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was less jshint-ed #1

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39 changes: 22 additions & 17 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,9 @@
"use strict";
// This file implements LLaMA, a client-side defense against WF,
// as an add-on for the Tor browser. It can be easily installed
// by following the same procedure as with any other FF add-ons.

const { Cc, Ci } = require('chrome')
const { Cc, Ci } = require('chrome');
const observerService = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
const URL = "https://tablog-webfpext.rhcloud.com/getsize.php";
Expand Down Expand Up @@ -37,12 +38,12 @@ var sendRequest = function(target) {
// log extra request
console.log("X-REQ: " + target);
req.get();
}
};

// send a custom-sized request
var sendSizeRequest = function(size) {
sendRequest(URL + '?size=' + size);
}
};

// send a request depending on the outcome of tossing a coin
var probSendRequest = function(sendRequestCallback, arg, delay) {
Expand All @@ -55,23 +56,23 @@ var probSendRequest = function(sendRequestCallback, arg, delay) {
sendRequestCallback(arg);
});
}
}
};

// trigger another request with some prob
var customNewRequest = function() {
var size = Math.floor(Math.random() * 1000001);
probSendRequest(sendSizeRequest, size);
}
};

// repeat a previous request with some prob
var repeatRandomRequest = function(domain) {
var requests = DOMAINS[domain];
// select a previous request uniformly at random
if (!(typeof requests === "undefined") && (requests.length > 0)) {
if ( (typeof requests !== "undefined") && (requests.length > 0)) {
var url = requests[Math.floor(Math.random() * requests.length)];
probSendRequest(sendRequest, url, 0);
}
}
};

// delay the execution of a function
var delayedFunction = function(delay, fun) {
Expand All @@ -81,7 +82,7 @@ var delayedFunction = function(delay, fun) {
fun();
}
}, delay, Ci.nsITimer.TYPE_ONE_SHOT);
}
};

var httpObs = {
observe: function(aSubject, aTopic, aData) {
Expand All @@ -95,10 +96,10 @@ var httpObs = {

// add url for this domain
if (aSubject.URI instanceof Ci.nsIURI) {
var requestHeaders = visitor.visitRequest();
let requestHeaders = visitor.visitRequest();
var domain = aSubject.URI.host;
var url = aSubject.URI.spec;
var sheaders = get_str(requestHeaders);
let url = aSubject.URI.spec;
let sheaders = get_str(requestHeaders);
console.log("REQ: " + url + ", headers=" + sheaders);

// add domain to known domains
Expand All @@ -113,7 +114,7 @@ var httpObs = {
if (DELAY) {
aSubject.suspend();
// sample a delay
d = Math.floor(Math.random() * MEDIAN_TOTAL);
var d = Math.floor(Math.random() * MEDIAN_TOTAL);
delayedFunction(d, function() {
aSubject.resume();
console.log("RESUMED: " + url);
Expand All @@ -127,17 +128,17 @@ var httpObs = {
}
}
} else if (aTopic == "http-on-examine-response") {
var url = aSubject.URI.asciiSpec;
var responseHeaders = visitor.visitResponse();
var sheaders = get_str(responseHeaders);
let url = aSubject.URI.asciiSpec;
let responseHeaders = visitor.visitResponse();
let sheaders = get_str(responseHeaders);
console.log("RESP: " + url + ", headers=" + sheaders);
}
},
}
};

function HeaderInfoVisitor(oHttp) {
this.oHttp = oHttp;
this.headers = new Array();
this.headers = [];
}

HeaderInfoVisitor.prototype = {
Expand All @@ -157,3 +158,7 @@ HeaderInfoVisitor.prototype = {
// register HTTP observers
observerService.addObserver(httpObs, "http-on-modify-request", false);
observerService.addObserver(httpObs, "http-on-examine-response", false);

function get_str(object) {
return JSON.stringify(object);
}