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path: root/src/mailman_pgp/runners/incoming.py
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"""The encryption-aware incoming runner."""

from mailman.config import config as mailman_config
from mailman.core.runner import Runner
from mailman.email.message import Message
from mailman.model.mailinglist import MailingList
from public import public

from mailman_pgp.config import config
from mailman_pgp.model.list import EncryptedMailingList
from mailman_pgp.pgp.inline import PGPInlineWrapper
from mailman_pgp.pgp.mime import PGPMIMEWrapper


@public
class IncomingRunner(Runner):
    def _dispose(self, mlist: MailingList, msg: Message, msgdata: dict):
        """See `IRunner`."""
        # Is the message for an encrypted mailing list? If not, pass to default
        # incoming runner. If yes, go on.
        encrypted_list = config.db.query(EncryptedMailingList).filter_by(
            list_id=mlist.list_id).first()
        if not encrypted_list:
            inq = config.get('queues', 'in')
            mailman_config.switchboards[inq].enqueue(msg, msgdata,
                                                     listid=mlist.list_id)
            return False
        # Is the message encrypted?
        mime = PGPMIMEWrapper(msg)
        inline = PGPInlineWrapper(msg)
        if mime.is_mime_signed():
            # only signed.
            pass
        elif mime.is_mime_encrypted():
            # definitely encrypted, might still be signed
            pass
        elif inline.is_inline_signed():
            pass
        elif inline.is_inline_encrypted():
            pass
        else:
            # not encrypted or signed
            pass