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============
NNTP Gateway
============
Mailman has an NNTP gateway, whereby messages posted to the mailing list can
be forwarded onto an NNTP newsgroup.
>>> mlist = create_list('test@example.com')
Gatewaying from the mailing list to the newsgroup happens through a separate
``nntp`` queue and happen immediately when the message is posted through to
the list. Note that gatewaying from the newsgroup to the list happens via a
separate process.
There are several situations which prevent a message from being gatewayed to
the newsgroup. The feature could be disabled, as is the default.
::
>>> mlist.gateway_to_news = False
>>> msg = message_from_string("""\
... Subject: An important message
...
... Something of great import.
... """)
>>> handler = config.handlers['to-usenet']
>>> handler.process(mlist, msg, {})
>>> from mailman.testing.helpers import get_queue_messages
>>> get_queue_messages('nntp')
[]
Even if enabled, messages that came from the newsgroup are never gated back to
the newsgroup.
>>> mlist.gateway_to_news = True
>>> handler.process(mlist, msg, dict(fromusenet=True))
>>> get_queue_messages('nntp')
[]
Neither are digests ever gated to the newsgroup.
>>> handler.process(mlist, msg, dict(isdigest=True))
>>> get_queue_messages('nntp')
[]
However, other posted messages get gated to the newsgroup via the nntp queue.
The list owner can set the linked newsgroup and the nntp host that its
messages are gated to.
::
>>> mlist.linked_newsgroup = 'comp.lang.thing'
>>> mlist.nntp_host = 'news.example.com'
>>> handler.process(mlist, msg, {})
>>> messages = get_queue_messages('nntp')
>>> len(messages)
1
>>> print(messages[0].msg.as_string())
Subject: An important message
<BLANKLINE>
Something of great import.
<BLANKLINE>
>>> dump_msgdata(messages[0].msgdata)
_parsemsg: False
listid : test.example.com
version : 3
|
