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| // HTTPReader.cpp: implementation of the CHTTPReader class.
//
//////////////////////////////////////////////////////////////////////
#include "HTTPReader.h"
#include <string.h>
#include <tchar.h>
#pragma comment(lib,"wininet")
#define _CRT_SECURE_NO_WARNINGS
CHTTPReader::CHTTPReader(LPCTSTR lpszServerName,bool bUseSSL)
: m_hInternet(NULL),
m_hConnection(NULL),
m_hRequest(NULL),
m_lpszServerName(NULL),
m_lpszDefaultHeader(NULL),
m_lpszDataBuffer(NULL),
m_dwBufferSize(0),
m_bUseSSL(bUseSSL),
m_dwLastError(0)
{
SetDefaultHeader(TEXT(
"Content-Type: application/x-www-form-urlencoded\r\nAccept-Language:ru\r\nAccept-Encoding:gzip, deflate\r\nUser-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.12 (KHTML, like Gecko) Maxthon/3.0 Chrome/26.0.1410.43 Safari/535.12"));
StrDup(m_lpszServerName,lpszServerName);
}
CHTTPReader::~CHTTPReader()
{
delete m_lpszDataBuffer;
delete m_lpszServerName;
SetDefaultHeader(NULL);
}
bool CHTTPReader::CheckError(bool bTest)
{
if (bTest == false) {
m_dwLastError = ::GetLastError();
}
return bTest;
}
bool CHTTPReader::OpenInternet(LPCTSTR lpszAgent)
{
if (m_hInternet == NULL)
m_hInternet = ::InternetOpen(
lpszAgent,
INTERNET_OPEN_TYPE_PRECONFIG,
NULL,
NULL,
0);
return CheckError(m_hInternet != NULL);
}
void CHTTPReader::CloseInternet ()
{
CloseConnection();
if (m_hInternet)
::InternetCloseHandle(m_hInternet);
m_hInternet = NULL;
}
bool CHTTPReader::OpenConnection (LPCTSTR lpszServerName)
{
if (OpenInternet() && m_hConnection == NULL)
m_hConnection = ::InternetConnect(
m_hInternet,
lpszServerName?
lpszServerName:
m_lpszServerName?
m_lpszServerName:
TEXT("localhost"),
m_bUseSSL? INTERNET_DEFAULT_HTTPS_PORT: INTERNET_DEFAULT_HTTP_PORT,
NULL,
NULL,
INTERNET_SERVICE_HTTP,
0,
1u);
return CheckError(m_hConnection != NULL);
}
void CHTTPReader::CloseConnection ()
{
CloseRequest();
if (m_hConnection)
::InternetCloseHandle(m_hConnection);
m_hConnection = NULL;
}
bool CHTTPReader::SendRequest (LPCTSTR lpszVerb,
LPCTSTR lpszAction,
LPCTSTR lpszData,
LPCTSTR lpszReferer)
{
if (OpenConnection()) {
CloseRequest();
LPCTSTR AcceptTypes[] = { TEXT("*/*"), NULL};
m_hRequest = ::HttpOpenRequest(
m_hConnection,
lpszVerb,
lpszAction,
NULL,
lpszReferer,
AcceptTypes,
(m_bUseSSL? INTERNET_FLAG_SECURE|INTERNET_FLAG_IGNORE_CERT_CN_INVALID: 0)
| INTERNET_FLAG_KEEP_CONNECTION,
1);
if (m_hRequest != NULL) {
if (::HttpSendRequest(
m_hRequest,
m_lpszDefaultHeader,
-1,
(LPVOID)lpszData,
lpszData? _tcslen(lpszData): 0) == FALSE) {
CheckError(false);
CloseRequest();
return false;
}
}
}
return CheckError(m_hRequest != NULL);
}
bool CHTTPReader::Get (LPCTSTR lpszAction,LPCTSTR lpszReferer)
{
return SendRequest(TEXT("GET"),lpszAction,NULL,lpszReferer);
}
bool CHTTPReader::Post (LPCTSTR lpszAction,LPCTSTR lpszData,LPCTSTR lpszReferer)
{
return SendRequest(TEXT("POST"),lpszAction,lpszData,lpszReferer);
}
void CHTTPReader::CloseRequest ()
{
if (m_hRequest)
::InternetCloseHandle(m_hRequest);
m_hRequest = NULL;
}
void CHTTPReader::StrDup (LPTSTR& lpszDest,LPCTSTR lpszSource)
{
delete lpszDest;
if (lpszSource == NULL) {
lpszDest = NULL;
} else {
lpszDest = new TCHAR[_tcslen(lpszSource)+1];
_tcscpy(lpszDest,lpszSource);
}
}
void CHTTPReader::SetDefaultHeader (LPCTSTR lpszDefaultHeader)
{
StrDup(m_lpszDefaultHeader,lpszDefaultHeader);
}
char *CHTTPReader::GetData (char *lpszBuffer,DWORD dwSize,DWORD *lpdwBytesRead)
{
DWORD dwBytesRead;
if (lpdwBytesRead == NULL)
lpdwBytesRead = &dwBytesRead;
*lpdwBytesRead = 0;
if (m_hRequest) {
bool bRead = ::InternetReadFile(
m_hRequest,
lpszBuffer,
dwSize,
lpdwBytesRead) != FALSE;
lpszBuffer[*lpdwBytesRead] = 0;
return CheckError(bRead) && *lpdwBytesRead? lpszBuffer: NULL;
}
return NULL;
}
DWORD CHTTPReader::GetDataSize ()
{
if (m_hRequest) {
DWORD dwDataSize = 0;
DWORD dwLengthDataSize = sizeof(dwDataSize);
BOOL bQuery = ::HttpQueryInfo(
m_hRequest,
HTTP_QUERY_CONTENT_LENGTH | HTTP_QUERY_FLAG_NUMBER,
&dwDataSize,
&dwLengthDataSize,
NULL);
return bQuery? dwDataSize: 0;
}
return 0;
}
char *CHTTPReader::GetData (DWORD *lpdwBytesRead)
{
DWORD dwDataSize = GetDataSize();
SetDataBuffer(dwDataSize);
return GetData(
m_lpszDataBuffer,
dwDataSize? dwDataSize: m_dwBufferSize,
lpdwBytesRead);
}
void CHTTPReader::SetDataBuffer (DWORD dwBufferSize)
{
if (dwBufferSize > m_dwBufferSize) {
delete m_lpszDataBuffer;
m_lpszDataBuffer = new char[(m_dwBufferSize = dwBufferSize) + 1];
}
} |
(
