Populated release branch

1 files changed, 153 insertions, 0 deletions

diff --git a/itjs.class b/itjs.class
new file mode 100644
index 0000000..8828d78
--- /dev/null
+++ b/itjs.class
@@ -0,0 +1,153 @@
+<?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
+{
+
+/**
+ * Send HTTP headers (content-type) to transmit javascript code
+ */
+function send_headers()
+{
+	if (!preg_match('/Opera/', $_SERVER['HTTP_USER_AGENT']) && !$_REQUEST['itjs_iframe'])	# text/plain breaks Opera 8.51/Linux and IFrame fallback
+		header('Content-Type: text/plain; charset=iso-8859-1');	# Berni reported some Firewalls to require this
+
+	header('Expires: ' . gmdate('D, d M Y H:i:s', time()+10) . ' GMT');	# prevent broken data on IE reloads
+}
+
+/**
+ * Serialize the result into a javascript script
+ * @param $values Array with values to be serialized
+ * @param $envelope Encapsulate the data when callback function is provided (iframe solution)
+ * @return String with javascript code to be sent to client
+ */
+function serialize($values, $envelope = false)
+{
+	if (($envelope || isset($values['eof'])) && ($callback = it::replace(array('[^\w.]' => ""), $_REQUEST['itjs_call'])))
+	{
+		$target = $_REQUEST['itjs_iframe'] ? "parent" : "window";
+		$header = "$target.it_loader && $target.$callback && $target.$callback.dataReady(";
+		$footer = "," . intval($_REQUEST['itjs_callid']) . ");";
+
+		if ($_REQUEST['itjs_iframe'])	# iframe-based loading required by Opera 7
+		{
+			$header = '<script type="text/javascript">' . $header;
+			$footer .= "</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\n";	# 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 ($value === true)
+			$result .= 'true';
+		else if ($value === false)
+			$result .= 'false';
+		else if (!is_array($value))
+		{
+			$quote = (strval(intval($value)) === strval($value)) ? "" : '"';
+			$result .= $quote . preg_replace('/([\xa0-\xff])/e', 'sprintf("\\u%04x", ord("\\1"))', strtr($value, array("\0" => '\\0', '"' => '\\"', "</"=>"<\\/", "\n" => '\\n', "\r" => '\\r', "\t" => '\\t', "\\" => '\\\\'))) . $quote;
+		}
+		else
+			$result .= itjs::encode($value);
+
+		$separator = "," . $texts{3};
+	}
+
+	$result .= $texts{1};
+
+	return $result;
+}
+
+function filenames($filelist)
+{
+	$result = array();
+
+	$files = array_flip(explode(",", it::replace(array('\?.*' => ""), $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;	
+}
+
+}
+
+?>