Release v0.18.1

This fixes a -Wc++98-compat-extra-semi instance.

.gitattributes

@@ -0,0 +1,2 @@
+/test/www*/dir/*.html text eol=lf
+/test/www*/dir/*.txt text eol=lf

.github/workflows/cifuzz.yaml

@@ -19,7 +19,7 @@ jobs:
         dry-run: false
         language: c++
     - name: Upload Crash
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       if: failure() && steps.build.outcome == 'success'
       with:
         name: artifacts

.github/workflows/test.yaml

@@ -8,8 +8,8 @@ jobs:
     steps:
       - name: checkout
         uses: actions/checkout@v4
-      - name: install brotli
-        run: sudo apt-get update && sudo apt-get install -y libbrotli-dev
+      - name: install libraries
+        run: sudo apt-get update && sudo apt-get install -y libbrotli-dev libcurl4-openssl-dev
       - name: build and run tests
         run: cd test && make -j4
       - name: run fuzz test target

.gitignore

@@ -9,6 +9,8 @@ example/benchmark
 example/redirect
 example/sse*
 example/upload
+example/one_time_request
+example/server_and_client
 example/*.pem
 test/httplib.cc
 test/httplib.h
@@ -21,9 +23,12 @@ test/test.xcodeproj/*/xcuser*
 test/*.o
 test/*.pem
 test/*.srl
+work/
+benchmark/server*
 
 *.swp
 
+build/
 Debug
 Release
 *.vcxproj.user
@@ -33,5 +38,7 @@ Release
 *.db
 ipch
 *.dSYM
+*.pyc
 .*
+!/.gitattributes
 !/.travis.yml

CMakeLists.txt

@@ -299,6 +299,8 @@ if(HTTPLIB_INSTALL)
 	# ex: /usr/share/doc/httplib/README.md and /usr/share/licenses/httplib/LICENSE
 	install(FILES "README.md" DESTINATION "${CMAKE_INSTALL_DOCDIR}")
 	install(FILES "LICENSE" DESTINATION "${CMAKE_INSTALL_DATADIR}/licenses/${PROJECT_NAME}")
+
+	include(CPack)
 endif()
 
 if(HTTPLIB_TEST)

Dockerfile

@@ -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"]

README.md

@@ -77,6 +77,9 @@ cli.set_ca_cert_path("./ca-bundle.crt");
 
 // Disable cert verification
 cli.enable_server_certificate_verification(false);
+
+// Disable host verification
+cli.enable_server_host_verification(false);
 ```
 
 > [!NOTE]
@@ -384,6 +387,18 @@ svr.Get("/chunked", [&](const Request& req, Response& res) {
 });
 ```
 
+### Send file content
+
+```cpp
+svr.Get("/content", [&](const Request &req, Response &res) {
+  res.set_file_content("./path/to/conent.html");
+});
+
+svr.Get("/content", [&](const Request &req, Response &res) {
+  res.set_file_content("./path/to/conent", "text/html");
+});
+```
+
 ### 'Expect: 100-continue' handler
 
 By default, the server sends a `100 Continue` response for an `Expect: 100-continue` header.
@@ -828,6 +843,23 @@ Use `poll` instead of `select`
 
 `select` system call is used as default since it's more widely supported. If you want to let cpp-httplib use `poll` instead, you can do so with `CPPHTTPLIB_USE_POLL`.
 
+Unix Domain Socket Support
+--------------------------
+
+Unix Domain Socket support is available on Linux and macOS.
+
+```c++
+// Server
+httplib::Server svr("./my-socket.sock");
+svr.set_address_family(AF_UNIX).listen("./my-socket.sock", 80);
+
+// Client
+httplib::Client cli("./my-socket.sock");
+cli.set_address_family(AF_UNIX);
+```
+
+"my-socket.sock" can be a relative path or an absolute path. You application must have the appropriate permissions for the path. You can also use an abstract socket address on Linux. To use an abstract socket address, prepend a null byte ('\x00') to the path.
+
 
 Split httplib.h into .h and .cc
 -------------------------------
@@ -848,6 +880,35 @@ $ ./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 --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 ..."
+```
+
+From Docker Hub
+
+```bash
+> docker run --rm -it -p 8080:80 -v ./docker/html:/html yhirose4dockerhub/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
 ----
 

benchmark/Makefile

@@ -0,0 +1,62 @@
+CXXFLAGS = -std=c++11 -O2 -I..
+
+CPPHTTPLIB_FLAGS = -DCPPHTTPLIB_THREAD_POOL_COUNT=16
+
+BENCH = bombardier -c 10 -d 5s localhost:8080
+MONITOR = ali http://localhost:8080
+
+# cpp-httplib
+bench: server
+	@echo "--------------------\n cpp-httplib latest\n--------------------\n"
+	@./server & export PID=$$!; $(BENCH); kill $${PID}
+	@echo ""
+
+monitor: server
+	@./server & export PID=$$!; $(MONITOR); kill $${PID}
+
+run : server
+	@./server
+
+server : cpp-httplib/main.cpp ../httplib.h
+	g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib/main.cpp
+
+# cpp-httplib
+bench-base: server-base
+	@echo "---------------------\n cpp-httplib v0.18.0\n---------------------\n"
+	@./server-base & export PID=$$!; $(BENCH); kill $${PID}
+	@echo ""
+
+monitor-base: server-base
+	@./server-base & export PID=$$!; $(MONITOR); kill $${PID}
+
+run-base : server-base
+	@./server-base
+
+server-base : cpp-httplib-base/main.cpp cpp-httplib-base/httplib.h
+	g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib-base/main.cpp
+
+# crow
+bench-crow: server-crow
+	@echo "-------------\n Crow v1.2.0\n-------------\n"
+	@./server-crow & export PID=$$!; $(BENCH); kill $${PID}
+	@echo ""
+
+monitor-crow: server-crow
+	@./server-crow & export PID=$$!; $(MONITOR); kill $${PID}
+
+run-crow : server-crow
+	@./server-crow
+
+server-crow : crow/main.cpp
+	g++ -o $@ $(CXXFLAGS) crow/main.cpp
+
+# misc
+build: server server-base server-crow
+
+bench-all: bench-crow bench bench-base
+
+issue:
+	bombardier -c 10 -d 30s localhost:8080
+
+clean:
+	rm -rf server*

benchmark/cpp-httplib-base/main.cpp

@@ -0,0 +1,12 @@
+#include "./httplib.h"
+using namespace httplib;
+
+int main() {
+  Server svr;
+
+  svr.Get("/", [](const Request &, Response &res) {
+    res.set_content("Hello World!", "text/plain");
+  });
+
+  svr.listen("0.0.0.0", 8080);
+}

benchmark/cpp-httplib/main.cpp

@@ -0,0 +1,12 @@
+#include "httplib.h"
+using namespace httplib;
+
+int main() {
+  Server svr;
+
+  svr.Get("/", [](const Request &, Response &res) {
+    res.set_content("Hello World!", "text/plain");
+  });
+
+  svr.listen("0.0.0.0", 8080);
+}

benchmark/crow/main.cpp

@@ -0,0 +1,17 @@
+#include "crow_all.h"
+
+class CustomLogger : public crow::ILogHandler {
+public:
+  void log(std::string, crow::LogLevel) {}
+};
+
+int main() {
+  CustomLogger logger;
+  crow::logger::setHandler(&logger);
+
+  crow::SimpleApp app;
+
+  CROW_ROUTE(app, "/")([]() { return "Hello world!"; });
+
+  app.port(8080).multithreaded().run();
+}

benchmark/download.sh

@@ -0,0 +1,2 @@
+rm -f httplib.h
+wget https://raw.githubusercontent.com/yhirose/cpp-httplib/v$1/httplib.h

docker-compose.yml

@@ -0,0 +1,7 @@
+services:
+  http:
+    build: .
+    ports:
+      - "8080:80"
+    volumes:
+      - ./docker/html:/html

docker/html/index.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>

docker/main.cc

@@ -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;
+}

example/Makefile

@@ -1,8 +1,7 @@
 #CXX = clang++
 CXXFLAGS = -O2 -std=c++11 -I.. -Wall -Wextra -pthread
 
-PREFIX = /usr/local
-#PREFIX = $(shell brew --prefix)
+PREFIX ?= $(shell brew --prefix)
 
 OPENSSL_DIR = $(PREFIX)/opt/openssl@3
 OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
@@ -51,9 +50,15 @@ ssecli : ssecli.cc ../httplib.h Makefile
 benchmark : benchmark.cc ../httplib.h Makefile
 	$(CXX) -o benchmark $(CXXFLAGS) benchmark.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT)
 
+one_time_request : one_time_request.cc ../httplib.h Makefile
+	$(CXX) -o one_time_request $(CXXFLAGS) one_time_request.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT)
+
+server_and_client : server_and_client.cc ../httplib.h Makefile
+	$(CXX) -o server_and_client $(CXXFLAGS) server_and_client.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT)
+
 pem:
 	openssl genrsa 2048 > key.pem
 	openssl req -new -key key.pem | openssl x509 -days 3650 -req -signkey key.pem > cert.pem
 
 clean:
-	rm server client hello simplecli simplesvr upload redirect ssesvr ssecli benchmark *.pem
+	rm server client hello simplecli simplesvr upload redirect ssesvr ssecli benchmark one_time_request server_and_client *.pem

example/one_time_request.cc

@@ -0,0 +1,56 @@
+#include <httplib.h>
+#include <iostream>
+
+using namespace httplib;
+
+const char *HOST = "localhost";
+const int PORT = 1234;
+
+void one_time_request_server(const char *label) {
+  std::thread th;
+  Server svr;
+
+  svr.Get("/hi", [&](const Request & /*req*/, Response &res) {
+    res.set_content(std::string("Hello from ") + label, "text/plain");
+
+    // Stop server
+    th = std::thread([&]() { svr.stop(); });
+  });
+
+  svr.listen(HOST, PORT);
+  th.join();
+
+  std::cout << label << " ended..." << std::endl;
+}
+
+void send_request(const char *label) {
+  Client cli(HOST, PORT);
+
+  std::cout << "Send " << label << " request" << std::endl;
+  auto res = cli.Get("/hi");
+
+  if (res) {
+    std::cout << res->body << std::endl;
+  } else {
+    std::cout << "Request error: " + to_string(res.error()) << std::endl;
+  }
+}
+
+int main(void) {
+  auto th1 = std::thread([&]() { one_time_request_server("Server #1"); });
+  auto th2 = std::thread([&]() { one_time_request_server("Server #2"); });
+
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  send_request("1st");
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  send_request("2nd");
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  send_request("3rd");
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  th1.join();
+  th2.join();
+}

example/server_and_client.cc

@@ -0,0 +1,90 @@
+//
+//  server_and_client.cc
+//
+//  Copyright (c) 2024 Yuji Hirose. All rights reserved.
+//  MIT License
+//
+
+#include <httplib.h>
+#include <iostream>
+#include <string>
+
+using namespace httplib;
+
+std::string dump_headers(const Headers &headers) {
+  std::string s;
+  char buf[BUFSIZ];
+
+  for (auto it = headers.begin(); it != headers.end(); ++it) {
+    const auto &x = *it;
+    snprintf(buf, sizeof(buf), "%s: %s\n", x.first.c_str(), x.second.c_str());
+    s += buf;
+  }
+
+  return s;
+}
+
+void logger(const Request &req, const Response &res) {
+  std::string s;
+  char buf[BUFSIZ];
+
+  s += "================================\n";
+
+  snprintf(buf, sizeof(buf), "%s %s %s", req.method.c_str(),
+           req.version.c_str(), req.path.c_str());
+  s += buf;
+
+  std::string query;
+  for (auto it = req.params.begin(); it != req.params.end(); ++it) {
+    const auto &x = *it;
+    snprintf(buf, sizeof(buf), "%c%s=%s",
+             (it == req.params.begin()) ? '?' : '&', x.first.c_str(),
+             x.second.c_str());
+    query += buf;
+  }
+  snprintf(buf, sizeof(buf), "%s\n", query.c_str());
+  s += buf;
+
+  s += dump_headers(req.headers);
+
+  s += "--------------------------------\n";
+
+  snprintf(buf, sizeof(buf), "%d %s\n", res.status, res.version.c_str());
+  s += buf;
+  s += dump_headers(res.headers);
+  s += "\n";
+
+  if (!res.body.empty()) { s += res.body; }
+
+  s += "\n";
+
+  std::cout << s;
+}
+
+int main(void) {
+  // Server
+  Server svr;
+  svr.set_logger(logger);
+
+  svr.Post("/post", [&](const Request & /*req*/, Response &res) {
+    res.set_content("POST", "text/plain");
+  });
+
+  auto th = std::thread([&]() { svr.listen("localhost", 8080); });
+
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    th.join();
+  });
+
+  svr.wait_until_ready();
+
+  // Client
+  Client cli{"localhost", 8080};
+
+  std::string body = R"({"hello": "world"})";
+
+  auto res = cli.Post("/post", body, "application/json");
+  std::cout << "--------------------------------" << std::endl;
+  std::cout << to_string(res.error()) << std::endl;
+}

meson.build

@@ -13,7 +13,7 @@ project(
     'b_lto=true',
     'warning_level=3'
   ],
-  meson_version: '>=0.47.0'
+  meson_version: '>=0.62.0'
 )
 
 # Check just in case downstream decides to edit the source
@@ -98,20 +98,18 @@ if get_option('cpp-httplib_compile')
   )
 else
   install_headers('httplib.h')
-  cpp_httplib_dep = declare_dependency(compile_args: args, dependencies: deps, include_directories: include_directories('.'))
+  cpp_httplib_dep = declare_dependency(compile_args: args, dependencies: deps, include_directories: '.')
 
   import('pkgconfig').generate(
     name: 'cpp-httplib',
     description: 'A C++ HTTP/HTTPS server and client library',
-    install_dir: join_paths(get_option('datadir'), 'pkgconfig'),
+    install_dir: get_option('datadir')/'pkgconfig',
     url: 'https://github.com/yhirose/cpp-httplib',
     version: version
   )
 endif
 
-if meson.version().version_compare('>=0.54.0')
-  meson.override_dependency('cpp-httplib', cpp_httplib_dep)
-endif
+meson.override_dependency('cpp-httplib', cpp_httplib_dep)
 
 if get_option('cpp-httplib_test')
   subdir('test')

test/CMakeLists.txt

@@ -24,9 +24,11 @@ else()
     FetchContent_MakeAvailable(gtest)
 endif()
 
+find_package(CURL REQUIRED)
+
 add_executable(httplib-test test.cc)
 target_compile_options(httplib-test PRIVATE "$<$<CXX_COMPILER_ID:MSVC>:/utf-8;/bigobj>")
-target_link_libraries(httplib-test PRIVATE httplib GTest::gtest_main)
+target_link_libraries(httplib-test PRIVATE httplib GTest::gtest_main CURL::libcurl)
 gtest_discover_tests(httplib-test)
 
 file(
@@ -35,6 +37,11 @@ file(
 )
 
 if(HTTPLIB_IS_USING_OPENSSL)
+    if (OPENSSL_VERSION VERSION_LESS "3.2.0")
+      set(OPENSSL_X509_FLAG "-x509")
+    else()
+      set(OPENSSL_X509_FLAG "-x509v1")
+    endif()
     find_program(OPENSSL_COMMAND
         NAMES openssl
         PATHS ${OPENSSL_INCLUDE_DIR}/../bin
@@ -54,7 +61,7 @@ if(HTTPLIB_IS_USING_OPENSSL)
         COMMAND_ERROR_IS_FATAL ANY
     )
     execute_process(
-        COMMAND ${OPENSSL_COMMAND} req -x509 -new -config ${CMAKE_CURRENT_LIST_DIR}/test.conf -key key.pem -sha256 -days 3650 -nodes -out cert2.pem -extensions SAN
+        COMMAND ${OPENSSL_COMMAND} req ${OPENSSL_X509_FLAG} -new -config ${CMAKE_CURRENT_LIST_DIR}/test.conf -key key.pem -sha256 -days 3650 -nodes -out cert2.pem -extensions SAN
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
         COMMAND_ERROR_IS_FATAL ANY
     )
@@ -65,7 +72,7 @@ if(HTTPLIB_IS_USING_OPENSSL)
         COMMAND_ERROR_IS_FATAL ANY
     )
     execute_process(
-        COMMAND ${OPENSSL_COMMAND} req -x509 -new -batch -config ${CMAKE_CURRENT_LIST_DIR}/test.rootCA.conf -key rootCA.key.pem -days 1024
+        COMMAND ${OPENSSL_COMMAND} req ${OPENSSL_X509_FLAG} -new -batch -config ${CMAKE_CURRENT_LIST_DIR}/test.rootCA.conf -key rootCA.key.pem -days 1024
         OUTPUT_FILE rootCA.cert.pem
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
         COMMAND_ERROR_IS_FATAL ANY

test/Makefile

@@ -18,7 +18,7 @@ ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz
 BROTLI_DIR = $(PREFIX)/opt/brotli
 BROTLI_SUPPORT = -DCPPHTTPLIB_BROTLI_SUPPORT -I$(BROTLI_DIR)/include -L$(BROTLI_DIR)/lib -lbrotlicommon -lbrotlienc -lbrotlidec
 
-TEST_ARGS = gtest/gtest-all.cc gtest/gtest_main.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT) -pthread
+TEST_ARGS = gtest/gtest-all.cc gtest/gtest_main.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT) -pthread -lcurl
 
 # By default, use standalone_fuzz_target_runner.
 # This runner does no fuzzing, but simply executes the inputs
@@ -63,18 +63,8 @@ httplib.cc : ../httplib.h
 	python3 ../split.py -o .
 
 cert.pem:
-	openssl genrsa 2048 > key.pem
-	openssl req -new -batch -config test.conf -key key.pem | openssl x509 -days 3650 -req -signkey key.pem > cert.pem
-	openssl req -x509 -config test.conf -key key.pem -sha256 -days 3650 -nodes -out cert2.pem -extensions SAN
-	openssl genrsa 2048 > rootCA.key.pem
-	openssl req -x509 -new -batch -config test.rootCA.conf -key rootCA.key.pem -days 1024 > rootCA.cert.pem
-	openssl genrsa 2048 > client.key.pem
-	openssl req -new -batch -config test.conf -key client.key.pem | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client.cert.pem
-	openssl genrsa -passout pass:test123! 2048 > key_encrypted.pem
-	openssl req -new -batch -config test.conf -key key_encrypted.pem | openssl x509 -days 3650 -req -signkey key_encrypted.pem > cert_encrypted.pem
-	openssl genrsa -aes256 -passout pass:test012! 2048 > client_encrypted.key.pem
-	openssl req -new -batch -config test.conf -key client_encrypted.key.pem -passin pass:test012! | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client_encrypted.cert.pem
-	#c_rehash .
+	./gen-certs.sh
 
 clean:
 	rm -f test test_split test_proxy server_fuzzer *.pem *.0 *.o *.1 *.srl httplib.h httplib.cc
+

test/fuzzing/server_fuzzer.cc

@@ -50,8 +50,12 @@ class FuzzableServer : public httplib::Server {
 public:
   void ProcessFuzzedRequest(FuzzedStream &stream) {
     bool connection_close = false;
-    process_request(stream, /*last_connection=*/false, connection_close,
-                    nullptr);
+    process_request(stream,
+                    /*remote_addr=*/"",
+                    /*remote_port =*/0,
+                    /*local_addr=*/"",
+                    /*local_port =*/0,
+                    /*last_connection=*/false, connection_close, nullptr);
   }
 };
 

test/gen-certs.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+if [[ $(openssl version) =~ 3\.[2-9]\.[0-9]+ ]]; then
+	OPENSSL_X509_FLAG='-x509v1'
+else
+	OPENSSL_X509_FLAG='-x509'
+fi
+
+openssl genrsa 2048 > key.pem
+openssl req -new -batch -config test.conf -key key.pem | openssl x509 -days 3650 -req -signkey key.pem > cert.pem
+openssl req -x509 -config test.conf -key key.pem -sha256 -days 3650 -nodes -out cert2.pem -extensions SAN
+openssl genrsa 2048 > rootCA.key.pem
+openssl req $OPENSSL_X509_FLAG -new -batch -config test.rootCA.conf -key rootCA.key.pem -days 1024 > rootCA.cert.pem
+openssl genrsa 2048 > client.key.pem
+openssl req -new -batch -config test.conf -key client.key.pem | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client.cert.pem
+openssl genrsa -passout pass:test123! 2048 > key_encrypted.pem
+openssl req -new -batch -config test.conf -key key_encrypted.pem | openssl x509 -days 3650 -req -signkey key_encrypted.pem > cert_encrypted.pem
+openssl genrsa -aes256 -passout pass:test012! 2048 > client_encrypted.key.pem
+openssl req -new -batch -config test.conf -key client_encrypted.key.pem -passin pass:test012! | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client_encrypted.cert.pem

test/meson.build

@@ -3,8 +3,10 @@
 # SPDX-License-Identifier: MIT
 
 gtest_dep = dependency('gtest', main: true)
+libcurl_dep = dependency('libcurl')
 openssl = find_program('openssl')
 test_conf = files('test.conf')
+req_x509_flag = openssl.version().version_compare('>=3.2.0') ? '-x509v1' : '-x509'
 
 key_pem = custom_target(
   'key_pem',
@@ -30,7 +32,7 @@ cert2_pem = custom_target(
   'cert2_pem',
   input: key_pem,
   output: 'cert2.pem',
-  command: [openssl, 'req', '-x509', '-config', test_conf, '-key', '@INPUT@', '-sha256', '-days', '3650', '-nodes', '-out', '@OUTPUT@', '-extensions', 'SAN']
+  command: [openssl, 'req', req_x509_flag, '-config', test_conf, '-key', '@INPUT@', '-sha256', '-days', '3650', '-nodes', '-out', '@OUTPUT@', '-extensions', 'SAN']
 )
 
 key_encrypted_pem = custom_target(
@@ -43,7 +45,7 @@ cert_encrypted_pem = custom_target(
   'cert_encrypted_pem',
   input: key_encrypted_pem,
   output: 'cert_encrypted.pem',
-  command: [openssl, 'req', '-x509', '-config', test_conf, '-key', '@INPUT@', '-sha256', '-days', '3650', '-nodes', '-out', '@OUTPUT@', '-extensions', 'SAN']
+  command: [openssl, 'req', req_x509_flag, '-config', test_conf, '-key', '@INPUT@', '-sha256', '-days', '3650', '-nodes', '-out', '@OUTPUT@', '-extensions', 'SAN']
 )
 
 rootca_key_pem = custom_target(
@@ -56,7 +58,7 @@ rootca_cert_pem = custom_target(
   'rootca_cert_pem',
   input: rootca_key_pem,
   output: 'rootCA.cert.pem',
-  command: [openssl, 'req', '-x509', '-new', '-batch', '-config', files('test.rootCA.conf'), '-key', '@INPUT@', '-days', '1024', '-out', '@OUTPUT@']
+  command: [openssl, 'req', req_x509_flag, '-new', '-batch', '-config', files('test.rootCA.conf'), '-key', '@INPUT@', '-days', '1024', '-out', '@OUTPUT@']
 )
 
 client_key_pem = custom_target(
@@ -102,9 +104,9 @@ client_encrypted_cert_pem = custom_target(
 # Copy test files to the build directory
 configure_file(input: 'ca-bundle.crt', output: 'ca-bundle.crt', copy: true)
 configure_file(input: 'image.jpg',     output: 'image.jpg',     copy: true)
-subdir(join_paths('www', 'dir'))
-subdir(join_paths('www2', 'dir'))
-subdir(join_paths('www3', 'dir'))
+subdir('www')
+subdir('www2'/'dir')
+subdir('www3'/'dir')
 
 # GoogleTest 1.13.0 requires C++14
 test_options = []
@@ -119,7 +121,8 @@ test(
     'test.cc',
     dependencies: [
       cpp_httplib_dep,
-      gtest_dep
+      gtest_dep,
+      libcurl_dep
     ],
     override_options: test_options
   ),

test/test.cc

@@ -1,16 +1,21 @@
 #include <httplib.h>
 #include <signal.h>
 
+#ifndef _WIN32
+#include <curl/curl.h>
+#endif
 #include <gtest/gtest.h>
 
 #include <atomic>
 #include <chrono>
 #include <future>
+#include <limits>
 #include <memory>
 #include <sstream>
 #include <stdexcept>
 #include <thread>
 #include <type_traits>
+#include <vector>
 
 #define SERVER_CERT_FILE "./cert.pem"
 #define SERVER_CERT2_FILE "./cert2.pem"
@@ -53,11 +58,176 @@ MultipartFormData &get_file_value(MultipartFormDataItems &files,
 #endif
 }
 
-TEST(ConstructorTest, MoveConstructible) {
+#ifndef _WIN32
+class UnixSocketTest : public ::testing::Test {
+protected:
+  void TearDown() override { std::remove(pathname_.c_str()); }
+
+  void client_GET(const std::string &addr) {
+    httplib::Client cli{addr};
+    cli.set_address_family(AF_UNIX);
+    ASSERT_TRUE(cli.is_valid());
+
+    const auto &result = cli.Get(pattern_);
+    ASSERT_TRUE(result) << "error: " << result.error();
+
+    const auto &resp = result.value();
+    EXPECT_EQ(resp.status, StatusCode::OK_200);
+    EXPECT_EQ(resp.body, content_);
+  }
+
+  const std::string pathname_{"./httplib-server.sock"};
+  const std::string pattern_{"/hi"};
+  const std::string content_{"Hello World!"};
+};
+
+TEST_F(UnixSocketTest, pathname) {
+  httplib::Server svr;
+  svr.Get(pattern_, [&](const httplib::Request &, httplib::Response &res) {
+    res.set_content(content_, "text/plain");
+  });
+
+  std::thread t{[&] {
+    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(pathname_, 80));
+  }};
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    t.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+  ASSERT_TRUE(svr.is_running());
+
+  client_GET(pathname_);
+}
+
+#if defined(__linux__) ||                                                      \
+    /* __APPLE__ */ (defined(SOL_LOCAL) && defined(SO_PEERPID))
+TEST_F(UnixSocketTest, PeerPid) {
+  httplib::Server svr;
+  std::string remote_port_val;
+  svr.Get(pattern_, [&](const httplib::Request &req, httplib::Response &res) {
+    res.set_content(content_, "text/plain");
+    remote_port_val = req.get_header_value("REMOTE_PORT");
+  });
+
+  std::thread t{[&] {
+    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(pathname_, 80));
+  }};
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    t.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+  ASSERT_TRUE(svr.is_running());
+
+  client_GET(pathname_);
+  EXPECT_EQ(std::to_string(getpid()), remote_port_val);
+}
+#endif
+
+#ifdef __linux__
+TEST_F(UnixSocketTest, abstract) {
+  constexpr char svr_path[]{"\x00httplib-server.sock"};
+  const std::string abstract_addr{svr_path, sizeof(svr_path) - 1};
+
+  httplib::Server svr;
+  svr.Get(pattern_, [&](const httplib::Request &, httplib::Response &res) {
+    res.set_content(content_, "text/plain");
+  });
+
+  std::thread t{[&] {
+    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(abstract_addr, 80));
+  }};
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    t.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+  ASSERT_TRUE(svr.is_running());
+
+  client_GET(abstract_addr);
+}
+#endif
+
+TEST(SocketStream, is_writable_UNIX) {
+  int fds[2];
+  ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, fds));
+
+  const auto asSocketStream = [&](socket_t fd,
+                                  std::function<bool(Stream &)> func) {
+    return detail::process_client_socket(fd, 0, 0, 0, 0, func);
+  };
+  asSocketStream(fds[0], [&](Stream &s0) {
+    EXPECT_EQ(s0.socket(), fds[0]);
+    EXPECT_TRUE(s0.is_writable());
+
+    EXPECT_EQ(0, close(fds[1]));
+    EXPECT_FALSE(s0.is_writable());
+
+    return true;
+  });
+  EXPECT_EQ(0, close(fds[0]));
+}
+
+TEST(SocketStream, is_writable_INET) {
+  sockaddr_in addr;
+  memset(&addr, 0, sizeof(addr));
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(PORT + 1);
+  addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+  int disconnected_svr_sock = -1;
+  std::thread svr{[&] {
+    const int s = socket(AF_INET, SOCK_STREAM, 0);
+    ASSERT_LE(0, s);
+    ASSERT_EQ(0, ::bind(s, reinterpret_cast<sockaddr *>(&addr), sizeof(addr)));
+    ASSERT_EQ(0, listen(s, 1));
+    ASSERT_LE(0, disconnected_svr_sock = accept(s, nullptr, nullptr));
+    ASSERT_EQ(0, close(s));
+  }};
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  std::thread cli{[&] {
+    const int s = socket(AF_INET, SOCK_STREAM, 0);
+    ASSERT_LE(0, s);
+    ASSERT_EQ(0, connect(s, reinterpret_cast<sockaddr *>(&addr), sizeof(addr)));
+    ASSERT_EQ(0, close(s));
+  }};
+  cli.join();
+  svr.join();
+  ASSERT_NE(disconnected_svr_sock, -1);
+
+  const auto asSocketStream = [&](socket_t fd,
+                                  std::function<bool(Stream &)> func) {
+    return detail::process_client_socket(fd, 0, 0, 0, 0, func);
+  };
+  asSocketStream(disconnected_svr_sock, [&](Stream &ss) {
+    EXPECT_EQ(ss.socket(), disconnected_svr_sock);
+    EXPECT_FALSE(ss.is_writable());
+
+    return true;
+  });
+
+  ASSERT_EQ(0, close(disconnected_svr_sock));
+}
+#endif // #ifndef _WIN32
+
+TEST(ClientTest, MoveConstructible) {
   EXPECT_FALSE(std::is_copy_constructible<Client>::value);
   EXPECT_TRUE(std::is_nothrow_move_constructible<Client>::value);
 }
 
+TEST(ClientTest, MoveAssignable) {
+  EXPECT_FALSE(std::is_copy_assignable<Client>::value);
+  EXPECT_TRUE(std::is_nothrow_move_assignable<Client>::value);
+}
+
 #ifdef _WIN32
 TEST(StartupTest, WSAStartup) {
   WSADATA wsaData;
@@ -301,25 +471,25 @@ 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);
 }
 
@@ -1748,32 +1918,34 @@ TEST(BindServerTest, BindAndListenSeparatelySSLEncryptedKey) {
 #endif
 
 #ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-X509* readCertificate (const std::string& strFileName) {
-    std::ifstream inStream (strFileName);
-    std::string strCertPEM ((std::istreambuf_iterator<char>(inStream)), std::istreambuf_iterator<char>());
+X509 *readCertificate(const std::string &strFileName) {
+  std::ifstream inStream(strFileName);
+  std::string strCertPEM((std::istreambuf_iterator<char>(inStream)),
+                         std::istreambuf_iterator<char>());
 
-    if (strCertPEM.empty ()) return (nullptr);
+  if (strCertPEM.empty()) return (nullptr);
 
-    BIO* pbCert = BIO_new (BIO_s_mem ());
-    BIO_write (pbCert, strCertPEM.c_str (), (int)strCertPEM.size ());
-    X509* pCert = PEM_read_bio_X509 (pbCert, NULL, 0, NULL);
-    BIO_free (pbCert);
+  BIO *pbCert = BIO_new(BIO_s_mem());
+  BIO_write(pbCert, strCertPEM.c_str(), (int)strCertPEM.size());
+  X509 *pCert = PEM_read_bio_X509(pbCert, NULL, 0, NULL);
+  BIO_free(pbCert);
 
-    return (pCert);
+  return (pCert);
 }
 
-EVP_PKEY* readPrivateKey (const std::string& strFileName) {
-    std::ifstream inStream (strFileName);
-    std::string strPrivateKeyPEM ((std::istreambuf_iterator<char>(inStream)), std::istreambuf_iterator<char>());
+EVP_PKEY *readPrivateKey(const std::string &strFileName) {
+  std::ifstream inStream(strFileName);
+  std::string strPrivateKeyPEM((std::istreambuf_iterator<char>(inStream)),
+                               std::istreambuf_iterator<char>());
 
-    if (strPrivateKeyPEM.empty ()) return (nullptr);
+  if (strPrivateKeyPEM.empty()) return (nullptr);
 
-    BIO* pbPrivKey = BIO_new (BIO_s_mem ());
-    BIO_write (pbPrivKey, strPrivateKeyPEM.c_str (), (int) strPrivateKeyPEM.size ());
-    EVP_PKEY* pPrivateKey = PEM_read_bio_PrivateKey (pbPrivKey, NULL, NULL, NULL);
-    BIO_free (pbPrivKey);
+  BIO *pbPrivKey = BIO_new(BIO_s_mem());
+  BIO_write(pbPrivKey, strPrivateKeyPEM.c_str(), (int)strPrivateKeyPEM.size());
+  EVP_PKEY *pPrivateKey = PEM_read_bio_PrivateKey(pbPrivKey, NULL, NULL, NULL);
+  BIO_free(pbPrivKey);
 
-    return (pPrivateKey);
+  return (pPrivateKey);
 }
 
 TEST(BindServerTest, UpdateCerts) {
@@ -1782,26 +1954,26 @@ TEST(BindServerTest, UpdateCerts) {
   ASSERT_TRUE(svr.is_valid());
   ASSERT_TRUE(port > 0);
 
-  X509* cert    = readCertificate (SERVER_CERT_FILE);
-  X509* ca_cert = readCertificate (CLIENT_CA_CERT_FILE);
-  EVP_PKEY* key = readPrivateKey  (SERVER_PRIVATE_KEY_FILE);
+  X509 *cert = readCertificate(SERVER_CERT_FILE);
+  X509 *ca_cert = readCertificate(CLIENT_CA_CERT_FILE);
+  EVP_PKEY *key = readPrivateKey(SERVER_PRIVATE_KEY_FILE);
 
-  ASSERT_TRUE(cert    != nullptr);
+  ASSERT_TRUE(cert != nullptr);
   ASSERT_TRUE(ca_cert != nullptr);
-  ASSERT_TRUE(key     != nullptr);
+  ASSERT_TRUE(key != nullptr);
 
-  X509_STORE* cert_store = X509_STORE_new ();
+  X509_STORE *cert_store = X509_STORE_new();
 
-  X509_STORE_add_cert (cert_store, ca_cert);
+  X509_STORE_add_cert(cert_store, ca_cert);
 
-  svr.update_certs (cert, key, cert_store);
+  svr.update_certs(cert, key, cert_store);
 
   ASSERT_TRUE(svr.is_valid());
   svr.stop();
 
-  X509_free (cert);
-  X509_free (ca_cert);
-  EVP_PKEY_free (key);
+  X509_free(cert);
+  X509_free(ca_cert);
+  EVP_PKEY_free(key);
 }
 #endif
 
@@ -2128,6 +2300,18 @@ protected:
              [&](const Request & /*req*/, Response &res) {
                res.set_content("Hello World!", "text/plain");
              })
+        .Get("/file_content",
+             [&](const Request & /*req*/, Response &res) {
+               res.set_file_content("./www/dir/test.html");
+             })
+        .Get("/file_content_with_content_type",
+             [&](const Request & /*req*/, Response &res) {
+               res.set_file_content("./www/file", "text/plain");
+             })
+        .Get("/invalid_file_content",
+             [&](const Request & /*req*/, Response &res) {
+               res.set_file_content("./www/dir/invalid_file_path");
+             })
         .Get("/http_response_splitting",
              [&](const Request & /*req*/, Response &res) {
                res.set_header("a", "1\r\nSet-Cookie: a=1");
@@ -2350,8 +2534,8 @@ protected:
              })
         .Get("/with-range-customized-response",
              [&](const Request & /*req*/, Response &res) {
-              res.status = StatusCode::BadRequest_400;
-              res.set_content(JSON_DATA,  "application/json");
+               res.status = StatusCode::BadRequest_400;
+               res.set_content(JSON_DATA, "application/json");
              })
         .Post("/chunked",
               [&](const Request &req, Response & /*res*/) {
@@ -2732,6 +2916,39 @@ TEST_F(ServerTest, GetMethod200) {
   EXPECT_EQ("Hello World!", res->body);
 }
 
+TEST_F(ServerTest, GetEmptyFile) {
+  auto res = cli_.Get("/empty_file");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+  EXPECT_EQ("application/octet-stream", res->get_header_value("Content-Type"));
+  EXPECT_EQ(0, std::stoi(res->get_header_value("Content-Length")));
+  EXPECT_EQ("", res->body);
+}
+
+TEST_F(ServerTest, GetFileContent) {
+  auto res = cli_.Get("/file_content");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+  EXPECT_EQ("text/html", res->get_header_value("Content-Type"));
+  EXPECT_EQ(9, std::stoi(res->get_header_value("Content-Length")));
+  EXPECT_EQ("test.html", res->body);
+}
+
+TEST_F(ServerTest, GetFileContentWithContentType) {
+  auto res = cli_.Get("/file_content_with_content_type");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+  EXPECT_EQ("text/plain", res->get_header_value("Content-Type"));
+  EXPECT_EQ(5, std::stoi(res->get_header_value("Content-Length")));
+  EXPECT_EQ("file\n", res->body);
+}
+
+TEST_F(ServerTest, GetInvalidFileContent) {
+  auto res = cli_.Get("/invalid_file_content");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::NotFound_404, res->status);
+}
+
 TEST_F(ServerTest, GetMethod200withPercentEncoding) {
   auto res = cli_.Get("/%68%69"); // auto res = cli_.Get("/hi");
   ASSERT_TRUE(res);
@@ -3473,14 +3690,26 @@ TEST_F(ServerTest, GetStreamedWithRangeError) {
 }
 
 TEST_F(ServerTest, GetRangeWithMaxLongLength) {
-  auto res =
-      cli_.Get("/with-range", {{"Range", "bytes=0-9223372036854775807"}});
+  auto res = cli_.Get(
+      "/with-range",
+      {{"Range",
+        "bytes=0-" + std::to_string(std::numeric_limits<long>::max())}});
   EXPECT_EQ(StatusCode::RangeNotSatisfiable_416, res->status);
   EXPECT_EQ("0", res->get_header_value("Content-Length"));
   EXPECT_EQ(false, res->has_header("Content-Range"));
   EXPECT_EQ(0U, res->body.size());
 }
 
+TEST_F(ServerTest, GetRangeWithZeroToInfinite) {
+  auto res = cli_.Get("/with-range", {{"Range", "bytes=0-"}});
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::PartialContent_206, res->status);
+  EXPECT_EQ("7", res->get_header_value("Content-Length"));
+  EXPECT_EQ(true, res->has_header("Content-Range"));
+  EXPECT_EQ("bytes 0-6/7", res->get_header_value("Content-Range"));
+  EXPECT_EQ(std::string("abcdefg"), res->body);
+}
+
 TEST_F(ServerTest, GetStreamedWithRangeMultipart) {
   auto res =
       cli_.Get("/streamed-with-range", {{make_range_header({{1, 2}, {4, 5}})}});
@@ -3630,7 +3859,8 @@ TEST_F(ServerTest, GetWithRangeMultipartOffsetGreaterThanContent) {
 }
 
 TEST_F(ServerTest, GetWithRangeCustomizedResponse) {
-  auto res = cli_.Get("/with-range-customized-response", {{make_range_header({{1, 2}})}});
+  auto res = cli_.Get("/with-range-customized-response",
+                      {{make_range_header({{1, 2}})}});
   ASSERT_TRUE(res);
   EXPECT_EQ(StatusCode::BadRequest_400, res->status);
   EXPECT_EQ(true, res->has_header("Content-Length"));
@@ -3639,7 +3869,8 @@ TEST_F(ServerTest, GetWithRangeCustomizedResponse) {
 }
 
 TEST_F(ServerTest, GetWithRangeMultipartCustomizedResponseMultipleRange) {
-  auto res = cli_.Get("/with-range-customized-response", {{make_range_header({{1, 2}, {4, 5}})}});
+  auto res = cli_.Get("/with-range-customized-response",
+                      {{make_range_header({{1, 2}, {4, 5}})}});
   ASSERT_TRUE(res);
   EXPECT_EQ(StatusCode::BadRequest_400, res->status);
   EXPECT_EQ(true, res->has_header("Content-Length"));
@@ -4480,7 +4711,7 @@ 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);
@@ -4546,6 +4777,10 @@ 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
@@ -4679,6 +4914,23 @@ 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(ServerRequestParsingTest, EmptyFieldValue) {
+  std::string out;
+
+  test_raw_request("GET /header_field_value_check HTTP/1.1\r\n"
+                   "Test: \r\n\r\n",
+                   &out);
+  EXPECT_EQ("HTTP/1.1 200 OK", out.substr(0, 15));
+}
+
 TEST(ServerStopTest, StopServerWithChunkedTransmission) {
   Server svr;
 
@@ -4754,6 +5006,52 @@ 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;
 
@@ -4835,6 +5133,43 @@ TEST(MountTest, Unmount) {
   EXPECT_EQ(StatusCode::NotFound_404, res->status);
 }
 
+TEST(MountTest, Redicect) {
+  Server svr;
+
+  auto listen_thread = std::thread([&svr]() { svr.listen("localhost", PORT); });
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    listen_thread.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.set_mount_point("/", "./www");
+  svr.wait_until_ready();
+
+  Client cli("localhost", PORT);
+
+  auto res = cli.Get("/dir/");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+
+  res = cli.Get("/dir");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::MovedPermanently_301, res->status);
+
+  res = cli.Get("/file");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+
+  res = cli.Get("/file/");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::NotFound_404, res->status);
+
+  cli.set_follow_location(true);
+  res = cli.Get("/dir");
+  ASSERT_TRUE(res);
+  EXPECT_EQ(StatusCode::OK_200, res->status);
+}
+
 #ifndef CPPHTTPLIB_NO_EXCEPTIONS
 TEST(ExceptionTest, ThrowExceptionInHandler) {
   Server svr;
@@ -4942,6 +5277,41 @@ TEST(KeepAliveTest, Issue1041) {
   EXPECT_EQ(StatusCode::OK_200, result->status);
 }
 
+TEST(KeepAliveTest, Issue1959) {
+  Server svr;
+  svr.set_keep_alive_timeout(5);
+
+  svr.Get("/a", [&](const Request & /*req*/, Response &res) {
+    res.set_content("a", "text/plain");
+  });
+
+  auto listen_thread = std::thread([&svr]() { svr.listen("localhost", PORT); });
+  auto se = detail::scope_exit([&] {
+    if (!svr.is_running()) return;
+    svr.stop();
+    listen_thread.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+
+  Client cli("localhost", PORT);
+  cli.set_keep_alive(true);
+
+  using namespace std::chrono;
+  auto start = steady_clock::now();
+
+  cli.Get("/a");
+
+  svr.stop();
+  listen_thread.join();
+
+  auto end = steady_clock::now();
+  auto elapsed = duration_cast<milliseconds>(end - start).count();
+
+  EXPECT_LT(elapsed, 5000);
+}
+
 #ifdef CPPHTTPLIB_OPENSSL_SUPPORT
 TEST(KeepAliveTest, SSLClientReconnection) {
   SSLServer svr(SERVER_CERT_FILE, SERVER_PRIVATE_KEY_FILE);
@@ -4984,6 +5354,63 @@ TEST(KeepAliveTest, SSLClientReconnection) {
   ASSERT_TRUE(result);
   EXPECT_EQ(StatusCode::OK_200, result->status);
 }
+
+TEST(KeepAliveTest, SSLClientReconnectionPost) {
+  SSLServer svr(SERVER_CERT_FILE, SERVER_PRIVATE_KEY_FILE);
+  ASSERT_TRUE(svr.is_valid());
+  svr.set_keep_alive_timeout(1);
+  std::string content = "reconnect";
+
+  svr.Post("/hi", [](const httplib::Request &, httplib::Response &res) {
+    res.set_content("Hello World!", "text/plain");
+  });
+
+  auto listen_thread = std::thread([&svr] { svr.listen(HOST, PORT); });
+  auto se = detail::scope_exit([&] {
+    svr.stop();
+    listen_thread.join();
+    ASSERT_FALSE(svr.is_running());
+  });
+
+  svr.wait_until_ready();
+
+  SSLClient cli(HOST, PORT);
+  cli.enable_server_certificate_verification(false);
+  cli.set_keep_alive(true);
+
+  auto result = cli.Post(
+      "/hi", content.size(),
+      [&content](size_t /*offset*/, size_t /*length*/, DataSink &sink) {
+        sink.write(content.c_str(), content.size());
+        return true;
+      },
+      "text/plain");
+  ASSERT_TRUE(result);
+  EXPECT_EQ(200, result->status);
+
+  std::this_thread::sleep_for(std::chrono::seconds(2));
+
+  // Recoonect
+  result = cli.Post(
+      "/hi", content.size(),
+      [&content](size_t /*offset*/, size_t /*length*/, DataSink &sink) {
+        sink.write(content.c_str(), content.size());
+        return true;
+      },
+      "text/plain");
+  ASSERT_TRUE(result);
+  EXPECT_EQ(200, result->status);
+
+  result = cli.Post(
+      "/hi", content.size(),
+      [&content](size_t /*offset*/, size_t /*length*/, DataSink &sink) {
+        sink.write(content.c_str(), content.size());
+        return true;
+      },
+      "text/plain");
+  ASSERT_TRUE(result);
+  EXPECT_EQ(200, result->status);
+}
 #endif
 
 TEST(ClientProblemDetectionTest, ContentProvider) {
@@ -6958,166 +7385,6 @@ TEST(MultipartFormDataTest, ContentLength) {
 
 #endif
 
-#ifndef _WIN32
-class UnixSocketTest : public ::testing::Test {
-protected:
-  void TearDown() override { std::remove(pathname_.c_str()); }
-
-  void client_GET(const std::string &addr) {
-    httplib::Client cli{addr};
-    cli.set_address_family(AF_UNIX);
-    ASSERT_TRUE(cli.is_valid());
-
-    const auto &result = cli.Get(pattern_);
-    ASSERT_TRUE(result) << "error: " << result.error();
-
-    const auto &resp = result.value();
-    EXPECT_EQ(resp.status, StatusCode::OK_200);
-    EXPECT_EQ(resp.body, content_);
-  }
-
-  const std::string pathname_{"./httplib-server.sock"};
-  const std::string pattern_{"/hi"};
-  const std::string content_{"Hello World!"};
-};
-
-TEST_F(UnixSocketTest, pathname) {
-  httplib::Server svr;
-  svr.Get(pattern_, [&](const httplib::Request &, httplib::Response &res) {
-    res.set_content(content_, "text/plain");
-  });
-
-  std::thread t{[&] {
-    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(pathname_, 80));
-  }};
-  auto se = detail::scope_exit([&] {
-    svr.stop();
-    t.join();
-    ASSERT_FALSE(svr.is_running());
-  });
-
-  svr.wait_until_ready();
-  ASSERT_TRUE(svr.is_running());
-
-  client_GET(pathname_);
-}
-
-#if defined(__linux__) ||                                                      \
-    /* __APPLE__ */ (defined(SOL_LOCAL) && defined(SO_PEERPID))
-TEST_F(UnixSocketTest, PeerPid) {
-  httplib::Server svr;
-  std::string remote_port_val;
-  svr.Get(pattern_, [&](const httplib::Request &req, httplib::Response &res) {
-    res.set_content(content_, "text/plain");
-    remote_port_val = req.get_header_value("REMOTE_PORT");
-  });
-
-  std::thread t{[&] {
-    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(pathname_, 80));
-  }};
-  auto se = detail::scope_exit([&] {
-    svr.stop();
-    t.join();
-    ASSERT_FALSE(svr.is_running());
-  });
-
-  svr.wait_until_ready();
-  ASSERT_TRUE(svr.is_running());
-
-  client_GET(pathname_);
-  EXPECT_EQ(std::to_string(getpid()), remote_port_val);
-}
-#endif
-
-#ifdef __linux__
-TEST_F(UnixSocketTest, abstract) {
-  constexpr char svr_path[]{"\x00httplib-server.sock"};
-  const std::string abstract_addr{svr_path, sizeof(svr_path) - 1};
-
-  httplib::Server svr;
-  svr.Get(pattern_, [&](const httplib::Request &, httplib::Response &res) {
-    res.set_content(content_, "text/plain");
-  });
-
-  std::thread t{[&] {
-    ASSERT_TRUE(svr.set_address_family(AF_UNIX).listen(abstract_addr, 80));
-  }};
-  auto se = detail::scope_exit([&] {
-    svr.stop();
-    t.join();
-    ASSERT_FALSE(svr.is_running());
-  });
-
-  svr.wait_until_ready();
-  ASSERT_TRUE(svr.is_running());
-
-  client_GET(abstract_addr);
-}
-#endif
-
-TEST(SocketStream, is_writable_UNIX) {
-  int fds[2];
-  ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, fds));
-
-  const auto asSocketStream = [&](socket_t fd,
-                                  std::function<bool(Stream &)> func) {
-    return detail::process_client_socket(fd, 0, 0, 0, 0, func);
-  };
-  asSocketStream(fds[0], [&](Stream &s0) {
-    EXPECT_EQ(s0.socket(), fds[0]);
-    EXPECT_TRUE(s0.is_writable());
-
-    EXPECT_EQ(0, close(fds[1]));
-    EXPECT_FALSE(s0.is_writable());
-
-    return true;
-  });
-  EXPECT_EQ(0, close(fds[0]));
-}
-
-TEST(SocketStream, is_writable_INET) {
-  sockaddr_in addr;
-  memset(&addr, 0, sizeof(addr));
-  addr.sin_family = AF_INET;
-  addr.sin_port = htons(PORT + 1);
-  addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
-  int disconnected_svr_sock = -1;
-  std::thread svr{[&] {
-    const int s = socket(AF_INET, SOCK_STREAM, 0);
-    ASSERT_LE(0, s);
-    ASSERT_EQ(0, ::bind(s, reinterpret_cast<sockaddr *>(&addr), sizeof(addr)));
-    ASSERT_EQ(0, listen(s, 1));
-    ASSERT_LE(0, disconnected_svr_sock = accept(s, nullptr, nullptr));
-    ASSERT_EQ(0, close(s));
-  }};
-  std::this_thread::sleep_for(std::chrono::milliseconds(100));
-
-  std::thread cli{[&] {
-    const int s = socket(AF_INET, SOCK_STREAM, 0);
-    ASSERT_LE(0, s);
-    ASSERT_EQ(0, connect(s, reinterpret_cast<sockaddr *>(&addr), sizeof(addr)));
-    ASSERT_EQ(0, close(s));
-  }};
-  cli.join();
-  svr.join();
-  ASSERT_NE(disconnected_svr_sock, -1);
-
-  const auto asSocketStream = [&](socket_t fd,
-                                  std::function<bool(Stream &)> func) {
-    return detail::process_client_socket(fd, 0, 0, 0, 0, func);
-  };
-  asSocketStream(disconnected_svr_sock, [&](Stream &ss) {
-    EXPECT_EQ(ss.socket(), disconnected_svr_sock);
-    EXPECT_FALSE(ss.is_writable());
-
-    return true;
-  });
-
-  ASSERT_EQ(0, close(disconnected_svr_sock));
-}
-#endif // #ifndef _WIN32
-
 TEST(TaskQueueTest, IncreaseAtomicInteger) {
   static constexpr unsigned int number_of_tasks{1000000};
   std::atomic_uint count{0};
@@ -7432,6 +7699,18 @@ TEST(PathParamsTest, SequenceOfParams) {
   EXPECT_EQ(request.path_params, expected_params);
 }
 
+TEST(PathParamsTest, SemicolonInTheMiddleIsNotAParam) {
+  const auto pattern = "/prefix:suffix";
+  detail::PathParamsMatcher matcher(pattern);
+
+  Request request;
+  request.path = "/prefix:suffix";
+  ASSERT_TRUE(matcher.match(request));
+
+  const std::unordered_map<std::string, std::string> expected_params = {};
+  EXPECT_EQ(request.path_params, expected_params);
+}
+
 TEST(UniversalClientImplTest, Ipv6LiteralAddress) {
   // If ipv6 regex working, regex match codepath is taken.
   // else port will default to 80 in Client impl
@@ -7443,6 +7722,142 @@ TEST(UniversalClientImplTest, Ipv6LiteralAddress) {
   std::string ipV6TestURL = "http://[ff06::c3]";
 
   Client cli(ipV6TestURL + ":" + std::to_string(port), CLIENT_CERT_FILE,
-               CLIENT_PRIVATE_KEY_FILE);
+             CLIENT_PRIVATE_KEY_FILE);
   EXPECT_EQ(cli.port(), port);
 }
+
+TEST(FileSystemTest, FileAndDirExistenceCheck) {
+  auto file_path = "./www/dir/index.html";
+  auto dir_path = "./www/dir";
+
+  detail::FileStat stat_file(file_path);
+  EXPECT_TRUE(stat_file.is_file());
+  EXPECT_FALSE(stat_file.is_dir());
+
+  detail::FileStat stat_dir(dir_path);
+  EXPECT_FALSE(stat_dir.is_file());
+  EXPECT_TRUE(stat_dir.is_dir());
+}
+
+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_"}});
+}
+
+#ifndef _WIN32
+TEST(Expect100ContinueTest, ServerClosesConnection) {
+  static constexpr char reject[] = "Unauthorized";
+  static constexpr char accept[] = "Upload accepted";
+  constexpr size_t total_size = 10 * 1024 * 1024 * 1024ULL;
+
+  Server svr;
+
+  svr.set_expect_100_continue_handler(
+      [](const Request & /*req*/, Response &res) {
+        res.status = StatusCode::Unauthorized_401;
+        res.set_content(reject, "text/plain");
+        return res.status;
+      });
+  svr.Post("/", [&](const Request & /*req*/, Response &res) {
+    res.set_content(accept, "text/plain");
+  });
+
+  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();
+
+  {
+    const auto curl = std::unique_ptr<CURL, decltype(&curl_easy_cleanup)>{
+        curl_easy_init(), &curl_easy_cleanup};
+    ASSERT_NE(curl, nullptr);
+
+    curl_easy_setopt(curl.get(), CURLOPT_URL, HOST);
+    curl_easy_setopt(curl.get(), CURLOPT_PORT, PORT);
+    curl_easy_setopt(curl.get(), CURLOPT_POST, 1L);
+    auto list = std::unique_ptr<curl_slist, decltype(&curl_slist_free_all)>{
+        curl_slist_append(nullptr, "Content-Type: application/octet-stream"),
+        &curl_slist_free_all};
+    ASSERT_NE(list, nullptr);
+    curl_easy_setopt(curl.get(), CURLOPT_HTTPHEADER, list.get());
+
+    struct read_data {
+      size_t read_size;
+      size_t total_size;
+    } data = {0, total_size};
+    using read_callback_t =
+        size_t (*)(char *ptr, size_t size, size_t nmemb, void *userdata);
+    read_callback_t read_callback = [](char *ptr, size_t size, size_t nmemb,
+                                       void *userdata) -> size_t {
+      read_data *data = (read_data *)userdata;
+
+      if (!userdata || data->read_size >= data->total_size) { return 0; }
+
+      std::fill_n(ptr, size * nmemb, 'A');
+      data->read_size += size * nmemb;
+      return size * nmemb;
+    };
+    curl_easy_setopt(curl.get(), CURLOPT_READDATA, data);
+    curl_easy_setopt(curl.get(), CURLOPT_READFUNCTION, read_callback);
+
+    std::vector<char> buffer;
+    curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, &buffer);
+    using write_callback_t =
+        size_t (*)(char *ptr, size_t size, size_t nmemb, void *userdata);
+    write_callback_t write_callback = [](char *ptr, size_t size, size_t nmemb,
+                                         void *userdata) -> size_t {
+      std::vector<char> *buffer = (std::vector<char> *)userdata;
+      buffer->reserve(buffer->size() + size * nmemb + 1);
+      buffer->insert(buffer->end(), (char *)ptr, (char *)ptr + size * nmemb);
+      return size * nmemb;
+    };
+    curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, write_callback);
+
+    {
+      const auto res = curl_easy_perform(curl.get());
+      ASSERT_EQ(res, CURLE_OK);
+    }
+
+    {
+      auto response_code = long{};
+      const auto res =
+          curl_easy_getinfo(curl.get(), CURLINFO_RESPONSE_CODE, &response_code);
+      ASSERT_EQ(res, CURLE_OK);
+      ASSERT_EQ(response_code, StatusCode::Unauthorized_401);
+    }
+
+    {
+      auto dl = curl_off_t{};
+      const auto res =
+          curl_easy_getinfo(curl.get(), CURLINFO_SIZE_DOWNLOAD_T, &dl);
+      ASSERT_EQ(res, CURLE_OK);
+      ASSERT_EQ(dl, (curl_off_t)sizeof reject - 1);
+    }
+
+    {
+      buffer.push_back('\0');
+      ASSERT_STRCASEEQ(buffer.data(), reject);
+    }
+  }
+}
+#endif

test/www/file

@@ -0,0 +1 @@
+file

test/www/meson.build

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: 2024 Andrea Pappacoda
+#
+# SPDX-License-Identifier: MIT
+
+configure_file(input: 'empty_file', output: 'empty_file', copy: true)
+configure_file(input: 'file',       output: 'file',       copy: true)
+subdir('dir')