API: Auth implementation

rcc/api/auth/DigestAuth.php

@@ -0,0 +1,52 @@
+<?php
+/**
+ * PHP Version 7
+ *
+ * Authentication Helper Class
+ *
+ * @category Authentication
+ * @package  Rbe
+ * @author   Marcel Kapfer (mmk2410) <marcelmichaelkapfer@yahoo.co.nz>
+ * @license  MIT License
+ * @link     http://marcel-kapfer.de/rangitaki
+ */
+namespace mmk2410\rbe\digestAuth;
+
+/**
+ * PHP Version 7
+ *
+ * Authentication Helper Class
+ *
+ * @category Authentication
+ * @package  Rbe
+ * @author   Marcel Kapfer (mmk2410) <marcelmichaelkapfer@yahoo.co.nz>
+ * @license  MIT License
+ * @link     http://marcel-kapfer.de/rangitaki
+ */
+class DigestAuth
+{
+
+    /**
+     * parser for http digest
+     *
+     * @param $txt  data to parse
+     *
+     * @return parsed data or FALSE
+     */
+    public function httpDigestParse($txt)
+    {
+        // protect against missing data
+        $needed_parts = array('nonce'=>1, 'nc'=>1, 'cnonce'=>1, 'qop'=>1, 'username'=>1, 'uri'=>1, 'response'=>1);
+        $data = array();
+        $keys = implode('|', array_keys($needed_parts));
+
+        preg_match_all('@(' . $keys . ')=(?:([\'"])([^\2]+?)\2|([^\s,]+))@', $txt, $matches, PREG_SET_ORDER);
+
+        foreach ($matches as $m) {
+            $data[$m[1]] = $m[3] ? $m[3] : $m[4];
+            unset($needed_parts[$m[1]]);
+        }
+
+        return $needed_parts ? false : $data;
+    }
+}