# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
#    Copyright (C) 2012 Red Hat, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import sys

from nova import test

from nova.tests import fakeguestfs
from nova.virt.disk import api as diskapi
from nova.virt.disk.vfs import api as vfsapi
from nova.virt.disk.vfs import guestfs as vfsguestfs


class VirtDiskTest(test.TestCase):

    def setUp(self):
        super(VirtDiskTest, self).setUp()
        sys.modules['guestfs'] = fakeguestfs
        vfsguestfs.guestfs = fakeguestfs

    def test_inject_data_key(self):

        vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
        vfs.setup()

        diskapi._inject_key_into_fs("mysshkey", vfs)

        self.assertTrue("/root/.ssh" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/root/.ssh"],
                          {'isdir': True, 'gid': 0, 'uid': 0, 'mode': 0700})
        self.assertTrue("/root/.ssh/authorized_keys" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/root/.ssh/authorized_keys"],
                          {'isdir': False,
                           'content': "Hello World\n# The following ssh " +
                                      "key was injected by Nova\nmysshkey\n",
                           'gid': 100,
                           'uid': 100,
                           'mode': 0700})

        vfs.teardown()

    def test_inject_data_key_with_selinux(self):

        vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
        vfs.setup()

        vfs.make_path("etc/selinux")
        vfs.make_path("etc/rc.d")
        diskapi._inject_key_into_fs("mysshkey", vfs)

        self.assertTrue("/etc/rc.d/rc.local" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/etc/rc.d/rc.local"],
                          {'isdir': False,
                           'content': "Hello World#!/bin/sh\n# Added by " +
                                      "Nova to ensure injected ssh keys " +
                                      "have the right context\nrestorecon " +
                                      "-RF root/.ssh 2>/dev/null || :\n",
                           'gid': 100,
                           'uid': 100,
                           'mode': 0700})

        self.assertTrue("/root/.ssh" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/root/.ssh"],
                          {'isdir': True, 'gid': 0, 'uid': 0, 'mode': 0700})
        self.assertTrue("/root/.ssh/authorized_keys" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/root/.ssh/authorized_keys"],
                          {'isdir': False,
                           'content': "Hello World\n# The following ssh " +
                                      "key was injected by Nova\nmysshkey\n",
                           'gid': 100,
                           'uid': 100,
                           'mode': 0700})

        vfs.teardown()

    def test_inject_net(self):

        vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
        vfs.setup()

        diskapi._inject_net_into_fs("mynetconfig", vfs)

        self.assertTrue("/etc/network/interfaces" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/etc/network/interfaces"],
                          {'content': 'mynetconfig',
                           'gid': 100,
                           'isdir': False,
                           'mode': 0700,
                           'uid': 100})
        vfs.teardown()

    def test_inject_metadata(self):
        vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
        vfs.setup()

        diskapi._inject_metadata_into_fs([{"key": "foo",
                                           "value": "bar"},
                                          {"key": "eek",
                                           "value": "wizz"}], vfs)

        self.assertTrue("/meta.js" in vfs.handle.files)
        self.assertEquals(vfs.handle.files["/meta.js"],
                          {'content': '{"foo": "bar", ' +
                                      '"eek": "wizz"}',
                           'gid': 100,
                           'isdir': False,
                           'mode': 0700,
                           'uid': 100})
        vfs.teardown()

    def test_inject_admin_password(self):
        vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
        vfs.setup()

        def fake_salt():
            return "1234567890abcdef"

        self.stubs.Set(diskapi, '_generate_salt', fake_salt)

        vfs.handle.write("/etc/shadow",
                         "root:$1$12345678$xxxxx:14917:0:99999:7:::\n" +
                         "bin:*:14495:0:99999:7:::\n" +
                         "daemon:*:14495:0:99999:7:::\n")

        vfs.handle.write("/etc/passwd",
                         "root:x:0:0:root:/root:/bin/bash\n" +
                         "bin:x:1:1:bin:/bin:/sbin/nologin\n" +
                         "daemon:x:2:2:daemon:/sbin:/sbin/nologin\n")

        diskapi._inject_admin_password_into_fs("123456", vfs)

        self.assertEquals(vfs.handle.files["/etc/passwd"],
                          {'content': "root:x:0:0:root:/root:/bin/bash\n" +
                                      "bin:x:1:1:bin:/bin:/sbin/nologin\n" +
                                      "daemon:x:2:2:daemon:/sbin:" +
                                      "/sbin/nologin\n",
                           'gid': 100,
                           'isdir': False,
                           'mode': 0700,
                           'uid': 100})
        self.assertEquals(vfs.handle.files["/etc/shadow"],
                          {'content': "root:$1$12345678$a4ge4d5iJ5vw" +
                                      "vbFS88TEN0:14917:0:99999:7:::\n" +
                                      "bin:*:14495:0:99999:7:::\n" +
                                      "daemon:*:14495:0:99999:7:::\n",
                           'gid': 100,
                           'isdir': False,
                           'mode': 0700,
                           'uid': 100})
        vfs.teardown()
