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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_Service
 * @subpackage Yahoo
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Yahoo.php 13006 2008-12-03 21:17:01Z matthew $
 */

/**
 * @category   Zend
 * @package    Zend_Service
 * @subpackage Yahoo
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Service_Yahoo
{
    /**
     * Yahoo Developer Application ID
     *
     * @var string
     */
    public $appId;

/**
     * Reference to the REST client
     *
     * @var Zend_Rest_Client
     */
    protected $_rest;

/**
     * Sets the application ID and instantiates the REST client
     *
     * @param  string $appId specified the developer's appid
     * @return void
     */
    public function __construct($appId)
    {
        $this->appId = (string) $appId;
        /**
         * @see Zend_Rest_Client
         */
        require_once 'Zend/Rest/Client.php';
        $this->_rest = new Zend_Rest_Client('http://search.yahooapis.com');
    }

/**
     * Retrieve Inlink Data from siteexplorer.yahoo.com.  A basic query
     * consists simply of a URL.  Additional options that can be
     * specified consist of:
     * 'results'      => int  How many results to return, max is 100
     * 'start'        => int  The start offset for search results
     * 'entire_site'  => bool  Data for the whole site or a single page
     * 'omit_inlinks' => (none|domain|subdomain)  Filter inlinks from these sources
     *
     * @param  string $query    the query being run
     * @param  array  $options  any optional parameters
     * @return Zend_Service_Yahoo_ResultSet  The return set
     * @throws Zend_Service_Exception
     */
    public function inlinkDataSearch($query, array $options = array())
    {
        static $defaultOptions = array('results'     => '50',
                                       'start'    => 1);

$options = $this->_prepareOptions($query, $options, $defaultOptions);
        $this->_validateInlinkDataSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/SiteExplorerService/V1/inlinkData', $options);

if ($response->isError()) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception('An error occurred sending request. Status code: ' .
                                             $response->getStatus());
        }

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_Yahoo_InlinkDataResultSet
         */
        require_once 'Zend/Service/Yahoo/InlinkDataResultSet.php';
        return new Zend_Service_Yahoo_InlinkDataResultSet($dom);
    }

/**
     * Perform a search of images.  The most basic query consists simply
     * of a plain text search, but you can also specify the type of
     * image, the format, color, etc.
     *
     * The specific options are:
     * 'type'       => (all|any|phrase)  How to parse the query terms
     * 'results'    => int  How many results to return, max is 50
     * 'start'      => int  The start offset for search results
     * 'format'     => (any|bmp|gif|jpeg|png)  The type of images to search for
     * 'coloration' => (any|color|bw)  The coloration of images to search for
     * 'adult_ok'   => bool  Flag to allow 'adult' images.
     *
     * @param  string $query   the query to be run
     * @param  array  $options an optional array of query options
     * @return Zend_Service_Yahoo_ImageResultSet the search results
     * @throws Zend_Service_Exception
     */
    public function imageSearch($query, array $options = array())
    {
        static $defaultOptions = array('type'       => 'all',
                                       'results'    => 10,
                                       'start'      => 1,
                                       'format'     => 'any',
                                       'coloration' => 'any');

$options = $this->_prepareOptions($query, $options, $defaultOptions);

$this->_validateImageSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/ImageSearchService/V1/imageSearch', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_YahooImageResultSet
         */
        require_once 'Zend/Service/Yahoo/ImageResultSet.php';
        return new Zend_Service_Yahoo_ImageResultSet($dom);
    }

/**
     * Perform a search on local.yahoo.com.  The basic search
     * consists of a query and some fragment of location information;
     * for example zipcode, latitude/longitude, or street address.
     *
     * Query options include:
     * 'results'    => int  How many results to return, max is 50
     * 'start'      => int  The start offset for search results
     * 'sort'       => (relevance|title|distance|rating) How to order your results
     *
     * 'radius'     => float  The radius (in miles) in which to search
     *
     * 'longitude'  => float  The longitude of the location to search around
     * 'latitude'   => float  The latitude of the location to search around
     *
     * 'zip'        => string The zipcode to search around
     *
     * 'street'     => string  The street address to search around
     * 'city'       => string  The city for address search
     * 'state'      => string  The state for address search
     * 'location'   => string  An adhoc location string to search around
     *
     * @param  string $query    The query string you want to run
     * @param  array  $options  The search options, including location
     * @return Zend_Service_Yahoo_LocalResultSet The results
     * @throws Zend_Service_Exception
     */
    public function localSearch($query, array $options = array())
    {
        static $defaultOptions = array('results' => 10,
                                       'start'   => 1,
                                       'sort'    => 'distance',
                                       'radius'  => 5);

$options = $this->_prepareOptions($query, $options, $defaultOptions);

$this->_validateLocalSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://local.yahooapis.com');
        $response = $this->_rest->restGet('/LocalSearchService/V1/localSearch', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_Yahoo_LocalResultSet
         */
        require_once 'Zend/Service/Yahoo/LocalResultSet.php';
        return new Zend_Service_Yahoo_LocalResultSet($dom);
    }

/**
     * Execute a search on news.yahoo.com. This method minimally takes a
     * text query to search on.
     *
     * Query options coonsist of:
     *
     * 'results'    => int  How many results to return, max is 50
     * 'start'      => int  The start offset for search results
     * 'sort'       => (rank|date)  How to order your results
     * 'language'   => lang  The target document language to match
     * 'type'       => (all|any|phrase)  How the query should be parsed
     * 'site'       => string  A site to which your search should be restricted
     *
     * @param  string $query    The query to run
     * @param  array  $options  The array of optional parameters
     * @return Zend_Service_Yahoo_NewsResultSet  The query return set
     * @throws Zend_Service_Exception
     */
    public function newsSearch($query, array $options = array())
    {
        static $defaultOptions = array('type'     => 'all',
                                       'start'    => 1,
                                       'sort'     => 'rank');

$options = $this->_prepareOptions($query, $options, $defaultOptions);

$this->_validateNewsSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/NewsSearchService/V1/newsSearch', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_Yahoo_NewsResultSet
         */
        require_once 'Zend/Service/Yahoo/NewsResultSet.php';
        return new Zend_Service_Yahoo_NewsResultSet($dom);
    }

/**
     * Retrieve Page Data from siteexplorer.yahoo.com.  A basic query
     * consists simply of a URL.  Additional options that can be
     * specified consist of:
     * 'results'      => int  How many results to return, max is 100
     * 'start'        => int  The start offset for search results
     * 'domain_only'  => bool  Data for just the given domain or all sub-domains also
     *
     * @param  string $query    the query being run
     * @param  array  $options  any optional parameters
     * @return Zend_Service_Yahoo_ResultSet  The return set
     * @throws Zend_Service_Exception
     */
    public function pageDataSearch($query, array $options = array())
    {
        static $defaultOptions = array('results'     => '50',
                                       'start'    => 1);

$options = $this->_prepareOptions($query, $options, $defaultOptions);
        $this->_validatePageDataSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/SiteExplorerService/V1/pageData', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_Yahoo_PageDataResultSet
         */
        require_once 'Zend/Service/Yahoo/PageDataResultSet.php';
        return new Zend_Service_Yahoo_PageDataResultSet($dom);
    }

/**
     * Perform a search of videos.  The most basic query consists simply
     * of a plain text search, but you can also specify the format of
     * video.
     *
     * The specific options are:
     * 'type'       => (all|any|phrase)  How to parse the query terms
     * 'results'    => int  How many results to return, max is 50
     * 'start'      => int  The start offset for search results
     * 'format'     => (any|avi|flash|mpeg|msmedia|quicktime|realmedia)  The type of videos to search for
     * 'adult_ok'   => bool  Flag to allow 'adult' videos.
     *
     * @param  string $query   the query to be run
     * @param  array  $options an optional array of query options
     * @return Zend_Service_Yahoo_VideoResultSet the search results
     * @throws Zend_Service_Exception
     */
    public function videoSearch($query, array $options = array())
    {
        static $defaultOptions = array('type'       => 'all',
                                       'results'    => 10,
                                       'start'      => 1,
                                       'format'     => 'any');

$options = $this->_prepareOptions($query, $options, $defaultOptions);

$this->_validateVideoSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/VideoSearchService/V1/videoSearch', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_YahooVideoResultSet
         */
        require_once 'Zend/Service/Yahoo/VideoResultSet.php';
        return new Zend_Service_Yahoo_VideoResultSet($dom);
    }

/**
     * Perform a web content search on search.yahoo.com.  A basic query
     * consists simply of a text query.  Additional options that can be
     * specified consist of:
     * 'results'    => int  How many results to return, max is 50
     * 'start'      => int  The start offset for search results
     * 'language'   => lang  The target document language to match
     * 'type'       => (all|any|phrase)  How the query should be parsed
     * 'site'       => string  A site to which your search should be restricted
     * 'format'     => (any|html|msword|pdf|ppt|rss|txt|xls)
     * 'adult_ok'   => bool  permit 'adult' content in the search results
     * 'similar_ok' => bool  permit similar results in the result set
     * 'country'    => string  The country code for the content searched
     * 'license'    => (any|cc_any|cc_commercial|cc_modifiable)  The license of content being searched
     * 'region'     => The regional search engine on which the service performs the search. default us.
     *
     * @param  string $query    the query being run
     * @param  array  $options  any optional parameters
     * @return Zend_Service_Yahoo_WebResultSet  The return set
     * @throws Zend_Service_Exception
     */
    public function webSearch($query, array $options = array())
    {
        static $defaultOptions = array('type'     => 'all',
                                       'start'    => 1,
                                       'license'  => 'any',
                                       'results'  => 10,
                                       'format'   => 'any');

$options = $this->_prepareOptions($query, $options, $defaultOptions);
        $this->_validateWebSearch($options);

$this->_rest->getHttpClient()->resetParameters();
        $this->_rest->setUri('http://search.yahooapis.com');
        $response = $this->_rest->restGet('/WebSearchService/V1/webSearch', $options);

$dom = new DOMDocument();
        $dom->loadXML($response->getBody());

self::_checkErrors($dom);

/**
         * @see Zend_Service_Yahoo_WebResultSet
         */
        require_once 'Zend/Service/Yahoo/WebResultSet.php';
        return new Zend_Service_Yahoo_WebResultSet($dom);
    }

/**
     * Returns a reference to the REST client
     *
     * @return Zend_Rest_Client
     */
    public function getRestClient()
    {
        return $this->_rest;
    }

/**
     * Validate Inlink Data Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateInlinkDataSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'results', 'start', 'entire_site', 'omit_inlinks');

$this->_compareOptions($options, $validOptions);

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 100, true);

if (isset($options['results']) && !$between->setMin(1)->setMax(100)->isValid($options['results'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'results': {$options['results']}");
        }

if (isset($options['start']) && !$between->setMin(1)->setMax(1000)->isValid($options['start'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'start': {$options['start']}");
        }

if (isset($options['omit_inlinks'])) {
            $this->_validateInArray('omit_inlinks', $options['omit_inlinks'], array('none', 'domain', 'subdomain'));
        }
    }

/**
     * Validate Image Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateImageSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'type', 'results', 'start', 'format', 'coloration', 'adult_ok');

$this->_compareOptions($options, $validOptions);

if (isset($options['type'])) {
            switch($options['type']) {
                case 'all':
                case 'any':
                case 'phrase':
                    break;
                default:
                    /**
                     * @see Zend_Service_Exception
                     */
                    require_once 'Zend/Service/Exception.php';
                    throw new Zend_Service_Exception("Invalid value for option 'type': '{$options['type']}'");
            }
        }

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 50, true);

if (isset($options['results']) && !$between->setMin(1)->setMax(50)->isValid($options['results'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'results': {$options['results']}");
        }

if (isset($options['format'])) {
            switch ($options['format']) {
                case 'any':
                case 'bmp':
                case 'gif':
                case 'jpeg':
                case 'png':
                    break;
                default:
                    /**
                     * @see Zend_Service_Exception
                     */
                    require_once 'Zend/Service/Exception.php';
                    throw new Zend_Service_Exception("Invalid value for option 'format': {$options['format']}");
            }
        }

if (isset($options['coloration'])) {
            switch ($options['coloration']) {
                case 'any':
                case 'color':
                case 'bw':
                    break;
                default:
                    /**
                     * @see Zend_Service_Exception
                     */
                    require_once 'Zend/Service/Exception.php';
                    throw new Zend_Service_Exception("Invalid value for option 'coloration': "
                                                   . "{$options['coloration']}");
            }
        }
    }

/**
     * Validate Local Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateLocalSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'results', 'start', 'sort', 'radius', 'street',
                              'city', 'state', 'zip', 'location', 'latitude', 'longitude');

$this->_compareOptions($options, $validOptions);

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 20, true);

if (isset($options['results']) && !$between->setMin(1)->setMax(20)->isValid($options['results'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'results': {$options['results']}");
        }

if (isset($options['longitude']) && !$between->setMin(-90)->setMax(90)->isValid($options['longitude'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'longitude': {$options['longitude']}");
        }

if (isset($options['latitude']) && !$between->setMin(-180)->setMax(180)->isValid($options['latitude'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'latitude': {$options['latitude']}");
        }

if (isset($options['zip']) && !preg_match('/(^\d{5}$)|(^\d{5}-\d{4}$)/', $options['zip'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'zip': {$options['zip']}");
        }

$hasLocation = false;
        $locationFields = array('street', 'city', 'state', 'zip', 'location');
        foreach ($locationFields as $field) {
            if (isset($options[$field]) && $options[$field] != '') {
                $hasLocation = true;
                break;
            }
        }

if (!$hasLocation && (!isset($options['latitude']) || !isset($options['longitude']))) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception('Location data are required but missing');
        }

if (!in_array($options['sort'], array('relevance', 'title', 'distance', 'rating'))) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option 'sort': {$options['sort']}");
        }
    }

/**
     * Validate News Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateNewsSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'results', 'start', 'sort', 'language', 'type', 'site');

$this->_compareOptions($options, $validOptions);

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 50, true);

if (isset($options['language'])) {
            $this->_validateLanguage($options['language']);
        }

$this->_validateInArray('sort', $options['sort'], array('rank', 'date'));
        $this->_validateInArray('type', $options['type'], array('all', 'any', 'phrase'));
    }

/**
     * Validate Page Data Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validatePageDataSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'results', 'start', 'domain_only');

$this->_compareOptions($options, $validOptions);

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 100, true);

/**
     * Validate Video Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateVideoSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'type', 'results', 'start', 'format', 'adult_ok');

$this->_compareOptions($options, $validOptions);

if (isset($options['type'])) {
            $this->_validateInArray('type', $options['type'], array('all', 'any', 'phrase'));
        }

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 50, true);

if (isset($options['format'])) {
            $this->_validateInArray('format', $options['format'], array('any', 'avi', 'flash', 'mpeg', 'msmedia', 'quicktime', 'realmedia'));
        }
    }

/**
     * Validate Web Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateWebSearch(array $options)
    {
        $validOptions = array('appid', 'query', 'results', 'start', 'language', 'type', 'format', 'adult_ok',
                              'similar_ok', 'country', 'site', 'subscription', 'license', 'region');

$this->_compareOptions($options, $validOptions);

/**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 100, true);

if (isset($options['language'])) {
            $this->_validateLanguage($options['language']);
        }

$this->_validateInArray('type', $options['type'], array('all', 'any', 'phrase'));
        $this->_validateInArray('format', $options['format'], array('any', 'html', 'msword', 'pdf', 'ppt', 'rss',
                                                                    'txt', 'xls'));
        $this->_validateInArray('license', $options['license'], array('any', 'cc_any', 'cc_commercial',
                                                                      'cc_modifiable'));
        if (isset($options['region'])){
            $this->_validateInArray('region', $options['region'], array('ar', 'au', 'at', 'br', 'ca', 'ct', 'dk', 'fi',
                                                                          'fr', 'de', 'in', 'id', 'it', 'my', 'mx', 
                                                                          'nl', 'no', 'ph', 'ru', 'sg', 'es', 'se',
                                                                          'ch', 'th', 'uk', 'us'));
        }
    }

/**
     * Prepare options for sending to Yahoo!
     *
     * @param  string $query          Search Query
     * @param  array  $options        User specified options
     * @param  array  $defaultOptions Required/Default options
     * @return array
     */
    protected function _prepareOptions($query, array $options, array $defaultOptions = array())
    {
        $options['appid'] = $this->appId;
        $options['query'] = (string) $query;

return array_merge($defaultOptions, $options);
    }

/**
     * Throws an exception if the chosen language is not supported
     *
     * @param  string $lang Language code
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateLanguage($lang)
    {
        $languages = array('ar', 'bg', 'ca', 'szh', 'tzh', 'hr', 'cs', 'da', 'nl', 'en', 'et', 'fi', 'fr', 'de', 'el',
            'he', 'hu', 'is', 'id', 'it', 'ja', 'ko', 'lv', 'lt', 'no', 'fa', 'pl', 'pt', 'ro', 'ru', 'sk', 'sr', 'sl',
            'es', 'sv', 'th', 'tr'
            );
        if (!in_array($lang, $languages)) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("The selected language '$lang' is not supported");
        }
    }

/**
     * Utility function to check for a difference between two arrays.
     *
     * @param  array $options      User specified options
     * @param  array $validOptions Valid options
     * @return void
     * @throws Zend_Service_Exception if difference is found (e.g., unsupported query option)
     */
    protected function _compareOptions(array $options, array $validOptions)
    {
        $difference = array_diff(array_keys($options), $validOptions);
        if ($difference) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception('The following parameters are invalid: ' . join(', ', $difference));
        }
    }

/**
     * Check that a named value is in the given array
     *
     * @param  string $name  Name associated with the value
     * @param  mixed  $value Value
     * @param  array  $array Array in which to check for the value
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateInArray($name, $value, array $array)
    {
        if (!in_array($value, $array)) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception("Invalid value for option '$name': $value");
        }
    }

/**
     * Check if response is an error
     *
     * @param  DOMDocument $dom DOM Object representing the result XML
     * @return void
     * @throws Zend_Service_Exception Thrown when the result from Yahoo! is an error
     */
    protected static function _checkErrors(DOMDocument $dom)
    {
        $xpath = new DOMXPath($dom);
        $xpath->registerNamespace('yapi', 'urn:yahoo:api');

if ($xpath->query('//yapi:Error')->length >= 1) {
            $message = $xpath->query('//yapi:Error/yapi:Message/text()')->item(0)->data;
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception($message);
        }
    }
}

Nama File / Folder	Size	Action
Amazon	--	NONE
Delicious	--	NONE
Flickr	--	NONE
Nirvanix	--	NONE
ReCaptcha	--	NONE
Simpy	--	NONE
SlideShare	--	NONE
StrikeIron	--	NONE
Technorati	--	NONE
Twitter	--	NONE
Yahoo	--	NONE
Akismet.php	10.363KB	Edit File Delete File Rename
Audioscrobbler.php	21.061KB	Edit File Delete File Rename
Delicious.php	18.343KB	Edit File Delete File Rename
Flickr.php	21.618KB	Edit File Delete File Rename
Nirvanix.php	3.513KB	Edit File Delete File Rename
ReCaptcha.php	12.653KB	Edit File Delete File Rename
Simpy.php	12.868KB	Edit File Delete File Rename
SlideShare.php	19.254KB	Edit File Delete File Rename
StrikeIron.php	2.94KB	Edit File Delete File Rename
Technorati.php	38.768KB	Edit File Delete File Rename
Twitter.php	22.12KB	Edit File Delete File Rename
Yahoo.php	35.457KB	Edit File Delete File Rename