/**
* Clean The uri double slashed to single slashed
* eg : http://domain.com//do//this////uri///// to http://domain.com/do/this to prevent much 404 error
* ;/domain.com | :/domain.com | ://domain.com | ;//domain.com to //domain.com
* and replace backslashed to slashed
*
* @param string $uri the url to clean
* @param boolan $replace_space true if you want use replace sache with (+) - plus characters
* @param boolean $use_http true if use http as prefix is possible when url use start as (//)
* @return string $result as clean uri
*/
public static function cleanSlashUri($uri, $replace_space = false, $use_http = false)
{
// if non string stop here return original
if (!is_string($uri) || !$uri) {
return $uri;
}
static $result, $tmpuri = null;
// if uri is same and has result , then will be return as before
if ($result !== null && $tmpuri === $uri) {
return $result;
}
// determine $tmpuri as $uri variables
$tmpuri = $uri;
$query = '';
if (strpos($uri, '?')) {
$explode = explode('?', $uri);
$uri = $explode[0];
if (count($explode) > 1) {
array_shift($explode);
}
$query = '?' . implode('?', $explode);
}
// clean request uri backslashed replaces, remember on windows request uri backslash ( \ ) , is not functions!!
$slashed = preg_replace('/(\\\\)+/', '/', trim($uri));
// clean the protocol;// | protocol//
// or ;// | :// ( this will be only start with ; or : or double slash not single slash (/) or start with etc. )
// hate the loop ! so save it as array variable , this value same as allowed_protocols()
$regex = array('/\\/{3,}/', '/^(:|;)*\\/\\/|^(:|;)\\/+/');
$protocol = array('/', '//');
$result = preg_replace($regex, $protocol, $slashed);
// closure object as callback
$tolowerfix = function ($n) {
$n[0] = str_replace(';', ':', strtolower($n[0]));
$n[0] = preg_replace('/^(.*)\\/\\//', '$1://', $n[0]);
return preg_replace('/\\:{1,}/', ':', $n[0]);
};
/**
* replace unsafe protocols if use ; or multiple : or ;
* eg : http:::::::/www.domain.com | http;//www.domain.com will be http://www.domain.com
* http;/domain.com | http:/domain.com will be http://domain.com
* replace only safe protocol , and make it lower
*/
$regex = '/^(http|https|ftp|ftps|mailto|news|irc|gopher|nntp|feed|telnet|mms|rtsp|svn|tel|fax|xmpp|rtmp)((;|:)*\\/?\\/?)/i';
$result = preg_replace_callback($regex, array($tolowerfix, '__invoke'), $result);
// end
// clean double slash on url after domain
$remslash = function ($c) {
return preg_replace('/((.*)\\:)\\/(\\/)?/', '$1/$3', $c[1]) . preg_replace('/(\\/\\/)+/', '/', $c[4]);
};
$regex = '/^(((.*):)?\\/\\/?)?(.*)/';
$result = preg_replace_callback($regex, array($remslash, '__invoke'), $result);
// end
$result = preg_replace('/^(\\/\\/)?(mailto|xmpp)(\\:)(\\/\\/)?(.*)?/', '$2$3$5', $result);
if ($result[strlen($result) - 1] === '/') {
$result = rtrim($result, '/');
}
if ($replace_space) {
$result = str_replace(' ', '+', $result);
}
if ($use_http === true && preg_match('/^\\/\\//', $result)) {
$result = Server::httpProtocol() . ':' . $result;
}
return $result = $result . $query;
}
/**
* Get Scheme (https or http)
*
* @return string
*/
public static function getScheme()
{
return Server::httpProtocol();
}
