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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb; |
| 15 | |
| 16 | use phpbb\filesystem\helper as filesystem_helper; |
| 17 | |
| 18 | /** |
| 19 | * Session class |
| 20 | */ |
| 21 | class session |
| 22 | { |
| 23 | public $cookie_data = array(); |
| 24 | public $page = array(); |
| 25 | public $data = array(); |
| 26 | public $browser = ''; |
| 27 | public $referer = ''; |
| 28 | public $forwarded_for = ''; |
| 29 | public $host = ''; |
| 30 | public $session_id = ''; |
| 31 | public $ip = ''; |
| 32 | public $load = 0; |
| 33 | public $time_now = 0; |
| 34 | public $update_session_page = true; |
| 35 | |
| 36 | /** |
| 37 | * Extract current session page |
| 38 | * |
| 39 | * @param string $root_path current root path (phpbb_root_path) |
| 40 | * @return array |
| 41 | */ |
| 42 | static function extract_current_page($root_path) |
| 43 | { |
| 44 | global $request, $symfony_request; |
| 45 | |
| 46 | $page_array = array(); |
| 47 | |
| 48 | // First of all, get the request uri... |
| 49 | $script_name = $request->escape($symfony_request->getScriptName(), true); |
| 50 | $args = $request->escape(explode('&', $symfony_request->getQueryString() ?? ''), true); |
| 51 | |
| 52 | // If we are unable to get the script name we use REQUEST_URI as a failover and note it within the page array for easier support... |
| 53 | if (!$script_name) |
| 54 | { |
| 55 | $script_name = html_entity_decode($request->server('REQUEST_URI'), ENT_COMPAT); |
| 56 | $script_name = (($pos = strpos($script_name, '?')) !== false) ? substr($script_name, 0, $pos) : $script_name; |
| 57 | $page_array['failover'] = 1; |
| 58 | } |
| 59 | |
| 60 | // Replace backslashes and doubled slashes (could happen on some proxy setups) |
| 61 | $script_name = str_replace(array('\\', '//'), '/', $script_name); |
| 62 | |
| 63 | // Now, remove the sid and let us get a clean query string... |
| 64 | $use_args = []; |
| 65 | |
| 66 | // Since some browser do not encode correctly we need to do this with some "special" characters... |
| 67 | // " -> %22, ' => %27, < -> %3C, > -> %3E |
| 68 | $find = ['"', "'", '<', '>', '"', '<', '>']; |
| 69 | $replace = ['%22', '%27', '%3C', '%3E', '%22', '%3C', '%3E']; |
| 70 | |
| 71 | foreach ($args as $argument) |
| 72 | { |
| 73 | if (strpos($argument, 'sid=') === 0) |
| 74 | { |
| 75 | continue; |
| 76 | } |
| 77 | |
| 78 | $use_args[] = (string) str_replace($find, $replace, $argument); |
| 79 | } |
| 80 | unset($args); |
| 81 | |
| 82 | // The following examples given are for an request uri of {path to the phpbb directory}/adm/index.php?i=10&b=2 |
| 83 | |
| 84 | // The current query string |
| 85 | $query_string = trim(implode('&', $use_args)); |
| 86 | |
| 87 | // basenamed page name (for example: index.php) |
| 88 | $page_name = (substr($script_name, -1, 1) == '/') ? '' : basename($script_name); |
| 89 | $page_name = urlencode(htmlspecialchars($page_name, ENT_COMPAT)); |
| 90 | |
| 91 | $symfony_request_path = filesystem_helper::clean_path($symfony_request->getPathInfo()); |
| 92 | if ($symfony_request_path !== '/') |
| 93 | { |
| 94 | $page_name .= str_replace('%2F', '/', urlencode($symfony_request_path)); |
| 95 | } |
| 96 | |
| 97 | if (substr($root_path, 0, 2) === './' && strpos($root_path, '..') === false) |
| 98 | { |
| 99 | $root_dirs = explode('/', str_replace('\\', '/', rtrim($root_path, '/'))); |
| 100 | $page_dirs = explode('/', str_replace('\\', '/', '.')); |
| 101 | } |
| 102 | else |
| 103 | { |
| 104 | // current directory within the phpBB root (for example: adm) |
| 105 | $root_dirs = explode('/', str_replace('\\', '/', filesystem_helper::realpath($root_path))); |
| 106 | $page_dirs = explode('/', str_replace('\\', '/', filesystem_helper::realpath('./'))); |
| 107 | } |
| 108 | |
| 109 | $intersection = array_intersect_assoc($root_dirs, $page_dirs); |
| 110 | |
| 111 | $root_dirs = array_diff_assoc($root_dirs, $intersection); |
| 112 | $page_dirs = array_diff_assoc($page_dirs, $intersection); |
| 113 | |
| 114 | $page_dir = str_repeat('../', count($root_dirs)) . implode('/', $page_dirs); |
| 115 | |
| 116 | if ($page_dir && substr($page_dir, -1, 1) == '/') |
| 117 | { |
| 118 | $page_dir = substr($page_dir, 0, -1); |
| 119 | } |
| 120 | |
| 121 | // Current page from phpBB root (for example: adm/index.php?i=10&b=2) |
| 122 | $page = (($page_dir) ? $page_dir . '/' : '') . $page_name; |
| 123 | if ($query_string) |
| 124 | { |
| 125 | $page .= '?' . $query_string; |
| 126 | } |
| 127 | |
| 128 | // The script path from the webroot to the current directory (for example: /phpBB3/adm/) : always prefixed with / and ends in / |
| 129 | $script_path = $symfony_request->getBasePath(); |
| 130 | |
| 131 | // The script path from the webroot to the phpBB root (for example: /phpBB3/) |
| 132 | $script_dirs = explode('/', $script_path); |
| 133 | array_splice($script_dirs, -count($page_dirs)); |
| 134 | $root_script_path = implode('/', $script_dirs) . (count($root_dirs) ? '/' . implode('/', $root_dirs) : ''); |
| 135 | |
| 136 | // We are on the base level (phpBB root == webroot), lets adjust the variables a bit... |
| 137 | if (!$root_script_path) |
| 138 | { |
| 139 | $root_script_path = ($page_dir) ? str_replace($page_dir, '', $script_path) : $script_path; |
| 140 | } |
| 141 | |
| 142 | $script_path .= (substr($script_path, -1, 1) == '/') ? '' : '/'; |
| 143 | $root_script_path .= (substr($root_script_path, -1, 1) == '/') ? '' : '/'; |
| 144 | |
| 145 | $forum_id = $request->variable('f', 0); |
| 146 | // maximum forum id value is maximum value of mediumint unsigned column |
| 147 | $forum_id = ($forum_id > 0 && $forum_id < 16777215) ? $forum_id : 0; |
| 148 | |
| 149 | $page_array += array( |
| 150 | 'page_name' => $page_name, |
| 151 | 'page_dir' => $page_dir, |
| 152 | |
| 153 | 'query_string' => $query_string, |
| 154 | 'script_path' => str_replace(' ', '%20', htmlspecialchars($script_path, ENT_COMPAT)), |
| 155 | 'root_script_path' => str_replace(' ', '%20', htmlspecialchars($root_script_path, ENT_COMPAT)), |
| 156 | |
| 157 | 'page' => $page, |
| 158 | 'forum' => $forum_id, |
| 159 | ); |
| 160 | |
| 161 | return $page_array; |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Get valid hostname/port. HTTP_HOST is used, SERVER_NAME if HTTP_HOST not present. |
| 166 | */ |
| 167 | function extract_current_hostname() |
| 168 | { |
| 169 | global $config, $request; |
| 170 | |
| 171 | // Get hostname |
| 172 | $host = html_entity_decode($request->header('Host', $request->server('SERVER_NAME')), ENT_COMPAT); |
| 173 | |
| 174 | // Should be a string and lowered |
| 175 | $host = (string) strtolower($host); |
| 176 | |
| 177 | // If host is equal the cookie domain or the server name (if config is set), then we assume it is valid |
| 178 | if ((isset($config['cookie_domain']) && $host === $config['cookie_domain']) || (isset($config['server_name']) && $host === $config['server_name'])) |
| 179 | { |
| 180 | return $host; |
| 181 | } |
| 182 | |
| 183 | // Is the host actually a IP? If so, we use the IP... (IPv4) |
| 184 | if (long2ip(ip2long($host)) === $host) |
| 185 | { |
| 186 | return $host; |
| 187 | } |
| 188 | |
| 189 | // 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 |
| 190 | $host = @parse_url('http://' . $host); |
| 191 | $host = (!empty($host['host'])) ? $host['host'] : ''; |
| 192 | |
| 193 | // Remove any portions not removed by parse_url (#) |
| 194 | $host = str_replace('#', '', $host); |
| 195 | |
| 196 | // If, by any means, the host is now empty, we will use a "best approach" way to guess one |
| 197 | if (empty($host)) |
| 198 | { |
| 199 | if (!empty($config['server_name'])) |
| 200 | { |
| 201 | $host = $config['server_name']; |
| 202 | } |
| 203 | else if (!empty($config['cookie_domain'])) |
| 204 | { |
| 205 | $host = (strpos($config['cookie_domain'], '.') === 0) ? substr($config['cookie_domain'], 1) : $config['cookie_domain']; |
| 206 | } |
| 207 | else |
| 208 | { |
| 209 | // Set to OS hostname or localhost |
| 210 | $host = (function_exists('php_uname')) ? php_uname('n') : 'localhost'; |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | // It may be still no valid host, but for sure only a hostname (we may further expand on the cookie domain... if set) |
| 215 | return $host; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Setup basic user-specific items (style, language, ...) |
| 220 | * |
| 221 | * @param array|string|false $lang_set Lang set(s) to include, false if none shall be included |
| 222 | * @param int|false $style_id Style ID to load, false to load default style |
| 223 | * |
| 224 | * @throws \RuntimeException When called on session and not user instance |
| 225 | * |
| 226 | * @return void |
| 227 | */ |
| 228 | public function setup($lang_set = false, $style_id = false) |
| 229 | { |
| 230 | throw new \RuntimeException('Calling setup on session class is not supported.'); |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Start session management |
| 235 | * |
| 236 | * This is where all session activity begins. We gather various pieces of |
| 237 | * information from the client and server. We test to see if a session already |
| 238 | * exists. If it does, fine and dandy. If it doesn't we'll go on to create a |
| 239 | * new one ... pretty logical heh? We also examine the system load (if we're |
| 240 | * running on a system which makes such information readily available) and |
| 241 | * halt if it's above an admin definable limit. |
| 242 | * |
| 243 | * @param bool $update_session_page if true the session page gets updated. |
| 244 | * This can be set to circumvent certain scripts to update the users last visited page. |
| 245 | */ |
| 246 | function session_begin($update_session_page = true) |
| 247 | { |
| 248 | global $phpEx, $SID, $_SID, $_EXTRA_URL, $db, $config, $phpbb_root_path; |
| 249 | global $request, $phpbb_container, $user, $phpbb_log, $phpbb_dispatcher; |
| 250 | |
| 251 | // Give us some basic information |
| 252 | $this->time_now = time(); |
| 253 | $this->cookie_data = array('u' => 0, 'k' => ''); |
| 254 | $this->update_session_page = $update_session_page; |
| 255 | $this->browser = $request->header('User-Agent'); |
| 256 | $this->referer = $request->header('Referer'); |
| 257 | $this->forwarded_for = $request->header('X-Forwarded-For'); |
| 258 | |
| 259 | $this->host = $this->extract_current_hostname(); |
| 260 | $this->page = $this->extract_current_page($phpbb_root_path); |
| 261 | |
| 262 | // if the forwarded for header shall be checked we have to validate its contents |
| 263 | if ($config['forwarded_for_check']) |
| 264 | { |
| 265 | $this->forwarded_for = preg_replace('# {2,}#', ' ', str_replace(',', ' ', $this->forwarded_for)); |
| 266 | |
| 267 | // split the list of IPs |
| 268 | $ips = explode(' ', $this->forwarded_for); |
| 269 | foreach ($ips as $ip) |
| 270 | { |
| 271 | if (!filter_var($ip, FILTER_VALIDATE_IP)) |
| 272 | { |
| 273 | // contains invalid data, don't use the forwarded for header |
| 274 | $this->forwarded_for = ''; |
| 275 | break; |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | else |
| 280 | { |
| 281 | $this->forwarded_for = ''; |
| 282 | } |
| 283 | |
| 284 | if ($request->is_set($config['cookie_name'] . '_sid', \phpbb\request\request_interface::COOKIE) || $request->is_set($config['cookie_name'] . '_u', \phpbb\request\request_interface::COOKIE)) |
| 285 | { |
| 286 | $this->cookie_data['u'] = $request->variable($config['cookie_name'] . '_u', 0, false, \phpbb\request\request_interface::COOKIE); |
| 287 | $this->cookie_data['k'] = $request->variable($config['cookie_name'] . '_k', '', false, \phpbb\request\request_interface::COOKIE); |
| 288 | $this->session_id = $request->variable($config['cookie_name'] . '_sid', '', false, \phpbb\request\request_interface::COOKIE); |
| 289 | |
| 290 | $SID = '?sid='; |
| 291 | $_SID = ''; |
| 292 | |
| 293 | if (empty($this->session_id) && $phpbb_container->getParameter('session.force_sid')) |
| 294 | { |
| 295 | $this->session_id = $_SID = $request->variable('sid', ''); |
| 296 | $SID = '?sid=' . $this->session_id; |
| 297 | $this->cookie_data = array('u' => 0, 'k' => ''); |
| 298 | } |
| 299 | } |
| 300 | else |
| 301 | { |
| 302 | $this->session_id = $_SID = $phpbb_container->getParameter('session.force_sid') ? $request->variable('sid', '') : ''; |
| 303 | $SID = '?sid=' . $this->session_id; |
| 304 | } |
| 305 | |
| 306 | $_EXTRA_URL = array(); |
| 307 | |
| 308 | // Why no forwarded_for et al? Well, too easily spoofed. With the results of my recent requests |
| 309 | // it's pretty clear that in the majority of cases you'll at least be left with a proxy/cache ip. |
| 310 | $ip = html_entity_decode($request->server('REMOTE_ADDR'), ENT_COMPAT); |
| 311 | $ip = preg_replace('# {2,}#', ' ', str_replace(',', ' ', $ip)); |
| 312 | |
| 313 | /** |
| 314 | * Event to alter user IP address |
| 315 | * |
| 316 | * @event core.session_ip_after |
| 317 | * @var string ip REMOTE_ADDR |
| 318 | * @since 3.1.10-RC1 |
| 319 | */ |
| 320 | $vars = array('ip'); |
| 321 | extract($phpbb_dispatcher->trigger_event('core.session_ip_after', compact($vars))); |
| 322 | |
| 323 | // split the list of IPs |
| 324 | $ips = explode(' ', trim($ip)); |
| 325 | |
| 326 | // Default IP if REMOTE_ADDR is invalid |
| 327 | $this->ip = '127.0.0.1'; |
| 328 | |
| 329 | foreach ($ips as $ip) |
| 330 | { |
| 331 | // Normalise IP address |
| 332 | $ip = phpbb_ip_normalise($ip); |
| 333 | |
| 334 | if ($ip === false) |
| 335 | { |
| 336 | // IP address is invalid. |
| 337 | break; |
| 338 | } |
| 339 | |
| 340 | // IP address is valid. |
| 341 | $this->ip = $ip; |
| 342 | } |
| 343 | |
| 344 | $this->load = false; |
| 345 | |
| 346 | // Load limit check (if applicable) |
| 347 | if ($config['limit_load'] || $config['limit_search_load']) |
| 348 | { |
| 349 | if ((function_exists('sys_getloadavg') && $load = sys_getloadavg()) || ($load = explode(' ', @file_get_contents('/proc/loadavg')))) |
| 350 | { |
| 351 | $this->load = array_slice($load, 0, 1); |
| 352 | $this->load = floatval($this->load[0]); |
| 353 | } |
| 354 | else |
| 355 | { |
| 356 | $config->set('limit_load', '0'); |
| 357 | $config->set('limit_search_load', '0'); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | // if session id is set |
| 362 | if (!empty($this->session_id)) |
| 363 | { |
| 364 | $sql = 'SELECT u.*, s.* |
| 365 | FROM ' . SESSIONS_TABLE . ' s, ' . USERS_TABLE . " u |
| 366 | WHERE s.session_id = '" . $db->sql_escape($this->session_id) . "' |
| 367 | AND u.user_id = s.session_user_id"; |
| 368 | $result = $db->sql_query($sql); |
| 369 | $this->data = $db->sql_fetchrow($result); |
| 370 | $db->sql_freeresult($result); |
| 371 | |
| 372 | // Did the session exist in the DB? |
| 373 | if (isset($this->data['user_id'])) |
| 374 | { |
| 375 | // Validate IP length according to admin ... enforces an IP |
| 376 | // check on bots if admin requires this |
| 377 | // $quadcheck = ($config['ip_check_bot'] && $this->data['user_type'] & USER_BOT) ? 4 : $config['ip_check']; |
| 378 | |
| 379 | if (strpos($this->ip, ':') !== false && strpos($this->data['session_ip'], ':') !== false) |
| 380 | { |
| 381 | $s_ip = short_ipv6($this->data['session_ip'], $config['ip_check']); |
| 382 | $u_ip = short_ipv6($this->ip, $config['ip_check']); |
| 383 | } |
| 384 | else |
| 385 | { |
| 386 | $s_ip = implode('.', array_slice(explode('.', $this->data['session_ip']), 0, $config['ip_check'])); |
| 387 | $u_ip = implode('.', array_slice(explode('.', $this->ip), 0, $config['ip_check'])); |
| 388 | } |
| 389 | |
| 390 | $s_browser = ($config['browser_check']) ? trim(strtolower(substr($this->data['session_browser'], 0, 149))) : ''; |
| 391 | $u_browser = ($config['browser_check']) ? trim(strtolower(substr($this->browser, 0, 149))) : ''; |
| 392 | |
| 393 | $s_forwarded_for = ($config['forwarded_for_check']) ? substr($this->data['session_forwarded_for'], 0, 254) : ''; |
| 394 | $u_forwarded_for = ($config['forwarded_for_check']) ? substr($this->forwarded_for, 0, 254) : ''; |
| 395 | |
| 396 | // referer checks |
| 397 | // The @ before $config['referer_validation'] suppresses notices present while running the updater |
| 398 | $check_referer_path = (@$config['referer_validation'] == REFERER_VALIDATE_PATH); |
| 399 | $referer_valid = true; |
| 400 | |
| 401 | // we assume HEAD and TRACE to be foul play and thus only whitelist GET |
| 402 | if (@$config['referer_validation'] && strtolower($request->server('REQUEST_METHOD')) !== 'get') |
| 403 | { |
| 404 | $referer_valid = $this->validate_referer($check_referer_path); |
| 405 | } |
| 406 | |
| 407 | if ($u_ip === $s_ip && $s_browser === $u_browser && $s_forwarded_for === $u_forwarded_for && $referer_valid) |
| 408 | { |
| 409 | $session_expired = false; |
| 410 | |
| 411 | // Check whether the session is still valid if we have one |
| 412 | /* @var $provider_collection \phpbb\auth\provider_collection */ |
| 413 | $provider_collection = $phpbb_container->get('auth.provider_collection'); |
| 414 | $provider = $provider_collection->get_provider(); |
| 415 | |
| 416 | if (!($provider instanceof \phpbb\auth\provider\provider_interface)) |
| 417 | { |
| 418 | throw new \RuntimeException($provider . ' must implement \phpbb\auth\provider\provider_interface'); |
| 419 | } |
| 420 | |
| 421 | $ret = $provider->validate_session($this->data); |
| 422 | if ($ret !== null && !$ret) |
| 423 | { |
| 424 | $session_expired = true; |
| 425 | } |
| 426 | |
| 427 | if (!$session_expired) |
| 428 | { |
| 429 | // Check the session length timeframe if autologin is not enabled. |
| 430 | // Else check the autologin length... and also removing those having autologin enabled but no longer allowed board-wide. |
| 431 | if (!$this->data['session_autologin']) |
| 432 | { |
| 433 | if ($this->data['session_time'] < $this->time_now - ((int) $config['session_length'] + 60)) |
| 434 | { |
| 435 | $session_expired = true; |
| 436 | } |
| 437 | } |
| 438 | else if (!$config['allow_autologin'] || ($config['max_autologin_time'] && $this->data['session_time'] < $this->time_now - (86400 * (int) $config['max_autologin_time']) + 60)) |
| 439 | { |
| 440 | $session_expired = true; |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | if (!$session_expired) |
| 445 | { |
| 446 | $this->data['is_registered'] = ($this->data['user_id'] != ANONYMOUS && ($this->data['user_type'] == USER_NORMAL || $this->data['user_type'] == USER_FOUNDER)) ? true : false; |
| 447 | $this->data['is_bot'] = (!$this->data['is_registered'] && $this->data['user_id'] != ANONYMOUS) ? true : false; |
| 448 | $this->data['user_lang'] = basename($this->data['user_lang']); |
| 449 | |
| 450 | // Is user banned? Are they excluded? Won't return on ban, exists within method |
| 451 | $this->check_ban_for_current_session($config); |
| 452 | |
| 453 | // Update user last active time accordingly, but in a minute or so |
| 454 | if ((int) $this->data['session_time'] - (int) $this->data['user_last_active'] > 60) |
| 455 | { |
| 456 | $this->update_last_active_time(); |
| 457 | } |
| 458 | |
| 459 | return true; |
| 460 | } |
| 461 | } |
| 462 | else |
| 463 | { |
| 464 | // Added logging temporarily to help debug bugs... |
| 465 | if ($phpbb_container->getParameter('session.log_errors') && $this->data['user_id'] != ANONYMOUS) |
| 466 | { |
| 467 | if ($referer_valid) |
| 468 | { |
| 469 | $phpbb_log->add('critical', $user->data['user_id'], $user->ip, 'LOG_IP_BROWSER_FORWARDED_CHECK', false, array( |
| 470 | $u_ip, |
| 471 | $s_ip, |
| 472 | $u_browser, |
| 473 | $s_browser, |
| 474 | htmlspecialchars($u_forwarded_for, ENT_COMPAT), |
| 475 | htmlspecialchars($s_forwarded_for, ENT_COMPAT) |
| 476 | )); |
| 477 | } |
| 478 | else |
| 479 | { |
| 480 | $phpbb_log->add('critical', $user->data['user_id'], $user->ip, 'LOG_REFERER_INVALID', false, array($this->referer)); |
| 481 | } |
| 482 | } |
| 483 | } |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | // If we reach here then no (valid) session exists. So we'll create a new one |
| 488 | return $this->session_create(); |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Create a new session |
| 493 | * |
| 494 | * If upon trying to start a session we discover there is nothing existing we |
| 495 | * jump here. Additionally this method is called directly during login to regenerate |
| 496 | * the session for the specific user. In this method we carry out a number of tasks; |
| 497 | * garbage collection, (search)bot checking, banned user comparison. Basically |
| 498 | * though this method will result in a new session for a specific user. |
| 499 | */ |
| 500 | function session_create($user_id = false, $set_admin = false, $persist_login = false, $viewonline = true) |
| 501 | { |
| 502 | global $SID, $_SID, $db, $config, $cache, $phpbb_container, $phpbb_dispatcher; |
| 503 | |
| 504 | $this->data = array(); |
| 505 | |
| 506 | /* Garbage collection ... remove old sessions updating user information |
| 507 | // if necessary. It means (potentially) 11 queries but only infrequently |
| 508 | if ($this->time_now > $config['session_last_gc'] + $config['session_gc']) |
| 509 | { |
| 510 | $this->session_gc(); |
| 511 | }*/ |
| 512 | |
| 513 | // Do we allow autologin on this board? No? Then override anything |
| 514 | // that may be requested here |
| 515 | if (!$config['allow_autologin']) |
| 516 | { |
| 517 | $this->cookie_data['k'] = $persist_login = false; |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * Here we do a bot check, oh er saucy! No, not that kind of bot |
| 522 | * check. We loop through the list of bots defined by the admin and |
| 523 | * see if we have any useragent and/or IP matches. If we do, this is a |
| 524 | * bot, act accordingly |
| 525 | */ |
| 526 | $bot = false; |
| 527 | $active_bots = $cache->obtain_bots(); |
| 528 | |
| 529 | foreach ($active_bots as $row) |
| 530 | { |
| 531 | if ($row['bot_agent'] && preg_match('#' . str_replace('\*', '.*?', preg_quote($row['bot_agent'], '#')) . '#i', $this->browser)) |
| 532 | { |
| 533 | $bot = (int) $row['user_id']; |
| 534 | } |
| 535 | |
| 536 | // If ip is supplied, we will make sure the ip is matching too... |
| 537 | if ($row['bot_ip'] && ($bot || !$row['bot_agent'])) |
| 538 | { |
| 539 | // Set bot to false, then we only have to set it to true if it is matching |
| 540 | $bot = false; |
| 541 | |
| 542 | foreach (explode(',', $row['bot_ip']) as $bot_ip) |
| 543 | { |
| 544 | $bot_ip = trim($bot_ip); |
| 545 | |
| 546 | if (!$bot_ip) |
| 547 | { |
| 548 | continue; |
| 549 | } |
| 550 | |
| 551 | if (strpos($this->ip, $bot_ip) === 0) |
| 552 | { |
| 553 | $bot = (int) $row['user_id']; |
| 554 | break; |
| 555 | } |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | if ($bot) |
| 560 | { |
| 561 | break; |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | /* @var $provider_collection \phpbb\auth\provider_collection */ |
| 566 | $provider_collection = $phpbb_container->get('auth.provider_collection'); |
| 567 | $provider = $provider_collection->get_provider(); |
| 568 | $this->data = $provider->autologin(); |
| 569 | |
| 570 | if ($user_id !== false && isset($this->data['user_id']) && $this->data['user_id'] != $user_id) |
| 571 | { |
| 572 | $this->data = array(); |
| 573 | } |
| 574 | |
| 575 | if (isset($this->data['user_id'])) |
| 576 | { |
| 577 | $this->cookie_data['k'] = ''; |
| 578 | $this->cookie_data['u'] = $this->data['user_id']; |
| 579 | } |
| 580 | |
| 581 | // If we're presented with an autologin key we'll join against it. |
| 582 | // Else if we've been passed a user_id we'll grab data based on that |
| 583 | if (isset($this->cookie_data['k']) && $this->cookie_data['k'] && $this->cookie_data['u'] && empty($this->data)) |
| 584 | { |
| 585 | $sql = 'SELECT u.* |
| 586 | FROM ' . USERS_TABLE . ' u, ' . SESSIONS_KEYS_TABLE . ' k |
| 587 | WHERE u.user_id = ' . (int) $this->cookie_data['u'] . ' |
| 588 | AND u.user_type IN (' . USER_NORMAL . ', ' . USER_FOUNDER . ") |
| 589 | AND k.user_id = u.user_id |
| 590 | AND k.key_id = '" . $db->sql_escape(md5($this->cookie_data['k'])) . "'"; |
| 591 | $result = $db->sql_query($sql); |
| 592 | $user_data = $db->sql_fetchrow($result); |
| 593 | |
| 594 | if ($user_id === false || (isset($user_data['user_id']) && $user_id == $user_data['user_id'])) |
| 595 | { |
| 596 | $this->data = $user_data; |
| 597 | $bot = false; |
| 598 | } |
| 599 | |
| 600 | $db->sql_freeresult($result); |
| 601 | } |
| 602 | |
| 603 | if ($user_id !== false && empty($this->data)) |
| 604 | { |
| 605 | $this->cookie_data['k'] = ''; |
| 606 | $this->cookie_data['u'] = $user_id; |
| 607 | |
| 608 | $sql = 'SELECT * |
| 609 | FROM ' . USERS_TABLE . ' |
| 610 | WHERE user_id = ' . (int) $this->cookie_data['u'] . ' |
| 611 | AND user_type IN (' . USER_NORMAL . ', ' . USER_FOUNDER . ')'; |
| 612 | $result = $db->sql_query($sql); |
| 613 | $this->data = $db->sql_fetchrow($result); |
| 614 | $db->sql_freeresult($result); |
| 615 | $bot = false; |
| 616 | } |
| 617 | |
| 618 | // Bot user, if they have a SID in the Request URI we need to get rid of it |
| 619 | // otherwise they'll index this page with the SID, duplicate content oh my! |
| 620 | if ($bot && isset($_GET['sid'])) |
| 621 | { |
| 622 | send_status_line(301, 'Moved Permanently'); |
| 623 | redirect(build_url(array('sid'))); |
| 624 | } |
| 625 | |
| 626 | // If no data was returned one or more of the following occurred: |
| 627 | // Key didn't match one in the DB |
| 628 | // User does not exist |
| 629 | // User is inactive |
| 630 | // User is bot |
| 631 | if (!is_array($this->data) || !count($this->data)) |
| 632 | { |
| 633 | $this->cookie_data['k'] = ''; |
| 634 | $this->cookie_data['u'] = ($bot) ? $bot : ANONYMOUS; |
| 635 | |
| 636 | if (!$bot) |
| 637 | { |
| 638 | $sql = 'SELECT * |
| 639 | FROM ' . USERS_TABLE . ' |
| 640 | WHERE user_id = ' . (int) $this->cookie_data['u']; |
| 641 | } |
| 642 | else |
| 643 | { |
| 644 | // We give bots always the same session if it is not yet expired. |
| 645 | $sql = 'SELECT u.*, s.* |
| 646 | FROM ' . USERS_TABLE . ' u |
| 647 | LEFT JOIN ' . SESSIONS_TABLE . ' s ON (s.session_user_id = u.user_id) |
| 648 | WHERE u.user_id = ' . (int) $bot; |
| 649 | } |
| 650 | |
| 651 | $result = $db->sql_query($sql); |
| 652 | $this->data = $db->sql_fetchrow($result); |
| 653 | $db->sql_freeresult($result); |
| 654 | } |
| 655 | |
| 656 | if ($this->data['user_id'] != ANONYMOUS && !$bot) |
| 657 | { |
| 658 | $this->data['session_last_visit'] = (isset($this->data['session_time']) && $this->data['session_time']) ? $this->data['session_time'] : (($this->data['user_lastvisit']) ? $this->data['user_lastvisit'] : time()); |
| 659 | } |
| 660 | else |
| 661 | { |
| 662 | $this->data['session_last_visit'] = $this->time_now; |
| 663 | } |
| 664 | |
| 665 | // Force user id to be integer... |
| 666 | $this->data['user_id'] = (int) $this->data['user_id']; |
| 667 | |
| 668 | // At this stage we should have a filled data array, defined cookie u and k data. |
| 669 | // data array should contain recent session info if we're a real user and a recent |
| 670 | // session exists in which case session_id will also be set |
| 671 | |
| 672 | // Is user banned? Are they excluded? Won't return on ban, exists within method |
| 673 | $this->check_ban_for_current_session($config); |
| 674 | |
| 675 | $this->data['is_registered'] = (!$bot && $this->data['user_id'] != ANONYMOUS && ($this->data['user_type'] == USER_NORMAL || $this->data['user_type'] == USER_FOUNDER)) ? true : false; |
| 676 | $this->data['is_bot'] = ($bot) ? true : false; |
| 677 | |
| 678 | // If our friend is a bot, we re-assign a previously assigned session |
| 679 | if ($this->data['is_bot'] && $bot == $this->data['user_id'] && $this->data['session_id']) |
| 680 | { |
| 681 | // Only assign the current session if the ip, browser and forwarded_for match... |
| 682 | if (strpos($this->ip, ':') !== false && strpos($this->data['session_ip'], ':') !== false) |
| 683 | { |
| 684 | $s_ip = short_ipv6($this->data['session_ip'], $config['ip_check']); |
| 685 | $u_ip = short_ipv6($this->ip, $config['ip_check']); |
| 686 | } |
| 687 | else |
| 688 | { |
| 689 | $s_ip = implode('.', array_slice(explode('.', $this->data['session_ip']), 0, $config['ip_check'])); |
| 690 | $u_ip = implode('.', array_slice(explode('.', $this->ip), 0, $config['ip_check'])); |
| 691 | } |
| 692 | |
| 693 | $s_browser = ($config['browser_check']) ? trim(strtolower(substr($this->data['session_browser'], 0, 149))) : ''; |
| 694 | $u_browser = ($config['browser_check']) ? trim(strtolower(substr($this->browser, 0, 149))) : ''; |
| 695 | |
| 696 | $s_forwarded_for = ($config['forwarded_for_check']) ? substr($this->data['session_forwarded_for'], 0, 254) : ''; |
| 697 | $u_forwarded_for = ($config['forwarded_for_check']) ? substr($this->forwarded_for, 0, 254) : ''; |
| 698 | |
| 699 | if ($u_ip === $s_ip && $s_browser === $u_browser && $s_forwarded_for === $u_forwarded_for) |
| 700 | { |
| 701 | $this->session_id = $this->data['session_id']; |
| 702 | |
| 703 | // Only update session DB a minute or so after last update or if page changes |
| 704 | if ($this->time_now - $this->data['session_time'] > 60 || ($this->update_session_page && $this->data['session_page'] != $this->page['page'])) |
| 705 | { |
| 706 | // Update the last visit time |
| 707 | $this->update_user_lastvisit(); |
| 708 | } |
| 709 | |
| 710 | $SID = '?sid='; |
| 711 | $_SID = ''; |
| 712 | return true; |
| 713 | } |
| 714 | else |
| 715 | { |
| 716 | // If the ip and browser does not match make sure we only have one bot assigned to one session |
| 717 | $db->sql_query('DELETE FROM ' . SESSIONS_TABLE . ' WHERE session_user_id = ' . $this->data['user_id']); |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | $session_autologin = (($this->cookie_data['k'] || $persist_login) && $this->data['is_registered']) ? true : false; |
| 722 | $set_admin = ($set_admin && $this->data['is_registered']) ? true : false; |
| 723 | |
| 724 | // Create or update the session |
| 725 | $sql_ary = array( |
| 726 | 'session_user_id' => (int) $this->data['user_id'], |
| 727 | 'session_start' => (int) $this->time_now, |
| 728 | 'session_last_visit' => (int) $this->data['session_last_visit'], |
| 729 | 'session_time' => (int) $this->time_now, |
| 730 | 'session_browser' => (string) trim(substr($this->browser, 0, 149)), |
| 731 | 'session_forwarded_for' => (string) $this->forwarded_for, |
| 732 | 'session_ip' => (string) $this->ip, |
| 733 | 'session_autologin' => ($session_autologin) ? 1 : 0, |
| 734 | 'session_admin' => ($set_admin) ? 1 : 0, |
| 735 | 'session_viewonline' => ($viewonline) ? 1 : 0, |
| 736 | ); |
| 737 | |
| 738 | if ($this->update_session_page) |
| 739 | { |
| 740 | $sql_ary['session_page'] = (string) substr($this->page['page'], 0, 199); |
| 741 | $sql_ary['session_forum_id'] = $this->page['forum']; |
| 742 | } |
| 743 | |
| 744 | $db->sql_return_on_error(true); |
| 745 | |
| 746 | $sql = 'DELETE |
| 747 | FROM ' . SESSIONS_TABLE . ' |
| 748 | WHERE session_id = \'' . $db->sql_escape($this->session_id) . '\' |
| 749 | AND session_user_id = ' . ANONYMOUS; |
| 750 | |
| 751 | if (!defined('IN_ERROR_HANDLER') && (!$this->session_id || !$db->sql_query($sql) || !$db->sql_affectedrows())) |
| 752 | { |
| 753 | // Limit new sessions in 1 minute period (if required) |
| 754 | if (empty($this->data['session_time']) && $config['active_sessions']) |
| 755 | { |
| 756 | // $db->sql_return_on_error(false); |
| 757 | |
| 758 | $sql = 'SELECT COUNT(session_id) AS sessions |
| 759 | FROM ' . SESSIONS_TABLE . ' |
| 760 | WHERE session_time >= ' . ($this->time_now - 60); |
| 761 | $result = $db->sql_query($sql); |
| 762 | $row = $db->sql_fetchrow($result); |
| 763 | $db->sql_freeresult($result); |
| 764 | |
| 765 | if ((int) $row['sessions'] > (int) $config['active_sessions']) |
| 766 | { |
| 767 | send_status_line(503, 'Service Unavailable'); |
| 768 | trigger_error('BOARD_UNAVAILABLE'); |
| 769 | } |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | // Since we re-create the session id here, the inserted row must be unique. Therefore, we display potential errors. |
| 774 | // Commented out because it will not allow forums to update correctly |
| 775 | // $db->sql_return_on_error(false); |
| 776 | |
| 777 | // Something quite important: session_page always holds the *last* page visited, except for the *first* visit. |
| 778 | // We are not able to simply have an empty session_page btw, therefore we need to tell phpBB how to detect this special case. |
| 779 | // If the session id is empty, we have a completely new one and will set an "identifier" here. This identifier is able to be checked later. |
| 780 | if (empty($this->data['session_id'])) |
| 781 | { |
| 782 | // This is a temporary variable, only set for the very first visit |
| 783 | $this->data['session_created'] = true; |
| 784 | } |
| 785 | |
| 786 | $this->session_id = $this->data['session_id'] = md5(unique_id()); |
| 787 | |
| 788 | $sql_ary['session_id'] = (string) $this->session_id; |
| 789 | $sql_ary['session_page'] = (string) substr($this->page['page'], 0, 199); |
| 790 | $sql_ary['session_forum_id'] = $this->page['forum']; |
| 791 | |
| 792 | $sql = 'INSERT INTO ' . SESSIONS_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary); |
| 793 | $db->sql_query($sql); |
| 794 | |
| 795 | $db->sql_return_on_error(false); |
| 796 | |
| 797 | // Regenerate autologin/persistent login key |
| 798 | if ($session_autologin) |
| 799 | { |
| 800 | $this->set_login_key(); |
| 801 | } |
| 802 | |
| 803 | // refresh data |
| 804 | if ($phpbb_container->getParameter('session.force_sid')) |
| 805 | { |
| 806 | $SID = '?sid=' . $this->session_id; |
| 807 | $_SID = $this->session_id; |
| 808 | } |
| 809 | $this->data = array_merge($this->data, $sql_ary); |
| 810 | |
| 811 | if (!$bot) |
| 812 | { |
| 813 | $cookie_expire = $this->time_now + (($config['max_autologin_time']) ? 86400 * (int) $config['max_autologin_time'] : 31536000); |
| 814 | |
| 815 | $this->set_cookie('u', $this->cookie_data['u'], $cookie_expire); |
| 816 | $this->set_cookie('k', $this->cookie_data['k'], $cookie_expire); |
| 817 | $this->set_cookie('sid', $this->session_id, $cookie_expire); |
| 818 | |
| 819 | unset($cookie_expire); |
| 820 | |
| 821 | $sql = 'SELECT COUNT(session_id) AS sessions |
| 822 | FROM ' . SESSIONS_TABLE . ' |
| 823 | WHERE session_user_id = ' . (int) $this->data['user_id'] . ' |
| 824 | AND session_time >= ' . (int) ($this->time_now - (max((int) $config['session_length'], (int) $config['form_token_lifetime']))); |
| 825 | $result = $db->sql_query($sql); |
| 826 | $row = $db->sql_fetchrow($result); |
| 827 | $db->sql_freeresult($result); |
| 828 | |
| 829 | if ((int) $row['sessions'] <= 1 || empty($this->data['user_form_salt'])) |
| 830 | { |
| 831 | $this->data['user_form_salt'] = unique_id(); |
| 832 | // Update the form key |
| 833 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 834 | SET user_form_salt = \'' . $db->sql_escape($this->data['user_form_salt']) . '\', |
| 835 | user_last_active = ' . (int) $this->data['session_time'] . ' |
| 836 | WHERE user_id = ' . (int) $this->data['user_id']; |
| 837 | $db->sql_query($sql); |
| 838 | } |
| 839 | else |
| 840 | { |
| 841 | $this->update_last_active_time(); |
| 842 | } |
| 843 | } |
| 844 | else |
| 845 | { |
| 846 | $this->data['session_time'] = $this->data['session_last_visit'] = $this->time_now; |
| 847 | |
| 848 | $this->update_user_lastvisit(); |
| 849 | |
| 850 | if ($phpbb_container->getParameter('session.force_sid')) |
| 851 | { |
| 852 | $SID = '?sid='; |
| 853 | $_SID = ''; |
| 854 | } |
| 855 | } |
| 856 | |
| 857 | $session_data = $sql_ary; |
| 858 | /** |
| 859 | * Event to send new session data to extension |
| 860 | * Read-only event |
| 861 | * |
| 862 | * @event core.session_create_after |
| 863 | * @var array session_data Associative array of session keys to be updated |
| 864 | * @since 3.1.6-RC1 |
| 865 | */ |
| 866 | $vars = array('session_data'); |
| 867 | extract($phpbb_dispatcher->trigger_event('core.session_create_after', compact($vars))); |
| 868 | unset($session_data); |
| 869 | |
| 870 | return true; |
| 871 | } |
| 872 | |
| 873 | /** |
| 874 | * Kills a session |
| 875 | * |
| 876 | * This method does what it says on the tin. It will delete a pre-existing session. |
| 877 | * It resets cookie information (destroying any autologin key within that cookie data) |
| 878 | * and update the users information from the relevant session data. It will then |
| 879 | * grab guest user information. |
| 880 | */ |
| 881 | function session_kill($new_session = true) |
| 882 | { |
| 883 | global $SID, $_SID, $db, $phpbb_container, $phpbb_dispatcher; |
| 884 | |
| 885 | $sql = 'DELETE FROM ' . SESSIONS_TABLE . " |
| 886 | WHERE session_id = '" . $db->sql_escape($this->session_id) . "' |
| 887 | AND session_user_id = " . (int) $this->data['user_id']; |
| 888 | $db->sql_query($sql); |
| 889 | |
| 890 | $user_id = (int) $this->data['user_id']; |
| 891 | $session_id = $this->session_id; |
| 892 | /** |
| 893 | * Event to send session kill information to extension |
| 894 | * Read-only event |
| 895 | * |
| 896 | * @event core.session_kill_after |
| 897 | * @var int user_id user_id of the session user. |
| 898 | * @var string session_id current user's session_id |
| 899 | * @var bool new_session should we create new session for user |
| 900 | * @since 3.1.6-RC1 |
| 901 | */ |
| 902 | $vars = array('user_id', 'session_id', 'new_session'); |
| 903 | extract($phpbb_dispatcher->trigger_event('core.session_kill_after', compact($vars))); |
| 904 | unset($user_id); |
| 905 | unset($session_id); |
| 906 | |
| 907 | // Allow connecting logout with external auth method logout |
| 908 | /* @var $provider_collection \phpbb\auth\provider_collection */ |
| 909 | $provider_collection = $phpbb_container->get('auth.provider_collection'); |
| 910 | $provider = $provider_collection->get_provider(); |
| 911 | $provider->logout($this->data, $new_session); |
| 912 | |
| 913 | if ($this->data['user_id'] != ANONYMOUS) |
| 914 | { |
| 915 | // Delete existing session, update last visit info first! |
| 916 | if (!isset($this->data['session_time'])) |
| 917 | { |
| 918 | $this->data['session_time'] = time(); |
| 919 | } |
| 920 | |
| 921 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 922 | SET user_lastvisit = ' . (int) $this->data['session_time'] . ' |
| 923 | WHERE user_id = ' . (int) $this->data['user_id']; |
| 924 | $db->sql_query($sql); |
| 925 | |
| 926 | if ($this->cookie_data['k']) |
| 927 | { |
| 928 | $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' |
| 929 | WHERE user_id = ' . (int) $this->data['user_id'] . " |
| 930 | AND key_id = '" . $db->sql_escape(md5($this->cookie_data['k'])) . "'"; |
| 931 | $db->sql_query($sql); |
| 932 | } |
| 933 | |
| 934 | // Reset the data array |
| 935 | $this->data = array(); |
| 936 | |
| 937 | $sql = 'SELECT * |
| 938 | FROM ' . USERS_TABLE . ' |
| 939 | WHERE user_id = ' . ANONYMOUS; |
| 940 | $result = $db->sql_query($sql); |
| 941 | $this->data = $db->sql_fetchrow($result); |
| 942 | $db->sql_freeresult($result); |
| 943 | } |
| 944 | |
| 945 | $cookie_expire = $this->time_now - 31536000; |
| 946 | $this->set_cookie('u', '', $cookie_expire); |
| 947 | $this->set_cookie('k', '', $cookie_expire); |
| 948 | $this->set_cookie('sid', '', $cookie_expire); |
| 949 | unset($cookie_expire); |
| 950 | |
| 951 | $SID = '?sid='; |
| 952 | $this->session_id = $_SID = ''; |
| 953 | |
| 954 | // To make sure a valid session is created we create one for the anonymous user |
| 955 | if ($new_session) |
| 956 | { |
| 957 | $this->session_create(ANONYMOUS); |
| 958 | } |
| 959 | |
| 960 | return true; |
| 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Session garbage collection |
| 965 | * |
| 966 | * This looks a lot more complex than it really is. Effectively we are |
| 967 | * deleting any sessions older than an admin definable limit. Due to the |
| 968 | * way in which we maintain session data we have to ensure we update user |
| 969 | * data before those sessions are destroyed. In addition this method |
| 970 | * removes autologin key information that is older than an admin defined |
| 971 | * limit. |
| 972 | */ |
| 973 | function session_gc() |
| 974 | { |
| 975 | global $db, $config, $phpbb_container, $phpbb_dispatcher; |
| 976 | |
| 977 | if (!$this->time_now) |
| 978 | { |
| 979 | $this->time_now = time(); |
| 980 | } |
| 981 | |
| 982 | /** |
| 983 | * Get most recent session for each registered user to sync user last visit with it |
| 984 | * Inner SELECT gets most recent sessions for each unique session_user_id |
| 985 | * Outer SELECT gets data for them |
| 986 | */ |
| 987 | $sql_select = 'SELECT s1.session_page, s1.session_user_id, s1.session_time AS recent_time |
| 988 | FROM ' . SESSIONS_TABLE . ' AS s1 |
| 989 | INNER JOIN ( |
| 990 | SELECT session_user_id, MAX(session_time) AS recent_time |
| 991 | FROM ' . SESSIONS_TABLE . ' |
| 992 | WHERE session_user_id <> ' . ANONYMOUS . ' |
| 993 | GROUP BY session_user_id |
| 994 | ) AS s2 |
| 995 | ON s1.session_user_id = s2.session_user_id |
| 996 | AND s1.session_time = s2.recent_time'; |
| 997 | |
| 998 | switch ($db->get_sql_layer()) |
| 999 | { |
| 1000 | case 'sqlite3': |
| 1001 | if (phpbb_version_compare($db->sql_server_info(true), '3.8.3', '>=')) |
| 1002 | { |
| 1003 | // For SQLite versions 3.8.3+ which support Common Table Expressions (CTE) |
| 1004 | $sql = "WITH s3 (session_page, session_user_id, session_time) AS ($sql_select) |
| 1005 | UPDATE " . USERS_TABLE . ' |
| 1006 | SET (user_lastpage, user_lastvisit) = (SELECT session_page, session_time FROM s3 WHERE session_user_id = user_id) |
| 1007 | WHERE EXISTS (SELECT session_user_id FROM s3 WHERE session_user_id = user_id)'; |
| 1008 | $db->sql_query($sql); |
| 1009 | |
| 1010 | break; |
| 1011 | } |
| 1012 | |
| 1013 | // No break, for SQLite versions prior to 3.8.3 and Oracle |
| 1014 | case 'oracle': |
| 1015 | $result = $db->sql_query($sql_select); |
| 1016 | while ($row = $db->sql_fetchrow($result)) |
| 1017 | { |
| 1018 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 1019 | SET user_lastvisit = ' . (int) $row['recent_time'] . ", user_lastpage = '" . $db->sql_escape($row['session_page']) . "' |
| 1020 | WHERE user_id = " . (int) $row['session_user_id']; |
| 1021 | $db->sql_query($sql); |
| 1022 | } |
| 1023 | $db->sql_freeresult($result); |
| 1024 | break; |
| 1025 | |
| 1026 | case 'mysqli': |
| 1027 | $sql = 'UPDATE ' . USERS_TABLE . " u, |
| 1028 | ($sql_select) s3 |
| 1029 | SET u.user_lastvisit = s3.recent_time, u.user_lastpage = s3.session_page |
| 1030 | WHERE u.user_id = s3.session_user_id"; |
| 1031 | $db->sql_query($sql); |
| 1032 | break; |
| 1033 | |
| 1034 | default: |
| 1035 | $sql = 'UPDATE ' . USERS_TABLE . " |
| 1036 | SET user_lastvisit = s3.recent_time, user_lastpage = s3.session_page |
| 1037 | FROM ($sql_select) s3 |
| 1038 | WHERE user_id = s3.session_user_id"; |
| 1039 | $db->sql_query($sql); |
| 1040 | break; |
| 1041 | } |
| 1042 | |
| 1043 | // Delete all expired sessions |
| 1044 | $sql = 'DELETE FROM ' . SESSIONS_TABLE . ' |
| 1045 | WHERE session_time < ' . ($this->time_now - (int) $config['session_length']); |
| 1046 | $db->sql_query($sql); |
| 1047 | |
| 1048 | // Update gc timer |
| 1049 | $config->set('session_last_gc', $this->time_now, false); |
| 1050 | |
| 1051 | if ($config['max_autologin_time']) |
| 1052 | { |
| 1053 | $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' |
| 1054 | WHERE last_login < ' . (time() - (86400 * (int) $config['max_autologin_time'])); |
| 1055 | $db->sql_query($sql); |
| 1056 | } |
| 1057 | |
| 1058 | // only called from CRON; should be a safe workaround until the infrastructure gets going |
| 1059 | /* @var \phpbb\captcha\factory $captcha_factory */ |
| 1060 | $captcha_factory = $phpbb_container->get('captcha.factory'); |
| 1061 | $captcha_factory->garbage_collect($config['captcha_plugin']); |
| 1062 | |
| 1063 | $sql = 'DELETE FROM ' . LOGIN_ATTEMPT_TABLE . ' |
| 1064 | WHERE attempt_time < ' . (time() - (int) $config['ip_login_limit_time']); |
| 1065 | $db->sql_query($sql); |
| 1066 | |
| 1067 | /** |
| 1068 | * Event to trigger extension on session_gc |
| 1069 | * |
| 1070 | * @event core.session_gc_after |
| 1071 | * @since 3.1.6-RC1 |
| 1072 | */ |
| 1073 | $phpbb_dispatcher->trigger_event('core.session_gc_after'); |
| 1074 | } |
| 1075 | |
| 1076 | /** |
| 1077 | * Sets a cookie |
| 1078 | * |
| 1079 | * 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. |
| 1080 | * |
| 1081 | * @param string $name Name of the cookie, will be automatically prefixed with the phpBB cookie name. track becomes [cookie_name]_track then. |
| 1082 | * @param string $cookiedata The data to hold within the cookie |
| 1083 | * @param int $cookietime The expiration time as UNIX timestamp. If 0 is provided, a session cookie is set. |
| 1084 | * @param bool $httponly Use HttpOnly. Defaults to true. Use false to make cookie accessible by client-side scripts. |
| 1085 | */ |
| 1086 | function set_cookie($name, $cookiedata, $cookietime, $httponly = true) |
| 1087 | { |
| 1088 | global $config, $phpbb_dispatcher; |
| 1089 | |
| 1090 | // If headers are already set, we just return |
| 1091 | if (headers_sent()) |
| 1092 | { |
| 1093 | return; |
| 1094 | } |
| 1095 | |
| 1096 | $disable_cookie = false; |
| 1097 | /** |
| 1098 | * Event to modify or disable setting cookies |
| 1099 | * |
| 1100 | * @event core.set_cookie |
| 1101 | * @var bool disable_cookie Set to true to disable setting this cookie |
| 1102 | * @var string name Name of the cookie |
| 1103 | * @var string cookiedata The data to hold within the cookie |
| 1104 | * @var int cookietime The expiration time as UNIX timestamp |
| 1105 | * @var bool httponly Use HttpOnly? |
| 1106 | * @since 3.2.9-RC1 |
| 1107 | */ |
| 1108 | $vars = array( |
| 1109 | 'disable_cookie', |
| 1110 | 'name', |
| 1111 | 'cookiedata', |
| 1112 | 'cookietime', |
| 1113 | 'httponly', |
| 1114 | ); |
| 1115 | extract($phpbb_dispatcher->trigger_event('core.set_cookie', compact($vars))); |
| 1116 | |
| 1117 | if ($disable_cookie) |
| 1118 | { |
| 1119 | return; |
| 1120 | } |
| 1121 | |
| 1122 | $name_data = rawurlencode($config['cookie_name'] . '_' . $name) . '=' . rawurlencode($cookiedata); |
| 1123 | $expire = gmdate('D, d-M-Y H:i:s \\G\\M\\T', $cookietime); |
| 1124 | $domain = (!$config['cookie_domain'] || $config['cookie_domain'] == '127.0.0.1' || strpos($config['cookie_domain'], '.') === false) ? '' : '; domain=' . $config['cookie_domain']; |
| 1125 | |
| 1126 | header('Set-Cookie: ' . $name_data . (($cookietime) ? '; expires=' . $expire : '') . '; path=' . $config['cookie_path'] . $domain . ((!$config['cookie_secure']) ? '' : '; secure') . ';' . (($httponly) ? ' HttpOnly' : ''), false); |
| 1127 | } |
| 1128 | |
| 1129 | /** |
| 1130 | * Check for banned user |
| 1131 | * |
| 1132 | * Checks whether the supplied user is banned by id, ip or email. If no parameters |
| 1133 | * are passed to the method pre-existing session data is used. |
| 1134 | * |
| 1135 | * @param int|false $user_id The user id |
| 1136 | * @param mixed $user_ips Can contain a string with one IP or an array of multiple IPs |
| 1137 | * @param string|false $user_email The user email |
| 1138 | * @param bool $return If $return is false this routine does not return on finding a banned user, |
| 1139 | * it outputs a relevant message and stops execution. |
| 1140 | */ |
| 1141 | function check_ban($user_id = false, $user_ips = false, $user_email = false, $return = false) |
| 1142 | { |
| 1143 | global $phpbb_container, $phpbb_dispatcher; |
| 1144 | |
| 1145 | if (defined('IN_CHECK_BAN') || defined('SKIP_CHECK_BAN')) |
| 1146 | { |
| 1147 | return false; |
| 1148 | } |
| 1149 | |
| 1150 | /** @var \phpbb\ban\manager $ban_manager */ |
| 1151 | $ban_manager = $phpbb_container->get('ban.manager'); |
| 1152 | $ban_row = $ban_manager->check(['user_id' => $user_id, 'user_email' => $user_email]); |
| 1153 | if (empty($ban_row)) |
| 1154 | { |
| 1155 | return false; |
| 1156 | } |
| 1157 | |
| 1158 | $banned = true; |
| 1159 | $ban_triggered_by = $ban_row['mode']; |
| 1160 | |
| 1161 | /** |
| 1162 | * Event to set custom ban type |
| 1163 | * |
| 1164 | * @event core.session_set_custom_ban |
| 1165 | * @var bool return If $return is false this routine does not return on finding a banned user, it outputs a relevant message and stops execution |
| 1166 | * @var bool banned Check if user already banned |
| 1167 | * @var array|false ban_row Ban data |
| 1168 | * @var string ban_triggered_by Method that caused ban, can be your custom method |
| 1169 | * @since 3.1.3-RC1 |
| 1170 | */ |
| 1171 | $ban_row = isset($ban_row) ? $ban_row : false; |
| 1172 | $vars = array('return', 'banned', 'ban_row', 'ban_triggered_by'); |
| 1173 | extract($phpbb_dispatcher->trigger_event('core.session_set_custom_ban', compact($vars))); |
| 1174 | |
| 1175 | if ($banned && !$return) |
| 1176 | { |
| 1177 | global $config, $phpbb_root_path, $phpEx; |
| 1178 | |
| 1179 | // Initiate environment ... since it won't be set at this stage |
| 1180 | $this->setup(); |
| 1181 | |
| 1182 | // Logout the user, banned users are unable to use the normal 'logout' link |
| 1183 | if ($this->data['user_id'] != ANONYMOUS) |
| 1184 | { |
| 1185 | $this->session_kill(); |
| 1186 | } |
| 1187 | |
| 1188 | // We show a login box here to allow founders accessing the board if banned by IP |
| 1189 | if (defined('IN_LOGIN') && $this->data['user_id'] == ANONYMOUS) |
| 1190 | { |
| 1191 | $this->setup('ucp'); |
| 1192 | $this->data['is_registered'] = $this->data['is_bot'] = false; |
| 1193 | |
| 1194 | // Set as a precaution to allow login_box() handling this case correctly as well as this function not being executed again. |
| 1195 | define('IN_CHECK_BAN', 1); |
| 1196 | |
| 1197 | login_box("index.$phpEx"); |
| 1198 | |
| 1199 | // The false here is needed, else the user is able to circumvent the ban. |
| 1200 | $this->session_kill(false); |
| 1201 | } |
| 1202 | |
| 1203 | // Ok, we catch the case of an empty session id for the anonymous user... |
| 1204 | // This can happen if the user is logging in, banned by username and the login_box() being called "again". |
| 1205 | if (empty($this->session_id) && defined('IN_CHECK_BAN')) |
| 1206 | { |
| 1207 | $this->session_create(ANONYMOUS); |
| 1208 | } |
| 1209 | |
| 1210 | // Determine which message to output |
| 1211 | $contact_link = phpbb_get_board_contact_link($config, $phpbb_root_path, $phpEx); |
| 1212 | $message = $ban_manager->get_ban_message($ban_row, $ban_triggered_by, $contact_link); |
| 1213 | |
| 1214 | // A very special case... we are within the cron script which is not supposed to print out the ban message... show blank page |
| 1215 | if (defined('IN_CRON')) |
| 1216 | { |
| 1217 | garbage_collection(); |
| 1218 | exit_handler(); |
| 1219 | exit; |
| 1220 | } |
| 1221 | |
| 1222 | // To circumvent session_begin returning a valid value and the check_ban() not called on second page view, we kill the session again |
| 1223 | $this->session_kill(false); |
| 1224 | |
| 1225 | trigger_error($message); |
| 1226 | } |
| 1227 | |
| 1228 | if (!empty($ban_row)) |
| 1229 | { |
| 1230 | $ban_row['ban_triggered_by'] = $ban_triggered_by; |
| 1231 | } |
| 1232 | |
| 1233 | return ($banned && $ban_row) ? $ban_row : $banned; |
| 1234 | } |
| 1235 | |
| 1236 | /** |
| 1237 | * Check the current session for bans |
| 1238 | */ |
| 1239 | protected function check_ban_for_current_session($config) |
| 1240 | { |
| 1241 | if (!defined('SKIP_CHECK_BAN') && $this->data['user_type'] != USER_FOUNDER) |
| 1242 | { |
| 1243 | if (!$config['forwarded_for_check']) |
| 1244 | { |
| 1245 | $this->check_ban($this->data['user_id'], $this->ip); |
| 1246 | } |
| 1247 | else |
| 1248 | { |
| 1249 | $ips = explode(' ', $this->forwarded_for); |
| 1250 | $ips[] = $this->ip; |
| 1251 | $this->check_ban($this->data['user_id'], $ips); |
| 1252 | } |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | /** |
| 1257 | * Check if ip is blacklisted by Spamhaus SBL |
| 1258 | * |
| 1259 | * Disables DNSBL setting if errors are returned by Spamhaus due to a policy violation. |
| 1260 | * https://www.spamhaus.com/product/help-for-spamhaus-public-mirror-users/ |
| 1261 | * |
| 1262 | * @param string $dnsbl the blacklist to check against |
| 1263 | * @param string|false $ip the IPv4 address to check |
| 1264 | * |
| 1265 | * @return bool true if listed in spamhaus database, false if not |
| 1266 | */ |
| 1267 | function check_dnsbl_spamhaus($dnsbl, $ip = false) |
| 1268 | { |
| 1269 | global $config, $phpbb_log; |
| 1270 | |
| 1271 | if ($ip === false) |
| 1272 | { |
| 1273 | $ip = $this->ip; |
| 1274 | } |
| 1275 | |
| 1276 | // Spamhaus does not support IPv6 addresses. |
| 1277 | if (strpos($ip, ':') !== false) |
| 1278 | { |
| 1279 | return false; |
| 1280 | } |
| 1281 | |
| 1282 | if ($ip) |
| 1283 | { |
| 1284 | $quads = explode('.', $ip); |
| 1285 | $reverse_ip = $quads[3] . '.' . $quads[2] . '.' . $quads[1] . '.' . $quads[0]; |
| 1286 | |
| 1287 | $records = dns_get_record($reverse_ip . '.' . $dnsbl . '.', DNS_A); |
| 1288 | if (empty($records)) |
| 1289 | { |
| 1290 | return false; |
| 1291 | } |
| 1292 | else |
| 1293 | { |
| 1294 | $error = false; |
| 1295 | foreach ($records as $record) |
| 1296 | { |
| 1297 | if ($record['ip'] == '127.255.255.254') |
| 1298 | { |
| 1299 | $error = 'LOG_SPAMHAUS_OPEN_RESOLVER'; |
| 1300 | break; |
| 1301 | } |
| 1302 | else if ($record['ip'] == '127.255.255.255') |
| 1303 | { |
| 1304 | $error = 'LOG_SPAMHAUS_VOLUME_LIMIT'; |
| 1305 | break; |
| 1306 | } |
| 1307 | } |
| 1308 | |
| 1309 | if ($error !== false) |
| 1310 | { |
| 1311 | $config->set('check_dnsbl', 0); |
| 1312 | $phpbb_log->add('critical', $this->data['user_id'], $ip, $error); |
| 1313 | } |
| 1314 | else |
| 1315 | { |
| 1316 | // The existence of a non-error A record means it's a hit |
| 1317 | return true; |
| 1318 | } |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | return false; |
| 1323 | } |
| 1324 | |
| 1325 | /** |
| 1326 | * Checks if an IPv4 address is in a specified DNS blacklist |
| 1327 | * |
| 1328 | * Only checks if a record is returned or not. |
| 1329 | * |
| 1330 | * @param string $dnsbl the blacklist to check against |
| 1331 | * @param string|false $ip the IPv4 address to check |
| 1332 | * |
| 1333 | * @return bool true if record is returned, false if not |
| 1334 | */ |
| 1335 | function check_dnsbl_ipv4_generic($dnsbl, $ip = false) |
| 1336 | { |
| 1337 | if ($ip === false) |
| 1338 | { |
| 1339 | $ip = $this->ip; |
| 1340 | } |
| 1341 | |
| 1342 | // This function does not support IPv6 addresses. |
| 1343 | if (strpos($ip, ':') !== false) |
| 1344 | { |
| 1345 | return false; |
| 1346 | } |
| 1347 | |
| 1348 | $quads = explode('.', $ip); |
| 1349 | $reverse_ip = $quads[3] . '.' . $quads[2] . '.' . $quads[1] . '.' . $quads[0]; |
| 1350 | |
| 1351 | if (checkdnsrr($reverse_ip . '.' . $dnsbl . '.', 'A') === true) |
| 1352 | { |
| 1353 | return true; |
| 1354 | } |
| 1355 | |
| 1356 | return false; |
| 1357 | } |
| 1358 | |
| 1359 | /** |
| 1360 | * Check if ip is blacklisted |
| 1361 | * This should be called only where absolutely necessary |
| 1362 | * |
| 1363 | * Only IPv4 (rbldns does not support AAAA records/IPv6 lookups) |
| 1364 | * |
| 1365 | * @author satmd (from the php manual) |
| 1366 | * @param string $mode register/post - spamcop for example is omitted for posting |
| 1367 | * @param string|false $ip the IPv4 address to check |
| 1368 | * |
| 1369 | * @return array|false false if ip is not blacklisted, else an array([checked server], [lookup]) |
| 1370 | */ |
| 1371 | function check_dnsbl($mode, $ip = false) |
| 1372 | { |
| 1373 | if ($ip === false) |
| 1374 | { |
| 1375 | $ip = $this->ip; |
| 1376 | } |
| 1377 | |
| 1378 | // Neither Spamhaus nor Spamcop supports IPv6 addresses. |
| 1379 | if (strpos($ip, ':') !== false) |
| 1380 | { |
| 1381 | return false; |
| 1382 | } |
| 1383 | |
| 1384 | $dnsbl_check = array( |
| 1385 | 'sbl.spamhaus.org' => ['https://check.spamhaus.org/listed/?searchterm=', 'check_dnsbl_spamhaus'], |
| 1386 | ); |
| 1387 | |
| 1388 | if ($mode == 'register') |
| 1389 | { |
| 1390 | $dnsbl_check['bl.spamcop.net'] = ['https://www.spamcop.net/bl.shtml?', 'check_dnsbl_ipv4_generic']; |
| 1391 | } |
| 1392 | |
| 1393 | if ($ip) |
| 1394 | { |
| 1395 | // Need to be listed on all servers... |
| 1396 | $listed = true; |
| 1397 | $info = array(); |
| 1398 | |
| 1399 | foreach ($dnsbl_check as $dnsbl => $lookup) |
| 1400 | { |
| 1401 | if (call_user_func(array($this, $lookup[1]), $dnsbl, $ip) === true) |
| 1402 | { |
| 1403 | $info = array($dnsbl, $lookup[0] . $ip); |
| 1404 | } |
| 1405 | else |
| 1406 | { |
| 1407 | $listed = false; |
| 1408 | } |
| 1409 | } |
| 1410 | |
| 1411 | if ($listed) |
| 1412 | { |
| 1413 | return $info; |
| 1414 | } |
| 1415 | } |
| 1416 | |
| 1417 | return false; |
| 1418 | } |
| 1419 | |
| 1420 | /** |
| 1421 | * Check if URI is blacklisted |
| 1422 | * This should be called only where absolutely necessary, for example on the submitted website field |
| 1423 | * This function is not in use at the moment and is only included for testing purposes, it may not work at all! |
| 1424 | * This means it is untested at the moment and therefore commented out |
| 1425 | * |
| 1426 | * @param string $uri URI to check |
| 1427 | * @return true if uri is on blacklist, else false. Only blacklist is checked (~zero FP), no grey lists |
| 1428 | function check_uribl($uri) |
| 1429 | { |
| 1430 | // Normally parse_url() is not intended to parse uris |
| 1431 | // We need to get the top-level domain name anyway... change. |
| 1432 | $uri = parse_url($uri); |
| 1433 | |
| 1434 | if ($uri === false || empty($uri['host'])) |
| 1435 | { |
| 1436 | return false; |
| 1437 | } |
| 1438 | |
| 1439 | $uri = trim($uri['host']); |
| 1440 | |
| 1441 | if ($uri) |
| 1442 | { |
| 1443 | // One problem here... the return parameter for the "windows" method is different from what |
| 1444 | // we expect... this may render this check useless... |
| 1445 | if (checkdnsrr($uri . '.multi.uribl.com.', 'A') === true) |
| 1446 | { |
| 1447 | return true; |
| 1448 | } |
| 1449 | } |
| 1450 | |
| 1451 | return false; |
| 1452 | } |
| 1453 | */ |
| 1454 | |
| 1455 | /** |
| 1456 | * Set/Update a persistent login key |
| 1457 | * |
| 1458 | * This method creates or updates a persistent session key. When a user makes |
| 1459 | * use of persistent (formerly auto-) logins a key is generated and stored in the |
| 1460 | * DB. When they revisit with the same key it's automatically updated in both the |
| 1461 | * DB and cookie. Multiple keys may exist for each user representing different |
| 1462 | * browsers or locations. As with _any_ non-secure-socket no passphrase login this |
| 1463 | * remains vulnerable to exploit. |
| 1464 | */ |
| 1465 | function set_login_key($user_id = false, $key = false, $user_ip = false) |
| 1466 | { |
| 1467 | global $db, $phpbb_dispatcher; |
| 1468 | |
| 1469 | $user_id = ($user_id === false) ? $this->data['user_id'] : $user_id; |
| 1470 | $user_ip = ($user_ip === false) ? $this->ip : $user_ip; |
| 1471 | $key = ($key === false) ? (($this->cookie_data['k']) ? $this->cookie_data['k'] : false) : $key; |
| 1472 | |
| 1473 | $key_id = unique_id(); |
| 1474 | |
| 1475 | $sql_ary = array( |
| 1476 | 'key_id' => (string) md5($key_id), |
| 1477 | 'last_ip' => (string) $user_ip, |
| 1478 | 'last_login' => (int) time() |
| 1479 | ); |
| 1480 | |
| 1481 | if (!$key) |
| 1482 | { |
| 1483 | $sql_ary += array( |
| 1484 | 'user_id' => (int) $user_id |
| 1485 | ); |
| 1486 | } |
| 1487 | |
| 1488 | if ($key) |
| 1489 | { |
| 1490 | $sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . ' |
| 1491 | SET ' . $db->sql_build_array('UPDATE', $sql_ary) . ' |
| 1492 | WHERE user_id = ' . (int) $user_id . " |
| 1493 | AND key_id = '" . $db->sql_escape(md5($key)) . "'"; |
| 1494 | } |
| 1495 | else |
| 1496 | { |
| 1497 | $sql = 'INSERT INTO ' . SESSIONS_KEYS_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary); |
| 1498 | } |
| 1499 | |
| 1500 | /** |
| 1501 | * Event to adjust autologin keys process |
| 1502 | * |
| 1503 | * @event core.set_login_key |
| 1504 | * @var string|false key Current autologin key if exists, false otherwise |
| 1505 | * @var string key_id New autologin key |
| 1506 | * @var string sql SQL query to update/insert autologin key |
| 1507 | * @var array sql_ary Aray with autologin key data |
| 1508 | * @var int user_id Current user's ID |
| 1509 | * @var string user_ip Current user's IP address |
| 1510 | * @since 3.3.2-RC1 |
| 1511 | */ |
| 1512 | $vars = [ |
| 1513 | 'key', |
| 1514 | 'key_id', |
| 1515 | 'sql', |
| 1516 | 'sql_ary', |
| 1517 | 'user_id', |
| 1518 | 'user_ip', |
| 1519 | ]; |
| 1520 | extract($phpbb_dispatcher->trigger_event('core.set_login_key', compact($vars))); |
| 1521 | |
| 1522 | $db->sql_query($sql); |
| 1523 | |
| 1524 | $this->cookie_data['k'] = $key_id; |
| 1525 | |
| 1526 | return false; |
| 1527 | } |
| 1528 | |
| 1529 | /** |
| 1530 | * Reset all login keys for the specified user |
| 1531 | * |
| 1532 | * This method removes all current login keys for a specified (or the current) |
| 1533 | * user. It will be called on password change to render old keys unusable |
| 1534 | */ |
| 1535 | function reset_login_keys($user_id = false) |
| 1536 | { |
| 1537 | global $db; |
| 1538 | |
| 1539 | $user_id = ($user_id === false) ? (int) $this->data['user_id'] : (int) $user_id; |
| 1540 | |
| 1541 | $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' |
| 1542 | WHERE user_id = ' . (int) $user_id; |
| 1543 | $db->sql_query($sql); |
| 1544 | |
| 1545 | // If the user is logged in, update last visit info first before deleting sessions |
| 1546 | $sql = 'SELECT session_time, session_page |
| 1547 | FROM ' . SESSIONS_TABLE . ' |
| 1548 | WHERE session_user_id = ' . (int) $user_id . ' |
| 1549 | ORDER BY session_time DESC'; |
| 1550 | $result = $db->sql_query_limit($sql, 1); |
| 1551 | $row = $db->sql_fetchrow($result); |
| 1552 | $db->sql_freeresult($result); |
| 1553 | |
| 1554 | if ($row) |
| 1555 | { |
| 1556 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 1557 | SET user_lastvisit = ' . (int) $row['session_time'] . ", user_lastpage = '" . $db->sql_escape($row['session_page']) . "' |
| 1558 | WHERE user_id = " . (int) $user_id; |
| 1559 | $db->sql_query($sql); |
| 1560 | } |
| 1561 | |
| 1562 | // Let's also clear any current sessions for the specified user_id |
| 1563 | // If it's the current user then we'll leave this session intact |
| 1564 | $sql_where = 'session_user_id = ' . (int) $user_id; |
| 1565 | $sql_where .= ($user_id === (int) $this->data['user_id']) ? " AND session_id <> '" . $db->sql_escape($this->session_id) . "'" : ''; |
| 1566 | |
| 1567 | $sql = 'DELETE FROM ' . SESSIONS_TABLE . " |
| 1568 | WHERE $sql_where"; |
| 1569 | $db->sql_query($sql); |
| 1570 | |
| 1571 | // We're changing the password of the current user and they have a key |
| 1572 | // Lets regenerate it to be safe |
| 1573 | if ($user_id === (int) $this->data['user_id'] && $this->cookie_data['k']) |
| 1574 | { |
| 1575 | $this->set_login_key($user_id); |
| 1576 | } |
| 1577 | } |
| 1578 | |
| 1579 | |
| 1580 | /** |
| 1581 | * Check if the request originated from the same page. |
| 1582 | * @param bool $check_script_path If true, the path will be checked as well |
| 1583 | */ |
| 1584 | function validate_referer($check_script_path = false) |
| 1585 | { |
| 1586 | global $config, $request; |
| 1587 | |
| 1588 | // no referer - nothing to validate, user's fault for turning it off (we only check on POST; so meta can't be the reason) |
| 1589 | if (empty($this->referer) || empty($this->host)) |
| 1590 | { |
| 1591 | return true; |
| 1592 | } |
| 1593 | |
| 1594 | $host = htmlspecialchars($this->host, ENT_COMPAT); |
| 1595 | $ref = substr($this->referer, strpos($this->referer, '://') + 3); |
| 1596 | |
| 1597 | if (!(stripos($ref, $host) === 0) && (!$config['force_server_vars'] || !(stripos($ref, $config['server_name']) === 0))) |
| 1598 | { |
| 1599 | return false; |
| 1600 | } |
| 1601 | else if ($check_script_path && rtrim($this->page['root_script_path'], '/') !== '') |
| 1602 | { |
| 1603 | $ref = substr($ref, strlen($host)); |
| 1604 | $server_port = $request->server('SERVER_PORT', 0); |
| 1605 | |
| 1606 | if ($server_port !== 80 && $server_port !== 443 && stripos($ref, ":$server_port") === 0) |
| 1607 | { |
| 1608 | $ref = substr($ref, strlen(":$server_port")); |
| 1609 | } |
| 1610 | |
| 1611 | if (!(stripos(rtrim($ref, '/'), rtrim($this->page['root_script_path'], '/')) === 0)) |
| 1612 | { |
| 1613 | return false; |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | return true; |
| 1618 | } |
| 1619 | |
| 1620 | |
| 1621 | function unset_admin() |
| 1622 | { |
| 1623 | global $db; |
| 1624 | $sql = 'UPDATE ' . SESSIONS_TABLE . ' |
| 1625 | SET session_admin = 0 |
| 1626 | WHERE session_id = \'' . $db->sql_escape($this->session_id) . '\''; |
| 1627 | $db->sql_query($sql); |
| 1628 | } |
| 1629 | |
| 1630 | /** |
| 1631 | * Update the session data |
| 1632 | * |
| 1633 | * @param array $session_data associative array of session keys to be updated |
| 1634 | * @param string $session_id optional session_id, defaults to current user's session_id |
| 1635 | */ |
| 1636 | public function update_session($session_data, $session_id = null) |
| 1637 | { |
| 1638 | global $db, $phpbb_dispatcher; |
| 1639 | |
| 1640 | $session_id = ($session_id) ? $session_id : $this->session_id; |
| 1641 | |
| 1642 | $sql = 'UPDATE ' . SESSIONS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $session_data) . " |
| 1643 | WHERE session_id = '" . $db->sql_escape($session_id) . "'"; |
| 1644 | $db->sql_query($sql); |
| 1645 | |
| 1646 | /** |
| 1647 | * Event to send update session information to extension |
| 1648 | * Read-only event |
| 1649 | * |
| 1650 | * @event core.update_session_after |
| 1651 | * @var array session_data Associative array of session keys to be updated |
| 1652 | * @var string session_id current user's session_id |
| 1653 | * @since 3.1.6-RC1 |
| 1654 | */ |
| 1655 | $vars = array('session_data', 'session_id'); |
| 1656 | extract($phpbb_dispatcher->trigger_event('core.update_session_after', compact($vars))); |
| 1657 | } |
| 1658 | |
| 1659 | public function update_session_infos() |
| 1660 | { |
| 1661 | global $config, $db, $request; |
| 1662 | |
| 1663 | // No need to update if it's a new session. Informations are already inserted by session_create() |
| 1664 | if (isset($this->data['session_created']) && $this->data['session_created']) |
| 1665 | { |
| 1666 | return; |
| 1667 | } |
| 1668 | |
| 1669 | // Do not update the session page for ajax requests, so the view online still works as intended |
| 1670 | $page_changed = $this->update_session_page && (!isset($this->data['session_page']) || $this->data['session_page'] != $this->page['page'] || $this->data['session_forum_id'] != $this->page['forum']) && !$request->is_ajax(); |
| 1671 | |
| 1672 | // Only update session DB a minute or so after last update or if page changes |
| 1673 | if ($this->time_now - (isset($this->data['session_time']) ? $this->data['session_time'] : 0) > 60 || $page_changed) |
| 1674 | { |
| 1675 | $sql_ary = array('session_time' => $this->time_now); |
| 1676 | |
| 1677 | if ($page_changed) |
| 1678 | { |
| 1679 | $sql_ary['session_page'] = substr($this->page['page'], 0, 199); |
| 1680 | $sql_ary['session_forum_id'] = $this->page['forum']; |
| 1681 | } |
| 1682 | |
| 1683 | $db->sql_return_on_error(true); |
| 1684 | |
| 1685 | $this->update_session($sql_ary); |
| 1686 | |
| 1687 | $db->sql_return_on_error(false); |
| 1688 | |
| 1689 | $this->data = array_merge($this->data, $sql_ary); |
| 1690 | |
| 1691 | if ($this->data['user_id'] != ANONYMOUS && isset($config['new_member_post_limit']) |
| 1692 | && $this->data['user_new'] && $config['new_member_post_limit'] <= $this->data['user_posts'] |
| 1693 | && $this instanceof user) |
| 1694 | { |
| 1695 | $this->leave_newly_registered(); |
| 1696 | } |
| 1697 | } |
| 1698 | } |
| 1699 | |
| 1700 | /** |
| 1701 | * Get user ID |
| 1702 | * |
| 1703 | * @return int User ID |
| 1704 | */ |
| 1705 | public function id() : int |
| 1706 | { |
| 1707 | return isset($this->data['user_id']) ? (int) $this->data['user_id'] : ANONYMOUS; |
| 1708 | } |
| 1709 | |
| 1710 | /** |
| 1711 | * Update user last visit time |
| 1712 | */ |
| 1713 | public function update_user_lastvisit() |
| 1714 | { |
| 1715 | global $db; |
| 1716 | |
| 1717 | if (isset($this->data['session_time'], $this->data['user_id'])) |
| 1718 | { |
| 1719 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 1720 | SET user_lastvisit = ' . (int) $this->data['session_time'] . ', |
| 1721 | user_last_active = ' . (int) $this->data['session_time'] . ' |
| 1722 | WHERE user_id = ' . (int) $this->data['user_id']; |
| 1723 | $db->sql_query($sql); |
| 1724 | } |
| 1725 | } |
| 1726 | |
| 1727 | /** |
| 1728 | * Update user's last active time |
| 1729 | * |
| 1730 | * @return void |
| 1731 | */ |
| 1732 | public function update_last_active_time() |
| 1733 | { |
| 1734 | global $db; |
| 1735 | |
| 1736 | if (isset($this->data['session_time'], $this->data['user_id'])) |
| 1737 | { |
| 1738 | $sql = 'UPDATE ' . USERS_TABLE . ' |
| 1739 | SET user_last_active = ' . (int) $this->data['session_time'] . ' |
| 1740 | WHERE user_id = ' . (int) $this->data['user_id']; |
| 1741 | $db->sql_query($sql); |
| 1742 | } |
| 1743 | } |
| 1744 | } |