+ }
+ /**
+ * When we generate autologin urls:
+ * eg. /Somesite/Test/12
+ * it will generate:
+ * /Somesite/Test/12/{datetime}/{sha256(url + expires_datetime + password)}
+ *
+ * eg. genAutoLoginURL($sub, $expires)
+ */
+ function genAutoLoginURL($url, $expires = false)
+ {
+ $expires = $expires === false ? strtotime("NOW + 1 WEEK") : $expires;
+ //echo serialize(array($url, $expires, $this->email, $this->passwd));
+ //echo hash('sha256', serialize(array($url, $expires, $this->email, $this->passwd)));
+
+ return $url.'/'.$this->id .'/'.$expires.'/'.
+ hash('sha256',
+ serialize(
+ array($url, $expires, $this->email,$this->passwd)
+ )
+ );
+
+ }
+
+ function validateAutoLogin($called)
+ {
+ $bits = explode("/",$called);
+ if (count($bits) < 4) {
+ return false; // unrelated.
+ }
+ $hash = array_pop($bits);
+ $time = array_pop($bits);
+
+ $id = array_pop($bits);
+ if (!is_numeric($time) || !is_numeric($id)) {
+ return false; // wrong format.
+ }
+ $u = DB_DataObject::Factory($this->tableName());
+ $u->get($id);
+ $url = implode("/", $bits);
+ if ($time < time()) {
+ return "Expired";
+ }
+ //echo serialize(array('/'.$url, $time, $u->email, $u->passwd));
+ //echo hash('sha256', serialize(array('/'.$url, $time, $u->email, $u->passwd)));
+ if ($hash == hash('sha256', serialize(array('/'.$url, $time*1, $u->email, $u->passwd)))) {
+ $u->login();
+ return $u;
+ }
+ return false;
+ }
+