<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.1.2 (Caoineag alpha 2)
* pageprocess.php - intelligent retrieval of pages
* Copyright (C) 2006-2007 Dan Fuhry
*
* 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.
*/
/**
* Class to handle fetching page text (possibly from a cache) and formatting it.
* As of 1.0.4, this also handles the fetching and editing of certain data for pages.
* @package Enano
* @subpackage UI
* @copyright 2007 Dan Fuhry
* @license GNU General Public License <http://www.gnu.org/licenses/gpl.html>
*/
class PageProcessor
{
/**
* Page ID and namespace of the page handled by this instance
* @var string
*/
var $page_id;
var $namespace;
/**
* The title of the page sent to the template parser
* @var string
*/
var $title = '';
/**
* The information about the page(s) we were redirected from
* @var array
*/
var $redirect_stack = array();
/**
* The revision ID (history entry) to send. If set to 0 (the default) then the most recent revision will be sent.
* @var int
*/
var $revision_id = 0;
/**
* Unsanitized page ID.
* @var string
*/
var $page_id_unclean;
/**
* Tracks if the page we're loading exists in the database or not.
* @var bool
*/
var $page_exists = false;
/**
* Permissions!
* @var object
*/
var $perms = null;
/**
* The SHA1 hash of the user-inputted password for the page
* @var string
*/
var $password = '';
/**
* Switch to track if redirects are allowed. Defaults to true.
* @var bool
*/
var $allow_redir = true;
/**
* If this is set to true, this will call the header and footer funcs on $template when render() is called.
* @var bool
*/
var $send_headers = false;
/**
* Cache the fetched text so we don't fetch it from the DB twice.
* @var string
*/
var $text_cache = '';
/**
* Debugging information to track errors. You can set enable to false to disable sending debug information.
* @var array
*/
var $debug = array(
'enable' => false,
'works' => false
);
/**
* The list of errors raised in the class.
* @var array
*/
var $_errors = array();
/**
* Constructor.
* @param string The page ID (urlname) of the page
* @param string The namespace of the page
* @param int Optional. The revision ID to send.
*/
function __construct( $page_id, $namespace, $revision_id = 0 )
{
global $db, $session, $paths, $template, $plugins; // Common objects
profiler_log("PageProcessor [{$namespace}:{$page_id}]: Started constructor");
// See if we can get some debug info
if ( function_exists('debug_backtrace') && $this->debug['enable'] )
{
$this->debug['works'] = true;
$this->debug['backtrace'] = enano_debug_print_backtrace(true);
}
// First things first - check page existence and permissions
if ( !isset($paths->nslist[$namespace]) )
{
$this->send_error('The namespace "' . htmlspecialchars($namespace) . '" does not exist.');
}
if ( !is_int($revision_id) )
$revision_id = 0;
profiler_log("PageProcessor [{$namespace}:{$page_id}]: Ran initial checks");
$this->_setup( $page_id, $namespace, $revision_id );
}
/**
* The main method to send the page content. Also responsible for checking permissions and calling the statistics counter.
* @param bool If true, the stat counter is called. Defaults to false.
*/
function send( $do_stats = false )
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Started send process");
if ( !$this->perms->get_permissions('read') )
{
$this->err_access_denied();
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
return false;
}
$pathskey = $paths->nslist[ $this->namespace ] . $this->page_id;
$strict_no_headers = false;
if ( $this->namespace == 'Admin' && strstr($this->page_id, '/') )
{
$this->page_id = substr($this->page_id, 0, strpos($this->page_id, '/'));
$funcname = "page_{$this->namespace}_{$this->page_id}";
if ( function_exists($funcname) )
{
$this->page_exists = true;
}
}
if ( isset($paths->pages[$pathskey]) )
{
if ( $paths->pages[$pathskey]['special'] == 1 )
{
$this->send_headers = false;
$strict_no_headers = true;
}
if ( isset($paths->pages[$pathskey]['password']) )
{
if ( $paths->pages[$pathskey]['password'] != '' && $paths->pages[$pathskey]['password'] != sha1('') )
{
$password =& $paths->pages[$pathskey]['password'];
if ( $this->password != $password )
{
$this->err_wrong_password();
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
return false;
}
}
}
}
if ( $this->page_exists && $this->namespace != 'Special' && $this->namespace != 'Admin' && $do_stats )
{
doStats($this->page_id, $this->namespace);
}
if ( $this->namespace == 'Special' || $this->namespace == 'Admin' )
{
if ( !$this->page_exists )
{
$func_name = "page_{$this->namespace}_{$this->page_id}";
die_semicritical($lang->get('page_msg_admin_404_title'), $lang->get('page_msg_admin_404_body', array('func_name' => $func_name)));
}
$func_name = "page_{$this->namespace}_{$this->page_id}";
if ( function_exists($func_name) )
{
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Calling special/admin page");
$result = @call_user_func($func_name);
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
return $result;
}
else
{
$title = $lang->get('page_err_custompage_function_missing_title');
$message = $lang->get('page_err_custompage_function_missing_body', array( 'function_name' => $fname ));
if ( $this->send_headers )
{
$template->tpl_strings['PAGE_NAME'] = $title;
$template->header();
echo "<p>$message</p>";
$template->footer();
}
else
{
echo "<h2>$title</h2>
<p>$message</p>";
}
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
return false;
}
}
else if ( $this->namespace == 'User' && strpos($this->page_id, '/') === false )
{
$this->_handle_userpage();
}
else if ( ( $this->namespace == 'Template' || $this->namespace == 'System' ) && $this->page_exists )
{
$this->header();
$text = $this->fetch_text();
$text = preg_replace('/<noinclude>(.*?)<\/noinclude>/is', '\\1', $text);
$text = preg_replace('/<nodisplay>(.*?)<\/nodisplay>/is', '', $text);
$text = RenderMan::render( $text );
eval( '?>' . $text );
$this->footer();
}
else if ( $this->namespace == 'Anonymous' )
{
$uri = scriptPath . '/' . $this->page_id;
if ( !$this->send_headers )
{
$sep = ( strstr($uri, '?') ) ? '&' : '?';
$uri .= "{$sep}noheaders";
}
redirect( $uri, '', '', 0 );
}
else if ( !$this->page_exists )
{
// Perhaps this is hooked?
ob_start();
$code = $plugins->setHook('page_not_found');
foreach ( $code as $cmd )
{
eval($cmd);
}
$ob = ob_get_contents();
if ( empty($ob) )
{
$this->err_page_not_existent();
}
else
{
// Something sent content, so we'll assume the page exist...ed at least according to the plugin
if ( $this->namespace != 'Special' && $this->namespace != 'Admin' && $do_stats )
{
doStats($this->page_id, $this->namespace);
}
}
}
else // (disabled for compatibility reasons) if ( in_array($this->namespace, array('Article', 'User', 'Project', 'Help', 'File', 'Category')) && $this->page_exists )
{
// Send as regular page
// die($this->page_id);
$text = $this->fetch_text();
if ( $text == 'err_no_text_rows' )
{
$this->err_no_rows();
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
return false;
}
else
{
$redirect = ( isset($_GET['redirect']) ) ? $_GET['redirect'] : 'YES YOU IDIOT';
if ( preg_match('/^#redirect \[\[([^\]]+)\]\]/i', $text, $match) && $redirect != 'no' )
{
// Redirect page!
$page_to = sanitize_page_id($match[1]);
$page_id_data = RenderMan::strToPageID($page_to);
if ( count($this->redirect_stack) >= 3 )
{
$this->render( (!$strict_no_headers), '<div class="usermessage"><b>' . $lang->get('page_err_redirects_exceeded') . '</b></div>' );
}
else
{
$result = $this->_handle_redirect($page_id_data[0], $page_id_data[1]);
if ( $result !== true )
{
// There was some error during the redirect process - usually an infinite redirect
$this->render( (!$strict_no_headers), '<div class="usermessage"><b>' . $result . '</b></div>' );
}
}
}
else
{
$this->render( (!$strict_no_headers) );
}
}
}
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Finished send process");
}
/**
* Fetches the wikitext or HTML source for the page.
* @return string
*/
function fetch_source()
{
if ( !$this->perms->get_permissions('view_source') )
{
return false;
}
if ( !$this->page_exists )
{
return '';
}
return $this->fetch_text();
}
/**
* Updates the content of the page.
* @param string The new text for the page
* @param string A summary of edits made to the page.
* @param bool If true, the edit is marked as a minor revision
* @return bool True on success, false on failure
*/
function update_page($text, $edit_summary = false, $minor_edit = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
// Create the page if it doesn't exist
if ( !$this->page_exists )
{
if ( !$this->create_page() )
{
return false;
}
}
//
// Validation
//
$page_id = $db->escape($this->page_id);
$namespace = $db->escape($this->namespace);
$q = $db->sql_query('SELECT protected FROM ' . table_prefix . "pages WHERE urlname='$page_id' AND namespace='$namespace';");
if ( !$q )
$db->_die('PageProcess updating page content');
if ( $db->numrows() < 1 )
{
$this->raise_error($lang->get('editor_err_no_rows'));
return false;
}
// Do we have permission to edit the page?
if ( !$this->perms->get_permissions('edit_page') )
{
$this->raise_error($lang->get('editor_err_no_permission'));
return false;
}
list($protection) = $db->fetchrow_num();
$db->free_result();
if ( $protection == 1 )
{
// The page is protected - do we have permission to edit protected pages?
if ( !$this->perms->get_permissions('even_when_protected') )
{
$this->raise_error($lang->get('editor_err_page_protected'));
return false;
}
}
else if ( $protection == 2 )
{
// The page is semi-protected.
if (
( !$session->user_logged_in || // Is the user logged in?
( $session->user_logged_in && $session->reg_time + ( 4 * 86400 ) >= time() ) ) // If so, have they been registered for 4 days?
&& !$this->perms->get_permissions('even_when_protected') ) // And of course, is there an ACL that overrides semi-protection?
{
$this->raise_error($lang->get('editor_err_page_protected'));
return false;
}
}
//
// Protection validated; update page content
//
$text_undb = RenderMan::preprocess_text($text, false, false);
$text = $db->escape($text_undb);
$author = $db->escape($session->username);
$time = time();
$edit_summary = ( strval($edit_summary) === $edit_summary ) ? $db->escape($edit_summary) : '';
$minor_edit = ( $minor_edit ) ? '1' : '0';
$date_string = enano_date('d M Y h:i a');
// Insert log entry
$sql = 'INSERT INTO ' . table_prefix . "logs ( time_id, date_string, log_type, action, page_id, namespace, author, page_text, edit_summary, minor_edit )\n"
. " VALUES ( $time, '$date_string', 'page', 'edit', '{$this->page_id}', '{$this->namespace}', '$author', '$text', '$edit_summary', $minor_edit );";
if ( !$db->sql_query($sql) )
{
$this->raise_error($db->get_error());
return false;
}
// Update the master text entry
$sql = 'UPDATE ' . table_prefix . "page_text SET page_text = '$text' WHERE page_id = '{$this->page_id}' AND namespace = '{$this->namespace}';";
if ( !$db->sql_query($sql) )
{
$this->raise_error($db->get_error());
return false;
}
// Rebuild the search index
$paths->rebuild_page_index($this->page_id, $this->namespace);
$this->text_cache = $text;
return true;
}
/**
* Creates the page if it doesn't already exist.
* @param string Optional page title.
* @return bool True on success, false on failure.
*/
function create_page($title = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
// Do we have permission to create the page?
if ( !$this->perms->get_permissions('create_page') )
{
$this->raise_error($lang->get('pagetools_create_err_no_permission'));
return false;
}
// Does it already exist?
if ( $this->page_exists )
{
$this->raise_error($lang->get('pagetools_create_err_already_exists'));
return false;
}
// It's not in there. Perform validation.
// We can't create special, admin, or external pages.
if ( $this->namespace == 'Special' || $this->namespace == 'Admin' || $this->namespace == 'Anonymous' )
{
$this->raise_error($lang->get('pagetools_create_err_nodb_namespace'));
return false;
}
// Guess the proper title
$name = ( !empty($title) ) ? $title : dirtify_page_id($this->page_id);
// Check for the restricted Project: prefix
if ( substr($this->page_id, 0, 8) == 'Project:' )
{
$this->raise_error($lang->get('pagetools_create_err_reserved_prefix'));
return false;
}
// Validation successful - insert the page
$metadata = array(
'urlname' => $this->page_id,
'namespace' => $this->namespace,
'name' => $name,
'special' => 0,
'visible' => 1,
'comments_on' => 1,
'protected' => ( $this->namespace == 'System' ? 1 : 0 ),
'delvotes' => 0,
'delvote_ips' => serialize(array()),
'wiki_mode' => 2
);
$paths->add_page($metadata);
$page_id = $db->escape($this->page_id);
$namespace = $db->escape($this->namespace);
$name = $db->escape($name);
$protect = ( $this->namespace == 'System' ) ? '1' : '0';
$blank_array = $db->escape(serialize(array()));
// Query 1: Metadata entry
$q = $db->sql_query('INSERT INTO ' . table_prefix . "pages(name, urlname, namespace, protected, delvotes, delvote_ips, wiki_mode)\n"
. "VALUES ( '$name', '$page_id', '$namespace', $protect, 0, '$blank_array', 2 );");
if ( !$q )
$db->_die('PageProcessor page creation - metadata stage');
// Query 2: Text insertion
$q = $db->sql_query('INSERT INTO ' . table_prefix . "page_text(page_id, namespace, page_text)\n"
. "VALUES ( '$page_id', '$namespace', '' );");
if ( !$q )
$db->_die('PageProcessor page creation - text stage');
// Query 3: Log entry
$db->sql_query('INSERT INTO ' . table_prefix."logs(time_id, date_string, log_type, action, author, page_id, namespace)\n"
. " VALUES ( " . time() . ", '" . enano_date('d M Y h:i a') . "', 'page', 'create', \n"
. " '" . $db->escape($session->username) . "', '" . $db->escape($this->page_id) . "', '" . $this->namespace . "');");
if ( !$q )
$db->_die('PageProcessor page creation - logging stage');
// Page created. We're good!
return true;
}
/**
* Sets internal variables.
* @access private
*/
function _setup($page_id, $namespace, $revision_id)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$page_id_cleaned = sanitize_page_id($page_id);
$this->page_id = $page_id_cleaned;
$this->namespace = $namespace;
$this->revision_id = $revision_id;
$this->page_id_unclean = dirtify_page_id($page_id);
$this->perms = $session->fetch_page_acl( $page_id, $namespace );
// Exception for Admin: pages
if ( $this->namespace == 'Admin' )
{
$fname = "page_Admin_{$this->page_id}";
}
// Does the page "exist"?
$pathskey = $paths->nslist[$namespace] . $page_id_cleaned;
if ( $paths->page_id == $page_id && $paths->namespace == $namespace && !$paths->page_exists && ( $this->namespace != 'Admin' || ($this->namespace == 'Admin' && !function_exists($fname) ) ) )
{
$this->page_exists = false;
}
else if ( !isset( $paths->pages[ $pathskey ] ) && ( ( $this->namespace == 'Admin' && !function_exists($fname) ) || ( $this->namespace != 'Admin' ) ) )
{
$this->page_exists = false;
}
else
{
$this->page_exists = true;
}
// Compatibility with older databases
if ( strstr($this->page_id, '.2e') && !$this->page_exists )
{
$page_id = str_replace('.2e', '.', $page_id);
if ( $paths->page_id == $page_id && $paths->namespace == $namespace && !$paths->page_exists && ( $this->namespace != 'Admin' || ($this->namespace == 'Admin' && !function_exists($fname) ) ) )
{
$this->page_exists = false;
}
else if ( !isset( $paths->pages[ $paths->nslist[$namespace] . $page_id ] ) && ( $this->namespace == 'Admin' && !function_exists($fname) ) )
{
$this->page_exists = false;
}
else
{
$this->page_exists = true;
}
}
$this->title = get_page_title_ns($this->page_id, $this->namespace);
profiler_log("PageProcessor [{$this->namespace}:{$this->page_id}]: Ran _setup()");
}
/**
* Renders it all in one go, and echoes it out. This assumes that the text is in the DB.
* @access private
*/
function render($incl_inner_headers = true, $_errormsg = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
$text = $this->fetch_text();
$text = preg_replace('/([\s]*)__NOBREADCRUMBS__([\s]*)/', '', $text);
$text = preg_replace('/([\s]*)__NOTOC__([\s]*)/', '', $text);
$redir_enabled = false;
if ( preg_match('/^#redirect \[\[([^\]]+?)\]\]/i', $text, $match ) )
{
$redir_enabled = true;
$oldtarget = RenderMan::strToPageID($match[1]);
$oldtarget[0] = sanitize_page_id($oldtarget[0]);
$url = makeUrlNS($oldtarget[1], $oldtarget[0], false, true);
$page_id_key = $paths->nslist[ $oldtarget[1] ] . $oldtarget[0];
$page_data = $paths->pages[$page_id_key];
$title = ( isset($page_data['name']) ) ? $page_data['name'] : $paths->nslist[$oldtarget[1]] . htmlspecialchars( str_replace('_', ' ', dirtify_page_id( $oldtarget[0] ) ) );
if ( !isset($page_data['name']) )
{
$cls = 'class="wikilink-nonexistent"';
}
else
{
$cls = '';
}
$a = '<a ' . $cls . ' href="' . $url . '">' . $title . '</a>';
$redir_html = '<br /><div class="mdg-infobox">
<table border="0" width="100%" cellspacing="0" cellpadding="0">
<tr>
<td valign="top">
<img alt="Cute wet-floor icon" src="'.scriptPath.'/images/redirector.png" />
</td>
<td valign="top" style="padding-left: 10px;">
' . $lang->get('page_msg_this_is_a_redirector', array( 'redirect_target' => $a )) . '
</td>
</tr>
</table>
</div>
<br />
<hr style="margin-left: 1em; width: 200px;" />';
$text = str_replace($match[0], '', $text);
$text = trim($text);
}
$template->tpl_strings['PAGE_NAME'] = htmlspecialchars( $this->title );
$this->header();
$this->do_breadcrumbs();
if ( $_errormsg )
{
echo $_errormsg;
}
if ( $incl_inner_headers )
{
if ( count($this->redirect_stack) > 0 )
{
$stack = array_reverse($this->redirect_stack);
foreach ( $stack as $oldtarget )
{
$url = makeUrlNS($oldtarget[1], $oldtarget[0], 'redirect=no', true);
$page_id_key = $paths->nslist[ $oldtarget[1] ] . $oldtarget[0];
$page_data = $paths->pages[$page_id_key];
$title = ( isset($page_data['name']) ) ? $page_data['name'] : $paths->nslist[$oldtarget[1]] . htmlspecialchars( str_replace('_', ' ', dirtify_page_id( $oldtarget[0] ) ) );
$a = '<a href="' . $url . '">' . $title . '</a>';
echo '<small>' . $lang->get('page_msg_redirected_from', array('from' => $a)) . '<br /></small>';
}
}
display_page_headers();
}
if ( $this->revision_id )
{
echo '<div class="info-box" style="margin-left: 0; margin-top: 5px;">
<b>' . $lang->get('page_msg_archived_title') . '</b><br />
' . $lang->get('page_msg_archived_body', array(
'archive_date' => enano_date('F d, Y', $this->revision_id),
'archive_time' => enano_date('h:i a', $this->revision_id),
'current_link' => makeUrlNS($this->namespace, $this->page_id),
'restore_link' => makeUrlNS($this->namespace, $this->page_id, 'do=rollback&id='.$this->revision_id),
'restore_onclick' => 'ajaxRollback(\''.$this->revision_id.'\'); return false;',
)) . '
</div>
<br />';
}
if ( $redir_enabled )
{
echo $redir_html;
}
$code = $plugins->setHook('pageprocess_render_head');
foreach ( $code as $cmd )
{
eval($cmd);
}
if ( $incl_inner_headers )
{
$text = '?>' . RenderMan::render($text);
}
else
{
$text = '?>' . $text;
$text = preg_replace('/<nowiki>(.*?)<\/nowiki>/s', '\\1', $text);
}
// echo('<pre>'.htmlspecialchars($text).'</pre>');
eval ( $text );
$code = $plugins->setHook('pageprocess_render_tail');
foreach ( $code as $cmd )
{
eval($cmd);
}
if ( $incl_inner_headers )
{
display_page_footers();
}
$this->footer();
}
/**
* Sends the page header, dependent on, of course, whether we're supposed to.
*/
function header()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( $this->send_headers )
$template->header();
}
/**
* Sends the page footer, dependent on, of course, whether we're supposed to.
*/
function footer()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( $this->send_headers )
$template->footer();
}
/**
* Fetches the raw, unfiltered page text.
* @access public
*/
function fetch_text()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !empty($this->text_cache) )
{
return $this->text_cache;
}
if ( $this->revision_id > 0 && is_int($this->revision_id) )
{
$q = $db->sql_query('SELECT page_text, char_tag, date_string FROM '.table_prefix.'logs WHERE page_id=\'' . $this->page_id . '\' AND namespace=\'' . $this->namespace . '\' AND time_id=' . $this->revision_id . ';');
if ( !$q )
{
$this->send_error('Error during SQL query.', true);
}
if ( $db->numrows() < 1 )
{
// Compatibility fix for old pages with dots in the page ID
if ( strstr($this->page_id, '.2e') )
{
$db->free_result();
$page_id = str_replace('.2e', '.', $this->page_id);
$q = $db->sql_query('SELECT page_text, char_tag, date_string FROM '.table_prefix.'logs WHERE page_id=\'' . $page_id . '\' AND namespace=\'' . $this->namespace . '\' AND time_id=' . $this->revision_id . ';');
if ( !$q )
{
$this->send_error('Error during SQL query.', true);
}
if ( $db->numrows() < 1 )
{
$this->page_exists = false;
return 'err_no_text_rows';
}
}
else
{
$this->page_exists = false;
return 'err_no_text_rows';
}
}
else
{
$row = $db->fetchrow();
}
$db->free_result();
}
else
{
$q = $db->sql_query('SELECT page_text, char_tag FROM '.table_prefix.'page_text WHERE page_id=\'' . $this->page_id . '\' AND namespace=\'' . $this->namespace . '\';');
if ( !$q )
{
$this->send_error('Error during SQL query.', true);
}
if ( $db->numrows() < 1 )
{
// Compatibility fix for old pages with dots in the page ID
if ( strstr($this->page_id, '.2e') )
{
$db->free_result();
$page_id = str_replace('.2e', '.', $this->page_id);
$q = $db->sql_query('SELECT page_text, char_tag FROM '.table_prefix.'page_text WHERE page_id=\'' . $page_id . '\' AND namespace=\'' . $this->namespace . '\';');
if ( !$q )
{
$this->send_error('Error during SQL query.', true);
}
if ( $db->numrows() < 1 )
{
$this->page_exists = false;
return 'err_no_text_rows';
}
}
else
{
$this->page_exists = false;
return 'err_no_text_rows';
}
}
$row = $db->fetchrow();
$db->free_result();
}
if ( !empty($row['char_tag']) )
{
// This page text entry uses the old text-escaping format
$from = array(
"{APOS:{$row['char_tag']}}",
"{QUOT:{$row['char_tag']}}",
"{SLASH:{$row['char_tag']}}"
);
$to = array("'", '"', '\\');
$row['page_text'] = str_replace($from, $to, $row['page_text']);
}
$this->text_cache = $row['page_text'];
return $row['page_text'];
}
/**
* Handles the extra overhead required for user pages.
* @access private
*/
function _handle_userpage()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $email;
global $lang;
$page_urlname = dirtify_page_id($this->page_id);
if ( $this->page_id == $paths->page_id && $this->namespace == $paths->namespace )
{
$page_name = ( isset($paths->cpage['name']) ) ? $paths->cpage['name'] : $this->page_id;
}
else
{
$page_name = ( isset($paths->pages[$this->page_id]) ) ? $paths->pages[$this->page_id]['name'] : $this->page_id;
}
$target_username = strtr($page_urlname,
Array(
'_' => ' ',
'<' => '<',
'>' => '>'
));
$target_username = preg_replace('/^' . str_replace('/', '\\/', preg_quote($paths->nslist['User'])) . '/', '', $target_username);
list($target_username) = explode('/', $target_username);
if ( ( $page_name == str_replace('_', ' ', $this->page_id) || $page_name == $paths->nslist['User'] . str_replace('_', ' ', $this->page_id) ) || !$this->page_exists )
{
$page_name = $lang->get('userpage_page_title', array('username' => htmlspecialchars($target_username)));
}
else
{
// User has a custom title for their userpage
$page_name = $paths->pages[ $paths->nslist[$this->namespace] . $this->page_id ]['name'];
}
$template->tpl_strings['PAGE_NAME'] = htmlspecialchars($page_name);
$q = $db->sql_query('SELECT u.username, u.user_id AS authoritative_uid, u.real_name, u.email, u.reg_time, u.user_has_avatar, u.avatar_type, x.*, COUNT(c.comment_id) AS n_comments
FROM '.table_prefix.'users u
LEFT JOIN '.table_prefix.'users_extra AS x
ON ( u.user_id = x.user_id OR x.user_id IS NULL )
LEFT JOIN '.table_prefix.'comments AS c
ON ( ( c.user_id=u.user_id AND c.name=u.username AND c.approved=1 ) OR ( c.comment_id IS NULL AND c.approved IS NULL ) )
WHERE u.username=\'' . $db->escape($target_username) . '\'
GROUP BY u.username, u.user_id, u.real_name, u.email, u.reg_time, u.user_has_avatar, u.avatar_type, x.user_id, x.user_aim, x.user_yahoo, x.user_msn, x.user_xmpp, x.user_homepage, x.user_location, x.user_job, x.user_hobbies, x.email_public;');
if ( !$q )
$db->_die();
$user_exists = true;
if ( $db->numrows() < 1 )
{
$user_exists = false;
}
else
{
$userdata = $db->fetchrow();
if ( $userdata['authoritative_uid'] == 1 )
{
// Hide data for anonymous user
$user_exists = false;
unset($userdata);
}
}
$this->header();
// if ( $send_headers )
// {
// display_page_headers();
// }
// Start left sidebar: basic user info, latest comments
if ( $user_exists ):
echo '<table border="0" cellspacing="4" cellpadding="0" style="width: 100%;">';
echo '<tr><td style="width: 150px;" valign="top">';
echo '<div class="tblholder">
<table border="0" cellspacing="1" cellpadding="4">';
//
// Main part of sidebar
//
// Basic user info
echo '<tr><th class="subhead">' . $lang->get('userpage_heading_basics', array('username' => htmlspecialchars($target_username))) . '</th></tr>';
if ( $userdata['user_has_avatar'] == '1' )
{
echo '<tr><td class="row1" style="text-align: center;"><img alt="' . $lang->get('usercp_avatar_image_alt', array('username' => $userdata['username'])) . '" src="' . make_avatar_url(intval($userdata['authoritative_uid']), $userdata['avatar_type']) . '" /></td></tr>';
}
echo '<tr><td class="row3">' . $lang->get('userpage_lbl_joined') . ' ' . enano_date('F d, Y h:i a', $userdata['reg_time']) . '</td></tr>';
echo '<tr><td class="row1">' . $lang->get('userpage_lbl_num_comments') . ' ' . $userdata['n_comments'] . '</td></tr>';
if ( !empty($userdata['real_name']) )
{
echo '<tr><td class="row3">' . $lang->get('userpage_lbl_real_name') . ' ' . $userdata['real_name'] . '</td></tr>';
}
// Administer user button
if ( $session->user_level >= USER_LEVEL_ADMIN )
{
echo '<tr><td class="row1"><a href="' . makeUrlNS('Special', 'Administration', 'module=' . $paths->nslist['Admin'] . 'UserManager&src=get&user=' . urlencode($target_username), true) . '" onclick="ajaxAdminUser(\'' . addslashes($target_username) . '\'); return false;">' . $lang->get('userpage_btn_administer_user') . '</a></td></tr>';
}
// Comments
echo '<tr><th class="subhead">' . $lang->get('userpage_heading_comments', array('username' => htmlspecialchars($target_username))) . '</th></tr>';
$q = $db->sql_query('SELECT page_id, namespace, subject, time FROM '.table_prefix.'comments WHERE name=\'' . $db->escape($target_username) . '\' AND user_id=' . $userdata['authoritative_uid'] . ' AND approved=1 ORDER BY time DESC LIMIT 5;');
if ( !$q )
$db->_die();
$comments = Array();
$no_comments = false;
if ( $row = $db->fetchrow() )
{
do
{
$row['time'] = enano_date('F d, Y', $row['time']);
$comments[] = $row;
}
while ( $row = $db->fetchrow() );
}
else
{
$no_comments = true;
}
echo '<tr><td class="row3">';
echo '<div style="border: 1px solid #000000; padding: 0px; margin: 0; max-height: 200px; clip: rect(0px,auto,auto,0px); overflow: auto; background-color: transparent;" class="tblholder">';
echo '<table border="0" cellspacing="1" cellpadding="4">';
$class = 'row1';
$tpl = '<tr>
<td class="{CLASS}">
<a href="{PAGE_LINK}" <!-- BEGINNOT page_exists -->class="wikilink-nonexistent"<!-- END page_exists -->>{PAGE}</a><br />
<small>{lang:userpage_comments_lbl_posted} {DATE}<br /></small>
<b><a href="{COMMENT_LINK}">{SUBJECT}</a></b>
</td>
</tr>';
$parser = $template->makeParserText($tpl);
if ( count($comments) > 0 )
{
foreach ( $comments as $comment )
{
$c_page_id = $paths->nslist[ $comment['namespace'] ] . sanitize_page_id($comment['page_id']);
if ( isset($paths->pages[ $c_page_id ]) )
{
$parser->assign_bool(array(
'page_exists' => true
));
$page_title = htmlspecialchars($paths->pages[ $c_page_id ]['name']);
}
else
{
$parser->assign_bool(array(
'page_exists' => false
));
$page_title = htmlspecialchars(dirtify_page_id($c_page_id));
}
$parser->assign_vars(array(
'CLASS' => $class,
'PAGE_LINK' => makeUrlNS($comment['namespace'], sanitize_page_id($comment['page_id'])),
'PAGE' => $page_title,
'SUBJECT' => $comment['subject'],
'DATE' => $comment['time'],
'COMMENT_LINK' => makeUrlNS($comment['namespace'], sanitize_page_id($comment['page_id']), 'do=comments', true)
));
$class = ( $class == 'row3' ) ? 'row1' : 'row3';
echo $parser->run();
}
}
else
{
echo '<tr><td class="' . $class . '">' . $lang->get('userpage_msg_no_comments') . '</td></tr>';
}
echo '</table>';
echo '</div>';
echo '</td></tr>';
$code = $plugins->setHook('userpage_sidebar_left');
foreach ( $code as $cmd )
{
eval($cmd);
}
echo ' </table>
</div>';
echo '</td><td valign="top" style="padding: 0 10px;">';
else:
// Nothing for now
endif;
// User's own content
$send_headers = $this->send_headers;
$this->send_headers = false;
if ( $this->page_exists )
{
$this->render();
}
else
{
$this->err_page_not_existent(true);
}
// Right sidebar
if ( $user_exists ):
echo '</td><td style="width: 150px;" valign="top">';
echo '<div class="tblholder">
<table border="0" cellspacing="1" cellpadding="4">';
//
// Main part of sidebar
//
// Contact information
echo '<tr><th class="subhead">' . $lang->get('userpage_heading_contact') . '</th></tr>';
$class = 'row3';
if ( $userdata['email_public'] == 1 )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
$email_link = $email->encryptEmail($userdata['email']);
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_email') . ' ' . $email_link . '</td></tr>';
}
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
if ( $session->user_logged_in )
{
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_btn_send_pm', array('username' => htmlspecialchars($target_username), 'pm_link' => makeUrlNS('Special', 'PrivateMessages/Compose/to/' . $this->page_id, false, true))) . '</td></tr>';
}
else
{
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_btn_send_pm_guest', array('username' => htmlspecialchars($target_username), 'login_flags' => 'href="' . makeUrlNS('Special', 'Login/' . $paths->nslist[$this->namespace] . $this->page_id) . '" onclick="ajaxStartLogin(); return false;"')) . '</td></tr>';
}
if ( !empty($userdata['user_aim']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_aim') . ' ' . $userdata['user_aim'] . '</td></tr>';
}
if ( !empty($userdata['user_yahoo']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_yim') . ' ' . $userdata['user_yahoo'] . '</td></tr>';
}
if ( !empty($userdata['user_msn']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
$email_link = $email->encryptEmail($userdata['user_msn']);
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_wlm') . ' ' . $email_link . '</td></tr>';
}
if ( !empty($userdata['user_xmpp']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
$email_link = $email->encryptEmail($userdata['user_xmpp']);
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_xmpp') . ' ' . $email_link . '</td></tr>';
}
// Real life
echo '<tr><th class="subhead">' . $lang->get('userpage_heading_real_life', array('username' => htmlspecialchars($target_username))) . '</th></tr>';
if ( !empty($userdata['user_location']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_location') . ' ' . $userdata['user_location'] . '</td></tr>';
}
if ( !empty($userdata['user_job']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_job') . ' ' . $userdata['user_job'] . '</td></tr>';
}
if ( !empty($userdata['user_hobbies']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_lbl_hobbies') . ' ' . $userdata['user_hobbies'] . '</td></tr>';
}
if ( empty($userdata['user_location']) && empty($userdata['user_job']) && empty($userdata['user_hobbies']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . $lang->get('userpage_msg_no_contact_info', array('username' => htmlspecialchars($target_username))) . '</td></tr>';
}
$code = $plugins->setHook('userpage_sidebar_right');
foreach ( $code as $cmd )
{
eval($cmd);
}
echo ' </table>
</div>';
echo '</tr></table>';
else:
if ( !is_valid_ip($target_username) )
{
echo '<p>' . $lang->get('userpage_msg_user_not_exist', array('username' => htmlspecialchars($target_username))) . '</p>';
}
endif;
// if ( $send_headers )
// {
// display_page_footers();
// }
$this->send_headers = $send_headers;
unset($send_headers);
$this->footer();
}
/**
* Pushes to the redirect stack and resets the instance. This depends on the page ID and namespace already being validated and sanitized, and does not check the size of the redirect stack.
* @param string Page ID to redirect to
* @param string Namespace to redirect to
* @access private
*/
function _handle_redirect($page_id, $namespace)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
$arr_pid = array($this->page_id, $this->namespace);
if ( $namespace == 'Special' || $namespace == 'Admin' )
{
return $lang->get('page_err_redirect_to_special');
}
$looped = false;
foreach ( $this->redirect_stack as $page )
{
if ( $page[0] == $arr_pid[0] && $page[1] == $arr_pid[1] )
{
$looped = true;
break;
}
}
if ( $looped )
{
return $lang->get('page_err_redirect_infinite_loop');
}
$page_id_key = $paths->nslist[ $namespace ] . sanitize_page_id($page_id);
if ( !isset($paths->pages[$page_id_key]) )
{
return $lang->get('page_err_redirect_to_nonexistent');
}
$this->redirect_stack[] = $arr_pid;
// Nuke the text cache to avoid infinite loops, gah...
$this->text_cache = '';
$this->_setup($page_id, $namespace, 0);
$this->send();
return true;
}
/**
* Send the error message to the user that the access to this page is denied.
* @access private
*/
function err_access_denied()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
global $email;
// Log it for crying out loud
$q = $db->sql_query('INSERT INTO '.table_prefix.'logs(log_type,action,time_id,date_string,author,edit_summary,page_text) VALUES(\'security\', \'illegal_page\', '.time().', \''.enano_date('d M Y h:i a').'\', \''.$db->escape($session->username).'\', \''.$db->escape($_SERVER['REMOTE_ADDR']).'\', \'' . $db->escape(serialize(array($this->page_id, $this->namespace))) . '\')');
$ob = '';
//$template->tpl_strings['PAGE_NAME'] = 'Access denied';
$template->tpl_strings['PAGE_NAME'] = htmlspecialchars( $this->title );
if ( $this->send_headers )
{
$ob .= $template->getHeader();
}
if ( count($this->redirect_stack) > 0 )
{
$stack = array_reverse($this->redirect_stack);
foreach ( $stack as $oldtarget )
{
$url = makeUrlNS($oldtarget[1], $oldtarget[0], 'redirect=no', true);
$page_id_key = $paths->nslist[ $oldtarget[1] ] . $oldtarget[0];
$page_data = $paths->pages[$page_id_key];
$title = ( isset($page_data['name']) ) ? $page_data['name'] : $paths->nslist[$oldtarget[1]] . htmlspecialchars( str_replace('_', ' ', dirtify_page_id( $oldtarget[0] ) ) );
$a = '<a href="' . $url . '">' . $title . '</a>';
$url = makeUrlNS($this->namespace, $this->page_id, 'redirect=no', true);
$page_id_key = $paths->nslist[ $this->namespace ] . $this->page_id;
$page_data = $paths->pages[$page_id_key];
$title = ( isset($page_data['name']) ) ? $page_data['name'] : $paths->nslist[$this->namespace] . htmlspecialchars( str_replace('_', ' ', dirtify_page_id( $this->page_id ) ) );
$b = '<a href="' . $url . '">' . $title . '</a>';
$ob .= '<small>' . $lang->get('page_msg_redirected_from_to', array('from' => $a, 'to' => $b)) . '<br /></small>';
}
}
$email_link = $email->encryptEmail(getConfig('contact_email'), '', '', $lang->get('page_err_access_denied_siteadmin'));
$ob .= "<h3>" . $lang->get('page_err_access_denied_title') . "</h3>";
$ob .= "<p>" . $lang->get('page_err_access_denied_body', array('site_administration' => $email_link)) . "</p>";
if ( $this->send_headers )
{
$ob .= $template->getFooter();
}
echo $ob;
}
/**
* Inform the user of an incorrect or absent password
* @access private
*/
function err_wrong_password()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
$title = 'Password required';
$message = ( empty($this->password) ) ?
'<p>' . $lang->get('page_msg_passrequired') . '</p>' :
'<p>' . $lang->get('page_msg_pass_wrong') . '</p>';
$message .= '<form action="' . makeUrlNS($this->namespace, $this->page_id) . '" method="post">
<p>
<label>' . $lang->get('page_lbl_password') . ' <input name="pagepass" type="password" /></label> <input type="submit" value="Submit" />
</p>
</form>';
if ( $this->send_headers )
{
$template->tpl_strings['PAGE_NAME'] = $title;
$template->header();
echo "$message";
$template->footer();
}
else
{
echo "<h2>$title</h2>
$message";
}
}
/**
* Send the error message to the user complaining that there weren't any rows.
* @access private
*/
function err_no_rows()
{
global $db, $session, $paths, $template, $plugins; // Common objects
$title = 'No text rows';
$message = 'While the page\'s existence was verified, there were no rows in the database that matched the query for the text. This may indicate a bug with the software; ask the webmaster for more information. The offending query was:<pre>' . $db->latest_query . '</pre>';
if ( $this->send_headers )
{
$template->tpl_strings['PAGE_NAME'] = $title;
$template->header();
echo "<p>$message</p>";
$template->footer();
}
else
{
echo "<h2>$title</h2>
<p>$message</p>";
}
}
/**
* Tell the user the page doesn't exist, and present them with their options.
* @access private
*/
function err_page_not_existent($userpage = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
header('HTTP/1.1 404 Not Found');
$this->header();
$this->do_breadcrumbs();
$msg = $paths->sysmsg('Page_not_found');
if ( $msg )
{
$msg = RenderMan::render($msg);
eval( '?>' . $msg );
}
else
{
if ( $userpage )
{
echo '<h3>' . $lang->get('page_msg_404_title') . '</h3>
<p>' . $lang->get('page_msg_404_body_userpage');
}
else
{
echo '<h3>' . $lang->get('page_msg_404_title') . '</h3>
<p>' . $lang->get('page_msg_404_body');
}
if ( $session->get_permissions('create_page') )
{
echo ' ' . $lang->get('page_msg_404_create', array(
'create_flags' => 'href="'.makeUrlNS($this->namespace, $this->page_id, 'do=edit', true).'" onclick="ajaxEditor(); return false;"',
'mainpage_link' => makeUrl(getConfig('main_page'), false, true)
));
}
else
{
echo ' ' . $lang->get('page_msg_404_gohome', array(
'mainpage_link' => makeUrl(getConfig('main_page'), false, true)
));
}
echo '</p>';
if ( $session->get_permissions('history_rollback') )
{
$e = $db->sql_query('SELECT * FROM ' . table_prefix . 'logs WHERE action=\'delete\' AND page_id=\'' . $this->page_id . '\' AND namespace=\'' . $this->namespace . '\' ORDER BY time_id DESC;');
if ( !$e )
{
$db->_die('The deletion log could not be selected.');
}
if ( $db->numrows() > 0 )
{
$r = $db->fetchrow();
echo '<p>' . $lang->get('page_msg_404_was_deleted', array(
'delete_time' => enano_date('d M Y h:i a', $r['time_id']),
'delete_reason' => htmlspecialchars($r['edit_summary']),
'rollback_flags' => 'href="'.makeUrl($paths->page, 'do=rollback&id='.$r['time_id']).'" onclick="ajaxRollback(\''.$r['time_id'].'\'); return false;"'
))
. '</p>';
if ( $session->user_level >= USER_LEVEL_ADMIN )
{
echo '<p>' . $lang->get('page_msg_404_admin_opts', array(
'detag_link' => makeUrl($paths->page, 'do=detag', true)
))
. '</p>';
}
}
$db->free_result();
}
echo '<p>
' . $lang->get('page_msg_404_http_response') . '
</p>';
}
$this->footer();
}
/**
* Echoes out breadcrumb data, if appropriate.
* @access private
*/
function do_breadcrumbs()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( strpos($this->text_cache, '__NOBREADCRUMBS__') !== false )
return false;
$breadcrumb_data = explode('/', $this->page_id);
if ( count($breadcrumb_data) > 1 )
{
echo '<!-- Start breadcrumbs -->
<div class="breadcrumbs">
';
foreach ( $breadcrumb_data as $i => $higherpage )
{
$higherpage = $paths->nslist[$this->namespace] . sanitize_page_id(implode('/', array_slice($breadcrumb_data, 0, ($i+1))));
if ( ($i + 1) == count($breadcrumb_data) )
{
$title = get_page_title($higherpage, false);
if ( !$this->page_exists )
{
$title = explode('/', $title);
$title = array_reverse($title);
$title = $title[0];
}
echo htmlspecialchars($title);
break;
}
else if ( isPage($higherpage) )
{
$title = get_page_title($higherpage, false);
echo '<a href="' . makeUrl($higherpage, false, true) . '">' . htmlspecialchars($title) . '</a>';
}
else
{
$title = get_page_title($higherpage, false);
$title = explode('/', $title);
$title = array_reverse($title);
$title = $title[0];
echo '<a href="' . makeUrl($higherpage, false, true) . '" class="wikilink-nonexistent">' . htmlspecialchars($title) . '</a>';
}
echo ' » ';
}
echo '</div>
<!-- End breadcrumbs -->
';
}
}
/**
* Send an error message and die. For debugging or critical technical errors only - nothing that would under normal circumstances be shown to the user.
* @var string Error message
* @var bool If true, send DBAL's debugging information as well
*/
function send_error($message, $sql = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
$content = "<p>$message</p>";
$template->tpl_strings['PAGE_NAME'] = $lang->get('page_msg_general_error');
if ( $this->debug['works'] )
{
$content .= $this->debug['backtrace'];
}
header('HTTP/1.1 500 Internal Server Error');
$template->header();
echo $content;
$template->footer();
$db->close();
exit;
}
/**
* Raises an error.
* @param string Error string
*/
function raise_error($string)
{
if ( !is_string($string) )
return false;
$this->_errors[] = $string;
}
/**
* Retrieves the latest error from the error stack and returns it ('pops' the error stack)
* @return string
*/
function pop_error()
{
if ( count($this->_errors) < 1 )
return false;
return array_pop($this->_errors);
}
} // class PageProcessor
?>