<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Copyright (C) 2006-2009 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 Namespace_File extends Namespace_Default
{
function send()
{
global $output;
$output->add_before_footer($this->show_info());
$output->add_before_footer($this->display_categories());
if ( $this->exists )
{
$this->send_from_db();
}
else
{
$output->header();
$this->error_404();
$output->footer();
}
}
function show_info()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $lang;
require_once(ENANO_ROOT . '/includes/log.php');
$local_page_id = $this->page_id;
$local_namespace = $this->namespace;
$html = '';
// Prevent unnecessary work
if ( $local_namespace != 'File' )
return null;
$selfn = $db->escape($this->page_id);
$q = $db->sql_query('SELECT f.mimetype,f.time_id,f.size,l.log_id FROM ' . table_prefix . "files AS f\n"
. " LEFT JOIN " . table_prefix . "logs AS l\n"
. " ON ( l.time_id = f.time_id AND ( l.action = 'reupload' OR l.action IS NULL ) )\n"
. " WHERE f.page_id = '$selfn'\n"
. " ORDER BY f.time_id DESC;");
if ( !$q )
{
$db->_die('The file type could not be fetched.');
}
if ( $db->numrows() < 1 )
{
$html .= '<div class="mdg-comment" style="margin-left: 0;">
<h3>' . $lang->get('onpage_filebox_heading') . '</h3>
<p>' . $lang->get('onpage_filebox_msg_not_found', array('upload_link' => makeUrlNS('Special', 'UploadFile/'.$local_page_id))) . '</p>
</div>
<br />';
return $html;
}
$r = $db->fetchrow();
$mimetype = $r['mimetype'];
$datestring = enano_date(ED_DATE | ED_TIME, (int)$r['time_id']);
$html .= '<div class="mdg-comment" style="margin-left: 0;">
<h3>' . $lang->get('onpage_filebox_heading') . '</h3>
<p>' . $lang->get('onpage_filebox_lbl_type') . ' '.$r['mimetype'].'<br />';
$size = $r['size'] . ' ' . $lang->get('etc_unit_bytes');
if ( $r['size'] >= 1048576 )
{
$size .= ' (' . ( round($r['size'] / 1048576, 1) ) . ' ' . $lang->get('etc_unit_megabytes_short') . ')';
}
else if ( $r['size'] >= 1024 )
{
$size .= ' (' . ( round($r['size'] / 1024, 1) ) . ' ' . $lang->get('etc_unit_kilobytes_short') . ')';
}
$html .= $lang->get('onpage_filebox_lbl_size', array('size' => $size));
$html .= '<br />' . $lang->get('onpage_filebox_lbl_uploaded') . ' ' . $datestring . '</p>';
// are we dealing with an image?
$is_image = substr($mimetype, 0, 6) == 'image/';
// for anything other than plain text and
if ( !$is_image && ( substr($mimetype, 0, 5) != 'text/' || $mimetype == 'text/html' || $mimetype == 'text/javascript' ) )
{
$html .= '<div class="warning-box">
' . $lang->get('onpage_filebox_msg_virus_warning') . '
</div>';
}
if ( $is_image )
{
// show a thumbnail of the image
$html .= '<p>
<a href="'.makeUrlNS('Special', 'DownloadFile'.'/'.$selfn).'">
<img style="border: 0;" alt="' . htmlspecialchars($paths->page) . '" src="' . makeUrlNS('Special', "DownloadFile/$selfn/{$r['time_id']}", 'preview', true) . '" />
</a>
</p>';
}
$html .= '<p>
<a href="'.makeUrlNS('Special', 'DownloadFile'.'/'.$selfn.'/'.$r['time_id'].htmlspecialchars(urlSeparator).'download').'">
' . $lang->get('onpage_filebox_btn_download') . '
</a>';
// allow reupload if:
// * we are allowed to upload new versions, and
// - the file is unprotected, or
// - we have permission to override protection
if ( !$this->perms )
$this->perms = $session->fetch_page_acl($this->page_id, $this->namespace);
if ( $this->perms->get_permissions('upload_new_version') && ( !$this->page_protected || $this->perms->get_permissions('even_when_protected') ) )
{
// upload new version link
$html .= ' | <a href="'.makeUrlNS('Special', "UploadFile/$selfn", false, true).'">
' . $lang->get('onpage_filebox_btn_upload_new') . '
</a>';
}
// close off paragraph
$html .= '</p>';
// only show this if there's more than one revision
if ( $db->numrows() > 1 )
{
// requery, sql_result_seek() doesn't work on postgres
$db->free_result();
$q = $db->sql_query('SELECT f.mimetype,f.time_id,f.size,l.log_id FROM ' . table_prefix . "files AS f\n"
. " LEFT JOIN " . table_prefix . "logs AS l\n"
. " ON ( l.time_id = f.time_id AND ( l.action = 'reupload' OR l.action IS NULL ) )\n"
. " WHERE f.page_id = '$selfn'\n"
. " ORDER BY f.time_id DESC;");
if ( !$q )
$db->_die();
$log = new LogDisplay();
$log->add_criterion('page', $paths->nslist['File'] . $this->page_id);
$log->add_criterion('action', 'reupload');
$data = $log->get_data();
$i = -1;
$html .= '<h3>' . $lang->get('onpage_filebox_heading_history') . '</h3><p>';
$last_rollback_id = false;
$download_flag = $is_image ? false : 'download';
while ( $r = $db->fetchrow($q) )
{
$html .= '(<a href="'.makeUrlNS('Special', "DownloadFile/$selfn/{$r['time_id']}", $download_flag, true).'">' . $lang->get('onpage_filebox_btn_this_version') . '</a>) ';
if ( $session->get_permissions('history_rollback') && $last_rollback_id )
$html .= ' (<a href="#rollback:' . $last_rollback_id . '" onclick="ajaxRollback(\''.$last_rollback_id.'\'); return false;">' . $lang->get('onpage_filebox_btn_revert') . '</a>) ';
else if ( $session->get_permissions('history_rollback') && !$last_rollback_id )
$html .= ' (' . $lang->get('onpage_filebox_btn_current') . ') ';
$last_rollback_id = $r['log_id'];
$html .= $r['mimetype'].', ';
$fs = $r['size'];
$fs = (int)$fs;
if($fs >= 1048576)
{
$fs = round($fs / 1048576, 1);
$size = $fs . ' ' . $lang->get('etc_unit_megabytes_short');
}
else
if ( $fs >= 1024 )
{
$fs = round($fs / 1024, 1);
$size = $fs . ' ' . $lang->get('etc_unit_kilobytes_short');
}
else
{
$size = $fs . ' ' . $lang->get('etc_unit_bytes');
}
$html .= $size;
if ( isset($data[++$i]) )
$html .= ': ' . LogDisplay::render_row($data[$i], false, false);
$html .= '<br />';
}
$html .= '</p>';
}
$db->free_result();
$html .= '<h3>' . $lang->get('onpage_filebox_lbl_pagesusing') . '</h3>';
$regexp = ENANO_DBLAYER == 'PGSQL' ? '~ E' : 'REGEXP ';
$q = $db->sql_query('SELECT t.page_id, t.namespace, p.name FROM ' . table_prefix . "page_text AS t\n"
. " LEFT JOIN " . table_prefix . "pages AS p\n"
. " ON ( t.page_id = p.urlname AND t.namespace = p.namespace )\n"
. " WHERE t.page_text {$regexp}'\\\\[\\\\[:" .
addslashes(preg_quote($paths->nslist[$this->namespace])) .
addslashes(preg_quote($this->page_id)) .
"(\\\\||\\\\])';");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
$html .= '<p>' . $lang->get('onpage_filebox_msg_no_inlinks') . '</p>';
}
else
{
$html .= '<p>' . $lang->get('onpage_filebox_msg_pagesusing') . '</p>';
$html .= '<ul>';
while ( $row = $db->fetchrow() )
{
$html .= '<li><a href="' . makeUrlNS($row['namespace'], $row['page_id']) . '">' .
htmlspecialchars($row['name']) .
'</a></li>';
}
$html .= '</ul>';
}
$db->free_result();
$html .= '</div><br />';
return $html;
}
/**
* Delete a file from the database and filesystem based on file ID.
* @param int File ID
* @return null
*/
public static function delete_file($file_id)
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( !is_int($file_id) )
// seriously?
return null;
// pull file info
$q = $db->sql_query('SELECT filename, page_id, time_id, file_extension, file_key FROM ' . table_prefix . "files WHERE file_id = $file_id;");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
$db->free_result();
return null;
}
$row = $db->fetchrow();
$db->free_result();
// make sure the image isn't used by multiple revisions
$q = $db->sql_query('SELECT 1 FROM ' . table_prefix . "files WHERE file_key = '{$row['file_key']}';");
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
{
// remove from filesystem
$file_path = ENANO_ROOT . "/files/{$row['file_key']}{$row['file_extension']}";
@unlink($file_path);
// old filename standard
$file_path = ENANO_ROOT . "/files/{$row['file_key']}-{$row['time_id']}{$row['file_extension']}";
@unlink($file_path);
}
$db->free_result();
// remove from cache
if ( $dp = @opendir(ENANO_ROOT . '/cache/') )
{
$regexp = '#' . preg_quote($row['filename']) . '-' . $row['time_id'] . '-[0-9]+x[0-9]+' . preg_quote($row['file_extension']) . '#';
while ( $dh = @readdir($dp) )
{
if ( preg_match($regexp, $dh) )
{
// it's a match, delete the cached thumbnail
@unlink(ENANO_ROOT . "/cache/$dh");
}
}
closedir($dp);
}
// remove from database
$q = $db->sql_query('DELETE FROM ' . table_prefix . "files WHERE file_id = $file_id;");
if ( !$q )
$db->_die();
// remove from logs
$page_id_db = $db->escape($row['page_id']);
$q = $db->sql_query('DELETE FROM ' . table_prefix . "logs WHERE page_id = '{$page_id_db}' AND namespace = 'File' AND action = 'reupload' AND time_id = {$row['time_id']};");
if ( !$q )
$db->_die();
return true;
}
}