Merge commit 'c992cb4e42cc223f67ede0e48d7ff3f4947af0c6' as 'test/compatibility/C/uWebSockets'
This commit is contained in:
Benjamin Sergeant
348
test/compatibility/C/uWebSockets/src/App.h
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348
test/compatibility/C/uWebSockets/src/App.h
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/*
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* Authored by Alex Hultman, 2018-2019.
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* Intellectual property of third-party.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef UWS_APP_H
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#define UWS_APP_H
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/* An app is a convenience wrapper of some of the most used fuctionalities and allows a
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* builder-pattern kind of init. Apps operate on the implicit thread local Loop */
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#include "HttpContext.h"
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#include "HttpResponse.h"
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#include "WebSocketContext.h"
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#include "WebSocket.h"
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#include "WebSocketExtensions.h"
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#include "WebSocketHandshake.h"
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namespace uWS {
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/* Compress options (really more like PerMessageDeflateOptions) */
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enum CompressOptions {
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/* Compression disabled */
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DISABLED = 0,
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/* We compress using a shared non-sliding window. No added memory usage, worse compression. */
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SHARED_COMPRESSOR = 1,
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/* We compress using a dedicated sliding window. Major memory usage added, better compression of similarly repeated messages. */
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DEDICATED_COMPRESSOR = 2
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};
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template <bool SSL>
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struct TemplatedApp {
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private:
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/* The app always owns at least one http context, but creates websocket contexts on demand */
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HttpContext<SSL> *httpContext;
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std::vector<WebSocketContext<SSL, true> *> webSocketContexts;
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public:
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/* Attaches a "filter" function to track socket connections/disconnections */
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void filter(fu2::unique_function<void(HttpResponse<SSL> *, int)> &&filterHandler) {
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httpContext->filter(std::move(filterHandler));
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}
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/* Publishes a message to all websocket contexts */
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void publish(std::string_view topic, std::string_view message, OpCode opCode, bool compress = false) {
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for (auto *webSocketContext : webSocketContexts) {
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webSocketContext->getExt()->publish(topic, message, opCode, compress);
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}
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}
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~TemplatedApp() {
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/* Let's just put everything here */
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if (httpContext) {
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httpContext->free();
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for (auto *webSocketContext : webSocketContexts) {
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webSocketContext->free();
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}
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}
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}
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/* Disallow copying, only move */
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TemplatedApp(const TemplatedApp &other) = delete;
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TemplatedApp(TemplatedApp &&other) {
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/* Move HttpContext */
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httpContext = other.httpContext;
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other.httpContext = nullptr;
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/* Move webSocketContexts */
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webSocketContexts = std::move(other.webSocketContexts);
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}
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TemplatedApp(us_socket_context_options_t options = {}) {
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httpContext = uWS::HttpContext<SSL>::create(uWS::Loop::get(), options);
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}
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bool constructorFailed() {
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return !httpContext;
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}
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struct WebSocketBehavior {
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CompressOptions compression = DISABLED;
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int maxPayloadLength = 16 * 1024;
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int idleTimeout = 120;
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int maxBackpressure = 1 * 1024 * 1204;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *, HttpRequest *)> open = nullptr;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *, std::string_view, uWS::OpCode)> message = nullptr;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *)> drain = nullptr;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *)> ping = nullptr;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *)> pong = nullptr;
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fu2::unique_function<void(uWS::WebSocket<SSL, true> *, int, std::string_view)> close = nullptr;
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};
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template <typename UserData>
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TemplatedApp &&ws(std::string pattern, WebSocketBehavior &&behavior) {
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/* Don't compile if alignment rules cannot be satisfied */
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static_assert(alignof(UserData) <= LIBUS_EXT_ALIGNMENT,
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"µWebSockets cannot satisfy UserData alignment requirements. You need to recompile µSockets with LIBUS_EXT_ALIGNMENT adjusted accordingly.");
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/* Every route has its own websocket context with its own behavior and user data type */
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auto *webSocketContext = WebSocketContext<SSL, true>::create(Loop::get(), (us_socket_context_t *) httpContext);
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/* We need to clear this later on */
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webSocketContexts.push_back(webSocketContext);
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/* Quick fix to disable any compression if set */
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#ifdef UWS_NO_ZLIB
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behavior.compression = uWS::DISABLED;
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#endif
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/* If we are the first one to use compression, initialize it */
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if (behavior.compression) {
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LoopData *loopData = (LoopData *) us_loop_ext(us_socket_context_loop(SSL, webSocketContext->getSocketContext()));
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/* Initialize loop's deflate inflate streams */
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if (!loopData->zlibContext) {
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loopData->zlibContext = new ZlibContext;
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loopData->inflationStream = new InflationStream;
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loopData->deflationStream = new DeflationStream;
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}
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}
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/* Copy all handlers */
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webSocketContext->getExt()->messageHandler = std::move(behavior.message);
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webSocketContext->getExt()->drainHandler = std::move(behavior.drain);
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webSocketContext->getExt()->closeHandler = std::move([closeHandler = std::move(behavior.close)](WebSocket<SSL, true> *ws, int code, std::string_view message) mutable {
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closeHandler(ws, code, message);
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/* Destruct user data after returning from close handler */
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((UserData *) ws->getUserData())->~UserData();
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});
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/* Copy settings */
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webSocketContext->getExt()->maxPayloadLength = behavior.maxPayloadLength;
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webSocketContext->getExt()->idleTimeout = behavior.idleTimeout;
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webSocketContext->getExt()->maxBackpressure = behavior.maxBackpressure;
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httpContext->onHttp("get", pattern, [webSocketContext, httpContext = this->httpContext, behavior = std::move(behavior)](auto *res, auto *req) mutable {
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/* If we have this header set, it's a websocket */
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std::string_view secWebSocketKey = req->getHeader("sec-websocket-key");
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if (secWebSocketKey.length() == 24) {
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/* Note: OpenSSL can be used here to speed this up somewhat */
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char secWebSocketAccept[29] = {};
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WebSocketHandshake::generate(secWebSocketKey.data(), secWebSocketAccept);
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res->writeStatus("101 Switching Protocols")
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->writeHeader("Upgrade", "websocket")
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->writeHeader("Connection", "Upgrade")
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->writeHeader("Sec-WebSocket-Accept", secWebSocketAccept);
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/* Select first subprotocol if present */
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std::string_view secWebSocketProtocol = req->getHeader("sec-websocket-protocol");
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if (secWebSocketProtocol.length()) {
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res->writeHeader("Sec-WebSocket-Protocol", secWebSocketProtocol.substr(0, secWebSocketProtocol.find(',')));
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}
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/* Negotiate compression */
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bool perMessageDeflate = false;
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bool slidingDeflateWindow = false;
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if (behavior.compression != DISABLED) {
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std::string_view extensions = req->getHeader("sec-websocket-extensions");
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if (extensions.length()) {
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/* We never support client context takeover (the client cannot compress with a sliding window). */
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int wantedOptions = PERMESSAGE_DEFLATE | CLIENT_NO_CONTEXT_TAKEOVER;
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/* Shared compressor is the default */
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if (behavior.compression == SHARED_COMPRESSOR) {
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/* Disable per-socket compressor */
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wantedOptions |= SERVER_NO_CONTEXT_TAKEOVER;
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}
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/* isServer = true */
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ExtensionsNegotiator<true> extensionsNegotiator(wantedOptions);
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extensionsNegotiator.readOffer(extensions);
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/* Todo: remove these mid string copies */
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std::string offer = extensionsNegotiator.generateOffer();
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if (offer.length()) {
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res->writeHeader("Sec-WebSocket-Extensions", offer);
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}
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/* Did we negotiate permessage-deflate? */
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if (extensionsNegotiator.getNegotiatedOptions() & PERMESSAGE_DEFLATE) {
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perMessageDeflate = true;
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}
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/* Is the server allowed to compress with a sliding window? */
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if (!(extensionsNegotiator.getNegotiatedOptions() & SERVER_NO_CONTEXT_TAKEOVER)) {
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slidingDeflateWindow = true;
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}
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}
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}
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/* This will add our mark */
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res->upgrade();
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/* Move any backpressure */
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std::string backpressure(std::move(((AsyncSocketData<SSL> *) res->getHttpResponseData())->buffer));
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/* Keep any fallback buffer alive until we returned from open event, keeping req valid */
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std::string fallback(std::move(res->getHttpResponseData()->salvageFallbackBuffer()));
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/* Destroy HttpResponseData */
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res->getHttpResponseData()->~HttpResponseData();
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/* Adopting a socket invalidates it, do not rely on it directly to carry any data */
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WebSocket<SSL, true> *webSocket = (WebSocket<SSL, true> *) us_socket_context_adopt_socket(SSL,
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(us_socket_context_t *) webSocketContext, (us_socket_t *) res, sizeof(WebSocketData) + sizeof(UserData));
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/* Update corked socket in case we got a new one (assuming we always are corked in handlers). */
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webSocket->AsyncSocket<SSL>::cork();
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/* Initialize websocket with any moved backpressure intact */
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httpContext->upgradeToWebSocket(
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webSocket->init(perMessageDeflate, slidingDeflateWindow, std::move(backpressure))
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);
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/* Emit open event and start the timeout */
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if (behavior.open) {
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us_socket_timeout(SSL, (us_socket_t *) webSocket, behavior.idleTimeout);
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/* Default construct the UserData right before calling open handler */
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new (webSocket->getUserData()) UserData;
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behavior.open(webSocket, req);
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}
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/* We are going to get uncorked by the Http get return */
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/* We do not need to check for any close or shutdown here as we immediately return from get handler */
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} else {
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/* Tell the router that we did not handle this request */
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req->setYield(true);
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}
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}, true);
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return std::move(*this);
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}
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TemplatedApp &&get(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("get", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&post(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("post", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&options(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("options", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&del(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("delete", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&patch(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("patch", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&put(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("put", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&head(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("head", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&connect(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("connect", pattern, std::move(handler));
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return std::move(*this);
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}
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TemplatedApp &&trace(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("trace", pattern, std::move(handler));
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return std::move(*this);
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}
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/* This one catches any method */
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TemplatedApp &&any(std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler) {
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httpContext->onHttp("*", pattern, std::move(handler));
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return std::move(*this);
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}
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/* Host, port, callback */
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TemplatedApp &&listen(std::string host, int port, fu2::unique_function<void(us_listen_socket_t *)> &&handler) {
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if (!host.length()) {
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return listen(port, std::move(handler));
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}
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handler(httpContext->listen(host.c_str(), port, 0));
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return std::move(*this);
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}
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/* Host, port, options, callback */
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TemplatedApp &&listen(std::string host, int port, int options, fu2::unique_function<void(us_listen_socket_t *)> &&handler) {
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if (!host.length()) {
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return listen(port, options, std::move(handler));
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}
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handler(httpContext->listen(host.c_str(), port, options));
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return std::move(*this);
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}
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/* Port, callback */
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TemplatedApp &&listen(int port, fu2::unique_function<void(us_listen_socket_t *)> &&handler) {
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handler(httpContext->listen(nullptr, port, 0));
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return std::move(*this);
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}
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/* Port, options, callback */
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TemplatedApp &&listen(int port, int options, fu2::unique_function<void(us_listen_socket_t *)> &&handler) {
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handler(httpContext->listen(nullptr, port, options));
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return std::move(*this);
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}
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TemplatedApp &&run() {
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uWS::run();
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return std::move(*this);
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}
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};
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typedef TemplatedApp<false> App;
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typedef TemplatedApp<true> SSLApp;
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}
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#endif // UWS_APP_H
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228
test/compatibility/C/uWebSockets/src/AsyncSocket.h
Normal file
228
test/compatibility/C/uWebSockets/src/AsyncSocket.h
Normal file
@@ -0,0 +1,228 @@
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/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
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#ifndef UWS_ASYNCSOCKET_H
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#define UWS_ASYNCSOCKET_H
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/* This class implements async socket memory management strategies */
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#include "LoopData.h"
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#include "AsyncSocketData.h"
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||||
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namespace uWS {
|
||||
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||||
template <bool, bool> struct WebSocketContext;
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template <bool SSL>
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struct AsyncSocket {
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template <bool> friend struct HttpContext;
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template <bool, bool> friend struct WebSocketContext;
|
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template <bool> friend struct WebSocketContextData;
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friend struct TopicTree;
|
||||
|
||||
protected:
|
||||
/* Get loop data for socket */
|
||||
LoopData *getLoopData() {
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return (LoopData *) us_loop_ext(us_socket_context_loop(SSL, us_socket_context(SSL, (us_socket_t *) this)));
|
||||
}
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||||
|
||||
/* Get socket extension */
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||||
AsyncSocketData<SSL> *getAsyncSocketData() {
|
||||
return (AsyncSocketData<SSL> *) us_socket_ext(SSL, (us_socket_t *) this);
|
||||
}
|
||||
|
||||
/* Socket timeout */
|
||||
void timeout(unsigned int seconds) {
|
||||
us_socket_timeout(SSL, (us_socket_t *) this, seconds);
|
||||
}
|
||||
|
||||
/* Shutdown socket without any automatic drainage */
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||||
void shutdown() {
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||||
us_socket_shutdown(SSL, (us_socket_t *) this);
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||||
}
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||||
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||||
/* Immediately close socket */
|
||||
us_socket_t *close() {
|
||||
return us_socket_close(SSL, (us_socket_t *) this);
|
||||
}
|
||||
|
||||
/* Cork this socket. Only one socket may ever be corked per-loop at any given time */
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||||
void cork() {
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||||
/* What if another socket is corked? */
|
||||
getLoopData()->corkedSocket = this;
|
||||
}
|
||||
|
||||
/* Returns wheter we are corked or not */
|
||||
bool isCorked() {
|
||||
return getLoopData()->corkedSocket == this;
|
||||
}
|
||||
|
||||
/* Returns whether we could cork (it is free) */
|
||||
bool canCork() {
|
||||
return getLoopData()->corkedSocket == nullptr;
|
||||
}
|
||||
|
||||
/* Returns a suitable buffer for temporary assemblation of send data */
|
||||
std::pair<char *, bool> getSendBuffer(size_t size) {
|
||||
/* If we are corked and we have room, return the cork buffer itself */
|
||||
LoopData *loopData = getLoopData();
|
||||
if (loopData->corkedSocket == this && loopData->corkOffset + size < LoopData::CORK_BUFFER_SIZE) {
|
||||
char *sendBuffer = loopData->corkBuffer + loopData->corkOffset;
|
||||
loopData->corkOffset += (int) size;
|
||||
return {sendBuffer, false};
|
||||
} else {
|
||||
/* Slow path for now, we want to always be corked if possible */
|
||||
return {(char *) malloc(size), true};
|
||||
}
|
||||
}
|
||||
|
||||
/* Returns the user space backpressure. */
|
||||
int getBufferedAmount() {
|
||||
return (int) getAsyncSocketData()->buffer.size();
|
||||
}
|
||||
|
||||
/* Returns the remote IP address or empty string on failure */
|
||||
std::string_view getRemoteAddress() {
|
||||
static thread_local char buf[16];
|
||||
int ipLength = 16;
|
||||
us_socket_remote_address(SSL, (us_socket_t *) this, buf, &ipLength);
|
||||
return std::string_view(buf, ipLength);
|
||||
}
|
||||
|
||||
/* Write in three levels of prioritization: cork-buffer, syscall, socket-buffer. Always drain if possible.
|
||||
* Returns pair of bytes written (anywhere) and wheter or not this call resulted in the polling for
|
||||
* writable (or we are in a state that implies polling for writable). */
|
||||
std::pair<int, bool> write(const char *src, int length, bool optionally = false, int nextLength = 0) {
|
||||
/* Fake success if closed, simple fix to allow uncork of closed socket to succeed */
|
||||
if (us_socket_is_closed(SSL, (us_socket_t *) this)) {
|
||||
return {length, false};
|
||||
}
|
||||
|
||||
LoopData *loopData = getLoopData();
|
||||
AsyncSocketData<SSL> *asyncSocketData = getAsyncSocketData();
|
||||
|
||||
/* We are limited if we have a per-socket buffer */
|
||||
if (asyncSocketData->buffer.length()) {
|
||||
/* Write off as much as we can */
|
||||
int written = us_socket_write(SSL, (us_socket_t *) this, asyncSocketData->buffer.data(), (int) asyncSocketData->buffer.length(), /*nextLength != 0 | */length);
|
||||
|
||||
/* On failure return, otherwise continue down the function */
|
||||
if ((unsigned int) written < asyncSocketData->buffer.length()) {
|
||||
|
||||
/* Update buffering (todo: we can do better here if we keep track of what happens to this guy later on) */
|
||||
asyncSocketData->buffer = asyncSocketData->buffer.substr(written);
|
||||
|
||||
if (optionally) {
|
||||
/* Thankfully we can exit early here */
|
||||
return {0, true};
|
||||
} else {
|
||||
/* This path is horrible and points towards erroneous usage */
|
||||
asyncSocketData->buffer.append(src, length);
|
||||
|
||||
return {length, true};
|
||||
}
|
||||
}
|
||||
|
||||
/* At this point we simply have no buffer and can continue as normal */
|
||||
asyncSocketData->buffer.clear();
|
||||
}
|
||||
|
||||
if (length) {
|
||||
if (loopData->corkedSocket == this) {
|
||||
/* We are corked */
|
||||
if (LoopData::CORK_BUFFER_SIZE - loopData->corkOffset >= length) {
|
||||
/* If the entire chunk fits in cork buffer */
|
||||
memcpy(loopData->corkBuffer + loopData->corkOffset, src, length);
|
||||
loopData->corkOffset += length;
|
||||
/* Fall through to default return */
|
||||
} else {
|
||||
/* Strategy differences between SSL and non-SSL regarding syscall minimizing */
|
||||
if constexpr (SSL) {
|
||||
/* Cork up as much as we can */
|
||||
int stripped = LoopData::CORK_BUFFER_SIZE - loopData->corkOffset;
|
||||
memcpy(loopData->corkBuffer + loopData->corkOffset, src, stripped);
|
||||
loopData->corkOffset = LoopData::CORK_BUFFER_SIZE;
|
||||
|
||||
auto [written, failed] = uncork(src + stripped, length - stripped, optionally);
|
||||
return {written + stripped, failed};
|
||||
}
|
||||
|
||||
/* For non-SSL we take the penalty of two syscalls */
|
||||
return uncork(src, length, optionally);
|
||||
}
|
||||
} else {
|
||||
/* We are not corked */
|
||||
int written = us_socket_write(SSL, (us_socket_t *) this, src, length, nextLength != 0);
|
||||
|
||||
/* Did we fail? */
|
||||
if (written < length) {
|
||||
/* If the write was optional then just bail out */
|
||||
if (optionally) {
|
||||
return {written, true};
|
||||
}
|
||||
|
||||
/* Fall back to worst possible case (should be very rare for HTTP) */
|
||||
/* At least we can reserve room for next chunk if we know it up front */
|
||||
if (nextLength) {
|
||||
asyncSocketData->buffer.reserve(asyncSocketData->buffer.length() + length - written + nextLength);
|
||||
}
|
||||
|
||||
/* Buffer this chunk */
|
||||
asyncSocketData->buffer.append(src + written, length - written);
|
||||
|
||||
/* Return the failure */
|
||||
return {length, true};
|
||||
}
|
||||
/* Fall through to default return */
|
||||
}
|
||||
}
|
||||
|
||||
/* Default fall through return */
|
||||
return {length, false};
|
||||
}
|
||||
|
||||
/* Uncork this socket and flush or buffer any corked and/or passed data. It is essential to remember doing this. */
|
||||
/* It does NOT count bytes written from cork buffer (they are already accounted for in the write call responsible for its corking)! */
|
||||
std::pair<int, bool> uncork(const char *src = nullptr, int length = 0, bool optionally = false) {
|
||||
LoopData *loopData = getLoopData();
|
||||
|
||||
if (loopData->corkedSocket == this) {
|
||||
loopData->corkedSocket = nullptr;
|
||||
|
||||
if (loopData->corkOffset) {
|
||||
/* Corked data is already accounted for via its write call */
|
||||
auto [written, failed] = write(loopData->corkBuffer, loopData->corkOffset, false, length);
|
||||
loopData->corkOffset = 0;
|
||||
|
||||
if (failed) {
|
||||
/* We do not need to care for buffering here, write does that */
|
||||
return {0, true};
|
||||
}
|
||||
}
|
||||
|
||||
/* We should only return with new writes, not things written to cork already */
|
||||
return write(src, length, optionally, 0);
|
||||
} else {
|
||||
/* We are not even corked! */
|
||||
return {0, false};
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_ASYNCSOCKET_H
|
||||
43
test/compatibility/C/uWebSockets/src/AsyncSocketData.h
Normal file
43
test/compatibility/C/uWebSockets/src/AsyncSocketData.h
Normal file
@@ -0,0 +1,43 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_ASYNCSOCKETDATA_H
|
||||
#define UWS_ASYNCSOCKETDATA_H
|
||||
|
||||
#include <string>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
/* Depending on how we want AsyncSocket to function, this will need to change */
|
||||
|
||||
template <bool SSL>
|
||||
struct AsyncSocketData {
|
||||
/* This will do for now */
|
||||
std::string buffer;
|
||||
|
||||
/* Allow move constructing us */
|
||||
AsyncSocketData(std::string &&backpressure) : buffer(std::move(backpressure)) {
|
||||
|
||||
}
|
||||
|
||||
/* Or emppty */
|
||||
AsyncSocketData() = default;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_ASYNCSOCKETDATA_H
|
||||
384
test/compatibility/C/uWebSockets/src/HttpContext.h
Normal file
384
test/compatibility/C/uWebSockets/src/HttpContext.h
Normal file
@@ -0,0 +1,384 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPCONTEXT_H
|
||||
#define UWS_HTTPCONTEXT_H
|
||||
|
||||
/* This class defines the main behavior of HTTP and emits various events */
|
||||
|
||||
#include "Loop.h"
|
||||
#include "HttpContextData.h"
|
||||
#include "HttpResponseData.h"
|
||||
#include "AsyncSocket.h"
|
||||
|
||||
#include <string_view>
|
||||
#include <iostream>
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
template<bool> struct HttpResponse;
|
||||
|
||||
template <bool SSL>
|
||||
struct HttpContext {
|
||||
template<bool> friend struct TemplatedApp;
|
||||
private:
|
||||
HttpContext() = delete;
|
||||
|
||||
/* Maximum delay allowed until an HTTP connection is terminated due to outstanding request or rejected data (slow loris protection) */
|
||||
static const int HTTP_IDLE_TIMEOUT_S = 10;
|
||||
|
||||
us_socket_context_t *getSocketContext() {
|
||||
return (us_socket_context_t *) this;
|
||||
}
|
||||
|
||||
static us_socket_context_t *getSocketContext(us_socket_t *s) {
|
||||
return (us_socket_context_t *) us_socket_context(SSL, s);
|
||||
}
|
||||
|
||||
HttpContextData<SSL> *getSocketContextData() {
|
||||
return (HttpContextData<SSL> *) us_socket_context_ext(SSL, getSocketContext());
|
||||
}
|
||||
|
||||
static HttpContextData<SSL> *getSocketContextDataS(us_socket_t *s) {
|
||||
return (HttpContextData<SSL> *) us_socket_context_ext(SSL, getSocketContext(s));
|
||||
}
|
||||
|
||||
/* Init the HttpContext by registering libusockets event handlers */
|
||||
HttpContext<SSL> *init() {
|
||||
/* Handle socket connections */
|
||||
us_socket_context_on_open(SSL, getSocketContext(), [](us_socket_t *s, int is_client, char *ip, int ip_length) {
|
||||
/* Any connected socket should timeout until it has a request */
|
||||
us_socket_timeout(SSL, s, HTTP_IDLE_TIMEOUT_S);
|
||||
|
||||
/* Init socket ext */
|
||||
new (us_socket_ext(SSL, s)) HttpResponseData<SSL>;
|
||||
|
||||
/* Call filter */
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextDataS(s);
|
||||
for (auto &f : httpContextData->filterHandlers) {
|
||||
f((HttpResponse<SSL> *) s, 1);
|
||||
}
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle socket disconnections */
|
||||
us_socket_context_on_close(SSL, getSocketContext(), [](us_socket_t *s) {
|
||||
/* Get socket ext */
|
||||
HttpResponseData<SSL> *httpResponseData = (HttpResponseData<SSL> *) us_socket_ext(SSL, s);
|
||||
|
||||
/* Call filter */
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextDataS(s);
|
||||
for (auto &f : httpContextData->filterHandlers) {
|
||||
f((HttpResponse<SSL> *) s, -1);
|
||||
}
|
||||
|
||||
/* Signal broken HTTP request only if we have a pending request */
|
||||
if (httpResponseData->onAborted) {
|
||||
httpResponseData->onAborted();
|
||||
}
|
||||
|
||||
/* Destruct socket ext */
|
||||
httpResponseData->~HttpResponseData<SSL>();
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle HTTP data streams */
|
||||
us_socket_context_on_data(SSL, getSocketContext(), [](us_socket_t *s, char *data, int length) {
|
||||
|
||||
// total overhead is about 210k down to 180k
|
||||
// ~210k req/sec is the original perf with write in data
|
||||
// ~200k req/sec is with cork and formatting
|
||||
// ~190k req/sec is with http parsing
|
||||
// ~180k - 190k req/sec is with varying routing
|
||||
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextDataS(s);
|
||||
|
||||
/* Do not accept any data while in shutdown state */
|
||||
if (us_socket_is_shut_down(SSL, (us_socket_t *) s)) {
|
||||
return s;
|
||||
}
|
||||
|
||||
HttpResponseData<SSL> *httpResponseData = (HttpResponseData<SSL> *) us_socket_ext(SSL, s);
|
||||
|
||||
/* Cork this socket */
|
||||
((AsyncSocket<SSL> *) s)->cork();
|
||||
|
||||
// clients need to know the cursor after http parse, not servers!
|
||||
// how far did we read then? we need to know to continue with websocket parsing data? or?
|
||||
|
||||
/* The return value is entirely up to us to interpret. The HttpParser only care for whether the returned value is DIFFERENT or not from passed user */
|
||||
void *returnedSocket = httpResponseData->consumePostPadded(data, length, s, [httpContextData](void *s, uWS::HttpRequest *httpRequest) -> void * {
|
||||
/* For every request we reset the timeout and hang until user makes action */
|
||||
/* Warning: if we are in shutdown state, resetting the timer is a security issue! */
|
||||
us_socket_timeout(SSL, (us_socket_t *) s, 0);
|
||||
|
||||
/* Reset httpResponse */
|
||||
HttpResponseData<SSL> *httpResponseData = (HttpResponseData<SSL> *) us_socket_ext(SSL, (us_socket_t *) s);
|
||||
httpResponseData->offset = 0;
|
||||
|
||||
/* Are we not ready for another request yet? Terminate the connection. */
|
||||
if (httpResponseData->state & HttpResponseData<SSL>::HTTP_RESPONSE_PENDING) {
|
||||
us_socket_close(SSL, (us_socket_t *) s);
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* Mark pending request and emit it */
|
||||
httpResponseData->state = HttpResponseData<SSL>::HTTP_RESPONSE_PENDING;
|
||||
|
||||
/* Route the method and URL */
|
||||
httpContextData->router.getUserData() = {(HttpResponse<SSL> *) s, httpRequest};
|
||||
if (!httpContextData->router.route(httpRequest->getMethod(), httpRequest->getUrl())) {
|
||||
/* We have to force close this socket as we have no handler for it */
|
||||
us_socket_close(SSL, (us_socket_t *) s);
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* First of all we need to check if this socket was deleted due to upgrade */
|
||||
if (httpContextData->upgradedWebSocket) {
|
||||
/* We differ between closed and upgraded below */
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* Was the socket closed? */
|
||||
if (us_socket_is_closed(SSL, (struct us_socket_t *) s)) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* We absolutely have to terminate parsing if shutdown */
|
||||
if (us_socket_is_shut_down(SSL, (us_socket_t *) s)) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* Returning from a request handler without responding or attaching an onAborted handler is ill-use */
|
||||
if (!((HttpResponse<SSL> *) s)->hasResponded() && !httpResponseData->onAborted) {
|
||||
/* Throw exception here? */
|
||||
std::cerr << "Error: Returning from a request handler without responding or attaching an abort handler is forbidden!" << std::endl;
|
||||
std::terminate();
|
||||
}
|
||||
|
||||
/* If we have not responded and we have a data handler, we need to timeout to enfore client sending the data */
|
||||
if (!((HttpResponse<SSL> *) s)->hasResponded() && httpResponseData->inStream) {
|
||||
us_socket_timeout(SSL, (us_socket_t *) s, HTTP_IDLE_TIMEOUT_S);
|
||||
}
|
||||
|
||||
/* Continue parsing */
|
||||
return s;
|
||||
|
||||
}, [httpResponseData](void *user, std::string_view data, bool fin) -> void * {
|
||||
/* We always get an empty chunk even if there is no data */
|
||||
if (httpResponseData->inStream) {
|
||||
|
||||
/* Todo: can this handle timeout for non-post as well? */
|
||||
if (fin) {
|
||||
/* If we just got the last chunk (or empty chunk), disable timeout */
|
||||
us_socket_timeout(SSL, (struct us_socket_t *) user, 0);
|
||||
} else {
|
||||
/* We still have some more data coming in later, so reset timeout */
|
||||
us_socket_timeout(SSL, (struct us_socket_t *) user, HTTP_IDLE_TIMEOUT_S);
|
||||
}
|
||||
|
||||
/* We might respond in the handler, so do not change timeout after this */
|
||||
httpResponseData->inStream(data, fin);
|
||||
|
||||
/* Was the socket closed? */
|
||||
if (us_socket_is_closed(SSL, (struct us_socket_t *) user)) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* We absolutely have to terminate parsing if shutdown */
|
||||
if (us_socket_is_shut_down(SSL, (us_socket_t *) user)) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* If we were given the last data chunk, reset data handler to ensure following
|
||||
* requests on the same socket won't trigger any previously registered behavior */
|
||||
if (fin) {
|
||||
httpResponseData->inStream = nullptr;
|
||||
}
|
||||
}
|
||||
return user;
|
||||
}, [](void *user) {
|
||||
/* Close any socket on HTTP errors */
|
||||
us_socket_close(SSL, (us_socket_t *) user);
|
||||
return nullptr;
|
||||
});
|
||||
|
||||
/* We need to uncork in all cases, except for nullptr (closed socket, or upgraded socket) */
|
||||
if (returnedSocket != nullptr) {
|
||||
/* Timeout on uncork failure */
|
||||
auto [written, failed] = ((AsyncSocket<SSL> *) returnedSocket)->uncork();
|
||||
if (failed) {
|
||||
/* All Http sockets timeout by this, and this behavior match the one in HttpResponse::cork */
|
||||
/* Warning: both HTTP_IDLE_TIMEOUT_S and HTTP_TIMEOUT_S are 10 seconds and both are used the same */
|
||||
((AsyncSocket<SSL> *) s)->timeout(HTTP_IDLE_TIMEOUT_S);
|
||||
}
|
||||
|
||||
return (us_socket_t *) returnedSocket;
|
||||
}
|
||||
|
||||
/* If we upgraded, check here (differ between nullptr close and nullptr upgrade) */
|
||||
if (httpContextData->upgradedWebSocket) {
|
||||
/* This path is only for upgraded websockets */
|
||||
AsyncSocket<SSL> *asyncSocket = (AsyncSocket<SSL> *) httpContextData->upgradedWebSocket;
|
||||
|
||||
/* Uncork here as well (note: what if we failed to uncork and we then pub/sub before we even upgraded?) */
|
||||
/*auto [written, failed] = */asyncSocket->uncork();
|
||||
|
||||
/* Reset upgradedWebSocket before we return */
|
||||
httpContextData->upgradedWebSocket = nullptr;
|
||||
|
||||
/* Return the new upgraded websocket */
|
||||
return (us_socket_t *) asyncSocket;
|
||||
}
|
||||
|
||||
/* It is okay to uncork a closed socket and we need to */
|
||||
((AsyncSocket<SSL> *) s)->uncork();
|
||||
|
||||
/* We cannot return nullptr to the underlying stack in any case */
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle HTTP write out (note: SSL_read may trigger this spuriously, the app need to handle spurious calls) */
|
||||
us_socket_context_on_writable(SSL, getSocketContext(), [](us_socket_t *s) {
|
||||
|
||||
AsyncSocket<SSL> *asyncSocket = (AsyncSocket<SSL> *) s;
|
||||
HttpResponseData<SSL> *httpResponseData = (HttpResponseData<SSL> *) asyncSocket->getAsyncSocketData();
|
||||
|
||||
/* Ask the developer to write data and return success (true) or failure (false), OR skip sending anything and return success (true). */
|
||||
if (httpResponseData->onWritable) {
|
||||
/* We are now writable, so hang timeout again, the user does not have to do anything so we should hang until end or tryEnd rearms timeout */
|
||||
us_socket_timeout(SSL, s, 0);
|
||||
|
||||
/* We expect the developer to return whether or not write was successful (true).
|
||||
* If write was never called, the developer should still return true so that we may drain. */
|
||||
bool success = httpResponseData->onWritable(httpResponseData->offset);
|
||||
|
||||
/* The developer indicated that their onWritable failed. */
|
||||
if (!success) {
|
||||
/* Skip testing if we can drain anything since that might perform an extra syscall */
|
||||
return s;
|
||||
}
|
||||
|
||||
/* We don't want to fall through since we don't want to mess with timeout.
|
||||
* It makes little sense to drain any backpressure when the user has registered onWritable. */
|
||||
return s;
|
||||
}
|
||||
|
||||
/* Drain any socket buffer, this might empty our backpressure and thus finish the request */
|
||||
/*auto [written, failed] = */asyncSocket->write(nullptr, 0, true, 0);
|
||||
|
||||
/* Expect another writable event, or another request within the timeout */
|
||||
asyncSocket->timeout(HTTP_IDLE_TIMEOUT_S);
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle FIN, HTTP does not support half-closed sockets, so simply close */
|
||||
us_socket_context_on_end(SSL, getSocketContext(), [](us_socket_t *s) {
|
||||
|
||||
/* We do not care for half closed sockets */
|
||||
AsyncSocket<SSL> *asyncSocket = (AsyncSocket<SSL> *) s;
|
||||
return asyncSocket->close();
|
||||
|
||||
});
|
||||
|
||||
/* Handle socket timeouts, simply close them so to not confuse client with FIN */
|
||||
us_socket_context_on_timeout(SSL, getSocketContext(), [](us_socket_t *s) {
|
||||
|
||||
/* Force close rather than gracefully shutdown and risk confusing the client with a complete download */
|
||||
AsyncSocket<SSL> *asyncSocket = (AsyncSocket<SSL> *) s;
|
||||
return asyncSocket->close();
|
||||
|
||||
});
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Used by App in its WebSocket handler */
|
||||
void upgradeToWebSocket(void *newSocket) {
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextData();
|
||||
|
||||
httpContextData->upgradedWebSocket = newSocket;
|
||||
}
|
||||
|
||||
public:
|
||||
/* Construct a new HttpContext using specified loop */
|
||||
static HttpContext *create(Loop *loop, us_socket_context_options_t options = {}) {
|
||||
HttpContext *httpContext;
|
||||
|
||||
httpContext = (HttpContext *) us_create_socket_context(SSL, (us_loop_t *) loop, sizeof(HttpContextData<SSL>), options);
|
||||
|
||||
if (!httpContext) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* Init socket context data */
|
||||
new ((HttpContextData<SSL> *) us_socket_context_ext(SSL, (us_socket_context_t *) httpContext)) HttpContextData<SSL>();
|
||||
return httpContext->init();
|
||||
}
|
||||
|
||||
/* Destruct the HttpContext, it does not follow RAII */
|
||||
void free() {
|
||||
/* Destruct socket context data */
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextData();
|
||||
httpContextData->~HttpContextData<SSL>();
|
||||
|
||||
/* Free the socket context in whole */
|
||||
us_socket_context_free(SSL, getSocketContext());
|
||||
}
|
||||
|
||||
void filter(fu2::unique_function<void(HttpResponse<SSL> *, int)> &&filterHandler) {
|
||||
getSocketContextData()->filterHandlers.emplace_back(std::move(filterHandler));
|
||||
}
|
||||
|
||||
/* Register an HTTP route handler acording to URL pattern */
|
||||
void onHttp(std::string method, std::string pattern, fu2::unique_function<void(HttpResponse<SSL> *, HttpRequest *)> &&handler, bool upgrade = false) {
|
||||
HttpContextData<SSL> *httpContextData = getSocketContextData();
|
||||
|
||||
/* Todo: This is ugly, fix */
|
||||
std::vector<std::string> methods;
|
||||
if (method == "*") {
|
||||
methods = httpContextData->router.methods;
|
||||
} else {
|
||||
methods = {method};
|
||||
}
|
||||
|
||||
httpContextData->router.add(methods, pattern, [handler = std::move(handler)](auto *r) mutable {
|
||||
auto user = r->getUserData();
|
||||
user.httpRequest->setYield(false);
|
||||
user.httpRequest->setParameters(r->getParameters());
|
||||
handler(user.httpResponse, user.httpRequest);
|
||||
|
||||
/* If any handler yielded, the router will keep looking for a suitable handler. */
|
||||
if (user.httpRequest->getYield()) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}, method == "*" ? httpContextData->router.LOW_PRIORITY : (upgrade ? httpContextData->router.HIGH_PRIORITY : httpContextData->router.MEDIUM_PRIORITY));
|
||||
}
|
||||
|
||||
/* Listen to port using this HttpContext */
|
||||
us_listen_socket_t *listen(const char *host, int port, int options) {
|
||||
return us_socket_context_listen(SSL, getSocketContext(), host, port, options, sizeof(HttpResponseData<SSL>));
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPCONTEXT_H
|
||||
48
test/compatibility/C/uWebSockets/src/HttpContextData.h
Normal file
48
test/compatibility/C/uWebSockets/src/HttpContextData.h
Normal file
@@ -0,0 +1,48 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPCONTEXTDATA_H
|
||||
#define UWS_HTTPCONTEXTDATA_H
|
||||
|
||||
#include "HttpRouter.h"
|
||||
|
||||
#include <vector>
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
template<bool> struct HttpResponse;
|
||||
struct HttpRequest;
|
||||
|
||||
template <bool SSL>
|
||||
struct alignas(16) HttpContextData {
|
||||
template <bool> friend struct HttpContext;
|
||||
template <bool> friend struct HttpResponse;
|
||||
private:
|
||||
std::vector<fu2::unique_function<void(HttpResponse<SSL> *, int)>> filterHandlers;
|
||||
|
||||
struct RouterData {
|
||||
HttpResponse<SSL> *httpResponse;
|
||||
HttpRequest *httpRequest;
|
||||
};
|
||||
|
||||
HttpRouter<RouterData> router;
|
||||
void *upgradedWebSocket = nullptr;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPCONTEXTDATA_H
|
||||
334
test/compatibility/C/uWebSockets/src/HttpParser.h
Normal file
334
test/compatibility/C/uWebSockets/src/HttpParser.h
Normal file
@@ -0,0 +1,334 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPPARSER_H
|
||||
#define UWS_HTTPPARSER_H
|
||||
|
||||
// todo: HttpParser is in need of a few clean-ups and refactorings
|
||||
|
||||
/* The HTTP parser is an independent module subject to unit testing / fuzz testing */
|
||||
|
||||
#include <string>
|
||||
#include <cstring>
|
||||
#include <algorithm>
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
/* We require at least this much post padding */
|
||||
static const int MINIMUM_HTTP_POST_PADDING = 32;
|
||||
|
||||
struct HttpRequest {
|
||||
|
||||
friend struct HttpParser;
|
||||
|
||||
private:
|
||||
const static int MAX_HEADERS = 50;
|
||||
struct Header {
|
||||
std::string_view key, value;
|
||||
} headers[MAX_HEADERS];
|
||||
int querySeparator;
|
||||
bool didYield;
|
||||
|
||||
std::pair<int, std::string_view *> currentParameters;
|
||||
|
||||
public:
|
||||
bool getYield() {
|
||||
return didYield;
|
||||
}
|
||||
|
||||
/* Iteration over headers (key, value) */
|
||||
struct HeaderIterator {
|
||||
Header *ptr;
|
||||
|
||||
bool operator!=(const HeaderIterator &other) const {
|
||||
/* Comparison with end is a special case */
|
||||
if (ptr != other.ptr) {
|
||||
return other.ptr || ptr->key.length();
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
HeaderIterator &operator++() {
|
||||
ptr++;
|
||||
return *this;
|
||||
}
|
||||
|
||||
std::pair<std::string_view, std::string_view> operator*() const {
|
||||
return {ptr->key, ptr->value};
|
||||
}
|
||||
};
|
||||
|
||||
HeaderIterator begin() {
|
||||
return {headers + 1};
|
||||
}
|
||||
|
||||
HeaderIterator end() {
|
||||
return {nullptr};
|
||||
}
|
||||
|
||||
/* If you do not want to handle this route */
|
||||
void setYield(bool yield) {
|
||||
didYield = yield;
|
||||
}
|
||||
|
||||
std::string_view getHeader(std::string_view lowerCasedHeader) {
|
||||
for (Header *h = headers; (++h)->key.length(); ) {
|
||||
if (h->key.length() == lowerCasedHeader.length() && !strncmp(h->key.data(), lowerCasedHeader.data(), lowerCasedHeader.length())) {
|
||||
return h->value;
|
||||
}
|
||||
}
|
||||
return std::string_view(nullptr, 0);
|
||||
}
|
||||
|
||||
std::string_view getUrl() {
|
||||
return std::string_view(headers->value.data(), querySeparator);
|
||||
}
|
||||
|
||||
std::string_view getMethod() {
|
||||
return std::string_view(headers->key.data(), headers->key.length());
|
||||
}
|
||||
|
||||
std::string_view getQuery() {
|
||||
if (querySeparator < (int) headers->value.length()) {
|
||||
/* Strip the initial ? */
|
||||
return std::string_view(headers->value.data() + querySeparator + 1, headers->value.length() - querySeparator - 1);
|
||||
} else {
|
||||
return std::string_view(nullptr, 0);
|
||||
}
|
||||
}
|
||||
|
||||
void setParameters(std::pair<int, std::string_view *> parameters) {
|
||||
currentParameters = parameters;
|
||||
}
|
||||
|
||||
std::string_view getParameter(unsigned int index) {
|
||||
if (currentParameters.first < (int) index) {
|
||||
return {};
|
||||
} else {
|
||||
return currentParameters.second[index];
|
||||
}
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
struct HttpParser {
|
||||
|
||||
private:
|
||||
std::string fallback;
|
||||
unsigned int remainingStreamingBytes = 0;
|
||||
|
||||
const size_t MAX_FALLBACK_SIZE = 1024 * 4;
|
||||
|
||||
static unsigned int toUnsignedInteger(std::string_view str) {
|
||||
unsigned int unsignedIntegerValue = 0;
|
||||
for (unsigned char c : str) {
|
||||
unsignedIntegerValue = unsignedIntegerValue * 10 + (c - '0');
|
||||
}
|
||||
return unsignedIntegerValue;
|
||||
}
|
||||
|
||||
static unsigned int getHeaders(char *postPaddedBuffer, char *end, struct HttpRequest::Header *headers) {
|
||||
char *preliminaryKey, *preliminaryValue, *start = postPaddedBuffer;
|
||||
|
||||
for (unsigned int i = 0; i < HttpRequest::MAX_HEADERS; i++) {
|
||||
for (preliminaryKey = postPaddedBuffer; (*postPaddedBuffer != ':') & (*postPaddedBuffer > 32); *(postPaddedBuffer++) |= 32);
|
||||
if (*postPaddedBuffer == '\r') {
|
||||
if ((postPaddedBuffer != end) & (postPaddedBuffer[1] == '\n') & (i > 0)) {
|
||||
headers->key = std::string_view(nullptr, 0);
|
||||
return (unsigned int) ((postPaddedBuffer + 2) - start);
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
} else {
|
||||
headers->key = std::string_view(preliminaryKey, (size_t) (postPaddedBuffer - preliminaryKey));
|
||||
for (postPaddedBuffer++; (*postPaddedBuffer == ':' || *postPaddedBuffer < 33) && *postPaddedBuffer != '\r'; postPaddedBuffer++);
|
||||
preliminaryValue = postPaddedBuffer;
|
||||
postPaddedBuffer = (char *) memchr(postPaddedBuffer, '\r', end - postPaddedBuffer);
|
||||
if (postPaddedBuffer && postPaddedBuffer[1] == '\n') {
|
||||
headers->value = std::string_view(preliminaryValue, (size_t) (postPaddedBuffer - preliminaryValue));
|
||||
postPaddedBuffer += 2;
|
||||
headers++;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
// the only caller of getHeaders
|
||||
template <int CONSUME_MINIMALLY>
|
||||
std::pair<int, void *> fenceAndConsumePostPadded(char *data, int length, void *user, HttpRequest *req, fu2::unique_function<void *(void *, HttpRequest *)> &requestHandler, fu2::unique_function<void *(void *, std::string_view, bool)> &dataHandler) {
|
||||
int consumedTotal = 0;
|
||||
data[length] = '\r';
|
||||
|
||||
for (int consumed; length && (consumed = getHeaders(data, data + length, req->headers)); ) {
|
||||
data += consumed;
|
||||
length -= consumed;
|
||||
consumedTotal += consumed;
|
||||
|
||||
req->headers->value = std::string_view(req->headers->value.data(), std::max<int>(0, (int) req->headers->value.length() - 9));
|
||||
|
||||
/* Parse query */
|
||||
const char *querySeparatorPtr = (const char *) memchr(req->headers->value.data(), '?', req->headers->value.length());
|
||||
req->querySeparator = (int) ((querySeparatorPtr ? querySeparatorPtr : req->headers->value.data() + req->headers->value.length()) - req->headers->value.data());
|
||||
|
||||
/* If returned socket is not what we put in we need
|
||||
* to break here as we either have upgraded to
|
||||
* WebSockets or otherwise closed the socket. */
|
||||
void *returnedUser = requestHandler(user, req);
|
||||
if (returnedUser != user) {
|
||||
/* We are upgraded to WebSocket or otherwise broken */
|
||||
return {consumedTotal, returnedUser};
|
||||
}
|
||||
|
||||
// todo: do not check this for GET (get should not have a body)
|
||||
// todo: also support reading chunked streams
|
||||
std::string_view contentLengthString = req->getHeader("content-length");
|
||||
if (contentLengthString.length()) {
|
||||
remainingStreamingBytes = toUnsignedInteger(contentLengthString);
|
||||
|
||||
if (!CONSUME_MINIMALLY) {
|
||||
unsigned int emittable = std::min<unsigned int>(remainingStreamingBytes, length);
|
||||
dataHandler(user, std::string_view(data, emittable), emittable == remainingStreamingBytes);
|
||||
remainingStreamingBytes -= emittable;
|
||||
|
||||
data += emittable;
|
||||
length -= emittable;
|
||||
consumedTotal += emittable;
|
||||
}
|
||||
} else {
|
||||
/* Still emit an empty data chunk to signal no data */
|
||||
dataHandler(user, {}, true);
|
||||
}
|
||||
|
||||
if (CONSUME_MINIMALLY) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
return {consumedTotal, user};
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
/* We do this to prolong the validity of parsed headers by keeping only the fallback buffer alive */
|
||||
std::string &&salvageFallbackBuffer() {
|
||||
return std::move(fallback);
|
||||
}
|
||||
|
||||
void *consumePostPadded(char *data, int length, void *user, fu2::unique_function<void *(void *, HttpRequest *)> &&requestHandler, fu2::unique_function<void *(void *, std::string_view, bool)> &&dataHandler, fu2::unique_function<void *(void *)> &&errorHandler) {
|
||||
|
||||
HttpRequest req;
|
||||
|
||||
if (remainingStreamingBytes) {
|
||||
|
||||
// this is exactly the same as below!
|
||||
// todo: refactor this
|
||||
if (remainingStreamingBytes >= (unsigned int) length) {
|
||||
void *returnedUser = dataHandler(user, std::string_view(data, length), remainingStreamingBytes == (unsigned int) length);
|
||||
remainingStreamingBytes -= length;
|
||||
return returnedUser;
|
||||
} else {
|
||||
void *returnedUser = dataHandler(user, std::string_view(data, remainingStreamingBytes), true);
|
||||
|
||||
data += remainingStreamingBytes;
|
||||
length -= remainingStreamingBytes;
|
||||
|
||||
remainingStreamingBytes = 0;
|
||||
|
||||
if (returnedUser != user) {
|
||||
return returnedUser;
|
||||
}
|
||||
}
|
||||
|
||||
} else if (fallback.length()) {
|
||||
int had = (int) fallback.length();
|
||||
|
||||
int maxCopyDistance = (int) std::min(MAX_FALLBACK_SIZE - fallback.length(), (size_t) length);
|
||||
|
||||
/* We don't want fallback to be short string optimized, since we want to move it */
|
||||
fallback.reserve(fallback.length() + maxCopyDistance + std::max<int>(MINIMUM_HTTP_POST_PADDING, sizeof(std::string)));
|
||||
fallback.append(data, maxCopyDistance);
|
||||
|
||||
// break here on break
|
||||
std::pair<int, void *> consumed = fenceAndConsumePostPadded<true>(fallback.data(), (int) fallback.length(), user, &req, requestHandler, dataHandler);
|
||||
if (consumed.second != user) {
|
||||
return consumed.second;
|
||||
}
|
||||
|
||||
if (consumed.first) {
|
||||
|
||||
fallback.clear();
|
||||
|
||||
data += consumed.first - had;
|
||||
length -= consumed.first - had;
|
||||
|
||||
if (remainingStreamingBytes) {
|
||||
// this is exactly the same as above!
|
||||
if (remainingStreamingBytes >= (unsigned int) length) {
|
||||
void *returnedUser = dataHandler(user, std::string_view(data, length), remainingStreamingBytes == (unsigned int) length);
|
||||
remainingStreamingBytes -= length;
|
||||
return returnedUser;
|
||||
} else {
|
||||
void *returnedUser = dataHandler(user, std::string_view(data, remainingStreamingBytes), true);
|
||||
|
||||
data += remainingStreamingBytes;
|
||||
length -= remainingStreamingBytes;
|
||||
|
||||
remainingStreamingBytes = 0;
|
||||
|
||||
if (returnedUser != user) {
|
||||
return returnedUser;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
} else {
|
||||
if (fallback.length() == MAX_FALLBACK_SIZE) {
|
||||
// note: you don't really need error handler, just return something strange!
|
||||
// we could have it return a constant pointer to denote error!
|
||||
return errorHandler(user);
|
||||
}
|
||||
return user;
|
||||
}
|
||||
}
|
||||
|
||||
std::pair<int, void *> consumed = fenceAndConsumePostPadded<false>(data, length, user, &req, requestHandler, dataHandler);
|
||||
if (consumed.second != user) {
|
||||
return consumed.second;
|
||||
}
|
||||
|
||||
data += consumed.first;
|
||||
length -= consumed.first;
|
||||
|
||||
if (length) {
|
||||
if ((unsigned int) length < MAX_FALLBACK_SIZE) {
|
||||
fallback.append(data, length);
|
||||
} else {
|
||||
return errorHandler(user);
|
||||
}
|
||||
}
|
||||
|
||||
// added for now
|
||||
return user;
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPPARSER_H
|
||||
317
test/compatibility/C/uWebSockets/src/HttpResponse.h
Normal file
317
test/compatibility/C/uWebSockets/src/HttpResponse.h
Normal file
@@ -0,0 +1,317 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPRESPONSE_H
|
||||
#define UWS_HTTPRESPONSE_H
|
||||
|
||||
/* An HttpResponse is the channel on which you send back a response */
|
||||
|
||||
#include "AsyncSocket.h"
|
||||
#include "HttpResponseData.h"
|
||||
#include "HttpContextData.h"
|
||||
#include "Utilities.h"
|
||||
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
/* todo: tryWrite is missing currently, only send smaller segments with write */
|
||||
|
||||
namespace uWS {
|
||||
|
||||
/* Some pre-defined status constants to use with writeStatus */
|
||||
static const char *HTTP_200_OK = "200 OK";
|
||||
|
||||
/* The general timeout for HTTP sockets */
|
||||
static const int HTTP_TIMEOUT_S = 10;
|
||||
|
||||
template <bool SSL>
|
||||
struct HttpResponse : public AsyncSocket<SSL> {
|
||||
/* Solely used for getHttpResponseData() */
|
||||
template <bool> friend struct TemplatedApp;
|
||||
typedef AsyncSocket<SSL> Super;
|
||||
private:
|
||||
HttpResponseData<SSL> *getHttpResponseData() {
|
||||
return (HttpResponseData<SSL> *) Super::getAsyncSocketData();
|
||||
}
|
||||
|
||||
/* Write an unsigned 32-bit integer in hex */
|
||||
void writeUnsignedHex(unsigned int value) {
|
||||
char buf[10];
|
||||
int length = utils::u32toaHex(value, buf);
|
||||
|
||||
/* For now we do this copy */
|
||||
Super::write(buf, length);
|
||||
}
|
||||
|
||||
/* Write an unsigned 32-bit integer */
|
||||
void writeUnsigned(unsigned int value) {
|
||||
char buf[10];
|
||||
int length = utils::u32toa(value, buf);
|
||||
|
||||
/* For now we do this copy */
|
||||
Super::write(buf, length);
|
||||
}
|
||||
|
||||
/* When we are done with a response we mark it like so */
|
||||
void markDone(HttpResponseData<SSL> *httpResponseData) {
|
||||
httpResponseData->onAborted = nullptr;
|
||||
/* Also remove onWritable so that we do not emit when draining behind the scenes. */
|
||||
httpResponseData->onWritable = nullptr;
|
||||
|
||||
/* We are done with this request */
|
||||
httpResponseData->state &= ~HttpResponseData<SSL>::HTTP_RESPONSE_PENDING;
|
||||
}
|
||||
|
||||
/* Called only once per request */
|
||||
void writeMark() {
|
||||
writeHeader("uWebSockets", "v0.17");
|
||||
}
|
||||
|
||||
/* Returns true on success, indicating that it might be feasible to write more data.
|
||||
* Will start timeout if stream reaches totalSize or write failure. */
|
||||
bool internalEnd(std::string_view data, int totalSize, bool optional, bool allowContentLength = true) {
|
||||
/* Write status if not already done */
|
||||
writeStatus(HTTP_200_OK);
|
||||
|
||||
/* If no total size given then assume this chunk is everything */
|
||||
if (!totalSize) {
|
||||
totalSize = (int) data.length();
|
||||
}
|
||||
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
if (httpResponseData->state & HttpResponseData<SSL>::HTTP_WRITE_CALLED) {
|
||||
|
||||
/* We do not have tryWrite-like functionalities, so ignore optional in this path */
|
||||
|
||||
/* Do not allow sending 0 chunk here */
|
||||
if (data.length()) {
|
||||
Super::write("\r\n", 2);
|
||||
writeUnsignedHex((unsigned int) data.length());
|
||||
Super::write("\r\n", 2);
|
||||
|
||||
/* Ignoring optional for now */
|
||||
Super::write(data.data(), (int) data.length());
|
||||
}
|
||||
|
||||
/* Terminating 0 chunk */
|
||||
Super::write("\r\n0\r\n\r\n", 7);
|
||||
|
||||
markDone(httpResponseData);
|
||||
|
||||
/* tryEnd can never fail when in chunked mode, since we do not have tryWrite (yet), only write */
|
||||
Super::timeout(HTTP_TIMEOUT_S);
|
||||
return true;
|
||||
} else {
|
||||
/* Write content-length on first call */
|
||||
if (!(httpResponseData->state & HttpResponseData<SSL>::HTTP_END_CALLED)) {
|
||||
/* Write mark, this propagates to WebSockets too */
|
||||
writeMark();
|
||||
|
||||
/* WebSocket upgrades does not allow content-length */
|
||||
if (allowContentLength) {
|
||||
/* Even zero is a valid content-length */
|
||||
Super::write("Content-Length: ", 16);
|
||||
writeUnsigned(totalSize);
|
||||
Super::write("\r\n\r\n", 4);
|
||||
} else {
|
||||
Super::write("\r\n", 2);
|
||||
}
|
||||
|
||||
/* Mark end called */
|
||||
httpResponseData->state |= HttpResponseData<SSL>::HTTP_END_CALLED;
|
||||
}
|
||||
|
||||
/* Even if we supply no new data to write, its failed boolean is useful to know
|
||||
* if it failed to drain any prior failed header writes */
|
||||
|
||||
/* Write as much as possible without causing backpressure */
|
||||
auto [written, failed] = Super::write(data.data(), (int) data.length(), optional);
|
||||
httpResponseData->offset += written;
|
||||
|
||||
/* Success is when we wrote the entire thing without any failures */
|
||||
bool success = (unsigned int) written == data.length() && !failed;
|
||||
|
||||
/* If we are now at the end, start a timeout. Also start a timeout if we failed. */
|
||||
if (!success || httpResponseData->offset == totalSize) {
|
||||
Super::timeout(HTTP_TIMEOUT_S);
|
||||
}
|
||||
|
||||
/* Remove onAborted function if we reach the end */
|
||||
if (httpResponseData->offset == totalSize) {
|
||||
markDone(httpResponseData);
|
||||
}
|
||||
|
||||
return success;
|
||||
}
|
||||
}
|
||||
|
||||
/* This call is identical to end, but will never write content-length and is thus suitable for upgrades */
|
||||
void upgrade() {
|
||||
internalEnd({nullptr, 0}, 0, false, false);
|
||||
}
|
||||
|
||||
public:
|
||||
/* Immediately terminate this Http response */
|
||||
using Super::close;
|
||||
|
||||
using Super::getRemoteAddress;
|
||||
|
||||
/* Note: Headers are not checked in regards to timeout.
|
||||
* We only check when you actively push data or end the request */
|
||||
|
||||
/* Write the HTTP status */
|
||||
HttpResponse *writeStatus(std::string_view status) {
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
/* Do not allow writing more than one status */
|
||||
if (httpResponseData->state & HttpResponseData<SSL>::HTTP_STATUS_CALLED) {
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Update status */
|
||||
httpResponseData->state |= HttpResponseData<SSL>::HTTP_STATUS_CALLED;
|
||||
|
||||
Super::write("HTTP/1.1 ", 9);
|
||||
Super::write(status.data(), (int) status.length());
|
||||
Super::write("\r\n", 2);
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Write an HTTP header with string value */
|
||||
HttpResponse *writeHeader(std::string_view key, std::string_view value) {
|
||||
writeStatus(HTTP_200_OK);
|
||||
|
||||
Super::write(key.data(), (int) key.length());
|
||||
Super::write(": ", 2);
|
||||
Super::write(value.data(), (int) value.length());
|
||||
Super::write("\r\n", 2);
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Write an HTTP header with unsigned int value */
|
||||
HttpResponse *writeHeader(std::string_view key, unsigned int value) {
|
||||
Super::write(key.data(), (int) key.length());
|
||||
Super::write(": ", 2);
|
||||
writeUnsigned(value);
|
||||
Super::write("\r\n", 2);
|
||||
return this;
|
||||
}
|
||||
|
||||
/* End the response with an optional data chunk. Always starts a timeout. */
|
||||
void end(std::string_view data = {}) {
|
||||
internalEnd(data, (int) data.length(), false);
|
||||
}
|
||||
|
||||
/* Try and end the response. Returns [true, true] on success.
|
||||
* Starts a timeout in some cases. Returns [ok, hasResponded] */
|
||||
std::pair<bool, bool> tryEnd(std::string_view data, int totalSize = 0) {
|
||||
return {internalEnd(data, totalSize, true), hasResponded()};
|
||||
}
|
||||
|
||||
/* Write parts of the response in chunking fashion. Starts timeout if failed. */
|
||||
bool write(std::string_view data) {
|
||||
writeStatus(HTTP_200_OK);
|
||||
|
||||
/* Do not allow sending 0 chunks, they mark end of response */
|
||||
if (!data.length()) {
|
||||
/* If you called us, then according to you it was fine to call us so it's fine to still call us */
|
||||
return true;
|
||||
}
|
||||
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
if (!(httpResponseData->state & HttpResponseData<SSL>::HTTP_WRITE_CALLED)) {
|
||||
/* Write mark on first call to write */
|
||||
writeMark();
|
||||
|
||||
writeHeader("Transfer-Encoding", "chunked");
|
||||
httpResponseData->state |= HttpResponseData<SSL>::HTTP_WRITE_CALLED;
|
||||
}
|
||||
|
||||
Super::write("\r\n", 2);
|
||||
writeUnsignedHex((unsigned int) data.length());
|
||||
Super::write("\r\n", 2);
|
||||
|
||||
auto [written, failed] = Super::write(data.data(), (int) data.length());
|
||||
if (failed) {
|
||||
Super::timeout(HTTP_TIMEOUT_S);
|
||||
}
|
||||
|
||||
/* If we did not fail the write, accept more */
|
||||
return !failed;
|
||||
}
|
||||
|
||||
/* Get the current byte write offset for this Http response */
|
||||
int getWriteOffset() {
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
return httpResponseData->offset;
|
||||
}
|
||||
|
||||
/* Checking if we have fully responded and are ready for another request */
|
||||
bool hasResponded() {
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
return !(httpResponseData->state & HttpResponseData<SSL>::HTTP_RESPONSE_PENDING);
|
||||
}
|
||||
|
||||
/* Corks the response if possible. Leaves already corked socket be. */
|
||||
HttpResponse *cork(fu2::unique_function<void()> &&handler) {
|
||||
if (!Super::isCorked() && Super::canCork()) {
|
||||
Super::cork();
|
||||
handler();
|
||||
|
||||
/* Timeout on uncork failure, since most writes will succeed while corked */
|
||||
auto [written, failed] = Super::uncork();
|
||||
if (failed) {
|
||||
/* For now we only have one single timeout so let's use it */
|
||||
/* This behavior should equal the behavior in HttpContext when uncorking fails */
|
||||
Super::timeout(HTTP_TIMEOUT_S);
|
||||
}
|
||||
} else {
|
||||
/* We are already corked, or can't cork so let's just call the handler */
|
||||
handler();
|
||||
}
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Attach handler for writable HTTP response */
|
||||
HttpResponse *onWritable(fu2::unique_function<bool(int)> &&handler) {
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
httpResponseData->onWritable = std::move(handler);
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Attach handler for aborted HTTP request */
|
||||
HttpResponse *onAborted(fu2::unique_function<void()> &&handler) {
|
||||
HttpResponseData<SSL> *httpResponseData = getHttpResponseData();
|
||||
|
||||
httpResponseData->onAborted = std::move(handler);
|
||||
return this;
|
||||
}
|
||||
|
||||
/* Attach a read handler for data sent. Will be called with FIN set true if last segment. */
|
||||
void onData(fu2::unique_function<void(std::string_view, bool)> &&handler) {
|
||||
HttpResponseData<SSL> *data = getHttpResponseData();
|
||||
data->inStream = std::move(handler);
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPRESPONSE_H
|
||||
57
test/compatibility/C/uWebSockets/src/HttpResponseData.h
Normal file
57
test/compatibility/C/uWebSockets/src/HttpResponseData.h
Normal file
@@ -0,0 +1,57 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPRESPONSEDATA_H
|
||||
#define UWS_HTTPRESPONSEDATA_H
|
||||
|
||||
/* This data belongs to the HttpResponse */
|
||||
|
||||
#include "HttpParser.h"
|
||||
#include "AsyncSocketData.h"
|
||||
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
template <bool SSL>
|
||||
struct HttpResponseData : AsyncSocketData<SSL>, HttpParser {
|
||||
template <bool> friend struct HttpResponse;
|
||||
template <bool> friend struct HttpContext;
|
||||
private:
|
||||
/* Bits of status */
|
||||
enum {
|
||||
HTTP_STATUS_CALLED = 1, // used
|
||||
HTTP_WRITE_CALLED = 2, // used
|
||||
HTTP_END_CALLED = 4, // used
|
||||
HTTP_RESPONSE_PENDING = 8, // used
|
||||
HTTP_ENDED_STREAM_OUT = 16 // not used
|
||||
};
|
||||
|
||||
/* Per socket event handlers */
|
||||
fu2::unique_function<bool(int)> onWritable;
|
||||
fu2::unique_function<void()> onAborted;
|
||||
fu2::unique_function<void(std::string_view, bool)> inStream; // onData
|
||||
/* Outgoing offset */
|
||||
int offset = 0;
|
||||
|
||||
/* Current state (content-length sent, status sent, write called, etc */
|
||||
int state = 0;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPRESPONSEDATA_H
|
||||
233
test/compatibility/C/uWebSockets/src/HttpRouter.h
Normal file
233
test/compatibility/C/uWebSockets/src/HttpRouter.h
Normal file
@@ -0,0 +1,233 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_HTTPROUTER_HPP
|
||||
#define UWS_HTTPROUTER_HPP
|
||||
|
||||
#include <map>
|
||||
#include <vector>
|
||||
#include <cstring>
|
||||
#include <string_view>
|
||||
#include <string>
|
||||
#include <algorithm>
|
||||
#include <memory>
|
||||
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
template <class USERDATA>
|
||||
struct HttpRouter {
|
||||
/* These are public for now */
|
||||
std::vector<std::string> methods = {"get", "post", "head", "put", "delete", "connect", "options", "trace", "patch"};
|
||||
static const uint32_t HIGH_PRIORITY = 0xd0000000, MEDIUM_PRIORITY = 0xe0000000, LOW_PRIORITY = 0xf0000000;
|
||||
|
||||
private:
|
||||
USERDATA userData;
|
||||
static const unsigned int MAX_URL_SEGMENTS = 100;
|
||||
|
||||
/* Handler ids are 32-bit */
|
||||
static const uint32_t HANDLER_MASK = 0x0fffffff;
|
||||
|
||||
/* Methods and their respective priority */
|
||||
std::map<std::string, int> priority;
|
||||
|
||||
/* List of handlers */
|
||||
std::vector<fu2::unique_function<bool(HttpRouter *)>> handlers;
|
||||
|
||||
/* Current URL cache */
|
||||
std::string_view currentUrl;
|
||||
std::string_view urlSegmentVector[MAX_URL_SEGMENTS];
|
||||
int urlSegmentTop;
|
||||
|
||||
/* The matching tree */
|
||||
struct Node {
|
||||
std::string name;
|
||||
std::vector<std::unique_ptr<Node>> children;
|
||||
std::vector<uint32_t> handlers;
|
||||
} root = {"rootNode"};
|
||||
|
||||
/* Advance from parent to child, adding child if necessary */
|
||||
Node *getNode(Node *parent, std::string child) {
|
||||
for (std::unique_ptr<Node> &node : parent->children) {
|
||||
if (node->name == child) {
|
||||
return node.get();
|
||||
}
|
||||
}
|
||||
|
||||
/* Insert sorted, but keep order if parent is root (we sort methods by priority elsewhere) */
|
||||
std::unique_ptr<Node> newNode(new Node({child}));
|
||||
return parent->children.emplace(std::upper_bound(parent->children.begin(), parent->children.end(), newNode, [parent, this](auto &a, auto &b) {
|
||||
return b->name.length() && (parent != &root) && (b->name < a->name);
|
||||
}), std::move(newNode))->get();
|
||||
}
|
||||
|
||||
/* Basically a pre-allocated stack */
|
||||
struct RouteParameters {
|
||||
friend struct HttpRouter;
|
||||
private:
|
||||
std::string_view params[MAX_URL_SEGMENTS];
|
||||
int paramsTop;
|
||||
|
||||
void reset() {
|
||||
paramsTop = -1;
|
||||
}
|
||||
|
||||
void push(std::string_view param) {
|
||||
/* We check these bounds indirectly via the urlSegments limit */
|
||||
params[++paramsTop] = param;
|
||||
}
|
||||
|
||||
void pop() {
|
||||
/* Same here, we cannot pop outside */
|
||||
paramsTop--;
|
||||
}
|
||||
} routeParameters;
|
||||
|
||||
/* Set URL for router. Will reset any URL cache */
|
||||
inline void setUrl(std::string_view url) {
|
||||
/* Remove / from input URL */
|
||||
currentUrl = url.substr(std::min<unsigned int>((unsigned int) url.length(), 1));
|
||||
urlSegmentTop = -1;
|
||||
}
|
||||
|
||||
/* Lazily parse or read from cache */
|
||||
inline std::string_view getUrlSegment(int urlSegment) {
|
||||
if (urlSegment > urlSegmentTop) {
|
||||
/* Return empty segment if we are out of URL or stack space, but never for first url segment */
|
||||
if (!currentUrl.length() || urlSegment > 99) {
|
||||
return {};
|
||||
}
|
||||
|
||||
auto segmentLength = currentUrl.find('/');
|
||||
if (segmentLength == std::string::npos) {
|
||||
segmentLength = currentUrl.length();
|
||||
|
||||
/* Push to url segment vector */
|
||||
urlSegmentVector[urlSegment] = currentUrl.substr(0, segmentLength);
|
||||
urlSegmentTop++;
|
||||
|
||||
/* Update currentUrl */
|
||||
currentUrl = currentUrl.substr(segmentLength);
|
||||
} else {
|
||||
/* Push to url segment vector */
|
||||
urlSegmentVector[urlSegment] = currentUrl.substr(0, segmentLength);
|
||||
urlSegmentTop++;
|
||||
|
||||
/* Update currentUrl */
|
||||
currentUrl = currentUrl.substr(segmentLength + 1);
|
||||
}
|
||||
}
|
||||
/* In any case we return it */
|
||||
return urlSegmentVector[urlSegment];
|
||||
}
|
||||
|
||||
/* Executes as many handlers it can */
|
||||
bool executeHandlers(Node *parent, int urlSegment, USERDATA &userData) {
|
||||
/* If we have no more URL and not on first round, return where we may stand */
|
||||
if (urlSegment && !getUrlSegment(urlSegment).length()) {
|
||||
/* We have reached accross the entire URL with no stoppage, execute */
|
||||
for (int handler : parent->handlers) {
|
||||
if (handlers[handler & HANDLER_MASK](this)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
/* We reached the end, so go back */
|
||||
return false;
|
||||
}
|
||||
|
||||
for (auto &p : parent->children) {
|
||||
if (p->name.length() && p->name[0] == '*') {
|
||||
/* Wildcard match (can be seen as a shortcut) */
|
||||
for (int handler : p->handlers) {
|
||||
if (handlers[handler & HANDLER_MASK](this)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
} else if (p->name.length() && p->name[0] == ':' && getUrlSegment(urlSegment).length()) {
|
||||
/* Parameter match */
|
||||
routeParameters.push(getUrlSegment(urlSegment));
|
||||
if (executeHandlers(p.get(), urlSegment + 1, userData)) {
|
||||
return true;
|
||||
}
|
||||
routeParameters.pop();
|
||||
} else if (p->name == getUrlSegment(urlSegment)) {
|
||||
/* Static match */
|
||||
if (executeHandlers(p.get(), urlSegment + 1, userData)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public:
|
||||
HttpRouter() {
|
||||
int p = 0;
|
||||
for (std::string &method : methods) {
|
||||
priority[method] = p++;
|
||||
}
|
||||
}
|
||||
|
||||
std::pair<int, std::string_view *> getParameters() {
|
||||
return {routeParameters.paramsTop, routeParameters.params};
|
||||
}
|
||||
|
||||
USERDATA &getUserData() {
|
||||
return userData;
|
||||
}
|
||||
|
||||
/* Fast path */
|
||||
bool route(std::string_view method, std::string_view url) {
|
||||
/* Reset url parsing cache */
|
||||
setUrl(url);
|
||||
routeParameters.reset();
|
||||
|
||||
/* Begin by finding the method node */
|
||||
for (auto &p : root.children) {
|
||||
if (p->name == method) {
|
||||
/* Then route the url */
|
||||
return executeHandlers(p.get(), 0, userData);
|
||||
}
|
||||
}
|
||||
|
||||
/* We did not find any handler for this method and url */
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Adds the corresponding entires in matching tree and handler list */
|
||||
void add(std::vector<std::string> methods, std::string pattern, fu2::unique_function<bool(HttpRouter *)> &&handler, int priority = MEDIUM_PRIORITY) {
|
||||
for (std::string method : methods) {
|
||||
/* Lookup method */
|
||||
Node *node = getNode(&root, method);
|
||||
/* Iterate over all segments */
|
||||
setUrl(pattern);
|
||||
for (int i = 0; getUrlSegment(i).length() || i == 0; i++) {
|
||||
node = getNode(node, std::string(getUrlSegment(i)));
|
||||
}
|
||||
/* Insert handler in order sorted by priority (most significant 1 byte) */
|
||||
node->handlers.insert(std::upper_bound(node->handlers.begin(), node->handlers.end(), (uint32_t) (priority | handlers.size())), (uint32_t) (priority | handlers.size()));
|
||||
}
|
||||
|
||||
/* Alloate this handler */
|
||||
handlers.emplace_back(std::move(handler));
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_HTTPROUTER_HPP
|
||||
169
test/compatibility/C/uWebSockets/src/Loop.h
Normal file
169
test/compatibility/C/uWebSockets/src/Loop.h
Normal file
@@ -0,0 +1,169 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_LOOP_H
|
||||
#define UWS_LOOP_H
|
||||
|
||||
/* The loop is lazily created per-thread and run with uWS::run() */
|
||||
|
||||
#include "LoopData.h"
|
||||
#include <libusockets.h>
|
||||
|
||||
namespace uWS {
|
||||
struct Loop {
|
||||
private:
|
||||
static void wakeupCb(us_loop_t *loop) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext(loop);
|
||||
|
||||
/* Swap current deferQueue */
|
||||
loopData->deferMutex.lock();
|
||||
int oldDeferQueue = loopData->currentDeferQueue;
|
||||
loopData->currentDeferQueue = (loopData->currentDeferQueue + 1) % 2;
|
||||
loopData->deferMutex.unlock();
|
||||
|
||||
/* Drain the queue */
|
||||
for (auto &x : loopData->deferQueues[oldDeferQueue]) {
|
||||
x();
|
||||
}
|
||||
loopData->deferQueues[oldDeferQueue].clear();
|
||||
}
|
||||
|
||||
static void preCb(us_loop_t *loop) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext(loop);
|
||||
|
||||
for (auto &p : loopData->preHandlers) {
|
||||
p.second((Loop *) loop);
|
||||
}
|
||||
}
|
||||
|
||||
static void postCb(us_loop_t *loop) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext(loop);
|
||||
|
||||
for (auto &p : loopData->postHandlers) {
|
||||
p.second((Loop *) loop);
|
||||
}
|
||||
}
|
||||
|
||||
Loop() = delete;
|
||||
~Loop() = default;
|
||||
|
||||
Loop *init() {
|
||||
new (us_loop_ext((us_loop_t *) this)) LoopData;
|
||||
return this;
|
||||
}
|
||||
|
||||
static Loop *create(void *hint) {
|
||||
return ((Loop *) us_create_loop(hint, wakeupCb, preCb, postCb, sizeof(LoopData)))->init();
|
||||
}
|
||||
|
||||
/* What to do with loops created with existingNativeLoop? */
|
||||
struct LoopCleaner {
|
||||
~LoopCleaner() {
|
||||
if(loop && cleanMe) {
|
||||
loop->free();
|
||||
}
|
||||
}
|
||||
Loop *loop = nullptr;
|
||||
bool cleanMe = false;
|
||||
};
|
||||
|
||||
public:
|
||||
/* Lazily initializes a per-thread loop and returns it.
|
||||
* Will automatically free all initialized loops at exit. */
|
||||
static Loop *get(void *existingNativeLoop = nullptr) {
|
||||
static thread_local LoopCleaner lazyLoop;
|
||||
if (!lazyLoop.loop) {
|
||||
/* If we are given a native loop pointer we pass that to uSockets and let it deal with it */
|
||||
if (existingNativeLoop) {
|
||||
/* Todo: here we want to pass the pointer, not a boolean */
|
||||
lazyLoop.loop = create(existingNativeLoop);
|
||||
/* We cannot register automatic free here, must be manually done */
|
||||
} else {
|
||||
lazyLoop.loop = create(nullptr);
|
||||
lazyLoop.cleanMe = true;
|
||||
}
|
||||
}
|
||||
|
||||
return lazyLoop.loop;
|
||||
}
|
||||
|
||||
/* Freeing the default loop should be done once */
|
||||
void free() {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
loopData->~LoopData();
|
||||
/* uSockets will track whether this loop is owned by us or a borrowed alien loop */
|
||||
us_loop_free((us_loop_t *) this);
|
||||
}
|
||||
|
||||
void addPostHandler(void *key, fu2::unique_function<void(Loop *)> &&handler) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
|
||||
loopData->postHandlers.emplace(key, std::move(handler));
|
||||
}
|
||||
|
||||
/* Bug: what if you remove a handler while iterating them? */
|
||||
void removePostHandler(void *key) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
|
||||
loopData->postHandlers.erase(key);
|
||||
}
|
||||
|
||||
void addPreHandler(void *key, fu2::unique_function<void(Loop *)> &&handler) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
|
||||
loopData->preHandlers.emplace(key, std::move(handler));
|
||||
}
|
||||
|
||||
/* Bug: what if you remove a handler while iterating them? */
|
||||
void removePreHandler(void *key) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
|
||||
loopData->preHandlers.erase(key);
|
||||
}
|
||||
|
||||
/* Defer this callback on Loop's thread of execution */
|
||||
void defer(fu2::unique_function<void()> &&cb) {
|
||||
LoopData *loopData = (LoopData *) us_loop_ext((us_loop_t *) this);
|
||||
|
||||
//if (std::thread::get_id() == ) // todo: add fast path for same thread id
|
||||
loopData->deferMutex.lock();
|
||||
loopData->deferQueues[loopData->currentDeferQueue].emplace_back(std::move(cb));
|
||||
loopData->deferMutex.unlock();
|
||||
|
||||
us_wakeup_loop((us_loop_t *) this);
|
||||
}
|
||||
|
||||
/* Actively block and run this loop */
|
||||
void run() {
|
||||
us_loop_run((us_loop_t *) this);
|
||||
}
|
||||
|
||||
/* Passively integrate with the underlying default loop */
|
||||
/* Used to seamlessly integrate with third parties such as Node.js */
|
||||
void integrate() {
|
||||
us_loop_integrate((us_loop_t *) this);
|
||||
}
|
||||
};
|
||||
|
||||
/* Can be called from any thread to run the thread local loop */
|
||||
inline void run() {
|
||||
Loop::get()->run();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_LOOP_H
|
||||
72
test/compatibility/C/uWebSockets/src/LoopData.h
Normal file
72
test/compatibility/C/uWebSockets/src/LoopData.h
Normal file
@@ -0,0 +1,72 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_LOOPDATA_H
|
||||
#define UWS_LOOPDATA_H
|
||||
|
||||
#include <thread>
|
||||
#include <functional>
|
||||
#include <vector>
|
||||
#include <mutex>
|
||||
#include <map>
|
||||
|
||||
#include "PerMessageDeflate.h"
|
||||
|
||||
#include "f2/function2.hpp"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
struct Loop;
|
||||
|
||||
struct alignas(16) LoopData {
|
||||
friend struct Loop;
|
||||
private:
|
||||
std::mutex deferMutex;
|
||||
int currentDeferQueue = 0;
|
||||
std::vector<fu2::unique_function<void()>> deferQueues[2];
|
||||
|
||||
/* Map from void ptr to handler */
|
||||
std::map<void *, fu2::unique_function<void(Loop *)>> postHandlers, preHandlers;
|
||||
|
||||
public:
|
||||
~LoopData() {
|
||||
/* If we have had App.ws called with compression we need to clear this */
|
||||
if (zlibContext) {
|
||||
delete zlibContext;
|
||||
delete inflationStream;
|
||||
delete deflationStream;
|
||||
}
|
||||
delete [] corkBuffer;
|
||||
}
|
||||
|
||||
/* Good 16k for SSL perf. */
|
||||
static const int CORK_BUFFER_SIZE = 16 * 1024;
|
||||
|
||||
/* Cork data */
|
||||
char *corkBuffer = new char[CORK_BUFFER_SIZE];
|
||||
int corkOffset = 0;
|
||||
void *corkedSocket = nullptr;
|
||||
|
||||
/* Per message deflate data */
|
||||
ZlibContext *zlibContext = nullptr;
|
||||
InflationStream *inflationStream = nullptr;
|
||||
DeflationStream *deflationStream = nullptr;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_LOOPDATA_H
|
||||
187
test/compatibility/C/uWebSockets/src/PerMessageDeflate.h
Normal file
187
test/compatibility/C/uWebSockets/src/PerMessageDeflate.h
Normal file
@@ -0,0 +1,187 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
/* This standalone module implements deflate / inflate streams */
|
||||
|
||||
#ifndef UWS_PERMESSAGEDEFLATE_H
|
||||
#define UWS_PERMESSAGEDEFLATE_H
|
||||
|
||||
#ifndef UWS_NO_ZLIB
|
||||
#include <zlib.h>
|
||||
#endif
|
||||
|
||||
#include <string>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
/* Do not compile this module if we don't want it */
|
||||
#ifdef UWS_NO_ZLIB
|
||||
struct ZlibContext {};
|
||||
struct InflationStream {
|
||||
std::string_view inflate(ZlibContext *zlibContext, std::string_view compressed, size_t maxPayloadLength) {
|
||||
return compressed;
|
||||
}
|
||||
};
|
||||
struct DeflationStream {
|
||||
std::string_view deflate(ZlibContext *zlibContext, std::string_view raw, bool reset) {
|
||||
return raw;
|
||||
}
|
||||
};
|
||||
#else
|
||||
|
||||
#define LARGE_BUFFER_SIZE 1024 * 16 // todo: fix this
|
||||
|
||||
struct ZlibContext {
|
||||
/* Any returned data is valid until next same-class call.
|
||||
* We need to have two classes to allow inflation followed
|
||||
* by many deflations without modifying the inflation */
|
||||
std::string dynamicDeflationBuffer;
|
||||
std::string dynamicInflationBuffer;
|
||||
char *deflationBuffer;
|
||||
char *inflationBuffer;
|
||||
|
||||
ZlibContext() {
|
||||
deflationBuffer = (char *) malloc(LARGE_BUFFER_SIZE);
|
||||
inflationBuffer = (char *) malloc(LARGE_BUFFER_SIZE);
|
||||
}
|
||||
|
||||
~ZlibContext() {
|
||||
free(deflationBuffer);
|
||||
free(inflationBuffer);
|
||||
}
|
||||
};
|
||||
|
||||
struct DeflationStream {
|
||||
z_stream deflationStream = {};
|
||||
|
||||
DeflationStream() {
|
||||
deflateInit2(&deflationStream, 1, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
|
||||
}
|
||||
|
||||
/* Deflate and optionally reset */
|
||||
std::string_view deflate(ZlibContext *zlibContext, std::string_view raw, bool reset) {
|
||||
/* Odd place to clear this one, fix */
|
||||
zlibContext->dynamicDeflationBuffer.clear();
|
||||
|
||||
deflationStream.next_in = (Bytef *) raw.data();
|
||||
deflationStream.avail_in = (unsigned int) raw.length();
|
||||
|
||||
/* This buffer size has to be at least 6 bytes for Z_SYNC_FLUSH to work */
|
||||
const int DEFLATE_OUTPUT_CHUNK = LARGE_BUFFER_SIZE;
|
||||
|
||||
int err;
|
||||
do {
|
||||
deflationStream.next_out = (Bytef *) zlibContext->deflationBuffer;
|
||||
deflationStream.avail_out = DEFLATE_OUTPUT_CHUNK;
|
||||
|
||||
err = ::deflate(&deflationStream, Z_SYNC_FLUSH);
|
||||
if (Z_OK == err && deflationStream.avail_out == 0) {
|
||||
zlibContext->dynamicDeflationBuffer.append(zlibContext->deflationBuffer, DEFLATE_OUTPUT_CHUNK - deflationStream.avail_out);
|
||||
continue;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
} while (true);
|
||||
|
||||
/* This must not change avail_out */
|
||||
if (reset) {
|
||||
deflateReset(&deflationStream);
|
||||
}
|
||||
|
||||
if (zlibContext->dynamicDeflationBuffer.length()) {
|
||||
zlibContext->dynamicDeflationBuffer.append(zlibContext->deflationBuffer, DEFLATE_OUTPUT_CHUNK - deflationStream.avail_out);
|
||||
|
||||
return {(char *) zlibContext->dynamicDeflationBuffer.data(), zlibContext->dynamicDeflationBuffer.length() - 4};
|
||||
}
|
||||
|
||||
return {
|
||||
zlibContext->deflationBuffer,
|
||||
DEFLATE_OUTPUT_CHUNK - deflationStream.avail_out - 4
|
||||
};
|
||||
}
|
||||
|
||||
~DeflationStream() {
|
||||
deflateEnd(&deflationStream);
|
||||
}
|
||||
};
|
||||
|
||||
struct InflationStream {
|
||||
z_stream inflationStream = {};
|
||||
|
||||
InflationStream() {
|
||||
inflateInit2(&inflationStream, -15);
|
||||
}
|
||||
|
||||
~InflationStream() {
|
||||
inflateEnd(&inflationStream);
|
||||
}
|
||||
|
||||
std::string_view inflate(ZlibContext *zlibContext, std::string_view compressed, size_t maxPayloadLength) {
|
||||
|
||||
/* We clear this one here, could be done better */
|
||||
zlibContext->dynamicInflationBuffer.clear();
|
||||
|
||||
inflationStream.next_in = (Bytef *) compressed.data();
|
||||
inflationStream.avail_in = (unsigned int) compressed.length();
|
||||
|
||||
int err;
|
||||
do {
|
||||
inflationStream.next_out = (Bytef *) zlibContext->inflationBuffer;
|
||||
inflationStream.avail_out = LARGE_BUFFER_SIZE;
|
||||
|
||||
err = ::inflate(&inflationStream, Z_SYNC_FLUSH);
|
||||
if (err == Z_OK && inflationStream.avail_out) {
|
||||
break;
|
||||
}
|
||||
|
||||
zlibContext->dynamicInflationBuffer.append(zlibContext->inflationBuffer, LARGE_BUFFER_SIZE - inflationStream.avail_out);
|
||||
|
||||
|
||||
} while (inflationStream.avail_out == 0 && zlibContext->dynamicInflationBuffer.length() <= maxPayloadLength);
|
||||
|
||||
inflateReset(&inflationStream);
|
||||
|
||||
if ((err != Z_BUF_ERROR && err != Z_OK) || zlibContext->dynamicInflationBuffer.length() > maxPayloadLength) {
|
||||
return {nullptr, 0};
|
||||
}
|
||||
|
||||
if (zlibContext->dynamicInflationBuffer.length()) {
|
||||
zlibContext->dynamicInflationBuffer.append(zlibContext->inflationBuffer, LARGE_BUFFER_SIZE - inflationStream.avail_out);
|
||||
|
||||
/* Let's be strict about the max size */
|
||||
if (zlibContext->dynamicInflationBuffer.length() > maxPayloadLength) {
|
||||
return {nullptr, 0};
|
||||
}
|
||||
|
||||
return {zlibContext->dynamicInflationBuffer.data(), zlibContext->dynamicInflationBuffer.length()};
|
||||
}
|
||||
|
||||
/* Let's be strict about the max size */
|
||||
if ((LARGE_BUFFER_SIZE - inflationStream.avail_out) > maxPayloadLength) {
|
||||
return {nullptr, 0};
|
||||
}
|
||||
|
||||
return {zlibContext->inflationBuffer, LARGE_BUFFER_SIZE - inflationStream.avail_out};
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_PERMESSAGEDEFLATE_H
|
||||
429
test/compatibility/C/uWebSockets/src/TopicTreeDraft.h
Normal file
429
test/compatibility/C/uWebSockets/src/TopicTreeDraft.h
Normal file
@@ -0,0 +1,429 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_TOPICTREE_H
|
||||
#define UWS_TOPICTREE_H
|
||||
|
||||
#include <iostream>
|
||||
#include <vector>
|
||||
#include <map>
|
||||
#include <string_view>
|
||||
#include <functional>
|
||||
#include <set>
|
||||
#include <chrono>
|
||||
#include <list>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
/* A Subscriber is an extension of a socket */
|
||||
struct Subscriber {
|
||||
std::list<struct Topic *> subscriptions;
|
||||
void *user;
|
||||
|
||||
Subscriber(void *user) : user(user) {}
|
||||
};
|
||||
|
||||
struct Topic {
|
||||
/* Memory for our name */
|
||||
char *name;
|
||||
size_t length;
|
||||
|
||||
/* Our parent or nullptr */
|
||||
Topic *parent = nullptr;
|
||||
|
||||
/* Next triggered Topic */
|
||||
bool triggered = false;
|
||||
|
||||
/* Exact string matches */
|
||||
std::map<std::string_view, Topic *> children;
|
||||
|
||||
/* Wildcard child */
|
||||
Topic *wildcardChild = nullptr;
|
||||
|
||||
/* Terminating wildcard child */
|
||||
Topic *terminatingWildcardChild = nullptr;
|
||||
|
||||
/* What we published */
|
||||
std::map<unsigned int, std::string> messages;
|
||||
|
||||
std::set<Subscriber *> subs;
|
||||
};
|
||||
|
||||
struct TopicTree {
|
||||
private:
|
||||
std::function<int(Subscriber *, std::string_view)> cb;
|
||||
|
||||
Topic *root = new Topic;
|
||||
|
||||
/* Global messageId for deduplication of overlapping topics and ordering between topics */
|
||||
unsigned int messageId = 0;
|
||||
|
||||
/* The triggered topics */
|
||||
Topic *triggeredTopics[64];
|
||||
int numTriggeredTopics = 0;
|
||||
Subscriber *min = (Subscriber *) UINTPTR_MAX;
|
||||
|
||||
/* Cull or trim unused Topic nodes from leaf to root */
|
||||
void trimTree(Topic *topic) {
|
||||
if (!topic->subs.size() && !topic->children.size() && !topic->terminatingWildcardChild && !topic->wildcardChild) {
|
||||
Topic *parent = topic->parent;
|
||||
|
||||
if (topic->length == 1) {
|
||||
if (topic->name[0] == '#') {
|
||||
parent->terminatingWildcardChild = nullptr;
|
||||
} else if (topic->name[0] == '+') {
|
||||
parent->wildcardChild = nullptr;
|
||||
}
|
||||
}
|
||||
/* Erase us from our parents set (wildcards also live here) */
|
||||
parent->children.erase(std::string_view(topic->name, topic->length));
|
||||
|
||||
/* If this node is triggered, make sure to remove it from the triggered list */
|
||||
if (topic->triggered) {
|
||||
Topic *tmp[64];
|
||||
int length = 0;
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
if (triggeredTopics[i] != topic) {
|
||||
tmp[length++] = triggeredTopics[i];
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i < length; i++) {
|
||||
triggeredTopics[i] = tmp[i];
|
||||
}
|
||||
numTriggeredTopics = length;
|
||||
}
|
||||
|
||||
/* Free various memory for the node */
|
||||
delete [] topic->name;
|
||||
delete topic;
|
||||
|
||||
if (parent != root) {
|
||||
trimTree(parent);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Should be getData and commit? */
|
||||
void publish(Topic *iterator, size_t start, size_t stop, std::string_view topic, std::string_view message) {
|
||||
/* If we already have 64 triggered topics make sure to drain it here */
|
||||
if (numTriggeredTopics == 64) {
|
||||
drain();
|
||||
}
|
||||
|
||||
for (; stop != std::string::npos; start = stop + 1) {
|
||||
stop = topic.find('/', start);
|
||||
std::string_view segment = topic.substr(start, stop - start);
|
||||
|
||||
/* Do we have a terminating wildcard child? */
|
||||
if (iterator->terminatingWildcardChild) {
|
||||
iterator->terminatingWildcardChild->messages[messageId] = message;
|
||||
|
||||
/* Add this topic to triggered */
|
||||
if (!iterator->terminatingWildcardChild->triggered) {
|
||||
triggeredTopics[numTriggeredTopics++] = iterator->terminatingWildcardChild;
|
||||
|
||||
/* Keep track of lowest subscriber */
|
||||
if (*iterator->terminatingWildcardChild->subs.begin() < min) {
|
||||
min = *iterator->terminatingWildcardChild->subs.begin();
|
||||
}
|
||||
|
||||
iterator->terminatingWildcardChild->triggered = true;
|
||||
}
|
||||
}
|
||||
|
||||
/* Do we have a wildcard child? */
|
||||
if (iterator->wildcardChild) {
|
||||
publish(iterator->wildcardChild, stop + 1, stop, topic, message);
|
||||
}
|
||||
|
||||
std::map<std::string_view, Topic *>::iterator it = iterator->children.find(segment);
|
||||
if (it == iterator->children.end()) {
|
||||
/* Stop trying to match by exact string */
|
||||
return;
|
||||
}
|
||||
|
||||
iterator = it->second;
|
||||
}
|
||||
|
||||
/* If we went all the way we matched exactly */
|
||||
iterator->messages[messageId] = message;
|
||||
|
||||
/* Add this topic to triggered */
|
||||
if (!iterator->triggered) {
|
||||
triggeredTopics[numTriggeredTopics++] = iterator;
|
||||
|
||||
/* Keep track of lowest subscriber */
|
||||
if (*iterator->subs.begin() < min) {
|
||||
min = *iterator->subs.begin();
|
||||
}
|
||||
|
||||
iterator->triggered = true;
|
||||
}
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
TopicTree(std::function<int(Subscriber *, std::string_view)> cb) {
|
||||
this->cb = cb;
|
||||
}
|
||||
|
||||
~TopicTree() {
|
||||
delete root;
|
||||
}
|
||||
|
||||
void subscribe(std::string_view topic, Subscriber *subscriber) {
|
||||
/* Start iterating from the root */
|
||||
Topic *iterator = root;
|
||||
|
||||
/* Traverse the topic, inserting a node for every new segment separated by / */
|
||||
for (size_t start = 0, stop = 0; stop != std::string::npos; start = stop + 1) {
|
||||
stop = topic.find('/', start);
|
||||
std::string_view segment = topic.substr(start, stop - start);
|
||||
|
||||
auto lb = iterator->children.lower_bound(segment);
|
||||
|
||||
if (lb != iterator->children.end() && !(iterator->children.key_comp()(segment, lb->first))) {
|
||||
iterator = lb->second;
|
||||
} else {
|
||||
/* Allocate and insert new node */
|
||||
Topic *newTopic = new Topic;
|
||||
newTopic->parent = iterator;
|
||||
newTopic->name = new char[segment.length()];
|
||||
newTopic->length = segment.length();
|
||||
newTopic->terminatingWildcardChild = nullptr;
|
||||
newTopic->wildcardChild = nullptr;
|
||||
memcpy(newTopic->name, segment.data(), segment.length());
|
||||
|
||||
/* For simplicity we do insert wildcards with text */
|
||||
iterator->children.insert(lb, {std::string_view(newTopic->name, segment.length()), newTopic});
|
||||
|
||||
/* Store fast lookup to wildcards */
|
||||
if (segment.length() == 1) {
|
||||
/* If this segment is '+' it is a wildcard */
|
||||
if (segment[0] == '+') {
|
||||
iterator->wildcardChild = newTopic;
|
||||
}
|
||||
/* If this segment is '#' it is a terminating wildcard */
|
||||
if (segment[0] == '#') {
|
||||
iterator->terminatingWildcardChild = newTopic;
|
||||
}
|
||||
}
|
||||
|
||||
iterator = newTopic;
|
||||
}
|
||||
}
|
||||
|
||||
/* Add socket to Topic's Set */
|
||||
auto [it, inserted] = iterator->subs.insert(subscriber);
|
||||
|
||||
/* Add Topic to list of subscriptions only if we weren't already subscribed */
|
||||
if (inserted) {
|
||||
subscriber->subscriptions.push_back(iterator);
|
||||
}
|
||||
}
|
||||
|
||||
void publish(std::string_view topic, std::string_view message) {
|
||||
publish(root, 0, 0, topic, message);
|
||||
messageId++;
|
||||
}
|
||||
|
||||
/* Returns whether we were subscribed prior */
|
||||
bool unsubscribe(std::string_view topic, Subscriber *subscriber) {
|
||||
/* Subscribers are likely to have very few subscriptions (20 or fewer) */
|
||||
if (subscriber) {
|
||||
/* Lookup exact Topic ptr from string */
|
||||
Topic *iterator = root;
|
||||
for (size_t start = 0, stop = 0; stop != std::string::npos; start = stop + 1) {
|
||||
stop = topic.find('/', start);
|
||||
std::string_view segment = topic.substr(start, stop - start);
|
||||
|
||||
std::map<std::string_view, Topic *>::iterator it = iterator->children.find(segment);
|
||||
if (it == iterator->children.end()) {
|
||||
/* This topic does not even exist */
|
||||
return false;
|
||||
}
|
||||
|
||||
iterator = it->second;
|
||||
}
|
||||
|
||||
/* Try and remove this topic from our list */
|
||||
for (auto it = subscriber->subscriptions.begin(); it != subscriber->subscriptions.end(); it++) {
|
||||
if (*it == iterator) {
|
||||
/* Remove topic ptr from our list */
|
||||
subscriber->subscriptions.erase(it);
|
||||
|
||||
/* Remove us from Topic's subs */
|
||||
iterator->subs.erase(subscriber);
|
||||
trimTree(iterator);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Can be called with nullptr, ignore it then */
|
||||
void unsubscribeAll(Subscriber *subscriber) {
|
||||
if (subscriber) {
|
||||
for (Topic *topic : subscriber->subscriptions) {
|
||||
topic->subs.erase(subscriber);
|
||||
trimTree(topic);
|
||||
}
|
||||
subscriber->subscriptions.clear();
|
||||
}
|
||||
}
|
||||
|
||||
/* Drain the tree by emitting what to send with every Subscriber */
|
||||
/* Better name would be commit() and making it public so that one can commit and shutdown, etc */
|
||||
void drain() {
|
||||
|
||||
/* Do nothing if nothing to send */
|
||||
if (!numTriggeredTopics) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* bug fix: Filter triggered topics without subscribers */
|
||||
int numFilteredTriggeredTopics = 0;
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
if (triggeredTopics[i]->subs.size()) {
|
||||
triggeredTopics[numFilteredTriggeredTopics++] = triggeredTopics[i];
|
||||
}
|
||||
}
|
||||
numTriggeredTopics = numFilteredTriggeredTopics;
|
||||
|
||||
if (!numTriggeredTopics) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* bug fix: update min, as the one tracked via subscribe gets invalid as you unsubscribe */
|
||||
min = (Subscriber *)UINTPTR_MAX;
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
if ((triggeredTopics[i]->subs.size()) && (min > *triggeredTopics[i]->subs.begin())) {
|
||||
min = *triggeredTopics[i]->subs.begin();
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if we really have any sockets still */
|
||||
if (min != (Subscriber *)UINTPTR_MAX) {
|
||||
|
||||
/* Up to 64 triggered Topics per batch */
|
||||
std::map<uint64_t, std::string> intersectionCache;
|
||||
|
||||
/* Loop over these here */
|
||||
std::set<Subscriber *>::iterator it[64];
|
||||
std::set<Subscriber *>::iterator end[64];
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
it[i] = triggeredTopics[i]->subs.begin();
|
||||
end[i] = triggeredTopics[i]->subs.end();
|
||||
}
|
||||
|
||||
/* Empty all sets from unique subscribers */
|
||||
for (int nonEmpty = numTriggeredTopics; nonEmpty; ) {
|
||||
|
||||
Subscriber *nextMin = (Subscriber *)UINTPTR_MAX;
|
||||
|
||||
/* The message sets relevant for this intersection */
|
||||
std::map<unsigned int, std::string> *perSubscriberIntersectingTopicMessages[64];
|
||||
int numPerSubscriberIntersectingTopicMessages = 0;
|
||||
|
||||
uint64_t intersection = 0;
|
||||
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
if ((it[i] != end[i]) && (*it[i] == min)) {
|
||||
|
||||
/* Mark this intersection */
|
||||
intersection |= ((uint64_t)1 << i);
|
||||
perSubscriberIntersectingTopicMessages[numPerSubscriberIntersectingTopicMessages++] = &triggeredTopics[i]->messages;
|
||||
|
||||
it[i]++;
|
||||
if (it[i] == end[i]) {
|
||||
nonEmpty--;
|
||||
}
|
||||
else {
|
||||
if (nextMin > *it[i]) {
|
||||
nextMin = *it[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* We need to lower nextMin to us, in the case of min being the last in a set */
|
||||
if ((it[i] != end[i]) && (nextMin > *it[i])) {
|
||||
nextMin = *it[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Generate cache for intersection */
|
||||
if (intersectionCache[intersection].length() == 0) {
|
||||
|
||||
/* Build the union in order without duplicates */
|
||||
std::map<unsigned int, std::string> complete;
|
||||
for (int i = 0; i < numPerSubscriberIntersectingTopicMessages; i++) {
|
||||
complete.insert(perSubscriberIntersectingTopicMessages[i]->begin(), perSubscriberIntersectingTopicMessages[i]->end());
|
||||
}
|
||||
|
||||
/* Create the linear cache */
|
||||
std::string res;
|
||||
for (auto &p : complete) {
|
||||
res.append(p.second);
|
||||
}
|
||||
|
||||
cb(min, intersectionCache[intersection] = std::move(res));
|
||||
}
|
||||
else {
|
||||
cb(min, intersectionCache[intersection]);
|
||||
}
|
||||
|
||||
min = nextMin;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Clear messages of triggered Topics */
|
||||
for (int i = 0; i < numTriggeredTopics; i++) {
|
||||
triggeredTopics[i]->messages.clear();
|
||||
triggeredTopics[i]->triggered = false;
|
||||
}
|
||||
numTriggeredTopics = 0;
|
||||
}
|
||||
|
||||
void print(Topic *root = nullptr, int indentation = 1) {
|
||||
if (root == nullptr) {
|
||||
std::cout << "Print of tree:" << std::endl;
|
||||
root = this->root;
|
||||
}
|
||||
|
||||
for (auto p : root->children) {
|
||||
for (int i = 0; i < indentation; i++) {
|
||||
std::cout << " ";
|
||||
}
|
||||
std::cout << std::string_view(p.second->name, p.second->length) << " = " << p.second->messages.size() << " publishes, " << p.second->subs.size() << " subscribers {";
|
||||
|
||||
for (auto &p : p.second->subs) {
|
||||
std::cout << p << " referring to socket: " << p->user << ", ";
|
||||
}
|
||||
std::cout << "}" << std::endl;
|
||||
|
||||
print(p.second, indentation + 1);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
66
test/compatibility/C/uWebSockets/src/Utilities.h
Normal file
66
test/compatibility/C/uWebSockets/src/Utilities.h
Normal file
@@ -0,0 +1,66 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_UTILITIES_H
|
||||
#define UWS_UTILITIES_H
|
||||
|
||||
/* Various common utilities */
|
||||
|
||||
#include <cstdint>
|
||||
|
||||
namespace uWS {
|
||||
namespace utils {
|
||||
|
||||
inline int u32toaHex(uint32_t value, char *dst) {
|
||||
char palette[] = "0123456789abcdef";
|
||||
char temp[10];
|
||||
char *p = temp;
|
||||
do {
|
||||
*p++ = palette[value % 16];
|
||||
value /= 16;
|
||||
} while (value > 0);
|
||||
|
||||
int ret = (int) (p - temp);
|
||||
|
||||
do {
|
||||
*dst++ = *--p;
|
||||
} while (p != temp);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
inline int u32toa(uint32_t value, char *dst) {
|
||||
char temp[10];
|
||||
char *p = temp;
|
||||
do {
|
||||
*p++ = (char) ((value % 10) + '0');
|
||||
value /= 10;
|
||||
} while (value > 0);
|
||||
|
||||
int ret = (int) (p - temp);
|
||||
|
||||
do {
|
||||
*dst++ = *--p;
|
||||
} while (p != temp);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
#endif // UWS_UTILITIES_H
|
||||
213
test/compatibility/C/uWebSockets/src/WebSocket.h
Normal file
213
test/compatibility/C/uWebSockets/src/WebSocket.h
Normal file
@@ -0,0 +1,213 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKET_H
|
||||
#define UWS_WEBSOCKET_H
|
||||
|
||||
#include "WebSocketData.h"
|
||||
#include "WebSocketProtocol.h"
|
||||
#include "AsyncSocket.h"
|
||||
#include "WebSocketContextData.h"
|
||||
|
||||
#include <string_view>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
template <bool SSL, bool isServer>
|
||||
struct WebSocket : AsyncSocket<SSL> {
|
||||
template <bool> friend struct TemplatedApp;
|
||||
private:
|
||||
typedef AsyncSocket<SSL> Super;
|
||||
|
||||
void *init(bool perMessageDeflate, bool slidingCompression, std::string &&backpressure) {
|
||||
new (us_socket_ext(SSL, (us_socket_t *) this)) WebSocketData(perMessageDeflate, slidingCompression, std::move(backpressure));
|
||||
return this;
|
||||
}
|
||||
public:
|
||||
|
||||
/* Returns pointer to the per socket user data */
|
||||
void *getUserData() {
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) this);
|
||||
/* We just have it overallocated by sizeof type */
|
||||
return (webSocketData + 1);
|
||||
}
|
||||
|
||||
/* See AsyncSocket */
|
||||
using Super::getBufferedAmount;
|
||||
using Super::getRemoteAddress;
|
||||
|
||||
/* Simple, immediate close of the socket. Emits close event */
|
||||
using Super::close;
|
||||
|
||||
/* Send or buffer a WebSocket frame, compressed or not. Returns false on increased user space backpressure. */
|
||||
bool send(std::string_view message, uWS::OpCode opCode = uWS::OpCode::BINARY, bool compress = false) {
|
||||
/* Transform the message to compressed domain if requested */
|
||||
if (compress) {
|
||||
WebSocketData *webSocketData = (WebSocketData *) Super::getAsyncSocketData();
|
||||
|
||||
/* Check and correct the compress hint */
|
||||
if (opCode < 3 && webSocketData->compressionStatus == WebSocketData::ENABLED) {
|
||||
LoopData *loopData = Super::getLoopData();
|
||||
/* Compress using either shared or dedicated deflationStream */
|
||||
if (webSocketData->deflationStream) {
|
||||
message = webSocketData->deflationStream->deflate(loopData->zlibContext, message, false);
|
||||
} else {
|
||||
message = loopData->deflationStream->deflate(loopData->zlibContext, message, true);
|
||||
}
|
||||
} else {
|
||||
compress = false;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check to see if we can cork for the user */
|
||||
bool automaticallyCorked = false;
|
||||
if (!Super::isCorked() && Super::canCork()) {
|
||||
automaticallyCorked = true;
|
||||
Super::cork();
|
||||
}
|
||||
|
||||
/* Get size, alloate size, write if needed */
|
||||
size_t messageFrameSize = protocol::messageFrameSize(message.length());
|
||||
auto[sendBuffer, requiresWrite] = Super::getSendBuffer(messageFrameSize);
|
||||
protocol::formatMessage<isServer>(sendBuffer, message.data(), message.length(), opCode, message.length(), compress);
|
||||
/* This is the slow path, when we couldn't cork for the user */
|
||||
if (requiresWrite) {
|
||||
auto[written, failed] = Super::write(sendBuffer, (int) messageFrameSize);
|
||||
|
||||
/* For now, we are slow here */
|
||||
free(sendBuffer);
|
||||
|
||||
if (failed) {
|
||||
/* Return false for failure, skipping to reset the timeout below */
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/* Uncork here if we automatically corked for the user */
|
||||
if (automaticallyCorked) {
|
||||
auto [written, failed] = Super::uncork();
|
||||
if (failed) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/* Every successful send resets the timeout */
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL,
|
||||
(us_socket_context_t *) us_socket_context(SSL, (us_socket_t *) this)
|
||||
);
|
||||
AsyncSocket<SSL>::timeout(webSocketContextData->idleTimeout);
|
||||
|
||||
/* Return success */
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Send websocket close frame, emit close event, send FIN if successful */
|
||||
void end(int code, std::string_view message = {}) {
|
||||
/* Check if we already called this one */
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) this);
|
||||
if (webSocketData->isShuttingDown) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* We postpone any FIN sending to either drainage or uncorking */
|
||||
webSocketData->isShuttingDown = true;
|
||||
|
||||
/* Format and send the close frame */
|
||||
static const int MAX_CLOSE_PAYLOAD = 123;
|
||||
int length = (int) std::min<size_t>(MAX_CLOSE_PAYLOAD, message.length());
|
||||
char closePayload[MAX_CLOSE_PAYLOAD + 2];
|
||||
int closePayloadLength = (int) protocol::formatClosePayload(closePayload, (uint16_t) code, message.data(), length);
|
||||
bool ok = send(std::string_view(closePayload, closePayloadLength), OpCode::CLOSE);
|
||||
|
||||
/* FIN if we are ok and not corked */
|
||||
WebSocket<SSL, true> *webSocket = (WebSocket<SSL, true> *) this;
|
||||
if (!webSocket->isCorked()) {
|
||||
if (ok) {
|
||||
/* If we are not corked, and we just sent off everything, we need to FIN right here.
|
||||
* In all other cases, we need to fin either if uncork was successful, or when drainage is complete. */
|
||||
webSocket->shutdown();
|
||||
}
|
||||
}
|
||||
|
||||
/* Emit close event */
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL,
|
||||
(us_socket_context_t *) us_socket_context(SSL, (us_socket_t *) this)
|
||||
);
|
||||
if (webSocketContextData->closeHandler) {
|
||||
webSocketContextData->closeHandler(this, code, message);
|
||||
}
|
||||
|
||||
/* Make sure to unsubscribe from any pub/sub node at exit */
|
||||
webSocketContextData->topicTree.unsubscribeAll(webSocketData->subscriber);
|
||||
delete webSocketData->subscriber;
|
||||
webSocketData->subscriber = nullptr;
|
||||
}
|
||||
|
||||
/* Corks the response if possible. Leaves already corked socket be. */
|
||||
void cork(fu2::unique_function<void()> &&handler) {
|
||||
if (!Super::isCorked() && Super::canCork()) {
|
||||
Super::cork();
|
||||
handler();
|
||||
|
||||
/* There is no timeout when failing to uncork for WebSockets,
|
||||
* as that is handled by idleTimeout */
|
||||
auto [written, failed] = Super::uncork();
|
||||
} else {
|
||||
/* We are already corked, or can't cork so let's just call the handler */
|
||||
handler();
|
||||
}
|
||||
}
|
||||
|
||||
/* Subscribe to a topic according to MQTT rules and syntax */
|
||||
void subscribe(std::string_view topic) {
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL,
|
||||
(us_socket_context_t *) us_socket_context(SSL, (us_socket_t *) this)
|
||||
);
|
||||
|
||||
/* Make us a subscriber if we aren't yet */
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) this);
|
||||
if (!webSocketData->subscriber) {
|
||||
webSocketData->subscriber = new Subscriber(this);
|
||||
}
|
||||
|
||||
webSocketContextData->topicTree.subscribe(topic, webSocketData->subscriber);
|
||||
}
|
||||
|
||||
/* Unsubscribe from a topic, returns true if we were subscribed */
|
||||
bool unsubscribe(std::string_view topic) {
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL,
|
||||
(us_socket_context_t *) us_socket_context(SSL, (us_socket_t *) this)
|
||||
);
|
||||
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) this);
|
||||
|
||||
return webSocketContextData->topicTree.unsubscribe(topic, webSocketData->subscriber);
|
||||
}
|
||||
|
||||
/* Publish a message to a topic according to MQTT rules and syntax */
|
||||
void publish(std::string_view topic, std::string_view message, OpCode opCode = OpCode::TEXT, bool compress = false) {
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL,
|
||||
(us_socket_context_t *) us_socket_context(SSL, (us_socket_t *) this)
|
||||
);
|
||||
/* Is the same as publishing per websocket context */
|
||||
webSocketContextData->publish(topic, message, opCode, compress);
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKET_H
|
||||
380
test/compatibility/C/uWebSockets/src/WebSocketContext.h
Normal file
380
test/compatibility/C/uWebSockets/src/WebSocketContext.h
Normal file
@@ -0,0 +1,380 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETCONTEXT_H
|
||||
#define UWS_WEBSOCKETCONTEXT_H
|
||||
|
||||
#include "WebSocketContextData.h"
|
||||
#include "WebSocketProtocol.h"
|
||||
#include "WebSocketData.h"
|
||||
#include "WebSocket.h"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
template <bool SSL, bool isServer>
|
||||
struct WebSocketContext {
|
||||
template <bool> friend struct TemplatedApp;
|
||||
template <bool, typename> friend struct WebSocketProtocol;
|
||||
private:
|
||||
WebSocketContext() = delete;
|
||||
|
||||
us_socket_context_t *getSocketContext() {
|
||||
return (us_socket_context_t *) this;
|
||||
}
|
||||
|
||||
WebSocketContextData<SSL> *getExt() {
|
||||
return (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, (us_socket_context_t *) this);
|
||||
}
|
||||
|
||||
/* If we have negotiated compression, set this frame compressed */
|
||||
static bool setCompressed(uWS::WebSocketState<isServer> *wState, void *s) {
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) s);
|
||||
|
||||
if (webSocketData->compressionStatus == WebSocketData::CompressionStatus::ENABLED) {
|
||||
webSocketData->compressionStatus = WebSocketData::CompressionStatus::COMPRESSED_FRAME;
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
static void forceClose(uWS::WebSocketState<isServer> *wState, void *s) {
|
||||
us_socket_close(SSL, (us_socket_t *) s);
|
||||
}
|
||||
|
||||
/* Returns true on breakage */
|
||||
static bool handleFragment(char *data, size_t length, unsigned int remainingBytes, int opCode, bool fin, uWS::WebSocketState<isServer> *webSocketState, void *s) {
|
||||
/* WebSocketData and WebSocketContextData */
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
WebSocketData *webSocketData = (WebSocketData *) us_socket_ext(SSL, (us_socket_t *) s);
|
||||
|
||||
/* Is this a non-control frame? */
|
||||
if (opCode < 3) {
|
||||
/* Did we get everything in one go? */
|
||||
if (!remainingBytes && fin && !webSocketData->fragmentBuffer.length()) {
|
||||
|
||||
/* Handle compressed frame */
|
||||
if (webSocketData->compressionStatus == WebSocketData::CompressionStatus::COMPRESSED_FRAME) {
|
||||
webSocketData->compressionStatus = WebSocketData::CompressionStatus::ENABLED;
|
||||
|
||||
LoopData *loopData = (LoopData *) us_loop_ext(us_socket_context_loop(SSL, us_socket_context(SSL, (us_socket_t *) s)));
|
||||
std::string_view inflatedFrame = loopData->inflationStream->inflate(loopData->zlibContext, {data, length}, webSocketContextData->maxPayloadLength);
|
||||
if (!inflatedFrame.length()) {
|
||||
forceClose(webSocketState, s);
|
||||
return true;
|
||||
} else {
|
||||
data = (char *) inflatedFrame.data();
|
||||
length = inflatedFrame.length();
|
||||
}
|
||||
}
|
||||
|
||||
/* Check text messages for Utf-8 validity */
|
||||
if (opCode == 1 && !protocol::isValidUtf8((unsigned char *) data, length)) {
|
||||
forceClose(webSocketState, s);
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Emit message event & break if we are closed or shut down when returning */
|
||||
if (webSocketContextData->messageHandler) {
|
||||
webSocketContextData->messageHandler((WebSocket<SSL, isServer> *) s, std::string_view(data, length), (uWS::OpCode) opCode);
|
||||
if (us_socket_is_closed(SSL, (us_socket_t *) s) || webSocketData->isShuttingDown) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* Allocate fragment buffer up front first time */
|
||||
if (!webSocketData->fragmentBuffer.length()) {
|
||||
webSocketData->fragmentBuffer.reserve(length + remainingBytes);
|
||||
}
|
||||
/* Fragments forming a big message are not caught until appending them */
|
||||
if (refusePayloadLength(length + webSocketData->fragmentBuffer.length(), webSocketState, s)) {
|
||||
forceClose(webSocketState, s);
|
||||
return true;
|
||||
}
|
||||
webSocketData->fragmentBuffer.append(data, length);
|
||||
|
||||
/* Are we done now? */
|
||||
// todo: what if we don't have any remaining bytes yet we are not fin? forceclose!
|
||||
if (!remainingBytes && fin) {
|
||||
|
||||
/* Handle compression */
|
||||
if (webSocketData->compressionStatus == WebSocketData::CompressionStatus::COMPRESSED_FRAME) {
|
||||
webSocketData->compressionStatus = WebSocketData::CompressionStatus::ENABLED;
|
||||
|
||||
// what's really the story here?
|
||||
webSocketData->fragmentBuffer.append("....");
|
||||
|
||||
LoopData *loopData = (LoopData *) us_loop_ext(
|
||||
us_socket_context_loop(SSL,
|
||||
us_socket_context(SSL, (us_socket_t *) s)
|
||||
)
|
||||
);
|
||||
|
||||
std::string_view inflatedFrame = loopData->inflationStream->inflate(loopData->zlibContext, {webSocketData->fragmentBuffer.data(), webSocketData->fragmentBuffer.length() - 4}, webSocketContextData->maxPayloadLength);
|
||||
if (!inflatedFrame.length()) {
|
||||
forceClose(webSocketState, s);
|
||||
return true;
|
||||
} else {
|
||||
data = (char *) inflatedFrame.data();
|
||||
length = inflatedFrame.length();
|
||||
}
|
||||
|
||||
|
||||
} else {
|
||||
// reset length and data ptrs
|
||||
length = webSocketData->fragmentBuffer.length();
|
||||
data = webSocketData->fragmentBuffer.data();
|
||||
}
|
||||
|
||||
/* Check text messages for Utf-8 validity */
|
||||
if (opCode == 1 && !protocol::isValidUtf8((unsigned char *) data, length)) {
|
||||
forceClose(webSocketState, s);
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Emit message and check for shutdown or close */
|
||||
if (webSocketContextData->messageHandler) {
|
||||
webSocketContextData->messageHandler((WebSocket<SSL, isServer> *) s, std::string_view(data, length), (uWS::OpCode) opCode);
|
||||
if (us_socket_is_closed(SSL, (us_socket_t *) s) || webSocketData->isShuttingDown) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
/* If we shutdown or closed, this will be taken care of elsewhere */
|
||||
webSocketData->fragmentBuffer.clear();
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* Control frames need the websocket to send pings, pongs and close */
|
||||
WebSocket<SSL, isServer> *webSocket = (WebSocket<SSL, isServer> *) s;
|
||||
|
||||
if (!remainingBytes && fin && !webSocketData->controlTipLength) {
|
||||
if (opCode == CLOSE) {
|
||||
auto closeFrame = protocol::parseClosePayload(data, length);
|
||||
webSocket->end(closeFrame.code, std::string_view(closeFrame.message, closeFrame.length));
|
||||
return true;
|
||||
} else {
|
||||
if (opCode == PING) {
|
||||
webSocket->send(std::string_view(data, length), (OpCode) OpCode::PONG);
|
||||
/*group->pingHandler(webSocket, data, length);
|
||||
if (webSocket->isClosed() || webSocket->isShuttingDown()) {
|
||||
return true;
|
||||
}*/
|
||||
} else if (opCode == PONG) {
|
||||
/*group->pongHandler(webSocket, data, length);
|
||||
if (webSocket->isClosed() || webSocket->isShuttingDown()) {
|
||||
return true;
|
||||
}*/
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* Here we never mind any size optimizations as we are in the worst possible path */
|
||||
webSocketData->fragmentBuffer.append(data, length);
|
||||
webSocketData->controlTipLength += (int) length;
|
||||
|
||||
if (!remainingBytes && fin) {
|
||||
char *controlBuffer = (char *) webSocketData->fragmentBuffer.data() + webSocketData->fragmentBuffer.length() - webSocketData->controlTipLength;
|
||||
if (opCode == CLOSE) {
|
||||
protocol::CloseFrame closeFrame = protocol::parseClosePayload(controlBuffer, webSocketData->controlTipLength);
|
||||
webSocket->end(closeFrame.code, std::string_view(closeFrame.message, closeFrame.length));
|
||||
return true;
|
||||
} else {
|
||||
if (opCode == PING) {
|
||||
webSocket->send(std::string_view(controlBuffer, webSocketData->controlTipLength), (OpCode) OpCode::PONG);
|
||||
/*group->pingHandler(webSocket, controlBuffer, webSocket->controlTipLength);
|
||||
if (webSocket->isClosed() || webSocket->isShuttingDown()) {
|
||||
return true;
|
||||
}*/
|
||||
} else if (opCode == PONG) {
|
||||
/*group->pongHandler(webSocket, controlBuffer, webSocket->controlTipLength);
|
||||
if (webSocket->isClosed() || webSocket->isShuttingDown()) {
|
||||
return true;
|
||||
}*/
|
||||
}
|
||||
}
|
||||
|
||||
/* Same here, we do not care for any particular smart allocation scheme */
|
||||
webSocketData->fragmentBuffer.resize(webSocketData->fragmentBuffer.length() - webSocketData->controlTipLength);
|
||||
webSocketData->controlTipLength = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool refusePayloadLength(uint64_t length, uWS::WebSocketState<isServer> *wState, void *s) {
|
||||
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
|
||||
/* Return true for refuse, false for accept */
|
||||
return webSocketContextData->maxPayloadLength < length;
|
||||
}
|
||||
|
||||
WebSocketContext<SSL, isServer> *init() {
|
||||
/* Adopting a socket does not trigger open event.
|
||||
* We arreive as WebSocket with timeout set and
|
||||
* any backpressure from HTTP state kept. */
|
||||
|
||||
/* Handle socket disconnections */
|
||||
us_socket_context_on_close(SSL, getSocketContext(), [](auto *s) {
|
||||
/* For whatever reason, if we already have emitted close event, do not emit it again */
|
||||
WebSocketData *webSocketData = (WebSocketData *) (us_socket_ext(SSL, s));
|
||||
if (!webSocketData->isShuttingDown) {
|
||||
/* Emit close event */
|
||||
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
|
||||
if (webSocketContextData->closeHandler) {
|
||||
webSocketContextData->closeHandler((WebSocket<SSL, true> *) s, 1006, {});
|
||||
}
|
||||
|
||||
/* Make sure to unsubscribe from any pub/sub node at exit */
|
||||
webSocketContextData->topicTree.unsubscribeAll(webSocketData->subscriber);
|
||||
delete webSocketData->subscriber;
|
||||
webSocketData->subscriber = nullptr;
|
||||
}
|
||||
|
||||
/* Destruct in-placed data struct */
|
||||
webSocketData->~WebSocketData();
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle WebSocket data streams */
|
||||
us_socket_context_on_data(SSL, getSocketContext(), [](auto *s, char *data, int length) {
|
||||
|
||||
/* We need the websocket data */
|
||||
WebSocketData *webSocketData = (WebSocketData *) (us_socket_ext(SSL, s));
|
||||
|
||||
/* When in websocket shutdown mode, we do not care for ANY message, whether responding close frame or not.
|
||||
* We only care for the TCP FIN really, not emitting any message after closing is key */
|
||||
if (webSocketData->isShuttingDown) {
|
||||
return s;
|
||||
}
|
||||
|
||||
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
auto *asyncSocket = (AsyncSocket<SSL> *) s;
|
||||
|
||||
/* Every time we get data and not in shutdown state we simply reset the timeout */
|
||||
asyncSocket->timeout(webSocketContextData->idleTimeout);
|
||||
|
||||
/* We always cork on data */
|
||||
asyncSocket->cork();
|
||||
|
||||
/* This parser has virtually no overhead */
|
||||
uWS::WebSocketProtocol<isServer, WebSocketContext<SSL, isServer>>::consume(data, length, (WebSocketState<isServer> *) webSocketData, s);
|
||||
|
||||
/* Uncorking a closed socekt is fine, in fact it is needed */
|
||||
asyncSocket->uncork();
|
||||
|
||||
/* If uncorking was successful and we are in shutdown state then send TCP FIN */
|
||||
if (asyncSocket->getBufferedAmount() == 0) {
|
||||
/* We can now be in shutdown state */
|
||||
if (webSocketData->isShuttingDown) {
|
||||
/* Shutting down a closed socket is handled by uSockets and just fine */
|
||||
asyncSocket->shutdown();
|
||||
}
|
||||
}
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle HTTP write out (note: SSL_read may trigger this spuriously, the app need to handle spurious calls) */
|
||||
us_socket_context_on_writable(SSL, getSocketContext(), [](auto *s) {
|
||||
|
||||
/* It makes sense to check for us_is_shut_down here and return if so, to avoid shutting down twice */
|
||||
if (us_socket_is_shut_down(SSL, (us_socket_t *) s)) {
|
||||
return s;
|
||||
}
|
||||
|
||||
AsyncSocket<SSL> *asyncSocket = (AsyncSocket<SSL> *) s;
|
||||
WebSocketData *webSocketData = (WebSocketData *)(us_socket_ext(SSL, s));
|
||||
|
||||
/* We store old backpressure since it is unclear whether write drained anything */
|
||||
int backpressure = asyncSocket->getBufferedAmount();
|
||||
|
||||
/* Drain as much as possible */
|
||||
asyncSocket->write(nullptr, 0);
|
||||
|
||||
/* Behavior: if we actively drain backpressure, always reset timeout (even if we are in shutdown) */
|
||||
if (backpressure < asyncSocket->getBufferedAmount()) {
|
||||
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
asyncSocket->timeout(webSocketContextData->idleTimeout);
|
||||
}
|
||||
|
||||
/* Are we in (WebSocket) shutdown mode? */
|
||||
if (webSocketData->isShuttingDown) {
|
||||
/* Check if we just now drained completely */
|
||||
if (asyncSocket->getBufferedAmount() == 0) {
|
||||
/* Now perform the actual TCP/TLS shutdown which was postponed due to backpressure */
|
||||
asyncSocket->shutdown();
|
||||
}
|
||||
} else if (backpressure > asyncSocket->getBufferedAmount()) {
|
||||
/* Only call drain if we actually drained backpressure */
|
||||
auto *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, us_socket_context(SSL, (us_socket_t *) s));
|
||||
if (webSocketContextData->drainHandler) {
|
||||
webSocketContextData->drainHandler((WebSocket<SSL, isServer> *) s);
|
||||
}
|
||||
/* No need to check for closed here as we leave the handler immediately*/
|
||||
}
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle FIN, HTTP does not support half-closed sockets, so simply close */
|
||||
us_socket_context_on_end(SSL, getSocketContext(), [](auto *s) {
|
||||
|
||||
/* If we get a fin, we just close I guess */
|
||||
us_socket_close(SSL, (us_socket_t *) s);
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
/* Handle socket timeouts, simply close them so to not confuse client with FIN */
|
||||
us_socket_context_on_timeout(SSL, getSocketContext(), [](auto *s) {
|
||||
|
||||
/* Timeout is very simple; we just close it */
|
||||
us_socket_close(SSL, (us_socket_t *) s);
|
||||
|
||||
return s;
|
||||
});
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
void free() {
|
||||
WebSocketContextData<SSL> *webSocketContextData = (WebSocketContextData<SSL> *) us_socket_context_ext(SSL, (us_socket_context_t *) this);
|
||||
webSocketContextData->~WebSocketContextData();
|
||||
|
||||
us_socket_context_free(SSL, (us_socket_context_t *) this);
|
||||
}
|
||||
|
||||
public:
|
||||
/* WebSocket contexts are always child contexts to a HTTP context so no SSL options are needed as they are inherited */
|
||||
static WebSocketContext *create(Loop *loop, us_socket_context_t *parentSocketContext) {
|
||||
WebSocketContext *webSocketContext = (WebSocketContext *) us_create_child_socket_context(SSL, parentSocketContext, sizeof(WebSocketContextData<SSL>));
|
||||
if (!webSocketContext) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
/* Init socket context data */
|
||||
new ((WebSocketContextData<SSL> *) us_socket_context_ext(SSL, (us_socket_context_t *)webSocketContext)) WebSocketContextData<SSL>;
|
||||
return webSocketContext->init();
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETCONTEXT_H
|
||||
100
test/compatibility/C/uWebSockets/src/WebSocketContextData.h
Normal file
100
test/compatibility/C/uWebSockets/src/WebSocketContextData.h
Normal file
@@ -0,0 +1,100 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETCONTEXTDATA_H
|
||||
#define UWS_WEBSOCKETCONTEXTDATA_H
|
||||
|
||||
#include "f2/function2.hpp"
|
||||
#include <string_view>
|
||||
|
||||
#include "WebSocketProtocol.h"
|
||||
#include "TopicTreeDraft.h"
|
||||
|
||||
namespace uWS {
|
||||
|
||||
template <bool, bool> struct WebSocket;
|
||||
|
||||
/* todo: this looks identical to WebSocketBehavior, why not just std::move that entire thing in? */
|
||||
|
||||
template <bool SSL>
|
||||
struct WebSocketContextData {
|
||||
/* The callbacks for this context */
|
||||
fu2::unique_function<void(WebSocket<SSL, true> *, std::string_view, uWS::OpCode)> messageHandler = nullptr;
|
||||
fu2::unique_function<void(WebSocket<SSL, true> *)> drainHandler = nullptr;
|
||||
fu2::unique_function<void(WebSocket<SSL, true> *, int, std::string_view)> closeHandler = nullptr;
|
||||
|
||||
/* Settings for this context */
|
||||
size_t maxPayloadLength = 0;
|
||||
int idleTimeout = 0;
|
||||
|
||||
/* There needs to be a maxBackpressure which will force close everything over that limit */
|
||||
size_t maxBackpressure = 0;
|
||||
|
||||
/* Each websocket context has a topic tree for pub/sub */
|
||||
TopicTree topicTree;
|
||||
|
||||
~WebSocketContextData() {
|
||||
/* We must unregister any loop post handler here */
|
||||
Loop::get()->removePostHandler(this);
|
||||
Loop::get()->removePreHandler(this);
|
||||
}
|
||||
|
||||
WebSocketContextData() : topicTree([this](Subscriber *s, std::string_view data) -> int {
|
||||
/* We rely on writing to regular asyncSockets */
|
||||
auto *asyncSocket = (AsyncSocket<SSL> *) s->user;
|
||||
|
||||
auto [written, failed] = asyncSocket->write(data.data(), (int) data.length());
|
||||
if (!failed) {
|
||||
asyncSocket->timeout(this->idleTimeout);
|
||||
} else {
|
||||
/* Note: this assumes we are not corked, as corking will swallow things and fail later on */
|
||||
|
||||
/* Check if we now have too much backpressure (todo: don't buffer up before check) */
|
||||
if ((unsigned int) asyncSocket->getBufferedAmount() > maxBackpressure) {
|
||||
asyncSocket->close();
|
||||
}
|
||||
}
|
||||
|
||||
/* Reserved, unused */
|
||||
return 0;
|
||||
}) {
|
||||
/* We empty for both pre and post just to make sure */
|
||||
Loop::get()->addPostHandler(this, [this](Loop *loop) {
|
||||
/* Commit pub/sub batches every loop iteration */
|
||||
topicTree.drain();
|
||||
});
|
||||
|
||||
Loop::get()->addPreHandler(this, [this](Loop *loop) {
|
||||
/* Commit pub/sub batches every loop iteration */
|
||||
topicTree.drain();
|
||||
});
|
||||
}
|
||||
|
||||
/* Helper for topictree publish, common path from app and ws */
|
||||
void publish(std::string_view topic, std::string_view message, OpCode opCode, bool compress) {
|
||||
/* We frame the message right here and only pass raw bytes to the pub/subber */
|
||||
char *dst = (char *) malloc(protocol::messageFrameSize(message.size()));
|
||||
size_t dst_length = protocol::formatMessage<true>(dst, message.data(), message.length(), opCode, message.length(), false);
|
||||
|
||||
topicTree.publish(topic, std::string_view(dst, dst_length));
|
||||
::free(dst);
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETCONTEXTDATA_H
|
||||
70
test/compatibility/C/uWebSockets/src/WebSocketData.h
Normal file
70
test/compatibility/C/uWebSockets/src/WebSocketData.h
Normal file
@@ -0,0 +1,70 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETDATA_H
|
||||
#define UWS_WEBSOCKETDATA_H
|
||||
|
||||
#include "WebSocketProtocol.h"
|
||||
#include "AsyncSocketData.h"
|
||||
#include "PerMessageDeflate.h"
|
||||
|
||||
#include <string>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
struct WebSocketData : AsyncSocketData<false>, WebSocketState<true> {
|
||||
template <bool, bool> friend struct WebSocketContext;
|
||||
template <bool, bool> friend struct WebSocket;
|
||||
private:
|
||||
std::string fragmentBuffer;
|
||||
int controlTipLength = 0;
|
||||
bool isShuttingDown = 0;
|
||||
enum CompressionStatus : char {
|
||||
DISABLED,
|
||||
ENABLED,
|
||||
COMPRESSED_FRAME
|
||||
} compressionStatus;
|
||||
|
||||
/* We might have a dedicated compressor */
|
||||
DeflationStream *deflationStream = nullptr;
|
||||
|
||||
/* We could be a subscriber */
|
||||
Subscriber *subscriber = nullptr;
|
||||
public:
|
||||
WebSocketData(bool perMessageDeflate, bool slidingCompression, std::string &&backpressure) : AsyncSocketData<false>(std::move(backpressure)), WebSocketState<true>() {
|
||||
compressionStatus = perMessageDeflate ? ENABLED : DISABLED;
|
||||
|
||||
/* Initialize the dedicated sliding window */
|
||||
if (perMessageDeflate && slidingCompression) {
|
||||
deflationStream = new DeflationStream;
|
||||
}
|
||||
}
|
||||
|
||||
~WebSocketData() {
|
||||
if (deflationStream) {
|
||||
delete deflationStream;
|
||||
}
|
||||
|
||||
if (subscriber) {
|
||||
delete subscriber;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETDATA_H
|
||||
169
test/compatibility/C/uWebSockets/src/WebSocketExtensions.h
Normal file
169
test/compatibility/C/uWebSockets/src/WebSocketExtensions.h
Normal file
@@ -0,0 +1,169 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETEXTENSIONS_H
|
||||
#define UWS_WEBSOCKETEXTENSIONS_H
|
||||
|
||||
#include <climits>
|
||||
#include <string_view>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
enum Options : unsigned int {
|
||||
NO_OPTIONS = 0,
|
||||
PERMESSAGE_DEFLATE = 1,
|
||||
SERVER_NO_CONTEXT_TAKEOVER = 2, // remove this
|
||||
CLIENT_NO_CONTEXT_TAKEOVER = 4, // remove this
|
||||
NO_DELAY = 8,
|
||||
SLIDING_DEFLATE_WINDOW = 16
|
||||
};
|
||||
|
||||
enum ExtensionTokens {
|
||||
TOK_PERMESSAGE_DEFLATE = 1838,
|
||||
TOK_SERVER_NO_CONTEXT_TAKEOVER = 2807,
|
||||
TOK_CLIENT_NO_CONTEXT_TAKEOVER = 2783,
|
||||
TOK_SERVER_MAX_WINDOW_BITS = 2372,
|
||||
TOK_CLIENT_MAX_WINDOW_BITS = 2348
|
||||
};
|
||||
|
||||
struct ExtensionsParser {
|
||||
private:
|
||||
int *lastInteger = nullptr;
|
||||
|
||||
public:
|
||||
bool perMessageDeflate = false;
|
||||
bool serverNoContextTakeover = false;
|
||||
bool clientNoContextTakeover = false;
|
||||
int serverMaxWindowBits = 0;
|
||||
int clientMaxWindowBits = 0;
|
||||
|
||||
int getToken(const char *&in, const char *stop) {
|
||||
while (in != stop && !isalnum(*in)) {
|
||||
in++;
|
||||
}
|
||||
|
||||
/* Don't care more than this for now */
|
||||
static_assert(SHRT_MIN > INT_MIN, "Integer overflow fix is invalid for this platform, report this as a bug!");
|
||||
|
||||
int hashedToken = 0;
|
||||
while (in != stop && (isalnum(*in) || *in == '-' || *in == '_')) {
|
||||
if (isdigit(*in)) {
|
||||
/* This check is a quick and incorrect fix for integer overflow
|
||||
* in oss-fuzz but we don't care as it doesn't matter either way */
|
||||
if (hashedToken > SHRT_MIN && hashedToken < SHRT_MAX) {
|
||||
hashedToken = hashedToken * 10 - (*in - '0');
|
||||
}
|
||||
} else {
|
||||
hashedToken += *in;
|
||||
}
|
||||
in++;
|
||||
}
|
||||
return hashedToken;
|
||||
}
|
||||
|
||||
ExtensionsParser(const char *data, size_t length) {
|
||||
const char *stop = data + length;
|
||||
int token = 1;
|
||||
for (; token && token != TOK_PERMESSAGE_DEFLATE; token = getToken(data, stop));
|
||||
|
||||
perMessageDeflate = (token == TOK_PERMESSAGE_DEFLATE);
|
||||
while ((token = getToken(data, stop))) {
|
||||
switch (token) {
|
||||
case TOK_PERMESSAGE_DEFLATE:
|
||||
return;
|
||||
case TOK_SERVER_NO_CONTEXT_TAKEOVER:
|
||||
serverNoContextTakeover = true;
|
||||
break;
|
||||
case TOK_CLIENT_NO_CONTEXT_TAKEOVER:
|
||||
clientNoContextTakeover = true;
|
||||
break;
|
||||
case TOK_SERVER_MAX_WINDOW_BITS:
|
||||
serverMaxWindowBits = 1;
|
||||
lastInteger = &serverMaxWindowBits;
|
||||
break;
|
||||
case TOK_CLIENT_MAX_WINDOW_BITS:
|
||||
clientMaxWindowBits = 1;
|
||||
lastInteger = &clientMaxWindowBits;
|
||||
break;
|
||||
default:
|
||||
if (token < 0 && lastInteger) {
|
||||
*lastInteger = -token;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
template <bool isServer>
|
||||
struct ExtensionsNegotiator {
|
||||
protected:
|
||||
int options;
|
||||
|
||||
public:
|
||||
ExtensionsNegotiator(int wantedOptions) {
|
||||
options = wantedOptions;
|
||||
}
|
||||
|
||||
std::string generateOffer() {
|
||||
std::string extensionsOffer;
|
||||
if (options & Options::PERMESSAGE_DEFLATE) {
|
||||
extensionsOffer += "permessage-deflate";
|
||||
|
||||
if (options & Options::CLIENT_NO_CONTEXT_TAKEOVER) {
|
||||
extensionsOffer += "; client_no_context_takeover";
|
||||
}
|
||||
|
||||
/* It is questionable sending this improves anything */
|
||||
/*if (options & Options::SERVER_NO_CONTEXT_TAKEOVER) {
|
||||
extensionsOffer += "; server_no_context_takeover";
|
||||
}*/
|
||||
}
|
||||
|
||||
return extensionsOffer;
|
||||
}
|
||||
|
||||
void readOffer(std::string_view offer) {
|
||||
if (isServer) {
|
||||
ExtensionsParser extensionsParser(offer.data(), offer.length());
|
||||
if ((options & PERMESSAGE_DEFLATE) && extensionsParser.perMessageDeflate) {
|
||||
if (extensionsParser.clientNoContextTakeover || (options & CLIENT_NO_CONTEXT_TAKEOVER)) {
|
||||
options |= CLIENT_NO_CONTEXT_TAKEOVER;
|
||||
}
|
||||
|
||||
/* We leave this option for us to read even if the client did not send it */
|
||||
if (extensionsParser.serverNoContextTakeover) {
|
||||
options |= SERVER_NO_CONTEXT_TAKEOVER;
|
||||
}/* else {
|
||||
options &= ~SERVER_NO_CONTEXT_TAKEOVER;
|
||||
}*/
|
||||
} else {
|
||||
options &= ~PERMESSAGE_DEFLATE;
|
||||
}
|
||||
} else {
|
||||
// todo!
|
||||
}
|
||||
}
|
||||
|
||||
int getNegotiatedOptions() {
|
||||
return options;
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETEXTENSIONS_H
|
||||
134
test/compatibility/C/uWebSockets/src/WebSocketHandshake.h
Normal file
134
test/compatibility/C/uWebSockets/src/WebSocketHandshake.h
Normal file
@@ -0,0 +1,134 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETHANDSHAKE_H
|
||||
#define UWS_WEBSOCKETHANDSHAKE_H
|
||||
|
||||
#include <cstdint>
|
||||
#include <cstddef>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
struct WebSocketHandshake {
|
||||
template <int N, typename T>
|
||||
struct static_for {
|
||||
void operator()(uint32_t *a, uint32_t *b) {
|
||||
static_for<N - 1, T>()(a, b);
|
||||
T::template f<N - 1>(a, b);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
struct static_for<0, T> {
|
||||
void operator()(uint32_t *a, uint32_t *hash) {}
|
||||
};
|
||||
|
||||
template <int state>
|
||||
struct Sha1Loop {
|
||||
static inline uint32_t rol(uint32_t value, size_t bits) {return (value << bits) | (value >> (32 - bits));}
|
||||
static inline uint32_t blk(uint32_t b[16], size_t i) {
|
||||
return rol(b[(i + 13) & 15] ^ b[(i + 8) & 15] ^ b[(i + 2) & 15] ^ b[i], 1);
|
||||
}
|
||||
|
||||
template <int i>
|
||||
static inline void f(uint32_t *a, uint32_t *b) {
|
||||
switch (state) {
|
||||
case 1:
|
||||
a[i % 5] += ((a[(3 + i) % 5] & (a[(2 + i) % 5] ^ a[(1 + i) % 5])) ^ a[(1 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(4 + i) % 5], 5);
|
||||
a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
|
||||
break;
|
||||
case 2:
|
||||
b[i] = blk(b, i);
|
||||
a[(1 + i) % 5] += ((a[(4 + i) % 5] & (a[(3 + i) % 5] ^ a[(2 + i) % 5])) ^ a[(2 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(5 + i) % 5], 5);
|
||||
a[(4 + i) % 5] = rol(a[(4 + i) % 5], 30);
|
||||
break;
|
||||
case 3:
|
||||
b[(i + 4) % 16] = blk(b, (i + 4) % 16);
|
||||
a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 4) % 16] + 0x6ed9eba1 + rol(a[(4 + i) % 5], 5);
|
||||
a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
|
||||
break;
|
||||
case 4:
|
||||
b[(i + 8) % 16] = blk(b, (i + 8) % 16);
|
||||
a[i % 5] += (((a[(3 + i) % 5] | a[(2 + i) % 5]) & a[(1 + i) % 5]) | (a[(3 + i) % 5] & a[(2 + i) % 5])) + b[(i + 8) % 16] + 0x8f1bbcdc + rol(a[(4 + i) % 5], 5);
|
||||
a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
|
||||
break;
|
||||
case 5:
|
||||
b[(i + 12) % 16] = blk(b, (i + 12) % 16);
|
||||
a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 12) % 16] + 0xca62c1d6 + rol(a[(4 + i) % 5], 5);
|
||||
a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
|
||||
break;
|
||||
case 6:
|
||||
b[i] += a[4 - i];
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
static inline void sha1(uint32_t hash[5], uint32_t b[16]) {
|
||||
uint32_t a[5] = {hash[4], hash[3], hash[2], hash[1], hash[0]};
|
||||
static_for<16, Sha1Loop<1>>()(a, b);
|
||||
static_for<4, Sha1Loop<2>>()(a, b);
|
||||
static_for<20, Sha1Loop<3>>()(a, b);
|
||||
static_for<20, Sha1Loop<4>>()(a, b);
|
||||
static_for<20, Sha1Loop<5>>()(a, b);
|
||||
static_for<5, Sha1Loop<6>>()(a, hash);
|
||||
}
|
||||
|
||||
static inline void base64(unsigned char *src, char *dst) {
|
||||
const char *b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||||
for (int i = 0; i < 18; i += 3) {
|
||||
*dst++ = b64[(src[i] >> 2) & 63];
|
||||
*dst++ = b64[((src[i] & 3) << 4) | ((src[i + 1] & 240) >> 4)];
|
||||
*dst++ = b64[((src[i + 1] & 15) << 2) | ((src[i + 2] & 192) >> 6)];
|
||||
*dst++ = b64[src[i + 2] & 63];
|
||||
}
|
||||
*dst++ = b64[(src[18] >> 2) & 63];
|
||||
*dst++ = b64[((src[18] & 3) << 4) | ((src[19] & 240) >> 4)];
|
||||
*dst++ = b64[((src[19] & 15) << 2)];
|
||||
*dst++ = '=';
|
||||
}
|
||||
|
||||
public:
|
||||
static inline void generate(const char input[24], char output[28]) {
|
||||
uint32_t b_output[5] = {
|
||||
0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0
|
||||
};
|
||||
uint32_t b_input[16] = {
|
||||
0, 0, 0, 0, 0, 0, 0x32353845, 0x41464135, 0x2d453931, 0x342d3437, 0x44412d39,
|
||||
0x3543412d, 0x43354142, 0x30444338, 0x35423131, 0x80000000
|
||||
};
|
||||
|
||||
for (int i = 0; i < 6; i++) {
|
||||
b_input[i] = (input[4 * i + 3] & 0xff) | (input[4 * i + 2] & 0xff) << 8 | (input[4 * i + 1] & 0xff) << 16 | (input[4 * i + 0] & 0xff) << 24;
|
||||
}
|
||||
sha1(b_output, b_input);
|
||||
uint32_t last_b[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 480};
|
||||
sha1(b_output, last_b);
|
||||
for (int i = 0; i < 5; i++) {
|
||||
uint32_t tmp = b_output[i];
|
||||
char *bytes = (char *) &b_output[i];
|
||||
bytes[3] = (char) (tmp & 0xff);
|
||||
bytes[2] = (char) ((tmp >> 8) & 0xff);
|
||||
bytes[1] = (char) ((tmp >> 16) & 0xff);
|
||||
bytes[0] = (char) ((tmp >> 24) & 0xff);
|
||||
}
|
||||
base64((unsigned char *) b_output, output);
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETHANDSHAKE_H
|
||||
443
test/compatibility/C/uWebSockets/src/WebSocketProtocol.h
Normal file
443
test/compatibility/C/uWebSockets/src/WebSocketProtocol.h
Normal file
@@ -0,0 +1,443 @@
|
||||
/*
|
||||
* Authored by Alex Hultman, 2018-2019.
|
||||
* Intellectual property of third-party.
|
||||
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef UWS_WEBSOCKETPROTOCOL_H
|
||||
#define UWS_WEBSOCKETPROTOCOL_H
|
||||
|
||||
#include <cstdint>
|
||||
#include <cstring>
|
||||
#include <cstdlib>
|
||||
|
||||
namespace uWS {
|
||||
|
||||
enum OpCode : unsigned char {
|
||||
TEXT = 1,
|
||||
BINARY = 2,
|
||||
CLOSE = 8,
|
||||
PING = 9,
|
||||
PONG = 10
|
||||
};
|
||||
|
||||
enum {
|
||||
CLIENT,
|
||||
SERVER
|
||||
};
|
||||
|
||||
// 24 bytes perfectly
|
||||
template <bool isServer>
|
||||
struct WebSocketState {
|
||||
public:
|
||||
static const unsigned int SHORT_MESSAGE_HEADER = isServer ? 6 : 2;
|
||||
static const unsigned int MEDIUM_MESSAGE_HEADER = isServer ? 8 : 4;
|
||||
static const unsigned int LONG_MESSAGE_HEADER = isServer ? 14 : 10;
|
||||
|
||||
// 16 bytes
|
||||
struct State {
|
||||
unsigned int wantsHead : 1;
|
||||
unsigned int spillLength : 4;
|
||||
int opStack : 2; // -1, 0, 1
|
||||
unsigned int lastFin : 1;
|
||||
|
||||
// 15 bytes
|
||||
unsigned char spill[LONG_MESSAGE_HEADER - 1];
|
||||
OpCode opCode[2];
|
||||
|
||||
State() {
|
||||
wantsHead = true;
|
||||
spillLength = 0;
|
||||
opStack = -1;
|
||||
lastFin = true;
|
||||
}
|
||||
|
||||
} state;
|
||||
|
||||
// 8 bytes
|
||||
unsigned int remainingBytes = 0;
|
||||
char mask[isServer ? 4 : 1];
|
||||
};
|
||||
|
||||
namespace protocol {
|
||||
|
||||
template <typename T>
|
||||
T bit_cast(char *c) {
|
||||
T val;
|
||||
memcpy(&val, c, sizeof(T));
|
||||
return val;
|
||||
}
|
||||
|
||||
/* Byte swap for little-endian systems */
|
||||
template <typename T>
|
||||
T cond_byte_swap(T value) {
|
||||
uint32_t endian_test = 1;
|
||||
if (*((char *)&endian_test)) {
|
||||
union {
|
||||
T i;
|
||||
uint8_t b[sizeof(T)];
|
||||
} src = { value }, dst;
|
||||
|
||||
for (unsigned int i = 0; i < sizeof(value); i++) {
|
||||
dst.b[i] = src.b[sizeof(value) - 1 - i];
|
||||
}
|
||||
|
||||
return dst.i;
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
// Based on utf8_check.c by Markus Kuhn, 2005
|
||||
// https://www.cl.cam.ac.uk/~mgk25/ucs/utf8_check.c
|
||||
// Optimized for predominantly 7-bit content by Alex Hultman, 2016
|
||||
// Licensed as Zlib, like the rest of this project
|
||||
static bool isValidUtf8(unsigned char *s, size_t length)
|
||||
{
|
||||
for (unsigned char *e = s + length; s != e; ) {
|
||||
if (s + 4 <= e) {
|
||||
uint32_t tmp;
|
||||
memcpy(&tmp, s, 4);
|
||||
if ((tmp & 0x80808080) == 0) {
|
||||
s += 4;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
while (!(*s & 0x80)) {
|
||||
if (++s == e) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
if ((s[0] & 0x60) == 0x40) {
|
||||
if (s + 1 >= e || (s[1] & 0xc0) != 0x80 || (s[0] & 0xfe) == 0xc0) {
|
||||
return false;
|
||||
}
|
||||
s += 2;
|
||||
} else if ((s[0] & 0xf0) == 0xe0) {
|
||||
if (s + 2 >= e || (s[1] & 0xc0) != 0x80 || (s[2] & 0xc0) != 0x80 ||
|
||||
(s[0] == 0xe0 && (s[1] & 0xe0) == 0x80) || (s[0] == 0xed && (s[1] & 0xe0) == 0xa0)) {
|
||||
return false;
|
||||
}
|
||||
s += 3;
|
||||
} else if ((s[0] & 0xf8) == 0xf0) {
|
||||
if (s + 3 >= e || (s[1] & 0xc0) != 0x80 || (s[2] & 0xc0) != 0x80 || (s[3] & 0xc0) != 0x80 ||
|
||||
(s[0] == 0xf0 && (s[1] & 0xf0) == 0x80) || (s[0] == 0xf4 && s[1] > 0x8f) || s[0] > 0xf4) {
|
||||
return false;
|
||||
}
|
||||
s += 4;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
struct CloseFrame {
|
||||
uint16_t code;
|
||||
char *message;
|
||||
size_t length;
|
||||
};
|
||||
|
||||
static inline CloseFrame parseClosePayload(char *src, size_t length) {
|
||||
CloseFrame cf = {};
|
||||
if (length >= 2) {
|
||||
memcpy(&cf.code, src, 2);
|
||||
cf = {cond_byte_swap<uint16_t>(cf.code), src + 2, length - 2};
|
||||
if (cf.code < 1000 || cf.code > 4999 || (cf.code > 1011 && cf.code < 4000) ||
|
||||
(cf.code >= 1004 && cf.code <= 1006) || !isValidUtf8((unsigned char *) cf.message, cf.length)) {
|
||||
return {};
|
||||
}
|
||||
}
|
||||
return cf;
|
||||
}
|
||||
|
||||
static inline size_t formatClosePayload(char *dst, uint16_t code, const char *message, size_t length) {
|
||||
if (code) {
|
||||
code = cond_byte_swap<uint16_t>(code);
|
||||
memcpy(dst, &code, 2);
|
||||
/* It is invalid to pass nullptr to memcpy, even though length is 0 */
|
||||
if (message) {
|
||||
memcpy(dst + 2, message, length);
|
||||
}
|
||||
return length + 2;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline size_t messageFrameSize(size_t messageSize) {
|
||||
if (messageSize < 126) {
|
||||
return 2 + messageSize;
|
||||
} else if (messageSize <= UINT16_MAX) {
|
||||
return 4 + messageSize;
|
||||
}
|
||||
return 10 + messageSize;
|
||||
}
|
||||
|
||||
enum {
|
||||
SND_CONTINUATION = 1,
|
||||
SND_NO_FIN = 2,
|
||||
SND_COMPRESSED = 64
|
||||
};
|
||||
|
||||
template <bool isServer>
|
||||
static inline size_t formatMessage(char *dst, const char *src, size_t length, OpCode opCode, size_t reportedLength, bool compressed) {
|
||||
size_t messageLength;
|
||||
size_t headerLength;
|
||||
if (reportedLength < 126) {
|
||||
headerLength = 2;
|
||||
dst[1] = (char) reportedLength;
|
||||
} else if (reportedLength <= UINT16_MAX) {
|
||||
headerLength = 4;
|
||||
dst[1] = 126;
|
||||
uint16_t tmp = cond_byte_swap<uint16_t>((uint16_t) reportedLength);
|
||||
memcpy(&dst[2], &tmp, sizeof(uint16_t));
|
||||
} else {
|
||||
headerLength = 10;
|
||||
dst[1] = 127;
|
||||
uint64_t tmp = cond_byte_swap<uint64_t>((uint64_t) reportedLength);
|
||||
memcpy(&dst[2], &tmp, sizeof(uint64_t));
|
||||
}
|
||||
|
||||
int flags = 0;
|
||||
dst[0] = (char) ((flags & SND_NO_FIN ? 0 : 128) | (compressed ? SND_COMPRESSED : 0));
|
||||
if (!(flags & SND_CONTINUATION)) {
|
||||
dst[0] |= (char) opCode;
|
||||
}
|
||||
|
||||
char mask[4];
|
||||
if (!isServer) {
|
||||
dst[1] |= 0x80;
|
||||
uint32_t random = rand();
|
||||
memcpy(mask, &random, 4);
|
||||
memcpy(dst + headerLength, &random, 4);
|
||||
headerLength += 4;
|
||||
}
|
||||
|
||||
messageLength = headerLength + length;
|
||||
memcpy(dst + headerLength, src, length);
|
||||
|
||||
if (!isServer) {
|
||||
|
||||
// overwrites up to 3 bytes outside of the given buffer!
|
||||
//WebSocketProtocol<isServer>::unmaskInplace(dst + headerLength, dst + headerLength + length, mask);
|
||||
|
||||
// this is not optimal
|
||||
char *start = dst + headerLength;
|
||||
char *stop = start + length;
|
||||
int i = 0;
|
||||
while (start != stop) {
|
||||
(*start++) ^= mask[i++ % 4];
|
||||
}
|
||||
}
|
||||
return messageLength;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// essentially this is only a parser
|
||||
template <const bool isServer, typename Impl>
|
||||
struct WIN32_EXPORT WebSocketProtocol {
|
||||
public:
|
||||
static const unsigned int SHORT_MESSAGE_HEADER = isServer ? 6 : 2;
|
||||
static const unsigned int MEDIUM_MESSAGE_HEADER = isServer ? 8 : 4;
|
||||
static const unsigned int LONG_MESSAGE_HEADER = isServer ? 14 : 10;
|
||||
|
||||
protected:
|
||||
static inline bool isFin(char *frame) {return *((unsigned char *) frame) & 128;}
|
||||
static inline unsigned char getOpCode(char *frame) {return *((unsigned char *) frame) & 15;}
|
||||
static inline unsigned char payloadLength(char *frame) {return ((unsigned char *) frame)[1] & 127;}
|
||||
static inline bool rsv23(char *frame) {return *((unsigned char *) frame) & 48;}
|
||||
static inline bool rsv1(char *frame) {return *((unsigned char *) frame) & 64;}
|
||||
|
||||
static inline void unmaskImprecise(char *dst, char *src, char *mask, unsigned int length) {
|
||||
for (unsigned int n = (length >> 2) + 1; n; n--) {
|
||||
*(dst++) = *(src++) ^ mask[0];
|
||||
*(dst++) = *(src++) ^ mask[1];
|
||||
*(dst++) = *(src++) ^ mask[2];
|
||||
*(dst++) = *(src++) ^ mask[3];
|
||||
}
|
||||
}
|
||||
|
||||
static inline void unmaskImpreciseCopyMask(char *dst, char *src, char *maskPtr, unsigned int length) {
|
||||
char mask[4] = {maskPtr[0], maskPtr[1], maskPtr[2], maskPtr[3]};
|
||||
unmaskImprecise(dst, src, mask, length);
|
||||
}
|
||||
|
||||
static inline void rotateMask(unsigned int offset, char *mask) {
|
||||
char originalMask[4] = {mask[0], mask[1], mask[2], mask[3]};
|
||||
mask[(0 + offset) % 4] = originalMask[0];
|
||||
mask[(1 + offset) % 4] = originalMask[1];
|
||||
mask[(2 + offset) % 4] = originalMask[2];
|
||||
mask[(3 + offset) % 4] = originalMask[3];
|
||||
}
|
||||
|
||||
static inline void unmaskInplace(char *data, char *stop, char *mask) {
|
||||
while (data < stop) {
|
||||
*(data++) ^= mask[0];
|
||||
*(data++) ^= mask[1];
|
||||
*(data++) ^= mask[2];
|
||||
*(data++) ^= mask[3];
|
||||
}
|
||||
}
|
||||
|
||||
template <unsigned int MESSAGE_HEADER, typename T>
|
||||
static inline bool consumeMessage(T payLength, char *&src, unsigned int &length, WebSocketState<isServer> *wState, void *user) {
|
||||
if (getOpCode(src)) {
|
||||
if (wState->state.opStack == 1 || (!wState->state.lastFin && getOpCode(src) < 2)) {
|
||||
Impl::forceClose(wState, user);
|
||||
return true;
|
||||
}
|
||||
wState->state.opCode[++wState->state.opStack] = (OpCode) getOpCode(src);
|
||||
} else if (wState->state.opStack == -1) {
|
||||
Impl::forceClose(wState, user);
|
||||
return true;
|
||||
}
|
||||
wState->state.lastFin = isFin(src);
|
||||
|
||||
if (Impl::refusePayloadLength(payLength, wState, user)) {
|
||||
Impl::forceClose(wState, user);
|
||||
return true;
|
||||
}
|
||||
|
||||
if (payLength + MESSAGE_HEADER <= length) {
|
||||
if (isServer) {
|
||||
unmaskImpreciseCopyMask(src + MESSAGE_HEADER - 4, src + MESSAGE_HEADER, src + MESSAGE_HEADER - 4, (unsigned int) payLength);
|
||||
if (Impl::handleFragment(src + MESSAGE_HEADER - 4, payLength, 0, wState->state.opCode[wState->state.opStack], isFin(src), wState, user)) {
|
||||
return true;
|
||||
}
|
||||
} else {
|
||||
if (Impl::handleFragment(src + MESSAGE_HEADER, payLength, 0, wState->state.opCode[wState->state.opStack], isFin(src), wState, user)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
if (isFin(src)) {
|
||||
wState->state.opStack--;
|
||||
}
|
||||
|
||||
src += payLength + MESSAGE_HEADER;
|
||||
length -= (unsigned int) (payLength + MESSAGE_HEADER);
|
||||
wState->state.spillLength = 0;
|
||||
return false;
|
||||
} else {
|
||||
wState->state.spillLength = 0;
|
||||
wState->state.wantsHead = false;
|
||||
wState->remainingBytes = (unsigned int) (payLength - length + MESSAGE_HEADER);
|
||||
bool fin = isFin(src);
|
||||
if (isServer) {
|
||||
memcpy(wState->mask, src + MESSAGE_HEADER - 4, 4);
|
||||
unmaskImprecise(src, src + MESSAGE_HEADER, wState->mask, length - MESSAGE_HEADER);
|
||||
rotateMask(4 - (length - MESSAGE_HEADER) % 4, wState->mask);
|
||||
} else {
|
||||
src += MESSAGE_HEADER;
|
||||
}
|
||||
Impl::handleFragment(src, length - MESSAGE_HEADER, wState->remainingBytes, wState->state.opCode[wState->state.opStack], fin, wState, user);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
static inline bool consumeContinuation(char *&src, unsigned int &length, WebSocketState<isServer> *wState, void *user) {
|
||||
if (wState->remainingBytes <= length) {
|
||||
if (isServer) {
|
||||
int n = wState->remainingBytes >> 2;
|
||||
unmaskInplace(src, src + n * 4, wState->mask);
|
||||
for (int i = 0, s = wState->remainingBytes % 4; i < s; i++) {
|
||||
src[n * 4 + i] ^= wState->mask[i];
|
||||
}
|
||||
}
|
||||
|
||||
if (Impl::handleFragment(src, wState->remainingBytes, 0, wState->state.opCode[wState->state.opStack], wState->state.lastFin, wState, user)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (wState->state.lastFin) {
|
||||
wState->state.opStack--;
|
||||
}
|
||||
|
||||
src += wState->remainingBytes;
|
||||
length -= wState->remainingBytes;
|
||||
wState->state.wantsHead = true;
|
||||
return true;
|
||||
} else {
|
||||
if (isServer) {
|
||||
unmaskInplace(src, src + ((length >> 2) + 1) * 4, wState->mask);
|
||||
}
|
||||
|
||||
wState->remainingBytes -= length;
|
||||
if (Impl::handleFragment(src, length, wState->remainingBytes, wState->state.opCode[wState->state.opStack], wState->state.lastFin, wState, user)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (isServer && length % 4) {
|
||||
rotateMask(4 - (length % 4), wState->mask);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
public:
|
||||
WebSocketProtocol() {
|
||||
|
||||
}
|
||||
|
||||
static inline void consume(char *src, unsigned int length, WebSocketState<isServer> *wState, void *user) {
|
||||
if (wState->state.spillLength) {
|
||||
src -= wState->state.spillLength;
|
||||
length += wState->state.spillLength;
|
||||
memcpy(src, wState->state.spill, wState->state.spillLength);
|
||||
}
|
||||
if (wState->state.wantsHead) {
|
||||
parseNext:
|
||||
while (length >= SHORT_MESSAGE_HEADER) {
|
||||
|
||||
// invalid reserved bits / invalid opcodes / invalid control frames / set compressed frame
|
||||
if ((rsv1(src) && !Impl::setCompressed(wState, user)) || rsv23(src) || (getOpCode(src) > 2 && getOpCode(src) < 8) ||
|
||||
getOpCode(src) > 10 || (getOpCode(src) > 2 && (!isFin(src) || payloadLength(src) > 125))) {
|
||||
Impl::forceClose(wState, user);
|
||||
return;
|
||||
}
|
||||
|
||||
if (payloadLength(src) < 126) {
|
||||
if (consumeMessage<SHORT_MESSAGE_HEADER, uint8_t>(payloadLength(src), src, length, wState, user)) {
|
||||
return;
|
||||
}
|
||||
} else if (payloadLength(src) == 126) {
|
||||
if (length < MEDIUM_MESSAGE_HEADER) {
|
||||
break;
|
||||
} else if(consumeMessage<MEDIUM_MESSAGE_HEADER, uint16_t>(protocol::cond_byte_swap<uint16_t>(protocol::bit_cast<uint16_t>(src + 2)), src, length, wState, user)) {
|
||||
return;
|
||||
}
|
||||
} else if (length < LONG_MESSAGE_HEADER) {
|
||||
break;
|
||||
} else if (consumeMessage<LONG_MESSAGE_HEADER, uint64_t>(protocol::cond_byte_swap<uint64_t>(protocol::bit_cast<uint64_t>(src + 2)), src, length, wState, user)) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (length) {
|
||||
memcpy(wState->state.spill, src, length);
|
||||
wState->state.spillLength = length & 0xf;
|
||||
}
|
||||
} else if (consumeContinuation(src, length, wState, user)) {
|
||||
goto parseNext;
|
||||
}
|
||||
}
|
||||
|
||||
static const int CONSUME_POST_PADDING = 4;
|
||||
static const int CONSUME_PRE_PADDING = LONG_MESSAGE_HEADER - 1;
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
#endif // UWS_WEBSOCKETPROTOCOL_H
|
||||
23
test/compatibility/C/uWebSockets/src/f2/LICENSE.txt
Normal file
23
test/compatibility/C/uWebSockets/src/f2/LICENSE.txt
Normal file
@@ -0,0 +1,23 @@
|
||||
Boost Software License - Version 1.0 - August 17th, 2003
|
||||
|
||||
Permission is hereby granted, free of charge, to any person or organization
|
||||
obtaining a copy of the software and accompanying documentation covered by
|
||||
this license (the "Software") to use, reproduce, display, distribute,
|
||||
execute, and transmit the Software, and to prepare derivative works of the
|
||||
Software, and to permit third-parties to whom the Software is furnished to
|
||||
do so, all subject to the following:
|
||||
|
||||
The copyright notices in the Software and this entire statement, including
|
||||
the above license grant, this restriction and the following disclaimer,
|
||||
must be included in all copies of the Software, in whole or in part, and
|
||||
all derivative works of the Software, unless such copies or derivative
|
||||
works are solely in the form of machine-executable object code generated by
|
||||
a source language processor.
|
||||
|
||||
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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
1764
test/compatibility/C/uWebSockets/src/f2/function2.hpp
Normal file
1764
test/compatibility/C/uWebSockets/src/f2/function2.hpp
Normal file
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user