211 lines
6.5 KiB
PHP
211 lines
6.5 KiB
PHP
<?php
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require_once('include/security.php');
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require_once('include/datetime.php');
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function nuke_session() {
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new_cookie(0); // make sure cookie is deleted on browser close, as a security measure
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unset($_SESSION['authenticated']);
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unset($_SESSION['uid']);
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unset($_SESSION['visitor_id']);
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unset($_SESSION['administrator']);
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unset($_SESSION['cid']);
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unset($_SESSION['theme']);
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unset($_SESSION['mobile-theme']);
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unset($_SESSION['page_flags']);
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unset($_SESSION['submanage']);
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unset($_SESSION['my_url']);
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unset($_SESSION['my_address']);
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unset($_SESSION['addr']);
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unset($_SESSION['return_url']);
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}
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// login/logout
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if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) {
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if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
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// process logout request
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call_hooks("logging_out");
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nuke_session();
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info( t('Logged out.') . EOL);
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goaway(z_root());
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}
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if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) {
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$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
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intval($_SESSION['visitor_id'])
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);
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if(count($r)) {
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$a->contact = $r[0];
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}
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}
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if(x($_SESSION,'uid')) {
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// already logged in user returning
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$check = get_config('system','paranoia');
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// extra paranoia - if the IP changed, log them out
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if($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
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logger('Session address changed. Paranoid setting in effect, blocking session. '
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. $_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
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nuke_session();
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goaway(z_root());
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}
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$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
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FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
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intval($_SESSION['uid'])
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);
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if(! count($r)) {
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nuke_session();
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goaway(z_root());
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}
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// Make sure to refresh the last login time for the user if the user
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// stays logged in for a long time, e.g. with "Remember Me"
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$login_refresh = false;
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if(! x($_SESSION['last_login_date'])) {
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$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
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}
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if( strcmp(datetime_convert('UTC','UTC','now - 12 hours'), $_SESSION['last_login_date']) > 0 ) {
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$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
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$login_refresh = true;
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}
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authenticate_success($r[0], false, false, $login_refresh);
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}
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}
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else {
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if(isset($_SESSION)) {
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nuke_session();
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}
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if((x($_POST,'password')) && strlen($_POST['password']))
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$encrypted = hash('whirlpool',trim($_POST['password']));
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else {
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if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
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(x($_POST,'username')) && strlen($_POST['username'])) {
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$noid = get_config('system','no_openid');
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$openid_url = trim((strlen($_POST['openid_url'])?$_POST['openid_url']:$_POST['username']) );
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// validate_url alters the calling parameter
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$temp_string = $openid_url;
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// if it's an email address or doesn't resolve to a URL, fail.
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if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
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$a = get_app();
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notice( t('Login failed.') . EOL);
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goaway(z_root());
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// NOTREACHED
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}
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// Otherwise it's probably an openid.
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try {
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require_once('library/openid.php');
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$openid = new LightOpenID;
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$openid->identity = $openid_url;
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$_SESSION['openid'] = $openid_url;
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$a = get_app();
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$openid->returnUrl = $a->get_baseurl(true) . '/openid';
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goaway($openid->authUrl());
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} catch (Exception $e) {
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notice( t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'. t('The error message was:').' '.$e->getMessage());
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}
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// NOTREACHED
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}
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}
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if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
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$record = null;
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$addon_auth = array(
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'username' => trim($_POST['username']),
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'password' => trim($_POST['password']),
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'authenticated' => 0,
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'user_record' => null
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);
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/**
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*
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* A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
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* Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
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* and later plugins should not interfere with an earlier one that succeeded.
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*
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*/
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call_hooks('authenticate', $addon_auth);
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if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
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$record = $addon_auth['user_record'];
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}
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else {
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// process normal login request
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$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
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FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
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AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
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dbesc(trim($_POST['username'])),
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dbesc(trim($_POST['username'])),
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dbesc($encrypted)
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);
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if(count($r))
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$record = $r[0];
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}
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if((! $record) || (! count($record))) {
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logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
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notice( t('Login failed.') . EOL );
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goaway(z_root());
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}
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// If the user specified to remember the authentication, then change the cookie
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// to expire after one year (the default is when the browser is closed).
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// If the user did not specify to remember, change the cookie to expire when the
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// browser is closed. The reason this is necessary is because if the user
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// specifies to remember, then logs out and logs back in without specifying to
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// remember, the old "remember" cookie may remain and prevent the session from
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// expiring when the browser is closed.
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//
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// It seems like I should be able to test for the old cookie, but for some reason when
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// I read the lifetime value from session_get_cookie_params(), I always get '0'
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// (i.e. expire when the browser is closed), even when there's a time expiration
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// on the cookie
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if($_POST['remember']) {
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new_cookie(31449600); // one year
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}
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else {
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new_cookie(0); // 0 means delete on browser exit
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}
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// if we haven't failed up this point, log them in.
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$_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
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authenticate_success($record, true, true);
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}
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}
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function new_cookie($time) {
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$old_sid = session_id();
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session_set_cookie_params("$time");
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session_regenerate_id(false);
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q("UPDATE session SET sid = '%s' WHERE sid = '%s'", dbesc(session_id()), dbesc($old_sid));
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}
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