C++封装的HTTP和HTTPS的接口

记录下http和https的post方法在C++中实现

来源无从考究了，这里记录一下

http 的post 方法

BOOL HttpPostToBusinessServer(LPCTSTR serverAddr, std::string urlParam, std::string &strHttpContent, LPDWORD statusCode);

BOOL HttpPostToBusinessServer(LPCTSTR serverAddr, std::string urlParam, std::string & strHttpContent, LPDWORD statusCode)
{URL_COMPONENTS  urlComponents;ZeroMemory(&urlComponents, sizeof(urlComponents));urlComponents.dwStructSize = sizeof(urlComponents);TCHAR hostName[256];urlComponents.lpszHostName = hostName;urlComponents.dwHostNameLength = 256;TCHAR path[1024];urlComponents.lpszUrlPath = path;urlComponents.dwUrlPathLength = 1024;if (WinHttpCrackUrl(serverAddr, lstrlen(serverAddr), 0, &urlComponents) == FALSE){return FALSE;}HINTERNET hSession = NULL;HINTERNET hConnect = NULL;HINTERNET hRequest = NULL;BOOL bResults = FALSE;std::wstring httpHeader;std::wstring strUserIDParam;hSession = WinHttpOpen(NULL, WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0);if (!hSession){goto failure;}hConnect = WinHttpConnect(hSession, urlComponents.lpszHostName, urlComponents.nPort, 0);if (!hConnect){goto failure;}strUserIDParam = urlComponents.lpszUrlPath;hRequest = WinHttpOpenRequest(hConnect, L"POST", strUserIDParam.c_str(), L"HTTP/1.1", WINHTTP_NO_REFERER, WINHTTP_DEFAULT_ACCEPT_TYPES, WINHTTP_FLAG_REFRESH);if (!hRequest){goto failure;}httpHeader = L"Content-type: application/json";WinHttpAddRequestHeaders(hRequest, httpHeader.c_str(), DWORD(httpHeader.length()), WINHTTP_ADDREQ_FLAG_ADD);if (!hRequest){goto failure;}const void *ss = (const char *)urlParam.c_str();bResults = WinHttpSendRequest(hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0, const_cast<void *>(ss), urlParam.length(), urlParam.length(), 0);if (bResults){bResults = WinHttpReceiveResponse(hRequest, NULL);}else{goto failure;}DWORD statusCodeSize = sizeof(DWORD);bResults = WinHttpQueryHeaders(hRequest, WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER, WINHTTP_HEADER_NAME_BY_INDEX, statusCode, &statusCodeSize, WINHTTP_NO_HEADER_INDEX);if (!bResults){goto failure;}strHttpContent.clear();if (bResults){DWORD dwSize = 0;DWORD dwDownloaded = 0;LPSTR pszOutBuffer;DWORD dwReadBytes = 0;do{dwSize = 0;if (!WinHttpQueryDataAvailable(hRequest, &dwSize))goto failure;pszOutBuffer = new char[dwSize + 1];if (!pszOutBuffer){dwSize = 0;}else{ZeroMemory(pszOutBuffer, dwSize + 1);if (!WinHttpReadData(hRequest, (LPVOID)pszOutBuffer, dwSize, &dwDownloaded)){goto failure;}strHttpContent += pszOutBuffer;delete[] pszOutBuffer;}} while (dwSize > 0);}if (strHttpContent.empty()){goto failure;}else{if (hSession)WinHttpCloseHandle(hSession);if (hConnect)WinHttpCloseHandle(hConnect);if (hRequest)WinHttpCloseHandle(hRequest);return TRUE;}failure:if (hSession)WinHttpCloseHandle(hSession);if (hConnect)WinHttpCloseHandle(hConnect);if (hRequest)WinHttpCloseHandle(hRequest);return FALSE;
}

https 的 post方法

BOOL HttpsPostToBusinessServer(LPCTSTR serverAddr, std::string urlParam, std::string & strHttpContent, LPDWORD statusCode)
{URL_COMPONENTS  urlComponents;ZeroMemory(&urlComponents, sizeof(urlComponents));urlComponents.dwStructSize = sizeof(urlComponents);TCHAR hostName[256];urlComponents.lpszHostName = hostName;urlComponents.dwHostNameLength = 256;TCHAR path[1024];urlComponents.lpszUrlPath = path;urlComponents.dwUrlPathLength = 1024;if (WinHttpCrackUrl(serverAddr, lstrlen(serverAddr), 0, &urlComponents) == FALSE){return FALSE;}HINTERNET hSession = NULL;HINTERNET hConnect = NULL;HINTERNET hRequest = NULL;BOOL bResults = FALSE;std::wstring httpHeader;std::wstring strUserIDParam;hSession = WinHttpOpen(NULL, WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0);if (!hSession){goto failure;}hConnect = WinHttpConnect(hSession, urlComponents.lpszHostName, urlComponents.nPort, 0);if (!hConnect){goto failure;}strUserIDParam = urlComponents.lpszUrlPath;hRequest = WinHttpOpenRequest(hConnect, L"POST", strUserIDParam.c_str(), L"HTTP/1.1", WINHTTP_NO_REFERER, WINHTTP_DEFAULT_ACCEPT_TYPES, WINHTTP_FLAG_SECURE | WINHTTP_FLAG_REFRESH);if (!hRequest){goto failure;}DWORD dwFlags;DWORD dwBuffLen = sizeof(dwFlags);WinHttpQueryOption(hRequest, WINHTTP_OPTION_SECURITY_FLAGS,(LPVOID)&dwFlags, &dwBuffLen);dwFlags |= SECURITY_FLAG_IGNORE_UNKNOWN_CA;dwFlags |= SECURITY_FLAG_IGNORE_CERT_DATE_INVALID;dwFlags |= SECURITY_FLAG_IGNORE_CERT_CN_INVALID;WinHttpSetOption(hRequest, WINHTTP_OPTION_SECURITY_FLAGS, &dwFlags, sizeof(dwFlags));httpHeader = L"Content-type: application/json";WinHttpAddRequestHeaders(hRequest, httpHeader.c_str(), DWORD(httpHeader.length()), WINHTTP_ADDREQ_FLAG_ADD);if (!hRequest){goto failure;}const void *ss = (const char *)urlParam.c_str();bResults = WinHttpSendRequest(hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0, const_cast<void *>(ss), urlParam.length(), urlParam.length(), 0);if (bResults){bResults = WinHttpReceiveResponse(hRequest, NULL);}else{goto failure;}DWORD statusCodeSize = sizeof(DWORD);bResults = WinHttpQueryHeaders(hRequest, WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER, WINHTTP_HEADER_NAME_BY_INDEX, statusCode, &statusCodeSize, WINHTTP_NO_HEADER_INDEX);if (!bResults){goto failure;}strHttpContent.clear();if (bResults){DWORD dwSize = 0;DWORD dwDownloaded = 0;LPSTR pszOutBuffer;DWORD dwReadBytes = 0;do{dwSize = 0;if (!WinHttpQueryDataAvailable(hRequest, &dwSize))goto failure;pszOutBuffer = new char[dwSize + 1];if (!pszOutBuffer){dwSize = 0;}else{ZeroMemory(pszOutBuffer, dwSize + 1);if (!WinHttpReadData(hRequest, (LPVOID)pszOutBuffer, dwSize, &dwDownloaded)){goto failure;}strHttpContent += pszOutBuffer;delete[] pszOutBuffer;}} while (dwSize > 0);}if (strHttpContent.empty()){goto failure;}else{if (hSession)WinHttpCloseHandle(hSession);if (hConnect)WinHttpCloseHandle(hConnect);if (hRequest)WinHttpCloseHandle(hRequest);return TRUE;}failure:if (hSession)WinHttpCloseHandle(hSession);if (hConnect)WinHttpCloseHandle(hConnect);if (hRequest)WinHttpCloseHandle(hRequest);return FALSE;
}

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