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problems passing base64_encoded value

I'm trying to pass a password reset token as part of a CI4 url --it's 32 random bytes encoded using base64_encode. Suppose the token was generated this way:
PHP Code:
// returns LGziiALPuVrzIruXQNiFzDWbJuZNIT//zjgTh5FO288=
$token base64_encode(random_bytes(32)); 
NOTE the two slashes in it. I'll need to urlencode.

I'm having a few problems:

1) If I try to add this token to a url like so:
PHP Code:
$url site_url("/password-reset/token/" urlencode($token)); 
then, for some strange reason, site_url function decodes the urlencoded token, yielding this:

2) If I create the site url without the token (which seems awkward, to be honest) and then append the urlencoded token like this:
PHP Code:
$url site_url('/password-reset/token/') . urlencode($token); 
then I get a url that looks good:
but CI4 doesn't like the url and gives me 404 Not Found. It doesn't like the % chars.

Is there some way to get codeigniter to allow url-encoded values in its segments? Is there any security risk in doing so? It seems pretty limited if we can't urlencode values to pass them in as autorouted parameters.

Messages In This Thread
problems passing base64_encoded value - by sneakyimp - 03-24-2021, 09:10 PM

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