pukiwiki/plugin/diff.inc.php

<?php
/////////////////////////////////////////////////
// PukiWiki - Yet another WikiWikiWeb clone.
//
// $Id: diff.inc.php,v 1.3 2003/06/22 06:37:18 arino Exp $
//
//???若?吾??勲????茵?ず????
function plugin_diff_action()
{
        global $vars;
        
        check_readable($vars['page'],true,true);
        
        $action = array_key_exists('action',$vars) ? $vars['action'] : '';
        
        switch ($vars['action']) {
        case 'delete':
                $retval = plugin_diff_delete($vars['page']);
                break;
        default:
                $retval = plugin_diff_view($vars['page']);
                break;                  
        }
        return $retval;
}
// 綏?????茵?ず
function plugin_diff_view($page)
{
        global $script,$hr;
        global $_msg_notfound,$_msg_goto,$_msg_deleted,$_msg_addline,$_msg_delline,$_title_diff;
        global $_title_diff_delete;
        
        $r_page = rawurlencode($page);
        $s_page = htmlspecialchars($page);
        
        $menu = array(
                "<li>$_msg_addline</li>",
                "<li>$_msg_delline</li>"
        );

        if (is_page($page)) {
                $menu[] = " <li>".str_replace('$1',"<a href=\"$script?$r_page\">$s_page</a>",$_msg_goto)."</li>";
        } else {
                $menu[] = " <li>".str_replace('$1',$s_page,$_msg_deleted)."</li>";
        }

        $delete_msg = '';
        $filename = DIFF_DIR.encode($page).'.txt';
        if (file_exists($filename)) {
                $diffdata = htmlspecialchars(join('',file($filename)));
                $diffdata = preg_replace('/^(\-)(.*)$/m','<span class="diff_removed"> $2</span>',$diffdata);
                $diffdata = preg_replace('/^(\+)(.*)$/m','<span class="diff_added"> $2</span>',$diffdata);
                $menu[] = "<li><a href=\"$script?cmd=diff&amp;action=delete&amp;page=$r_page\">" .
                        str_replace('$1',$s_page,$_title_diff_delete) . '</a></li>';
                $msg = "<pre>$diffdata</pre>\n";
        }
        else if (is_page($page)) {
                $diffdata = trim(htmlspecialchars(join('',get_source($page))));
                $msg = "<pre><span class=\"diff_added\">$diffdata</span></pre>\n";
        }
        else {
                return array('msg'=>$_title_diff, 'body'=>$_msg_notfound);
        }

        $menu = join("\n",$menu);
        $body = <<<EOD
<ul>
$menu
</ul>
$hr
EOD;

        return array('msg'=>$_title_diff,'body'=>$body.$msg);
}
// ???????≪??????????/span>
function plugin_diff_delete($page)
{
        error_reporting(E_ALL);

        global $script,$post,$adminpass;
        global $_title_diff_delete,$_msg_diff_deleted,$_msg_diff_delete;
        global $_msg_diff_adminpass,$_btn_delete,$_msg_invalidpass;
        
        if (!is_pagename($page)) { return; }
        $filename = DIFF_DIR.encode($page).'.txt'; 
        if (!file_exists($filename)) { return; }

        $s_page = htmlspecialchars($page);
        $pass = array_key_exists('pass',$post) ? $post['pass'] : NULL;
        
        if (md5($pass) == $adminpass) {
                unlink($filename);
                return array(
                        'msg'  => $_title_diff_delete,
                        'body' => str_replace('$1',make_pagelink($page),$_msg_diff_deleted)
                );
        }
        $body = ($pass === NULL) ? '' : "<p><strong>$_msg_invalidpass</strong></p>\n";

        $msg_delete = str_replace('$1',make_pagelink($page),$_msg_diff_delete);
        $body .= <<<EOD
<p>$_msg_diff_adminpass</p>
<form action="$script" method="post">
 <div>
  <input type="hidden" name="cmd" value="diff" />
  <input type="hidden" name="page" value="$s_page" />
  <input type="hidden" name="action" value="delete" />
  <input type="password" name="pass" size="12" />
  <input type="submit" name="ok" value="$_btn_delete" />
 </div>
</form>
EOD;
        return  array('msg'=>$_title_diff_delete,'body'=>$body);
}       
?>