I have the following scenario sending Auth Headers to an application that can range from the following:

"APIAuth 5b6b7ed3b9708d1168455da4:hW1ZeYYLJFGBP8tEHAEGoiGD1xM="

"APIAuth-HMAC-SHA256 5b6b7ed3b9708d1168455da4:hW1ZeYYLJFGBP8tEHAEGoiGD1xM="
  

etc.

What I'd like to do is to be able to capture APIAuth and APIAuth-HMAC-SHA256 from the header leaving me the client_id:signature like so:

string = '5b6b7ed3b9708d1168455da4:hW1ZeYYLJFGBP8tEHAEGoiGD1xM='

I want to be able to grab this value from any APIAut-WHATEVER-ENCRYPTION

I've been playing around with regex's but the best I have was this /\ABearer\s /i. I thought this would have worked to grab both because the \s is more than one of any single character so I don't know why its not working. Could someone please assist? Regexs are not my strong suit. Thank you.

CodePudding user response：

For the example strings, you could match the parts that you want:

\bAPIAuth(?:-\S )?\s \K[^\s:"] :[^\s:"] 

Explanation

• \bAPIAuth A word boundary, followed by APIAuth
• (?:-\S )? Optionally match - and 1 non whitespace chars
• \s \K Match 1 whitespace chars and forget what is matched so far using \K
• [^\s:"] :[^\s:"] Match : surrounded by chars other than a whitespace char or : or " if those are also part of the string

See a rubular regex demo.

You could also match only the first part, and then replace with an empty string.

\bAPIAuth(?:-\S )?\s 

See another regex demo