Fixed problem with stop on windows

* Revert "Removed CMakeLists.txt. (Fix #421)"

This reverts commit 8674555b88.

* Fail if cmake version too old

Previous behaviour is just a warning.

* Improve CMakeLists

Adds automatic dependency finding (if they were used).
Adds a way to require a specific version in the find_package(httplib) call.

You should link against the httplib::httplib IMPORTED target, which is
created automatically.

Add options to allow for strictly requiring OpenSSL/ZLIB

HTTPLIB_REQUIRE_OPENSSL & HTTPLIB_REQUIRE_ZLIB require the libs be found, or the build fails.

HTTPLIB_USE_OPENSSL_IF_AVAILABLE & HTTPLIB_USE_ZLIB_IF_AVAILABLE silently search for the libs.
If they aren't found, the build still continues, but shuts off support for those features.

* Add documentation to CMakeLists.txt

Has info on all the available options and what targets are produced.

Also put some things about installation on certain platforms.

.gitignore

@@ -3,6 +3,7 @@ tags
 example/server
 example/client
 example/hello
+example/simplecli
 example/simplesvr
 example/benchmark
 example/redirect

.travis.yml

@@ -1,14 +0,0 @@
-# Environment
-language: cpp
-os:
-  - linux
-  - osx
-
-# Compiler selection
-compiler:
-  - clang
-
-# Build/test steps
-script:
-  - cd ${TRAVIS_BUILD_DIR}/test
-  - make all

CMakeLists.txt

@@ -1,29 +1,160 @@
-cmake_minimum_required(VERSION 3.7.0)
+#[[
-project(httplib)
+	Build options:
+	* HTTPLIB_USE_OPENSSL_IF_AVAILABLE (default on)
+	* HTTPLIB_USE_ZLIB_IF_AVAILABLE (default on)
+	* HTTPLIB_REQUIRE_OPENSSL (default off)
+	* HTTPLIB_REQUIRE_ZLIB (default off)
 
-set(CMAKE_CXX_STANDARD 11)
+	After installation with Cmake, a find_package(httplib) is available.
+	This creates a httplib::httplib target (if found).
+	It can be linked like so:
 
-# Include
+	target_link_libraries(your_exe httplib::httplib)
+
+	The following will build & install for later use.
+
+	Linux/macOS:
+
+	mkdir -p build
+	cd build
+	cmake -DCMAKE_BUILD_TYPE=Release ..
+	sudo cmake --build . --target install
+
+	Windows:
+
+	mkdir build
+	cd build
+	cmake ..
+	runas /user:Administrator "cmake --build . --config Release --target install"
+
+	These three variables are available after you run find_package(httplib)
+	* HTTPLIB_HEADER_PATH - this is the full path to the installed header.
+	* HTTPLIB_IS_USING_OPENSSL - a bool for if OpenSSL support is enabled.
+	* HTTPLIB_IS_USING_ZLIB - a bool for if ZLIB support is enabled.
+
+	Want to use precompiled headers (Cmake feature since v3.16)?
+	It's as simple as doing the following (before linking):
+
+	target_precompile_headers(httplib::httplib INTERFACE "${HTTPLIB_HEADER_PATH}")
+]]
+cmake_minimum_required(VERSION 3.7.0 FATAL_ERROR)
+project(httplib LANGUAGES CXX)
+
+# Change as needed to set an OpenSSL minimum version.
+# This is used in the installed Cmake config file.
+set(_HTTPLIB_OPENSSL_MIN_VER "1.1.1")
+
+# Allow for a build to require OpenSSL to pass, instead of just being optional
+option(HTTPLIB_REQUIRE_OPENSSL "Requires OpenSSL to be found & linked, or fails build." OFF)
+option(HTTPLIB_REQUIRE_ZLIB "Requires ZLIB to be found & linked, or fails build." OFF)
+# Allow for a build to casually enable OpenSSL/ZLIB support, but silenty continue if not found.
+# Make these options so their automatic use can be specifically disabled (as needed)
+option(HTTPLIB_USE_OPENSSL_IF_AVAILABLE "Uses OpenSSL (if available) to enable HTTPS support." ON)
+option(HTTPLIB_USE_ZLIB_IF_AVAILABLE "Uses ZLIB (if available) to enable compression support." ON)
+
+# TODO: implement the option of option to correctly split, building, and export with the split.py script.
+# option(HTTPLIB_SPLIT "Uses a Python script to split the header into a header & source file." OFF)
+
+# Threads needed for <thread> on some systems, and for <pthread.h> on Linux
+find_package(Threads REQUIRED)
+if(HTTPLIB_REQUIRE_OPENSSL)
+	find_package(OpenSSL ${_HTTPLIB_OPENSSL_MIN_VER} REQUIRED)
+elseif(HTTPLIB_USE_OPENSSL_IF_AVAILABLE)
+	# Look quietly since it's optional are optional
+	find_package(OpenSSL ${_HTTPLIB_OPENSSL_MIN_VER} QUIET)
+endif()
+if(HTTPLIB_REQUIRE_ZLIB)
+	find_package(ZLIB REQUIRED)
+elseif(HTTPLIB_USE_ZLIB_IF_AVAILABLE)
+	find_package(ZLIB QUIET)
+endif()
+
+# Used for default, common dirs that the end-user can change (if needed)
+# like CMAKE_INSTALL_INCLUDEDIR or CMAKE_INSTALL_DATADIR
 include(GNUInstallDirs)
-include(ExternalProject)
 
 add_library(${PROJECT_NAME} INTERFACE)
-target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_11)
+# Lets you address the target with httplib::httplib
+# Only useful if building in-tree, versus using it from an installation.
+add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
+
+# Might be missing some, but this list is somewhat comprehensive
+target_compile_features(${PROJECT_NAME} INTERFACE
+	cxx_std_11
+	cxx_nullptr
+	cxx_noexcept
+	cxx_lambdas
+	cxx_override
+	cxx_defaulted_functions
+	cxx_attribute_deprecated
+	cxx_auto_type
+	cxx_decltype
+	cxx_deleted_functions
+	cxx_range_for
+	cxx_sizeof_member
+)
 
 target_include_directories(${PROJECT_NAME} INTERFACE
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-    $<INSTALL_INTERFACE:include>)
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
 
-install(TARGETS ${PROJECT_NAME} EXPORT httplibConfig
-    ARCHIVE  DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    LIBRARY  DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    RUNTIME  DESTINATION ${CMAKE_INSTALL_BINDIR})
 
-install(FILES httplib.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME})
+target_link_libraries(${PROJECT_NAME} INTERFACE
+	# Always require threads
+	Threads::Threads
+	# Only link zlib & openssl if they're found
+	$<$<BOOL:${ZLIB_FOUND}>:ZLIB::ZLIB>
+	$<$<BOOL:${OPENSSL_FOUND}>:OpenSSL::SSL OpenSSL::Crypto>
+)
 
-install(EXPORT httplibConfig DESTINATION share/httplib/cmake)
+# Auto-define the optional support if those packages were found
+target_compile_definitions(${PROJECT_NAME} INTERFACE
+	$<$<BOOL:${ZLIB_FOUND}>:CPPHTTPLIB_ZLIB_SUPPORT>
+	$<$<BOOL:${OPENSSL_FOUND}>:CPPHTTPLIB_OPENSSL_SUPPORT>
+)
 
-export(TARGETS ${PROJECT_NAME} FILE httplibConfig.cmake)
+# Cmake's find_package search path is different based on the system
+# See https://cmake.org/cmake/help/latest/command/find_package.html for the list
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+	set(_TARGET_INSTALL_CMAKEDIR "${CMAKE_INSTALL_PREFIX}/cmake/${PROJECT_NAME}")
+else()
+	# On Non-Windows, it should be /usr/lib/cmake/<name>/<name>Config.cmake
+	# NOTE: This may or may not work for macOS...
+	set(_TARGET_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
+endif()
 
-#add_subdirectory(example)
+include(CMakePackageConfigHelpers)
-#add_subdirectory(test)
+
+# Configures the meta-file httplibConfig.cmake.in to replace variables with paths/values/etc.
+configure_package_config_file("${PROJECT_NAME}Config.cmake.in"
+	"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+	INSTALL_DESTINATION "${_TARGET_INSTALL_CMAKEDIR}"
+	# Passes the includedir install path
+	PATH_VARS CMAKE_INSTALL_FULL_INCLUDEDIR
+	# There aren't any components, so don't use the macro
+	NO_CHECK_REQUIRED_COMPONENTS_MACRO
+)
+
+# Creates the export httplibTargets.cmake
+# This is strictly what holds compilation requirements
+# and linkage information (doesn't find deps though).
+install(TARGETS ${PROJECT_NAME}
+	EXPORT httplibTargets
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
+
+install(FILES httplib.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+install(FILES
+		"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+	DESTINATION ${_TARGET_INSTALL_CMAKEDIR}
+)
+
+# NOTE: This path changes depending on if it's on Windows or Linux
+install(EXPORT httplibTargets
+	# Puts the targets into the httplib namespace
+	# So this makes httplib::httplib linkable after doing find_package(httplib)
+	NAMESPACE ${PROJECT_NAME}::
+	DESTINATION ${_TARGET_INSTALL_CMAKEDIR}
+)

README.md

@@ -2,13 +2,14 @@ cpp-httplib
 ===========
 
 [![](https://github.com/yhirose/cpp-httplib/workflows/test/badge.svg)](https://github.com/yhirose/cpp-httplib/actions)
-[![Build Status](https://travis-ci.org/yhirose/cpp-httplib.svg?branch=master)](https://travis-ci.org/yhirose/cpp-httplib)
 [![Bulid Status](https://ci.appveyor.com/api/projects/status/github/yhirose/cpp-httplib?branch=master&svg=true)](https://ci.appveyor.com/project/yhirose/cpp-httplib)
 
 A C++11 single-file header-only cross platform HTTP/HTTPS library.
 
 It's extremely easy to setup. Just include **httplib.h** file in your code!
 
+For Windows users: Please read [this note](https://github.com/yhirose/cpp-httplib#windows).
+
 Server Example
 --------------
 
@@ -30,6 +31,16 @@ int main(void)
     res.set_content(numbers, "text/plain");
   });
 
+  svr.Get("/body-header-param", [](const Request& req, Response& res) {
+    if (req.has_header("Content-Length")) {
+      auto val = req.get_header_value("Content-Length");
+    }
+    if (req.has_param("key")) {
+      auto val = req.get_param_value("key");
+    }
+    res.set_content(req.body, "text/plain");
+  });
+
   svr.Get("/stop", [&](const Request& req, Response& res) {
     svr.stop();
   });
@@ -160,16 +171,17 @@ svr.Post("/content_receiver",
 ### Send content with Content provider
 
 ```cpp
-const uint64_t DATA_CHUNK_SIZE = 4;
+const size_t DATA_CHUNK_SIZE = 4;
 
 svr.Get("/stream", [&](const Request &req, Response &res) {
   auto data = new std::string("abcdefg");
 
   res.set_content_provider(
     data->size(), // Content length
-    [data](uint64_t offset, uint64_t length, DataSink &sink) {
+    [data](size_t offset, size_t length, DataSink &sink) {
       const auto &d = *data;
       sink.write(&d[offset], std::min(length, DATA_CHUNK_SIZE));
+      return true; // return 'false' if you want to cancel the process.
     },
     [data] { delete data; });
 });
@@ -180,11 +192,12 @@ svr.Get("/stream", [&](const Request &req, Response &res) {
 ```cpp
 svr.Get("/chunked", [&](const Request& req, Response& res) {
   res.set_chunked_content_provider(
-    [](uint64_t offset, DataSink &sink) {
+    [](size_t offset, DataSink &sink) {
-       sink.write("123", 3);
+      sink.write("123", 3);
-       sink.write("345", 3);
+      sink.write("345", 3);
-       sink.write("789", 3);
+      sink.write("789", 3);
-       sink.done();
+      sink.done();
+      return true; // return 'false' if you want to cancel the process.
     }
   );
 });
@@ -248,14 +261,13 @@ svr.set_expect_100_continue_handler([](const Request &req, Response &res) {
 Client Example
 --------------
 
-### GET
-
 ```c++
 #include <httplib.h>
 #include <iostream>
 
 int main(void)
 {
+  // IMPORTANT: 1st parameter must be a hostname or an IP adress string.
   httplib::Client cli("localhost", 1234);
 
   auto res = cli.Get("/hi");
@@ -280,7 +292,7 @@ auto res = cli.Get("/hi", headers);
 std::string body;
 
 auto res = cli.Get("/large-data",
-  [&](const char *data, uint64_t data_length) {
+  [&](const char *data, size_t data_length) {
     body.append(data, data_length);
     return true;
   });
@@ -353,6 +365,35 @@ res = cli.Options("/resource/foo");
 ```c++
 cli.set_timeout_sec(5); // timeouts in 5 seconds
 ```
+### Receive content with Content receiver
+
+```cpp
+std::string body;
+auto res = cli.Get(
+  "/stream", Headers(),
+  [&](const Response &response) {
+    EXPECT_EQ(200, response.status);
+    return true; // return 'false' if you want to cancel the request.
+  },
+  [&](const char *data, size_t data_length) {
+    body.append(data, data_length);
+    return true; // return 'false' if you want to cancel the request.
+  });
+```
+
+### Send content with Content provider
+
+```cpp
+std::string body = ...;
+auto res = cli_.Post(
+  "/stream", body.size(),
+  [](size_t offset, size_t length, DataSink &sink) {
+    sink.write(body.data() + offset, length);
+    return true; // return 'false' if you want to cancel the request.
+  },
+  "text/plain");
+```
+
 ### With Progress Callback
 
 ```cpp
@@ -363,7 +404,7 @@ std::shared_ptr<httplib::Response> res =
   cli.Get("/", [](uint64_t len, uint64_t total) {
     printf("%lld / %lld bytes => %d%% complete\n",
       len, total,
-      (int)((len/total)*100));
+      (int)(len*100/total));
     return true; // return 'false' if you want to cancel the request.
   }
 );
@@ -426,6 +467,15 @@ Get(requests, "/get-request2");
 Post(requests, "/post-request1", "text", "text/plain");
 Post(requests, "/post-request2", "text", "text/plain");
 
+const size_t DATA_CHUNK_SIZE = 4;
+std::string data("abcdefg");
+Post(requests, "/post-request-with-content-provider",
+  data.size(),
+  [&](size_t offset, size_t length, DataSink &sink){
+    sink.write(&data[offset], std::min(length, DATA_CHUNK_SIZE));
+  },
+  "text/plain");
+
 std::vector<Response> responses;
 if (cli.send(requests, responses)) {
   for (const auto& res: responses) {
@@ -475,7 +525,7 @@ cli.enable_server_certificate_verification(true);
 Zlib Support
 ------------
 
-'gzip' compression is available with `CPPHTTPLIB_ZLIB_SUPPORT`.
+'gzip' compression is available with `CPPHTTPLIB_ZLIB_SUPPORT`. `libz` should be linked.
 
 The server applies gzip compression to the following MIME type contents:
 
@@ -505,8 +555,27 @@ httplib.h  httplib.cc
 NOTE
 ----
 
+### g++
+
 g++ 4.8 and below cannot build this library since `<regex>` in the versions are [broken](https://stackoverflow.com/questions/12530406/is-gcc-4-8-or-earlier-buggy-about-regular-expressions).
 
+### Windows
+
+Include `httplib.h` before `Windows.h` or include `Windows.h` by defining `WIN32_LEAN_AND_MEAN` beforehand.
+
+```cpp
+#include <httplib.h>
+#include <Windows.h>
+```
+
+```cpp
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <httplib.h>
+```
+
+Note: Cygwin on Windows is not supported.
+
 License
 -------
 
@@ -515,43 +584,4 @@ MIT license (© 2020 Yuji Hirose)
 Special Thanks To
 -----------------
 
-The following folks made great contributions to polish this library to totally another level from a simple toy!
+[These folks](https://github.com/yhirose/cpp-httplib/graphs/contributors) made great contributions to polish this library to totally another level from a simple toy!
-
-  * [Zefz](https://github.com/Zefz)
-  * [PixlRainbow](https://github.com/PixlRainbow)
-  * [sgraham](https://github.com/sgraham)
-  * [mrexodia](https://github.com/mrexodia)
-  * [hyperxor](https://github.com/hyperxor)
-  * [omaralvarez](https://github.com/omaralvarez)
-  * [vvanelslande](https://github.com/vvanelslande)
-  * [underscorediscovery](https://github.com/underscorediscovery)
-  * [sux2mfgj](https://github.com/sux2mfgj)
-  * [matvore](https://github.com/matvore)
-  * [intmain-io](https://github.com/intmain)
-  * [davidgfnet](https://github.com/davidgfnet)
-  * [crtxcr](https://github.com/crtxcr)
-  * [const-volatile](https://github.com/const)
-  * [aguadoenzo](https://github.com/aguadoenzo)
-  * [TheMaverickProgrammer](https://github.com/TheMaverickProgrammer)
-  * [vdudouyt](https://github.com/vdudouyt)
-  * [stupedama](https://github.com/stupedama)
-  * [rockwotj](https://github.com/rockwotj)
-  * [marknelson](https://github.com/marknelson)
-  * [jaspervandeven](https://github.com/jaspervandeven)
-  * [hans-erickson](https://github.com/hans)
-  * [ha11owed](https://github.com/ha11owed)
-  * [gulrak](https://github.com/gulrak)
-  * [dolphineye](https://github.com/dolphineye)
-  * [danielzehe](https://github.com/danielzehe)
-  * [batist73](https://github.com/batist73)
-  * [barryam3](https://github.com/barryam3)
-  * [adikabintang](https://github.com/adikabintang)
-  * [aaronalbers](https://github.com/aaronalbers)
-  * [Whitetigerswt](https://github.com/Whitetigerswt)
-  * [TangHuaiZhe](https://github.com/TangHuaiZhe)
-  * [Sil3ntStorm](https://github.com/Sil3ntStorm)
-  * [MannyClicks](https://github.com/MannyClicks)
-  * [DraTeots](https://github.com/DraTeots)
-  * [BastienDurel](https://github.com/BastienDurel)
-  * [vitalyster](https://github.com/vitalyster)
-  * [trollixx](https://github.com/trollixx)

appveyor.yml

@@ -1,9 +1,14 @@
-version: 1.0.{build}
+image:
-image: Visual Studio 2017
+  - Visual Studio 2019
+
+platform:
+  - x64
+
 build_script:
-- cmd: >-
+  - cmd: >-
-    cd test
+      cd test
+
+      msbuild.exe test.sln /verbosity:minimal /t:Build /p:Configuration=Release;Platform=%PLATFORM%
 
-    msbuild.exe test.sln /verbosity:minimal /t:Build /p:Configuration=Debug;Platform=Win32
 test_script:
-- cmd: Debug\test.exe
+  - cmd: x64\Release\test.exe

example/Makefile

@@ -5,7 +5,7 @@ OPENSSL_DIR = /usr/local/opt/openssl
 OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
 ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz
 
-all: server client hello simplesvr upload redirect sse benchmark
+all: server client hello simplecli simplesvr upload redirect sse benchmark
 
 server : server.cc ../httplib.h Makefile
 	$(CXX) -o server $(CXXFLAGS) server.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT)
@@ -16,6 +16,9 @@ client : client.cc ../httplib.h Makefile
 hello : hello.cc ../httplib.h Makefile
 	$(CXX) -o hello $(CXXFLAGS) hello.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT)
 
+simplecli : simplecli.cc ../httplib.h Makefile
+	$(CXX) -o simplecli $(CXXFLAGS) simplecli.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT)
+
 simplesvr : simplesvr.cc ../httplib.h Makefile
 	$(CXX) -o simplesvr $(CXXFLAGS) simplesvr.cc $(OPENSSL_SUPPORT) $(ZLIB_SUPPORT)
 
@@ -36,4 +39,4 @@ pem:
 	openssl req -new -key key.pem | openssl x509 -days 3650 -req -signkey key.pem > cert.pem
 
 clean:
-	rm server client hello simplesvr upload redirect sse benchmark *.pem
+	rm server client hello simplecli simplesvr upload redirect sse benchmark *.pem

example/hello.cc

@@ -15,5 +15,5 @@ int main(void) {
     res.set_content("Hello World!", "text/plain");
   });
 
-  svr.listen("localhost", 1234);
+  svr.listen("localhost", 8080);
 }

example/simplecli.cc

@@ -0,0 +1,32 @@
+//
+//  simplecli.cc
+//
+//  Copyright (c) 2019 Yuji Hirose. All rights reserved.
+//  MIT License
+//
+
+#include <httplib.h>
+#include <iostream>
+
+#define CA_CERT_FILE "./ca-bundle.crt"
+
+using namespace std;
+
+int main(void) {
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  auto res = httplib::Client2("https://localhost:8080")
+    .set_ca_cert_path(CA_CERT_FILE)
+    // .enable_server_certificate_verification(true)
+    .Get("/hi");
+#else
+  auto res = httplib::Client2("http://localhost:8080").Get("/hi");
+#endif
+
+  if (res) {
+    cout << res->status << endl;
+    cout << res->get_header_value("Content-Type") << endl;
+    cout << res->body << endl;
+  }
+
+  return 0;
+}

example/simplesvr.cc

@@ -127,7 +127,7 @@ int main(int argc, const char **argv) {
     return 1;
   }
 
-  cout << "The server started at port " << port << "...";
+  cout << "The server started at port " << port << "..." << endl;
 
   svr.listen("localhost", port);
 

example/sse.cc

@@ -80,15 +80,19 @@ int main(void) {
   svr.Get("/event1", [&](const Request & /*req*/, Response &res) {
     cout << "connected to event1..." << endl;
     res.set_header("Content-Type", "text/event-stream");
-    res.set_chunked_content_provider(
+    res.set_chunked_content_provider([&](size_t /*offset*/, DataSink &sink) {
-        [&](uint64_t /*offset*/, DataSink &sink) { ed.wait_event(&sink); });
+      ed.wait_event(&sink);
+      return true;
+    });
   });
 
   svr.Get("/event2", [&](const Request & /*req*/, Response &res) {
     cout << "connected to event2..." << endl;
     res.set_header("Content-Type", "text/event-stream");
-    res.set_chunked_content_provider(
+    res.set_chunked_content_provider([&](size_t /*offset*/, DataSink &sink) {
-        [&](uint64_t /*offset*/, DataSink &sink) { ed.wait_event(&sink); });
+      ed.wait_event(&sink);
+      return true;
+    });
   });
 
   thread t([&] {

httplibConfig.cmake.in

@@ -0,0 +1,38 @@
+# Generates a macro to auto-configure everything
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+# We add find_dependency calls here to not make the end-user have to call them.
+find_dependency(Threads REQUIRED)
+if(@HTTPLIB_REQUIRE_OPENSSL@)
+	find_dependency(OpenSSL @_HTTPLIB_OPENSSL_MIN_VER@ REQUIRED)
+	# Lets you check if these options were correctly enabled for your install
+	set(HTTPLIB_IS_USING_OPENSSL TRUE)
+elseif(@HTTPLIB_USE_OPENSSL_IF_AVAILABLE@)
+	# Look quietly since it's optional
+	find_dependency(OpenSSL @_HTTPLIB_OPENSSL_MIN_VER@ QUIET)
+	# Lets you check if these options were correctly enabled for your install
+	set(HTTPLIB_IS_USING_OPENSSL @OPENSSL_FOUND@)
+else()
+	set(HTTPLIB_IS_USING_OPENSSL FALSE)
+endif()
+if(@HTTPLIB_REQUIRE_ZLIB@)
+	find_dependency(ZLIB REQUIRED)
+	# Lets you check if these options were correctly enabled for your install
+	set(HTTPLIB_IS_USING_ZLIB TRUE)
+elseif(@HTTPLIB_USE_ZLIB_IF_AVAILABLE@)
+	# Look quietly since it's optional
+	find_dependency(ZLIB QUIET)
+	# Lets you check if these options were correctly enabled for your install
+	set(HTTPLIB_IS_USING_ZLIB @ZLIB_FOUND@)
+else()
+	set(HTTPLIB_IS_USING_ZLIB FALSE)
+endif()
+
+# Lets the end-user find the header path if needed
+# This is helpful if you're using Cmake's pre-compiled header feature
+set_and_check(HTTPLIB_HEADER_PATH "@PACKAGE_CMAKE_INSTALL_FULL_INCLUDEDIR@/httplib.h")
+
+# Brings in the target library
+include("${CMAKE_CURRENT_LIST_DIR}/httplibTargets.cmake")

test/Makefile

@@ -1,6 +1,6 @@
 
 #CXX = clang++
-CXXFLAGS = -ggdb -O0 -std=c++11 -DGTEST_USE_OWN_TR1_TUPLE -I.. -I. -Wall -Wextra -Wtype-limits
+CXXFLAGS = -ggdb -O0 -std=c++11 -DGTEST_USE_OWN_TR1_TUPLE -I.. -I. -Wall -Wextra -Wtype-limits -Wconversion
 OPENSSL_DIR = /usr/local/opt/openssl
 OPENSSL_SUPPORT = -DCPPHTTPLIB_OPENSSL_SUPPORT -I$(OPENSSL_DIR)/include -L$(OPENSSL_DIR)/lib -lssl -lcrypto
 ZLIB_SUPPORT = -DCPPHTTPLIB_ZLIB_SUPPORT -lz

test/gtest/gtest-all.cc

@@ -38,6 +38,14 @@
 // when it's fused.
 #include "gtest/gtest.h"
 
+#if __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-conversion"
+#elif __GNUC__
+#pragma gcc diagnostic push
+#pragma gcc diagnostic ignored "-Wsign-conversion"
+#endif
+
 // The following lines pull in the real gtest *.cc files.
 // Copyright 2005, Google Inc.
 // All rights reserved.
@@ -9039,7 +9047,6 @@ void HasNewFatalFailureHelper::ReportTestPartResult(
 //
 // Author: wan@google.com (Zhanyong Wan)
 
-
 namespace testing {
 namespace internal {
 
@@ -9116,3 +9123,9 @@ const char* TypedTestCasePState::VerifyRegisteredTestNames(
 
 }  // namespace internal
 }  // namespace testing
+
+#if __clang__
+#pragma clang diagnostic pop
+#elif __GNUC__
+#pragma gcc diagnostic pop
+#endif

test/gtest/gtest.h

@@ -59,6 +59,14 @@
 #pragma warning(disable : 4996)
 #endif
 
+#if __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-compare"
+#elif __GNUC__
+#pragma gcc diagnostic push
+#pragma gcc diagnostic ignored "-Wsign-compare"
+#endif
+
 // Copyright 2005, Google Inc.
 // All rights reserved.
 //
@@ -7311,7 +7319,7 @@ inline const char* SkipComma(const char* str) {
 // the entire string if it contains no comma.
 inline String GetPrefixUntilComma(const char* str) {
   const char* comma = strchr(str, ',');
-  return comma == NULL ? String(str) : String(str, comma - str);
+  return comma == NULL ? String(str) : String(str, static_cast<size_t>(comma - str));
 }
 
 // TypeParameterizedTest<Fixture, TestSel, Types>::Register()
@@ -19553,4 +19561,10 @@ bool StaticAssertTypeEq() {
 #pragma warning( pop )
 #endif
 
+#if __clang__
+#pragma clang diagnostic pop
+#elif __GNUC__
+#pragma gcc diagnostic pop
+#endif
+
 #endif  // GTEST_INCLUDE_GTEST_GTEST_H_

test/test.vcxproj

@@ -28,7 +28,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
@@ -40,7 +40,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -69,13 +69,13 @@
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>C:\Program Files\OpenSSL-Win64\lib\VC;C:\Program Files\OpenSSL-Win64\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(IncludePath)</IncludePath>
     <LibraryPath>$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>C:\Program Files\OpenSSL-Win64\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files\OpenSSL-Win64\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <LinkIncremental>false</LinkIncremental>
@@ -84,14 +84,14 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
-    <IncludePath>C:\Program Files\OpenSSL-Win64\include;$(IncludePath)</IncludePath>
+    <IncludePath>$(IncludePath)</IncludePath>
-    <LibraryPath>C:\Program Files\OpenSSL-Win64\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath>$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <PrecompiledHeader>
       </PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>./;../</AdditionalIncludeDirectories>
@@ -108,7 +108,7 @@
     <ClCompile>
       <PrecompiledHeader>
       </PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>./;../</AdditionalIncludeDirectories>
@@ -118,12 +118,12 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>Ws2_32.lib;libssl.lib;libcrypto.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
@@ -144,7 +144,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
+      <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeader>
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
@@ -160,7 +160,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>Ws2_32.lib;libssl.lib;libcrypto.lib;libssl.lib;libcrypto.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

test/test_proxy.cc

@@ -185,15 +185,17 @@ void DigestAuthTestFromHTTPWatch(Client& cli) {
     for (auto path : paths) {
       auto res = cli.Get(path.c_str());
       ASSERT_TRUE(res != nullptr);
-      EXPECT_EQ(400, res->status);
+      EXPECT_EQ(401, res->status);
     }
 
-    cli.set_digest_auth("bad", "world");
+    // NOTE: Until httpbin.org fixes issue #46, the following test is commented
-    for (auto path : paths) {
+    // out. Plese see https://httpbin.org/digest-auth/auth/hello/world
-      auto res = cli.Get(path.c_str());
+    // cli.set_digest_auth("bad", "world");
-      ASSERT_TRUE(res != nullptr);
+    // for (auto path : paths) {
-      EXPECT_EQ(400, res->status);
+    //   auto res = cli.Get(path.c_str());
-    }
+    //   ASSERT_TRUE(res != nullptr);
+    //   EXPECT_EQ(401, res->status);
+    // }
   }
 }
 
@@ -266,7 +268,7 @@ void KeepAliveTest(Client& cli, bool basic) {
 
 
   {
-    int count = paths.size();
+    int count = static_cast<int>(paths.size());
     while (count--) {
       auto &res = responses[i++];
       EXPECT_EQ("{\n  \"authenticated\": true, \n  \"user\": \"hello\"\n}\n", res.body);