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No more %-strings. Kill off all __i18n_templates__ hacks.
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from Mailman.Queue to Mailman.queue (note the case change to be more PEP 8
compliant).
The Switchboard and Runner classes have been moved into the package
__init__.py and the previous class modules have been removed.
The switchboard cache is removed; I don't think it was ultimately buying us
much. Now, just import the Switchboard class and instantiate it directly.
Added an IRunner interface.
Renamed the ArchRunner to ArchiveRunner.
bin/qrunner and bin/mailmanctl are updated accordingly. For the former, it no
long accepts -r=All to run all qrunners. You can still use the short name
(e.g. --runner=incoming) to run the built-in queue runners, but this design
will eventually allow for plugin qrunners by allowing them to be run
specifying the full package path to the class. It also now accepts a leading
dot to indicate a qrunner class relative to the Mailman.queue package.
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the new configuration object: admin, admindb, bounces, confirm, inject, join,
leave, owner, post, request, unshunt, version.
Also change MailList.GetScriptURL() to return the list's fully qualified name
in links.
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tosb.finish() call is the wrong switchboard. Changed to sb.finish().
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uncleanly (e.g. segfaults the Python interpreter), messages being processed
will not be lost.
The vulnerability, ideas, and patches are credited to Richard Barrett and Mark
Sapiro. Their original work was modified by Barry for this commit and any
bugs are his fault.
The basic idea is that instead of unlinking a .pck file in dequeue(), the file
is renamed to a .bak file. The Switchboard grows a finish() method which then
unlinks the .bak file. That class's constructor also grows a 'restore'
argument (defaulting to false), which when true moves all .bak files it finds
in its hash space to .pck, thereby restoring a file lost while "in flight".
This relies on the fact that even with multiple qrunners, exactly one process
will be responsible for one hash space slice, so it's never possible (under
normal operation) for a .bak file to be renamed to .pck by some other process.
Test cases for both the new Switchboard behavior and the use of that by Runner
subclasses has been added.
There are two things to watch out for, either of which may require some
additional changes. There is some small potential to duplicate messages in
various queues, if say 'mailmanctl' were improperly started more than once by
a site admin. This usually won't happen unless an admin is overly eager with
the mailmanctl -s switch, so we can chalk this one up to operator error. I'm
not sure what more we can do about that.
There's also a possibility that if we're processing a message that continually
causes the Python interpreter to crash, we could end up duplicating messages
endlessly. This is especially troublesome for the Outgoing runner which could
conceivably cause a mail flood. I consider this the more critical issue to
defend against, probably by adding a numbering scheme to the .bak file names
and refusing to restore a .bak file more than say 3 times without human
intervention.
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use optparse. Update newlist and rmlist to get their version string entirely
from mm_cfg.MAILMAN_VERSION instead of having to build that string up each
time.
Fix the symlink source in the Makefile.in.
Remove b4b5-archfix entirely.
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