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OMA67's avatar
OMA67
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Sep 28, 2023
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F5 ADC - url rewrite redirect with parsing

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.

application delivery
  • lnxgeek's avatar
    lnxgeek
    Sep 28, 2023

    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"
    }
}

9 Replies

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  • lnxgeek's avatar
    lnxgeek
    Icon for MVP rankMVP
    Sep 28, 2023

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

    • OMA67's avatar
      OMA67
      Icon for Nimbostratus rankNimbostratus
      Sep 28, 2023

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

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

  • Paulius's avatar
    Paulius
    Icon for MVP rankMVP
    Sep 28, 2023

    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's avatar
      OMA67
      Icon for Nimbostratus rankNimbostratus
      Sep 28, 2023

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

  • lnxgeek's avatar
    lnxgeek
    Icon for MVP rankMVP
    Sep 28, 2023

    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"
    }
}