// testHttp003.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
// webrequest.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include <string>
#include <fstream>
#include <winsock2.h>
#include <stdio.h>
#pragma comment(lib, "WS2_32")
using namespace std;
namespace DEVWEB
{
struct ACloseSkt
{
ACloseSkt(SOCKET h)
{
m_h = h;
}
~ACloseSkt()
{
if(m_h)
closesocket(m_h);
m_h = 0;
}
SOCKET m_h;
};
struct RequestParam
{
bool bPost; //是否为POST请求
const char* pPostData; //为POST数据，需要自已维护内存;
unsigned int uiPostLen; //为POST数据长度，主要为了兼容可以上传二进制数据，一般请求就为pPostData字符串长度
const char* pReferer; //请求的引用页面，就是来源页面
const char* pAttachHeader;//附加自定义头
bool bBlock; //true=阻塞式连接，false=异步连接,*******注意：使用异步必须设置超时时间
unsigned int uiTimeout; //异步超时 单位ms
RequestParam(){
memset(this,0, sizeof(RequestParam));
bBlock = true; bPost = false;
}
};
void GetRealIP(string& ip, string& retip)
{
retip = ip;
unsigned long t = inet_addr((char*)(LPCSTR)ip.c_str());
if (t == INADDR_NONE)
{
hostent* hostInfo = gethostbyname((char*)(LPCSTR)ip.c_str());
if (hostInfo)
{
struct in_addr *addr;
addr = (struct in_addr*)hostInfo->h_addr_list[0];
if(addr!=NULL)
{
retip = inet_ntoa(*addr);
}
}else{
printf("GetRealIP can‘t parse domain %s\n",ip.c_str());
}
}
}
//////////////////////////////////////////////////////////////////////////
//szURL 一个完整的URL仅HTTP，HTTPS不支持，可以包含GET参数，如index.php?username=test
//response 为请求返回的结果，包含HTTP头信息
//pRP为附加参数，完成更复杂的请求
///////////////////////////////////////////////////////////////////////////
bool WebRequest( const char* szURL, std::string& response, RequestParam* pRP = 0)
{
if (!szURL )
return false;
WORD wVersionRequested;
WSADATA wsaData;
int vMMVersion=MAKEWORD(1,1);
int res = WSAStartup(vMMVersion, &wsaData);
SOCKET hSkt = socket(AF_INET,SOCK_STREAM,res);
if (INVALID_SOCKET == hSkt){
OutputDebugString("WebRequest socket create failed!\n");
return false;
}
ACloseSkt askt(hSkt);
//是否设置为异步
if ( pRP && pRP->bBlock == false)
{
ULONG nMode = 1;
ioctlsocket( hSkt,FIONBIO,&nMode);
}
string strURL(szURL),host,ip,requrl;
unsigned int nport = 80;
if ( stricmp(string(strURL.substr(0,7)).c_str(), "http://") )
{
OutputDebugString("WebRequest parse url error, need http://\n");
return false;
}else{ //parse url;
size_t nMH = strURL.find(‘:‘,8);
size_t nPre =strURL.find(‘/‘,8);
if ( nMH == -1 && nPre == -1)
{
host = strURL.substr(7);
requrl = "/";
}else if ( nPre != -1){
if ( nMH != -1 && nPre > nMH){
host = strURL.substr(7,nMH-7);
nport = atoi( string(strURL.substr(nMH+1, nPre-1-nMH)).c_str());
}else{
host = strURL.substr(7,nPre-7);
}
requrl = strURL.substr(nPre);
}else if (nMH != -1){
host = strURL.substr(7, nMH-7);
nport= atoi( string(strURL.substr(nMH+1)).c_str());
requrl = "/";
}
}
GetRealIP(host,ip);
sockaddr_in addr;
addr.sin_addr.S_un.S_addr = inet_addr( ip.c_str() );
addr.sin_port = htons(nport);
addr.sin_family = AF_INET;
if (pRP && pRP->bBlock)
{
if (SOCKET_ERROR == connect( hSkt, (sockaddr*)&addr,sizeof(addr)))
{
OutputDebugString("WebRequest connect server failed!\n");
return false;
}
}else{
if (SOCKET_ERROR == connect( hSkt, (sockaddr*)&addr, sizeof(addr)))
{
if ( WSAGetLastError() == 10035 )
{
//connectioning
}else{
OutputDebugString("WebRequest connect server failed!\n");
return false;
}
}
DWORD dwTick = GetTickCount();
do{
fd_set Set,WSet;
FD_ZERO(&Set);
FD_ZERO(&WSet);
FD_SET(hSkt,&Set);
FD_SET(hSkt,&WSet);
timeval time;
time.tv_sec = 0;
time.tv_usec = 0;
int nS = select(0, &Set, &WSet, NULL, &time);
if( nS == SOCKET_ERROR )
{
OutputDebugString("WebRequest connect server failed!(SELECT)\n");
return false;
}else if(nS){
break;//connect sucess.
}else{
if ( (GetTickCount() - dwTick) > pRP->uiTimeout )
{
//timeout
OutputDebugString("WebRequest connect server timeout!(SELECT)\n");
return false;
}
}
}while(true);
}
//fill header;
string header;
bool bSendBin = false;
if (pRP)
{
header.append( pRP->bPost ? "POST " : "GET ");
header.append(requrl);
header.append(" HTTP/1.1\r\n");
header.append("host:");
header.append(host);
header.append("\r\nUser-Agent:Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\r\n");
header.append("Content-Type:application/x-www-form-urlencoded\r\n");
header.append("Accept:text/html,application/xhtml+xml,*/*\r\nConnection:close\r\n");
char szCSize[50];
sprintf(szCSize,"Content-Length:%d\r\n\r\n",pRP->uiPostLen);
header.append(szCSize);
if (pRP->pPostData){
if ( strlen(pRP->pPostData) <= pRP->uiPostLen){
bSendBin = true;
}else{
header.append(pRP->pPostData);
}
}
}else{
header.append("GET ");
header.append(requrl);
header.append(" HTTP/1.1\r\n");
header.append("host:");
header.append(host);
header.append("\r\nUser-Agent:Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\r\n");
header.append("Content-Type:application/x-www-form-urlencoded\r\n");
header.append("Accept:text/html,application/xhtml+xml,*/*\r\nConnection:close\r\n\r\n");
}
size_t headerlen = header.size();
size_t nSendLen = 0;
const char* pdata = header.c_str();
DWORD dwTick = GetTickCount();
do
{
int n = send(hSkt, pdata + nSendLen, int(headerlen - nSendLen),0);
if( n == SOCKET_ERROR ){
if ( 10035 == WSAGetLastError())
{
//wait for send.
if (pRP && GetTickCount() - dwTick >= pRP->uiTimeout)
{
OutputDebugString("WebRequest send failed!\n");
return false;
}
Sleep(10);
}else{
OutputDebugString("WebRequest send failed!\n");
return false;
}
}else if( n==0)
{
OutputDebugString("WebRequest send failed!\n");
return false;
break;
}else{
dwTick = GetTickCount();
nSendLen += n;
}
} while (nSendLen < headerlen );
if(bSendBin && pRP && pRP->pPostData && pRP->uiPostLen)
{
nSendLen = 0;
pdata = (const char*) pRP->pPostData;
dwTick = GetTickCount();
do
{
int n = send(hSkt, pdata + nSendLen, pRP->uiPostLen - nSendLen,0);
if( n == SOCKET_ERROR ){
if ( 10035 == WSAGetLastError())
{
//wait for send.
if (pRP && GetTickCount() - dwTick >= pRP->uiTimeout)
{
OutputDebugString("WebRequest send timeout!\n");
return false;
}
Sleep(10);
}else{
OutputDebugString("WebRequest send failed!\n");
return false;
}
}else if( n==0)
{
OutputDebugString("WebRequest send failed!\n");
return false;
break;
}else{
dwTick = GetTickCount();
nSendLen += n;
}
} while (nSendLen < pRP->uiPostLen );
}
//recv response
char buf[2049];
string& request = response;
request.clear();
dwTick = GetTickCount();
do
{
int n = recv(hSkt, buf,2048,0);
if ( n == SOCKET_ERROR )
{
if ( 10035 != WSAGetLastError() )
{
OutputDebugString("DevWebService recv failed!\n");
return 0;
break;
}else{
if (pRP && GetTickCount() - dwTick >= pRP->uiTimeout){
OutputDebugString("WebRequest recv timeout!\n");
return false;
}
Sleep(10);
}
}else if( n == 0 ){
//host close recv finish
OutputDebugString("WebRequest Recv FINISHED!\n");
break;
}else{
buf[n] = ‘\0‘;
request.append(buf); dwTick = GetTickCount();
}
} while (true);
return true;
}
string GetHtml(string response)
{
int conn_index=response.find("Connection:");
string str=response.substr(conn_index);
int line_index=str.find("\r\n");
if(line_index!=-1)
{
string contect=str.substr(line_index);
//MessageBox(NULL,contect.c_str(),"ok",0);
return contect;
}
return str;
}
}
//UTF8编码
std::string utf2ansi(LPCSTR pszSrc)
{
int nSize = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)pszSrc, -1, 0, 0);
if(nSize <= 0) return NULL;
WCHAR *pwsz = new WCHAR[nSize+1];
if( NULL == pwsz) return NULL;
MultiByteToWideChar(CP_UTF8, 0,(LPCSTR)pszSrc, nSize, pwsz, nSize);
pwsz[nSize] = 0;
char *psz = new char[nSize+1];
WideCharToMultiByte(CP_ACP, 0, pwsz, nSize, psz, nSize, NULL, NULL);
string str = psz;
delete pwsz;
delete psz;
return str;
}
int WideToUTF8(const std::string& _src,string fileName)
{
int nBufSize = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)_src.c_str(),-1, NULL, 0, 0, FALSE);
char *szBuf = new char[nBufSize];
WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)_src.c_str(),-1, szBuf, nBufSize, 0, FALSE);
ofstream fout(fileName.c_str(),std::ios::out);//std::ios::binary
fout.write(szBuf,nBufSize);
fout.close();
//std::string strRet(szBuf);
//delete []szBuf;
//szBuf = NULL;
/** 写出宽字符串时这样用，内容在text中
if(fopen_s( &pFile, "log.txt","a")!=0)
{
std::string str = WideToUTF8( text );
fputs(str.c_str(), pFile);
fputc(‘\n‘,pFile);
fclose(pFile);
}*/
return 0;
}
int writeToTxt(string fileName,string data)
{
ofstream fout(fileName.c_str(),std::ios::out);//std::ios::binary
//0xef, 0xbb, 0xbf,
//fout.write((char*)0x00ef,4);
//fout.write((char*)0x00bb,4);
//fout.write((char*)0x00bf,4);
//unsigned char uniTxt[] = {0xFF, 0xFE}; // Unicode file header
//unsigned char endianTxt[] = {0xFE, 0xFF}; // Unicode big endian file header
//unsigned char utf8Txt[] = {0xEF, 0xBB, 0xBF}; // UTF_8 file header
fout<<0xEF<<0xBB<<0xBF<<endl;
fout.write(data.c_str(),data.length());
fout.close();
return 0;
}
int writeToTxt002(string fileName,string data)
{
FILE *file;
file=fopen(fileName.c_str(),"rw");
if(file==NULL)
{
printf("打开失败!\n");
return -1;
}
fwrite(data.c_str(),data.length(),1,file);
fclose(file);
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
string rs;
char post[80];
sprintf(post,"username=xj&userpassword=123456");
DEVWEB::RequestParam rp;
rp.bPost = false;
rp.pPostData = post;
rp.uiPostLen = strlen(post);
if ( DEVWEB::WebRequest( "http://www.baidu.com", rs,&rp))
{
rs=utf2ansi(rs.c_str());
MessageBox(NULL,rs.c_str(),"ok",0);
string html=DEVWEB::GetHtml(rs);
MessageBox(NULL,html.c_str(),"ok",0);
writeToTxt("test.html",html);
}else{
MessageBox(NULL,"错误","ok",0);
}
getchar();
return 0;
}
时间： 2024-10-07 11:00:16