990 lines
35 KiB
PHP
990 lines
35 KiB
PHP
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<?php
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/**
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines http://www.simplemachines.org
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* @copyright 2011 Simple Machines
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* @license http://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.0.3
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*/
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if (!defined('SMF'))
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die('Hacking attempt...');
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/* This file has the very important job of insuring forum security. This
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task includes banning and permissions, namely. It does this by providing
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the following functions:
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void validateSession()
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- makes sure the user is who they claim to be by requiring a
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password to be typed in every hour.
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- is turned on and off by the securityDisable setting.
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- uses the adminLogin() function of Subs-Auth.php if they need to
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login, which saves all request (post and get) data.
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void is_not_guest(string message = '')
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- checks if the user is currently a guest, and if so asks them to
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login with a message telling them why.
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- message is what to tell them when asking them to login.
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void is_not_banned(bool force_check = false)
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- checks if the user is banned, and if so dies with an error.
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- caches this information for optimization purposes.
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- forces a recheck if force_check is true.
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void banPermissions()
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- applies any states of banning by removing permissions the user
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cannot have.
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void log_ban(array ban_ids = array(), string email = null)
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- log the current user in the ban logs.
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- increment the hit counters for the specified ban ID's (if any.)
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void isBannedEmail(string email, string restriction, string error)
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- check if a given email is banned.
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- performs an immediate ban if the turns turns out positive.
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string checkSession(string type = 'post', string from_action = none,
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is_fatal = true)
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- checks the current session, verifying that the person is who he or
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she should be.
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- also checks the referrer to make sure they didn't get sent here.
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- depends on the disableCheckUA setting, which is usually missing.
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- will check GET, POST, or REQUEST depending on the passed type.
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- also optionally checks the referring action if passed. (note that
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the referring action must be by GET.)
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- returns the error message if is_fatal is false.
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bool checkSubmitOnce(string action, bool is_fatal = true)
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- registers a sequence number for a form.
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- checks whether a submitted sequence number is registered in the
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current session.
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- depending on the value of is_fatal shows an error or returns true or
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false.
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- frees a sequence number from the stack after it's been checked.
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- frees a sequence number without checking if action == 'free'.
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bool allowedTo(string permission, array boards = current)
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- checks whether the user is allowed to do permission. (ie. post_new.)
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- if boards is specified, checks those boards instead of the current
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one.
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- always returns true if the user is an administrator.
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- returns true if he or she can do it, false otherwise.
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void isAllowedTo(string permission, array boards = current)
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- uses allowedTo() to check if the user is allowed to do permission.
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- checks the passed boards or current board for the permission.
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- if they are not, it loads the Errors language file and shows an
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error using $txt['cannot_' . $permission].
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- if they are a guest and cannot do it, this calls is_not_guest().
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array boardsAllowedTo(string permission, bool check_access = false)
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- returns a list of boards on which the user is allowed to do the
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specified permission.
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- returns an array with only a 0 in it if the user has permission
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to do this on every board.
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- returns an empty array if he or she cannot do this on any board.
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- if check_access is true will also make sure the group has proper access to that board.
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string showEmailAddress(string userProfile_hideEmail, int userProfile_id)
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- returns whether an email address should be shown and how.
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- possible outcomes are
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'yes': show the full email address
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'yes_permission_override': show the full email address, either you
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are a moderator or it's your own email address.
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'no_through_forum': don't show the email address, but do allow
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things to be mailed using the built-in forum mailer.
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'no': keep the email address hidden.
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*/
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// Check if the user is who he/she says he is
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function validateSession()
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{
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global $modSettings, $sourcedir, $user_info, $sc, $user_settings;
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// We don't care if the option is off, because Guests should NEVER get past here.
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is_not_guest();
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// If we're using XML give an additional ten minutes grace as an admin can't log on in XML mode.
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$refreshTime = isset($_GET['xml']) ? 4200 : 3600;
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// Is the security option off? Or are they already logged in?
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if (!empty($modSettings['securityDisable']) || (!empty($_SESSION['admin_time']) && $_SESSION['admin_time'] + $refreshTime >= time()))
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return;
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require_once($sourcedir . '/Subs-Auth.php');
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// Hashed password, ahoy!
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if (isset($_POST['admin_hash_pass']) && strlen($_POST['admin_hash_pass']) == 40)
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{
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checkSession();
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$good_password = in_array(true, call_integration_hook('integrate_verify_password', array($user_info['username'], $_POST['admin_hash_pass'], true)), true);
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if ($good_password || $_POST['admin_hash_pass'] == sha1($user_info['passwd'] . $sc))
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{
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$_SESSION['admin_time'] = time();
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unset($_SESSION['request_referer']);
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return;
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}
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}
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// Posting the password... check it.
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if (isset($_POST['admin_pass']))
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{
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checkSession();
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$good_password = in_array(true, call_integration_hook('integrate_verify_password', array($user_info['username'], $_POST['admin_pass'], false)), true);
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// Password correct?
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if ($good_password || sha1(strtolower($user_info['username']) . $_POST['admin_pass']) == $user_info['passwd'])
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{
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$_SESSION['admin_time'] = time();
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unset($_SESSION['request_referer']);
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return;
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}
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}
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// OpenID?
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if (!empty($user_settings['openid_uri']))
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{
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require_once($sourcedir . '/Subs-OpenID.php');
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smf_openID_revalidate();
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$_SESSION['admin_time'] = time();
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unset($_SESSION['request_referer']);
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return;
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}
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// Better be sure to remember the real referer
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if (empty($_SESSION['request_referer']))
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$_SESSION['request_referer'] = isset($_SERVER['HTTP_REFERER']) ? @parse_url($_SERVER['HTTP_REFERER']) : array();
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elseif (empty($_POST))
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unset($_SESSION['request_referer']);
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// Need to type in a password for that, man.
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adminLogin();
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}
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// Require a user who is logged in. (not a guest.)
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function is_not_guest($message = '')
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{
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global $user_info, $txt, $context, $scripturl;
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// Luckily, this person isn't a guest.
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if (!$user_info['is_guest'])
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return;
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// People always worry when they see people doing things they aren't actually doing...
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$_GET['action'] = '';
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$_GET['board'] = '';
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$_GET['topic'] = '';
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writeLog(true);
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// Just die.
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if (isset($_REQUEST['xml']))
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obExit(false);
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// Attempt to detect if they came from dlattach.
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if (!WIRELESS && SMF != 'SSI' && empty($context['theme_loaded']))
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loadTheme();
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// Never redirect to an attachment
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if (strpos($_SERVER['REQUEST_URL'], 'dlattach') === false)
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$_SESSION['login_url'] = $_SERVER['REQUEST_URL'];
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// Load the Login template and language file.
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loadLanguage('Login');
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// Are we in wireless mode?
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if (WIRELESS)
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{
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$context['login_error'] = $message ? $message : $txt['only_members_can_access'];
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$context['sub_template'] = WIRELESS_PROTOCOL . '_login';
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}
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// Apparently we're not in a position to handle this now. Let's go to a safer location for now.
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elseif (empty($context['template_layers']))
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{
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$_SESSION['login_url'] = $scripturl . '?' . $_SERVER['QUERY_STRING'];
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redirectexit('action=login');
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}
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else
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{
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loadTemplate('Login');
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$context['sub_template'] = 'kick_guest';
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$context['robot_no_index'] = true;
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}
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// Use the kick_guest sub template...
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$context['kick_message'] = $message;
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$context['page_title'] = $txt['login'];
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obExit();
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// We should never get to this point, but if we did we wouldn't know the user isn't a guest.
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trigger_error('Hacking attempt...', E_USER_ERROR);
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}
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// Do banning related stuff. (ie. disallow access....)
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function is_not_banned($forceCheck = false)
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{
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global $txt, $modSettings, $context, $user_info;
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global $sourcedir, $cookiename, $user_settings, $smcFunc;
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// You cannot be banned if you are an admin - doesn't help if you log out.
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if ($user_info['is_admin'])
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return;
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// Only check the ban every so often. (to reduce load.)
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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'] != $user_info['email']))
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{
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// Innocent until proven guilty. (but we know you are! :P)
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$_SESSION['ban'] = array(
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'last_checked' => time(),
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'id_member' => $user_info['id'],
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'ip' => $user_info['ip'],
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'ip2' => $user_info['ip2'],
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'email' => $user_info['email'],
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);
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$ban_query = array();
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$ban_query_vars = array('current_time' => time());
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$flag_is_activated = false;
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// Check both IP addresses.
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foreach (array('ip', 'ip2') as $ip_number)
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{
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// Check if we have a valid IP address.
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if (preg_match('/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $user_info[$ip_number], $ip_parts) == 1)
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{
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$ban_query[] = '((' . $ip_parts[1] . ' BETWEEN bi.ip_low1 AND bi.ip_high1)
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AND (' . $ip_parts[2] . ' BETWEEN bi.ip_low2 AND bi.ip_high2)
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AND (' . $ip_parts[3] . ' BETWEEN bi.ip_low3 AND bi.ip_high3)
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AND (' . $ip_parts[4] . ' BETWEEN bi.ip_low4 AND bi.ip_high4))';
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// IP was valid, maybe there's also a hostname...
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if (empty($modSettings['disableHostnameLookup']))
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{
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$hostname = host_from_ip($user_info[$ip_number]);
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if (strlen($hostname) > 0)
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{
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$ban_query[] = '({string:hostname} LIKE bi.hostname)';
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$ban_query_vars['hostname'] = $hostname;
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}
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}
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}
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// We use '255.255.255.255' for 'unknown' since it's not valid anyway.
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elseif ($user_info['ip'] == 'unknown')
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$ban_query[] = '(bi.ip_low1 = 255 AND bi.ip_high1 = 255
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AND bi.ip_low2 = 255 AND bi.ip_high2 = 255
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AND bi.ip_low3 = 255 AND bi.ip_high3 = 255
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AND bi.ip_low4 = 255 AND bi.ip_high4 = 255)';
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}
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// Is their email address banned?
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if (strlen($user_info['email']) != 0)
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{
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$ban_query[] = '({string:email} LIKE bi.email_address)';
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$ban_query_vars['email'] = $user_info['email'];
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}
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// How about this user?
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if (!$user_info['is_guest'] && !empty($user_info['id']))
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{
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$ban_query[] = 'bi.id_member = {int:id_member}';
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$ban_query_vars['id_member'] = $user_info['id'];
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}
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// Check the ban, if there's information.
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if (!empty($ban_query))
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{
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$restrictions = array(
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'cannot_access',
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'cannot_login',
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'cannot_post',
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'cannot_register',
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);
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$request = $smcFunc['db_query']('', '
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SELECT bi.id_ban, bi.email_address, bi.id_member, bg.cannot_access, bg.cannot_register,
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bg.cannot_post, bg.cannot_login, bg.reason, IFNULL(bg.expire_time, 0) AS expire_time
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FROM {db_prefix}ban_items AS bi
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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}))
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WHERE
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(' . implode(' OR ', $ban_query) . ')',
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$ban_query_vars
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);
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// Store every type of ban that applies to you in your session.
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while ($row = $smcFunc['db_fetch_assoc']($request))
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{
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foreach ($restrictions as $restriction)
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if (!empty($row[$restriction]))
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{
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$_SESSION['ban'][$restriction]['reason'] = $row['reason'];
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$_SESSION['ban'][$restriction]['ids'][] = $row['id_ban'];
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if (!isset($_SESSION['ban']['expire_time']) || ($_SESSION['ban']['expire_time'] != 0 && ($row['expire_time'] == 0 || $row['expire_time'] > $_SESSION['ban']['expire_time'])))
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$_SESSION['ban']['expire_time'] = $row['expire_time'];
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if (!$user_info['is_guest'] && $restriction == 'cannot_access' && ($row['id_member'] == $user_info['id'] || array_key_exists($row['id_member'], $user_info['subaccounts']) || $row['email_address'] == $user_info['email']))
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$flag_is_activated = true;
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}
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}
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$smcFunc['db_free_result']($request);
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}
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// Mark the cannot_access and cannot_post bans as being 'hit'.
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if (isset($_SESSION['ban']['cannot_access']) || isset($_SESSION['ban']['cannot_post']) || isset($_SESSION['ban']['cannot_login']))
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log_ban(array_merge(isset($_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']) ? $_SESSION['ban']['cannot_login']['ids'] : array()));
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// If for whatever reason the is_activated flag seems wrong, do a little work to clear it up.
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if ($user_info['id'] && (($user_settings['is_activated'] >= 10 && !$flag_is_activated)
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|| ($user_settings['is_activated'] < 10 && $flag_is_activated)))
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{
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require_once($sourcedir . '/ManageBans.php');
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updateBanMembers();
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}
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}
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// Hey, I know you! You're ehm...
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if (!isset($_SESSION['ban']['cannot_access']) && !empty($_COOKIE[$cookiename . '_']))
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{
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$bans = explode(',', $_COOKIE[$cookiename . '_']);
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foreach ($bans as $key => $value)
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$bans[$key] = (int) $value;
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$request = $smcFunc['db_query']('', '
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SELECT bi.id_ban, bg.reason
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FROM {db_prefix}ban_items AS bi
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INNER JOIN {db_prefix}ban_groups AS bg ON (bg.id_ban_group = bi.id_ban_group)
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WHERE bi.id_ban IN ({array_int:ban_list})
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AND (bg.expire_time IS NULL OR bg.expire_time > {int:current_time})
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AND bg.cannot_access = {int:cannot_access}
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LIMIT ' . count($bans),
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array(
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'cannot_access' => 1,
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'ban_list' => $bans,
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'current_time' => time(),
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)
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);
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while ($row = $smcFunc['db_fetch_assoc']($request))
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{
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$_SESSION['ban']['cannot_access']['ids'][] = $row['id_ban'];
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$_SESSION['ban']['cannot_access']['reason'] = $row['reason'];
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}
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$smcFunc['db_free_result']($request);
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// My mistake. Next time better.
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if (!isset($_SESSION['ban']['cannot_access']))
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{
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require_once($sourcedir . '/Subs-Auth.php');
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$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
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setcookie($cookiename . '_', '', time() - 3600, $cookie_url[1], $cookie_url[0], 0);
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}
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}
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||
|
// If you're fully banned, it's end of the story for you.
|
||
|
if (isset($_SESSION['ban']['cannot_access']))
|
||
|
{
|
||
|
// We don't wanna see you!
|
||
|
if (!$user_info['is_guest'])
|
||
|
$smcFunc['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' => $user_info['language'],
|
||
|
);
|
||
|
|
||
|
// A goodbye present.
|
||
|
require_once($sourcedir . '/Subs-Auth.php');
|
||
|
$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
|
||
|
setcookie($cookiename . '_', implode(',', $_SESSION['ban']['cannot_access']['ids']), time() + 3153600, $cookie_url[1], $cookie_url[0], 0);
|
||
|
|
||
|
// 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($txt['your_ban_expires'], timeformat($_SESSION['ban']['expire_time'], false)) : $txt['your_ban_expires_never']), 'user');
|
||
|
|
||
|
// If we get here, something's gone wrong.... but let's try anyway.
|
||
|
trigger_error('Hacking attempt...', E_USER_ERROR);
|
||
|
}
|
||
|
// You're not allowed to log in but yet you are. Let's fix that.
|
||
|
elseif (isset($_SESSION['ban']['cannot_login']) && !$user_info['is_guest'])
|
||
|
{
|
||
|
// We don't wanna see you!
|
||
|
$smcFunc['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'],
|
||
|
);
|
||
|
|
||
|
// SMF's Wipe 'n Clean(r) erases all traces.
|
||
|
$_GET['action'] = '';
|
||
|
$_GET['board'] = '';
|
||
|
$_GET['topic'] = '';
|
||
|
writeLog(true);
|
||
|
|
||
|
require_once($sourcedir . '/LogInOut.php');
|
||
|
Logout(true, false);
|
||
|
|
||
|
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($txt['your_ban_expires'], timeformat($_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();
|
||
|
}
|
||
|
|
||
|
// Fix permissions according to ban status.
|
||
|
function banPermissions()
|
||
|
{
|
||
|
global $user_info, $sourcedir, $modSettings, $context;
|
||
|
|
||
|
// Somehow they got here, at least take away all permissions...
|
||
|
if (isset($_SESSION['ban']['cannot_access']))
|
||
|
$user_info['permissions'] = array();
|
||
|
// Okay, well, you can watch, but don't touch a thing.
|
||
|
elseif (isset($_SESSION['ban']['cannot_post']) || (!empty($modSettings['warning_mute']) && $modSettings['warning_mute'] <= $user_info['warning']))
|
||
|
{
|
||
|
$denied_permissions = array(
|
||
|
'pm_send',
|
||
|
'calendar_post', 'calendar_edit_own', 'calendar_edit_any',
|
||
|
'poll_post',
|
||
|
'poll_add_own', 'poll_add_any',
|
||
|
'poll_edit_own', 'poll_edit_any',
|
||
|
'poll_lock_own', 'poll_lock_any',
|
||
|
'poll_remove_own', 'poll_remove_any',
|
||
|
'manage_attachments', 'manage_smileys', 'manage_boards', 'admin_forum', 'manage_permissions',
|
||
|
'moderate_forum', 'manage_membergroups', 'manage_bans', 'send_mail', 'edit_news',
|
||
|
'profile_identity_any', 'profile_extra_any', 'profile_title_any',
|
||
|
'post_new', 'post_reply_own', 'post_reply_any',
|
||
|
'delete_own', 'delete_any', 'delete_replies',
|
||
|
'make_sticky',
|
||
|
'merge_any', 'split_any',
|
||
|
'modify_own', 'modify_any', 'modify_replies',
|
||
|
'move_any',
|
||
|
'send_topic',
|
||
|
'lock_own', 'lock_any',
|
||
|
'remove_own', 'remove_any',
|
||
|
'post_unapproved_topics', 'post_unapproved_replies_own', 'post_unapproved_replies_any',
|
||
|
);
|
||
|
$user_info['permissions'] = array_diff($user_info['permissions'], $denied_permissions);
|
||
|
}
|
||
|
// Are they absolutely under moderation?
|
||
|
elseif (!empty($modSettings['warning_moderate']) && $modSettings['warning_moderate'] <= $user_info['warning'])
|
||
|
{
|
||
|
// Work out what permissions should change...
|
||
|
$permission_change = array(
|
||
|
'post_new' => 'post_unapproved_topics',
|
||
|
'post_reply_own' => 'post_unapproved_replies_own',
|
||
|
'post_reply_any' => 'post_unapproved_replies_any',
|
||
|
'post_attachment' => 'post_unapproved_attachments',
|
||
|
);
|
||
|
foreach ($permission_change as $old => $new)
|
||
|
{
|
||
|
if (!in_array($old, $user_info['permissions']))
|
||
|
unset($permission_change[$old]);
|
||
|
else
|
||
|
$user_info['permissions'][] = $new;
|
||
|
}
|
||
|
$user_info['permissions'] = array_diff($user_info['permissions'], array_keys($permission_change));
|
||
|
}
|
||
|
|
||
|
//!!! Find a better place to call this? Needs to be after permissions loaded!
|
||
|
// Finally, some bits we cache in the session because it saves queries.
|
||
|
if (isset($_SESSION['mc']) && $_SESSION['mc']['time'] > $modSettings['settings_updated'] && ($_SESSION['mc']['id'] == $user_info['id'] || array_key_exists($_SESSION['mc']['id'], $user_info['subaccounts'])))
|
||
|
$user_info['mod_cache'] = $_SESSION['mc'];
|
||
|
else
|
||
|
{
|
||
|
require_once($sourcedir . '/Subs-Auth.php');
|
||
|
rebuildModCache();
|
||
|
}
|
||
|
|
||
|
// Now that we have the mod cache taken care of lets setup a cache for the number of mod reports still open
|
||
|
if (isset($_SESSION['rc']) && $_SESSION['rc']['time'] > $modSettings['last_mod_report_action'] && ($_SESSION['rc']['id'] == $user_info['id'] || array_key_exists($_SESSION['rc']['id'], $user_info['subaccounts'])))
|
||
|
$context['open_mod_reports'] = $_SESSION['rc']['reports'];
|
||
|
elseif ($_SESSION['mc']['bq'] != '0=1')
|
||
|
{
|
||
|
require_once($sourcedir . '/ModerationCenter.php');
|
||
|
recountOpenReports();
|
||
|
}
|
||
|
else
|
||
|
$context['open_mod_reports'] = 0;
|
||
|
}
|
||
|
|
||
|
// Log a ban in the database.
|
||
|
function log_ban($ban_ids = array(), $email = null)
|
||
|
{
|
||
|
global $user_info, $smcFunc;
|
||
|
|
||
|
// Don't log web accelerators, it's very confusing...
|
||
|
if (isset($_SERVER['HTTP_X_MOZ']) && $_SERVER['HTTP_X_MOZ'] == 'prefetch')
|
||
|
return;
|
||
|
|
||
|
$smcFunc['db_insert']('',
|
||
|
'{db_prefix}log_banned',
|
||
|
array('id_member' => 'int', 'ip' => 'string-16', 'email' => 'string', 'log_time' => 'int'),
|
||
|
array($user_info['id'], $user_info['ip'], ($email === null ? ($user_info['is_guest'] ? '' : $user_info['email']) : $email), time()),
|
||
|
array('id_ban_log')
|
||
|
);
|
||
|
|
||
|
// One extra point for these bans.
|
||
|
if (!empty($ban_ids))
|
||
|
$smcFunc['db_query']('', '
|
||
|
UPDATE {db_prefix}ban_items
|
||
|
SET hits = hits + 1
|
||
|
WHERE id_ban IN ({array_int:ban_ids})',
|
||
|
array(
|
||
|
'ban_ids' => $ban_ids,
|
||
|
)
|
||
|
);
|
||
|
}
|
||
|
|
||
|
// Checks if a given email address might be banned.
|
||
|
function isBannedEmail($email, $restriction, $error)
|
||
|
{
|
||
|
global $txt, $smcFunc;
|
||
|
|
||
|
// Can't ban an empty email
|
||
|
if (empty($email) || trim($email) == '')
|
||
|
return;
|
||
|
|
||
|
// Let's start with the bans based on your IP/hostname/memberID...
|
||
|
$ban_ids = isset($_SESSION['ban'][$restriction]) ? $_SESSION['ban'][$restriction]['ids'] : array();
|
||
|
$ban_reason = isset($_SESSION['ban'][$restriction]) ? $_SESSION['ban'][$restriction]['reason'] : '';
|
||
|
|
||
|
// ...and add to that the email address you're trying to register.
|
||
|
$request = $smcFunc['db_query']('', '
|
||
|
SELECT bi.id_ban, bg.' . $restriction . ', bg.cannot_access, 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 {string:email} LIKE bi.email_address
|
||
|
AND (bg.' . $restriction . ' = {int:cannot_access} OR bg.cannot_access = {int:cannot_access})
|
||
|
AND (bg.expire_time IS NULL OR bg.expire_time >= {int:now})',
|
||
|
array(
|
||
|
'email' => $email,
|
||
|
'cannot_access' => 1,
|
||
|
'now' => time(),
|
||
|
)
|
||
|
);
|
||
|
while ($row = $smcFunc['db_fetch_assoc']($request))
|
||
|
{
|
||
|
if (!empty($row['cannot_access']))
|
||
|
{
|
||
|
$_SESSION['ban']['cannot_access']['ids'][] = $row['id_ban'];
|
||
|
$_SESSION['ban']['cannot_access']['reason'] = $row['reason'];
|
||
|
}
|
||
|
if (!empty($row[$restriction]))
|
||
|
{
|
||
|
$ban_ids[] = $row['id_ban'];
|
||
|
$ban_reason = $row['reason'];
|
||
|
}
|
||
|
}
|
||
|
$smcFunc['db_free_result']($request);
|
||
|
|
||
|
// You're in biiig trouble. Banned for the rest of this session!
|
||
|
if (isset($_SESSION['ban']['cannot_access']))
|
||
|
{
|
||
|
log_ban($_SESSION['ban']['cannot_access']['ids']);
|
||
|
$_SESSION['ban']['last_checked'] = time();
|
||
|
|
||
|
fatal_error(sprintf($txt['your_ban'], $txt['guest_title']) . $_SESSION['ban']['cannot_access']['reason'], false);
|
||
|
}
|
||
|
|
||
|
if (!empty($ban_ids))
|
||
|
{
|
||
|
// Log this ban for future reference.
|
||
|
log_ban($ban_ids, $email);
|
||
|
fatal_error($error . $ban_reason, false);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Make sure the user's correct session was passed, and they came from here. (type can be post, get, or request.)
|
||
|
function checkSession($type = 'post', $from_action = '', $is_fatal = true)
|
||
|
{
|
||
|
global $sc, $modSettings, $boardurl;
|
||
|
|
||
|
// Is it in as $_POST['sc']?
|
||
|
if ($type == 'post')
|
||
|
{
|
||
|
$check = isset($_POST[$_SESSION['session_var']]) ? $_POST[$_SESSION['session_var']] : (empty($modSettings['strictSessionCheck']) && isset($_POST['sc']) ? $_POST['sc'] : null);
|
||
|
if ($check !== $sc)
|
||
|
$error = 'session_timeout';
|
||
|
}
|
||
|
|
||
|
// How about $_GET['sesc']?
|
||
|
elseif ($type == 'get')
|
||
|
{
|
||
|
$check = isset($_GET[$_SESSION['session_var']]) ? $_GET[$_SESSION['session_var']] : (empty($modSettings['strictSessionCheck']) && isset($_GET['sesc']) ? $_GET['sesc'] : null);
|
||
|
if ($check !== $sc)
|
||
|
$error = 'session_verify_fail';
|
||
|
}
|
||
|
|
||
|
// Or can it be in either?
|
||
|
elseif ($type == 'request')
|
||
|
{
|
||
|
$check = isset($_GET[$_SESSION['session_var']]) ? $_GET[$_SESSION['session_var']] : (empty($modSettings['strictSessionCheck']) && isset($_GET['sesc']) ? $_GET['sesc'] : (isset($_POST[$_SESSION['session_var']]) ? $_POST[$_SESSION['session_var']] : (empty($modSettings['strictSessionCheck']) && isset($_POST['sc']) ? $_POST['sc'] : null)));
|
||
|
|
||
|
if ($check !== $sc)
|
||
|
$error = 'session_verify_fail';
|
||
|
}
|
||
|
|
||
|
// Verify that they aren't changing user agents on us - that could be bad.
|
||
|
if ((!isset($_SESSION['USER_AGENT']) || $_SESSION['USER_AGENT'] != $_SERVER['HTTP_USER_AGENT']) && empty($modSettings['disableCheckUA']))
|
||
|
$error = 'session_verify_fail';
|
||
|
|
||
|
// Make sure a page with session check requirement is not being prefetched.
|
||
|
if (isset($_SERVER['HTTP_X_MOZ']) && $_SERVER['HTTP_X_MOZ'] == 'prefetch')
|
||
|
{
|
||
|
ob_end_clean();
|
||
|
header('HTTP/1.1 403 Forbidden');
|
||
|
die;
|
||
|
}
|
||
|
|
||
|
// Check the referring site - it should be the same server at least!
|
||
|
if (isset($_SESSION['request_referer']))
|
||
|
$referrer = $_SESSION['request_referer'];
|
||
|
else
|
||
|
$referrer = isset($_SERVER['HTTP_REFERER']) ? @parse_url($_SERVER['HTTP_REFERER']) : array();
|
||
|
if (!empty($referrer['host']))
|
||
|
{
|
||
|
if (strpos($_SERVER['HTTP_HOST'], ':') !== false)
|
||
|
$real_host = substr($_SERVER['HTTP_HOST'], 0, strpos($_SERVER['HTTP_HOST'], ':'));
|
||
|
else
|
||
|
$real_host = $_SERVER['HTTP_HOST'];
|
||
|
|
||
|
$parsed_url = parse_url($boardurl);
|
||
|
|
||
|
// Are global cookies on? If so, let's check them ;).
|
||
|
if (!empty($modSettings['globalCookies']))
|
||
|
{
|
||
|
if (preg_match('~(?:[^\.]+\.)?([^\.]{3,}\..+)\z~i', $parsed_url['host'], $parts) == 1)
|
||
|
$parsed_url['host'] = $parts[1];
|
||
|
|
||
|
if (preg_match('~(?:[^\.]+\.)?([^\.]{3,}\..+)\z~i', $referrer['host'], $parts) == 1)
|
||
|
$referrer['host'] = $parts[1];
|
||
|
|
||
|
if (preg_match('~(?:[^\.]+\.)?([^\.]{3,}\..+)\z~i', $real_host, $parts) == 1)
|
||
|
$real_host = $parts[1];
|
||
|
}
|
||
|
|
||
|
// Okay: referrer must either match parsed_url or real_host.
|
||
|
if (isset($parsed_url['host']) && strtolower($referrer['host']) != strtolower($parsed_url['host']) && strtolower($referrer['host']) != strtolower($real_host))
|
||
|
{
|
||
|
$error = 'verify_url_fail';
|
||
|
$log_error = true;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Well, first of all, if a from_action is specified you'd better have an old_url.
|
||
|
if (!empty($from_action) && (!isset($_SESSION['old_url']) || preg_match('~[?;&]action=' . $from_action . '([;&]|$)~', $_SESSION['old_url']) == 0))
|
||
|
{
|
||
|
$error = 'verify_url_fail';
|
||
|
$log_error = true;
|
||
|
}
|
||
|
|
||
|
if (strtolower($_SERVER['HTTP_USER_AGENT']) == 'hacker')
|
||
|
fatal_error('Sound the alarm! It\'s a hacker! Close the castle gates!!', false);
|
||
|
|
||
|
// Everything is ok, return an empty string.
|
||
|
if (!isset($error))
|
||
|
return '';
|
||
|
// A session error occurred, show the error.
|
||
|
elseif ($is_fatal)
|
||
|
{
|
||
|
if (isset($_GET['xml']))
|
||
|
{
|
||
|
ob_end_clean();
|
||
|
header('HTTP/1.1 403 Forbidden - Session timeout');
|
||
|
die;
|
||
|
}
|
||
|
else
|
||
|
fatal_lang_error($error, isset($log_error) ? 'user' : false);
|
||
|
}
|
||
|
// A session error occurred, return the error to the calling function.
|
||
|
else
|
||
|
return $error;
|
||
|
|
||
|
// We really should never fall through here, for very important reasons. Let's make sure.
|
||
|
trigger_error('Hacking attempt...', E_USER_ERROR);
|
||
|
}
|
||
|
|
||
|
// Check if a specific confirm parameter was given.
|
||
|
function checkConfirm($action)
|
||
|
{
|
||
|
global $modSettings;
|
||
|
|
||
|
if (isset($_GET['confirm']) && isset($_SESSION['confirm_' . $action]) && md5($_GET['confirm'] . $_SERVER['HTTP_USER_AGENT']) == $_SESSION['confirm_' . $action])
|
||
|
return true;
|
||
|
|
||
|
else
|
||
|
{
|
||
|
$token = md5(mt_rand() . session_id() . (string) microtime() . $modSettings['rand_seed']);
|
||
|
$_SESSION['confirm_' . $action] = md5($token . $_SERVER['HTTP_USER_AGENT']);
|
||
|
|
||
|
return $token;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Check whether a form has been submitted twice.
|
||
|
function checkSubmitOnce($action, $is_fatal = true)
|
||
|
{
|
||
|
global $context;
|
||
|
|
||
|
if (!isset($_SESSION['forms']))
|
||
|
$_SESSION['forms'] = array();
|
||
|
|
||
|
// Register a form number and store it in the session stack. (use this on the page that has the form.)
|
||
|
if ($action == 'register')
|
||
|
{
|
||
|
$context['form_sequence_number'] = 0;
|
||
|
while (empty($context['form_sequence_number']) || in_array($context['form_sequence_number'], $_SESSION['forms']))
|
||
|
$context['form_sequence_number'] = mt_rand(1, 16000000);
|
||
|
}
|
||
|
// Check whether the submitted number can be found in the session.
|
||
|
elseif ($action == 'check')
|
||
|
{
|
||
|
if (!isset($_REQUEST['seqnum']))
|
||
|
return true;
|
||
|
elseif (!in_array($_REQUEST['seqnum'], $_SESSION['forms']))
|
||
|
{
|
||
|
$_SESSION['forms'][] = (int) $_REQUEST['seqnum'];
|
||
|
return true;
|
||
|
}
|
||
|
elseif ($is_fatal)
|
||
|
fatal_lang_error('error_form_already_submitted', false);
|
||
|
else
|
||
|
return false;
|
||
|
}
|
||
|
// Don't check, just free the stack number.
|
||
|
elseif ($action == 'free' && isset($_REQUEST['seqnum']) && in_array($_REQUEST['seqnum'], $_SESSION['forms']))
|
||
|
$_SESSION['forms'] = array_diff($_SESSION['forms'], array($_REQUEST['seqnum']));
|
||
|
elseif ($action != 'free')
|
||
|
trigger_error('checkSubmitOnce(): Invalid action \'' . $action . '\'', E_USER_WARNING);
|
||
|
}
|
||
|
|
||
|
// Check the user's permissions.
|
||
|
function allowedTo($permission, $boards = null)
|
||
|
{
|
||
|
global $user_info, $modSettings, $smcFunc;
|
||
|
|
||
|
// You're always allowed to do nothing. (unless you're a working man, MR. LAZY :P!)
|
||
|
if (empty($permission))
|
||
|
return true;
|
||
|
|
||
|
// You're never allowed to do something if your data hasn't been loaded yet!
|
||
|
if (empty($user_info))
|
||
|
return false;
|
||
|
|
||
|
// Administrators are supermen :P.
|
||
|
if ($user_info['is_admin'])
|
||
|
return true;
|
||
|
|
||
|
// Are we checking the _current_ board, or some other boards?
|
||
|
if ($boards === null)
|
||
|
{
|
||
|
// Check if they can do it.
|
||
|
if (!is_array($permission) && in_array($permission, $user_info['permissions']))
|
||
|
return true;
|
||
|
// Search for any of a list of permissions.
|
||
|
elseif (is_array($permission) && count(array_intersect($permission, $user_info['permissions'])) != 0)
|
||
|
return true;
|
||
|
// You aren't allowed, by default.
|
||
|
else
|
||
|
return false;
|
||
|
}
|
||
|
elseif (!is_array($boards))
|
||
|
$boards = array($boards);
|
||
|
|
||
|
$request = $smcFunc['db_query']('', '
|
||
|
SELECT MIN(bp.add_deny) AS add_deny
|
||
|
FROM {db_prefix}boards AS b
|
||
|
INNER JOIN {db_prefix}board_permissions AS bp ON (bp.id_profile = b.id_profile)
|
||
|
LEFT JOIN {db_prefix}moderators AS mods ON (mods.id_board = b.id_board AND mods.id_member = {int:current_member})
|
||
|
WHERE b.id_board IN ({array_int:board_list})
|
||
|
AND bp.id_group IN ({array_int:group_list}, {int:moderator_group})
|
||
|
AND bp.permission {raw:permission_list}
|
||
|
AND (mods.id_member IS NOT NULL OR bp.id_group != {int:moderator_group})
|
||
|
GROUP BY b.id_board',
|
||
|
array(
|
||
|
'current_member' => $user_info['id'],
|
||
|
'board_list' => $boards,
|
||
|
'group_list' => $user_info['groups'],
|
||
|
'moderator_group' => 3,
|
||
|
'permission_list' => (is_array($permission) ? 'IN (\'' . implode('\', \'', $permission) . '\')' : ' = \'' . $permission . '\''),
|
||
|
)
|
||
|
);
|
||
|
|
||
|
// Make sure they can do it on all of the boards.
|
||
|
if ($smcFunc['db_num_rows']($request) != count($boards))
|
||
|
return false;
|
||
|
|
||
|
$result = true;
|
||
|
while ($row = $smcFunc['db_fetch_assoc']($request))
|
||
|
$result &= !empty($row['add_deny']);
|
||
|
$smcFunc['db_free_result']($request);
|
||
|
|
||
|
// If the query returned 1, they can do it... otherwise, they can't.
|
||
|
return $result;
|
||
|
}
|
||
|
|
||
|
// Fatal error if they cannot...
|
||
|
function isAllowedTo($permission, $boards = null)
|
||
|
{
|
||
|
global $user_info, $txt;
|
||
|
|
||
|
static $heavy_permissions = array(
|
||
|
'admin_forum',
|
||
|
'manage_attachments',
|
||
|
'manage_smileys',
|
||
|
'manage_boards',
|
||
|
'edit_news',
|
||
|
'moderate_forum',
|
||
|
'manage_bans',
|
||
|
'manage_membergroups',
|
||
|
'manage_permissions',
|
||
|
);
|
||
|
|
||
|
// Make it an array, even if a string was passed.
|
||
|
$permission = is_array($permission) ? $permission : array($permission);
|
||
|
|
||
|
// Check the permission and return an error...
|
||
|
if (!allowedTo($permission, $boards))
|
||
|
{
|
||
|
// Pick the last array entry as the permission shown as the error.
|
||
|
$error_permission = array_shift($permission);
|
||
|
|
||
|
// If they are a guest, show a login. (because the error might be gone if they do!)
|
||
|
if ($user_info['is_guest'])
|
||
|
{
|
||
|
loadLanguage('Errors');
|
||
|
is_not_guest($txt['cannot_' . $error_permission]);
|
||
|
}
|
||
|
|
||
|
// Clear the action because they aren't really doing that!
|
||
|
$_GET['action'] = '';
|
||
|
$_GET['board'] = '';
|
||
|
$_GET['topic'] = '';
|
||
|
writeLog(true);
|
||
|
|
||
|
fatal_lang_error('cannot_' . $error_permission, false);
|
||
|
|
||
|
// Getting this far is a really big problem, but let's try our best to prevent any cases...
|
||
|
trigger_error('Hacking attempt...', E_USER_ERROR);
|
||
|
}
|
||
|
|
||
|
// If you're doing something on behalf of some "heavy" permissions, validate your session.
|
||
|
// (take out the heavy permissions, and if you can't do anything but those, you need a validated session.)
|
||
|
if (!allowedTo(array_diff($permission, $heavy_permissions), $boards))
|
||
|
validateSession();
|
||
|
}
|
||
|
|
||
|
// Return the boards a user has a certain (board) permission on. (array(0) if all.)
|
||
|
function boardsAllowedTo($permissions, $check_access = true)
|
||
|
{
|
||
|
global $user_info, $modSettings, $smcFunc;
|
||
|
|
||
|
// Administrators are all powerful, sorry.
|
||
|
if ($user_info['is_admin'])
|
||
|
return array(0);
|
||
|
|
||
|
// Arrays are nice, most of the time.
|
||
|
if (!is_array($permissions))
|
||
|
$permissions = array($permissions);
|
||
|
|
||
|
// All groups the user is in except 'moderator'.
|
||
|
$groups = array_diff($user_info['groups'], array(3));
|
||
|
|
||
|
$request = $smcFunc['db_query']('', '
|
||
|
SELECT b.id_board, bp.add_deny
|
||
|
FROM {db_prefix}board_permissions AS bp
|
||
|
INNER JOIN {db_prefix}boards AS b ON (b.id_profile = bp.id_profile)
|
||
|
LEFT JOIN {db_prefix}moderators AS mods ON (mods.id_board = b.id_board AND mods.id_member = {int:current_member})
|
||
|
WHERE bp.id_group IN ({array_int:group_list}, {int:moderator_group})
|
||
|
AND bp.permission IN ({array_string:permissions})
|
||
|
AND (mods.id_member IS NOT NULL OR bp.id_group != {int:moderator_group})' .
|
||
|
($check_access ? ' AND {query_see_board}' : ''),
|
||
|
array(
|
||
|
'current_member' => $user_info['id'],
|
||
|
'group_list' => $groups,
|
||
|
'moderator_group' => 3,
|
||
|
'permissions' => $permissions,
|
||
|
)
|
||
|
);
|
||
|
$boards = array();
|
||
|
$deny_boards = array();
|
||
|
while ($row = $smcFunc['db_fetch_assoc']($request))
|
||
|
{
|
||
|
if (empty($row['add_deny']))
|
||
|
$deny_boards[] = $row['id_board'];
|
||
|
else
|
||
|
$boards[] = $row['id_board'];
|
||
|
}
|
||
|
$smcFunc['db_free_result']($request);
|
||
|
|
||
|
$boards = array_unique(array_values(array_diff($boards, $deny_boards)));
|
||
|
|
||
|
return $boards;
|
||
|
}
|
||
|
|
||
|
function showEmailAddress($userProfile_hideEmail, $userProfile_id)
|
||
|
{
|
||
|
global $modSettings, $user_info;
|
||
|
|
||
|
// Should this users email address be shown?
|
||
|
// If you're guest and the forum is set to hide email for guests: no.
|
||
|
// If the user is post-banned: no.
|
||
|
// If it's your own profile and you've set your address hidden: yes_permission_override.
|
||
|
// If you're a moderator with sufficient permissions: yes_permission_override.
|
||
|
// If the user has set their email address to be hidden: no.
|
||
|
// If the forum is set to show full email addresses: yes.
|
||
|
// Otherwise: no_through_forum.
|
||
|
|
||
|
return (!empty($modSettings['guest_hideContacts']) && $user_info['is_guest']) || isset($_SESSION['ban']['cannot_post']) ? 'no' : ((!$user_info['is_guest'] && $user_info['id'] == $userProfile_id && !$userProfile_hideEmail) || allowedTo('moderate_forum') ? 'yes_permission_override' : ($userProfile_hideEmail ? 'no' : (!empty($modSettings['make_email_viewable']) ? 'yes' : 'no_through_forum')));
|
||
|
}
|
||
|
|
||
|
?>
|