VirtualMailManager/Account.py
author Pascal Volk <neverseen@users.sourceforge.net>
Fri, 16 Apr 2010 03:58:07 +0000
branchv0.6.x
changeset 254 8aecc83a0d32
parent 252 af555e6967c8
child 264 04fea4d8b900
permissions -rw-r--r--
VMM: moved functions ace2idna(), check_domainname(), idn2ascii() and relevant parts to the Domain module. Adjusted imports in modules AliasDomain, EmailAddress and Handler.
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# -*- coding: UTF-8 -*-
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# Copyright (c) 2007 - 2010, Pascal Volk
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# See COPYING for distribution information.
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"""
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    VirtualMailManager.Account
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    Virtual Mail Manager's Account class to manage e-mail accounts.
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"""
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from VirtualMailManager.Domain import Domain
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from VirtualMailManager.EmailAddress import EmailAddress
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from VirtualMailManager.Transport import Transport
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from VirtualMailManager.constants.ERROR import \
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     ACCOUNT_EXISTS, ACCOUNT_MISSING_PASSWORD, ALIAS_PRESENT, \
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     INVALID_AGUMENT, NO_SUCH_ACCOUNT, NO_SUCH_DOMAIN, \
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     UNKNOWN_MAILLOCATION_NAME, UNKNOWN_SERVICE
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from VirtualMailManager.errors import AccountError as AErr
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from VirtualMailManager.maillocation import MailLocation, known_format
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from VirtualMailManager.pycompat import all
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_ = lambda msg: msg
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class Account(object):
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    """Class to manage e-mail accounts."""
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    __slots__ = ('_addr', '_domain', '_mid', '_new', '_passwd', '_tid', '_uid',
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                 '_dbh')
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    def __init__(self, dbh, address):
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        """Creates a new Account instance.
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        When an account with the given *address* could be found in the
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        database all relevant data will be loaded.
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        Arguments:
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        `dbh` : pyPgSQL.PgSQL.Connection
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          A database connection for the database access.
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        `address` : basestring
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          The e-mail address of the (new) Account.
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        """
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        if not isinstance(address, EmailAddress):
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            raise TypeError("Argument 'address' is not an EmailAddress")
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        self._addr = address
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        self._dbh = dbh
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        self._domain = Domain(self._dbh, self._addr.domainname)
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        if not self._domain.gid:
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            raise AErr(_(u"The domain '%s' doesn't exist.") %
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                       self._addr.domainname, NO_SUCH_DOMAIN)
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        self._uid = 0
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        self._mid = 0
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        self._tid = 0
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        self._passwd = None
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        self._new = True
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        self._load()
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    def _load(self):
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        """Load 'uid', 'mid' and 'tid' from the database and set _new to
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        `False` - if the user could be found. """
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        dbc = self._dbh.cursor()
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        dbc.execute(
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            "SELECT uid, mid, tid FROM users WHERE gid=%s AND local_part=%s",
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                    self._domain.gid, self._addr.localpart)
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        result = dbc.fetchone()
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        dbc.close()
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        if result:
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            self._uid, self._mid, self._tid = result
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            self._new = False
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    def _set_uid(self):
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        """Set the unique ID for the new Account."""
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        assert self._uid == 0
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        dbc = self._dbh.cursor()
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        dbc.execute("SELECT nextval('users_uid')")
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        self._uid = dbc.fetchone()[0]
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        dbc.close()
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    def _prepare(self, maillocation):
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        """Check and set different attributes - before we store the
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        information in the database."""
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        if not known_format(maillocation):
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            raise AErr(_(u'Unknown mail_location mailbox format: %r') %
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                       maillocation, UNKNOWN_MAILLOCATION_NAME)
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        self._mid = MailLocation(format=maillocation).mid
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        if not self._tid:
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            self._tid = self._domain.transport.tid
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        self._set_uid()
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    def _switch_state(self, state, dcvers, service):
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        """Switch the state of the Account's services on or off. See
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        Account.enable()/Account.disable() for more information."""
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        self._chk_state()
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        if service not in (None, 'all', 'imap', 'pop3', 'sieve', 'smtp'):
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            raise AErr(_(u"Unknown service: '%s'.") % service, UNKNOWN_SERVICE)
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        if dcvers > 11:
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            sieve_col = 'sieve'
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        else:
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            sieve_col = 'managesieve'
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        if service in ('smtp', 'pop3', 'imap'):
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            sql = 'UPDATE users SET %s = %s WHERE uid = %d' % (service, state,
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                                                               self._uid)
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        elif service == 'sieve':
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            sql = 'UPDATE users SET %s = %s WHERE uid = %d' % (sieve_col,
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                                                               state,
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                                                               self._uid)
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        else:
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            sql = 'UPDATE users SET smtp = %(s)s, pop3 = %(s)s, imap = %(s)s,\
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 %(col)s = %(s)s WHERE uid = %(uid)d' % \
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                {'s': state, 'col': sieve_col, 'uid': self._uid}
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        dbc = self._dbh.cursor()
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        dbc.execute(sql)
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        if dbc.rowcount > 0:
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            self._dbh.commit()
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        dbc.close()
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    def _count_aliases(self):
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        """Count all alias addresses where the destination address is the
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        address of the Account."""
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        dbc = self._dbh.cursor()
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        sql = "SELECT COUNT(destination) FROM alias WHERE destination = '%s'"\
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                % self._addr
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        dbc.execute(sql)
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        a_count = dbc.fetchone()[0]
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        dbc.close()
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        return a_count
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    def _chk_state(self):
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        """Raise an AccountError if the Account is new - not yet saved in the
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        database."""
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        if self._new:
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            raise AErr(_(u"The account '%s' doesn't exist.") % self._addr,
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                       NO_SUCH_ACCOUNT)
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    @property
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    def address(self):
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        """The Account's EmailAddress instance."""
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        return self._addr
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    @property
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    def domain_directory(self):
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        """The directory of the domain the Account belongs to."""
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        return self._domain.directory
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    @property
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    def gid(self):
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        """The Account's group ID."""
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        return self._domain.gid
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    @property
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    def home(self):
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        """The Account's home directory."""
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        return '%s/%s' % (self._domain.directory, self._uid)
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    @property
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    def uid(self):
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        """The Account's unique ID."""
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        return self._uid
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    def set_password(self, password):
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        """Set a password for the new Account.
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        If you want to update the password of an existing Account use
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        Account.modify().
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        Argument:
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        `password` : basestring
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          The hashed password for the new Account."""
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        self._passwd = password
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    def set_transport(self, transport):
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        """Set the transport for the new Account.
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        If you want to update the transport of an existing Account use
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        Account.modify().
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        Argument:
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        `transport` : basestring
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          The string representation of the transport, e.g.: 'dovecot:'
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        """
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        self._tid = Transport(self._dbh, transport=transport).tid
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    def enable(self, dcvers, service=None):
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        """Enable a/all service/s for the Account.
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        Possible values for the *service* are: 'imap', 'pop3', 'sieve' and
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        'smtp'. When all services should be enabled, use 'all' or the
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        default value `None`.
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        Arguments:
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        `dcvers` : int
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          The concatenated major and minor version number from
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          `dovecot --version`.
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        `service` : basestring
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          The name of a service ('imap', 'pop3', 'smtp', 'sieve'), 'all'
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          or `None`.
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        """
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        self._switch_state(True, dcvers, service)
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    def disable(self, dcvers, service=None):
245
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        """Disable a/all service/s for the Account.
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        For more information see: Account.enable()."""
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        self._switch_state(False, dcvers, service)
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    def save(self, maillocation, dcvers, smtp, pop3, imap, sieve):
245
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        """Save the new Account in the database.
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        Arguments:
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        `maillocation` : basestring
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          The mailbox format of the mail_location: 'maildir', 'mbox',
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          'dbox' or 'mdbox'.
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        `dcvers` : int
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          The concatenated major and minor version number from
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          `dovecot --version`.
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        `smtp, pop3, imap, sieve` : bool
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          Indicates if the user of the Account should be able to use this
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          services.
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        """
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        if not self._new:
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            raise AErr(_(u"The account '%s' already exists.") % self._addr,
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                       ACCOUNT_EXISTS)
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        if not self._passwd:
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            raise AErr(_(u"No password set for '%s'.") % self._addr,
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   230
                       ACCOUNT_MISSING_PASSWORD)
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        assert all(isinstance(service, bool) for service in (smtp, pop3, imap,
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                                                             sieve))
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        if dcvers > 11:
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            sieve_col = 'sieve'
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        else:
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            sieve_col = 'managesieve'
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        self._prepare(maillocation)
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        sql = "INSERT INTO users (local_part, passwd, uid, gid, mid, tid,\
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 smtp, pop3, imap, %s) VALUES ('%s', '%s', %d, %d, %d, %d, %s, %s, %s, %s)" % (
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            sieve_col, self._addr.localpart, self._passwd, self._uid,
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            self._domain.gid, self._mid, self._tid, smtp, pop3, imap, sieve)
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        dbc = self._dbh.cursor()
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        dbc.execute(sql)
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        self._dbh.commit()
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        dbc.close()
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        self._new = False
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    def modify(self, field, value):
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        """Update the Account's *field* to the new *value*.
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245
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        Possible values for *filed* are: 'name', 'password' and
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        'transport'.  *value* is the *field*'s new value.
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   253
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        Arguments:
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        `field` : basestring
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          The attribute name: 'name', 'password' or 'transport'
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        `value` : basestring
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          The new value of the attribute. The password is expected as a
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          hashed password string.
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   261
        """
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        if field not in ('name', 'password', 'transport'):
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   263
            raise AErr(_(u"Unknown field: '%s'") % field, INVALID_AGUMENT)
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   264
        self._chk_state()
0
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        dbc = self._dbh.cursor()
245
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        if field == 'password':
121
7ccc05774118 Converted to new-style class, added __slots__, updated queries.
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            dbc.execute('UPDATE users SET passwd = %s WHERE uid = %s',
245
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   268
                        value, self._uid)
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   269
        elif field == 'transport':
235
9d3405ed08e5 VMM/Transport: Renamed attribute/property {,_}id to {,_}tid.
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            self._tid = Transport(self._dbh, transport=value).tid
121
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            dbc.execute('UPDATE users SET tid = %s WHERE uid = %s',
245
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   272
                        self._tid, self._uid)
0
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        else:
121
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            dbc.execute('UPDATE users SET name = %s WHERE uid = %s',
245
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                        value, self._uid)
0
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        if dbc.rowcount > 0:
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            self._dbh.commit()
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        dbc.close()
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245
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   280
    def get_info(self, dcvers):
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        """Returns a dict with some information about the Account.
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   282
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        The keys of the dict are: 'address', 'gid', 'home', 'imap'
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   284
        'mail_location', 'name', 'pop3', 'sieve', 'smtp', transport' and
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   285
        'uid'.
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        Argument:
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        `dcvers` : int
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   290
          The concatenated major and minor version number from
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   291
          `dovecot --version`.
f9a6b6701cf9 VMM/Account: reworked class Account.
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   292
        """
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   293
        self._chk_state()
134
6ca3d22e5dd0 Fixed a Python2.4.4 SyntaxError
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   294
        if dcvers > 11:
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   295
            sieve_col = 'sieve'
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   296
        else:
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   297
            sieve_col = 'managesieve'
115
21f264a88ab2 Added sieve/managesieve switching stuff,
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diff changeset
   298
        sql = 'SELECT name, uid, gid, mid, tid, smtp, pop3, imap, %s\
21f264a88ab2 Added sieve/managesieve switching stuff,
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   299
 FROM users WHERE uid = %d' % (sieve_col, self._uid)
0
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        dbc = self._dbh.cursor()
115
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        dbc.execute(sql)
0
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        info = dbc.fetchone()
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        dbc.close()
245
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   304
        if info:
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   305
            keys = ('name', 'uid', 'gid', 'mid', 'transport', 'smtp',
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   306
                    'pop3', 'imap', sieve_col)
0
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   307
            info = dict(zip(keys, info))
115
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   308
            for service in ('smtp', 'pop3', 'imap', sieve_col):
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   309
                if info[service]:
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                    # TP: A service (pop3/imap) is enabled/usable for a user
41
fbcb7e314510 * 'VirtualMailManager/Account.py'
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diff changeset
   311
                    info[service] = _('enabled')
20
55146c78b3fb * 'create_tables.pgsql'
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diff changeset
   312
                else:
156
a849843115e9 Added comments for the Translation Project. Updated PO template.
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   313
                    # TP: A service (pop3/imap) isn't enabled/usable for a user
41
fbcb7e314510 * 'VirtualMailManager/Account.py'
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   314
                    info[service] = _('disabled')
0
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   315
            info['address'] = self._addr
245
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diff changeset
   316
            info['home'] = '%s/%s' % (self._domain.directory, info['uid'])
227
87db9f1f95ea VMM/Account: Adjusted to changes in maillocation.MailLocation.
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   317
            info['mail_location'] = MailLocation(mid=info['mid']).mail_location
246
481280686789 VMM/Account: Account.get_info() use the domain's transport, if tid matches.
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diff changeset
   318
            if info['transport'] == self._domain.transport.tid:
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diff changeset
   319
                info['transport'] = self._domain.transport.transport
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diff changeset
   320
            else:
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diff changeset
   321
                info['transport'] = Transport(self._dbh,
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   322
                                              tid=info['transport']).transport
245
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diff changeset
   323
            del info['mid']
0
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   324
            return info
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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   325
        # nearly impossible‽
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   326
        raise AErr(_(u"Couldn't fetch information for account: '%s'") \
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   327
                   % self._addr, NO_SUCH_ACCOUNT)
0
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diff changeset
   328
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   329
    def get_aliases(self):
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   330
        """Return a list with all alias e-mail addresses, whose destination
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diff changeset
   331
        is the address of the Account."""
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   332
        self._chk_state()
90
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   333
        dbc = self._dbh.cursor()
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   334
        dbc.execute("SELECT address ||'@'|| domainname FROM alias, domain_name\
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   335
 WHERE destination = %s AND domain_name.gid = alias.gid\
145
ead2a7e9f8be Sort alias addresses in Account.getAliases() / vmm userinfo.
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parents: 144
diff changeset
   336
 AND domain_name.is_primary ORDER BY address", str(self._addr))
90
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   337
        addresses = dbc.fetchall()
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   338
        dbc.close()
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   339
        aliases = []
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   340
        if addresses:
144
4c6aa6c29dd7 Small optimizations in Account.getAliases() and Alias.getInfo().
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diff changeset
   341
            aliases = [alias[0] for alias in addresses]
90
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   342
        return aliases
1734eb5101c6 * 'VirtualMailManager/Account.py'
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diff changeset
   343
66
995d538a6eb5 * 'VirtualMailManager/Account.py'
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diff changeset
   344
    def delete(self, delalias):
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   345
        """Delete the Account from the database.
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   346
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   347
        Argument:
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   348
f9a6b6701cf9 VMM/Account: reworked class Account.
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   349
        `delalias` : basestring
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diff changeset
   350
          if the values of delalias is 'delalias', all aliases, which
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   351
          points to the Account, will be also deleted."""
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diff changeset
   352
        self._chk_state()
66
995d538a6eb5 * 'VirtualMailManager/Account.py'
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diff changeset
   353
        dbc = self._dbh.cursor()
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diff changeset
   354
        if delalias == 'delalias':
121
7ccc05774118 Converted to new-style class, added __slots__, updated queries.
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parents: 115
diff changeset
   355
            dbc.execute('DELETE FROM users WHERE uid= %s', self._uid)
65
5506433db9a3 * 'VirtualMailManager/Account.py'
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parents: 55
diff changeset
   356
            # delete also all aliases where the destination address is the same
5506433db9a3 * 'VirtualMailManager/Account.py'
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diff changeset
   357
            # as for this account.
114
e671210b04b8 Fixed a libpq.OperationalError in Account.delete()
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parents: 113
diff changeset
   358
            dbc.execute("DELETE FROM alias WHERE destination = %s",
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   359
                        str(self._addr))
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   360
            self._dbh.commit()
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   361
        else:  # check first for aliases
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diff changeset
   362
            a_count = self._count_aliases()
66
995d538a6eb5 * 'VirtualMailManager/Account.py'
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parents: 65
diff changeset
   363
            if a_count == 0:
121
7ccc05774118 Converted to new-style class, added __slots__, updated queries.
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parents: 115
diff changeset
   364
                dbc.execute('DELETE FROM users WHERE uid = %s', self._uid)
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   365
                self._dbh.commit()
66
995d538a6eb5 * 'VirtualMailManager/Account.py'
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parents: 65
diff changeset
   366
            else:
995d538a6eb5 * 'VirtualMailManager/Account.py'
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diff changeset
   367
                dbc.close()
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   368
                raise AErr(_(u"There are %(count)d aliases with the \
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   369
destination address '%(address)s'.") % \
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   370
                           {'count': a_count, 'address': self._addr},
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   371
                           ALIAS_PRESENT)
66
995d538a6eb5 * 'VirtualMailManager/Account.py'
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diff changeset
   372
        dbc.close()
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   373
225
a51809f7940b VMM/Transport: reworked Transport class.
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parents: 216
diff changeset
   374
252
af555e6967c8 VMM/Account: renamed function getAccountByID -> get_account_by_uid.
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parents: 250
diff changeset
   375
def get_account_by_uid(uid, dbh):
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   376
    """Search an Account by its UID.
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   377
252
af555e6967c8 VMM/Account: renamed function getAccountByID -> get_account_by_uid.
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parents: 250
diff changeset
   378
    This function returns a dict (keys: 'address', 'gid' and 'uid'), if an
af555e6967c8 VMM/Account: renamed function getAccountByID -> get_account_by_uid.
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   379
    Account with the given *uid* exists.
af555e6967c8 VMM/Account: renamed function getAccountByID -> get_account_by_uid.
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parents: 250
diff changeset
   380
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   381
    Argument:
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   382
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   383
    `uid` : long
f9a6b6701cf9 VMM/Account: reworked class Account.
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   384
      The Account unique ID.
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   385
    `dbh` : pyPgSQL.PgSQL.Connection
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   386
      a database connection for the database access.
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   387
    """
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   388
    try:
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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diff changeset
   389
        uid = long(uid)
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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diff changeset
   390
    except ValueError:
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   391
        raise AErr(_(u'UID must be an int/long.'), INVALID_AGUMENT)
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   392
    if uid < 1:
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   393
        raise AErr(_(u'UID must be greater than 0.'), INVALID_AGUMENT)
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   394
    dbc = dbh.cursor()
43
92a6132940f5 * 'VirtualMailManager/Account.py'
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diff changeset
   395
    dbc.execute("SELECT local_part||'@'|| domain_name.domainname AS address,\
92a6132940f5 * 'VirtualMailManager/Account.py'
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parents: 41
diff changeset
   396
 uid, users.gid FROM users LEFT JOIN domain_name ON (domain_name.gid \
92a6132940f5 * 'VirtualMailManager/Account.py'
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parents: 41
diff changeset
   397
 = users.gid AND is_primary) WHERE uid = %s;", uid)
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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diff changeset
   398
    info = dbc.fetchone()
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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diff changeset
   399
    dbc.close()
245
f9a6b6701cf9 VMM/Account: reworked class Account.
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diff changeset
   400
    if not info:
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   401
        raise AErr(_(u"There is no account with the UID '%d'.") % uid,
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   402
                   NO_SUCH_ACCOUNT)
f9a6b6701cf9 VMM/Account: reworked class Account.
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parents: 236
diff changeset
   403
    info = dict(zip(('address', 'uid', 'gid'), info))
19
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   404
    return info
bf9a03c476fc * 'VirtualMailManager/VirtualMailManager.py'
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parents: 17
diff changeset
   405
225
a51809f7940b VMM/Transport: reworked Transport class.
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diff changeset
   406
a51809f7940b VMM/Transport: reworked Transport class.
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diff changeset
   407
del _