Code inject via Content Script gets removed - google-chrome-extension

I am creating a Chrome Extension that would draw an image above tag showing Flash content. I have written the content script in my "contentscript.js" file which does nothing but simply inserts another script file "backgroundscript.js" into page's body via a script tag.
The code works on few of sites having flash videos and shows the image right above the Flash Player window but on other sites it does not show up. Also on few it shows up for a fraction of a second and then gets disappeared.
Below is my manifest file:
{
"name": "My First Chrome Extension",
"version": "1.0.0.0",
"description": "Tag videos from websites with a single click!",
"icons": { "16":"application_16.png","48":"application_48.png","128":"application_128.png" },
"homepage_url": "http://www.myurl.com",
"page_action":{
"default_icon":{
"19":"application_19.png",
"38":"application_38.png"
},
"default_title":"VDownloader browser plugin"
},
"content_scripts": [ { "js": [ "contentscript.js" ], "matches": [ "http://*/*" ], "run_at" : "document_end", "all_frames": true} ],
"plugins": [ { "path": "myplugin.dll", "public": true } ],
"manifest_version":2,
"minimum_chrome_version":"17",
"offline_enabled":true,
"permissions":["tabs","http://*/*", "https://*/*","contextMenus"],
"web_accessible_resources":["application.png","backgroundscript.js"]
}
Also I checked by inserting "debugger;" into my script and monitoring code execution via console; the script gets added at least once into the page body. Even in the cases where no image button is shown.
Is this some kind of anit-XSS control implemented on the the more advanced sites not showing my button?
I would really appreciate your help as I have been trying to get over this from past couple of weeks without success :(
EDIT:
Please see the content script below:
var s = document.createElement('script');
s.src = chrome.extension.getURL("backgroundscript.js");
s.onload = function() {
this.parentNode.removeChild(this);
};
(document.head||document.documentElement).appendChild(s);
Target sites:
Does not show the button: http://www.metacafe.com
Shows the button for a moment: http://www.dailymotion.com
Shows the button correctly: http://www.myreviewalarm.com
Please take a look at backgroundscript.js content:
var vdDelayTimer;
var vdUpdateInterval;
var playerButtons;
embedPlugin();
function embedPlugin() {
var embed = document.createElement('embed');
embed.setAttribute('type', 'application/x-myplugin');
embed.setAttribute('id', 'myplugin');
embed.setAttribute('style', 'width:1px;height:1px;position:absolute;left:0px;top:0px;');
if(document.body!=null)
{
document.body.appendChild(embed);
}
testPlugin();
}
function testPlugin() {
var plugin = document.getElementById('vdPlugin');
if (plugin != null) {
playerButtons = [];
vdDelayTimer = setTimeout("appendButtons()", 2000);
}
else {
window.alert('Plugin does not exist!');
}
}
function updateButtons() {
for (i = 0; i < playerButtons.length; i += 2) {
updateButtonLocation(playerButtons[i], playerButtons[i + 1]);
}
}
function updateButtonLocation(player, button) {
var playerX = getX(player);
var playerY = getY(player);
var buttonHeight = 38;
var buttonWidth = 196;
var buttonX = playerX + player.offsetWidth - buttonWidth - 12;
var buttonY = playerY - buttonHeight + 1;
button.setAttribute('style', 'background-image: url(http://myurl.com/img/browser-download-button.png); width:' + buttonWidth + 'px;height:' + buttonHeight + 'px;position:absolute;left:' + buttonX + 'px;top:' + buttonY + 'px; cursor:pointer; cursor:hand;');
}
function appendButtons() {
debugger;
var objectTags = document.getElementsByTagName('object');
for (var i = 0; i < objectTags.length; i++) {
var objectTag = objectTags[i];
if ((objectTag.hasAttribute('classid') && objectTag.getAttribute('classid') == 'clsid:D27CDB6E-AE6D-11cf-96B8-444553540000')
|| (objectTag.hasAttribute('type') && objectTag.getAttribute('type') == 'application/x-shockwave-flash')) {
if (objectTag.offsetWidth >= 320 && objectTag.offsetHeight >= 240)
createButton(objectTag, getX(objectTag), getY(objectTag), objectTag.offsetWidth);
}
}
var embedTags = document.getElementsByTagName('embed');
for (var i = 0; i < embedTags.length; i++) {
try {
var embedTag = embedTags[i];
if (embedTag.hasAttribute('type') && embedTag.getAttribute('type') == 'application/x-shockwave-flash') {
if (embedTag.offsetWidth >= 320 && embedTag.offsetHeight >= 240)
createButton(embedTag, getX(embedTag), getY(embedTag), embedTag.offsetWidth);
}
}
catch (err) { }
}
var videoTags = document.getElementsByTagName('video');
for (var i = 0; i < videoTags.length; i++) {
try {
var videoTag = videoTags[i];
if (videoTag.hasAttribute('src')) {
if (videoTag.offsetWidth >= 320 && videoTag.offsetHeight >= 240)
createButton(videoTag, getX(videoTag), getY(videoTag), videoTag.offsetWidth);
}
}
catch (err) { }
}
vdUpdateInterval = setInterval("updateButtons();", 500);
}
function createButton(videoTag, playerX, playerY, playerWidth) {
debugger;
var buttonHeight = 38;
var buttonWidth = 196;
var buttonX = playerX + playerWidth - buttonWidth - 12;
var buttonY = playerY - buttonHeight + 1;
var vdPlugin = document.getElementById('vdPlugin');
var strLocation = window.location.toString();
// if (isSupported(strLocation)) {
var downloadButton = document.createElement('img');
downloadButton.setAttribute('title', 'Tag this video');
downloadButton.setAttribute('src', 'http://myurl.com/img/browser-download-button.png');
downloadButton.setAttribute('style', 'background-image: url(http://myurl.com/img/browser-download-button.png); width:' + buttonWidth + 'px;height:' + buttonHeight + 'px;position:absolute;left:' + buttonX + 'px;top:' + buttonY + 'px; cursor:pointer;cursor:hand;z-index:2147483647;');
downloadButton.setAttribute('onclick', 'javascript:document.getElementById(\'vdPlugin\').downloadNow(window.location.href);');
downloadButton.setAttribute('oncontextmenu', 'javascript:return false;');
document.body.appendChild(downloadButton);
playerButtons.push(videoTag, downloadButton);
// }
}
function getY(oElement) {
var iReturnValue = 0;
while (oElement != null) {
iReturnValue += oElement.offsetTop;
oElement = oElement.offsetParent;
}
return iReturnValue;
}
function getX(oElement) {
var iReturnValue = 0;
while (oElement != null) {
iReturnValue += oElement.offsetLeft;
oElement = oElement.offsetParent;
}
return iReturnValue;
}
function isSupported(url) {
var regLen = supportedSites.length;
var regEx;
var res = false;
try {
for (var i = 0; i < regLen && res == false; i++) {
regEx = new RegExp(supportedSites[i], "i");
res = regEx.test(url);
}
}
catch (ex) {
}
return res;
}

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Other product variant is disabled and I can not select it for 2 products (JS)

I am a coding beginner and I am building a store. My problem is that I have a product in different fabrics. Now I can only select one fabric type and the other is disabled and I can not select no matter what I do. Perfect would be if I select the fabric type, the associated products are displayed.
That what i mean
/*============================================================================
Dynamic variant availability
- To disable, set dynamicVariantsEnable to false in theme.liquid
==============================================================================*/
setCurrentVariantAvailability: function(variant) {
var valuesToEnable = {
option1: [],
option2: [],
option3: []
};
// Disable all options to start
this.disableVariantGroup($(selectors.formContainer, this.$container).find('.variant-input-wrap'));
// Combine all available variants
var availableVariants = this.variantsObject.filter(function(el) {
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return false;
}
// Option 1
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return true;
}
// Option 2
if (variant.option1 === el.option1 && variant.option3 === el.option3) {
return true;
}
// Option 3
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return true;
}
});
// IE11 can't handle shortform of {variant} so extra step is needed
var variantObject = {
variant: variant
};
availableVariants = Object.assign({}, variantObject, availableVariants);
// Loop through each available variant to gather variant values
for (var property in availableVariants) {
if (availableVariants.hasOwnProperty(property)) {
var item = availableVariants[property];
var option1 = item.option1;
var option2 = item.option2;
var option3 = item.option3;
if (option1) {
if (valuesToEnable.option1.indexOf(option1) === -1) {
valuesToEnable.option1.push(option1);
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}
if (option2) {
if (valuesToEnable.option2.indexOf(option2) === -1) {
valuesToEnable.option2.push(option2);
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}
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if (valuesToEnable.option3.indexOf(option3) === -1) {
valuesToEnable.option3.push(option3);
}
}
}
}
// Have values to enable, separated by option index
if (valuesToEnable.option1.length) {
this.enableVariantOptionByValue(valuesToEnable.option1, 'option1');
}
if (valuesToEnable.option2.length) {
this.enableVariantOptionByValue(valuesToEnable.option2, 'option2');
}
if (valuesToEnable.option3.length) {
this.enableVariantOptionByValue(valuesToEnable.option3, 'option3');
}
},
updateVariantAvailability: function(evt, value, index) {
if (value && index) {
var newVal = value;
var optionIndex = index;
} else {
var $el = $(evt.currentTarget);
var newVal = $el.val() ? $el.val() : evt.currentTarget.value;
var optionIndex = $el.data('index');
}
var variants = this.variantsObject.filter(function(el) {
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// Disable all buttons/dropdown options that aren't the current index
$(selectors.formContainer, this.$container).find('.variant-input-wrap').each(function(index, el) {
var $group = $(el);
var currentOptionIndex = $group.data('index');
if (currentOptionIndex !== optionIndex) {
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}
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$group.find('option').prop('disabled', true)
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$group.find('input').prop('disabled', true);
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}
},
Have already tried various things, but not come to the desired result, even disabling the function ensures that everything is displayed and also clickable.
I hope you can help me.
Best Regards

Node.js for loop output only last item from JSON

The code below only output the last result, I don't get it. I check if the updateDate item contains 2020-05 both items does and I get only the last one. The loop is not looping :)
const briefing = [
{
"updateDate": "2020-05-05T00:00:00.0Z",
},
{
"updateDate": "2020-05-06T00:00:00.0Z",
},
{
"updateDate": "2020-05-13T00:00:00.0Z",
}
];
let date = new Date();
var formattedYearMonth = date.getFullYear() + '-' + ('0' + (date.getMonth()+1)).slice(-2) + '-';
for (var i = 0; i < briefing.length; i++) {
var jsonDate = briefing[i].updateDate;
if (jsonDate.includes(formattedYearMonth)) {
var response = JSON.stringify(briefing[i]);
}
}return response;
}
for (var i = 0; i < briefing.length; i++) {
var jsonDate = briefing[i].updateDate;
if (jsonDate.includes(formattedYearMonth)) {
var response = JSON.stringify(briefing[i]); // <==== THIS IS WHERE YOUR PROBLEM LIES
}
}return response;
The loop is actually looping :). But for every run of the loop, you are resetting the value of response.
--EDITED--
For the response to be an array, you need to modify your code as
let response = [];
for (var i = 0; i < briefing.length; i++) {
var jsonDate = briefing[i].updateDate;
if (jsonDate.includes(formattedYearMonth)) {
response.push(JSON.stringify(briefing[i]));
}
}
return response;

chrome.browserAction, disabling Icon

I am attempting to disable or enable my chrome extension based on the matches of the content scripts, but I think there is a better way. Below is my code. Seems like what I am attempting to accomplish could be achieved by chrome.declarativeContent.onPageChanged but that does not seem to fire consistently.
const IsMatch = (tab, matches) => {
if (tab ==undefined && tab == null && tab.url == undefined){
return false;
}
for(var ctr = 0; ctr < matches.length ; ctr ++){
var match = matches[ctr].substring(0, matches[ctr].length - 1);
if (tab.url.startsWith(match) ) {
return true;
}
}
return false;
}
const updateIcon = tabId => {
chrome.browserAction.disable();
chrome.tabs.query({ currentWindow: true, active: true }, function (tabs) {
var contentScripts = chrome.runtime.getManifest().content_scripts;
for(var i = 0; i < contentScripts.length ; i ++){
var contentScript = contentScripts[i];
if ( IsMatch(tabs[0], contentScript.matches) ) {
chrome.browserAction.enable();
console.log('chrome.tabs.query');
console.log(tabs[0]);
return;
}
}
});
};
chrome.tabs.onUpdated.addListener(updateIcon);
After the changes recommended by #wOxxOm I am now in a race condition here is the updated code
browser.runtime.onMessage.addListener(function(request, sender, sendResponse) {
if (request.message === 'enableIcon') {
console.log(sender.tab.id + ' ' + request.message);
chrome.browserAction.setIcon({tabId: sender.tab.id, path: 'icon-16.png'});
browser.browserAction.enable();
}
return true;
});
browser.tabs.onUpdated.addListener(function(tabId) {
console.log(tabId + ' disableIcon');
chrome.browserAction.setIcon({tabId: tabId, path: 'icon-16-Disabled.png'});
chrome.browserAction.disable();
});
Here is the ouput:
- 6: backgroundIcon.js:31 39 disableIcon
- 1: backgroundIcon.js:22 39 enableIcon
- 2: backgroundIcon.js:31 39 disableIcon

node.js call some methods using OOP way

I need to call some methods using OOP way e.g. this.method() but i get some errors, this my BingoCard.js help please.
var _ = require('underscore');
// ------------------------------------ ---------
// Constructor
// ---------------------------------------------
function BingoCard() {
if(false === (this instanceof BingoCard)) {
return new BingoCard();
}
this.firstRowSchema = [];
this.secondRowSchema = [];
this.thirdRowSchema = [];
this.firstRow = [];
this.secondRow = [];
this.thirdRow = [];
this.patterns = [
{
"1" : ['x','0','x','0','x','0','x','x','0'],
"2" : ['0','x','0','x','0','x','0','x','x'],
"3" : ['x','0','x','0','x','0','x','0','x']
},
{
"1" : ['x','x','0','x','0','x','0','x','0'],
"2" : ['0','x','x','0','x','0','x','0','x'],
"3" : ['x','0','x','x','0','x','0','x','0']
}
];
this.columns = {
"1": [1,2,3,4,5,6,7,8,9],
"2": [10,11,12,13,14,15,16,17,18,19],
"3": [20,21,22,23,24,25,26,27,28,29],
"4": [30,31,32,33,34,35,36,37,38,39],
"5": [40,41,42,43,44,45,46,47,48,49],
"6": [50,51,52,53,54,55,56,57,58,59],
"7": [60,61,62,63,64,65,66,67,68,69],
"8": [70,71,72,73,74,75,76,77,78,79],
"9": [80,81,82,83,84,85,86,87,88,89,90]
};
// Use Underscore to bind all of our methods
// to the proper context
_.bindAll(this);
}
// ---------------------------------------------
// Methods
// ---------------------------------------------
BingoCard.prototype = {
resetSchemas: function () {
this.firstRowSchema = [];
this.secondRowSchema = [];
this.thirdRowSchema = [];
},
generateRows: function () {
this.cardID = _.random(8888, 999999999); // generate a Card ID.
var pattern = _.shuffle(this.patterns);
this.firstRow = pattern[0][1];
this.secondRow = pattern[0][2];
this.thirdRow = pattern[0][3];
},
createColNumber: function (col,equalNumbers) {
console.log(this.patterns);
var colNumber = this.getColNumber(col);
if(typeof equalNumbers !== 'undefined' && equalNumbers.length > 0){
equalNumbers.forEach(function(val,key){
while(colNumber == val){
colNumber = this.getColNumber(col);
}
});
}
return colNumber;
},
getColNumber: function () {
var items = _.shuffle(this.columns[col]);
return items[0];
},
generateFirstRow: function () {
var col = 0;
this.firstRow.forEach(function(val,key){
col++;
if(val == 'x'){
this.firstRowSchema[key] = this.createColNumber(col);
} else {
this.firstRowSchema[key] = 0;
}
});
return this.firstRowSchema;
}
};
// ---------------------------------------------
// Export
// ---------------------------------------------
module.exports = BingoCard;
I call the bingocard class in app.js and this is my app.js contents.
var BingoCard = require('./bingocard');
var bingocard = new BingoCard();
bingocard.generateRows();
console.log(bingocard.generateFirstRow());
When in run "node app" from console i get this error:
TypeError: Object #<Object> has no method 'createColNumber'
at /var/www/bingo/bingocard.js:10:48
but createColNumber method defined .. :(?
On the fourth row in the code below, this is not referring to the prototype. this is pointing to something else.
this.firstRow.forEach(function(val,key){
col++;
if(val == 'x'){
this.firstRowSchema[key] = this.createColNumber(col);
} else {
this.firstRowSchema[key] = 0;
}
});
You can solve this by switching out this with self. and assign this to self in the beginning of the method definition. Like this:
generateFirstRow: function () {
var col = 0,
self = this;
this.firstRow.forEach(function(val,key){
col++;
if(val == 'x'){
self.firstRowSchema[key] = self.createColNumber(col);
} else {
self.firstRowSchema[key] = 0;
}
});
return this.firstRowSchema;
}

JQuery Dynatree - search node by name

I would like to start using Dynatree on my page, however I will probably need searching my tree by name. Do you know maybe how to do this?
I needed to have not only matching nodes, but also the whole paths to these nodes. I wrote this functionality and it works for me.
Modifications for library:
var clear = true;
DynaTreeNode.prototype.search = function(pattern){
if(pattern.length < 1 && !clear){
clear = true;
this.visit(function(node){
node.expand(true);
node.li.hidden = false;
node.expand(false);
});
} else if (pattern.length >= 1) {
clear = false;
this.visit(function(node){
node.expand(true);
node.li.hidden = false;
});
for (var i = 0; i < this.childList.length; i++){
var hide = {hide: false};
this.childList[i]._searchNode(pattern, hide);
}
}
},
DynaTreeNode.prototype._searchNode = function(pattern, hide){
if (this.childList){
// parent node
var hideNode = true;
for(var i = 0; i < this.childList.length; i++){
var hideChild = {hide: false};
this.childList[i]._searchNode(pattern, hideChild);
hideNode = hideNode && hideChild.hide;
}
if(hideNode && !this._isRightWithPattern(pattern)){
this._hideNode();
hide.hide = true;
} else {
hide.hide = false;
}
} else {
// leaf
if (!this._isRightWithPattern(pattern)){
this._hideNode();
hide.hide = true;
} else {
hide.hide = false;
}
}
},
DynaTreeNode.prototype._isRightWithPattern = function(pattern){
if((this.data.title.toLowerCase()).indexOf(pattern.toLowerCase()) >= 0){
return true;
}
return false;
},
DynaTreeNode.prototype._hideNode = function(){
if(this.li) {
this.li.hidden = true;
}
}
Use:
$("tree").dynatree("getRoot").search(pattern);
There is currently no search function, but you could use something like this (not tested)
var match = null;
tree.visit(function(node){
if(node.data.title === "foo"){
match = node;
return false; // stop traversal (if we are only interested in first match)
}
});
alert("Found " + match);
I've done it this way
<style>
span.occurance a.dynatree-title{background-color:#3AFF22;}
</style>
DynaTreeNode.prototype.find = function (needle) {
needle = (needle || '');
if (needle.length >= 1) {
var occurs = [];
this.visit(function (node) {
$(node.span).removeClass('occurance'); //remove pervious findings
if (node.data.title.indexOf(needle) != -1) {
occurs.push(node);
node._expandPath();
}
});
for (indx in occurs) { // mark findings
$(occurs[indx].span).addClass('occurance');
}
} else {
$('span.dynatree-node.occurance').removeClass('occurance');
}
},
DynaTreeNode.prototype._expandPath = function () {
var path = [],
node = this;
while (node = node.getParent()) {
path.push(node);
}
for (indx in path) {
path[indx].expand(true)
}
}
usage:
[your selector].dynatree("getRoot").find('needle');
Thanks to #mar10 i made a small, simple function to search a node with title:
// If searchFrom is null, root is used
function seachFolderNodeWithName(name, searchFrom) {
if (name == null) {
return undefined;
}
if (searchFrom == null) {
searchFrom = jQuery('#tree').dynatree("getRoot");
}
var match = undefined;
searchFrom.visit(function (node) {
if (node.data.title === name) {
match = node;
return false; // Break if found
}
});
return match;
};

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