basic auth

libs/auth.php

@@ -0,0 +1,27 @@
+<?php
+    require("../libs/test_secret.php");
+    
+    function auth($token) {
+        if (is_null($token)) return '!guest';
+
+        global $db;
+
+        $stmt = $db->prepare("SELECT * FROM token WHERE token = ?");
+        $stmt->execute([$token]);
+        
+        $result = $stmt->fetch(PDO::FETCH_ASSOC);
+        if (!$result) return '!guest';
+        
+        $username = $result['username'];
+        
+        $stmt = $db->prepare("SELECT * FROM auth WHERE username = ?");
+        $stmt->execute([$username]);
+        
+        $result = $stmt->fetch(PDO::FETCH_ASSOC);
+        if (!$result) return '!guest';
+        
+        return $username;
+    }
+    
+    $username = auth($_COOKIE['token']);
+?>