[Mailman-Developers] Query regarding plugin integration with mailman3
Aanand Shekhar Roy
2013001 at iiitdmj.ac.in
Tue Mar 3 16:18:13 CET 2015
Thanks Steve for guiding me through. I am working on your advise.
> Aanand Shekhar Roy writes:
>
> > I was wondering if this approach for creating the plug-in would work:
> > When the plugin is installed, its .config file will check if required
> > interfaces are present in the local machine and find and install the
> code
> > of plug-in at required place in local machine. A new Rule gets added(by
> > .config file) in src/mailman/rules that uses IRule interface which
> checks
> > our requirements(i.e. confidential information check, banned words
> etc).
> > This rule will be added in src/mailman/chain. The rule is checked when
> > chain runs and takes the action set corresponding to the rule. We make
> a
> > module implementing IHandler that modifies the text before forwarding
> it
> > in the pipeline in which the whole process is running.
>
> I think you're getting way ahead of yourself.
>
> The normal installation process is for the site administrator or the
> host administrator to just copy the "plugin" module into the
> installation, pip any supporting modules from PyPI, and add the
> Handler or Rule to the appropriate pipeline or chain by editing the
> site config or (for list-local features) the list config. I don't see
> a need for .configs that "check interfaces" and "install code". Why
> do you think you need such things?
>
> Since all of the features you've mentioned so far are mutators, I
> don't really see a need for Rules. Implement the checks in the
> Handler. Either you'll need to duplicate those checks anyway to find
> the places that need changing, or you'll need to invent a rather
> complex protocol to tell the Handler that does the modification what
> to do.
>
> Yes, the Handler will implement IHandler.
>
>
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