apologies, safelinks apparently crapped up my post.
The point is that if you urlencode a url and then base64 encode it, that's what you're looking for, what you're calling "base64url".
And then you can reverse the steps to reverse the process.
________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> on behalf of Jack Woehr via MIDRANGE-L <midrange-l@xxxxxxxxxxxxxxxxxx>
Sent: Tuesday, March 4, 2025 15:21
To: midrange-l@xxxxxxxxxxxxxxxxxx <midrange-l@xxxxxxxxxxxxxxxxxx>
Cc: Jack Woehr <jack.woehr@xxxxxxxxxxx>
Subject: Re: base64 URL decode - for jwt
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I think you misunderstood my example.
Maybe this makes it clearer:
$ php -a
Interactive shell
php > $url = '
https://foo.bar.com/woof?arf=%22some string"';
php > $urlencoded = urlencode($url);
php > var_dump($urlencoded);
string(58) "https%3A%2F%2Ffoo.bar.com%2Fwoof%3Farf%3D%22some+string%22"
php > $urlencoded_base64encoded = base64_encode($urlencoded);
php > var_dump($urlencoded_base64encoded);
string(80) "aHR0cHMlM0ElMkYlMkZmb28uYmFyLmNvbSUyRndvb2YlM0ZhcmYlM0QlMjJzb21lK3N0cmluZyUyMg=="
php > print(urldecode(base64_decode($urlencoded_base64encoded)));
https://foo.bar.com/woof?arf=%22some<
https://foo.bar.com/woof?arf=%22some> string"
________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> on behalf of Daniel Gross <daniel@xxxxxxxx>
Sent: Tuesday, March 4, 2025 14:06
To: midrange-l@xxxxxxxxxxxxxxxxxx <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: base64 URL decode - for jwt
Hi Jack,
base64 != base64url
Jack Woehr
Independent Consulting Programmer
303-847-8442
jack.woehr@xxxxxxxxxxx
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