flickr.php

Bug tracker, and reporter.

        }

        $options = array('api_key' => $this->apiKey, 'method' => $method, 'find_email' => (string) $email);

        $restClient = $this->getRestClient();
        $restClient->getHttpClient()->resetParameters();
        $response = $restClient->restGet('/services/rest/', $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);
        $xpath = new DOMXPath($dom);
        return (string) $xpath->query('//user')->item(0)->getAttribute('id');
    }


    /**
     * Returns Flickr photo details by for the given photo ID
     *
     * @param  string $id the NSID
     * @return array of Zend_Service_Flickr_Image, details for the specified image
     * @throws Zend_Service_Exception
     */
    public function getImageDetails($id)
    {
        static $method = 'flickr.photos.getSizes';

        if (empty($id)) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception('You must supply a photo ID');
        }

        $options = array('api_key' => $this->apiKey, 'method' => $method, 'photo_id' => $id);

        $restClient = $this->getRestClient();
        $restClient->getHttpClient()->resetParameters();
        $response = $restClient->restGet('/services/rest/', $options);

        $dom = new DOMDocument();
        $dom->loadXML($response->getBody());
        $xpath = new DOMXPath($dom);
        self::_checkErrors($dom);
        $retval = array();
        /**
         * @see Zend_Service_Flickr_Image
         */
        require_once 'Zend/Service/Flickr/Image.php';
        foreach ($xpath->query('//size') as $size) {
            $label = (string) $size->getAttribute('label');
            $retval[$label] = new Zend_Service_Flickr_Image($size);
        }

        return $retval;
    }


    /**
     * Returns a reference to the REST client, instantiating it if necessary
     *
     * @return Zend_Rest_Client
     */
    public function getRestClient()
    {
        if (null === $this->_restClient) {
            /**
             * @see Zend_Rest_Client
             */
            require_once 'Zend/Rest/Client.php';
            $this->_restClient = new Zend_Rest_Client(self::URI_BASE);
        }

        return $this->_restClient;
    }


    /**
     * Validate User Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateUserSearch(array $options)
    {
        $validOptions = array('api_key', 'method', 'user_id', 'per_page', 'page', 'extras', 'min_upload_date',
                              'min_taken_date', 'max_upload_date', 'max_taken_date');

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

        /**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 500, true);
        if (!$between->isValid($options['per_page'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception($options['per_page'] . ' is not valid for the "per_page" option');
        }

        /**
         * @see Zend_Validate_Int
         */
        require_once 'Zend/Validate/Int.php';
        $int = new Zend_Validate_Int();
        if (!$int->isValid($options['page'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception($options['page'] . ' is not valid for the "page" option');
        }

        // validate extras, which are delivered in csv format
        if ($options['extras']) {
            $extras = explode(',', $options['extras']);
            $validExtras = array('license', 'date_upload', 'date_taken', 'owner_name', 'icon_server');
            foreach($extras as $extra) {
                /**
                 * @todo The following does not do anything [yet], so it is commented out.
                 */
                //in_array(trim($extra), $validExtras);
            }
        }
    }


    /**
     * Validate Tag Search Options
     *
     * @param  array $options
     * @return void
     * @throws Zend_Service_Exception
     */
    protected function _validateTagSearch(array $options)
    {
        $validOptions = array('method', 'api_key', 'user_id', 'tags', 'tag_mode', 'text', 'min_upload_date',
                              'max_upload_date', 'min_taken_date', 'max_taken_date', 'license', 'sort',
                              'privacy_filter', 'bbox', 'accuracy', 'machine_tags', 'machine_tag_mode', 'group_id',
                              'extras', 'per_page', 'page');

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

        /**
         * @see Zend_Validate_Between
         */
        require_once 'Zend/Validate/Between.php';
        $between = new Zend_Validate_Between(1, 500, true);
        if (!$between->isValid($options['per_page'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception($options['per_page'] . ' is not valid for the "per_page" option');
        }

        /**
         * @see Zend_Validate_Int
         */
        require_once 'Zend/Validate/Int.php';
        $int = new Zend_Validate_Int();
        if (!$int->isValid($options['page'])) {
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception($options['page'] . ' is not valid for the "page" option');
        }

        // validate extras, which are delivered in csv format
        if ($options['extras']) {
            $extras = explode(',', $options['extras']);
            $validExtras = array('license', 'date_upload', 'date_taken', 'owner_name', 'icon_server');
            foreach($extras as $extra) {
                /**
                 * @todo The following does not do anything [yet], so it is commented out.
                 */
                //in_array(trim($extra), $validExtras);
            }
        }

    }


    /**
     * Throws an exception if and only if the response status indicates a failure
     *
     * @param  DOMDocument $dom
     * @return void
     * @throws Zend_Service_Exception
     */
    protected static function _checkErrors(DOMDocument $dom)
    {
        if ($dom->documentElement->getAttribute('stat') === 'fail') {
            $xpath = new DOMXPath($dom);
            $err = $xpath->query('//err')->item(0);
            /**
             * @see Zend_Service_Exception
             */
            require_once 'Zend/Service/Exception.php';
            throw new Zend_Service_Exception('Search failed due to error: ' . $err->getAttribute('msg')
                                           . ' (error #' . $err->getAttribute('code') . ')');
        }
    }


    /**
     * Prepare options for the request
     *
     * @param  string $method         Flickr Method to call
     * @param  array  $options        User Options
     * @param  array  $defaultOptions Default Options
     * @return array Merged array of user and default/required options
     */
    protected function _prepareOptions($method, array $options, array $defaultOptions)
    {
        $options['method']  = (string) $method;
        $options['api_key'] = $this->apiKey;

        return array_merge($defaultOptions, $options);
    }


    /**
     * Throws an exception if and only if any user options are invalid
     *
     * @param  array $options      User options
     * @param  array $validOptions Valid options
     * @return void
     * @throws Zend_Service_Exception
     */
    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: ' . implode(',', $difference));
        }
    }
}