How can I add something in JavaScript that will check the website URL of someone on a web site and then redirect to a certain page on the website, if a match is found? for example...
the string we want to check for, will be mydirectory, so if someone went to mysite.com/mydirectory/anyfile.php or even mysite.com/mydirectory/index.php JavaScript would then redirect their page / url to mysite.com/index.php because it has mydirectory in the URL, how can I do that using JavaScript?
If I have understood the question correctly, then it is fairly simple and can be achieved using document.URL
var search = 'mydirectory'; // The string to search for in the URL.
var redirect = 'http://mysite.com/index.php' // Where we will direct users if it's found
if(document.URL.substr(search) !== -1) { // If the location of
// the current URL string is any other than -1 (doesn't exist)
document.location = redirect // Redirect the user to the redirect URL.
}
Using document.URL you can check anything in the URL, however you might want to look into using something like Apache's mod_rewrite for redirecting the user before they even load the page.
Check out window.location, particularly it's properties and methods. You would be interested in (part of the) pathname property (you can split it on /) and the href property to change the page.
This is all assuming the javascript is being served in the first place; so I'm assuming anyfile.php and index.php would all result in the JS being served and not some 'generic 404' message.
Related
I am wondering how to deal with a simple redirect. I have a domain, for example: stackguy.com. And I want to redirect users to specific URLs from this url.
Let's say, stackguy.com/redirect=youtube.com/watch/xxx
And this URL (youtube.com...) needs to be elastic. What the user enters, it should redirect to the website the user wants.
I have totally no idea, to be honest. I've tried to do it by using database and by separating all urls but it's a lot of work and can't be automated easily.
It can also be done like stackguy.com/red=<id of YT video>
Doesn't matter to me.
The other solution talks about using javascript which runs on the client side. And you probably want this on the server side.
You still need to use a parameter
stackguy.com?redirect=https://www.youtube.com/watch/xxx
But you can use php to do the redirect.
$par = filter_var ($_GET ['redirect'] ?? '', FILTER_SANITIZE_STRING);
if ($par)
{header('Location: ' . $par, true, 302); }
The first line gets the parameter after sanitizing it. It returns blank if its null (or missing)
The second line checks if there is a string
The third line does a redirect using a 302. This is a temporary redirect, I wouldn't advise using a 301 (permanent).
Note that this will only work if the PHP file has done NO HTML output.
I think you should use query parameters for this and handle the redirect in your javascript. Instead of:
stackguy.com/redirect=youtube.com/watch/xxx
use
stackguy.com?redirect=https://www.youtube.com/watch/xxx
Then in your js you can check if the redirect paramter is set and redirect the user to the link in the query parameter.
Here is an example:
function redirectUrl() {
// Get the value of the "redirect" query parameter
const redirect = new URLSearchParams(window.location.search).get("redirect");
// If the "redirect" parameter is not null, redirect the user to the specified URL
if (redirect) {
window.location = redirect;
}
}
To use the function you will need to call it in your code for example:
window.addEventListener("load", redirectUrl);
I am currently using webflow to host my site. In the redirection section on the hosting tab. I added a 301 redirect query string that redirects to my index, I do this because I wanted to track where do the users come from in my site.
Read this article and try it out:
https://www.newmediacampaigns.com/blog/how-to-track-landing-page-redirects-using-google-analytics
So basically it states this:
old path: /mexico
new path: example.com/?key=mexico
So for example i created a redirect /mexico to go to my index with a query string. Currently it works really well, but i want to know if it is possible that the user does not see the query string when entering from a redirect link.
For example when user enters by example.com/mexico, the url search bar shows only example.com
I tried hiding it using javascript, but does not work.
var testURL = 'myurl';
testURL.split('?')[0];
Any clue? or suggestion?
The only way to do this is with the history API - not available in older browsers.
The standard way of doing this is
history.pushState("object or state to represent your page", "page title", "/thenewurlpath");
You could add this to your document.ready callback, E.G.
$(document).ready(function(){
history.pushState("something", "newtitle", "/thenewpath");
// Whatever else your document.ready callback is doing...
})
Hope this helped :)
Using JavaScript, how can I make it redirect to another site based on the URL?
(Example)
If someone goes to https://example.com/12345, it will redirect them to https://example.net/12345.
And if someone goes to https://example.com/abc123456, it will redirect them to https://example.net/abc123456
How can I do this?
In the place that you have hosted that domain, See if you can find something that makes it a single page app or a way to rewrite all urls to one page so that it doesn't show 404 not found. (not certain how you can do that, I only done it with firebase hosting, it has a way of configuring it so that no matter what url you give it, it always shows you the same page, and also the url doesn't get changed ) if you can do that, this is the code you need:
let pathname = location.pathname //if the url is https://example.net/1234, the path name will be /1234
location.href = "https://example.net" + pathname //if you add that to this string, it would be https://example.net/1234
You can use following code for that:
location.href = 'https://example.net/12345';
location.href = 'https://example.net/abc123456';
Or used following code for that:
location.replace('https://example.net/12345');
location.replace('https://example.net/abc123456');
I've read about 6 other posts on here about this topic and I still can’t seem to get this to work.
I want to use pure javascript to read a user defined url query string, then have it make a decision about where to redirect the user based on the information in the string.
I have the javascript saved in “script.js”,
this is part of a webpage “https://www.website.com/script.js”,
the url with the query string would look like this “https://www.website.com/script.js?bird=chicken”.
This is what my code looks like:
}
var birdtype = getQueryString('bird');
if ( birdtype == [ chicken ])
window.location.replace = "https://www.website.com/chicken.html";
else
window.location.replace = "https://www.website.com/turkey.html";
};
Please, what am I doing wrong?
You can use .href property instead of replace like
window.location.href = "https://www.website.com/chicken.html"
to redirect to a different page.
How can I execute jQuery/JS code as soon as a jQuery/JS redirect like...
$(location).attr('href','/target_path');
...or...
window.location.href = "/target_path";
...has finished loading the new page?
Specifically, I need to pass an alert message and insert it into and display it (enclosed in some HTML) on the new page.
You can't. Once the redirect happens you are no longer on that page. You can't execute code on a page you are no longer on. If you want the next page to do something then you need to pass, either by cookie or URL parameter, a flag that instructs it to do so.
It is impossible to tell JavaScript to execute some code after a redirect.
However you have different options:
Pass a string in the redirect URL and then do something on "ready"
Store some information in a cookie and then do something on "ready"
Store some data using DOM storage (namely sessionStorage) if you don't mind the smaller browser support
You can't do that in the page that's redirecting. You can read the referrer in the landing page (document.referrer), and then decide whether to display an alert based on that, though.
var x = "It's some text";
var loc = '/target_path';
loc += '?message=' + encodeURI(x);
The JS file on the new page can then look at the query string to see if a message is there, and do the required action if it's detected.
You can use window.location.search on the new page to see what's there, although I'd recommend hunting for a deparam function in a library to turn the query string into a more usable object.