Release v0.10.3

A pkg-config file was previously installed only if cpp-httplib was being
built as a compiled library.

Since architecture-independent .pc files
can exist in /usr/share/pkgconfig, it can be useful to install one even
when installing the header-only version (for example, it could be used
by third party projects to easily find out if cpp-httplib is installed
and its version, using something like Meson's `dependency()` or CMake's
`pkg_check_modules()`).

The change makes the Meson build behave a bit more like the CMake one,
as it also always installs a CMake Config file, but here the pkg-config
file gets installed to the correct architecture-independent directory
(`datadir` represents /usr/share on Linux and simiar systems).

Lastly, I made some minor cleanups.

.github/workflows/cifuzz.yaml

@@ -0,0 +1,26 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'cpp-httplib'
+        dry-run: false
+        language: c++
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'cpp-httplib'
+        fuzz-seconds: 600
+        dry-run: false
+        language: c++
+    - name: Upload Crash
+      uses: actions/upload-artifact@v1
+      if: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts

.github/workflows/test.yaml

@@ -29,7 +29,7 @@ jobs:
       run: cd test && make -j2
     - name: check fuzz test target
       if: matrix.os == 'ubuntu-latest'
-      run: cd test && make -f Makefile.fuzz_test
+      run: cd test && make fuzz_test
     - name: setup msbuild on windows
       if: matrix.os == 'windows-latest'
       uses: microsoft/setup-msbuild@v1.0.2
@@ -39,55 +39,3 @@ jobs:
         cd test
         msbuild.exe test.sln /verbosity:minimal /t:Build "/p:Configuration=Release;Platform=x64"
         x64\Release\test.exe
-
-
-  meson-build:
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
-
-    steps:
-    - name: Prepare Git for checkout on Windows
-      if: matrix.os == 'windows-latest'
-      run: |
-        git config --global core.autocrlf false
-        git config --global core.eol lf
-
-    - uses: actions/checkout@v2
-
-    - name: Install dependencies on Linux
-      if: matrix.os == 'ubuntu-latest'
-      run: sudo apt-get -qq update && sudo apt-get -qq install meson libssl-dev zlib1g-dev libbrotli-dev libgtest-dev
-
-    - name: Install dependencies on MacOS
-      if: matrix.os == 'macos-latest'
-      run: brew install meson openssl brotli googletest
-
-    - name: Setup MSVC on Windows
-      if: matrix.os == 'windows-latest'
-      uses: ilammy/msvc-dev-cmd@v1
-
-    # It is necessary to remove MinGW and StrawberryPerl as they both provide
-    # GCC. This causes issues because CMake prefers to use MSVC, while Meson
-    # uses GCC, if found, causing linking errors.
-    - name: Install dependencies on Windows
-      if: matrix.os == 'windows-latest'
-      run: |
-        choco uninstall mingw strawberryperl --yes --all-versions --remove-dependencies --skip-autouninstaller --no-color
-        Remove-Item -Path C:\Strawberry -Recurse
-        choco install pkgconfiglite --yes --skip-virus-check --no-color
-        pip install meson ninja
-        Invoke-WebRequest -Uri https://github.com/google/googletest/archive/refs/heads/master.zip -OutFile googletest-master.zip
-        Expand-Archive -Path googletest-master.zip
-        cd googletest-master\googletest-master
-        cmake -S . -B build -DINSTALL_GTEST=ON -DBUILD_GMOCK=OFF -Dgtest_hide_internal_symbols=ON -DCMAKE_INSTALL_PREFIX=C:/googletest
-        cmake --build build --config=Release
-        cmake --install build --config=Release
-        cd ..\..
-
-    - name: Build and test
-      run: |
-        meson setup build -Dcpp-httplib_test=true -Dpkg_config_path=C:\googletest\lib\pkgconfig -Db_vscrt=static_from_buildtype
-        meson test --no-stdsplit --print-errorlogs -C build

.gitignore

@@ -13,10 +13,12 @@ example/*.pem
 test/httplib.cc
 test/httplib.h
 test/test
+test/server_fuzzer
 test/test_proxy
 test/test_split
 test/test.xcodeproj/xcuser*
 test/test.xcodeproj/*/xcuser*
+test/*.o
 test/*.pem
 test/*.srl
 

CMakeLists.txt

@@ -60,27 +60,11 @@
 ]]
 cmake_minimum_required(VERSION 3.14.0 FATAL_ERROR)
 
-# On systems without Git installed, there were errors since execute_process seemed to not throw an error without it?
-find_package(Git QUIET)
-if(Git_FOUND)
-	# Gets the latest tag as a string like "v0.6.6"
-	# Can silently fail if git isn't on the system
-	execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --abbrev=0
-		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-		OUTPUT_VARIABLE _raw_version_string
-		ERROR_VARIABLE _git_tag_error
-	)
-endif()
-
-# execute_process can fail silenty, so check for an error
-# if there was an error, just use the user agent as a version
-if(_git_tag_error OR NOT Git_FOUND)
-	message(WARNING "cpp-httplib failed to find the latest Git tag, falling back to using user agent as the version.")
 # Get the user agent and use it as a version
 # This gets the string with the user agent from the header.
 # This is so the maintainer doesn't actually need to update this manually.
 file(STRINGS httplib.h _raw_version_string REGEX "User\-Agent.*cpp\-httplib/([0-9]+\.?)+")
-endif()
+
 # Needed since git tags have "v" prefixing them.
 # Also used if the fallback to user agent string is being used.
 string(REGEX MATCH "([0-9]+\\.?)+" _httplib_version "${_raw_version_string}")

README.md

@@ -220,7 +220,7 @@ svr.set_exception_handler([](const auto& req, auto& res, std::exception &e) {
 ### Pre routing handler
 
 ```cpp
-svr.set_pre_routing_handler([](const auto& req, auto& res) -> bool {
+svr.set_pre_routing_handler([](const auto& req, auto& res) {
   if (req.path == "/hello") {
     res.set_content("world", "text/html");
     return Server::HandlerResponse::Handled;
@@ -303,7 +303,7 @@ Without content length:
 svr.Get("/stream", [&](const Request &req, Response &res) {
   res.set_content_provider(
     "text/plain", // Content type
-    [&](size_t offset, size_t length, DataSink &sink) {
+    [&](size_t offset, DataSink &sink) {
       if (/* there is still data */) {
         std::vector<char> data;
         // prepare data...
@@ -746,6 +746,12 @@ res = cli.Get("/resource/foo", {{"Accept-Encoding", "gzip, deflate, br"}});
 res->body; // Compressed data
 ```
 
+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`.
+
+
 Split httplib.h into .h and .cc
 -------------------------------
 

example/Dockerfile.hello

@@ -0,0 +1,12 @@
+FROM alpine as builder
+WORKDIR /src/example
+RUN apk add g++ make openssl-dev zlib-dev brotli-dev
+COPY ./httplib.h /src
+COPY ./example/hello.cc /src/example
+COPY ./example/Makefile /src/example
+RUN make hello
+
+FROM alpine
+RUN apk --no-cache add brotli libstdc++
+COPY --from=builder /src/example/hello /bin/hello
+CMD ["/bin/hello"]

example/Makefile

@@ -1,14 +1,17 @@
-
 #CXX = clang++
-CXXFLAGS = -std=c++11 -I.. -Wall -Wextra -pthread
+CXXFLAGS = -O2 -std=c++11 -I.. -Wall -Wextra -pthread
 
-OPENSSL_DIR = /usr/local/opt/openssl
+PREFIX = /usr/local
+#PREFIX = $(shell brew --prefix)
+
+OPENSSL_DIR = $(PREFIX)/opt/openssl@1.1
+#OPENSSL_DIR = $(PREFIX)/opt/openssl@3
 OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
 
 ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz
 
-BROTLI_DIR = /usr/local/opt/brotli
+BROTLI_DIR = $(PREFIX)/opt/brotli
-# BROTLI_SUPPORT = -DCPPHTTPLIB_BROTLI_SUPPORT -I$(BROTLI_DIR)/include -L$(BROTLI_DIR)/lib -lbrotlicommon-static -lbrotlienc-static -lbrotlidec-static
+BROTLI_SUPPORT = -DCPPHTTPLIB_BROTLI_SUPPORT -I$(BROTLI_DIR)/include -L$(BROTLI_DIR)/lib -lbrotlicommon -lbrotlienc -lbrotlidec
 
 all: server client hello simplecli simplesvr upload redirect ssesvr ssecli benchmark
 
@@ -47,4 +50,4 @@ 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 sselci benchmark *.pem
+	rm server client hello simplecli simplesvr upload redirect ssesvr ssecli benchmark *.pem

example/hello.cc

@@ -15,5 +15,5 @@ int main(void) {
     res.set_content("Hello World!", "text/plain");
   });
 
-  svr.listen("localhost", 8080);
+  svr.listen("0.0.0.0", 8080);
 }

example/uploader.sh

@@ -0,0 +1,6 @@
+#/usr/bin/env bash
+for i in {1..10000}
+do
+  echo "#### $i ####"
+  curl -X POST -F image_file=@$1 http://localhost:1234/post > /dev/null
+done

meson.build

@@ -19,23 +19,13 @@ project(
 # Check just in case downstream decides to edit the source
 # and add a project version
 version = meson.project_version()
-if version == 'undefined'
+python3 = find_program('python3')
-  git = find_program('git', required: false)
-  if git.found()
-    result = run_command(git, 'describe', '--tags', '--abbrev=0')
-    if result.returncode() == 0
-      version = result.stdout().strip('v\n')
-    endif
-  endif
-endif
-
-python = import('python').find_installation('python3')
-# If version is still undefined it means that the git method failed
 if version == 'undefined'
   # Meson doesn't have regular expressions, but since it is implemented
   # in python we can be sure we can use it to parse the file manually
   version = run_command(
-      python, '-c', 'import re; raw_version = re.search("User\-Agent.*cpp\-httplib/([0-9]+\.?)+", open("httplib.h").read()).group(0); print(re.search("([0-9]+\\.?)+", raw_version).group(0))'
+      python3, '-c', 'import re; raw_version = re.search("User\-Agent.*cpp\-httplib/([0-9]+\.?)+", open("httplib.h").read()).group(0); print(re.search("([0-9]+\\.?)+", raw_version).group(0))',
+      check: true
   ).stdout().strip()
 endif
 
@@ -79,7 +69,7 @@ if get_option('cpp-httplib_compile')
     'split',
     input: 'httplib.h',
     output: ['httplib.cc', 'httplib.h'],
-    command: [python, files('split.py'), '--out', meson.current_build_dir()],
+    command: [python3, files('split.py'), '--out', meson.current_build_dir()],
     install: true,
     install_dir: [false, get_option('includedir')]
   )
@@ -91,17 +81,26 @@ if get_option('cpp-httplib_compile')
     version: version,
     install: true
   )
-  cpp_httplib_dep = declare_dependency(link_with: lib, sources: httplib_ch[1])
+  cpp_httplib_dep = declare_dependency(compile_args: args, dependencies: deps, link_with: lib, sources: httplib_ch[1])
 
   import('pkgconfig').generate(
     lib,
     description: 'A C++ HTTP/HTTPS server and client library',
+    extra_cflags: args,
     url: 'https://github.com/yhirose/cpp-httplib',
     version: version
   )
 else
   install_headers('httplib.h')
-  cpp_httplib_dep = declare_dependency(include_directories: include_directories('.'), dependencies: deps)
+  cpp_httplib_dep = declare_dependency(compile_args: args, dependencies: deps, include_directories: 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'),
+    url: 'https://github.com/yhirose/cpp-httplib',
+    version: version
+  )
 endif
 
 if meson.version().version_compare('>=0.54.0')

meson_options.txt

@@ -5,5 +5,5 @@
 option('cpp-httplib_openssl', type: 'feature', value: 'auto', description: 'Enable OpenSSL support')
 option('cpp-httplib_zlib',    type: 'feature', value: 'auto', description: 'Enable zlib support')
 option('cpp-httplib_brotli',  type: 'feature', value: 'auto', description: 'Enable Brotli support')
-option('cpp-httplib_compile', type: 'boolean', value: false,  description: 'Split the header into a compilable header & source file (requires Python 3)')
+option('cpp-httplib_compile', type: 'boolean', value: false,  description: 'Split the header into a compilable header & source file')
 option('cpp-httplib_test',    type: 'boolean', value: false,  description: 'Build tests')

test/Makefile

@@ -1,20 +1,30 @@
-#CXX = clang++
+CXX = clang++
-CXXFLAGS = -g -std=c++11 -I. -Wall -Wextra -Wtype-limits -Wconversion #-fsanitize=address
+CXXFLAGS = -g -std=c++11 -I. -Wall -Wextra -Wtype-limits -Wconversion # -fno-exceptions -DCPPHTTPLIB_NO_EXCEPTIONS -fsanitize=address
 
-OPENSSL_DIR = /usr/local/opt/openssl@1.1
+PREFIX = /usr/local
+#PREFIX = $(shell brew --prefix)
+
+OPENSSL_DIR = $(PREFIX)/opt/openssl@1.1
+#OPENSSL_DIR = $(PREFIX)/opt/openssl@3
 OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
 
 ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz
 
-BROTLI_DIR = /usr/local/opt/brotli
+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
 
+# By default, use standalone_fuzz_target_runner.
+# This runner does no fuzzing, but simply executes the inputs
+# provided via parameters.
+# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"
+# to link the fuzzer(s) against a real fuzzing engine.
+# OSS-Fuzz will define its own value for LIB_FUZZING_ENGINE.
+LIB_FUZZING_ENGINE ?= standalone_fuzz_target_runner.o
+
 all : test test_split
 	./test
-# Note: The intention of test_split is to verify that it works to compile and
-# link the split httplib.h, so there is normally no need to execute it.
 
 proxy : test_proxy
 	./test_proxy
@@ -22,12 +32,28 @@ proxy : test_proxy
 test : test.cc include_httplib.cc ../httplib.h Makefile cert.pem
 	$(CXX) -o $@ -I.. $(CXXFLAGS) test.cc include_httplib.cc $(TEST_ARGS)
 
+# Note: The intention of test_split is to verify that it works to compile and
+# link the split httplib.h, so there is normally no need to execute it.
 test_split : test.cc ../httplib.h httplib.cc Makefile cert.pem
 	$(CXX) -o $@ $(CXXFLAGS) test.cc httplib.cc $(TEST_ARGS)
 
 test_proxy : test_proxy.cc ../httplib.h Makefile cert.pem
 	$(CXX) -o $@ -I.. $(CXXFLAGS) test_proxy.cc $(TEST_ARGS)
 
+# Runs server_fuzzer.cc based on value of $(LIB_FUZZING_ENGINE).
+# Usage: make fuzz_test LIB_FUZZING_ENGINE=/path/to/libFuzzer
+fuzz_test: server_fuzzer
+	./server_fuzzer fuzzing/corpus/*
+
+# Fuzz target, so that you can choose which $(LIB_FUZZING_ENGINE) to use.
+server_fuzzer : fuzzing/server_fuzzer.cc ../httplib.h standalone_fuzz_target_runner.o
+	$(CXX) -o $@ -I.. $(CXXFLAGS) $< $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT) $(BROTLI_SUPPORT) $(LIB_FUZZING_ENGINE) -pthread
+
+# Standalone fuzz runner, which just reads inputs from fuzzing/corpus/ dir and
+# feeds it to server_fuzzer.
+standalone_fuzz_target_runner.o : fuzzing/standalone_fuzz_target_runner.cpp
+	$(CXX) -o $@ -I.. $(CXXFLAGS) -c $<
+
 httplib.cc : ../httplib.h
 	python3 ../split.py -o .
 
@@ -42,4 +68,4 @@ cert.pem:
 	#c_rehash .
 
 clean:
-	rm -f test test_proxy pem *.0 *.1 *.srl httplib.h httplib.cc
+	rm -f test test_split test_proxy server_fuzzer *.pem *.0 *.o *.1 *.srl httplib.h httplib.cc

test/Makefile.fuzz_test

@@ -1,36 +0,0 @@
-
-#CXX = clang++
-CXXFLAGS += -ggdb -O0 -std=c++11 -DGTEST_USE_OWN_TR1_TUPLE -I.. -I. -Wall -Wextra -Wtype-limits -Wconversion
-
-OPENSSL_DIR = /usr/local/opt/openssl@1.1
-OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
-
-ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz
-
-BROTLI_DIR = /usr/local/opt/brotli
-BROTLI_SUPPORT = -DCPPHTTPLIB_BROTLI_SUPPORT -I$(BROTLI_DIR)/include -L$(BROTLI_DIR)/lib -lbrotlicommon -lbrotlienc -lbrotlidec
-
-# By default, use standalone_fuzz_target_runner.
-# This runner does no fuzzing, but simply executes the inputs
-# provided via parameters.
-# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"
-# to link the fuzzer(s) against a real fuzzing engine.
-# OSS-Fuzz will define its own value for LIB_FUZZING_ENGINE.
-LIB_FUZZING_ENGINE ?= standalone_fuzz_target_runner.o
-
-# Runs server_fuzzer.cc based on value of $(LIB_FUZZING_ENGINE).
-# Usage: make fuzz_test LIB_FUZZING_ENGINE=/path/to/libFuzzer
-all fuzz_test: server_fuzzer
-	./server_fuzzer fuzzing/corpus/*
-
-# Fuzz target, so that you can choose which $(LIB_FUZZING_ENGINE) to use.
-server_fuzzer : fuzzing/server_fuzzer.cc ../httplib.h standalone_fuzz_target_runner.o
-	$(CXX) $(CXXFLAGS) -o $@  $< $(OPENSSL_SUPPORT)  $(ZLIB_SUPPORT) $(BROTLI_SUPPORT) $(LIB_FUZZING_ENGINE) -pthread
-
-# Standalone fuzz runner, which just reads inputs from fuzzing/corpus/ dir and
-# feeds it to server_fuzzer.
-standalone_fuzz_target_runner.o : fuzzing/standalone_fuzz_target_runner.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-clean:
-	rm -f server_fuzzer pem *.0 *.o *.1 *.srl *.zip

test/fuzzing/corpus/clusterfuzz-testcase-minimized-server_fuzzer-6508706672541696

@@ -0,0 +1,7 @@
+PUT { HTTP/1.0
+Content-Type:multipart/form-databoundary=m
+Range:bytes=-
+
+--m
+C
+c





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Line truncated

test/fuzzing/standalone_fuzz_target_runner.cpp

@@ -20,12 +20,12 @@ int main(int argc, char **argv) {
   for (int i = 1; i < argc; i++) {
     std::ifstream in(argv[i]);
     in.seekg(0, in.end);
-    size_t length = in.tellg();
+    size_t length = static_cast<size_t>(in.tellg());
     in.seekg (0, in.beg);
     std::cout << "Reading " << length << " bytes from " << argv[i] << std::endl;
     // Allocate exactly length bytes so that we reliably catch buffer overflows.
     std::vector<char> bytes(length);
-    in.read(bytes.data(), bytes.size());
+    in.read(bytes.data(), static_cast<std::streamsize>(bytes.size()));
     LLVMFuzzerTestOneInput(reinterpret_cast<const uint8_t *>(bytes.data()),
                            bytes.size());
     std::cout << "Execution successful" << std::endl;

test/proxy/down.sh

@@ -1 +0,0 @@
-docker-compose down --rmi all

test/proxy/up.sh

@@ -1 +0,0 @@
-docker-compose up -d

test/test.cc

@@ -37,8 +37,12 @@ MultipartFormData &get_file_value(MultipartFormDataItems &files,
   auto it = std::find_if(
       files.begin(), files.end(),
       [&](const MultipartFormData &file) { return file.name == key; });
+#ifdef CPPHTTPLIB_NO_EXCEPTIONS
+  return *it;
+#else
   if (it != files.end()) { return *it; }
   throw std::runtime_error("invalid mulitpart form data name error");
+#endif
 }
 
 TEST(ConstructorTest, MoveConstructible) {
@@ -54,6 +58,14 @@ TEST(StartupTest, WSAStartup) {
 }
 #endif
 
+TEST(DecodeURLTest, PercentCharacter) {
+  EXPECT_EQ(
+      detail::decode_url(
+          R"(descrip=Gastos%20%C3%A1%C3%A9%C3%AD%C3%B3%C3%BA%C3%B1%C3%91%206)",
+          false),
+      R"(descrip=Gastos áéíóúñÑ 6)");
+}
+
 TEST(EncodeQueryParamTest, ParseUnescapedChararactersTest) {
   string unescapedCharacters = "-_.!~*'()";
 
@@ -171,6 +183,12 @@ TEST(GetHeaderValueTest, RegularValue) {
   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");
+  EXPECT_STREQ("text/html", val);
+}
+
 TEST(GetHeaderValueTest, SetContent) {
   Response res;
 
@@ -383,6 +401,31 @@ TEST(ChunkedEncodingTest, FromHTTPWatch_Online) {
   EXPECT_EQ(out, res->body);
 }
 
+TEST(HostnameToIPConversionTest, HTTPWatch_Online) {
+  auto host = "www.httpwatch.com";
+
+  auto ip = hosted_at(host);
+  EXPECT_EQ("191.236.16.12", ip);
+
+  std::vector<std::string> addrs;
+  hosted_at(host, addrs);
+  EXPECT_EQ(1u, addrs.size());
+}
+
+#if 0 // It depends on each test environment...
+TEST(HostnameToIPConversionTest, YouTube_Online) {
+  auto host = "www.youtube.com";
+
+  std::vector<std::string> addrs;
+  hosted_at(host, addrs);
+
+  EXPECT_EQ(20u, addrs.size());
+
+  auto it = std::find(addrs.begin(), addrs.end(), "2607:f8b0:4006:809::200e");
+  EXPECT_TRUE(it != addrs.end());
+}
+#endif
+
 TEST(ChunkedEncodingTest, WithContentReceiver_Online) {
   auto host = "www.httpwatch.com";
 
@@ -567,7 +610,7 @@ TEST(ConnectionErrorTest, InvalidPort) {
   EXPECT_EQ(Error::Connection, res.error());
 }
 
-TEST(ConnectionErrorTest, Timeout) {
+TEST(ConnectionErrorTest, Timeout_Online) {
   auto host = "google.com";
 
 #ifdef CPPHTTPLIB_OPENSSL_SUPPORT
@@ -579,9 +622,14 @@ TEST(ConnectionErrorTest, Timeout) {
 #endif
   cli.set_connection_timeout(std::chrono::seconds(2));
 
+  // only probe one address type so that the error reason
+  // correlates to the timed-out IPv4, not the unsupported
+  // IPv6 connection attempt
+  cli.set_address_family(AF_INET);
+
   auto res = cli.Get("/");
   ASSERT_TRUE(!res);
-  EXPECT_TRUE(res.error() == Error::Connection);
+  EXPECT_EQ(Error::ConnectionTimeout, res.error());
 }
 
 TEST(CancelTest, NoCancel_Online) {
@@ -736,6 +784,39 @@ TEST(DigestAuthTest, FromHTTPWatch_Online) {
 }
 #endif
 
+TEST(SpecifyServerIPAddressTest, AnotherHostname_Online) {
+  auto host = "google.com";
+  auto another_host = "example.com";
+  auto wrong_ip = "0.0.0.0";
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  SSLClient cli(host);
+#else
+  Client cli(host);
+#endif
+
+  cli.set_hostname_addr_map({{another_host, wrong_ip}});
+  auto res = cli.Get("/");
+  ASSERT_TRUE(res);
+  ASSERT_EQ(301, res->status);
+}
+
+TEST(SpecifyServerIPAddressTest, RealHostname_Online) {
+  auto host = "google.com";
+  auto wrong_ip = "0.0.0.0";
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  SSLClient cli(host);
+#else
+  Client cli(host);
+#endif
+
+  cli.set_hostname_addr_map({{host, wrong_ip}});
+  auto res = cli.Get("/");
+  ASSERT_TRUE(!res);
+  EXPECT_EQ(Error::Connection, res.error());
+}
+
 TEST(AbsoluteRedirectTest, Redirect_Online) {
   auto host = "nghttp2.org";
 
@@ -1148,14 +1229,16 @@ TEST(ErrorHandlerTest, ContentLength) {
   ASSERT_FALSE(svr.is_running());
 }
 
+#ifndef CPPHTTPLIB_NO_EXCEPTIONS
 TEST(ExceptionHandlerTest, ContentLength) {
   Server svr;
 
-  svr.set_exception_handler(
+  svr.set_exception_handler([](const Request & /*req*/, Response &res,
-      [](const Request & /*req*/, Response &res, std::exception & /*e*/) {
+                               std::exception &e) {
+    EXPECT_EQ("abc", std::string(e.what()));
     res.status = 500;
     res.set_content("abcdefghijklmnopqrstuvwxyz",
-                        "text/html"); // <= Content-Length still 13
+                    "text/html"); // <= Content-Length still 13 at this point
   });
 
   svr.Get("/hi", [](const Request & /*req*/, Response &res) {
@@ -1168,9 +1251,10 @@ TEST(ExceptionHandlerTest, ContentLength) {
   // Give GET time to get a few messages.
   std::this_thread::sleep_for(std::chrono::seconds(1));
 
-  {
+  for (size_t i = 0; i < 10; i++) {
     Client cli(HOST, PORT);
 
+    for (size_t j = 0; j < 100; j++) {
       auto res = cli.Get("/hi");
       ASSERT_TRUE(res);
       EXPECT_EQ(500, res->status);
@@ -1179,10 +1263,23 @@ TEST(ExceptionHandlerTest, ContentLength) {
       EXPECT_EQ("abcdefghijklmnopqrstuvwxyz", res->body);
     }
 
+    cli.set_keep_alive(true);
+
+    for (size_t j = 0; j < 100; j++) {
+      auto res = cli.Get("/hi");
+      ASSERT_TRUE(res);
+      EXPECT_EQ(500, res->status);
+      EXPECT_EQ("text/html", res->get_header_value("Content-Type"));
+      EXPECT_EQ("26", res->get_header_value("Content-Length"));
+      EXPECT_EQ("abcdefghijklmnopqrstuvwxyz", res->body);
+    }
+  }
+
   svr.stop();
   thread.join();
   ASSERT_FALSE(svr.is_running());
 }
+#endif
 
 TEST(NoContentTest, ContentLength) {
   Server svr;
@@ -1571,6 +1668,11 @@ protected:
                 EXPECT_EQ("0", req.get_header_value("Content-Length"));
                 res.set_content("empty-no-content-type", "text/plain");
               })
+        .Post("/post-large",
+             [&](const Request &req, Response &res) {
+               EXPECT_EQ(req.body, LARGE_DATA);
+               res.set_content(req.body, "text/plain");
+             })
         .Put("/empty-no-content-type",
              [&](const Request &req, Response &res) {
                EXPECT_EQ(req.body, "");
@@ -1976,6 +2078,13 @@ TEST_F(ServerTest, PostEmptyContentWithNoContentType) {
   ASSERT_EQ("empty-no-content-type", res->body);
 }
 
+TEST_F(ServerTest, PostLarge) {
+  auto res = cli_.Post("/post-large", LARGE_DATA, "text/plain");
+  ASSERT_TRUE(res);
+  ASSERT_EQ(200, res->status);
+  EXPECT_EQ(LARGE_DATA, res->body);
+}
+
 TEST_F(ServerTest, PutEmptyContentWithNoContentType) {
   auto res = cli_.Put("/empty-no-content-type");
   ASSERT_TRUE(res);
@@ -3321,7 +3430,7 @@ 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, nullptr,
       /*connection_timeout_sec=*/5, 0,
       /*read_timeout_sec=*/5, 0,
       /*write_timeout_sec=*/5, 0, std::string(), error);
@@ -3580,7 +3689,8 @@ TEST(StreamingTest, NoContentLengthStreaming) {
 
   auto get_thread = std::thread([&client]() {
     std::string s;
-    auto res = client.Get("/stream", [&s](const char *data, size_t len) -> bool {
+    auto res =
+        client.Get("/stream", [&s](const char *data, size_t len) -> bool {
           s += std::string(data, len);
           return true;
         });
@@ -3642,6 +3752,7 @@ TEST(MountTest, Unmount) {
   ASSERT_FALSE(svr.is_running());
 }
 
+#ifndef CPPHTTPLIB_NO_EXCEPTIONS
 TEST(ExceptionTest, ThrowExceptionInHandler) {
   Server svr;
 
@@ -3670,6 +3781,7 @@ TEST(ExceptionTest, ThrowExceptionInHandler) {
   listen_thread.join();
   ASSERT_FALSE(svr.is_running());
 }
+#endif
 
 TEST(KeepAliveTest, ReadTimeout) {
   Server svr;
@@ -3709,6 +3821,36 @@ TEST(KeepAliveTest, ReadTimeout) {
   ASSERT_FALSE(svr.is_running());
 }
 
+TEST(KeepAliveTest, Issue1041) {
+  const auto resourcePath = "/hi";
+
+  Server svr;
+  svr.set_keep_alive_timeout(3);
+
+  svr.Get(resourcePath, [](const httplib::Request &, httplib::Response &res) {
+    res.set_content("Hello World!", "text/plain");
+  });
+
+  auto a2 = std::async(std::launch::async, [&svr] { svr.listen(HOST, PORT); });
+  std::this_thread::sleep_for(std::chrono::milliseconds(200));
+
+  Client cli(HOST, PORT);
+  cli.set_keep_alive(true);
+
+  auto result = cli.Get(resourcePath);
+  ASSERT_TRUE(result);
+  EXPECT_EQ(200, result->status);
+
+  std::this_thread::sleep_for(std::chrono::seconds(5));
+
+  result = cli.Get(resourcePath);
+  ASSERT_TRUE(result);
+  EXPECT_EQ(200, result->status);
+
+  svr.stop();
+  a2.wait();
+}
+
 TEST(ClientProblemDetectionTest, ContentProvider) {
   Server svr;
 
@@ -4392,6 +4534,75 @@ TEST(SSLClientServerTest, SSLConnectTimeout) {
   svr.stop();
   t.join();
 }
+
+TEST(SSLClientServerTest, CustomizeServerSSLCtx) {
+  auto setup_ssl_ctx_callback = [](SSL_CTX &ssl_ctx) {
+    SSL_CTX_set_options(&ssl_ctx, SSL_OP_NO_COMPRESSION);
+    SSL_CTX_set_options(&ssl_ctx,
+                        SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
+    SSL_CTX_set_options(&ssl_ctx, SSL_OP_NO_SSLv2);
+    SSL_CTX_set_options(&ssl_ctx, SSL_OP_NO_SSLv3);
+    SSL_CTX_set_options(&ssl_ctx, SSL_OP_NO_TLSv1);
+    SSL_CTX_set_options(&ssl_ctx, SSL_OP_NO_TLSv1_1);
+    auto ciphers = "ECDHE-RSA-AES128-SHA256:"
+                   "ECDHE-DSS-AES128-SHA256:"
+                   "ECDHE-RSA-AES256-SHA256:"
+                   "ECDHE-DSS-AES256-SHA256:";
+    SSL_CTX_set_cipher_list(&ssl_ctx, ciphers);
+    if (SSL_CTX_use_certificate_chain_file(&ssl_ctx, SERVER_CERT_FILE) != 1 ||
+        SSL_CTX_use_PrivateKey_file(&ssl_ctx, SERVER_PRIVATE_KEY_FILE,
+                                    SSL_FILETYPE_PEM) != 1) {
+      return false;
+    }
+    SSL_CTX_load_verify_locations(&ssl_ctx, CLIENT_CA_CERT_FILE,
+                                  CLIENT_CA_CERT_DIR);
+    SSL_CTX_set_verify(
+        &ssl_ctx,
+        SSL_VERIFY_PEER |
+            SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE,
+        nullptr);
+    return true;
+  };
+  SSLServer svr(setup_ssl_ctx_callback);
+  ASSERT_TRUE(svr.is_valid());
+
+  svr.Get("/test", [&](const Request &req, Response &res) {
+    res.set_content("test", "text/plain");
+    svr.stop();
+    ASSERT_TRUE(true);
+
+    auto peer_cert = SSL_get_peer_certificate(req.ssl);
+    ASSERT_TRUE(peer_cert != nullptr);
+
+    auto subject_name = X509_get_subject_name(peer_cert);
+    ASSERT_TRUE(subject_name != nullptr);
+
+    std::string common_name;
+    {
+      char name[BUFSIZ];
+      auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName,
+                                                name, sizeof(name));
+      common_name.assign(name, static_cast<size_t>(name_len));
+    }
+
+    EXPECT_EQ("Common Name", common_name);
+
+    X509_free(peer_cert);
+  });
+
+  thread t = thread([&]() { ASSERT_TRUE(svr.listen(HOST, PORT)); });
+  std::this_thread::sleep_for(std::chrono::milliseconds(1));
+
+  SSLClient cli(HOST, PORT, CLIENT_CERT_FILE, CLIENT_PRIVATE_KEY_FILE);
+  cli.enable_server_certificate_verification(false);
+  cli.set_connection_timeout(30);
+
+  auto res = cli.Get("/test");
+  ASSERT_TRUE(res);
+  ASSERT_EQ(200, res->status);
+
+  t.join();
+}
 #endif
 
 #ifdef _WIN32
@@ -4407,9 +4618,11 @@ TEST(NoSSLSupport, SimpleInterface) {
 }
 #endif
 
+#ifndef CPPHTTPLIB_NO_EXCEPTIONS
 TEST(InvalidScheme, SimpleInterface) {
   ASSERT_ANY_THROW(Client cli("scheme://yahoo.com"));
 }
+#endif
 
 TEST(NoScheme, SimpleInterface) {
   Client cli("yahoo.com:80");