我有一个代码向服务器发出请求，但我正在尝试从响应中设置Cookie。 （以防万一，我正在向BurningBoard登录做请求）
这里有我的代码：
HttpsWebRequestPost("example.com", "/api.php?action=UserLogin", "loginUsername=" + USERNAME + "&loginPassword=" + PASSWORD + "&url=/index.php?page=Portal");
和
#pragma once
#include <Windows.h>
#include <WinHttp.h>
#include <stdio.h>
#include <iostream> //getchar
#include <fstream>
#pragma comment(lib, "winhttp.lib")
using namespace std;
std::wstring get_utf16(const std::string &str, int codepage)
{
if (str.empty()) return std::wstring();
int sz = MultiByteToWideChar(codepage, 0, &str[0], (int)str.size(), 0, 0);
std::wstring res(sz, 0);
MultiByteToWideChar(codepage, 0, &str[0], (int)str.size(), &res[0], sz);
return res;
}
string HttpsWebRequestPost(string domain, string url, string dat)
{
//Extra
LPSTR data = const_cast<char *>(dat.c_str());;
DWORD data_len = strlen(data);
wstring sdomain = get_utf16(domain, CP_UTF8);
wstring surl = get_utf16(url, CP_UTF8);
string response;
DWORD dwSize = 0;
DWORD dwDownloaded = 0;
LPSTR pszOutBuffer;
BOOL bResults = FALSE;
HINTERNET hSession = NULL,
hConnect = NULL,
hRequest = NULL;
// Use WinHttpOpen to obtain a session handle.
hSession = WinHttpOpen(L"WinHTTP Example/1.0",
WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS, 0);
// Specify an HTTP server.
if (hSession)
hConnect = WinHttpConnect(hSession, sdomain.c_str(),
INTERNET_DEFAULT_HTTP_PORT, 0);
// Create an HTTP request handle.
if (hConnect)
hRequest = WinHttpOpenRequest(hConnect, L"POST", surl.c_str(),
NULL, WINHTTP_NO_REFERER,
WINHTTP_DEFAULT_ACCEPT_TYPES,
0);
LPCWSTR additionalHeaders = L"Content-Type: application/x-www-form-urlencoded\r\n";
DWORD headersLength = -1;
// Send a request.
if (hRequest)
bResults = WinHttpSendRequest(hRequest,
additionalHeaders, headersLength,
(LPVOID)data, data_len,
data_len, 0);
// End the request.
if (bResults)
bResults = WinHttpReceiveResponse(hRequest, NULL);
// Keep checking for data until there is nothing left.
if (bResults)
{
do
{
// Check for available data.
dwSize = 0;
if (!WinHttpQueryDataAvailable(hRequest, &dwSize))
printf("Error %u in WinHttpQueryDataAvailable.\n",
GetLastError());
// Allocate space for the buffer.
pszOutBuffer = new char[dwSize + 1];
if (!pszOutBuffer)
{
printf("Out of memory\n");
dwSize = 0;
}
else
{
// Read the data.
ZeroMemory(pszOutBuffer, dwSize + 1);
if (!WinHttpReadData(hRequest, (LPVOID)pszOutBuffer,
dwSize, &dwDownloaded))
printf("Error %u in WinHttpReadData.\n", GetLastError());
else
//printf("%s", pszOutBuffer);
response = response + string(pszOutBuffer);
// Free the memory allocated to the buffer.
delete[] pszOutBuffer;
}
} while (dwSize > 0);
}
// Report any errors.
if (!bResults)
printf("Error %d has occurred.\n", GetLastError());
// Close any open handles.
if (hRequest) WinHttpCloseHandle(hRequest);
if (hConnect) WinHttpCloseHandle(hConnect);
if (hSession) WinHttpCloseHandle(hSession);
return response;
}
最后，这是我在WireShark中得到的回应：
Hypertext Transfer Protocol
HTTP/1.1 200 OK\r\n
Request Version: HTTP/1.1
Status Code: 200
Response Phrase: OK
Date: Sat, 30 Jul 2016 11:55:02 GMT\r\n
Server: Apache\r\n
Set-Cookie: wcf_cookieHash=*******hash******; HttpOnly\r\n
Set-Cookie: wcf_boardLastActivityTime=1469879702; expires=Sun, 30-Jul-2017 11:55:02 GMT; HttpOnly\r\n
Cache-Control: max-age=0, private\r\n
Expires: Sat, 30 Jul 2016 11:55:02 GMT\r\n
Vary: Accept-Encoding\r\n
Connection: close\r\n
Transfer-Encoding: chunked\r\n
Content-Type: text/html; charset=UTF-8\r\n
\r\n
有人可以帮我添加cookies吗？ 感谢
现在我很难从标题中获取数据，我只得到第一个“H”。
string HttpsWebRequestPost(string domain, string url, string dat)
{
//Extra
LPSTR data = const_cast<char *>(dat.c_str());;
DWORD data_len = strlen(data);
wstring sdomain = get_utf16(domain, CP_UTF8);
wstring surl = get_utf16(url, CP_UTF8);
string response;
DWORD dwSize = 0;
DWORD dwDownloaded = 0;
LPSTR pszOutBuffer;
BOOL bResults = FALSE;
HINTERNET hSession = NULL,
hConnect = NULL,
hRequest = NULL;
// Use WinHttpOpen to obtain a session handle.
hSession = WinHttpOpen(L"WinHTTP Example/1.0",
WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS, 0);
// Specify an HTTP server.
if (hSession)
hConnect = WinHttpConnect(hSession, sdomain.c_str(),
INTERNET_DEFAULT_HTTP_PORT, 0);
// Create an HTTP request handle.
if (hConnect)
hRequest = WinHttpOpenRequest(hConnect, L"POST", surl.c_str(),
NULL, WINHTTP_NO_REFERER,
WINHTTP_DEFAULT_ACCEPT_TYPES,
0);
LPCWSTR additionalHeaders = L"Content-Type: application/x-www-form-urlencoded\r\n";
DWORD headersLength = -1;
// Send a request.
if (hRequest)
bResults = WinHttpSendRequest(hRequest,
additionalHeaders, headersLength,
(LPVOID)data, data_len,
data_len, 0);
// End the request.
if (bResults)
bResults = WinHttpReceiveResponse(hRequest, NULL);
// First, use WinHttpQueryHeaders to obtain the size of the buffer.
if (bResults)
{
do
{
dwSize = 0;
if (!WinHttpQueryDataAvailable(hRequest, &dwSize))
printf("Error %u in WinHttpQueryDataAvailable.\n",
GetLastError());
WinHttpQueryHeaders(hRequest, WINHTTP_QUERY_RAW_HEADERS_CRLF,
WINHTTP_HEADER_NAME_BY_INDEX, NULL,
&dwSize, WINHTTP_NO_HEADER_INDEX);
// Allocate space for the buffer.
pszOutBuffer = new char[dwSize + 1];
if (!pszOutBuffer)
{
printf("Out of memory\n");
dwSize = 0;
}
else
{
// Read the data.
ZeroMemory(pszOutBuffer, dwSize + 1);
bResults = WinHttpQueryHeaders(hRequest,
WINHTTP_QUERY_RAW_HEADERS_CRLF,
WINHTTP_HEADER_NAME_BY_INDEX,
(LPVOID)pszOutBuffer, &dwSize,
WINHTTP_NO_HEADER_INDEX);
//printf("%s", pszOutBuffer);
response = response + string(pszOutBuffer);
// Free the memory allocated to the buffer.
delete[] pszOutBuffer;
}
} while (dwSize > 0);
}
// Free the allocated memory.
//delete[] pszOutBuffer;
// Report any errors.
if (!bResults)
printf("Error %d has occurred.\n", GetLastError());
// Close any open handles.
if (hRequest) WinHttpCloseHandle(hRequest);
if (hConnect) WinHttpCloseHandle(hConnect);
if (hSession) WinHttpCloseHandle(hSession);
return response;
}
答案 0 :(得分：1)
如果您在同一会话中提出所有请求，Cookie应自动生效。调用WinHttpOpen一次，在所有请求中使用该会话句柄。这是维护cookie jar的会话。