/**
* Sets the login cookie and session based on the id_member and password passed.
*
* What it does:
* - password should be already encrypted with the cookie salt.
* - logs the user out if id_member is zero.
* - sets the cookie and session to last the number of seconds specified by cookie_length.
* - when logging out, if the globalCookies setting is enabled, attempts to clear the subdomain's cookie too.
*
* @package Authorization
* @param int $cookie_length
* @param int $id The id of the member
* @param string $password = ''
*/
function setLoginCookie($cookie_length, $id, $password = '')
{
global $cookiename, $boardurl, $modSettings;
// If changing state force them to re-address some permission caching.
$_SESSION['mc']['time'] = 0;
// Let's be sure it is an int to simplify the regexp used to validate the cookie
$id = (int) $id;
// The cookie may already exist, and have been set with different options.
$cookie_state = (empty($modSettings['localCookies']) ? 0 : 1) | (empty($modSettings['globalCookies']) ? 0 : 2);
if (isset($_COOKIE[$cookiename]) && preg_match('~^a:[34]:\\{i:0;i:\\d{1,8};i:1;s:(0|40):"([a-fA-F0-9]{40})?";i:2;[id]:\\d{1,14};(i:3;i:\\d;)?\\}$~', $_COOKIE[$cookiename]) === 1) {
$array = @unserialize($_COOKIE[$cookiename]);
// Out with the old, in with the new!
if (isset($array[3]) && $array[3] != $cookie_state) {
$cookie_url = url_parts($array[3] & 1 > 0, $array[3] & 2 > 0);
elk_setcookie($cookiename, serialize(array(0, '', 0)), time() - 3600, $cookie_url[1], $cookie_url[0]);
}
}
// Get the data and path to set it on.
$data = serialize(empty($id) ? array(0, '', 0) : array($id, $password, time() + $cookie_length, $cookie_state));
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
// Set the cookie, $_COOKIE, and session variable.
elk_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
// If subdomain-independent cookies are on, unset the subdomain-dependent cookie too.
if (empty($id) && !empty($modSettings['globalCookies'])) {
elk_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], '');
}
// Any alias URLs? This is mainly for use with frames, etc.
if (!empty($modSettings['forum_alias_urls'])) {
$aliases = explode(',', $modSettings['forum_alias_urls']);
$temp = $boardurl;
foreach ($aliases as $alias) {
// Fake the $boardurl so we can set a different cookie.
$alias = strtr(trim($alias), array('http://' => '', 'https://' => ''));
$boardurl = 'http://' . $alias;
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
if ($cookie_url[0] == '') {
$cookie_url[0] = strtok($alias, '/');
}
elk_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
}
$boardurl = $temp;
}
$_COOKIE[$cookiename] = $data;
// Make sure the user logs in with a new session ID.
if (!isset($_SESSION['login_' . $cookiename]) || $_SESSION['login_' . $cookiename] !== $data) {
// We need to meddle with the session.
require_once SOURCEDIR . '/Session.php';
// Backup the old session.
$oldSessionData = $_SESSION;
// Remove the old session data and file / db entry
$_SESSION = array();
session_destroy();
// Recreate and restore the new session.
loadSession();
// Get a new session id, and load it with the data
session_regenerate_id();
$_SESSION = $oldSessionData;
$_SESSION['login_' . $cookiename] = $data;
}
}
/**
* Allow the user to vote.
* It is called to register a vote in a poll.
* Must be called with a topic and option specified.
* Requires the poll_vote permission.
* Upon successful completion of action will direct user back to topic.
* Accessed via ?action=poll;sa=vote.
*
* @uses Post language file.
*/
public function action_vote()
{
global $topic, $user_info, $modSettings;
require_once SUBSDIR . '/Poll.subs.php';
// Make sure you can vote.
isAllowedTo('poll_vote');
loadLanguage('Post');
// Check if they have already voted, or voting is locked.
$row = checkVote($topic);
if (empty($row)) {
fatal_lang_error('poll_error', false);
}
// If this is a guest can they vote?
if ($user_info['is_guest']) {
// Guest voting disabled?
if (!$row['guest_vote']) {
fatal_lang_error('guest_vote_disabled');
} elseif (!empty($_COOKIE['guest_poll_vote']) && preg_match('~^[0-9,;]+$~', $_COOKIE['guest_poll_vote']) && strpos($_COOKIE['guest_poll_vote'], ';' . $row['id_poll'] . ',') !== false) {
// ;id,timestamp,[vote,vote...]; etc
$guestinfo = explode(';', $_COOKIE['guest_poll_vote']);
// Find the poll we're after.
foreach ($guestinfo as $i => $guestvoted) {
$guestvoted = explode(',', $guestvoted);
if ($guestvoted[0] == $row['id_poll']) {
break;
}
}
// Has the poll been reset since guest voted?
if (isset($guestvoted[1]) && $row['reset_poll'] > $guestvoted[1]) {
// Remove the poll info from the cookie to allow guest to vote again
unset($guestinfo[$i]);
if (!empty($guestinfo)) {
$_COOKIE['guest_poll_vote'] = ';' . implode(';', $guestinfo);
} else {
unset($_COOKIE['guest_poll_vote']);
}
} else {
fatal_lang_error('poll_error', false);
}
unset($guestinfo, $guestvoted, $i);
}
}
// Is voting locked or has it expired?
if (!empty($row['voting_locked']) || !empty($row['expire_time']) && time() > $row['expire_time']) {
fatal_lang_error('poll_error', false);
}
// If they have already voted and aren't allowed to change their vote - hence they are outta here!
if (!$user_info['is_guest'] && $row['selected'] != -1 && empty($row['change_vote'])) {
fatal_lang_error('poll_error', false);
} elseif (!empty($row['change_vote']) && !$user_info['is_guest'] && empty($_POST['options'])) {
checkSession('request');
// Find out what they voted for before.
$pollOptions = determineVote($user_info['id'], $row['id_poll']);
// Just skip it if they had voted for nothing before.
if (!empty($pollOptions)) {
// Update the poll totals.
decreaseVoteCounter($row['id_poll'], $pollOptions);
// Delete off the log.
removeVote($user_info['id'], $row['id_poll']);
}
// Redirect back to the topic so the user can vote again!
if (empty($_POST['options'])) {
redirectexit('topic=' . $topic . '.' . $_REQUEST['start']);
}
}
checkSession('request');
// Make sure the option(s) are valid.
if (empty($_POST['options'])) {
fatal_lang_error('didnt_select_vote', false);
}
// Too many options checked!
if (count($_REQUEST['options']) > $row['max_votes']) {
fatal_lang_error('poll_too_many_votes', false, array($row['max_votes']));
}
$pollOptions = array();
$inserts = array();
foreach ($_REQUEST['options'] as $id) {
$id = (int) $id;
$pollOptions[] = $id;
$inserts[] = array($row['id_poll'], $user_info['id'], $id);
}
// Add their vote to the tally.
addVote($inserts);
increaseVoteCounter($row['id_poll'], $pollOptions);
// If it's a guest don't let them vote again.
if ($user_info['is_guest'] && count($pollOptions) > 0) {
// Time is stored in case the poll is reset later, plus what they voted for.
$_COOKIE['guest_poll_vote'] = empty($_COOKIE['guest_poll_vote']) ? '' : $_COOKIE['guest_poll_vote'];
// ;id,timestamp,[vote,vote...]; etc
$_COOKIE['guest_poll_vote'] .= ';' . $row['id_poll'] . ',' . time() . ',' . (count($pollOptions) > 1 ? implode(',', $pollOptions) : $pollOptions[0]);
// Increase num guest voters count by 1
increaseGuestVote($row['id_poll']);
require_once SUBSDIR . '/Auth.subs.php';
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
elk_setcookie('guest_poll_vote', $_COOKIE['guest_poll_vote'], time() + 2500000, $cookie_url[1], $cookie_url[0], false, false);
}
// Maybe let a social networking mod log this, or something?
call_integration_hook('integrate_poll_vote', array(&$row['id_poll'], &$pollOptions));
// Return to the post...
redirectexit('topic=' . $topic . '.' . $_REQUEST['start']);
}
/**
* Apply restrictions for banned users. For example, disallow access.
*
* What it does:
* - If the user is banned, it dies with an error.
* - Caches this information for optimization purposes.
* - Forces a recheck if force_check is true.
*
* @param bool $forceCheck = false
*/
function is_not_banned($forceCheck = false)
{
global $txt, $modSettings, $context, $user_info, $cookiename, $user_settings;
$db = database();
// You cannot be banned if you are an admin - doesn't help if you log out.
if ($user_info['is_admin']) {
return;
}
// Only check the ban every so often. (to reduce load.)
if ($forceCheck || !isset($_SESSION['ban']) || empty($modSettings['banLastUpdated']) || $_SESSION['ban']['last_checked'] < $modSettings['banLastUpdated'] || $_SESSION['ban']['id_member'] != $user_info['id'] || $_SESSION['ban']['ip'] != $user_info['ip'] || $_SESSION['ban']['ip2'] != $user_info['ip2'] || isset($user_info['email'], $_SESSION['ban']['email']) && $_SESSION['ban']['email'] != $user_info['email']) {
// Innocent until proven guilty. (but we know you are! :P)
$_SESSION['ban'] = array('last_checked' => time(), 'id_member' => $user_info['id'], 'ip' => $user_info['ip'], 'ip2' => $user_info['ip2'], 'email' => $user_info['email']);
$ban_query = array();
$ban_query_vars = array('current_time' => time());
$flag_is_activated = false;
// Check both IP addresses.
foreach (array('ip', 'ip2') as $ip_number) {
if ($ip_number == 'ip2' && $user_info['ip2'] == $user_info['ip']) {
continue;
}
$ban_query[] = constructBanQueryIP($user_info[$ip_number]);
// IP was valid, maybe there's also a hostname...
if (empty($modSettings['disableHostnameLookup']) && $user_info[$ip_number] != 'unknown') {
$hostname = host_from_ip($user_info[$ip_number]);
if (strlen($hostname) > 0) {
$ban_query[] = '({string:hostname} LIKE bi.hostname)';
$ban_query_vars['hostname'] = $hostname;
}
}
}
// Is their email address banned?
if (strlen($user_info['email']) != 0) {
$ban_query[] = '({string:email} LIKE bi.email_address)';
$ban_query_vars['email'] = $user_info['email'];
}
// How about this user?
if (!$user_info['is_guest'] && !empty($user_info['id'])) {
$ban_query[] = 'bi.id_member = {int:id_member}';
$ban_query_vars['id_member'] = $user_info['id'];
}
// Check the ban, if there's information.
if (!empty($ban_query)) {
$restrictions = array('cannot_access', 'cannot_login', 'cannot_post', 'cannot_register');
$request = $db->query('', '
SELECT bi.id_ban, bi.email_address, bi.id_member, bg.cannot_access, bg.cannot_register,
bg.cannot_post, bg.cannot_login, bg.reason, IFNULL(bg.expire_time, 0) AS expire_time
FROM {db_prefix}ban_items AS bi
INNER JOIN {db_prefix}ban_groups AS bg ON (bg.id_ban_group = bi.id_ban_group AND (bg.expire_time IS NULL OR bg.expire_time > {int:current_time}))
WHERE
(' . implode(' OR ', $ban_query) . ')', $ban_query_vars);
// Store every type of ban that applies to you in your session.
while ($row = $db->fetch_assoc($request)) {
foreach ($restrictions as $restriction) {
if (!empty($row[$restriction])) {
$_SESSION['ban'][$restriction]['reason'] = $row['reason'];
$_SESSION['ban'][$restriction]['ids'][] = $row['id_ban'];
if (!isset($_SESSION['ban']['expire_time']) || $_SESSION['ban']['expire_time'] != 0 && ($row['expire_time'] == 0 || $row['expire_time'] > $_SESSION['ban']['expire_time'])) {
$_SESSION['ban']['expire_time'] = $row['expire_time'];
}
if (!$user_info['is_guest'] && $restriction == 'cannot_access' && ($row['id_member'] == $user_info['id'] || $row['email_address'] == $user_info['email'])) {
$flag_is_activated = true;
}
}
}
}
$db->free_result($request);
}
// Mark the cannot_access and cannot_post bans as being 'hit'.
if (isset($_SESSION['ban']['cannot_access']) || isset($_SESSION['ban']['cannot_post']) || isset($_SESSION['ban']['cannot_login'])) {
log_ban(array_merge(isset($_SESSION['ban']['cannot_access']) ? $_SESSION['ban']['cannot_access']['ids'] : array(), isset($_SESSION['ban']['cannot_post']) ? $_SESSION['ban']['cannot_post']['ids'] : array(), isset($_SESSION['ban']['cannot_login']) ? $_SESSION['ban']['cannot_login']['ids'] : array()));
}
// If for whatever reason the is_activated flag seems wrong, do a little work to clear it up.
if ($user_info['id'] && ($user_settings['is_activated'] >= 10 && !$flag_is_activated || $user_settings['is_activated'] < 10 && $flag_is_activated)) {
require_once SUBSDIR . '/Bans.subs.php';
updateBanMembers();
}
}
// Hey, I know you! You're ehm...
if (!isset($_SESSION['ban']['cannot_access']) && !empty($_COOKIE[$cookiename . '_'])) {
$bans = explode(',', $_COOKIE[$cookiename . '_']);
foreach ($bans as $key => $value) {
$bans[$key] = (int) $value;
}
$request = $db->query('', '
SELECT bi.id_ban, bg.reason
FROM {db_prefix}ban_items AS bi
INNER JOIN {db_prefix}ban_groups AS bg ON (bg.id_ban_group = bi.id_ban_group)
WHERE bi.id_ban IN ({array_int:ban_list})
AND (bg.expire_time IS NULL OR bg.expire_time > {int:current_time})
AND bg.cannot_access = {int:cannot_access}
LIMIT ' . count($bans), array('cannot_access' => 1, 'ban_list' => $bans, 'current_time' => time()));
while ($row = $db->fetch_assoc($request)) {
$_SESSION['ban']['cannot_access']['ids'][] = $row['id_ban'];
$_SESSION['ban']['cannot_access']['reason'] = $row['reason'];
}
$db->free_result($request);
// My mistake. Next time better.
if (!isset($_SESSION['ban']['cannot_access'])) {
require_once SUBSDIR . '/Auth.subs.php';
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
elk_setcookie($cookiename . '_', '', time() - 3600, $cookie_url[1], $cookie_url[0], false, false);
}
}
// If you're fully banned, it's end of the story for you.
if (isset($_SESSION['ban']['cannot_access'])) {
require_once SUBSDIR . '/Auth.subs.php';
// We don't wanna see you!
if (!$user_info['is_guest']) {
require_once CONTROLLERDIR . '/Auth.controller.php';
$controller = new Auth_Controller();
$controller->action_logout(true, false);
}
// 'Log' the user out. Can't have any funny business... (save the name!)
$old_name = isset($user_info['name']) && $user_info['name'] != '' ? $user_info['name'] : $txt['guest_title'];
$user_info['name'] = '';
$user_info['username'] = '';
$user_info['is_guest'] = true;
$user_info['is_admin'] = false;
$user_info['permissions'] = array();
$user_info['id'] = 0;
$context['user'] = array('id' => 0, 'username' => '', 'name' => $txt['guest_title'], 'is_guest' => true, 'is_logged' => false, 'is_admin' => false, 'is_mod' => false, 'can_mod' => false, 'language' => $user_info['language']);
// A goodbye present.
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
elk_setcookie($cookiename . '_', implode(',', $_SESSION['ban']['cannot_access']['ids']), time() + 3153600, $cookie_url[1], $cookie_url[0], false, false);
// Don't scare anyone, now.
$_GET['action'] = '';
$_GET['board'] = '';
$_GET['topic'] = '';
writeLog(true);
// You banned, sucka!
fatal_error(sprintf($txt['your_ban'], $old_name) . (empty($_SESSION['ban']['cannot_access']['reason']) ? '' : '<br />' . $_SESSION['ban']['cannot_access']['reason']) . '<br />' . (!empty($_SESSION['ban']['expire_time']) ? sprintf($txt['your_ban_expires'], standardTime($_SESSION['ban']['expire_time'], false)) : $txt['your_ban_expires_never']), 'user');
// If we get here, something's gone wrong.... but let's try anyway.
trigger_error('Hacking attempt...', E_USER_ERROR);
} elseif (isset($_SESSION['ban']['cannot_login']) && !$user_info['is_guest']) {
// We don't wanna see you!
$db->query('', '
DELETE FROM {db_prefix}log_online
WHERE id_member = {int:current_member}', array('current_member' => $user_info['id']));
// 'Log' the user out. Can't have any funny business... (save the name!)
$old_name = isset($user_info['name']) && $user_info['name'] != '' ? $user_info['name'] : $txt['guest_title'];
$user_info['name'] = '';
$user_info['username'] = '';
$user_info['is_guest'] = true;
$user_info['is_admin'] = false;
$user_info['permissions'] = array();
$user_info['id'] = 0;
$context['user'] = array('id' => 0, 'username' => '', 'name' => $txt['guest_title'], 'is_guest' => true, 'is_logged' => false, 'is_admin' => false, 'is_mod' => false, 'can_mod' => false, 'language' => $user_info['language']);
// Wipe 'n Clean(r) erases all traces.
$_GET['action'] = '';
$_GET['board'] = '';
$_GET['topic'] = '';
writeLog(true);
// Log them out
require_once CONTROLLERDIR . '/Auth.controller.php';
$controller = new Auth_Controller();
$controller->action_logout(true, false);
// Tell them thanks
fatal_error(sprintf($txt['your_ban'], $old_name) . (empty($_SESSION['ban']['cannot_login']['reason']) ? '' : '<br />' . $_SESSION['ban']['cannot_login']['reason']) . '<br />' . (!empty($_SESSION['ban']['expire_time']) ? sprintf($txt['your_ban_expires'], standardTime($_SESSION['ban']['expire_time'], false)) : $txt['your_ban_expires_never']) . '<br />' . $txt['ban_continue_browse'], 'user');
}
// Fix up the banning permissions.
if (isset($user_info['permissions'])) {
banPermissions();
}
}
