[Mailman-Users] Custom header
dave at difference.com.au
Mon Sep 13 15:24:20 CEST 2004
At 3:03 PM +0900 2/9/04, Jim Tittsler wrote:
>On Aug 31, 2004, at 13:42, David Cake wrote:
>> I guess my questions really is 'do the existing per-list
>>customisation options include any way of changes to the mail
>>headers beyond what is already accessible from the GUI?'
>> And, as a followup, if it requires source code level changes,
>>is there a sane and sensible way of doing these on a per list basis
>>so my installation remains upgradable? I know python, but I'm in no
>>hurry to make by installation unmaintainable.
>I think the best way to do this sort of thing is add a handler to
>that list's pipeline that does the processing you want. If you
>created a DavidsHeader.py in your Mailman/Handlers directory that
>"""Add a list specific header
>def process(mlist, msg, msgdata):
> msg['X-Davids-Header'] = 'my header text'
>And then add that handler to the pipeline for the list in question
>(say after the CookHeaders handler) using withlist:
>$ bin/withlist -l mylist
> >>>m.pipeline.insert(m.pipeline.index('CookHeaders')+1, 'DavidsHeader')
>Your list will be processed with the additional handler that does
>nothing but add a header.
Apparently, lists do not have a pipeline attribute by
default? At least, the above code does not work, and I got the
impression from comments in Default.py that a pipeline attribute was
something a list could have but usually did not.
Thanks In Advance
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