+
−# -*- coding: UTF-8 -*-
+
−# Copyright (c) 2008 - 2010, Pascal Volk
+
−# See COPYING for distribution information.
+
−
+
−"""Virtual Mail Manager's EmailAddress class to handle e-mail addresses."""
+
−
+
−import re
+
−
+
−from VirtualMailManager import chk_domainname
+
−from VirtualMailManager.constants.ERROR import \
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−     DOMAIN_NO_NAME, INVALID_ADDRESS, LOCALPART_INVALID, LOCALPART_TOO_LONG
+
−from VirtualMailManager.Exceptions import VMMEmailAddressException as VMMEAE
+
−
+
−
+
−RE_LOCALPART = """[^\w!#$%&'\*\+-\.\/=?^_`{\|}~]"""
+
−
+
−
+
−class EmailAddress(object):
+
−    __slots__ = ('_localpart', '_domainname')
+
−
+
−    def __init__(self, address):
+
−        if not isinstance(address, basestring):
+
−            raise TypeError('address is not a str/unicode object: %r' %
+
−                            address)
+
−        self._localpart = None
+
−        self._domainname = None
+
−        self.__chkAddress(address)
+
−
+
−    def __eq__(self, other):
+
−        if isinstance(other, self.__class__):
+
−            return self._localpart == other._localpart and \
+
−                    self._domainname == other._domainname
+
−        return NotImplemented
+
−
+
−    def __ne__(self, other):
+
−        if isinstance(other, self.__class__):
+
−            return self._localpart != other._localpart or \
+
−                    self._domainname != other._domainname
+
−        return NotImplemented
+
−
+
−    def __repr__(self):
+
−        return "EmailAddress('%s@%s')" % (self._localpart, self._domainname)
+
−
+
−    def __str__(self):
+
−        return "%s@%s" % (self._localpart, self._domainname)
+
−
+
−    def __chkAddress(self, address):
+
−        parts = address.split('@')
+
−        p_len = len(parts)
+
−        if p_len is 2:
+
−            self._localpart = self.__chkLocalpart(parts[0])
+
−            if len(parts[1]) > 0:
+
−                self._domainname = chk_domainname(parts[1])
+
−            else:
+
−                raise VMMEAE(_(u"Missing domain name after “%s@”.") %
+
−                             self._localpart, DOMAIN_NO_NAME)
+
−        elif p_len < 2:
+
−            raise VMMEAE(_(u"Missing '@' sign in e-mail address “%s”.") %
+
−                         address, INVALID_ADDRESS)
+
−        elif p_len > 2:
+
−            raise VMMEAE(_(u"Too many '@' signs in e-mail address “%s”.") %
+
−                         address, INVALID_ADDRESS)
+
−
+
−    def __chkLocalpart(self, localpart):
+
−        """Validates the local-part of an e-mail address.
+
−
+
−        Arguments:
+
−        localpart -- local-part of the e-mail address that should be validated
+
−        """
+
−        if len(localpart) < 1:
+
−            raise VMMEAE(_(u'No local-part specified.'), LOCALPART_INVALID)
+
−        if len(localpart) > 64:
+
−            raise VMMEAE(_(u'The local-part “%s” is too long') % localpart,
+
−                         LOCALPART_TOO_LONG)
+
−        ic = set(re.findall(RE_LOCALPART, localpart))
+
−        if len(ic):
+
−            ichrs = u''.join((u'“%s” ' % c for c in ic))
+
−            raise VMMEAE(_(u"The local-part “%(lpart)s” contains invalid\
+
− characters: %(ichrs)s") % {'lpart': localpart, 'ichrs': ichrs},
+
−                         LOCALPART_INVALID)
+
−        return localpart