Google's OpenID Connect method

$google_client_id & $google_client_secret must be added to db.inc.php!

5 files changed, 1312 insertions, 0 deletions

diff --git a/includes/google-api-php-client-master/src/Google/Http/Batch.php b/includes/google-api-php-client-master/src/Google/Http/Batch.php
new file mode 100644
index 0000000..6286f31
--- /dev/null
+++ b/includes/google-api-php-client-master/src/Google/Http/Batch.php
@@ -0,0 +1,143 @@
+<?php
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * Class to handle batched requests to the Google API service.
+ */
+class Google_Http_Batch
+{
+  /** @var string Multipart Boundary. */
+  private $boundary;
+
+  /** @var array service requests to be executed. */
+  private $requests = array();
+
+  /** @var Google_Client */
+  private $client;
+
+  private $expected_classes = array();
+
+  private $base_path;
+
+  public function __construct(Google_Client $client, $boundary = false)
+  {
+    $this->client = $client;
+    $this->base_path = $this->client->getBasePath();
+    $this->expected_classes = array();
+    $boundary = (false == $boundary) ? mt_rand() : $boundary;
+    $this->boundary = str_replace('"', '', $boundary);
+  }
+
+  public function add(Google_Http_Request $request, $key = false)
+  {
+    if (false == $key) {
+      $key = mt_rand();
+    }
+
+    $this->requests[$key] = $request;
+  }
+
+  public function execute()
+  {
+    $body = '';
+
+    /** @var Google_Http_Request $req */
+    foreach ($this->requests as $key => $req) {
+      $body .= "--{$this->boundary}\n";
+      $body .= $req->toBatchString($key) . "\n";
+      $this->expected_classes["response-" . $key] = $req->getExpectedClass();
+    }
+
+    $body = rtrim($body);
+    $body .= "\n--{$this->boundary}--";
+
+    $url = $this->base_path . '/batch';
+    $httpRequest = new Google_Http_Request($url, 'POST');
+    $httpRequest->setRequestHeaders(
+        array('Content-Type' => 'multipart/mixed; boundary=' . $this->boundary)
+    );
+
+    $httpRequest->setPostBody($body);
+    $response = $this->client->getIo()->makeRequest($httpRequest);
+
+    return $this->parseResponse($response);
+  }
+
+  public function parseResponse(Google_Http_Request $response)
+  {
+    $contentType = $response->getResponseHeader('content-type');
+    $contentType = explode(';', $contentType);
+    $boundary = false;
+    foreach ($contentType as $part) {
+      $part = (explode('=', $part, 2));
+      if (isset($part[0]) && 'boundary' == trim($part[0])) {
+        $boundary = $part[1];
+      }
+    }
+
+    $body = $response->getResponseBody();
+    if ($body) {
+      $body = str_replace("--$boundary--", "--$boundary", $body);
+      $parts = explode("--$boundary", $body);
+      $responses = array();
+
+      foreach ($parts as $part) {
+        $part = trim($part);
+        if (!empty($part)) {
+          list($metaHeaders, $part) = explode("\r\n\r\n", $part, 2);
+          $metaHeaders = $this->client->getIo()->getHttpResponseHeaders($metaHeaders);
+
+          $status = substr($part, 0, strpos($part, "\n"));
+          $status = explode(" ", $status);
+          $status = $status[1];
+
+          list($partHeaders, $partBody) = $this->client->getIo()->ParseHttpResponse($part, false);
+          $response = new Google_Http_Request("");
+          $response->setResponseHttpCode($status);
+          $response->setResponseHeaders($partHeaders);
+          $response->setResponseBody($partBody);
+
+          // Need content id.
+          $key = $metaHeaders['content-id'];
+
+          if (isset($this->expected_classes[$key]) &&
+              strlen($this->expected_classes[$key]) > 0) {
+            $class = $this->expected_classes[$key];
+            $response->setExpectedClass($class);
+          }
+
+          try {
+            $response = Google_Http_REST::decodeHttpResponse($response, $this->client);
+            $responses[$key] = $response;
+          } catch (Google_Service_Exception $e) {
+            // Store the exception as the response, so successful responses
+            // can be processed.
+            $responses[$key] = $e;
+          }
+        }
+      }
+
+      return $responses;
+    }
+
+    return null;
+  }
+}
diff --git a/includes/google-api-php-client-master/src/Google/Http/CacheParser.php b/includes/google-api-php-client-master/src/Google/Http/CacheParser.php
new file mode 100644
index 0000000..a6167ad
--- /dev/null
+++ b/includes/google-api-php-client-master/src/Google/Http/CacheParser.php
@@ -0,0 +1,185 @@
+<?php
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * Implement the caching directives specified in rfc2616. This
+ * implementation is guided by the guidance offered in rfc2616-sec13.
+ */
+class Google_Http_CacheParser
+{
+  public static $CACHEABLE_HTTP_METHODS = array('GET', 'HEAD');
+  public static $CACHEABLE_STATUS_CODES = array('200', '203', '300', '301');
+
+  /**
+   * Check if an HTTP request can be cached by a private local cache.
+   *
+   * @static
+   * @param Google_Http_Request $resp
+   * @return bool True if the request is cacheable.
+   * False if the request is uncacheable.
+   */
+  public static function isRequestCacheable(Google_Http_Request $resp)
+  {
+    $method = $resp->getRequestMethod();
+    if (! in_array($method, self::$CACHEABLE_HTTP_METHODS)) {
+      return false;
+    }
+
+    // Don't cache authorized requests/responses.
+    // [rfc2616-14.8] When a shared cache receives a request containing an
+    // Authorization field, it MUST NOT return the corresponding response
+    // as a reply to any other request...
+    if ($resp->getRequestHeader("authorization")) {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Check if an HTTP response can be cached by a private local cache.
+   *
+   * @static
+   * @param Google_Http_Request $resp
+   * @return bool True if the response is cacheable.
+   * False if the response is un-cacheable.
+   */
+  public static function isResponseCacheable(Google_Http_Request $resp)
+  {
+    // First, check if the HTTP request was cacheable before inspecting the
+    // HTTP response.
+    if (false == self::isRequestCacheable($resp)) {
+      return false;
+    }
+
+    $code = $resp->getResponseHttpCode();
+    if (! in_array($code, self::$CACHEABLE_STATUS_CODES)) {
+      return false;
+    }
+
+    // The resource is uncacheable if the resource is already expired and
+    // the resource doesn't have an ETag for revalidation.
+    $etag = $resp->getResponseHeader("etag");
+    if (self::isExpired($resp) && $etag == false) {
+      return false;
+    }
+
+    // [rfc2616-14.9.2]  If [no-store is] sent in a response, a cache MUST NOT
+    // store any part of either this response or the request that elicited it.
+    $cacheControl = $resp->getParsedCacheControl();
+    if (isset($cacheControl['no-store'])) {
+      return false;
+    }
+
+    // Pragma: no-cache is an http request directive, but is occasionally
+    // used as a response header incorrectly.
+    $pragma = $resp->getResponseHeader('pragma');
+    if ($pragma == 'no-cache' || strpos($pragma, 'no-cache') !== false) {
+      return false;
+    }
+
+    // [rfc2616-14.44] Vary: * is extremely difficult to cache. "It implies that
+    // a cache cannot determine from the request headers of a subsequent request
+    // whether this response is the appropriate representation."
+    // Given this, we deem responses with the Vary header as uncacheable.
+    $vary = $resp->getResponseHeader('vary');
+    if ($vary) {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * @static
+   * @param Google_Http_Request $resp
+   * @return bool True if the HTTP response is considered to be expired.
+   * False if it is considered to be fresh.
+   */
+  public static function isExpired(Google_Http_Request $resp)
+  {
+    // HTTP/1.1 clients and caches MUST treat other invalid date formats,
+    // especially including the value “0”, as in the past.
+    $parsedExpires = false;
+    $responseHeaders = $resp->getResponseHeaders();
+
+    if (isset($responseHeaders['expires'])) {
+      $rawExpires = $responseHeaders['expires'];
+      // Check for a malformed expires header first.
+      if (empty($rawExpires) || (is_numeric($rawExpires) && $rawExpires <= 0)) {
+        return true;
+      }
+
+      // See if we can parse the expires header.
+      $parsedExpires = strtotime($rawExpires);
+      if (false == $parsedExpires || $parsedExpires <= 0) {
+        return true;
+      }
+    }
+
+    // Calculate the freshness of an http response.
+    $freshnessLifetime = false;
+    $cacheControl = $resp->getParsedCacheControl();
+    if (isset($cacheControl['max-age'])) {
+      $freshnessLifetime = $cacheControl['max-age'];
+    }
+
+    $rawDate = $resp->getResponseHeader('date');
+    $parsedDate = strtotime($rawDate);
+
+    if (empty($rawDate) || false == $parsedDate) {
+      // We can't default this to now, as that means future cache reads
+      // will always pass with the logic below, so we will require a
+      // date be injected if not supplied.
+      throw new Google_Exception("All cacheable requests must have creation dates.");
+    }
+
+    if (false == $freshnessLifetime && isset($responseHeaders['expires'])) {
+      $freshnessLifetime = $parsedExpires - $parsedDate;
+    }
+
+    if (false == $freshnessLifetime) {
+      return true;
+    }
+
+    // Calculate the age of an http response.
+    $age = max(0, time() - $parsedDate);
+    if (isset($responseHeaders['age'])) {
+      $age = max($age, strtotime($responseHeaders['age']));
+    }
+
+    return $freshnessLifetime <= $age;
+  }
+
+  /**
+   * Determine if a cache entry should be revalidated with by the origin.
+   *
+   * @param Google_Http_Request $response
+   * @return bool True if the entry is expired, else return false.
+   */
+  public static function mustRevalidate(Google_Http_Request $response)
+  {
+    // [13.3] When a cache has a stale entry that it would like to use as a
+    // response to a client's request, it first has to check with the origin
+    // server to see if its cached entry is still usable.
+    return self::isExpired($response);
+  }
+}
diff --git a/includes/google-api-php-client-master/src/Google/Http/MediaFileUpload.php b/includes/google-api-php-client-master/src/Google/Http/MediaFileUpload.php
new file mode 100644
index 0000000..b7c9fea
--- /dev/null
+++ b/includes/google-api-php-client-master/src/Google/Http/MediaFileUpload.php
@@ -0,0 +1,302 @@
+<?php
+/**
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * Manage large file uploads, which may be media but can be any type
+ * of sizable data.
+ */
+class Google_Http_MediaFileUpload
+{
+  const UPLOAD_MEDIA_TYPE = 'media';
+  const UPLOAD_MULTIPART_TYPE = 'multipart';
+  const UPLOAD_RESUMABLE_TYPE = 'resumable';
+
+  /** @var string $mimeType */
+  private $mimeType;
+
+  /** @var string $data */
+  private $data;
+
+  /** @var bool $resumable */
+  private $resumable;
+
+  /** @var int $chunkSize */
+  private $chunkSize;
+
+  /** @var int $size */
+  private $size;
+
+  /** @var string $resumeUri */
+  private $resumeUri;
+
+  /** @var int $progress */
+  private $progress;
+
+  /** @var Google_Client */
+  private $client;
+
+  /** @var Google_Http_Request */
+  private $request;
+
+  /** @var string */
+  private $boundary;
+
+  /**
+   * Result code from last HTTP call
+   * @var int
+   */
+  private $httpResultCode;
+
+  /**
+   * @param $mimeType string
+   * @param $data string The bytes you want to upload.
+   * @param $resumable bool
+   * @param bool $chunkSize File will be uploaded in chunks of this many bytes.
+   * only used if resumable=True
+   */
+  public function __construct(
+      Google_Client $client,
+      Google_Http_Request $request,
+      $mimeType,
+      $data,
+      $resumable = false,
+      $chunkSize = false,
+      $boundary = false
+  ) {
+    $this->client = $client;
+    $this->request = $request;
+    $this->mimeType = $mimeType;
+    $this->data = $data;
+    $this->size = strlen($this->data);
+    $this->resumable = $resumable;
+    if (!$chunkSize) {
+      $chunkSize = 256 * 1024;
+    }
+    $this->chunkSize = $chunkSize;
+    $this->progress = 0;
+    $this->boundary = $boundary;
+
+    // Process Media Request
+    $this->process();
+  }
+
+  /**
+   * Set the size of the file that is being uploaded.
+   * @param $size - int file size in bytes
+   */
+  public function setFileSize($size)
+  {
+    $this->size = $size;
+  }
+
+  /**
+   * Return the progress on the upload
+   * @return int progress in bytes uploaded.
+   */
+  public function getProgress()
+  {
+    return $this->progress;
+  }
+
+  /**
+   * Return the HTTP result code from the last call made.
+   * @return int code
+   */
+  public function getHttpResultCode()
+  {
+    return $this->httpResultCode;
+  }
+
+  /**
+   * Send the next part of the file to upload.
+   * @param [$chunk] the next set of bytes to send. If false will used $data passed
+   * at construct time.
+   */
+  public function nextChunk($chunk = false)
+  {
+    if (false == $this->resumeUri) {
+      $this->resumeUri = $this->getResumeUri();
+    }
+
+    if (false == $chunk) {
+      $chunk = substr($this->data, $this->progress, $this->chunkSize);
+    }
+
+    $lastBytePos = $this->progress + strlen($chunk) - 1;
+    $headers = array(
+      'content-range' => "bytes $this->progress-$lastBytePos/$this->size",
+      'content-type' => $this->request->getRequestHeader('content-type'),
+      'content-length' => $this->chunkSize,
+      'expect' => '',
+    );
+
+    $httpRequest = new Google_Http_Request(
+        $this->resumeUri,
+        'PUT',
+        $headers,
+        $chunk
+    );
+
+    if ($this->client->getClassConfig("Google_Http_Request", "enable_gzip_for_uploads")) {
+      $httpRequest->enableGzip();
+    } else {
+      $httpRequest->disableGzip();
+    }
+
+    $response = $this->client->getIo()->makeRequest($httpRequest);
+    $response->setExpectedClass($this->request->getExpectedClass());
+    $code = $response->getResponseHttpCode();
+    $this->httpResultCode = $code;
+
+    if (308 == $code) {
+      // Track the amount uploaded.
+      $range = explode('-', $response->getResponseHeader('range'));
+      $this->progress = $range[1] + 1;
+
+      // Allow for changing upload URLs.
+      $location = $response->getResponseHeader('location');
+      if ($location) {
+        $this->resumeUri = $location;
+      }
+
+      // No problems, but upload not complete.
+      return false;
+    } else {
+      return Google_Http_REST::decodeHttpResponse($response, $this->client);
+    }
+  }
+
+  /**
+   * @param $meta
+   * @param $params
+   * @return array|bool
+   * @visible for testing
+   */
+  private function process()
+  {
+    $postBody = false;
+    $contentType = false;
+
+    $meta = $this->request->getPostBody();
+    $meta = is_string($meta) ? json_decode($meta, true) : $meta;
+
+    $uploadType = $this->getUploadType($meta);
+    $this->request->setQueryParam('uploadType', $uploadType);
+    $this->transformToUploadUrl();
+    $mimeType = $this->mimeType ?
+        $this->mimeType :
+        $this->request->getRequestHeader('content-type');
+
+    if (self::UPLOAD_RESUMABLE_TYPE == $uploadType) {
+      $contentType = $mimeType;
+      $postBody = is_string($meta) ? $meta : json_encode($meta);
+    } else if (self::UPLOAD_MEDIA_TYPE == $uploadType) {
+      $contentType = $mimeType;
+      $postBody = $this->data;
+    } else if (self::UPLOAD_MULTIPART_TYPE == $uploadType) {
+      // This is a multipart/related upload.
+      $boundary = $this->boundary ? $this->boundary : mt_rand();
+      $boundary = str_replace('"', '', $boundary);
+      $contentType = 'multipart/related; boundary=' . $boundary;
+      $related = "--$boundary\r\n";
+      $related .= "Content-Type: application/json; charset=UTF-8\r\n";
+      $related .= "\r\n" . json_encode($meta) . "\r\n";
+      $related .= "--$boundary\r\n";
+      $related .= "Content-Type: $mimeType\r\n";
+      $related .= "Content-Transfer-Encoding: base64\r\n";
+      $related .= "\r\n" . base64_encode($this->data) . "\r\n";
+      $related .= "--$boundary--";
+      $postBody = $related;
+    }
+
+    $this->request->setPostBody($postBody);
+
+    if (isset($contentType) && $contentType) {
+      $contentTypeHeader['content-type'] = $contentType;
+      $this->request->setRequestHeaders($contentTypeHeader);
+    }
+  }
+
+  private function transformToUploadUrl()
+  {
+    $base = $this->request->getBaseComponent();
+    $this->request->setBaseComponent($base . '/upload');
+  }
+
+  /**
+   * Valid upload types:
+   * - resumable (UPLOAD_RESUMABLE_TYPE)
+   * - media (UPLOAD_MEDIA_TYPE)
+   * - multipart (UPLOAD_MULTIPART_TYPE)
+   * @param $meta
+   * @return string
+   * @visible for testing
+   */
+  public function getUploadType($meta)
+  {
+    if ($this->resumable) {
+      return self::UPLOAD_RESUMABLE_TYPE;
+    }
+
+    if (false == $meta && $this->data) {
+      return self::UPLOAD_MEDIA_TYPE;
+    }
+
+    return self::UPLOAD_MULTIPART_TYPE;
+  }
+
+  private function getResumeUri()
+  {
+    $result = null;
+    $body = $this->request->getPostBody();
+    if ($body) {
+      $headers = array(
+        'content-type' => 'application/json; charset=UTF-8',
+        'content-length' => Google_Utils::getStrLen($body),
+        'x-upload-content-type' => $this->mimeType,
+        'x-upload-content-length' => $this->size,
+        'expect' => '',
+      );
+      $this->request->setRequestHeaders($headers);
+    }
+
+    $response = $this->client->getIo()->makeRequest($this->request);
+    $location = $response->getResponseHeader('location');
+    $code = $response->getResponseHttpCode();
+
+    if (200 == $code && true == $location) {
+      return $location;
+    }
+    $message = $code;
+    $body = @json_decode($response->getResponseBody());
+    if (!empty( $body->error->errors ) ) {
+      $message .= ': ';
+      foreach ($body->error->errors as $error) {
+        $message .= "{$error->domain}, {$error->message};";
+      }
+      $message = rtrim($message, ';');
+    }
+
+    $error = "Failed to start the resumable upload (HTTP {$message})";
+    $this->client->getLogger()->error($error);
+    throw new Google_Exception($error);
+  }
+}
diff --git a/includes/google-api-php-client-master/src/Google/Http/REST.php b/includes/google-api-php-client-master/src/Google/Http/REST.php
new file mode 100644
index 0000000..10b23e5
--- /dev/null
+++ b/includes/google-api-php-client-master/src/Google/Http/REST.php
@@ -0,0 +1,178 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * This class implements the RESTful transport of apiServiceRequest()'s
+ */
+class Google_Http_REST
+{
+  /**
+   * Executes a Google_Http_Request and (if applicable) automatically retries
+   * when errors occur.
+   *
+   * @param Google_Client $client
+   * @param Google_Http_Request $req
+   * @return array decoded result
+   * @throws Google_Service_Exception on server side error (ie: not authenticated,
+   *  invalid or malformed post body, invalid url)
+   */
+  public static function execute(Google_Client $client, Google_Http_Request $req)
+  {
+    $runner = new Google_Task_Runner(
+        $client,
+        sprintf('%s %s', $req->getRequestMethod(), $req->getUrl()),
+        array(get_class(), 'doExecute'),
+        array($client, $req)
+    );
+
+    return $runner->run();
+  }
+
+  /**
+   * Executes a Google_Http_Request
+   *
+   * @param Google_Client $client
+   * @param Google_Http_Request $req
+   * @return array decoded result
+   * @throws Google_Service_Exception on server side error (ie: not authenticated,
+   *  invalid or malformed post body, invalid url)
+   */
+  public static function doExecute(Google_Client $client, Google_Http_Request $req)
+  {
+    $httpRequest = $client->getIo()->makeRequest($req);
+    $httpRequest->setExpectedClass($req->getExpectedClass());
+    return self::decodeHttpResponse($httpRequest, $client);
+  }
+
+  /**
+   * Decode an HTTP Response.
+   * @static
+   * @throws Google_Service_Exception
+   * @param Google_Http_Request $response The http response to be decoded.
+   * @param Google_Client $client
+   * @return mixed|null
+   */
+  public static function decodeHttpResponse($response, Google_Client $client = null)
+  {
+    $code = $response->getResponseHttpCode();
+    $body = $response->getResponseBody();
+    $decoded = null;
+
+    if ((intVal($code)) >= 300) {
+      $decoded = json_decode($body, true);
+      $err = 'Error calling ' . $response->getRequestMethod() . ' ' . $response->getUrl();
+      if (isset($decoded['error']) &&
+          isset($decoded['error']['message'])  &&
+          isset($decoded['error']['code'])) {
+        // if we're getting a json encoded error definition, use that instead of the raw response
+        // body for improved readability
+        $err .= ": ({$decoded['error']['code']}) {$decoded['error']['message']}";
+      } else {
+        $err .= ": ($code) $body";
+      }
+
+      $errors = null;
+      // Specific check for APIs which don't return error details, such as Blogger.
+      if (isset($decoded['error']) && isset($decoded['error']['errors'])) {
+        $errors = $decoded['error']['errors'];
+      }
+
+      $map = null;
+      if ($client) {
+        $client->getLogger()->error(
+            $err,
+            array('code' => $code, 'errors' => $errors)
+        );
+
+        $map = $client->getClassConfig(
+            'Google_Service_Exception',
+            'retry_map'
+        );
+      }
+      throw new Google_Service_Exception($err, $code, null, $errors, $map);
+    }
+
+    // Only attempt to decode the response, if the response code wasn't (204) 'no content'
+    if ($code != '204') {
+      if ($response->getExpectedRaw()) {
+        return $body;
+      }
+      
+      $decoded = json_decode($body, true);
+      if ($decoded === null || $decoded === "") {
+        $error = "Invalid json in service response: $body";
+        if ($client) {
+          $client->getLogger()->error($error);
+        }
+        throw new Google_Service_Exception($error);
+      }
+
+      if ($response->getExpectedClass()) {
+        $class = $response->getExpectedClass();
+        $decoded = new $class($decoded);
+      }
+    }
+    return $decoded;
+  }
+
+  /**
+   * Parse/expand request parameters and create a fully qualified
+   * request uri.
+   * @static
+   * @param string $servicePath
+   * @param string $restPath
+   * @param array $params
+   * @return string $requestUrl
+   */
+  public static function createRequestUri($servicePath, $restPath, $params)
+  {
+    $requestUrl = $servicePath . $restPath;
+    $uriTemplateVars = array();
+    $queryVars = array();
+    foreach ($params as $paramName => $paramSpec) {
+      if ($paramSpec['type'] == 'boolean') {
+        $paramSpec['value'] = ($paramSpec['value']) ? 'true' : 'false';
+      }
+      if ($paramSpec['location'] == 'path') {
+        $uriTemplateVars[$paramName] = $paramSpec['value'];
+      } else if ($paramSpec['location'] == 'query') {
+        if (isset($paramSpec['repeated']) && is_array($paramSpec['value'])) {
+          foreach ($paramSpec['value'] as $value) {
+            $queryVars[] = $paramName . '=' . rawurlencode($value);
+          }
+        } else {
+          $queryVars[] = $paramName . '=' . rawurlencode($paramSpec['value']);
+        }
+      }
+    }
+
+    if (count($uriTemplateVars)) {
+      $uriTemplateParser = new Google_Utils_URITemplate();
+      $requestUrl = $uriTemplateParser->parse($requestUrl, $uriTemplateVars);
+    }
+
+    if (count($queryVars)) {
+      $requestUrl .= '?' . implode($queryVars, '&');
+    }
+
+    return $requestUrl;
+  }
+}
diff --git a/includes/google-api-php-client-master/src/Google/Http/Request.php b/includes/google-api-php-client-master/src/Google/Http/Request.php
new file mode 100644
index 0000000..b3113d5
--- /dev/null
+++ b/includes/google-api-php-client-master/src/Google/Http/Request.php
@@ -0,0 +1,504 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+if (!class_exists('Google_Client')) {
+  require_once dirname(__FILE__) . '/../autoload.php';
+}
+
+/**
+ * HTTP Request to be executed by IO classes. Upon execution, the
+ * responseHttpCode, responseHeaders and responseBody will be filled in.
+ *
+ * @author Chris Chabot <chabotc@google.com>
+ * @author Chirag Shah <chirags@google.com>
+ *
+ */
+class Google_Http_Request
+{
+  const GZIP_UA = " (gzip)";
+
+  private $batchHeaders = array(
+    'Content-Type' => 'application/http',
+    'Content-Transfer-Encoding' => 'binary',
+    'MIME-Version' => '1.0',
+  );
+
+  protected $queryParams;
+  protected $requestMethod;
+  protected $requestHeaders;
+  protected $baseComponent = null;
+  protected $path;
+  protected $postBody;
+  protected $userAgent;
+  protected $canGzip = null;
+
+  protected $responseHttpCode;
+  protected $responseHeaders;
+  protected $responseBody;
+  
+  protected $expectedClass;
+  protected $expectedRaw = false;
+
+  public $accessKey;
+
+  public function __construct(
+      $url,
+      $method = 'GET',
+      $headers = array(),
+      $postBody = null
+  ) {
+    $this->setUrl($url);
+    $this->setRequestMethod($method);
+    $this->setRequestHeaders($headers);
+    $this->setPostBody($postBody);
+  }
+
+  /**
+   * Misc function that returns the base url component of the $url
+   * used by the OAuth signing class to calculate the base string
+   * @return string The base url component of the $url.
+   */
+  public function getBaseComponent()
+  {
+    return $this->baseComponent;
+  }
+  
+  /**
+   * Set the base URL that path and query parameters will be added to.
+   * @param $baseComponent string
+   */
+  public function setBaseComponent($baseComponent)
+  {
+    $this->baseComponent = $baseComponent;
+  }
+  
+  /**
+   * Enable support for gzipped responses with this request.
+   */
+  public function enableGzip()
+  {
+    $this->setRequestHeaders(array("Accept-Encoding" => "gzip"));
+    $this->canGzip = true;
+    $this->setUserAgent($this->userAgent);
+  }
+  
+  /**
+   * Disable support for gzip responses with this request.
+   */
+  public function disableGzip()
+  {
+    if (
+        isset($this->requestHeaders['accept-encoding']) &&
+        $this->requestHeaders['accept-encoding'] == "gzip"
+    ) {
+      unset($this->requestHeaders['accept-encoding']);
+    }
+    $this->canGzip = false;
+    $this->userAgent = str_replace(self::GZIP_UA, "", $this->userAgent);
+  }
+  
+  /**
+   * Can this request accept a gzip response?
+   * @return bool
+   */
+  public function canGzip()
+  {
+    return $this->canGzip;
+  }
+
+  /**
+   * Misc function that returns an array of the query parameters of the current
+   * url used by the OAuth signing class to calculate the signature
+   * @return array Query parameters in the query string.
+   */
+  public function getQueryParams()
+  {
+    return $this->queryParams;
+  }
+
+  /** 
+   * Set a new query parameter.
+   * @param $key - string to set, does not need to be URL encoded
+   * @param $value - string to set, does not need to be URL encoded
+   */
+  public function setQueryParam($key, $value)
+  {
+    $this->queryParams[$key] = $value;
+  }
+
+  /**
+   * @return string HTTP Response Code.
+   */
+  public function getResponseHttpCode()
+  {
+    return (int) $this->responseHttpCode;
+  }
+
+  /**
+   * @param int $responseHttpCode HTTP Response Code.
+   */
+  public function setResponseHttpCode($responseHttpCode)
+  {
+    $this->responseHttpCode = $responseHttpCode;
+  }
+
+  /**
+   * @return $responseHeaders (array) HTTP Response Headers.
+   */
+  public function getResponseHeaders()
+  {
+    return $this->responseHeaders;
+  }
+
+  /**
+   * @return string HTTP Response Body
+   */
+  public function getResponseBody()
+  {
+    return $this->responseBody;
+  }
+  
+  /**
+   * Set the class the response to this request should expect.
+   *
+   * @param $class string the class name
+   */
+  public function setExpectedClass($class)
+  {
+    $this->expectedClass = $class;
+  }
+  
+  /**
+   * Retrieve the expected class the response should expect.
+   * @return string class name
+   */
+  public function getExpectedClass()
+  {
+    return $this->expectedClass;
+  }
+
+  /**
+   * Enable expected raw response
+   */
+  public function enableExpectedRaw()
+  {
+    $this->expectedRaw = true;
+  }
+
+  /**
+   * Disable expected raw response
+   */
+  public function disableExpectedRaw()
+  {
+    $this->expectedRaw = false;
+  }
+
+  /**
+   * Expected raw response or not.
+   * @return boolean expected raw response
+   */
+  public function getExpectedRaw()
+  {
+    return $this->expectedRaw;
+  }
+
+  /**
+   * @param array $headers The HTTP response headers
+   * to be normalized.
+   */
+  public function setResponseHeaders($headers)
+  {
+    $headers = Google_Utils::normalize($headers);
+    if ($this->responseHeaders) {
+      $headers = array_merge($this->responseHeaders, $headers);
+    }
+
+    $this->responseHeaders = $headers;
+  }
+
+  /**
+   * @param string $key
+   * @return array|boolean Returns the requested HTTP header or
+   * false if unavailable.
+   */
+  public function getResponseHeader($key)
+  {
+    return isset($this->responseHeaders[$key])
+        ? $this->responseHeaders[$key]
+        : false;
+  }
+
+  /**
+   * @param string $responseBody The HTTP response body.
+   */
+  public function setResponseBody($responseBody)
+  {
+    $this->responseBody = $responseBody;
+  }
+
+  /**
+   * @return string $url The request URL.
+   */
+  public function getUrl()
+  {
+    return $this->baseComponent . $this->path .
+        (count($this->queryParams) ?
+            "?" . $this->buildQuery($this->queryParams) :
+            '');
+  }
+
+  /**
+   * @return string $method HTTP Request Method.
+   */
+  public function getRequestMethod()
+  {
+    return $this->requestMethod;
+  }
+
+  /**
+   * @return array $headers HTTP Request Headers.
+   */
+  public function getRequestHeaders()
+  {
+    return $this->requestHeaders;
+  }
+
+  /**
+   * @param string $key
+   * @return array|boolean Returns the requested HTTP header or
+   * false if unavailable.
+   */
+  public function getRequestHeader($key)
+  {
+    return isset($this->requestHeaders[$key])
+        ? $this->requestHeaders[$key]
+        : false;
+  }
+
+  /**
+   * @return string $postBody HTTP Request Body.
+   */
+  public function getPostBody()
+  {
+    return $this->postBody;
+  }
+
+  /**
+   * @param string $url the url to set
+   */
+  public function setUrl($url)
+  {
+    if (substr($url, 0, 4) != 'http') {
+      // Force the path become relative.
+      if (substr($url, 0, 1) !== '/') {
+        $url = '/' . $url;
+      }
+    }
+    $parts = parse_url($url);
+    if (isset($parts['host'])) {
+      $this->baseComponent = sprintf(
+          "%s%s%s",
+          isset($parts['scheme']) ? $parts['scheme'] . "://" : '',
+          isset($parts['host']) ? $parts['host'] : '',
+          isset($parts['port']) ? ":" . $parts['port'] : ''
+      );
+    }
+    $this->path = isset($parts['path']) ? $parts['path'] : '';
+    $this->queryParams = array();
+    if (isset($parts['query'])) {
+      $this->queryParams = $this->parseQuery($parts['query']);
+    }
+  }
+
+  /**
+   * @param string $method Set he HTTP Method and normalize
+   * it to upper-case, as required by HTTP.
+   *
+   */
+  public function setRequestMethod($method)
+  {
+    $this->requestMethod = strtoupper($method);
+  }
+
+  /**
+   * @param array $headers The HTTP request headers
+   * to be set and normalized.
+   */
+  public function setRequestHeaders($headers)
+  {
+    $headers = Google_Utils::normalize($headers);
+    if ($this->requestHeaders) {
+      $headers = array_merge($this->requestHeaders, $headers);
+    }
+    $this->requestHeaders = $headers;
+  }
+
+  /**
+   * @param string $postBody the postBody to set
+   */
+  public function setPostBody($postBody)
+  {
+    $this->postBody = $postBody;
+  }
+
+  /**
+   * Set the User-Agent Header.
+   * @param string $userAgent The User-Agent.
+   */
+  public function setUserAgent($userAgent)
+  {
+    $this->userAgent = $userAgent;
+    if ($this->canGzip) {
+      $this->userAgent = $userAgent . self::GZIP_UA;
+    }
+  }
+
+  /**
+   * @return string The User-Agent.
+   */
+  public function getUserAgent()
+  {
+    return $this->userAgent;
+  }
+
+  /**
+   * Returns a cache key depending on if this was an OAuth signed request
+   * in which case it will use the non-signed url and access key to make this
+   * cache key unique per authenticated user, else use the plain request url
+   * @return string The md5 hash of the request cache key.
+   */
+  public function getCacheKey()
+  {
+    $key = $this->getUrl();
+
+    if (isset($this->accessKey)) {
+      $key .= $this->accessKey;
+    }
+
+    if (isset($this->requestHeaders['authorization'])) {
+      $key .= $this->requestHeaders['authorization'];
+    }
+
+    return md5($key);
+  }
+
+  public function getParsedCacheControl()
+  {
+    $parsed = array();
+    $rawCacheControl = $this->getResponseHeader('cache-control');
+    if ($rawCacheControl) {
+      $rawCacheControl = str_replace(', ', '&', $rawCacheControl);
+      parse_str($rawCacheControl, $parsed);
+    }
+
+    return $parsed;
+  }
+
+  /**
+   * @param string $id
+   * @return string A string representation of the HTTP Request.
+   */
+  public function toBatchString($id)
+  {
+    $str = '';
+    $path = parse_url($this->getUrl(), PHP_URL_PATH) . "?" .
+        http_build_query($this->queryParams);
+    $str .= $this->getRequestMethod() . ' ' . $path . " HTTP/1.1\n";
+
+    foreach ($this->getRequestHeaders() as $key => $val) {
+      $str .= $key . ': ' . $val . "\n";
+    }
+
+    if ($this->getPostBody()) {
+      $str .= "\n";
+      $str .= $this->getPostBody();
+    }
+    
+    $headers = '';
+    foreach ($this->batchHeaders as $key => $val) {
+      $headers .= $key . ': ' . $val . "\n";
+    }
+
+    $headers .= "Content-ID: $id\n";
+    $str = $headers . "\n" . $str;
+
+    return $str;
+  }
+  
+  /**
+   * Our own version of parse_str that allows for multiple variables
+   * with the same name. 
+   * @param $string - the query string to parse
+   */
+  private function parseQuery($string)
+  {
+    $return = array();
+    $parts = explode("&", $string);
+    foreach ($parts as $part) {
+      list($key, $value) = explode('=', $part, 2);
+      $value = urldecode($value);
+      if (isset($return[$key])) {
+        if (!is_array($return[$key])) {
+          $return[$key] = array($return[$key]);
+        }
+        $return[$key][] = $value;
+      } else {
+        $return[$key] = $value;
+      }
+    }
+    return $return;
+  }
+  
+  /**
+   * A version of build query that allows for multiple
+   * duplicate keys. 
+   * @param $parts array of key value pairs
+   */
+  private function buildQuery($parts)
+  {
+    $return = array();
+    foreach ($parts as $key => $value) {
+      if (is_array($value)) {
+        foreach ($value as $v) {
+          $return[] = urlencode($key) . "=" . urlencode($v);
+        }
+      } else {
+        $return[] = urlencode($key) . "=" . urlencode($value);
+      }
+    }
+    return implode('&', $return);
+  }
+  
+  /** 
+   * If we're POSTing and have no body to send, we can send the query
+   * parameters in there, which avoids length issues with longer query
+   * params.
+   */
+  public function maybeMoveParametersToBody()
+  {
+    if ($this->getRequestMethod() == "POST" && empty($this->postBody)) {
+      $this->setRequestHeaders(
+          array(
+            "content-type" =>
+                "application/x-www-form-urlencoded; charset=UTF-8"
+          )
+      );
+      $this->setPostBody($this->buildQuery($this->queryParams));
+      $this->queryParams = array();
+    }
+  }
+}