[Bug 61692] CGIServlet should handle additional HTTP methods, for example MKCALENDAR, MKCOL, PROPFIND, PROPPATCH

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=61692

--- Comment #7 from Mark Thomas <ma...@apache.org> ---
I've been thinking about this some more and experimenting with different ideas.
Trying to reconcile the combination of maximising backwards compatibility,
supporting any HTTP method and having the correct response for OPTIONS is not
easy. Something has to give.

My current thinking is to add a single new option, enableAllHttpMethods. If
this is enabled, every request regardless of method will be passed to the CGI
script and it will be expected to respond appropriately. This maximises
backwards compatibility while enabling scripts to be deployed that support any
methods. The downside is that if you enable this option the script has to
handle OPTIONS, TRACE and any unrecognised methods. That seems a reasonable
compromise to me.

For the request body, I plan to go with the option of passing the request body
for any method if Content-Length or Transfer-Encoding is set.

This approach has the advantage that it can be applied to all supported Tomcat
versions.

I'll leave this a few days for folks to comment and if the consensus is
favourable, I'll implement this approach for the next round of releases.

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