F5 ADC - url rewrite redirect with parsing

[OMA67]

F5 ADC - url rewrite redirect with parsing

Hello,

I would like to rewrite/redirect a url with parsing a part of old url into the new one

Vocabulary : The Siret number is used to identify geographical location your company and each establishment that makes it up.

Exemple 1 :

From
https://mywebsite.com/oldpath/some-text-with-hypen-siretnumber-uniqueid
To
https://mywebsite.com/newpath/subpath/uniqueid

Exemple 2 :

From
https://mywebsite.com/oldpath/some-text-with-more-hypen-siretnumber-uniqueid
To
https://mywebsite.com/newpath/subpath/uniqueid

So far I tried regex to parse the digits after the last hyphen with no success, I surely miss something, or doing something wrong, here what I put in F5 ADC :

when HTTP_REQUEST {
        if {[string tolower [HTTP::uri]] starts_with "/oldpath/"}{
        scan [URI::basename [HTTP::uri]] {%[\-([^-][0-9]*)$]%d} num
                HTTP::redirect "https://[HTTP::host]/newpath/subpath/${num}"
                }
}

Thank you for any help.

Have a nice day.

[lnxgeek]

Can you give some examples of what the strings/numbers look like?

[OMA67]

Here an example : /First_name-Family_name-jobètype-41383279100011-1

And I have to keep the last number in this example 1

[Paulius]

@OMA67 Will the uniqueid always be at the end of the path, is it always the same length, and is it always certain characters?

[OMA67]

Yes uniqueid wich is only digits and it is an incrementation number from 1 to infinite, it is not always the same lenght

[OMA67]

uniqueid always at the end

[lnxgeek · Accepted solution]

Not tested:

when HTTP_REQUEST {
    # Capture the URI from the HTTP request
    set uri [HTTP::uri]
    
    # Define the pattern to extract "uniqueid" using Regular Expression
    # The pattern now captures only numerical characters after the last hypen ("-")
    set pattern {.*-(\d+)$}
    
    # Apply the regular expression to capture "uniqueid"
    if {[regexp $pattern $uri ignore uniqueid]} {
        
        # Create the new URI by appending the captured "uniqueid"
        set new_uri "/newpath/subpath/$uniqueid"
        
        # Perform HTTP redirect to the new URI
        HTTP::redirect "https://mywebsite.com$new_uri"
    }
}

[OMA67]

Thanks, I will try

[OMA67]

Thank you very much ! it works like a charm ! 😀👍

[lnxgeek]

Good to hear - just love to help out 🙂