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WinHttp.cpp
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WinHttp.cpp
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#include "WinHttp.h"
#pragma comment(lib,"Winhttp.lib")
CWinHttp::CWinHttp(LPCWSTR pwszVerb)
{
hSession = NULL;
hConnect = NULL;
hRequest = NULL;
m_lenofcookie=0;
m_lenofallheaders=0;
m_strAllHeaders=NULL;
lstrcpyW(this->m_strVerb,pwszVerb);
m_cookies=NULL;
}
CWinHttp::~CWinHttp()
{
// Close any open handles.
if( hRequest ) WinHttpCloseHandle( hRequest );
if( hConnect ) WinHttpCloseHandle( hConnect );
if( hSession ) WinHttpCloseHandle( hSession );
if(m_cookies)
{
delete[] m_cookies;
m_cookies=0;
}
if(m_strAllHeaders)
{
delete[] m_strAllHeaders;
m_strAllHeaders=0;
}
}
bool CWinHttp::AddRequestHeader( _In_ LPCWSTR pwszHeaders,
_In_ DWORD dwHeadersLength,
_In_ DWORD dwModifiers
)
{
bool bRet=false;
int n;
if(!WinHttpAddRequestHeaders(hRequest,pwszHeaders,dwHeadersLength,dwModifiers))
{
n=GetLastError();
goto exit0;
}
bRet=true;
exit0:
return bRet;
}
bool CWinHttp::SendRequest(PVOID pBuffer,int LenOfData)
{
bool bRet=false,
bResults=false;
//int n=GetLastError();
if(!hRequest)
goto exit0;
// Send a request.
if(lstrcmpW(m_strVerb,L"GET")==0)
{
bResults = WinHttpSendRequest(
hRequest,
WINHTTP_NO_ADDITIONAL_HEADERS,
0,
WINHTTP_NO_REQUEST_DATA,
0,
0,
0);
}
else
{
if(LenOfData>=1024)
goto exit0;
bResults = WinHttpSendRequest(
hRequest,
WINHTTP_NO_ADDITIONAL_HEADERS,
0,
WINHTTP_NO_REQUEST_DATA,
0,
LenOfData,
0);
PostDataToServer(pBuffer,LenOfData);
}
if(!bResults)
goto exit0;
// End the request.
bResults = WinHttpReceiveResponse(hRequest, NULL);
if(!bResults)
goto exit0;
bRet=true;
exit0:
assert(bRet!=false);
return bRet;
}
bool CWinHttp::Open(LPCWSTR url)
{
bool bRet=false;
bool bResults=false;
if(!CrackURL(url))
goto exit0;
// Use WinHttpOpen to obtain a session handle.
hSession = WinHttpOpen(
L"BbLiFe",
WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS,
0
);
if (!hSession)
goto exit0;
// Specify an HTTP server.
hConnect = WinHttpConnect(
hSession,
m_strHostName,
m_Port,
0
);
if(!hConnect)
goto exit0;
// Create an HTTP request handle.
hRequest = WinHttpOpenRequest(
hConnect,
m_strVerb,
m_stUrlPath,
NULL, WINHTTP_NO_REFERER,
WINHTTP_DEFAULT_ACCEPT_TYPES,
WINHTTP_FLAG_ESCAPE_DISABLE
);
bRet=true;
exit0:
assert(bRet!=false);
return bRet;
}
bool CWinHttp::CrackURL(LPCWCH url)
{
bool bRet=false;
URL_COMPONENTS urlComp;
DWORD dwUrlLen = 0;
// Initialize the URL_COMPONENTS structure.
ZeroMemory(&urlComp, sizeof(urlComp));
urlComp.dwStructSize = sizeof(urlComp);
urlComp.lpszHostName=m_strHostName;
urlComp.lpszUrlPath=m_stUrlPath;
// Set required component lengths to non-zero so that they are cracked.
urlComp.dwHostNameLength = 256;
urlComp.dwUrlPathLength = 256;
// Crack the URL.
if( !WinHttpCrackUrl(url,
NULL,
ICU_ESCAPE,
&urlComp )
)
{
//int n=GetLastError();
goto exit0;
}
else
{
m_dwServiceType=urlComp.nScheme;
m_Port=urlComp.nPort;
}
bRet=true;
exit0:
assert(bRet!=false);
return bRet;
}
void CWinHttp::SetPort(int port)
{
m_Port=port;
}
bool CWinHttp::GetResponseConext()
{
bool bRet=false;
DWORD dwSize=0 ;
LPSTR pszOutBuffer;
if( hRequest )
{
do
{
// Check for available data.
dwSize = 0;
if( !WinHttpQueryDataAvailable( hRequest, &dwSize ) )
goto exit0;
if(dwSize==0)
break;
else
{
// Allocate space for the buffer.
pszOutBuffer = new char[dwSize+1];
// Read the data.
ZeroMemory( pszOutBuffer, dwSize+1 );
if( !WinHttpReadData(
hRequest,
(LPVOID)pszOutBuffer,
dwSize,
0)
)
goto exit0;
else
{
m_strResponseContent=m_strResponseContent+pszOutBuffer;
}
// Free the memory allocated to the buffer.
delete [] pszOutBuffer;
}
} while( dwSize > 0 );
}
bRet=true;
exit0:
assert(bRet!=false);
return bRet;
}
bool CWinHttp::GetAllHeadersLength()
{
bool bRet =false;
WinHttpQueryHeaders(
hRequest,
WINHTTP_QUERY_RAW_HEADERS_CRLF,
WINHTTP_HEADER_NAME_BY_INDEX,
WINHTTP_NO_OUTPUT_BUFFER,
&m_lenofallheaders,
WINHTTP_NO_HEADER_INDEX );
bRet=true;
exit0:
return bRet;
}
bool CWinHttp::GetAllHeaders()
{
bool bRet =false;
GetAllHeadersLength();
m_strAllHeaders=new WCHAR[m_lenofallheaders+1];
if(!WinHttpQueryHeaders(hRequest,
WINHTTP_QUERY_RAW_HEADERS_CRLF,
WINHTTP_HEADER_NAME_BY_INDEX,
m_strAllHeaders,
&m_lenofallheaders,
WINHTTP_NO_HEADER_INDEX ))
goto exit0;
bRet=true;
exit0:
return bRet;
}
bool CWinHttp::GetCookiesLength()
{
bool bRet =false;
DWORD dwRead=1024*5;
int n;
WinHttpQueryHeaders(hRequest,
WINHTTP_QUERY_COOKIE ,
WINHTTP_HEADER_NAME_BY_INDEX,
WINHTTP_NO_OUTPUT_BUFFER,
&m_lenofcookie,
WINHTTP_NO_HEADER_INDEX );
bRet=true;
exit0:
return bRet;
}
bool CWinHttp::GetCookies()
{
bool bRet =false;
GetCookiesLength();
m_cookies=new char[m_lenofcookie+1];
int n;
if(!WinHttpQueryHeaders(
hRequest,
WINHTTP_QUERY_RAW_HEADERS_CRLF,
WINHTTP_HEADER_NAME_BY_INDEX,
m_cookies,
&m_lenofcookie,
WINHTTP_NO_HEADER_INDEX ))
{
n=GetLastError();
goto exit0;
}
bRet=true;
exit0:
return bRet;
}
bool CWinHttp::PostDataToServer(PVOID pBuffer,int len)
{
bool bRet=false;
DWORD dwBytesWritten=0;
int index=0;
while(1)
{
if( !WinHttpWriteData(
hRequest,
pBuffer,
index,
&dwBytesWritten)
)
goto exit0;
if(index==len)
break;
pBuffer=(PVOID)((DWORD)pBuffer+dwBytesWritten);
index+=dwBytesWritten;
}
bRet=true;
exit0:
assert(bRet!=false);
return bRet;
}
void ConvertUtf8ToGBK( string& str)
{
string strtemp;
int len=MultiByteToWideChar(CP_UTF8, 0, (LPCTSTR)str.c_str(), -1, NULL,0);
WCHAR * wszGBK = new WCHAR[len];
memset(wszGBK, 0, len * 2 );
MultiByteToWideChar(CP_UTF8, 0, (LPCTSTR)str.c_str(), -1, wszGBK, len);
len = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);
char *szGBK=new char[len ];
memset(szGBK, 0, len);
WideCharToMultiByte (CP_ACP, 0, wszGBK, -1, szGBK, len, NULL,NULL);
str=szGBK;
delete[] szGBK;
delete[] wszGBK;
}
void ConvertGBKToUtf8(string&strGBK )
{
int len=MultiByteToWideChar(CP_ACP, 0, (LPCTSTR)strGBK.c_str(), -1, NULL,0);
WCHAR * wszUtf8 = new WCHAR[len];
memset(wszUtf8, 0, len * 2 );
MultiByteToWideChar(CP_ACP, 0, (LPCTSTR)strGBK.c_str(), -1, wszUtf8, len);
len = WideCharToMultiByte(CP_UTF8, 0, wszUtf8, -1, NULL, 0, NULL, NULL);
char *szUtf8=new char[len ];
memset(szUtf8, 0, len);
WideCharToMultiByte (CP_UTF8, 0, wszUtf8, -1, szUtf8, len, NULL,NULL);
strGBK = szUtf8;
delete[] szUtf8;
delete[] wszUtf8;
}