Initial Release of the calendar plugin

dav/SabreDAV/lib/Sabre/DAV/URLUtil.php

@@ -0,0 +1,121 @@
+<?php
+
+/**
+ * URL utility class
+ *
+ * This class provides methods to deal with encoding and decoding url (percent encoded) strings.
+ *
+ * It was not possible to use PHP's built-in methods for this, because some clients don't like
+ * encoding of certain characters.
+ *
+ * Specifically, it was found that GVFS (gnome's webdav client) does not like encoding of ( and
+ * ). Since these are reserved, but don't have a reserved meaning in url, these characters are
+ * kept as-is.
+ *
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_DAV_URLUtil {
+
+    /**
+     * Encodes the path of a url.
+     *
+     * slashes (/) are treated as path-separators.
+     *
+     * @param string $path
+     * @return string
+     */
+    static function encodePath($path) {
+
+        return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\)\/])/',function($match) {
+
+            return '%'.sprintf('%02x',ord($match[0]));
+
+        }, $path);
+
+    }
+
+    /**
+     * Encodes a 1 segment of a path
+     *
+     * Slashes are considered part of the name, and are encoded as %2f
+     *
+     * @param string $pathSegment
+     * @return string
+     */
+    static function encodePathSegment($pathSegment) {
+
+        return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\)])/',function($match) {
+
+            return '%'.sprintf('%02x',ord($match[0]));
+
+        }, $pathSegment);
+    }
+
+    /**
+     * Decodes a url-encoded path
+     *
+     * @param string $path
+     * @return string
+     */
+    static function decodePath($path) {
+
+        return self::decodePathSegment($path);
+
+    }
+
+    /**
+     * Decodes a url-encoded path segment
+     *
+     * @param string $path
+     * @return string
+     */
+    static function decodePathSegment($path) {
+
+        $path = rawurldecode($path);
+        $encoding = mb_detect_encoding($path, array('UTF-8','ISO-8859-1'));
+
+        switch($encoding) {
+
+            case 'ISO-8859-1' :
+                $path = utf8_encode($path);
+
+        }
+
+        return $path;
+
+    }
+
+    /**
+     * Returns the 'dirname' and 'basename' for a path.
+     *
+     * The reason there is a custom function for this purpose, is because
+     * basename() is locale aware (behaviour changes if C locale or a UTF-8 locale is used)
+     * and we need a method that just operates on UTF-8 characters.
+     *
+     * In addition basename and dirname are platform aware, and will treat backslash (\) as a
+     * directory separator on windows.
+     *
+     * This method returns the 2 components as an array.
+     *
+     * If there is no dirname, it will return an empty string. Any / appearing at the end of the
+     * string is stripped off.
+     *
+     * @param string $path
+     * @return array
+     */
+    static function splitPath($path) {
+
+        $matches = array();
+        if(preg_match('/^(?:(?:(.*)(?:\/+))?([^\/]+))(?:\/?)$/u',$path,$matches)) {
+            return array($matches[1],$matches[2]);
+        } else {
+            return array(null,null);
+        }
+
+    }
+
+}