diff --git a/common/functions.php b/common/functions.php
index 154d60455..6840cdcaa 100644
--- a/common/functions.php
+++ b/common/functions.php
@@ -133,6 +133,19 @@ function class_basename($class)
 	return basename(str_replace('\\', '/', is_object($class) ? get_class($class) : $class));
 }
 
+/**
+ * Clean a path to remove ./, ../, trailing slashes, etc.
+ * 
+ * This function is an alias to Rhymix\Framework\Filters\FilenameFilter::cleanPath().
+ * 
+ * @param string $path
+ * @return string
+ */
+function clean_path($path)
+{
+	return Rhymix\Framework\Filters\FilenameFilter::cleanPath($path);
+}
+
 /**
  * This function is a shortcut to htmlspecialchars().
  * 
@@ -337,6 +350,34 @@ function base64_decode_urlsafe($str)
 	return @base64_decode(str_pad(strtr($str, '-_', '+/'), ceil(strlen($str) / 4) * 4, '=', STR_PAD_RIGHT));
 }
 
+/**
+ * Convert a server-side path to a URL.
+ * 
+ * This function is an alias to Rhymix\Framework\URL::fromServerPath().
+ * It returns false if the path cannot be converted.
+ * 
+ * @param string $path
+ * @return string|false
+ */
+function path2url($path)
+{
+	return Rhymix\Framework\URL::fromServerPath($path);
+}
+
+/**
+ * Convert a URL to a server-side path.
+ * 
+ * This function is an alias to Rhymix\Framework\URL::toServerPath().
+ * It returns false if the URL cannot be converted.
+ * 
+ * @param string $url
+ * @return string|false
+ */
+function url2path($url)
+{
+	return Rhymix\Framework\URL::toServerPath($url);
+}
+
 /**
  * Convert hexadecimal color codes to an array of R, G, B values.
  * This function can handle both 6-digit and 3-digit notations, optionally prefixed with '#'.