mirror of https://gitee.com/bigwinds/arangodb
144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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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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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Achim Brandt
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#include "GeneralCommTask.h"
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#include "Basics/HybridLogicalClock.h"
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#include "Basics/MutexLocker.h"
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#include "Basics/StaticStrings.h"
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#include "Basics/StringBuffer.h"
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#include "GeneralServer/GeneralServer.h"
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#include "GeneralServer/RestHandler.h"
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#include "GeneralServer/RestHandlerFactory.h"
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#include "Logger/Logger.h"
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#include "RestServer/RestServerFeature.h"
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#include "Scheduler/Scheduler.h"
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#include "Scheduler/SchedulerFeature.h"
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#include "VocBase/server.h"
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using namespace arangodb;
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief static initializers
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////////////////////////////////////////////////////////////////////////////////
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GeneralCommTask::GeneralCommTask(GeneralServer* server, TRI_socket_t socket,
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ConnectionInfo&& info, double keepAliveTimeout)
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: Task("GeneralCommTask"),
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SocketTask(socket, keepAliveTimeout),
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_server(server),
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_request(nullptr),
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_connectionInfo(std::move(info)),
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_protocol("unknown"),
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_protocolVersion(GeneralRequest::ProtocolVersion::UNKNOWN),
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_startThread(false),
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_writeBuffers(),
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_writeBuffersStats(),
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_isChunked(false),
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_requestPending(false),
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_setupDone(false) {
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LOG(TRACE) << "connection established, client "
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<< TRI_get_fd_or_handle_of_socket(socket) << ", server ip "
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<< _connectionInfo.serverAddress << ", server port "
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<< _connectionInfo.serverPort << ", client ip "
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<< _connectionInfo.clientAddress << ", client port "
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<< _connectionInfo.clientPort;
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}
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GeneralCommTask::~GeneralCommTask() {
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LOG(TRACE) << "connection closed, client "
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<< TRI_get_fd_or_handle_of_socket(_commSocket);
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// free write buffers and statistics
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for (auto& i : _writeBuffers) delete i;
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for (auto& i : _writeBuffersStats) TRI_ReleaseRequestStatistics(i);
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// free request
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delete _request;
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}
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void GeneralCommTask::handleResponse(GeneralResponse* response) {
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_requestPending = false;
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_isChunked = false;
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_startThread = false;
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if (response == nullptr) {
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handleSimpleError(GeneralResponse::ResponseCode::SERVER_ERROR);
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} else {
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addResponse(response);
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}
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}
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void GeneralCommTask::handleSimpleError(GeneralResponse::ResponseCode code) {
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HttpResponse response(code);
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resetState(true);
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addResponse(&response);
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}
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void GeneralCommTask::handleSimpleError(
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GeneralResponse::ResponseCode responseCode, int errorNum,
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std::string const& errorMessage) {
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HttpResponse response(responseCode);
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VPackBuilder builder;
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builder.openObject();
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builder.add(StaticStrings::Error, VPackValue(true));
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builder.add(StaticStrings::ErrorNum, VPackValue(errorNum));
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builder.add(StaticStrings::ErrorMessage, VPackValue(errorMessage));
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builder.add(StaticStrings::Code, VPackValue((int)responseCode));
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builder.close();
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try {
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response.setPayload(_request, builder.slice(), true,
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VPackOptions::Defaults);
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clearRequest();
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handleResponse(&response);
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} catch (...) {
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resetState(true);
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addResponse(&response);
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}
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}
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bool GeneralCommTask::setup(Scheduler* scheduler, EventLoop loop) {
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bool ok = SocketTask::setup(scheduler, loop);
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if (!ok) return false;
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_scheduler = scheduler;
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_loop = loop;
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setupDone();
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return true;
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}
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bool GeneralCommTask::handleEvent(EventToken token, EventType events) {
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bool result = SocketTask::handleEvent(token, events);
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if (_clientClosed) _scheduler->destroyTask(this);
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return result;
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}
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void GeneralCommTask::handleTimeout() {
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_clientClosed = true;
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_server->handleCommunicationClosed(this);
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}
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