mirror of https://gitee.com/bigwinds/arangodb
650 lines
24 KiB
C++
650 lines
24 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief v8 client connection
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2014 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 Dr. Frank Celler
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/// @author Achim Brandt
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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2008-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "V8ClientConnection.h"
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#include <sstream>
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#include "Basics/JsonHelper.h"
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#include "Basics/StringUtils.h"
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#include "Basics/json.h"
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#include "Basics/tri-strings.h"
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#include "Rest/HttpRequest.h"
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#include "Rest/HttpResponse.h"
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#include "SimpleHttpClient/GeneralClientConnection.h"
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#include "SimpleHttpClient/SimpleHttpClient.h"
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#include "SimpleHttpClient/SimpleHttpResult.h"
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#include "V8/v8-conv.h"
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#include "V8/v8-json.h"
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#include "V8/v8-globals.h"
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using namespace triagens::basics;
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using namespace triagens::httpclient;
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using namespace triagens::rest;
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using namespace triagens::v8client;
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using namespace std;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief constructor
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////////////////////////////////////////////////////////////////////////////////
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V8ClientConnection::V8ClientConnection (Endpoint* endpoint,
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string databaseName,
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const string& username,
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const string& password,
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double requestTimeout,
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double connectTimeout,
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size_t numRetries,
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uint32_t sslProtocol,
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bool warn)
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: _connection(nullptr),
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_databaseName(databaseName),
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_lastHttpReturnCode(0),
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_lastErrorMessage(""),
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_client(nullptr),
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_httpResult(nullptr) {
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_connection = GeneralClientConnection::factory(endpoint, requestTimeout, connectTimeout, numRetries, sslProtocol);
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if (_connection == nullptr) {
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throw "out of memory";
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}
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_client = new SimpleHttpClient(_connection, requestTimeout, warn);
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if (_client == nullptr) {
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LOG_FATAL_AND_EXIT("out of memory");
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}
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_client->setLocationRewriter(this, &rewriteLocation);
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_client->setUserNamePassword("/", username, password);
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// connect to server and get version number
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map<string, string> headerFields;
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SimpleHttpResult* result = _client->request(HttpRequest::HTTP_REQUEST_GET, "/_api/version?details=true", nullptr, 0, headerFields);
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if (! result || ! result->isComplete()) {
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// save error message
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_lastErrorMessage = _client->getErrorMessage();
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_lastHttpReturnCode = 500;
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}
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else {
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_lastHttpReturnCode = result->getHttpReturnCode();
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if (result->getHttpReturnCode() == HttpResponse::OK) {
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// default value
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_version = "arango";
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_mode = "unknown mode";
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// convert response body to json
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std::unique_ptr<TRI_json_t> json(TRI_JsonString(TRI_UNKNOWN_MEM_ZONE, result->getBody().c_str()));
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if (json != nullptr) {
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// look up "server" value
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const string server = JsonHelper::getStringValue(json.get(), "server", "");
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// "server" value is a string and content is "arango"
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if (server == "arango") {
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// look up "version" value
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_version = JsonHelper::getStringValue(json.get(), "version", "");
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auto const* details = TRI_LookupObjectJson(json.get(), "details");
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if (TRI_IsObjectJson(details)) {
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auto const* mode = TRI_LookupObjectJson(details, "mode");
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if (TRI_IsStringJson(mode)) {
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_mode = std::string(mode->_value._string.data, mode->_value._string.length - 1);
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}
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}
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}
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}
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}
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else {
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// initial request for /_api/version returned some non-HTTP 200 response.
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// now set up an error message
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_lastErrorMessage = _client->getErrorMessage();
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if (result && result->getHttpReturnCode() > 0) {
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_lastErrorMessage = StringUtils::itoa(result->getHttpReturnCode()) + ": " + result->getHttpReturnMessage();
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}
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}
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}
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if (result) {
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delete result;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destructor
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////////////////////////////////////////////////////////////////////////////////
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V8ClientConnection::~V8ClientConnection () {
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if (_httpResult) {
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delete _httpResult;
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}
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if (_client) {
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delete _client;
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}
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if (_connection) {
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delete _connection;
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief request location rewriter (injects database name)
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////////////////////////////////////////////////////////////////////////////////
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string V8ClientConnection::rewriteLocation (void* data,
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const string& location) {
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V8ClientConnection* c = static_cast<V8ClientConnection*>(data);
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TRI_ASSERT(c != nullptr);
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if (c->_databaseName.empty()) {
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// no database name provided
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return location;
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}
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if (location[0] == '/') {
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if (location.size() >= 5 &&
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location[1] == '_' &&
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location[2] == 'd' &&
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location[3] == 'b' &&
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location[4] == '/') {
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// location already contains /_db/
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return location;
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}
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return "/_db/" + c->_databaseName + location;
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}
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return "/_db/" + c->_databaseName + "/" + location;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns true if it is connected
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////////////////////////////////////////////////////////////////////////////////
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bool V8ClientConnection::isConnected () {
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return _connection->isConnected();
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns the current database name
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////////////////////////////////////////////////////////////////////////////////
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const string& V8ClientConnection::getDatabaseName () {
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return _databaseName;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set the current database name
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////////////////////////////////////////////////////////////////////////////////
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void V8ClientConnection::setDatabaseName (const string& databaseName) {
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_databaseName = databaseName;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns the version and build number of the arango server
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////////////////////////////////////////////////////////////////////////////////
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const string& V8ClientConnection::getVersion () {
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return _version;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns the server mode
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////////////////////////////////////////////////////////////////////////////////
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const string& V8ClientConnection::getMode () {
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return _mode;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the last http return code
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////////////////////////////////////////////////////////////////////////////////
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int V8ClientConnection::getLastHttpReturnCode () {
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return _lastHttpReturnCode;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the last error message
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////////////////////////////////////////////////////////////////////////////////
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const std::string& V8ClientConnection::getErrorMessage () {
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return _lastErrorMessage;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the simple http client
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////////////////////////////////////////////////////////////////////////////////
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triagens::httpclient::SimpleHttpClient* V8ClientConnection::getHttpClient() {
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return _client;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "GET" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::getData (v8::Isolate* isolate,
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std::string const& location,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_GET, location, "", headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_GET, location, "", headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "DELETE" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::deleteData (v8::Isolate* isolate,
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std::string const& location,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_DELETE, location, "", headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_DELETE, location, "", headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "HEAD" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::headData (v8::Isolate* isolate,
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std::string const& location,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_HEAD, location, "", headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_HEAD, location, "", headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do an "OPTIONS" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::optionsData (v8::Isolate* isolate,
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std::string const& location,
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std::string const& body,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_OPTIONS, location, body, headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_OPTIONS, location, body, headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "POST" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::postData (v8::Isolate* isolate,
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std::string const& location,
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std::string const& body,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_POST, location, body, headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_POST, location, body, headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "POST" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::postData (v8::Isolate* isolate,
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std::string const& location,
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const char* body,
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const size_t bodySize,
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map<string, string> const& headerFields) {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_POST, location, body, bodySize, headerFields);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "PUT" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::putData (v8::Isolate* isolate,
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std::string const& location,
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std::string const& body,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_PUT, location, body, headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_PUT, location, body, headerFields);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief do a "PATCH" request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::patchData (v8::Isolate* isolate,
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std::string const& location,
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std::string const& body,
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map<string, string> const& headerFields,
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bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_PATCH, location, body, headerFields);
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}
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else {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_PATCH, location, body, headerFields);
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- private functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief executes a request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::requestData (v8::Isolate* isolate,
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HttpRequest::HttpRequestType method,
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string const& location,
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const char* body,
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const size_t bodySize,
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map<string, string> const& headerFields) {
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_lastErrorMessage = "";
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_lastHttpReturnCode = 0;
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if (_httpResult != nullptr) {
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delete _httpResult;
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}
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_httpResult = _client->request(method, location, body, bodySize, headerFields);
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return handleResult(isolate);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief executes a request
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::requestData (v8::Isolate* isolate,
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HttpRequest::HttpRequestType method,
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string const& location,
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string const& body,
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map<string, string> const& headerFields) {
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_lastErrorMessage = "";
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_lastHttpReturnCode = 0;
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if (_httpResult != nullptr) {
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delete _httpResult;
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_httpResult = nullptr;
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}
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if (body.empty()) {
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_httpResult = _client->request(method, location, nullptr, 0, headerFields);
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}
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else {
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_httpResult = _client->request(method, location, body.c_str(), body.length(), headerFields);
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}
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return handleResult(isolate);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief handles a result
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::handleResult (v8::Isolate* isolate) {
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v8::EscapableHandleScope scope(isolate);
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if (! _httpResult->isComplete()) {
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// not complete
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_lastErrorMessage = _client->getErrorMessage();
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if (_lastErrorMessage.empty()) {
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_lastErrorMessage = "Unknown error";
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}
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_lastHttpReturnCode = HttpResponse::SERVER_ERROR;
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v8::Handle<v8::Object> result = v8::Object::New(isolate);
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result->ForceSet(TRI_V8_ASCII_STRING("error"), v8::Boolean::New(isolate, true));
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result->ForceSet(TRI_V8_ASCII_STRING("code"), v8::Integer::New(isolate, HttpResponse::SERVER_ERROR));
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int errorNumber = 0;
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switch (_httpResult->getResultType()) {
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case (SimpleHttpResult::COULD_NOT_CONNECT) :
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errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_CONNECT;
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break;
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case (SimpleHttpResult::READ_ERROR) :
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errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_READ;
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break;
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case (SimpleHttpResult::WRITE_ERROR) :
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errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_WRITE;
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break;
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default:
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errorNumber = TRI_SIMPLE_CLIENT_UNKNOWN_ERROR;
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break;
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}
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result->ForceSet(TRI_V8_ASCII_STRING("errorNum"), v8::Integer::New(isolate, errorNumber));
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result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"), TRI_V8_STD_STRING(_lastErrorMessage));
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return scope.Escape<v8::Value>(result);
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}
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else {
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// complete
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_lastHttpReturnCode = _httpResult->getHttpReturnCode();
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// got a body
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StringBuffer& sb = _httpResult->getBody();
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if (sb.length() > 0) {
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isolate->GetCurrentContext()->Global();
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if (_httpResult->isJson()) {
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return scope.Escape<v8::Value>(TRI_FromJsonString(isolate, sb.c_str(), nullptr));
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}
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// return body as string
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return scope.Escape<v8::Value>(TRI_V8_STD_STRING(sb));
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}
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else {
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// no body
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v8::Handle<v8::Object> result = v8::Object::New(isolate);
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result->ForceSet(TRI_V8_ASCII_STRING("code"), v8::Integer::New(isolate, _lastHttpReturnCode));
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if (_lastHttpReturnCode >= 400) {
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string returnMessage(_httpResult->getHttpReturnMessage());
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result->ForceSet(TRI_V8_ASCII_STRING("error"), v8::Boolean::New(isolate, true));
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result->ForceSet(TRI_V8_ASCII_STRING("errorNum"), v8::Integer::New(isolate, _lastHttpReturnCode));
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result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"), TRI_V8_STD_STRING(returnMessage));
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}
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else {
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result->ForceSet(TRI_V8_ASCII_STRING("error"), v8::Boolean::New(isolate, false));
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}
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return scope.Escape<v8::Value>(result);
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief executes a request and returns raw response
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::requestDataRaw (v8::Isolate* isolate,
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HttpRequest::HttpRequestType method,
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string const& location,
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string const& body,
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map<string, string> const& headerFields) {
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v8::EscapableHandleScope scope(isolate);
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_lastErrorMessage = "";
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_lastHttpReturnCode = 0;
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if (_httpResult) {
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delete _httpResult;
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_httpResult = nullptr;
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}
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if (body.empty()) {
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_httpResult = _client->request(method, location, nullptr, 0, headerFields);
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}
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else {
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_httpResult = _client->request(method, location, body.c_str(), body.length(), headerFields);
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}
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if (!_httpResult->isComplete()) {
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// not complete
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_lastErrorMessage = _client->getErrorMessage();
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if (_lastErrorMessage.empty()) {
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_lastErrorMessage = "Unknown error";
|
|
}
|
|
|
|
_lastHttpReturnCode = HttpResponse::SERVER_ERROR;
|
|
|
|
v8::Handle<v8::Object> result = v8::Object::New(isolate);
|
|
result->ForceSet(TRI_V8_ASCII_STRING("code"), v8::Integer::New(isolate, HttpResponse::SERVER_ERROR));
|
|
|
|
int errorNumber = 0;
|
|
|
|
switch (_httpResult->getResultType()) {
|
|
case (SimpleHttpResult::COULD_NOT_CONNECT) :
|
|
errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_CONNECT;
|
|
break;
|
|
|
|
case (SimpleHttpResult::READ_ERROR) :
|
|
errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_READ;
|
|
break;
|
|
|
|
case (SimpleHttpResult::WRITE_ERROR) :
|
|
errorNumber = TRI_SIMPLE_CLIENT_COULD_NOT_WRITE;
|
|
break;
|
|
|
|
default:
|
|
errorNumber = TRI_SIMPLE_CLIENT_UNKNOWN_ERROR;
|
|
break;
|
|
}
|
|
|
|
result->ForceSet(TRI_V8_ASCII_STRING("errorNum"), v8::Integer::New(isolate, errorNumber));
|
|
result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"), TRI_V8_STD_STRING(_lastErrorMessage));
|
|
|
|
return scope.Escape<v8::Value>(result);
|
|
}
|
|
else {
|
|
// complete
|
|
_lastHttpReturnCode = _httpResult->getHttpReturnCode();
|
|
|
|
// create raw response
|
|
v8::Handle<v8::Object> result = v8::Object::New(isolate);
|
|
|
|
result->ForceSet(TRI_V8_ASCII_STRING("code"), v8::Integer::New(isolate, _lastHttpReturnCode));
|
|
|
|
if (_lastHttpReturnCode >= 400) {
|
|
string returnMessage(_httpResult->getHttpReturnMessage());
|
|
|
|
result->ForceSet(TRI_V8_ASCII_STRING("error"), v8::Boolean::New(isolate, true));
|
|
result->ForceSet(TRI_V8_ASCII_STRING("errorNum"), v8::Integer::New(isolate, _lastHttpReturnCode));
|
|
result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"), TRI_V8_STD_STRING(returnMessage));
|
|
}
|
|
else {
|
|
result->ForceSet(TRI_V8_ASCII_STRING("error"), v8::Boolean::New(isolate, false));
|
|
}
|
|
|
|
// got a body, copy it into the result
|
|
StringBuffer& sb = _httpResult->getBody();
|
|
if (sb.length() > 0) {
|
|
v8::Handle<v8::String> b = TRI_V8_STD_STRING(sb);
|
|
|
|
result->ForceSet(TRI_V8_ASCII_STRING("body"), b);
|
|
}
|
|
|
|
// copy all headers
|
|
v8::Handle<v8::Object> headers = v8::Object::New(isolate);
|
|
auto const& hf = _httpResult->getHeaderFields();
|
|
|
|
for (auto const& it : hf) {
|
|
v8::Handle<v8::String> key = TRI_V8_STD_STRING(it.first);
|
|
v8::Handle<v8::String> val = TRI_V8_STD_STRING(it.second);
|
|
|
|
headers->ForceSet(key, val);
|
|
}
|
|
|
|
result->ForceSet(TRI_V8_ASCII_STRING("headers"), headers);
|
|
|
|
// and returns
|
|
return scope.Escape<v8::Value>(result);
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- END-OF-FILE
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|