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(build) make using zlib optional, with the caveat that some http and websocket features are not available when zlib is absent

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This commit is contained in:
Benjamin Sergeant 2020-07-31 22:54:57 -07:00
parent 2e3d625c1e
commit 6f0307fb35
13 changed files with 85 additions and 11 deletions
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4
.github/workflows/unittest_uwp.yml vendored
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@ -10,12 +10,10 @@ jobs:
steps:
- uses: actions/checkout@v1
- uses: seanmiddleditch/gha-setup-vsdevenv@master
- run: |
vcpkg install zlib:x64-uwp
- run: |
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=c:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION="10.0" -DCMAKE_CXX_COMPILER=cl.exe -DUSE_TEST=1 ..
cmake -DCMAKE_TOOLCHAIN_FILE=c:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION="10.0" -DCMAKE_CXX_COMPILER=cl.exe -DUSE_TEST=1 -DUSE_ZLIB=0 ..
- run: cmake --build build
#

7
.github/workflows/unittest_windows.yml vendored
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@ -10,10 +10,11 @@ jobs:
steps:
- uses: actions/checkout@v1
- uses: seanmiddleditch/gha-setup-vsdevenv@master
- run: |
vcpkg install zlib:x64-windows
- run: |
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=c:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_CXX_COMPILER=cl.exe -DUSE_WS=1 -DUSE_TEST=1 ..
cmake -DCMAKE_CXX_COMPILER=cl.exe -DUSE_WS=1 -DUSE_TEST=1 -DUSE_ZLIB=0 ..
- run: cmake --build build
#- run: ../build/test/ixwebsocket_unittest.exe
# working-directory: test

14
CMakeLists.txt
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@ -190,10 +190,16 @@ if (USE_TLS)
endif()
endif()
# Use ZLIB_ROOT CMake variable if you need to use your own zlib
find_package(ZLIB REQUIRED)
include_directories(${ZLIB_INCLUDE_DIRS})
target_link_libraries(ixwebsocket ${ZLIB_LIBRARIES})
option(USE_ZLIB "Enable zlib support" TRUE)
if (USE_ZLIB)
# Use ZLIB_ROOT CMake variable if you need to use your own zlib
find_package(ZLIB REQUIRED)
include_directories(${ZLIB_INCLUDE_DIRS})
target_link_libraries(ixwebsocket ${ZLIB_LIBRARIES})
target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_ZLIB)
endif()
if (WIN32)
target_link_libraries(ixwebsocket wsock32 ws2_32 shlwapi)

4
docs/CHANGELOG.md
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@ -1,6 +1,10 @@
# Changelog
All changes to this project will be documented in this file.
## [10.1.2] - 2020-07-31
(build) make using zlib optional, with the caveat that some http and websocket features are not available when zlib is absent
## [10.1.1] - 2020-07-29
(websocket client) onProgressCallback not called for short messages on a websocket (fix #233)

1
docs/build.md
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@ -17,6 +17,7 @@ There is a unittest which can be executed by typing `make test`.
Options for building:
* `-DUSE_ZLIB=1` will enable zlib support, required for http client + server + websocket per message deflate extension
* `-DUSE_TLS=1` will enable TLS support
* `-DUSE_OPEN_SSL=1` will use [openssl](https://www.openssl.org/) for the TLS support (default on Linux and Windows)
* `-DUSE_MBED_TLS=1` will use [mbedlts](https://tls.mbed.org/) for the TLS support

9
ixwebsocket/IXHttpClient.cpp
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@ -16,7 +16,10 @@
#include <random>
#include <sstream>
#include <vector>
#ifdef IXWEBSOCKET_USE_ZLIB
#include <zlib.h>
#endif
namespace ix
{
@ -174,11 +177,13 @@ namespace ix
ss << verb << " " << path << " HTTP/1.1\r\n";
ss << "Host: " << host << "\r\n";
#ifdef IXWEBSOCKET_USE_ZLIB
if (args->compress)
{
ss << "Accept-Encoding: gzip"
<< "\r\n";
}
#endif
// Append extra headers
for (auto&& it : args->extraHeaders)
@ -495,6 +500,7 @@ namespace ix
downloadSize = payload.size();
#ifdef IXWEBSOCKET_USE_ZLIB
// If the content was compressed with gzip, decode it
if (headers["Content-Encoding"] == "gzip")
{
@ -513,6 +519,7 @@ namespace ix
}
payload = decompressedPayload;
}
#endif
return std::make_shared<HttpResponse>(code,
description,
@ -672,6 +679,7 @@ namespace ix
return ss.str();
}
#ifdef IXWEBSOCKET_USE_ZLIB
bool HttpClient::gzipInflate(const std::string& in, std::string& out)
{
z_stream inflateState;
@ -716,6 +724,7 @@ namespace ix
inflateEnd(&inflateState);
return true;
}
#endif
void HttpClient::log(const std::string& msg, HttpRequestArgsPtr args)
{

2
ixwebsocket/IXHttpClient.h
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@ -90,7 +90,9 @@ namespace ix
private:
void log(const std::string& msg, HttpRequestArgsPtr args);
#ifdef IXWEBSOCKET_USE_ZLIB
bool gzipInflate(const std::string& in, std::string& out);
#endif
// Async API background thread runner
void run();

7
ixwebsocket/IXHttpServer.cpp
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@ -13,7 +13,10 @@
#include <fstream>
#include <sstream>
#include <vector>
#ifdef IXWEBSOCKET_USE_ZLIB
#include <zlib.h>
#endif
namespace
{
@ -41,6 +44,7 @@ namespace
return std::make_pair(res.first, std::string(vec.begin(), vec.end()));
}
#ifdef IXWEBSOCKET_USE_ZLIB
std::string gzipCompress(const std::string& str)
{
z_stream zs; // z_stream is zlib's control structure
@ -83,6 +87,7 @@ namespace
return outstring;
}
#endif
} // namespace
namespace ix
@ -168,12 +173,14 @@ namespace ix
std::string content = res.second;
#ifdef IXWEBSOCKET_USE_ZLIB
std::string acceptEncoding = request->headers["Accept-encoding"];
if (acceptEncoding == "*" || acceptEncoding.find("gzip") != std::string::npos)
{
content = gzipCompress(content);
headers["Content-Encoding"] = "gzip";
}
#endif
// Log request
std::stringstream ss;

4
ixwebsocket/IXUserAgent.cpp
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@ -8,7 +8,9 @@
#include "IXWebSocketVersion.h"
#include <sstream>
#ifdef IXWEBSOCKET_USE_ZLIB
#include <zlib.h>
#endif
// Platform name
#if defined(_WIN32)
@ -77,8 +79,10 @@ namespace ix
ss << " nossl";
#endif
#ifdef IXWEBSOCKET_USE_ZLIB
// Zlib version
ss << " zlib " << ZLIB_VERSION;
#endif
return ss.str();
}

24
ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp
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@ -28,21 +28,26 @@ namespace ix
WebSocketPerMessageDeflateCompressor::WebSocketPerMessageDeflateCompressor()
: _compressBufferSize(kBufferSize)
{
#ifdef IXWEBSOCKET_USE_ZLIB
memset(&_deflateState, 0, sizeof(_deflateState));
_deflateState.zalloc = Z_NULL;
_deflateState.zfree = Z_NULL;
_deflateState.opaque = Z_NULL;
#endif
}
WebSocketPerMessageDeflateCompressor::~WebSocketPerMessageDeflateCompressor()
{
#ifdef IXWEBSOCKET_USE_ZLIB
deflateEnd(&_deflateState);
#endif
}
bool WebSocketPerMessageDeflateCompressor::init(uint8_t deflateBits,
bool clientNoContextTakeOver)
{
#ifdef IXWEBSOCKET_USE_ZLIB
int ret = deflateInit2(&_deflateState,
Z_DEFAULT_COMPRESSION,
Z_DEFLATED,
@ -57,6 +62,9 @@ namespace ix
_flush = (clientNoContextTakeOver) ? Z_FULL_FLUSH : Z_SYNC_FLUSH;
return true;
#else
return false;
#endif
}
template<typename T>
@ -96,6 +104,7 @@ namespace ix
template<typename T, typename S>
bool WebSocketPerMessageDeflateCompressor::compressData(const T& in, S& out)
{
#ifdef IXWEBSOCKET_USE_ZLIB
//
// 7.2.1. Compression
//
@ -152,6 +161,9 @@ namespace ix
}
return true;
#else
return false;
#endif
}
//
@ -160,6 +172,7 @@ namespace ix
WebSocketPerMessageDeflateDecompressor::WebSocketPerMessageDeflateDecompressor()
: _compressBufferSize(kBufferSize)
{
#ifdef IXWEBSOCKET_USE_ZLIB
memset(&_inflateState, 0, sizeof(_inflateState));
_inflateState.zalloc = Z_NULL;
@ -167,16 +180,20 @@ namespace ix
_inflateState.opaque = Z_NULL;
_inflateState.avail_in = 0;
_inflateState.next_in = Z_NULL;
#endif
}
WebSocketPerMessageDeflateDecompressor::~WebSocketPerMessageDeflateDecompressor()
{
#ifdef IXWEBSOCKET_USE_ZLIB
inflateEnd(&_inflateState);
#endif
}
bool WebSocketPerMessageDeflateDecompressor::init(uint8_t inflateBits,
bool clientNoContextTakeOver)
{
#ifdef IXWEBSOCKET_USE_ZLIB
int ret = inflateInit2(&_inflateState, -1 * inflateBits);
if (ret != Z_OK) return false;
@ -186,10 +203,14 @@ namespace ix
_flush = (clientNoContextTakeOver) ? Z_FULL_FLUSH : Z_SYNC_FLUSH;
return true;
#else
return false;
#endif
}
bool WebSocketPerMessageDeflateDecompressor::decompress(const std::string& in, std::string& out)
{
#ifdef IXWEBSOCKET_USE_ZLIB
//
// 7.2.2. Decompression
//
@ -226,5 +247,8 @@ namespace ix
} while (_inflateState.avail_out == 0);
return true;
#else
return false;
#endif
}
} // namespace ix

8
ixwebsocket/IXWebSocketPerMessageDeflateCodec.h
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@ -6,7 +6,9 @@
#pragma once
#ifdef IXWEBSOCKET_USE_ZLIB
#include "zlib.h"
#endif
#include <memory>
#include <string>
#include <vector>
@ -34,7 +36,10 @@ namespace ix
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
#ifdef IXWEBSOCKET_USE_ZLIB
z_stream _deflateState;
#endif
};
class WebSocketPerMessageDeflateDecompressor
@ -50,7 +55,10 @@ namespace ix
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
#ifdef IXWEBSOCKET_USE_ZLIB
z_stream _inflateState;
#endif
};
} // namespace ix

10
ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp
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@ -61,6 +61,7 @@ namespace ix
_clientMaxWindowBits = kDefaultClientMaxWindowBits;
_serverMaxWindowBits = kDefaultServerMaxWindowBits;
#ifdef IXWEBSOCKET_USE_ZLIB
// Split by ;
std::string token;
std::stringstream tokenStream(extension);
@ -112,6 +113,7 @@ namespace ix
sanitizeClientMaxWindowBits();
}
}
#endif
}
void WebSocketPerMessageDeflateOptions::sanitizeClientMaxWindowBits()
@ -126,6 +128,7 @@ namespace ix
std::string WebSocketPerMessageDeflateOptions::generateHeader()
{
#ifdef IXWEBSOCKET_USE_ZLIB
std::stringstream ss;
ss << "Sec-WebSocket-Extensions: permessage-deflate";
@ -138,11 +141,18 @@ namespace ix
ss << "\r\n";
return ss.str();
#else
return std::string();
#endif
}
bool WebSocketPerMessageDeflateOptions::enabled() const
{
#ifdef IXWEBSOCKET_USE_ZLIB
return _enabled;
#else
return false;
#endif
}
bool WebSocketPerMessageDeflateOptions::getClientNoContextTakeover() const

2
ixwebsocket/IXWebSocketVersion.h
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@ -6,4 +6,4 @@
#pragma once
#define IX_WEBSOCKET_VERSION "10.1.1"
#define IX_WEBSOCKET_VERSION "10.1.2"