diff --git a/README b/README
index 989fcb7f0a..2c9ae84d93 100644
--- a/README
+++ b/README
@@ -201,6 +201,10 @@ and the URLs are listed here for your convenience.
   version may render your Laconica site unable to send or receive XMPP
   messages.
 - Facebook library. Used for the Facebook application.
+- PEAR Services_oEmbed. Used for some multimedia integration.
+- PEAR HTTP_Request is an oEmbed dependency.
+- PEAR Validat is an oEmbed dependency.e
+- PEAR Net_URL is an oEmbed dependency.2
 
 A design goal of Laconica is that the basic Web functionality should
 work on even the most restrictive commercial hosting services.
diff --git a/extlib/HTTP/Request.php b/extlib/HTTP/Request.php
new file mode 100644
index 0000000000..42eac3b141
--- /dev/null
+++ b/extlib/HTTP/Request.php
@@ -0,0 +1,1521 @@
+<?php
+/**
+ * Class for performing HTTP requests
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE:
+ *
+ * Copyright (c) 2002-2007, Richard Heyes
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * o Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * o Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * o The names of the authors may not be used to endorse or promote
+ *   products derived from this software without specific prior written
+ *   permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category    HTTP
+ * @package     HTTP_Request
+ * @author      Richard Heyes <richard@phpguru.org>
+ * @author      Alexey Borzov <avb@php.net>
+ * @copyright   2002-2007 Richard Heyes
+ * @license     http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version     CVS: $Id: Request.php,v 1.63 2008/10/11 11:07:10 avb Exp $
+ * @link        http://pear.php.net/package/HTTP_Request/
+ */
+
+/**
+ * PEAR and PEAR_Error classes (for error handling)
+ */
+require_once 'PEAR.php';
+/**
+ * Socket class
+ */
+require_once 'Net/Socket.php';
+/**
+ * URL handling class
+ */
+require_once 'Net/URL.php';
+
+/**#@+
+ * Constants for HTTP request methods
+ */
+define('HTTP_REQUEST_METHOD_GET',     'GET',     true);
+define('HTTP_REQUEST_METHOD_HEAD',    'HEAD',    true);
+define('HTTP_REQUEST_METHOD_POST',    'POST',    true);
+define('HTTP_REQUEST_METHOD_PUT',     'PUT',     true);
+define('HTTP_REQUEST_METHOD_DELETE',  'DELETE',  true);
+define('HTTP_REQUEST_METHOD_OPTIONS', 'OPTIONS', true);
+define('HTTP_REQUEST_METHOD_TRACE',   'TRACE',   true);
+/**#@-*/
+
+/**#@+
+ * Constants for HTTP request error codes
+ */
+define('HTTP_REQUEST_ERROR_FILE',             1);
+define('HTTP_REQUEST_ERROR_URL',              2);
+define('HTTP_REQUEST_ERROR_PROXY',            4);
+define('HTTP_REQUEST_ERROR_REDIRECTS',        8);
+define('HTTP_REQUEST_ERROR_RESPONSE',        16);
+define('HTTP_REQUEST_ERROR_GZIP_METHOD',     32);
+define('HTTP_REQUEST_ERROR_GZIP_READ',       64);
+define('HTTP_REQUEST_ERROR_GZIP_DATA',      128);
+define('HTTP_REQUEST_ERROR_GZIP_CRC',       256);
+/**#@-*/
+
+/**#@+
+ * Constants for HTTP protocol versions
+ */
+define('HTTP_REQUEST_HTTP_VER_1_0', '1.0', true);
+define('HTTP_REQUEST_HTTP_VER_1_1', '1.1', true);
+/**#@-*/
+
+if (extension_loaded('mbstring') && (2 & ini_get('mbstring.func_overload'))) {
+   /**
+    * Whether string functions are overloaded by their mbstring equivalents
+    */
+    define('HTTP_REQUEST_MBSTRING', true);
+} else {
+   /**
+    * @ignore
+    */
+    define('HTTP_REQUEST_MBSTRING', false);
+}
+
+/**
+ * Class for performing HTTP requests
+ *
+ * Simple example (fetches yahoo.com and displays it):
+ * <code>
+ * $a = &new HTTP_Request('http://www.yahoo.com/');
+ * $a->sendRequest();
+ * echo $a->getResponseBody();
+ * </code>
+ *
+ * @category    HTTP
+ * @package     HTTP_Request
+ * @author      Richard Heyes <richard@phpguru.org>
+ * @author      Alexey Borzov <avb@php.net>
+ * @version     Release: 1.4.4
+ */
+class HTTP_Request
+{
+   /**#@+
+    * @access private
+    */
+    /**
+    * Instance of Net_URL
+    * @var Net_URL
+    */
+    var $_url;
+
+    /**
+    * Type of request
+    * @var string
+    */
+    var $_method;
+
+    /**
+    * HTTP Version
+    * @var string
+    */
+    var $_http;
+
+    /**
+    * Request headers
+    * @var array
+    */
+    var $_requestHeaders;
+
+    /**
+    * Basic Auth Username
+    * @var string
+    */
+    var $_user;
+
+    /**
+    * Basic Auth Password
+    * @var string
+    */
+    var $_pass;
+
+    /**
+    * Socket object
+    * @var Net_Socket
+    */
+    var $_sock;
+
+    /**
+    * Proxy server
+    * @var string
+    */
+    var $_proxy_host;
+
+    /**
+    * Proxy port
+    * @var integer
+    */
+    var $_proxy_port;
+
+    /**
+    * Proxy username
+    * @var string
+    */
+    var $_proxy_user;
+
+    /**
+    * Proxy password
+    * @var string
+    */
+    var $_proxy_pass;
+
+    /**
+    * Post data
+    * @var array
+    */
+    var $_postData;
+
+   /**
+    * Request body
+    * @var string
+    */
+    var $_body;
+
+   /**
+    * A list of methods that MUST NOT have a request body, per RFC 2616
+    * @var array
+    */
+    var $_bodyDisallowed = array('TRACE');
+
+   /**
+    * Methods having defined semantics for request body
+    *
+    * Content-Length header (indicating that the body follows, section 4.3 of
+    * RFC 2616) will be sent for these methods even if no body was added
+    *
+    * @var array
+    */
+    var $_bodyRequired = array('POST', 'PUT');
+
+   /**
+    * Files to post
+    * @var array
+    */
+    var $_postFiles = array();
+
+    /**
+    * Connection timeout.
+    * @var float
+    */
+    var $_timeout;
+
+    /**
+    * HTTP_Response object
+    * @var HTTP_Response
+    */
+    var $_response;
+
+    /**
+    * Whether to allow redirects
+    * @var boolean
+    */
+    var $_allowRedirects;
+
+    /**
+    * Maximum redirects allowed
+    * @var integer
+    */
+    var $_maxRedirects;
+
+    /**
+    * Current number of redirects
+    * @var integer
+    */
+    var $_redirects;
+
+   /**
+    * Whether to append brackets [] to array variables
+    * @var bool
+    */
+    var $_useBrackets = true;
+
+   /**
+    * Attached listeners
+    * @var array
+    */
+    var $_listeners = array();
+
+   /**
+    * Whether to save response body in response object property
+    * @var bool
+    */
+    var $_saveBody = true;
+
+   /**
+    * Timeout for reading from socket (array(seconds, microseconds))
+    * @var array
+    */
+    var $_readTimeout = null;
+
+   /**
+    * Options to pass to Net_Socket::connect. See stream_context_create
+    * @var array
+    */
+    var $_socketOptions = null;
+   /**#@-*/
+
+    /**
+    * Constructor
+    *
+    * Sets up the object
+    * @param    string  The url to fetch/access
+    * @param    array   Associative array of parameters which can have the following keys:
+    * <ul>
+    *   <li>method         - Method to use, GET, POST etc (string)</li>
+    *   <li>http           - HTTP Version to use, 1.0 or 1.1 (string)</li>
+    *   <li>user           - Basic Auth username (string)</li>
+    *   <li>pass           - Basic Auth password (string)</li>
+    *   <li>proxy_host     - Proxy server host (string)</li>
+    *   <li>proxy_port     - Proxy server port (integer)</li>
+    *   <li>proxy_user     - Proxy auth username (string)</li>
+    *   <li>proxy_pass     - Proxy auth password (string)</li>
+    *   <li>timeout        - Connection timeout in seconds (float)</li>
+    *   <li>allowRedirects - Whether to follow redirects or not (bool)</li>
+    *   <li>maxRedirects   - Max number of redirects to follow (integer)</li>
+    *   <li>useBrackets    - Whether to append [] to array variable names (bool)</li>
+    *   <li>saveBody       - Whether to save response body in response object property (bool)</li>
+    *   <li>readTimeout    - Timeout for reading / writing data over the socket (array (seconds, microseconds))</li>
+    *   <li>socketOptions  - Options to pass to Net_Socket object (array)</li>
+    * </ul>
+    * @access public
+    */
+    function HTTP_Request($url = '', $params = array())
+    {
+        $this->_method         =  HTTP_REQUEST_METHOD_GET;
+        $this->_http           =  HTTP_REQUEST_HTTP_VER_1_1;
+        $this->_requestHeaders = array();
+        $this->_postData       = array();
+        $this->_body           = null;
+
+        $this->_user = null;
+        $this->_pass = null;
+
+        $this->_proxy_host = null;
+        $this->_proxy_port = null;
+        $this->_proxy_user = null;
+        $this->_proxy_pass = null;
+
+        $this->_allowRedirects = false;
+        $this->_maxRedirects   = 3;
+        $this->_redirects      = 0;
+
+        $this->_timeout  = null;
+        $this->_response = null;
+
+        foreach ($params as $key => $value) {
+            $this->{'_' . $key} = $value;
+        }
+
+        if (!empty($url)) {
+            $this->setURL($url);
+        }
+
+        // Default useragent
+        $this->addHeader('User-Agent', 'PEAR HTTP_Request class ( http://pear.php.net/ )');
+
+        // We don't do keep-alives by default
+        $this->addHeader('Connection', 'close');
+
+        // Basic authentication
+        if (!empty($this->_user)) {
+            $this->addHeader('Authorization', 'Basic ' . base64_encode($this->_user . ':' . $this->_pass));
+        }
+
+        // Proxy authentication (see bug #5913)
+        if (!empty($this->_proxy_user)) {
+            $this->addHeader('Proxy-Authorization', 'Basic ' . base64_encode($this->_proxy_user . ':' . $this->_proxy_pass));
+        }
+
+        // Use gzip encoding if possible
+        if (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http && extension_loaded('zlib')) {
+            $this->addHeader('Accept-Encoding', 'gzip');
+        }
+    }
+
+    /**
+    * Generates a Host header for HTTP/1.1 requests
+    *
+    * @access private
+    * @return string
+    */
+    function _generateHostHeader()
+    {
+        if ($this->_url->port != 80 AND strcasecmp($this->_url->protocol, 'http') == 0) {
+            $host = $this->_url->host . ':' . $this->_url->port;
+
+        } elseif ($this->_url->port != 443 AND strcasecmp($this->_url->protocol, 'https') == 0) {
+            $host = $this->_url->host . ':' . $this->_url->port;
+
+        } elseif ($this->_url->port == 443 AND strcasecmp($this->_url->protocol, 'https') == 0 AND strpos($this->_url->url, ':443') !== false) {
+            $host = $this->_url->host . ':' . $this->_url->port;
+
+        } else {
+            $host = $this->_url->host;
+        }
+
+        return $host;
+    }
+
+    /**
+    * Resets the object to its initial state (DEPRECATED).
+    * Takes the same parameters as the constructor.
+    *
+    * @param  string $url    The url to be requested
+    * @param  array  $params Associative array of parameters
+    *                        (see constructor for details)
+    * @access public
+    * @deprecated deprecated since 1.2, call the constructor if this is necessary
+    */
+    function reset($url, $params = array())
+    {
+        $this->HTTP_Request($url, $params);
+    }
+
+    /**
+    * Sets the URL to be requested
+    *
+    * @param  string The url to be requested
+    * @access public
+    */
+    function setURL($url)
+    {
+        $this->_url = &new Net_URL($url, $this->_useBrackets);
+
+        if (!empty($this->_url->user) || !empty($this->_url->pass)) {
+            $this->setBasicAuth($this->_url->user, $this->_url->pass);
+        }
+
+        if (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http) {
+            $this->addHeader('Host', $this->_generateHostHeader());
+        }
+
+        // set '/' instead of empty path rather than check later (see bug #8662)
+        if (empty($this->_url->path)) {
+            $this->_url->path = '/';
+        }
+    }
+
+   /**
+    * Returns the current request URL
+    *
+    * @return   string  Current request URL
+    * @access   public
+    */
+    function getUrl()
+    {
+        return empty($this->_url)? '': $this->_url->getUrl();
+    }
+
+    /**
+    * Sets a proxy to be used
+    *
+    * @param string     Proxy host
+    * @param int        Proxy port
+    * @param string     Proxy username
+    * @param string     Proxy password
+    * @access public
+    */
+    function setProxy($host, $port = 8080, $user = null, $pass = null)
+    {
+        $this->_proxy_host = $host;
+        $this->_proxy_port = $port;
+        $this->_proxy_user = $user;
+        $this->_proxy_pass = $pass;
+
+        if (!empty($user)) {
+            $this->addHeader('Proxy-Authorization', 'Basic ' . base64_encode($user . ':' . $pass));
+        }
+    }
+
+    /**
+    * Sets basic authentication parameters
+    *
+    * @param string     Username
+    * @param string     Password
+    */
+    function setBasicAuth($user, $pass)
+    {
+        $this->_user = $user;
+        $this->_pass = $pass;
+
+        $this->addHeader('Authorization', 'Basic ' . base64_encode($user . ':' . $pass));
+    }
+
+    /**
+    * Sets the method to be used, GET, POST etc.
+    *
+    * @param string     Method to use. Use the defined constants for this
+    * @access public
+    */
+    function setMethod($method)
+    {
+        $this->_method = $method;
+    }
+
+    /**
+    * Sets the HTTP version to use, 1.0 or 1.1
+    *
+    * @param string     Version to use. Use the defined constants for this
+    * @access public
+    */
+    function setHttpVer($http)
+    {
+        $this->_http = $http;
+    }
+
+    /**
+    * Adds a request header
+    *
+    * @param string     Header name
+    * @param string     Header value
+    * @access public
+    */
+    function addHeader($name, $value)
+    {
+        $this->_requestHeaders[strtolower($name)] = $value;
+    }
+
+    /**
+    * Removes a request header
+    *
+    * @param string     Header name to remove
+    * @access public
+    */
+    function removeHeader($name)
+    {
+        if (isset($this->_requestHeaders[strtolower($name)])) {
+            unset($this->_requestHeaders[strtolower($name)]);
+        }
+    }
+
+    /**
+    * Adds a querystring parameter
+    *
+    * @param string     Querystring parameter name
+    * @param string     Querystring parameter value
+    * @param bool       Whether the value is already urlencoded or not, default = not
+    * @access public
+    */
+    function addQueryString($name, $value, $preencoded = false)
+    {
+        $this->_url->addQueryString($name, $value, $preencoded);
+    }
+
+    /**
+    * Sets the querystring to literally what you supply
+    *
+    * @param string     The querystring data. Should be of the format foo=bar&x=y etc
+    * @param bool       Whether data is already urlencoded or not, default = already encoded
+    * @access public
+    */
+    function addRawQueryString($querystring, $preencoded = true)
+    {
+        $this->_url->addRawQueryString($querystring, $preencoded);
+    }
+
+    /**
+    * Adds postdata items
+    *
+    * @param string     Post data name
+    * @param string     Post data value
+    * @param bool       Whether data is already urlencoded or not, default = not
+    * @access public
+    */
+    function addPostData($name, $value, $preencoded = false)
+    {
+        if ($preencoded) {
+            $this->_postData[$name] = $value;
+        } else {
+            $this->_postData[$name] = $this->_arrayMapRecursive('urlencode', $value);
+        }
+    }
+
+   /**
+    * Recursively applies the callback function to the value
+    *
+    * @param    mixed   Callback function
+    * @param    mixed   Value to process
+    * @access   private
+    * @return   mixed   Processed value
+    */
+    function _arrayMapRecursive($callback, $value)
+    {
+        if (!is_array($value)) {
+            return call_user_func($callback, $value);
+        } else {
+            $map = array();
+            foreach ($value as $k => $v) {
+                $map[$k] = $this->_arrayMapRecursive($callback, $v);
+            }
+            return $map;
+        }
+    }
+
+   /**
+    * Adds a file to form-based file upload
+    *
+    * Used to emulate file upload via a HTML form. The method also sets
+    * Content-Type of HTTP request to 'multipart/form-data'.
+    *
+    * If you just want to send the contents of a file as the body of HTTP
+    * request you should use setBody() method.
+    *
+    * @access public
+    * @param  string    name of file-upload field
+    * @param  mixed     file name(s)
+    * @param  mixed     content-type(s) of file(s) being uploaded
+    * @return bool      true on success
+    * @throws PEAR_Error
+    */
+    function addFile($inputName, $fileName, $contentType = 'application/octet-stream')
+    {
+        if (!is_array($fileName) && !is_readable($fileName)) {
+            return PEAR::raiseError("File '{$fileName}' is not readable", HTTP_REQUEST_ERROR_FILE);
+        } elseif (is_array($fileName)) {
+            foreach ($fileName as $name) {
+                if (!is_readable($name)) {
+                    return PEAR::raiseError("File '{$name}' is not readable", HTTP_REQUEST_ERROR_FILE);
+                }
+            }
+        }
+        $this->addHeader('Content-Type', 'multipart/form-data');
+        $this->_postFiles[$inputName] = array(
+            'name' => $fileName,
+            'type' => $contentType
+        );
+        return true;
+    }
+
+    /**
+    * Adds raw postdata (DEPRECATED)
+    *
+    * @param string     The data
+    * @param bool       Whether data is preencoded or not, default = already encoded
+    * @access public
+    * @deprecated       deprecated since 1.3.0, method setBody() should be used instead
+    */
+    function addRawPostData($postdata, $preencoded = true)
+    {
+        $this->_body = $preencoded ? $postdata : urlencode($postdata);
+    }
+
+   /**
+    * Sets the request body (for POST, PUT and similar requests)
+    *
+    * @param    string  Request body
+    * @access   public
+    */
+    function setBody($body)
+    {
+        $this->_body = $body;
+    }
+
+    /**
+    * Clears any postdata that has been added (DEPRECATED).
+    *
+    * Useful for multiple request scenarios.
+    *
+    * @access public
+    * @deprecated deprecated since 1.2
+    */
+    function clearPostData()
+    {
+        $this->_postData = null;
+    }
+
+    /**
+    * Appends a cookie to "Cookie:" header
+    *
+    * @param string $name cookie name
+    * @param string $value cookie value
+    * @access public
+    */
+    function addCookie($name, $value)
+    {
+        $cookies = isset($this->_requestHeaders['cookie']) ? $this->_requestHeaders['cookie']. '; ' : '';
+        $this->addHeader('Cookie', $cookies . $name . '=' . $value);
+    }
+
+    /**
+    * Clears any cookies that have been added (DEPRECATED).
+    *
+    * Useful for multiple request scenarios
+    *
+    * @access public
+    * @deprecated deprecated since 1.2
+    */
+    function clearCookies()
+    {
+        $this->removeHeader('Cookie');
+    }
+
+    /**
+    * Sends the request
+    *
+    * @access public
+    * @param  bool   Whether to store response body in Response object property,
+    *                set this to false if downloading a LARGE file and using a Listener
+    * @return mixed  PEAR error on error, true otherwise
+    */
+    function sendRequest($saveBody = true)
+    {
+        if (!is_a($this->_url, 'Net_URL')) {
+            return PEAR::raiseError('No URL given', HTTP_REQUEST_ERROR_URL);
+        }
+
+        $host = isset($this->_proxy_host) ? $this->_proxy_host : $this->_url->host;
+        $port = isset($this->_proxy_port) ? $this->_proxy_port : $this->_url->port;
+
+        if (strcasecmp($this->_url->protocol, 'https') == 0) {
+            // Bug #14127, don't try connecting to HTTPS sites without OpenSSL
+            if (version_compare(PHP_VERSION, '4.3.0', '<') || !extension_loaded('openssl')) {
+                return PEAR::raiseError('Need PHP 4.3.0 or later with OpenSSL support for https:// requests',
+                                        HTTP_REQUEST_ERROR_URL);
+            } elseif (isset($this->_proxy_host)) {
+                return PEAR::raiseError('HTTPS proxies are not supported', HTTP_REQUEST_ERROR_PROXY);
+            }
+            $host = 'ssl://' . $host;
+        }
+
+        // magic quotes may fuck up file uploads and chunked response processing
+        $magicQuotes = ini_get('magic_quotes_runtime');
+        ini_set('magic_quotes_runtime', false);
+
+        // RFC 2068, section 19.7.1: A client MUST NOT send the Keep-Alive
+        // connection token to a proxy server...
+        if (isset($this->_proxy_host) && !empty($this->_requestHeaders['connection']) &&
+            'Keep-Alive' == $this->_requestHeaders['connection'])
+        {
+            $this->removeHeader('connection');
+        }
+
+        $keepAlive = (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http && empty($this->_requestHeaders['connection'])) ||
+                     (!empty($this->_requestHeaders['connection']) && 'Keep-Alive' == $this->_requestHeaders['connection']);
+        $sockets   = &PEAR::getStaticProperty('HTTP_Request', 'sockets');
+        $sockKey   = $host . ':' . $port;
+        unset($this->_sock);
+
+        // There is a connected socket in the "static" property?
+        if ($keepAlive && !empty($sockets[$sockKey]) &&
+            !empty($sockets[$sockKey]->fp))
+        {
+            $this->_sock =& $sockets[$sockKey];
+            $err = null;
+        } else {
+            $this->_notify('connect');
+            $this->_sock =& new Net_Socket();
+            $err = $this->_sock->connect($host, $port, null, $this->_timeout, $this->_socketOptions);
+        }
+        PEAR::isError($err) or $err = $this->_sock->write($this->_buildRequest());
+
+        if (!PEAR::isError($err)) {
+            if (!empty($this->_readTimeout)) {
+                $this->_sock->setTimeout($this->_readTimeout[0], $this->_readTimeout[1]);
+            }
+
+            $this->_notify('sentRequest');
+
+            // Read the response
+            $this->_response = &new HTTP_Response($this->_sock, $this->_listeners);
+            $err = $this->_response->process(
+                $this->_saveBody && $saveBody,
+                HTTP_REQUEST_METHOD_HEAD != $this->_method
+            );
+
+            if ($keepAlive) {
+                $keepAlive = (isset($this->_response->_headers['content-length'])
+                              || (isset($this->_response->_headers['transfer-encoding'])
+                                  && strtolower($this->_response->_headers['transfer-encoding']) == 'chunked'));
+                if ($keepAlive) {
+                    if (isset($this->_response->_headers['connection'])) {
+                        $keepAlive = strtolower($this->_response->_headers['connection']) == 'keep-alive';
+                    } else {
+                        $keepAlive = 'HTTP/'.HTTP_REQUEST_HTTP_VER_1_1 == $this->_response->_protocol;
+                    }
+                }
+            }
+        }
+
+        ini_set('magic_quotes_runtime', $magicQuotes);
+
+        if (PEAR::isError($err)) {
+            return $err;
+        }
+
+        if (!$keepAlive) {
+            $this->disconnect();
+        // Store the connected socket in "static" property
+        } elseif (empty($sockets[$sockKey]) || empty($sockets[$sockKey]->fp)) {
+            $sockets[$sockKey] =& $this->_sock;
+        }
+
+        // Check for redirection
+        if (    $this->_allowRedirects
+            AND $this->_redirects <= $this->_maxRedirects
+            AND $this->getResponseCode() > 300
+            AND $this->getResponseCode() < 399
+            AND !empty($this->_response->_headers['location'])) {
+
+
+            $redirect = $this->_response->_headers['location'];
+
+            // Absolute URL
+            if (preg_match('/^https?:\/\//i', $redirect)) {
+                $this->_url = &new Net_URL($redirect);
+                $this->addHeader('Host', $this->_generateHostHeader());
+            // Absolute path
+            } elseif ($redirect{0} == '/') {
+                $this->_url->path = $redirect;
+
+            // Relative path
+            } elseif (substr($redirect, 0, 3) == '../' OR substr($redirect, 0, 2) == './') {
+                if (substr($this->_url->path, -1) == '/') {
+                    $redirect = $this->_url->path . $redirect;
+                } else {
+                    $redirect = dirname($this->_url->path) . '/' . $redirect;
+                }
+                $redirect = Net_URL::resolvePath($redirect);
+                $this->_url->path = $redirect;
+
+            // Filename, no path
+            } else {
+                if (substr($this->_url->path, -1) == '/') {
+                    $redirect = $this->_url->path . $redirect;
+                } else {
+                    $redirect = dirname($this->_url->path) . '/' . $redirect;
+                }
+                $this->_url->path = $redirect;
+            }
+
+            $this->_redirects++;
+            return $this->sendRequest($saveBody);
+
+        // Too many redirects
+        } elseif ($this->_allowRedirects AND $this->_redirects > $this->_maxRedirects) {
+            return PEAR::raiseError('Too many redirects', HTTP_REQUEST_ERROR_REDIRECTS);
+        }
+
+        return true;
+    }
+
+    /**
+     * Disconnect the socket, if connected. Only useful if using Keep-Alive.
+     *
+     * @access public
+     */
+    function disconnect()
+    {
+        if (!empty($this->_sock) && !empty($this->_sock->fp)) {
+            $this->_notify('disconnect');
+            $this->_sock->disconnect();
+        }
+    }
+
+    /**
+    * Returns the response code
+    *
+    * @access public
+    * @return mixed     Response code, false if not set
+    */
+    function getResponseCode()
+    {
+        return isset($this->_response->_code) ? $this->_response->_code : false;
+    }
+
+    /**
+    * Returns the response reason phrase
+    *
+    * @access public
+    * @return mixed     Response reason phrase, false if not set
+    */
+    function getResponseReason()
+    {
+        return isset($this->_response->_reason) ? $this->_response->_reason : false;
+    }
+
+    /**
+    * Returns either the named header or all if no name given
+    *
+    * @access public
+    * @param string     The header name to return, do not set to get all headers
+    * @return mixed     either the value of $headername (false if header is not present)
+    *                   or an array of all headers
+    */
+    function getResponseHeader($headername = null)
+    {
+        if (!isset($headername)) {
+            return isset($this->_response->_headers)? $this->_response->_headers: array();
+        } else {
+            $headername = strtolower($headername);
+            return isset($this->_response->_headers[$headername]) ? $this->_response->_headers[$headername] : false;
+        }
+    }
+
+    /**
+    * Returns the body of the response
+    *
+    * @access public
+    * @return mixed     response body, false if not set
+    */
+    function getResponseBody()
+    {
+        return isset($this->_response->_body) ? $this->_response->_body : false;
+    }
+
+    /**
+    * Returns cookies set in response
+    *
+    * @access public
+    * @return mixed     array of response cookies, false if none are present
+    */
+    function getResponseCookies()
+    {
+        return isset($this->_response->_cookies) ? $this->_response->_cookies : false;
+    }
+
+    /**
+    * Builds the request string
+    *
+    * @access private
+    * @return string The request string
+    */
+    function _buildRequest()
+    {
+        $separator = ini_get('arg_separator.output');
+        ini_set('arg_separator.output', '&');
+        $querystring = ($querystring = $this->_url->getQueryString()) ? '?' . $querystring : '';
+        ini_set('arg_separator.output', $separator);
+
+        $host = isset($this->_proxy_host) ? $this->_url->protocol . '://' . $this->_url->host : '';
+        $port = (isset($this->_proxy_host) AND $this->_url->port != 80) ? ':' . $this->_url->port : '';
+        $path = $this->_url->path . $querystring;
+        $url  = $host . $port . $path;
+
+        if (!strlen($url)) {
+            $url = '/';
+        }
+
+        $request = $this->_method . ' ' . $url . ' HTTP/' . $this->_http . "\r\n";
+
+        if (in_array($this->_method, $this->_bodyDisallowed) ||
+            (0 == strlen($this->_body) && (HTTP_REQUEST_METHOD_POST != $this->_method ||
+             (empty($this->_postData) && empty($this->_postFiles)))))
+        {
+            $this->removeHeader('Content-Type');
+        } else {
+            if (empty($this->_requestHeaders['content-type'])) {
+                // Add default content-type
+                $this->addHeader('Content-Type', 'application/x-www-form-urlencoded');
+            } elseif ('multipart/form-data' == $this->_requestHeaders['content-type']) {
+                $boundary = 'HTTP_Request_' . md5(uniqid('request') . microtime());
+                $this->addHeader('Content-Type', 'multipart/form-data; boundary=' . $boundary);
+            }
+        }
+
+        // Request Headers
+        if (!empty($this->_requestHeaders)) {
+            foreach ($this->_requestHeaders as $name => $value) {
+                $canonicalName = implode('-', array_map('ucfirst', explode('-', $name)));
+                $request      .= $canonicalName . ': ' . $value . "\r\n";
+            }
+        }
+
+        // Method does not allow a body, simply add a final CRLF
+        if (in_array($this->_method, $this->_bodyDisallowed)) {
+
+            $request .= "\r\n";
+
+        // Post data if it's an array
+        } elseif (HTTP_REQUEST_METHOD_POST == $this->_method &&
+                  (!empty($this->_postData) || !empty($this->_postFiles))) {
+
+            // "normal" POST request
+            if (!isset($boundary)) {
+                $postdata = implode('&', array_map(
+                    create_function('$a', 'return $a[0] . \'=\' . $a[1];'),
+                    $this->_flattenArray('', $this->_postData)
+                ));
+
+            // multipart request, probably with file uploads
+            } else {
+                $postdata = '';
+                if (!empty($this->_postData)) {
+                    $flatData = $this->_flattenArray('', $this->_postData);
+                    foreach ($flatData as $item) {
+                        $postdata .= '--' . $boundary . "\r\n";
+                        $postdata .= 'Content-Disposition: form-data; name="' . $item[0] . '"';
+                        $postdata .= "\r\n\r\n" . urldecode($item[1]) . "\r\n";
+                    }
+                }
+                foreach ($this->_postFiles as $name => $value) {
+                    if (is_array($value['name'])) {
+                        $varname       = $name . ($this->_useBrackets? '[]': '');
+                    } else {
+                        $varname       = $name;
+                        $value['name'] = array($value['name']);
+                    }
+                    foreach ($value['name'] as $key => $filename) {
+                        $fp       = fopen($filename, 'r');
+                        $basename = basename($filename);
+                        $type     = is_array($value['type'])? @$value['type'][$key]: $value['type'];
+
+                        $postdata .= '--' . $boundary . "\r\n";
+                        $postdata .= 'Content-Disposition: form-data; name="' . $varname . '"; filename="' . $basename . '"';
+                        $postdata .= "\r\nContent-Type: " . $type;
+                        $postdata .= "\r\n\r\n" . fread($fp, filesize($filename)) . "\r\n";
+                        fclose($fp);
+                    }
+                }
+                $postdata .= '--' . $boundary . "--\r\n";
+            }
+            $request .= 'Content-Length: ' .
+                        (HTTP_REQUEST_MBSTRING? mb_strlen($postdata, 'iso-8859-1'): strlen($postdata)) .
+                        "\r\n\r\n";
+            $request .= $postdata;
+
+        // Explicitly set request body
+        } elseif (0 < strlen($this->_body)) {
+
+            $request .= 'Content-Length: ' .
+                        (HTTP_REQUEST_MBSTRING? mb_strlen($this->_body, 'iso-8859-1'): strlen($this->_body)) .
+                        "\r\n\r\n";
+            $request .= $this->_body;
+
+        // No body: send a Content-Length header nonetheless (request #12900),
+        // but do that only for methods that require a body (bug #14740)
+        } else {
+
+            if (in_array($this->_method, $this->_bodyRequired)) {
+                $request .= "Content-Length: 0\r\n";
+            }
+            $request .= "\r\n";
+        }
+
+        return $request;
+    }
+
+   /**
+    * Helper function to change the (probably multidimensional) associative array
+    * into the simple one.
+    *
+    * @param    string  name for item
+    * @param    mixed   item's values
+    * @return   array   array with the following items: array('item name', 'item value');
+    * @access   private
+    */
+    function _flattenArray($name, $values)
+    {
+        if (!is_array($values)) {
+            return array(array($name, $values));
+        } else {
+            $ret = array();
+            foreach ($values as $k => $v) {
+                if (empty($name)) {
+                    $newName = $k;
+                } elseif ($this->_useBrackets) {
+                    $newName = $name . '[' . $k . ']';
+                } else {
+                    $newName = $name;
+                }
+                $ret = array_merge($ret, $this->_flattenArray($newName, $v));
+            }
+            return $ret;
+        }
+    }
+
+
+   /**
+    * Adds a Listener to the list of listeners that are notified of
+    * the object's events
+    *
+    * Events sent by HTTP_Request object
+    * - 'connect': on connection to server
+    * - 'sentRequest': after the request was sent
+    * - 'disconnect': on disconnection from server
+    *
+    * Events sent by HTTP_Response object
+    * - 'gotHeaders': after receiving response headers (headers are passed in $data)
+    * - 'tick': on receiving a part of response body (the part is passed in $data)
+    * - 'gzTick': on receiving a gzip-encoded part of response body (ditto)
+    * - 'gotBody': after receiving the response body (passes the decoded body in $data if it was gzipped)
+    *
+    * @param    HTTP_Request_Listener   listener to attach
+    * @return   boolean                 whether the listener was successfully attached
+    * @access   public
+    */
+    function attach(&$listener)
+    {
+        if (!is_a($listener, 'HTTP_Request_Listener')) {
+            return false;
+        }
+        $this->_listeners[$listener->getId()] =& $listener;
+        return true;
+    }
+
+
+   /**
+    * Removes a Listener from the list of listeners
+    *
+    * @param    HTTP_Request_Listener   listener to detach
+    * @return   boolean                 whether the listener was successfully detached
+    * @access   public
+    */
+    function detach(&$listener)
+    {
+        if (!is_a($listener, 'HTTP_Request_Listener') ||
+            !isset($this->_listeners[$listener->getId()])) {
+            return false;
+        }
+        unset($this->_listeners[$listener->getId()]);
+        return true;
+    }
+
+
+   /**
+    * Notifies all registered listeners of an event.
+    *
+    * @param    string  Event name
+    * @param    mixed   Additional data
+    * @access   private
+    * @see      HTTP_Request::attach()
+    */
+    function _notify($event, $data = null)
+    {
+        foreach (array_keys($this->_listeners) as $id) {
+            $this->_listeners[$id]->update($this, $event, $data);
+        }
+    }
+}
+
+
+/**
+ * Response class to complement the Request class
+ *
+ * @category    HTTP
+ * @package     HTTP_Request
+ * @author      Richard Heyes <richard@phpguru.org>
+ * @author      Alexey Borzov <avb@php.net>
+ * @version     Release: 1.4.4
+ */
+class HTTP_Response
+{
+    /**
+    * Socket object
+    * @var Net_Socket
+    */
+    var $_sock;
+
+    /**
+    * Protocol
+    * @var string
+    */
+    var $_protocol;
+
+    /**
+    * Return code
+    * @var string
+    */
+    var $_code;
+
+    /**
+    * Response reason phrase
+    * @var string
+    */
+    var $_reason;
+
+    /**
+    * Response headers
+    * @var array
+    */
+    var $_headers;
+
+    /**
+    * Cookies set in response
+    * @var array
+    */
+    var $_cookies;
+
+    /**
+    * Response body
+    * @var string
+    */
+    var $_body = '';
+
+   /**
+    * Used by _readChunked(): remaining length of the current chunk
+    * @var string
+    */
+    var $_chunkLength = 0;
+
+   /**
+    * Attached listeners
+    * @var array
+    */
+    var $_listeners = array();
+
+   /**
+    * Bytes left to read from message-body
+    * @var null|int
+    */
+    var $_toRead;
+
+    /**
+    * Constructor
+    *
+    * @param  Net_Socket    socket to read the response from
+    * @param  array         listeners attached to request
+    */
+    function HTTP_Response(&$sock, &$listeners)
+    {
+        $this->_sock      =& $sock;
+        $this->_listeners =& $listeners;
+    }
+
+
+   /**
+    * Processes a HTTP response
+    *
+    * This extracts response code, headers, cookies and decodes body if it
+    * was encoded in some way
+    *
+    * @access public
+    * @param  bool      Whether to store response body in object property, set
+    *                   this to false if downloading a LARGE file and using a Listener.
+    *                   This is assumed to be true if body is gzip-encoded.
+    * @param  bool      Whether the response can actually have a message-body.
+    *                   Will be set to false for HEAD requests.
+    * @throws PEAR_Error
+    * @return mixed     true on success, PEAR_Error in case of malformed response
+    */
+    function process($saveBody = true, $canHaveBody = true)
+    {
+        do {
+            $line = $this->_sock->readLine();
+            if (!preg_match('!^(HTTP/\d\.\d) (\d{3})(?: (.+))?!', $line, $s)) {
+                return PEAR::raiseError('Malformed response', HTTP_REQUEST_ERROR_RESPONSE);
+            } else {
+                $this->_protocol = $s[1];
+                $this->_code     = intval($s[2]);
+                $this->_reason   = empty($s[3])? null: $s[3];
+            }
+            while ('' !== ($header = $this->_sock->readLine())) {
+                $this->_processHeader($header);
+            }
+        } while (100 == $this->_code);
+
+        $this->_notify('gotHeaders', $this->_headers);
+
+        // RFC 2616, section 4.4:
+        // 1. Any response message which "MUST NOT" include a message-body ...
+        // is always terminated by the first empty line after the header fields
+        // 3. ... If a message is received with both a
+        // Transfer-Encoding header field and a Content-Length header field,
+        // the latter MUST be ignored.
+        $canHaveBody = $canHaveBody && $this->_code >= 200 &&
+                       $this->_code != 204 && $this->_code != 304;
+
+        // If response body is present, read it and decode
+        $chunked = isset($this->_headers['transfer-encoding']) && ('chunked' == $this->_headers['transfer-encoding']);
+        $gzipped = isset($this->_headers['content-encoding']) && ('gzip' == $this->_headers['content-encoding']);
+        $hasBody = false;
+        if ($canHaveBody && ($chunked || !isset($this->_headers['content-length']) ||
+                0 != $this->_headers['content-length']))
+        {
+            if ($chunked || !isset($this->_headers['content-length'])) {
+                $this->_toRead = null;
+            } else {
+                $this->_toRead = $this->_headers['content-length'];
+            }
+            while (!$this->_sock->eof() && (is_null($this->_toRead) || 0 < $this->_toRead)) {
+                if ($chunked) {
+                    $data = $this->_readChunked();
+                } elseif (is_null($this->_toRead)) {
+                    $data = $this->_sock->read(4096);
+                } else {
+                    $data = $this->_sock->read(min(4096, $this->_toRead));
+                    $this->_toRead -= HTTP_REQUEST_MBSTRING? mb_strlen($data, 'iso-8859-1'): strlen($data);
+                }
+                if ('' == $data && (!$this->_chunkLength || $this->_sock->eof())) {
+                    break;
+                } else {
+                    $hasBody = true;
+                    if ($saveBody || $gzipped) {
+                        $this->_body .= $data;
+                    }
+                    $this->_notify($gzipped? 'gzTick': 'tick', $data);
+                }
+            }
+        }
+
+        if ($hasBody) {
+            // Uncompress the body if needed
+            if ($gzipped) {
+                $body = $this->_decodeGzip($this->_body);
+                if (PEAR::isError($body)) {
+                    return $body;
+                }
+                $this->_body = $body;
+                $this->_notify('gotBody', $this->_body);
+            } else {
+                $this->_notify('gotBody');
+            }
+        }
+        return true;
+    }
+
+
+   /**
+    * Processes the response header
+    *
+    * @access private
+    * @param  string    HTTP header
+    */
+    function _processHeader($header)
+    {
+        if (false === strpos($header, ':')) {
+            return;
+        }
+        list($headername, $headervalue) = explode(':', $header, 2);
+        $headername  = strtolower($headername);
+        $headervalue = ltrim($headervalue);
+
+        if ('set-cookie' != $headername) {
+            if (isset($this->_headers[$headername])) {
+                $this->_headers[$headername] .= ',' . $headervalue;
+            } else {
+                $this->_headers[$headername]  = $headervalue;
+            }
+        } else {
+            $this->_parseCookie($headervalue);
+        }
+    }
+
+
+   /**
+    * Parse a Set-Cookie header to fill $_cookies array
+    *
+    * @access private
+    * @param  string    value of Set-Cookie header
+    */
+    function _parseCookie($headervalue)
+    {
+        $cookie = array(
+            'expires' => null,
+            'domain'  => null,
+            'path'    => null,
+            'secure'  => false
+        );
+
+        // Only a name=value pair
+        if (!strpos($headervalue, ';')) {
+            $pos = strpos($headervalue, '=');
+            $cookie['name']  = trim(substr($headervalue, 0, $pos));
+            $cookie['value'] = trim(substr($headervalue, $pos + 1));
+
+        // Some optional parameters are supplied
+        } else {
+            $elements = explode(';', $headervalue);
+            $pos = strpos($elements[0], '=');
+            $cookie['name']  = trim(substr($elements[0], 0, $pos));
+            $cookie['value'] = trim(substr($elements[0], $pos + 1));
+
+            for ($i = 1; $i < count($elements); $i++) {
+                if (false === strpos($elements[$i], '=')) {
+                    $elName  = trim($elements[$i]);
+                    $elValue = null;
+                } else {
+                    list ($elName, $elValue) = array_map('trim', explode('=', $elements[$i]));
+                }
+                $elName = strtolower($elName);
+                if ('secure' == $elName) {
+                    $cookie['secure'] = true;
+                } elseif ('expires' == $elName) {
+                    $cookie['expires'] = str_replace('"', '', $elValue);
+                } elseif ('path' == $elName || 'domain' == $elName) {
+                    $cookie[$elName] = urldecode($elValue);
+                } else {
+                    $cookie[$elName] = $elValue;
+                }
+            }
+        }
+        $this->_cookies[] = $cookie;
+    }
+
+
+   /**
+    * Read a part of response body encoded with chunked Transfer-Encoding
+    *
+    * @access private
+    * @return string
+    */
+    function _readChunked()
+    {
+        // at start of the next chunk?
+        if (0 == $this->_chunkLength) {
+            $line = $this->_sock->readLine();
+            if (preg_match('/^([0-9a-f]+)/i', $line, $matches)) {
+                $this->_chunkLength = hexdec($matches[1]);
+                // Chunk with zero length indicates the end
+                if (0 == $this->_chunkLength) {
+                    $this->_sock->readLine(); // make this an eof()
+                    return '';
+                }
+            } else {
+                return '';
+            }
+        }
+        $data = $this->_sock->read($this->_chunkLength);
+        $this->_chunkLength -= HTTP_REQUEST_MBSTRING? mb_strlen($data, 'iso-8859-1'): strlen($data);
+        if (0 == $this->_chunkLength) {
+            $this->_sock->readLine(); // Trailing CRLF
+        }
+        return $data;
+    }
+
+
+   /**
+    * Notifies all registered listeners of an event.
+    *
+    * @param    string  Event name
+    * @param    mixed   Additional data
+    * @access   private
+    * @see HTTP_Request::_notify()
+    */
+    function _notify($event, $data = null)
+    {
+        foreach (array_keys($this->_listeners) as $id) {
+            $this->_listeners[$id]->update($this, $event, $data);
+        }
+    }
+
+
+   /**
+    * Decodes the message-body encoded by gzip
+    *
+    * The real decoding work is done by gzinflate() built-in function, this
+    * method only parses the header and checks data for compliance with
+    * RFC 1952
+    *
+    * @access   private
+    * @param    string  gzip-encoded data
+    * @return   string  decoded data
+    */
+    function _decodeGzip($data)
+    {
+        if (HTTP_REQUEST_MBSTRING) {
+            $oldEncoding = mb_internal_encoding();
+            mb_internal_encoding('iso-8859-1');
+        }
+        $length = strlen($data);
+        // If it doesn't look like gzip-encoded data, don't bother
+        if (18 > $length || strcmp(substr($data, 0, 2), "\x1f\x8b")) {
+            return $data;
+        }
+        $method = ord(substr($data, 2, 1));
+        if (8 != $method) {
+            return PEAR::raiseError('_decodeGzip(): unknown compression method', HTTP_REQUEST_ERROR_GZIP_METHOD);
+        }
+        $flags = ord(substr($data, 3, 1));
+        if ($flags & 224) {
+            return PEAR::raiseError('_decodeGzip(): reserved bits are set', HTTP_REQUEST_ERROR_GZIP_DATA);
+        }
+
+        // header is 10 bytes minimum. may be longer, though.
+        $headerLength = 10;
+        // extra fields, need to skip 'em
+        if ($flags & 4) {
+            if ($length - $headerLength - 2 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $extraLength = unpack('v', substr($data, 10, 2));
+            if ($length - $headerLength - 2 - $extraLength[1] < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $headerLength += $extraLength[1] + 2;
+        }
+        // file name, need to skip that
+        if ($flags & 8) {
+            if ($length - $headerLength - 1 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $filenameLength = strpos(substr($data, $headerLength), chr(0));
+            if (false === $filenameLength || $length - $headerLength - $filenameLength - 1 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $headerLength += $filenameLength + 1;
+        }
+        // comment, need to skip that also
+        if ($flags & 16) {
+            if ($length - $headerLength - 1 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $commentLength = strpos(substr($data, $headerLength), chr(0));
+            if (false === $commentLength || $length - $headerLength - $commentLength - 1 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $headerLength += $commentLength + 1;
+        }
+        // have a CRC for header. let's check
+        if ($flags & 1) {
+            if ($length - $headerLength - 2 < 8) {
+                return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
+            }
+            $crcReal   = 0xffff & crc32(substr($data, 0, $headerLength));
+            $crcStored = unpack('v', substr($data, $headerLength, 2));
+            if ($crcReal != $crcStored[1]) {
+                return PEAR::raiseError('_decodeGzip(): header CRC check failed', HTTP_REQUEST_ERROR_GZIP_CRC);
+            }
+            $headerLength += 2;
+        }
+        // unpacked data CRC and size at the end of encoded data
+        $tmp = unpack('V2', substr($data, -8));
+        $dataCrc  = $tmp[1];
+        $dataSize = $tmp[2];
+
+        // finally, call the gzinflate() function
+        // don't pass $dataSize to gzinflate, see bugs #13135, #14370
+        $unpacked = gzinflate(substr($data, $headerLength, -8));
+        if (false === $unpacked) {
+            return PEAR::raiseError('_decodeGzip(): gzinflate() call failed', HTTP_REQUEST_ERROR_GZIP_READ);
+        } elseif ($dataSize != strlen($unpacked)) {
+            return PEAR::raiseError('_decodeGzip(): data size check failed', HTTP_REQUEST_ERROR_GZIP_READ);
+        } elseif ((0xffffffff & $dataCrc) != (0xffffffff & crc32($unpacked))) {
+            return PEAR::raiseError('_decodeGzip(): data CRC check failed', HTTP_REQUEST_ERROR_GZIP_CRC);
+        }
+        if (HTTP_REQUEST_MBSTRING) {
+            mb_internal_encoding($oldEncoding);
+        }
+        return $unpacked;
+    }
+} // End class HTTP_Response
+?>
diff --git a/extlib/HTTP/Request/Listener.php b/extlib/HTTP/Request/Listener.php
new file mode 100644
index 0000000000..b4fe444b35
--- /dev/null
+++ b/extlib/HTTP/Request/Listener.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * Listener for HTTP_Request and HTTP_Response objects
+ *
+ * PHP versions 4 and 5
+ * 
+ * LICENSE:
+ *
+ * Copyright (c) 2002-2007, Richard Heyes
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * o Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * o Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * o The names of the authors may not be used to endorse or promote
+ *   products derived from this software without specific prior written
+ *   permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category    HTTP
+ * @package     HTTP_Request
+ * @author      Alexey Borzov <avb@php.net>
+ * @copyright   2002-2007 Richard Heyes
+ * @license     http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version     CVS: $Id: Listener.php,v 1.3 2007/05/18 10:33:31 avb Exp $
+ * @link        http://pear.php.net/package/HTTP_Request/ 
+ */
+
+/**
+ * Listener for HTTP_Request and HTTP_Response objects
+ *
+ * This class implements the Observer part of a Subject-Observer
+ * design pattern.
+ *
+ * @category    HTTP
+ * @package     HTTP_Request
+ * @author      Alexey Borzov <avb@php.net>
+ * @version     Release: 1.4.4
+ */
+class HTTP_Request_Listener 
+{
+   /**
+    * A listener's identifier
+    * @var string
+    */
+    var $_id;
+
+   /**
+    * Constructor, sets the object's identifier
+    *
+    * @access public
+    */
+    function HTTP_Request_Listener()
+    {
+        $this->_id = md5(uniqid('http_request_', 1));
+    }
+
+
+   /**
+    * Returns the listener's identifier
+    *
+    * @access public
+    * @return string
+    */
+    function getId()
+    {
+        return $this->_id;
+    }
+
+
+   /**
+    * This method is called when Listener is notified of an event
+    *
+    * @access   public
+    * @param    object  an object the listener is attached to
+    * @param    string  Event name
+    * @param    mixed   Additional data
+    * @abstract
+    */
+    function update(&$subject, $event, $data = null)
+    {
+        echo "Notified of event: '$event'\n";
+        if (null !== $data) {
+            echo "Additional data: ";
+            var_dump($data);
+        }
+    }
+}
+?>
diff --git a/extlib/Net/URL2.php b/extlib/Net/URL2.php
new file mode 100644
index 0000000000..7a654aed8f
--- /dev/null
+++ b/extlib/Net/URL2.php
@@ -0,0 +1,813 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Copyright (c) 2007-2008, Christian Schmidt, Peytz & Co. A/S           |
+// | All rights reserved.                                                  |
+// |                                                                       |
+// | Redistribution and use in source and binary forms, with or without    |
+// | modification, are permitted provided that the following conditions    |
+// | are met:                                                              |
+// |                                                                       |
+// | o Redistributions of source code must retain the above copyright      |
+// |   notice, this list of conditions and the following disclaimer.       |
+// | o Redistributions in binary form must reproduce the above copyright   |
+// |   notice, this list of conditions and the following disclaimer in the |
+// |   documentation and/or other materials provided with the distribution.|
+// | o The names of the authors may not be used to endorse or promote      |
+// |   products derived from this software without specific prior written  |
+// |   permission.                                                         |
+// |                                                                       |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT  |
+// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT      |
+// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
+// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
+// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT   |
+// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
+// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  |
+// |                                                                       |
+// +-----------------------------------------------------------------------+
+// | Author: Christian Schmidt <schmidt at php dot net>                    |
+// +-----------------------------------------------------------------------+
+//
+// $Id: URL2.php,v 1.10 2008/04/26 21:57:08 schmidt Exp $
+//
+// Net_URL2 Class (PHP5 Only)
+
+// This code is released under the BSD License - http://www.opensource.org/licenses/bsd-license.php
+/**
+ * @license BSD License
+ */
+class Net_URL2
+{
+    /**
+     * Do strict parsing in resolve() (see RFC 3986, section 5.2.2). Default
+     * is true.
+     */
+    const OPTION_STRICT           = 'strict';
+
+    /**
+     * Represent arrays in query using PHP's [] notation. Default is true.
+     */
+    const OPTION_USE_BRACKETS     = 'use_brackets';
+
+    /**
+     * URL-encode query variable keys. Default is true.
+     */
+    const OPTION_ENCODE_KEYS      = 'encode_keys';
+
+    /**
+     * Query variable separators when parsing the query string. Every character
+     * is considered a separator. Default is specified by the
+     * arg_separator.input php.ini setting (this defaults to "&").
+     */
+    const OPTION_SEPARATOR_INPUT  = 'input_separator';
+
+    /**
+     * Query variable separator used when generating the query string. Default
+     * is specified by the arg_separator.output php.ini setting (this defaults
+     * to "&").
+     */
+    const OPTION_SEPARATOR_OUTPUT = 'output_separator';
+
+    /**
+     * Default options corresponds to how PHP handles $_GET.
+     */
+    private $options = array(
+        self::OPTION_STRICT           => true,
+        self::OPTION_USE_BRACKETS     => true,
+        self::OPTION_ENCODE_KEYS      => true,
+        self::OPTION_SEPARATOR_INPUT  => 'x&',
+        self::OPTION_SEPARATOR_OUTPUT => 'x&',
+        );
+
+    /**
+     * @var  string|bool
+     */
+    private $scheme = false;
+
+    /**
+     * @var  string|bool
+     */
+    private $userinfo = false;
+
+    /**
+     * @var  string|bool
+     */
+    private $host = false;
+
+    /**
+     * @var  int|bool
+     */
+    private $port = false;
+
+    /**
+     * @var  string
+     */
+    private $path = '';
+
+    /**
+     * @var  string|bool
+     */
+    private $query = false;
+
+    /**
+     * @var  string|bool
+     */
+    private $fragment = false;
+
+    /**
+     * @param string $url     an absolute or relative URL
+     * @param array  $options
+     */
+    public function __construct($url, $options = null)
+    {
+        $this->setOption(self::OPTION_SEPARATOR_INPUT,
+                         ini_get('arg_separator.input'));
+        $this->setOption(self::OPTION_SEPARATOR_OUTPUT,
+                         ini_get('arg_separator.output'));
+        if (is_array($options)) {
+            foreach ($options as $optionName => $value) {
+                $this->setOption($optionName);
+            }
+        }
+
+        if (preg_match('@^([a-z][a-z0-9.+-]*):@i', $url, $reg)) {
+            $this->scheme = $reg[1];
+            $url = substr($url, strlen($reg[0]));
+        }
+
+        if (preg_match('@^//([^/#?]+)@', $url, $reg)) {
+            $this->setAuthority($reg[1]);
+            $url = substr($url, strlen($reg[0]));
+        }
+
+        $i = strcspn($url, '?#');
+        $this->path = substr($url, 0, $i);
+        $url = substr($url, $i);
+
+        if (preg_match('@^\?([^#]*)@', $url, $reg)) {
+            $this->query = $reg[1];
+            $url = substr($url, strlen($reg[0]));
+        }
+
+        if ($url) {
+            $this->fragment = substr($url, 1);
+        }
+    }
+
+    /**
+     * Returns the scheme, e.g. "http" or "urn", or false if there is no
+     * scheme specified, i.e. if this is a relative URL.
+     *
+     * @return  string|bool
+     */
+    public function getScheme()
+    {
+        return $this->scheme;
+    }
+
+    /**
+     * @param string|bool $scheme
+     *
+     * @return void
+     * @see    getScheme()
+     */
+    public function setScheme($scheme)
+    {
+        $this->scheme = $scheme;
+    }
+
+    /**
+     * Returns the user part of the userinfo part (the part preceding the first
+     *  ":"), or false if there is no userinfo part.
+     *
+     * @return  string|bool
+     */
+    public function getUser()
+    {
+        return $this->userinfo !== false ? preg_replace('@:.*$@', '', $this->userinfo) : false;
+    }
+
+    /**
+     * Returns the password part of the userinfo part (the part after the first
+     *  ":"), or false if there is no userinfo part (i.e. the URL does not
+     * contain "@" in front of the hostname) or the userinfo part does not
+     * contain ":".
+     *
+     * @return  string|bool
+     */
+    public function getPassword()
+    {
+        return $this->userinfo !== false ? substr(strstr($this->userinfo, ':'), 1) : false;
+    }
+
+    /**
+     * Returns the userinfo part, or false if there is none, i.e. if the
+     * authority part does not contain "@".
+     *
+     * @return  string|bool
+     */
+    public function getUserinfo()
+    {
+        return $this->userinfo;
+    }
+
+    /**
+     * Sets the userinfo part. If two arguments are passed, they are combined
+     * in the userinfo part as username ":" password.
+     *
+     * @param string|bool $userinfo userinfo or username
+     * @param string|bool $password
+     *
+     * @return void
+     */
+    public function setUserinfo($userinfo, $password = false)
+    {
+        $this->userinfo = $userinfo;
+        if ($password !== false) {
+            $this->userinfo .= ':' . $password;
+        }
+    }
+
+    /**
+     * Returns the host part, or false if there is no authority part, e.g.
+     * relative URLs.
+     *
+     * @return  string|bool
+     */
+    public function getHost()
+    {
+        return $this->host;
+    }
+
+    /**
+     * @param string|bool $host
+     *
+     * @return void
+     */
+    public function setHost($host)
+    {
+        $this->host = $host;
+    }
+
+    /**
+     * Returns the port number, or false if there is no port number specified,
+     * i.e. if the default port is to be used.
+     *
+     * @return  int|bool
+     */
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    /**
+     * @param int|bool $port
+     *
+     * @return void
+     */
+    public function setPort($port)
+    {
+        $this->port = intval($port);
+    }
+
+    /**
+     * Returns the authority part, i.e. [ userinfo "@" ] host [ ":" port ], or
+     * false if there is no authority none.
+     *
+     * @return string|bool
+     */
+    public function getAuthority()
+    {
+        if (!$this->host) {
+            return false;
+        }
+
+        $authority = '';
+
+        if ($this->userinfo !== false) {
+            $authority .= $this->userinfo . '@';
+        }
+
+        $authority .= $this->host;
+
+        if ($this->port !== false) {
+            $authority .= ':' . $this->port;
+        }
+
+        return $authority;
+    }
+
+    /**
+     * @param string|false $authority
+     *
+     * @return void
+     */
+    public function setAuthority($authority)
+    {
+        $this->user = false;
+        $this->pass = false;
+        $this->host = false;
+        $this->port = false;
+        if (preg_match('@^(([^\@]+)\@)?([^:]+)(:(\d*))?$@', $authority, $reg)) {
+            if ($reg[1]) {
+                $this->userinfo = $reg[2];
+            }
+
+            $this->host = $reg[3];
+            if (isset($reg[5])) {
+                $this->port = intval($reg[5]);
+            }
+        }
+    }
+
+    /**
+     * Returns the path part (possibly an empty string).
+     *
+     * @return string
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    /**
+     * @param string $path
+     *
+     * @return void
+     */
+    public function setPath($path)
+    {
+        $this->path = $path;
+    }
+
+    /**
+     * Returns the query string (excluding the leading "?"), or false if "?"
+     * isn't present in the URL.
+     *
+     * @return  string|bool
+     * @see     self::getQueryVariables()
+     */
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    /**
+     * @param string|bool $query
+     *
+     * @return void
+     * @see   self::setQueryVariables()
+     */
+    public function setQuery($query)
+    {
+        $this->query = $query;
+    }
+
+    /**
+     * Returns the fragment name, or false if "#" isn't present in the URL.
+     *
+     * @return  string|bool
+     */
+    public function getFragment()
+    {
+        return $this->fragment;
+    }
+
+    /**
+     * @param string|bool $fragment
+     *
+     * @return void
+     */
+    public function setFragment($fragment)
+    {
+        $this->fragment = $fragment;
+    }
+
+    /**
+     * Returns the query string like an array as the variables would appear in
+     * $_GET in a PHP script.
+     *
+     * @return  array
+     */
+    public function getQueryVariables()
+    {
+        $pattern = '/[' .
+                   preg_quote($this->getOption(self::OPTION_SEPARATOR_INPUT), '/') .
+                   ']/';
+        $parts   = preg_split($pattern, $this->query, -1, PREG_SPLIT_NO_EMPTY);
+        $return  = array();
+
+        foreach ($parts as $part) {
+            if (strpos($part, '=') !== false) {
+                list($key, $value) = explode('=', $part, 2);
+            } else {
+                $key   = $part;
+                $value = null;
+            }
+
+            if ($this->getOption(self::OPTION_ENCODE_KEYS)) {
+                $key = rawurldecode($key);
+            }
+            $value = rawurldecode($value);
+
+            if ($this->getOption(self::OPTION_USE_BRACKETS) &&
+                preg_match('#^(.*)\[([0-9a-z_-]*)\]#i', $key, $matches)) {
+
+                $key = $matches[1];
+                $idx = $matches[2];
+
+                // Ensure is an array
+                if (empty($return[$key]) || !is_array($return[$key])) {
+                    $return[$key] = array();
+                }
+
+                // Add data
+                if ($idx === '') {
+                    $return[$key][] = $value;
+                } else {
+                    $return[$key][$idx] = $value;
+                }
+            } elseif (!$this->getOption(self::OPTION_USE_BRACKETS)
+                      && !empty($return[$key])
+            ) {
+                $return[$key]   = (array) $return[$key];
+                $return[$key][] = $value;
+            } else {
+                $return[$key] = $value;
+            }
+        }
+
+        return $return;
+    }
+
+    /**
+     * @param array $array (name => value) array
+     *
+     * @return void
+     */
+    public function setQueryVariables(array $array)
+    {
+        if (!$array) {
+            $this->query = false;
+        } else {
+            foreach ($array as $name => $value) {
+                if ($this->getOption(self::OPTION_ENCODE_KEYS)) {
+                    $name = rawurlencode($name);
+                }
+
+                if (is_array($value)) {
+                    foreach ($value as $k => $v) {
+                        $parts[] = $this->getOption(self::OPTION_USE_BRACKETS)
+                            ? sprintf('%s[%s]=%s', $name, $k, $v)
+                            : ($name . '=' . $v);
+                    }
+                } elseif (!is_null($value)) {
+                    $parts[] = $name . '=' . $value;
+                } else {
+                    $parts[] = $name;
+                }
+            }
+            $this->query = implode($this->getOption(self::OPTION_SEPARATOR_OUTPUT),
+                                   $parts);
+        }
+    }
+
+    /**
+     * @param string $name
+     * @param mixed  $value
+     *
+     * @return  array
+     */
+    public function setQueryVariable($name, $value)
+    {
+        $array = $this->getQueryVariables();
+        $array[$name] = $value;
+        $this->setQueryVariables($array);
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return void
+     */
+    public function unsetQueryVariable($name)
+    {
+        $array = $this->getQueryVariables();
+        unset($array[$name]);
+        $this->setQueryVariables($array);
+    }
+
+    /**
+     * Returns a string representation of this URL.
+     *
+     * @return  string
+     */
+    public function getURL()
+    {
+        // See RFC 3986, section 5.3
+        $url = "";
+
+        if ($this->scheme !== false) {
+            $url .= $this->scheme . ':';
+        }
+
+        $authority = $this->getAuthority();
+        if ($authority !== false) {
+            $url .= '//' . $authority;
+        }
+        $url .= $this->path;
+
+        if ($this->query !== false) {
+            $url .= '?' . $this->query;
+        }
+
+        if ($this->fragment !== false) {
+            $url .= '#' . $this->fragment;
+        }
+    
+        return $url;
+    }
+
+    /** 
+     * Returns a normalized string representation of this URL. This is useful
+     * for comparison of URLs.
+     *
+     * @return  string
+     */
+    public function getNormalizedURL()
+    {
+        $url = clone $this;
+        $url->normalize();
+        return $url->getUrl();
+    }
+
+    /** 
+     * Returns a normalized Net_URL2 instance.
+     *
+     * @return  Net_URL2
+     */
+    public function normalize()
+    {
+        // See RFC 3886, section 6
+
+        // Schemes are case-insensitive
+        if ($this->scheme) {
+            $this->scheme = strtolower($this->scheme);
+        }
+
+        // Hostnames are case-insensitive
+        if ($this->host) {
+            $this->host = strtolower($this->host);
+        }
+
+        // Remove default port number for known schemes (RFC 3986, section 6.2.3)
+        if ($this->port &&
+            $this->scheme &&
+            $this->port == getservbyname($this->scheme, 'tcp')) {
+
+            $this->port = false;
+        }
+
+        // Normalize case of %XX percentage-encodings (RFC 3986, section 6.2.2.1)
+        foreach (array('userinfo', 'host', 'path') as $part) {
+            if ($this->$part) {
+                $this->$part  = preg_replace('/%[0-9a-f]{2}/ie', 'strtoupper("\0")', $this->$part);
+            }
+        }
+
+        // Path segment normalization (RFC 3986, section 6.2.2.3)
+        $this->path = self::removeDotSegments($this->path);
+
+        // Scheme based normalization (RFC 3986, section 6.2.3)
+        if ($this->host && !$this->path) {
+            $this->path = '/';
+        }
+    }
+
+    /**
+     * Returns whether this instance represents an absolute URL.
+     *
+     * @return  bool
+     */
+    public function isAbsolute()
+    {
+        return (bool) $this->scheme;
+    }
+
+    /**
+     * Returns an Net_URL2 instance representing an absolute URL relative to
+     * this URL.
+     *
+     * @param Net_URL2|string $reference relative URL
+     *
+     * @return Net_URL2
+     */
+    public function resolve($reference)
+    {
+        if (is_string($reference)) {
+            $reference = new self($reference);
+        }
+        if (!$this->isAbsolute()) {
+            throw new Exception('Base-URL must be absolute');
+        }
+
+        // A non-strict parser may ignore a scheme in the reference if it is
+        // identical to the base URI's scheme.
+        if (!$this->getOption(self::OPTION_STRICT) && $reference->scheme == $this->scheme) {
+            $reference->scheme = false;
+        }
+
+        $target = new self('');
+        if ($reference->scheme !== false) {
+            $target->scheme = $reference->scheme;
+            $target->setAuthority($reference->getAuthority());
+            $target->path  = self::removeDotSegments($reference->path);
+            $target->query = $reference->query;
+        } else {
+            $authority = $reference->getAuthority();
+            if ($authority !== false) {
+                $target->setAuthority($authority);
+                $target->path  = self::removeDotSegments($reference->path);
+                $target->query = $reference->query;
+            } else {
+                if ($reference->path == '') {
+                    $target->path = $this->path;
+                    if ($reference->query !== false) {
+                        $target->query = $reference->query;
+                    } else {
+                        $target->query = $this->query;
+                    }
+                } else {
+                    if (substr($reference->path, 0, 1) == '/') {
+                        $target->path = self::removeDotSegments($reference->path);
+                    } else {
+                        // Merge paths (RFC 3986, section 5.2.3)
+                        if ($this->host !== false && $this->path == '') {
+                            $target->path = '/' . $this->path;
+                        } else {
+                            $i = strrpos($this->path, '/');
+                            if ($i !== false) {
+                                $target->path = substr($this->path, 0, $i + 1);
+                            }
+                            $target->path .= $reference->path;
+                        }
+                        $target->path = self::removeDotSegments($target->path);
+                    }
+                    $target->query = $reference->query;
+                }
+                $target->setAuthority($this->getAuthority());
+            }
+            $target->scheme = $this->scheme;
+        }
+
+        $target->fragment = $reference->fragment;
+
+        return $target;
+    }
+
+    /**
+     * Removes dots as described in RFC 3986, section 5.2.4, e.g.
+     * "/foo/../bar/baz" => "/bar/baz"
+     *
+     * @param string $path a path
+     *
+     * @return string a path
+     */
+    private static function removeDotSegments($path)
+    {
+        $output = '';
+
+        // Make sure not to be trapped in an infinite loop due to a bug in this
+        // method
+        $j = 0; 
+        while ($path && $j++ < 100) {
+            // Step A
+            if (substr($path, 0, 2) == './') {
+                $path = substr($path, 2);
+            } elseif (substr($path, 0, 3) == '../') {
+                $path = substr($path, 3);
+
+            // Step B
+            } elseif (substr($path, 0, 3) == '/./' || $path == '/.') {
+                $path = '/' . substr($path, 3);
+
+            // Step C
+            } elseif (substr($path, 0, 4) == '/../' || $path == '/..') {
+                $path = '/' . substr($path, 4);
+                $i = strrpos($output, '/');
+                $output = $i === false ? '' : substr($output, 0, $i);
+
+            // Step D
+            } elseif ($path == '.' || $path == '..') {
+                $path = '';
+
+            // Step E
+            } else {
+                $i = strpos($path, '/');
+                if ($i === 0) {
+                    $i = strpos($path, '/', 1);
+                }
+                if ($i === false) {
+                    $i = strlen($path);
+                }
+                $output .= substr($path, 0, $i);
+                $path = substr($path, $i);
+            }
+        }
+
+        return $output;
+    }
+
+    /**
+     * Returns a Net_URL2 instance representing the canonical URL of the
+     * currently executing PHP script.
+     * 
+     * @return  string
+     */
+    public static function getCanonical()
+    {
+        if (!isset($_SERVER['REQUEST_METHOD'])) {
+            // ALERT - no current URL
+            throw new Exception('Script was not called through a webserver');
+        }
+
+        // Begin with a relative URL
+        $url = new self($_SERVER['PHP_SELF']);
+        $url->scheme = isset($_SERVER['HTTPS']) ? 'https' : 'http';
+        $url->host = $_SERVER['SERVER_NAME'];
+        $port = intval($_SERVER['SERVER_PORT']);
+        if ($url->scheme == 'http' && $port != 80 ||
+            $url->scheme == 'https' && $port != 443) {
+
+            $url->port = $port;
+        }
+        return $url;
+    }
+
+    /**
+     * Returns the URL used to retrieve the current request.
+     *
+     * @return  string
+     */
+    public static function getRequestedURL()
+    {
+        return self::getRequested()->getUrl();
+    }
+
+    /**
+     * Returns a Net_URL2 instance representing the URL used to retrieve the
+     * current request.
+     *
+     * @return  Net_URL2
+     */
+    public static function getRequested()
+    {
+        if (!isset($_SERVER['REQUEST_METHOD'])) {
+            // ALERT - no current URL
+            throw new Exception('Script was not called through a webserver');
+        }
+
+        // Begin with a relative URL
+        $url = new self($_SERVER['REQUEST_URI']);
+        $url->scheme = isset($_SERVER['HTTPS']) ? 'https' : 'http';
+        // Set host and possibly port
+        $url->setAuthority($_SERVER['HTTP_HOST']);
+        return $url;
+    }
+
+    /**
+     * Sets the specified option.
+     *
+     * @param string $optionName a self::OPTION_ constant
+     * @param mixed  $value      option value  
+     *
+     * @return void
+     * @see  self::OPTION_STRICT
+     * @see  self::OPTION_USE_BRACKETS
+     * @see  self::OPTION_ENCODE_KEYS
+     */
+    function setOption($optionName, $value)
+    {
+        if (!array_key_exists($optionName, $this->options)) {
+            return false;
+        }
+        $this->options[$optionName] = $value;
+    }
+
+    /**
+     * Returns the value of the specified option.
+     *
+     * @param string $optionName The name of the option to retrieve
+     *
+     * @return  mixed
+     */
+    function getOption($optionName)
+    {
+        return isset($this->options[$optionName])
+            ? $this->options[$optionName] : false;
+    }
+}
diff --git a/extlib/Services/oEmbed.php b/extlib/Services/oEmbed.php
new file mode 100644
index 0000000000..5d38ed883d
--- /dev/null
+++ b/extlib/Services/oEmbed.php
@@ -0,0 +1,357 @@
+<?php
+
+/**
+ * An interface for oEmbed consumption
+ *
+ * PHP version 5.1.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Validate.php';
+require_once 'Net/URL2.php';
+require_once 'HTTP/Request.php';
+require_once 'Services/oEmbed/Exception.php';
+require_once 'Services/oEmbed/Exception/NoSupport.php';
+require_once 'Services/oEmbed/Object.php';
+
+/**
+ * Base class for consuming oEmbed objects
+ *
+ * <code>
+ * <?php
+ * 
+ * require_once 'Services/oEmbed.php';
+ *
+ * // The URL that we'd like to find out more information about.
+ * $url = 'http://flickr.com/photos/joestump/2848795611/';
+ *
+ * // The oEmbed API URI. Not all providers support discovery yet so we're
+ * // explicitly providing one here. If one is not provided Services_oEmbed
+ * // attempts to discover it. If none is found an exception is thrown.
+ * $oEmbed = new Services_oEmbed($url, array(
+ *     Services_oEmbed::OPTION_API => 'http://www.flickr.com/services/oembed/'
+ * ));
+ * $object = $oEmbed->getObject();
+ *
+ * // All of the objects have somewhat sane __toString() methods that allow
+ * // you to output them directly.
+ * echo (string)$object;
+ * 
+ * ?>
+ * </code> 
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed
+{
+    /**
+     * HTTP timeout in seconds
+     * 
+     * All HTTP requests made by Services_oEmbed will respect this timeout. 
+     * This can be passed to {@link Services_oEmbed::setOption()} or to the
+     * options parameter in {@link Services_oEmbed::__construct()}.
+     * 
+     * @var string OPTION_TIMEOUT Timeout in seconds 
+     */
+    const OPTION_TIMEOUT = 'http_timeout';
+
+    /**
+     * HTTP User-Agent 
+     *
+     * All HTTP requests made by Services_oEmbed will be sent with the 
+     * string set by this option.
+     *
+     * @var string OPTION_USER_AGENT The HTTP User-Agent string
+     */
+    const OPTION_USER_AGENT = 'http_user_agent';
+
+    /**
+     * The API's URI
+     *
+     * If the API is known ahead of time this option can be used to explicitly
+     * set it. If not present then the API is attempted to be discovered 
+     * through the auto-discovery mechanism.
+     *
+     * @var string OPTION_API
+     */
+    const OPTION_API = 'oembed_api';
+
+    /**
+     * Options for oEmbed requests
+     *
+     * @var array $options The options for making requests
+     */
+    protected $options = array(
+        self::OPTION_TIMEOUT    => 3,
+        self::OPTION_API        => null,
+        self::OPTION_USER_AGENT => 'Services_oEmbed 0.1.0'
+    );
+
+    /**
+     * URL of object to get embed information for
+     *
+     * @var object $url {@link Net_URL2} instance of URL of object
+     */
+    protected $url = null;
+
+    /**
+     * Constructor
+     *
+     * @param string $url     The URL to fetch an oEmbed for
+     * @param array  $options A list of options for the oEmbed lookup
+     *
+     * @throws {@link Services_oEmbed_Exception} if the $url is invalid
+     * @throws {@link Services_oEmbed_Exception} when no valid API is found
+     * @return void
+     */
+    public function __construct($url, array $options = array())
+    {
+        if (Validate::uri($url)) {
+            $this->url = new Net_URL2($url);
+        } else {
+            throw new Services_oEmbed_Exception('URL is invalid');
+        }
+
+        if (count($options)) {
+            foreach ($options as $key => $val) {
+                $this->setOption($key, $val);
+            }
+        }
+
+        if ($this->options[self::OPTION_API] === null) {
+            $this->options[self::OPTION_API] = $this->discover();
+        } 
+    }
+
+    /**
+     * Set an option for the oEmbed request
+     * 
+     * @param mixed $option The option name
+     * @param mixed $value  The option value
+     *
+     * @see Services_oEmbed::OPTION_API, Services_oEmbed::OPTION_TIMEOUT
+     * @throws {@link Services_oEmbed_Exception} on invalid option
+     * @access public
+     * @return void
+     */
+    public function setOption($option, $value)
+    {
+        switch ($option) {
+        case self::OPTION_API:
+        case self::OPTION_TIMEOUT:
+            break;
+        default:
+            throw new Services_oEmbed_Exception(
+                'Invalid option "' . $option . '"'
+            );
+        }
+
+        $func = '_set_' . $option;
+        if (method_exists($this, $func)) {
+            $this->options[$option] = $this->$func($value);
+        } else {
+            $this->options[$option] = $value;
+        }
+    }
+
+    /**
+     * Set the API option
+     * 
+     * @param string $value The API's URI
+     *
+     * @throws {@link Services_oEmbed_Exception} on invalid API URI
+     * @see Validate::uri()
+     * @return string
+     */
+    protected function _set_oembed_api($value)
+    {
+        if (!Validate::uri($value)) {
+            throw new Services_oEmbed_Exception(
+                'API URI provided is invalid'
+            );
+        }
+
+        return $value;
+    }
+
+    /**
+     * Get the oEmbed response
+     *
+     * @param array $params Optional parameters for 
+     * 
+     * @throws {@link Services_oEmbed_Exception} on cURL errors
+     * @throws {@link Services_oEmbed_Exception} on HTTP errors
+     * @throws {@link Services_oEmbed_Exception} when result is not parsable 
+     * @return object The oEmbed response as an object
+     */
+    public function getObject(array $params = array())
+    {
+        $params['url'] = $this->url->getURL();
+        if (!isset($params['format'])) {
+            $params['format'] = 'json';
+        }
+
+        $sets = array();
+        foreach ($params as $var => $val) {
+            $sets[] = $var . '=' . urlencode($val);
+        }
+
+        $url = $this->options[self::OPTION_API] . '?' . implode('&', $sets);
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_HEADER, false);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->options[self::OPTION_TIMEOUT]);
+        $result = curl_exec($ch);
+
+        if (curl_errno($ch)) {
+            throw new Services_oEmbed_Exception(
+                curl_error($ch), curl_errno($ch)
+            );
+        }
+
+        $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        if (substr($code, 0, 1) != '2') {
+            throw new Services_oEmbed_Exception('Non-200 code returned');
+        }
+
+        curl_close($ch);
+
+        switch ($params['format']) {
+        case 'json':
+            $res = json_decode($result);
+            if (!is_object($res)) {
+                throw new Services_oEmbed_Exception(
+                    'Could not parse JSON response'
+                );
+            }
+            break;
+        case 'xml':
+            libxml_use_internal_errors(true);
+            $res = simplexml_load_string($result);
+            if (!$res instanceof SimpleXMLElement) {
+                $errors = libxml_get_errors();
+                $err    = array_shift($errors);
+                libxml_clear_errors();
+                libxml_use_internal_errors(false);
+                throw new Services_oEmbed_Exception(
+                    $err->message, $error->code
+                );
+            }
+            break;
+        }
+
+        return Services_oEmbed_Object::factory($res);
+    }
+
+    /**
+     * Discover an oEmbed API 
+     *
+     * @param string $url The URL to attempt to discover oEmbed for
+     *
+     * @throws {@link Services_oEmbed_Exception} if the $url is invalid
+     * @return string The oEmbed API endpoint discovered
+     */
+    protected function discover($url)
+    {
+        $body = $this->sendRequest($url);
+
+        // Find all <link /> tags that have a valid oembed type set. We then
+        // extract the href attribute for each type.
+        $regexp = '#<link([^>]*)type="' . 
+                  '(application/json|text/xml)\+oembed"([^>]*)>#i';
+
+        $m = $ret = array();
+        if (!preg_match_all($regexp, $body, $m)) {
+            throw new Services_oEmbed_Exception_NoSupport(
+                'No valid oEmbed links found on page'
+            );
+        }
+
+        foreach ($m[0] as $i => $link) {
+            $h = array();
+            if (preg_match('/href="([^"]+)"/i', $link, $h)) {
+                $ret[$m[2][$i]] = $h[1];
+            }
+        } 
+
+        return (isset($ret['json']) ? $ret['json'] : array_pop($ret));
+    }
+
+    /**
+     * Send a GET request to the provider
+     * 
+     * @param mixed $url The URL to send the request to
+     *
+     * @throws {@link Services_oEmbed_Exception} on HTTP errors
+     * @return string The contents of the response
+     */
+    private function sendRequest($url)
+    {
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_HEADER, false);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->options[self::OPTION_TIMEOUT]);
+        curl_setopt($ch, CURLOPT_USERAGENT, $this->options[self::OPTION_USER_AGENT]);
+        $result = curl_exec($ch);
+        if (curl_errno($ch)) {
+            throw new Services_oEmbed_Exception(
+                curl_error($ch), curl_errno($ch)
+            );
+        }
+
+        $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        if (substr($code, 0, 1) != '2') {
+            throw new Services_oEmbed_Exception('Non-200 code returned');
+        }
+
+        return $result;
+    }
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Exception.php b/extlib/Services/oEmbed/Exception.php
new file mode 100644
index 0000000000..446ac2a706
--- /dev/null
+++ b/extlib/Services/oEmbed/Exception.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * Base exception class for {@link Services_oEmbed}
+ *
+ * PHP version 5.1.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'PEAR/Exception.php';
+
+/**
+ * Base exception class for {@link Services_oEmbed}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Exception extends PEAR_Exception
+{
+
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Exception/NoSupport.php b/extlib/Services/oEmbed/Exception/NoSupport.php
new file mode 100644
index 0000000000..384c7191f2
--- /dev/null
+++ b/extlib/Services/oEmbed/Exception/NoSupport.php
@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * Exception class when no oEmbed support is discovered
+ *
+ * PHP version 5.2.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+/**
+ * Exception class when no oEmbed support is discovered
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Exception_NoSupport extends Services_oEmbed_Exception
+{
+    
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object.php b/extlib/Services/oEmbed/Object.php
new file mode 100644
index 0000000000..9eedd7efb6
--- /dev/null
+++ b/extlib/Services/oEmbed/Object.php
@@ -0,0 +1,126 @@
+<?php
+
+/**
+ * An interface for oEmbed consumption
+ *
+ * PHP version 5.1.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Object/Exception.php';
+
+/**
+ * Base class for consuming oEmbed objects
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+abstract class Services_oEmbed_Object 
+{
+    
+    /**
+     * Valid oEmbed object types
+     *
+     * @var array $types Array of valid object types
+     * @see Services_oEmbed_Object::factory()
+     */
+    static protected $types = array(
+        'photo' => 'Photo',
+        'video' => 'Video',
+        'link'  => 'Link',
+        'rich'  => 'Rich'
+    );
+
+    /**
+     * Create an oEmbed object from result
+     *
+     * @param object $object Raw object returned from API
+     *
+     * @throws {@link Services_oEmbed_Object_Exception} on object error
+     * @return object Instance of object driver
+     * @see Services_oEmbed_Object_Link, Services_oEmbed_Object_Photo
+     * @see Services_oEmbed_Object_Rich, Services_oEmbed_Object_Video
+     */
+    static public function factory($object)
+    {
+        if (!isset($object->type)) {
+            throw new Services_oEmbed_Object_Exception(
+                'Object has no type'
+            );
+        }
+
+        $type = (string)$object->type;
+        if (!isset(self::$types[$type])) {
+            throw new Services_oEmbed_Object_Exception(
+                'Object type is unknown or invalid: ' . $type
+            );
+        }
+
+        $file = 'Services/oEmbed/Object/' . self::$types[$type] . '.php';
+        include_once $file;
+
+        $class = 'Services_oEmbed_Object_' . self::$types[$type];
+        if (!class_exists($class)) {
+            throw new Services_oEmbed_Object_Exception(
+                'Object class is invalid or not present'
+            );
+        }
+
+        $instance = new $class($object);
+        return $instance;
+    }
+
+    /**
+     * Instantiation is not allowed
+     *
+     * @return void
+     */
+    private function __construct()
+    {
+    
+    }
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Common.php b/extlib/Services/oEmbed/Object/Common.php
new file mode 100644
index 0000000000..f568ec89f5
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Common.php
@@ -0,0 +1,139 @@
+<?php
+
+/**
+ * Base class for oEmbed objects
+ *
+ * PHP version 5.1.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+/**
+ * Base class for oEmbed objects
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+abstract class Services_oEmbed_Object_Common
+{
+    /**
+     * Raw object returned from API
+     *
+     * @var object $object The raw object from the API
+     */
+    protected $object = null;
+
+    /**
+     * Required fields per the specification
+     *
+     * @var array $required Array of required fields
+     * @link http://oembed.com
+     */
+    protected $required = array();
+
+    /**
+     * Constructor
+     *
+     * @param object $object Raw object returned from the API
+     *
+     * @throws {@link Services_oEmbed_Object_Exception} on missing fields
+     * @return void
+     */
+    public function __construct($object)
+    {
+        $this->object = $object;
+
+        $this->required[] = 'version';
+        foreach ($this->required as $field) {
+            if (!isset($this->$field)) {
+                throw new Services_oEmbed_Object_Exception(
+                    'Object is missing required ' . $field . ' attribute'
+                );
+            }
+        }
+    }
+
+    /**
+     * Get object variable
+     *
+     * @param string $var Variable to get
+     *
+     * @see Services_oEmbed_Object_Common::$object
+     * @return mixed Attribute's value or null if it's not set/exists
+     */
+    public function __get($var)
+    {
+        if (property_exists($this->object, $var)) {
+            return $this->object->$var;
+        }
+
+        return null;
+    }
+
+    /**
+     * Is variable set?
+     *
+     * @param string $var Variable name to check
+     * 
+     * @return boolean True if set, false if not
+     * @see Services_oEmbed_Object_Common::$object
+     */
+    public function __isset($var)
+    {
+        if (property_exists($this->object, $var)) {
+            return (isset($this->object->$var));
+        }
+
+        return false;
+    }
+
+    /**
+     * Require a sane __toString for all objects
+     *
+     * @return string
+     */
+    abstract public function __toString();
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Exception.php b/extlib/Services/oEmbed/Object/Exception.php
new file mode 100644
index 0000000000..6025ffd494
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Exception.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * Exception for {@link Services_oEmbed_Object}
+ *
+ * PHP version 5.1.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Exception.php';
+
+/**
+ * Exception for {@link Services_oEmbed_Object}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Object_Exception extends Services_oEmbed_Exception
+{
+
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Link.php b/extlib/Services/oEmbed/Object/Link.php
new file mode 100644
index 0000000000..9b627a89ac
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Link.php
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * Link object for {@link Services_oEmbed}
+ *
+ * PHP version 5.2.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Object/Common.php';
+
+/**
+ * Link object for {@link Services_oEmbed}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Object_Link extends Services_oEmbed_Object_Common
+{
+    /**
+     * Output a sane link
+     *
+     * @return string An HTML link of the object
+     */
+    public function __toString()
+    {
+        return '<a href="' . $this->url . '">' . $this->title . '</a>';
+    }
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Photo.php b/extlib/Services/oEmbed/Object/Photo.php
new file mode 100644
index 0000000000..5fbf4292fa
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Photo.php
@@ -0,0 +1,89 @@
+<?php
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ *
+ * PHP version 5.2.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Object/Common.php';
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Object_Photo extends Services_oEmbed_Object_Common
+{
+    /**
+     * Required fields for photo objects
+     *
+     * @var array $required Required fields
+     */
+    protected $required = array(
+        'url', 'width', 'height'
+    );
+ 
+    /**
+     * Output a valid HTML tag for image
+     *
+     * @return string HTML <img /> tag for Photo
+     */
+    public function __toString()
+    {
+        $img = '<img src="' . $this->url . '" width="' . $this->width . '" ' .
+               'height="' . $this->height . '"';
+
+        if (isset($this->title)) {
+            $img .= ' alt="' . $this->title . '"';
+        }
+
+        return $img . ' />';
+    }
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Rich.php b/extlib/Services/oEmbed/Object/Rich.php
new file mode 100644
index 0000000000..dbf6933ac7
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Rich.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ *
+ * PHP version 5.2.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Object/Common.php';
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Object_Rich extends Services_oEmbed_Object_Common
+{
+    /**
+     * Required fields for rich objects
+     *
+     * @var array $required Required fields
+     */
+    protected $required = array(
+        'html', 'width', 'height'
+    );
+ 
+    /**
+     * Output a the HTML tag for rich object
+     *
+     * @return string HTML for rich object
+     */
+    public function __toString()
+    {
+        return $this->html;        
+    }
+}
+
+?>
diff --git a/extlib/Services/oEmbed/Object/Video.php b/extlib/Services/oEmbed/Object/Video.php
new file mode 100644
index 0000000000..7461081151
--- /dev/null
+++ b/extlib/Services/oEmbed/Object/Video.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ *
+ * PHP version 5.2.0+
+ *
+ * Copyright (c) 2008, Digg.com, Inc.
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  - Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  - Neither the name of Digg.com, Inc. nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   SVN: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+
+require_once 'Services/oEmbed/Object/Common.php';
+
+/**
+ * Photo object for {@link Services_oEmbed}
+ * 
+ * @category  Services
+ * @package   Services_oEmbed
+ * @author    Joe Stump <joe@joestump.net> 
+ * @copyright 2008 Digg.com, Inc.
+ * @license   http://tinyurl.com/42zef New BSD License
+ * @version   Release: @version@
+ * @link      http://code.google.com/p/digg
+ * @link      http://oembed.com
+ */
+class Services_oEmbed_Object_Video extends Services_oEmbed_Object_Common
+{
+    /**
+     * Required fields for video objects
+     *
+     * @var array $required Required fields
+     */
+    protected $required = array(
+        'html', 'width', 'height'
+    );
+ 
+    /**
+     * Output a valid embed tag for video
+     *
+     * @return string HTML for video
+     */
+    public function __toString()
+    {
+        return $this->html;        
+    }
+}
+
+?>
diff --git a/extlib/Validate.php b/extlib/Validate.php
index 4c05506b3d..3d8bc23f21 100644
--- a/extlib/Validate.php
+++ b/extlib/Validate.php
@@ -1,1051 +1,1116 @@
-<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4: */
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2006 Pierre-Alain Joye,Tomas V.V.Cox, Amir Saied  |
-// +----------------------------------------------------------------------+
-// | This source file is subject to the New BSD license, That is bundled  |
-// | with this package in the file LICENSE, and is available through      |
-// | the world-wide-web at                                                |
-// | http://www.opensource.org/licenses/bsd-license.php                   |
-// | If you did not receive a copy of the new BSDlicense and are unable   |
-// | to obtain it through the world-wide-web, please send a note to       |
-// | pajoye@php.net so we can mail you a copy immediately.                |
-// +----------------------------------------------------------------------+
-// | Author: Tomas V.V.Cox  <cox@idecnet.com>                             |
-// |         Pierre-Alain Joye <pajoye@php.net>                           |
-// |         Amir Mohammad Saied <amir@php.net>                           |
-// +----------------------------------------------------------------------+
-//
-/**
- * Validation class
- *
- * Package to validate various datas. It includes :
- *   - numbers (min/max, decimal or not)
- *   - email (syntax, domain check)
- *   - string (predifined type alpha upper and/or lowercase, numeric,...)
- *   - date (min, max, rfc822 compliant)
- *   - uri (RFC2396)
- *   - possibility valid multiple data with a single method call (::multiple)
- *
- * @category   Validate
- * @package    Validate
- * @author     Tomas V.V.Cox <cox@idecnet.com>
- * @author     Pierre-Alain Joye <pajoye@php.net>
- * @author     Amir Mohammad Saied <amir@php.net>
- * @copyright  1997-2006 Pierre-Alain Joye,Tomas V.V.Cox,Amir Mohammad Saied
- * @license    http://www.opensource.org/licenses/bsd-license.php  New BSD License
- * @version    CVS: $Id: Validate.php,v 1.123 2007/12/12 16:45:51 davidc Exp $
- * @link       http://pear.php.net/package/Validate
- */
-
-/**
- * Methods for common data validations
- */
-define('VALIDATE_NUM',          '0-9');
-define('VALIDATE_SPACE',        '\s');
-define('VALIDATE_ALPHA_LOWER',  'a-z');
-define('VALIDATE_ALPHA_UPPER',  'A-Z');
-define('VALIDATE_ALPHA',        VALIDATE_ALPHA_LOWER . VALIDATE_ALPHA_UPPER);
-define('VALIDATE_EALPHA_LOWER', VALIDATE_ALPHA_LOWER . 'áéíóúýàèìòùäëïöüÿâêîôûãñõ¨åæç½ðøþß');
-define('VALIDATE_EALPHA_UPPER', VALIDATE_ALPHA_UPPER . 'ÁÉÍÓÚÝÀÈÌÒÙÄËÏÖܾÂÊÎÔÛÃÑÕ¦ÅÆǼÐØÞ');
-define('VALIDATE_EALPHA',       VALIDATE_EALPHA_LOWER . VALIDATE_EALPHA_UPPER);
-define('VALIDATE_PUNCTUATION',  VALIDATE_SPACE . '\.,;\:&"\'\?\!\(\)');
-define('VALIDATE_NAME',         VALIDATE_EALPHA . VALIDATE_SPACE . "'" . "-");
-define('VALIDATE_STREET',       VALIDATE_NUM . VALIDATE_NAME . "/\\ºª\.");
-
-define('VALIDATE_ITLD_EMAILS',  1);
-define('VALIDATE_GTLD_EMAILS',  2);
-define('VALIDATE_CCTLD_EMAILS', 4);
-define('VALIDATE_ALL_EMAILS',   8);
-
-/**
- * Validation class
- *
- * Package to validate various datas. It includes :
- *   - numbers (min/max, decimal or not)
- *   - email (syntax, domain check)
- *   - string (predifined type alpha upper and/or lowercase, numeric,...)
- *   - date (min, max)
- *   - uri (RFC2396)
- *   - possibility valid multiple data with a single method call (::multiple)
- *
- * @category   Validate
- * @package    Validate
- * @author     Tomas V.V.Cox <cox@idecnet.com>
- * @author     Pierre-Alain Joye <pajoye@php.net>
- * @author     Amir Mohammad Saied <amir@php.net>
- * @copyright  1997-2006 Pierre-Alain Joye,Tomas V.V.Cox,Amir Mohammad Saied
- * @license    http://www.opensource.org/licenses/bsd-license.php  New BSD License
- * @version    Release: @package_version@
- * @link       http://pear.php.net/package/Validate
- */
-class Validate
-{
-    /**
-     * International Top-Level Domain
-     *
-     * This is an array of the known international
-     * top-level domain names.
-     *
-     * @access protected
-     * @var    array     $_iTld (International top-level domains)
-     */
-    var $_itld = array(
-        'arpa',
-        'root',
-    );
-
-    /**
-     * Generic top-level domain
-     *
-     * This is an array of the official
-     * generic top-level domains.
-     *
-     * @access protected
-     * @var    array     $_gTld (Generic top-level domains)
-     */
-    var $_gtld = array(
-        'aero',
-        'biz',
-        'cat',
-        'com',
-        'coop',
-        'edu',
-        'gov',
-        'info',
-        'int',
-        'jobs',
-        'mil',
-        'mobi',
-        'museum',
-        'name',
-        'net',
-        'org',
-        'pro',
-        'travel',
-        'asia',
-        'post',
-        'tel',
-        'geo',
-    );
-
-    /**
-     * Country code top-level domains
-     *
-     * This is an array of the official country
-     * codes top-level domains
-     *
-     * @access protected
-     * @var    array     $_ccTld (Country Code Top-Level Domain)
-     */
-    var $_cctld = array(
-        'ac',
-        'ad','ae','af','ag',
-        'ai','al','am','an',
-        'ao','aq','ar','as',
-        'at','au','aw','ax',
-        'az','ba','bb','bd',
-        'be','bf','bg','bh',
-        'bi','bj','bm','bn',
-        'bo','br','bs','bt',
-        'bu','bv','bw','by',
-        'bz','ca','cc','cd',
-        'cf','cg','ch','ci',
-        'ck','cl','cm','cn',
-        'co','cr','cs','cu',
-        'cv','cx','cy','cz',
-        'de','dj','dk','dm',
-        'do','dz','ec','ee',
-        'eg','eh','er','es',
-        'et','eu','fi','fj',
-        'fk','fm','fo','fr',
-        'ga','gb','gd','ge',
-        'gf','gg','gh','gi',
-        'gl','gm','gn','gp',
-        'gq','gr','gs','gt',
-        'gu','gw','gy','hk',
-        'hm','hn','hr','ht',
-        'hu','id','ie','il',
-        'im','in','io','iq',
-        'ir','is','it','je',
-        'jm','jo','jp','ke',
-        'kg','kh','ki','km',
-        'kn','kp','kr','kw',
-        'ky','kz','la','lb',
-        'lc','li','lk','lr',
-        'ls','lt','lu','lv',
-        'ly','ma','mc','md',
-        'me','mg','mh','mk',
-        'ml','mm','mn','mo',
-        'mp','mq','mr','ms',
-        'mt','mu','mv','mw',
-        'mx','my','mz','na',
-        'nc','ne','nf','ng',
-        'ni','nl','no','np',
-        'nr','nu','nz','om',
-        'pa','pe','pf','pg',
-        'ph','pk','pl','pm',
-        'pn','pr','ps','pt',
-        'pw','py','qa','re',
-        'ro','rs','ru','rw',
-        'sa','sb','sc','sd',
-        'se','sg','sh','si',
-        'sj','sk','sl','sm',
-        'sn','so','sr','st',
-        'su','sv','sy','sz',
-        'tc','td','tf','tg',
-        'th','tj','tk','tl',
-        'tm','tn','to','tp',
-        'tr','tt','tv','tw',
-        'tz','ua','ug','uk',
-        'us','uy','uz','va',
-        'vc','ve','vg','vi',
-        'vn','vu','wf','ws',
-        'ye','yt','yu','za',
-        'zm','zw',
-    );
-
-
-    /**
-     * Validate a number
-     *
-     * @param string    $number     Number to validate
-     * @param array     $options    array where:
-     *                              'decimal'   is the decimal char or false when decimal not allowed
-     *                                          i.e. ',.' to allow both ',' and '.'
-     *                              'dec_prec'  Number of allowed decimals
-     *                              'min'       minimum value
-     *                              'max'       maximum value
-     *
-     * @return boolean true if valid number, false if not
-     *
-     * @access public
-     */
-    function number($number, $options = array())
-    {
-        $decimal = $dec_prec = $min = $max = null;
-        if (is_array($options)) {
-            extract($options);
-        }
-
-        $dec_prec   = $dec_prec ? "{1,$dec_prec}" : '+';
-        $dec_regex  = $decimal  ? "[$decimal][0-9]$dec_prec" : '';
-
-        if (!preg_match("|^[-+]?\s*[0-9]+($dec_regex)?\$|", $number)) {
-            return false;
-        }
-
-        if ($decimal != '.') {
-            $number = strtr($number, $decimal, '.');
-        }
-
-        $number = (float)str_replace(' ', '', $number);
-        if ($min !== null && $min > $number) {
-            return false;
-        }
-
-        if ($max !== null && $max < $number) {
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Converting a string to UTF-7 (RFC 2152)
-     *
-     * @param   $string     string to be converted
-     *
-     * @return  string  converted string
-     *
-     * @access  private
-     */
-    function __stringToUtf7($string) {
-        $return = '';
-        $utf7 = array(
-                        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
-                        'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
-                        'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
-                        'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
-                        's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2',
-                        '3', '4', '5', '6', '7', '8', '9', '+', ','
-                    );
-
-        $state = 0;
-        if (!empty($string)) {
-            $i = 0;
-            while ($i <= strlen($string)) {
-                $char = substr($string, $i, 1);
-                if ($state == 0) {
-                    if ((ord($char) >= 0x7F) || (ord($char) <= 0x1F)) {
-                        if ($char) {
-                            $return .= '&';
-                        }
-                        $state = 1;
-                    } elseif ($char == '&') {
-                        $return .= '&-';
-                    } else {
-                        $return .= $char;
-                    }
-                } elseif (($i == strlen($string) ||
-                            !((ord($char) >= 0x7F)) || (ord($char) <= 0x1F))) {
-                    if ($state != 1) {
-                        if (ord($char) > 64) {
-                            $return .= '';
-                        } else {
-                            $return .= $utf7[ord($char)];
-                        }
-                    }
-                    $return .= '-';
-                    $state = 0;
-                } else {
-                    switch($state) {
-                        case 1:
-                            $return .= $utf7[ord($char) >> 2];
-                            $residue = (ord($char) & 0x03) << 4;
-                            $state = 2;
-                            break;
-                        case 2:
-                            $return .= $utf7[$residue | (ord($char) >> 4)];
-                            $residue = (ord($char) & 0x0F) << 2;
-                            $state = 3;
-                            break;
-                        case 3:
-                            $return .= $utf7[$residue | (ord($char) >> 6)];
-                            $return .= $utf7[ord($char) & 0x3F];
-                            $state = 1;
-                            break;
-                    }
-                }
-                $i++;
-            }
-            return $return;
-        }
-        return '';
-    }
-
-    /**
-     * Validate an email according to full RFC822 (inclusive human readable part)
-     *
-     * @param string $email email to validate,
-     *                      will return the address for optional dns validation
-     * @param array $options email() options
-     *
-     * @return boolean true if valid email, false if not
-     *
-     * @access private
-     */
-    function __emailRFC822(&$email, &$options)
-    {
-        if (Validate::__stringToUtf7($email) != $email) {
-            return false;
-        }
-        static $address = null;
-        static $uncomment = null;
-        if (!$address) {
-            // atom        =  1*<any CHAR except specials, SPACE and CTLs>
-            $atom = '[^][()<>@,;:\\".\s\000-\037\177-\377]+\s*';
-            // qtext       =  <any CHAR excepting <">,     ; => may be folded
-            //         "\" & CR, and including linear-white-space>
-            $qtext = '[^"\\\\\r]';
-            // quoted-pair =  "\" CHAR                     ; may quote any char
-            $quoted_pair = '\\\\.';
-            // quoted-string = <"> *(qtext/quoted-pair) <">; Regular qtext or
-            //                                             ;   quoted chars.
-            $quoted_string = '"(?:' . $qtext . '|' . $quoted_pair . ')*"\s*';
-            // word        =  atom / quoted-string
-            $word = '(?:' . $atom . '|' . $quoted_string . ')';
-            // local-part  =  word *("." word)             ; uninterpreted
-            //                                             ; case-preserved
-            $local_part = $word . '(?:\.\s*' . $word . ')*';
-            // dtext       =  <any CHAR excluding "[",     ; => may be folded
-            //         "]", "\" & CR, & including linear-white-space>
-            $dtext = '[^][\\\\\r]';
-            // domain-literal =  "[" *(dtext / quoted-pair) "]"
-            $domain_literal = '\[(?:' . $dtext . '|' . $quoted_pair . ')*\]\s*';
-            // sub-domain  =  domain-ref / domain-literal
-            // domain-ref  =  atom                         ; symbolic reference
-            $sub_domain = '(?:' . $atom . '|' . $domain_literal . ')';
-            // domain      =  sub-domain *("." sub-domain)
-            $domain = $sub_domain . '(?:\.\s*' . $sub_domain . ')*';
-            // addr-spec   =  local-part "@" domain        ; global address
-            $addr_spec = $local_part . '@\s*' . $domain;
-            // route       =  1#("@" domain) ":"           ; path-relative
-            $route = '@' . $domain . '(?:,@\s*' . $domain . ')*:\s*';
-            // route-addr  =  "<" [route] addr-spec ">"
-            $route_addr = '<\s*(?:' . $route . ')?' . $addr_spec . '>\s*';
-            // phrase      =  1*word                       ; Sequence of words
-            $phrase = $word  . '+';
-            // mailbox     =  addr-spec                    ; simple address
-            //             /  phrase route-addr            ; name & addr-spec
-            $mailbox = '(?:' . $addr_spec . '|' . $phrase . $route_addr . ')';
-            // group       =  phrase ":" [#mailbox] ";"
-            $group = $phrase . ':\s*(?:' . $mailbox . '(?:,\s*' . $mailbox . ')*)?;\s*';
-            //     address     =  mailbox                      ; one addressee
-            //                 /  group                        ; named list
-            $address = '/^\s*(?:' . $mailbox . '|' . $group . ')$/';
-            $uncomment =
-            '/((?:(?:\\\\"|[^("])*(?:' . $quoted_string .
-                                             ')?)*)((?<!\\\\)\((?:(?2)|.)*?(?<!\\\\)\))/';
-        }
-        // strip comments
-        $email = preg_replace($uncomment, '$1 ', $email);
-        return preg_match($address, $email);
-    }
-
-    /**
-     * Full TLD Validation function
-     *
-     * This function is used to make a much more proficient validation
-     * against all types of official domain names.
-     *
-     * @access protected
-     * @param  string    $email    The email address to check.
-     * @param  array     $options  The options for validation
-     * @return bool      True if validating succeeds
-     */
-    function _fullTLDValidation($email, $options)
-    {
-        $validate = array();
-
-        switch ($options) {
-            /** 1 */
-            case VALIDATE_ITLD_EMAILS:
-                array_push($validate, 'itld');
-                break;
-
-            /** 2 */
-            case VALIDATE_GTLD_EMAILS:
-                array_push($validate, 'gtld');
-                break;
-
-            /** 3 */
-            case VALIDATE_ITLD_EMAILS | VALIDATE_GTLD_EMAILS:
-                array_push($validate, 'itld');
-                array_push($validate, 'gtld');
-                break;
-
-            /** 4 */
-            case VALIDATE_CCTLD_EMAILS:
-                array_push($validate, 'cctld');
-                break;
-
-            /** 5 */
-            case VALIDATE_CCTLD_EMAILS | VALIDATE_ITLD_EMAILS:
-                array_push($validate, 'cctld');
-                array_push($validate, 'itld');
-                break;
-
-            /** 6 */
-            case VALIDATE_CCTLD_EMAILS ^ VALIDATE_ITLD_EMAILS:
-                array_push($validate, 'cctld');
-                array_push($validate, 'itld');
-                break;
-
-            /** 7 - 8 */
-            case VALIDATE_CCTLD_EMAILS | VALIDATE_ITLD_EMAILS | VALIDATE_GTLD_EMAILS:
-            case VALIDATE_ALL_EMAILS:
-                array_push($validate, 'cctld');
-                array_push($validate, 'itld');
-                array_push($validate, 'gtld');
-                break;
-        }
-
-        /**
-         * Debugging still, not implemented but code is somewhat here.
-         */
-
-        $self = new Validate;
-
-        $toValidate = array();
-
-        foreach ($validate as $valid) {
-            $tmpVar = '_' . (string)$valid;
-            $toValidate[$valid] = $self->{$tmpVar};
-        }
-
-        $e = $self->executeFullEmailValidation($email, $toValidate);
-
-        return $e;
-    }
-    // {{{ protected function executeFullEmailValidation
-    /**
-     * Execute the validation
-     *
-     * This function will execute the full email vs tld
-     * validation using an array of tlds passed to it.
-     *
-     * @access public
-     * @param  string $email       The email to validate.
-     * @param  array  $arrayOfTLDs The array of the TLDs to validate
-     * @return true or false (Depending on if it validates or if it does not)
-     */
-    function executeFullEmailValidation($email, $arrayOfTLDs)
-    {
-        $emailEnding = explode('.', $email);
-        $emailEnding = $emailEnding[count($emailEnding)-1];
-        
-        foreach ($arrayOfTLDs as $validator => $keys) {
-            if (in_array($emailEnding, $keys)) {
-                return true;
-            }
-        }
-        return false;
-    }
-    // }}}
-
-    /**
-     * Validate an email
-     *
-     * @param string $email email to validate
-     * @param mixed boolean (BC) $check_domain   Check or not if the domain exists
-     *              array $options associative array of options
-     *              'check_domain' boolean Check or not if the domain exists
-     *              'use_rfc822' boolean Apply the full RFC822 grammar
-     *
-     * @return boolean true if valid email, false if not
-     *
-     * @access public
-     */
-    function email($email, $options = null)
-    {
-        $check_domain = false;
-        $use_rfc822 = false;
-        if (is_bool($options)) {
-            $check_domain = $options;
-        } elseif (is_array($options)) {
-            extract($options);
-        }
-
-        /**
-         * @todo Fix bug here.. even if it passes this, it won't be passing
-         *       The regular expression below
-         */
-        if (isset($fullTLDValidation)) {
-            $valid = Validate::_fullTLDValidation($email, $fullTLDValidation);
-
-            if (!$valid) {
-                return false;
-            }
-        }
-
-        // the base regexp for address
-        $regex = '&^(?:                                               # recipient:
-         ("\s*(?:[^"\f\n\r\t\v\b\s]+\s*)+")|                          #1 quoted name
-         ([-\w!\#\$%\&\'*+~/^`|{}]+(?:\.[-\w!\#\$%\&\'*+~/^`|{}]+)*)) #2 OR dot-atom
-         @(((\[)?                     #3 domain, 4 as IPv4, 5 optionally bracketed
-         (?:(?:(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:[0-1]?[0-9]?[0-9]))\.){3}
-               (?:(?:25[0-5])|(?:2[0-4][0-9])|(?:[0-1]?[0-9]?[0-9]))))(?(5)\])|
-         ((?:[a-z0-9](?:[-a-z0-9]*[a-z0-9])?\.)*[a-z0-9](?:[-a-z0-9]*[a-z0-9])?)  #6 domain as hostname
-         \.((?:([^- ])[-a-z]*[-a-z]))) #7 TLD 
-         $&xi';
-        
-        if ($use_rfc822? Validate::__emailRFC822($email, $options) :
-            preg_match($regex, $email)) {
-            if ($check_domain && function_exists('checkdnsrr')) {
-                list (, $domain)  = explode('@', $email);
-                if (checkdnsrr($domain, 'MX') || checkdnsrr($domain, 'A')) {
-                    return true;
-                }
-                return false;
-            }
-            return true;
-        }
-        return false;
-    }
-
-   /**
-     * Validate a string using the given format 'format'
-     *
-     * @param string    $string     String to validate
-     * @param array     $options    Options array where:
-     *                              'format' is the format of the string
-     *                                  Ex: VALIDATE_NUM . VALIDATE_ALPHA (see constants)
-     *                              'min_length' minimum length
-     *                              'max_length' maximum length
-     *
-     * @return boolean true if valid string, false if not
-     *
-     * @access public
-     */
-    function string($string, $options)
-    {
-        $format = null;
-        $min_length = $max_length = 0;
-        if (is_array($options)) {
-            extract($options);
-        }
-        if ($format && !preg_match("|^[$format]*\$|s", $string)) {
-            return false;
-        }
-        if ($min_length && strlen($string) < $min_length) {
-            return false;
-        }
-        if ($max_length && strlen($string) > $max_length) {
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Validate an URI (RFC2396)
-     * This function will validate 'foobarstring' by default, to get it to validate
-     * only http, https, ftp and such you have to pass it in the allowed_schemes
-     * option, like this:
-     * <code>
-     * $options = array('allowed_schemes' => array('http', 'https', 'ftp'))
-     * var_dump(Validate::uri('http://www.example.org', $options));
-     * </code>
-     *
-     * NOTE 1: The rfc2396 normally allows middle '-' in the top domain
-     *         e.g. http://example.co-m should be valid
-     *         However, as '-' is not used in any known TLD, it is invalid
-     * NOTE 2: As double shlashes // are allowed in the path part, only full URIs
-     *         including an authority can be valid, no relative URIs
-     *         the // are mandatory (optionally preceeded by the 'sheme:' )
-     * NOTE 3: the full complience to rfc2396 is not achieved by default
-     *         the characters ';/?:@$,' will not be accepted in the query part
-     *         if not urlencoded, refer to the option "strict'"
-     *
-     * @param string    $url        URI to validate
-     * @param array     $options    Options used by the validation method.
-     *                              key => type
-     *                              'domain_check' => boolean
-     *                                  Whether to check the DNS entry or not
-     *                              'allowed_schemes' => array, list of protocols
-     *                                  List of allowed schemes ('http',
-     *                                  'ssh+svn', 'mms')
-     *                              'strict' => string the refused chars
-     *                                   in query and fragment parts
-     *                                   default: ';/?:@$,'
-     *                                   empty: accept all rfc2396 foreseen chars
-     *
-     * @return boolean true if valid uri, false if not
-     *
-     * @access public
-     */
-    function uri($url, $options = null)
-    {
-        $strict = ';/?:@$,';
-        $domain_check = false;
-        $allowed_schemes = null;
-        if (is_array($options)) {
-            extract($options);
-        }
-        if (preg_match(
-             '&^(?:([a-z][-+.a-z0-9]*):)?                             # 1. scheme
-              (?://                                                   # authority start
-              (?:((?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'();:\&=+$,])*)@)?    # 2. authority-userinfo
-              (?:((?:[a-z0-9](?:[-a-z0-9]*[a-z0-9])?\.)*[a-z](?:[a-z0-9]+)?\.?)  # 3. authority-hostname OR
-              |([0-9]{1,3}(?:\.[0-9]{1,3}){3}))                       # 4. authority-ipv4
-              (?::([0-9]*))?)                                        # 5. authority-port
-              ((?:/(?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'():@\&=+$,;])*)*/?)? # 6. path
-              (?:\?([^#]*))?                                          # 7. query
-              (?:\#((?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'();/?:@\&=+$,])*))? # 8. fragment
-              $&xi', $url, $matches)) {
-            $scheme = isset($matches[1]) ? $matches[1] : '';
-            $authority = isset($matches[3]) ? $matches[3] : '' ;
-            if (is_array($allowed_schemes) &&
-                !in_array($scheme,$allowed_schemes)
-            ) {
-                return false;
-            }
-            if (!empty($matches[4])) {
-                $parts = explode('.', $matches[4]);
-                foreach ($parts as $part) {
-                    if ($part > 255) {
-                        return false;
-                    }
-                }
-            } elseif ($domain_check && function_exists('checkdnsrr')) {
-                if (!checkdnsrr($authority, 'A')) {
-                    return false;
-                }
-            }
-            if ($strict) {
-                $strict = '#[' . preg_quote($strict, '#') . ']#';
-                if ((!empty($matches[7]) && preg_match($strict, $matches[7]))
-                 || (!empty($matches[8]) && preg_match($strict, $matches[8]))) {
-                    return false;
-                }
-            }
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Validate date and times. Note that this method need the Date_Calc class
-     *
-     * @param string    $date   Date to validate
-     * @param array     $options array options where :
-     *                          'format' The format of the date (%d-%m-%Y)
-     *                                   or rfc822_compliant
-     *                          'min' The date has to be greater
-     *                                than this array($day, $month, $year)
-     *                                or PEAR::Date object
-     *                          'max' The date has to be smaller than
-     *                                this array($day, $month, $year)
-     *                                or PEAR::Date object
-     *
-     * @return boolean true if valid date/time, false if not
-     *
-     * @access public
-     */
-    function date($date, $options)
-    {
-        $max = $min = false;
-        $format = '';
-        if (is_array($options)) {
-            extract($options);
-        }
-
-        if (strtolower($format) == 'rfc822_compliant') {
-            $preg = '&^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),) \s+
-                    (?:(\d{2})?) \s+
-                    (?:(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)?) \s+
-                    (?:(\d{2}(\d{2})?)?) \s+
-                    (?:(\d{2}?)):(?:(\d{2}?))(:(?:(\d{2}?)))? \s+
-                    (?:[+-]\d{4}|UT|GMT|EST|EDT|CST|CDT|MST|MDT|PST|PDT|[A-IK-Za-ik-z])$&xi';
-
-            if (!preg_match($preg, $date, $matches)) {
-                return false;
-            }
-
-            $year   = (int)$matches[4];
-            $months = array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
-                            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
-            $month  = array_keys($months, $matches[3]);
-            $month  = (int)$month[0]+1;
-            $day    = (int)$matches[2];
-            $weekday= $matches[1];
-            $hour   = (int)$matches[6];
-            $minute = (int)$matches[7];
-            isset($matches[9]) ? $second = (int)$matches[9] : $second = 0;
-
-            if ((strlen($year) != 4)        ||
-                ($day    > 31   || $day < 1)||
-                ($hour   > 23)  ||
-                ($minute > 59)  ||
-                ($second > 59)) {
-                    return false;
-            }
-        } else {
-            $date_len = strlen($format);
-            for ($i = 0; $i < $date_len; $i++) {
-                $c = $format{$i};
-                if ($c == '%') {
-                    $next = $format{$i + 1};
-                    switch ($next) {
-                        case 'j':
-                        case 'd':
-                            if ($next == 'j') {
-                                $day = (int)Validate::_substr($date, 1, 2);
-                            } else {
-                                $day = (int)Validate::_substr($date, 0, 2);
-                            }
-                            if ($day < 1 || $day > 31) {
-                                return false;
-                            }
-                            break;
-                        case 'm':
-                        case 'n':
-                            if ($next == 'm') {
-                                $month = (int)Validate::_substr($date, 0, 2);
-                            } else {
-                                $month = (int)Validate::_substr($date, 1, 2);
-                            }
-                            if ($month < 1 || $month > 12) {
-                                return false;
-                            }
-                            break;
-                        case 'Y':
-                        case 'y':
-                            if ($next == 'Y') {
-                                $year = Validate::_substr($date, 4);
-                                $year = (int)$year?$year:'';
-                            } else {
-                                $year = (int)(substr(date('Y'), 0, 2) .
-                                              Validate::_substr($date, 2));
-                            }
-                            if (strlen($year) != 4 || $year < 0 || $year > 9999) {
-                                return false;
-                            }
-                            break;
-                        case 'g':
-                        case 'h':
-                            if ($next == 'g') {
-                                $hour = Validate::_substr($date, 1, 2);
-                            } else {
-                                $hour = Validate::_substr($date, 2);
-                            }
-                            if (!preg_match('/^\d+$/', $hour) || $hour < 0 || $hour > 12) {
-                                return false;
-                            }
-                            break;
-                        case 'G':
-                        case 'H':
-                            if ($next == 'G') {
-                                $hour = Validate::_substr($date, 1, 2);
-                            } else {
-                                $hour = Validate::_substr($date, 2);
-                            }
-                            if (!preg_match('/^\d+$/', $hour) || $hour < 0 || $hour > 24) {
-                                return false;
-                            }
-                            break;
-                        case 's':
-                        case 'i':
-                            $t = Validate::_substr($date, 2);
-                            if (!preg_match('/^\d+$/', $t) || $t < 0 || $t > 59) {
-                                return false;
-                            }
-                            break;
-                        default:
-                            trigger_error("Not supported char `$next' after % in offset " . ($i+2), E_USER_WARNING);
-                    }
-                    $i++;
-                } else {
-                    //literal
-                    if (Validate::_substr($date, 1) != $c) {
-                        return false;
-                    }
-                }
-            }
-        }
-        // there is remaing data, we don't want it
-        if (strlen($date) && (strtolower($format) != 'rfc822_compliant')) {
-            return false;
-        }
-
-        if (isset($day) && isset($month) && isset($year)) {
-            if (!checkdate($month, $day, $year)) {
-                return false;
-            }
-
-            if (strtolower($format) == 'rfc822_compliant') {
-                if ($weekday != date("D", mktime(0, 0, 0, $month, $day, $year))) {
-                    return false;
-                }
-            }
-
-            if ($min) {
-                include_once 'Date/Calc.php';
-                if (is_a($min, 'Date') &&
-                    (Date_Calc::compareDates($day, $month, $year,
-                                             $min->getDay(), $min->getMonth(), $min->getYear()) < 0))
-                {
-                    return false;
-                } elseif (is_array($min) &&
-                        (Date_Calc::compareDates($day, $month, $year,
-                                             $min[0], $min[1], $min[2]) < 0))
-                {
-                    return false;
-                }
-            }
-
-            if ($max) {
-                include_once 'Date/Calc.php';
-                if (is_a($max, 'Date') &&
-                    (Date_Calc::compareDates($day, $month, $year,
-                                             $max->getDay(), $max->getMonth(), $max->getYear()) > 0))
-                {
-                    return false;
-                } elseif (is_array($max) &&
-                        (Date_Calc::compareDates($day, $month, $year,
-                                                 $max[0], $max[1], $max[2]) > 0))
-                {
-                    return false;
-                }
-            }
-        }
-
-        return true;
-    }
-
-    function _substr(&$date, $num, $opt = false)
-    {
-        if ($opt && strlen($date) >= $opt && preg_match('/^[0-9]{'.$opt.'}/', $date, $m)) {
-            $ret = $m[0];
-        } else {
-            $ret = substr($date, 0, $num);
-        }
-        $date = substr($date, strlen($ret));
-        return $ret;
-    }
-
-    function _modf($val, $div) {
-        if (function_exists('bcmod')) {
-            return bcmod($val, $div);
-        } elseif (function_exists('fmod')) {
-            return fmod($val, $div);
-        }
-        $r = $val / $div;
-        $i = intval($r);
-        return intval($val - $i * $div + .1);
-    }
-
-    /**
-     * Calculates sum of product of number digits with weights
-     *
-     * @param string $number number string
-     * @param array $weights reference to array of weights
-     *
-     * @returns int returns product of number digits with weights
-     *
-     * @access protected
-     */
-    function _multWeights($number, &$weights) {
-        if (!is_array($weights)) {
-            return -1;
-        }
-        $sum = 0;
-
-        $count = min(count($weights), strlen($number));
-        if ($count == 0)  { // empty string or weights array
-            return -1;
-        }
-        for ($i = 0; $i < $count; ++$i) {
-            $sum += intval(substr($number, $i, 1)) * $weights[$i];
-        }
-
-        return $sum;
-    }
-
-    /**
-     * Calculates control digit for a given number
-     *
-     * @param string $number number string
-     * @param array $weights reference to array of weights
-     * @param int $modulo (optionsl) number
-     * @param int $subtract (optional) number
-     * @param bool $allow_high (optional) true if function can return number higher than 10
-     *
-     * @returns int -1 calculated control number is returned
-     *
-     * @access protected
-     */
-    function _getControlNumber($number, &$weights, $modulo = 10, $subtract = 0, $allow_high = false) {
-        // calc sum
-        $sum = Validate::_multWeights($number, $weights);
-        if ($sum == -1) {
-            return -1;
-        }
-        $mod = Validate::_modf($sum, $modulo);  // calculate control digit
-
-        if ($subtract > $mod && $mod > 0) {
-            $mod = $subtract - $mod;
-        }
-        if ($allow_high === false) {
-            $mod %= 10;           // change 10 to zero
-        }
-        return $mod;
-    }
-
-    /**
-     * Validates a number
-     *
-     * @param string $number number to validate
-     * @param array $weights reference to array of weights
-     * @param int $modulo (optionsl) number
-     * @param int $subtract (optional) numbier
-     *
-     * @returns bool true if valid, false if not
-     *
-     * @access protected
-     */
-    function _checkControlNumber($number, &$weights, $modulo = 10, $subtract = 0) {
-        if (strlen($number) < count($weights)) {
-            return false;
-        }
-        $target_digit  = substr($number, count($weights), 1);
-        $control_digit = Validate::_getControlNumber($number, $weights, $modulo, $subtract, $modulo > 10);
-
-        if ($control_digit == -1) {
-            return false;
-        }
-        if ($target_digit === 'X' && $control_digit == 10) {
-            return true;
-        }
-        if ($control_digit != $target_digit) {
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Bulk data validation for data introduced in the form of an
-     * assoc array in the form $var_name => $value.
-     * Can be used on any of Validate subpackages
-     *
-     * @param  array   $data     Ex: array('name' => 'toto', 'email' => 'toto@thing.info');
-     * @param  array   $val_type Contains the validation type and all parameters used in.
-     *                           'val_type' is not optional
-     *                           others validations properties must have the same name as the function
-     *                           parameters.
-     *                           Ex: array('toto'=>array('type'=>'string','format'='toto@thing.info','min_length'=>5));
-     * @param  boolean $remove if set, the elements not listed in data will be removed
-     *
-     * @return array   value name => true|false    the value name comes from the data key
-     *
-     * @access public
-     */
-    function multiple(&$data, &$val_type, $remove = false)
-    {
-        $keys = array_keys($data);
-        $valid = array();
-        foreach ($keys as $var_name) {
-            if (!isset($val_type[$var_name])) {
-                if ($remove) {
-                    unset($data[$var_name]);
-                }
-                continue;
-            }
-            $opt = $val_type[$var_name];
-            $methods = get_class_methods('Validate');
-            $val2check = $data[$var_name];
-            // core validation method
-            if (in_array(strtolower($opt['type']), $methods)) {
-                //$opt[$opt['type']] = $data[$var_name];
-                $method = $opt['type'];
-                unset($opt['type']);
-
-                if (sizeof($opt) == 1 && is_array(reset($opt))) {
-                    $opt = array_pop($opt);
-                }
-                $valid[$var_name] = call_user_func(array('Validate', $method), $val2check, $opt);
-
-            /**
-             * external validation method in the form:
-             * "<class name><underscore><method name>"
-             * Ex: us_ssn will include class Validate/US.php and call method ssn()
-             */
-            } elseif (strpos($opt['type'], '_') !== false) {
-                $validateType = explode('_', $opt['type']);
-                $method       = array_pop($validateType);
-                $class        = implode('_', $validateType);
-                $classPath    = str_replace('_', DIRECTORY_SEPARATOR, $class);
-                $class        = 'Validate_' . $class;
-                if (!@include_once "Validate/$classPath.php") {
-                    trigger_error("$class isn't installed or you may have some permissoin issues", E_USER_ERROR);
-                }
-
-                $ce = substr(phpversion(), 0, 1) > 4 ? class_exists($class, false) : class_exists($class);
-                if (!$ce ||
-                    !in_array($method, get_class_methods($class)))
-                {
-                    trigger_error("Invalid validation type $class::$method", E_USER_WARNING);
-                    continue;
-                }
-                unset($opt['type']);
-                if (sizeof($opt) == 1) {
-                    $opt = array_pop($opt);
-                }
-                $valid[$var_name] = call_user_func(array($class, $method), $data[$var_name], $opt);
-            } else {
-                trigger_error("Invalid validation type {$opt['type']}", E_USER_WARNING);
-            }
-        }
-        return $valid;
-    }
-}
-
+<?php
+/**
+ * Validation class
+ *
+ * Copyright (c) 1997-2006 Pierre-Alain Joye,Tomas V.V.Cox, Amir Saied  
+ *
+ * This source file is subject to the New BSD license, That is bundled  
+ * with this package in the file LICENSE, and is available through      
+ * the world-wide-web at                                                
+ * http://www.opensource.org/licenses/bsd-license.php                   
+ * If you did not receive a copy of the new BSDlicense and are unable   
+ * to obtain it through the world-wide-web, please send a note to       
+ * pajoye@php.net so we can mail you a copy immediately.                
+ *
+ * Author: Tomas V.V.Cox  <cox@idecnet.com>                             
+ *         Pierre-Alain Joye <pajoye@php.net>                           
+ *         Amir Mohammad Saied <amir@php.net>                           
+ *
+ *
+ * Package to validate various datas. It includes :
+ *   - numbers (min/max, decimal or not)
+ *   - email (syntax, domain check)
+ *   - string (predifined type alpha upper and/or lowercase, numeric,...)
+ *   - date (min, max, rfc822 compliant)
+ *   - uri (RFC2396)
+ *   - possibility valid multiple data with a single method call (::multiple)
+ *
+ * @category   Validate
+ * @package    Validate
+ * @author     Tomas V.V.Cox <cox@idecnet.com>
+ * @author     Pierre-Alain Joye <pajoye@php.net>
+ * @author     Amir Mohammad Saied <amir@php.net>
+ * @copyright  1997-2006 Pierre-Alain Joye,Tomas V.V.Cox,Amir Mohammad Saied
+ * @license    http://www.opensource.org/licenses/bsd-license.php  New BSD License
+ * @version    CVS: $Id: Validate.php,v 1.134 2009/01/28 12:27:33 davidc Exp $
+ * @link       http://pear.php.net/package/Validate
+ */
+
+/**
+ * Methods for common data validations
+ */
+define('VALIDATE_NUM',          '0-9');
+define('VALIDATE_SPACE',        '\s');
+define('VALIDATE_ALPHA_LOWER',  'a-z');
+define('VALIDATE_ALPHA_UPPER',  'A-Z');
+define('VALIDATE_ALPHA',        VALIDATE_ALPHA_LOWER . VALIDATE_ALPHA_UPPER);
+define('VALIDATE_EALPHA_LOWER', VALIDATE_ALPHA_LOWER . 'áéíóúýàèìòùäëïöüÿâêîôûãñõ¨åæç½ðøþß');
+define('VALIDATE_EALPHA_UPPER', VALIDATE_ALPHA_UPPER . 'ÁÉÍÓÚÝÀÈÌÒÙÄËÏÖܾÂÊÎÔÛÃÑÕ¦ÅÆǼÐØÞ');
+define('VALIDATE_EALPHA',       VALIDATE_EALPHA_LOWER . VALIDATE_EALPHA_UPPER);
+define('VALIDATE_PUNCTUATION',  VALIDATE_SPACE . '\.,;\:&"\'\?\!\(\)');
+define('VALIDATE_NAME',         VALIDATE_EALPHA . VALIDATE_SPACE . "'" . "-");
+define('VALIDATE_STREET',       VALIDATE_NUM . VALIDATE_NAME . "/\\ºª\.");
+
+define('VALIDATE_ITLD_EMAILS',  1);
+define('VALIDATE_GTLD_EMAILS',  2);
+define('VALIDATE_CCTLD_EMAILS', 4);
+define('VALIDATE_ALL_EMAILS',   8);
+
+/**
+ * Validation class
+ *
+ * Package to validate various datas. It includes :
+ *   - numbers (min/max, decimal or not)
+ *   - email (syntax, domain check)
+ *   - string (predifined type alpha upper and/or lowercase, numeric,...)
+ *   - date (min, max)
+ *   - uri (RFC2396)
+ *   - possibility valid multiple data with a single method call (::multiple)
+ *
+ * @category  Validate
+ * @package   Validate
+ * @author    Tomas V.V.Cox <cox@idecnet.com>
+ * @author    Pierre-Alain Joye <pajoye@php.net>
+ * @author    Amir Mohammad Saied <amir@php.net>
+ * @copyright 1997-2006 Pierre-Alain Joye,Tomas V.V.Cox,Amir Mohammad Saied
+ * @license   http://www.opensource.org/licenses/bsd-license.php  New BSD License
+ * @version   Release: @package_version@
+ * @link      http://pear.php.net/package/Validate
+ */
+class Validate
+{
+    /**
+     * International Top-Level Domain
+     *
+     * This is an array of the known international
+     * top-level domain names.
+     *
+     * @access protected
+     * @var    array     $_iTld (International top-level domains)
+     */
+    var $_itld = array(
+        'arpa',
+        'root',
+    );
+
+    /**
+     * Generic top-level domain
+     *
+     * This is an array of the official
+     * generic top-level domains.
+     *
+     * @access protected
+     * @var    array     $_gTld (Generic top-level domains)
+     */
+    var $_gtld = array(
+        'aero',
+        'biz',
+        'cat',
+        'com',
+        'coop',
+        'edu',
+        'gov',
+        'info',
+        'int',
+        'jobs',
+        'mil',
+        'mobi',
+        'museum',
+        'name',
+        'net',
+        'org',
+        'pro',
+        'travel',
+        'asia',
+        'post',
+        'tel',
+        'geo',
+    );
+
+    /**
+     * Country code top-level domains
+     *
+     * This is an array of the official country
+     * codes top-level domains
+     *
+     * @access protected
+     * @var    array     $_ccTld (Country Code Top-Level Domain)
+     */
+    var $_cctld = array(
+        'ac',
+        'ad','ae','af','ag',
+        'ai','al','am','an',
+        'ao','aq','ar','as',
+        'at','au','aw','ax',
+        'az','ba','bb','bd',
+        'be','bf','bg','bh',
+        'bi','bj','bm','bn',
+        'bo','br','bs','bt',
+        'bu','bv','bw','by',
+        'bz','ca','cc','cd',
+        'cf','cg','ch','ci',
+        'ck','cl','cm','cn',
+        'co','cr','cs','cu',
+        'cv','cx','cy','cz',
+        'de','dj','dk','dm',
+        'do','dz','ec','ee',
+        'eg','eh','er','es',
+        'et','eu','fi','fj',
+        'fk','fm','fo','fr',
+        'ga','gb','gd','ge',
+        'gf','gg','gh','gi',
+        'gl','gm','gn','gp',
+        'gq','gr','gs','gt',
+        'gu','gw','gy','hk',
+        'hm','hn','hr','ht',
+        'hu','id','ie','il',
+        'im','in','io','iq',
+        'ir','is','it','je',
+        'jm','jo','jp','ke',
+        'kg','kh','ki','km',
+        'kn','kp','kr','kw',
+        'ky','kz','la','lb',
+        'lc','li','lk','lr',
+        'ls','lt','lu','lv',
+        'ly','ma','mc','md',
+        'me','mg','mh','mk',
+        'ml','mm','mn','mo',
+        'mp','mq','mr','ms',
+        'mt','mu','mv','mw',
+        'mx','my','mz','na',
+        'nc','ne','nf','ng',
+        'ni','nl','no','np',
+        'nr','nu','nz','om',
+        'pa','pe','pf','pg',
+        'ph','pk','pl','pm',
+        'pn','pr','ps','pt',
+        'pw','py','qa','re',
+        'ro','rs','ru','rw',
+        'sa','sb','sc','sd',
+        'se','sg','sh','si',
+        'sj','sk','sl','sm',
+        'sn','so','sr','st',
+        'su','sv','sy','sz',
+        'tc','td','tf','tg',
+        'th','tj','tk','tl',
+        'tm','tn','to','tp',
+        'tr','tt','tv','tw',
+        'tz','ua','ug','uk',
+        'us','uy','uz','va',
+        'vc','ve','vg','vi',
+        'vn','vu','wf','ws',
+        'ye','yt','yu','za',
+        'zm','zw',
+    );
+
+    /**
+     * Validate a tag URI (RFC4151)
+     *
+     * @param string $uri tag URI to validate
+     *
+     * @return boolean true if valid tag URI, false if not
+     *
+     * @access private
+     */
+    function __uriRFC4151($uri)
+    {
+        $datevalid = false;
+        if (preg_match(
+            '/^tag:(?<name>.*),(?<date>\d{4}-?\d{0,2}-?\d{0,2}):(?<specific>.*)(.*:)*$/', $uri, $matches)) {
+            $date  = $matches['date'];
+            $date6 = strtotime($date);
+            if ((strlen($date) == 4) && $date <= date('Y')) {
+                $datevalid = true;
+            } elseif ((strlen($date) == 7) && ($date6 < strtotime("now"))) {
+                $datevalid = true;
+            } elseif ((strlen($date) == 10) && ($date6 < strtotime("now"))) {
+                $datevalid = true;
+            }
+            if (self::email($matches['name'])) {
+                $namevalid = true;
+            } else {
+                $namevalid = self::email('info@' . $matches['name']);
+            }
+            return $datevalid && $namevalid;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Validate a number
+     *
+     * @param string $number  Number to validate
+     * @param array  $options array where:
+     *                          'decimal'  is the decimal char or false when decimal
+     *                                     not allowed.
+     *                                     i.e. ',.' to allow both ',' and '.'
+     *                          'dec_prec' Number of allowed decimals
+     *                          'min'      minimum value
+     *                          'max'      maximum value
+     *
+     * @return boolean true if valid number, false if not
+     *
+     * @access public
+     */
+    function number($number, $options = array())
+    {
+        $decimal = $dec_prec = $min = $max = null;
+        if (is_array($options)) {
+            extract($options);
+        }
+
+        $dec_prec  = $dec_prec ? "{1,$dec_prec}" : '+';
+        $dec_regex = $decimal  ? "[$decimal][0-9]$dec_prec" : '';
+
+        if (!preg_match("|^[-+]?\s*[0-9]+($dec_regex)?\$|", $number)) {
+            return false;
+        }
+
+        if ($decimal != '.') {
+            $number = strtr($number, $decimal, '.');
+        }
+
+        $number = (float)str_replace(' ', '', $number);
+        if ($min !== null && $min > $number) {
+            return false;
+        }
+
+        if ($max !== null && $max < $number) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Converting a string to UTF-7 (RFC 2152)
+     *
+     * @param string $string string to be converted
+     *
+     * @return  string  converted string
+     *
+     * @access  private
+     */
+    function __stringToUtf7($string)
+    {
+        $return = '';
+        $utf7   = array(
+                        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
+                        'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+                        'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+                        'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
+                        's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2',
+                        '3', '4', '5', '6', '7', '8', '9', '+', ','
+                    );
+
+
+        $state = 0;
+
+        if (!empty($string)) {
+            $i = 0;
+            while ($i <= strlen($string)) {
+                $char = substr($string, $i, 1);
+                if ($state == 0) {
+                    if ((ord($char) >= 0x7F) || (ord($char) <= 0x1F)) {
+                        if ($char) {
+                            $return .= '&';
+                        }
+                        $state = 1;
+                    } elseif ($char == '&') {
+                        $return .= '&-';
+                    } else {
+                        $return .= $char;
+                    }
+                } elseif (($i == strlen($string) ||
+                            !((ord($char) >= 0x7F)) || (ord($char) <= 0x1F))) {
+                    if ($state != 1) {
+                        if (ord($char) > 64) {
+                            $return .= '';
+                        } else {
+                            $return .= $utf7[ord($char)];
+                        }
+                    }
+                    $return .= '-';
+                    $state   = 0;
+                } else {
+                    switch($state) {
+                    case 1:
+                        $return .= $utf7[ord($char) >> 2];
+                        $residue = (ord($char) & 0x03) << 4;
+                        $state   = 2;
+                        break;
+                    case 2:
+                        $return .= $utf7[$residue | (ord($char) >> 4)];
+                        $residue = (ord($char) & 0x0F) << 2;
+                        $state   = 3;
+                        break;
+                    case 3:
+                        $return .= $utf7[$residue | (ord($char) >> 6)];
+                        $return .= $utf7[ord($char) & 0x3F];
+                        $state   = 1;
+                        break;
+                    }
+                }
+                $i++;
+            }
+            return $return;
+        }
+        return '';
+    }
+
+    /**
+     * Validate an email according to full RFC822 (inclusive human readable part)
+     *
+     * @param string $email   email to validate,
+     *                        will return the address for optional dns validation
+     * @param array  $options email() options
+     *
+     * @return boolean true if valid email, false if not
+     *
+     * @access private
+     */
+    function __emailRFC822(&$email, &$options)
+    {
+        static $address   = null;
+        static $uncomment = null;
+        if (!$address) {
+            // atom        =  1*<any CHAR except specials, SPACE and CTLs>
+            $atom = '[^][()<>@,;:\\".\s\000-\037\177-\377]+\s*';
+            // qtext       =  <any CHAR excepting <">,     ; => may be folded
+            //         "\" & CR, and including linear-white-space>
+            $qtext = '[^"\\\\\r]';
+            // quoted-pair =  "\" CHAR                     ; may quote any char
+            $quoted_pair = '\\\\.';
+            // quoted-string = <"> *(qtext/quoted-pair) <">; Regular qtext or
+            //                                             ;   quoted chars.
+            $quoted_string = '"(?:' . $qtext . '|' . $quoted_pair . ')*"\s*';
+            // word        =  atom / quoted-string
+            $word = '(?:' . $atom . '|' . $quoted_string . ')';
+            // local-part  =  word *("." word)             ; uninterpreted
+            //                                             ; case-preserved
+            $local_part = $word . '(?:\.\s*' . $word . ')*';
+            // dtext       =  <any CHAR excluding "[",     ; => may be folded
+            //         "]", "\" & CR, & including linear-white-space>
+            $dtext = '[^][\\\\\r]';
+            // domain-literal =  "[" *(dtext / quoted-pair) "]"
+            $domain_literal = '\[(?:' . $dtext . '|' . $quoted_pair . ')*\]\s*';
+            // sub-domain  =  domain-ref / domain-literal
+            // domain-ref  =  atom                         ; symbolic reference
+            $sub_domain = '(?:' . $atom . '|' . $domain_literal . ')';
+            // domain      =  sub-domain *("." sub-domain)
+            $domain = $sub_domain . '(?:\.\s*' . $sub_domain . ')*';
+            // addr-spec   =  local-part "@" domain        ; global address
+            $addr_spec = $local_part . '@\s*' . $domain;
+            // route       =  1#("@" domain) ":"           ; path-relative
+            $route = '@' . $domain . '(?:,@\s*' . $domain . ')*:\s*';
+            // route-addr  =  "<" [route] addr-spec ">"
+            $route_addr = '<\s*(?:' . $route . ')?' . $addr_spec . '>\s*';
+            // phrase      =  1*word                       ; Sequence of words
+            $phrase = $word  . '+';
+            // mailbox     =  addr-spec                    ; simple address
+            //             /  phrase route-addr            ; name & addr-spec
+            $mailbox = '(?:' . $addr_spec . '|' . $phrase . $route_addr . ')';
+            // group       =  phrase ":" [#mailbox] ";"
+            $group = $phrase . ':\s*(?:' . $mailbox . '(?:,\s*' . $mailbox . ')*)?;\s*';
+            //     address     =  mailbox                      ; one addressee
+            //                 /  group                        ; named list
+            $address = '/^\s*(?:' . $mailbox . '|' . $group . ')$/';
+
+            $uncomment =
+            '/((?:(?:\\\\"|[^("])*(?:' . $quoted_string .
+                                             ')?)*)((?<!\\\\)\((?:(?2)|.)*?(?<!\\\\)\))/';
+        }
+        // strip comments
+        $email = preg_replace($uncomment, '$1 ', $email);
+        return preg_match($address, $email);
+    }
+
+    /**
+     * Full TLD Validation function
+     *
+     * This function is used to make a much more proficient validation
+     * against all types of official domain names.
+     *
+     * @param string $email   The email address to check.
+     * @param array  $options The options for validation
+     *
+     * @access protected
+     *
+     * @return bool True if validating succeeds
+     */
+    function _fullTLDValidation($email, $options)
+    {
+        $validate = array();
+        if(!empty($options["VALIDATE_ITLD_EMAILS"])) array_push($validate, 'itld');
+        if(!empty($options["VALIDATE_GTLD_EMAILS"])) array_push($validate, 'gtld');
+        if(!empty($options["VALIDATE_CCTLD_EMAILS"])) array_push($validate, 'cctld');
+
+        $self = new Validate;
+
+        $toValidate = array();
+
+        foreach ($validate as $valid) {
+            $tmpVar = '_' . (string)$valid;
+
+            $toValidate[$valid] = $self->{$tmpVar};
+        }
+
+        $e = $self->executeFullEmailValidation($email, $toValidate);
+
+        return $e;
+    }
+    
+    /**
+     * Execute the validation
+     *
+     * This function will execute the full email vs tld
+     * validation using an array of tlds passed to it.
+     *
+     * @param string $email       The email to validate.
+     * @param array  $arrayOfTLDs The array of the TLDs to validate
+     *
+     * @access public
+     *
+     * @return true or false (Depending on if it validates or if it does not)
+     */
+    function executeFullEmailValidation($email, $arrayOfTLDs)
+    {
+        $emailEnding = explode('.', $email);
+        $emailEnding = $emailEnding[count($emailEnding)-1];
+        foreach ($arrayOfTLDs as $validator => $keys) {
+            if (in_array($emailEnding, $keys)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Validate an email
+     *
+     * @param string $email  email to validate
+     * @param mixed  boolean (BC) $check_domain Check or not if the domain exists
+     *              array $options associative array of options
+     *              'check_domain' boolean Check or not if the domain exists
+     *              'use_rfc822' boolean Apply the full RFC822 grammar
+     *
+     * Ex.
+     *  $options = array(
+     *      'check_domain' => 'true',
+     *      'fullTLDValidation' => 'true',
+     *      'use_rfc822' => 'true',
+     *      'VALIDATE_GTLD_EMAILS' => 'true',
+     *      'VALIDATE_CCTLD_EMAILS' => 'true',
+     *      'VALIDATE_ITLD_EMAILS' => 'true',           
+     *      );
+     *
+     * @return boolean true if valid email, false if not
+     *
+     * @access public
+     */
+    function email($email, $options = null)
+    {
+        $check_domain = false;
+        $use_rfc822   = false;
+        if (is_bool($options)) {
+            $check_domain = $options;
+        } elseif (is_array($options)) {
+            extract($options);
+        }
+
+        /**
+         * Check for IDN usage so we can encode the domain as Punycode
+         * before continuing.
+         */
+        $hasIDNA = false;
+
+        if (@include_once('Net/IDNA.php')) {
+            $hasIDNA = true;
+        }
+
+        if ($hasIDNA === true) {
+            if (strpos($email, '@') !== false) {
+                list($name, $domain) = explode('@', $email, 2);
+
+                // Check if the domain contains characters > 127 which means 
+                // it's an idn domain name.
+                $chars = count_chars($domain, 1);
+                if (!empty($chars) && max(array_keys($chars)) > 127) {
+                    $idna   =& Net_IDNA::singleton();
+                    $domain = $idna->encode($domain);
+                }
+
+                $email = "$name@$domain";
+            }
+        }
+        
+        /**
+         * @todo Fix bug here.. even if it passes this, it won't be passing
+         *       The regular expression below
+         */
+        if (isset($fullTLDValidation)) {
+            //$valid = Validate::_fullTLDValidation($email, $fullTLDValidation);
+            $valid = Validate::_fullTLDValidation($email, $options);
+
+            if (!$valid) {
+                return false;
+            }
+        }
+
+        // the base regexp for address
+        $regex = '&^(?:                                               # recipient:
+         ("\s*(?:[^"\f\n\r\t\v\b\s]+\s*)+")|                          #1 quoted name
+         ([-\w!\#\$%\&\'*+~/^`|{}]+(?:\.[-\w!\#\$%\&\'*+~/^`|{}]+)*)) #2 OR dot-atom
+         @(((\[)?                     #3 domain, 4 as IPv4, 5 optionally bracketed
+         (?:(?:(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:[0-1]?[0-9]?[0-9]))\.){3}
+               (?:(?:25[0-5])|(?:2[0-4][0-9])|(?:[0-1]?[0-9]?[0-9]))))(?(5)\])|
+         ((?:[a-z0-9](?:[-a-z0-9]*[a-z0-9])?\.)*[a-z0-9](?:[-a-z0-9]*[a-z0-9])?)  #6 domain as hostname
+         \.((?:([^- ])[-a-z]*[-a-z]))) #7 TLD 
+         $&xi';
+
+        //checks if exists the domain (MX or A)
+        if ($use_rfc822? Validate::__emailRFC822($email, $options) :
+                preg_match($regex, $email)) {
+            if ($check_domain && function_exists('checkdnsrr')) {
+                list ($account, $domain) = explode('@', $email);
+                if (checkdnsrr($domain, 'MX') || checkdnsrr($domain, 'A')) {
+                    return true;
+                }
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Validate a string using the given format 'format'
+     *
+     * @param string $string  String to validate
+     * @param array  $options Options array where:
+     *                          'format' is the format of the string
+     *                              Ex:VALIDATE_NUM . VALIDATE_ALPHA (see constants)
+     *                          'min_length' minimum length
+     *                          'max_length' maximum length
+     *
+     * @return boolean true if valid string, false if not
+     *
+     * @access public
+     */
+    function string($string, $options)
+    {
+        $format     = null;
+        $min_length = 0;
+        $max_length = 0;
+
+        if (is_array($options)) {
+            extract($options);
+        }
+
+        if ($format && !preg_match("|^[$format]*\$|s", $string)) {
+            return false;
+        }
+
+        if ($min_length && strlen($string) < $min_length) {
+            return false;
+        }
+
+        if ($max_length && strlen($string) > $max_length) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Validate an URI (RFC2396)
+     * This function will validate 'foobarstring' by default, to get it to validate
+     * only http, https, ftp and such you have to pass it in the allowed_schemes
+     * option, like this:
+     * <code>
+     * $options = array('allowed_schemes' => array('http', 'https', 'ftp'))
+     * var_dump(Validate::uri('http://www.example.org', $options));
+     * </code>
+     *
+     * NOTE 1: The rfc2396 normally allows middle '-' in the top domain
+     *         e.g. http://example.co-m should be valid
+     *         However, as '-' is not used in any known TLD, it is invalid
+     * NOTE 2: As double shlashes // are allowed in the path part, only full URIs
+     *         including an authority can be valid, no relative URIs
+     *         the // are mandatory (optionally preceeded by the 'sheme:' )
+     * NOTE 3: the full complience to rfc2396 is not achieved by default
+     *         the characters ';/?:@$,' will not be accepted in the query part
+     *         if not urlencoded, refer to the option "strict'"
+     *
+     * @param string $url     URI to validate
+     * @param array  $options Options used by the validation method.
+     *                          key => type
+     *                          'domain_check' => boolean
+     *                              Whether to check the DNS entry or not
+     *                          'allowed_schemes' => array, list of protocols
+     *                              List of allowed schemes ('http',
+     *                              'ssh+svn', 'mms')
+     *                          'strict' => string the refused chars
+     *                              in query and fragment parts
+     *                              default: ';/?:@$,'
+     *                              empty: accept all rfc2396 foreseen chars
+     *
+     * @return boolean true if valid uri, false if not
+     *
+     * @access public
+     */
+    function uri($url, $options = null)
+    {
+        $strict = ';/?:@$,';
+        $domain_check = false;
+        $allowed_schemes = null;
+        if (is_array($options)) {
+            extract($options);
+        }
+        if (is_array($allowed_schemes) &&
+            in_array("tag", $allowed_schemes)
+        ) {
+            if (strpos($url, "tag:") === 0) {
+                return self::__uriRFC4151($url);
+            }
+        }
+
+        if (preg_match(
+             '&^(?:([a-z][-+.a-z0-9]*):)?                             # 1. scheme
+              (?://                                                   # authority start
+              (?:((?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'();:\&=+$,])*)@)?    # 2. authority-userinfo
+              (?:((?:[a-z0-9](?:[-a-z0-9]*[a-z0-9])?\.)*[a-z](?:[a-z0-9]+)?\.?)  # 3. authority-hostname OR
+              |([0-9]{1,3}(?:\.[0-9]{1,3}){3}))                       # 4. authority-ipv4
+              (?::([0-9]*))?)                                        # 5. authority-port
+              ((?:/(?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'():@\&=+$,;])*)*/?)? # 6. path
+              (?:\?([^#]*))?                                          # 7. query
+              (?:\#((?:%[0-9a-f]{2}|[-a-z0-9_.!~*\'();/?:@\&=+$,])*))? # 8. fragment
+              $&xi', $url, $matches)) {
+            $scheme = isset($matches[1]) ? $matches[1] : '';
+            $authority = isset($matches[3]) ? $matches[3] : '' ;
+            if (is_array($allowed_schemes) &&
+                !in_array($scheme, $allowed_schemes)
+            ) {
+                return false;
+            }
+            if (!empty($matches[4])) {
+                $parts = explode('.', $matches[4]);
+                foreach ($parts as $part) {
+                    if ($part > 255) {
+                        return false;
+                    }
+                }
+            } elseif ($domain_check && function_exists('checkdnsrr')) {
+                if (!checkdnsrr($authority, 'A')) {
+                    return false;
+                }
+            }
+            if ($strict) {
+                $strict = '#[' . preg_quote($strict, '#') . ']#';
+                if ((!empty($matches[7]) && preg_match($strict, $matches[7]))
+                 || (!empty($matches[8]) && preg_match($strict, $matches[8]))) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Validate date and times. Note that this method need the Date_Calc class
+     *
+     * @param string $date    Date to validate
+     * @param array  $options array options where :
+     *                          'format' The format of the date (%d-%m-%Y)
+     *                                   or rfc822_compliant
+     *                          'min'    The date has to be greater
+     *                                   than this array($day, $month, $year)
+     *                                   or PEAR::Date object
+     *                          'max'    The date has to be smaller than
+     *                                   this array($day, $month, $year)
+     *                                   or PEAR::Date object
+     *
+     * @return boolean true if valid date/time, false if not
+     *
+     * @access public
+     */
+    function date($date, $options)
+    {
+        $max    = false;
+        $min    = false;
+        $format = '';
+
+        if (is_array($options)) {
+            extract($options);
+        }
+
+        if (strtolower($format) == 'rfc822_compliant') {
+            $preg = '&^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),) \s+
+                    (?:(\d{2})?) \s+
+                    (?:(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)?) \s+
+                    (?:(\d{2}(\d{2})?)?) \s+
+                    (?:(\d{2}?)):(?:(\d{2}?))(:(?:(\d{2}?)))? \s+
+                    (?:[+-]\d{4}|UT|GMT|EST|EDT|CST|CDT|MST|MDT|PST|PDT|[A-IK-Za-ik-z])$&xi';
+
+            if (!preg_match($preg, $date, $matches)) {
+                return false;
+            }
+
+            $year    = (int)$matches[4];
+            $months  = array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
+                             'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
+            $month   = array_keys($months, $matches[3]);
+            $month   = (int)$month[0]+1;
+            $day     = (int)$matches[2];
+            $weekday = $matches[1];
+            $hour    = (int)$matches[6];
+            $minute  = (int)$matches[7];
+            isset($matches[9]) ? $second = (int)$matches[9] : $second = 0;
+
+            if ((strlen($year) != 4)        ||
+                ($day    > 31   || $day < 1)||
+                ($hour   > 23)  ||
+                ($minute > 59)  ||
+                ($second > 59)) {
+                    return false;
+            }
+        } else {
+            $date_len = strlen($format);
+            for ($i = 0; $i < $date_len; $i++) {
+                $c = $format{$i};
+                if ($c == '%') {
+                    $next = $format{$i + 1};
+                    switch ($next) {
+                    case 'j':
+                    case 'd':
+                        if ($next == 'j') {
+                            $day = (int)Validate::_substr($date, 1, 2);
+                        } else {
+                            $day = (int)Validate::_substr($date, 0, 2);
+                        }
+                        if ($day < 1 || $day > 31) {
+                            return false;
+                        }
+                        break;
+                    case 'm':
+                    case 'n':
+                        if ($next == 'm') {
+                            $month = (int)Validate::_substr($date, 0, 2);
+                        } else {
+                            $month = (int)Validate::_substr($date, 1, 2);
+                        }
+                        if ($month < 1 || $month > 12) {
+                            return false;
+                        }
+                        break;
+                    case 'Y':
+                    case 'y':
+                        if ($next == 'Y') {
+                            $year = Validate::_substr($date, 4);
+                            $year = (int)$year?$year:'';
+                        } else {
+                            $year = (int)(substr(date('Y'), 0, 2) .
+                                              Validate::_substr($date, 2));
+                        }
+                        if (strlen($year) != 4 || $year < 0 || $year > 9999) {
+                            return false;
+                        }
+                        break;
+                    case 'g':
+                    case 'h':
+                        if ($next == 'g') {
+                            $hour = Validate::_substr($date, 1, 2);
+                        } else {
+                            $hour = Validate::_substr($date, 2);
+                        }
+                        if (!preg_match('/^\d+$/', $hour) || $hour < 0 || $hour > 12) {
+                            return false;
+                        }
+                        break;
+                    case 'G':
+                    case 'H':
+                        if ($next == 'G') {
+                            $hour = Validate::_substr($date, 1, 2);
+                        } else {
+                            $hour = Validate::_substr($date, 2);
+                        }
+                        if (!preg_match('/^\d+$/', $hour) || $hour < 0 || $hour > 24) {
+                            return false;
+                        }
+                        break;
+                    case 's':
+                    case 'i':
+                        $t = Validate::_substr($date, 2);
+                        if (!preg_match('/^\d+$/', $t) || $t < 0 || $t > 59) {
+                            return false;
+                        }
+                        break;
+                    default:
+                        trigger_error("Not supported char `$next' after % in offset " . ($i+2), E_USER_WARNING);
+                    }
+                    $i++;
+                } else {
+                    //literal
+                    if (Validate::_substr($date, 1) != $c) {
+                        return false;
+                    }
+                }
+            }
+        }
+        // there is remaing data, we don't want it
+        if (strlen($date) && (strtolower($format) != 'rfc822_compliant')) {
+            return false;
+        }
+
+        if (isset($day) && isset($month) && isset($year)) {
+            if (!checkdate($month, $day, $year)) {
+                return false;
+            }
+
+            if (strtolower($format) == 'rfc822_compliant') {
+                if ($weekday != date("D", mktime(0, 0, 0, $month, $day, $year))) {
+                    return false;
+                }
+            }
+
+            if ($min) {
+                include_once 'Date/Calc.php';
+                if (is_a($min, 'Date') &&
+                    (Date_Calc::compareDates($day, $month, $year,
+                        $min->getDay(), $min->getMonth(), $min->getYear()) < 0)
+                ) {
+                    return false;
+                } elseif (is_array($min) &&
+                        (Date_Calc::compareDates($day, $month, $year,
+                            $min[0], $min[1], $min[2]) < 0)
+                ) {
+                    return false;
+                }
+            }
+
+            if ($max) {
+                include_once 'Date/Calc.php';
+                if (is_a($max, 'Date') &&
+                    (Date_Calc::compareDates($day, $month, $year,
+                        $max->getDay(), $max->getMonth(), $max->getYear()) > 0)
+                ) {
+                    return false;
+                } elseif (is_array($max) &&
+                        (Date_Calc::compareDates($day, $month, $year,
+                            $max[0], $max[1], $max[2]) > 0)
+                ) {
+                    return false;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Substr
+     *
+     * @param string &$date Date
+     * @param string $num   Length
+     * @param string $opt   Unknown   
+     *
+     * @access private
+     * @return string
+     */
+    function _substr(&$date, $num, $opt = false)
+    {
+        if ($opt && strlen($date) >= $opt && preg_match('/^[0-9]{'.$opt.'}/', $date, $m)) {
+            $ret = $m[0];
+        } else {
+            $ret = substr($date, 0, $num);
+        }
+        $date = substr($date, strlen($ret));
+        return $ret;
+    }
+
+    function _modf($val, $div)
+    {
+        if (function_exists('bcmod')) {
+            return bcmod($val, $div);
+        } elseif (function_exists('fmod')) {
+            return fmod($val, $div);
+        }
+        $r = $val / $div;
+        $i = intval($r);
+        return intval($val - $i * $div + .1);
+    }
+
+    /**
+     * Calculates sum of product of number digits with weights
+     *
+     * @param string $number  number string
+     * @param array  $weights reference to array of weights
+     *
+     * @access protected
+     *
+     * @return int returns product of number digits with weights
+     */
+    function _multWeights($number, &$weights)
+    {
+        if (!is_array($weights)) {
+            return -1;
+        }
+        $sum = 0;
+
+        $count = min(count($weights), strlen($number));
+        if ($count == 0) { // empty string or weights array
+            return -1;
+        }
+        for ($i = 0; $i < $count; ++$i) {
+            $sum += intval(substr($number, $i, 1)) * $weights[$i];
+        }
+
+        return $sum;
+    }
+
+    /**
+     * Calculates control digit for a given number
+     *
+     * @param string $number     number string
+     * @param array  $weights    reference to array of weights
+     * @param int    $modulo     (optionsl) number
+     * @param int    $subtract   (optional) number
+     * @param bool   $allow_high (optional) true if function can return number higher than 10
+     *
+     * @access protected
+     *
+     * @return  int -1 calculated control number is returned
+     */
+    function _getControlNumber($number, &$weights, $modulo = 10, $subtract = 0, $allow_high = false)
+    {
+        // calc sum
+        $sum = Validate::_multWeights($number, $weights);
+        if ($sum == -1) {
+            return -1;
+        }
+        $mod = Validate::_modf($sum, $modulo);  // calculate control digit
+
+        if ($subtract > $mod && $mod > 0) {
+            $mod = $subtract - $mod;
+        }
+        if ($allow_high === false) {
+            $mod %= 10;           // change 10 to zero
+        }
+        return $mod;
+    }
+
+    /**
+     * Validates a number
+     *
+     * @param string $number   number to validate
+     * @param array  $weights  reference to array of weights
+     * @param int    $modulo   (optional) number
+     * @param int    $subtract (optional) number
+     *
+     * @access protected
+     *
+     * @return  bool true if valid, false if not
+     */
+    function _checkControlNumber($number, &$weights, $modulo = 10, $subtract = 0)
+    {
+        if (strlen($number) < count($weights)) {
+            return false;
+        }
+        $target_digit  = substr($number, count($weights), 1);
+        $control_digit = Validate::_getControlNumber($number, $weights, $modulo, $subtract, $modulo > 10);
+
+        if ($control_digit == -1) {
+            return false;
+        }
+        if ($target_digit === 'X' && $control_digit == 10) {
+            return true;
+        }
+        if ($control_digit != $target_digit) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Bulk data validation for data introduced in the form of an
+     * assoc array in the form $var_name => $value.
+     * Can be used on any of Validate subpackages
+     *
+     * @param array   $data     Ex: array('name' => 'toto', 'email' => 'toto@thing.info');
+     * @param array   $val_type Contains the validation type and all parameters used in.
+     *                          'val_type' is not optional
+     *                          others validations properties must have the same name as the function
+     *                          parameters.
+     *                          Ex: array('toto'=>array('type'=>'string','format'='toto@thing.info','min_length'=>5));
+     * @param boolean $remove   if set, the elements not listed in data will be removed
+     *
+     * @return array   value name => true|false    the value name comes from the data key
+     *
+     * @access public
+     */
+    function multiple(&$data, &$val_type, $remove = false)
+    {
+        $keys  = array_keys($data);
+        $valid = array();
+
+        foreach ($keys as $var_name) {
+            if (!isset($val_type[$var_name])) {
+                if ($remove) {
+                    unset($data[$var_name]);
+                }
+                continue;
+            }
+            $opt       = $val_type[$var_name];
+            $methods   = get_class_methods('Validate');
+            $val2check = $data[$var_name];
+            // core validation method
+            if (in_array(strtolower($opt['type']), $methods)) {
+                //$opt[$opt['type']] = $data[$var_name];
+                $method = $opt['type'];
+                unset($opt['type']);
+
+                if (sizeof($opt) == 1 && is_array(reset($opt))) {
+                    $opt = array_pop($opt);
+                }
+                $valid[$var_name] = call_user_func(array('Validate', $method), $val2check, $opt);
+
+                /**
+                 * external validation method in the form:
+                 * "<class name><underscore><method name>"
+                 * Ex: us_ssn will include class Validate/US.php and call method ssn()
+                 */
+            } elseif (strpos($opt['type'], '_') !== false) {
+                $validateType = explode('_', $opt['type']);
+                $method       = array_pop($validateType);
+                $class        = implode('_', $validateType);
+                $classPath    = str_replace('_', DIRECTORY_SEPARATOR, $class);
+                $class        = 'Validate_' . $class;
+                if (!@include_once "Validate/$classPath.php") {
+                    trigger_error("$class isn't installed or you may have some permissoin issues", E_USER_ERROR);
+                }
+
+                $ce = substr(phpversion(), 0, 1) > 4 ?
+                    class_exists($class, false) : class_exists($class);
+                if (!$ce ||
+                    !in_array($method, get_class_methods($class))
+                ) {
+                    trigger_error("Invalid validation type $class::$method",
+                        E_USER_WARNING);
+                    continue;
+                }
+                unset($opt['type']);
+                if (sizeof($opt) == 1) {
+                    $opt = array_pop($opt);
+                }
+                $valid[$var_name] = call_user_func(array($class, $method),
+                    $data[$var_name], $opt);
+            } else {
+                trigger_error("Invalid validation type {$opt['type']}",
+                    E_USER_WARNING);
+            }
+        }
+        return $valid;
+    }
+}
+