axmol/core/network/HttpClient.h

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/****************************************************************************
Copyright (c) 2012 greathqy
Copyright (c) 2012 cocos2d-x.org
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
Copyright (c) 2021 Bytedance Inc.
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https://axis-project.github.io/
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Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
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#ifndef __CCHTTPCLIENT_H__
#define __CCHTTPCLIENT_H__
#include <thread>
#include <condition_variable>
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#include <deque>
#include "base/CCScheduler.h"
#include "network/HttpRequest.h"
#include "network/HttpResponse.h"
#include "network/HttpCookie.h"
#include "network/Uri.h"
#include "yasio/yasio_fwd.hpp"
#include "base/ConcurrentDeque.h"
/**
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* @addtogroup network
* @{
*/
NS_AX_BEGIN
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namespace network
{
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/** Singleton that handles asynchronous http requests.
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*
* Once the request completed, a callback will issued in main thread when it provided during make request.
*
* @lua NA
*/
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class AX_DLL HttpClient
{
public:
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/**
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* How many requests could be perform concurrency.
*/
static const int MAX_CHANNELS = 21;
static const int MAX_REDIRECT_COUNT = 3;
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/**
* Get instance of HttpClient.
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*
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* @return the instance of HttpClient.
*/
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static HttpClient* getInstance();
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/**
* Release the instance of HttpClient.
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*/
static void destroyInstance();
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/**
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* Enable cookie support.
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*
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* @param [nullable] cookieFile the filepath of cookie file.
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*/
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void enableCookies(const char* cookieFile);
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/**
* Get the cookie filename
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*
* @return the cookie filename
*/
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std::string_view getCookieFilename();
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/**
* Set root certificate path for SSL verification.
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*
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* @param caFile a full path of root certificate.if it is empty, SSL verification is disabled.
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*/
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void setSSLVerification(std::string_view caFile);
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/**
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* Get the ssl CA filename
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*
* @return the ssl CA filename
*/
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std::string_view getSSLVerification();
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/**
* Send http request concurrently, non-blocking
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*
* @param request a HttpRequest object, which includes url, response callback etc.
please make sure request->_requestData is clear before calling "send" here.
* @notes for post data
* a. By default will fill Content-Type: application/x-www-form-urlencoded;charset=UTF-8
* b. You can specific content-type at custom header, such as:
* std::vector<std::string> headers = {"Content-Type: application/json;charset=UTF-8"};
* request->setHeaders(headers);
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* c. other content type, please see:
* https://stackoverflow.com/questions/23714383/what-are-all-the-possible-values-for-http-content-type-header
*/
bool send(HttpRequest* request);
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/**
* Send http request sync, will block caller thread until request finished.
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* @remark Caller must call release manually when the response never been used.
*/
HttpResponse* sendSync(HttpRequest* request);
/**
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* Set the timeout value for connecting.
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*
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* @param value the timeout value for connecting.
*/
void setTimeoutForConnect(int value);
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/**
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* Get the timeout value for connecting.
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*
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* @return int the timeout value for connecting.
*/
int getTimeoutForConnect();
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/**
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* Set the timeout value for reading.
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*
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* @param value the timeout value for reading.
*/
void setTimeoutForRead(int value);
/**
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* Get the timeout value for reading.
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*
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* @return int the timeout value for reading.
*/
int getTimeoutForRead();
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HttpCookie* getCookie() const { return _cookie; }
std::recursive_mutex& getCookieFileMutex() { return _cookieFileMutex; }
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std::recursive_mutex& getSSLCaFileMutex() { return _sslCaFileMutex; }
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typedef std::function<bool(HttpResponse*)> ClearResponsePredicate;
/**
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* Clears the pending & finished http response
*/
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void clearResponseQueue();
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/**
* Clears the pending http response
*/
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void clearPendingResponseQueue();
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/**
* Clears the finished http response
*/
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void clearFinishedResponseQueue();
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/**
Sets a predicate function that is going to be called to determine if we proceed
* each of the pending requests
*
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* @param cb predicate function that will be called
*/
void setClearResponsePredicate(ClearResponsePredicate predicate) { _clearResponsePredicate = predicate; }
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void setDispatchOnWorkThread(bool bVal);
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bool isDispatchOnWorkThread() const { return _dispatchOnWorkThread; }
/*
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* When the device network status chagned, you should invoke this function
*/
void handleNetworkStatusChanged();
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/*
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* Sets custom dns server list:
* format: "xxx.xxx.xxx.xxx[:port],xxx.xxx.xxx.xxx[:port]
*/
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void setNameServers(std::string_view servers);
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yasio::io_service* getInternalService();
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private:
HttpClient();
virtual ~HttpClient();
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void processResponse(HttpResponse* response, std::string_view url);
int tryTakeAvailChannel();
void handleNetworkEvent(yasio::io_event* event);
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void handleNetworkEOF(HttpResponse* response, yasio::io_channel* channel, int internalErrorCode);
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void dispatchResponseCallbacks();
void finishResponse(HttpResponse* response);
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void invokeResposneCallbackAndRelease(HttpResponse* response);
private:
bool _isInited;
yasio::io_service* _service;
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bool _dispatchOnWorkThread;
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int _timeoutForConnect;
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std::recursive_mutex _timeoutForConnectMutex;
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int _timeoutForRead;
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std::recursive_mutex _timeoutForReadMutex;
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Scheduler* _scheduler;
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std::recursive_mutex _schedulerMutex;
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ConcurrentDeque<HttpResponse*> _pendingResponseQueue;
ConcurrentDeque<HttpResponse*> _finishedResponseQueue;
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ConcurrentDeque<int> _availChannelQueue;
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std::string _cookieFilename;
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std::recursive_mutex _cookieFileMutex;
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std::string _sslCaFilename;
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std::recursive_mutex _sslCaFileMutex;
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HttpCookie* _cookie;
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ClearResponsePredicate _clearResponsePredicate;
};
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} // namespace network
NS_AX_END
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// end group
/// @}
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#endif //__CCHTTPCLIENT_H__