Synnefo

# Copyright 2012 GRNET S.A. All rights reserved.

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from optparse import make_option

from django.core.management.base import BaseCommand, CommandError

from django.contrib.auth.models import Group

from django.core.exceptions import ValidationError

from astakos.im.models import AstakosUser

from astakos.im.functions import (activate, deactivate)

from astakos.im import quotas

from ._common import remove_user_permission, add_user_permission, is_uuid

from snf_django.lib.db.transaction import commit_on_success_strict

import string

class Command(BaseCommand):

    args = "<user ID>"

    help = "Modify a user's attributes"

    option_list = BaseCommand.option_list + (

        make_option('--invitations',

                    dest='invitations',

                    metavar='NUM',

                    help="Update user's invitations"),

        make_option('--level',

                    dest='level',

                    metavar='NUM',

                    help="Update user's level"),

        make_option('--password',

                    dest='password',

                    metavar='PASSWORD',

                    help="Set user's password"),

        make_option('--renew-token',

                    action='store_true',

                    dest='renew_token',

                    default=False,

                    help="Renew the user's token"),

        make_option('--renew-password',

                    action='store_true',

                    dest='renew_password',

                    default=False,

                    help="Renew the user's password"),

        make_option('--set-admin',

                    action='store_true',

                    dest='admin',

                    default=False,

                    help="Give user admin rights"),

        make_option('--set-noadmin',

                    action='store_true',

                    dest='noadmin',

                    default=False,

                    help="Revoke user's admin rights"),

        make_option('--set-active',

                    action='store_true',

                    dest='active',

                    default=False,

                    help="Change user's state to active"),

        make_option('--set-inactive',

                    action='store_true',

                    dest='inactive',

                    default=False,

                    help="Change user's state to inactive"),

        make_option('--add-group',

                    dest='add-group',

                    help="Add user group"),

        make_option('--delete-group',

                    dest='delete-group',

                    help="Delete user group"),

        make_option('--add-permission',

                    dest='add-permission',

                    help="Add user permission"),

        make_option('--delete-permission',

                    dest='delete-permission',

                    help="Delete user permission"),

        make_option('--set-base-quota',

                    dest='set_base_quota',

                    metavar='<resource> <capacity>',

                    nargs=2,

                    help=("Set base quota for a specified resource. "

                          "The special value 'default' sets the user base "

                          "quota to the default value.")

                    ),

    )

    @commit_on_success_strict()

    def handle(self, *args, **options):

        if len(args) != 1:

            raise CommandError("Please provide a user ID")

        if args[0].isdigit():

            try:

                user = AstakosUser.objects.get(id=int(args[0]))

            except AstakosUser.DoesNotExist:

                raise CommandError("Invalid user ID")

        elif is_uuid(args[0]):

            try:

                user = AstakosUser.objects.get(uuid=args[0])

            except AstakosUser.DoesNotExist:

                raise CommandError("Invalid user UUID")

        else:

            raise CommandError(("Invalid user identification: "

                                "you should provide a valid user ID "

                                "or a valid user UUID"))

        if options.get('admin'):

            user.is_superuser = True

        elif options.get('noadmin'):

            user.is_superuser = False

        if options.get('active'):

            activate(user)

        elif options.get('inactive'):

            deactivate(user)

        invitations = options.get('invitations')

        if invitations is not None:

            user.invitations = int(invitations)

        groupname = options.get('add-group')

        if groupname is not None:

            try:

                group = Group.objects.get(name=groupname)

                user.groups.add(group)

            except Group.DoesNotExist, e:

                self.stdout.write(

                    "Group named %s does not exist\n" % groupname)

        groupname = options.get('delete-group')

        if groupname is not None:

            try:

                group = Group.objects.get(name=groupname)

                user.groups.remove(group)

            except Group.DoesNotExist, e:

                self.stdout.write(

                    "Group named %s does not exist\n" % groupname)

        pname = options.get('add-permission')

        if pname is not None:

            try:

                r, created = add_user_permission(user, pname)

                if created:

                    self.stdout.write(

                        'Permission: %s created successfully\n' % pname)

                if r > 0:

                    self.stdout.write(

                        'Permission: %s added successfully\n' % pname)

                elif r == 0:

                    self.stdout.write(

                        'User has already permission: %s\n' % pname)

            except Exception, e:

                raise CommandError(e)

        pname = options.get('delete-permission')

        if pname is not None and not user.has_perm(pname):

            try:

                r = remove_user_permission(user, pname)

                if r < 0:

                    self.stdout.write(

                        'Invalid permission codename: %s\n' % pname)

                elif r == 0:

                    self.stdout.write('User has not permission: %s\n' % pname)

                elif r > 0:

                    self.stdout.write(

                        'Permission: %s removed successfully\n' % pname)

            except Exception, e:

                raise CommandError(e)

        level = options.get('level')

        if level is not None:

            user.level = int(level)

        password = options.get('password')

        if password is not None:

            user.set_password(password)

        password = None

        if options['renew_password']:

            password = AstakosUser.objects.make_random_password()

            user.set_password(password)

        if options['renew_token']:

            user.renew_token()

        try:

            user.save()

        except ValidationError, e:

            raise CommandError(e)

        if password:

            self.stdout.write('User\'s new password: %s\n' % password)

        set_base_quota = options.get('set_base_quota')

        if set_base_quota is not None:

            resource, capacity = set_base_quota

            self.set_limit(user, resource, capacity, False)

    def set_limit(self, user, resource, capacity, force):

        if capacity != 'default':

            try:

                capacity = int(capacity)

            except ValueError:

                m = "Please specify capacity as a decimal integer or 'default'"

                raise CommandError(m)

        try:

            quota, default_capacity = user.get_resource_policy(resource)

        except Resource.DoesNotExist:

            raise CommandError("No such resource: %s" % resource)

        current = quota.capacity if quota is not None else 'default'

        if not force:

            self.stdout.write("user: %s (%s)\n" % (user.uuid, user.username))

            self.stdout.write("default capacity: %s\n" % default_capacity)

            self.stdout.write("current capacity: %s\n" % current)

            self.stdout.write("new capacity: %s\n" % capacity)

            self.stdout.write("Confirm? (y/n) ")

            response = raw_input()

            if string.lower(response) not in ['y', 'yes']:

                self.stdout.write("Aborted.\n")

                return

        if capacity == 'default':

            try:

                quotas.remove_base_quota(user, resource)

            except Exception as e:

                import traceback

                traceback.print_exc()

                raise CommandError("Failed to remove policy: %s" % e)

        else:

            try:

                quotas.add_base_quota(user, resource, capacity)

            except Exception as e:

                raise CommandError("Failed to add policy: %s" % e)