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<?php
/*
** $Id$
**
** ITools - the Internet Tools Library
**
** Copyright (C) 1995-2004 by the ITools Authors.
** This program is free software; you can redistribute it and/or
** modify it under the terms of either the GNU General Public License
** or the GNU Lesser General Public License, as published by the Free
** Software Foundation. See http://www.gnu.org/licenses/ for details.
**
** itjs.class - functions to handle javascript inclusion
*/
class itjs
{
/**
* Serialize the result into a javascript script
* @param $values Array with values to be serialized
* @param $callback Javascript function to call with data (iframe solution)
* @return String with javascript code to be sent to client
*/
function serialize($values)
{
if ($callback = $_REQUEST['itjs_call'])
{
$header = "<script type='text/javascript'>$callback(";
$footer = "," . intval($_REQUEST['itjs_callid']) . ")</script>";
}
return $header . itjs::encode($values) . $footer;
}
/*
* Encode the result into a javascript array to transfer and eval() in client
*/
function encode($values)
{
$texts = ($values === array_values($values)) ? "[]0" : "{}1"; # Numerical or associative array
$result = $texts{0};
foreach ($values as $key => $value)
{
$result .= $separator;
if ($texts{2})
{
if (!preg_match('/^[a-z_]\w*$/i', $key))
$key = "'$key'";
$result .= "$key:";
}
if (!is_array($value))
{
$quote = (strval(intval($value)) == strval($value)) ? "" : '"';
$result .= $quote . strtr($value, array("\0" => '\\0', '"' => '\\"', "</"=>"<\\/", "\n" => '\\n', "\r" => '\\r', "\t" => '\\t', "\\" => '\\\\')) . $quote;
}
else
$result .= itjs::encode($value);
$separator = ",\n";
}
$result .= $texts{1};
return $result;
}
function filenames($filelist)
{
$result = array();
$files = array_flip(explode(",", $filelist));
$itools = array_flip(array("it.js", "loader.js", "state.js", "timer.js"));
$plainfiles = array_flip(array("boot.js", "state.html", "error.gif"));
if (isset($files['itools']))
{
unset($files['itools']);
$files = $itools + $files; # Order is important!
}
foreach (array_keys($files) as $file)
{
if (isset($itools[$file]) || isset($plainfiles[$file]))
$result[] = "/www/server/phpinclude/itools/itjs/$file";
else
$result[] = $GLOBALS['ULTRAHOME'] . "/itjs/$file";
}
return $result;
}
/**
* Strip comments and trim lines
* @param $code String containing javascript code to be stripped
* @return Naked code
*/
function strip($code)
{
if (!preg_match("/^devel/", $GLOBALS['ULTRASERVERTYPE']))
$code = preg_replace(array('|\s//.*$|m', '|/\*.*?\*/|s', '|^\s+|m'), array(), $code);
return $code;
}
/**
* Compute checksum for list of files
* @param $files Array of filenames to calculate checksum for
* @return Checksum for given files
*/
function checksum($files = array())
{
foreach (array_merge($files, array('itjs.php', 'itjs.class')) as $file)
{
if (!preg_match("/^devel/", $GLOBALS['ULTRASERVERTYPE']))
$result += @filesize($file);
else
$result = md5($result . @file_get_contents($file));
}
return $result;
}
}
?>
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