1234 lines
28 KiB
PHP
1234 lines
28 KiB
PHP
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<?php
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namespace gp\tool;
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defined('is_running') or die('Not an entry point...');
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gp_defined('gp_lock_time',900); // = 15 minutes
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class Session{
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private static $singleton;
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private $logged_in = false;
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private $session_id;
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private $session_file;
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public static function Init(){
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return self::getInstance();
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}
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/**
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* Get singleton instance
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* @return \gp\tool\Session
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*/
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public static function getInstance(){
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if( !isset(self::$singleton) ){
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self::$singleton = new static();
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}
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return self::$singleton;
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}
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public function __construct(){
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self::SetConstants();
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if( isset($_COOKIE[gp_session_cookie]) ){
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self::CheckPosts();
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$this->Start($_COOKIE[gp_session_cookie]);
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}
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$cmd = \gp\tool::GetCommand();
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switch( $cmd ){
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case 'logout':
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$this->LogOut();
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return;
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case 'login':
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$this->LogIn();
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return;
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}
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if( $this->logged_in ){
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$this->Prepare();
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}
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if( $cmd === 'ClearErrors' ){
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self::ClearErrors();
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}
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}
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public static function SetConstants(){
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global $config;
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gp_defined('gp_session_cookie',self::SessionCookie($config['gpuniq']));
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gp_defined('gp_installation_cookie',self::SessionCookie('g-'.$config['gpuniq']));
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}
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public function LogIn(){
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global $langmessage;
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if( $this->logged_in ){
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return;
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}
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// check nonce
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// expire the nonce after 10 minutes
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$nonce = $_POST['login_nonce'];
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if( !\gp\tool\Nonce::Verify('login_nonce', $nonce, true, 300) ){
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msg($langmessage['OOPS'] . ' (Expired Nonce)');
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return;
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}
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if( !self::HasCookies() ){
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msg($langmessage['COOKIES_REQUIRED']);
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return false;
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}
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//delete the entry in $sessions if we're going to create another one with login
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if( isset($_COOKIE[gp_session_cookie]) ){
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self::CleanSession($_COOKIE[gp_session_cookie]);
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}
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$users = \gp\tool\Files::Get('_site/users');
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$username = self::GetLoginUser($users, $nonce);
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if( $username === false ){
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self::IncorrectLogin('1');
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return false;
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}
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$users[$username] += array(
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'attempts' => 0,
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'granted' => '', // 'editing' will be set EditingValue()
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);
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$userinfo = $users[$username];
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//Check Attempts
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if( $userinfo['attempts'] >= 5 ){
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$timeDiff = (time() - $userinfo['lastattempt']) / 60; //minutes
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if( $timeDiff < 10 ){
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msg($langmessage['LOGIN_BLOCK'], ceil(10 - $timeDiff));
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return false;
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}
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}
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//check against password sent to a user's email address from the forgot_password form
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$passed = self::PasswordPassed($userinfo, $nonce);
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//if passwords don't match
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if( $passed !== true ){
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self::IncorrectLogin('2');
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self::UpdateAttempts($users, $username);
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return false;
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}
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//will be saved in UpdateAttempts
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if( isset($userinfo['newpass']) ){
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unset($userinfo['newpass']);
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}
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$session_id = self::create($userinfo, $username, $sessions);
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if( !$session_id ){
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msg($langmessage['OOPS'] . ' (Data Not Saved)');
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self::UpdateAttempts($users, $username, true);
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return false;
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}
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if( $this->Start($session_id, $sessions) ){
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msg($langmessage['logged_in']);
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}
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//need to save the user info regardless of success or not
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//also saves file_name in users.php
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$users[$username] = $userinfo;
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self::UpdateAttempts($users, $username, true);
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//redirect to prevent resubmission
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$this->Redirect();
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}
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/**
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* Return true if we can confirm there are cookies
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* Return false and attempt to set a cookie otherwise
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*
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*/
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public static function HasCookies(){
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global $config;
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self::SetConstants();
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if( array_key_exists(gp_session_cookie, $_COOKIE) ||
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array_key_exists(gp_installation_cookie, $_COOKIE)
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){
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return true;
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}
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\gp\tool\Session::cookie(gp_installation_cookie,'2');
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return false;
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}
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/**
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* Redirect user after login
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*
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*/
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public function Redirect(){
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global $gp_index;
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if( !$this->logged_in ){
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return;
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}
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$redirect = false;
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if( isset($_REQUEST['file']) ){
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$redirect = \gp\tool::ArrayKey($_REQUEST['file'], $gp_index );
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}
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if( $redirect === false ){
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$redirect = 'Admin';
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}
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$url = \gp\tool::GetUrl($redirect, '', false);
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\gp\tool::Redirect($url);
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}
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/**
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* Return the username for the login request
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*
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*/
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public static function GetLoginUser( $users, $nonce ){
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$_POST += array(
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'user_sha' => '',
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'username' => '',
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'login_nonce' => '',
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);
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if( gp_require_encrypt && empty($_POST['user_sha']) ){
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return false;
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}
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foreach($users as $username => $info){
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$sha_user = sha1($nonce.$username);
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if( !gp_require_encrypt
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&& !empty($_POST['username'])
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&& $_POST['username'] == $username
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){
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return $username;
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}
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if( $sha_user === $_POST['user_sha'] ){
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return $username;
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}
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}
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return false;
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}
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/**
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* Check the posted password
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* Check against reset password if set
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*
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*/
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public static function PasswordPassed(&$userinfo, $nonce){
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if( gp_require_encrypt && !empty($_POST['password']) ){
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return false;
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}
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//if not encrypted with js
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if( !empty($_POST['password']) ){
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$_POST['pass_md5'] = sha1($nonce . md5($_POST['password']));
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$_POST['pass_sha'] = sha1($nonce . sha1($_POST['password']));
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$_POST['pass_sha512'] = \gp\tool::hash($_POST['password'], 'sha512', 50);
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}
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$pass_algo = self::PassAlgo($userinfo);
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if( !empty($userinfo['newpass']) && self::CheckPassword($userinfo['newpass'], $nonce, $pass_algo) ){
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$userinfo['password'] = $userinfo['newpass'];
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return true;
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}
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//check password
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if( self::CheckPassword($userinfo['password'], $nonce, $pass_algo) ){
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return true;
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}
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return false;
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}
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/**
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* Return the algorithm used by the user for passwords
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*
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*/
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public static function PassAlgo($userinfo){
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global $config;
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if( isset($userinfo['passhash']) ){
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return $userinfo['passhash'];
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}
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return $config['passhash'];
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}
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/**
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* Check password, choose between plaintext, md5 encrypted or sha-1 encrypted
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* @param string $user_pass
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* @param string $nonce
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* @param string $pass_algo Password hashing algorithm
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*
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*/
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public static function CheckPassword($user_pass, $nonce, $pass_algo){
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global $config;
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$posted_pass = false;
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switch($pass_algo){
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case 'md5':
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$posted_pass = $_POST['pass_md5'];
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$user_pass = sha1($nonce . $user_pass);
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break;
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case 'sha1':
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$posted_pass = $_POST['pass_sha'];
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$user_pass = sha1($nonce . $user_pass);
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break;
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case 'sha512':
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//javascript only loops through sha512 50 times
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$posted_pass = \gp\tool::hash($_POST['pass_sha512'], 'sha512', 950);
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break;
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case 'password_hash':
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if( !function_exists('password_verify') ){
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msg('This version of PHP does not have password_verify(). '
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. 'To fix, reset your password at /Admin_Preferences and '
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. 'select "sha512" for the "Password Algorithm"');
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return false;
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}
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return password_verify($_POST['pass_sha512'], $user_pass);
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}
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if( $posted_pass && $posted_pass === $user_pass ){
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return true;
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}
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return false;
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}
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public static function IncorrectLogin($i){
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global $langmessage;
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msg($langmessage['incorrect_login'] . ' (' . $i . ')');
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$url = \gp\tool::GetUrl('Admin', 'cmd=forgotten');
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msg($langmessage['forgotten_password'], $url);
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}
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/**
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* Set the value of $userinfo['file_name']
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*
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*/
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public static function SetSessionFileName($userinfo,$username){
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global $dataDir;
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if( isset($userinfo['file_name']) ){
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return $userinfo;
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}
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do{
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$new_file_name = 'gpsess_' . \gp\tool::RandomString(40) . '.php';
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$new_file = $dataDir . '/data/_sessions/' . $new_file_name;
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}while( \gp\tool\Files::Exists($new_file) );
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$userinfo['file_name'] = $new_file_name;
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return $userinfo;
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}
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public function LogOut(){
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global $langmessage;
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if( empty($_GET['verified']) ){
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return;
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}
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if( !\gp\tool\Nonce::Verify('post', $_GET['verified'], true) ){
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return;
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}
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if( !$this->logged_in ){
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return false;
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}
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if( !isset($_COOKIE[gp_session_cookie]) ){
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return false;
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}
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$session_id = $_COOKIE[gp_session_cookie];
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self::Unlock($session_id);
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self::cookie(gp_session_cookie);
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self::CleanSession($session_id);
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$this->logged_in = false;
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msg($langmessage['LOGGED_OUT']);
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}
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/**
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* Remove the admin session lock
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*
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*/
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public static function Unlock($session_id){
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return \gp\tool\Files::Unlock('admin', sha1(sha1($session_id)));
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}
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public static function CleanSession($session_id){
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//remove the session_id from session_ids.php
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$sessions = self::GetSessionIds();
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unset($sessions[$session_id]);
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self::SaveSessionIds($sessions);
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}
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/**
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* Set a session cookie
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* Attempt to use httponly if available
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*
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*/
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|
|
public static function Cookie($name, $value='', $expires = false){
|
||
|
|
global $dirPrefix;
|
||
|
|
|
||
|
|
$cookiePath = empty($dirPrefix) ? '/' : $dirPrefix;
|
||
|
|
$cookiePath = \gp\tool::HrefEncode($cookiePath, false);
|
||
|
|
$secure = (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on');
|
||
|
|
$domain = \gp\tool::ServerName(true);
|
||
|
|
|
||
|
|
if( !$domain || strpos($domain, '.') === false ){
|
||
|
|
$domain = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
if( strpos($domain, ':') !== false ){
|
||
|
|
$domain = substr($domain, 0, strrpos($domain, ':'));
|
||
|
|
}
|
||
|
|
|
||
|
|
// expire if value is empty
|
||
|
|
// cookies are set with either www removed from the domain or with an empty string
|
||
|
|
if( empty($value) ){
|
||
|
|
$expires = time()-2592000;
|
||
|
|
setcookie($name, $value, $expires, $cookiePath, $domain, $secure, true);
|
||
|
|
setcookie($name, $value, $expires, $cookiePath, $domain, false, true);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// get expiration and set
|
||
|
|
if( $expires === false ){
|
||
|
|
$expires = time()+2592000; //30 days
|
||
|
|
}elseif( $expires === true ){
|
||
|
|
$expires = 0; //expire at end of session
|
||
|
|
}
|
||
|
|
|
||
|
|
setcookie($name, $value, $expires, $cookiePath, $domain, $secure, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update the number of login attempts and the time of the last attempt for a $username
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function UpdateAttempts($users,$username,$reset = false){
|
||
|
|
if( $reset ){
|
||
|
|
$users[$username]['attempts'] = 0;
|
||
|
|
}else{
|
||
|
|
$users[$username]['attempts']++;
|
||
|
|
}
|
||
|
|
$users[$username]['lastattempt'] = time();
|
||
|
|
\gp\tool\Files::SaveData('_site/users', 'users', $users);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* called when a user logs in
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function create(&$user_info, $username, &$sessions){
|
||
|
|
global $dataDir, $langmessage;
|
||
|
|
|
||
|
|
//update the session files to .php files
|
||
|
|
//changes to $userinfo will be saved by UpdateAttempts() below
|
||
|
|
$user_info = self::SetSessionFileName($user_info, $username);
|
||
|
|
$user_file_name = $user_info['file_name'];
|
||
|
|
$user_file = $dataDir . '/data/_sessions/' . $user_file_name;
|
||
|
|
|
||
|
|
|
||
|
|
//use an existing session_id if the new login matches an existing session (uid and file_name)
|
||
|
|
$sessions = self::GetSessionIds();
|
||
|
|
$uid = self::auth_browseruid();
|
||
|
|
$session_id = false;
|
||
|
|
foreach($sessions as $sess_temp_id => $sess_temp_info){
|
||
|
|
if( isset($sess_temp_info['uid']) &&
|
||
|
|
$sess_temp_info['uid'] == $uid &&
|
||
|
|
$sess_temp_info['file_name'] == $user_file_name
|
||
|
|
){
|
||
|
|
$session_id = $sess_temp_id;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//create a unique session id if needed
|
||
|
|
if( $session_id === false ){
|
||
|
|
do{
|
||
|
|
$session_id = \gp\tool::RandomString(40);
|
||
|
|
}while( isset($sessions[$session_id]) );
|
||
|
|
}
|
||
|
|
|
||
|
|
$expires = !isset($_POST['remember']);
|
||
|
|
self::cookie(gp_session_cookie, $session_id, $expires);
|
||
|
|
|
||
|
|
//save session id
|
||
|
|
$sessions[$session_id] = array();
|
||
|
|
$sessions[$session_id]['file_name'] = $user_file_name;
|
||
|
|
$sessions[$session_id]['uid'] = $uid;
|
||
|
|
//$sessions[$session_id]['time'] = time(); //for session locking
|
||
|
|
if( !self::SaveSessionIds($sessions) ){
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
//make sure the user's file exists
|
||
|
|
$new_data = self::SessionData($user_file,$checksum);
|
||
|
|
$new_data['username'] = $username;
|
||
|
|
$new_data['granted'] = $user_info['granted'];
|
||
|
|
|
||
|
|
if( isset($user_info['editing']) ){
|
||
|
|
$new_data['editing'] = $user_info['editing'];
|
||
|
|
}
|
||
|
|
\gp\admin\Tools::EditingValue($new_data);
|
||
|
|
|
||
|
|
// may needt to extend the cookie life later
|
||
|
|
if( isset($_POST['remember']) ){
|
||
|
|
$new_data['remember'] = time();
|
||
|
|
}else{
|
||
|
|
unset($new_data['remember']);
|
||
|
|
}
|
||
|
|
|
||
|
|
\gp\tool\Files::SaveData($user_file, 'gpAdmin', $new_data);
|
||
|
|
return $session_id;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the contents of the session_ids.php data file
|
||
|
|
* @return array array of all sessions
|
||
|
|
*/
|
||
|
|
public static function GetSessionIds(){
|
||
|
|
return \gp\tool\Files::Get('_site/session_ids', 'sessions');
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Save $sessions to the session_ids.php data file
|
||
|
|
* @param $sessions array array of all sessions
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public static function SaveSessionIds($sessions){
|
||
|
|
|
||
|
|
while( $current = current($sessions) ){
|
||
|
|
$key = key($sessions);
|
||
|
|
|
||
|
|
//delete if older than
|
||
|
|
if( isset($current['time']) && $current['time'] > 0 && ($current['time'] < (time() - 1209600)) ){
|
||
|
|
//if( $current['time'] < time() - 2592000 ){ //one month
|
||
|
|
unset($sessions[$key]);
|
||
|
|
$continue = true;
|
||
|
|
}else{
|
||
|
|
next($sessions);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//clean
|
||
|
|
return \gp\tool\Files::SaveData('_site/session_ids', 'sessions', $sessions);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if $session_id represents a valid session and if so start the session
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public function Start($session_id, $sessions = false ){
|
||
|
|
global $langmessage, $dataDir;
|
||
|
|
|
||
|
|
//get the session file
|
||
|
|
if( !$sessions ){
|
||
|
|
$sessions = self::GetSessionIds();
|
||
|
|
if( !isset($sessions[$session_id]) ){
|
||
|
|
self::cookie(gp_session_cookie); //make sure the cookie is deleted
|
||
|
|
msg($langmessage['Session Expired'] . ' (timeout)');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$sess_info = $sessions[$session_id];
|
||
|
|
|
||
|
|
//check ~ip, ~user agent ...
|
||
|
|
if( gp_browser_auth && !empty($sess_info['uid']) ){
|
||
|
|
|
||
|
|
$auth_uid = self::auth_browseruid();
|
||
|
|
|
||
|
|
if( $sess_info['uid'] != $auth_uid ){
|
||
|
|
self::cookie(gp_session_cookie); //make sure the cookie is deleted
|
||
|
|
msg($langmessage['Session Expired'] . ' (browser auth)');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$session_file = $dataDir . '/data/_sessions/' . $sess_info['file_name'];
|
||
|
|
if( ($session_file === false) || !\gp\tool\Files::Exists($session_file) ){
|
||
|
|
self::cookie(gp_session_cookie); //make sure the cookie is deleted
|
||
|
|
msg($langmessage['Session Expired'] . ' (invalid)');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->session_id = $session_id;
|
||
|
|
$this->session_file = $session_file;
|
||
|
|
$this->logged_in = true;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
public function Prepare(){
|
||
|
|
global $langmessage, $wbMessageBuffer;
|
||
|
|
static $locked_message = false;
|
||
|
|
|
||
|
|
//prevent browser caching when editing
|
||
|
|
Header( 'Last-Modified: ' . gmdate( 'D, j M Y H:i:s' ) . ' GMT' );
|
||
|
|
Header( 'Expires: ' . gmdate( 'D, j M Y H:i:s', time() ) . ' GMT' );
|
||
|
|
Header( 'Cache-Control: no-store, no-cache, must-revalidate'); // HTTP/1.1
|
||
|
|
Header( 'Cache-Control: post-check=0, pre-check=0', false );
|
||
|
|
Header( 'Pragma: no-cache' ); // HTTP/1.0
|
||
|
|
|
||
|
|
$GLOBALS['gpAdmin'] = self::SessionData($this->session_file,$checksum);
|
||
|
|
|
||
|
|
//lock to prevent conflicting edits
|
||
|
|
if( gp_lock_time > 0 &&
|
||
|
|
( !empty($GLOBALS['gpAdmin']['editing']) || !empty($GLOBALS['gpAdmin']['granted']) )
|
||
|
|
){
|
||
|
|
$expires = gp_lock_time;
|
||
|
|
if( !\gp\tool\Files::Lock('admin', sha1(sha1($this->session_id)), $expires) ){
|
||
|
|
msg($langmessage['site_locked'] . ' ' . sprintf($langmessage['lock_expires_in'], ceil($expires / 60)));
|
||
|
|
$locked_message = true;
|
||
|
|
$GLOBALS['gpAdmin']['locked'] = true;
|
||
|
|
}else{
|
||
|
|
unset($GLOBALS['gpAdmin']['locked']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//extend cookie?
|
||
|
|
if( isset($GLOBALS['gpAdmin']['remember']) ){
|
||
|
|
$elapsed = time() - $GLOBALS['gpAdmin']['remember'];
|
||
|
|
if( $elapsed > 604800 ){ //7 days
|
||
|
|
$GLOBALS['gpAdmin']['remember'] = time();
|
||
|
|
self::cookie(gp_session_cookie, $this->session_id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
register_shutdown_function(array('\\gp\\tool\\Session', 'close'), $this->session_file, $checksum);
|
||
|
|
|
||
|
|
//make sure forms have admin nonce
|
||
|
|
ob_start(array('\\gp\\tool\\Session', 'AdminBuffer'));
|
||
|
|
|
||
|
|
\gp\tool\Output::$lang_values += array(
|
||
|
|
'cancel' => 'ca',
|
||
|
|
'update' => 'up',
|
||
|
|
'caption' => 'cp',
|
||
|
|
'Width' => 'Width',
|
||
|
|
'Height' => 'Height',
|
||
|
|
'save' => 'Save',
|
||
|
|
'Saved' => 'Saved',
|
||
|
|
'Saving' => 'Saving',
|
||
|
|
'Close' => 'Close',
|
||
|
|
'Page' => 'Page',
|
||
|
|
'theme_content' => 'Extra',
|
||
|
|
'Publish Draft' => 'PublishDraft',
|
||
|
|
'Publish' => 'Publish',
|
||
|
|
'Dismiss' => 'Dismiss',
|
||
|
|
'Dismiss Draft' => 'DismissDraft',
|
||
|
|
'Select Image' => 'SelectImage',
|
||
|
|
'edit' => 'edit',
|
||
|
|
'Expand Editor' => 'ExpandEditor',
|
||
|
|
'Shrink Editor' => 'ShrinkEditor',
|
||
|
|
'Hide Admin UI' => 'HideAdminUI',
|
||
|
|
'Show Admin UI' => 'ShowAdminUI',
|
||
|
|
'options' => 'options',
|
||
|
|
'Copy' => 'Copy',
|
||
|
|
'Copy to Clipboard' => 'CopyToClipboard',
|
||
|
|
'Manage Sections' => 'ManageSections',
|
||
|
|
'Sections' => 'Sections',
|
||
|
|
'Section Attributes' => 'SectionAttributes',
|
||
|
|
'Available Classes' => 'AvailableClasses',
|
||
|
|
'Attribute' => 'Attribute',
|
||
|
|
'Add Attribute' => 'AddAttribute',
|
||
|
|
'Value' => 'Value',
|
||
|
|
'Visibility' => 'Visibility',
|
||
|
|
'remove' => 'remove',
|
||
|
|
'delete' => 'del',
|
||
|
|
'Move Behind' => 'MoveBehind',
|
||
|
|
'Section %s' => 'Section',
|
||
|
|
'generic_delete_confirm' => 'generic_delete_confirm',
|
||
|
|
'Ctrl Key' => 'ctrlKey',
|
||
|
|
'Shift Key' => 'shiftKey',
|
||
|
|
'Alt Key' => 'altKey',
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
\gp\tool::LoadComponents('sortable, autocomplete, gp-admin, gp-admin-css, fontawesome, popper');
|
||
|
|
\gp\admin\Tools::VersionsAndCheckTime();
|
||
|
|
|
||
|
|
|
||
|
|
\gp\tool\Output::$inline_vars += array(
|
||
|
|
'gpRem' => \gp\admin\Tools::CanRemoteInstall(),
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
//prepend messages from message buffer
|
||
|
|
if( isset($GLOBALS['gpAdmin']['message_buffer']) && count($GLOBALS['gpAdmin']['message_buffer']) ){
|
||
|
|
$wbMessageBuffer = array_merge($GLOBALS['gpAdmin']['message_buffer'], $wbMessageBuffer);
|
||
|
|
unset($GLOBALS['gpAdmin']['message_buffer']);
|
||
|
|
}
|
||
|
|
|
||
|
|
//alias
|
||
|
|
if( isset($_COOKIE['gp_alias']) ){
|
||
|
|
$GLOBALS['gpAdmin']['useralias'] = $_COOKIE['gp_alias'];
|
||
|
|
}else{
|
||
|
|
$GLOBALS['gpAdmin']['useralias'] = $GLOBALS['gpAdmin']['username'];
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Perform admin only changes to the content buffer
|
||
|
|
* This will happen before \gp\tool\Output::BufferOut()
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function AdminBuffer($buffer){
|
||
|
|
global $wbErrorBuffer, $gp_admin_html;
|
||
|
|
|
||
|
|
//add $gp_admin_html to the document
|
||
|
|
if( strpos($buffer, '<!-- get_head_placeholder ' . gp_random . ' -->') !== false ){
|
||
|
|
$buffer = \gp\tool\Output::AddToBody(
|
||
|
|
$buffer,
|
||
|
|
'<div id="gp_admin_html">'
|
||
|
|
. $gp_admin_html . \gp\tool\Output::$editlinks
|
||
|
|
. '</div><div id="gp_admin_fixed"></div>'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add a generic admin nonce field to each post form
|
||
|
|
// Admin nonces are also added with javascript if needed
|
||
|
|
$count = preg_match_all('#<form[^<>]*method=[\'"]post[\'"][^<>]*>#i', $buffer, $matches);
|
||
|
|
if( $count ){
|
||
|
|
$nonce = \gp\tool\Nonce::Create('post',true);
|
||
|
|
$matches[0] = array_unique($matches[0]);
|
||
|
|
foreach($matches[0] as $match){
|
||
|
|
|
||
|
|
//make sure it's a local action
|
||
|
|
if( preg_match('#action=[\'"]([^\'"]+)[\'"]#i', $match, $sub_matches) ){
|
||
|
|
$action = $sub_matches[1];
|
||
|
|
if( substr($action, 0, 2) === '//' ){
|
||
|
|
continue;
|
||
|
|
}elseif( strpos($action, '://') ){
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$replacement = '<input type="hidden" name="verified" value="' . $nonce . '"/>';
|
||
|
|
$pos = strpos($buffer,$match)+strlen($match);
|
||
|
|
$buffer = substr_replace($buffer, $replacement, $pos, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $buffer;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the session data from a user session file
|
||
|
|
* @param string $session_file The full path to the user's session file
|
||
|
|
* @param string $checksum
|
||
|
|
* @return array The user's session data
|
||
|
|
*/
|
||
|
|
public static function SessionData($session_file, &$checksum){
|
||
|
|
|
||
|
|
$gpAdmin = \gp\tool\Files::Get($session_file, 'gpAdmin');
|
||
|
|
|
||
|
|
$checksum = '';
|
||
|
|
|
||
|
|
if( isset($gpAdmin['checksum']) ){
|
||
|
|
$checksum = $gpAdmin['checksum'];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $gpAdmin + self::gpui_defaults();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
public static function gpui_defaults(){
|
||
|
|
return array(
|
||
|
|
'gpui_cmpct' => 0,
|
||
|
|
'gpui_tx' => 10,
|
||
|
|
'gpui_ty' => 39,
|
||
|
|
'gpui_ckx' => 20,
|
||
|
|
'gpui_cky' => 240,
|
||
|
|
'gpui_exp' => 1,
|
||
|
|
'gpui_vis' => 'cur',
|
||
|
|
'gpui_thw' => 250,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prevent XSS attacks for logged in users by
|
||
|
|
* making sure the request contains a valid nonce
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function CheckPosts(){
|
||
|
|
|
||
|
|
if( count($_POST) == 0 ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( empty($_POST['verified']) ){
|
||
|
|
self::StripPost('XSS Verification Parameter Error');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( !\gp\tool\Nonce::Verify('post', $_POST['verified'], true) ){
|
||
|
|
self::StripPost('XSS Verification Parameter Mismatch');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset all $_POST values
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function StripPost($message){
|
||
|
|
global $langmessage, $post_quarantine;
|
||
|
|
msg($langmessage['OOPS'] . ' (' . $message . ')');
|
||
|
|
$post_quarantine = $_POST;
|
||
|
|
foreach($_POST as $key => $value){
|
||
|
|
unset($_POST[$key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Save any changes to the $gpAdmin array
|
||
|
|
* @param string $file Session file path
|
||
|
|
* @param string $checksum_read The original checksum of the $gpAdmin array
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function Close($file, $checksum_read){
|
||
|
|
global $gpAdmin;
|
||
|
|
|
||
|
|
self::FatalNotices();
|
||
|
|
self::Cron();
|
||
|
|
self::LayoutInfo();
|
||
|
|
|
||
|
|
unset($gpAdmin['checksum']);
|
||
|
|
$checksum = \gp\tool::ArrayHash($gpAdmin);
|
||
|
|
|
||
|
|
//nothing changed
|
||
|
|
if( $checksum === $checksum_read ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if( !isset($gpAdmin['username']) ){
|
||
|
|
trigger_error('username not set');
|
||
|
|
die();
|
||
|
|
}
|
||
|
|
|
||
|
|
$gpAdmin['checksum'] = $checksum; //store the new checksum
|
||
|
|
\gp\tool\Files::SaveData($file, 'gpAdmin', $gpAdmin);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Update layout information if needed
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function LayoutInfo(){
|
||
|
|
global $page, $gpLayouts, $get_all_gadgets_called;
|
||
|
|
|
||
|
|
if( !\gp\tool\Output::$template_included ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$layout = $page->gpLayout;
|
||
|
|
if( !isset($gpLayouts[$layout]) ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$layout_info =& $gpLayouts[$layout];
|
||
|
|
|
||
|
|
//template.php file not modified
|
||
|
|
$template_file = realpath($page->theme_dir . '/template.php');
|
||
|
|
$template_mod = filemtime($template_file);
|
||
|
|
if( isset($layout_info['template_mod']) && $layout_info['template_mod'] >= $template_mod ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$contents = ob_get_contents();
|
||
|
|
|
||
|
|
//charset
|
||
|
|
if( strpos($contents, 'charset=') === false ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//get just the head of the buffer to see if we need to add charset
|
||
|
|
$pos = strpos($contents, '</head');
|
||
|
|
unset($layout_info['doctype']);
|
||
|
|
if( $pos > 0 ){
|
||
|
|
$head = substr($contents, 0, $pos);
|
||
|
|
$layout_info['doctype'] = self::DoctypeMeta($head);
|
||
|
|
}
|
||
|
|
$layout_info['all_gadgets'] = $get_all_gadgets_called;
|
||
|
|
|
||
|
|
//save
|
||
|
|
$layout_info['template_mod'] = $template_mod;
|
||
|
|
\gp\admin\Tools::SavePagesPHP();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if CMS needs to add a <meta charset> tag
|
||
|
|
* Look at the beginning of the document to see what kind of doctype the current template is using
|
||
|
|
* See http://www.w3schools.com/tags/tag_doctype.asp for description of different doctypes
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function DoctypeMeta($doc_start){
|
||
|
|
|
||
|
|
//charset already set
|
||
|
|
if( stripos($doc_start,'charset=') !== false ){
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// html5
|
||
|
|
// spec states this should be "the first element child of the head element"
|
||
|
|
if( stripos($doc_start, '<!doctype html>') !== false ){
|
||
|
|
return '<meta charset="UTF-8" />';
|
||
|
|
}
|
||
|
|
return '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Perform regular tasks
|
||
|
|
* Once an hour only when admin is logged in
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function Cron(){
|
||
|
|
$cron_info = \gp\tool\Files::Get('_site/cron_info');
|
||
|
|
$file_stats = \gp\tool\Files::$last_stats;
|
||
|
|
|
||
|
|
$file_stats += array('modified' => 0);
|
||
|
|
if( (time() - $file_stats['modified']) < 3600 ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
self::CleanTemp();
|
||
|
|
\gp\tool\Files::SaveData('_site/cron_info', 'cron_info', $cron_info);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clean old files and folders from the temporary folder
|
||
|
|
* Delete after 36 hours (129600 seconds)
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function CleanTemp(){
|
||
|
|
global $dataDir;
|
||
|
|
$temp_folder = $dataDir . '/data/_temp';
|
||
|
|
$files = \gp\tool\Files::ReadDir($temp_folder, false);
|
||
|
|
foreach($files as $file){
|
||
|
|
if( $file == 'index.html'){
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$full_path = $temp_folder . '/' . $file;
|
||
|
|
$mtime = (int)filemtime($full_path);
|
||
|
|
$diff = time() - $mtime;
|
||
|
|
if( $diff < 129600 ){
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
\gp\tool\Files::RmAll($full_path);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output the UI variables as a Javascript Object
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function GPUIVars(){
|
||
|
|
global $gpAdmin, $page, $config;
|
||
|
|
|
||
|
|
$defaults = self::gpui_defaults();
|
||
|
|
$js = array();
|
||
|
|
|
||
|
|
foreach($defaults as $key => $value){
|
||
|
|
if( isset($gpAdmin[$key]) ){
|
||
|
|
$value = $gpAdmin[$key];
|
||
|
|
}
|
||
|
|
$renamed_key = substr($key, 5);
|
||
|
|
$js[$renamed_key] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
//default layout (admin layout)
|
||
|
|
if( $page->gpLayout && $page->gpLayout == $config['gpLayout'] ){
|
||
|
|
$js['dlayout'] = true;
|
||
|
|
}else{
|
||
|
|
$js['dlayout'] = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
echo 'var gpui=' . json_encode($js) . ';';
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Code modified from dokuwiki
|
||
|
|
* /dokuwiki/inc/auth.php
|
||
|
|
*
|
||
|
|
* Builds a pseudo UID from browser and IP data
|
||
|
|
*
|
||
|
|
* This is neither unique nor unfakable - still it adds some
|
||
|
|
* security. Using the first part of the IP makes sure
|
||
|
|
* proxy farms like AOLs are stil okay.
|
||
|
|
*
|
||
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
||
|
|
*
|
||
|
|
* @return string a MD5 sum of various browser headers
|
||
|
|
*/
|
||
|
|
public static function auth_browseruid(){
|
||
|
|
|
||
|
|
$uid = '';
|
||
|
|
if( isset($_SERVER['HTTP_USER_AGENT']) ){
|
||
|
|
$uid .= $_SERVER['HTTP_USER_AGENT'];
|
||
|
|
}
|
||
|
|
if( isset($_SERVER['HTTP_ACCEPT_ENCODING']) ){
|
||
|
|
$uid .= $_SERVER['HTTP_ACCEPT_ENCODING'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if( isset($_SERVER['HTTP_ACCEPT_CHARSET']) ){
|
||
|
|
$uid .= $_SERVER['HTTP_ACCEPT_CHARSET'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$ip = self::clientIP();
|
||
|
|
$uid .= substr($ip, 0, strpos($ip, '.'));
|
||
|
|
|
||
|
|
//ie8 will report ACCEPT_LANGUAGE as en-us and en-US depending on the type of request (normal, ajax)
|
||
|
|
$uid = strtolower($uid);
|
||
|
|
|
||
|
|
return md5($uid);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the IP of the client
|
||
|
|
* Modified from ClientIP method in Dokuwiki
|
||
|
|
*
|
||
|
|
* Honours X-Forwarded-For and X-Real-IP Proxy Headers
|
||
|
|
*
|
||
|
|
* Tries to return a routable public address, prefering the ones suplied in the X headers
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function ClientIP(){
|
||
|
|
$ips = [];
|
||
|
|
|
||
|
|
$add_ip = function($ips, $ip_key){
|
||
|
|
|
||
|
|
if( !isset($_SERVER[$ip_key]) ){
|
||
|
|
return $ips;
|
||
|
|
}
|
||
|
|
|
||
|
|
// some IPv4/v6 regexps borrowed from Feyd
|
||
|
|
// see: http://forums.devnetwork.net/viewtopic.php?f=38&t=53479
|
||
|
|
$dec_octet = '(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|[0-9])';
|
||
|
|
$hex_digit = '[A-Fa-f0-9]';
|
||
|
|
$h16 = "{$hex_digit}{1,4}";
|
||
|
|
$IPv4Address = "$dec_octet\\.$dec_octet\\.$dec_octet\\.$dec_octet";
|
||
|
|
$ls32 = "(?:$h16:$h16|$IPv4Address)";
|
||
|
|
$IPv6Address =
|
||
|
|
"(?:(?:{$IPv4Address})|(?:".
|
||
|
|
"(?:$h16:){6}$ls32" .
|
||
|
|
"|::(?:$h16:){5}$ls32" .
|
||
|
|
"|(?:$h16)?::(?:$h16:){4}$ls32" .
|
||
|
|
"|(?:(?:$h16:){0,1}$h16)?::(?:$h16:){3}$ls32" .
|
||
|
|
"|(?:(?:$h16:){0,2}$h16)?::(?:$h16:){2}$ls32" .
|
||
|
|
"|(?:(?:$h16:){0,3}$h16)?::(?:$h16:){1}$ls32" .
|
||
|
|
"|(?:(?:$h16:){0,4}$h16)?::$ls32" .
|
||
|
|
"|(?:(?:$h16:){0,5}$h16)?::$h16" .
|
||
|
|
"|(?:(?:$h16:){0,6}$h16)?::" .
|
||
|
|
")(?:\\/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))?)";
|
||
|
|
|
||
|
|
$new_ips = explode(',',str_replace(' ','',$_SERVER[$ip_key]));
|
||
|
|
|
||
|
|
// remove any non-IP stuff
|
||
|
|
foreach($new_ips as $ip){
|
||
|
|
if( preg_match("/^$IPv4Address$/",$ip,$match) || preg_match("/^$IPv6Address$/",$ip,$match)) {
|
||
|
|
$ips[] = $match[0];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $ips;
|
||
|
|
};
|
||
|
|
|
||
|
|
$ips = $add_ip($ips,'REMOTE_ADDR');
|
||
|
|
$ips = $add_ip($ips,'HTTP_X_FORWARDED_FOR');
|
||
|
|
$ips = $add_ip($ips,'HTTP_X_REAL_IP');
|
||
|
|
$ips = array_values(array_unique($ips));
|
||
|
|
|
||
|
|
// for some strange reason we don't have a IP
|
||
|
|
if( empty($ips) ){
|
||
|
|
return '0.0.0.0';
|
||
|
|
}
|
||
|
|
|
||
|
|
// decide which IP to use, trying to avoid local addresses
|
||
|
|
$ips = array_reverse($ips);
|
||
|
|
foreach($ips as $ip){
|
||
|
|
if( !preg_match('/^(::1|[fF][eE]80:|127\.|10\.|192\.168\.|172\.((1[6-9])|(2[0-9])|(3[0-1]))\.)/',$ip) ){
|
||
|
|
return $ip;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// use the first (last) address
|
||
|
|
return end($ips);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Re-enable components that were disabled because of fatal errors
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function ClearErrors(){
|
||
|
|
\gp\admin\Tools\Errors::ClearAll();
|
||
|
|
$title = \gp\tool::WhichPage();
|
||
|
|
\gp\tool::Redirect(\gp\tool::GetUrl($title, '', false));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Notify the admin if there have been any fatal errors
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public static function FatalNotices(){
|
||
|
|
global $dataDir, $page;
|
||
|
|
|
||
|
|
if( !\gp\admin\Tools::HasPermission('Admin_Errors') ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( is_object($page)
|
||
|
|
&& property_exists($page, 'requested')
|
||
|
|
&& strpos($page->requested, 'Admin/Errors') !== false
|
||
|
|
){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$dir = $dataDir . '/data/_site';
|
||
|
|
$files = scandir($dir);
|
||
|
|
$has_fatal = false;
|
||
|
|
|
||
|
|
foreach($files as $file){
|
||
|
|
if( strpos($file, 'fatal_') === false ){
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$has_fatal = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( !$has_fatal ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$msg = 'Warning: One or more components have caused fatal errors. <br/>';
|
||
|
|
$msg .= \gp\tool::Link(
|
||
|
|
'Admin/Errors',
|
||
|
|
'More Information',
|
||
|
|
'',
|
||
|
|
'style="white-space:nowrap"'
|
||
|
|
);
|
||
|
|
|
||
|
|
$msg .= ' ';
|
||
|
|
|
||
|
|
$msg .= \gp\tool::Link(
|
||
|
|
(isset($page) ? $page->requested : 'Admin'),
|
||
|
|
'Clear All Errors',
|
||
|
|
'cmd=ClearErrors',
|
||
|
|
'', //cannot be creq
|
||
|
|
'ClearErrors'
|
||
|
|
);
|
||
|
|
|
||
|
|
msg($msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
public static function SessionCookie($uniq){
|
||
|
|
return 'gpEasy_'.substr(sha1($uniq),12,12);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|