#!/usr/bin/env python

# -*- coding: UTF-8 -*-

# Copyright 2007-2008 VEB IT

# See COPYING for distribution information.

# $Id$

"""This is the vmm main script."""

__author__ = 'Pascal Volk <p.volk@veb-it.de>'

__version__ = 'rev '+'$Rev$'.split()[1]

__date__ = '$Date$'.split()[1]

import os

import sys

from getpass import getpass

#sys.path.insert(0, '/usr/local/lib/VirtualMailManager')

from VirtualMailManager.VirtualMailManager import VirtualMailManager

from VirtualMailManager.Config import VMMConfig

import VirtualMailManager.Exceptions as VMME

import VirtualMailManager.constants.EXIT as EXIT

def usage(excode=0, errMsg=None):

    sys.stderr.write("""\

Usage: vmm OPTION OBJECT ARGS*

  short long

  option                object           args (* = optional)

  da    domainadd       domain.tld       transport*

  di    domaininfo      domain.tld       detailed*

  dt    domaintransport domain.tld       transport

  dd    domaindelete    domain.tld       delalias*|deluser*|delall*

  ua    useradd         user@domain.tld  password*

  ui    userinfo        user@domain.tld  du*

  un    username        user@domain.tld  'Users Name'

  up    userpassword    user@domain.tld  password*

  u0    userdisable     user@domain.tld

  u1    userenable      user@domain.tld

  ud    userdelete      user@domain.tld

  aa    aliasadd        alias@domain.tld user@domain.tld

  ai    aliasinfo       alias@domain.tld

  ad    aliasdelete     alias@domain.tld

  cf    configure                        section*

  h     help

  v     version

""")

    if not errMsg is None:

        sys.stderr.write('Error: %s\n' % errMsg)

    sys.exit(excode)

def getVMM():

    try:

        vmm = VirtualMailManager()

        return vmm

    except VMME.MANotRootException, e:

        sys.stderr.write(str(e))

        sys.exit(EXIT.CONF_NOPERM)

    except IOError, e:

        sys.stderr.write(str(e))

        sys.exit(EXIT.CONF_NOFILE)

    except VMME.MAPermException, e:

        sys.stderr.write(str(e))

        sys.exit(EXIT.CONF_WRONGPERM)

def configure():

    try:

        if len(sys.argv) < 3:

            vmm.configure()

        else:

            vmm.configure(sys.argv[2])

    except (EOFError, KeyboardInterrupt):

        sys.stderr.write('\nOuch!\n')

        sys.exit(EXIT.USER_INTERRUPT)

    except VMME.VMMConfigException, e:

        sys.stderr.write(str(e))

        sys.exit(EXIT.CONF_ERROR)

    sys.exit(0)

def _readpass():

    clear0 = ''

    clear1 = '1'

    while clear0 != clear1:

        while len(clear0) < 1:

            clear0 = getpass(prompt='Enter new password: ')

            if len(clear0) < 1:

                sys.stderr.write('Sorry, empty passwords are not permitted\n')

        clear1 = getpass(prompt='Retype new password: ')

        if clear0 != clear1:

            clear0 = ''

            sys.stderr.write('Sorry, passwords do not match\n')

    return clear0

def _printInfo(info, title):

    msg = title+' information'

    print '%s\n%s' % (msg, '-'*len(msg))

    for k,v in info.items():

        print '\t%s: %s' % (k.title().ljust(15, '.'), v)

    print

def _printUsers(users, title):

    msg = 'Available '+title

    print '%s\n%s' % (msg, '-'*len(msg))

    if len(users) > 0:

        for user in users:

            print '\t%s' % user

    else:

        print '\tNone'

    print

def _printAliases(alias, targets):

    msg = 'Alias information'

    print '%s\n%s' % (msg, '-'*len(msg))

    print '\tMail for %s goes to:' % alias

    if len(targets) > 0:

        for target in targets:

            print '\t     -> %s' % target

    else:

        print '\tNone'

    print

def domain_add():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing domain name.')

    elif argc < 4:

        vmm.domain_add(sys.argv[2].lower())

    else:

        vmm.domain_add(sys.argv[2].lower(), sys.argv[3])

def domain_delete():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing domain name.')

    elif argc < 4:

        vmm.domain_delete(sys.argv[2].lower())

    else:

        vmm.domain_delete(sys.argv[2].lower(), sys.argv[3])

def domain_info():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing domain name.')

    elif argc < 4:

        _printInfo(vmm.domain_info(sys.argv[2].lower()), 'Domain')

    else:

        infos = vmm.domain_info(sys.argv[2].lower(), sys.argv[3])

        _printInfo(infos[0], 'Domain')

        _printUsers(infos[1], 'accounts')

        _printUsers(infos[2], 'aliases')

def domain_transport():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing domain name and new transport.')

    if argc < 4:

        usage(EXIT.MISSING_ARGS, 'Missing new transport.')

    else:

        vmm.domain_transport(sys.argv[2].lower(), sys.argv[3])

def user_add():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    elif argc < 4:

        password = _readpass()

    else:

        password = sys.argv[3]

    vmm.user_add(sys.argv[2].lower(), password)

def user_delete():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    else:

        vmm.user_delete(sys.argv[2].lower())

def user_info():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    elif argc < 4:

        _printInfo(vmm.user_info(sys.argv[2].lower()), 'Account')

    else:

        _printInfo(vmm.user_info(sys.argv[2].lower(), True), 'Account')

def user_name():

    global argc

    if argc < 4:

        usage(EXIT.MISSING_ARGS, 'Missing email address an users name.')

    else:

        vmm.user_name(sys.argv[2].lower(), sys.argv[3])

def user_enable():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    else:

        vmm.user_enable(sys.argv[2].lower())

def user_disable():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    else:

        vmm.user_disable(sys.argv[2].lower())

def user_password():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing email address.')

    elif argc < 4:

        password = _readpass()

    else:

        password = sys.argv[3]

    vmm.user_password(sys.argv[2].lower(), password)

def alias_add():

    global argc

    if argc < 4:

        usage(EXIT.MISSING_ARGS, 'Missing alias address and destination.')

    else:

        vmm.alias_add(sys.argv[2].lower(), sys.argv[3])

def alias_info():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing alias address')

    else:

        _printAliases(sys.argv[2], vmm.alias_info(sys.argv[2].lower()))

def alias_delete():

    global argc

    if argc < 3:

        usage(EXIT.MISSING_ARGS, 'Missing alias address')

    else:

        vmm.alias_delete(sys.argv[2].lower())

def showWarnings():

    if vmm.hasWarnings():

        print '\nWarnings:'

        for w in vmm.getWarnings():

            print " * ",w

#def main():

if __name__ == '__main__':

    argc = len(sys.argv)

    if argc < 2:

        usage(EXIT.MISSING_ARGS) # -> exit

    vmm = getVMM()

    try:

        if sys.argv[1] in ['cf',  'configure'] or not vmm.setupIsDone():

            configure()

    except VMME.VMMConfigException, e:

        sys.stderr.write(str(e))

        sys.exit(EXIT.CONF_ERROR)

    except VMME.VMMException, e:

        sys.stderr.write("\aERROR: %s\n" % e[0][0])

        sys.exit(e[0][1])

    try:

        if sys.argv[1] in ['da', 'domainadd']:

            domain_add()

        elif sys.argv[1] in ['di', 'domaininfo']:

            domain_info()

        elif sys.argv[1] in ['dt', 'domaintransport']:

            domain_transport()

        elif sys.argv[1] in ['dd', 'domaindelete']:

            domain_delete()

        elif sys.argv[1] in ['ua', 'useradd']:

            user_add()

        elif sys.argv[1] in ['ui', 'userinfo']:

            user_info()

        elif sys.argv[1] in ['un', 'username']:

            user_name()

        elif sys.argv[1] in ['up', 'userpassword']:

            user_password()

        elif sys.argv[1] in ['u0', 'userdisable']:

            user_disable()

        elif sys.argv[1] in ['u1', 'userenable']:

            user_enable()

        elif sys.argv[1] in ['ud', 'userdelete']:

            user_delete()

        elif sys.argv[1] in ['aa', 'aliasadd']:

            alias_add()

        elif sys.argv[1] in ['ai', 'aliasinfo']:

            alias_info()

        elif sys.argv[1] in ['ad', 'aliasdelete']:

            alias_delete()

        elif sys.argv[1] in ['h', 'help']:

            usage()

        elif sys.argv[1] in ['v', 'version']:

            print "%s: %s (Date: %s)\n" % (os.path.basename(sys.argv[0]),

                    __version__, __date__)

        else:

            sys.stderr.write('Unknown option: "%s"\n' % sys.argv[1])

            usage(EXIT.UNKNOWN_OPTION)

        showWarnings()

    except (EOFError, KeyboardInterrupt):

        sys.stderr.write('\nOuch!\n')

        sys.exit(EXIT.USER_INTERRUPT)

    except VMME.VMMException, e:

        sys.stderr.write("\aERROR: %s\n" % e[0][0])

        sys.exit(e[0][1])