620 lines
20 KiB
PHP
620 lines
20 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Service
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* @subpackage SlideShare
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: SlideShare.php 16211 2009-06-21 19:23:55Z thomas $
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*/
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/**
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* Zend_Http_Client
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*/
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require_once 'Zend/Http/Client.php';
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/**
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* Zend_Cache
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*/
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require_once 'Zend/Cache.php';
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/**
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* Zend_Service_SlideShare_SlideShow
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*/
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require_once 'Zend/Service/SlideShare/SlideShow.php';
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/**
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* The Zend_Service_SlideShare component is used to interface with the
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* slideshare.net web server to retrieve slide shows hosted on the web site for
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* display or other processing.
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*
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* @category Zend
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* @package Zend_Service
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* @subpackage SlideShare
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* @throws Zend_Service_SlideShare_Exception
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Service_SlideShare
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{
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/**
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* Web service result code mapping
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*/
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const SERVICE_ERROR_BAD_APIKEY = 1;
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const SERVICE_ERROR_BAD_AUTH = 2;
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const SERVICE_ERROR_MISSING_TITLE = 3;
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const SERVICE_ERROR_MISSING_FILE = 4;
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const SERVICE_ERROR_EMPTY_TITLE = 5;
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const SERVICE_ERROR_NOT_SOURCEOBJ = 6;
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const SERVICE_ERROR_INVALID_EXT = 7;
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const SERVICE_ERROR_FILE_TOO_BIG = 8;
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const SERVICE_ERROR_SHOW_NOT_FOUND = 9;
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const SERVICE_ERROR_USER_NOT_FOUND = 10;
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const SERVICE_ERROR_GROUP_NOT_FOUND = 11;
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const SERVICE_ERROR_MISSING_TAG = 12;
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const SERVICE_ERROR_DAILY_LIMIT = 99;
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const SERVICE_ERROR_ACCOUNT_BLOCKED = 100;
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/**
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* Slide share Web service communication URIs
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*/
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const SERVICE_UPLOAD_URI = 'http://www.slideshare.net/api/1/upload_slideshow';
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const SERVICE_GET_SHOW_URI = 'http://www.slideshare.net/api/1/get_slideshow';
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const SERVICE_GET_SHOW_BY_USER_URI = 'http://www.slideshare.net/api/1/get_slideshow_by_user';
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const SERVICE_GET_SHOW_BY_TAG_URI = 'http://www.slideshare.net/api/1/get_slideshow_by_tag';
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const SERVICE_GET_SHOW_BY_GROUP_URI = 'http://www.slideshare.net/api/1/get_slideshows_from_group';
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/**
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* The MIME type of Slideshow files
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*
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*/
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const POWERPOINT_MIME_TYPE = "application/vnd.ms-powerpoint";
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/**
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* The API key to use in requests
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*
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* @var string The API key
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*/
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protected $_apiKey;
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/**
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* The shared secret to use in requests
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*
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* @var string the Shared secret
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*/
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protected $_sharedSecret;
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/**
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* The username to use in requests
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*
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* @var string the username
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*/
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protected $_username;
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/**
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* The password to use in requests
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*
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* @var string the password
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*/
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protected $_password;
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/**
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* The HTTP Client object to use to perform requests
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*
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* @var Zend_Http_Client
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*/
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protected $_httpclient;
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/**
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* The Cache object to use to perform caching
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*
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* @var Zend_Cache_Core
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*/
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protected $_cacheobject;
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/**
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* Sets the Zend_Http_Client object to use in requests. If not provided a default will
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* be used.
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*
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* @param Zend_Http_Client $client The HTTP client instance to use
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* @return Zend_Service_SlideShare
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*/
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public function setHttpClient(Zend_Http_Client $client)
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{
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$this->_httpclient = $client;
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return $this;
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}
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/**
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* Returns the instance of the Zend_Http_Client which will be used. Creates an instance
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* of Zend_Http_Client if no previous client was set.
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*
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* @return Zend_Http_Client The HTTP client which will be used
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*/
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public function getHttpClient()
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{
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if(!($this->_httpclient instanceof Zend_Http_Client)) {
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$client = new Zend_Http_Client();
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$client->setConfig(array('maxredirects' => 2,
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'timeout' => 5));
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$this->setHttpClient($client);
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}
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$this->_httpclient->resetParameters();
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return $this->_httpclient;
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}
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/**
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* Sets the Zend_Cache object to use to cache the results of API queries
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*
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* @param Zend_Cache_Core $cacheobject The Zend_Cache object used
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* @return Zend_Service_SlideShare
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*/
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public function setCacheObject(Zend_Cache_Core $cacheobject)
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{
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$this->_cacheobject = $cacheobject;
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return $this;
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}
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/**
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* Gets the Zend_Cache object which will be used to cache API queries. If no cache object
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* was previously set the the default will be used (Filesystem caching in /tmp with a life
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* time of 43200 seconds)
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*
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* @return Zend_Cache_Core The object used in caching
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*/
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public function getCacheObject()
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{
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if(!($this->_cacheobject instanceof Zend_Cache_Core)) {
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$cache = Zend_Cache::factory('Core', 'File', array('lifetime' => 43200,
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'automatic_serialization' => true),
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array('cache_dir' => '/tmp'));
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$this->setCacheObject($cache);
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}
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return $this->_cacheobject;
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}
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/**
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* Returns the user name used for API calls
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*
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* @return string The username
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*/
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public function getUserName()
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{
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return $this->_username;
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}
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/**
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* Sets the user name to use for API calls
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*
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* @param string $un The username to use
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* @return Zend_Service_SlideShare
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*/
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public function setUserName($un)
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{
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$this->_username = $un;
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return $this;
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}
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/**
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* Gets the password to use in API calls
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*
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* @return string the password to use in API calls
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*/
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public function getPassword()
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{
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return $this->_password;
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}
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/**
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* Sets the password to use in API calls
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*
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* @param string $pw The password to use
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* @return Zend_Service_SlideShare
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*/
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public function setPassword($pw)
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{
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$this->_password = (string)$pw;
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return $this;
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}
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/**
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* Gets the API key to be used in making API calls
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*
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* @return string the API Key
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*/
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public function getApiKey()
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{
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return $this->_apiKey;
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}
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/**
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* Sets the API key to be used in making API calls
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*
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* @param string $key The API key to use
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* @return Zend_Service_SlideShare
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*/
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public function setApiKey($key)
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{
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$this->_apiKey = (string)$key;
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return $this;
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}
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/**
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* Gets the shared secret used in making API calls
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*
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* @return string the Shared secret
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*/
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public function getSharedSecret()
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{
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return $this->_sharedSecret;
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}
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/**
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* Sets the shared secret used in making API calls
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*
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* @param string $secret the shared secret
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* @return Zend_Service_SlideShare
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*/
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public function setSharedSecret($secret)
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{
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$this->_sharedSecret = (string)$secret;
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return $this;
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}
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/**
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* The Constructor
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*
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* @param string $apikey The API key
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* @param string $sharedSecret The shared secret
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* @param string $username The username
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* @param string $password The password
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*/
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public function __construct($apikey, $sharedSecret, $username = null, $password = null)
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{
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$this->setApiKey($apikey)
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->setSharedSecret($sharedSecret)
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->setUserName($username)
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->setPassword($password);
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$this->_httpclient = new Zend_Http_Client();
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}
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/**
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* Uploads the specified Slide show the the server
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*
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* @param Zend_Service_SlideShare_SlideShow $ss The slide show object representing the slide show to upload
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* @param boolean $make_src_public Determines if the the slide show's source file is public or not upon upload
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* @return Zend_Service_SlideShare_SlideShow The passed Slide show object, with the new assigned ID provided
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*/
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public function uploadSlideShow(Zend_Service_SlideShare_SlideShow $ss, $make_src_public = true)
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{
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$timestamp = time();
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$params = array('api_key' => $this->getApiKey(),
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'ts' => $timestamp,
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'hash' => sha1($this->getSharedSecret().$timestamp),
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'username' => $this->getUserName(),
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'password' => $this->getPassword(),
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'slideshow_title' => $ss->getTitle());
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$description = $ss->getDescription();
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$tags = $ss->getTags();
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$filename = $ss->getFilename();
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if(!file_exists($filename) || !is_readable($filename)) {
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception("Specified Slideshow for upload not found or unreadable");
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}
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if(!empty($description)) {
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$params['slideshow_description'] = $description;
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} else {
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$params['slideshow_description'] = "";
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}
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if(!empty($tags)) {
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$tmp = array();
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foreach($tags as $tag) {
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$tmp[] = "\"$tag\"";
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}
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$params['slideshow_tags'] = implode(' ', $tmp);
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} else {
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$params['slideshow_tags'] = "";
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}
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$client = $this->getHttpClient();
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$client->setUri(self::SERVICE_UPLOAD_URI);
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$client->setParameterPost($params);
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$client->setFileUpload($filename, "slideshow_srcfile");
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require_once 'Zend/Http/Client/Exception.php';
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try {
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$response = $client->request('POST');
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} catch(Zend_Http_Client_Exception $e) {
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception("Service Request Failed: {$e->getMessage()}");
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}
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$sxe = simplexml_load_string($response->getBody());
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if($sxe->getName() == "SlideShareServiceError") {
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$message = (string)$sxe->Message[0];
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list($code, $error_str) = explode(':', $message);
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception(trim($error_str), $code);
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}
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if(!$sxe->getName() == "SlideShowUploaded") {
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception("Unknown XML Respons Received");
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}
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$ss->setId((int)(string)$sxe->SlideShowID);
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return $ss;
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}
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/**
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* Retrieves a slide show's information based on slide show ID
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*
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* @param int $ss_id The slide show ID
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* @return Zend_Service_SlideShare_SlideShow the Slideshow object
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*/
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public function getSlideShow($ss_id)
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{
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$timestamp = time();
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$params = array('api_key' => $this->getApiKey(),
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'ts' => $timestamp,
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'hash' => sha1($this->getSharedSecret().$timestamp),
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'slideshow_id' => $ss_id);
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$cache = $this->getCacheObject();
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$cache_key = md5("__zendslideshare_cache_$ss_id");
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if(!$retval = $cache->load($cache_key)) {
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$client = $this->getHttpClient();
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$client->setUri(self::SERVICE_GET_SHOW_URI);
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$client->setParameterPost($params);
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require_once 'Zend/Http/Client/Exception.php';
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try {
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$response = $client->request('POST');
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} catch(Zend_Http_Client_Exception $e) {
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception("Service Request Failed: {$e->getMessage()}");
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}
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$sxe = simplexml_load_string($response->getBody());
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if($sxe->getName() == "SlideShareServiceError") {
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$message = (string)$sxe->Message[0];
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list($code, $error_str) = explode(':', $message);
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception(trim($error_str), $code);
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}
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if(!$sxe->getName() == 'Slideshows') {
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require_once 'Zend/Service/SlideShare/Exception.php';
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throw new Zend_Service_SlideShare_Exception('Unknown XML Repsonse Received');
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}
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$retval = $this->_slideShowNodeToObject(clone $sxe->Slideshow[0]);
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$cache->save($retval, $cache_key);
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}
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return $retval;
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}
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/**
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* Retrieves an array of slide shows for a given username
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*
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* @param string $username The username to retrieve slide shows from
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* @param int $offset The offset of the list to start retrieving from
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* @param int $limit The maximum number of slide shows to retrieve
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* @return array An array of Zend_Service_SlideShare_SlideShow objects
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*/
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public function getSlideShowsByUsername($username, $offset = null, $limit = null)
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{
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return $this->_getSlideShowsByType('username_for', $username, $offset, $limit);
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}
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/**
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* Retrieves an array of slide shows based on tag
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*
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* @param string $tag The tag to retrieve slide shows with
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* @param int $offset The offset of the list to start retrieving from
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* @param int $limit The maximum number of slide shows to retrieve
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* @return array An array of Zend_Service_SlideShare_SlideShow objects
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*/
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||
|
public function getSlideShowsByTag($tag, $offset = null, $limit = null)
|
||
|
{
|
||
|
|
||
|
if(is_array($tag)) {
|
||
|
$tmp = array();
|
||
|
foreach($tag as $t) {
|
||
|
$tmp[] = "\"$t\"";
|
||
|
}
|
||
|
|
||
|
$tag = implode(" ", $tmp);
|
||
|
}
|
||
|
|
||
|
return $this->_getSlideShowsByType('tag', $tag, $offset, $limit);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Retrieves an array of slide shows based on group name
|
||
|
*
|
||
|
* @param string $group The group name to retrieve slide shows for
|
||
|
* @param int $offset The offset of the list to start retrieving from
|
||
|
* @param int $limit The maximum number of slide shows to retrieve
|
||
|
* @return array An array of Zend_Service_SlideShare_SlideShow objects
|
||
|
*/
|
||
|
public function getSlideShowsByGroup($group, $offset = null, $limit = null)
|
||
|
{
|
||
|
return $this->_getSlideShowsByType('group_name', $group, $offset, $limit);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Retrieves Zend_Service_SlideShare_SlideShow object arrays based on the type of
|
||
|
* list desired
|
||
|
*
|
||
|
* @param string $key The type of slide show object to retrieve
|
||
|
* @param string $value The specific search query for the slide show type to look up
|
||
|
* @param int $offset The offset of the list to start retrieving from
|
||
|
* @param int $limit The maximum number of slide shows to retrieve
|
||
|
* @return array An array of Zend_Service_SlideShare_SlideShow objects
|
||
|
*/
|
||
|
protected function _getSlideShowsByType($key, $value, $offset = null, $limit = null)
|
||
|
{
|
||
|
|
||
|
$key = strtolower($key);
|
||
|
|
||
|
switch($key) {
|
||
|
case 'username_for':
|
||
|
$responseTag = 'User';
|
||
|
$queryUri = self::SERVICE_GET_SHOW_BY_USER_URI;
|
||
|
break;
|
||
|
case 'group_name':
|
||
|
$responseTag = 'Group';
|
||
|
$queryUri = self::SERVICE_GET_SHOW_BY_GROUP_URI;
|
||
|
break;
|
||
|
case 'tag':
|
||
|
$responseTag = 'Tag';
|
||
|
$queryUri = self::SERVICE_GET_SHOW_BY_TAG_URI;
|
||
|
break;
|
||
|
default:
|
||
|
require_once 'Zend/Service/SlideShare/Exception.php';
|
||
|
throw new Zend_Service_SlideShare_Exception("Invalid SlideShare Query");
|
||
|
}
|
||
|
|
||
|
$timestamp = time();
|
||
|
|
||
|
$params = array('api_key' => $this->getApiKey(),
|
||
|
'ts' => $timestamp,
|
||
|
'hash' => sha1($this->getSharedSecret().$timestamp),
|
||
|
$key => $value);
|
||
|
|
||
|
if($offset !== null) {
|
||
|
$params['offset'] = (int)$offset;
|
||
|
}
|
||
|
|
||
|
if($limit !== null) {
|
||
|
$params['limit'] = (int)$limit;
|
||
|
}
|
||
|
|
||
|
$cache = $this->getCacheObject();
|
||
|
|
||
|
$cache_key = md5($key.$value.$offset.$limit);
|
||
|
|
||
|
if(!$retval = $cache->load($cache_key)) {
|
||
|
|
||
|
$client = $this->getHttpClient();
|
||
|
|
||
|
$client->setUri($queryUri);
|
||
|
$client->setParameterPost($params);
|
||
|
|
||
|
require_once 'Zend/Http/Client/Exception.php';
|
||
|
try {
|
||
|
$response = $client->request('POST');
|
||
|
} catch(Zend_Http_Client_Exception $e) {
|
||
|
require_once 'Zend/Service/SlideShare/Exception.php';
|
||
|
throw new Zend_Service_SlideShare_Exception("Service Request Failed: {$e->getMessage()}");
|
||
|
}
|
||
|
|
||
|
$sxe = simplexml_load_string($response->getBody());
|
||
|
|
||
|
if($sxe->getName() == "SlideShareServiceError") {
|
||
|
$message = (string)$sxe->Message[0];
|
||
|
list($code, $error_str) = explode(':', $message);
|
||
|
require_once 'Zend/Service/SlideShare/Exception.php';
|
||
|
throw new Zend_Service_SlideShare_Exception(trim($error_str), $code);
|
||
|
}
|
||
|
|
||
|
if(!$sxe->getName() == $responseTag) {
|
||
|
require_once 'Zend/Service/SlideShare/Exception.php';
|
||
|
throw new Zend_Service_SlideShare_Exception('Unknown or Invalid XML Repsonse Received');
|
||
|
}
|
||
|
|
||
|
$retval = array();
|
||
|
|
||
|
foreach($sxe->children() as $node) {
|
||
|
if($node->getName() == 'Slideshow') {
|
||
|
$retval[] = $this->_slideShowNodeToObject($node);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$cache->save($retval, $cache_key);
|
||
|
}
|
||
|
|
||
|
return $retval;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Converts a SimpleXMLElement object representing a response from the service
|
||
|
* into a Zend_Service_SlideShare_SlideShow object
|
||
|
*
|
||
|
* @param SimpleXMLElement $node The input XML from the slideshare.net service
|
||
|
* @return Zend_Service_SlideShare_SlideShow The resulting object
|
||
|
*/
|
||
|
protected function _slideShowNodeToObject(SimpleXMLElement $node)
|
||
|
{
|
||
|
|
||
|
if($node->getName() == 'Slideshow') {
|
||
|
|
||
|
$ss = new Zend_Service_SlideShare_SlideShow();
|
||
|
|
||
|
$ss->setId((string)$node->ID);
|
||
|
$ss->setDescription((string)$node->Description);
|
||
|
$ss->setEmbedCode((string)$node->EmbedCode);
|
||
|
$ss->setNumViews((string)$node->Views);
|
||
|
$ss->setPermaLink((string)$node->Permalink);
|
||
|
$ss->setStatus((string)$node->Status);
|
||
|
$ss->setStatusDescription((string)$node->StatusDescription);
|
||
|
|
||
|
foreach(explode(",", (string)$node->Tags) as $tag) {
|
||
|
|
||
|
if(!in_array($tag, $ss->getTags())) {
|
||
|
$ss->addTag($tag);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$ss->setThumbnailUrl((string)$node->Thumbnail);
|
||
|
$ss->setTitle((string)$node->Title);
|
||
|
$ss->setLocation((string)$node->Location);
|
||
|
$ss->setTranscript((string)$node->Transcript);
|
||
|
|
||
|
return $ss;
|
||
|
|
||
|
}
|
||
|
|
||
|
require_once 'Zend/Service/SlideShare/Exception.php';
|
||
|
throw new Zend_Service_SlideShare_Exception("Was not provided the expected XML Node for processing");
|
||
|
}
|
||
|
}
|