File indexing completed on 2024-05-12 06:02:11

 <?php
 
 /**
  *  Class Gravatar
  *
  * From Gravatar Help:
  *        "A gravatar is a dynamic image resource that is requested from our server. The request
  *        URL is presented here, broken into its segments."
  * Source:
  *    http://site.gravatar.com/site/implement
  *
  * Usage:
  * <code>
  *        $email = "youremail@yourhost.com";
  *        $default = "http://www.yourhost.com/default_image.jpg";    // Optional
  *        $gravatar = new Gravatar($email, $default);
  *        $gravatar->size = 80;
  *        $gravatar->rating = "G";
  *        $gravatar->border = "FF0000";
  *
  *        echo $gravatar; // Or echo $gravatar->toHTML();
  * </code>
  *
  *    Class Page: http://www.phpclasses.org/browse/package/4227.html
  *
  * @author Lucas Araújo <araujo.lucas@gmail.com>
  * @version 1.0
  * @package Gravatar
  */
 class Local_Tools_Gravatar
 {
     /**
      *    Gravatar's url
      */
     const GRAVATAR_URL = "http://www.gravatar.com/avatar.php";
     /**
      *    Query string. key/value
      */
     protected $_properties = array(
         "gravatar_id" => null,
         "default" => null,
         "size" => 80, // The default value
         "rating" => null,
         "border" => null,
     );
     /**
      *    E-mail. This will be converted to md5($email)
      */
     protected $email = "";
     /**
      *    Extra attributes to the IMG tag like ALT, CLASS, STYLE...
      */
     protected $extra = "";
     /**
      *    Ratings available
      */
     private $GRAVATAR_RATING = array("G", "PG", "R", "X");
 
     /**
      *
      */
     public function __construct($email = null, $default = null)
     {
         $this->setEmail($email);
         $this->setDefault($default);
     }
 
     /**
      *
      */
     public function setEmail($email)
     {
         if ($this->isValidEmail($email)) {
             $this->email = $email;
             $this->_properties['gravatar_id'] = md5(strtolower($this->email));
             return true;
         }
         return false;
     }
 
     /**
      *
      */
     public function isValidEmail($email)
     {
         // Source: http://www.zend.com/zend/spotlight/ev12apr.php
         return eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $email);
     }
 
     /**
      *
      */
     public function setDefault($default)
     {
         $this->_properties['default'] = $default;
     }
 
     /**
      *
      */
     public function setExtra($extra)
     {
         $this->extra = $extra;
     }
 
     /**
      *    Object property overloading
      */
     public function __get($var)
     {
         return @$this->_properties[$var];
     }
 
     /**
      *    Object property overloading
      */
     public function __set($var, $value)
     {
         switch ($var) {
             case "email":
                 return $this->setEmail($value);
             case "rating":
                 return $this->setRating($value);
             case "default":
                 return $this->setDefault($value);
             case "size":
                 return $this->setSize($value);
             // Cannot set gravatar_id
             case "gravatar_id":
                 return;
         }
         return @$this->_properties[$var] = $value;
     }
 
     /**
      *
      */
     public function setRating($rating)
     {
         if (in_array($rating, $this->GRAVATAR_RATING)) {
             $this->_properties['rating'] = $rating;
             return true;
         }
         return false;
     }
 
     /**
      *
      */
     public function setSize($size)
     {
         $size = (int)$size;
         if ($size <= 0) {
             $size = null;
         } // Use the default size
         $this->_properties['size'] = $size;
     }
 
     /**
      *    Object property overloading
      */
     public function __isset($var)
     {
         return isset($this->_properties[$var]);
     }
 
     /**
      *    Object property overloading
      */
     public function __unset($var)
     {
         return @$this->_properties[$var] == null;
     }
 
     /**
      *    toString
      */
     public function __toString()
     {
         return $this->toHTML();
     }
 
     /**
      *    toHTML
      */
     public function toHTML()
     {
         return '<img src="' . $this->getSrc() . '"'
         . (!isset($this->size) ? "" : ' width="' . $this->size . '" height="' . $this->size . '"')
         . $this->extra
         . ' />';
     }
 
     /**
      *    Get source
      */
     public function getSrc()
     {
         $url = self::GRAVATAR_URL . "?";
         $first = true;
         foreach ($this->_properties as $key => $value) {
             if (isset($value)) {
                 if (!$first) {
                     $url .= "&";
                 }
                 $url .= $key . "=" . urlencode($value);
                 $first = false;
             }
         }
         return $url;
     }
 }