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<?php
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// $Id: lootz.module 5 2008-04-25 22:29:50Z jonathan $
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/**
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* @file
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* Allow the use of [item] filters. The item databases are
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* configured in the item_dbs directory. See item_dbs/wowdb.inc
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* for an example.
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*
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* @todo
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* Add more (eg, wowhead, thottbot, etc)
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*/
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/**
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* Implementation of hook_filter()
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*/
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function lootz_filter($op, $delta = 0, $format = -1, $text = '') {
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switch ($op) {
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case 'list':
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return array(0 => t('MMORPG item filter'));
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case 'description':
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return _lootz_invoke_hook('filter_description');
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case 'prepare' :
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return $text;
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case 'process':
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return _lootz_filter_process($text, $format);
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case 'settings' :
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return _lootz_filter_settings();
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}
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}
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/**
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* Implementation of hook_filter_tips()
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*/
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function lootz_filter_tips($delta, $format, $long) {
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return _lootz_invoke_hook('filter_tips', $delta, $format, $long);
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}
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/**
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* Replace [item] tags with corresponding values, if found
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*/
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function _lootz_filter_process($text, $format) {
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// find all links
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if (preg_match_all('#\[item\]([0-9a-zA-Z ]+)\[/item\]#',$text, $links, PREG_SET_ORDER)) {
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foreach ($links as $match) {
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if ($new_link = _lootz_link_item($match[1])) {
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$text = str_replace($match[0], $new_link, $text);
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}
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}
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}
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return $text;
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}
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/**
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* Implementation of hook_init()
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*/
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function lootz_init() {
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_lootz_invoke_hook('init');
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}
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/**
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* @param id string|int Item ID or Name
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* @return string Link to item in configured item db
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*/
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function _lootz_link_item($id) {
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if (is_numeric($id)) {
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// find the name
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$name = _lootz_name_lookup($id);
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}
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else {
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// find id
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$name = $id;
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$id = _lootz_id_lookup($id);
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}
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return _lootz_invoke_hook('link_item', $name, $id);
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}
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/**
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* Find an item name based on ID
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* @param id int Item ID
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* @return string Item name
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*/
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function _lootz_name_lookup($id) {
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static $names = array();
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if (empty($names)) {
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$names = _lootz_cache_get('names');
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}
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if (!isset($names[$id])) {
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$names[$id] = _lootz_invoke_hook('name_lookup', $id);
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_lootz_cache_set('names', $names);
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}
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return $names[$id];
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}
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/**
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* Find an item id based on name
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* @param name string Item Name
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* @return int Item ID
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*/
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function _lootz_id_lookup($name) {
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static $ids = array();
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if (empty($ids)) {
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$ids = _lootz_cache_get('ids');
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}
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if (!isset($ids[$name])) {
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$ids[$name] = _lootz_invoke_hook('id_lookup', $name);
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_lootz_cache_set('ids', $ids);
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}
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return $ids[$name];
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}
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/**
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* Invoke lootz hooks
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*/
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function _lootz_invoke_hook() {
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$args = func_get_args();
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$hook = array_shift($args);
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// determine which vendor to use (default is wowdb)
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$vendor = variable_get('lootz_item_database', 'wowdb');
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require_once 'item_dbs/' . $vendor .'.inc';
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$function = 'lootz_' . $vendor . '_' . $hook;
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if (function_exists($function)) {
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return call_user_func_array($function, $args);
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}
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}
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/**
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* Load lootz cache
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*/
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function _lootz_cache_get($cid) {
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$cache = cache_get('lootz_' . $cid);
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if ($cache) {
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return $cache->data;
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}
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return array();
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}
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/**
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* Store lootz cache
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*/
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function _lootz_cache_set($cid, $value) {
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cache_set('lootz_' . $cid, $value, 'cache', CACHE_TEMPORARY);
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}
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/**
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* Return settings form
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*/
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function _lootz_filter_settings() {
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$form['lootz'] = array(
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'#type' => 'fieldset',
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'#tree' => TRUE,
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'#title' => t('Lootz Settings'),
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'#collapsible' => TRUE,
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);
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$form['lootz']['lootz_item_database'] = array(
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'#type' => 'radios',
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'#title' => t('Item Database'),
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'#options' => _lootz_get_available_item_dbs(),
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'#default_value' => variable_get('lootz_item_database', 'wowdb'),
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'#description' => t('The item lookup database to use'),
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);
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return $form;
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}
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/**
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* Get all available item dbs (as configured in item_dbs directory)
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*/
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function _lootz_get_available_item_dbs() {
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// include all files
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$dir = drupal_get_path('module', 'lootz') . '/item_dbs';
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$available_item_dbs = file_scan_directory($dir, '\.inc$');
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$item_dbs = array();
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foreach (array_keys($available_item_dbs) as $file) {
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if (preg_match('#/([a-z]*)\.inc$#', $file, $m)) {
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// this is the name, eg wowhead, wowdb
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$item_db = $m[1];
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include_once $file;
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$function = 'lootz_' . $item_db . '_item_db_info';
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if (function_exists($function)) {
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$details = call_user_func_array($function, array());
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$item_dbs = array_merge($item_dbs, $details);
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}
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}
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}
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return $item_dbs;
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}
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