1 files changed, 77 insertions, 0 deletions
diff --git a/calendar/lib/SabreDAV/lib/OldSabre/DAV/Auth/Backend/File.php b/calendar/lib/SabreDAV/lib/OldSabre/DAV/Auth/Backend/File.php
new file mode 100644
index 0000000..8710832
--- /dev/null
+++ b/calendar/lib/SabreDAV/lib/OldSabre/DAV/Auth/Backend/File.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace OldSabre\DAV\Auth\Backend;
+
+use OldSabre\DAV;
+
+/**
+ * This is an authentication backend that uses a file to manage passwords.
+ *
+ * The backend file must conform to Apache's htdigest format
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends AbstractDigest {
+
+    /**
+     * List of users
+     *
+     * @var array
+     */
+    protected $users = array();
+
+    /**
+     * Creates the backend object.
+     *
+     * If the filename argument is passed in, it will parse out the specified file fist.
+     *
+     * @param string|null $filename
+     */
+    public function __construct($filename=null) {
+
+        if (!is_null($filename))
+            $this->loadFile($filename);
+
+    }
+
+    /**
+     * Loads an htdigest-formatted file. This method can be called multiple times if
+     * more than 1 file is used.
+     *
+     * @param string $filename
+     * @return void
+     */
+    public function loadFile($filename) {
+
+        foreach(file($filename,FILE_IGNORE_NEW_LINES) as $line) {
+
+            if (substr_count($line, ":") !== 2)
+                throw new DAV\Exception('Malformed htdigest file. Every line should contain 2 colons');
+
+            list($username,$realm,$A1) = explode(':',$line);
+
+            if (!preg_match('/^[a-zA-Z0-9]{32}$/', $A1))
+                throw new DAV\Exception('Malformed htdigest file. Invalid md5 hash');
+
+            $this->users[$realm . ':' . $username] = $A1;
+
+        }
+
+    }
+
+    /**
+     * Returns a users' information
+     *
+     * @param string $realm
+     * @param string $username
+     * @return string
+     */
+    public function getDigestHash($realm, $username) {
+
+        return isset($this->users[$realm . ':' . $username])?$this->users[$realm . ':' . $username]:false;
+
+    }
+
+}