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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