add jti store

Author: ylebre

lib/JtiStore.php

@@ -0,0 +1,42 @@
+<?php
+	namespace Pdsinterop\PhpSolid;
+	
+	class JtiStore {
+		private static $pdo;
+		private static function connect() {
+			if (!isset(self::$pdo)) {
+				self::$pdo = new \PDO("sqlite:" . DBPATH);
+			}
+		}
+			
+		public static function hasJti($jti) {
+			self::connect();
+			$now = new \DateTime();
+			
+			$query = self::$pdo->prepare(
+				'SELECT jti FROM jti WHERE jti=:jti AND expires>:now'
+			);
+			$query->execute([
+				':jti' => $jti,
+				':now' => $now->getTimestamp()
+			]);
+			$result = $query->fetchAll();
+			if (sizeof($result) === 1) {
+				return true;
+			}
+			return false;
+		}
+		
+		public static function saveJti($jti) {
+			self::connect();
+			$query = self::$pdo->prepare(
+				'INSERT INTO jti VALUES(:jti, :expires)'
+			);
+			$expires = new \DateTime();
+			$expires->add(new \DateInterval("PT1H"));
+			$query->execute([
+				':jti' => $jti,
+				':expires' => $expires->getTimestamp()
+			]);
+		}
+	}