How to disable 'save image as' option on right click? [duplicate] - javascript

This question already has answers here:
How do I disable right click on my web page?
(30 answers)
Closed 8 years ago.
I want to prevent users from right-clicking on image on my site and saving them.
I know there are many work-around for this, but I still need to do it.
Any help?
Also, this site has this feature - http://finsix.com/dart/#section-colors
It can be html, javascript, jquery. Any solution will do.

$("body").on("contextmenu", "img", function(e) {
return false;
});
This is the "new" way in jQuery. Bear in mind anyone with technical knowledge would be able to get around this.

Use the image as a background-image of a div element, This will keep the easy minded people away from saving it ;)

<script type="text/javascript">
function click (e) {
if (!e)
e = window.event;
if ((e.type && e.type == "contextmenu") || (e.button && e.button == 2) || (e.which && e.which == 3)) {
if (window.opera)
window.alert("");
return false;
}
}
if (document.layers)
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown = click;
document.oncontextmenu = click;
</script>
I have found this script on selfhtml.org.
This function is originally designed to disable the client side context menu and to insert your own context menu. But it can be used for this too.
But keep in mind: By using browser addons like NoScript or opening the image url user could get around this.

Related

Adding costum shortcut action into tampermonkey script

I am quite new with tampermonkey so if you give really simple answers i would be really greatful:)
I am planning to write a simple script when i press on short cut button such as alt+a i would like to paste predefined text such as apple.
document.onkeyup=function(e){
var e = e || window.event; // for IE to cover IEs window event-object
if(e.altKey && e.which == 65) {
print('apple');
return false;
}
}
I have this JS code but I am not sure how to transform that to userscript.
Any help would be most welcome.

jQuery event triggered by space

I'm trying to have a next button disabled untill 30 seconds after the space bar has been pressed using jQuery in qualtrics. I've tried a lot of suggestions that have already been made, but nothing seems to work. If anyone could help me out here I'd be super grateful, I'm at a real dead end.
Thanks in advance
Qualtrics.SurveyEngine.addOnload(function() {
/*Place Your Javascript Below This Line*/
var InputId = $("QR~" + this.questionId);
InputId.style.display = "none";
this.disableNextButton();
if (e.keyCode === 0 || e.keyCode === 32) {
this.enableNextButton.delay(30);
}
})
$ in Qualtrics is referring to prototypejs.
You would need to run jquery noconflict to be using jquery, and using the correct identifier to match.
Additionally, you have no event handler to capture your keypress.

How can I disable the menu option "Save As" on all browsers? [duplicate]

This question already has answers here:
Disable Save & Save As option in all Browsers using javascript [closed]
(2 answers)
Closed 7 years ago.
I blocked the CTRL/COMMAND button, for prevent CTRL+S, but if I go to "Menu > Save As..." all of my pages can be save on the computer. I need to block this function but I don't know how to do.
function alerta(){
alert('A página não pode ser salva.');
return false;
}
function verificaBotao(oEvent){
var oEvent = oEvent ? oEvent : window.event;
var tecla = (oEvent.keyCode) ? oEvent.keyCode : oEvent.which;
if(tecla == 17 || tecla == 44|| tecla == 106){
alerta();
}
}
<SCRIPT LANGUAGE="JavaScript1.2">
document.onkeypress = verificaBotao;
document.onkeydown = verificaBotao;
document.oncontextmenu = alerta;
</SCRIPT>
There is no way for you to do this. Once someone loads your page, it's already on their computer. No point in trying to block this.
Even if you really wanted to do this, no browser will allow you to manipulate this functionality.

How to hide form code from view code/inspect element browser?

I want to hide form code from view code/inspect element browser , how can i do that ?
This is my code, please see below:
<div style=" text-align: center; padding: 300px; font-family: lato; ">
Please wait redirect page ......<br>
<img src="http://maps.nrel.gov/sites/all/modules/custom_modules/hydra/assets/images/loading_bar.gif" border="0">
</div>
<form name="f1" action="payments.php" method="post">
<input type="hidden" name="id_crad" value="...">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="amount" value="12.99">
</form>
<script type="text/javascript">
setTimeout(function(){f1.submit();}, 3000);
</script>
Please see picture
You simply can't.
Code inspectors are designed for debugging HTML and JavaScript. They do so by showing the live DOM object of the web page. That means it reveals HTML code of everything you see on the page, even if they're generated by JavaScript. Some inspectors even shows the code inside Iframes.
How about some JavaScript to disable keyboard / mouse interaction...
There are some JavaScript tricks to disable some keyboard, mouse interaction on the page. But there always are work around to those tricks. For instance, you can use the browser top menu to enable DOM inspector without a problem.
Try theses:
Firefox: ☰ > Tools > Web Developer > Inspector
Chrome: ⋮ > More Tools > Developer Tools > Elements
They are outside the control of JavaScript.
Big Picture
Think about this:
Everything on a web page is rendered by the browser, so they are of a lower abstraction level than your JavaScript. They are "guarding all the doors and holding all the keys".
Browsers want web sites to properly work on them or their users would despise them.
As a result, browsers want to expose the lower level ticks of everything to the web developers with tools like code inspectors.
Basically, browsers are god to your JavaScript. And they want to grant the web developer super power with code inspectors. Even if your trick works for a while, the browsers would want to undo it in the future.
You're waging war against god and you're doomed to fail.
Conclusion
To put it simple, if you do not want people to get something in their browser, you should never send it to their browser in the first place.
There is a smart way to disable inspect element in your website. Just add the following snippet inside script tag :
$(document).bind("contextmenu",function(e) {
e.preventDefault();
});
Please check out this blog
The function key F12 which directly take inspect element from browser, we can also disable it, by using the following code:
$(document).keydown(function(e){
if(e.which === 123){
return false;
}
});
You can add this script to make a error when user inpect :D
Try this code
<script type="text/javascript">
eval(function(p,a,c,k,e,d){e=function(c){return c.toString(36)};if(!''.replace(/^/,String)){while(c--){d[c.toString(a)]=k[c]||c.toString(a)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('(3(){(3 a(){8{(3 b(2){7((\'\'+(2/2)).6!==1||2%5===0){(3(){}).9(\'4\')()}c{4}b(++2)})(0)}d(e){g(a,f)}})()})();',17,17,'||i|function|debugger|20|length|if|try|constructor|||else|catch||5000|setTimeout'.split('|'),0,{}))
</script>
From http://www.bloggerku.com/2017/08/memasang-anti-inspect.html
You can use this code -
Block Right Click -
<body oncontextmenu="return false;">
Block Keys - You should use this on the upper of the body tag. (use in the head tag)
<script>
document.onkeydown = function (e) {
if (event.keyCode == 123) {
return false;
}
if (e.ctrlKey && e.shiftKey && (e.keyCode == 'I'.charCodeAt(0) || e.keyCode == 'i'.charCodeAt(0))) {
return false;
}
if (e.ctrlKey && e.shiftKey && (e.keyCode == 'C'.charCodeAt(0) || e.keyCode == 'c'.charCodeAt(0))) {
return false;
}
if (e.ctrlKey && e.shiftKey && (e.keyCode == 'J'.charCodeAt(0) || e.keyCode == 'j'.charCodeAt(0))) {
return false;
}
if (e.ctrlKey && (e.keyCode == 'U'.charCodeAt(0) || e.keyCode == 'u'.charCodeAt(0))) {
return false;
}
if (e.ctrlKey && (e.keyCode == 'S'.charCodeAt(0) || e.keyCode == 's'.charCodeAt(0))) {
return false;
}
}
</script>
This code removes the inner html of an element from the dom when the debugger is open (tested in Chrome and IE)
var currentInnerHtml;
var element = new Image();
var elementWithHiddenContent = document.querySelector("#element-to-hide");
var innerHtml = elementWithHiddenContent.innerHTML;
element.__defineGetter__("id", function() {
currentInnerHtml = "";
});
setInterval(function() {
currentInnerHtml = innerHtml;
console.log(element);
console.clear();
elementWithHiddenContent.innerHTML = currentInnerHtml;
}, 1000);
Here #element-to-hide is the id of element you want to hide.
It is a hack, but I hope it helps you.
While I don't think there is a way to fully do this you can take a few measures to stop almost everyone from viewing the HTML.
You can first of all try and stop the inspect menu by doing the following:
<body oncontextmenu="return false" onkeydown="return false;" onmousedown="return false;">
I would also suggest using the method that Jonas gave of using his javascript and putting what you don't want people to see in a div with id="element-to-hide" and his given js script to furthermore stop people from inspecting.
I'm pretty sure that it's quite hard to get past that. But then someone can just type view-source:www.exapmle.com and that will show them the source. So you will then probably want to encrypt the HTML(I would advise using a website that gives you an extended security option). There are plenty of good websites that do this for free (eg:http://www.smartgb.com/free_encrypthtml.php) and use extended security which you can't usually unencrypt through HTML un encryptors.
This will basically encrypt your HTML so if you view the source using the method I showed above you will just get encrypted HTML(that is also extremely difficult to unencrypt if you used the extended security option). But you can view the unencrypted HTML through inspecting but we have already blocked that(to a very reasonable extent)
Ok so you can't fully hide the HTML but you can do an extremely good
job at stopping people seeing it.(If you think about it most people
don't care about looking at a page's HTML, some people don't even know
about inspecting and viewing the source and the people who do probably
won't be bothered or won't be able to get past theses implications! So
probably no one will see you HTML)
(Hope this helps!)
Below JavaScript code worked for me to disable inspect element.
// Disable inspect element
$(document).bind("contextmenu",function(e) {
e.preventDefault();
});
$(document).keydown(function(e){
if(e.which === 123){
return false;
}
});
While I don't think there is a way to fully do this you can take a few measures to stop almost everyone from viewing the HTML.
You can first of all try and stop the inspect menu by doing the following:
I would also suggest using the method that Jonas gave of using his javascript and putting what you don't want people to see in a div with id="element-to-hide" and his given js script to furthermore stop people from inspecting.
I'm pretty sure that it's quite hard to get past that. But then someone can just type view-source
This will basically encrypt your HTML so if you view the source using the method I showed above you will just get encrypted HTML(that is also extremely difficult to unencrypt if you used the extended security option). But you can view the unencrypted HTML through inspecting but we have already blocked that(to a very reasonable extent)
You can use the following tag
<body oncontextmenu="return false"><!-- your page body hear--></body>
OR you can create your own menu when right click:
https://github.com/swisnl/jQuery-contextMenu
you can not stop user from seeing our code but you can avoid it by disabling some keys
simply you can do <body oncontextmenu="return false" onkeydown="return false;" onmousedown="return false;"><!--Your body context--> </body>
After doing this following keys get disabled automatically
1. Ctrl + Shift + U
2. Ctrl + Shift + C
3. Ctrl + Shift + I
4. Right Click of mouse
5. F12 Key
While I don't think there is a way to fully do this you can take a few measures to stop almost everyone from viewing the HTML.
You can first of all try and stop the inspect menu by doing the following:
I would also suggest using the method that Jonas gave of using his javascript and putting what you don't want people to see in a div with id="element-to-hide" and his given js script to furthermore stop people from inspecting.
I'm pretty sure that it's quite hard to get past that. But then someone can just type view-source:www.exapmle.com and that will show them the source. So you will then probably want to encrypt the HTML(I would advise using a website that gives you an extended security option). There are plenty of good websites that do this for free (eg:http://www.smartgb.com/free_encrypthtml.php) and use extended security which you can't usually unencrypt through HTML un encryptors.
This will basically encrypt your HTML so if you view the source using the method I showed above you will just get encrypted HTML(that is also extremely difficult to unencrypt if you used the extended security option). But you can view the unencrypted HTML through inspecting but we have already blocked that(to a very reasonable extent)
<script>
document.onkeydown = function(e) {
if(event.keyCode == 123) {
return false;
}
if(e.ctrlKey && e.keyCode == 'E'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'I'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'J'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'U'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'S'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'H'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'A'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'E'.charCodeAt(0)){
return false;
}
}
</script>
Try this code
if someones is interested you can delete the form node from the DOM after the submission and it won't be there using the inspector.
https://developer.mozilla.org/en-US/docs/Web/API/ChildNode/remove
I did some digging for your question and found an intriguing idea by PwnFunction.
If you can fit your complete code into your CSS file. Then we can use the response header "Link" to link your CSS file to your request for the site.
According to MDN Docs:
HTTP headers let the client and the server pass additional information
with an HTTP request or response. An HTTP header consists of its
case-insensitive name followed by a colon (:), then by its value.
Whitespace before the value is ignored.
The Link entity-header field provides a means for serializing one or more
links in HTTP headers. It is semantically equivalent to the HTML link
element.
So this header can link your stylesheet to your HTTP request. So what will happen in the backend is that whenever someone tries to "inspect element" your source code, they'll see a blank page for your HTML code. But they can still see the link to your stylesheet in developer tools.

capture right click through Javascript, withouth wmode

Flash player has a bug in using anything other than wmode="window" in Firefox/Chrome when using any other language than English. This bug is reported and not fixed yet
http://bugs.adobe.com/jira/browse/FP-501
The issue can be seen better here -
http://www.5etdemi.com/blog/archives/2005/06/firefox-wmodetransparent-is-completely-screwy-and-breaks-textfields/
Now to my problem - im trying to use Uza's right click solution ( http://www.uza.lt/blog/2007/08/solved-right-click-in-as3 ) in my application, but am stuck with problem of wmode. The event capturing doesnt seem to work with wmode="window" and i need multiple languages to work on my app as well.
Is there any solution to this that anyone has identified? Or is there any way that the right click can be captured without setting wmode.
Any help will be greatly appreciated. Thanks!!
Fortunately you most often want to know if the right button has been clicked. Since W3C and Microsoft happen to agree on this one and give button a value of 2, you can still detect a right click.
function doSomething(e) {
var rightclick;
if (!e) var e = window.event;
if (e.which) rightclick = (e.which == 3);
else if (e.button) rightclick = (e.button == 2);
alert('Rightclick: ' + rightclick); // true or false
}
http://www.rgagnon.com/jsdetails/js-0061.html
http://www.quirksmode.org/js/events_properties.html
http://unixpapa.com/js/mouse.html
http://www.javascripter.net/faq/leftvsri.htm

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