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messages.js
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messages.js
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//// PhantomJS setup ////
var system = require('system');
var page = require('webpage').create();
var fs = require('fs');
// necessary to actually see console messages
page.onConsoleMessage = function(msg, lineNum, sourceId) {
console.log(msg);
};
//// Commonly Used Variables ////
var news = 'http://www.newsmax.com/US/couple-buys-street-nancy-pelosi/2017/08/07/id/806317/';
var ouputFile = "listen2.txt";
/*dep
var finished = false; // whether loading has finished
var _messages = [];
var _frameNames = []; // names of frames that have had eventListeners attached to them
var _frames; // will be the list of iframe elements on page
*/
//// Main Logic ////
// allow this PhantomJS session to last only 60 seconds
setTimeout(function() {
phantom.exit();
}, 60000);
// load the page
page.open(news, function(status) {
if (status !== 'success') {
console.log("loading failed.")
} else {
console.log("evaluate");
// include jQuery
page.includeJs("https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js");
//console.log(page);
// this will capture messages (to/from the window only? or even to/from iframes?),
// but the messages can be stored by console.log and redirected output
// e.lastEventId tends to be null
page.evaluate(function(){
window.addEventListener('message', function(e) {
console.log(e.data+"\t"+e.origin+"\t"+e.source+"\t"+e.ports);
});});
// doesn't seem to be working properly
page.evaluate(function(){
var frames = document.getElementsByTagName('iframe');
for (var i = 0; i < frames.length; i++) {
frames[i].addEventListener('message', function(e) {
parent.postMessage("iframe: "+e.data+"\t"+e.origin+"\t"+e.source+"\t"+e.ports, frames[i]);
});
}
});
// 500 times (*10msec = 5sec), set a short timeout to emulate an async while loop
/*dep page.evaluate(function() {
var frames;
var frameNames = [];
var messages = [];
for (var j = 0; j < 500; j++) {
setTimeout(function() {
// populate frames
frames = document.getElementsByTagName('iframe');
console.log(frames.length);
// for each frame, attach eventListener
for (var i = 0; i < frames.length; i++) {
console.log("this needs to run");
// don't attach multiple eventListeners
if (!(frames[i].name in frameNames)) {
console.log("name: "+frames[i].name);
frameNames.push(frames[i].name);
frames[i].addEventListener('message', function(e) {
//content = document.createTextNode(e);
//span.appendChild(content);
console.log("<<<<<<<<<listened");
messages.push(e);
});
}
}
}, 10*j);
}
});*/
/*dep
//var content; // dep populated by document method below
// as early as possible, add event listeners to every iframe
//dep setTimeout(function() {finished = true;}, 5000);
while (!finished) {
console.log('wtf2');
// populate frames
frames = document.getElementsByTagName('iframe');
console.log(frames.length);
for (i = 0; i < frames.length; i++) {
console.log("this needs to run");
// for each frame, attach eventListener
if (!(frames[i].name in frameNames)) {
console.log("name: "+frames[i].name);
frameNames.push(frames[i].name);
frames[i].addEventListener('message', function(e) {
//content = document.createTextNode(e);
//span.appendChild(content);
messages.push(e);
});
}
}
}
// do this once after finished===true (with 1.5 sec delay)
/*setTimeout(function() {
console.log('frames timeout');
frames = document.getElementsByTagName('iframe');
for (i = 0; i < frames.length; i++) {
// for each frame, attach eventListener
if (!(frames[i].name in frameNames)) {
frameNames.push(frames[i].name);
frames[i].addEventListener('message', function(e) {
//content = document.createTextNode(e);
//span.appendChild(content);
//span.innerHTML += "new entry\n\n" + e;
});
}
}
}, 1500);*/
// dep
// give jQuery a few seconds to load, then do stuff
/*setTimeout(function() {
// evaluate in context of page
page.evaluate(function() {
// get iframe names for frame switching
var frameNames = [];
var ff = document.getElementsByTagName('iframe');
for (var m = 0; m < ff.length; m++) {
frameNames.push(ff[m].name);
console.log(ff[m].name);
}
// create span
var span = document.createElement('span');
span.id = "scrolljacking-experiment";
// add all elements to span
for (var i = 0; i < frames.length; i++) {
frames[i].addEventListener("message", function(e) {
span.innerHTML += e;
});
}
// upon page finished loading
$( document ).ready(function() {
// add the span to the body
console.log('add span');
$( document.body ).append(span);
// get all iframes, then attach eventListeners
console.log('get frames');
var frames = $('iframe');
for (var i = 0; i < frames.length; i++) {
frames[i].addEventListener("message", function(e) {
console.log($(this));
});
$("#sjev1").append(frames[i].contentDocument.body.innerHTML+" ");
}
for (var i = 0; i < frames.length; i++) {
frames[i].contentWindow.postMessage("getIt", '*');
}
});
});
}, 7000);*/
/*dep setTimeout(function() {
fs.write(ouputFile, page.content, 'w');
console.log('written.');
}, 17000);*/
}
});
// dep logic
function simulateMouseClick(selector) {
var targets = document.querySelectorAll(selector);
var evt = document.createEvent('MouseEvents');
var i, len;
evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
for ( i = 0, len = targets.length; i < len; ++i ) {
targets[i].dispatchEvent(evt);
}
}