Release v0.17.1

Fix SIGINT problem in Docker image
Fix problem with Abstract Namespace Unix Domain
2026-06-08 18:30:49 +00:00 · 2024-09-03 21:20:57 -04:00 · 2024-09-03 21:20:10 -04:00 · 2024-09-03 20:56:16 -04:00 · 2024-09-03 18:00:12 -04:00 · 2024-09-03 17:29:28 -04:00
7 changed files with 428 additions and 116 deletions
@@ -0,0 +1,11 @@
+FROM yhirose4dockerhub/ubuntu-builder AS builder
+WORKDIR /build
+COPY httplib.h .
+COPY docker/main.cc .
+RUN g++ -std=c++23 -static -o server -O2 -I. -DCPPHTTPLIB_USE_POLL main.cc && strip server
+
+FROM scratch
+COPY --from=builder /build/server /server
+COPY docker/html/index.html /html/index.html
+EXPOSE 80
+CMD ["/server"]
@@ -848,6 +848,22 @@ $ ./split.py
 Wrote out/httplib.h and out/httplib.cc
 ```

+Dockerfile for Static HTTP Server
+---------------------------------
+
+Dockerfile for static HTTP server is available. Port number of this HTTP server is 80, and it serves static files from `/html` directory in the container.
+
+```bash
+> docker build -t cpp-httplib-server .
+...
+
+> docker run --init --rm -it -p 8080:80 -v ./docker/html:/html cpp-httplib-server
+Serving HTTP on 0.0.0.0 port 80 ...
+192.168.65.1 - - [31/Aug/2024:21:33:56 +0000] "GET / HTTP/1.1" 200 599 "-" "curl/8.7.1"
+192.168.65.1 - - [31/Aug/2024:21:34:26 +0000] "GET / HTTP/1.1" 200 599 "-" "Mozilla/5.0 ..."
+192.168.65.1 - - [31/Aug/2024:21:34:26 +0000] "GET /favicon.ico HTTP/1.1" 404 152 "-" "Mozilla/5.0 ..."
+```
+
 NOTE
 ----

@@ -0,0 +1,7 @@
+services:
+  http:
+    build: .
+    ports:
+      - "8080:80"
+    volumes:
+      - ./docker/html:/html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Welcome to cpp-httplib!</title>
+<style>
+html { color-scheme: light dark; }
+body { width: 35em; margin: 0 auto;
+font-family: Tahoma, Verdana, Arial, sans-serif; }
+</style>
+</head>
+<body>
+<h1>Welcome to cpp-httplib!</h1>
+<p>If you see this page, the cpp-httplib web server is successfully installed and
+working. Further configuration is required.</p>
+
+<p>For online documentation and support please refer to
+<a href="https://github.com/yhirose/cpp-httplib">github.com/yhirose/cpp-httplib</a>.<br/>
+
+<p><em>Thank you for using cpp-httplib.</em></p>
+</body>
+</html>
@@ -0,0 +1,81 @@
+//
+//  main.cc
+//
+//  Copyright (c) 2024 Yuji Hirose. All rights reserved.
+//  MIT License
+//
+
+#include <chrono>
+#include <ctime>
+#include <format>
+#include <iomanip>
+#include <iostream>
+#include <sstream>
+
+#include <httplib.h>
+
+constexpr auto error_html = R"(<html>
+<head><title>{} {}</title></head>
+<body>
+<center><h1>404 Not Found</h1></center>
+<hr><center>cpp-httplib/{}</center>
+</body>
+</html>
+)";
+
+void sigint_handler(int s) { exit(1); }
+
+std::string time_local() {
+  auto p = std::chrono::system_clock::now();
+  auto t = std::chrono::system_clock::to_time_t(p);
+
+  std::stringstream ss;
+  ss << std::put_time(std::localtime(&t), "%d/%b/%Y:%H:%M:%S %z");
+  return ss.str();
+}
+
+std::string log(auto &req, auto &res) {
+  auto remote_user = "-"; // TODO:
+  auto request = std::format("{} {} {}", req.method, req.path, req.version);
+  auto body_bytes_sent = res.get_header_value("Content-Length");
+  auto http_referer = "-"; // TODO:
+  auto http_user_agent = req.get_header_value("User-Agent", "-");
+
+  // NOTE: From NGINX defualt access log format
+  // log_format combined '$remote_addr - $remote_user [$time_local] '
+  //                     '"$request" $status $body_bytes_sent '
+  //                     '"$http_referer" "$http_user_agent"';
+  return std::format(R"({} - {} [{}] "{}" {} {} "{}" "{}")", req.remote_addr,
+                     remote_user, time_local(), request, res.status,
+                     body_bytes_sent, http_referer, http_user_agent);
+}
+
+int main(int argc, const char **argv) {
+  signal(SIGINT, sigint_handler);
+
+  auto base_dir = "./html";
+  auto host = "0.0.0.0";
+  auto port = 80;
+
+  httplib::Server svr;
+
+  svr.set_error_handler([](auto & /*req*/, auto &res) {
+    auto body =
+        std::format(error_html, res.status, httplib::status_message(res.status),
+                    CPPHTTPLIB_VERSION);
+
+    res.set_content(body, "text/html");
+  });
+
+  svr.set_logger(
+      [](auto &req, auto &res) { std::cout << log(req, res) << std::endl; });
+
+  svr.set_mount_point("/", base_dir);
+
+  std::cout << std::format("Serving HTTP on {0} port {1} ...", host, port)
+            << std::endl;
+
+  auto ret = svr.listen(host, port);
+
+  return ret ? 0 : 1;
+}
@@ -8,7 +8,7 @@
 #ifndef CPPHTTPLIB_HTTPLIB_H
 #define CPPHTTPLIB_HTTPLIB_H

-#define CPPHTTPLIB_VERSION "0.16.3"
+#define CPPHTTPLIB_VERSION "0.17.1"

 /*
 * Configuration
@@ -19,7 +19,7 @@
 #endif

 #ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT
-#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
+#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 100
 #endif

 #ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND
@@ -90,6 +90,10 @@
 #define CPPHTTPLIB_TCP_NODELAY false
 #endif

+#ifndef CPPHTTPLIB_IPV6_V6ONLY
+#define CPPHTTPLIB_IPV6_V6ONLY false
+#endif
+
 #ifndef CPPHTTPLIB_RECV_BUFSIZ
 #define CPPHTTPLIB_RECV_BUFSIZ size_t(16384u)
 #endif
@@ -565,8 +569,10 @@ struct Request {
 #endif

  bool has_header(const std::string &key) const;
-  std::string get_header_value(const std::string &key, size_t id = 0) const;
-  uint64_t get_header_value_u64(const std::string &key, size_t id = 0) const;
+  std::string get_header_value(const std::string &key, const char *def = "",
+                               size_t id = 0) const;
+  uint64_t get_header_value_u64(const std::string &key, uint64_t def = 0,
+                                size_t id = 0) const;
  size_t get_header_value_count(const std::string &key) const;
  void set_header(const std::string &key, const std::string &val);

@@ -597,8 +603,10 @@ struct Response {
  std::string location; // Redirect location

  bool has_header(const std::string &key) const;
-  std::string get_header_value(const std::string &key, size_t id = 0) const;
-  uint64_t get_header_value_u64(const std::string &key, size_t id = 0) const;
+  std::string get_header_value(const std::string &key, const char *def = "",
+                               size_t id = 0) const;
+  uint64_t get_header_value_u64(const std::string &key, uint64_t def = 0,
+                                size_t id = 0) const;
  size_t get_header_value_count(const std::string &key) const;
  void set_header(const std::string &key, const std::string &val);

@@ -896,6 +904,7 @@ public:

  Server &set_address_family(int family);
  Server &set_tcp_nodelay(bool on);
+  Server &set_ipv6_v6only(bool on);
  Server &set_socket_options(SocketOptions socket_options);

  Server &set_default_headers(Headers headers);
@@ -928,6 +937,7 @@ public:
  bool is_running() const;
  void wait_until_ready() const;
  void stop();
+  void decommission();

  std::function<TaskQueue *(void)> new_task_queue;

@@ -1002,7 +1012,7 @@ private:
  virtual bool process_and_close_socket(socket_t sock);

  std::atomic<bool> is_running_{false};
-  std::atomic<bool> done_{false};
+  std::atomic<bool> is_decommisioned{false};

  struct MountPointEntry {
    std::string mount_point;
@@ -1035,6 +1045,7 @@ private:

  int address_family_ = AF_UNSPEC;
  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
+  bool ipv6_v6only_ = CPPHTTPLIB_IPV6_V6ONLY;
  SocketOptions socket_options_ = default_socket_options;

  Headers default_headers_;
@@ -1091,9 +1102,10 @@ public:
  // Request Headers
  bool has_request_header(const std::string &key) const;
  std::string get_request_header_value(const std::string &key,
+                                       const char *def = "",
                                       size_t id = 0) const;
  uint64_t get_request_header_value_u64(const std::string &key,
-                                        size_t id = 0) const;
+                                        uint64_t def = 0, size_t id = 0) const;
  size_t get_request_header_value_count(const std::string &key) const;

 private:
@@ -1316,6 +1328,7 @@ public:

  void set_address_family(int family);
  void set_tcp_nodelay(bool on);
+  void set_ipv6_v6only(bool on);
  void set_socket_options(SocketOptions socket_options);

  void set_connection_timeout(time_t sec, time_t usec = 0);
@@ -1453,6 +1466,7 @@ protected:

  int address_family_ = AF_UNSPEC;
  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
+  bool ipv6_v6only_ = CPPHTTPLIB_IPV6_V6ONLY;
  SocketOptions socket_options_ = nullptr;

  bool compress_ = false;
@@ -1914,8 +1928,8 @@ inline void duration_to_sec_and_usec(const T &duration, U callback) {
 }

 inline uint64_t get_header_value_u64(const Headers &headers,
-                                     const std::string &key, size_t id,
-                                     uint64_t def) {
+                                     const std::string &key, uint64_t def,
+                                     size_t id) {
  auto rng = headers.equal_range(key);
  auto it = rng.first;
  std::advance(it, static_cast<ssize_t>(id));
@@ -1928,13 +1942,13 @@ inline uint64_t get_header_value_u64(const Headers &headers,
 } // namespace detail

 inline uint64_t Request::get_header_value_u64(const std::string &key,
-                                              size_t id) const {
-  return detail::get_header_value_u64(headers, key, id, 0);
+                                              uint64_t def, size_t id) const {
+  return detail::get_header_value_u64(headers, key, def, id);
 }

 inline uint64_t Response::get_header_value_u64(const std::string &key,
-                                               size_t id) const {
-  return detail::get_header_value_u64(headers, key, id, 0);
+                                               uint64_t def, size_t id) const {
+  return detail::get_header_value_u64(headers, key, def, id);
 }

 template <typename... Args>
@@ -1962,19 +1976,19 @@ inline ssize_t Stream::write_format(const char *fmt, const Args &...args) {
 }

 inline void default_socket_options(socket_t sock) {
-  int yes = 1;
+  int opt = 1;
 #ifdef _WIN32
  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
-             reinterpret_cast<const char *>(&yes), sizeof(yes));
+             reinterpret_cast<const char *>(&opt), sizeof(opt));
  setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
-             reinterpret_cast<const char *>(&yes), sizeof(yes));
+             reinterpret_cast<const char *>(&opt), sizeof(opt));
 #else
 #ifdef SO_REUSEPORT
  setsockopt(sock, SOL_SOCKET, SO_REUSEPORT,
-             reinterpret_cast<const void *>(&yes), sizeof(yes));
+             reinterpret_cast<const void *>(&opt), sizeof(opt));
 #else
  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
-             reinterpret_cast<const void *>(&yes), sizeof(yes));
+             reinterpret_cast<const void *>(&opt), sizeof(opt));
 #endif
 #endif
 }
@@ -2119,8 +2133,9 @@ inline std::ostream &operator<<(std::ostream &os, const Error &obj) {
 }

 inline uint64_t Result::get_request_header_value_u64(const std::string &key,
+                                                     uint64_t def,
                                                     size_t id) const {
-  return detail::get_header_value_u64(request_headers_, key, id, 0);
+  return detail::get_header_value_u64(request_headers_, key, def, id);
 }

 template <class Rep, class Period>
@@ -2183,6 +2198,10 @@ make_basic_authentication_header(const std::string &username,

 namespace detail {

+bool is_file(const std::string &path);
+
+bool is_dir(const std::string &path);
+
 std::string encode_query_param(const std::string &value);

 std::string decode_url(const std::string &s, bool convert_plus_to_space);
@@ -2212,15 +2231,18 @@ bool process_client_socket(socket_t sock, time_t read_timeout_sec,
                           time_t write_timeout_usec,
                           std::function<bool(Stream &)> callback);

-socket_t create_client_socket(
-    const std::string &host, const std::string &ip, int port,
-    int address_family, bool tcp_nodelay, SocketOptions socket_options,
-    time_t connection_timeout_sec, time_t connection_timeout_usec,
-    time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec,
-    time_t write_timeout_usec, const std::string &intf, Error &error);
+socket_t create_client_socket(const std::string &host, const std::string &ip,
+                              int port, int address_family, bool tcp_nodelay,
+                              bool ipv6_v6only, SocketOptions socket_options,
+                              time_t connection_timeout_sec,
+                              time_t connection_timeout_usec,
+                              time_t read_timeout_sec, time_t read_timeout_usec,
+                              time_t write_timeout_sec,
+                              time_t write_timeout_usec,
+                              const std::string &intf, Error &error);

 const char *get_header_value(const Headers &headers, const std::string &key,
-                             size_t id = 0, const char *def = nullptr);
+                             const char *def, size_t id);

 std::string params_to_query_str(const Params &params);

@@ -2507,20 +2529,6 @@ inline std::string base64_encode(const std::string &in) {
  return out;
 }

-inline bool is_file(const std::string &path) {
-#ifdef _WIN32
-  return _access_s(path.c_str(), 0) == 0;
-#else
-  struct stat st;
-  return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
-#endif
-}
-
-inline bool is_dir(const std::string &path) {
-  struct stat st;
-  return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);
-}
-
 inline bool is_valid_path(const std::string &path) {
  size_t level = 0;
  size_t i = 0;
@@ -2563,6 +2571,16 @@ inline bool is_valid_path(const std::string &path) {
  return true;
 }

+inline bool is_file(const std::string &path) {
+  struct stat st;
+  return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
+}
+
+inline bool is_dir(const std::string &path) {
+  struct stat st;
+  return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);
+}
+
 inline std::string encode_query_param(const std::string &value) {
  std::ostringstream escaped;
  escaped.fill('0');
@@ -2772,6 +2790,10 @@ inline bool stream_line_reader::getline() {
  fixed_buffer_used_size_ = 0;
  glowable_buffer_.clear();

+#ifndef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR
+  char prev_byte = 0;
+#endif
+
  for (size_t i = 0;; i++) {
    char byte;
    auto n = strm_.read(&byte, 1);
@@ -2788,7 +2810,12 @@ inline bool stream_line_reader::getline() {

    append(byte);

+#ifdef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR
    if (byte == '\n') { break; }
+#else
+    if (prev_byte == '\r' && byte == '\n') { break; }
+    prev_byte = byte;
+#endif
  }

  return true;
@@ -2829,9 +2856,7 @@ inline bool mmap::open(const char *path) {
    wpath += path[i];
  }

-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM |   \
-                            WINAPI_PARTITION_GAMES) &&                         \
-    (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
+#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
  hFile_ = ::CreateFile2(wpath.c_str(), GENERIC_READ, FILE_SHARE_READ,
                         OPEN_EXISTING, NULL);
 #else
@@ -2841,26 +2866,23 @@ inline bool mmap::open(const char *path) {

  if (hFile_ == INVALID_HANDLE_VALUE) { return false; }

-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM |   \
-                            WINAPI_PARTITION_GAMES)
  LARGE_INTEGER size{};
  if (!::GetFileSizeEx(hFile_, &size)) { return false; }
+  // If the following line doesn't compile due to QuadPart, update Windows SDK.
+  // See:
+  // https://github.com/yhirose/cpp-httplib/issues/1903#issuecomment-2316520721
+  if (static_cast<ULONGLONG>(size.QuadPart) >
+      std::numeric_limits<decltype(size_)>::max()) {
+    // `size_t` might be 32-bits, on 32-bits Windows.
+    return false;
+  }
  size_ = static_cast<size_t>(size.QuadPart);
-#else
-  DWORD sizeHigh;
-  DWORD sizeLow;
-  sizeLow = ::GetFileSize(hFile_, &sizeHigh);
-  if (sizeLow == INVALID_FILE_SIZE) { return false; }
-  size_ = (static_cast<size_t>(sizeHigh) << (sizeof(DWORD) * 8)) | sizeLow;
-#endif

-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && \
-    (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
+#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
  hMapping_ =
      ::CreateFileMappingFromApp(hFile_, NULL, PAGE_READONLY, size_, NULL);
 #else
-  hMapping_ = ::CreateFileMappingW(hFile_, NULL, PAGE_READONLY, size.HighPart,
-                                   size.LowPart, NULL);
+  hMapping_ = ::CreateFileMappingW(hFile_, NULL, PAGE_READONLY, 0, 0, NULL);
 #endif

  if (hMapping_ == NULL) {
@@ -2868,8 +2890,7 @@ inline bool mmap::open(const char *path) {
    return false;
  }

-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && \
-    (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
+#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
  addr_ = ::MapViewOfFileFromApp(hMapping_, FILE_MAP_READ, 0, 0);
 #else
  addr_ = ::MapViewOfFile(hMapping_, FILE_MAP_READ, 0, 0, 0);
@@ -2945,7 +2966,10 @@ template <typename T> inline ssize_t handle_EINTR(T fn) {
  ssize_t res = 0;
  while (true) {
    res = fn();
-    if (res < 0 && errno == EINTR) { continue; }
+    if (res < 0 && errno == EINTR) {
+      std::this_thread::sleep_for(std::chrono::milliseconds{1});
+      continue;
+    }
    break;
  }
  return res;
@@ -3226,10 +3250,28 @@ inline int shutdown_socket(socket_t sock) {
 #endif
 }

+inline std::string escape_abstract_namespace_unix_domain(const std::string& s) {
+  if (s.size() > 1 && s[0] == '\0') {
+    auto ret = s;
+    ret[0] = '@';
+    return ret;
+  }
+  return s;
+}
+
+inline std::string unescape_abstract_namespace_unix_domain(const std::string& s) {
+  if (s.size() > 1 && s[0] == '@') {
+    auto ret = s;
+    ret[0] = '\0';
+    return ret;
+  }
+  return s;
+}
+
 template <typename BindOrConnect>
 socket_t create_socket(const std::string &host, const std::string &ip, int port,
                       int address_family, int socket_flags, bool tcp_nodelay,
-                       SocketOptions socket_options,
+                       bool ipv6_v6only, SocketOptions socket_options,
                       BindOrConnect bind_or_connect) {
  // Get address info
  const char *node = nullptr;
@@ -3238,7 +3280,7 @@ socket_t create_socket(const std::string &host, const std::string &ip, int port,

  memset(&hints, 0, sizeof(struct addrinfo));
  hints.ai_socktype = SOCK_STREAM;
-  hints.ai_protocol = 0;
+  hints.ai_protocol = IPPROTO_IP;

  if (!ip.empty()) {
    node = ip.c_str();
@@ -3266,7 +3308,9 @@ socket_t create_socket(const std::string &host, const std::string &ip, int port,
    if (sock != INVALID_SOCKET) {
      sockaddr_un addr{};
      addr.sun_family = AF_UNIX;
-      std::copy(host.begin(), host.end(), addr.sun_path);
+
+      auto unescaped_host = unescape_abstract_namespace_unix_domain(host);
+      std::copy(unescaped_host.begin(), unescaped_host.end(), addr.sun_path);

      hints.ai_addr = reinterpret_cast<sockaddr *>(&addr);
      hints.ai_addrlen = static_cast<socklen_t>(
@@ -3340,29 +3384,29 @@ socket_t create_socket(const std::string &host, const std::string &ip, int port,
 #endif

    if (tcp_nodelay) {
-      auto yes = 1;
+      auto opt = 1;
 #ifdef _WIN32
      setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
-                 reinterpret_cast<const char *>(&yes), sizeof(yes));
+                 reinterpret_cast<const char *>(&opt), sizeof(opt));
 #else
      setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
-                 reinterpret_cast<const void *>(&yes), sizeof(yes));
+                 reinterpret_cast<const void *>(&opt), sizeof(opt));
+#endif
+    }
+
+    if (rp->ai_family == AF_INET6) {
+      auto opt = ipv6_v6only ? 1 : 0;
+#ifdef _WIN32
+      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
+                 reinterpret_cast<const char *>(&opt), sizeof(opt));
+#else
+      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
+                 reinterpret_cast<const void *>(&opt), sizeof(opt));
 #endif
    }

    if (socket_options) { socket_options(sock); }

-    if (rp->ai_family == AF_INET6) {
-      auto no = 0;
-#ifdef _WIN32
-      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
-                 reinterpret_cast<const char *>(&no), sizeof(no));
-#else
-      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
-                 reinterpret_cast<const void *>(&no), sizeof(no));
-#endif
-    }
-
    // bind or connect
    auto quit = false;
    if (bind_or_connect(sock, *rp, quit)) {
@@ -3467,12 +3511,14 @@ inline std::string if2ip(int address_family, const std::string &ifn) {

 inline socket_t create_client_socket(
    const std::string &host, const std::string &ip, int port,
-    int address_family, bool tcp_nodelay, SocketOptions socket_options,
-    time_t connection_timeout_sec, time_t connection_timeout_usec,
-    time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec,
+    int address_family, bool tcp_nodelay, bool ipv6_v6only,
+    SocketOptions socket_options, time_t connection_timeout_sec,
+    time_t connection_timeout_usec, time_t read_timeout_sec,
+    time_t read_timeout_usec, time_t write_timeout_sec,
    time_t write_timeout_usec, const std::string &intf, Error &error) {
  auto sock = create_socket(
-      host, ip, port, address_family, 0, tcp_nodelay, std::move(socket_options),
+      host, ip, port, address_family, 0, tcp_nodelay, ipv6_v6only,
+      std::move(socket_options),
      [&](socket_t sock2, struct addrinfo &ai, bool &quit) -> bool {
        if (!intf.empty()) {
 #ifdef USE_IF2IP
@@ -3948,8 +3994,8 @@ inline bool has_header(const Headers &headers, const std::string &key) {
 }

 inline const char *get_header_value(const Headers &headers,
-                                    const std::string &key, size_t id,
-                                    const char *def) {
+                                    const std::string &key, const char *def,
+                                    size_t id) {
  auto rng = headers.equal_range(key);
  auto it = rng.first;
  std::advance(it, static_cast<ssize_t>(id));
@@ -3995,6 +4041,18 @@ inline bool parse_header(const char *beg, const char *end, T fn) {
    auto val = compare_case_ignore(key, "Location")
                   ? std::string(p, end)
                   : decode_url(std::string(p, end), false);
+
+    // NOTE: From RFC 9110:
+    // Field values containing CR, LF, or NUL characters are
+    // invalid and dangerous, due to the varying ways that
+    // implementations might parse and interpret those
+    // characters; a recipient of CR, LF, or NUL within a field
+    // value MUST either reject the message or replace each of
+    // those characters with SP before further processing or
+    // forwarding of that message.
+    static const std::string CR_LF_NUL("\r\n\0", 3);
+    if (val.find_first_of(CR_LF_NUL) != std::string::npos) { return false; }
+
    fn(key, val);
    return true;
  }
@@ -4032,10 +4090,12 @@ inline bool read_headers(Stream &strm, Headers &headers) {
    // Exclude line terminator
    auto end = line_reader.ptr() + line_reader.size() - line_terminator_len;

-    parse_header(line_reader.ptr(), end,
-                 [&](const std::string &key, const std::string &val) {
-                   headers.emplace(key, val);
-                 });
+    if (!parse_header(line_reader.ptr(), end,
+                      [&](const std::string &key, std::string &val) {
+                        headers.emplace(key, val);
+                      })) {
+      return false;
+    }
  }

  return true;
@@ -4146,7 +4206,7 @@ inline bool read_content_chunked(Stream &strm, T &x,

 inline bool is_chunked_transfer_encoding(const Headers &headers) {
  return compare_case_ignore(
-      get_header_value(headers, "Transfer-Encoding", 0, ""), "chunked");
+      get_header_value(headers, "Transfer-Encoding", "", 0), "chunked");
 }

 template <typename T, typename U>
@@ -5489,8 +5549,8 @@ inline bool Request::has_header(const std::string &key) const {
 }

 inline std::string Request::get_header_value(const std::string &key,
-                                             size_t id) const {
-  return detail::get_header_value(headers, key, id, "");
+                                             const char *def, size_t id) const {
+  return detail::get_header_value(headers, key, def, id);
 }

 inline size_t Request::get_header_value_count(const std::string &key) const {
@@ -5554,8 +5614,9 @@ inline bool Response::has_header(const std::string &key) const {
 }

 inline std::string Response::get_header_value(const std::string &key,
+                                              const char *def,
                                              size_t id) const {
-  return detail::get_header_value(headers, key, id, "");
+  return detail::get_header_value(headers, key, def, id);
 }

 inline size_t Response::get_header_value_count(const std::string &key) const {
@@ -5640,8 +5701,9 @@ inline bool Result::has_request_header(const std::string &key) const {
 }

 inline std::string Result::get_request_header_value(const std::string &key,
+                                                    const char *def,
                                                    size_t id) const {
-  return detail::get_header_value(request_headers_, key, id, "");
+  return detail::get_header_value(request_headers_, key, def, id);
 }

 inline size_t
@@ -6049,6 +6111,11 @@ inline Server &Server::set_tcp_nodelay(bool on) {
  return *this;
 }

+inline Server &Server::set_ipv6_v6only(bool on) {
+  ipv6_v6only_ = on;
+  return *this;
+}
+
 inline Server &Server::set_socket_options(SocketOptions socket_options) {
  socket_options_ = std::move(socket_options);
  return *this;
@@ -6100,27 +6167,27 @@ inline Server &Server::set_payload_max_length(size_t length) {

 inline bool Server::bind_to_port(const std::string &host, int port,
                                 int socket_flags) {
-  return bind_internal(host, port, socket_flags) >= 0;
+  auto ret = bind_internal(host, port, socket_flags);
+  if (ret == -1) { is_decommisioned = true; }
+  return ret >= 0;
 }
 inline int Server::bind_to_any_port(const std::string &host, int socket_flags) {
-  return bind_internal(host, 0, socket_flags);
+  auto ret = bind_internal(host, 0, socket_flags);
+  if (ret == -1) { is_decommisioned = true; }
+  return ret;
 }

-inline bool Server::listen_after_bind() {
-  auto se = detail::scope_exit([&]() { done_ = true; });
-  return listen_internal();
-}
+inline bool Server::listen_after_bind() { return listen_internal(); }

 inline bool Server::listen(const std::string &host, int port,
                           int socket_flags) {
-  auto se = detail::scope_exit([&]() { done_ = true; });
  return bind_to_port(host, port, socket_flags) && listen_internal();
 }

 inline bool Server::is_running() const { return is_running_; }

 inline void Server::wait_until_ready() const {
-  while (!is_running() && !done_) {
+  while (!is_running_ && !is_decommisioned) {
    std::this_thread::sleep_for(std::chrono::milliseconds{1});
  }
 }
@@ -6132,8 +6199,11 @@ inline void Server::stop() {
    detail::shutdown_socket(sock);
    detail::close_socket(sock);
  }
+  is_decommisioned = false;
 }

+inline void Server::decommission() { is_decommisioned = true; }
+
 inline bool Server::parse_request_line(const char *s, Request &req) const {
  auto len = strlen(s);
  if (len < 2 || s[len - 2] != '\r' || s[len - 1] != '\n') { return false; }
@@ -6476,7 +6546,7 @@ Server::create_server_socket(const std::string &host, int port,
                             SocketOptions socket_options) const {
  return detail::create_socket(
      host, std::string(), port, address_family_, socket_flags, tcp_nodelay_,
-      std::move(socket_options),
+      ipv6_v6only_, std::move(socket_options),
      [](socket_t sock, struct addrinfo &ai, bool & /*quit*/) -> bool {
        if (::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
          return false;
@@ -6488,6 +6558,8 @@ Server::create_server_socket(const std::string &host, int port,

 inline int Server::bind_internal(const std::string &host, int port,
                                 int socket_flags) {
+  if (is_decommisioned) { return -1; }
+
  if (!is_valid()) { return -1; }

  svr_sock_ = create_server_socket(host, port, socket_flags, socket_options_);
@@ -6513,6 +6585,8 @@ inline int Server::bind_internal(const std::string &host, int port,
 }

 inline bool Server::listen_internal() {
+  if (is_decommisioned) { return false; }
+
  auto ret = true;
  is_running_ = true;
  auto se = detail::scope_exit([&]() { is_running_ = false; });
@@ -6602,6 +6676,7 @@ inline bool Server::listen_internal() {
    task_queue->shutdown();
  }

+  is_decommisioned = !ret;
  return ret;
 }

@@ -6989,9 +7064,10 @@ inline ClientImpl::ClientImpl(const std::string &host, int port)
 inline ClientImpl::ClientImpl(const std::string &host, int port,
                              const std::string &client_cert_path,
                              const std::string &client_key_path)
-    : host_(host), port_(port),
-      host_and_port_(adjust_host_string(host) + ":" + std::to_string(port)),
-      client_cert_path_(client_cert_path), client_key_path_(client_key_path) {}
+    : host_(detail::escape_abstract_namespace_unix_domain(host)), port_(port),
+      host_and_port_(adjust_host_string(host_) + ":" + std::to_string(port)),
+      client_cert_path_(client_cert_path), client_key_path_(client_key_path) {
+    }

 inline ClientImpl::~ClientImpl() {
  std::lock_guard<std::mutex> guard(socket_mutex_);
@@ -7021,6 +7097,7 @@ inline void ClientImpl::copy_settings(const ClientImpl &rhs) {
  url_encode_ = rhs.url_encode_;
  address_family_ = rhs.address_family_;
  tcp_nodelay_ = rhs.tcp_nodelay_;
+  ipv6_v6only_ = rhs.ipv6_v6only_;
  socket_options_ = rhs.socket_options_;
  compress_ = rhs.compress_;
  decompress_ = rhs.decompress_;
@@ -7049,9 +7126,9 @@ inline socket_t ClientImpl::create_client_socket(Error &error) const {
  if (!proxy_host_.empty() && proxy_port_ != -1) {
    return detail::create_client_socket(
        proxy_host_, std::string(), proxy_port_, address_family_, tcp_nodelay_,
-        socket_options_, connection_timeout_sec_, connection_timeout_usec_,
-        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
-        write_timeout_usec_, interface_, error);
+        ipv6_v6only_, socket_options_, connection_timeout_sec_,
+        connection_timeout_usec_, read_timeout_sec_, read_timeout_usec_,
+        write_timeout_sec_, write_timeout_usec_, interface_, error);
  }

  // Check is custom IP specified for host_
@@ -7060,10 +7137,10 @@ inline socket_t ClientImpl::create_client_socket(Error &error) const {
  if (it != addr_map_.end()) { ip = it->second; }

  return detail::create_client_socket(
-      host_, ip, port_, address_family_, tcp_nodelay_, socket_options_,
-      connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_,
-      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_,
-      error);
+      host_, ip, port_, address_family_, tcp_nodelay_, ipv6_v6only_,
+      socket_options_, connection_timeout_sec_, connection_timeout_usec_,
+      read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
+      write_timeout_usec_, interface_, error);
 }

 inline bool ClientImpl::create_and_connect_socket(Socket &socket,
@@ -7700,6 +7777,14 @@ inline bool ClientImpl::process_request(Stream &strm, Request &req,
      return ret;
    };

+    if (res.has_header("Content-Length")) {
+      if (!req.content_receiver) {
+        auto len = std::min<size_t>(res.get_header_value_u64("Content-Length"),
+                                    res.body.max_size());
+        if (len > 0) { res.body.reserve(len); }
+      }
+    }
+
    int dummy_status;
    if (!detail::read_content(strm, res, (std::numeric_limits<size_t>::max)(),
                              dummy_status, std::move(progress), std::move(out),
@@ -8459,6 +8544,8 @@ inline void ClientImpl::set_address_family(int family) {

 inline void ClientImpl::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; }

+inline void ClientImpl::set_ipv6_v6only(bool on) { ipv6_v6only_ = on; }
+
 inline void ClientImpl::set_socket_options(SocketOptions socket_options) {
  socket_options_ = std::move(socket_options);
 }
@@ -467,25 +467,25 @@ TEST(ParseMultipartBoundaryTest, ValueWithQuotesAndCharset) {

 TEST(GetHeaderValueTest, DefaultValue) {
  Headers headers = {{"Dummy", "Dummy"}};
-  auto val = detail::get_header_value(headers, "Content-Type", 0, "text/plain");
+  auto val = detail::get_header_value(headers, "Content-Type", "text/plain", 0);
  EXPECT_STREQ("text/plain", val);
 }

 TEST(GetHeaderValueTest, DefaultValueInt) {
  Headers headers = {{"Dummy", "Dummy"}};
-  auto val = detail::get_header_value_u64(headers, "Content-Length", 0, 100);
+  auto val = detail::get_header_value_u64(headers, "Content-Length", 100, 0);
  EXPECT_EQ(100ull, val);
 }

 TEST(GetHeaderValueTest, RegularValue) {
  Headers headers = {{"Content-Type", "text/html"}, {"Dummy", "Dummy"}};
-  auto val = detail::get_header_value(headers, "Content-Type", 0, "text/plain");
+  auto val = detail::get_header_value(headers, "Content-Type", "text/plain", 0);
  EXPECT_STREQ("text/html", val);
 }

 TEST(GetHeaderValueTest, RegularValueWithDifferentCase) {
  Headers headers = {{"Content-Type", "text/html"}, {"Dummy", "Dummy"}};
-  auto val = detail::get_header_value(headers, "content-type", 0, "text/plain");
+  auto val = detail::get_header_value(headers, "content-type", "text/plain", 0);
  EXPECT_STREQ("text/html", val);
 }

@@ -4652,7 +4652,7 @@ static bool send_request(time_t read_timeout_sec, const std::string &req,
  auto error = Error::Success;

  auto client_sock = detail::create_client_socket(
-      HOST, "", PORT, AF_UNSPEC, false, nullptr,
+      HOST, "", PORT, AF_UNSPEC, false, false, nullptr,
      /*connection_timeout_sec=*/5, 0,
      /*read_timeout_sec=*/5, 0,
      /*write_timeout_sec=*/5, 0, std::string(), error);
@@ -4718,6 +4718,9 @@ static void test_raw_request(const std::string &req,
  svr.Put("/put_hi", [&](const Request & /*req*/, Response &res) {
    res.set_content("ok", "text/plain");
  });
+  svr.Get("/header_field_value_check", [&](const Request &/*req*/, Response &res) {
+    res.set_content("ok", "text/plain");
+  });

  // Server read timeout must be longer than the client read timeout for the
  // bug to reproduce, probably to force the server to process a request
@@ -4851,6 +4854,14 @@ TEST(ServerRequestParsingTest, InvalidSpaceInURL) {
  EXPECT_EQ("HTTP/1.1 400 Bad Request", out.substr(0, 24));
 }

+TEST(ServerRequestParsingTest, InvalidFieldValueContains_CR_LF_NUL) {
+  std::string out;
+  std::string request(
+      "GET /header_field_value_check HTTP/1.1\r\nTest: [\r\x00\n]\r\n\r\n", 55);
+  test_raw_request(request, &out);
+  EXPECT_EQ("HTTP/1.1 400 Bad Request", out.substr(0, 24));
+}
+
 TEST(ServerStopTest, StopServerWithChunkedTransmission) {
  Server svr;

@@ -4926,6 +4937,52 @@ TEST(ServerStopTest, ListenFailure) {
  t.join();
 }

+TEST(ServerStopTest, Decommision) {
+  Server svr;
+
+  svr.Get("/hi", [&](const Request &, Response &res) { res.body = "hi..."; });
+
+  for (int i = 0; i < 4; i++) {
+    auto is_even = !(i % 2);
+
+    std::thread t{[&] {
+      try {
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+        if (is_even) {
+          throw std::runtime_error("Some thing that happens to go wrong.");
+        }
+
+        svr.listen(HOST, PORT);
+      } catch (...) { svr.decommission(); }
+    }};
+
+    svr.wait_until_ready();
+
+    // Server is up
+    {
+      Client cli(HOST, PORT);
+      auto res = cli.Get("/hi");
+      if (is_even) {
+        EXPECT_FALSE(res);
+      } else {
+        EXPECT_TRUE(res);
+        EXPECT_EQ("hi...", res->body);
+      }
+    }
+
+    svr.stop();
+    t.join();
+
+    // Server is down...
+    {
+      Client cli(HOST, PORT);
+      auto res = cli.Get("/hi");
+      EXPECT_FALSE(res);
+    }
+  }
+}
+
 TEST(StreamingTest, NoContentLengthStreaming) {
  Server svr;

@@ -7515,3 +7572,35 @@ TEST(UniversalClientImplTest, Ipv6LiteralAddress) {
             CLIENT_PRIVATE_KEY_FILE);
  EXPECT_EQ(cli.port(), port);
 }
+
+TEST(FileSystemTest, FileAndDirExistenceCheck) {
+  auto file_path = "./www/dir/index.html";
+  auto dir_path = "./www/dir";
+
+  EXPECT_TRUE(detail::is_file(file_path));
+  EXPECT_FALSE(detail::is_dir(file_path));
+
+  EXPECT_FALSE(detail::is_file(dir_path));
+  EXPECT_TRUE(detail::is_dir(dir_path));
+}
+
+TEST(DirtyDataRequestTest, HeadFieldValueContains_CR_LF_NUL) {
+  Server svr;
+
+  svr.Get("/test", [&](const Request &/*req*/, Response &res) {
+    EXPECT_EQ(res.status, 400);
+  });
+
+  auto thread = std::thread([&]() { svr.listen(HOST, PORT); });
+
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    thread.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+
+  Client cli(HOST, PORT);
+  cli.Get("/test", {{"Test", "_\n\r_\n\r_"}});
+}
Author	SHA1	Message	Date
yhirose	c88b09bc6b	Release v0.17.1	2024-09-03 21:20:57 -04:00
yhirose	87fab847b8	Fix SIGINT problem in Docker image	2024-09-03 21:20:10 -04:00
yhirose	4e6055f084	Fix problem with Abstract Namespace Unix Domain	2024-09-03 20:56:16 -04:00
yhirose	975cf0dae5	Fix #1908	2024-09-03 18:00:12 -04:00
yhirose	4854a694cd	Use IPPROTO_IP	2024-09-03 17:29:28 -04:00
yhirose	b1f8e986bf	Fix #1908 (#1910 ) * Fix #1908 * Code format	2024-09-03 00:47:39 -04:00
yhirose	c5ee208775	Fix build error on Mac and Linux	2024-09-02 23:04:38 -04:00
yhirose	ddfdacfa49	Fix build error	2024-09-02 22:49:31 -04:00
yhirose	2514ebc20f	Fix #1848	2024-09-02 20:38:01 -04:00
yhirose	4f9c6540b2	Fixed warning	2024-09-02 20:33:33 -04:00
mol123	21c9a6a1ff	Windows: simplify conditional compilation and fix call to CreateFileMappingW. (#1909 )	2024-09-02 18:01:05 -04:00
yhirose	7f6d413ddd	Release v0.17.0	2024-09-01 07:53:56 -04:00
yhirose	88277139e7	Added `set_ipv6_v6only` method (#1905 ) * Added `set_ipv6_v6only` method * Adjust the place where socket_options is called	2024-09-01 07:52:24 -04:00
yhirose	6cdd3493a1	Fix #1788	2024-09-01 01:55:27 -04:00
yhirose	9c91b6f4a6	Fix #1645	2024-09-01 00:11:07 -04:00
yhirose	cee838e335	Documentation	2024-08-31 17:42:43 -04:00
yhirose	d82c82db2c	Add sleep in handle_EINTR	2024-08-31 17:19:52 -04:00
yhirose	ba638ff38e	Update Docker support	2024-08-31 17:09:20 -04:00
yhirose	da0c6579fa	Breaking Change! get_header_ methods on Request and Response now take a default value.	2024-08-31 17:07:48 -04:00
yhirose	52a18c78a5	Add docker related files	2024-08-27 00:23:31 -04:00
yhirose	048edec9ed	Changed CPPHTTPLIB_KEEPALIVE_MAX_COUNT to 100	2024-08-26 21:10:38 -04:00