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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 Delicious
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Delicious.php 18951 2009-11-12 16:26:19Z alexander $
*/
/**
* @see Zend_Rest_Client
*/
require_once 'Zend/Rest/Client.php';
/**
* @see Zend_Json_Decoder
*/
require_once 'Zend/Json/Decoder.php';
/**
* @see Zend_Service_Delicious_SimplePost
*/
require_once 'Zend/Service/Delicious/SimplePost.php';
/**
* @see Zend_Service_Delicious_Post
*/
require_once 'Zend/Service/Delicious/Post.php';
/**
* @see Zend_Service_Delicious_PostList
*/
require_once 'Zend/Service/Delicious/PostList.php';
/**
* Zend_Service_Delicious is a concrete implementation of the del.icio.us web service
*
* @category Zend
* @package Zend_Service
* @subpackage Delicious
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
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';
/**
* Zend_Service_Rest instance
*
* @var Zend_Service_Rest
*/
protected $_rest;
/**
* Username
*
* @var string
*/
protected $_authUname;
/**
* Password
*
* @var string
*/
protected $_authPass;
/**
* Microtime of last request
*
* @var float
*/
protected static $_lastRequestTime = 0;
/**
* Constructs a new del.icio.us Web Services Client
*
* @param string $uname Client username
* @param string $pass Client password
* @return void
*/
public function __construct($uname = null, $pass = null)
{
$this->_rest = new Zend_Rest_Client();
$this->_rest->getHttpClient()->setConfig(array('ssltransport' => 'ssl'));
$this->setAuth($uname, $pass);
}
/**
* Set client username and password
*
* @param string $uname Client user name
* @param string $pass Client password
* @return Zend_Service_Delicious Provides a fluent interface
*/
public function setAuth($uname, $pass)
{
$this->_authUname = $uname;
$this->_authPass = $pass;
return $this;
}
/**
* Get time of the last update
*
* @throws Zend_Service_Delicious_Exception
* @return Zend_Date
*/
public function getLastUpdate()
{
$response = $this->makeRequest(self::PATH_UPDATE);
$rootNode = $response->documentElement;
if ($rootNode && $rootNode->nodeName == 'update') {
/**
* @todo replace strtotime() with Zend_Date equivalent
*/
return new Zend_Date(strtotime($rootNode->getAttribute('time')));
} else {
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
}
}
/**
* Get all tags, returning an array with tags as keys and number of corresponding posts as values
*
* @return array list of tags
*/
public function getTags()
{
$response = $this->makeRequest(self::PATH_TAGS);
return self::_xmlResponseToArray($response, 'tags', 'tag', 'tag', 'count');
}
/**
* Rename a tag
*
* @param string $old Old tag name
* @param string $new New tag name
* @return Zend_Service_Delicious Provides a fluent interface
*/
public function renameTag($old, $new)
{
$response = $this->makeRequest(self::PATH_TAG_RENAME, array('old' => $old, 'new' => $new));
self::_evalXmlResult($response);
return $this;
}
/**
* Get all bundles, returning an array with bundles as keys and array of tags as values
*
* @return array list of bundles
*/
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;
}
/**
* Adds a new bundle
*
* @param string $bundle Name of new bundle
* @param array $tags Array of tags
* @return Zend_Service_Delicious Provides a fluent interface
*/
public function addBundle($bundle, array $tags)
{
$tags = implode(' ', (array) $tags);
$response = $this->makeRequest(self::PATH_BUNDLE_ADD, array('bundle' => $bundle, 'tags' => $tags));
self::_evalXmlResult($response);
return $this;
}
/**
* Delete a bundle
*
* @param string $bundle Name of bundle to be deleted
* @return Zend_Service_Delicious Provides a fluent interface
*/
public function deleteBundle($bundle)
{
$response = $this->makeRequest(self::PATH_BUNDLE_DELETE, array('bundle' => $bundle));
self::_evalXmlResult($response);
return $this;
}
/**
* Delete a post
*
* @param string $url URL of post to be deleted
* @return Zend_Service_Delicious Provides a fluent interface
*/
public function deletePost($url)
{
$response = $this->makeRequest(self::PATH_POST_DELETE, array('url' => $url));
self::_evalXmlResult($response);
return $this;
}
/**
* Get number of posts by date
*
* Returns array where keys are dates and values are numbers of posts
*
* @param string $tag Optional filtering by tag
* @return array list of dates
*/
public function getDates($tag = null)
{
$parms = array();
if ($tag) {
$parms['tag'] = $tag;
}
$response = $this->makeRequest(self::PATH_DATES, $parms);
return self::_xmlResponseToArray($response, 'dates', 'date', 'date', 'count');
}
/**
* Get posts matching the arguments
*
* If no date or url is given, most recent date will be used
*
* @param string $tag Optional filtering by tag
* @param Zend_Date $dt Optional filtering by date
* @param string $url Optional filtering by url
* @throws Zend_Service_Delicious_Exception
* @return Zend_Service_Delicious_PostList
*/
public function getPosts($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);
}
/**
* Get all posts
*
* @param string $tag Optional filtering by tag
* @return Zend_Service_Delicious_PostList
*/
public function getAllPosts($tag = null)
{
$parms = array();
if ($tag) {
$parms['tag'] = $tag;
}
$response = $this->makeRequest(self::PATH_POSTS_ALL, $parms);
return $this->_parseXmlPostList($response);
}
/**
* Get recent posts
*
* @param string $tag Optional filtering by tag
* @param string $count Maximum number of posts to be returned (default 15)
* @return Zend_Service_Delicious_PostList
*/
public function getRecentPosts($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);
}
/**
* Create new post
*
* @return Zend_Service_Delicious_Post
*/
public function createNewPost($title, $url)
{
return new Zend_Service_Delicious_Post($this, array('title' => $title, 'url' => $url));
}
/**
* Get posts of a user
*
* @param string $user Owner of the posts
* @param int $count Number of posts (default 15, max. 100)
* @param string $tag Optional filtering by tag
* @return Zend_Service_Delicious_PostList
*/
public function getUserPosts($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);
}
/**
* Get tags of a user
*
* Returned array has tags as keys and number of posts as values
*
* @param string $user Owner of the posts
* @param int $atleast Include only tags for which there are at least ### number of posts
* @param int $count Number of tags to get (default all)
* @param string $sort Order of returned tags ('alpha' || 'count')
* @return array
*/
public function getUserTags($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');
}
/**
* Get network of a user
*
* @param string $user Owner of the network
* @return array
*/
public function getUserNetwork($user)
{
$path = sprintf(self::JSON_NETWORK, $user);
return $this->makeRequest($path, array(), 'json');
}
/**
* Get fans of a user
*
* @param string $user Owner of the fans
* @return array
*/
public function getUserFans($user)
{
$path = sprintf(self::JSON_FANS, $user);
return $this->makeRequest($path, array(), 'json');
}
/**
* Get details on a particular bookmarked URL
*
* Returned array contains four elements:
* - hash - md5 hash of URL
* - top_tags - array of tags and their respective usage counts
* - url - URL for which details were returned
* - total_posts - number of users that have bookmarked URL
*
* If URL hasen't been bookmarked null is returned.
*
* @param string $url URL for which to get details
* @return array
*/
public function getUrlDetails($url)
{
$parms = array('hash' => md5($url));
$res = $this->makeRequest(self::JSON_URL, $parms, 'json');
if(isset($res[0])) {
return $res[0];
} else {
return null;
}
}
/**
* Handles all GET requests to a web service
*
* @param string $path Path
* @param array $parms Array of GET parameters
* @param string $type Type of a request ("xml"|"json")
* @return mixed decoded response from web service
* @throws Zend_Service_Delicious_Exception
*/
public function makeRequest($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;
$this->_rest->setUri(self::JSON_URI);
break;
default:
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception('Unknown request type');
}
self::$_lastRequestTime = microtime(true);
$response = $this->_rest->restGet($path, $parms);
if (!$response->isSuccessful()) {
/**
* @see Zend_Service_Delicious_Exception
*/
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)) {
/**
* @see Zend_Service_Delicious_Exception
*/
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);
}
}
/**
* Transform XML string to array
*
* @param DOMDocument $response
* @param string $root Name of root tag
* @param string $child Name of children tags
* @param string $attKey Attribute of child tag to be used as a key
* @param string $attValue Attribute of child tag to be used as a value
* @return array
* @throws Zend_Service_Delicious_Exception
*/
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 {
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
}
return $arrOut;
}
/**
* Constructs Zend_Service_Delicious_PostList from XML response
*
* @param DOMDocument $response
* @return Zend_Service_Delicious_PostList
* @throws Zend_Service_Delicious_Exception
*/
private function _parseXmlPostList(DOMDocument $response)
{
$rootNode = $response->documentElement;
if ($rootNode->nodeName == 'posts') {
return new Zend_Service_Delicious_PostList($this, $rootNode->childNodes);
} else {
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
}
}
/**
* Evaluates XML response
*
* @param DOMDocument $response
* @return void
* @throws Zend_Service_Delicious_Exception
*/
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' && $strResponse != 'ok') {
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception("del.icio.us web service: '{$strResponse}'");
}
} else {
/**
* @see Zend_Service_Delicious_Exception
*/
require_once 'Zend/Service/Delicious/Exception.php';
throw new Zend_Service_Delicious_Exception('del.icio.us web service has returned something odd!');
}
}
}
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