mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-01 00:57:28 +08:00
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016 xiongziliang <771730766@qq.com>
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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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 all
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* 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 THE
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* SOFTWARE.
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*/
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#include "HttpDownloader.h"
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#include "Util/MD5.h"
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#include "Util/File.h"
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using namespace ZL::Util;
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namespace ZL {
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namespace Http {
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HttpDownloader::HttpDownloader() {
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}
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HttpDownloader::~HttpDownloader() {
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closeFile();
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}
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void HttpDownloader::startDownload(const string& url, const string& filePath,bool bAppend,float timeOutSecond) {
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_filePath = filePath;
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_timeOutSecond = timeOutSecond;
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_downloadTicker.resetTime();
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if(_filePath.empty()){
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_filePath = exeDir() + "HttpDownloader/" + MD5(url).hexdigest();
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}
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_saveFile = File::createfile_file(_filePath.data(),bAppend ? "ab" : "wb");
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if(!_saveFile){
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auto strErr = StrPrinter << "打开文件失败:" << filePath << endl;
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throw std::runtime_error(strErr);
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}
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_bDownloadSuccess = false;
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if(bAppend){
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auto currentLen = ftell(_saveFile);
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if(currentLen){
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//最少续传一个字节，怕遇到http 416的错误
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currentLen -= 1;
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fseek(_saveFile,-1,SEEK_CUR);
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}
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addHeader("Range", StrPrinter << "bytes=" << currentLen << "-" << endl);
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}
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setMethod("GET");
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sendRequest(url,timeOutSecond);
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}
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void HttpDownloader::onResponseHeader(const string& status,const HttpHeader& headers) {
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_downloadTicker.resetTime();
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if(status != "200" && status != "206"){
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//失败
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shutdown();
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closeFile();
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File::delete_file(_filePath.data());
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if(_onResult){
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auto errMsg = StrPrinter << "Http Status:" << status << endl;
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_onResult(Err_other,errMsg.data(),_filePath.data());
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_onResult = nullptr;
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}
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}
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}
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void HttpDownloader::onResponseBody(const char* buf, size_t size, size_t recvedSize, size_t totalSize) {
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_downloadTicker.resetTime();
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if(_saveFile){
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fwrite(buf,size,1,_saveFile);
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}
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}
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//string getMd5Sum(const string &filePath){
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// auto fp = File::createfile_file(filePath.data(),"rb");
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// fseek(fp,0,SEEK_END);
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// auto sz = ftell(fp);
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// char tmp[sz];
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// fseek(fp,0,SEEK_SET);
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// auto rd = fread(tmp,1,sz,fp);
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// InfoL << sz << " " << rd;
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// fclose(fp);
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// return MD5(string(tmp,sz)).hexdigest();
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//}
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void HttpDownloader::onResponseCompleted() {
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closeFile();
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//InfoL << "md5Sum:" << getMd5Sum(_filePath);
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_bDownloadSuccess = true;
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if(_onResult){
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_onResult(Err_success,"success",_filePath.data());
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_onResult = nullptr;
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}
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}
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void HttpDownloader::onDisconnect(const SockException &ex) {
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closeFile();
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if(!_bDownloadSuccess){
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File::delete_file(_filePath.data());
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}
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if(_onResult){
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_onResult(ex.getErrCode(),ex.what(),_filePath.data());
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_onResult = nullptr;
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}
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}
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void HttpDownloader::closeFile() {
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if(_saveFile){
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fflush(_saveFile);
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fclose(_saveFile);
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_saveFile = nullptr;
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}
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}
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void HttpDownloader::onManager(){
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if(_downloadTicker.elapsedTime() > _timeOutSecond * 1000){
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//超时
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onDisconnect(SockException(Err_timeout,"download timeout"));
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shutdown();
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}
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}
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} /* namespace Http */
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} /* namespace ZL */
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