Subs-Auth.php 28 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 2013 Simple Machines and individual contributors
  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('No direct access...');
  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. *
  23. * @param int $cookie_length
  24. * @param int $id The id of the member
  25. * @param string $password = ''
  26. */
  27. function setLoginCookie($cookie_length, $id, $password = '')
  28. {
  29. global $cookiename, $boardurl, $modSettings, $sourcedir;
  30. // If changing state force them to re-address some permission caching.
  31. $_SESSION['mc']['time'] = 0;
  32. // The cookie may already exist, and have been set with different options.
  33. $cookie_state = (empty($modSettings['localCookies']) ? 0 : 1) | (empty($modSettings['globalCookies']) ? 0 : 2);
  34. if (isset($_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)
  35. {
  36. $array = @unserialize($_COOKIE[$cookiename]);
  37. // Out with the old, in with the new!
  38. if (isset($array[3]) && $array[3] != $cookie_state)
  39. {
  40. $cookie_url = url_parts($array[3] & 1 > 0, $array[3] & 2 > 0);
  41. smf_setcookie($cookiename, serialize(array(0, '', 0)), time() - 3600, $cookie_url[1], $cookie_url[0]);
  42. }
  43. }
  44. // Get the data and path to set it on.
  45. $data = serialize(empty($id) ? array(0, '', 0) : array($id, $password, time() + $cookie_length, $cookie_state));
  46. $cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
  47. // Set the cookie, $_COOKIE, and session variable.
  48. smf_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
  49. // If subdomain-independent cookies are on, unset the subdomain-dependent cookie too.
  50. if (empty($id) && !empty($modSettings['globalCookies']))
  51. smf_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], '');
  52. // Any alias URLs? This is mainly for use with frames, etc.
  53. if (!empty($modSettings['forum_alias_urls']))
  54. {
  55. $aliases = explode(',', $modSettings['forum_alias_urls']);
  56. $temp = $boardurl;
  57. foreach ($aliases as $alias)
  58. {
  59. // Fake the $boardurl so we can set a different cookie.
  60. $alias = strtr(trim($alias), array('http://' => '', 'https://' => ''));
  61. $boardurl = 'http://' . $alias;
  62. $cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
  63. if ($cookie_url[0] == '')
  64. $cookie_url[0] = strtok($alias, '/');
  65. smf_setcookie($cookiename, $data, time() + $cookie_length, $cookie_url[1], $cookie_url[0]);
  66. }
  67. $boardurl = $temp;
  68. }
  69. $_COOKIE[$cookiename] = $data;
  70. // Make sure the user logs in with a new session ID.
  71. if (!isset($_SESSION['login_' . $cookiename]) || $_SESSION['login_' . $cookiename] !== $data)
  72. {
  73. // We need to meddle with the session.
  74. require_once($sourcedir . '/Session.php');
  75. // Backup and remove the old session.
  76. $oldSessionData = $_SESSION;
  77. $_SESSION = array();
  78. session_destroy();
  79. // Recreate and restore the new session.
  80. loadSession();
  81. // @todo should we use session_regenerate_id(true); now that we are 5.1+
  82. session_regenerate_id();
  83. $_SESSION = $oldSessionData;
  84. $_SESSION['login_' . $cookiename] = $data;
  85. }
  86. }
  87. /**
  88. * Get the domain and path for the cookie
  89. * - normally, local and global should be the localCookies and globalCookies settings, respectively.
  90. * - uses boardurl to determine these two things.
  91. *
  92. * @param bool $local
  93. * @param bool $global
  94. * @return array an array to set the cookie on with domain and path in it, in that order
  95. */
  96. function url_parts($local, $global)
  97. {
  98. global $boardurl, $modSettings;
  99. // Parse the URL with PHP to make life easier.
  100. $parsed_url = parse_url($boardurl);
  101. // Is local cookies off?
  102. if (empty($parsed_url['path']) || !$local)
  103. $parsed_url['path'] = '';
  104. if (!empty($modSettings['globalCookiesDomain']) && strpos($boardurl, $modSettings['globalCookiesDomain']) !== false)
  105. $parsed_url['host'] = $modSettings['globalCookiesDomain'];
  106. // Globalize cookies across domains (filter out IP-addresses)?
  107. elseif ($global && preg_match('~^\d{1,3}(\.\d{1,3}){3}$~', $parsed_url['host']) == 0 && preg_match('~(?:[^\.]+\.)?([^\.]{2,}\..+)\z~i', $parsed_url['host'], $parts) == 1)
  108. $parsed_url['host'] = '.' . $parts[1];
  109. // We shouldn't use a host at all if both options are off.
  110. elseif (!$local && !$global)
  111. $parsed_url['host'] = '';
  112. // The host also shouldn't be set if there aren't any dots in it.
  113. elseif (!isset($parsed_url['host']) || strpos($parsed_url['host'], '.') === false)
  114. $parsed_url['host'] = '';
  115. return array($parsed_url['host'], $parsed_url['path'] . '/');
  116. }
  117. /**
  118. * Throws guests out to the login screen when guest access is off.
  119. * - sets $_SESSION['login_url'] to $_SERVER['REQUEST_URL'].
  120. * - uses the 'kick_guest' sub template found in Login.template.php.
  121. */
  122. function KickGuest()
  123. {
  124. global $txt, $context;
  125. loadLanguage('Login');
  126. loadTemplate('Login');
  127. createToken('login');
  128. // Never redirect to an attachment
  129. if (strpos($_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 the forum being in maintenance mode.
  136. * - display a login screen with sub template 'maintenance'.
  137. * - sends a 503 header, so search engines don't bother indexing while we're in maintenance mode.
  138. */
  139. function InMaintenance()
  140. {
  141. global $txt, $mtitle, $mmessage, $context;
  142. loadLanguage('Login');
  143. loadTemplate('Login');
  144. createToken('login');
  145. // Send a 503 header, so search engines don't bother indexing while we're in maintenance mode.
  146. header('HTTP/1.1 503 Service Temporarily Unavailable');
  147. // Basic template stuff..
  148. $context['sub_template'] = 'maintenance';
  149. $context['title'] = &$mtitle;
  150. $context['description'] = &$mmessage;
  151. $context['page_title'] = $txt['maintain_mode'];
  152. }
  153. /**
  154. * Question the verity of the admin by asking for his or her password.
  155. * - loads Login.template.php and uses the admin_login sub template.
  156. * - sends data to template so the admin is sent on to the page they
  157. * wanted if their password is correct, otherwise they can try again.
  158. *
  159. * @param string $type = 'admin'
  160. */
  161. function adminLogin($type = 'admin')
  162. {
  163. global $context, $scripturl, $txt, $user_info, $user_settings;
  164. loadLanguage('Admin');
  165. loadTemplate('Login');
  166. // Validate what type of session check this is.
  167. $types = array();
  168. call_integration_hook('integrate_validateSession', array(&$types));
  169. $type = in_array($type, $types) || $type == 'moderate' ? $type : 'admin';
  170. // They used a wrong password, log it and unset that.
  171. if (isset($_POST[$type . '_hash_pass']) || isset($_POST[$type . '_pass']))
  172. {
  173. $txt['security_wrong'] = sprintf($txt['security_wrong'], isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : $txt['unknown'], $_SERVER['HTTP_USER_AGENT'], $user_info['ip']);
  174. log_error($txt['security_wrong'], 'critical');
  175. if (isset($_POST[$type . '_hash_pass']))
  176. unset($_POST[$type . '_hash_pass']);
  177. if (isset($_POST[$type . '_pass']))
  178. unset($_POST[$type . '_pass']);
  179. $context['incorrect_password'] = true;
  180. }
  181. createToken('admin-login');
  182. // Figure out the get data and post data.
  183. $context['get_data'] = '?' . construct_query_string($_GET);
  184. $context['post_data'] = '';
  185. // Now go through $_POST. Make sure the session hash is sent.
  186. $_POST[$context['session_var']] = $context['session_id'];
  187. foreach ($_POST as $k => $v)
  188. $context['post_data'] .= adminLogin_outputPostVars($k, $v);
  189. // Now we'll use the admin_login sub template of the Login template.
  190. $context['sub_template'] = 'admin_login';
  191. // And title the page something like "Login".
  192. if (!isset($context['page_title']))
  193. $context['page_title'] = $txt['login'];
  194. // The type of action.
  195. $context['sessionCheckType'] = $type;
  196. obExit();
  197. // We MUST exit at this point, because otherwise we CANNOT KNOW that the user is privileged.
  198. trigger_error('Hacking attempt...', E_USER_ERROR);
  199. }
  200. /**
  201. * Used by the adminLogin() function.
  202. * if 'value' is an array, the function is called recursively.
  203. *
  204. * @param string $k key
  205. * @param string $v value
  206. * @return string 'hidden' HTML form fields, containing key-value-pairs
  207. */
  208. function adminLogin_outputPostVars($k, $v)
  209. {
  210. global $smcFunc;
  211. if (!is_array($v))
  212. return '
  213. <input type="hidden" name="' . htmlspecialchars($k) . '" value="' . strtr($v, array('"' => '&quot;', '<' => '&lt;', '>' => '&gt;')) . '" />';
  214. else
  215. {
  216. $ret = '';
  217. foreach ($v as $k2 => $v2)
  218. $ret .= adminLogin_outputPostVars($k . '[' . $k2 . ']', $v2);
  219. return $ret;
  220. }
  221. }
  222. /**
  223. * Properly urlencodes a string to be used in a query
  224. *
  225. * @global type $scripturl
  226. * @param type $get
  227. * @return our query string
  228. */
  229. function construct_query_string($get)
  230. {
  231. global $scripturl;
  232. $query_string = '';
  233. // Awww, darn. The $scripturl contains GET stuff!
  234. $q = strpos($scripturl, '?');
  235. if ($q !== false)
  236. {
  237. parse_str(preg_replace('/&(\w+)(?=&|$)/', '&$1=', strtr(substr($scripturl, $q + 1), ';', '&')), $temp);
  238. foreach ($get as $k => $v)
  239. {
  240. // Only if it's not already in the $scripturl!
  241. if (!isset($temp[$k]))
  242. $query_string .= urlencode($k) . '=' . urlencode($v) . ';';
  243. // If it changed, put it out there, but with an ampersand.
  244. elseif ($temp[$k] != $get[$k])
  245. $query_string .= urlencode($k) . '=' . urlencode($v) . '&amp;';
  246. }
  247. }
  248. else
  249. {
  250. // Add up all the data from $_GET into get_data.
  251. foreach ($get as $k => $v)
  252. $query_string .= urlencode($k) . '=' . urlencode($v) . ';';
  253. }
  254. $query_string = substr($query_string, 0, -1);
  255. return $query_string;
  256. }
  257. /**
  258. * Finds members by email address, username, or real name.
  259. * - searches for members whose username, display name, or e-mail address match the given pattern of array names.
  260. * - searches only buddies if buddies_only is set.
  261. *
  262. * @param array $names
  263. * @param bool $use_wildcards = false, accepts wildcards ? and * in the patern if true
  264. * @param bool $buddies_only = false,
  265. * @param int $max = 500 retrieves a maximum of max members, if passed
  266. * @return array containing information about the matching members
  267. */
  268. function findMembers($names, $use_wildcards = false, $buddies_only = false, $max = 500)
  269. {
  270. global $scripturl, $user_info, $modSettings, $smcFunc;
  271. // If it's not already an array, make it one.
  272. if (!is_array($names))
  273. $names = explode(',', $names);
  274. $maybe_email = false;
  275. foreach ($names as $i => $name)
  276. {
  277. // Trim, and fix wildcards for each name.
  278. $names[$i] = trim($smcFunc['strtolower']($name));
  279. $maybe_email |= strpos($name, '@') !== false;
  280. // Make it so standard wildcards will work. (* and ?)
  281. if ($use_wildcards)
  282. $names[$i] = strtr($names[$i], array('%' => '\%', '_' => '\_', '*' => '%', '?' => '_', '\'' => '&#039;'));
  283. else
  284. $names[$i] = strtr($names[$i], array('\'' => '&#039;'));
  285. }
  286. // What are we using to compare?
  287. $comparison = $use_wildcards ? 'LIKE' : '=';
  288. // Nothing found yet.
  289. $results = array();
  290. // This ensures you can't search someones email address if you can't see it.
  291. $email_condition = allowedTo('moderate_forum') ? '' : 'hide_email = 0 AND ';
  292. if ($use_wildcards || $maybe_email)
  293. $email_condition = '
  294. OR (' . $email_condition . 'email_address ' . $comparison . ' \'' . implode( '\') OR (' . $email_condition . ' email_address ' . $comparison . ' \'', $names) . '\')';
  295. else
  296. $email_condition = '';
  297. // Get the case of the columns right - but only if we need to as things like MySQL will go slow needlessly otherwise.
  298. $member_name = $smcFunc['db_case_sensitive'] ? 'LOWER(member_name)' : 'member_name';
  299. $real_name = $smcFunc['db_case_sensitive'] ? 'LOWER(real_name)' : 'real_name';
  300. // Search by username, display name, and email address.
  301. $request = $smcFunc['db_query']('', '
  302. SELECT id_member, member_name, real_name, email_address, hide_email
  303. FROM {db_prefix}members
  304. WHERE ({raw:member_name_search}
  305. OR {raw:real_name_search} {raw:email_condition})
  306. ' . ($buddies_only ? 'AND id_member IN ({array_int:buddy_list})' : '') . '
  307. AND is_activated IN (1, 11)
  308. LIMIT {int:limit}',
  309. array(
  310. 'buddy_list' => $user_info['buddies'],
  311. 'member_name_search' => $member_name . ' ' . $comparison . ' \'' . implode( '\' OR ' . $member_name . ' ' . $comparison . ' \'', $names) . '\'',
  312. 'real_name_search' => $real_name . ' ' . $comparison . ' \'' . implode( '\' OR ' . $real_name . ' ' . $comparison . ' \'', $names) . '\'',
  313. 'email_condition' => $email_condition,
  314. 'limit' => $max,
  315. )
  316. );
  317. while ($row = $smcFunc['db_fetch_assoc']($request))
  318. {
  319. $results[$row['id_member']] = array(
  320. 'id' => $row['id_member'],
  321. 'name' => $row['real_name'],
  322. 'username' => $row['member_name'],
  323. 'email' => in_array(showEmailAddress(!empty($row['hide_email']), $row['id_member']), array('yes', 'yes_permission_override')) ? $row['email_address'] : '',
  324. 'href' => $scripturl . '?action=profile;u=' . $row['id_member'],
  325. 'link' => '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['real_name'] . '</a>'
  326. );
  327. }
  328. $smcFunc['db_free_result']($request);
  329. // Return all the results.
  330. return $results;
  331. }
  332. /**
  333. * Called by index.php?action=findmember.
  334. * - is used as a popup for searching members.
  335. * - uses sub template find_members of the Help template.
  336. * - also used to add members for PM's sent using wap2/imode protocol.
  337. */
  338. function JSMembers()
  339. {
  340. global $context, $scripturl, $user_info, $smcFunc;
  341. checkSession('get');
  342. if (WIRELESS)
  343. $context['sub_template'] = WIRELESS_PROTOCOL . '_pm';
  344. else
  345. {
  346. // Why is this in the Help template, you ask? Well, erm... it helps you. Does that work?
  347. loadTemplate('Help');
  348. $context['template_layers'] = array();
  349. $context['sub_template'] = 'find_members';
  350. }
  351. if (isset($_REQUEST['search']))
  352. $context['last_search'] = $smcFunc['htmlspecialchars']($_REQUEST['search'], ENT_QUOTES);
  353. else
  354. $_REQUEST['start'] = 0;
  355. // Allow the user to pass the input to be added to to the box.
  356. $context['input_box_name'] = isset($_REQUEST['input']) && preg_match('~^[\w-]+$~', $_REQUEST['input']) === 1 ? $_REQUEST['input'] : 'to';
  357. // Take the delimiter over GET in case it's \n or something.
  358. $context['delimiter'] = isset($_REQUEST['delim']) ? ($_REQUEST['delim'] == 'LB' ? "\n" : $_REQUEST['delim']) : ', ';
  359. $context['quote_results'] = !empty($_REQUEST['quote']);
  360. // List all the results.
  361. $context['results'] = array();
  362. // Some buddy related settings ;)
  363. $context['show_buddies'] = !empty($user_info['buddies']);
  364. $context['buddy_search'] = isset($_REQUEST['buddies']);
  365. // If the user has done a search, well - search.
  366. if (isset($_REQUEST['search']))
  367. {
  368. $_REQUEST['search'] = $smcFunc['htmlspecialchars']($_REQUEST['search'], ENT_QUOTES);
  369. $context['results'] = findMembers(array($_REQUEST['search']), true, $context['buddy_search']);
  370. $total_results = count($context['results']);
  371. $context['page_index'] = constructPageIndex($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);
  372. // Determine the navigation context (especially useful for the wireless template).
  373. $base_url = $scripturl . '?action=findmember;search=' . urlencode($context['last_search']) . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']) . ';' . $context['session_var'] . '=' . $context['session_id'];
  374. $context['links'] = array(
  375. 'first' => $_REQUEST['start'] >= 7 ? $base_url . ';start=0' : '',
  376. 'prev' => $_REQUEST['start'] >= 7 ? $base_url . ';start=' . ($_REQUEST['start'] - 7) : '',
  377. 'next' => $_REQUEST['start'] + 7 < $total_results ? $base_url . ';start=' . ($_REQUEST['start'] + 7) : '',
  378. 'last' => $_REQUEST['start'] + 7 < $total_results ? $base_url . ';start=' . (floor(($total_results - 1) / 7) * 7) : '',
  379. 'up' => $scripturl . '?action=pm;sa=send' . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']),
  380. );
  381. $context['page_info'] = array(
  382. 'current_page' => $_REQUEST['start'] / 7 + 1,
  383. 'num_pages' => floor(($total_results - 1) / 7) + 1
  384. );
  385. $context['results'] = array_slice($context['results'], $_REQUEST['start'], 7);
  386. }
  387. else
  388. $context['links']['up'] = $scripturl . '?action=pm;sa=send' . (empty($_REQUEST['u']) ? '' : ';u=' . $_REQUEST['u']);
  389. }
  390. /**
  391. * Outputs each member name on its own line.
  392. * - used by javascript to find members matching the request.
  393. */
  394. function RequestMembers()
  395. {
  396. global $user_info, $txt, $smcFunc;
  397. checkSession('get');
  398. $_REQUEST['search'] = $smcFunc['htmlspecialchars']($_REQUEST['search']) . '*';
  399. $_REQUEST['search'] = trim($smcFunc['strtolower']($_REQUEST['search']));
  400. $_REQUEST['search'] = strtr($_REQUEST['search'], array('%' => '\%', '_' => '\_', '*' => '%', '?' => '_', '&#038;' => '&amp;'));
  401. if (function_exists('iconv'))
  402. header('Content-Type: text/plain; charset=UTF-8');
  403. $request = $smcFunc['db_query']('', '
  404. SELECT real_name
  405. FROM {db_prefix}members
  406. WHERE {raw:real_name} LIKE {string:search}' . (isset($_REQUEST['buddies']) ? '
  407. AND id_member IN ({array_int:buddy_list})' : '') . '
  408. AND is_activated IN (1, 11)
  409. LIMIT ' . ($smcFunc['strlen']($_REQUEST['search']) <= 2 ? '100' : '800'),
  410. array(
  411. 'real_name' => $smcFunc['db_case_sensitive'] ? 'LOWER(real_name)' : 'real_name',
  412. 'buddy_list' => $user_info['buddies'],
  413. 'search' => $_REQUEST['search'],
  414. )
  415. );
  416. while ($row = $smcFunc['db_fetch_assoc']($request))
  417. {
  418. if (function_exists('iconv'))
  419. {
  420. $utf8 = iconv($txt['lang_character_set'], 'UTF-8', $row['real_name']);
  421. if ($utf8)
  422. $row['real_name'] = $utf8;
  423. }
  424. $row['real_name'] = strtr($row['real_name'], array('&amp;' => '&#038;', '&lt;' => '&#060;', '&gt;' => '&#062;', '&quot;' => '&#034;'));
  425. if (preg_match('~&#\d+;~', $row['real_name']) != 0)
  426. $row['real_name'] = preg_replace_callback('~&#(\d+);~', 'fixchar__callback', $row['real_name']);
  427. echo $row['real_name'], "\n";
  428. }
  429. $smcFunc['db_free_result']($request);
  430. obExit(false);
  431. }
  432. /**
  433. * Generates a random password for a user and emails it to them.
  434. * - called by Profile.php when changing someone's username.
  435. * - checks the validity of the new username.
  436. * - generates and sets a new password for the given user.
  437. * - mails the new password to the email address of the user.
  438. * - if username is not set, only a new password is generated and sent.
  439. *
  440. * @param int $memID
  441. * @param string $username = null
  442. */
  443. function resetPassword($memID, $username = null)
  444. {
  445. global $scripturl, $context, $txt, $sourcedir, $modSettings, $smcFunc, $language;
  446. // Language... and a required file.
  447. loadLanguage('Login');
  448. require_once($sourcedir . '/Subs-Post.php');
  449. // Get some important details.
  450. $request = $smcFunc['db_query']('', '
  451. SELECT member_name, email_address, lngfile
  452. FROM {db_prefix}members
  453. WHERE id_member = {int:id_member}',
  454. array(
  455. 'id_member' => $memID,
  456. )
  457. );
  458. list ($user, $email, $lngfile) = $smcFunc['db_fetch_row']($request);
  459. $smcFunc['db_free_result']($request);
  460. if ($username !== null)
  461. {
  462. $old_user = $user;
  463. $user = trim($username);
  464. }
  465. // Generate a random password.
  466. $newPassword = substr(preg_replace('/\W/', '', md5(mt_rand())), 0, 10);
  467. $newPassword_sha1 = sha1(strtolower($user) . $newPassword);
  468. // Do some checks on the username if needed.
  469. if ($username !== null)
  470. {
  471. validateUsername($memID, $user);
  472. // Update the database...
  473. updateMemberData($memID, array('member_name' => $user, 'passwd' => $newPassword_sha1));
  474. }
  475. else
  476. updateMemberData($memID, array('passwd' => $newPassword_sha1));
  477. call_integration_hook('integrate_reset_pass', array($old_user, $user, $newPassword));
  478. $replacements = array(
  479. 'USERNAME' => $user,
  480. 'PASSWORD' => $newPassword,
  481. );
  482. $emaildata = loadEmailTemplate('change_password', $replacements, empty($lngfile) || empty($modSettings['userLanguage']) ? $language : $lngfile);
  483. // Send them the email informing them of the change - then we're done!
  484. sendmail($email, $emaildata['subject'], $emaildata['body'], null, null, false, 0);
  485. }
  486. /**
  487. * Checks a username obeys a load of rules
  488. *
  489. * @param int $memID
  490. * @param string $username
  491. * @param boolean $return_error
  492. * @param boolean $check_reserved_name
  493. * @return string Returns null if fine
  494. */
  495. function validateUsername($memID, $username, $return_error = false, $check_reserved_name = true)
  496. {
  497. global $sourcedir, $txt, $smcFunc, $user_info;
  498. $errors = array();
  499. // Don't use too long a name.
  500. if ($smcFunc['strlen']($username) > 25)
  501. $errors[] = array('lang', 'error_long_name');
  502. // No name?! How can you register with no name?
  503. if ($username == '')
  504. $errors[] = array('lang', 'need_username');
  505. // Only these characters are permitted.
  506. if (in_array($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)
  507. $errors[] = array('lang', 'error_invalid_characters_username');
  508. if (stristr($username, $txt['guest_title']) !== false)
  509. $errors[] = array('lang', 'username_reserved', 'general', array($txt['guest_title']));
  510. if ($check_reserved_name)
  511. {
  512. require_once($sourcedir . '/Subs-Members.php');
  513. if (isReservedName($username, $memID, false))
  514. $errors[] = array('done', '(' . htmlspecialchars($username) . ') ' . $txt['name_in_use']);
  515. }
  516. if ($return_error)
  517. return $errors;
  518. elseif (empty($errors))
  519. return null;
  520. loadLanguage('Errors');
  521. $error = $errors[0];
  522. $message = $error[0] == 'lang' ? (empty($error[3]) ? $txt[$error[1]] : vsprintf($txt[$error[1]], $error[3])) : $error[1];
  523. fatal_error($message, empty($error[2]) || $user_info['is_admin'] ? false : $error[2]);
  524. }
  525. /**
  526. * Checks whether a password meets the current forum rules
  527. * - called when registering/choosing a password.
  528. * - checks the password obeys the current forum settings for password strength.
  529. * - if password checking is enabled, will check that none of the words in restrict_in appear in the password.
  530. * - returns an error identifier if the password is invalid, or null.
  531. *
  532. * @param string $password
  533. * @param string $username
  534. * @param array $restrict_in = array()
  535. * @return string an error identifier if the password is invalid
  536. */
  537. function validatePassword($password, $username, $restrict_in = array())
  538. {
  539. global $modSettings, $smcFunc;
  540. // Perform basic requirements first.
  541. if ($smcFunc['strlen']($password) < (empty($modSettings['password_strength']) ? 4 : 8))
  542. return 'short';
  543. // Is this enough?
  544. if (empty($modSettings['password_strength']))
  545. return null;
  546. // Otherwise, perform the medium strength test - checking if password appears in the restricted string.
  547. if (preg_match('~\b' . preg_quote($password, '~') . '\b~', implode(' ', $restrict_in)) != 0)
  548. return 'restricted_words';
  549. elseif ($smcFunc['strpos']($password, $username) !== false)
  550. return 'restricted_words';
  551. // If just medium, we're done.
  552. if ($modSettings['password_strength'] == 1)
  553. return null;
  554. // Otherwise, hard test next, check for numbers and letters, uppercase too.
  555. $good = preg_match('~(\D\d|\d\D)~', $password) != 0;
  556. $good &= $smcFunc['strtolower']($password) != $password;
  557. return $good ? null : 'chars';
  558. }
  559. /**
  560. * Quickly find out what moderation authority this user has
  561. * - builds the moderator, group and board level querys for the user
  562. * - stores the information on the current users moderation powers in $user_info['mod_cache'] and $_SESSION['mc']
  563. */
  564. function rebuildModCache()
  565. {
  566. global $user_info, $smcFunc;
  567. // What groups can they moderate?
  568. $group_query = allowedTo('manage_membergroups') ? '1=1' : '0=1';
  569. if ($group_query == '0=1')
  570. {
  571. $request = $smcFunc['db_query']('', '
  572. SELECT id_group
  573. FROM {db_prefix}group_moderators
  574. WHERE id_member = {int:current_member}',
  575. array(
  576. 'current_member' => $user_info['id'],
  577. )
  578. );
  579. $groups = array();
  580. while ($row = $smcFunc['db_fetch_assoc']($request))
  581. $groups[] = $row['id_group'];
  582. $smcFunc['db_free_result']($request);
  583. if (empty($groups))
  584. $group_query = '0=1';
  585. else
  586. $group_query = 'id_group IN (' . implode(',', $groups) . ')';
  587. }
  588. // Then, same again, just the boards this time!
  589. $board_query = allowedTo('moderate_forum') ? '1=1' : '0=1';
  590. if ($board_query == '0=1')
  591. {
  592. $boards = boardsAllowedTo('moderate_board', true);
  593. if (empty($boards))
  594. $board_query = '0=1';
  595. else
  596. $board_query = 'id_board IN (' . implode(',', $boards) . ')';
  597. }
  598. // What boards are they the moderator of?
  599. $boards_mod = array();
  600. if (!$user_info['is_guest'])
  601. {
  602. $request = $smcFunc['db_query']('', '
  603. SELECT id_board
  604. FROM {db_prefix}moderators
  605. WHERE id_member = {int:current_member}',
  606. array(
  607. 'current_member' => $user_info['id'],
  608. )
  609. );
  610. while ($row = $smcFunc['db_fetch_assoc']($request))
  611. $boards_mod[] = $row['id_board'];
  612. $smcFunc['db_free_result']($request);
  613. // Can any of the groups they're in moderate any of the boards?
  614. $request = $smcFunc['db_query']('', '
  615. SELECT id_board
  616. FROM {db_prefix}moderator_groups
  617. WHERE id_group IN({array_int:groups})',
  618. array(
  619. 'groups' => $user_info['groups'],
  620. )
  621. );
  622. while ($row = $smcFunc['db_fetch_assoc']($request))
  623. $boards_mod[] = $row['id_board'];
  624. $smcFunc['db_free_result']($request);
  625. // Just in case we've got duplicates here...
  626. $boards_mod = array_unique($boards_mod);
  627. }
  628. $mod_query = empty($boards_mod) ? '0=1' : 'b.id_board IN (' . implode(',', $boards_mod) . ')';
  629. $_SESSION['mc'] = array(
  630. 'time' => time(),
  631. // This looks a bit funny but protects against the login redirect.
  632. 'id' => $user_info['id'] && $user_info['name'] ? $user_info['id'] : 0,
  633. // If you change the format of 'gq' and/or 'bq' make sure to adjust 'can_mod' in Load.php.
  634. 'gq' => $group_query,
  635. 'bq' => $board_query,
  636. 'ap' => boardsAllowedTo('approve_posts'),
  637. 'mb' => $boards_mod,
  638. 'mq' => $mod_query,
  639. );
  640. call_integration_hook('integrate_mod_cache');
  641. $user_info['mod_cache'] = $_SESSION['mc'];
  642. // Might as well clean up some tokens while we are at it.
  643. cleanTokens();
  644. }
  645. /**
  646. * The same thing as setcookie but gives support for HTTP-Only cookies in PHP < 5.2
  647. *
  648. * @param string $name
  649. * @param string $value = ''
  650. * @param int $expire = 0
  651. * @param string $path = ''
  652. * @param string $domain = ''
  653. * @param bool $secure = false
  654. * @param bool $httponly = null
  655. */
  656. function smf_setcookie($name, $value = '', $expire = 0, $path = '', $domain = '', $secure = null, $httponly = null)
  657. {
  658. global $modSettings;
  659. // In case a customization wants to override the default settings
  660. if ($httponly === null)
  661. $httponly = !empty($modSettings['httponlyCookies']);
  662. if ($secure === null)
  663. $secure = !empty($modSettings['secureCookies']);
  664. // Intercept cookie?
  665. call_integration_hook('integrate_cookie', array($name, $value, $expire, $path, $domain, $secure, $httponly));
  666. // This function is pointless if we have PHP >= 5.2.
  667. if (version_compare(PHP_VERSION, '5.2', '>='))
  668. return setcookie($name, $value, $expire, $path, $domain, $secure, $httponly);
  669. // $httponly is the only reason I made this function. If it's not being used, use setcookie().
  670. if (!$httponly)
  671. return setcookie($name, $value, $expire, $path, $domain, $secure);
  672. // Ugh, looks like we have to resort to using a manual process.
  673. header('Set-Cookie: '.rawurlencode($name).'='.rawurlencode($value)
  674. .(empty($domain) ? '' : '; Domain='.$domain)
  675. .(empty($expire) ? '' : '; Max-Age='.$expire)
  676. .(empty($path) ? '' : '; Path='.$path)
  677. .(!$secure ? '' : '; Secure')
  678. .(!$httponly ? '' : '; HttpOnly'), false);
  679. }
  680. ?>