<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.0 (Banshee)
* 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.
* @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 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
);
/**
* 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
// 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;
$this->_setup( $page_id, $namespace, $revision_id );
}
/**
* The main method to send the page content. Also responsible for checking permissions.
*/
function send()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !$this->perms->get_permissions('read') )
{
$this->err_access_denied();
return false;
}
$pathskey = $paths->nslist[ $this->namespace ] . $this->page_id;
$strict_no_headers = false;
if ( isset($paths->pages[$pathskey]) )
{
if ( $paths->pages[$pathskey]['special'] == 1 )
{
$this->send_headers = false;
$strict_no_headers = true;
}
if ( $paths->pages[$pathskey]['password'] != '' && $paths->pages[$pathskey]['password'] != sha1('') )
{
$password =& $paths->pages[$pathskey]['password'];
if ( $this->password != $password )
{
$this->err_wrong_password();
return false;
}
}
}
if ( $this->namespace == 'Special' || $this->namespace == 'Admin' )
{
if ( !$this->page_exists )
{
redirect( makeUrl(getConfig('main_page')), 'Can\'t find special page', 'The special or administration page you requested does not exist. You will now be transferred to the main page.', 2 );
}
$func_name = "page_{$this->namespace}_{$this->page_id}";
if ( function_exists($func_name) )
{
return @call_user_func($func_name);
}
else
{
$title = 'Page backend not found';
$message = "The administration page you are looking for was properly registered using the page API, but the backend function
(<tt>$fname</tt>) was not found. If this is a plugin page, then this is almost certainly a bug with the plugin.";
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>";
}
return false;
}
}
else if ( $this->namespace == 'User' )
{
$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 );
echo $text;
$this->footer();
}
else if ( !$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) )
{
$this->err_page_not_existent();
}
}
else // (disabled for compatibility reasons) if ( in_array($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();
return false;
}
else
{
$this->render( (!$strict_no_headers) );
}
}
}
/**
* 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"?
if ( $paths->cpage['urlname_nons'] == $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
{
$this->page_exists = true;
}
// Compatibility with older databases
if ( strstr($this->page_id, '.2e') && !$this->page_exists )
{
$page_id = str_replace('.2e', '.', $page_id);
if ( $paths->cpage['urlname_nons'] == $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
{
$this->page_exists = true;
}
}
}
/**
* Renders it all in one go, and echoes it out. This assumes that the text is in the DB.
* @access private
*/
function render($incl_inner_headers = true)
{
$text = $this->fetch_text();
$this->header();
if ( $incl_inner_headers )
{
display_page_headers();
}
if ( $this->revision_id )
{
echo '<div class="info-box" style="margin-left: 0; margin-top: 5px;"><b>Notice:</b><br />The page you are viewing was archived on '.date('F d, Y \a\t h:i a', $this->revision_id).'.<br /><a href="'.makeUrlNS($this->namespace, $this->page_id).'" onclick="ajaxReset(); return false;">View current version</a> | <a href="'.makeUrlNS($this->namespace, $this->pageid, 'do=rollback&id='.$this->revision_id).'" onclick="ajaxRollback(\''.$this->revision_id.'\')">Restore this version</a></div><br />';
}
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 );
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;
if ( $this->page_id == $paths->cpage['urlname_nons'] && $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_name,
Array(
'_' => ' ',
'<' => '<',
'>' => '>'
));
$target_username = preg_replace('/^' . preg_quote($paths->nslist['User']) . '/', '', $target_username);
if ( ( $page_name == str_replace('_', ' ', $this->page_id) || $page_name == $paths->nslist['User'] . str_replace('_', ' ', $this->page_id) ) || !$this->page_exists )
{
$page_name = "$target_username's user page";
}
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, 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.user_id;');
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 ( $user_exists ):
echo '<table border="0" cellspacing="4" cellpadding="0" style="width: 100%;">';
echo '<tr><td style="width: 150px;" valign="top">';
echo '<div class="tblholder">
<table border="0" cellspacing="1" cellpadding="4">';
//
// Main part of sidebar
//
// Basic user info
echo '<tr><th class="subhead">All about ' . htmlspecialchars($target_username) . '</th></tr>';
echo '<tr><td class="row3">Joined: ' . date('F d, Y h:i a', $userdata['reg_time']) . '</td></tr>';
echo '<tr><td class="row1">Total comments: ' . $userdata['n_comments'] . '</td></tr>';
if ( !empty($userdata['real_name']) )
{
echo '<tr><td class="row3">Real name: ' . $userdata['real_name'] . '</td></tr>';
}
// Comments
echo '<tr><th class="subhead">' . htmlspecialchars($target_username) . '\'s latest comments</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'] = 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>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 = $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 . '">This user has not posted any comments.</td></tr>';
}
echo '</table>';
echo '</div>';
echo '</td></tr>';
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">Get in touch</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.'">E-mail address: ' . $email_link . '</td></tr>';
}
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
if ( $session->user_logged_in )
{
echo '<tr><td class="'.$class.'">Send ' . htmlspecialchars($target_username) . ' a <a href="' . makeUrlNS('Special', 'PrivateMessages/Compose/to/' . $this->page_id, false, true) . '">Private Message</a>!</td></tr>';
}
else
{
echo '<tr><td class="'.$class.'">You could send ' . htmlspecialchars($target_username) . ' a private message if you were <a href="' . makeUrlNS('Special', 'Login/' . $paths->nslist[$this->namespace] . $this->page_id) . '">logged in</a>.</td></tr>';
}
if ( !empty($userdata['user_aim']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">AIM: ' . $userdata['user_aim'] . '</td></tr>';
}
if ( !empty($userdata['user_yahoo']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">Yahoo! IM: ' . $userdata['user_yahoo'] . '</td></tr>';
}
if ( !empty($userdata['user_msn']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
$email_link = $email->encryptEmail($userdata['user_msn']);
echo '<tr><td class="'.$class.'">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.'">XMPP/Jabber: ' . $email_link . '</td></tr>';
}
// Real life
echo '<tr><th class="subhead">' . htmlspecialchars($target_username) . ' in real life</th></tr>';
if ( !empty($userdata['user_location']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">Location: ' . $userdata['user_location'] . '</td></tr>';
}
if ( !empty($userdata['user_job']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">Job/occupation: ' . $userdata['user_job'] . '</td></tr>';
}
if ( !empty($userdata['user_hobbies']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">Enjoys: ' . $userdata['user_hobbies'] . '</td></tr>';
}
if ( empty($userdata['user_location']) && empty($userdata['user_job']) && empty($userdata['user_hobbies']) )
{
$class = ( $class == 'row1' ) ? 'row3' : 'row1';
echo '<tr><td class="'.$class.'">' . htmlspecialchars($target_username) . ' hasn\'t posted any real-life contact information.</td></tr>';
}
echo ' </table>
</div>';
echo '</tr></table>';
else:
echo '<p>Additional information: user "' . htmlspecialchars($target_username) . '" does not exist.</p>';
endif;
// if ( $send_headers )
// {
// display_page_footers();
// }
$this->send_headers = $send_headers;
unset($send_headers);
$this->footer();
}
/**
* 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
$ob = '';
$template->tpl_strings['PAGE_NAME'] = 'Access denied';
if ( $this->send_headers )
{
$ob .= $template->getHeader();
}
$ob .= '<div class="error-box"><b>Access to this page is denied.</b><br />This may be because you are not logged in or you have not met certain criteria for viewing this page.</div>';
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
$title = 'Password required';
$message = ( empty($this->password) ) ? '<p>Access to this page requires a password. Please enter the password for this page below:</p>' : '<p>The password you entered for this page was incorrect. Please enter the password for this page below:</p>';
$message .= '<form action="' . makeUrlNS($this->namespace, $this->page_id) . '" method="post">
<p>
<label>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
$this->header();
header('HTTP/1.1 404 Not Found');
if ( $userpage )
{
echo '<h3>There is no page with this title yet.</h3>
<p>This user has not created his or her user page yet.';
}
else
{
echo '<h3>There is no page with this title yet.</h3>
<p>You have requested a page that doesn\'t exist yet.';
}
if ( $session->get_permissions('create_page') )
{
echo ' You can <a href="'.makeUrlNS($this->namespace, $this->page_id, 'do=edit', true).'" onclick="ajaxEditor(); return false;">create this page</a>, or return to the <a href="'.makeUrl(getConfig('main_page')).'">homepage</a>.';
}
else
{
echo ' Return to the <a href="'.makeUrl(getConfig('main_page')).'">homepage</a>.</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><b>This page was deleted on ' . $r['date_string'] . '.</b> The stated reason was:</p><blockquote>' . $r['edit_summary'] . '</blockquote><p>You can probably <a href="'.makeUrl($paths->page, 'do=rollback&id='.$r['time_id']).'" onclick="ajaxRollback(\''.$r['time_id'].'\'); return false;">roll back</a> the deletion.</p>';
}
$db->free_result();
}
echo '<p>
HTTP Error: 404 Not Found
</p>';
$this->footer();
}
/**
* PHP 4 constructor.
* @see PageProcessor::__construct()
*/
function PageProcessor( $page_id, $namespace, $revision_id = 0 )
{
$this->__construct($page_id, $namespace, $revision_id);
}
/**
* Send an error message and die. For debugging or critical technical errors only - nothing that would under normal circumstances be shown to the user.
* @var string Error message
* @var bool If true, send DBAL's debugging information as well
*/
function send_error($message, $sql = false)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$content = "<p>$message</p>";
$template->tpl_strings['PAGE_NAME'] = 'General error in page fetcher';
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;
}
} // class PageProcessor
?>