VirtualMailManager/pycompat/__init__.py
author martin f. krafft <madduck@madduck.net>
Tue, 10 Apr 2012 22:56:30 +0200
branchv0.6.x
changeset 514 d863a44a6353
parent 366 d6573da35b5f
child 568 14abdd04ddf5
permissions -rw-r--r--
Make PL/pgSQL function feed back identity for mailboxes/relocated when there are catchall destinations. Without catchall aliases, if no virtual_alias matches, the query can just return NULL and Postfix will later check mailboxes/relocated for the address to rewrite. However, since virtual aliases are handled long before mailboxes/relocated, a catchall alias would also catch mail to mailboxes and relocated addresses, which we do not want. The way to tell postfix to keep delivering is for the virtual alias map to return the search key itself (identity function). This patch changes the postfix_virtual_alias_maps Pl/pgSQL function to do exactly that, but only if there are catchall destinations defined for the domain in question — otherwise it returns NULL when no match is found.
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# -*- coding: UTF-8 -*-
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# Copyright (c) 2010 - 2011, Pascal Volk
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# See COPYING for distribution information.
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"""
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    VirtualMailManager.pycompat
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    VirtualMailManager's compatibility stuff for Python 2.4
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"""
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# http://docs.python.org/library/functions.html#all
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try:
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    all = all
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except NameError:
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    def all(iterable):
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        """Return True if all elements of the *iterable* are true
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        (or if the iterable is empty).
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        """
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        for element in iterable:
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            if not element:
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                return False
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        return True
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# http://docs.python.org/library/functions.html#any
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try:
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    any = any
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except NameError:
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    def any(iterable):
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        """Return True if any element of the *iterable* is true.  If the
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        iterable is empty, return False.
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        """
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        for element in iterable:
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            if element:
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                return True
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        return False