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Add support for brotli compression (#406)

This commit is contained in:
An Tao 2020-04-04 18:15:15 +08:00 committed by GitHub
parent 2fb0f845f6
commit c43ba9e514
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20 changed files with 460 additions and 15 deletions
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1
.travis.yml
View File

@ -28,6 +28,7 @@ addons:
- build-essential
- cmake
- boost1.67
- libbrotli-dev
homebrew:
packages:
- jsoncpp

8
CMakeLists.txt
View File

@ -109,6 +109,13 @@ if(NOT WIN32)
endif()
endif(NOT WIN32)
find_package(Brotli)
if(Brotli_FOUND)
message(STATUS "Brotli found")
add_definitions(-DUSE_BROTLI)
target_link_libraries(${PROJECT_NAME} PRIVATE Brotli_lib)
endif(Brotli_FOUND)
set(DROGON_SOURCES
lib/src/AOPAdvice.cc
lib/src/CacheFile.cc
@ -430,6 +437,7 @@ install(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/FindSQLite3.cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/FindMySQL.cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/Findpg.cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/FindBrotli.cmake"
DESTINATION "${INSTALL_DROGON_CMAKE_DIR}"
COMPONENT dev)

2
README.md
View File

@ -25,7 +25,7 @@ Drogon is a cross-platform framework, It supports Linux, Mac OS, FreeBSD and Win
* Support WebSocket (server side and client side);
* Support JSON format request and response, very friendly to the Restful API application development;
* Support file download and upload;
* Support gzip compression transmission;
* Support gzip, brotli compression transmission;
* Support pipelining;
* Provide a lightweight command line tool, drogon_ctl, to simplify the creation of various classes in Drogon and the generation of view code;
* Support non-blocking I/O based asynchronously reading and writing database (PostgreSQL and MySQL(MariaDB) database);

154
README.zh-CN.md
View File

@ -24,7 +24,7 @@ Drogon是一个跨平台框架，它支持Linux，也支持Mac OS、FreeBSD，
* 支持websocket(server端和client端);
* 支持Json格式请求和应答, 对Restful API应用开发非常友好;
* 支持文件下载和上传,支持sendfile系统调用；
* 支持gzip压缩传输；
* 支持gzip/brotli压缩传输；
* 支持pipelining；
* 提供一个轻量的命令行工具drogon_ctl，帮助简化各种类的创建和视图代码的生成过程；
* 基于非阻塞IO实现的异步数据库读写，目前支持PostgreSQL和MySQL(MariaDB)数据库；
@ -34,4 +34,154 @@ Drogon是一个跨平台框架，它支持Linux，也支持Mac OS、FreeBSD，
* 支持插件，可通过配置文件在加载期动态拆装；
* 支持内建插入点的AOP
### 更多详情请浏览 [wiki](https://github.com/an-tao/drogon/wiki/01-概述)
## 一个非常简单的例子
不像大多数C++框架那样，drogon的主程序可以保持非常简单。 Drogon使用了一些小技巧是主程序和控制器解耦合. 控制器的路径路由设置可以在控制器类定义中或者配置文件中完成.
下面是一个典型的主程序的样子:
```c++
#include <drogon/drogon.h>
using namespace drogon;
int main()
{
app().setLogPath("./")
.setLogLevel(trantor::Logger::kWarn)
.addListener("0.0.0.0", 80)
.setThreadNum(16)
.enableRunAsDaemon()
.run();
}
```
如果使用配置文件，可以进一步简化成如下的样子:
```c++
#include <drogon/drogon.h>
using namespace drogon;
int main()
{
app().loadConfigFile("./config.json").run();
}
```
当然，Drogon也提供了一些接口，使用户可以在main()函数中直接添加控制器逻辑，比如，用户可以注册一个lambda处理器到drogon框架中，如下所示：
```c++
app.registerHandler("/test?username={name}",
[](const HttpRequestPtr& req,
std::function<void (const HttpResponsePtr &)> &&callback,
const std::string &name)
{
Json::Value json;
json["result"]="ok";
json["message"]=std::string("hello,")+name;
auto resp=HttpResponse::newHttpJsonResponse(json);
callback(resp);
},
{Get,"LoginFilter"});
```
这看起来是很方便，但是这并不适用于复杂的应用，试想假如有数十个或者数百个处理函数要注册进框架，main()函数将膨胀到不可读的程度。显然，让每个包含处理函数的类在自己的定义中完成注册是更好的选择。所以，除非你的应用逻辑非常简单，我们不推荐使用上述接口，更好的实践是，我们可以创建一个HttpSimpleController对象，如下：
```c++
/// The TestCtrl.h file
#pragma once
#include <drogon/HttpSimpleController.h>
using namespace drogon;
class TestCtrl:public drogon::HttpSimpleController<TestCtrl>
{
public:
virtual void asyncHandleHttpRequest(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback) override;
PATH_LIST_BEGIN
PATH_ADD("/test",Get);
PATH_LIST_END
};
/// The TestCtrl.cc file
#include "TestCtrl.h"
void TestCtrl::asyncHandleHttpRequest(const HttpRequestPtr& req,
std::function<void (const HttpResponsePtr &)> &&callback)
{
//write your application logic here
auto resp = HttpResponse::newHttpResponse();
resp->setBody("<p>Hello, world!</p>");
resp->setExpiredTime(0);
callback(resp);
}
```
**上面程序的大部分代码都可以由`drogon_ctl`命令创建**（这个命令是`drogon_ctl create controller TestCtr`）。用户所需做的就是添加自己的业务逻辑。在这个例子中，当客户端访问URL`http://ip/test`时，控制器简单的返回了一个`Hello, world!`页面。
对于JSON格式的响应，我们可以像下面这样创建控制器：
```c++
/// The header file
#pragma once
#include <drogon/HttpSimpleController.h>
using namespace drogon;
class JsonCtrl : public drogon::HttpSimpleController<JsonCtrl>
{
public:
virtual void asyncHandleHttpRequest(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback) override;
PATH_LIST_BEGIN
//list path definitions here;
PATH_ADD("/json", Get);
PATH_LIST_END
};
/// The source file
#include "JsonCtrl.h"
void JsonCtrl::asyncHandleHttpRequest(const HttpRequestPtr &req,
std::function<void(const HttpResponsePtr &)> &&callback)
{
Json::Value ret;
ret["message"] = "Hello, World!";
auto resp = HttpResponse::newHttpJsonResponse(ret);
callback(resp);
}
```
让我们更进一步，通过HttpController类创建一个RESTful API的例子，如下所示（忽略了实现文件）：
```c++
/// The header file
#pragma once
#include <drogon/HttpController.h>
using namespace drogon;
namespace api
{
namespace v1
{
class User : public drogon::HttpController<User>
{
public:
METHOD_LIST_BEGIN
//use METHOD_ADD to add your custom processing function here;
METHOD_ADD(User::getInfo, "/{id}", Get); //path is /api/v1/User/{arg1}
METHOD_ADD(User::getDetailInfo, "/{id}/detailinfo", Get); //path is /api/v1/User/{arg1}/detailinfo
METHOD_ADD(User::newUser, "/{name}", Post); //path is /api/v1/User/{arg1}
METHOD_LIST_END
//your declaration of processing function maybe like this:
void getInfo(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, int userId) const;
void getDetailInfo(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, int userId) const;
void newUser(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, std::string &&userName);
public:
User()
{
LOG_DEBUG << "User constructor!";
}
};
} // namespace v1
} // namespace api
```
如你所见，通过`HttpController`类，用户可以同时映射路径和路径参数，这对RESTful API应用来说非常方便。
另外，你可以发现前面所有的处理函数接口都是异步的，处理器的响应是通过回调对象返回的。这种设计是出于对高性能的考虑，因为在异步模式下，可以使用少量的线程（比如和处理器核心数相等的线程）处理大量的并发请求。
After compiling all of the above source files, we get a very simple web application. This is a good start. **for more information, please visit the [wiki](https://github.com/an-tao/drogon/wiki/01-Overview) or the [doxiz](https://doxiz.com/drogon/master/overview/)**
编译上述的所有源文件后，我们得到了一个非常简单的web应用程序，这是一个不错的开始。**请访问[wiki](https://github.com/an-tao/drogon/wiki/01-Overview)或者[doxiz](https://doxiz.com/drogon/master/overview/)以获取更多的信息**

3
cmake/templates/DrogonConfig.cmake.in
View File

@ -30,6 +30,9 @@ endif()
if(@Boost_FOUND@)
find_dependency(Boost)
endif()
if(@Brotli_FOUND@)
find_dependency(Brotli)
endif()
# Our library dependencies (contains definitions for IMPORTED targets)

50
cmake_modules/FindBrotli.cmake Normal file
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@ -0,0 +1,50 @@
# ***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which you should
# have received as part of this distribution. The terms are also available at
# https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is furnished
# to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# ##############################################################################
include(FindPackageHandleStandardArgs)
find_path(BROTLI_INCLUDE_DIR "brotli/decode.h")
find_library(BROTLICOMMON_LIBRARY NAMES brotlicommon)
find_library(BROTLIDEC_LIBRARY NAMES brotlidec)
find_library(BROTLIENC_LIBRARY NAMES brotlienc)
find_package_handle_standard_args(Brotli
REQUIRED_VARS
BROTLIDEC_LIBRARY
BROTLIENC_LIBRARY
BROTLICOMMON_LIBRARY
BROTLI_INCLUDE_DIR
FAIL_MESSAGE
"Could NOT find BROTLI")
set(BROTLI_INCLUDE_DIRS ${BROTLI_INCLUDE_DIR})
set(BROTLI_LIBRARIES ${BROTLICOMMON_LIBRARY} ${BROTLIDEC_LIBRARY}
${BROTLIENC_LIBRARY})
if(Brotli_FOUND)
add_library(Brotli_lib INTERFACE IMPORTED)
set_target_properties(Brotli_lib
PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
"${BROTLI_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES
"${BROTLI_LIBRARIES}")
endif(Brotli_FOUND)

2
config.example.json
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@ -154,6 +154,8 @@
"use_sendfile": true,
//use_gzip: True by default, use gzip to compress the response body's content;
"use_gzip": true,
//use_brotli: False by default, use brotli to compress the response body's content;
"use_brotli": false,
//static_files_cache_time: 5 (seconds) by default, the time in which the static file response is cached,
//0 means cache forever, the negative value means no cache
"static_files_cache_time": 5,

2
drogon_ctl/templates/config.csp
View File

@ -154,6 +154,8 @@
"use_sendfile": true,
//use_gzip: True by default, use gzip to compress the response body's content;
"use_gzip": true,
//use_brotli: False by default, use brotli to compress the response body's content;
"use_brotli": false,
//static_files_cache_time: 5 (seconds) by default, the time in which the static file response is cached,
//0 means cache forever, the negative value means no cache
"static_files_cache_time": 5,

28
examples/simple_example_test/main.cc
View File

@ -163,6 +163,34 @@ void doTest(const HttpClientPtr &client,
exit(1);
}
});
/// Test brotli
#ifdef USE_BROTLI
req = HttpRequest::newHttpRequest();
req->setMethod(drogon::Get);
req->addHeader("accept-encoding", "br");
req->setPath("/api/v1/apitest/get/111");
client->sendRequest(req,
[=](ReqResult result, const HttpResponsePtr &resp) {
if (result == ReqResult::Ok)
{
if (resp->getBody().length() == 4994)
{
outputGood(req, isHttps);
}
else
{
LOG_DEBUG << resp->getBody().length();
LOG_ERROR << "Error!";
exit(1);
}
}
else
{
LOG_ERROR << "Error!";
exit(1);
}
});
#endif
/// Post json
Json::Value json;
json["request"] = "json";

17
lib/inc/drogon/HttpAppFramework.h
View File

@ -822,6 +822,23 @@ class HttpAppFramework : public trantor::NonCopyable
/// Return true if gzip is enabled.
virtual bool isGzipEnabled() const = 0;
/// Enable brotli compression.
/**
* @param useBrotli if the parameter is true, use brotli to compress the
* response body's content;
* The default value is true.
*
* @note
* This operation can be performed by an option in the configuration file.
* After brotli is enabled, brotli is used under the following conditions:
* 1. The content type of response is not a binary type.
* 2. The content length is bigger than 1024 bytes.
*/
virtual HttpAppFramework &enableBrotli(bool useBrotli) = 0;
/// Return true if brotli is enabled.
virtual bool isBrotliEnabled() const = 0;
/// Set the time in which the static file response is cached in memory.
/**
* @param cacheTime in seconds. 0 means always cached, negative means no

14
lib/inc/drogon/utils/Utilities.h
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@ -82,14 +82,20 @@ std::string urlEncodeComponent(const std::string &);
/// Commpress or decompress data using gzip lib.
/**
* @param data Data before compressing or after decompressing
* @param ndata Data length before compressing or after decompressing
* @param zdata Data after compressing or before decompressing
* @param nzdata Data length after compressing or before decompressing
* @param data the input data
* @param ndata the input data length
*/
std::string gzipCompress(const char *data, const size_t ndata);
std::string gzipDecompress(const char *data, const size_t ndata);
/// Commpress or decompress data using brotli lib.
/**
* @param data the input data
* @param ndata the input data length
*/
std::string brotliCompress(const char *data, const size_t ndata);
std::string brotliDecompress(const char *data, const size_t ndata);
/// Get the http full date string
/**
* rfc2616-3.3.1

2
lib/src/ConfigLoader.cc
View File

@ -354,6 +354,8 @@ static void loadApp(const Json::Value &app)
drogon::app().enableSendfile(useSendfile);
auto useGzip = app.get("use_gzip", true).asBool();
drogon::app().enableGzip(useGzip);
auto useBr = app.get("use_brotli", false).asBool();
drogon::app().enableBrotli(useBr);
auto staticFilesCacheTime = app.get("static_files_cache_time", 5).asInt();
drogon::app().setStaticFilesCacheTime(staticFilesCacheTime);
loadControllers(app["simple_controllers_map"]);

10
lib/src/HttpAppFrameworkImpl.h
View File

@ -254,6 +254,15 @@ class HttpAppFrameworkImpl : public HttpAppFramework
{
return useGzip_;
}
virtual HttpAppFramework &enableBrotli(bool useBrotli) override
{
useBrotli_ = useBrotli;
return *this;
}
virtual bool isBrotliEnabled() const override
{
return useBrotli_;
}
virtual HttpAppFramework &setStaticFilesCacheTime(int cacheTime) override;
virtual int staticFilesCacheTime() const override;
virtual HttpAppFramework &setIdleConnectionTimeout(size_t timeout) override
@ -496,6 +505,7 @@ class HttpAppFrameworkImpl : public HttpAppFramework
size_t pipeliningRequestsNumber_{0};
bool useSendfile_{true};
bool useGzip_{true};
bool useBrotli_{false};
size_t clientMaxBodySize_{1024 * 1024};
size_t clientMaxMemoryBodySize_{64 * 1024};
size_t clientMaxWebSocketMessageSize_{128 * 1024};

9
lib/src/HttpClientImpl.cc
View File

@ -400,10 +400,17 @@ void HttpClientImpl::onRecvMessage(const trantor::TcpConnectionPtr &connPtr,
responseParser->reset();
assert(!pipeliningCallbacks_.empty());
auto &type = resp->getHeaderBy("content-type");
if (resp->getHeaderBy("content-encoding") == "gzip")
auto &coding = resp->getHeaderBy("content-encoding");
if (coding == "gzip")
{
resp->gunzip();
}
#ifdef USE_BROTLI
else if (coding == "br")
{
resp->brDecompress();
}
#endif
if (type.find("application/json") != std::string::npos)
{
resp->parseJson();

13
lib/src/HttpResponseImpl.h
View File

@ -310,6 +310,19 @@ class HttpResponseImpl : public HttpResponse
std::make_shared<HttpMessageStringBody>(move(gunzipBody));
}
}
#ifdef USE_BROTLI
void brDecompress()
{
if (bodyPtr_)
{
auto gunzipBody =
utils::brotliDecompress(bodyPtr_->data(), bodyPtr_->length());
removeHeader("content-encoding");
bodyPtr_ =
std::make_shared<HttpMessageStringBody>(move(gunzipBody));
}
}
#endif
~HttpResponseImpl();
protected:

44
lib/src/HttpServer.cc
View File

@ -36,13 +36,43 @@ static HttpResponsePtr getCompressedResponse(const HttpRequestImplPtr &req,
LOG_TRACE << "Use gzip to compress the body";
auto &sendfileName =
static_cast<HttpResponseImpl *>(response.get())->sendfileName();
if (app().isGzipEnabled() && sendfileName.empty() &&
req->getHeaderBy("accept-encoding").find("gzip") != std::string::npos &&
static_cast<HttpResponseImpl *>(response.get())
->getHeaderBy("content-encoding")
.empty() &&
response->getContentType() < CT_APPLICATION_OCTET_STREAM &&
response->getBody().length() > 1024 && !isHeadMethod)
if (!sendfileName.empty() ||
response->getContentType() >= CT_APPLICATION_OCTET_STREAM ||
response->getBody().length() < 1024 || isHeadMethod ||
!(static_cast<HttpResponseImpl *>(response.get())
->getHeaderBy("content-encoding")
.empty()))
{
return response;
}
#ifdef USE_BROTLI
if (app().isBrotliEnabled() &&
req->getHeaderBy("accept-encoding").find("br") != std::string::npos)
{
auto newResp = response;
auto strCompress = utils::brotliCompress(response->getBody().data(),
response->getBody().length());
if (!strCompress.empty())
{
if (response->expiredTime() >= 0)
{
// cached response,we need to make a clone
newResp = std::make_shared<HttpResponseImpl>(
*static_cast<HttpResponseImpl *>(response.get()));
newResp->setExpiredTime(-1);
}
newResp->setBody(std::move(strCompress));
newResp->addHeader("Content-Encoding", "br");
}
else
{
LOG_ERROR << "brotli got 0 length result";
}
return newResp;
}
#endif
if (app().isGzipEnabled() &&
req->getHeaderBy("accept-encoding").find("gzip") != std::string::npos)
{
auto newResp = response;
auto strCompress = utils::gzipCompress(response->getBody().data(),

77
lib/src/Utilities.cc
View File

@ -14,6 +14,10 @@
#include <drogon/utils/Utilities.h>
#include <trantor/utils/Logger.h>
#ifdef USE_BROTLI
#include <brotli/decode.h>
#include <brotli/encode.h>
#endif
#ifdef _WIN32
#include <Rpc.h>
#include <direct.h>
@ -998,6 +1002,79 @@ int createPath(const std::string &path)
}
return 0;
}
#ifdef USE_BROTLI
std::string brotliCompress(const char *data, const size_t ndata)
{
std::string ret;
if (ndata == 0)
return ret;
ret.resize(BrotliEncoderMaxCompressedSize(ndata));
size_t encodedSize{ret.size()};
auto r = BrotliEncoderCompress(5,
BROTLI_DEFAULT_WINDOW,
BROTLI_DEFAULT_MODE,
ndata,
(const uint8_t *)(data),
&encodedSize,
(uint8_t *)(ret.data()));
if (r == BROTLI_FALSE)
ret.resize(0);
else
ret.resize(encodedSize);
return ret;
}
std::string brotliDecompress(const char *data, const size_t ndata)
{
if (ndata == 0)
return std::string(data, ndata);
size_t availableIn = ndata;
auto nextIn = (const uint8_t *)(data);
auto decompressed = std::string(availableIn * 3, 0);
size_t availableOut = decompressed.size();
auto nextOut = (uint8_t *)(decompressed.data());
size_t totalOut{0};
bool done = false;
auto s = BrotliDecoderCreateInstance(nullptr, nullptr, nullptr);
while (!done)
{
auto result = BrotliDecoderDecompressStream(
s, &availableIn, &nextIn, &availableOut, &nextOut, &totalOut);
if (result == BROTLI_DECODER_RESULT_SUCCESS)
{
decompressed.resize(totalOut);
done = true;
}
else if (result == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT)
{
assert(totalOut == decompressed.size());
decompressed.resize(totalOut * 2);
nextOut = (uint8_t *)(decompressed.data() + totalOut);
availableOut = totalOut;
}
else
{
decompressed.resize(0);
done = true;
}
}
BrotliDecoderDestroyInstance(s);
return decompressed;
}
#else
std::string brotliCompress(const char *data, const size_t ndata)
{
LOG_ERROR << "If you do not have the brotli package installed, you cannot "
"use brotliCompress()";
abort();
}
std::string brotliDecompress(const char *data, const size_t ndata)
{
LOG_ERROR << "If you do not have the brotli package installed, you cannot "
"use brotliDecompress()";
abort();
}
#endif
} // namespace utils
} // namespace drogon

1
test.sh
View File

@ -33,6 +33,7 @@ fi
sed -i -e "s/\"run_as_daemon.*$/\"run_as_daemon\": true\,/" config.example.json
sed -i -e "s/\"relaunch_on_error.*$/\"relaunch_on_error\": true\,/" config.example.json
sed -i -e "s/\"threads_num.*$/\"threads_num\": 0\,/" config.example.json
sed -i -e "s/\"use_brotli.*$/\"use_brotli\": true\,/" config.example.json
if [ ! -f "webapp" ]; then
echo "Build failed"

32
unittest/BrotliUnittest.cpp Normal file
View File

@ -0,0 +1,32 @@
#include <drogon/utils/Utilities.h>
#include <gtest/gtest.h>
#include <string>
#include <iostream>
using namespace drogon::utils;
TEST(BrotliTest, shortText)
{
std::string source{"123中文顶替要枯械"};
auto compressed = brotliCompress(source.data(), source.length());
auto decompressed =
brotliDecompress(compressed.data(), compressed.length());
EXPECT_EQ(source, decompressed);
}
TEST(BrotliTest, longText)
{
std::string source;
for (size_t i = 0; i < 100000; i++)
{
source.append(std::to_string(i));
}
auto compressed = brotliCompress(source.data(), source.length());
auto decompressed =
brotliDecompress(compressed.data(), compressed.length());
EXPECT_EQ(source, decompressed);
}
int main(int argc, char **argv)
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}

6
unittest/CMakeLists.txt
View File

@ -4,6 +4,9 @@ add_executable(gzip_unittest GzipUnittest.cpp)
add_executable(md5_unittest MD5Unittest.cpp ../lib/src/ssl_funcs/Md5.cc)
add_executable(sha1_unittest SHA1Unittest.cpp ../lib/src/ssl_funcs/Sha1.cc)
add_executable(ostringstream_unittest OStringStreamUnitttest.cpp)
if(Brotli_FOUND)
add_executable(brotli_unittest BrotliUnittest.cpp)
endif()
set(UNITTEST_TARGETS
drogon_msgbuffer_unittest
@ -12,6 +15,9 @@ set(UNITTEST_TARGETS
md5_unittest
sha1_unittest
ostringstream_unittest)
if(Brotli_FOUND)
set(UNITTEST_TARGETS ${UNITTEST_TARGETS} brotli_unittest)
endif()
set_property(TARGET ${UNITTEST_TARGETS}
PROPERTY CXX_STANDARD ${DROGON_CXX_STANDARD})