C:/xampp/htdocs/moodle/lib/zend/Zend/Service/Delicious.php

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<?php

require_once 'Zend/Rest/Client.php';

require_once 'Zend/Json/Decoder.php';

require_once 'Zend/Service/Delicious/SimplePost.php';

require_once 'Zend/Service/Delicious/Post.php';

require_once 'Zend/Service/Delicious/PostList.php';


class Zend_Service_Delicious
{
    const API_URI = 'https://api.del.icio.us';

    const PATH_UPDATE        = '/v1/posts/update';
    const PATH_TAGS          = '/v1/tags/get';
    const PATH_TAG_RENAME    = '/v1/tags/rename';
    const PATH_BUNDLES       = '/v1/tags/bundles/all';
    const PATH_BUNDLE_DELETE = '/v1/tags/bundles/delete';
    const PATH_BUNDLE_ADD    = '/v1/tags/bundles/set';
    const PATH_DATES         = '/v1/posts/dates';
    const PATH_POST_DELETE   = '/v1/posts/delete';
    const PATH_POSTS_GET     = '/v1/posts/get';
    const PATH_POSTS_ALL     = '/v1/posts/all';
    const PATH_POSTS_ADD     = '/v1/posts/add';
    const PATH_POSTS_RECENT  = '/v1/posts/recent';

    const JSON_URI     = 'http://del.icio.us';
    const JSON_POSTS   = '/feeds/json/%s/%s';
    const JSON_TAGS    = '/feeds/json/tags/%s';
    const JSON_NETWORK = '/feeds/json/network/%s';
    const JSON_FANS    = '/feeds/json/fans/%s';
    const JSON_URL     = '/feeds/json/url/data';

    protected $_rest;

    protected $_authUname;

    protected $_authPass;

    protected static $_lastRequestTime = 0;

    public function __construct($uname = null, $pass = null)
    {
        $this->_rest = new Zend_Rest_Client();
        $this->_rest->getHttpClient()->setConfig(array('ssltransport' => 'ssl'));
        $this->setAuth($uname, $pass);
    }

    public function setAuth($uname, $pass)
    {
        $this->_authUname = $uname;
        $this->_authPass  = $pass;

        return $this;
    }

    public function getLastUpdate()
    {
        $response = $this->makeRequest(self::PATH_UPDATE);

        $rootNode = $response->documentElement;
        if ($rootNode && $rootNode->nodeName == 'update') {
            return new Zend_Date(strtotime($rootNode->getAttribute('time')));
        } else {
            require_once 'Zend/Service/Delicious/Exception.php';
            throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
        }
    }

    public function getTags()
    {
        $response = $this->makeRequest(self::PATH_TAGS);

        return self::_xmlResponseToArray($response, 'tags', 'tag', 'tag', 'count');
    }

    public function renameTag($old, $new)
    {
        $response = $this->makeRequest(self::PATH_TAG_RENAME, array('old' => $old, 'new' => $new));

        self::_evalXmlResult($response);

        return $this;
    }

    public function getBundles()
    {
        $response = $this->makeRequest(self::PATH_BUNDLES);

        $bundles = self::_xmlResponseToArray($response, 'bundles', 'bundle', 'name', 'tags');
        foreach ($bundles as &$tags) {
            $tags = explode(' ', $tags);
        }
        return $bundles;
    }

    public function addBundle($bundle, array $tags)
    {
        $tags = implode(' ', (array) $tags);
        $response = $this->makeRequest(self::PATH_BUNDLE_ADD, array('bundle' => $bundle, 'tags' => $tags));

        self::_evalXmlResult($response);

        return $this;
    }

    public function deleteBundle($bundle)
    {
        $response = $this->makeRequest(self::PATH_BUNDLE_DELETE, array('bundle' => $bundle));

        self::_evalXmlResult($response);

        return $this;
    }

    public function deletePost($url)
    {
        $response = $this->makeRequest(self::PATH_POST_DELETE, array('url' => $url));

        self::_evalXmlResult($response);

        return $this;
    }

    public function getDates($tag = null)
    {
        $parms = array();
        if ($tag) {
            $parms['tag'] = $tag;
        }

        $response = $this->makeRequest(self::PATH_DATES, $parms);

        return self::_xmlResponseToArray($response, 'dates', 'date', 'date', 'count');
    }

    public function getPosts($tag = null, Zend_Date $dt = null, $url = null)
    {
        $parms = array();
        if ($tag) {
            $parms['tag'] = $tag;
        }
        if ($url) {
            $parms['url'] = $url;
        }
        if ($dt) {
            $parms['dt'] = $dt->get('Y-m-d\TH:i:s\Z');
        }

        $response = $this->makeRequest(self::PATH_POSTS_GET, $parms);

        return $this->_parseXmlPostList($response);
    }

    public function getAllPosts($tag = null)
    {
        $parms = array();
        if ($tag) {
            $parms['tag'] = $tag;
        }

        $response = $this->makeRequest(self::PATH_POSTS_ALL, $parms);

        return $this->_parseXmlPostList($response);
    }

    public function getRecentPosts($tag = null, $count = 15)
    {
        $parms = array();
        if ($tag) {
            $parms['tag'] = $tag;
        }
        if ($count) {
            $parms['count'] = $count;
        }

        $response = $this->makeRequest(self::PATH_POSTS_RECENT, $parms);

        return $this->_parseXmlPostList($response);
    }

    public function createNewPost($title, $url)
    {
        return new Zend_Service_Delicious_Post($this, array('title' => $title, 'url' => $url));
    }

    public function getUserPosts($user, $count = null, $tag = null)
    {
        $parms = array();
        if ($count) {
            $parms['count'] = $count;
        }

        $path = sprintf(self::JSON_POSTS, $user, $tag);
        $res = $this->makeRequest($path, $parms, 'json');

        return new Zend_Service_Delicious_PostList($this, $res);
    }

    public function getUserTags($user, $atleast = null, $count = null, $sort = 'alpha')
    {
        $parms = array();
        if ($atleast) {
            $parms['atleast'] = $atleast;
        }
        if ($count) {
            $parms['count'] = $count;
        }
        if ($sort) {
            $parms['sort'] = $sort;
        }

        $path = sprintf(self::JSON_TAGS, $user);

        return $this->makeRequest($path, $parms, 'json');
    }

    public function getUserNetwork($user)
    {
        $path = sprintf(self::JSON_NETWORK, $user);
        return $this->makeRequest($path, array(), 'json');
    }

    public function getUserFans($user)
    {
        $path = sprintf(self::JSON_FANS, $user);
        return $this->makeRequest($path, array(), 'json');
    }

    public function getUrlDetails($url)
    {
        $parms = array('hash' => md5($url));

        $res = $this->makeRequest(self::JSON_URL, $parms, 'json');

        if(isset($res[0])) {
            return $res[0];
        } else {
            return null;
        }
    }

    public function makeRequest($path, array $parms = array(), $type = 'xml')
    {
        // if previous request was made less then 1 sec ago
        // wait until we can make a new request
        $timeDiff = microtime(true) - self::$_lastRequestTime;
        if ($timeDiff < 1) {
            usleep((1 - $timeDiff) * 1000000);
        }

        $this->_rest->getHttpClient()->setAuth($this->_authUname, $this->_authPass);

        switch ($type) {
            case 'xml':
                $this->_rest->setUri(self::API_URI);
                break;
            case 'json':
                $parms['raw'] = true;
                $this->_rest->setUri(self::JSON_URI);
                break;
            default:
                require_once 'Zend/Service/Delicious/Exception.php';
                throw new Zend_Service_Delicious_Exception('Unknown request type');
        }

        self::$_lastRequestTime = microtime(true);
        $response = $this->_rest->restGet($path, $parms);

        if (!$response->isSuccessful()) {
            require_once 'Zend/Service/Delicious/Exception.php';
            throw new Zend_Service_Delicious_Exception("Http client reported an error: '{$response->getMessage()}'");
        }

        $responseBody = $response->getBody();

        switch ($type) {
            case 'xml':
                $dom = new DOMDocument() ;

                if (!@$dom->loadXML($responseBody)) {
                    require_once 'Zend/Service/Delicious/Exception.php';
                    throw new Zend_Service_Delicious_Exception('XML Error');
                }

                return $dom;
            case 'json':
                return Zend_Json_Decoder::decode($responseBody);
        }
    }

    private static function _xmlResponseToArray(DOMDocument $response, $root, $child, $attKey, $attValue)
    {
        $rootNode = $response->documentElement;
        $arrOut = array();

        if ($rootNode->nodeName == $root) {
            $childNodes = $rootNode->childNodes;

            for ($i = 0; $i < $childNodes->length; $i++) {
                $currentNode = $childNodes->item($i);
                if ($currentNode->nodeName == $child) {
                    $arrOut[$currentNode->getAttribute($attKey)] = $currentNode->getAttribute($attValue);
                }
            }
        } else {
            require_once 'Zend/Service/Delicious/Exception.php';
            throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
        }

        return $arrOut;
    }

    private function _parseXmlPostList(DOMDocument $response)
    {
        $rootNode = $response->documentElement;

        if ($rootNode->nodeName == 'posts') {
            return new Zend_Service_Delicious_PostList($this, $rootNode->childNodes);
        } else {
            require_once 'Zend/Service/Delicious/Exception.php';
            throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
        }
    }

    private static function _evalXmlResult(DOMDocument $response)
    {
        $rootNode = $response->documentElement;

        if ($rootNode && $rootNode->nodeName == 'result') {

            if ($rootNode->hasAttribute('code')) {
                $strResponse = $rootNode->getAttribute('code');
            } else {
                $strResponse = $rootNode->nodeValue;
            }

            if ($strResponse != 'done' && $strResponse != 'ok') {
                require_once 'Zend/Service/Delicious/Exception.php';
                throw new Zend_Service_Delicious_Exception("del.icio.us web service: '{$strResponse}'");
            }
        } else {
            require_once 'Zend/Service/Delicious/Exception.php';
            throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
        }
    }
}