Subs-Auth.php 26 KB

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  1. <?php
  2. /**
  3. * This file has functions in it to do with authentication, user handling, and the like.
  4. *
  5. * Simple Machines Forum (SMF)
  6. *
  7. * @package SMF
  8. * @author Simple Machines http://www.simplemachines.org
  9. * @copyright 2011 Simple Machines
  10. * @license http://www.simplemachines.org/about/smf/license.php BSD
  11. *
  12. * @version 2.1 Alpha 1
  13. */
  14. if (!defined('SMF'))
  15. die('Hacking attempt...');
  16. /**
  17. * sets the SMF-style login cookie and session based on the id_member and password passed.
  18. * password should be already encrypted with the cookie salt.
  19. * logs the user out if id_member is zero.
  20. * sets the cookie and session to last the number of seconds specified by cookie_length.
  21. * when logging out, if the globalCookies setting is enabled, attempts to clear the subdomain's cookie too.
  22. * @param int $cookie_length,
  23. * @param int $id The id of the member
  24. * @param string $password = ''
  25. */
  26. function setLoginCookie($cookie_length, $id, $password = '')
  27. {
  28. global $cookiename, $boardurl, $modSettings, $sourcedir;
  29. // If changing state force them to re-address some permission caching.
  30. $_SESSION['mc']['time'] = 0;
  31. // The cookie may already exist, and have been set with different options.
  32. $cookie_state = (empty($modSettings['localCookies']) ? 0 : 1) | (empty($modSettings['globalCookies']) ? 0 : 2);
  33. if (isset($_COOKIE[$cookiename]) && preg_match('~^a:[34]:\{i:0;(i:\d{1,6}|s:[1-8]:"\d{1,8}");i:1;s:(0|40):"([a-fA-F0-9]{40})?";i:2;[id]:\d{1,14};(i:3;i:\d;)?\}$~', $_COOKIE[$cookiename]) === 1)
  34. {
  35. $array = @unserialize($_COOKIE[$cookiename]);
  36. // Out with the old, in with the new!
  37. if (isset($array[3]) && $array[3] != $cookie_state)
  38. {
  39. $cookie_url = url_parts($array[3] & 1 > 0, $array[3] & 2 > 0);
  40. smf_setcookie($modSettings['cookie_name'], serialize(array(0, '', 0)), time() - 3600, $cookie_url[1], $cookie_url[0]);
  41. }
  42. }
  43. // Get the data and path to set it on.
  44. $data = serialize(empty($id) ? array(0, '', 0) : array($id, $password, time() + $cookie_length, $cookie_state));
  45. $cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
  46. // Set the cookie, $_COOKIE, and session variable.
  47. smf_setcookie($modSettings['cookie_name'], $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
  48. // If subdomain-independent cookies are on, unset the subdomain-dependent cookie too.
  49. if (empty($id) && !empty($modSettings['globalCookies']))
  50. smf_setcookie($modSettings['cookie_name'], $data, time() + $cookie_length, $cookie_url[1], '');
  51. // Any alias URLs? This is mainly for use with frames, etc.
  52. if (!empty($modSettings['forum_alias_urls']))
  53. {
  54. $aliases = explode(',', $modSettings['forum_alias_urls']);
  55. $temp = $boardurl;
  56. foreach ($aliases as $alias)
  57. {
  58. // Fake the $boardurl so we can set a different cookie.
  59. $alias = strtr(trim($alias), array('http://' => '', 'https://' => ''));
  60. $boardurl = 'http://' . $alias;
  61. $cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
  62. if ($cookie_url[0] == '')
  63. $cookie_url[0] = strtok($alias, '/');
  64. smf_setcookie($modSettings['cookie_name'], $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
  65. }
  66. $boardurl = $temp;
  67. }
  68. $_COOKIE[$cookiename] = $data;
  69. // Make sure the user logs in with a new session ID.
  70. if (!isset($_SESSION['login_' . $cookiename]) || $_SESSION['login_' . $cookiename] !== $data)
  71. {
  72. // We need to meddle with the session.
  73. require_once($sourcedir . '/Session.php');
  74. // Backup and remove the old session.
  75. $oldSessionData = $_SESSION;
  76. $_SESSION = array();
  77. session_destroy();
  78. // Recreate and restore the new session.
  79. loadSession();
  80. session_regenerate_id();
  81. $_SESSION = $oldSessionData;
  82. $_SESSION['login_' . $cookiename] = $data;
  83. }
  84. }
  85. // @todo remove this? wouldn't it get caught earlier?
  86. // PHP < 4.3.2 doesn't have this function
  87. if (!function_exists('session_regenerate_id'))
  88. {
  89. require_once $sourcedir . 'Subs-Compat.php';
  90. }
  91. /**
  92. * Get the domain and path for the cookie
  93. * normally, local and global should be the localCookies and globalCookies settings, respectively.
  94. * uses boardurl to determine these two things.
  95. * @param bool $local,
  96. * @param bool $global
  97. * @return array an array to set the cookie on with domain and path in it, in that order
  98. */
  99. function url_parts($local, $global)
  100. {
  101. global $boardurl;
  102. // Parse the URL with PHP to make life easier.
  103. $parsed_url = parse_url($boardurl);
  104. // Is local cookies off?
  105. if (empty($parsed_url['path']) || !$local)
  106. $parsed_url['path'] = '';
  107. // Globalize cookies across domains (filter out IP-addresses)?
  108. if ($global && preg_match('~^\d{1,3}(\.\d{1,3}){3}$~', $parsed_url['host']) == 0 && preg_match('~(?:[^\.]+\.)?([^\.]{2,}\..+)\z~i', $parsed_url['host'], $parts) == 1)
  109. $parsed_url['host'] = '.' . $parts[1];
  110. // We shouldn't use a host at all if both options are off.
  111. elseif (!$local && !$global)
  112. $parsed_url['host'] = '';
  113. // The host also shouldn't be set if there aren't any dots in it.
  114. elseif (!isset($parsed_url['host']) || strpos($parsed_url['host'], '.') === false)
  115. $parsed_url['host'] = '';
  116. return array($parsed_url['host'], $parsed_url['path'] . '/');
  117. }
  118. /**
  119. * Throws guests out to the login screen when guest access is off.
  120. * sets $_SESSION['login_url'] to $_SERVER['REQUEST_URL'].
  121. * uses the 'kick_guest' sub template found in Login.template.php.
  122. */
  123. function KickGuest()
  124. {
  125. global $txt, $context;
  126. loadLanguage('Login');
  127. loadTemplate('Login');
  128. // Never redirect to an attachment
  129. if (strpos($_SERVER['REQUEST_URL'], 'dlattach') === false)
  130. $_SESSION['login_url'] = $_SERVER['REQUEST_URL'];
  131. $context['sub_template'] = 'kick_guest';
  132. $context['page_title'] = $txt['login'];
  133. }
  134. /**
  135. * Display a message about being in maintenance mode.
  136. * display a login screen with sub template 'maintenance'.
  137. */
  138. function InMaintenance()
  139. {
  140. global $txt, $mtitle, $mmessage, $context;
  141. loadLanguage('Login');
  142. loadTemplate('Login');
  143. // Send a 503 header, so search engines don't bother indexing while we're in maintenance mode.
  144. header('HTTP/1.1 503 Service Temporarily Unavailable');
  145. // Basic template stuff..
  146. $context['sub_template'] = 'maintenance';
  147. $context['title'] = &$mtitle;
  148. $context['description'] = &$mmessage;
  149. $context['page_title'] = $txt['maintain_mode'];
  150. }
  151. /**
  152. * Double check the verity of the admin by asking for his or her password.
  153. * loads Login.template.php and uses the admin_login sub template.
  154. * sends data to template so the admin is sent on to the page they
  155. * wanted if their password is correct, otherwise they can try again.
  156. * @param string $type = 'admin'
  157. */
  158. function adminLogin($type = 'admin')
  159. {
  160. global $context, $scripturl, $txt, $user_info, $user_settings;
  161. loadLanguage('Admin');
  162. loadTemplate('Login');
  163. // Validate what type of session check this is.
  164. $types = array();
  165. call_integration_hook('integrate_validateSession', array($types));
  166. $type = in_array($type, $types) || $type == 'moderate' ? $type : 'admin';
  167. // They used a wrong password, log it and unset that.
  168. if (isset($_POST[$type . '_hash_pass']) || isset($_POST[$type . '_pass']))
  169. {
  170. $txt['security_wrong'] = sprintf($txt['security_wrong'], isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : $txt['unknown'], $_SERVER['HTTP_USER_AGENT'], $user_info['ip']);
  171. log_error($txt['security_wrong'], 'critical');
  172. if (isset($_POST[$type . '_hash_pass']))
  173. unset($_POST[$type . '_hash_pass']);
  174. if (isset($_POST[$type . '_pass']))
  175. unset($_POST[$type . '_pass']);
  176. $context['incorrect_password'] = true;
  177. }
  178. createToken('admin-login');
  179. // Figure out the get data and post data.
  180. $context['get_data'] = '?' . construct_query_string($_GET);
  181. $context['post_data'] = '';
  182. // Now go through $_POST. Make sure the session hash is sent.
  183. $_POST[$context['session_var']] = $context['session_id'];
  184. foreach ($_POST as $k => $v)
  185. $context['post_data'] .= adminLogin_outputPostVars($k, $v);
  186. // Now we'll use the admin_login sub template of the Login template.
  187. $context['sub_template'] = 'admin_login';
  188. // And title the page something like "Login".
  189. if (!isset($context['page_title']))
  190. $context['page_title'] = $txt['login'];
  191. // The type of action.
  192. $context['sessionCheckType'] = $type;
  193. obExit();
  194. // We MUST exit at this point, because otherwise we CANNOT KNOW that the user is privileged.
  195. trigger_error('Hacking attempt...', E_USER_ERROR);
  196. }
  197. /**
  198. * used by the adminLogin() function.
  199. * if 'value' is an array, the function is called recursively.
  200. * @param string $key
  201. * @param string $value
  202. * @return string 'hidden' HTML form fields, containing key-value-pairs
  203. */
  204. function adminLogin_outputPostVars($k, $v)
  205. {
  206. global $smcFunc;
  207. if (!is_array($v))
  208. return '
  209. <input type="hidden" name="' . htmlspecialchars($k) . '" value="' . strtr($v, array('"' => '&quot;', '<' => '&lt;', '>' => '&gt;')) . '" />';
  210. else
  211. {
  212. $ret = '';
  213. foreach ($v as $k2 => $v2)
  214. $ret .= adminLogin_outputPostVars($k . '[' . $k2 . ']', $v2);
  215. return $ret;
  216. }
  217. }
  218. function construct_query_string($get)
  219. {
  220. global $scripturl;
  221. $query_string = '';
  222. // Awww, darn. The $scripturl contains GET stuff!
  223. $q = strpos($scripturl, '?');
  224. if ($q !== false)
  225. {
  226. parse_str(preg_replace('/&(\w+)(?=&|$)/', '&$1=', strtr(substr($scripturl, $q + 1), ';', '&')), $temp);
  227. foreach ($get as $k => $v)
  228. {
  229. // Only if it's not already in the $scripturl!
  230. if (!isset($temp[$k]))
  231. $query_string .= urlencode($k) . '=' . urlencode($v) . ';';
  232. // If it changed, put it out there, but with an ampersand.
  233. elseif ($temp[$k] != $get[$k])
  234. $query_string .= urlencode($k) . '=' . urlencode($v) . '&amp;';
  235. }
  236. }
  237. else
  238. {
  239. // Add up all the data from $_GET into get_data.
  240. foreach ($get as $k => $v)
  241. $query_string .= urlencode($k) . '=' . urlencode($v) . ';';
  242. }
  243. $query_string = substr($query_string, 0, -1);
  244. return $query_string;
  245. }
  246. // Find members by email address, username, or real name.
  247. /**
  248. * searches for members whose username, display name, or e-mail address match the given pattern of array names.
  249. * searches only buddies if buddies_only is set.
  250. * @param array $names,
  251. * @param bool $use_wildcards = false, accepts wildcards ? and * in the patern if true
  252. * @param bool $buddies_only = false,
  253. * @param int $max = 500 retrieves a maximum of max members, if passed
  254. * @return array containing information about the matching members
  255. */
  256. function findMembers($names, $use_wildcards = false, $buddies_only = false, $max = 500)
  257. {
  258. global $scripturl, $user_info, $modSettings, $smcFunc;
  259. // If it's not already an array, make it one.
  260. if (!is_array($names))
  261. $names = explode(',', $names);
  262. $maybe_email = false;
  263. foreach ($names as $i => $name)
  264. {
  265. // Trim, and fix wildcards for each name.
  266. $names[$i] = trim($smcFunc['strtolower']($name));
  267. $maybe_email |= strpos($name, '@') !== false;
  268. // Make it so standard wildcards will work. (* and ?)
  269. if ($use_wildcards)
  270. $names[$i] = strtr($names[$i], array('%' => '\%', '_' => '\_', '*' => '%', '?' => '_', '\'' => '&#039;'));
  271. else
  272. $names[$i] = strtr($names[$i], array('\'' => '&#039;'));
  273. }
  274. // What are we using to compare?
  275. $comparison = $use_wildcards ? 'LIKE' : '=';
  276. // Nothing found yet.
  277. $results = array();
  278. // This ensures you can't search someones email address if you can't see it.
  279. $email_condition = allowedTo('moderate_forum') ? '' : 'hide_email = 0 AND ';
  280. if ($use_wildcards || $maybe_email)
  281. $email_condition = '
  282. OR (' . $email_condition . 'email_address ' . $comparison . ' \'' . implode( '\') OR (' . $email_condition . ' email_address ' . $comparison . ' \'', $names) . '\')';
  283. else
  284. $email_condition = '';
  285. // Get the case of the columns right - but only if we need to as things like MySQL will go slow needlessly otherwise.
  286. $member_name = $smcFunc['db_case_sensitive'] ? 'LOWER(member_name)' : 'member_name';
  287. $real_name = $smcFunc['db_case_sensitive'] ? 'LOWER(real_name)' : 'real_name';
  288. // Search by username, display name, and email address.
  289. $request = $smcFunc['db_query']('', '
  290. SELECT id_member, member_name, real_name, email_address, hide_email
  291. FROM {db_prefix}members
  292. WHERE ({raw:member_name_search}
  293. OR {raw:real_name_search} {raw:email_condition})
  294. ' . ($buddies_only ? 'AND id_member IN ({array_int:buddy_list})' : '') . '
  295. AND is_activated IN (1, 11)
  296. LIMIT {int:limit}',
  297. array(
  298. 'buddy_list' => $user_info['buddies'],
  299. 'member_name_search' => $member_name . ' ' . $comparison . ' \'' . implode( '\' OR ' . $member_name . ' ' . $comparison . ' \'', $names) . '\'',
  300. 'real_name_search' => $real_name . ' ' . $comparison . ' \'' . implode( '\' OR ' . $real_name . ' ' . $comparison . ' \'', $names) . '\'',
  301. 'email_condition' => $email_condition,
  302. 'limit' => $max,
  303. )
  304. );
  305. while ($row = $smcFunc['db_fetch_assoc']($request))
  306. {
  307. $results[$row['id_member']] = array(
  308. 'id' => $row['id_member'],
  309. 'name' => $row['real_name'],
  310. 'username' => $row['member_name'],
  311. 'email' => in_array(showEmailAddress(!empty($row['hide_email']), $row['id_member']), array('yes', 'yes_permission_override')) ? $row['email_address'] : '',
  312. 'href' => $scripturl . '?action=profile;u=' . $row['id_member'],
  313. 'link' => '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['real_name'] . '</a>'
  314. );
  315. }
  316. $smcFunc['db_free_result']($request);
  317. // Return all the results.
  318. return $results;
  319. }
  320. /**
  321. * called by index.php?action=findmember.
  322. * is used as a popup for searching members.
  323. * uses sub template find_members of the Help template.
  324. * also used to add members for PM's sent using wap2/imode protocol.
  325. */
  326. function JSMembers()
  327. {
  328. global $context, $scripturl, $user_info, $smcFunc;
  329. checkSession('get');
  330. if (WIRELESS)
  331. $context['sub_template'] = WIRELESS_PROTOCOL . '_pm';
  332. else
  333. {
  334. // Why is this in the Help template, you ask? Well, erm... it helps you. Does that work?
  335. loadTemplate('Help');
  336. $context['template_layers'] = array();
  337. $context['sub_template'] = 'find_members';
  338. }
  339. if (isset($_REQUEST['search']))
  340. $context['last_search'] = $smcFunc['htmlspecialchars']($_REQUEST['search'], ENT_QUOTES);
  341. else
  342. $_REQUEST['start'] = 0;
  343. // Allow the user to pass the input to be added to to the box.
  344. $context['input_box_name'] = isset($_REQUEST['input']) && preg_match('~^[\w-]+$~', $_REQUEST['input']) === 1 ? $_REQUEST['input'] : 'to';
  345. // Take the delimiter over GET in case it's \n or something.
  346. $context['delimiter'] = isset($_REQUEST['delim']) ? ($_REQUEST['delim'] == 'LB' ? "\n" : $_REQUEST['delim']) : ', ';
  347. $context['quote_results'] = !empty($_REQUEST['quote']);
  348. // List all the results.
  349. $context['results'] = array();
  350. // Some buddy related settings ;)
  351. $context['show_buddies'] = !empty($user_info['buddies']);
  352. $context['buddy_search'] = isset($_REQUEST['buddies']);
  353. // If the user has done a search, well - search.
  354. if (isset($_REQUEST['search']))
  355. {
  356. $_REQUEST['search'] = $smcFunc['htmlspecialchars']($_REQUEST['search'], ENT_QUOTES);
  357. $context['results'] = findMembers(array($_REQUEST['search']), true, $context['buddy_search']);
  358. $total_results = count($context['results']);
  359. $context['page_index'] = constructPageIndex($scripturl . '?action=findmember;search=' . $context['last_search'] . ';' . $context['session_var'] . '=' . $context['session_id'] . ';input=' . $context['input_box_name'] . ($context['quote_results'] ? ';quote=1' : '') . ($context['buddy_search'] ? ';buddies' : ''), $_REQUEST['start'], $total_results, 7);
  360. // Determine the navigation context (especially useful for the wireless template).
  361. $base_url = $scripturl . '?action=findmember;search=' . urlencode($context['last_search']) . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']) . ';' . $context['session_var'] . '=' . $context['session_id'];
  362. $context['links'] = array(
  363. 'first' => $_REQUEST['start'] >= 7 ? $base_url . ';start=0' : '',
  364. 'prev' => $_REQUEST['start'] >= 7 ? $base_url . ';start=' . ($_REQUEST['start'] - 7) : '',
  365. 'next' => $_REQUEST['start'] + 7 < $total_results ? $base_url . ';start=' . ($_REQUEST['start'] + 7) : '',
  366. 'last' => $_REQUEST['start'] + 7 < $total_results ? $base_url . ';start=' . (floor(($total_results - 1) / 7) * 7) : '',
  367. 'up' => $scripturl . '?action=pm;sa=send' . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']),
  368. );
  369. $context['page_info'] = array(
  370. 'current_page' => $_REQUEST['start'] / 7 + 1,
  371. 'num_pages' => floor(($total_results - 1) / 7) + 1
  372. );
  373. $context['results'] = array_slice($context['results'], $_REQUEST['start'], 7);
  374. }
  375. else
  376. $context['links']['up'] = $scripturl . '?action=pm;sa=send' . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']);
  377. }
  378. /**
  379. * outputs each member name on its own line.
  380. * used by javascript to find members matching the request.
  381. */
  382. function RequestMembers()
  383. {
  384. global $user_info, $txt, $smcFunc;
  385. checkSession('get');
  386. $_REQUEST['search'] = $smcFunc['htmlspecialchars']($_REQUEST['search']) . '*';
  387. $_REQUEST['search'] = trim($smcFunc['strtolower']($_REQUEST['search']));
  388. $_REQUEST['search'] = strtr($_REQUEST['search'], array('%' => '\%', '_' => '\_', '*' => '%', '?' => '_', '&#038;' => '&amp;'));
  389. if (function_exists('iconv'))
  390. header('Content-Type: text/plain; charset=UTF-8');
  391. $request = $smcFunc['db_query']('', '
  392. SELECT real_name
  393. FROM {db_prefix}members
  394. WHERE real_name LIKE {string:search}' . (isset($_REQUEST['buddies']) ? '
  395. AND id_member IN ({array_int:buddy_list})' : '') . '
  396. AND is_activated IN (1, 11)
  397. LIMIT ' . ($smcFunc['strlen']($_REQUEST['search']) <= 2 ? '100' : '800'),
  398. array(
  399. 'buddy_list' => $user_info['buddies'],
  400. 'search' => $_REQUEST['search'],
  401. )
  402. );
  403. while ($row = $smcFunc['db_fetch_assoc']($request))
  404. {
  405. if (function_exists('iconv'))
  406. {
  407. $utf8 = iconv($txt['lang_character_set'], 'UTF-8', $row['real_name']);
  408. if ($utf8)
  409. $row['real_name'] = $utf8;
  410. }
  411. $row['real_name'] = strtr($row['real_name'], array('&amp;' => '&#038;', '&lt;' => '&#060;', '&gt;' => '&#062;', '&quot;' => '&#034;'));
  412. if (preg_match('~&#\d+;~', $row['real_name']) != 0)
  413. {
  414. $fixchar = create_function('$n', '
  415. if ($n < 128)
  416. return chr($n);
  417. elseif ($n < 2048)
  418. return chr(192 | $n >> 6) . chr(128 | $n & 63);
  419. elseif ($n < 65536)
  420. return chr(224 | $n >> 12) . chr(128 | $n >> 6 & 63) . chr(128 | $n & 63);
  421. else
  422. return chr(240 | $n >> 18) . chr(128 | $n >> 12 & 63) . chr(128 | $n >> 6 & 63) . chr(128 | $n & 63);');
  423. $row['real_name'] = preg_replace('~&#(\d+);~e', '$fixchar(\'$1\')', $row['real_name']);
  424. }
  425. echo $row['real_name'], "\n";
  426. }
  427. $smcFunc['db_free_result']($request);
  428. obExit(false);
  429. }
  430. /**
  431. * Generates a random password for a user and emails it to them.
  432. * called by Profile.php when changing someone's username.
  433. * checks the validity of the new username.
  434. * generates and sets a new password for the given user.
  435. * mails the new password to the email address of the user.
  436. * if username is not set, only a new password is generated and sent.
  437. * @param int $memID
  438. * @param string $username = null
  439. */
  440. function resetPassword($memID, $username = null)
  441. {
  442. global $scripturl, $context, $txt, $sourcedir, $modSettings, $smcFunc, $language;
  443. // Language... and a required file.
  444. loadLanguage('Login');
  445. require_once($sourcedir . '/Subs-Post.php');
  446. // Get some important details.
  447. $request = $smcFunc['db_query']('', '
  448. SELECT member_name, email_address, lngfile
  449. FROM {db_prefix}members
  450. WHERE id_member = {int:id_member}',
  451. array(
  452. 'id_member' => $memID,
  453. )
  454. );
  455. list ($user, $email, $lngfile) = $smcFunc['db_fetch_row']($request);
  456. $smcFunc['db_free_result']($request);
  457. if ($username !== null)
  458. {
  459. $old_user = $user;
  460. $user = trim($username);
  461. }
  462. // Generate a random password.
  463. $newPassword = substr(preg_replace('/\W/', '', md5(mt_rand())), 0, 10);
  464. $newPassword_sha1 = sha1(strtolower($user) . $newPassword);
  465. // Do some checks on the username if needed.
  466. if ($username !== null)
  467. {
  468. validateUsername($memID, $user);
  469. // Update the database...
  470. updateMemberData($memID, array('member_name' => $user, 'passwd' => $newPassword_sha1));
  471. }
  472. else
  473. updateMemberData($memID, array('passwd' => $newPassword_sha1));
  474. call_integration_hook('integrate_reset_pass', array($old_user, $user, $newPassword));
  475. $replacements = array(
  476. 'USERNAME' => $user,
  477. 'PASSWORD' => $newPassword,
  478. );
  479. $emaildata = loadEmailTemplate('change_password', $replacements, empty($lngfile) || empty($modSettings['userLanguage']) ? $language : $lngfile);
  480. // Send them the email informing them of the change - then we're done!
  481. sendmail($email, $emaildata['subject'], $emaildata['body'], null, null, false, 0);
  482. }
  483. /**
  484. * Checks a username obeys a load of rules
  485. * @param int $memID,
  486. * @param string $username
  487. * @return string Returns null if fine
  488. */
  489. function validateUsername($memID, $username)
  490. {
  491. global $sourcedir, $txt;
  492. // No name?! How can you register with no name?
  493. if ($username == '')
  494. fatal_lang_error('need_username', false);
  495. // Only these characters are permitted.
  496. if (in_array($username, array('_', '|')) || preg_match('~[<>&"\'=\\\\]~', preg_replace('~&#(?:\\d{1,7}|x[0-9a-fA-F]{1,6});~', '', $username)) != 0 || strpos($username, '[code') !== false || strpos($username, '[/code') !== false)
  497. fatal_lang_error('error_invalid_characters_username', false);
  498. if (stristr($username, $txt['guest_title']) !== false)
  499. fatal_lang_error('username_reserved', true, array($txt['guest_title']));
  500. require_once($sourcedir . '/Subs-Members.php');
  501. if (isReservedName($username, $memID, false))
  502. fatal_error('(' . htmlspecialchars($username) . ') ' . $txt['name_in_use'], false);
  503. return null;
  504. }
  505. /**
  506. * Checks whether a password meets the current forum rules
  507. * called when registering/choosing a password.
  508. * checks the password obeys the current forum settings for password strength.
  509. * if password checking is enabled, will check that none of the words in restrict_in appear in the password.
  510. * returns an error identifier if the password is invalid, or null.
  511. * @param string $password
  512. * @param string $username
  513. * @param array $restrict_in = array()
  514. * @return string an error identifier if the password is invalid
  515. */
  516. function validatePassword($password, $username, $restrict_in = array())
  517. {
  518. global $modSettings, $smcFunc;
  519. // Perform basic requirements first.
  520. if ($smcFunc['strlen']($password) < (empty($modSettings['password_strength']) ? 4 : 8))
  521. return 'short';
  522. // Is this enough?
  523. if (empty($modSettings['password_strength']))
  524. return null;
  525. // Otherwise, perform the medium strength test - checking if password appears in the restricted string.
  526. if (preg_match('~\b' . preg_quote($password, '~') . '\b~', implode(' ', $restrict_in)) != 0)
  527. return 'restricted_words';
  528. elseif ($smcFunc['strpos']($password, $username) !== false)
  529. return 'restricted_words';
  530. // @todo If pspell is available, use it on the word, and return restricted_words if it doesn't give "bad spelling"?
  531. // If just medium, we're done.
  532. if ($modSettings['password_strength'] == 1)
  533. return null;
  534. // Otherwise, hard test next, check for numbers and letters, uppercase too.
  535. $good = preg_match('~(\D\d|\d\D)~', $password) != 0;
  536. $good &= $smcFunc['strtolower']($password) != $password;
  537. return $good ? null : 'chars';
  538. }
  539. /**
  540. * Quickly find out what this user can and cannot do.
  541. * stores some useful information on the current users moderation powers in the session.
  542. */
  543. function rebuildModCache()
  544. {
  545. global $user_info, $smcFunc;
  546. // What groups can they moderate?
  547. $group_query = allowedTo('manage_membergroups') ? '1=1' : '0=1';
  548. if ($group_query == '0=1')
  549. {
  550. $request = $smcFunc['db_query']('', '
  551. SELECT id_group
  552. FROM {db_prefix}group_moderators
  553. WHERE id_member = {int:current_member}',
  554. array(
  555. 'current_member' => $user_info['id'],
  556. )
  557. );
  558. $groups = array();
  559. while ($row = $smcFunc['db_fetch_assoc']($request))
  560. $groups[] = $row['id_group'];
  561. $smcFunc['db_free_result']($request);
  562. if (empty($groups))
  563. $group_query = '0=1';
  564. else
  565. $group_query = 'id_group IN (' . implode(',', $groups) . ')';
  566. }
  567. // Then, same again, just the boards this time!
  568. $board_query = allowedTo('moderate_forum') ? '1=1' : '0=1';
  569. if ($board_query == '0=1')
  570. {
  571. $boards = boardsAllowedTo('moderate_board', true);
  572. if (empty($boards))
  573. $board_query = '0=1';
  574. else
  575. $board_query = 'id_board IN (' . implode(',', $boards) . ')';
  576. }
  577. // What boards are they the moderator of?
  578. $boards_mod = array();
  579. if (!$user_info['is_guest'])
  580. {
  581. $request = $smcFunc['db_query']('', '
  582. SELECT id_board
  583. FROM {db_prefix}moderators
  584. WHERE id_member = {int:current_member}',
  585. array(
  586. 'current_member' => $user_info['id'],
  587. )
  588. );
  589. while ($row = $smcFunc['db_fetch_assoc']($request))
  590. $boards_mod[] = $row['id_board'];
  591. $smcFunc['db_free_result']($request);
  592. }
  593. $mod_query = empty($boards_mod) ? '0=1' : 'b.id_board IN (' . implode(',', $boards_mod) . ')';
  594. $_SESSION['mc'] = array(
  595. 'time' => time(),
  596. // This looks a bit funny but protects against the login redirect.
  597. 'id' => $user_info['id'] && $user_info['name'] ? $user_info['id'] : 0,
  598. // If you change the format of 'gq' and/or 'bq' make sure to adjust 'can_mod' in Load.php.
  599. 'gq' => $group_query,
  600. 'bq' => $board_query,
  601. 'ap' => boardsAllowedTo('approve_posts'),
  602. 'mb' => $boards_mod,
  603. 'mq' => $mod_query,
  604. );
  605. $user_info['mod_cache'] = $_SESSION['mc'];
  606. // Might as well clean up some tokens while we are at it.
  607. cleanTokens();
  608. }
  609. /**
  610. * The same thing as setcookie but gives support for HTTP-Only cookies in PHP < 5.2
  611. * @param string $name
  612. * @param string $value = ''
  613. * @param int $expire = 0
  614. * @param string $path = ''
  615. * @param string $domain = ''
  616. * @param bool $secure = false
  617. * @param bool $httponly = null
  618. */
  619. function smf_setcookie($name, $value = '', $expire = 0, $path = '', $domain = '', $secure = null, $httponly = null)
  620. {
  621. global $modSettings;
  622. // In case a customization wants to override the default settings
  623. if ($httponly === null)
  624. $httponly = !empty($modSettings['httponlyCookies']);
  625. if ($secure === null)
  626. $secure = !empty($modSettings['secureCookies']);
  627. // This function is pointless if we have PHP >= 5.2.
  628. if (version_compare(PHP_VERSION, '5.2', '>='))
  629. return setcookie($name, $value, $expire, $path, $domain, $secure, $httponly);
  630. // $httponly is the only reason I made this function. If it's not being used, use setcookie().
  631. if (!$httponly)
  632. return setcookie($name, $value, $expire, $path, $domain, $secure);
  633. // Ugh, looks like we have to resort to using a manual process.
  634. header('Set-Cookie: '.rawurlencode($name).'='.rawurlencode($value)
  635. .(empty($domain) ? '' : '; Domain='.$domain)
  636. .(empty($expire) ? '' : '; Max-Age='.$expire)
  637. .(empty($path) ? '' : '; Path='.$path)
  638. .(!$secure ? '' : '; Secure')
  639. .(!$httponly ? '' : '; HttpOnly'), false);
  640. }
  641. ?>