[Pound Mailing List] Service redirection based on request method?

[Trent Nelson]

    Playing around with pound, I found myself wanting to configure
    Service instances based on the type of HTTP request method.  I
    tried the following, which didn't work (I didn't really expect
    it to work, but it gives you an idea of what I'm trying to do):

        ListenHTTPS
            ...
            xHTTP 2

            # Read-only requests go to varnish.
            Service
                HeadRequire "Host: svn.snakebite.net"
                URL         "^(GET|PROPFIND|OPTIONS|REPORT) .+"
                BackEnd
                    ... varnish backend
                End
            End

            # Mutable requests bypass varnish and go straight to httpd.
            Service
                HeadRequire "Host: svn.snakebite.net"
                URL 
"^(LOCK|UNLOCK|PROPPATCH|SEARCH|MKCOL|MOVE|COPY|TRACE|MKACTIVITY|CHECKOUT|MERGE|REPORTGET)
 .+"
                BackEnd
                    ... svn httpd backend
                End
            End

    So, that doesn't work, presumably because the URL regex kicks in
    after the initial HTTP method.

    Is there some other way I could achieve this?  If not, what are your
    thoughts on adding support for it?  I'm thinking something along the
    lines of:

        ListenHTTPS
            ...
            xHTTP 4

            Service
                MethodRequire "GET|HEAD"
                ...
            End

            Service
                MethodDeny "PUT"
                ...
            End
        End

    (I currently don't have a need for 'MethodDeny', but I can see how
     it would be useful -- at the least, it would avoid the need to
     hack config.c as mentioned in the Questions? section of the Calomel
     pound page: https://calomel.org/pound.html.)

    Regards,

        Trent.


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