182 lines
5.2 KiB
PHP
182 lines
5.2 KiB
PHP
<?php
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/**
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* @package Campcaster
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* @subpackage htmlUI
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*/
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class jscom {
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private $prefix = 'jsc_';
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private $callables = array();
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private $method = 'POST';
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private $uri = '';
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public function __construct($calls = NULL, $pars = NULL)
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{
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$this->uri = $_SERVER['REQUEST_URI'];
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if (!is_null($calls)) {
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$this->addCallables($calls);
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}
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if (is_array($pars)) {
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foreach ($pars as $parname=>$par) {
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if (!is_null($par)) {
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$this->setPar($parname, $par);
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}
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}
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}
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}
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function noCacheHeader ()
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{
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header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
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header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
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header("Cache-Control: no-cache, must-revalidate");
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header("Pragma: no-cache");
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}
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function handler()
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{
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$args = array();
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$mode = '';
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if (!empty($_GET[$this->prefix."mn"])) {
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$mode = 'get';
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$rqst = $_GET;
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$this->noCacheHeader();
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}
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if (!empty($_POST[$this->prefix."mn"])) {
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$mode = 'post';
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$rqst = $_POST;
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}
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if (empty($mode)) {
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return;
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}
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$methodName = $rqst[$this->prefix.'mn'];
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$args = $rqst[$this->prefix.'args'];
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if (in_array($methodName, $this->callables)) {
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$res = call_user_func_array($methodName, $args);
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}else{
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$res = "ERROR: $methodName not callable";
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}
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if (is_array($res)) {
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$r = array();
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foreach ($res as $k=>$v) {
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$r[] = "'$v'";
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}
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$res = "[".join(', ', $r)."]";
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}
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echo $res;
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exit;
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}
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function genJsCode()
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{
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ob_start();
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?>
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var method = "<?php echo $this->method; ?>";
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function createComObj() {
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var co;
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try{
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co = new ActiveXObject("Msxml2.XMLHTTP");
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}catch(err1) {
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try{
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co = new ActiveXObject("Microsoft.XMLHTTP");
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}catch(err2) {
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co = null;
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}
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}
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if (!co && typeof XMLHttpRequest != "undefined")
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co = new XMLHttpRequest();
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if (!co) {
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alert("Could not create connection object.");
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}
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return co;
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}
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// callbackOrId - callback function reference for processing result or html tag id to store result
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function jsCom(methodName, args, callbackOrId) {
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var i, n;
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var comObj;
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var uri;
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var post_data = null;
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uri = "<?php echo $this->uri; ?>";
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arstr = "<?php echo$this->prefix; ?>mn="+escape(methodName);
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for (i = 0; i < args.length; i++) {
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arstr += "&<?php echo$this->prefix; ?>args[]=" + escape(args[i]);
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}
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if (method == "GET") {
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uri += ((uri.indexOf("?") == -1) ? "?" : "&" ) + arstr;
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uri += "&<?php echo$this->prefix; ?>x=" + new Date().getTime();
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} else {
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post_data = arstr;
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}
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comObj = createComObj();
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comObj.callbackOrId = callbackOrId;
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comObj.open(method, uri, true);
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if (method == "POST") {
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comObj.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
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comObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
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}
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comObj.onreadystatechange = function() {
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if (comObj.readyState != 4) {
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return;
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}
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var data = comObj.responseText;
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if (typeof comObj.callbackOrId == "function") {
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callbackOrId(data);
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} else if (typeof comObj.callbackOrId == "object") {
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eval("res="+data);
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for (i = 0; i < comObj.callbackOrId.length; i++) {
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setResult(comObj.callbackOrId[i], res[i])
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}
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} else if (typeof comObj.callbackOrId != "undefined") {
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setResult(comObj.callbackOrId, data)
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} else {
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alert('result from server: '+data);
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}
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}
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comObj.send(post_data);
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delete comObj;
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}
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function setResult(id, data) {
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var el = document.getElementById(id) ;
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if (el.tagName == 'INPUT') { el.value = data; }
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else{ el.innerHTML = data; }
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}
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<?php
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$code = ob_get_contents();
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ob_end_clean();
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return $code;
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}
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function addCallables()
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{
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$n = func_num_args();
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for ($i = 0; $i < $n; $i++) {
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$a = func_get_arg($i);
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if (is_array($a)) {
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$this->callables = array_merge($this->callables, $a);
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} else {
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$this->callables[] = $a;
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}
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}
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}
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function setPar($parName, $value = NULL)
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{
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switch ($parName) {
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case "method":
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case "uri":
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$this->{$parName} = $value;
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break;
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}
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}
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}
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?>
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