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path: root/phpBB/includes/search/search.php
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Diffstat (limited to 'phpBB/includes/search/search.php')
-rw-r--r--phpBB/includes/search/search.php307
1 files changed, 0 insertions, 307 deletions
diff --git a/phpBB/includes/search/search.php b/phpBB/includes/search/search.php
deleted file mode 100644
index 89d5935258..0000000000
--- a/phpBB/includes/search/search.php
+++ /dev/null
@@ -1,307 +0,0 @@
-<?php
-/**
-*
-* @package search
-* @version $Id$
-* @copyright (c) 2005 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
- exit;
-}
-
-/**
-* search_backend
-* optional base class for search plugins providing simple caching based on ACM
-* and functions to retrieve ignore_words and synonyms
-* @package search
-*/
-class search_backend
-{
- const SEARCH_RESULT_NOT_IN_CACHE = 0;
- const SEARCH_RESULT_IN_CACHE = 1;
- const SEARCH_RESULT_INCOMPLETE = 2;
-
- public $ignore_words = array();
- public $match_synonym = array();
- public $replace_synonym = array();
-
- function __construct(&$error)
- {
- // This class cannot be used as a search plugin
- $error = true;
- }
-
- /**
- * Retrieves a language dependend list of words that should be ignored by the search
- */
- public function get_ignore_words()
- {
- if (!sizeof($this->ignore_words))
- {
- $words = array();
-
- if (file_exists(phpbb::$user->lang_path . phpbb::$user->lang_name . '/search_ignore_words.' . PHP_EXT))
- {
- // include the file containing ignore words
- include(phpbb::$user->lang_path . phpbb::$user->lang_name . '/search_ignore_words.' . PHP_EXT);
- }
-
- $this->ignore_words = $words;
- unset($words);
- }
- }
-
- /**
- * Stores a list of synonyms that should be replaced in $this->match_synonym and $this->replace_synonym and caches them
- */
- public function get_synonyms()
- {
- if (!sizeof($this->match_synonym))
- {
- $synonyms = array();
-
- if (file_exists(phpbb::$user->lang_path . phpbb::$user->lang_name . '/search_synonyms.' . PHP_EXT))
- {
- // include the file containing synonyms
- include(phpbb::$user->lang_path . phpbb::$user->lang_name . '/search_synonyms.' . PHP_EXT);
- }
-
- $this->match_synonym = array_keys($synonyms);
- $this->replace_synonym = array_values($synonyms);
-
- unset($synonyms);
- }
- }
-
- /**
- * Retrieves cached search results
- *
- * @param int &$result_count will contain the number of all results for the search (not only for the current page)
- * @param array &$id_ary is filled with the ids belonging to the requested page that are stored in the cache
- *
- * @return int SEARCH_RESULT_NOT_IN_CACHE or SEARCH_RESULT_IN_CACHE or SEARCH_RESULT_INCOMPLETE
- */
- protected function obtain_ids($search_key, &$result_count, &$id_ary, $start, $per_page, $sort_dir)
- {
- if (!($stored_ids = phpbb::$acm->get('search_results_' . $search_key)))
- {
- // no search results cached for this search_key
- return self::SEARCH_RESULT_NOT_IN_CACHE;
- }
- else
- {
- $result_count = $stored_ids[-1];
- $reverse_ids = ($stored_ids[-2] != $sort_dir) ? true : false;
- $complete = true;
-
- // change the start to the actual end of the current request if the sort direction differs
- // from the dirction in the cache and reverse the ids later
- if ($reverse_ids)
- {
- $start = $result_count - $start - $per_page;
-
- // the user requested a page past the last index
- if ($start < 0)
- {
- return self::SEARCH_RESULT_NOT_IN_CACHE;
- }
- }
-
- for ($i = $start, $n = $start + $per_page; ($i < $n) && ($i < $result_count); $i++)
- {
- if (!isset($stored_ids[$i]))
- {
- $complete = false;
- }
- else
- {
- $id_ary[] = $stored_ids[$i];
- }
- }
- unset($stored_ids);
-
- if ($reverse_ids)
- {
- $id_ary = array_reverse($id_ary);
- }
-
- if (!$complete)
- {
- return self::SEARCH_RESULT_INCOMPLETE;
- }
- return self::SEARCH_RESULT_IN_CACHE;
- }
- }
-
- /**
- * Caches post/topic ids
- *
- * @param array &$id_ary contains a list of post or topic ids that shall be cached, the first element
- * must have the absolute index $start in the result set.
- */
- protected function save_ids($search_key, $keywords, $author_ary, $result_count, &$id_ary, $start, $sort_dir)
- {
- $length = min(sizeof($id_ary), phpbb::$config['search_block_size']);
-
- // nothing to cache so exit
- if (!$length)
- {
- return;
- }
-
- $store_ids = array_slice($id_ary, 0, $length);
-
- // create a new resultset if there is none for this search_key yet
- // or add the ids to the existing resultset
- if (!($store = phpbb::$acm->get('search_results_' . $search_key)))
- {
- // add the current keywords to the recent searches in the cache which are listed on the search page
- if (!empty($keywords) || sizeof($author_ary))
- {
- $sql = 'SELECT search_time
- FROM ' . SEARCH_RESULTS_TABLE . '
- WHERE search_key = \'' . phpbb::$db->sql_escape($search_key) . '\'';
- $result = phpbb::$db->sql_query($sql);
-
- if (!phpbb::$db->sql_fetchrow($result))
- {
- $sql_ary = array(
- 'search_key' => $search_key,
- 'search_time' => time(),
- 'search_keywords' => $keywords,
- 'search_authors' => ' ' . implode(' ', $author_ary) . ' '
- );
-
- $sql = 'INSERT INTO ' . SEARCH_RESULTS_TABLE . ' ' . phpbb::$db->sql_build_array('INSERT', $sql_ary);
- phpbb::$db->sql_query($sql);
- }
- phpbb::$db->sql_freeresult($result);
- }
-
- $sql = 'UPDATE ' . USERS_TABLE . '
- SET user_last_search = ' . time() . '
- WHERE user_id = ' . phpbb::$user->data['user_id'];
- phpbb::$db->sql_query($sql);
-
- $store = array(-1 => $result_count, -2 => $sort_dir);
- $id_range = range($start, $start + $length - 1);
- }
- else
- {
- // we use one set of results for both sort directions so we have to calculate the indizes
- // for the reversed array and we also have to reverse the ids themselves
- if ($store[-2] != $sort_dir)
- {
- $store_ids = array_reverse($store_ids);
- $id_range = range($store[-1] - $start - $length, $store[-1] - $start - 1);
- }
- else
- {
- $id_range = range($start, $start + $length - 1);
- }
- }
-
- $store_ids = array_combine($id_range, $store_ids);
-
- // append the ids
- if (is_array($store_ids))
- {
- $store += $store_ids;
-
- // if the cache is too big
- if (sizeof($store) - 2 > 20 * phpbb::$config['search_block_size'])
- {
- // remove everything in front of two blocks in front of the current start index
- for ($i = 0, $n = $id_range[0] - 2 * phpbb::$config['search_block_size']; $i < $n; $i++)
- {
- if (isset($store[$i]))
- {
- unset($store[$i]);
- }
- }
-
- // remove everything after two blocks after the current stop index
- end($id_range);
- for ($i = $store[-1] - 1, $n = current($id_range) + 2 * phpbb::$config['search_block_size']; $i > $n; $i--)
- {
- if (isset($store[$i]))
- {
- unset($store[$i]);
- }
- }
- }
- phpbb::$acm->put('search_results_' . $search_key, $store, phpbb::$config['search_store_results']);
-
- $sql = 'UPDATE ' . SEARCH_RESULTS_TABLE . '
- SET search_time = ' . time() . '
- WHERE search_key = \'' . phpbb::$db->sql_escape($search_key) . '\'';
- phpbb::$db->sql_query($sql);
- }
-
- unset($store);
- unset($store_ids);
- unset($id_range);
- }
-
- /**
- * Removes old entries from the search results table and removes searches with keywords that contain a word in $words.
- */
- public function destroy_cache($words, $authors = false)
- {
- // clear all searches that searched for the specified words
- if (sizeof($words))
- {
- $sql_where = '';
- foreach ($words as $word)
- {
- $sql_where .= " OR search_keywords " . phpbb::$db->sql_like_expression(phpbb::$db->any_char . $word . phpbb::$db->any_char);
- }
-
- $sql = 'SELECT search_key
- FROM ' . SEARCH_RESULTS_TABLE . "
- WHERE search_keywords LIKE '%*%' $sql_where";
- $result = phpbb::$db->sql_query($sql);
-
- while ($row = phpbb::$db->sql_fetchrow($result))
- {
- phpbb::$acm->destroy('search_results_' . $row['search_key']);
- }
- phpbb::$db->sql_freeresult($result);
- }
-
- // clear all searches that searched for the specified authors
- if (is_array($authors) && sizeof($authors))
- {
- $sql_where = '';
- foreach ($authors as $author)
- {
- $sql_where .= (($sql_where) ? ' OR ' : '') . 'search_authors LIKE \'% ' . (int) $author . ' %\'';
- }
-
- $sql = 'SELECT search_key
- FROM ' . SEARCH_RESULTS_TABLE . "
- WHERE $sql_where";
- $result = phpbb::$db->sql_query($sql);
-
- while ($row = phpbb::$db->sql_fetchrow($result))
- {
- phpbb::$acm->destroy('search_results_' . $row['search_key']);
- }
- phpbb::$db->sql_freeresult($result);
- }
-
- $sql = 'DELETE
- FROM ' . SEARCH_RESULTS_TABLE . '
- WHERE search_time < ' . (time() - phpbb::$config['search_store_results']);
- phpbb::$db->sql_query($sql);
- }
-}
-
-?> \ No newline at end of file