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-rw-r--r--include/functions_user.inc.php135
1 files changed, 135 insertions, 0 deletions
diff --git a/include/functions_user.inc.php b/include/functions_user.inc.php
index 5f503b36e..cd186183a 100644
--- a/include/functions_user.inc.php
+++ b/include/functions_user.inc.php
@@ -1462,4 +1462,139 @@ function get_recent_photos_sql($db_field)
.pwg_db_get_recent_period_expression($user['recent_period'])
.','.pwg_db_get_recent_period_expression(1,$user['last_photo_date']).')';
}
+
+/**
+ * Performs auto-connection if authentication key is valid.
+ *
+ * @since 2.8
+ *
+ * @return bool
+ */
+function auth_key_login($auth_key)
+{
+ global $conf, $user, $page;
+
+ if ($user['id'] != $conf['guest_id'])
+ {
+ return false;
+ }
+
+ if (!preg_match('/^[a-z0-9]{30}$/i', $auth_key))
+ {
+ return false;
+ }
+
+ $query = '
+SELECT
+ *,
+ '.$conf['user_fields']['username'].' AS username,
+ NOW() AS dbnow
+ FROM '.USER_AUTH_KEYS_TABLE.' AS uak
+ JOIN '.USER_INFOS_TABLE.' AS ui ON uak.user_id = ui.user_id
+ JOIN '.USERS_TABLE.' AS u ON u.'.$conf['user_fields']['id'].' = ui.user_id
+ WHERE auth_key = \''.$auth_key.'\'
+;';
+ $keys = query2array($query);
+
+ if (count($keys) == 0)
+ {
+ return false;
+ }
+
+ $key = $keys[0];
+
+ // is the key still valid?
+ if (strtotime($key['expired_on']) < strtotime($key['dbnow']))
+ {
+ return false;
+ }
+
+ // admin/webmaster/guest can't get connected with authentication keys
+ if (!in_array($key['status'], array('normal','generic')))
+ {
+ return false;
+ }
+
+ $user['id'] = $key['user_id'];
+ log_user($user['id'], false);
+ trigger_notify('login_success', stripslashes($key['username']));
+
+ // to be registered in history table by pwg_log function
+ $page['auth_key_id'] = $key['auth_key_id'];
+
+ return true;
+}
+
+/**
+ * Creates an authentication key.
+ *
+ * @since 2.8
+ * @param int $user_id
+ * @return array
+ */
+function create_user_auth_key($user_id, $user_status=null)
+{
+ global $conf;
+
+ if (0 == $conf['auth_key_duration'])
+ {
+ return false;
+ }
+
+ if (!isset($user_status))
+ {
+ // we have to find the user status
+ $query = '
+SELECT
+ status
+ FROM '.USER_INFOS_TABLE.'
+ WHERE user_id = '.$user_id.'
+;';
+ $user_infos = query2array($query);
+
+ if (count($user_infos) == 0)
+ {
+ return false;
+ }
+
+ $user_status = $user_infos[0]['status'];
+ }
+
+ if (!in_array($user_status, array('normal','generic')))
+ {
+ return false;
+ }
+
+ $candidate = generate_key(30);
+
+ $query = '
+SELECT
+ COUNT(*),
+ NOW(),
+ ADDDATE(NOW(), INTERVAL '.$conf['auth_key_duration'].' SECOND)
+ FROM '.USER_AUTH_KEYS_TABLE.'
+ WHERE auth_key = \''.$candidate.'\'
+;';
+ list($counter, $now, $expiration) = pwg_db_fetch_row(pwg_query($query));
+ if (0 == $counter)
+ {
+ $key = array(
+ 'auth_key' => $candidate,
+ 'user_id' => $user_id,
+ 'created_on' => $now,
+ 'duration' => $conf['auth_key_duration'],
+ 'expired_on' => $expiration,
+ );
+
+ single_insert(USER_AUTH_KEYS_TABLE, $key);
+
+ $key['auth_key_id'] = pwg_db_insert_id();
+
+ return $key;
+ }
+ else
+ {
+ return create_user_auth_key($user_id, $user_status);
+ }
+}
?> \ No newline at end of file