--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/paths.php Wed Jun 13 16:07:17 2007 -0400
@@ -0,0 +1,812 @@
+<?php
+
+/**
+ * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+ * Version 1.0 (Banshee)
+ * Copyright (C) 2006-2007 Dan Fuhry
+ * paths.php - The part of Enano that actually manages content. Everything related to page handling and namespaces is in here.
+ *
+ * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
+ *
+ * @package Enano
+ * @subpackage PathManager
+ * @see http://enano.homelinux.org/Help:API_Documentation
+ */
+
+class pathManager {
+ var $pages, $custom_page, $cpage, $page, $fullpage, $page_exists, $namespace, $nslist, $admin_tree, $wiki_mode, $page_protected, $template_cache;
+ function __construct()
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+
+ $GLOBALS['paths'] =& $this;
+ $this->pages = Array();
+
+ dc_here('paths: setting up namespaces, admin nodes');
+
+ // DEFINE NAMESPACES HERE
+ // The key names should NOT EVER be changed, or Enano will be very broken
+ $this->nslist = Array(
+ 'Article' =>'',
+ 'User' =>'User:',
+ 'File' =>'File:',
+ 'Help' =>'Help:',
+ 'Admin' =>'Admin:',
+ 'Special' =>'Special:',
+ 'System' =>'Enano:',
+ 'Template'=>'Template:',
+ 'Category'=>'Category:',
+ 'Project' =>str_replace(' ', '_', getConfig('site_name')).':',
+ );
+
+ // ACL types
+ // Note: you can set any of these to AUTH_DENY to universally and unconditionally deny access to the selected action.
+ // These can also be added from within plugins
+
+ $session->register_acl_type('read', AUTH_ALLOW, 'Read page(s)');
+ $session->register_acl_type('post_comments', AUTH_ALLOW, 'Post comments', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('edit_comments', AUTH_ALLOW, 'Edit own comments', Array('post_comments'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('edit_page', AUTH_WIKIMODE, 'Edit page', Array('view_source'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('view_source', AUTH_WIKIMODE, 'View source', Array('read'), 'Article|User|Project|Template|File|Help|System|Category'); // Only used if the page is protected
+ $session->register_acl_type('mod_comments', AUTH_DISALLOW, 'Moderate comments', Array('edit_comments'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('history_view', AUTH_WIKIMODE, 'View history/diffs', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('history_rollback', AUTH_DISALLOW, 'Rollback history', Array('history_view'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('history_rollback_extra', AUTH_DISALLOW, 'Undelete page(s)', Array('history_rollback'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('protect', AUTH_DISALLOW, 'Protect page(s)', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('rename', AUTH_WIKIMODE, 'Rename page(s)', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('clear_logs', AUTH_DISALLOW, 'Clear page logs (dangerous)', Array('read', 'protect', 'even_when_protected'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('vote_delete', AUTH_ALLOW, 'Vote to delete', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('vote_reset', AUTH_DISALLOW, 'Reset delete votes', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('delete_page', AUTH_DISALLOW, 'Delete page(s)', Array(), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('set_wiki_mode', AUTH_DISALLOW, 'Set per-page wiki mode', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('password_set', AUTH_DISALLOW, 'Set password', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('password_reset', AUTH_DISALLOW, 'Disable/reset password', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('mod_misc', AUTH_DISALLOW, 'Super moderator (generate SQL backtraces, view IP addresses, and send large numbers of private messages)', Array(), 'All');
+ $session->register_acl_type('edit_cat', AUTH_WIKIMODE, 'Edit categorization', Array('read'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('even_when_protected', AUTH_DISALLOW, 'Allow editing, renaming, and categorization even when protected', Array('edit_page', 'rename', 'mod_comments', 'edit_cat'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('upload_files', AUTH_DISALLOW, 'Upload files', Array('create_page'), 'Article|User|Project|Template|File|Help|System|Category|Special');
+ $session->register_acl_type('upload_new_version', AUTH_WIKIMODE, 'Upload new versions of files', Array('upload_files'), 'Article|User|Project|Template|File|Help|System|Category|Special');
+ $session->register_acl_type('create_page', AUTH_WIKIMODE, 'Create pages', Array(), 'Article|User|Project|Template|File|Help|System|Category|Special');
+ $session->register_acl_type('php_in_pages', AUTH_DISALLOW, 'Embed PHP code in pages', Array('edit_page'), 'Article|User|Project|Template|File|Help|System|Category');
+ $session->register_acl_type('edit_acl', AUTH_DISALLOW, 'Edit access control lists', Array('read', 'post_comments', 'edit_comments', 'edit_page', 'view_source', 'mod_comments', 'history_view', 'history_rollback', 'history_rollback_extra', 'protect', 'rename', 'clear_logs', 'vote_delete', 'vote_reset', 'delete_page', 'set_wiki_mode', 'password_set', 'password_reset', 'mod_misc', 'edit_cat', 'even_when_protected', 'upload_files', 'upload_new_version', 'create_page', 'php_in_pages'));
+
+ // DO NOT add new admin pages here! Use a plugin to call $paths->addAdminNode();
+ $this->addAdminNode('General', 'General Configuration', 'GeneralConfig');
+ $this->addAdminNode('General', 'File uploads', 'UploadConfig');
+ $this->addAdminNode('General', 'Allowed file types', 'UploadAllowedMimeTypes');
+ $this->addAdminNode('General', 'Manage Plugins', 'PluginManager');
+ $this->addAdminNode('General', 'Backup database', 'DBBackup');
+ $this->addAdminNode('Content', 'Manage Pages', 'PageManager');
+ $this->addAdminNode('Content', 'Edit page content', 'PageEditor');
+ $this->addAdminNode('Appearance', 'Manage themes', 'ThemeManager');
+ $this->addAdminNode('Users', 'Manage users', 'UserManager');
+ $this->addAdminNode('Users', 'Edit groups', 'GroupManager');
+ $this->addAdminNode('Users', 'Ban control', 'BanControl');
+ $this->addAdminNode('Users', 'Mass e-mail', 'MassEmail');
+
+ $code = $plugins->setHook('acl_rule_init');
+ foreach ( $code as $cmd )
+ {
+ eval($cmd);
+ }
+
+ $this->wiki_mode = (int)getConfig('wiki_mode')=='1';
+ $this->template_cache = Array();
+ }
+ function pathManager()
+ {
+ $this->__construct();
+ }
+ function init()
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+
+ dc_here('paths: selecting master page data');
+
+ $code = $plugins->setHook('paths_init_before');
+ foreach ( $code as $cmd )
+ {
+ eval($cmd);
+ }
+
+ $e = $db->sql_query('SELECT name,urlname,namespace,special,visible,comments_on,protected,delvotes,delvote_ips,wiki_mode,password FROM '.table_prefix.'pages ORDER BY name;');
+ if( !$e )
+ {
+ $db->_die('The error seems to have occured while selecting the page information. File: includes/paths.php; line: '.__LINE__);
+ }
+ while($r = $db->fetchrow())
+ {
+
+ $r['urlname_nons'] = $r['urlname'];
+ $r['urlname'] = $this->nslist[$r['namespace']] . $r['urlname']; // Applies the User:/File:/etc prefixes to the URL names
+
+ if ( $r['delvotes'] == null)
+ {
+ $r['delvotes'] = 0;
+ }
+ if ( $r['protected'] == 0 || $r['protected'] == 1 )
+ {
+ $r['really_protected'] = (int)$r['protected'];
+ }
+ else if ( $r['protected'] == 2 && getConfig('wiki_mode') == '1')
+ {
+ $r['really_protected'] = 1;
+ }
+ else if ( $r['protected'] == 2 && getConfig('wiki_mode') == '0' )
+ {
+ $r['really_protected'] = 0;
+ }
+
+ $this->pages[$r['urlname']] = $r;
+ $this->pages[] =& $this->pages[$r['urlname']];
+
+ }
+ $db->free_result();
+ dc_here('paths: determining page ID');
+ if( isset($_GET['title']) )
+ {
+ if ( $_GET['title'] == '' && getConfig('main_page') != '' )
+ {
+ $this->main_page();
+ }
+ if(strstr($_GET['title'], ' '))
+ {
+ $loc = urldecode(rawurldecode($_SERVER['REQUEST_URI']));
+ $loc = str_replace(' ', '_', $loc);
+ $loc = str_replace('+', '_', $loc);
+ $loc = str_replace('%20', '_', $loc);
+ redirect($loc, 'Redirecting...', 'Space detected in the URL, please wait whilst you are redirected', 0);
+ exit;
+ }
+ $url_namespace_special = substr($_GET['title'], 0, strlen($this->nslist['Special']) );
+ $url_namespace_template = substr($_GET['title'], 0, strlen($this->nslist['Template']) );
+ if($url_namespace_special == $this->nslist['Special'] || $url_namespace_template == $this->nslist['Template'] )
+ {
+ $ex = explode('/', $_GET['title']);
+ $this->page = $ex[0];
+ }
+ else
+ {
+ $this->page = $_GET['title'];
+ }
+ $this->fullpage = $_GET['title'];
+ }
+ elseif( isset($_SERVER['PATH_INFO']) )
+ {
+ $pi = explode('/', $_SERVER['PATH_INFO']);
+
+ if( !isset($pi[1]) || (isset($pi[1]) && $pi[1] == '' && getConfig('main_page') != '') )
+ {
+ $this->main_page();
+ }
+ if( strstr($pi[1], ' ') )
+ {
+ $loc = str_replace(' ', '_', urldecode(rawurldecode($_SERVER['REQUEST_URI'])));
+ $loc = str_replace('+', '_', $loc);
+ $loc = str_replace('%20', '_', $loc);
+ redirect($loc, 'Redirecting...', 'Please wait whilst you are redirected', 3);
+ exit;
+ }
+ unset($pi[0]);
+ if( substr($pi[1], 0, strlen($this->nslist['Special'])) == $this->nslist['Special'] || substr($pi[1], 0, strlen($this->nslist['Template'])) == $this->nslist['Template'] )
+ {
+ $pi2 = $pi[1];
+ }
+ else
+ {
+ $pi2 = implode('/', $pi);
+ }
+ $this->page = $pi2;
+ $this->fullpage = implode('/', $pi);
+ }
+ else
+ {
+ $k = array_keys($_GET);
+ foreach($k as $c)
+ {
+ if(substr($c, 0, 1) == '/')
+ {
+ $this->page = substr($c, 1, strlen($c));
+
+ // Bugfix for apache somehow passing dots as underscores
+ global $mime_types;
+
+ $exts = array_keys($mime_types);
+ $exts = '(' . implode('|', $exts) . ')';
+
+ if ( preg_match( '#_'.$exts.'#i', $this->page ) )
+ {
+ $this->page = preg_replace( '#_'.$exts.'#i', '.\\1', $this->page );
+ }
+
+ $this->fullpage = $this->page;
+
+ if(substr($this->page, 0, strlen($this->nslist['Special']))==$this->nslist['Special'] || substr($this->page, 0, strlen($this->nslist['Template']))==$this->nslist['Template'])
+ {
+ $ex = explode('/', $this->page);
+ $this->page = $ex[0];
+ }
+ if(strstr($this->page, ' '))
+ {
+ $loc = str_replace(' ', '_', urldecode(rawurldecode($_SERVER['REQUEST_URI'])));
+ $loc = str_replace('+', '_', $loc);
+ $loc = str_replace('%20', '_', $loc);
+ redirect($loc, 'Redirecting...', 'Space in the URL detected, please wait whilst you are redirected', 0);
+ exit;
+ }
+ break;
+ }
+ }
+ if(!$this->page && !($this->page == '' && getConfig('main_page') == ''))
+ {
+ $this->main_page();
+ }
+ }
+
+ dc_here('paths: setting $paths->cpage');
+
+ if(isset($this->pages[$this->page]))
+ {
+ dc_here('paths: page existence verified, our page ID is: '.$this->page);
+ $this->page_exists = true;
+ $this->cpage = $this->pages[$this->page];
+ $this->namespace = $this->cpage['namespace'];
+ if(!isset($this->cpage['wiki_mode'])) $this->cpage['wiki_mode'] = 2;
+
+ // Determine the wiki mode for this page, now that we have this->cpage established
+ if($this->cpage['wiki_mode'] == 2)
+ {
+ $this->wiki_mode = (int)getConfig('wiki_mode');
+ }
+ else
+ {
+ $this->wiki_mode = $this->cpage['wiki_mode'];
+ }
+ // Allow the user to create/modify his user page uncondtionally (admins can still protect the page)
+ if($this->page == $this->nslist['User'].str_replace(' ', '_', $session->username))
+ {
+ $this->wiki_mode = true;
+ }
+ // And above all, if the site requires wiki mode to be off for non-logged-in users, disable it now
+ if(getConfig('wiki_mode_require_login')=='1' && !$session->user_logged_in)
+ {
+ $this->wiki_mode = false;
+ }
+ if($this->cpage['protected'] == 2)
+ {
+ // The page is semi-protected, determine permissions
+ if($session->user_logged_in && $session->reg_time + 60*60*24*4 < time())
+ {
+ $this->page_protected = 0;
+ }
+ else
+ {
+ $this->page_protected = 1;
+ }
+ }
+ else
+ {
+ $this->page_protected = $this->cpage['protected'];
+ }
+ }
+ else
+ {
+ dc_here('paths: page doesn\'t exist, creating new page in memory<br />our page ID is: '.$this->page);
+ $this->page_exists = false;
+ $this->cpage = Array(
+ 'name'=>str_replace('_', ' ', $this->page),
+ 'urlname'=>$this->page,
+ 'namespace'=>'Article',
+ 'special'=>0,
+ 'visible'=>0,
+ 'comments_on'=>1,
+ 'protected'=>0,
+ 'delvotes'=>0,
+ 'delvote_ips'=>'',
+ 'wiki_mode'=>2,
+ );
+ // Look for a namespace prefix in the urlname, and assign a different namespace, if necessary
+ $k = array_keys($this->nslist);
+ for($i=0;$i<sizeof($this->nslist);$i++)
+ {
+ $ln = strlen($this->nslist[$k[$i]]);
+ if( substr($this->page, 0, $ln) == $this->nslist[$k[$i]] )
+ {
+ $this->cpage['namespace'] = $k[$i];
+ $this->cpage['urlname_nons'] = substr($this->page, strlen($this->nslist[$this->cpage['namespace']]), strlen($this->page));
+ if(!isset($this->cpage['wiki_mode']))
+ {
+ $this->cpage['wiki_mode'] = 2;
+ }
+ }
+ }
+ $this->namespace = $this->cpage['namespace'];
+
+ if($this->namespace=='System')
+ {
+ $this->cpage['protected'] = 1;
+ }
+ if($this->namespace=='Special')
+ {
+ // Can't load nonexistent pages
+ $this->main_page();
+ }
+ // Allow the user to create/modify his user page uncondtionally (admins can still protect the page)
+ if($this->page == $this->nslist['User'].str_replace(' ', '_', $session->username))
+ {
+ $this->wiki_mode = true;
+ }
+ }
+ // This is used in the admin panel to keep track of form submission targets
+ $this->cpage['module'] = $this->cpage['urlname'];
+
+ // Page is set up, call any hooks
+ $code = $plugins->setHook('page_set');
+ foreach ( $code as $cmd )
+ {
+ eval($cmd);
+ }
+
+ $session->init_permissions();
+ }
+
+ function add_page($flags)
+ {
+ //dc_dump($flags, 'paths: page added by plugin:');
+ $flags['urlname_nons'] = $flags['urlname'];
+ $flags['urlname'] = $this->nslist[$flags['namespace']] . $flags['urlname']; // Applies the User:/File:/etc prefixes to the URL names
+ $pages_len = sizeof($this->pages)/2;
+ $this->pages[$pages_len] = $flags;
+ $this->pages[$flags['urlname']] =& $this->pages[$pages_len];
+ }
+
+ function main_page()
+ {
+ if( is_string(getConfig('main_page')) )
+ {
+ header('Location: '.makeUrl(getConfig('main_page')));
+ die('If you aren\'t redirected, <a href="' . makeUrl(getConfig('main_page')) . '">click here</a>.');
+ }
+ else
+ {
+ header('Location: '.makeUrl($this->pages[0]['urlname']));
+ die('If you aren\'t redirected, <a href="' . makeUrl($this->pages[0]['urlname']) . '">click here</a>.');
+ }
+ exit;
+ }
+
+ function sysmsg($n)
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ dc_here('paths: system message requested: '.$n);
+ $q = $db->sql_query('SELECT page_text, char_tag FROM '.table_prefix.'page_text WHERE page_id=\''.$db->escape($n).'\' AND namespace=\'System\'');
+ if( !$q )
+ {
+ $db->_die('Error during generic selection of system page data.');
+ }
+ if($db->numrows() < 1)
+ {
+ return false;
+ //$db->_die('Error during generic selection of system page data: there were no rows in the text table that matched the page text query.');
+ }
+ $r = $db->fetchrow();
+ $db->free_result();
+ $message = $r['page_text'];
+
+ $message = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '', $message);
+
+ return $message;
+ }
+ function get_pageid_from_url()
+ {
+ if(isset($_GET['title']))
+ {
+ if( $_GET['title'] == '' && getConfig('main_page') != '' )
+ {
+ $this->main_page();
+ }
+ if(strstr($_GET['title'], ' '))
+ {
+ $loc = urldecode(rawurldecode($_SERVER['REQUEST_URI']));
+ $loc = str_replace(' ', '_', $loc);
+ $loc = str_replace('+', '_', $loc);
+ header('Location: '.$loc);
+ exit;
+ }
+ $ret = $_GET['title'];
+ }
+ elseif(isset($_SERVER['PATH_INFO']))
+ {
+ $pi = explode('/', $_SERVER['PATH_INFO']);
+
+ if(!isset($pi[1]) || (isset($pi[1]) && $pi[1] == ''))
+ {
+ return false;
+ }
+
+ if(strstr($pi[1], ' '))
+ {
+ $loc = urldecode(rawurldecode($_SERVER['REQUEST_URI']));
+ $loc = str_replace(' ', '_', $loc);
+ $loc = str_replace('+', '_', $loc);
+ header('Location: '.$loc);
+ exit;
+ }
+ if( !( substr($pi[1], 0, strlen($this->nslist['Special'])) == $this->nslist['Special'] ) )
+ {
+ unset($pi[0]);
+ $pi[1] = implode('/', $pi);
+ }
+ $ret = $pi[1];
+ }
+ else
+ {
+ $k = array_keys($_GET);
+ foreach($k as $c)
+ {
+ if(substr($c, 0, 1) == '/')
+ {
+ $ret = substr($c, 1, strlen($c));
+ if(substr($ret, 0, strlen($this->nslist['Special'])) == $this->nslist['Special'] ||
+ substr($ret, 0, strlen($this->nslist['Admin'])) == $this->nslist['Admin'])
+ {
+ $ret = explode('/', $ret);
+ $ret = $ret[0];
+ }
+ break;
+ }
+ }
+ }
+
+ return ( isset($ret) ) ? $ret : false;
+ }
+ // Parses a (very carefully formed) array into Javascript code compatible with the Tigra Tree Menu used in the admin menu
+ function parseAdminTree()
+ {
+ $k = array_keys($this->admin_tree);
+ $i = 0;
+ $ret = '';
+ $ret .= "var TREE_ITEMS = [\n ['Administration panel home', 'javascript:ajaxPage(\'".$this->nslist['Admin']."Home\');',\n ";
+ foreach($k as $key)
+ {
+ $i++;
+ $ret .= "['".$key."', 'javascript:trees[0].toggle($i)', \n";
+ foreach($this->admin_tree[$key] as $c)
+ {
+ $i++;
+ $ret .= " ['".$c['name']."', 'javascript:ajaxPage(\\'".$this->nslist['Admin'].$c['pageid']."\\');'],\n";
+ }
+ $ret .= " ],\n";
+ }
+ $ret .= " ['Log out of admin panel', 'javascript:ajaxPage(\\'".$this->nslist['Admin']."AdminLogout\\');'],\n";
+ // I used this while I painstakingly wrote the Runt code that auto-expands certain nodes based on the value of a bitfield stored in a cookie. *shudders*
+ // $ret .= " ['(debug) Clear menu bitfield', 'javascript:createCookie(\\'admin_menu_state\\', \\'1\\', 365);'],\n";
+ $ret .= "]\n];";
+ return $ret;
+ }
+ function addAdminNode($section, $page_title, $url)
+ {
+ if(!isset($this->admin_tree[$section]))
+ {
+ $this->admin_tree[$section] = Array();
+ }
+ $this->admin_tree[$section][] = Array(
+ 'name'=>$page_title,
+ 'pageid'=>$url
+ );
+ }
+ function getParam($id = 0)
+ {
+ if(isset($_SERVER['PATH_INFO']))
+ {
+ $pi = explode('/', $_SERVER['PATH_INFO']);
+ $id = $id + 2;
+ return isset($pi[$id]) ? $pi[$id] : false;
+ }
+ else if( isset($_GET['title']) )
+ {
+ $pi = explode('/', $_GET['title']);
+ $id = $id + 1;
+ return isset($pi[$id]) ? $pi[$id] : false;
+ }
+ else
+ {
+ $k = array_keys($_GET);
+ foreach($k as $c)
+ {
+ if(substr($c, 0, 1) == '/')
+ {
+
+ // Bugfix for apache somehow passing dots as underscores
+ global $mime_types;
+ $exts = array_keys($mime_types);
+ $exts = '(' . implode('|', $exts) . ')';
+ if ( preg_match( '#_'.$exts.'#i', $c ) )
+ $c = preg_replace( '#_'.$exts.'#i', '.\\1', $c );
+
+ $pi = explode('/', $c);
+ $id = $id + 2;
+ return isset($pi[$id]) ? $pi[$id] : false;
+ }
+ }
+ return false;
+ }
+ }
+
+ function getAllParams()
+ {
+ if(isset($_SERVER['PATH_INFO']))
+ {
+ $pi = explode('/', $_SERVER['PATH_INFO']);
+ unset($pi[0], $pi[1]);
+ return implode('/', $pi);
+ }
+ else if( isset($_GET['title']) )
+ {
+ $pi = explode('/', $_GET['title']);
+ unset($pi[0]);
+ return implode('/', $pi);
+ }
+ else
+ {
+ $k = array_keys($_GET);
+ foreach($k as $c)
+ {
+ if(substr($c, 0, 1) == '/')
+ {
+ // Bugfix for apache somehow passing dots as underscores
+ global $mime_types;
+ $exts = array_keys($mime_types);
+ $exts = '(' . implode('|', $exts) . ')';
+ if ( preg_match( '#_'.$exts.'#i', $c ) )
+ $c = preg_replace( '#_'.$exts.'#i', '.\\1', $c );
+
+ $pi = explode('/', $c);
+ unset($pi[0], $pi[1]);
+ return implode('/', $pi);
+ }
+ }
+ return false;
+ }
+ }
+
+ /**
+ * Creates a new namespace in memory
+ * @param string $id the namespace ID
+ * @param string $prefix the URL prefix, must not be blank or already used
+ * @return bool true on success false on failure
+ */
+
+ function create_namespace($id, $prefix)
+ {
+ if(in_array($prefix, $this->nslist))
+ {
+ // echo '<b>Warning:</b> pathManager::create_namespace: Prefix "'.$prefix.'" is already taken<br />';
+ return false;
+ }
+ if( isset($this->nslist[$id]) )
+ {
+ // echo '<b>Warning:</b> pathManager::create_namespace: Namespace ID "'.$prefix.'" is already taken<br />';
+ return false;
+ }
+ $this->nslist[$id] = $prefix;
+ }
+
+ /**
+ * Fetches the page texts for searching
+ */
+
+ function fetch_page_search_texts()
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ $texts = Array();
+ $q = $db->sql_query('SELECT t.page_id,t.namespace,t.page_text,t.char_tag FROM '.table_prefix.'page_text AS t
+ LEFT JOIN '.table_prefix.'pages AS p
+ ON t.page_id=p.urlname
+ WHERE p.namespace=t.namespace
+ AND ( p.password=\'\' OR p.password=\'da39a3ee5e6b4b0d3255bfef95601890afd80709\' )
+ AND p.visible=1;'); // Only indexes "visible" pages
+
+ if( !$q )
+ {
+ return false;
+ }
+ while($row = $db->fetchrow())
+ {
+ $pid = $this->nslist[$row['namespace']] . $row['page_id'];
+ $texts[$pid] = $row['page_text'];
+ }
+ $db->free_result();
+
+ return $texts;
+ }
+
+ /**
+ * Fetches a MySQL search query to use for Searcher::searchMySQL()
+ */
+
+ function fetch_page_search_resource()
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ // sha1('') returns "da39a3ee5e6b4b0d3255bfef95601890afd80709"
+ $texts = 'SELECT t.page_text,CONCAT(\'ns=\',t.namespace,\';pid=\',t.page_id) FROM '.table_prefix.'page_text AS t
+ LEFT JOIN '.table_prefix.'pages AS p
+ ON ( t.page_id=p.urlname AND t.namespace=p.namespace )
+ WHERE p.namespace=t.namespace
+ AND ( p.password=\'\' OR p.password=\'da39a3ee5e6b4b0d3255bfef95601890afd80709\' )
+ AND p.visible=1;'; // Only indexes "visible" pages
+ return $texts;
+ }
+
+ /**
+ * Rebuilds the search index
+ */
+
+ function rebuild_search_index()
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ $search = new Searcher();
+ $texts = Array();
+ $textq = $db->sql_unbuffered_query($this->fetch_page_search_resource());
+ if(!$textq) $db->_die('');
+ while($row = $db->fetchrow_num())
+ {
+ $texts[(string)$row[1]] = $row[0];
+ }
+ $search->buildIndex($texts);
+ // echo '<pre>'.print_r($search->index, true).'</pre>';
+ // return;
+ $q = $db->sql_query('DELETE FROM '.table_prefix.'search_index');
+ if(!$q) return false;
+ $secs = Array();
+ $q = 'INSERT INTO '.table_prefix.'search_index(word,page_names) VALUES';
+ foreach($search->index as $word => $pages)
+ {
+ $secs[] = '(\''.$db->escape($word).'\', \''.$db->escape($pages).'\')';
+ }
+ $q .= implode(',', $secs);
+ unset($secs);
+ $q .= ';';
+ $result = $db->sql_query($q);
+ $db->free_result();
+ if($result)
+ return true;
+ else
+ $db->_die('The search index was trying to rebuild itself when the error occured.');
+ }
+
+ /**
+ * Partially rebuilds the search index, removing/inserting entries only for the current page
+ * @param string $page_id
+ * @param string $namespace
+ */
+
+ function rebuild_page_index($page_id, $namespace)
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ if(!$db->sql_query('SELECT page_text FROM '.table_prefix.'page_text
+ WHERE page_id=\''.$db->escape($page_id).'\' AND namespace=\''.$db->escape($namespace).'\';'))
+ {
+ return $db->get_error();
+ }
+ $row = $db->fetchrow();
+ $db->free_result();
+ $search = new Searcher();
+ $search->buildIndex(Array("ns={$namespace};pid={$page_id}"=>$row['page_text']));
+ $new_index = $search->index;
+
+ $keys = array_keys($search->index);
+ foreach($keys as $i => $k)
+ {
+ $c =& $keys[$i];
+ $c = hexencode($c, '', '');
+ }
+ $keys = "word=0x" . implode ( " OR word=0x", $keys ) . "";
+
+ // Zap the cache
+ $cache = array_keys($search->index);
+ if ( count($cache) < 1 )
+ {
+ return false;
+ }
+ $cache = "query LIKE '%" . implode ( "%' OR query LIKE '%", $cache ) . "%'";
+ $db->sql_query('DELETE FROM '.table_prefix.'search_cache WHERE '.$cache);
+
+ $query = $db->sql_query('SELECT word,page_names FROM '.table_prefix.'search_index WHERE '.$keys.';');
+
+ while($row = $db->fetchrow())
+ {
+ $row['word'] = rtrim($row['word'], "\0");
+ $new_index[ $row['word'] ] = $row['page_names'] . ',' . $search->index[ $row['word'] ];
+ }
+ $db->free_result();
+
+ $db->sql_query('DELETE FROM '.table_prefix.'search_index WHERE '.$keys.';');
+
+ $secs = Array();
+ $q = 'INSERT INTO '.table_prefix.'search_index(word,page_names) VALUES';
+ foreach($new_index as $word => $pages)
+ {
+ $secs[] = '(\''.$db->escape($word).'\', \''.$db->escape($pages).'\')';
+ }
+ $q .= implode(',', $secs);
+ unset($secs);
+ $q .= ';';
+ if(!$db->check_query($q))
+ {
+ die('BUG: PathManager::rebuild_page_index: Query rejected by SQL parser:<pre>'.$q.'</pre>');
+ }
+ $result = $db->sql_query($q);
+ if($result)
+ return true;
+ else
+ $db->_die('The search index was trying to rebuild itself when the error occured.');
+
+ }
+
+ /**
+ * Creates an instance of the Searcher class, including index info
+ * @return object
+ */
+
+ function makeSearcher($match_case = false)
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ $search = new Searcher();
+ $q = $db->sql_query('SELECT word,page_names FROM '.table_prefix.'search_index;');
+ if(!$q)
+ {
+ echo $db->get_error();
+ return false;
+ }
+ $idx = Array();
+ while($row = $db->fetchrow($q))
+ {
+ $row['word'] = rtrim($row['word'], "\0");
+ $idx[$row['word']] = $row['page_names'];
+ }
+ $db->free_result();
+ $search->index = $idx;
+ if($match_case)
+ $search->match_case = true;
+ return $search;
+ }
+
+ /**
+ * Creates an associative array filled with the values of all the page titles
+ * @return array
+ */
+
+ function get_page_titles()
+ {
+ $texts = Array();
+ for ( $i = 0; $i < sizeof($this->pages) / 2; $i++ )
+ {
+ $texts[$this->pages[$i]['urlname']] = $this->pages[$i]['name'];
+ }
+ return $texts;
+ }
+
+ /**
+ * Creates an instance of the Searcher class, including index info for page titles
+ * @return object
+ */
+
+ function makeTitleSearcher($match_case = false)
+ {
+ global $db, $session, $paths, $template, $plugins; // Common objects
+ $search = new Searcher();
+ $texts = $this->get_page_titles();
+ $search->buildIndex($texts);
+ if($match_case)
+ $search->match_case = true;
+ return $search;
+ }
+
+}
+
+?>