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/Sources/Search.php

https://github.com/smf-portal/SMF2.1
PHP | 2176 lines | 1689 code | 248 blank | 239 comment | 349 complexity | 27b3fd35386fce61e6dbfb1f51ac9f99 MD5 | raw file

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  1. <?php
  2. /**
  3. * Handle all of the searching from here.
  4. *
  5. * Simple Machines Forum (SMF)
  6. *
  7. * @package SMF
  8. * @author Simple Machines http://www.simplemachines.org
  9. * @copyright 2012 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. // This defines two version types for checking the API's are compatible with this version of SMF.
  17. $GLOBALS['search_versions'] = array(
  18. // This is the forum version but is repeated due to some people rewriting $forum_version.
  19. 'forum_version' => 'SMF 2.1 Alpha 1',
  20. // This is the minimum version of SMF that an API could have been written for to work. (strtr to stop accidentally updating version on release)
  21. 'search_version' => strtr('SMF 2+1=Alpha=1', array('+' => '.', '=' => ' ')),
  22. );
  23. /**
  24. * Ask the user what they want to search for.
  25. * What it does:
  26. * - shows the screen to search forum posts (action=search), and uses the simple version if the simpleSearch setting is enabled.
  27. * - uses the main sub template of the Search template.
  28. * - uses the Search language file.
  29. * - requires the search_posts permission.
  30. * - decodes and loads search parameters given in the URL (if any).
  31. * - the form redirects to index.php?action=search2.
  32. */
  33. function PlushSearch1()
  34. {
  35. global $txt, $scripturl, $modSettings, $user_info, $context, $smcFunc, $sourcedir;
  36. // Is the load average too high to allow searching just now?
  37. if (!empty($context['load_average']) && !empty($modSettings['loadavg_search']) && $context['load_average'] >= $modSettings['loadavg_search'])
  38. fatal_lang_error('loadavg_search_disabled', false);
  39. loadLanguage('Search');
  40. // Don't load this in XML mode.
  41. if (!isset($_REQUEST['xml']))
  42. loadTemplate('Search');
  43. // Check the user's permissions.
  44. isAllowedTo('search_posts');
  45. // Link tree....
  46. $context['linktree'][] = array(
  47. 'url' => $scripturl . '?action=search',
  48. 'name' => $txt['search']
  49. );
  50. // This is hard coded maximum string length.
  51. $context['search_string_limit'] = 100;
  52. $context['require_verification'] = $user_info['is_guest'] && !empty($modSettings['search_enable_captcha']) && empty($_SESSION['ss_vv_passed']);
  53. if ($context['require_verification'])
  54. {
  55. require_once($sourcedir . '/Subs-Editor.php');
  56. $verificationOptions = array(
  57. 'id' => 'search',
  58. );
  59. $context['require_verification'] = create_control_verification($verificationOptions);
  60. $context['visual_verification_id'] = $verificationOptions['id'];
  61. }
  62. // If you got back from search2 by using the linktree, you get your original search parameters back.
  63. if (isset($_REQUEST['params']))
  64. {
  65. // Due to IE's 2083 character limit, we have to compress long search strings
  66. $temp_params = base64_decode(str_replace(array('-', '_', '.'), array('+', '/', '='), $_REQUEST['params']));
  67. // Test for gzuncompress failing
  68. $temp_params2 = @gzuncompress($temp_params);
  69. $temp_params = explode('|"|', !empty($temp_params2) ? $temp_params2 : $temp_params);
  70. $context['search_params'] = array();
  71. foreach ($temp_params as $i => $data)
  72. {
  73. @list ($k, $v) = explode('|\'|', $data);
  74. $context['search_params'][$k] = $v;
  75. }
  76. if (isset($context['search_params']['brd']))
  77. $context['search_params']['brd'] = $context['search_params']['brd'] == '' ? array() : explode(',', $context['search_params']['brd']);
  78. }
  79. if (isset($_REQUEST['search']))
  80. $context['search_params']['search'] = un_htmlspecialchars($_REQUEST['search']);
  81. if (isset($context['search_params']['search']))
  82. $context['search_params']['search'] = $smcFunc['htmlspecialchars']($context['search_params']['search']);
  83. if (isset($context['search_params']['userspec']))
  84. $context['search_params']['userspec'] = htmlspecialchars($context['search_params']['userspec']);
  85. if (!empty($context['search_params']['searchtype']))
  86. $context['search_params']['searchtype'] = 2;
  87. if (!empty($context['search_params']['minage']))
  88. $context['search_params']['minage'] = (int) $context['search_params']['minage'];
  89. if (!empty($context['search_params']['maxage']))
  90. $context['search_params']['maxage'] = (int) $context['search_params']['maxage'];
  91. $context['search_params']['show_complete'] = !empty($context['search_params']['show_complete']);
  92. $context['search_params']['subject_only'] = !empty($context['search_params']['subject_only']);
  93. // Load the error text strings if there were errors in the search.
  94. if (!empty($context['search_errors']))
  95. {
  96. loadLanguage('Errors');
  97. $context['search_errors']['messages'] = array();
  98. foreach ($context['search_errors'] as $search_error => $dummy)
  99. {
  100. if ($search_error === 'messages')
  101. continue;
  102. if ($search_error == 'string_too_long')
  103. $txt['error_string_too_long'] = sprintf($txt['error_string_too_long'], $context['search_string_limit']);
  104. $context['search_errors']['messages'][] = $txt['error_' . $search_error];
  105. }
  106. }
  107. // Find all the boards this user is allowed to see.
  108. $request = $smcFunc['db_query']('order_by_board_order', '
  109. SELECT b.id_cat, c.name AS cat_name, b.id_board, b.name, b.child_level
  110. FROM {db_prefix}boards AS b
  111. LEFT JOIN {db_prefix}categories AS c ON (c.id_cat = b.id_cat)
  112. WHERE {query_see_board}
  113. AND redirect = {string:empty_string}',
  114. array(
  115. 'empty_string' => '',
  116. )
  117. );
  118. $context['num_boards'] = $smcFunc['db_num_rows']($request);
  119. $context['boards_check_all'] = true;
  120. $context['categories'] = array();
  121. while ($row = $smcFunc['db_fetch_assoc']($request))
  122. {
  123. // This category hasn't been set up yet..
  124. if (!isset($context['categories'][$row['id_cat']]))
  125. $context['categories'][$row['id_cat']] = array(
  126. 'id' => $row['id_cat'],
  127. 'name' => $row['cat_name'],
  128. 'boards' => array()
  129. );
  130. // Set this board up, and let the template know when it's a child. (indent them..)
  131. $context['categories'][$row['id_cat']]['boards'][$row['id_board']] = array(
  132. 'id' => $row['id_board'],
  133. 'name' => $row['name'],
  134. 'child_level' => $row['child_level'],
  135. 'selected' => (empty($context['search_params']['brd']) && (empty($modSettings['recycle_enable']) || $row['id_board'] != $modSettings['recycle_board']) && !in_array($row['id_board'], $user_info['ignoreboards'])) || (!empty($context['search_params']['brd']) && in_array($row['id_board'], $context['search_params']['brd']))
  136. );
  137. // If a board wasn't checked that probably should have been ensure the board selection is selected, yo!
  138. if (!$context['categories'][$row['id_cat']]['boards'][$row['id_board']]['selected'] && (empty($modSettings['recycle_enable']) || $row['id_board'] != $modSettings['recycle_board']))
  139. $context['boards_check_all'] = false;
  140. }
  141. $smcFunc['db_free_result']($request);
  142. // Now, let's sort the list of categories into the boards for templates that like that.
  143. $temp_boards = array();
  144. foreach ($context['categories'] as $category)
  145. {
  146. $temp_boards[] = array(
  147. 'name' => $category['name'],
  148. 'child_ids' => array_keys($category['boards'])
  149. );
  150. $temp_boards = array_merge($temp_boards, array_values($category['boards']));
  151. // Include a list of boards per category for easy toggling.
  152. $context['categories'][$category['id']]['child_ids'] = array_keys($category['boards']);
  153. }
  154. $max_boards = ceil(count($temp_boards) / 2);
  155. if ($max_boards == 1)
  156. $max_boards = 2;
  157. // Now, alternate them so they can be shown left and right ;).
  158. $context['board_columns'] = array();
  159. for ($i = 0; $i < $max_boards; $i++)
  160. {
  161. $context['board_columns'][] = $temp_boards[$i];
  162. if (isset($temp_boards[$i + $max_boards]))
  163. $context['board_columns'][] = $temp_boards[$i + $max_boards];
  164. else
  165. $context['board_columns'][] = array();
  166. }
  167. if (!empty($_REQUEST['topic']))
  168. {
  169. $context['search_params']['topic'] = (int) $_REQUEST['topic'];
  170. $context['search_params']['show_complete'] = true;
  171. }
  172. if (!empty($context['search_params']['topic']))
  173. {
  174. $context['search_params']['topic'] = (int) $context['search_params']['topic'];
  175. $context['search_topic'] = array(
  176. 'id' => $context['search_params']['topic'],
  177. 'href' => $scripturl . '?topic=' . $context['search_params']['topic'] . '.0',
  178. );
  179. $request = $smcFunc['db_query']('', '
  180. SELECT ms.subject
  181. FROM {db_prefix}topics AS t
  182. INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
  183. INNER JOIN {db_prefix}messages AS ms ON (ms.id_msg = t.id_first_msg)
  184. WHERE t.id_topic = {int:search_topic_id}
  185. AND {query_see_board}' . ($modSettings['postmod_active'] ? '
  186. AND t.approved = {int:is_approved_true}' : '') . '
  187. LIMIT 1',
  188. array(
  189. 'is_approved_true' => 1,
  190. 'search_topic_id' => $context['search_params']['topic'],
  191. )
  192. );
  193. if ($smcFunc['db_num_rows']($request) == 0)
  194. fatal_lang_error('topic_gone', false);
  195. list ($context['search_topic']['subject']) = $smcFunc['db_fetch_row']($request);
  196. $smcFunc['db_free_result']($request);
  197. $context['search_topic']['link'] = '<a href="' . $context['search_topic']['href'] . '">' . $context['search_topic']['subject'] . '</a>';
  198. }
  199. // Simple or not?
  200. $context['simple_search'] = isset($context['search_params']['advanced']) ? empty($context['search_params']['advanced']) : !empty($modSettings['simpleSearch']) && !isset($_REQUEST['advanced']);
  201. $context['page_title'] = $txt['set_parameters'];
  202. call_integration_hook('integrate_search');
  203. }
  204. /**
  205. * Gather the results and show them.
  206. * What it does:
  207. * - checks user input and searches the messages table for messages matching the query.
  208. * - requires the search_posts permission.
  209. * - uses the results sub template of the Search template.
  210. * - uses the Search language file.
  211. * - stores the results into the search cache.
  212. * - show the results of the search query.
  213. */
  214. function PlushSearch2()
  215. {
  216. global $scripturl, $modSettings, $sourcedir, $txt, $db_connection;
  217. global $user_info, $context, $options, $messages_request, $boards_can;
  218. global $excludedWords, $participants, $smcFunc;
  219. // if comming from the quick search box, and we want to search on members, well we need to do that ;)
  220. if (isset($_REQUEST['search_selection']) && $_REQUEST['search_selection'] === 'members')
  221. redirectexit($scripturl . '?action=mlist;sa=search;fields=name,email;search=' . urlencode($_REQUEST['search']));
  222. if (!empty($context['load_average']) && !empty($modSettings['loadavg_search']) && $context['load_average'] >= $modSettings['loadavg_search'])
  223. fatal_lang_error('loadavg_search_disabled', false);
  224. // No, no, no... this is a bit hard on the server, so don't you go prefetching it!
  225. if (isset($_SERVER['HTTP_X_MOZ']) && $_SERVER['HTTP_X_MOZ'] == 'prefetch')
  226. {
  227. ob_end_clean();
  228. header('HTTP/1.1 403 Forbidden');
  229. die;
  230. }
  231. $weight_factors = array(
  232. 'frequency' => array(
  233. 'search' => 'COUNT(*) / (MAX(t.num_replies) + 1)',
  234. 'results' => '(t.num_replies + 1)',
  235. ),
  236. 'age' => array(
  237. 'search' => 'CASE WHEN MAX(m.id_msg) < {int:min_msg} THEN 0 ELSE (MAX(m.id_msg) - {int:min_msg}) / {int:recent_message} END',
  238. 'results' => 'CASE WHEN t.id_first_msg < {int:min_msg} THEN 0 ELSE (t.id_first_msg - {int:min_msg}) / {int:recent_message} END',
  239. ),
  240. 'length' => array(
  241. 'search' => 'CASE WHEN MAX(t.num_replies) < {int:huge_topic_posts} THEN MAX(t.num_replies) / {int:huge_topic_posts} ELSE 1 END',
  242. 'results' => 'CASE WHEN t.num_replies < {int:huge_topic_posts} THEN t.num_replies / {int:huge_topic_posts} ELSE 1 END',
  243. ),
  244. 'subject' => array(
  245. 'search' => 0,
  246. 'results' => 0,
  247. ),
  248. 'first_message' => array(
  249. 'search' => 'CASE WHEN MIN(m.id_msg) = MAX(t.id_first_msg) THEN 1 ELSE 0 END',
  250. ),
  251. 'sticky' => array(
  252. 'search' => 'MAX(t.is_sticky)',
  253. 'results' => 't.is_sticky',
  254. ),
  255. );
  256. call_integration_hook('integrate_search_weights', array($weight_factors));
  257. $weight = array();
  258. $weight_total = 0;
  259. foreach ($weight_factors as $weight_factor => $value)
  260. {
  261. $weight[$weight_factor] = empty($modSettings['search_weight_' . $weight_factor]) ? 0 : (int) $modSettings['search_weight_' . $weight_factor];
  262. $weight_total += $weight[$weight_factor];
  263. }
  264. // Zero weight. Weightless :P.
  265. if (empty($weight_total))
  266. fatal_lang_error('search_invalid_weights');
  267. // These vars don't require an interface, they're just here for tweaking.
  268. $recentPercentage = 0.30;
  269. $humungousTopicPosts = 200;
  270. $maxMembersToSearch = 500;
  271. $maxMessageResults = empty($modSettings['search_max_results']) ? 0 : $modSettings['search_max_results'] * 5;
  272. // Start with no errors.
  273. $context['search_errors'] = array();
  274. // Number of pages hard maximum - normally not set at all.
  275. $modSettings['search_max_results'] = empty($modSettings['search_max_results']) ? 200 * $modSettings['search_results_per_page'] : (int) $modSettings['search_max_results'];
  276. // Maximum length of the string.
  277. $context['search_string_limit'] = 100;
  278. loadLanguage('Search');
  279. if (!isset($_REQUEST['xml']))
  280. loadTemplate('Search');
  281. //If we're doing XML we need to use the results template regardless really.
  282. else
  283. $context['sub_template'] = 'results';
  284. // Are you allowed?
  285. isAllowedTo('search_posts');
  286. require_once($sourcedir . '/Display.php');
  287. require_once($sourcedir . '/Subs-Package.php');
  288. // Search has a special database set.
  289. db_extend('search');
  290. // Load up the search API we are going to use.
  291. $searchAPI = findSearchAPI();
  292. // $search_params will carry all settings that differ from the default search parameters.
  293. // That way, the URLs involved in a search page will be kept as short as possible.
  294. $search_params = array();
  295. if (isset($_REQUEST['params']))
  296. {
  297. // Due to IE's 2083 character limit, we have to compress long search strings
  298. $temp_params = base64_decode(str_replace(array('-', '_', '.'), array('+', '/', '='), $_REQUEST['params']));
  299. // Test for gzuncompress failing
  300. $temp_params2 = @gzuncompress($temp_params);
  301. $temp_params = explode('|"|', (!empty($temp_params2) ? $temp_params2 : $temp_params));
  302. foreach ($temp_params as $i => $data)
  303. {
  304. @list($k, $v) = explode('|\'|', $data);
  305. $search_params[$k] = $v;
  306. }
  307. if (isset($search_params['brd']))
  308. $search_params['brd'] = empty($search_params['brd']) ? array() : explode(',', $search_params['brd']);
  309. }
  310. // Store whether simple search was used (needed if the user wants to do another query).
  311. if (!isset($search_params['advanced']))
  312. $search_params['advanced'] = empty($_REQUEST['advanced']) ? 0 : 1;
  313. // 1 => 'allwords' (default, don't set as param) / 2 => 'anywords'.
  314. if (!empty($search_params['searchtype']) || (!empty($_REQUEST['searchtype']) && $_REQUEST['searchtype'] == 2))
  315. $search_params['searchtype'] = 2;
  316. // Minimum age of messages. Default to zero (don't set param in that case).
  317. if (!empty($search_params['minage']) || (!empty($_REQUEST['minage']) && $_REQUEST['minage'] > 0))
  318. $search_params['minage'] = !empty($search_params['minage']) ? (int) $search_params['minage'] : (int) $_REQUEST['minage'];
  319. // Maximum age of messages. Default to infinite (9999 days: param not set).
  320. if (!empty($search_params['maxage']) || (!empty($_REQUEST['maxage']) && $_REQUEST['maxage'] < 9999))
  321. $search_params['maxage'] = !empty($search_params['maxage']) ? (int) $search_params['maxage'] : (int) $_REQUEST['maxage'];
  322. // Searching a specific topic?
  323. if (!empty($_REQUEST['topic']) || (!empty($_REQUEST['search_selection']) && $_REQUEST['search_selection'] == 'topic'))
  324. {
  325. $search_params['topic'] = empty($_REQUEST['search_selection']) ? (int) $_REQUEST['topic'] : (isset($_REQUEST['sd_topic']) ? (int) $_REQUEST['sd_topic'] : '');
  326. $search_params['show_complete'] = true;
  327. }
  328. elseif (!empty($search_params['topic']))
  329. $search_params['topic'] = (int) $search_params['topic'];
  330. if (!empty($search_params['minage']) || !empty($search_params['maxage']))
  331. {
  332. $request = $smcFunc['db_query']('', '
  333. SELECT ' . (empty($search_params['maxage']) ? '0, ' : 'IFNULL(MIN(id_msg), -1), ') . (empty($search_params['minage']) ? '0' : 'IFNULL(MAX(id_msg), -1)') . '
  334. FROM {db_prefix}messages
  335. WHERE 1=1' . ($modSettings['postmod_active'] ? '
  336. AND approved = {int:is_approved_true}' : '') . (empty($search_params['minage']) ? '' : '
  337. AND poster_time <= {int:timestamp_minimum_age}') . (empty($search_params['maxage']) ? '' : '
  338. AND poster_time >= {int:timestamp_maximum_age}'),
  339. array(
  340. 'timestamp_minimum_age' => empty($search_params['minage']) ? 0 : time() - 86400 * $search_params['minage'],
  341. 'timestamp_maximum_age' => empty($search_params['maxage']) ? 0 : time() - 86400 * $search_params['maxage'],
  342. 'is_approved_true' => 1,
  343. )
  344. );
  345. list ($minMsgID, $maxMsgID) = $smcFunc['db_fetch_row']($request);
  346. if ($minMsgID < 0 || $maxMsgID < 0)
  347. $context['search_errors']['no_messages_in_time_frame'] = true;
  348. $smcFunc['db_free_result']($request);
  349. }
  350. // Default the user name to a wildcard matching every user (*).
  351. if (!empty($search_params['userspec']) || (!empty($_REQUEST['userspec']) && $_REQUEST['userspec'] != '*'))
  352. $search_params['userspec'] = isset($search_params['userspec']) ? $search_params['userspec'] : $_REQUEST['userspec'];
  353. // If there's no specific user, then don't mention it in the main query.
  354. if (empty($search_params['userspec']))
  355. $userQuery = '';
  356. else
  357. {
  358. $userString = strtr($smcFunc['htmlspecialchars']($search_params['userspec'], ENT_QUOTES), array('&quot;' => '"'));
  359. $userString = strtr($userString, array('%' => '\%', '_' => '\_', '*' => '%', '?' => '_'));
  360. preg_match_all('~"([^"]+)"~', $userString, $matches);
  361. $possible_users = array_merge($matches[1], explode(',', preg_replace('~"[^"]+"~', '', $userString)));
  362. for ($k = 0, $n = count($possible_users); $k < $n; $k++)
  363. {
  364. $possible_users[$k] = trim($possible_users[$k]);
  365. if (strlen($possible_users[$k]) == 0)
  366. unset($possible_users[$k]);
  367. }
  368. // Create a list of database-escaped search names.
  369. $realNameMatches = array();
  370. foreach ($possible_users as $possible_user)
  371. $realNameMatches[] = $smcFunc['db_quote'](
  372. '{string:possible_user}',
  373. array(
  374. 'possible_user' => $possible_user
  375. )
  376. );
  377. // Retrieve a list of possible members.
  378. $request = $smcFunc['db_query']('', '
  379. SELECT id_member
  380. FROM {db_prefix}members
  381. WHERE {raw:match_possible_users}',
  382. array(
  383. 'match_possible_users' => 'real_name LIKE ' . implode(' OR real_name LIKE ', $realNameMatches),
  384. )
  385. );
  386. // Simply do nothing if there're too many members matching the criteria.
  387. if ($smcFunc['db_num_rows']($request) > $maxMembersToSearch)
  388. $userQuery = '';
  389. elseif ($smcFunc['db_num_rows']($request) == 0)
  390. {
  391. $userQuery = $smcFunc['db_quote'](
  392. 'm.id_member = {int:id_member_guest} AND ({raw:match_possible_guest_names})',
  393. array(
  394. 'id_member_guest' => 0,
  395. 'match_possible_guest_names' => 'm.poster_name LIKE ' . implode(' OR m.poster_name LIKE ', $realNameMatches),
  396. )
  397. );
  398. }
  399. else
  400. {
  401. $memberlist = array();
  402. while ($row = $smcFunc['db_fetch_assoc']($request))
  403. $memberlist[] = $row['id_member'];
  404. $userQuery = $smcFunc['db_quote'](
  405. '(m.id_member IN ({array_int:matched_members}) OR (m.id_member = {int:id_member_guest} AND ({raw:match_possible_guest_names})))',
  406. array(
  407. 'matched_members' => $memberlist,
  408. 'id_member_guest' => 0,
  409. 'match_possible_guest_names' => 'm.poster_name LIKE ' . implode(' OR m.poster_name LIKE ', $realNameMatches),
  410. )
  411. );
  412. }
  413. $smcFunc['db_free_result']($request);
  414. }
  415. // If the boards were passed by URL (params=), temporarily put them back in $_REQUEST.
  416. if (!empty($search_params['brd']) && is_array($search_params['brd']))
  417. $_REQUEST['brd'] = $search_params['brd'];
  418. // Ensure that brd is an array.
  419. if ((!empty($_REQUEST['brd']) && !is_array($_REQUEST['brd'])) || (!empty($_REQUEST['search_selection']) && $_REQUEST['search_selection'] == 'board'))
  420. {
  421. if (!empty($_REQUEST['brd']))
  422. $_REQUEST['brd'] = strpos($_REQUEST['brd'], ',') !== false ? explode(',', $_REQUEST['brd']) : array($_REQUEST['brd']);
  423. else
  424. $_REQUEST['brd'] = isset($_REQUEST['sd_brd']) ? array($_REQUEST['sd_brd']) : array();
  425. }
  426. // Make sure all boards are integers.
  427. if (!empty($_REQUEST['brd']))
  428. foreach ($_REQUEST['brd'] as $id => $brd)
  429. $_REQUEST['brd'][$id] = (int) $brd;
  430. // Special case for boards: searching just one topic?
  431. if (!empty($search_params['topic']))
  432. {
  433. $request = $smcFunc['db_query']('', '
  434. SELECT b.id_board
  435. FROM {db_prefix}topics AS t
  436. INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
  437. WHERE t.id_topic = {int:search_topic_id}
  438. AND {query_see_board}' . ($modSettings['postmod_active'] ? '
  439. AND t.approved = {int:is_approved_true}' : '') . '
  440. LIMIT 1',
  441. array(
  442. 'search_topic_id' => $search_params['topic'],
  443. 'is_approved_true' => 1,
  444. )
  445. );
  446. if ($smcFunc['db_num_rows']($request) == 0)
  447. fatal_lang_error('topic_gone', false);
  448. $search_params['brd'] = array();
  449. list ($search_params['brd'][0]) = $smcFunc['db_fetch_row']($request);
  450. $smcFunc['db_free_result']($request);
  451. }
  452. // Select all boards you've selected AND are allowed to see.
  453. elseif ($user_info['is_admin'] && (!empty($search_params['advanced']) || !empty($_REQUEST['brd'])))
  454. $search_params['brd'] = empty($_REQUEST['brd']) ? array() : $_REQUEST['brd'];
  455. else
  456. {
  457. $see_board = empty($search_params['advanced']) ? 'query_wanna_see_board' : 'query_see_board';
  458. $request = $smcFunc['db_query']('', '
  459. SELECT b.id_board
  460. FROM {db_prefix}boards AS b
  461. WHERE {raw:boards_allowed_to_see}
  462. AND redirect = {string:empty_string}' . (empty($_REQUEST['brd']) ? (!empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0 ? '
  463. AND b.id_board != {int:recycle_board_id}' : '') : '
  464. AND b.id_board IN ({array_int:selected_search_boards})'),
  465. array(
  466. 'boards_allowed_to_see' => $user_info[$see_board],
  467. 'empty_string' => '',
  468. 'selected_search_boards' => empty($_REQUEST['brd']) ? array() : $_REQUEST['brd'],
  469. 'recycle_board_id' => $modSettings['recycle_board'],
  470. )
  471. );
  472. $search_params['brd'] = array();
  473. while ($row = $smcFunc['db_fetch_assoc']($request))
  474. $search_params['brd'][] = $row['id_board'];
  475. $smcFunc['db_free_result']($request);
  476. // This error should pro'bly only happen for hackers.
  477. if (empty($search_params['brd']))
  478. $context['search_errors']['no_boards_selected'] = true;
  479. }
  480. if (count($search_params['brd']) != 0)
  481. {
  482. foreach ($search_params['brd'] as $k => $v)
  483. $search_params['brd'][$k] = (int) $v;
  484. // If we've selected all boards, this parameter can be left empty.
  485. $request = $smcFunc['db_query']('', '
  486. SELECT COUNT(*)
  487. FROM {db_prefix}boards
  488. WHERE redirect = {string:empty_string}',
  489. array(
  490. 'empty_string' => '',
  491. )
  492. );
  493. list ($num_boards) = $smcFunc['db_fetch_row']($request);
  494. $smcFunc['db_free_result']($request);
  495. if (count($search_params['brd']) == $num_boards)
  496. $boardQuery = '';
  497. elseif (count($search_params['brd']) == $num_boards - 1 && !empty($modSettings['recycle_board']) && !in_array($modSettings['recycle_board'], $search_params['brd']))
  498. $boardQuery = '!= ' . $modSettings['recycle_board'];
  499. else
  500. $boardQuery = 'IN (' . implode(', ', $search_params['brd']) . ')';
  501. }
  502. else
  503. $boardQuery = '';
  504. $search_params['show_complete'] = !empty($search_params['show_complete']) || !empty($_REQUEST['show_complete']);
  505. $search_params['subject_only'] = !empty($search_params['subject_only']) || !empty($_REQUEST['subject_only']);
  506. $context['compact'] = !$search_params['show_complete'];
  507. // Get the sorting parameters right. Default to sort by relevance descending.
  508. $sort_columns = array(
  509. 'relevance',
  510. 'num_replies',
  511. 'id_msg',
  512. );
  513. call_integration_hook('integrate_search_sort_columns', array($sort_columns));
  514. if (empty($search_params['sort']) && !empty($_REQUEST['sort']))
  515. list ($search_params['sort'], $search_params['sort_dir']) = array_pad(explode('|', $_REQUEST['sort']), 2, '');
  516. $search_params['sort'] = !empty($search_params['sort']) && in_array($search_params['sort'], $sort_columns) ? $search_params['sort'] : 'relevance';
  517. if (!empty($search_params['topic']) && $search_params['sort'] === 'num_replies')
  518. $search_params['sort'] = 'id_msg';
  519. // Sorting direction: descending unless stated otherwise.
  520. $search_params['sort_dir'] = !empty($search_params['sort_dir']) && $search_params['sort_dir'] == 'asc' ? 'asc' : 'desc';
  521. // Determine some values needed to calculate the relevance.
  522. $minMsg = (int) ((1 - $recentPercentage) * $modSettings['maxMsgID']);
  523. $recentMsg = $modSettings['maxMsgID'] - $minMsg;
  524. // *** Parse the search query
  525. call_integration_hook('integrate_search_params', array($search_params));
  526. /*
  527. * Unfortunately, searching for words like this is going to be slow, so we're blacklisting them.
  528. *
  529. * @todo Setting to add more here?
  530. * @todo Maybe only blacklist if they are the only word, or "any" is used?
  531. */
  532. $blacklisted_words = array('img', 'url', 'quote', 'www', 'http', 'the', 'is', 'it', 'are', 'if');
  533. call_integration_hook('integrate_search_blacklisted_words', array($blacklisted_words));
  534. // What are we searching for?
  535. if (empty($search_params['search']))
  536. {
  537. if (isset($_GET['search']))
  538. $search_params['search'] = un_htmlspecialchars($_GET['search']);
  539. elseif (isset($_POST['search']))
  540. $search_params['search'] = $_POST['search'];
  541. else
  542. $search_params['search'] = '';
  543. }
  544. // Nothing??
  545. if (!isset($search_params['search']) || $search_params['search'] == '')
  546. $context['search_errors']['invalid_search_string'] = true;
  547. // Too long?
  548. elseif ($smcFunc['strlen']($search_params['search']) > $context['search_string_limit'])
  549. {
  550. $context['search_errors']['string_too_long'] = true;
  551. }
  552. // Change non-word characters into spaces.
  553. $stripped_query = preg_replace('~(?:[\x0B\0' . ($context['utf8'] ? '\x{A0}' : '\xA0') . '\t\r\s\n(){}\\[\\]<>!@$%^*.,:+=`\~\?/\\\\]+|&(?:amp|lt|gt|quot);)+~' . ($context['utf8'] ? 'u' : ''), ' ', $search_params['search']);
  554. // Make the query lower case. It's gonna be case insensitive anyway.
  555. $stripped_query = un_htmlspecialchars($smcFunc['strtolower']($stripped_query));
  556. // This (hidden) setting will do fulltext searching in the most basic way.
  557. if (!empty($modSettings['search_simple_fulltext']))
  558. $stripped_query = strtr($stripped_query, array('"' => ''));
  559. $no_regexp = preg_match('~&#(?:\d{1,7}|x[0-9a-fA-F]{1,6});~', $stripped_query) === 1;
  560. // Extract phrase parts first (e.g. some words "this is a phrase" some more words.)
  561. preg_match_all('/(?:^|\s)([-]?)"([^"]+)"(?:$|\s)/', $stripped_query, $matches, PREG_PATTERN_ORDER);
  562. $phraseArray = $matches[2];
  563. // Remove the phrase parts and extract the words.
  564. $wordArray = preg_replace('~(?:^|\s)(?:[-]?)"(?:[^"]+)"(?:$|\s)~' . ($context['utf8'] ? 'u' : ''), ' ', $search_params['search']);
  565. $wordArray = explode(' ', $smcFunc['htmlspecialchars'](un_htmlspecialchars($wordArray), ENT_QUOTES));
  566. // A minus sign in front of a word excludes the word.... so...
  567. $excludedWords = array();
  568. $excludedIndexWords = array();
  569. $excludedSubjectWords = array();
  570. $excludedPhrases = array();
  571. // .. first, we check for things like -"some words", but not "-some words".
  572. foreach ($matches[1] as $index => $word)
  573. {
  574. if ($word === '-')
  575. {
  576. if (($word = trim($phraseArray[$index], '-_\' ')) !== '' && !in_array($word, $blacklisted_words))
  577. $excludedWords[] = $word;
  578. unset($phraseArray[$index]);
  579. }
  580. }
  581. // Now we look for -test, etc.... normaller.
  582. foreach ($wordArray as $index => $word)
  583. {
  584. if (strpos(trim($word), '-') === 0)
  585. {
  586. if (($word = trim($word, '-_\' ')) !== '' && !in_array($word, $blacklisted_words))
  587. $excludedWords[] = $word;
  588. unset($wordArray[$index]);
  589. }
  590. }
  591. // The remaining words and phrases are all included.
  592. $searchArray = array_merge($phraseArray, $wordArray);
  593. // Trim everything and make sure there are no words that are the same.
  594. foreach ($searchArray as $index => $value)
  595. {
  596. // Skip anything practically empty.
  597. if (($searchArray[$index] = trim($value, '-_\' ')) === '')
  598. unset($searchArray[$index]);
  599. // Skip blacklisted words. Make sure to note we skipped them in case we end up with nothing.
  600. elseif (in_array($searchArray[$index], $blacklisted_words))
  601. {
  602. $foundBlackListedWords = true;
  603. unset($searchArray[$index]);
  604. }
  605. // Don't allow very, very short words.
  606. elseif ($smcFunc['strlen']($value) < 2)
  607. {
  608. $context['search_errors']['search_string_small_words'] = true;
  609. unset($searchArray[$index]);
  610. }
  611. else
  612. $searchArray[$index] = $searchArray[$index];
  613. }
  614. $searchArray = array_slice(array_unique($searchArray), 0, 10);
  615. // Create an array of replacements for highlighting.
  616. $context['mark'] = array();
  617. foreach ($searchArray as $word)
  618. $context['mark'][$word] = '<strong class="highlight">' . $word . '</strong>';
  619. // Initialize two arrays storing the words that have to be searched for.
  620. $orParts = array();
  621. $searchWords = array();
  622. // Make sure at least one word is being searched for.
  623. if (empty($searchArray))
  624. $context['search_errors']['invalid_search_string' . (!empty($foundBlackListedWords) ? '_blacklist' : '')] = true;
  625. // All words/sentences must match.
  626. elseif (empty($search_params['searchtype']))
  627. $orParts[0] = $searchArray;
  628. // Any word/sentence must match.
  629. else
  630. foreach ($searchArray as $index => $value)
  631. $orParts[$index] = array($value);
  632. // Don't allow duplicate error messages if one string is too short.
  633. if (isset($context['search_errors']['search_string_small_words'], $context['search_errors']['invalid_search_string']))
  634. unset($context['search_errors']['invalid_search_string']);
  635. // Make sure the excluded words are in all or-branches.
  636. foreach ($orParts as $orIndex => $andParts)
  637. foreach ($excludedWords as $word)
  638. $orParts[$orIndex][] = $word;
  639. // Determine the or-branches and the fulltext search words.
  640. foreach ($orParts as $orIndex => $andParts)
  641. {
  642. $searchWords[$orIndex] = array(
  643. 'indexed_words' => array(),
  644. 'words' => array(),
  645. 'subject_words' => array(),
  646. 'all_words' => array(),
  647. 'complex_words' => array(),
  648. );
  649. // Sort the indexed words (large words -> small words -> excluded words).
  650. if ($searchAPI->supportsMethod('searchSort'))
  651. usort($orParts[$orIndex], 'searchSort');
  652. foreach ($orParts[$orIndex] as $word)
  653. {
  654. $is_excluded = in_array($word, $excludedWords);
  655. $searchWords[$orIndex]['all_words'][] = $word;
  656. $subjectWords = text2words($word);
  657. if (!$is_excluded || count($subjectWords) === 1)
  658. {
  659. $searchWords[$orIndex]['subject_words'] = array_merge($searchWords[$orIndex]['subject_words'], $subjectWords);
  660. if ($is_excluded)
  661. $excludedSubjectWords = array_merge($excludedSubjectWords, $subjectWords);
  662. }
  663. else
  664. $excludedPhrases[] = $word;
  665. // Have we got indexes to prepare?
  666. if ($searchAPI->supportsMethod('prepareIndexes'))
  667. $searchAPI->prepareIndexes($word, $searchWords[$orIndex], $excludedIndexWords, $is_excluded);
  668. }
  669. // Search_force_index requires all AND parts to have at least one fulltext word.
  670. if (!empty($modSettings['search_force_index']) && empty($searchWords[$orIndex]['indexed_words']))
  671. {
  672. $context['search_errors']['query_not_specific_enough'] = true;
  673. break;
  674. }
  675. elseif ($search_params['subject_only'] && empty($searchWords[$orIndex]['subject_words']) && empty($excludedSubjectWords))
  676. {
  677. $context['search_errors']['query_not_specific_enough'] = true;
  678. break;
  679. }
  680. // Make sure we aren't searching for too many indexed words.
  681. else
  682. {
  683. $searchWords[$orIndex]['indexed_words'] = array_slice($searchWords[$orIndex]['indexed_words'], 0, 7);
  684. $searchWords[$orIndex]['subject_words'] = array_slice($searchWords[$orIndex]['subject_words'], 0, 7);
  685. $searchWords[$orIndex]['words'] = array_slice($searchWords[$orIndex]['words'], 0, 4);
  686. }
  687. }
  688. // *** Spell checking
  689. $context['show_spellchecking'] = !empty($modSettings['enableSpellChecking']) && function_exists('pspell_new');
  690. if ($context['show_spellchecking'])
  691. {
  692. // Windows fix.
  693. ob_start();
  694. $old = error_reporting(0);
  695. pspell_new('en');
  696. $pspell_link = pspell_new($txt['lang_dictionary'], $txt['lang_spelling'], '', strtr($txt['lang_character_set'], array('iso-' => 'iso', 'ISO-' => 'iso')), PSPELL_FAST | PSPELL_RUN_TOGETHER);
  697. if (!$pspell_link)
  698. $pspell_link = pspell_new('en', '', '', '', PSPELL_FAST | PSPELL_RUN_TOGETHER);
  699. error_reporting($old);
  700. ob_end_clean();
  701. $did_you_mean = array('search' => array(), 'display' => array());
  702. $found_misspelling = false;
  703. foreach ($searchArray as $word)
  704. {
  705. if (empty($pspell_link))
  706. continue;
  707. // Don't check phrases.
  708. if (preg_match('~^\w+$~', $word) === 0)
  709. {
  710. $did_you_mean['search'][] = '"' . $word . '"';
  711. $did_you_mean['display'][] = '&quot;' . $smcFunc['htmlspecialchars']($word) . '&quot;';
  712. continue;
  713. }
  714. // For some strange reason spell check can crash PHP on decimals.
  715. elseif (preg_match('~\d~', $word) === 1)
  716. {
  717. $did_you_mean['search'][] = $word;
  718. $did_you_mean['display'][] = $smcFunc['htmlspecialchars']($word);
  719. continue;
  720. }
  721. elseif (pspell_check($pspell_link, $word))
  722. {
  723. $did_you_mean['search'][] = $word;
  724. $did_you_mean['display'][] = $smcFunc['htmlspecialchars']($word);
  725. continue;
  726. }
  727. $suggestions = pspell_suggest($pspell_link, $word);
  728. foreach ($suggestions as $i => $s)
  729. {
  730. // Search is case insensitive.
  731. if ($smcFunc['strtolower']($s) == $smcFunc['strtolower']($word))
  732. unset($suggestions[$i]);
  733. // Plus, don't suggest something the user thinks is rude!
  734. elseif ($suggestions[$i] != censorText($s))
  735. unset($suggestions[$i]);
  736. }
  737. // Anything found? If so, correct it!
  738. if (!empty($suggestions))
  739. {
  740. $suggestions = array_values($suggestions);
  741. $did_you_mean['search'][] = $suggestions[0];
  742. $did_you_mean['display'][] = '<em><strong>' . $smcFunc['htmlspecialchars']($suggestions[0]) . '</strong></em>';
  743. $found_misspelling = true;
  744. }
  745. else
  746. {
  747. $did_you_mean['search'][] = $word;
  748. $did_you_mean['display'][] = $smcFunc['htmlspecialchars']($word);
  749. }
  750. }
  751. if ($found_misspelling)
  752. {
  753. // Don't spell check excluded words, but add them still...
  754. $temp_excluded = array('search' => array(), 'display' => array());
  755. foreach ($excludedWords as $word)
  756. {
  757. if (preg_match('~^\w+$~', $word) == 0)
  758. {
  759. $temp_excluded['search'][] = '-"' . $word . '"';
  760. $temp_excluded['display'][] = '-&quot;' . $smcFunc['htmlspecialchars']($word) . '&quot;';
  761. }
  762. else
  763. {
  764. $temp_excluded['search'][] = '-' . $word;
  765. $temp_excluded['display'][] = '-' . $smcFunc['htmlspecialchars']($word);
  766. }
  767. }
  768. $did_you_mean['search'] = array_merge($did_you_mean['search'], $temp_excluded['search']);
  769. $did_you_mean['display'] = array_merge($did_you_mean['display'], $temp_excluded['display']);
  770. $temp_params = $search_params;
  771. $temp_params['search'] = implode(' ', $did_you_mean['search']);
  772. if (isset($temp_params['brd']))
  773. $temp_params['brd'] = implode(',', $temp_params['brd']);
  774. $context['params'] = array();
  775. foreach ($temp_params as $k => $v)
  776. $context['did_you_mean_params'][] = $k . '|\'|' . $v;
  777. $context['did_you_mean_params'] = base64_encode(implode('|"|', $context['did_you_mean_params']));
  778. $context['did_you_mean'] = implode(' ', $did_you_mean['display']);
  779. }
  780. }
  781. // Let the user adjust the search query, should they wish?
  782. $context['search_params'] = $search_params;
  783. if (isset($context['search_params']['search']))
  784. $context['search_params']['search'] = $smcFunc['htmlspecialchars']($context['search_params']['search']);
  785. if (isset($context['search_params']['userspec']))
  786. $context['search_params']['userspec'] = $smcFunc['htmlspecialchars']($context['search_params']['userspec']);
  787. // Do we have captcha enabled?
  788. if ($user_info['is_guest'] && !empty($modSettings['search_enable_captcha']) && empty($_SESSION['ss_vv_passed']) && (empty($_SESSION['last_ss']) || $_SESSION['last_ss'] != $search_params['search']))
  789. {
  790. // If we come from another search box tone down the error...
  791. if (!isset($_REQUEST['search_vv']))
  792. $context['search_errors']['need_verification_code'] = true;
  793. else
  794. {
  795. require_once($sourcedir . '/Subs-Editor.php');
  796. $verificationOptions = array(
  797. 'id' => 'search',
  798. );
  799. $context['require_verification'] = create_control_verification($verificationOptions, true);
  800. if (is_array($context['require_verification']))
  801. {
  802. foreach ($context['require_verification'] as $error)
  803. $context['search_errors'][$error] = true;
  804. }
  805. // Don't keep asking for it - they've proven themselves worthy.
  806. else
  807. $_SESSION['ss_vv_passed'] = true;
  808. }
  809. }
  810. // *** Encode all search params
  811. // All search params have been checked, let's compile them to a single string... made less simple by PHP 4.3.9 and below.
  812. $temp_params = $search_params;
  813. if (isset($temp_params['brd']))
  814. $temp_params['brd'] = implode(',', $temp_params['brd']);
  815. $context['params'] = array();
  816. foreach ($temp_params as $k => $v)
  817. $context['params'][] = $k . '|\'|' . $v;
  818. if (!empty($context['params']))
  819. {
  820. // Due to old IE's 2083 character limit, we have to compress long search strings
  821. $params = @gzcompress(implode('|"|', $context['params']));
  822. // Gzcompress failed, use try non-gz
  823. if (empty($params))
  824. $params = implode('|"|', $context['params']);
  825. // Base64 encode, then replace +/= with uri safe ones that can be reverted
  826. $context['params'] = str_replace(array('+', '/', '='), array('-', '_', '.'), base64_encode($params));
  827. }
  828. // ... and add the links to the link tree.
  829. $context['linktree'][] = array(
  830. 'url' => $scripturl . '?action=search;params=' . $context['params'],
  831. 'name' => $txt['search']
  832. );
  833. $context['linktree'][] = array(
  834. 'url' => $scripturl . '?action=search2;params=' . $context['params'],
  835. 'name' => $txt['search_results']
  836. );
  837. // *** A last error check
  838. call_integration_hook('integrate_search_errors');
  839. // One or more search errors? Go back to the first search screen.
  840. if (!empty($context['search_errors']))
  841. {
  842. $_REQUEST['params'] = $context['params'];
  843. return PlushSearch1();
  844. }
  845. // Spam me not, Spam-a-lot?
  846. if (empty($_SESSION['last_ss']) || $_SESSION['last_ss'] != $search_params['search'])
  847. spamProtection('search');
  848. // Store the last search string to allow pages of results to be browsed.
  849. $_SESSION['last_ss'] = $search_params['search'];
  850. // *** Reserve an ID for caching the search results.
  851. $query_params = array_merge($search_params, array(
  852. 'min_msg_id' => isset($minMsgID) ? (int) $minMsgID : 0,
  853. 'max_msg_id' => isset($maxMsgID) ? (int) $maxMsgID : 0,
  854. 'memberlist' => !empty($memberlist) ? $memberlist : array(),
  855. ));
  856. // Can this search rely on the API given the parameters?
  857. if ($searchAPI->supportsMethod('searchQuery', $query_params))
  858. {
  859. $participants = array();
  860. $searchArray = array();
  861. $num_results = $searchAPI->searchQuery($query_params, $searchWords, $excludedIndexWords, $participants, $searchArray);
  862. }
  863. // Update the cache if the current search term is not yet cached.
  864. else
  865. {
  866. $update_cache = empty($_SESSION['search_cache']) || ($_SESSION['search_cache']['params'] != $context['params']);
  867. if ($update_cache)
  868. {
  869. // Increase the pointer...
  870. $modSettings['search_pointer'] = empty($modSettings['search_pointer']) ? 0 : (int) $modSettings['search_pointer'];
  871. // ...and store it right off.
  872. updateSettings(array('search_pointer' => $modSettings['search_pointer'] >= 255 ? 0 : $modSettings['search_pointer'] + 1));
  873. // As long as you don't change the parameters, the cache result is yours.
  874. $_SESSION['search_cache'] = array(
  875. 'id_search' => $modSettings['search_pointer'],
  876. 'num_results' => -1,
  877. 'params' => $context['params'],
  878. );
  879. // Clear the previous cache of the final results cache.
  880. $smcFunc['db_search_query']('delete_log_search_results', '
  881. DELETE FROM {db_prefix}log_search_results
  882. WHERE id_search = {int:search_id}',
  883. array(
  884. 'search_id' => $_SESSION['search_cache']['id_search'],
  885. )
  886. );
  887. if ($search_params['subject_only'])
  888. {
  889. // We do this to try and avoid duplicate keys on databases not supporting INSERT IGNORE.
  890. $inserts = array();
  891. foreach ($searchWords as $orIndex => $words)
  892. {
  893. $subject_query_params = array();
  894. $subject_query = array(
  895. 'from' => '{db_prefix}topics AS t',
  896. 'inner_join' => array(),
  897. 'left_join' => array(),
  898. 'where' => array(),
  899. );
  900. if ($modSettings['postmod_active'])
  901. $subject_query['where'][] = 't.approved = {int:is_approved}';
  902. $numTables = 0;
  903. $prev_join = 0;
  904. $numSubjectResults = 0;
  905. foreach ($words['subject_words'] as $subjectWord)
  906. {
  907. $numTables++;
  908. if (in_array($subjectWord, $excludedSubjectWords))
  909. {
  910. $subject_query['left_join'][] = '{db_prefix}log_search_subjects AS subj' . $numTables . ' ON (subj' . $numTables . '.word ' . (empty($modSettings['search_match_words']) ? 'LIKE {string:subject_words_' . $numTables . '_wild}' : '= {string:subject_words_' . $numTables . '}') . ' AND subj' . $numTables . '.id_topic = t.id_topic)';
  911. $subject_query['where'][] = '(subj' . $numTables . '.word IS NULL)';
  912. }
  913. else
  914. {
  915. $subject_query['inner_join'][] = '{db_prefix}log_search_subjects AS subj' . $numTables . ' ON (subj' . $numTables . '.id_topic = ' . ($prev_join === 0 ? 't' : 'subj' . $prev_join) . '.id_topic)';
  916. $subject_query['where'][] = 'subj' . $numTables . '.word ' . (empty($modSettings['search_match_words']) ? 'LIKE {string:subject_words_' . $numTables . '_wild}' : '= {string:subject_words_' . $numTables . '}');
  917. $prev_join = $numTables;
  918. }
  919. $subject_query_params['subject_words_' . $numTables] = $subjectWord;
  920. $subject_query_params['subject_words_' . $numTables . '_wild'] = '%' . $subjectWord . '%';
  921. }
  922. if (!empty($userQuery))
  923. {
  924. if ($subject_query['from'] != '{db_prefix}messages AS m')
  925. {
  926. $subject_query['inner_join'][] = '{db_prefix}messages AS m ON (m.id_topic = t.id_topic)';
  927. }
  928. $subject_query['where'][] = $userQuery;
  929. }
  930. if (!empty($search_params['topic']))
  931. $subject_query['where'][] = 't.id_topic = ' . $search_params['topic'];
  932. if (!empty($minMsgID))
  933. $subject_query['where'][] = 't.id_first_msg >= ' . $minMsgID;
  934. if (!empty($maxMsgID))
  935. $subject_query['where'][] = 't.id_last_msg <= ' . $maxMsgID;
  936. if (!empty($boardQuery))
  937. $subject_query['where'][] = 't.id_board ' . $boardQuery;
  938. if (!empty($excludedPhrases))
  939. {
  940. if ($subject_query['from'] != '{db_prefix}messages AS m')
  941. {
  942. $subject_query['inner_join'][] = '{db_prefix}messages AS m ON (m.id_msg = t.id_first_msg)';
  943. }
  944. $count = 0;
  945. foreach ($excludedPhrases as $phrase)
  946. {
  947. $subject_query['where'][] = 'm.subject NOT ' . (empty($modSettings['search_match_words']) || $no_regexp ? ' LIKE ' : ' RLIKE ') . '{string:excluded_phrases_' . $count . '}';
  948. $subject_query_params['excluded_phrases_' . $count++] = empty($modSettings['search_match_words']) || $no_regexp ? '%' . strtr($phrase, array('_' => '\\_', '%' => '\\%')) . '%' : '[[:<:]]' . addcslashes(preg_replace(array('/([\[\]$.+*?|{}()])/'), array('[$1]'), $phrase), '\\\'') . '[[:>:]]';
  949. }
  950. }
  951. call_integration_hook('integrate_subject_only_search_query', array($subject_query, $subject_query_params));
  952. $relevance = '1000 * (';
  953. foreach ($weight_factors as $type => $value)
  954. {
  955. $relevance .= $weight[$type];
  956. if (!empty($value['search']))
  957. $relevance .= ' * ' . $value['search'];
  958. $relevance .= ' + ';
  959. }
  960. $relevance = substr($relevance, 0, -3) . ') / ' . $weight_total . ' AS relevance';
  961. $ignoreRequest = $smcFunc['db_search_query']('insert_log_search_results_subject',
  962. ($smcFunc['db_support_ignore'] ? '
  963. INSERT IGNORE INTO {db_prefix}log_search_results
  964. (id_search, id_topic, relevance, id_msg, num_matches)' : '') . '
  965. SELECT
  966. {int:id_search},
  967. t.id_topic,
  968. ' . $relevance. ',
  969. ' . (empty($userQuery) ? 't.id_first_msg' : 'm.id_msg') . ',
  970. 1
  971. FROM ' . $subject_query['from'] . (empty($subject_query['inner_join']) ? '' : '
  972. INNER JOIN ' . implode('
  973. INNER JOIN ', $subject_query['inner_join'])) . (empty($subject_query['left_join']) ? '' : '
  974. LEFT JOIN ' . implode('
  975. LEFT JOIN ', $subject_query['left_join'])) . '
  976. WHERE ' . implode('
  977. AND ', $subject_query['where']) . (empty($modSettings['search_max_results']) ? '' : '
  978. LIMIT ' . ($modSettings['search_max_results'] - $numSubjectResults)),
  979. array_merge($subject_query_params, array(
  980. 'id_search' => $_SESSION['search_cache']['id_search'],
  981. 'min_msg' => $minMsg,
  982. 'recent_message' => $recentMsg,
  983. 'huge_topic_posts' => $humungousTopicPosts,
  984. 'is_approved' => 1,
  985. ))
  986. );
  987. // If the database doesn't support IGNORE to make this fast we need to do some tracking.
  988. if (!$smcFunc['db_support_ignore'])
  989. {
  990. while ($row = $smcFunc['db_fetch_row']($ignoreRequest))
  991. {
  992. // No duplicates!
  993. if (isset($inserts[$row[1]]))
  994. continue;
  995. foreach ($row as $key => $value)
  996. $inserts[$row[1]][] = (int) $row[$key];
  997. }
  998. $smcFunc['db_free_result']($ignoreRequest);
  999. $numSubjectResults = count($inserts);
  1000. }
  1001. else
  1002. $numSubjectResults += $smcFunc['db_affected_rows']();
  1003. if (!empty($modSettings['search_max_results']) && $numSubjectResults >= $modSettings['search_max_results'])
  1004. break;
  1005. }
  1006. // If there's data to be inserted for non-IGNORE databases do it here!
  1007. if (!empty($inserts))
  1008. {
  1009. $smcFunc['db_insert']('',
  1010. '{db_prefix}log_search_results',
  1011. array('id_search' => 'int', 'id_topic' => 'int', 'relevance' => 'int', 'id_msg' => 'int', 'num_matches' => 'int'),
  1012. $inserts,
  1013. array('id_search', 'id_topic')
  1014. );
  1015. }
  1016. $_SESSION['search_cache']['num_results'] = $numSubjectResults;
  1017. }
  1018. else
  1019. {
  1020. $main_query = array(
  1021. 'select' => array(
  1022. 'id_search' => $_SESSION['search_cache']['id_search'],
  1023. 'relevance' => '0',
  1024. ),
  1025. 'weights' => array(),
  1026. 'from' => '{db_prefix}topics AS t',
  1027. 'inner_join' => array(
  1028. '{db_prefix}messages AS m ON (m.id_topic = t.id_topic)'
  1029. ),
  1030. 'left_join' => array(),
  1031. 'where' => array(),
  1032. 'group_by' => array(),
  1033. 'parameters' => array(
  1034. 'min_msg' => $minMsg,
  1035. 'recent_message' => $recentMsg,
  1036. 'huge_topic_posts' => $humungousTopicPosts,
  1037. 'is_approved' => 1,
  1038. ),
  1039. );
  1040. if (empty($search_params['topic']) && empty($search_params['show_complete']))
  1041. {
  1042. $main_query['select']['id_topic'] = 't.id_topic';
  1043. $main_query['select']['id_msg'] = 'MAX(m.id_msg) AS id_msg';
  1044. $main_query['select']['num_matches'] = 'COUNT(*) AS num_matches';
  1045. $main_query['weights'] = $weight_factors;
  1046. $main_query['group_by'][] = 't.id_topic';
  1047. }
  1048. else
  1049. {
  1050. // This is outrageous!
  1051. $main_query['select']['id_topic'] = 'm.id_msg AS id_topic';
  1052. $main_query['select']['id_msg'] = 'm.id_msg';
  1053. $main_query['select']['num_matches'] = '1 AS num_matches';
  1054. $main_query['weights'] = array(
  1055. 'age' => array(
  1056. 'search' => '((m.id_msg - t.id_first_msg) / CASE WHEN t.id_last_msg = t.id_first_msg THEN 1 ELSE t.id_last_msg - t.id_first_msg END)',
  1057. ),
  1058. 'first_message' => array(
  1059. 'search' => 'CASE WHEN m.id_msg = t.id_first_msg THEN 1 ELSE 0 END',
  1060. ),
  1061. );
  1062. if (!empty($search_params['topic']))
  1063. {
  1064. $main_query['where'][] = 't.id_topic = {int:topic}';
  1065. $main_query['parameters']['topic'] = $search_params['topic'];
  1066. }
  1067. if (!empty($search_params['show_complete']))
  1068. $main_query['group_by'][] = 'm.id_msg, t.id_first_msg, t.id_last_msg';
  1069. }
  1070. // *** Get the subject results.
  1071. $numSubjectResults = 0;
  1072. if (empty($search_params['topic']))
  1073. {
  1074. $inserts = array();
  1075. // Create a temporary table to store some preliminary results in.
  1076. $smcFunc['db_search_query']('drop_tmp_log_search_topics', '
  1077. DROP TABLE IF EXISTS {db_prefix}tmp_log_search_topics',
  1078. array(
  1079. 'db_error_skip' => true,
  1080. )
  1081. );
  1082. $createTemporary = $smcFunc['db_search_query']('create_tmp_log_search_topics', '
  1083. CREATE TEMPORARY TABLE {db_prefix}tmp_log_search_topics (
  1084. id_topic mediumint(8) unsigned NOT NULL default {string:string_zero},
  1085. PRIMARY KEY (id_topic)
  1086. ) TYPE=HEAP',
  1087. array(
  1088. 'string_zero' => '0',
  1089. 'db_error_skip' => true,
  1090. )
  1091. ) !== false;
  1092. // Clean up some previous cache.
  1093. if (!$createTemporary)
  1094. $smcFunc['db_search_query']('delete_log_search_topics', '
  1095. DELETE FROM {db_prefix}log_search_topics
  1096. WHERE id_search = {int:search_id}',
  1097. array(
  1098. 'search_id' => $_SESSION['search_cache']['id_search'],
  1099. )
  1100. );
  1101. foreach ($searchWords as $orIndex => $words)
  1102. {
  1103. $subject_query = array(
  1104. 'from' => '{db_prefix}topics AS t',
  1105. 'inner_join' => array(),
  1106. 'left_join' => array(),
  1107. 'where' => array(),
  1108. 'params' => array(),
  1109. );
  1110. $numTables = 0;
  1111. $prev_join = 0;
  1112. $count = 0;
  1113. $excluded = false;
  1114. foreach ($words['subject_words'] as $subjectWord)
  1115. {
  1116. $numTables++;
  1117. if (in_array($subjectWord, $excludedSubjectWords))
  1118. {
  1119. if (($subject_query['from'] != '{db_prefix}messages AS m') && !$excluded)
  1120. {
  1121. $subject_query['inner_join'][] = '{db_prefix}messages AS m ON (m.id_msg = t.id_first_msg)';
  1122. $excluded = true;
  1123. }
  1124. $subject_query['left_join'][] = '{db_prefix}log_search_subjects AS subj' . $numTables . ' ON (subj' . $numTables . '.word ' . (empty($modSettings['search_match_words']) ? 'LIKE {string:subject_not_' . $count . '}' : '= {string:subject_not_' . $count . '}') . ' AND subj' . $numTables . '.id_topic = t.id_topic)';
  1125. $subject_query['params']['subject_not_' . $count] = empty($modSettings['search_match_words']) ? '%' . $subjectWord . '%' : $subjectWord;
  1126. $subje

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