CODEWITHSUNDEEP
javascript
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Reputation: 5592

How to change referrer link?

How to convert this link 1 to the destination link 2 with Javascript. The second link is the actual destination of the original link1.

Update: I am given the link in the first link form, but I want it in the second form because I need to get Ajax request with the second link form.

  1. original link

  2. actual link

Upvotes: 0

Views: 275

Answers (1)

Yeldar Kurmangaliyev
Yeldar Kurmangaliyev

Reputation: 34199

You cannot extract the full link, because The Guardian provides a shortened URL. The best thing you can do is to extract the shortened URL using substr and then apply decodeURIComponent:

function extractFacebookUrl(u) {
    u = u.substr(u.indexOf('l.php?u=') + 8); // remove before ?u=
    u = u.substr(0, u.indexOf('&')); // remove after &

    return decodeURIComponent(u);
}

var link = "https://www.facebook.com/l.php?u=http%3A%2F%2Fgu.com%2Fp%2F4dqfm%2Ffb&h=VAQHJLcqT&enc=AZPaThEaRTCX-l4-p7IhnG-fLwffa6Gc29biVbxjLL_bwGigUa4xy6V1OwJKFCslcpd0qbSIDYtTBVOEovtYW2k2B37re6-kaQuraywUr_DNQcEm5MG8Cc9ODb8hfOZ5CuNoTYvIT7VxpMSwHDS1k-eChZ9vc3USJLAsoB0ZmFBOZmFQKd6o8n_SKadD6295xn5d6Q7_URlDDqw-7pjapUuZ&s=1";

document.body.innerText = extractFacebookUrl(link);

It returns http://gu.com/p/4dqfm/fb, which leads to the actual page.
Note that it supposes that original link has always the same format and the order of GET arguments.

Upvotes: 2

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