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<?php
/**
* @version 2.2.3
* @package com_vitabook
* @copyright Copyright (C) 2012. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
* @author JoomVita - http://www.joomvita.com
*/
// No direct access
defined('_JEXEC') or die;
//Import filesystem libraries and component helper.
jimport('joomla.filesystem.file');
jimport('joomla.application.component.helper');
/**
* Avatar helper.
*/
abstract class VitabookHelperAvatar
{
public static $avatarSystems = array("COM_VITABOOK_CONFIG_AVATAR_OPTION_NO_AVATARS",
"COM_VITABOOK_CONFIG_AVATAR_OPTION_VITABOOK_AVATARS",
"COM_VITABOOK_CONFIG_AVATAR_OPTION_COMMUNITYBUILDER_AVATARS",
"COM_VITABOOK_CONFIG_AVATAR_OPTION_KUNENA_AVATARS",
"COM_VITABOOK_CONFIG_AVATAR_OPTION_JOMSOCIAL_AVATARS",
"COM_VITABOOK_CONFIG_AVATAR_OPTION_GRAVATAR_AVATARS");
/**
* Method to get the avatar link for a message
* executes database query if necessary for avatar source, then proxies to getAvatarUrl method
* @return link to avatar
*/
public static function messageAvatar($message) {
// Get avatar parameters
$source = JComponentHelper::getParams('com_vitabook')->get('vbAvatar');
// Get info from database
if(!empty($message->jid))
{
switch ($source)
{
case 2:
//-- Community Builder's avatar system is used
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('avatar');
$query->from('#__comprofiler');
$query->where('user_id = '.$message->jid);
$db->setQuery((string)$query);
$message->avatar = $db->loadResult();
break;
case 3:
//-- Kunena's avatar system is used
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('avatar');
$query->from('#__kunena_users');
$query->where('userid = '.$message->jid);
$db->setQuery((string)$query);
$message->avatar = $db->loadResult();
break;
case 4:
//-- Jomsocial's avatar system is used
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('avatar');
$query->from('#__community_users');
$query->where('userid = '.$message->jid);
$db->setQuery((string)$query);
$message->avatar = $db->loadResult();
break;
default:
}
}
// return img url
return VitabookHelperAvatar::getAvatarUrl($message);
}
/**
* Method to set the avatar join query (if necessary for an avatar source)
* @param object $query JDatabase query object
* @return void
*/
public static function setAvatarQuery(&$query)
{
$source = JComponentHelper::getParams('com_vitabook')->get('vbAvatar');
if($source == 2)
{
$query->select('cb.avatar');
$query->leftjoin('#__comprofiler AS cb ON m.jid = cb.user_id');
}
elseif($source == 3)
{
$query->select('k.avatar');
$query->leftjoin('#__kunena_users AS k ON m.jid = k.userid');
}
elseif($source == 4)
{
$query->select('js.avatar');
$query->leftjoin('#__community_users AS js ON m.jid = js.userid');
}
}
/**
* Method to get the avatar src url for a message
* @param object $message VitaBook message object
* @return string avatar img src url
*/
public static function getAvatarUrl($message)
{
$source = JComponentHelper::getParams('com_vitabook')->get('vbAvatar');
// Default avatar
$defaultAvatar = JComponentHelper::getParams('com_vitabook')->get('defaultAvatar', 'default1.png');
// no avatar
if(empty($source))
return false;
// return default avatar for guests unless gravatar is enabled
if(($message->jid == 0) && ($source != 5)){
return JUri::root().'media/com_vitabook/images/avatars/default/'.$defaultAvatar;
}
// determine links for supported avatar systems
switch ($source)
{
case 1:
// Vitabook built-in avatar system
$path = JPATH_SITE.'/media/com_vitabook/images/avatars/'.$message->jid.'.png';
if(JFile::exists($path)) {
//-- ?filemtime() is workaround for browser-cache
return JUri::root().'media/com_vitabook/images/avatars/'.$message->jid.'.png?'.filemtime($path);
}
break;
case 2:
// Community Builder's avatar system
if(!empty($message->avatar)){
return JUri::root().'images/comprofiler/'.$message->avatar;
}
break;
case 3:
// Kunena's avatar system
if(!empty($message->avatar)){
return JUri::root().'media/kunena/avatars/'.$message->avatar;
}
break;
case 4:
// jomsocial avatar service
if(!empty($message->avatar)){
return JUri::root().$message->avatar;
}
break;
case 5:
// gravatar avatar service
return 'http://www.gravatar.com/avatar/'.md5(strtolower(trim($message->email))).'?d='.urlencode( JUri::root().'media/com_vitabook/images/avatars/default/'.$defaultAvatar );
break;
default:
return false;
}
// return default avatar when no avatar was found
return JUri::root().'media/com_vitabook/images/avatars/default/'.$defaultAvatar;
}
/**
* Method to check if the avatar source is available
* @source avatar source
* @return boolean
*/
public static function checkAvatarSystem($source)
{
switch ($source)
{
case 0:
case 1:
case 5:
return true;
case 2:
return self::checkDbForAvatarSystem('comprofiler');
case 3:
return self::checkDbForAvatarSystem('com_kunena');
case 4:
return self::checkDbForAvatarSystem('com_community');
default:
}
return false;
}
public static function checkDbForAvatarSystem($name)
{
$db = JFactory::getDBO();
$query = $db->getQuery(true);
$query->select('enabled');
$query->from('#__extensions');
$query->where($db->quoteName('name') . ' = ' . $db->quote($name));
$db->setQuery($query);
$installed = $db->loadResult();
if($installed && $installed == 1)
{
return true;
}
return false;
}
public static function getAvailableAvatarSystems()
{
$availableAvatarSystems = array();
foreach (self::$avatarSystems as $nr => $name) {
if(self::checkAvatarSystem($nr)){
$availableAvatarSystems[$nr] = $name;
}
}
return $availableAvatarSystems;
}
}