VirtualMailManager/Domain.py
author Pascal Volk <neverseen@users.sourceforge.net>
Sat, 13 Feb 2010 03:20:42 +0000
branchv0.6.x
changeset 204 83938336c518
parent 199 0684790fff7c
child 216 0c8c053b451c
permissions -rw-r--r--
VMM/{,cli/}Config: fixed imports. Small code cleanups and cosmetic.
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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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"""Virtual Mail Manager's Domain class to manage e-mail domains."""
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from random import choice
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from VirtualMailManager import check_domainname
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from VirtualMailManager.constants.ERROR import \
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     ACCOUNT_AND_ALIAS_PRESENT, ACCOUNT_PRESENT, ALIAS_PRESENT, \
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     DOMAIN_ALIAS_EXISTS, DOMAIN_EXISTS, NO_SUCH_DOMAIN
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from VirtualMailManager.Exceptions import VMMDomainException as VMMDE
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from VirtualMailManager.Transport import Transport
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MAILDIR_CHARS = '0123456789abcdefghijklmnopqrstuvwxyz'
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class Domain(object):
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    """Class to manage e-mail domains."""
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    __slots__ = ('_basedir','_domaindir','_id','_name','_transport','_dbh')
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    def __init__(self, dbh, domainname, basedir=None, transport=None):
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        """Creates a new Domain instance.
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        Keyword arguments:
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        dbh -- a pyPgSQL.PgSQL.connection
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        domainname -- name of the domain (str)
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        transport -- default vmm.cfg/misc/transport  (str)
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        """
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        self._dbh = dbh
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        self._name = check_domainname(domainname)
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        self._basedir = basedir
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        if transport is not None:
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            self._transport = Transport(self._dbh, transport=transport)
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        else:
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            self._transport = transport
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        self._id = 0
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        self._domaindir = None
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        if not self._exists() and self._isAlias():
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            raise VMMDE(_(u"The domain “%s” is an alias domain.") % self._name,
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                        DOMAIN_ALIAS_EXISTS)
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    def _exists(self):
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        """Checks if the domain already exists.
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        If the domain exists _id will be set and returns True, otherwise False
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        will be returned.
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        """
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        dbc = self._dbh.cursor()
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        dbc.execute("SELECT gid, tid, domaindir FROM domain_data WHERE gid =\
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 (SELECT gid FROM domain_name WHERE domainname = %s AND is_primary)",
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                self._name)
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        result = dbc.fetchone()
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        dbc.close()
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        if result is not None:
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            self._id, self._domaindir = result[0], result[2]
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            self._transport = Transport(self._dbh, tid=result[1])
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            return True
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        else:
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            return False
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    def _isAlias(self):
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        """Checks if self._name is known for an alias domain."""
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        dbc = self._dbh.cursor()
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        dbc.execute('SELECT is_primary FROM domain_name WHERE domainname = %s',
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                self._name)
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        result = dbc.fetchone()
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        dbc.close()
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        if result is not None and not result[0]:
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            return True
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        else:
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            return False
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    def _setID(self):
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        """Sets the ID of the domain."""
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        dbc = self._dbh.cursor()
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        dbc.execute("SELECT nextval('domain_gid')")
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        self._id = dbc.fetchone()[0]
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        dbc.close()
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    def _prepare(self):
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        self._setID()
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        self._domaindir = "%s/%s/%i" % (self._basedir, choice(MAILDIR_CHARS),
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                self._id)
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    def _has(self, what):
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        """Checks if aliases or accounts are assigned to the domain.
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        If there are assigned accounts or aliases True will be returned,
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        otherwise False will be returned.
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        Keyword arguments:
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        what -- 'alias' or 'users' (strings)
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        """
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        if what not in ['alias', 'users']:
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            return False
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        dbc = self._dbh.cursor()
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        if what == 'users':
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            dbc.execute("SELECT count(gid) FROM users WHERE gid=%s", self._id)
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        else:
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            dbc.execute("SELECT count(gid) FROM alias WHERE gid=%s", self._id)
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        count = dbc.fetchone()
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        dbc.close()
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        if count[0] > 0:
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            return True
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        else:
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            return False
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    def _chkDelete(self, delUser, delAlias):
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        """Checks dependencies for deletion.
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        Keyword arguments:
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        delUser -- ignore available accounts (bool)
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        delAlias -- ignore available aliases (bool)
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        """
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        if not delUser:
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            hasUser = self._has('users')
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        else:
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            hasUser = False
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        if not delAlias:
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            hasAlias = self._has('alias')
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        else:
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            hasAlias = False
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        if hasUser and hasAlias:
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            raise VMMDE(_(u'There are accounts and aliases.'),
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                ACCOUNT_AND_ALIAS_PRESENT)
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        elif hasUser:
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            raise VMMDE(_(u'There are accounts.'), ACCOUNT_PRESENT)
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        elif hasAlias:
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            raise VMMDE(_(u'There are aliases.'), ALIAS_PRESENT)
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    def save(self):
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        """Stores the new domain in the database."""
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        if self._id < 1:
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            self._prepare()
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            dbc = self._dbh.cursor()
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            dbc.execute("INSERT INTO domain_data (gid, tid, domaindir)\
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 VALUES (%s, %s, %s)", self._id, self._transport.getID(), self._domaindir)
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            dbc.execute("INSERT INTO domain_name (domainname, gid, is_primary)\
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 VALUES (%s, %s, %s)", self._name, self._id, True)
0
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            self._dbh.commit()
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            dbc.close()
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        else:
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            raise VMMDE(_(u'The domain “%s” already exists.') % self._name,
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                        DOMAIN_EXISTS)
0
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    def delete(self, delUser=False, delAlias=False):
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        """Deletes the domain.
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        Keyword arguments:
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        delUser -- force deletion of available accounts (bool)
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        delAlias -- force deletion of available aliases (bool)
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        """
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        if self._id > 0:
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            self._chkDelete(delUser, delAlias)
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            dbc = self._dbh.cursor()
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            for t in ('alias','users','relocated','domain_name','domain_data'):
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                dbc.execute("DELETE FROM %s WHERE gid = %d" % (t, self._id))
0
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            self._dbh.commit()
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            dbc.close()
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        else:
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            raise VMMDE(_(u"The domain “%s” doesn't exist.") % self._name,
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                        NO_SUCH_DOMAIN)
0
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50
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    def updateTransport(self, transport, force=False):
0
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        """Sets a new transport for the domain.
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        Keyword arguments:
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        transport -- the new transport (str)
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        force -- True/False force new transport for all accounts (bool)
0
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        """
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        if self._id > 0:
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            if transport == self._transport.getTransport():
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                return
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            trsp = Transport(self._dbh, transport=transport)
0
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            dbc = self._dbh.cursor()
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            dbc.execute("UPDATE domain_data SET tid = %s WHERE gid = %s",
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                    trsp.getID(), self._id)
0
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            if dbc.rowcount > 0:
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                self._dbh.commit()
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            if force:
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                dbc.execute("UPDATE users SET tid = %s WHERE gid = %s",
18
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                        trsp.getID(), self._id)
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                if dbc.rowcount > 0:
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                    self._dbh.commit()
0
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            dbc.close()
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        else:
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            raise VMMDE(_(u"The domain “%s” doesn't exist.") % self._name,
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                        NO_SUCH_DOMAIN)
0
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    def getID(self):
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        """Returns the ID of the domain."""
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        return self._id
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    def getDir(self):
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        """Returns the directory of the domain."""
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        return self._domaindir
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    def getTransport(self):
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        """Returns domain's transport."""
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        return self._transport.getTransport()
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    def getTransportID(self):
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        """Returns the ID from the domain's transport."""
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        return self._transport.getID()
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0
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    def getInfo(self):
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        """Returns a dictionary with information about the domain."""
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        sql = """\
80
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   211
SELECT gid, domainname, transport, domaindir, aliasdomains, accounts,
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       aliases, relocated
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  FROM vmm_domain_info
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 WHERE gid = %i""" % self._id
0
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        dbc = self._dbh.cursor()
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        dbc.execute(sql)
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        info = dbc.fetchone()
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        dbc.close()
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        if info is None:
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   220
            raise VMMDE(_(u"The domain “%s” doesn't exist.") % self._name,
185
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   221
                        NO_SUCH_DOMAIN)
0
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   222
        else:
44
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   223
            keys = ['gid', 'domainname', 'transport', 'domaindir',
80
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   224
                    'aliasdomains', 'accounts', 'aliases', 'relocated']
0
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   225
            return dict(zip(keys, info))
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   226
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    def getAccounts(self):
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   228
        """Returns a list with all accounts from the domain."""
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   229
        dbc = self._dbh.cursor()
44
c9ab6900ede9 * 'VirtualMailManager/VirtualMailManager.py'
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diff changeset
   230
        dbc.execute("SELECT local_part from users where gid = %s ORDER BY\
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diff changeset
   231
 local_part", self._id)
0
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   232
        users = dbc.fetchall()
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   233
        dbc.close()
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   234
        accounts = []
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   235
        if len(users) > 0:
142
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   236
            addr = u'@'.join
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            _dom = self._name
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            accounts = [addr((account[0], _dom)) for account in users]
0
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   239
        return accounts
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    def getAliases(self):
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        """Returns a list with all aliases from the domain."""
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        dbc = self._dbh.cursor()
58
1692da96ec17 * 'VirtualMailManager/Domain.py'
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diff changeset
   244
        dbc.execute("SELECT DISTINCT address FROM alias WHERE gid = %s\
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   245
 ORDER BY address",  self._id)
0
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   246
        addresses = dbc.fetchall()
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   247
        dbc.close()
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   248
        aliases = []
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   249
        if len(addresses) > 0:
142
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   250
            addr = u'@'.join
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diff changeset
   251
            _dom = self._name
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   252
            aliases = [addr((alias[0], _dom)) for alias in addresses]
0
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   253
        return aliases
35
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   254
80
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   255
    def getRelocated(self):
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   256
        """Returns a list with all addresses from relocated users."""
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        dbc = self._dbh.cursor()
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   258
        dbc.execute("SELECT address FROM relocated WHERE gid = %s\
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   259
 ORDER BY address", self._id)
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        addresses = dbc.fetchall()
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   261
        dbc.close()
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   262
        relocated = []
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   263
        if len(addresses) > 0:
142
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diff changeset
   264
            addr = u'@'.join
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   265
            _dom = self._name
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   266
            relocated = [addr((address[0], _dom)) for address in addresses]
80
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   267
        return relocated
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diff changeset
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44
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    def getAliaseNames(self):
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        """Returns a list with all alias names from the domain."""
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        dbc = self._dbh.cursor()
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        dbc.execute("SELECT domainname FROM domain_name WHERE gid = %s\
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 AND NOT is_primary ORDER BY domainname", self._id)
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        anames = dbc.fetchall()
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        dbc.close()
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        aliasdomains = []
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        if len(anames) > 0:
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            aliasdomains = [aname[0] for aname in anames]
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        return aliasdomains
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def search(dbh, pattern=None, like=False):
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    if pattern is not None and like is False:
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        pattern = check_domainname(pattern)
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    sql = 'SELECT gid, domainname, is_primary FROM domain_name'
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    if pattern is None:
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        pass
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    elif like:
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        sql += " WHERE domainname LIKE '%s'" % pattern
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    else:
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        sql += " WHERE domainname = '%s'" % pattern
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    sql += ' ORDER BY is_primary DESC, domainname'
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    dbc = dbh.cursor()
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    dbc.execute(sql)
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    doms = dbc.fetchall()
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    dbc.close()
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    domdict = {}
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    order = [dom[0] for dom in doms if dom[2]]
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    if len(order) == 0:
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        for dom in doms:
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            if dom[0] not in order:
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                order.append(dom[0])
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    for gid, dom, is_primary in doms:
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        if is_primary:
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            domdict[gid] = [dom]
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        else:
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            try:
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                domdict[gid].append(dom)
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            except KeyError:
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                domdict[gid] = [None, dom]
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    del doms
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    return order, domdict
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   315
def get_gid(dbh, domainname):
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    """Returns the *GID* of the domain *domainname*.
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    Raises an `VMMDomainException` if the domain does not exist.
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    """
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    domainname = check_domainname(domainname)
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    dbc = dbh.cursor()
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    dbc.execute('SELECT gid FROM domain_name WHERE domainname=%s', domainname)
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    gid = dbc.fetchone()
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    dbc.close()
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   325
    if gid:
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        return gid[0]
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   327
    else:
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        raise VMMDE(_(u"The domain “%s” doesn't exist.") % domainname,
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   329
                    NO_SUCH_DOMAIN)