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 <?php
 
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Gdata
  * @subpackage Photos
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Gdata
  */
 // require_once 'Zend/Gdata.php';
 
 /**
  * @see Zend_Gdata_Photos_UserFeed
  */
 // require_once 'Zend/Gdata/Photos/UserFeed.php';
 
 /**
  * @see Zend_Gdata_Photos_AlbumFeed
  */
 // require_once 'Zend/Gdata/Photos/AlbumFeed.php';
 
 /**
  * @see Zend_Gdata_Photos_PhotoFeed
  */
 // require_once 'Zend/Gdata/Photos/PhotoFeed.php';
 
 /**
  * Service class for interacting with the Google Photos Data API.
  *
  * Like other service classes in this module, this class provides access via
  * an HTTP client to Google servers for working with entries and feeds.
  *
  * @link http://code.google.com/apis/picasaweb/gdata.html
  *
  * @category   Zend
  * @package    Zend_Gdata
  * @subpackage Photos
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Gdata_Photos extends Zend_Gdata
 {
 
     const PICASA_BASE_URI = 'https://picasaweb.google.com/data';
     const PICASA_BASE_FEED_URI = 'https://picasaweb.google.com/data/feed';
     const AUTH_SERVICE_NAME = 'lh2';
 
     /**
      * Default projection when interacting with the Picasa server.
      */
     const DEFAULT_PROJECTION = 'api';
 
     /**
      * The default visibility to filter events by.
      */
     const DEFAULT_VISIBILITY = 'all';
 
     /**
      * The default user to retrieve feeds for.
      */
     const DEFAULT_USER = 'default';
 
     /**
      * Path to the user feed on the Picasa server.
      */
     const USER_PATH = 'user';
 
     /**
      * Path to album feeds on the Picasa server.
      */
     const ALBUM_PATH = 'albumid';
 
     /**
      * Path to photo feeds on the Picasa server.
      */
     const PHOTO_PATH = 'photoid';
 
     /**
      * The path to the community search feed on the Picasa server.
      */
     const COMMUNITY_SEARCH_PATH = 'all';
 
     /**
      * The path to use for finding links to feeds within entries
      */
     const FEED_LINK_PATH = 'http://schemas.google.com/g/2005#feed';
 
     /**
      * The path to use for the determining type of an entry
      */
     const KIND_PATH = 'http://schemas.google.com/g/2005#kind';
 
     /**
      * Namespaces used for Zend_Gdata_Photos
      *
      * @var array
      */
     public static $namespaces = array(
         array('gphoto', 'http://schemas.google.com/photos/2007', 1, 0),
         array('photo', 'http://www.pheed.com/pheed/', 1, 0),
         array('exif', 'http://schemas.google.com/photos/exif/2007', 1, 0),
         array('georss', 'http://www.georss.org/georss', 1, 0),
         array('gml', 'http://www.opengis.net/gml', 1, 0),
         array('media', 'http://search.yahoo.com/mrss/', 1, 0)
     );
 
     /**
      * Create Zend_Gdata_Photos object
      *
      * @param Zend_Http_Client $client (optional) The HTTP client to use when
      *          when communicating with the servers.
      * @param string $applicationId The identity of the app in the form of Company-AppName-Version
      */
     public function __construct($client = null, $applicationId = 'MyCompany-MyApp-1.0')
     {
         $this->registerPackage('Zend_Gdata_Photos');
         $this->registerPackage('Zend_Gdata_Photos_Extension');
         parent::__construct($client, $applicationId);
         $this->_httpClient->setParameterPost('service', self::AUTH_SERVICE_NAME);
     }
 
     /**
      * Retrieve a UserFeed containing AlbumEntries, PhotoEntries and
      * TagEntries associated with a given user.
      *
      * @param string $userName The userName of interest
      * @param mixed $location (optional) The location for the feed, as a URL
      *          or Query. If not provided, a default URL will be used instead.
      * @return Zend_Gdata_Photos_UserFeed
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getUserFeed($userName = null, $location = null)
     {
         if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('feed');
             if ($userName !== null) {
                 $location->setUser($userName);
             }
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             if ($userName !== null) {
                 $location->setUser($userName);
             }
             $uri = $location->getQueryUrl();
         } else if ($location !== null) {
             $uri = $location;
         } else if ($userName !== null) {
             $uri = self::PICASA_BASE_FEED_URI . '/' .
                 self::DEFAULT_PROJECTION . '/' . self::USER_PATH . '/' .
                 $userName;
         } else {
             $uri = self::PICASA_BASE_FEED_URI . '/' .
                 self::DEFAULT_PROJECTION . '/' . self::USER_PATH . '/' .
                 self::DEFAULT_USER;
         }
 
         return parent::getFeed($uri, 'Zend_Gdata_Photos_UserFeed');
     }
 
     /**
      * Retreive AlbumFeed object containing multiple PhotoEntry or TagEntry
      * objects.
      *
      * @param mixed $location (optional) The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_AlbumFeed
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getAlbumFeed($location = null)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('feed');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getFeed($uri, 'Zend_Gdata_Photos_AlbumFeed');
     }
 
     /**
      * Retreive PhotoFeed object containing comments and tags associated
      * with a given photo.
      *
      * @param mixed $location (optional) The location for the feed, as a URL
      *          or Query. If not specified, the community search feed will
      *          be returned instead.
      * @return Zend_Gdata_Photos_PhotoFeed
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getPhotoFeed($location = null)
     {
         if ($location === null) {
             $uri = self::PICASA_BASE_FEED_URI . '/' .
                 self::DEFAULT_PROJECTION . '/' .
                 self::COMMUNITY_SEARCH_PATH;
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('feed');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getFeed($uri, 'Zend_Gdata_Photos_PhotoFeed');
     }
 
     /**
      * Retreive a single UserEntry object.
      *
      * @param mixed $location The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_UserEntry
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getUserEntry($location)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('entry');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getEntry($uri, 'Zend_Gdata_Photos_UserEntry');
     }
 
     /**
      * Retreive a single AlbumEntry object.
      *
      * @param mixed $location The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_AlbumEntry
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getAlbumEntry($location)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('entry');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getEntry($uri, 'Zend_Gdata_Photos_AlbumEntry');
     }
 
     /**
      * Retreive a single PhotoEntry object.
      *
      * @param mixed $location The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_PhotoEntry
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getPhotoEntry($location)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('entry');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getEntry($uri, 'Zend_Gdata_Photos_PhotoEntry');
     }
 
     /**
      * Retreive a single TagEntry object.
      *
      * @param mixed $location The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_TagEntry
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getTagEntry($location)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('entry');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getEntry($uri, 'Zend_Gdata_Photos_TagEntry');
     }
 
     /**
      * Retreive a single CommentEntry object.
      *
      * @param mixed $location The location for the feed, as a URL or Query.
      * @return Zend_Gdata_Photos_CommentEntry
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function getCommentEntry($location)
     {
         if ($location === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'Location must not be null');
         } else if ($location instanceof Zend_Gdata_Photos_UserQuery) {
             $location->setType('entry');
             $uri = $location->getQueryUrl();
         } else if ($location instanceof Zend_Gdata_Query) {
             $uri = $location->getQueryUrl();
         } else {
             $uri = $location;
         }
         return parent::getEntry($uri, 'Zend_Gdata_Photos_CommentEntry');
     }
 
     /**
      * Create a new album from a AlbumEntry.
      *
      * @param Zend_Gdata_Photos_AlbumEntry $album The album entry to
      *          insert.
      * @param string $url (optional) The URI that the album should be
      *          uploaded to. If null, the default album creation URI for
      *          this domain will be used.
      * @return Zend_Gdata_Photos_AlbumEntry The inserted album entry as
      *          returned by the server.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function insertAlbumEntry($album, $uri = null)
     {
         if ($uri === null) {
             $uri = self::PICASA_BASE_FEED_URI . '/' .
                 self::DEFAULT_PROJECTION . '/' . self::USER_PATH . '/' .
                 self::DEFAULT_USER;
         }
         $newEntry = $this->insertEntry($album, $uri, 'Zend_Gdata_Photos_AlbumEntry');
         return $newEntry;
     }
 
     /**
      * Create a new photo from a PhotoEntry.
      *
      * @param Zend_Gdata_Photos_PhotoEntry $photo The photo to insert.
      * @param string $url The URI that the photo should be uploaded
      *          to. Alternatively, an AlbumEntry can be provided and the
      *          photo will be added to that album.
      * @return Zend_Gdata_Photos_PhotoEntry The inserted photo entry
      *          as returned by the server.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function insertPhotoEntry($photo, $uri = null)
     {
         if ($uri instanceof Zend_Gdata_Photos_AlbumEntry) {
             $uri = $uri->getLink(self::FEED_LINK_PATH)->href;
         }
         if ($uri === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'URI must not be null');
         }
         $newEntry = $this->insertEntry($photo, $uri, 'Zend_Gdata_Photos_PhotoEntry');
         return $newEntry;
     }
 
     /**
      * Create a new tag from a TagEntry.
      *
      * @param Zend_Gdata_Photos_TagEntry $tag The tag entry to insert.
      * @param string $url The URI where the tag should be
      *          uploaded to. Alternatively, a PhotoEntry can be provided and
      *          the tag will be added to that photo.
      * @return Zend_Gdata_Photos_TagEntry The inserted tag entry as returned
      *          by the server.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function insertTagEntry($tag, $uri = null)
     {
         if ($uri instanceof Zend_Gdata_Photos_PhotoEntry) {
             $uri = $uri->getLink(self::FEED_LINK_PATH)->href;
         }
         if ($uri === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'URI must not be null');
         }
         $newEntry = $this->insertEntry($tag, $uri, 'Zend_Gdata_Photos_TagEntry');
         return $newEntry;
     }
 
     /**
      * Create a new comment from a CommentEntry.
      *
      * @param Zend_Gdata_Photos_CommentEntry $comment The comment entry to
      *          insert.
      * @param string $url The URI where the comment should be uploaded to.
      *          Alternatively, a PhotoEntry can be provided and
      *          the comment will be added to that photo.
      * @return Zend_Gdata_Photos_CommentEntry The inserted comment entry
      *          as returned by the server.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function insertCommentEntry($comment, $uri = null)
     {
         if ($uri instanceof Zend_Gdata_Photos_PhotoEntry) {
             $uri = $uri->getLink(self::FEED_LINK_PATH)->href;
         }
         if ($uri === null) {
             // require_once 'Zend/Gdata/App/InvalidArgumentException.php';
             throw new Zend_Gdata_App_InvalidArgumentException(
                     'URI must not be null');
         }
         $newEntry = $this->insertEntry($comment, $uri, 'Zend_Gdata_Photos_CommentEntry');
         return $newEntry;
     }
 
     /**
      * Delete an AlbumEntry.
      *
      * @param Zend_Gdata_Photos_AlbumEntry $album The album entry to
      *          delete.
      * @param boolean $catch Whether to catch an exception when
      *            modified and re-delete or throw
      * @return void.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function deleteAlbumEntry($album, $catch)
     {
         if ($catch) {
             try {
                 $this->delete($album);
             } catch (Zend_Gdata_App_HttpException $e) {
                 if ($e->getResponse()->getStatus() === 409) {
                     $entry = new Zend_Gdata_Photos_AlbumEntry($e->getResponse()->getBody());
                     $this->delete($entry->getLink('edit')->href);
                 } else {
                     throw $e;
                 }
             }
         } else {
             $this->delete($album);
         }
     }
 
     /**
      * Delete a PhotoEntry.
      *
      * @param Zend_Gdata_Photos_PhotoEntry $photo The photo entry to
      *          delete.
      * @param boolean $catch Whether to catch an exception when
      *            modified and re-delete or throw
      * @return void.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function deletePhotoEntry($photo, $catch)
     {
         if ($catch) {
             try {
                 $this->delete($photo);
             } catch (Zend_Gdata_App_HttpException $e) {
                 if ($e->getResponse()->getStatus() === 409) {
                     $entry = new Zend_Gdata_Photos_PhotoEntry($e->getResponse()->getBody());
                     $this->delete($entry->getLink('edit')->href);
                 } else {
                     throw $e;
                 }
             }
         } else {
             $this->delete($photo);
         }
     }
 
     /**
      * Delete a CommentEntry.
      *
      * @param Zend_Gdata_Photos_CommentEntry $comment The comment entry to
      *          delete.
      * @param boolean $catch Whether to catch an exception when
      *            modified and re-delete or throw
      * @return void.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function deleteCommentEntry($comment, $catch)
     {
         if ($catch) {
             try {
                 $this->delete($comment);
             } catch (Zend_Gdata_App_HttpException $e) {
                 if ($e->getResponse()->getStatus() === 409) {
                     $entry = new Zend_Gdata_Photos_CommentEntry($e->getResponse()->getBody());
                     $this->delete($entry->getLink('edit')->href);
                 } else {
                     throw $e;
                 }
             }
         } else {
             $this->delete($comment);
         }
     }
 
     /**
      * Delete a TagEntry.
      *
      * @param Zend_Gdata_Photos_TagEntry $tag The tag entry to
      *          delete.
      * @param boolean $catch Whether to catch an exception when
      *            modified and re-delete or throw
      * @return void.
      * @throws Zend_Gdata_App_Exception
      * @throws Zend_Gdata_App_HttpException
      */
     public function deleteTagEntry($tag, $catch)
     {
         if ($catch) {
             try {
                 $this->delete($tag);
             } catch (Zend_Gdata_App_HttpException $e) {
                 if ($e->getResponse()->getStatus() === 409) {
                     $entry = new Zend_Gdata_Photos_TagEntry($e->getResponse()->getBody());
                     $this->delete($entry->getLink('edit')->href);
                 } else {
                     throw $e;
                 }
             }
         } else {
             $this->delete($tag);
         }
     }
 
 }