts(),
 		Tags:                tags,
 		CloudflaredVersion:  cloudflaredVersion,
-		Name:                name,
-		Group:               group,
+		IntentLabel:         intentLabel,
 	}, nil
 }

@@ -240,7 +328,9 @@ type TunnelServer interface {
 	RegisterTunnel(ctx context.Context, originCert []byte, hostname string, options *RegistrationOptions) (*TunnelRegistration, error)
 	GetServerInfo(ctx context.Context) (*ServerInfo, error)
 	UnregisterTunnel(ctx context.Context, gracePeriodNanoSec int64) error
-	Connect(ctx context.Context, paramaters *ConnectParameters) (*ConnectResult, error)
+	Connect(ctx context.Context, parameters *ConnectParameters) (ConnectResult, error)
+	Authenticate(ctx context.Context, originCert []byte, hostname string, options *RegistrationOptions) (*AuthenticateResponse, error)
+	ReconnectTunnel(ctx context.Context, jwt []byte, hostname string, options *RegistrationOptions) (*TunnelRegistration, error)
 }

 func TunnelServer_ServerToClient(s TunnelServer) tunnelrpc.TunnelServer {
@@ -301,11 +391,11 @@ func (i TunnelServer_PogsImpl) UnregisterTunnel(p tunnelrpc.TunnelServer_unregis
 }

 func (i TunnelServer_PogsImpl) Connect(p tunnelrpc.TunnelServer_connect) error {
-	paramaters, err := p.Params.Parameters()
+	parameters, err := p.Params.Parameters()
 	if err != nil {
 		return err
 	}
-	pogsParameters, err := UnmarshalConnectParameters(paramaters)
+	pogsParameters, err := UnmarshalConnectParameters(parameters)
 	if err != nil {
 		return err
 	}
@@ -318,7 +408,7 @@ func (i TunnelServer_PogsImpl) Connect(p tunnelrpc.TunnelServer_connect) error {
 	if err != nil {
 		return err
 	}
-	return MarshalConnectResult(result, connectResult)
+	return connectResult.Marshal(result)
 }

 type TunnelServer_PogsClient struct {
@@ -382,7 +472,7 @@ func (c TunnelServer_PogsClient) UnregisterTunnel(ctx context.Context, gracePeri

 func (c TunnelServer_PogsClient) Connect(ctx context.Context,
 	parameters *ConnectParameters,
-) (*ConnectResult, error) {
+) (ConnectResult, error) {
 	client := tunnelrpc.TunnelServer{Client: c.Client}
 	promise := client.Connect(ctx, func(p tunnelrpc.TunnelServer_connect_Params) error {
 		connectParameters, err := p.NewParameters()
@@ -11,21 +11,51 @@ import (
 	capnp "zombiezen.com/go/capnproto2"
 )

-func sampleTestConnectResult() *ConnectResult {
-	return &ConnectResult{
-		Err: &ConnectError{
+func TestTunnelRegistration(t *testing.T) {
+	testCases := []*TunnelRegistration{
+		&TunnelRegistration{
+			Err:               "it broke",
+			Url:               "asdf.cftunnel.com",
+			LogLines:          []string{"it", "was", "broken"},
+			PermanentFailure:  true,
+			TunnelID:          "asdfghjkl;",
+			RetryAfterSeconds: 19,
+		},
+	}
+	for i, testCase := range testCases {
+		_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
+		capnpEntity, err := tunnelrpc.NewTunnelRegistration(seg)
+		if !assert.NoError(t, err) {
+			t.Fatal("Couldn't initialize a new message")
+		}
+		err = MarshalTunnelRegistration(capnpEntity, testCase)
+		if !assert.NoError(t, err, "testCase #%v failed to marshal", i) {
+			continue
+		}
+		result, err := UnmarshalTunnelRegistration(capnpEntity)
+		if !assert.NoError(t, err, "testCase #%v failed to unmarshal", i) {
+			continue
+		}
+		assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
+	}
+
+}
+
+func TestConnectResult(t *testing.T) {
+	testCases := []ConnectResult{
+		&ConnectError{
 			Cause:       "it broke",
 			ShouldRetry: false,
 			RetryAfter:  2 * time.Second,
 		},
-		ServerInfo:   ServerInfo{LocationName: "computer"},
-		ClientConfig: *sampleClientConfig(),
-	}
-}
-
-func TestConnectResult(t *testing.T) {
-	testCases := []*ConnectResult{
-		sampleTestConnectResult(),
+		&ConnectSuccess{
+			ServerLocationName: "SFO",
+			Config:             sampleClientConfig(),
+		},
+		&ConnectSuccess{
+			ServerLocationName: "",
+			Config:             nil,
+		},
 	}
 	for i, testCase := range testCases {
 		_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
@@ -49,7 +79,7 @@ func TestConnectParameters(t *testing.T) {
 	testCases := []*ConnectParameters{
 		sampleConnectParameters(),
 		sampleConnectParameters(func(c *ConnectParameters) {
-			c.Name = ""
+			c.IntentLabel = "my_intent"
 		}),
 		sampleConnectParameters(func(c *ConnectParameters) {
 			c.Tags = nil
@@ -89,8 +119,7 @@ func sampleConnectParameters(overrides ...func(*ConnectParameters)) *ConnectPara
 			},
 		},
 		CloudflaredVersion: "7.0",
-		Name:               "My Computer",
-		Group:              "www",
+		IntentLabel:        "my_intent",
 	}
 	sample.ensureNoZeroFields()
 	for _, f := range overrides {
@@ -19,6 +19,8 @@ struct TunnelRegistration {
    permanentFailure @3 :Bool;
    # Displayed to user
    tunnelID @4 :Text;
+    # How long should this connection wait to retry in seconds, if the error wasn't permanent
+    retryAfterSeconds @5 :UInt16;
 }

 struct RegistrationOptions {
@@ -44,6 +46,8 @@ struct RegistrationOptions {
    # cross stream compression setting, 0 - off, 3 - high
    compressionQuality @10 :UInt64;
    uuid @11 :Text;
+    # number of previous attempts to send RegisterTunnel/ReconnectTunnel
+    numPreviousAttempts @12 :UInt8;
 }

 struct CapnpConnectParameters {
@@ -57,18 +61,15 @@ struct CapnpConnectParameters {
    tags @3 :List(Tag);
    # release version of cloudflared
    cloudflaredVersion @4 :Text;
-    # friendly name for this cloudflared instance
-    name @5 :Text;
-    # group whose behavior this cloudflared instance will adopt
-    group @6 :Text;
+    # which intent this cloudflared instance should get its behaviour from
+    intentLabel @5 :Text;
 }

 struct ConnectResult {
-    err @0 :ConnectError;
-    # Information about the server this connection is established with
-    serverInfo @1 :ServerInfo;
-    # How this cloudflared instance should be configured
-    clientConfig @2 :ClientConfig;
+    result :union {
+        err @0 :ConnectError;
+        success @1 :ConnectSuccess;
+    }
 }

 struct ConnectError {
@@ -78,6 +79,13 @@ struct ConnectError {
    shouldRetry @2 :Bool;
 }

+struct ConnectSuccess {
+    # Information about the server this connection is established with
+    serverLocationName @0 :Text;
+    # How this cloudflared instance should be configured. This can be null if there isn't an intent for this origin yet
+    clientConfig @1 :ClientConfig;
+}
+
 struct ClientConfig {
    # Version of this configuration. This value is opaque, but is guaranteed
    # to monotonically increase in value. Any configuration supplied to
@@ -129,7 +137,7 @@ struct EdgeConnectionConfig {

 struct ReverseProxyConfig {
    tunnelHostname @0 :Text;
-    origin :union {
+    originConfig :union {
        http @1 :HTTPOriginConfig;
        websocket @2 :WebSocketOriginConfig;
        helloWorld @3 :HelloWorldOriginConfig;
@@ -270,11 +278,20 @@ struct FailedConfig {
 	reason @4 :Text;
 }

+struct AuthenticateResponse {
+    permanentErr @0 :Text;
+    retryableErr @1 :Text;
+    jwt @2 :Data;
+    hoursUntilRefresh @3 :UInt8;
+}
+
 interface TunnelServer {
    registerTunnel @0 (originCert :Data, hostname :Text, options :RegistrationOptions) -> (result :TunnelRegistration);
    getServerInfo @1 () -> (result :ServerInfo);
    unregisterTunnel @2 (gracePeriodNanoSec :Int64) -> ();
    connect @3 (parameters :CapnpConnectParameters) -> (result :ConnectResult);
+    authenticate @4 (originCert :Data, hostname :Text, options :RegistrationOptions) -> (result :AuthenticateResponse);
+    reconnectTunnel @5 (jwt :Data, hostname :Text, options :RegistrationOptions) -> (result :TunnelRegistration);
 }

 interface ClientService {
@@ -1,6 +1,7 @@
 package validation

 import (
+	"context"
 	"fmt"
 	"net"
 	"net/url"
@@ -11,13 +12,19 @@ import (

 	"github.com/pkg/errors"
 	"golang.org/x/net/idna"
+	"gopkg.in/coreos/go-oidc.v2"
 )

-const defaultScheme = "http"
+const (
+	defaultScheme   = "http"
+	accessDomain    = "cloudflareaccess.com"
+	accessCertPath  = "/cdn-cgi/access/certs"
+	accessJwtHeader = "Cf-access-jwt-assertion"
+)

 var (
 	supportedProtocols = []string{"http", "https", "rdp"}
-	validationTimeout = time.Duration(30 * time.Second)
+	validationTimeout  = time.Duration(30 * time.Second)
 )

 func ValidateHostname(hostname string) (string, error) {
@@ -53,6 +60,12 @@ func ValidateHostname(hostname string) (string, error) {

 }

+// ValidateUrl returns a validated version of `originUrl` with a scheme prepended (by default http://).
+// Note: when originUrl contains a scheme, the path is removed:
+//   ValidateUrl("https://localhost:8080/api/") => "https://localhost:8080"
+// but when it does not, the path is preserved:
+//   ValidateUrl("localhost:8080/api/") => "http://localhost:8080/api/"
+// This is arguably a bug, but changing it might break some cloudflared users.
 func ValidateUrl(originUrl string) (string, error) {
 	if originUrl == "" {
 		return "", fmt.Errorf("URL should not be empty")
@@ -114,6 +127,8 @@ func ValidateUrl(originUrl string) (string, error) {
 			if err != nil {
 				return "", fmt.Errorf("URL %s has invalid format", originUrl)
 			}
+			// This is why the path is preserved when `originUrl` doesn't have a schema.
+			// Using `parsedUrl.Port()` here, instead of `port`, would remove the path
 			return fmt.Sprintf("%s://%s", defaultScheme, net.JoinHostPort(hostname, port)), nil
 		}
 	}
@@ -197,3 +212,50 @@ func toggleProtocol(httpProtocol string) string {
 		return httpProtocol
 	}
 }
+
+// Access checks if a JWT from Cloudflare Access is valid.
+type Access struct {
+	verifier *oidc.IDTokenVerifier
+}
+
+func NewAccessValidator(ctx context.Context, domain, issuer, applicationAUD string) (*Access, error) {
+	domainURL, err := ValidateUrl(domain)
+	if err != nil {
+		return nil, err
+	}
+
+	issuerURL, err := ValidateUrl(issuer)
+	if err != nil {
+		return nil, err
+	}
+
+	// An issuerURL from Cloudflare Access will always use HTTPS.
+	issuerURL = strings.Replace(issuerURL, "http:", "https:", 1)
+
+	keySet := oidc.NewRemoteKeySet(ctx, domainURL+accessCertPath)
+	return &Access{oidc.NewVerifier(issuerURL, keySet, &oidc.Config{ClientID: applicationAUD})}, nil
+}
+
+func (a *Access) Validate(ctx context.Context, jwt string) error {
+	token, err := a.verifier.Verify(ctx, jwt)
+
+	if err != nil {
+		return errors.Wrapf(err, "token is invalid: %s", jwt)
+	}
+
+	// Perform extra sanity checks, just to be safe.
+
+	if token == nil {
+		return fmt.Errorf("token is nil: %s", jwt)
+	}
+
+	if !strings.HasSuffix(token.Issuer, accessDomain) {
+		return fmt.Errorf("token has non-cloudflare issuer of %s: %s", token.Issuer, jwt)
+	}
+
+	return nil
+}
+
+func (a *Access) ValidateRequest(ctx context.Context, r *http.Request) error {
+	return a.Validate(ctx, r.Header.Get(accessJwtHeader))
+}
@@ -53,98 +53,65 @@ func TestValidateHostname(t *testing.T) {
 }

 func TestValidateUrl(t *testing.T) {
+	type testCase struct {
+		input          string
+		expectedOutput string
+	}
+	testCases := []testCase{
+		{"http://localhost", "http://localhost"},
+		{"http://localhost/", "http://localhost"},
+		{"http://localhost/api", "http://localhost"},
+		{"http://localhost/api/", "http://localhost"},
+		{"https://localhost", "https://localhost"},
+		{"https://localhost/", "https://localhost"},
+		{"https://localhost/api", "https://localhost"},
+		{"https://localhost/api/", "https://localhost"},
+		{"https://localhost:8080", "https://localhost:8080"},
+		{"https://localhost:8080/", "https://localhost:8080"},
+		{"https://localhost:8080/api", "https://localhost:8080"},
+		{"https://localhost:8080/api/", "https://localhost:8080"},
+		{"localhost", "http://localhost"},
+		{"localhost/", "http://localhost/"},
+		{"localhost/api", "http://localhost/api"},
+		{"localhost/api/", "http://localhost/api/"},
+		{"localhost:8080", "http://localhost:8080"},
+		{"localhost:8080/", "http://localhost:8080/"},
+		{"localhost:8080/api", "http://localhost:8080/api"},
+		{"localhost:8080/api/", "http://localhost:8080/api/"},
+		{"localhost:8080/api/?asdf", "http://localhost:8080/api/?asdf"},
+		{"http://127.0.0.1:8080", "http://127.0.0.1:8080"},
+		{"127.0.0.1:8080", "http://127.0.0.1:8080"},
+		{"127.0.0.1", "http://127.0.0.1"},
+		{"https://127.0.0.1:8080", "https://127.0.0.1:8080"},
+		{"[::1]:8080", "http://[::1]:8080"},
+		{"http://[::1]", "http://[::1]"},
+		{"http://[::1]:8080", "http://[::1]:8080"},
+		{"[::1]", "http://[::1]"},
+		{"https://example.com", "https://example.com"},
+		{"example.com", "http://example.com"},
+		{"http://hello.example.com", "http://hello.example.com"},
+		{"hello.example.com", "http://hello.example.com"},
+		{"hello.example.com:8080", "http://hello.example.com:8080"},
+		{"https://hello.example.com:8080", "https://hello.example.com:8080"},
+		{"https://bücher.example.com", "https://xn--bcher-kva.example.com"},
+		{"bücher.example.com", "http://xn--bcher-kva.example.com"},
+		{"https%3A%2F%2Fhello.example.com", "https://hello.example.com"},
+		{"https://alex:12345@hello.example.com:8080", "https://hello.example.com:8080"},
+	}
+	for i, testCase := range testCases {
+		validUrl, err := ValidateUrl(testCase.input)
+		assert.NoError(t, err, "test case %v", i)
+		assert.Equal(t, testCase.expectedOutput, validUrl, "test case %v", i)
+	}
+
 	validUrl, err := ValidateUrl("")
 	assert.Equal(t, fmt.Errorf("URL should not be empty"), err)
 	assert.Empty(t, validUrl)

-	validUrl, err = ValidateUrl("https://localhost:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://localhost:8080", validUrl)
-
-	validUrl, err = ValidateUrl("localhost:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://localhost:8080", validUrl)
-
-	validUrl, err = ValidateUrl("http://localhost")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://localhost", validUrl)
-
-	validUrl, err = ValidateUrl("http://127.0.0.1:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://127.0.0.1:8080", validUrl)
-
-	validUrl, err = ValidateUrl("127.0.0.1:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://127.0.0.1:8080", validUrl)
-
-	validUrl, err = ValidateUrl("127.0.0.1")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://127.0.0.1", validUrl)
-
-	validUrl, err = ValidateUrl("https://127.0.0.1:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://127.0.0.1:8080", validUrl)
-
-	validUrl, err = ValidateUrl("[::1]:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://[::1]:8080", validUrl)
-
-	validUrl, err = ValidateUrl("http://[::1]")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://[::1]", validUrl)
-
-	validUrl, err = ValidateUrl("http://[::1]:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://[::1]:8080", validUrl)
-
-	validUrl, err = ValidateUrl("[::1]")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://[::1]", validUrl)
-
-	validUrl, err = ValidateUrl("https://example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://example.com", validUrl)
-
-	validUrl, err = ValidateUrl("example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://example.com", validUrl)
-
-	validUrl, err = ValidateUrl("http://hello.example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://hello.example.com", validUrl)
-
-	validUrl, err = ValidateUrl("hello.example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://hello.example.com", validUrl)
-
-	validUrl, err = ValidateUrl("hello.example.com:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://hello.example.com:8080", validUrl)
-
-	validUrl, err = ValidateUrl("https://hello.example.com:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://hello.example.com:8080", validUrl)
-
-	validUrl, err = ValidateUrl("https://bücher.example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://xn--bcher-kva.example.com", validUrl)
-
-	validUrl, err = ValidateUrl("bücher.example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "http://xn--bcher-kva.example.com", validUrl)
-
-	validUrl, err = ValidateUrl("https%3A%2F%2Fhello.example.com")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://hello.example.com", validUrl)
-
 	validUrl, err = ValidateUrl("ftp://alex:12345@hello.example.com:8080/robot.txt")
 	assert.Equal(t, "Currently Argo Tunnel does not support ftp protocol.", err.Error())
 	assert.Empty(t, validUrl)

-	validUrl, err = ValidateUrl("https://alex:12345@hello.example.com:8080")
-	assert.Nil(t, err)
-	assert.Equal(t, "https://hello.example.com:8080", validUrl)
-
 }

 func TestToggleProtocol(t *testing.T) {
@@ -320,6 +287,39 @@ func TestValidateHTTPService_NonResponsiveOrigin(t *testing.T) {
 	}
 }

+func TestNewAccessValidatorOk(t *testing.T) {
+	ctx := context.Background()
+	url := "test.cloudflareaccess.com"
+	access, err := NewAccessValidator(ctx, url, url, "")
+
+	assert.NoError(t, err)
+	assert.NotNil(t, access)
+
+	assert.Error(t, access.Validate(ctx, ""))
+	assert.Error(t, access.Validate(ctx, "invalid"))
+
+	req := httptest.NewRequest("GET", "https://test.cloudflareaccess.com", nil)
+	req.Header.Set(accessJwtHeader, "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c")
+	assert.Error(t, access.ValidateRequest(ctx, req))
+}
+
+func TestNewAccessValidatorErr(t *testing.T) {
+	ctx := context.Background()
+
+	urls := []string{
+		"",
+		"tcp://test.cloudflareaccess.com",
+		"wss://cloudflarenone.com",
+	}
+
+	for _, url := range urls {
+		access, err := NewAccessValidator(ctx, url, url, "")
+
+		assert.Error(t, err, url)
+		assert.Nil(t, access)
+	}
+}
+
 type testRoundTripper func(req *http.Request) (*http.Response, error)

 func (f testRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
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--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Chung-Ting Huang	8ee1faf317	Release 2019.11.2	2019-11-19 15:16:15 -06:00
Chung-Ting Huang	c5bacf4d95	TUN-2563: Exposes config_version metrics	2019-11-19 20:42:41 +00:00
Nick Vollmar	1ba5abfdb3	Release 2019.11.1	2019-11-19 19:56:25 +00:00
Adam Chalmers	7173da9359	TUN-2567: AuthOutcome can be turned back into AuthResponse	2019-11-19 04:34:00 +00:00
Nick Vollmar	0676923d24	TUN-2551: TunnelRPC definitions for ReconnectTunnel flow	2019-11-18 14:26:58 -06:00
Adam Chalmers	ca7fbf43da	TUN-2547: TunnelRPC definitions for Authenticate flow	2019-11-18 16:39:01 +00:00
Nick Vollmar	6ea9b5c3ff	TUN-2490: respect original representation of HTTP request path	2019-11-14 22:56:07 -06:00
Nick Vollmar	1d96bccc04	TUN-2178: public API to create new h2mux.MuxedStreamRequest	2019-11-13 14:04:19 -06:00
Adam Chalmers	c5af83af66	TUN-2053: Add a /healthcheck endpoint to the metrics server	2019-11-12 16:55:40 -06:00
Ashcon Partovi	759cd019be	Add db-connect, a SQL over HTTPS server	2019-11-12 20:34:39 +00:00
Chung-Ting Huang	13bf65ce4e	TUN-2506: Expose active streams metrics	2019-11-07 14:09:31 -06:00
Chung-Ting Huang	3a2e12818f	Release 2019.11.0	2019-11-07 10:11:56 -06:00
Nick Vollmar	e14ec1a1fb	TUN-2505: Terminate stream on receipt of RST_STREAM; MuxedStream.CloseWrite() should terminate the MuxedStream.Write() loop	2019-11-06 21:24:18 +00:00
Chung-Ting Huang	3a9a0a0d75	TUN-2489: Delete stream from activestreammap when read and write are both closed	2019-11-05 11:06:11 -06:00
Areg Harutyunyan	068b148e05	TUN-2500: Don't send client registration errors to Sentry	2019-11-05 12:29:11 +00:00
Nick Vollmar	e5335b6c1b	TUN-2502: Switch to go modules	2019-11-04 15:05:02 -06:00
Chung-Ting Huang	fa841fc89a	TUN-2451: Log inavlid path	2019-10-30 14:07:28 -05:00
Michael Borkenstein	e9a8c9850f	AUTH-2177: Reads and writes error streams	2019-10-25 19:44:14 +00:00
Chung-Ting Huang	a52f47c9a9	TUN-2460: Configure according to the ClientConfig recevied from a successful Connect	2019-10-24 14:53:14 +00:00
Michael Borkenstein	ad9559c66a	AUTH-2173: Prepends access login url with scheme if one doesnt exist	2019-10-23 20:35:12 +00:00
Chung-Ting Huang	7133eceb9b	TUN-2425: Enable cloudflared to serve multiple Hello World servers by having each of them create its own ServeMux	2019-10-22 10:09:59 -05:00
Areg Harutyunyan	e0c2758b64	Release 2019.10.4	2019-10-21 14:48:22 -05:00
Areg Harutyunyan	5464408ea7	TUN-2450: Remove Brew publishing formula	2019-10-21 13:44:49 -05:00
Areg Harutyunyan	802e538c42	Release 2019.10.3	2019-10-21 10:20:34 -05:00
Areg Harutyunyan	79065514ff	Merge remote-tracking branch 'upstream/master'	2019-10-18 15:33:27 -05:00
Michael Borkenstein	51acf2ef08	Release 2019.10.2	2019-10-18 13:11:07 -05:00
Felix Bünemann	1f6a330098	Fix #129 : Excessive memory usage streaming large files (#142 ) This drops the default size auf the h2mux write buffer from 512 MB to 1 MB. This massively reduces memory usage, since each stream has its own buffer.	2019-10-17 17:15:51 -05:00
Michael Borkenstein	28cc1c65af	AUTH-2167: Adds CLI option for host key directory	2019-10-17 16:31:43 -05:00
Michael Borkenstein	6322c5029d	Release 2019.10.1	2019-10-17 13:17:42 -05:00
Michael Borkenstein	4bb5b97518	Adds variable to fix windows build	2019-10-17 18:15:59 +00:00
Michael Borkenstein	99daa76715	Release 2019.10.0	2019-10-17 10:58:33 -05:00
Michael Borkenstein	babe684141	AUTH-2135: Adds support for IPv6 and tests	2019-10-16 16:06:07 -05:00
Michael Borkenstein	8b6e3bc1d1	AUTH-2159: Moves shutdownC close into error handling AUTH-2161: Lowers size of preamble length AUTH-2160: Fixes url parsing logic	2019-10-16 11:41:51 -05:00
Michael Borkenstein	95704b11fb	AUTH-2114: Uses short lived cert auth for outgoing client connection	2019-10-15 14:35:15 -05:00
Nick Vollmar	4d2583edf5	TUN-2344: log more details: http2.Framer.ErrorDetail() if available, connectionID	2019-10-15 10:59:24 -05:00
Michael Borkenstein	a4b3ee5959	AUTH-2105: Dont require --destination arg	2019-10-11 12:26:23 -05:00
Michael Borkenstein	91d9dca34e	AUTH-2105: Adds support for local forwarding. Refactor auditlogger creation. AUTH-2088: Adds dynamic destination routing	2019-10-10 15:25:03 -05:00
Michael Borkenstein	dbde3870da	AUTH-2089: Revise ssh server to function as a proxy	2019-10-07 13:04:04 -05:00
Chung-Ting Huang	b3bcce97da	Release 2019.9.2	2019-09-26 14:07:22 -05:00
Areg Harutyunyan	a99fac1e31	TUN-2355: Roll back TUN-2276 This reverts commit `02f0ed951f`.	2019-09-26 14:02:01 -05:00
Michael Borkenstein	71d66ae7ee	Release 2019.9.1	2019-09-26 10:18:28 -05:00
Michael Borkenstein	133e6fdc88	AUTH-2077: Quotes open browser command in windows	2019-09-24 18:27:37 +00:00
Michael Borkenstein	1d5cc45ac7	AUTH-2055: Verifies token at edge on access login	2019-09-24 18:22:33 +00:00
Nick Vollmar	a412f629c2	TUN-2334: remove tlsConfig.ServerName special case	2019-09-24 15:00:55 +00:00
Michael Borkenstein	979e5be8ab	AUTH-2067: Log commands correctly	2019-09-23 20:42:41 +00:00
Michael Borkenstein	2789d0cf36	AUTH-2052: Adds tests for SSH server	2019-09-23 09:19:43 -05:00
Chung-Ting Huang	5bcb2da0fe	TUN-2309: Split ConnectResult into ConnectError and ConnectSuccess, each implementing its own capnp serialization logic	2019-09-19 13:47:41 -05:00
Adam Chalmers	4f23da2a6d	TUN-2315: Replace Scope with IntentLabel	2019-09-18 15:11:46 -05:00
Chung-Ting Huang	fe032843f3	TUN-2307: Capnp is the only serialization format used in tunnelpogs	2019-09-17 16:29:50 +00:00
Michael Borkenstein	ff795a7beb	AUTH-2056: Writes stderr to its own stream for non-pty connections	2019-09-16 14:43:05 -05:00
Michael Borkenstein	40d9370bb6	AUTH-2050: Adds time.sleep to temporarily avoid hitting tunnel muxer dealock issue	2019-09-12 14:10:34 +00:00
Areg Harutyunyan	02f0ed951f	TUN-2276: Path encoding broken	2019-09-11 19:28:23 +00:00
Michael Borkenstein	c2a71c5a51	AUTH-2037: Adds support for ssh port forwarding	2019-09-11 10:41:09 -05:00
Dalton	945bf76897	AUTH-1942 added event log to ssh server	2019-09-10 10:16:32 -05:00
Michael Borkenstein	d3b254f9ae	AUTH-2036: Refactor user retrieval, shutdown after ssh server stops, add custom version string	2019-09-09 17:31:23 +00:00
Dalton	ee588eeeaa	AUTH-1943 hooked up uploader to logger, added timestamp to session logs, add tests	2019-09-06 15:57:32 -05:00
Adam Chalmers	dd521aba29	TUN-2280: Revert "TUN-2260: add name/group to CapnpConnectParameters, remove Scope" This reverts commit 817c3be9da5465043c2a2fda6c48f7ada760682e.	2019-09-06 15:59:32 +00:00
Adam Chalmers	a06390a078	TUN-2201: change SRV records used by cloudflared This changes cloudflarewarp.com to argotunnel.com and _warp to _origintunneld. We've changed which zone we host the SRV records for Argo Tunnel on.	2019-09-06 15:01:58 +00:00
				`@@ -0,0 +1 @@`
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