345 lines
11 KiB
C++
345 lines
11 KiB
C++
// Copyright (c) 2016-2018 Kiwano - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include <chrono>
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#include <thread>
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#include <kiwano/core/Logger.h>
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#include <kiwano/platform/Application.h>
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#include <kiwano-network/HttpRequest.h>
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#include <kiwano-network/HttpResponse.hpp>
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#include <kiwano-network/HttpModule.h>
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#include <3rd-party/curl/curl.h> // CURL
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namespace
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{
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using namespace kiwano;
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using namespace kiwano::network;
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uint32_t write_data(void* buffer, uint32_t size, uint32_t nmemb, void* userp)
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{
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String* recv_buffer = (String*)userp;
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uint32_t total = size * nmemb;
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// add data to the end of recv_buffer
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// write data maybe called more than once in a single request
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recv_buffer->append((char*)buffer, total);
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return total;
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}
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class Curl
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{
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public:
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Curl()
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: curl_(curl_easy_init())
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, curl_headers_(nullptr)
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{
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}
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~Curl()
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{
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if (curl_)
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{
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curl_easy_cleanup(curl_);
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curl_ = nullptr;
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}
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if (curl_headers_)
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{
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curl_slist_free_all(curl_headers_);
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curl_headers_ = nullptr;
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}
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}
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bool Init(HttpModule* client, const Vector<String>& headers, const String& url, String* response_data,
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String* response_header, char* error_buffer)
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{
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if (!SetOption(CURLOPT_ERRORBUFFER, error_buffer))
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return false;
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if (!SetOption(CURLOPT_TIMEOUT, client->GetTimeoutForRead()))
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return false;
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if (!SetOption(CURLOPT_CONNECTTIMEOUT, client->GetTimeoutForConnect()))
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return false;
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const String& ssl_ca_file = client->GetSSLVerification();
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if (ssl_ca_file.empty())
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{
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if (!SetOption(CURLOPT_SSL_VERIFYPEER, 0L))
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return false;
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if (!SetOption(CURLOPT_SSL_VERIFYHOST, 0L))
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return false;
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}
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else
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{
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if (!SetOption(CURLOPT_SSL_VERIFYPEER, 1L))
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return false;
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if (!SetOption(CURLOPT_SSL_VERIFYHOST, 2L))
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return false;
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if (!SetOption(CURLOPT_CAINFO, ssl_ca_file.c_str()))
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return false;
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}
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if (!SetOption(CURLOPT_NOSIGNAL, 1L))
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return false;
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if (!SetOption(CURLOPT_ACCEPT_ENCODING, ""))
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return false;
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// set request headers
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if (!headers.empty())
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{
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for (const auto& header : headers)
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{
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curl_headers_ = curl_slist_append(curl_headers_, header.c_str());
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}
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if (!SetOption(CURLOPT_HTTPHEADER, curl_headers_))
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return false;
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}
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return SetOption(CURLOPT_URL, url.c_str()) && SetOption(CURLOPT_WRITEFUNCTION, write_data)
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&& SetOption(CURLOPT_WRITEDATA, response_data) && SetOption(CURLOPT_HEADERFUNCTION, write_data)
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&& SetOption(CURLOPT_HEADERDATA, response_header);
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}
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bool Perform(long* response_code)
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{
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if (CURLE_OK != curl_easy_perform(curl_))
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return false;
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CURLcode code = curl_easy_getinfo(curl_, CURLINFO_RESPONSE_CODE, response_code);
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return code == CURLE_OK && (*response_code >= 200 && *response_code < 300);
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}
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template <typename... _Args>
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bool SetOption(CURLoption option, _Args&&... args)
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{
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return CURLE_OK == curl_easy_setopt(curl_, option, std::forward<_Args>(args)...);
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}
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public:
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static inline bool GetRequest(HttpModule* client, const Vector<String>& headers, const String& url,
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long* response_code, String* response_data, String* response_header,
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char* error_buffer)
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{
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Curl curl;
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return curl.Init(client, headers, url, response_data, response_header, error_buffer)
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&& curl.SetOption(CURLOPT_FOLLOWLOCATION, true) && curl.Perform(response_code);
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}
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static inline bool PostRequest(HttpModule* client, const Vector<String>& headers, const String& url,
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const String& request_data, long* response_code, String* response_data,
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String* response_header, char* error_buffer)
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{
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Curl curl;
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return curl.Init(client, headers, url, response_data, response_header, error_buffer)
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&& curl.SetOption(CURLOPT_POST, 1) && curl.SetOption(CURLOPT_POSTFIELDS, request_data.c_str())
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&& curl.SetOption(CURLOPT_POSTFIELDSIZE, request_data.size()) && curl.Perform(response_code);
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}
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static inline bool PutRequest(HttpModule* client, const Vector<String>& headers, const String& url,
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const String& request_data, long* response_code, String* response_data,
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String* response_header, char* error_buffer)
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{
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Curl curl;
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return curl.Init(client, headers, url, response_data, response_header, error_buffer)
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&& curl.SetOption(CURLOPT_CUSTOMREQUEST, "PUT")
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&& curl.SetOption(CURLOPT_POSTFIELDS, request_data.c_str())
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&& curl.SetOption(CURLOPT_POSTFIELDSIZE, request_data.size()) && curl.Perform(response_code);
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}
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static inline bool DeleteRequest(HttpModule* client, const Vector<String>& headers, const String& url,
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long* response_code, String* response_data, String* response_header,
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char* error_buffer)
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{
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Curl curl;
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return curl.Init(client, headers, url, response_data, response_header, error_buffer)
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&& curl.SetOption(CURLOPT_CUSTOMREQUEST, "DELETE") && curl.SetOption(CURLOPT_FOLLOWLOCATION, true)
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&& curl.Perform(response_code);
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}
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private:
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CURL* curl_;
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curl_slist* curl_headers_;
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};
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} // namespace
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namespace kiwano
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{
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namespace network
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{
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HttpModule::HttpModule()
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: timeout_for_connect_(30000 /* 30 seconds */)
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, timeout_for_read_(60000 /* 60 seconds */)
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, quit_flag_(false)
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{
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}
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void HttpModule::SetupModule()
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{
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::curl_global_init(CURL_GLOBAL_ALL);
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std::thread thread(Closure(this, &HttpModule::NetworkThread));
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thread.detach();
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}
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void HttpModule::DestroyModule()
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{
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// Set quit flag
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quit_flag_ = true;
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// Send a fake request
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{
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std::unique_lock<std::mutex> lock(request_mutex_);
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request_queue_.push(nullptr);
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}
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// Notify work thread
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sleep_cond_.notify_one();
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// Wait for work thread destroyed
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{
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std::unique_lock<std::mutex> lock(quit_mutex_);
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quit_cond_.wait_for(lock, std::chrono::seconds(1));
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}
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// Clear curl resources
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::curl_global_cleanup();
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}
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void HttpModule::Send(HttpRequestPtr request)
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{
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if (!request)
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return;
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{
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std::unique_lock<std::mutex> lock(request_mutex_);
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request_queue_.push(request);
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}
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sleep_cond_.notify_one();
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}
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void HttpModule::NetworkThread()
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{
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while (true)
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{
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HttpRequestPtr request;
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{
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std::unique_lock<std::mutex> lock(request_mutex_);
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sleep_cond_.wait(lock, [&]() { return !request_queue_.empty(); });
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request = request_queue_.front();
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request_queue_.pop();
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}
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if (quit_flag_)
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{
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quit_cond_.notify_one();
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return;
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}
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HttpResponsePtr response = new (std::nothrow) HttpResponse(request);
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Perform(request, response);
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response_mutex_.lock();
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response_queue_.push(response);
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response_mutex_.unlock();
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Application::GetInstance().PreformInMainThread(Closure(this, &HttpModule::DispatchResponseCallback));
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}
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}
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void HttpModule::Perform(HttpRequestPtr request, HttpResponsePtr response)
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{
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bool ok = false;
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long response_code = 0;
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char error_message[256] = { 0 };
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String response_header;
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String response_data;
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String url = request->GetUrl();
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String data = request->GetData();
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Vector<String> headers;
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headers.reserve(request->GetHeaders().size());
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for (const auto& pair : request->GetHeaders())
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{
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headers.push_back(pair.first + ":" + pair.second);
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}
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switch (request->GetType())
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{
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case HttpType::Get:
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ok = Curl::GetRequest(this, headers, url, &response_code, &response_data, &response_header, error_message);
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break;
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case HttpType::Post:
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ok = Curl::PostRequest(this, headers, url, data, &response_code, &response_data, &response_header,
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error_message);
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break;
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case HttpType::Put:
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ok =
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Curl::PutRequest(this, headers, url, data, &response_code, &response_data, &response_header, error_message);
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break;
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case HttpType::Delete:
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ok = Curl::DeleteRequest(this, headers, url, &response_code, &response_data, &response_header, error_message);
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break;
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default:
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KGE_ERROR("HttpModule: unknown request type, only GET, POST, PUT or DELETE is supported");
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return;
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}
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response->SetResponseCode(response_code);
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response->SetHeader(response_header);
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response->SetData(response_data);
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if (!ok)
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{
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response->SetSucceed(false);
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response->SetError(error_message);
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}
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else
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{
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response->SetSucceed(true);
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}
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}
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void HttpModule::DispatchResponseCallback()
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{
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HttpResponsePtr response;
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response_mutex_.lock();
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if (!response_queue_.empty())
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{
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response = response_queue_.front();
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response_queue_.pop();
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}
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response_mutex_.unlock();
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if (response)
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{
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HttpRequestPtr request = response->GetRequest();
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const auto& callback = request->GetResponseCallback();
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if (callback)
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{
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callback(request.Get(), response.Get());
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}
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}
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}
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} // namespace network
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} // namespace kiwano
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