Initial commit

classes/token.php

@@ -0,0 +1,40 @@
+<?php
+/**
+* Class for creating and deleting tokens
+*/
+class Token
+{
+  public static function new($id, $data, $expire)
+  {
+    global $mysqli;
+    $salt = uniqid(mt_rand(), true);
+    $token = hash('sha256', $seed.$salt);
+    $stmt = $mysqli->prepare("INSERT INTO tokens VALUES(?, ?, ?, ?)");
+    $stmt->bind_param("siis", $token, $id, $expire, $data);
+    $stmt->execute();
+    $query = $stmt->get_result();
+    return $token;
+  }
+
+  public static function validate_token($token, $user, $data)
+  {
+    global $mysqli;
+    $time = time();
+    $stmt = $mysqli->prepare("SELECT count(*) as count, data FROM tokens WHERE token = ? AND user = ? AND expire>=? AND data LIKE ?");
+    $stmt->bind_param("siis", $token, $id, $time, $data);
+    $stmt->execute();
+    $query = $stmt->get_result();
+
+    return $query->fetch_assoc()['count'];
+  }
+
+  public static function delete($token)
+  {
+    global $mysqli;
+    $time = time();
+    $stmt = $mysqli->prepare("DELETE FROM tokens WHERE token = ? OR expire<?");
+    $stmt->bind_param("sd", $token,$time);
+    $stmt->execute();
+    $query = $stmt->get_result();
+  }
+}