Redirect_uri with parameters when using OAuth authorization

Question

PHP

Good day to all. I am implementing authorization into the site through VKontakte. Task: to make it so that when you log in from any page of the site, if successful, the same page opens again.

Example: page address http://site.ru/articles?category=1&id=8

When generating a page, I create a link:

Авторизация через ВКонтакте

As a result, when the user clicks on the link and then logs in to the Vkontakte website, he is redirected to the page http://site.ru/articles?category=1&code=8d61a70a2be1d7d8a8

How to redirect to http://site.ru/articles?category=1&id=8&code=8d61a70a2be1d7d8a8

Answer 1

Encode your redirect_uri parameters, at least with http_build_query, so that & is %26 instead

Answer 2

The value of the redirect_uri parameter makes sense to encode

Answer 3

Try swapping the redirect_uri and response_type parameters in the authorization link

Answer 4

Well, there seems to be only one way out. You will have to replace the ampersand with %26, and after authorization - back %26 with an ampersand and make another redirect.

Answer 5

url escaping will help you. if php - php.net/urlencode

Answer 6

Alternatively, in the user's session, always store the last page they opened. Every time a user opens a page, check the session and ref data. If the ref is "VKontakte", then redirect the user to the address stored in the session.

Answer 7

To solve applied problems, it is better to use Python. Simpler, more concise, a billion libraries for solving intermediate problems.
If we talk exclusively about Java vs C #, then there is essentially no difference.

Answer 8

>tasks cost more than the simplest
ones