diff options
Diffstat (limited to 'src/http.c')
| -rw-r--r-- | src/http.c | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/src/http.c b/src/http.c deleted file mode 100644 index 2c86b44..0000000 --- a/src/http.c +++ /dev/null @@ -1,481 +0,0 @@ -/*
-Copyright (c) 2015
- Michał Cichoń <thedmd@interia.pl>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include "config.h"
-#include "http.h"
-#include <Windows.h>
-#include <winhttp.h>
-#pragma comment(lib, "winhttp.lib")
-
-struct _http_t {
- HINTERNET session;
- HINTERNET connection;
- wchar_t* endpoint;
- wchar_t* securePort;
- wchar_t* autoProxy;
- wchar_t* proxy;
- wchar_t* proxyUsername;
- wchar_t* proxyPassword;
- char* error;
-};
-
-static char* HttpToString(const wchar_t* wideString, int size);
-static wchar_t* HttpToWideString(const char* string, int size);
-static bool HttpCreateConnection (http_t http);
-static void HttpCloseConnection (http_t http);
-static void HttpSetLastError (http_t http, const char* message);
-static void HttpSetLastErrorFromWinHttp (http_t http);
-static char* HttpFormatWinApiError (DWORD errorCode, HINSTANCE module);
-static char* HttpFormatWinHttpError (DWORD errorCode);
-static void HttpClearProxy (http_t http);
-
-# define WINHTTP_SAFE(condition) do { if (condition) break; HttpSetLastErrorFromWinHttp (http); return false; } while (false)
-# define WINHTTP_SAFE_DONE(condition) do { if (condition) break; HttpSetLastErrorFromWinHttp (http); goto done; } while (false)
-
-static char* HttpToString(const wchar_t* wideString, int size) {
- int utfSize = WideCharToMultiByte(CP_UTF8, 0, wideString, size, NULL, 0, NULL, NULL);
- char* utfMessage = malloc(utfSize + 1);
- if (utfMessage) {
- utfMessage[utfSize] = 0;
- WideCharToMultiByte(CP_UTF8, 0, wideString, size, utfMessage, utfSize, NULL, NULL);
- }
- return utfMessage;
-}
-
-static wchar_t* HttpToWideString(const char* string, int size) {
- int wideSize = MultiByteToWideChar(CP_UTF8, 0, string, size, NULL, 0);
- int wideBytes = (wideSize + 1) * sizeof(wchar_t);
- wchar_t* wideMessage = malloc(wideBytes);
- if (wideMessage) {
- wideMessage[wideSize] = 0;
- MultiByteToWideChar(CP_UTF8, 0, string, size, wideMessage, wideSize);
- }
- return wideMessage;
-}
-
-
-static bool HttpCreateConnection (http_t http) {
- INTERNET_PORT defaultPort = INTERNET_DEFAULT_PORT;
-
- HttpCloseConnection (http);
-
- http->session = WinHttpOpen(
- L"WinHTTP/1.0",
- WINHTTP_ACCESS_TYPE_NO_PROXY,
- WINHTTP_NO_PROXY_NAME,
- WINHTTP_NO_PROXY_BYPASS,
- 0);
- WINHTTP_SAFE(http->session != NULL);
-
- WinHttpSetTimeouts(http->session,
- 60 * 1000, // DNS time-out
- 60 * 1000, // connect time-out
- 30 * 1000, // send time-out
- 30 * 1000); // receive time-out
-
- http->connection = WinHttpConnect(
- http->session,
- http->endpoint,
- defaultPort,
- 0);
- WINHTTP_SAFE(http->connection != NULL);
-
- return true;
-}
-
-static void HttpCloseConnection (http_t http) {
- if (http->connection) {
- WinHttpCloseHandle(http->connection);
- http->connection = NULL;
- }
-
- if (http->session) {
- WinHttpCloseHandle(http->session);
- http->session = NULL;
- }
-}
-
-static void HttpSetLastError (http_t http, const char* message) {
- free(http->error);
- http->error = NULL;
-
- if (message)
- http->error = strdup(message);
-}
-
-static void HttpSetLastErrorFromWinHttp (http_t http) {
- free(http->error);
- http->error = NULL;
-
- DWORD error = GetLastError();
- if (error)
- http->error = HttpFormatWinHttpError(error);
-}
-
-static char* HttpFormatWinApiError (DWORD errorCode, HINSTANCE module) {
- const int source_flag = module ? FORMAT_MESSAGE_FROM_HMODULE : FORMAT_MESSAGE_FROM_SYSTEM;
-
- HLOCAL buffer = NULL;
- int bufferLength = FormatMessageW(
- FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | source_flag,
- (void*)module,
- errorCode,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPWSTR)&buffer,
- 0,
- NULL);
-
- if (bufferLength > 0) {
- char* message;
-
- wchar_t* wideMessage = (wchar_t*)buffer;
-
- /* Drop new line from the end. */
- wchar_t* wideMessageBack = wideMessage + bufferLength - 1;
- while (wideMessageBack > wideMessage && (*wideMessageBack == '\r' || *wideMessageBack == '\n'))
- --wideMessageBack;
-
- message = HttpToString (wideMessage, wideMessageBack - wideMessage + 1);
-
- LocalFree(buffer);
-
- return message;
- }
- else
- return NULL;
-}
-
-static char* HttpFormatWinHttpError (DWORD errorCode) {
- if (errorCode >= WINHTTP_ERROR_BASE && errorCode <= WINHTTP_ERROR_LAST) {
- HMODULE module = GetModuleHandleW(L"WinHTTP.dll");
- if (module) {
- char* message = HttpFormatWinApiError(errorCode, module);
- if (message)
- return message;
- }
- }
-
- return HttpFormatWinApiError(errorCode, NULL);
-}
-
-bool HttpInit(http_t* http, const char* endpoint, const char* securePort) {
- http_t out = malloc(sizeof(struct _http_t));
- if (!out)
- return false;
- memset(out, 0, sizeof(struct _http_t));
-
- out->endpoint = HttpToWideString(endpoint, -1);
- out->securePort = HttpToWideString(securePort, -1);
-
- if (!HttpCreateConnection (out)) {
- HttpDestroy (out);
- return false;
- }
-
- *http = out;
- return true;
-}
-
-void HttpDestroy(http_t http) {
- if (http) {
- free(http->endpoint);
- free(http->securePort);
- http->endpoint = NULL;
- http->securePort = NULL;
- HttpCloseConnection (http);
- HttpClearProxy (http);
- }
- free(http);
-}
-
-static void HttpClearProxy (http_t http) {
- if (http->autoProxy) {
- free(http->autoProxy);
- http->autoProxy = NULL;
- }
-
- if (http->proxy) {
- free(http->proxy);
- http->proxy = NULL;
- }
-
- if (http->proxyUsername) {
- free(http->proxyUsername);
- http->proxyUsername = NULL;
- }
-
- if (http->proxyPassword) {
- free(http->proxyPassword);
- http->proxyPassword = NULL;
- }
-}
-
-bool HttpSetAutoProxy (http_t http, const char* url) {
- HttpClearProxy (http);
- if (HttpSetProxy (http, url)) {
- http->autoProxy = http->proxy;
- http->proxy = NULL;
- return true;
- }
- else
- return false;
-}
-
-bool HttpSetProxy (http_t http, const char* url) {
- URL_COMPONENTS urlComponents;
- wchar_t* wideUrl = NULL;
- wchar_t* wideUrl2 = NULL;
- wchar_t* wideUsername = NULL;
- wchar_t* widePassword = NULL;
-
- ZeroMemory(&urlComponents, sizeof(urlComponents));
- urlComponents.dwStructSize = sizeof(urlComponents);
- urlComponents.dwUserNameLength = -1;
- urlComponents.dwPasswordLength = -1;
-
- wideUrl = HttpToWideString(url, -1);
- if (WinHttpCrackUrl(wideUrl, wcslen(wideUrl), 0, &urlComponents)) {
- if (urlComponents.lpszUserName && urlComponents.dwUserNameLength > 0) {
- wideUsername = wcsdup(urlComponents.lpszUserName);
- wideUsername[urlComponents.dwUserNameLength] = 0;
- }
- if (urlComponents.lpszPassword && urlComponents.dwPasswordLength > 0) {
- widePassword = wcsdup(urlComponents.lpszPassword);
- widePassword[urlComponents.dwPasswordLength] = 0;
- }
- }
-
- ZeroMemory(&urlComponents, sizeof(urlComponents));
- urlComponents.dwStructSize = sizeof(urlComponents);
- urlComponents.dwHostNameLength = -1;
- urlComponents.dwUrlPathLength = -1;
-
- if (!WinHttpCrackUrl(wideUrl, wcslen(wideUrl), 0, &urlComponents)) {
- free(wideUsername);
- free(widePassword);
- return false;
- }
-
- if (urlComponents.lpszHostName && urlComponents.dwHostNameLength > 0) {
- wideUrl2 = wcsdup(urlComponents.lpszHostName);
- wideUrl2[urlComponents.lpszUrlPath - urlComponents.lpszHostName] = 0;
- }
-
- free(wideUrl);
-
- HttpClearProxy(http);
- http->proxy = wideUrl2;
- http->proxyUsername = wideUsername;
- http->proxyPassword = widePassword;
- return true;
-}
-
-bool HttpRequest(http_t http, PianoRequest_t * const request) {
- HINTERNET handle = NULL;
- wchar_t* wideQuery = NULL;
- bool requestSent = false;
- bool complete = false;
- int retryLimit = 3;
- size_t responseDataSize;
-
- wideQuery = HttpToWideString(request->urlPath, -1);
- WINHTTP_SAFE_DONE(wideQuery != NULL);
-
- handle = WinHttpOpenRequest(
- http->connection,
- L"POST",
- wideQuery,
- L"HTTP/1.1",
- WINHTTP_NO_REFERER,
- WINHTTP_DEFAULT_ACCEPT_TYPES,
- request->secure ? WINHTTP_FLAG_SECURE : 0);
- WINHTTP_SAFE_DONE(handle != NULL);
-
- if (http->proxy || http->autoProxy) {
- wchar_t* fullUrl;
- DWORD fullUrlSize = 0;
- WINHTTP_PROXY_INFO proxyInfo;
- bool success;
-
- if (http->autoProxy) {
- WINHTTP_AUTOPROXY_OPTIONS proxyOptions = { 0 };
-
- success = WinHttpQueryOption(request, WINHTTP_OPTION_URL, NULL, &fullUrlSize);
- WINHTTP_SAFE(!success && GetLastError() == ERROR_INSUFFICIENT_BUFFER);
- fullUrl = calloc(1, fullUrlSize + 1);
- success = WinHttpQueryOption(request, WINHTTP_OPTION_URL, fullUrl, &fullUrlSize);
- if (!success) {
- free(fullUrl);
- WINHTTP_SAFE(success);
- }
-
- proxyOptions.lpszAutoConfigUrl = http->autoProxy;
- proxyOptions.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
-
- if (!(success = WinHttpGetProxyForUrl(http->session, fullUrl, &proxyOptions, &proxyInfo))) {
- proxyOptions.fAutoLogonIfChallenged = true;
- success = WinHttpGetProxyForUrl(http->session, fullUrl, &proxyOptions, &proxyInfo);
- }
-
- if (!success) {
- free(fullUrl);
- WINHTTP_SAFE(success);
- }
- }
- else {
- proxyInfo.dwAccessType = WINHTTP_ACCESS_TYPE_NAMED_PROXY;
- proxyInfo.lpszProxy = http->proxy;
- proxyInfo.lpszProxyBypass = NULL;
- }
-
- WINHTTP_SAFE(WinHttpSetOption(handle,
- WINHTTP_OPTION_PROXY,
- &proxyInfo, sizeof(proxyInfo)));
-
- if (http->proxyUsername && http->proxyPassword) {
- WINHTTP_SAFE(WinHttpSetCredentials(handle,
- WINHTTP_AUTH_TARGET_PROXY,
- WINHTTP_AUTH_SCHEME_BASIC,
- http->proxyUsername,
- http->proxyPassword,
- NULL));
- }
- }
-
- while (retryLimit > 0) {
- DWORD errorCode, statusCode, statusCodeSize;
- bool succeeded = false;
- bool retry = false;
-
- if (!requestSent) {
- size_t postDataSize = strlen(request->postData);
- succeeded = WinHttpSendRequest(handle,
- WINHTTP_NO_ADDITIONAL_HEADERS,
- 0,
- request->postData,
- postDataSize,
- postDataSize,
- 0);
-
- if (succeeded)
- requestSent = true;
- }
-
- if (requestSent)
- succeeded = WinHttpReceiveResponse(handle, NULL);
-
- errorCode = GetLastError();
-
- statusCode = 0;
- statusCodeSize = sizeof(statusCode);
- if (!WinHttpQueryHeaders(handle,
- WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER,
- WINHTTP_HEADER_NAME_BY_INDEX,
- &statusCode, &statusCodeSize, WINHTTP_NO_HEADER_INDEX)) {
- statusCode = 0;
- }
-
- if (succeeded && statusCode == 407) {
- requestSent = false;
- retry = true;
- }
- else {
- if (errorCode == ERROR_SUCCESS)
- break;
-
- switch (errorCode) {
- case ERROR_WINHTTP_RESEND_REQUEST:
- requestSent = false;
- /* pass trough */
-
- case ERROR_WINHTTP_NAME_NOT_RESOLVED:
- case ERROR_WINHTTP_CANNOT_CONNECT:
- case ERROR_WINHTTP_TIMEOUT:
- retry = true;
- break;
-
- default:
- HttpSetLastErrorFromWinHttp (http);
- goto done;
- }
- }
-
- if (retry)
- --retryLimit;
- }
-
- responseDataSize = 0;
- while (retryLimit > 0)
- {
- DWORD bytesLeft;
- char* writePtr;
-
- DWORD bytesAvailable = 0;
- if (!WinHttpQueryDataAvailable(handle, &bytesAvailable)) {
- WINHTTP_SAFE(GetLastError() == ERROR_WINHTTP_TIMEOUT);
- --retryLimit;
- continue;
- }
-
- if (0 == bytesAvailable)
- break;
-
- responseDataSize += bytesAvailable;
- request->responseData = realloc(request->responseData, responseDataSize + 1);
-
- writePtr = request->responseData + responseDataSize - bytesAvailable;
- writePtr[bytesAvailable] = 0;
-
- bytesLeft = bytesAvailable;
- while (bytesLeft > 0)
- {
- DWORD bytesRead = 0;
- if (!WinHttpReadData(handle, writePtr, bytesLeft, &bytesRead))
- {
- WINHTTP_SAFE(GetLastError() == ERROR_WINHTTP_TIMEOUT);
- if (--retryLimit == 0)
- break;
-
- continue;
- }
-
- bytesLeft -= bytesRead;
- writePtr += bytesRead;
- }
-
- if (bytesLeft > 0)
- HttpSetLastError (http, "Maximum retries count exceeded");
- }
-
- complete = true;
-
- HttpSetLastError (http, NULL);
-
-done:
- free(wideQuery);
- return complete;
-}
-
-const char* HttpGetError(http_t http) {
- return http->error;
-}
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