<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.1.6 (Caoineag beta 1)
* Copyright (C) 2006-2008 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.
*/
/**
* The default handler for namespaces. Basically fetches the page text from the database. Other namespaces should extend this class.
* @package Enano
* @subpackage PageHandler
* @author Dan Fuhry <dan@enanocms.org>
* @license GNU General Public License <http://www.gnu.org/licenses/gpl-2.0.html>
*/
class Namespace_Default
{
/**
* Page ID
* @var string
*/
public $page_id;
/**
* Namespace
* @var string
*/
public $namespace;
/**
* Local copy of the page text
*/
public $text_cache;
/**
* Revision ID to send. If 0, the latest revision.
* @var int
*/
public $revision_id = 0;
/**
* Tracks whether the page exists
* @var bool
*/
public $exists = false;
/**
* Page title
* @var string
*/
public $title = '';
/**
* Constructor.
*/
public function __construct($page_id, $namespace, $revision_id = 0)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$this->page_id = sanitize_page_id($page_id);
$this->namespace = $namespace;
$this->revision_id = intval($revision_id);
// only do this if calling from the (very heavily feature filled) abstract
// this will still be called if you're using your own handler but not replacing the constructor
if ( __CLASS__ == 'Namespace_Default' )
{
$this->exists = false;
// NOTE! These should already be WELL sanitized before we reach this stage.
$q = $db->sql_query('SELECT name FROM ' . table_prefix . "pages WHERE urlname = '$this->page_id' AND namespace = '$this->namespace';");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
// we still have a chance... some older databases don't do dots in the page title right
if ( strstr(dirtify_page_id($this->page_id), '.') )
{
$page_id = str_replace('.', '.2e', $page_id);
$q = $db->sql_query('SELECT name FROM ' . table_prefix . "pages WHERE urlname = '$page_id' AND namespace = '$this->namespace';");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
$this->title = $paths->nslist[$namespace] . dirtify_page_id($page_id);
}
else
{
list($this->title) = $db->fetchrow_num();
$this->exists = true;
$this->page_id = $page_id;
}
}
else
{
$this->title = $paths->nslist[$namespace] . dirtify_page_id($page_id);
}
}
else
{
list($this->title) = $db->fetchrow_num();
$this->exists = true;
}
$db->free_result();
}
}
/**
* Pulls the page's actual text from the database.
*/
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, time_id FROM '.table_prefix.'logs WHERE log_type=\'page\' AND action=\'edit\' AND page_id=\'' . $this->page_id . '\' AND namespace=\'' . $this->namespace . '\' AND log_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, time_id FROM '.table_prefix.'logs WHERE log_type=\'page\' AND action=\'edit\' AND page_id=\'' . $page_id . '\' AND namespace=\'' . $this->namespace . '\' AND log_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 = $db->sql_query('SELECT t.page_text, t.char_tag, l.time_id FROM '.table_prefix."page_text AS t\n"
. " LEFT JOIN " . table_prefix . "logs AS l\n"
. " ON ( l.page_id = t.page_id AND l.namespace = t.namespace )\n"
. " WHERE t.page_id='$this->page_id' AND t.namespace='$this->namespace'\n"
. " ORDER BY l.time_id DESC LIMIT 1;");
if ( !$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 = $row['page_text'];
if ( isset($row['time_id']) )
{
$this->revision_time = intval($row['time_id']);
}
return $row['page_text'];
}
/**
* Send the page.
*/
public function send()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $output;
$output->add_before_footer($this->display_categories());
if ( $this->exists )
$this->send_from_db();
else
{
// This is the DEPRECATED way to extend namespaces. It's left in only for compatibility with older plugins.
ob_start();
$code = $plugins->setHook('page_not_found');
foreach ( $code as $cmd )
{
eval($cmd);
}
$c = ob_get_contents();
if ( !empty($c) )
{
ob_end_clean();
echo $c;
}
else
{
$output->header();
$this->error_404();
$output->footer();
}
}
}
/**
* The "real" send-the-page function. The reason for this is so other namespaces can re-use the code
* to fetch the page from the DB while being able to install their own wrappers.
*/
public function send_from_db($incl_inner_headers = true, $send_headers = true)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
global $output;
$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);
}
if ( $send_headers )
{
$output->set_title($this->title);
$output->header();
}
$this->do_breadcrumbs();
if ( $incl_inner_headers )
{
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_time),
'archive_time' => enano_date('h:i a', $this->revision_time),
'current_link' => makeUrlNS($this->namespace, $this->page_id),
'restore_link' => makeUrlNS($this->namespace, $this->page_id, 'do=edit&revid='.$this->revision_id),
'restore_onclick' => 'ajaxEditor(\''.$this->revision_id.'\'); return false;',
)) . '
</div>';
$q = $db->sql_query('SELECT page_format FROM ' . table_prefix . "logs WHERE log_id = {$this->revision_id};");
if ( !$q )
$db->_die();
list($page_format) = $db->fetchrow_num();
$db->free_result();
}
else
{
$pathskey = $paths->nslist[ $this->namespace ] . $paths->page_id;
$page_format = $paths->pages[$pathskey]['page_format'];
}
if ( $redir_enabled )
{
echo $redir_html;
}
$code = $plugins->setHook('pageprocess_render_head');
foreach ( $code as $cmd )
{
eval($cmd);
}
if ( $incl_inner_headers )
{
if ( $page_format === 'wikitext' )
{
$text = '?>' . RenderMan::render($text);
}
else
{
// Page format is XHTML. This means we want to disable functionality that MCE takes care of, while still retaining
// the ability to wikilink, the ability to use images, etc. Basically, RENDER_INLINEONLY disables all behavior in
// the rendering engine/Text_Wiki that conflicts with MCE.
$text = '?>' . RenderMan::render($text, RENDER_WIKI_DEFAULT | RENDER_INLINEONLY);
}
}
else
{
$text = '?>' . $text;
$text = preg_replace('/<nowiki>(.*?)<\/nowiki>/s', '\\1', $text);
}
eval ( $text );
$code = $plugins->setHook('pageprocess_render_tail');
foreach ( $code as $cmd )
{
eval($cmd);
}
if ( $incl_inner_headers )
{
display_page_footers();
}
if ( $send_headers )
$output->footer();
}
/**
* Echoes out breadcrumb data, if appropriate.
* @access private
*/
function do_breadcrumbs()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
if ( strpos($this->text_cache, '__NOBREADCRUMBS__') !== false )
return false;
$mode = getConfig('breadcrumb_mode');
if ( $mode == 'never' )
// Breadcrumbs are disabled
return true;
// Minimum depth for breadcrumb display
$threshold = ( $mode == 'always' ) ? 0 : 1;
$breadcrumb_data = explode('/', $this->page_id);
if ( count($breadcrumb_data) > $threshold )
{
// If we're not on a subpage of the main page, add "Home" to the list
$show_home = false;
if ( $mode == 'always' )
{
$show_home = true;
}
echo '<!-- Start breadcrumbs -->
<div class="breadcrumbs">
';
if ( $show_home )
{
// Display the "home" link first.
$pathskey = $paths->nslist[ $this->namespace ] . $this->page_id;
if ( $pathskey !== get_main_page() )
echo '<a href="' . makeUrl(get_main_page(), false, true) . '">';
echo $lang->get('onpage_btn_breadcrumbs_home');
if ( $pathskey !== get_main_page() )
echo '</a>';
}
foreach ( $breadcrumb_data as $i => $crumb )
{
$cumulative = implode('/', array_slice($breadcrumb_data, 0, ( $i + 1 )));
if ( $show_home && $cumulative === get_main_page() )
continue;
if ( $show_home || $i > 0 )
echo ' » ';
$title = ( isPage($cumulative) ) ? get_page_title($cumulative) : get_page_title($crumb);
if ( $i + 1 == count($breadcrumb_data) )
{
echo htmlspecialchars($title);
}
else
{
$exists = ( isPage($cumulative) ) ? '' : ' class="wikilink-nonexistent"';
echo '<a href="' . makeUrl($cumulative, false, true) . '"' . $exists . '>' . htmlspecialchars($title) . '</a>';
}
}
echo '</div>
<!-- End breadcrumbs -->
';
}
}
public function error_404($userpage = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang, $output;
@header('HTTP/1.1 404 Not Found');
$msg = ( $pp = $paths->sysmsg('Page_not_found') ) ? $pp : '{STANDARD404}';
$standard_404 = '';
if ( $userpage )
{
$standard_404 .= '<h3>' . $lang->get('page_msg_404_title_userpage') . '</h3>
<p>' . $lang->get('page_msg_404_body_userpage');
}
else
{
$standard_404 .= '<h3>' . $lang->get('page_msg_404_title') . '</h3>
<p>' . $lang->get('page_msg_404_body');
}
if ( $session->get_permissions('create_page') )
{
$standard_404 .= ' ' . $lang->get('page_msg_404_create', array(
'create_flags' => 'href="'.makeUrlNS($this->namespace, $this->page_id, 'do=edit', true).'" onclick="ajaxEditor(); return false;"',
'mainpage_link' => makeUrl(get_main_page(), false, true)
));
}
else
{
$standard_404 .= ' ' . $lang->get('page_msg_404_gohome', array(
'mainpage_link' => makeUrl(get_main_page(), false, true)
));
}
$standard_404 .= '</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();
$standard_404 .= '<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['log_id']).'" onclick="ajaxRollback(\''.$r['log_id'].'\'); return false;"'
))
. '</p>';
if ( $session->user_level >= USER_LEVEL_ADMIN )
{
$standard_404 .= '<p>' . $lang->get('page_msg_404_admin_opts', array(
'detag_link' => makeUrl($paths->page, 'do=detag', true)
))
. '</p>';
}
}
$db->free_result();
}
$standard_404 .= '<p>
' . $lang->get('page_msg_404_http_response') . '
</p>';
$parser = $template->makeParserText($msg);
$parser->assign_vars(array(
'STANDARD404' => $standard_404
));
$msg = RenderMan::render($parser->run());
eval( '?>' . $msg );
}
/**
* Display the categories a page is in. If the current page is a category, its contents will also be printed.
*/
function display_categories()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
$html = '';
if ( $this->namespace == 'Category' )
{
// Show member pages and subcategories
$q = $db->sql_query('SELECT p.urlname, p.namespace, p.name, p.namespace=\'Category\' AS is_category FROM '.table_prefix.'categories AS c
LEFT JOIN '.table_prefix.'pages AS p
ON ( p.urlname = c.page_id AND p.namespace = c.namespace )
WHERE c.category_id=\'' . $db->escape($this->page_id) . '\'
ORDER BY is_category DESC, p.name ASC;');
if ( !$q )
{
$db->_die();
}
$html .= '<h3>' . $lang->get('onpage_cat_heading_subcategories') . '</h3>';
$html .= '<div class="tblholder">';
$html .= '<table border="0" cellspacing="1" cellpadding="4">';
$html .= '<tr>';
$ticker = 0;
$counter = 0;
$switched = false;
$class = 'row1';
while ( $row = $db->fetchrow() )
{
if ( $row['is_category'] == 0 && !$switched )
{
if ( $counter > 0 )
{
// Fill-in
while ( $ticker < 3 )
{
$ticker++;
$html .= '<td class="' . $class . '" style="width: 33.3%;"></td>';
}
}
else
{
$html .= '<td class="' . $class . '">' . $lang->get('onpage_cat_msg_no_subcategories') . '</td>';
}
$html .= '</tr></table></div>' . "\n\n";
$html .= '<h3>' . $lang->get('onpage_cat_heading_pages') . '</h3>';
$html .= '<div class="tblholder">';
$html .= '<table border="0" cellspacing="1" cellpadding="4">';
$html .= '<tr>';
$counter = 0;
$ticker = -1;
$switched = true;
}
$counter++;
$ticker++;
if ( $ticker == 3 )
{
$html .= '</tr><tr>';
$ticker = 0;
$class = ( $class == 'row3' ) ? 'row1' : 'row3';
}
$html .= "<td class=\"{$class}\" style=\"width: 33.3%;\">"; // " to workaround stupid jEdit bug
$link = makeUrlNS($row['namespace'], sanitize_page_id($row['urlname']));
$html .= '<a href="' . $link . '"';
$key = $paths->nslist[$row['namespace']] . sanitize_page_id($row['urlname']);
if ( !isPage( $key ) )
{
$html .= ' class="wikilink-nonexistent"';
}
$html .= '>';
$title = get_page_title_ns($row['urlname'], $row['namespace']);
$html .= htmlspecialchars($title);
$html .= '</a>';
$html .= "</td>";
}
if ( !$switched )
{
if ( $counter > 0 )
{
// Fill-in
while ( $ticker < 2 )
{
$ticker++;
$html .= '<td class="' . $class . '" style="width: 33.3%;"></td>';
}
}
else
{
$html .= '<td class="' . $class . '">' . $lang->get('onpage_cat_msg_no_subcategories') . '</td>';
}
$html .= '</tr></table></div>' . "\n\n";
$html .= '<h3>' . $lang->get('onpage_cat_heading_pages') . '</h3>';
$html .= '<div class="tblholder">';
$html .= '<table border="0" cellspacing="1" cellpadding="4">';
$html .= '<tr>';
$counter = 0;
$ticker = 0;
$switched = true;
}
if ( $counter > 0 )
{
// Fill-in
while ( $ticker < 2 )
{
$ticker++;
$html .= '<td class="' . $class . '" style="width: 33.3%;"></td>';
}
}
else
{
$html .= '<td class="' . $class . '">' . $lang->get('onpage_cat_msg_no_pages') . '</td>';
}
$html .= '</tr></table></div>' . "\n\n";
}
if ( $this->namespace != 'Special' && $this->namespace != 'Admin' )
{
$html .= '<div class="mdg-comment" style="margin: 10px 0 0 0;" id="category_box_wrapper">';
$html .= '<div style="float: right;">';
$html .= '(<a href="#" onclick="ajaxCatToTag(); return false;">' . $lang->get('tags_catbox_link') . '</a>)';
$html .= '</div>';
$html .= '<div id="mdgCatBox">' . $lang->get('catedit_catbox_lbl_categories') . ' ';
$where = '( c.page_id=\'' . $db->escape($this->page_id) . '\' AND c.namespace=\'' . $db->escape($this->namespace) . '\' )';
$prefix = table_prefix;
$sql = <<<EOF
SELECT c.category_id FROM {$prefix}categories AS c
LEFT JOIN {$prefix}pages AS p
ON ( ( p.urlname = c.page_id AND p.namespace = c.namespace ) OR ( p.urlname IS NULL AND p.namespace IS NULL ) )
WHERE $where
ORDER BY p.name ASC, c.page_id ASC;
EOF;
$q = $db->sql_query($sql);
if ( !$q )
$db->_die();
if ( $row = $db->fetchrow() )
{
$list = array();
do
{
$cid = sanitize_page_id($row['category_id']);
$title = get_page_title_ns($cid, 'Category');
$link = makeUrlNS('Category', $cid);
$list[] = '<a href="' . $link . '">' . htmlspecialchars($title) . '</a>';
}
while ( $row = $db->fetchrow() );
$html .= implode(', ', $list);
}
else
{
$html .= $lang->get('catedit_catbox_lbl_uncategorized');
}
$can_edit = ( $session->get_permissions('edit_cat') && ( !$paths->page_protected || $session->get_permissions('even_when_protected') ) );
if ( $can_edit )
{
$edit_link = '<a href="' . makeUrl($paths->page, 'do=catedit', true) . '" onclick="ajaxCatEdit(); return false;">' . $lang->get('catedit_catbox_link_edit') . '</a>';
$html .= ' [ ' . $edit_link . ' ]';
}
$html .= '</div></div>';
}
return $html;
}
/**
* Just tell us if the current page exists or not.
* @return bool
*/
function exists()
{
return $this->exists;
}
}
/**
* The namespaces that use the default handler.
*/
class Namespace_Article extends Namespace_Default
{
}
class Namespace_Project extends Namespace_Default
{
}
class Namespace_Help extends Namespace_Default
{
}