http下载和上传文件 c++ 封装类

// // HttpClient.cpp // Design // // Created by cwliu on 14-12-5. // Copyright (c) 2014-12-08 cwliu. All rights reserved. // #include "HttpClient.h" int CHttpClient::ConnectServer(char* sHost,int nPort) { //gethostbyname struct hostent *h; if((h=gethostbyname(sHost))==NULL) { printf("gethostbyname failed\n"); return -1; } printf("HostName :%s\n",h->h_name); sprintf(m_sHostIP, "%s",inet_ntoa(*((struct in_addr *)h->h_addr))); printf("IP Address :%s\n",m_sHostIP); m_nPort=nPort; int nRet=m_tcp.Open(nPort, m_sHostIP); if (0!=nRet) { printf("socket connect failed\n"); return -1; } return 0; } int CHttpClient::DisconnetServer() { m_tcp.Close(); return 0; } int CHttpClient::HttpGet(char* sUrl,char* sResponse) { char post[300],host[100],content_len[100]; char *lpbuf,*ptmp; int len=0; lpbuf = NULL; const char *header2="User-Agent: linux_http_client Http 1.0\r\nCache-Control: no-cache\r\nContent-Type: application/x-www-form-urlencoded\r\nAccept: */*\r\n"; sprintf(post,"GET %s HTTP/1.0\r\n",sUrl); sprintf(host,"HOST: %s:%d\r\n",m_sHostIP,m_nPort); sprintf(content_len,"Content-Length: %d\r\n\r\n",1); len = strlen(post)+strlen(host)+strlen(header2)+strlen(content_len)+1; lpbuf = (char*)malloc(len); if(lpbuf==NULL) { return -1; } strcpy(lpbuf,post); strcat(lpbuf,host); strcat(lpbuf,header2); strcat(lpbuf,content_len); strcat(lpbuf," "); m_tcp.Send((unsigned char*)lpbuf,len); int nRet=m_tcp.Recv(); if (nRet>0) { memcpy(sResponse,m_tcp.GetBuffer(), nRet); printf("%s\n",sResponse); } return 0; } int CHttpClient::HttpPostFile(char* sUrl,char* sFileName) { // check file and read it long nFileLen=0; FILE* pFile=fopen(sFileName,"r"); if (!pFile) { printf("read file failed\n"); return -1; } fseek(pFile, 0, SEEK_END); nFileLen=ftell(pFile); printf("File length is %ld\n", nFileLen); if (!nFileLen) { printf("file len is 0\n"); return -1; } fseek(pFile, 0, SEEK_SET); char* sFileText=new char[nFileLen+1]; memset(sFileText, 0, nFileLen+1); fread(sFileText, 1, nFileLen, pFile); fclose(pFile); char* pBody=new char[32*1024]; memset(pBody,0,32*1024); char sContentDisp[128]; sprintf(sContentDisp, "Content-Disposition: form-data;name=\"file\";filename=\"%s\"\r\n",sFileName); strcat(pBody,"-------------------------------7db372eb000e2\r\n"); strcat(pBody, sContentDisp); strcat(pBody, "Content-Type: text/plain\r\n\r\n"); strcat(pBody, sFileText); strcat(pBody, "\r\n-------------------------------7db372eb000e2--\r\n"); char post[300]; sprintf(post,"POST %s HTTP/1.0\r\n",sUrl); char header[1024]; char host[64]; sprintf(host,"HOST: %s:%d\r\n",m_sHostIP,m_nPort); char sContentLen[32]; sprintf(sContentLen, "Content-Length: %ld\r\n",strlen(pBody)+1); // read file and caluate the file sprintf(header, "%s","Accept:*/*\r\n"); strcat(header, host); strcat(header, "User-Agent: JboxHttpClient\r\n"); strcat(header, sContentLen); strcat(header,"Expect: 100-continue\r\n"); strcat(header, "Content-Type:multipart/form-data;boundary=-----------------------------7db372eb000e2\r\n\r\n"); char* pBuf=new char[64*1024]; memset(pBuf, 0, 64*1024); strcat(pBuf, post); strcat(pBuf, header); strcat(pBuf,pBody); printf("%s\n",pBuf); m_tcp.Send((unsigned char*)pBuf, strlen(pBuf)+1); char sResponse[1024]; memset(sResponse, 0, 1024); int nRet=m_tcp.Recv(); if (nRet>0) { memcpy(sResponse, m_tcp.GetBuffer(), nRet); printf("%s\n",sResponse); if (strstr(sResponse,"200")) { delete[] pBody; delete[] pBuf; printf("post file success \n"); return 0; } else { printf("post file failed \n"); } } delete[] pBody; delete[] pBuf; return -1; }