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# Copyright (C) 2009 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import absolute_import
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from email import Utils
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class UserMapper(object):
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def __init__(self, lines):
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"""Create a user-mapper from a list of lines.
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Blank lines and comment lines (starting with #) are ignored.
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Otherwise lines are of the form:
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Each id may be in the following forms:
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If old-id has the value '@', then new-id is the domain to use
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when generating an email from a user-id.
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def _parse(self, lines):
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self._default_domain = None
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if len(line) == 0 or line.startswith('#'):
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old, new = line.split('=', 1)
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self._default_domain = new
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# Parse each id into a name and email address
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old_name, old_email = self._parse_id(old)
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new_name, new_email = self._parse_id(new)
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#print "found user map: %s => %s" % ((old_name, old_email), (new_name, new_email))
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self._user_map[(old_name, old_email)] = (new_name, new_email)
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def _parse_id(self, id):
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if id.find('<') == -1:
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return Utils.parseaddr(id)
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def map_name_and_email(self, name, email):
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"""Map a name and an email to the preferred name and email.
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:param name: the current name
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:param email: the current email
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:result: the preferred name and email
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new_name, new_email = self._user_map[(name, email)]
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if self._default_domain and not email:
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new_email = "%s@%s" % (name, self._default_domain)
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return new_name, new_email