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<?php
/**
* Elgg profile icon
*
* @package ElggProfile
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Curverider Ltd <info@elgg.com>
* @copyright Curverider Ltd 2008-2009
* @link http://elgg.com/
*/
// Get DB settings, connect
require_once(dirname(dirname(dirname(__FILE__))). '/engine/settings.php');
global $CONFIG;
$contents = '';
if ($mysql_dblink = @mysql_connect($CONFIG->dbhost,$CONFIG->dbuser,$CONFIG->dbpass)) {
$username = $_GET['username'];
//$username = preg_replace('/[^A-Za-z0-9\_\-]/i','',$username);
$blacklist = '/[' .
'\x{0080}-\x{009f}' . # iso-8859-1 control chars
'\x{00a0}' . # non-breaking space
'\x{2000}-\x{200f}' . # various whitespace
'\x{2028}-\x{202f}' . # breaks and control chars
'\x{3000}' . # ideographic space
'\x{e000}-\x{f8ff}' . # private use
']/u';
if (
preg_match($blacklist, $username) ||
(strpos($username, '/')!==false) ||
(strpos($username, '\\')!==false) ||
(strpos($username, '"')!==false) ||
(strpos($username, '\'')!==false) ||
(strpos($username, '*')!==false) ||
(strpos($username, '&')!==false) ||
(strpos($username, ' ')!==false)
) exit;
$userarray = str_split($username);
$matrix = '';
$length = 5;
if (sizeof($userarray) < $length) $length = sizeof($userarray);
for ($n = 0; $n < $length; $n++) {
$matrix .= $userarray[$n] . "/";
}
// Get the size
$size = strtolower($_GET['size']);
if (!in_array($size,array('large','medium','small','tiny','master','topbar')))
$size = "medium";
// Try and get the icon
if (@mysql_select_db($CONFIG->dbname,$mysql_dblink)) {
// get dataroot and simplecache_enabled in one select for efficiency
if ($result = mysql_query("select name, value from {$CONFIG->dbprefix}datalists where name in ('dataroot','simplecache_enabled')",$mysql_dblink)) {
$simplecache_enabled = true;
$row = mysql_fetch_object($result);
while ($row) {
if ($row->name == 'dataroot') {
$dataroot = $row->value;
} else if ($row->name == 'simplecache_enabled') {
$simplecache_enabled = $row->value;
}
$row = mysql_fetch_object($result);
}
}
$filename = $dataroot . $matrix . "{$username}/profile/" . $username . $size . ".jpg";
$contents = @file_get_contents($filename);
}
}
if (empty($contents)) {
global $CONFIG, $viewinput;
$viewinput['view'] = 'icon/user/default/'.$size;
if ($simplecache_enabled) {
ob_start();
include(dirname(dirname(dirname(__FILE__))).'/simplecache/view.php');
$loc = ob_get_clean();
//$contents = @file_get_contents(dirname(__FILE__) . "/graphics/default{$size}.jpg");
} else {
mysql_close($mysql_dblink);
require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php");
$loc = elgg_view($viewinput['view']);
}
header('Location: ' . $loc);
exit;
}
header("Content-type: image/jpeg");
header('Expires: ' . date('r',time() + 864000));
header("Pragma: public");
header("Cache-Control: public");
header("Content-Length: " . strlen($contents));
echo $contents;
?>
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