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<?php
/**
* @package SAJAX
* @copyright Copyright (C) 2006 ModernMethod, http://www.modernmethod.com/sajax/
* @version 0.12, patch level JoomlaPack 1.2.1
* @license BSD
*
* NOTE: The original SAJAX library has been modified to fit JoomlaPack's needs. This is a
* derivative version. No license banners were on the original code. No license text
* was found on their site, except a vague notice on being distributed under a BSD
* license. I hope this modification is legal.
**/
// ensure this file is being included by a parent file - Joomla! 1.0.x and 1.5 compatible
(defined( '_VALID_MOS' ) || defined('_JEXEC')) or die( 'Direct Access to this location is not allowed.' );
if (!isset($SAJAX_INCLUDED)) {
/*
* GLOBALS AND DEFAULTS
*
*/
$GLOBALS['sajax_version'] = '0.12';
$GLOBALS['sajax_debug_mode'] = 0;
$GLOBALS['sajax_export_list'] = array();
$GLOBALS['sajax_request_type'] = 'POST';
$GLOBALS['sajax_remote_uri'] = '';
$GLOBALS['sajax_remote_uri_params'] = '';
$GLOBALS['sajax_failure_redirect'] = '';
/*
* CODE
*
*/
//
// Initialize the Sajax library.
//
function sajax_init() {
}
// Since str_split used in sajax_get_my_uri is only available on PHP 5, we have
// to provide an alternative for those using PHP 4.x
if(!function_exists('str_split')){
function str_split($string,$split_length=1){
$count = strlen($string);
if($split_length < 1){
return false;
} elseif($split_length > $count){
return array($string);
} else {
$num = (int)ceil($count/$split_length);
$ret = array();
for($i=0;$i<$num;$i++){
$ret[] = substr($string,$i*$split_length,$split_length);
}
return $ret;
}
}
}
//
// Helper function to return the script's own URI.
//
function sajax_get_my_uri() {
return str_replace('\\','%5c', JURI::root()).'administrator/index2.php';
}
global $sajax_remote_uri, $sajax_remote_uri_params;
$sajax_remote_uri = sajax_get_my_uri();
$sajax_remote_uri_params = "option=com_joomlapack&view=ajax&format=raw";
/**
* Forces SAJAX to user per-page AJAX proxy URLs. Call it to make AJAX calls be processed by the
* page class processAJAX() method.
*
*/
function sajax_force_page_ajax($view = null)
{
global $sajax_remote_uri_params;
if(is_null($view)) $view = JRequest::getCmd('view','ajax');
$sajax_remote_uri_params = "option=com_joomlapack&view=$view&format=raw";
}
//
// Helper function to return an eval()-usable representation
// of an object in JavaScript.
//
function sajax_get_js_repr($value) {
$type = gettype($value);
if ($type == "boolean") {
return ($value) ? "Boolean(true)" : "Boolean(false)";
}
elseif ($type == "integer") {
return "parseInt($value)";
}
elseif ($type == "double") {
return "parseFloat($value)";
}
elseif ($type == "array" || $type == "object" ) {
//
// Arrays with non-numeric indices are not
// permitted according to ECMAScript, yet everyone
// uses them.. We'll use an object.
//
$s = "{ ";
if ($type == "object") {
$value = get_object_vars($value);
}
foreach ($value as $k=>$v) {
$esc_key = sajax_esc($k);
if (is_numeric($k))
$s .= "$k: " . sajax_get_js_repr($v) . ", ";
else
$s .= "\"$esc_key\": " . sajax_get_js_repr($v) . ", ";
}
if (count($value))
$s = substr($s, 0, -2);
return $s . " }";
}
else {
$esc_val = sajax_esc($value);
$s = "'$esc_val'";
return $s;
}
}
function sajax_handle_client_request( &$object ) {
global $sajax_export_list;
$mode = "";
if (! empty($_GET["rs"]))
$mode = "get";
if (!empty($_POST["rs"]))
$mode = "post";
if( class_exists('JRequest') )
$mode = "joomla";
if (empty($mode))
return;
$target = "";
ob_clean();
if ($mode == "get") {
// Bust cache in the head
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// always modified
header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header ("Pragma: no-cache"); // HTTP/1.0
$func_name = urldecode($_GET["rs"]);
if (! empty($_GET["rsargs"]))
{
$args = array();
foreach($_GET["rsargs"] as $key => $value)
{
$args[$key] = html_entity_decode(preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($value)),null,'UTF-8');
}
//$args = $_GET["rsargs"];
}
else
$args = array();
}
else if ($mode == "post") {
$func_name = $_POST["rs"];
if (! empty($_POST["rsargs"]))
{
/*
$ISPHP4 = (version_compare(PHP_VERSION,'5.0.0') < 0) ? true : false;
$args = array();
foreach($_POST["rsargs"] as $key => $value)
{
if($ISPHP4)
$args[$key] = html_entity_decode(preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($value)));
else
$args[$key] = html_entity_decode(preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($value)),null,'UTF-8');
}
//$args = $_POST["rsargs"];
*/
$args = JRequest::getVar('rsargs',Array());
}
else
$args = array();
}
else if( $mode == 'joomla' ) {
// Bust cache in the head
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// always modified
header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header ("Pragma: no-cache"); // HTTP/1.0
$func_name = JRequest::getString('rs');
$args = JRequest::getVar('rsargs', array(), 'default', 'array', 4);
}
if (! in_array($func_name, $sajax_export_list))
echo "-:$func_name not callable";
else {
echo "+:";
ob_flush();
if(is_object($object))
{
$result = call_user_func_array(array(&$object, $func_name), $args);
}
else
{
$result = call_user_func_array($func_name, $args);
}
echo "var res = " . trim(sajax_get_js_repr($result)) . "; res;";
ob_flush();
flush();
}
exit;
}
function sajax_get_common_js() {
global $sajax_debug_mode;
global $sajax_request_type;
global $sajax_remote_uri;
global $sajax_failure_redirect;
global $sajax_remote_uri_params;
$t = strtoupper($sajax_request_type);
if ($t != "" && $t != "GET" && $t != "POST")
return "// Invalid type: $t.. \n\n";
$sdb = $sajax_debug_mode ? "true" : "false";
$fullurl = $sajax_remote_uri.'?'.$sajax_remote_uri_params;
$html = <<<ENDOFHTML
// remote scripting library
// (c) copyright 2005 modernmethod, inc
// Modifications to suit JoomlaPack needs, (c)2006-2009 JoomlaPack Developers / Nicholas K. Dionysopoulos
var sajax_debug_mode = $sdb;
var sajax_request_type = "$t";
var sajax_target_id = "";
var sajax_failure_redirect = "$sajax_failure_redirect";
var sajax_failed_eval = "";
var sajax_fail_handle = "";
var sajax_junk_handle = "";
var sajax_profiling = false;
function sajax_debug(text) {
if (sajax_debug_mode)
alert(text);
}
function sajax_init_object() {
sajax_debug("sajax_init_object() called..")
var A;
var msxmlhttp = new Array(
'Msxml2.XMLHTTP.5.0',
'Msxml2.XMLHTTP.4.0',
'Msxml2.XMLHTTP.3.0',
'Msxml2.XMLHTTP',
'Microsoft.XMLHTTP');
for (var i = 0; i < msxmlhttp.length; i++) {
try {
A = new ActiveXObject(msxmlhttp[i]);
} catch (e) {
A = null;
}
}
if(!A && typeof XMLHttpRequest != "undefined")
A = new XMLHttpRequest();
if (!A)
sajax_debug("Could not create connection object.");
return A;
}
var sajax_requests = new Array();
function sajax_cancel() {
for (var i = 0; i < sajax_requests.length; i++)
sajax_requests[i].abort();
}
function sajax_do_call(func_name, args) {
var i, x, n;
var uri;
var post_data;
var target_id;
sajax_debug("in sajax_do_call().." + sajax_request_type + "/" + sajax_target_id);
target_id = sajax_target_id;
if (typeof(sajax_request_type) == "undefined" || sajax_request_type == "")
sajax_request_type = "GET";
uri = "$fullurl";
if (sajax_request_type == "GET") {
if (uri.indexOf("?") == -1)
//XXX uri += "?rs=" + escape(func_name);
uri += "?rs=" + encodeURIComponent(func_name);
else
//XXX uri += "&rs=" + escape(func_name);
uri += "&rs=" + encodeURIComponent(func_name);
//XXX uri += "&rst=" + escape(sajax_target_id);
//XXX uri += "&rsrnd=" + new Date().getTime();
uri += "&rst=" + encodeURIComponent(sajax_target_id);
uri += "&rsrnd=" + encodeURIComponent(new Date().getTime());
for (i = 0; i < args.length-1; i++)
//XXX uri += "&rsargs[]=" + escape(args[i]);
uri += "&rsargs[]=" + encodeURI(args[i]);
if(sajax_profiling) uri += "&XDEBUG_PROFILE";
post_data = null;
}
else if (sajax_request_type == "POST") {
uri = "$sajax_remote_uri";
post_data = "$sajax_remote_uri_params";
//XXX post_data += "&rs=" + escape(func_name);
//XXX post_data += "&rst=" + escape(sajax_target_id);
//XXX post_data += "&rsrnd=" + new Date().getTime();
post_data += "&rs=" + encodeURIComponent(func_name);
post_data += "&rst=" + encodeURIComponent(sajax_target_id);
post_data += "&rsrnd=" + encodeURIComponent(new Date().getTime());
for (i = 0; i < args.length-1; i++)
{
//XXX post_data = post_data + "&rsargs[]=" + escape(args[i]);
post_data = post_data + "&rsargs[]=" + encodeURIComponent(args[i]);
}
if(sajax_profiling) post_data += "&XDEBUG_PROFILE";
}
else {
alert("Illegal request type: " + sajax_request_type);
}
x = sajax_init_object();
if (x == null) {
if (sajax_failure_redirect != "") {
location.href = sajax_failure_redirect;
return false;
} else {
sajax_debug('NULL sajax object for user agent:' + navigator.userAgent);
return false;
}
} else {
x.open(sajax_request_type, uri, true);
// window.open(uri);
sajax_requests[sajax_requests.length] = x;
if (sajax_request_type == "POST") {
x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
}
x.onreadystatechange = function() {
if (x.readyState != 4)
return;
sajax_debug("received " + x.responseText);
var status;
var data;
var txt = x.responseText.replace(/^\s*|\s*$/g,"");
status = txt.charAt(0);
data = txt;
if (status == "") {
// let's just assume this is a pre-response bailout and let it slide for now
} else if (status == "-")
alert("Error: " + data.substring(2));
else {
// # Fix Sep 2009 (JP2.4): Filtering of non-AJAX response content
try {
var valid_pos = data.indexOf('+:var res = ');
if( valid_pos == -1 ) {
// Test for interjected junk data
var start_of_data = data.indexOf('+:');
var continued_data = data.indexOf('var res = ');
if( (start_of_data != 0) || (continued_data == -1) )
{
// Only invalid data received
sajax_failed_eval = data;
sajax_fail_handle(data);
return;
}
else
{
// Isolate the junk portion
var junk_data = data.substr(2, continued_data - 2);
var value = eval(data.substr(continued_data));
}
} else if( valid_pos == 0 ) {
// No junk data
var junk_data = null;
var value = eval(data.substr(2));
} else {
// Some invalid data received; the callback will be handled by sajax_junk_handler
var junk_data = data.substr(0, valid_pos);
var value = eval( data.substr(valid_pos+2, data.length - valid_pos - 1) );
return;
}
} catch (e) {
sajax_debug("Caught error " + e + ": Could not eval " + data );
sajax_failed_eval = data;
sajax_fail_handle(data);
}
if (target_id != "")
document.getElementById(target_id).innerHTML = value;
else {
var callback;
var extra_data = false;
if (typeof args[args.length-1] == "object") {
callback = args[args.length-1].callback;
extra_data = args[args.length-1].extra_data;
} else {
callback = args[args.length-1];
}
if( junk_data != null ) {
// Handle partial non-AJAX response content
sajax_junk_handle(junk_data, callback, value, extra_data);
return;
}
else
{
// Handle full-compliant AJAX content
callback(value, extra_data);
}
}
}
}
}
sajax_debug(func_name + " uri = " + uri + "/post = " + post_data);
x.send(post_data);
sajax_debug(func_name + " waiting..");
delete x;
return true;
}
ENDOFHTML;
return $html;
}
function sajax_show_common_js() {
echo sajax_get_common_js();
}
// javascript escape a value
function sajax_esc($val)
{
$val = str_replace("\\", "\\\\", $val);
$val = str_replace("\r", "\\r", $val);
$val = str_replace("\n", "\\n", $val);
$val = str_replace("'", "\\'", $val);
return str_replace('"', '\\"', $val);
}
function sajax_get_one_stub($func_name) {
$html = <<<ENDSTUB
// wrapper for $func_name
function x_$func_name() {
sajax_do_call("$func_name",
x_$func_name.arguments);
}
ENDSTUB;
return $html;
}
function sajax_show_one_stub($func_name) {
echo sajax_get_one_stub($func_name);
}
function sajax_export() {
global $sajax_export_list;
$n = func_num_args();
for ($i = 0; $i < $n; $i++) {
$sajax_export_list[] = func_get_arg($i);
}
}
$sajax_js_has_been_shown = 0;
function sajax_get_javascript()
{
global $sajax_js_has_been_shown;
global $sajax_export_list;
$html = "";
if (! $sajax_js_has_been_shown) {
$html .= sajax_get_common_js();
$sajax_js_has_been_shown = 1;
}
foreach ($sajax_export_list as $func) {
$html .= sajax_get_one_stub($func);
}
return $html;
}
function sajax_show_javascript()
{
echo sajax_get_javascript();
}
$SAJAX_INCLUDED = 1;
}