144 lines
4.2 KiB
PHP
144 lines
4.2 KiB
PHP
<?php
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/*
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* Copyright 2012 Google Inc.
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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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if (!class_exists('Google_Client')) {
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require_once dirname(__FILE__) . '/../autoload.php';
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}
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/**
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* Class to handle batched requests to the Google API service.
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*/
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class Google_Http_Batch
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{
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/** @var string Multipart Boundary. */
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private $boundary;
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/** @var array service requests to be executed. */
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private $requests = array();
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/** @var Google_Client */
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private $client;
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private $expected_classes = array();
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private $base_path;
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public function __construct(Google_Client $client, $boundary = false)
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{
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$this->client = $client;
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$this->base_path = $this->client->getBasePath();
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$this->expected_classes = array();
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$boundary = (false == $boundary) ? mt_rand() : $boundary;
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$this->boundary = str_replace('"', '', $boundary);
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}
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public function add(Google_Http_Request $request, $key = false)
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{
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if (false == $key) {
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$key = mt_rand();
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}
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$this->requests[$key] = $request;
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}
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public function execute()
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{
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$body = '';
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/** @var Google_Http_Request $req */
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foreach ($this->requests as $key => $req) {
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$body .= "--{$this->boundary}\n";
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$body .= $req->toBatchString($key) . "\n";
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$this->expected_classes["response-" . $key] = $req->getExpectedClass();
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}
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$body = rtrim($body);
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$body .= "\n--{$this->boundary}--";
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$url = $this->base_path . '/batch';
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$httpRequest = new Google_Http_Request($url, 'POST');
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$httpRequest->setRequestHeaders(
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array('Content-Type' => 'multipart/mixed; boundary=' . $this->boundary)
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);
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$httpRequest->setPostBody($body);
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$response = $this->client->getIo()->makeRequest($httpRequest);
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return $this->parseResponse($response);
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}
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public function parseResponse(Google_Http_Request $response)
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{
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$contentType = $response->getResponseHeader('content-type');
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$contentType = explode(';', $contentType);
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$boundary = false;
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foreach ($contentType as $part) {
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$part = (explode('=', $part, 2));
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if (isset($part[0]) && 'boundary' == trim($part[0])) {
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$boundary = $part[1];
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}
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}
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$body = $response->getResponseBody();
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if ($body) {
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$body = str_replace("--$boundary--", "--$boundary", $body);
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$parts = explode("--$boundary", $body);
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$responses = array();
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foreach ($parts as $part) {
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$part = trim($part);
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if (!empty($part)) {
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list($metaHeaders, $part) = explode("\r\n\r\n", $part, 2);
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$metaHeaders = $this->client->getIo()->getHttpResponseHeaders($metaHeaders);
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$status = substr($part, 0, strpos($part, "\n"));
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$status = explode(" ", $status);
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$status = $status[1];
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list($partHeaders, $partBody) = $this->client->getIo()->ParseHttpResponse($part, false);
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$response = new Google_Http_Request("");
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$response->setResponseHttpCode($status);
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$response->setResponseHeaders($partHeaders);
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$response->setResponseBody($partBody);
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// Need content id.
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$key = $metaHeaders['content-id'];
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if (isset($this->expected_classes[$key]) &&
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strlen($this->expected_classes[$key]) > 0) {
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$class = $this->expected_classes[$key];
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$response->setExpectedClass($class);
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}
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try {
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$response = Google_Http_REST::decodeHttpResponse($response, $this->client);
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$responses[$key] = $response;
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} catch (Google_Service_Exception $e) {
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// Store the exception as the response, so successful responses
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// can be processed.
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$responses[$key] = $e;
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}
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}
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}
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return $responses;
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}
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return null;
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}
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}
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