1、请求连接到代理上
///////////////////////////////////////////////
BOOL CAsyncSocket::Connect( LPCTSTR lpszHostAddress, UINT nHostPort )
{
//转换目标http server的地址
ASSERT(lpszHostAddress != NULL); SOCKADDR_IN sockAddr;
memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family = AF_INET;
sockAddr.sin_addr.s_addr = inet_addr(lpszHostAddress);
if (sockAddr.sin_addr.s_addr == INADDR_NONE)
{
LPHOSTENT lphost = gethostbyname(lpszHostAddress);
if (lphost != NULL)
{
sockAddr.sin_addr.s_addr = ((LPIN_ADDR)lphost->h_addr)->s_addr;
}
else
{
BOOL bRes = CAsyncSocket::Connect(m_strProxyHost, m_nProxyPort);
if (!bRes)
{
if (GetLastError() != WSAEWOULDBLOCK)
{
m_nProxyError = PROXYERROR_NOCONN;
return FALSE;
}
}
m_nProxyPeerPort = htons((u_short)nHostPort);
m_nProxyPeerIp = 0;
m_ProxyPeerHost = lpszHostAddress;
return TRUE;
}
}
sockAddr.sin_port = htons((u_short)nHostPort);
BOOL bRes = Connect((SOCKADDR*)&sockAddr, sizeof(sockAddr));
if (bRes || GetLastError() == WSAEWOULDBLOCK)
{
m_ProxyPeerHost = lpszHostAddress;
}
return bRes;
}
2、OnConnect响应函数
void CHttpAsyncSocket::OnConnect(int nErrorCode)
{
CAsyncSocket::OnConnect(nErrorCode);
if (nErrorCode)
{ //不能连接到代理上
Close();
return;
} //发送连接到目标server的请求
CString str;
str.Format("CONNECT %s:%d HTTP/1.0\r\nHost: %s:%d\r\n\r\n",
m_ProxyPeerHost, ntohs(m_nProxyPeerPort), m_ProxyPeerHost, ntohs(m_nProxyPeerPort)); int num = CAsyncSocket::Send(str, str.GetLength());
if (numsent == SOCKET_ERROR || numsent < str.GetLength())
{
if (GetLastError()!=WSAEWOULDBLOCK || numsent<str.GetLength())
{
Close();
return;
}
}
}
3、在OnReceive里面收到server发来的回复却是"HTTP/1.0 403 Forbidden",
但是我在IE里面设置却是有效地，能成功下载文件，不知道上面的流程哪个地方有问题？请各位大侠指点！不胜感激！
///////////////////////////////////////////////
BOOL CAsyncSocket::Connect( LPCTSTR lpszHostAddress, UINT nHostPort )
{
//转换目标http server的地址
ASSERT(lpszHostAddress != NULL); SOCKADDR_IN sockAddr;
memset(&sockAddr,0,sizeof(sockAddr)); sockAddr.sin_family = AF_INET;
sockAddr.sin_addr.s_addr = inet_addr(lpszHostAddress);
if (sockAddr.sin_addr.s_addr == INADDR_NONE)
{
LPHOSTENT lphost = gethostbyname(lpszHostAddress);
if (lphost != NULL)
{
sockAddr.sin_addr.s_addr = ((LPIN_ADDR)lphost->h_addr)->s_addr;
}
else
{
BOOL bRes = CAsyncSocket::Connect(m_strProxyHost, m_nProxyPort);
if (!bRes)
{
if (GetLastError() != WSAEWOULDBLOCK)
{
m_nProxyError = PROXYERROR_NOCONN;
return FALSE;
}
}
m_nProxyPeerPort = htons((u_short)nHostPort);
m_nProxyPeerIp = 0;
m_ProxyPeerHost = lpszHostAddress;
return TRUE;
}
}
sockAddr.sin_port = htons((u_short)nHostPort);
BOOL bRes = Connect((SOCKADDR*)&sockAddr, sizeof(sockAddr));
if (bRes || GetLastError() == WSAEWOULDBLOCK)
{
m_ProxyPeerHost = lpszHostAddress;
}
return bRes;
}
2、OnConnect响应函数
void CHttpAsyncSocket::OnConnect(int nErrorCode)
{
CAsyncSocket::OnConnect(nErrorCode);
if (nErrorCode)
{ //不能连接到代理上
Close();
return;
} //发送连接到目标server的请求
CString str;
str.Format("CONNECT %s:%d HTTP/1.0\r\nHost: %s:%d\r\n\r\n",
m_ProxyPeerHost, ntohs(m_nProxyPeerPort), m_ProxyPeerHost, ntohs(m_nProxyPeerPort)); int num = CAsyncSocket::Send(str, str.GetLength());
if (numsent == SOCKET_ERROR || numsent < str.GetLength())
{
if (GetLastError()!=WSAEWOULDBLOCK || numsent<str.GetLength())
{
Close();
return;
}
}
}
3、在OnReceive里面收到server发来的回复却是"HTTP/1.0 403 Forbidden",
但是我在IE里面设置却是有效地，能成功下载文件，不知道上面的流程哪个地方有问题？请各位大侠指点！不胜感激！
试试:
str.Format("CONNECT %s:%d HTTP/1.1\r\nUser-Agent: EA/0.1\r\n\r\n", m_ProxyPeerHost, m_nProxyPeerPort);
HTTP/1.0 403 Forbidden
Server: Squid/2.4.STABLE6
Mime-Version: 1.0
Date: Sat, 06 Sep 2003 04:11:12 GMT
Content-Type: text/html
Content-Length: 697
Expires: Sat, 06 Sep 2003 04:11:12 GMT
X-Squid-Error: ERR_ACCESS_DENIED 0
X-Cache: MISS from ns.mydomain
Proxy-Connection: keep-alive<HTML><HEAD>
<TITLE>ERROR: The requested URL could not be retrieved</TITLE>
</HEAD><BODY>
<H1>ERROR</H1>
<H2>The requested URL could not be retrieved</H2>
<HR>
<P>
While trying to retrieve the URL:
<A HREF="sq2.onlin down.net:80">sq2.onlinedown.net:80</A>
<P>
The following error was encountered:
<UL>
<LI>
<STRONG>
Access Denied.
</STRONG>
<P>
Access control configuration prevents your request from
being allowed at this time. Please contact your service provider if
you feel this is incorrect.
</UL>
<P>Your cache administrator is <A HREF="mailto:root">root</A>.
<br clear="all">
<hr noshade size=1>
Generated Sat, 06 Sep 2003 04:11:12 GMT by ns.mydomain (Squid/2.4.STABLE6)
</BODY></HTML>
可能那个网站需要cookie