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creotiv/ajax_intercepter

Created July 9, 2010 19:43
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Ajax Intercepter
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ajax_intercepter
<html>
<body>
<script>
var xml_type;
// branch for native XMLHttpRequest object
if(window.XMLHttpRequest && !(window.ActiveXObject)) {
xml_type = 'XMLHttpRequest';
// branch for IE/Windows ActiveX version
} else if(window.ActiveXObject) {
try {
a = new ActiveXObject('Msxml2.XMLHTTP');
xml_type = 'Msxml2.XMLHTTP';
} catch(e) {
a = new ActiveXObject('Microsoft.XMLHTTP');
xml_type = 'Microsoft.XMLHTTP';
}
}
var ActualActiveXObject = window.ActiveXObject;
var ActiveXObject;
if (xml_type == 'XMLHttpRequest') {
(function(open) {
XMLHttpRequest.prototype.open = function(method, url, async, user, pass) {
alert('Intercept');
open.call(this, method, url+".ua", async, user, pass);
};
})(XMLHttpRequest.prototype.open);
} else {
ActiveXObject = function(progid) {
var ax = new ActualActiveXObject(progid);
if (progid.toLowerCase() == "microsoft.xmlhttp") {
var o = {
_ax: ax,
_status: "fake",
responseText: "",
responseXml: null,
readyState: 0,
dataType: 'plain',
status: 0,
statusText: 0,
onReadyStateChange: null,
onreadystatechange: null
};
o._onReadyStateChange = function() {
var self = o;
return function() {
self.readyState = self._ax.readyState;
if (self.readyState == 4) {
self.responseText = self._ax.responseText;
self.responseXml = self._ax.responseXml;
self.status = self._ax.status;
self.statusText = self._ax.statusText;
}
if (self.onReadyStateChange) {
self.onReadyStateChange();
}
if (self.onreadystatechange) {
self.onreadystatechange();
}
}
}();
o.open = function(bstrMethod, bstrUrl, varAsync, bstrUser, bstrPassword) {
this._ax.onReadyStateChange = this._onReadyStateChange;
this._ax.onreadystatechange = this._onReadyStateChange;
alert('Intercept');
return this._ax.open(bstrMethod, bstrUrl, varAsync, bstrUser, bstrPassword);
};
o.send = function(varBody) {
return this._ax.send(varBody);
};
o.abort = function() {
return this._ax.abort();
}
o.setRequestHeader = function(k,v) {
return this._ax.setRequestHeader(k,v)
}
o.setrequestheader = function(k,v) {
return this._ax.setRequestHeader(k,v)
}
o.getResponseHeader = function(k) {
return this._ax.getResponseHeader(k)
}
o.getresponseheader = function(k) {
return this._ax.getResponseHeader(k)
}
} else if (progid.toLowerCase() == "msxml2.xmlhttp") {
var o = {
_ax: ax,
_status: "fake",
responseText: "",
responseXml: null,
readyState: 0,
dataType: 'plain',
status: 0,
statusText: 0,
onReadyStateChange: null,
onreadystatechange: null
};
o._onReadyStateChange = function() {
var self = o;
return function() {
self.readyState = self._ax.readyState;
if (self.readyState == 4) {
self.responseText = self._ax.responseText;
self.responseXml = self._ax.responseXml;
self.status = self._ax.status;
self.statusText = self._ax.statusText;
}
if (self.onReadyStateChange) {
self.onReadyStateChange();
}
if (self.onreadystatechange) {
self.onreadystatechange();
}
}
}();
o.open = function(bstrMethod, bstrUrl, varAsync, bstrUser, bstrPassword) {
this._ax.onReadyStateChange = this._onReadyStateChange;
this._ax.onreadystatechange = this._onReadyStateChange;
alert('Intercept');
return this._ax.open(bstrMethod, bstrUrl, varAsync, bstrUser, bstrPassword);
};
o.send = function(varBody) {
return this._ax.send(varBody);
};
o.abort = function() {
return this._ax.abort();
}
o.setRequestHeader = function(k,v) {
return this._ax.setRequestHeader(k,v)
}
o.setrequestheader = function(k,v) {
return this._ax.setRequestHeader(k,v)
}
o.getResponseHeader = function(k) {
return this._ax.getResponseHeader(k)
}
o.getresponseheader = function(k) {
return this._ax.getResponseHeader(k)
}
} else {
var o = ax;
}
return o;
}
}
</script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.js"></script>
<script>
$.get('http://localhost', function(data) {
alert('Load was performed.');
});
</script>
</body>
</html>
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