Bitmessage Plugins

BM-2cWy7cvHoq3f1rYMerRJp8PT653jjSuEdY
Nov 3 04:21 [raw]

I would like to develop a very simple path for enabling plugins for PyBitmessage. By calling it simple I do mean very simple. It should not generate a lot of work for the development team. Is this something the developers would be interested in?

BM-2cUdgkDDAahwPAU6oD2A7DnjqZz3hgY832
Nov 3 09:39 [raw]

There already are a couple of plugin mechanisms, maybe you can look at those first. There is one for the QT interface, I haven't actually used it or looked at it thoroughly, it was written by someone else. I think however it's limited for notifications and adding context menu items, but I could be wrong, as I said I haven't looked at it thoroughly. If I remember right though, you need to build bitmessage (e.g. using setuptools) for this to work, because it will create the eggs that then show up in the namespace. If you just run it with python without building, the plugins won't show up. There is also a mechanism for easily adding handlers for content types in extended encoding, but due to security problems it has been disabled until I'm happy that there is no more risk. You can find it in src/messagetypes. This can dynamically load a class when a new message type is encountered (with some workarounds for frozen mode) without buillding the eggs, but as I said it needs to undergo a security review, so for the time being you have to manually whitelist your new types in src/messagetypes/__init__.py There is another quasi-plugin mechanism, that allows to implement handlers for storing the inventory, you can find it in src/storage. This cannot be dynamically loaded at the moment and needs to be enumerated in src/inventory.py. Only the sqlite backend has been tested thoroughly, the filesystem one seems to work but needs more testing. I can imagine adding a plugin mechanisms that do things like message filtering, autoresponders, etc. You could plug it right after the helper_msgcoding.MsgDecode in class_objectProcessor.py, there are only two occurrences, one for your messages and one for broadcasts. I think maybe even some current functionality, like the mailing list, could be refactored as a first example of the plugin mechanism. Also, please consult the contribution guidelines: https://www.bitmessage.org/wiki/Contribute , and if you have questions, you can ask here or on gitter: https://gitter.im/Bitmessage/PyBitmessage At the moment the focus is on improving code quality and incorporating large changes to code is difficult. I recommend making small PRs, they have a better chance of being accepted quickly. The PRs now also have automatic code quality checks and test runs, i.e. github will automatically tell you if there's something wrong. So check out the responses from those after making PRs. Peter Surda Bitmessage core developer

BM-2cWy7cvHoq3f1rYMerRJp8PT653jjSuEdY
Nov 3 21:33 [raw]

> I recommend making small PRs, they have a better chance of being accepted quickly. This is just what I have in mind. My idea is so simple it's almost stupid. It allows to run threaded plugin scripts with a template of functions. It does not add hooks or anything like that but instead maps existing functions to some logical schema. Plugins would match their code to mostly existing statements in the codebase, allowing to call them from independent threads or inline catches. This means very minor and easy to track changes to the main codebase without reinventing the wheel, since all the plugin logic would not modify the existing code.

[chan] bitmessage
BM-2cWy7cvHoq3f1rYMerRJp8PT653jjSuEdY

Subject Last Count
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