commit vendor

vendor/sabre/dav/lib/DAV/Auth/Backend/File.php

@@ -0,0 +1,74 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\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) 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 = [];
+
+    /**
+     * Creates the backend object.
+     *
+     * If the filename argument is passed in, it will parse out the specified file first.
+     *
+     * @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 $filename
+     */
+    public function loadFile($filename)
+    {
+        foreach (file($filename, FILE_IGNORE_NEW_LINES) as $line) {
+            if (2 !== substr_count($line, ':')) {
+                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;
+    }
+}