mirror of https://gitee.com/bigwinds/arangodb
592 lines
21 KiB
C++
592 lines
21 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 Dr. Frank Celler
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/// @author Achim Brandt
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////////////////////////////////////////////////////////////////////////////////
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#include "V8ClientConnection.h"
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#include "Basics/StringUtils.h"
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#include "Basics/VelocyPackHelper.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-json.h"
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#include "V8/v8-globals.h"
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using namespace arangodb::basics;
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using namespace arangodb::httpclient;
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using namespace arangodb::rest;
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using namespace arangodb::v8client;
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using namespace std;
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V8ClientConnection::V8ClientConnection(
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Endpoint* endpoint, std::string databaseName, std::string const& username,
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std::string const& password, double requestTimeout, double connectTimeout,
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size_t numRetries, uint32_t sslProtocol, 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(
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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) << "out of memory"; FATAL_ERROR_EXIT();
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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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std::map<std::string, std::string> headerFields;
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std::unique_ptr<SimpleHttpResult> result(
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_client->request(HttpRequest::HTTP_REQUEST_GET,
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"/_api/version?details=true", nullptr, 0, headerFields));
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if (result == nullptr || !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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} 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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try {
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std::shared_ptr<VPackBuilder> parsedBody = result->getBodyVelocyPack();
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VPackSlice const body = parsedBody->slice();
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std::string const server =
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arangodb::basics::VelocyPackHelper::getStringValue(body, "server",
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"");
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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 = arangodb::basics::VelocyPackHelper::getStringValue(
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body, "version", "");
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VPackSlice const details = body.get("details");
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if (details.isObject()) {
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VPackSlice const mode = details.get("mode");
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if (mode.isString()) {
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_mode = mode.copyString();
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}
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}
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}
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} catch (...) {
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// Ignore all parse errors
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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->getHttpReturnCode() > 0) {
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_lastErrorMessage = StringUtils::itoa(result->getHttpReturnCode()) +
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": " + result->getHttpReturnMessage();
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}
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}
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}
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}
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V8ClientConnection::~V8ClientConnection() {
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delete _httpResult;
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delete _client;
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delete _connection;
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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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std::string V8ClientConnection::rewriteLocation(void* data,
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std::string const& 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 && location[1] == '_' && location[2] == 'd' &&
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location[3] == 'b' && 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() { return _connection->isConnected(); }
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set the current operation to interrupted
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////////////////////////////////////////////////////////////////////////////////
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void V8ClientConnection::setInterrupted(bool value) {
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_connection->setInterrupted(value);
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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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std::string const& 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(std::string const& 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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std::string const& V8ClientConnection::getVersion() { return _version; }
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns the server mode
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////////////////////////////////////////////////////////////////////////////////
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std::string const& V8ClientConnection::getMode() { return _mode; }
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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() { return _lastHttpReturnCode; }
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the last error message
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////////////////////////////////////////////////////////////////////////////////
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std::string const& 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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arangodb::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(
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v8::Isolate* isolate, std::string const& location,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_GET, location, "",
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headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_GET, location, "",
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_DELETE, location,
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"", headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_DELETE, location, "",
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_HEAD, location, "",
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headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_HEAD, location, "",
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location, std::string const& body,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_OPTIONS, location,
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body, headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_OPTIONS, location, body,
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location, std::string const& body,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_POST, location,
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body, headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_POST, location, body,
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location, char const* body,
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size_t bodySize, std::map<std::string, std::string> const& headerFields) {
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return requestData(isolate, HttpRequest::HTTP_REQUEST_POST, location, body,
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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(
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v8::Isolate* isolate, std::string const& location, std::string const& body,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_PUT, location,
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body, headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_PUT, location, body,
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headerFields);
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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(
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v8::Isolate* isolate, std::string const& location, std::string const& body,
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std::map<std::string, std::string> const& headerFields, bool raw) {
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if (raw) {
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return requestDataRaw(isolate, HttpRequest::HTTP_REQUEST_PATCH, location,
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body, headerFields);
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}
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return requestData(isolate, HttpRequest::HTTP_REQUEST_PATCH, location, body,
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headerFields);
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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(
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v8::Isolate* isolate, HttpRequest::HttpRequestType method,
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std::string const& location, char const* body, size_t bodySize,
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std::map<std::string, std::string> const& headerFields) {
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_lastErrorMessage = "";
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_lastHttpReturnCode = 0;
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delete _httpResult;
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_httpResult = nullptr;
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_httpResult =
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_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(
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v8::Isolate* isolate, HttpRequest::HttpRequestType method,
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std::string const& location, std::string const& body,
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std::map<std::string, std::string> const& headerFields) {
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_lastErrorMessage = "";
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_lastHttpReturnCode = 0;
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delete _httpResult;
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_httpResult = nullptr;
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if (body.empty()) {
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_httpResult = _client->request(method, location, nullptr, 0, headerFields);
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} else {
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_httpResult = _client->request(method, location, body.c_str(),
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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 == nullptr) {
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return scope.Escape<v8::Value>(v8::Undefined(isolate));
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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";
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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"),
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v8::Boolean::New(isolate, true));
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result->ForceSet(TRI_V8_ASCII_STRING("code"),
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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"),
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v8::Integer::New(isolate, errorNumber));
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result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"),
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TRI_V8_STD_STRING(_lastErrorMessage));
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return scope.Escape<v8::Value>(result);
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}
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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>(
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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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// 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"),
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v8::Integer::New(isolate, _lastHttpReturnCode));
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if (_lastHttpReturnCode >= 400) {
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std::string returnMessage(_httpResult->getHttpReturnMessage());
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result->ForceSet(TRI_V8_ASCII_STRING("error"),
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v8::Boolean::New(isolate, true));
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result->ForceSet(TRI_V8_ASCII_STRING("errorNum"),
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v8::Integer::New(isolate, _lastHttpReturnCode));
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result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"),
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TRI_V8_STD_STRING(returnMessage));
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} else {
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result->ForceSet(TRI_V8_ASCII_STRING("error"),
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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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/// @brief executes a request and returns raw response
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////////////////////////////////////////////////////////////////////////////////
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v8::Handle<v8::Value> V8ClientConnection::requestDataRaw(
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v8::Isolate* isolate, HttpRequest::HttpRequestType method,
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std::string const& location, std::string const& body,
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std::map<std::string, std::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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delete _httpResult;
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_httpResult = nullptr;
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if (body.empty()) {
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_httpResult = _client->request(method, location, nullptr, 0, headerFields);
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} else {
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_httpResult = _client->request(method, location, body.c_str(),
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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";
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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("code"),
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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"),
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v8::Integer::New(isolate, errorNumber));
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result->ForceSet(TRI_V8_ASCII_STRING("errorMessage"),
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TRI_V8_STD_STRING(_lastErrorMessage));
|
|
|
|
return scope.Escape<v8::Value>(result);
|
|
}
|
|
|
|
// 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) {
|
|
std::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);
|
|
}
|