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[Phpbb-checkins] r9185 [3/4] - in /branches/acydburn/phpBB/includes: acm/index.php acp/auth.php auth.php auth/auth_db.php auth/db.php classes/acl.php classes/acl_admin.php classes/session.php classes/user.php core/core_security.php core/core_url.php session.php
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From: Meik S. <acy...@ph...> - 2008-12-11 17:43:12
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Added: branches/acydburn/phpBB/includes/classes/session.php ============================================================================== *** branches/acydburn/phpBB/includes/classes/session.php (added) --- branches/acydburn/phpBB/includes/classes/session.php Thu Dec 11 17:39:51 2008 *************** *** 0 **** --- 1,1423 ---- + <?php + /** + * + * @package phpBB3 + * @version $Id$ + * @copyright (c) 2005 phpBB Group + * @license http://opensource.org/licenses/gpl-license.php GNU Public License + * + */ + + /** + * @ignore + */ + if (!defined('IN_PHPBB')) + { + exit; + } + + class phpbb_server + { + /** + * Get valid hostname/port. HTTP_HOST is used, SERVER_NAME if HTTP_HOST not present. + */ + public static function get_host() + { + // Get hostname + $host = (!empty($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : ((!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : getenv('SERVER_NAME')); + + // Should be a string and lowered + $host = (string) strtolower($host); + + // If host is equal the cookie domain or the server name (if config is set), then we assume it is valid + if ((isset(phpbb::$config['cookie_domain']) && $host === phpbb::$config['cookie_domain']) || (isset(phpbb::$config['server_name']) && $host === phpbb::$config['server_name'])) + { + return $host; + } + + // Is the host actually a IP? If so, we use the IP... (IPv4) + if (long2ip(ip2long($host)) === $host) + { + return $host; + } + + // Now return the hostname (this also removes any port definition). The http:// is prepended to construct a valid URL, hosts never have a scheme assigned + $host = @parse_url('http://' . $host, PHP_URL_HOST); + + // Remove any portions not removed by parse_url (#) + $host = str_replace('#', '', $host); + + // If, by any means, the host is now empty, we will use a "best approach" way to guess one + if (empty($host)) + { + if (!empty(phpbb::$config['server_name'])) + { + $host = phpbb::$config['server_name']; + } + else if (!empty(phpbb::$config['cookie_domain'])) + { + $host = (strpos(phpbb::$config['cookie_domain'], '.') === 0) ? substr(phpbb::$config['cookie_domain'], 1) : phpbb::$config['cookie_domain']; + } + else + { + // Set to OS hostname or localhost + $host = (function_exists('php_uname')) ? php_uname('n') : 'localhost'; + } + } + + // It may be still no valid host, but for sure only a hostname (we may further expand on the cookie domain... if set) + return $host; + } + + /** + * Extract current session page, relative from current root path (PHPBB_ROOT_PATH) + */ + public static function get_page() + { + $page_array = array(); + + // First of all, get the request uri... + $script_name = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : getenv('PHP_SELF'); + $args = (!empty($_SERVER['QUERY_STRING'])) ? explode('&', $_SERVER['QUERY_STRING']) : explode('&', getenv('QUERY_STRING')); + + // If we are unable to get the script name we use REQUEST_URI as a failover and note it within the page array for easier support... + if (!$script_name) + { + $script_name = (!empty($_SERVER['REQUEST_URI'])) ? $_SERVER['REQUEST_URI'] : getenv('REQUEST_URI'); + $script_name = (($pos = strpos($script_name, '?')) !== false) ? substr($script_name, 0, $pos) : $script_name; + $page_array['failover'] = 1; + } + + // Replace backslashes and doubled slashes (could happen on some proxy setups) + $script_name = str_replace(array('\\', '//'), '/', $script_name); + + // Now, remove the sid and let us get a clean query string... + $use_args = array(); + + // Since some browser do not encode correctly we need to do this with some "special" characters... + // " -> %22, ' => %27, < -> %3C, > -> %3E + $find = array('"', "'", '<', '>'); + $replace = array('%22', '%27', '%3C', '%3E'); + + foreach ($args as $argument) + { + if (strpos($argument, 'sid=') === 0) + { + continue; + } + + $use_args[] = str_replace($find, $replace, $argument); + } + unset($args); + + // The following examples given are for an request uri of {path to the phpbb directory}/adm/index.php?i=10&b=2 + + // The current query string + $query_string = trim(implode('&', $use_args)); + + // basenamed page name (for example: index.php) + $page_name = basename($script_name); + $page_name = urlencode(htmlspecialchars($page_name)); + + // current directory within the phpBB root (for example: adm) + $root_dirs = explode('/', str_replace('\\', '/', phpbb::$url->realpath(PHPBB_ROOT_PATH))); + $page_dirs = explode('/', str_replace('\\', '/', phpbb::$url->realpath('./'))); + $intersection = array_intersect_assoc($root_dirs, $page_dirs); + + $root_dirs = array_diff_assoc($root_dirs, $intersection); + $page_dirs = array_diff_assoc($page_dirs, $intersection); + + $page_dir = str_repeat('../', sizeof($root_dirs)) . implode('/', $page_dirs); + + if ($page_dir && substr($page_dir, -1, 1) == '/') + { + $page_dir = substr($page_dir, 0, -1); + } + + // Current page from phpBB root (for example: adm/index.php?i=10&b=2) + $page = (($page_dir) ? $page_dir . '/' : '') . $page_name . (($query_string) ? "?$query_string" : ''); + + // The script path from the webroot to the current directory (for example: /phpBB3/adm/) : always prefixed with / and ends in / + $script_path = trim(str_replace('\\', '/', dirname($script_name))); + + // The script path from the webroot to the phpBB root (for example: /phpBB3/) + $script_dirs = explode('/', $script_path); + array_splice($script_dirs, -sizeof($page_dirs)); + $root_script_path = implode('/', $script_dirs) . (sizeof($root_dirs) ? '/' . implode('/', $root_dirs) : ''); + + // We are on the base level (phpBB root == webroot), lets adjust the variables a bit... + if (!$root_script_path) + { + $root_script_path = ($page_dir) ? str_replace($page_dir, '', $script_path) : $script_path; + } + + $script_path .= (substr($script_path, -1, 1) == '/') ? '' : '/'; + $root_script_path .= (substr($root_script_path, -1, 1) == '/') ? '' : '/'; + + $page_array += array( + 'page_name' => $page_name, + 'page_dir' => $page_dir, + + 'query_string' => $query_string, + 'script_path' => str_replace(' ', '%20', htmlspecialchars($script_path)), + 'root_script_path' => str_replace(' ', '%20', htmlspecialchars($root_script_path)), + + 'page' => $page, + 'forum' => request_var('f', 0), + ); + + return $page_array; + } + + public static function get_browser() + { + return (!empty($_SERVER['HTTP_USER_AGENT'])) ? htmlspecialchars((string) $_SERVER['HTTP_USER_AGENT']) : ''; + } + + public static function get_referer() + { + return (!empty($_SERVER['HTTP_REFERER'])) ? htmlspecialchars((string) $_SERVER['HTTP_REFERER']) : ''; + } + + public static function get_port() + { + return (!empty($_SERVER['SERVER_PORT'])) ? (int) $_SERVER['SERVER_PORT'] : (int) getenv('SERVER_PORT'); + } + + public static function get_forwarded_for() + { + $forwarded_for = (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) ? (string) $_SERVER['HTTP_X_FORWARDED_FOR'] : ''; + + // if the forwarded for header shall be checked we have to validate its contents + if (phpbb::$config['forwarded_for_check']) + { + $forwarded_for = preg_replace('#, +#', ', ', $forwarded_for); + + // split the list of IPs + $ips = explode(', ', $forwarded_for); + foreach ($ips as $ip) + { + // check IPv4 first, the IPv6 is hopefully only going to be used very seldomly + if (!empty($ip) && !preg_match(get_preg_expression('ipv4'), $ip) && !preg_match(get_preg_expression('ipv6'), $ip)) + { + // contains invalid data, don't use the forwarded for header + return ''; + } + } + } + else + { + return ''; + } + } + + public static function get_ip() + { + // Why no forwarded_for et al? Well, too easily spoofed. With the results of my recent requests + // it's pretty clear that in the majority of cases you'll at least be left with a proxy/cache ip. + return (!empty($_SERVER['REMOTE_ADDR'])) ? htmlspecialchars($_SERVER['REMOTE_ADDR']) : ''; + } + + public static function get_load() + { + $load = false; + + // Load limit check (if applicable) + if (phpbb::$config['limit_load'] || phpbb::$config['limit_search_load']) + { + if ((function_exists('sys_getloadavg') && $load = sys_getloadavg()) || ($load = explode(' ', @file_get_contents('/proc/loadavg')))) + { + $load = array_slice($load, 0, 1); + $load = floatval($load[0]); + } + else + { + set_config('limit_load', '0'); + set_config('limit_search_load', '0'); + } + } + + return $load; + } + + public static function get_request_method() + { + return (isset($_SERVER['REQUEST_METHOD'])) ? strtolower(htmlspecialchars((string) $_SERVER['REQUEST_METHOD'])) : ''; + } + } + + /** + * Session class + * @package phpBB3 + */ + class phpbb_session + { + private $cookie_data = array(); + + public $data = array(); + public $server = array(); + public $session_id = ''; + public $time_now = 0; + public $update_session_page = true; + + public $auth = NULL; + + public $is_registered = false; + public $is_bot = false; + + public function __construct() + { + // Reset data array ;) + $this->data = array(); + + // Init auth object + $method = basename(trim(phpbb::$config['auth_method'])); + $class = 'phpbb_auth_' . $method; + $this->auth = new $class(); + } + + /** + * Start session management + * + * This is where all session activity begins. We gather various pieces of + * information from the client and server. We test to see if a session already + * exists. If it does, fine and dandy. If it doesn't we'll go on to create a + * new one ... pretty logical heh? We also examine the system load (if we're + * running on a system which makes such information readily available) and + * halt if it's above an admin definable limit. + * + * @param bool $update_session_page if true the session page gets updated. + * This can be set to circumvent certain scripts to update the users last visited page. + */ + public function session_begin($update_session_page = true) + { + global $SID, $_SID, $_EXTRA_URL; + + // Give us some basic information + $this->time_now = time(); + $this->cookie_data = array('u' => 0, 'k' => ''); + $this->update_session_page = $update_session_page; + + // Some server variables, directly generated by phpbb_server methods + $this->server = array(); + + foreach (get_class_methods('phpbb_server') as $method) + { + if (strpos($method, 'get_') !== 0) + { + continue; + } + + $this->server[substr($method, 4)] = phpbb_server::$method(); + } + + if (request::is_set(phpbb::$config['cookie_name'] . '_sid', request::COOKIE) || request::is_set(phpbb::$config['cookie_name'] . '_u', request::COOKIE)) + { + $this->cookie_data['u'] = request_var(phpbb::$config['cookie_name'] . '_u', 0, false, true); + $this->cookie_data['k'] = request_var(phpbb::$config['cookie_name'] . '_k', '', false, true); + $this->session_id = request_var(phpbb::$config['cookie_name'] . '_sid', '', false, true); + + $SID = (defined('NEED_SID')) ? '?sid=' . $this->session_id : '?sid='; + $_SID = (defined('NEED_SID')) ? $this->session_id : ''; + + if (empty($this->session_id)) + { + $this->session_id = $_SID = request_var('sid', ''); + $SID = '?sid=' . $this->session_id; + $this->cookie_data = array('u' => 0, 'k' => ''); + } + } + else + { + $this->session_id = $_SID = request_var('sid', ''); + $SID = '?sid=' . $this->session_id; + } + + $_EXTRA_URL = array(); + + // Now check for an existing session + if ($this->session_exist()) + { + return true; + } + + // If we reach here then no (valid) session exists. So we'll create a new one + return $this->session_create(); + } + + /** + * Create a new session + * + * If upon trying to start a session we discover there is nothing existing we + * jump here. Additionally this method is called directly during login to regenerate + * the session for the specific user. In this method we carry out a number of tasks; + * garbage collection, (search)bot checking, banned user comparison. Basically + * though this method will result in a new session for a specific user. + */ + public function session_create($user_id = false, $set_admin = false, $persist_login = false, $viewonline = true) + { + global $SID, $_SID; + + // There is one case where we need to add a "failsafe" user... when we are not able to query the database + if (!phpbb::registered('db')) + { + $this->data = $this->default_data(); + return true; + } + + // If the data array is filled, chances are high that there was a different session active + if (sizeof($this->data)) + { + // Kill the session and do not create a new one + $this->session_kill(false); + } + + $this->data = array(); + + /* Garbage collection ... remove old sessions updating user information + // if necessary. It means (potentially) 11 queries but only infrequently + if ($this->time_now > phpbb::$config['session_last_gc'] + phpbb::$config['session_gc']) + { + $this->session_gc(); + }*/ + + // Do we allow autologin on this board? No? Then override anything + // that may be requested here + if (!phpbb::$config['allow_autologin']) + { + $this->cookie_data['k'] = $persist_login = false; + } + + // Check for autologin key. ;) + if (method_exists($this->auth, 'autologin')) + { + $this->data = $this->auth->autologin(); + + if (sizeof($this->data)) + { + $this->cookie_data['k'] = ''; + $this->cookie_data['u'] = $this->data['user_id']; + } + } + + // NULL indicates we need to check for a bot later. Sometimes it is apparant that it is not a bot. ;) No need to always check this. + $bot = NULL; + + // If we're presented with an autologin key we'll join against it. + // Else if we've been passed a user_id we'll grab data based on that + if (isset($this->cookie_data['k']) && $this->cookie_data['k'] && $this->cookie_data['u'] && !sizeof($this->data)) + { + $sql = 'SELECT u.* + FROM ' . USERS_TABLE . ' u, ' . SESSIONS_KEYS_TABLE . ' k + WHERE u.user_id = ' . (int) $this->cookie_data['u'] . ' + AND u.user_type IN (' . USER_NORMAL . ', ' . USER_FOUNDER . ") + AND k.user_id = u.user_id + AND k.key_id = '" . phpbb::$db->sql_escape(md5($this->cookie_data['k'])) . "'"; + $result = phpbb::$db->sql_query($sql); + $this->data = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + $bot = false; + } + else if ($user_id !== false && !sizeof($this->data)) + { + $this->cookie_data['k'] = ''; + $this->cookie_data['u'] = $user_id; + + $sql = 'SELECT * + FROM ' . USERS_TABLE . ' + WHERE user_id = ' . (int) $this->cookie_data['u'] . ' + AND user_type IN (' . USER_NORMAL . ', ' . USER_FOUNDER . ')'; + $result = phpbb::$db->sql_query($sql); + $this->data = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + $bot = false; + } + + /** + * Here we do a bot check, oh er saucy! No, not that kind of bot + * check. We loop through the list of bots defined by the admin and + * see if we have any useragent and/or IP matches. If we do, this is a + * bot, act accordingly + */ + if ($bot === NULL) + { + $bot = $this->check_bot(); + } + + // If no data was returned one or more of the following occurred: + // Key didn't match one in the DB + // User does not exist + // User is inactive + // User is bot + if (!sizeof($this->data) || !is_array($this->data)) + { + $this->cookie_data['k'] = ''; + $this->cookie_data['u'] = ($bot) ? $bot : ANONYMOUS; + + if (!$bot) + { + $sql = 'SELECT * + FROM ' . USERS_TABLE . ' + WHERE user_id = ' . (int) $this->cookie_data['u']; + } + else + { + // We give bots always the same session if it is not yet expired. + $sql = 'SELECT u.*, s.* + FROM ' . USERS_TABLE . ' u + LEFT JOIN ' . SESSIONS_TABLE . ' s ON (s.session_user_id = u.user_id) + WHERE u.user_id = ' . (int) $bot; + } + + $result = phpbb::$db->sql_query($sql); + $this->data = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + $this->is_registered = false; + } + else + { + $this->is_registered = true; + } + + // Force user id to be integer... + $this->data['user_id'] = (int) $this->data['user_id']; + + // Code for ANONYMOUS user, INACTIVE user and BOTS + if (!$this->is_registered) + { + // Set last visit date to 'now' + $this->data['session_last_visit'] = $this->time_now; + $this->is_bot = ($bot) ? true : false; + + // If our friend is a bot, we re-assign a previously assigned session + if ($this->is_bot && $bot == $this->data['user_id'] && $this->data['session_id']) + { + if ($this->session_valid(false)) + { + $this->session_id = $this->data['session_id']; + + // Only update session DB a minute or so after last update or if page changes + if ($this->time_now - $this->data['session_time'] > 60 || ($this->update_session_page && $this->data['session_page'] != $this->server['page']['page'])) + { + $this->data['session_time'] = $this->data['session_last_visit'] = $this->time_now; + $sql_ary = array('session_time' => $this->time_now, 'session_last_visit' => $this->time_now, 'session_admin' => 0); + + if ($this->update_session_page) + { + $sql_ary['session_page'] = substr($this->server['page']['page'], 0, 199); + } + + $sql = 'UPDATE ' . SESSIONS_TABLE . ' SET ' . phpbb::$db->sql_build_array('UPDATE', $sql_ary) . " + WHERE session_id = '" . phpbb::$db->sql_escape($this->session_id) . "'"; + phpbb::$db->sql_query($sql); + + // Update the last visit time + $sql = 'UPDATE ' . USERS_TABLE . ' + SET user_lastvisit = ' . (int) $this->data['session_time'] . ' + WHERE user_id = ' . (int) $this->data['user_id']; + phpbb::$db->sql_query($sql); + } + + $SID = '?sid='; + $_SID = ''; + + return true; + } + else + { + // If the ip and browser does not match make sure we only have one bot assigned to one session + phpbb::$db->sql_query('DELETE FROM ' . SESSIONS_TABLE . ' WHERE session_user_id = ' . $this->data['user_id']); + } + } + } + else + { + // Code for registered users + $this->data['session_last_visit'] = (!empty($this->data['session_time'])) ? $this->data['session_time'] : (($this->data['user_lastvisit']) ? $this->data['user_lastvisit'] : $this->time_now); + $this->is_bot = false; + } + + // At this stage we should have a filled data array, defined cookie u and k data. + // data array should contain recent session info if we're a real user and a recent + // session exists in which case session_id will also be set + + // Is user banned? Are they excluded? Won't return on ban, exists within method + if ($this->data['user_type'] != USER_FOUNDER) + { + if (!phpbb::$config['forwarded_for_check']) + { + $this->check_ban($this->data['user_id'], $this->server['ip']); + } + else + { + $ips = explode(', ', $this->forwarded_for); + $ips[] = $this->server['ip']; + $this->check_ban($this->data['user_id'], $ips); + } + } + + $session_autologin = (($this->cookie_data['k'] || $persist_login) && $this->is_registered) ? true : false; + $set_admin = ($set_admin && $this->is_registered) ? true : false; + + // Create or update the session + $sql_ary = array( + 'session_user_id' => (int) $this->data['user_id'], + 'session_start' => (int) $this->time_now, + 'session_last_visit' => (int) $this->data['session_last_visit'], + 'session_time' => (int) $this->time_now, + 'session_browser' => (string) trim(substr($this->server['browser'], 0, 149)), + 'session_forwarded_for' => (string) $this->server['forwarded_for'], + 'session_ip' => (string) $this->server['ip'], + 'session_autologin' => ($session_autologin) ? 1 : 0, + 'session_admin' => ($set_admin) ? 1 : 0, + 'session_viewonline' => ($viewonline) ? 1 : 0, + ); + + if ($this->update_session_page) + { + $sql_ary['session_page'] = (string) substr($this->server['page']['page'], 0, 199); + } + + phpbb::$db->sql_return_on_error(true); + + // Delete old session, if user id now different from anonymous + if (!defined('IN_ERROR_HANDLER')) + { + // We do not care about the user id, because we assign a new session later + $sql = 'DELETE + FROM ' . SESSIONS_TABLE . " + WHERE session_id = '" . phpbb::$db->sql_escape($this->session_id) . "'"; + $result = phpbb::$db->sql_query($sql); + + // If there were no sessions or the session id empty (then the affected rows will be empty too), then we have a brand new session and can check the active sessions limit + if ((!$result || !phpbb::$db->sql_affectedrows()) && (empty($this->data['session_time']) && phpbb::$config['active_sessions'])) + { + $sql = 'SELECT COUNT(session_id) AS sessions + FROM ' . SESSIONS_TABLE . ' + WHERE session_time >= ' . ($this->time_now - 60); + $result = phpbb::$db->sql_query($sql); + $row = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + if ((int) $row['sessions'] > (int) phpbb::$config['active_sessions']) + { + header('HTTP/1.1 503 Service Unavailable'); + trigger_error('BOARD_UNAVAILABLE'); + } + } + } + + $this->session_id = $this->data['session_id'] = md5(phpbb::$security->unique_id()); + + $sql_ary['session_id'] = (string) $this->session_id; + + $sql = 'INSERT INTO ' . SESSIONS_TABLE . ' ' . phpbb::$db->sql_build_array('INSERT', $sql_ary); + phpbb::$db->sql_query($sql); + + phpbb::$db->sql_return_on_error(false); + + // Regenerate autologin/persistent login key + if ($session_autologin) + { + $this->set_login_key(); + } + + // refresh data + $SID = '?sid=' . $this->session_id; + $_SID = $this->session_id; + $this->data = array_merge($this->data, $sql_ary); + + if (!$bot) + { + $cookie_expire = $this->time_now + ((phpbb::$config['max_autologin_time']) ? 86400 * (int) phpbb::$config['max_autologin_time'] : 31536000); + + $this->set_cookie('u', $this->cookie_data['u'], $cookie_expire); + $this->set_cookie('k', $this->cookie_data['k'], $cookie_expire); + $this->set_cookie('sid', $this->session_id, $cookie_expire); + + unset($cookie_expire); + + // Only one session entry present... + $sql = 'SELECT COUNT(session_id) AS sessions + FROM ' . SESSIONS_TABLE . ' + WHERE session_user_id = ' . (int) $this->data['user_id'] . ' + AND session_time >= ' . (int) ($this->time_now - (max(phpbb::$config['session_length'], phpbb::$config['form_token_lifetime']))); + $result = phpbb::$db->sql_query($sql); + $row = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + if ((int) $row['sessions'] <= 1 || empty($this->data['user_form_salt'])) + { + $this->data['user_form_salt'] = phpbb::$security->unique_id(); + + // Update the form key + $sql = 'UPDATE ' . USERS_TABLE . ' + SET user_form_salt = \'' . phpbb::$db->sql_escape($this->data['user_form_salt']) . '\' + WHERE user_id = ' . (int) $this->data['user_id']; + phpbb::$db->sql_query($sql); + } + } + else + { + $this->data['session_time'] = $this->data['session_last_visit'] = $this->time_now; + + // Update the last visit time + $sql = 'UPDATE ' . USERS_TABLE . ' + SET user_lastvisit = ' . (int) $this->data['session_time'] . ' + WHERE user_id = ' . (int) $this->data['user_id']; + phpbb::$db->sql_query($sql); + + $SID = '?sid='; + $_SID = ''; + } + + return true; + } + + /** + * Kills a session + * + * This method does what it says on the tin. It will delete a pre-existing session. + * It resets cookie information (destroying any autologin key within that cookie data) + * and update the users information from the relevant session data. It will then + * grab guest user information. + */ + public function session_kill($new_session = true) + { + global $SID, $_SID; + + $sql = 'DELETE FROM ' . SESSIONS_TABLE . " + WHERE session_id = '" . phpbb::$db->sql_escape($this->session_id) . "' + AND session_user_id = " . (int) $this->data['user_id']; + phpbb::$db->sql_query($sql); + + // Allow connecting logout with external auth method logout + if (method_exists($this->auth, 'logout')) + { + $this->auth->logout($this, $new_session); + } + + if ($this->data['user_id'] != ANONYMOUS) + { + // Delete existing session, update last visit info first! + if (!isset($this->data['session_time'])) + { + $this->data['session_time'] = time(); + } + + $sql = 'UPDATE ' . USERS_TABLE . ' + SET user_lastvisit = ' . (int) $this->data['session_time'] . ' + WHERE user_id = ' . (int) $this->data['user_id']; + phpbb::$db->sql_query($sql); + + if ($this->cookie_data['k']) + { + $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' + WHERE user_id = ' . (int) $this->data['user_id'] . " + AND key_id = '" . phpbb::$db->sql_escape(md5($this->cookie_data['k'])) . "'"; + phpbb::$db->sql_query($sql); + } + + // Reset the data array + $this->data = array(); + + $sql = 'SELECT * + FROM ' . USERS_TABLE . ' + WHERE user_id = ' . ANONYMOUS; + $result = phpbb::$db->sql_query($sql); + $this->data = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + } + + $cookie_expire = $this->time_now - 31536000; + $this->set_cookie('u', '', $cookie_expire); + $this->set_cookie('k', '', $cookie_expire); + $this->set_cookie('sid', '', $cookie_expire); + unset($cookie_expire); + + $SID = '?sid='; + $this->session_id = $_SID = ''; + + // To make sure a valid session is created we create one for the anonymous user + if ($new_session) + { + $this->session_create(ANONYMOUS); + } + + return true; + } + + /** + * Session garbage collection + * + * This looks a lot more complex than it really is. Effectively we are + * deleting any sessions older than an admin definable limit. Due to the + * way in which we maintain session data we have to ensure we update user + * data before those sessions are destroyed. In addition this method + * removes autologin key information that is older than an admin defined + * limit. + */ + public function session_gc() + { + $batch_size = 10; + + if (!$this->time_now) + { + $this->time_now = time(); + } + + // Firstly, delete guest sessions + $sql = 'DELETE FROM ' . SESSIONS_TABLE . ' + WHERE session_user_id = ' . ANONYMOUS . ' + AND session_time < ' . (int) ($this->time_now - phpbb::$config['session_length']); + phpbb::$db->sql_query($sql); + + // Get expired sessions, only most recent for each user + $sql = 'SELECT session_user_id, session_page, MAX(session_time) AS recent_time + FROM ' . SESSIONS_TABLE . ' + WHERE session_time < ' . ($this->time_now - phpbb::$config['session_length']) . ' + GROUP BY session_user_id, session_page'; + $result = phpbb::$db->sql_query_limit($sql, $batch_size); + + $del_user_id = array(); + $del_sessions = 0; + + while ($row = phpbb::$db->sql_fetchrow($result)) + { + $sql = 'UPDATE ' . USERS_TABLE . ' + SET user_lastvisit = ' . (int) $row['recent_time'] . ", user_lastpage = '" . phpbb::$db->sql_escape($row['session_page']) . "' + WHERE user_id = " . (int) $row['session_user_id']; + phpbb::$db->sql_query($sql); + + $del_user_id[] = (int) $row['session_user_id']; + $del_sessions++; + } + phpbb::$db->sql_freeresult($result); + + if (sizeof($del_user_id)) + { + // Delete expired sessions + $sql = 'DELETE FROM ' . SESSIONS_TABLE . ' + WHERE ' . phpbb::$db->sql_in_set('session_user_id', $del_user_id) . ' + AND session_time < ' . ($this->time_now - phpbb::$config['session_length']); + phpbb::$db->sql_query($sql); + } + + if ($del_sessions < $batch_size) + { + // Less than 10 users, update gc timer ... else we want gc + // called again to delete other sessions + set_config('session_last_gc', $this->time_now, true); + + if (phpbb::$config['max_autologin_time']) + { + $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' + WHERE last_login < ' . (time() - (86400 * (int) phpbb::$config['max_autologin_time'])); + phpbb::$db->sql_query($sql); + } + + // only called from CRON; should be a safe workaround until the infrastructure gets going + if (!class_exists('captcha_factory')) + { + include(PHPBB_ROOT_PATH . "includes/captcha/captcha_factory." . PHP_EXT); + } + captcha_factory::garbage_collect(phpbb::$config['captcha_plugin']); + } + + return; + } + + + /** + * Sets a cookie + * + * Sets a cookie of the given name with the specified data for the given length of time. If no time is specified, a session cookie will be set. + * + * @param string $name Name of the cookie, will be automatically prefixed with the phpBB cookie name. track becomes [cookie_name]_track then. + * @param string $cookiedata The data to hold within the cookie + * @param int $cookietime The expiration time as UNIX timestamp. If 0 is provided, a session cookie is set. + */ + public function set_cookie($name, $cookiedata, $cookietime) + { + $name_data = rawurlencode(phpbb::$config['cookie_name'] . '_' . $name) . '=' . rawurlencode($cookiedata); + $expire = gmdate('D, d-M-Y H:i:s \\G\\M\\T', $cookietime); + $domain = (!phpbb::$config['cookie_domain'] || phpbb::$config['cookie_domain'] == 'localhost' || phpbb::$config['cookie_domain'] == '127.0.0.1') ? '' : '; domain=' . phpbb::$config['cookie_domain']; + + header('Set-Cookie: ' . $name_data . (($cookietime) ? '; expires=' . $expire : '') . '; path=' . phpbb::$config['cookie_path'] . $domain . ((!phpbb::$config['cookie_secure']) ? '' : '; secure') . '; HttpOnly', false); + } + + /** + * Check for banned user + * + * Checks whether the supplied user is banned by id, ip or email. If no parameters + * are passed to the method pre-existing session data is used. If $return is false + * this routine does not return on finding a banned user, it outputs a relevant + * message and stops execution. + * + * @param string|array $user_ips Can contain a string with one IP or an array of multiple IPs + */ + public function check_ban($user_id = false, $user_ips = false, $user_email = false, $return = false) + { + if (defined('IN_CHECK_BAN')) + { + return; + } + + $banned = false; + $cache_ttl = 3600; + $where_sql = array(); + + $sql = 'SELECT ban_ip, ban_userid, ban_email, ban_exclude, ban_give_reason, ban_end + FROM ' . BANLIST_TABLE . ' + WHERE '; + + // Determine which entries to check, only return those + if ($user_email === false) + { + $where_sql[] = "ban_email = ''"; + } + + if ($user_ips === false) + { + $where_sql[] = "(ban_ip = '' OR ban_exclude = 1)"; + } + + if ($user_id === false) + { + $where_sql[] = '(ban_userid = 0 OR ban_exclude = 1)'; + } + else + { + $cache_ttl = ($user_id == ANONYMOUS) ? 3600 : 0; + $_sql = '(ban_userid = ' . $user_id; + + if ($user_email !== false) + { + $_sql .= " OR ban_email <> ''"; + } + + if ($user_ips !== false) + { + $_sql .= " OR ban_ip <> ''"; + } + + $_sql .= ')'; + + $where_sql[] = $_sql; + } + + $sql .= (sizeof($where_sql)) ? implode(' AND ', $where_sql) : ''; + $result = phpbb::$db->sql_query($sql, $cache_ttl); + + $ban_triggered_by = 'user'; + while ($row = phpbb::$db->sql_fetchrow($result)) + { + if ($row['ban_end'] && $row['ban_end'] < time()) + { + continue; + } + + $ip_banned = false; + if (!empty($row['ban_ip'])) + { + if (!is_array($user_ips)) + { + $ip_banned = preg_match('#^' . str_replace('\*', '.*?', preg_quote($row['ban_ip'], '#')) . '$#i', $user_ips); + } + else + { + foreach ($user_ips as $user_ip) + { + if (preg_match('#^' . str_replace('\*', '.*?', preg_quote($row['ban_ip'], '#')) . '$#i', $user_ip)) + { + $ip_banned = true; + break; + } + } + } + } + + if ((!empty($row['ban_userid']) && intval($row['ban_userid']) == $user_id) || + $ip_banned || + (!empty($row['ban_email']) && preg_match('#^' . str_replace('\*', '.*?', preg_quote($row['ban_email'], '#')) . '$#i', $user_email))) + { + if (!empty($row['ban_exclude'])) + { + $banned = false; + break; + } + else + { + $banned = true; + $ban_row = $row; + + if (!empty($row['ban_userid']) && intval($row['ban_userid']) == $user_id) + { + $ban_triggered_by = 'user'; + } + else if ($ip_banned) + { + $ban_triggered_by = 'ip'; + } + else + { + $ban_triggered_by = 'email'; + } + + // Don't break. Check if there is an exclude rule for this user + } + } + } + phpbb::$db->sql_freeresult($result); + + if ($banned && !$return) + { + // If the session is empty we need to create a valid one... + if (empty($this->session_id)) + { + // This seems to be no longer needed? - #14971 + // $this->session_create(ANONYMOUS); + } + + // Initiate environment ... since it won't be set at this stage + $this->setup(); + + // Logout the user, banned users are unable to use the normal 'logout' link + if ($this->data['user_id'] != ANONYMOUS) + { + $this->session_kill(); + } + + // We show a login box here to allow founders accessing the board if banned by IP + if (defined('IN_LOGIN') && $this->data['user_id'] == ANONYMOUS) + { + $this->setup('ucp'); + $this->is_registered = $this->is_bot = false; + + // Set as a precaution to allow login_box() handling this case correctly as well as this function not being executed again. + define('IN_CHECK_BAN', 1); + + login_box('index.' . PHP_EXT); + + // The false here is needed, else the user is able to circumvent the ban. + $this->session_kill(false); + } + + // Ok, we catch the case of an empty session id for the anonymous user... + // This can happen if the user is logging in, banned by username and the login_box() being called "again". + if (empty($this->session_id) && defined('IN_CHECK_BAN')) + { + $this->session_create(ANONYMOUS); + } + + + // Determine which message to output + $till_date = ($ban_row['ban_end']) ? $this->format_date($ban_row['ban_end']) : ''; + $message = ($ban_row['ban_end']) ? 'BOARD_BAN_TIME' : 'BOARD_BAN_PERM'; + + $message = sprintf($this->lang[$message], $till_date, '<a href="mailto:' . phpbb::$config['board_contact'] . '">', '</a>'); + $message .= ($ban_row['ban_give_reason']) ? '<br /><br />' . sprintf($this->lang['BOARD_BAN_REASON'], $ban_row['ban_give_reason']) : ''; + $message .= '<br /><br /><em>' . $this->lang['BAN_TRIGGERED_BY_' . strtoupper($ban_triggered_by)] . '</em>'; + + // To circumvent session_begin returning a valid value and the check_ban() not called on second page view, we kill the session again + $this->session_kill(false); + + // A very special case... we are within the cron script which is not supposed to print out the ban message... show blank page + if (defined('IN_CRON')) + { + garbage_collection(); + exit_handler(); + exit; + } + + trigger_error($message); + } + + return ($banned && $ban_row['ban_give_reason']) ? $ban_row['ban_give_reason'] : $banned; + } + + /** + * Check if ip is blacklisted + * This should be called only where absolutly necessary + * + * Only IPv4 (rbldns does not support AAAA records/IPv6 lookups) + * + * @author satmd (from the php manual) + * @param string $mode register/post - spamcop for example is ommitted for posting + * @return false if ip is not blacklisted, else an array([checked server], [lookup]) + */ + public function check_dnsbl($mode, $ip = false) + { + if ($ip === false) + { + $ip = $this->server['ip']; + } + + $dnsbl_check = array( + 'sbl-xbl.spamhaus.org' => 'http://www.spamhaus.org/query/bl?ip=', + ); + + if ($mode == 'register') + { + $dnsbl_check['bl.spamcop.net'] = 'http://spamcop.net/bl.shtml?'; + } + + if ($ip) + { + $quads = explode('.', $ip); + $reverse_ip = $quads[3] . '.' . $quads[2] . '.' . $quads[1] . '.' . $quads[0]; + + // Need to be listed on all servers... + $listed = true; + $info = array(); + + foreach ($dnsbl_check as $dnsbl => $lookup) + { + if (phpbb_checkdnsrr($reverse_ip . '.' . $dnsbl . '.', 'A') === true) + { + $info = array($dnsbl, $lookup . $ip); + } + else + { + $listed = false; + } + } + + if ($listed) + { + return $info; + } + } + + return false; + } + + /** + * Set/Update a persistent login key + * + * This method creates or updates a persistent session key. When a user makes + * use of persistent (formerly auto-) logins a key is generated and stored in the + * DB. When they revisit with the same key it's automatically updated in both the + * DB and cookie. Multiple keys may exist for each user representing different + * browsers or locations. As with _any_ non-secure-socket no passphrase login this + * remains vulnerable to exploit. + */ + public function set_login_key($user_id = false, $key = false, $user_ip = false) + { + $user_id = ($user_id === false) ? $this->data['user_id'] : $user_id; + $user_ip = ($user_ip === false) ? $this->server['ip'] : $user_ip; + $key = ($key === false) ? (($this->cookie_data['k']) ? $this->cookie_data['k'] : false) : $key; + + $key_id = phpbb::$security->unique_id(hexdec(substr($this->session_id, 0, 8))); + + $sql_ary = array( + 'key_id' => (string) md5($key_id), + 'last_ip' => (string) $this->server['ip'], + 'last_login' => (int) $this->time_now, + ); + + if (!$key) + { + $sql_ary += array( + 'user_id' => (int) $user_id + ); + } + + if ($key) + { + $sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . ' + SET ' . phpbb::$db->sql_build_array('UPDATE', $sql_ary) . ' + WHERE user_id = ' . (int) $user_id . " + AND key_id = '" . phpbb::$db->sql_escape(md5($key)) . "'"; + } + else + { + $sql = 'INSERT INTO ' . SESSIONS_KEYS_TABLE . ' ' . phpbb::$db->sql_build_array('INSERT', $sql_ary); + } + phpbb::$db->sql_query($sql); + + $this->cookie_data['k'] = $key_id; + + return false; + } + + /** + * Reset all login keys for the specified user + * + * This method removes all current login keys for a specified (or the current) + * user. It will be called on password change to render old keys unusable + */ + public function reset_login_keys($user_id = false) + { + $user_id = ($user_id === false) ? $this->data['user_id'] : $user_id; + + $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' + WHERE user_id = ' . (int) $user_id; + phpbb::$db->sql_query($sql); + + // Let's also clear any current sessions for the specified user_id + // If it's the current user then we'll leave this session intact + $sql_where = 'session_user_id = ' . (int) $user_id; + $sql_where .= ($user_id === $this->data['user_id']) ? " AND session_id <> '" . phpbb::$db->sql_escape($this->session_id) . "'" : ''; + + $sql = 'DELETE FROM ' . SESSIONS_TABLE . " + WHERE $sql_where"; + phpbb::$db->sql_query($sql); + + // We're changing the password of the current user and they have a key + // Lets regenerate it to be safe + if ($user_id === $this->data['user_id'] && $this->cookie_data['k']) + { + $this->set_login_key($user_id); + } + } + + /** + * Reset all admin sessions + */ + function unset_admin() + { + $sql = 'UPDATE ' . SESSIONS_TABLE . ' + SET session_admin = 0 + WHERE session_id = \'' . phpbb::$db->sql_escape($this->session_id) . '\''; + phpbb::$db->sql_query($sql); + } + + /** + * Check if a valid, non-expired session exist. Also make sure it errors out correctly if we do not have a db-setup yet. ;) + */ + private function session_exist() + { + // If session is empty or does not match the session within the URL (if required - set by NEED_SID), then we need a new session + if (empty($this->session_id) || (defined('NEED_SID') && $this->session_id !== request::variable('sid', '', false, request::GET))) + { + return false; + } + + // If the db is not initialized/registered, then we also need a new session (we are not able to go forward then... + if (!phpbb::registered('db')) + { + return false; + } + + // Now finally check the db for our provided session + $sql = 'SELECT u.*, s.* + FROM ' . SESSIONS_TABLE . ' s, ' . USERS_TABLE . " u + WHERE s.session_id = '" . phpbb::$db->sql_escape($this->session_id) . "' + AND u.user_id = s.session_user_id"; + $result = phpbb::$db->sql_query($sql); + $row = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + // Also new session if it has not been found. ;) + if (!$row) + { + return false; + } + + $this->data = $row; + + // Now check the ip, the browser, forwarded for and referer + if (!$this->session_valid()) + { + return false; + } + + // Ok, we are not finished yet. We need to know if the session is expired + + // Check whether the session is still valid if we have one + if (method_exists($this->auth, 'validate_session')) + { + if (!$this->auth->validate_session($this)) + { + return false; + } + } + + // Check the session length timeframe if autologin is not enabled. + // Else check the autologin length... and also removing those having autologin enabled but no longer allowed board-wide. + if (!$this->data['session_autologin']) + { + if ($this->data['session_time'] < $this->time_now - (phpbb::$config['session_length'] + 60)) + { + return false; + } + } + else if (!phpbb::$config['allow_autologin'] || (phpbb::$config['max_autologin_time'] && $this->data['session_time'] < $this->time_now - (86400 * (int) phpbb::$config['max_autologin_time']) + 60)) + { + return false; + } + + // Only update session DB a minute or so after last update or if page changes + if ($this->time_now - $this->data['session_time'] > 60 || ($this->update_session_page && $this->data['session_page'] != $this->server['page']['page'])) + { + $sql_ary = array('session_time' => $this->time_now); + + if ($this->update_session_page) + { + $sql_ary['session_page'] = substr($this->server['page']['page'], 0, 199); + $sql_ary['session_forum_id'] = $this->server['page']['forum']; + } + + $sql = 'UPDATE ' . SESSIONS_TABLE . ' SET ' . phpbb::$db->sql_build_array('UPDATE', $sql_ary) . " + WHERE session_id = '" . phpbb::$db->sql_escape($this->session_id) . "'"; + phpbb::$db->sql_query($sql); + } + + $this->is_registered = ($this->data['user_id'] != ANONYMOUS && ($this->data['user_type'] == USER_NORMAL || $this->data['user_type'] == USER_FOUNDER)) ? true : false; + $this->is_bot = (!$this->is_registered && $this->data['user_id'] != ANONYMOUS) ? true : false; + $this->data['user_lang'] = basename($this->data['user_lang']); + + return true; + } + + /** + * Check if the request originated from the same page. + * @param bool $check_script_path If true, the path will be checked as well + */ + private function validate_referer($check_script_path = false) + { + // no referer - nothing to validate, user's fault for turning it off (we only check on POST; so meta can't be the reason) + if (empty($this->server['referer']) || empty($this->server['host'])) + { + return true; + } + + // Specialchar host, because it's the only one not specialchared + $host = htmlspecialchars($this->server['host']); + $ref = substr($this->server['referer'], strpos($this->server['referer'], '://') + 3); + + if (!(stripos($ref, $host) === 0)) + { + return false; + } + else if ($check_script_path && rtrim($this->server['page']['root_script_path'], '/') !== '') + { + $ref = substr($ref, strlen($host)); + $server_port = $this->server['port']; + + if ($server_port !== 80 && $server_port !== 443 && stripos($ref, ":$server_port") === 0) + { + $ref = substr($ref, strlen(":$server_port")); + } + + if (!(stripos(rtrim($ref, '/'), rtrim($this->server['page']['root_script_path'], '/')) === 0)) + { + return false; + } + } + + return true; + } + + /** + * Fill data array with a "faked" user account + */ + private function default_data() + { + return array( + 'user_id' => ANONYMOUS, + ); + } + + /** + * Check for a bot by comparing user agent and ip + */ + private function check_bot() + { + $bot = false; + + foreach (phpbb_cache::obtain_bots() as $row) + { + if ($row['bot_agent'] && preg_match('#' . str_replace('\*', '.*?', preg_quote($row['bot_agent'], '#')) . '#i', $this->server['browser'])) + { + $bot = $row['user_id']; + } + + // If ip is supplied, we will make sure the ip is matching too... + if ($row['bot_ip'] && ($bot || !$row['bot_agent'])) + { + // Set bot to false, then we only have to set it to true if it is matching + $bot = false; + + foreach (explode(',', $row['bot_ip']) as $bot_ip) + { + if (strpos($this->server['ip'], $bot_ip) === 0) + { + $bot = (int) $row['user_id']; + break; + } + } + } + + if ($bot) + { + break; + } + } + + return $bot; + } + + /** + * Check if session is valid by comparing ip, forwarded for, browser and referer + */ + private function session_valid($log_failure = true) + { + // Validate IP length according to admin ... enforces an IP + // check on bots if admin requires this + // $quadcheck = (phpbb::$config['ip_check_bot'] && $this->data['user_type'] & USER_BOT) ? 4 : phpbb::$config['ip_check']; + + if (strpos($this->server['ip'], ':') !== false && strpos($this->data['session_ip'], ':') !== false) + { + $session_ip = short_ipv6($this->data['session_ip'], phpbb::$config['ip_check']); + $user_ip = short_ipv6($this->server['ip'], phpbb::$config['ip_check']); + } + else + { + $session_ip = implode('.', array_slice(explode('.', $this->data['session_ip']), 0, phpbb::$config['ip_check'])); + $user_ip = implode('.', array_slice(explode('.', $this->server['ip']), 0, phpbb::$config['ip_check'])); + } + + $session_browser = (phpbb::$config['browser_check']) ? trim(strtolower(substr($this->data['session_browser'], 0, 149))) : ''; + $user_browser = (phpbb::$config['browser_check']) ? trim(strtolower(substr($this->server['browser'], 0, 149))) : ''; + + $session_forwarded_for = (phpbb::$config['forwarded_for_check']) ? substr($this->data['session_forwarded_for'], 0, 254) : ''; + $user_forwarded_for = (phpbb::$config['forwarded_for_check']) ? substr($this->server['forwarded_for'], 0, 254) : ''; + + // referer checks + $check_referer_path = phpbb::$config['referer_validation'] == REFERER_VALIDATE_PATH; + $referer_valid = true; + + // we assume HEAD and TRACE to be foul play and thus only whitelist GET + if (phpbb::$config['referer_validation'] && $this->server['request_method']) + { + $referer_valid = $this->validate_referer($check_referer_path); + } + + if ($user_ip !== $session_ip || $user_browser !== $session_browser || $user_forwarded_for !== $session_forwarded_for || !$referer_valid) + { + // Added logging temporarly to help debug bugs... + if (defined('DEBUG_EXTRA') && $this->data['user_id'] != ANONYMOUS && $log_failure) + { + if ($referer_valid) + { + add_log('critical', 'LOG_IP_BROWSER_FORWARDED_CHECK', $user_ip, $session_ip, $user_browser, $session_browser, htmlspecialchars($user_forwarded_for), htmlspecialchars($session_forwarded_for)); + } + else + { + add_log('critical', 'LOG_REFERER_INVALID', $this->server['referer']); + } + } + + return false; + } + + return true; + } + } + + ?> \ No newline at end of file Propchange: branches/acydburn/phpBB/includes/classes/session.php ------------------------------------------------------------------------------ svn:eol-style = LF Propchange: branches/acydburn/phpBB/includes/classes/session.php ------------------------------------------------------------------------------ svn:keywords = "Author Date Id Revision" Added: branches/acydburn/phpBB/includes/classes/user.php ============================================================================== *** branches/acydburn/phpBB/includes/classes/user.php (added) --- branches/acydburn/phpBB/includes/classes/user.php Thu Dec 11 17:39:51 2008 *************** *** 0 **** --- 1,939 ---- + <?php + /** + * + * @package phpBB3 + * @version $Id$ + * @copyright (c) 2005 phpBB Group + * @license http://opensource.org/licenses/gpl-license.php GNU Public License + * + */ + + /** + * @ignore + */ + if (!defined('IN_PHPBB')) + { + exit; + } + + /** + * Base user class + * + * This is the overarching class which contains (through session extend) + * all methods utilised for user functionality during a session. + * + * @package phpBB3 + */ + class phpbb_user extends phpbb_session + { + public $lang = array(); + public $help = array(); + public $theme = array(); + public $date_format; + public $timezone; + public $dst; + + public $lang_name = false; + public $lang_id = false; + public $lang_path; + public $img_lang; + public $img_array = array(); + + // Able to add new option (id 7) + public $keyoptions = array('viewimg' => 0, 'viewflash' => 1, 'viewsmilies' => 2, 'viewsigs' => 3, 'viewavatars' => 4, 'viewcensors' => 5, 'attachsig' => 6, 'bbcode' => 8, 'smilies' => 9, 'popuppm' => 10); + public $keyvalues = array(); + + /** + * Constructor to set the lang path + */ + public function __construct() + { + parent::__construct(); + $this->lang_path = PHPBB_ROOT_PATH . 'language/'; + } + + public function init() + { + $this->session_begin(); + phpbb::$acl->init($this->data); + } + + /** + * Function to set custom language path (able to use directory outside of phpBB) + * + * @param string $lang_path New language path used. + * @access public + */ + public function set_custom_lang_path($lang_path) + { + $this->lang_path = $lang_path; + + if (substr($this->lang_path, -1) != '/') + { + $this->lang_path .= '/'; + } + } + + /** + * Setup basic user-specific items (style, language, ...) + */ + public function setup($lang_set = false, $style = false) + { + if ($this->data['user_id'] != ANONYMOUS) + { + $this->lang_name = (file_exists($this->lang_path . $this->data['user_lang'] . "/common." . PHP_EXT)) ? $this->data['user_lang'] : basename(phpbb::$config['default_lang']); + $this->date_format = $this->data['user_dateformat']; + $this->timezone = $this->data['user_timezone'] * 3600; + $this->dst = $this->data['user_dst'] * 3600; + } + else + { + $this->lang_name = basename(phpbb::$config['default_lang']); + $this->date_format = phpbb::$config['default_dateformat']; + $this->timezone = phpbb::$config['board_timezone'] * 3600; + $this->dst = phpbb::$config['board_dst'] * 3600; + + /** + * If a guest user is surfing, we try to guess his/her language first by obtaining the browser language + * If re-enabled we need to make sure only those languages installed are checked + * Commented out so we do not loose the code. + + if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) + { + $accept_lang_ary = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']); + + foreach ($accept_lang_ary as $accept_lang) + { + // Set correct format ... guess full xx_YY form + $accept_lang = substr($accept_lang, 0, 2) . '_' . strtoupper(substr($accept_lang, 3, 2)); + $accept_lang = basename($accept_lang); + + if (file_exists($this->lang_path . $accept_lang . "/common." . PHP_EXT)) + { + $this->lang_name = phpbb::$config['default_lang'] = $accept_lang; + break; + } + else + { + // No match on xx_YY so try xx + $accept_lang = substr($accept_lang, 0, 2); + $accept_lang = basename($accept_lang); + + if (file_exists($this->lang_path . $accept_lang . "/common." . PHP_EXT)) + { + $this->lang_name = phpbb::$config['default_lang'] = $accept_lang; + break; + } + } + } + } + */ + } + + // We include common language file here to not load it every time a custom language file is included + $lang = &$this->lang; + + if ((include $this->lang_path . $this->lang_name . "/common." . PHP_EXT) === false) + { + die('Language file ' . $this->lang_path . $this->lang_name . "/common." . PHP_EXT . " couldn't be opened."); + } + + $this->add_lang($lang_set); + unset($lang_set); + + if (request::variable('style', false, false, request::GET) && phpbb::$auth->acl_get('a_styles')) + { + global $SID, $_EXTRA_URL; + + $style = request_var('style', 0); + $SID .= '&style=' . $style; + $_EXTRA_URL = array('style=' . $style); + } + else + { + // Set up style + $style = ($style) ? $style : ((!phpbb::$config['override_user_style']) ? $this->data['user_style'] : phpbb::$config['default_style']); + } + + $sql = 'SELECT s.style_id, t.template_path, t.template_id, t.bbcode_bitfield, c.theme_path, c.theme_name, c.theme_storedb, c.theme_id, i.imageset_path, i.imageset_id, i.imageset_name + FROM ' . STYLES_TABLE . ' s, ' . STYLES_TEMPLATE_TABLE . ' t, ' . STYLES_THEME_TABLE . ' c, ' . STYLES_IMAGESET_TABLE . " i + WHERE s.style_id = $style + AND t.template_id = s.template_id + AND c.theme_id = s.theme_id + AND i.imageset_id = s.imageset_id"; + $result = phpbb::$db->sql_query($sql, 3600); + $this->theme = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + + // User has wrong style + if (!$this->theme && $style == $this->data['user_style']) + { + $style = $this->data['user_style'] = phpbb::$config['default_style']; + + $sql = 'UPDATE ' . USERS_TABLE . " + SET user_style = $style + WHERE user_id = {$this->data['user_id']}"; + phpbb::$db->sql_query($sql); + + $sql = 'SELECT s.style_id, t.template_path, t.template_id, t.bbcode_bitfield, c.theme_path, c.theme_name, c.theme_storedb, c.theme_id, i.imageset_path, i.imageset_id, i.imageset_name + FROM ' . STYLES_TABLE . ' s, ' . STYLES_TEMPLATE_TABLE . ' t, ' . STYLES_THEME_TABLE . ' c, ' . STYLES_IMAGESET_TABLE . " i + WHERE s.style_id = $style + AND t.template_id = s.template_id + AND c.theme_id = s.theme_id + AND i.imageset_id = s.imageset_id"; + $result = phpbb::$db->sql_query($sql, 3600); + $this->theme = phpbb::$db->sql_fetchrow($result); + phpbb::$db->sql_freeresult($result); + } + + if (!$this->theme) + { + trigger_error('Could not get style data', E_USER_ERROR); + } + + // Now parse the cfg file and cache it, + // we are only interested in the theme configuration for now + $parsed_items = phpbb_cache::obtain_cfg_item($this->theme, 'theme'); + + $check_for = array( + 'parse_css_file' => (int) 0, + 'pagination_sep' => (string) ', ', + ); + + foreach ($check_for as $key => $default_value) + { + $this->theme[$key] = (isset($parsed_items[$key])) ? $parsed_items[$key] : $default_value; + settype($this->theme[$key], gettype($default_value)); + + if (is_string($default_value)) + { + $this->theme[$key] = htmlspecialchars($this->theme[$key]); + } + } + + // If the style author specified the theme needs to be cached + // (because of the used paths and variables) than make sure it is the case. + // For example, if the theme uses language-specific images it needs to be stored in db. + if (!$this->theme['theme_storedb'] && $this->theme['parse_css_file']) + { + $this->theme['theme_storedb'] = 1; + + $stylesheet = file_get_contents(PHPBB_ROOT_PATH . "styles/{$this->theme['theme_path']}/theme/stylesheet.css"); + // Match CSS imports + $matches = array(); + preg_match_all('/@import url\(["\'](.*)["\']\);/i', $stylesheet, $matches); + + if (sizeof($matches)) + { + $content = ''; + foreach ($matches[0] as $idx => $match) + { + if ($content = @file_get_contents(PHPBB_ROOT_PATH . "styles/{$this->theme['theme_path']}/theme/" . $matches[1][$idx])) + { + $content = trim($content); + } + else + { + $content = ''; + } + $stylesheet = str_replace($match, $content, $stylesheet); + } + unset($content); + } + + $stylesheet = str_replace('./', 'styles/' . $this->theme['theme_path'] . '/theme/', $stylesheet); + + $sql_ary = array( + 'theme_data' => $stylesheet, + 'theme_mtime' => time(), + 'theme_storedb' => 1 + ); + + $sql = 'UPDATE ' . STYLES_THEME_TABLE . ' + SET ' . phpbb::$db->sql_build_array('UPDATE', $sql_ary) . ' + WHERE theme_id = ' . $this->theme['theme_id']; + phpbb::$db->sql_query($sql); + + unset($sql_ary); + } + + phpbb::$template->set_template(); + + $this->img_lang = (file_exists(PHPBB_ROOT_PATH . 'styles/' . $this->theme['imageset_path'] . '/imageset/' . $this->lang_name)) ? $this->lang_name : phpbb::$config['default_lang']; + + $sql = 'SELECT image_name, image_filename, image_lang, image_height, image_width + FROM ' . STYLES_IMAGESET_DATA_TABLE . ' + WHERE imageset_id = ' . $this->theme['imageset_id'] . " + AND image_filename <> '' + AND image_lang IN ('" . phpbb::$db->sql_escape($this->img_lang) . "', '')"; + $result = phpbb::$db->sql_query($sql, 3600); + + $localised_images = false; + while ($row = phpbb::$db->sql_fetchrow($result)) + { + if ($row['image_lang']) + { + $localised_images = true; + } + + $row['image_filename'] = rawurlencode($row['image_filename']); + $this->img_array[$row['image_name']] = $row; + } + phpbb::$db->sql_freeresult($result); + + // there were no localised images, try to refresh the localised imageset for the user's language + if (!$localised_images) + { + // Attention: this code ignores the image definition list from acp_styles and just takes everything + // that the config file contains + $sql_ary = array(); + + phpbb::$db->sql_transaction('begin'); + + $sql = 'DELETE FROM ' . STYLES_IMAGESET_DATA_TABLE . ' + WHERE imageset_id = ' . $this->theme['imageset_id'] . ' + AND image_lang = \'' . phpbb::$db->sql_escape($this->img_lang) . '\''; + $result = phpbb::$db->sql_query($sql); + + if (@file_exists(PHPBB_ROOT_PATH . "styles/{$this->theme['imageset_path']}/imageset/{$this->img_lang}/imageset.cfg")) + { + $cfg_data_imageset_data = parse_cfg_file(PHPBB_ROOT_PATH . "styles/{$this->theme['imageset_path']}/imageset/{$this->img_lang}/imageset.cfg"); + foreach ($cfg_data_imageset_data as $image_name => $value) + { + if (strpos($value, '*') !== false) + { + if (substr($value, -1, 1) === '*') + { + list($image_filename, $image_height) = explode('*', $value); + $image_width = 0; + } + else + { + list($image_filename, $image_height, $image_width) = explode('*', $value); + } + } + else + { + $image_filename = $value; + $image_height = $image_width = 0; + } + + if (strpos($image_name, 'img_') === 0 && $image_filename) + { + $image_name = substr($image_name, 4); + $sql_ary[] = array( + 'image_name' => (string) $image_name, + 'image_filename' => (string) $image_filename, + 'image_height' => (int) $image_height, + 'image_width' => (int) $image_width, + 'imageset_id' => (int) $this->theme['imageset_id'], + 'image_lang' => (string) $this->img_lang, + ); + } + } + ... [truncated message content] |
