~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006-2010 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for bzr setting permissions.

Files in the branch control directory (.bzr or .bzr/branch) should inherit

the .bzr directory permissions.

So if the directory is group writable, the files and subdirs should be as well.

"""

# TODO: jam 20051215 Currently the default behavior for 'bzr branch' is just

#                    defined by the local umask. This isn't terrible, is it

#                    the truly desired behavior?

import os

import sys

import stat

from StringIO import StringIO

from bzrlib import tests

from bzrlib.branch import Branch

from bzrlib.bzrdir import BzrDir

from bzrlib.lockable_files import LockableFiles

from bzrlib.remote import RemoteBranchFormat

from bzrlib.tests.test_permissions import chmod_r, check_mode_r

from bzrlib.tests.test_sftp_transport import TestCaseWithSFTPServer

from bzrlib.workingtree import WorkingTree

class _NullPermsStat(object):

    """A class that proxy's a stat result and strips permissions."""

    def __init__(self, orig_stat):

        self._orig_stat = orig_stat

        # We strip all permission bits from st_mode

        self.st_mode = orig_stat.st_mode & ~07777

    def __getattr__(self, name):

        return getattr(self._orig_stat, name)

class TestPermissions(tests.TestCaseWithTransport):

    def test_new_branch(self):

        if isinstance(self.branch_format, RemoteBranchFormat):

            # Remote branch format have no permission logic in them; there's

            # nothing to test here.

            raise tests.TestNotApplicable('Remote branches have no'

                                          ' permission logic')

        if sys.platform == 'win32':

            raise tests.TestNotApplicable('chmod has no effect on win32')

        # also, these are BzrBranch format specific things..

        os.mkdir('a')

        mode = stat.S_IMODE(os.stat('a').st_mode)

        t = self.make_branch_and_tree('.')

        b = t.branch

        self.assertEqualMode(mode, b.bzrdir._get_dir_mode())

        self.assertEqualMode(mode & ~07111, b.bzrdir._get_file_mode())

        self.assertEqualMode(mode, b.control_files._dir_mode)

        self.assertEqualMode(mode & ~07111, b.control_files._file_mode)

        os.mkdir('d')

        os.chmod('d', 0700)

        b = self.make_branch('d')

        self.assertEqualMode(0700, b.bzrdir._get_dir_mode())

        self.assertEqualMode(0600, b.bzrdir._get_file_mode())

        self.assertEqualMode(0700, b.control_files._dir_mode)

        self.assertEqualMode(0600, b.control_files._file_mode)

        check_mode_r(self, 'd/.bzr', 00600, 00700)

    def test_new_branch_group_sticky_bit(self):

        if isinstance(self.branch_format, RemoteBranchFormat):

            # Remote branch format have no permission logic in them; there's

            # nothing to test here.

            raise tests.TestNotApplicable('Remote branches have no'

                                          ' permission logic')

        if sys.platform == 'win32':

            raise tests.TestNotApplicable('chmod has no effect on win32')

        elif sys.platform == 'darwin' or 'freebsd' in sys.platform:

            # FreeBSD-based platforms create temp dirs with the 'wheel' group,

            # which users are not likely to be in, and this prevents us

            # from setting the sgid bit

            os.chown(self.test_dir, os.getuid(), os.getgid())

        # also, these are BzrBranch format specific things..

        t = self.make_branch_and_tree('.')

        b = t.branch

        os.mkdir('b')

        os.chmod('b', 02777)

        b = self.make_branch('b')

        self.assertEqualMode(02777, b.bzrdir._get_dir_mode())

        self.assertEqualMode(00666, b.bzrdir._get_file_mode())

        self.assertEqualMode(02777, b.control_files._dir_mode)

        self.assertEqualMode(00666, b.control_files._file_mode)

        check_mode_r(self, 'b/.bzr', 00666, 02777)

        os.mkdir('c')

        os.chmod('c', 02750)

        b = self.make_branch('c')

        self.assertEqualMode(02750, b.bzrdir._get_dir_mode())

        self.assertEqualMode(00640, b.bzrdir._get_file_mode())

        self.assertEqualMode(02750, b.control_files._dir_mode)

        self.assertEqualMode(00640, b.control_files._file_mode)

        check_mode_r(self, 'c/.bzr', 00640, 02750)

    def test_mode_0(self):

        """Test when a transport returns null permissions for .bzr"""

        if isinstance(self.branch_format, RemoteBranchFormat):

            # Remote branch format have no permission logic in them; there's

            # nothing to test here.

            raise tests.TestNotApplicable('Remote branches have no'

                                          ' permission logic')

        self.make_branch_and_tree('.')

        bzrdir = BzrDir.open('.')

        # Monkey patch the transport

        _orig_stat = bzrdir.transport.stat

        def null_perms_stat(*args, **kwargs):

            result = _orig_stat(*args, **kwargs)

            return _NullPermsStat(result)

        bzrdir.transport.stat = null_perms_stat

        self.assertIs(None, bzrdir._get_dir_mode())

        self.assertIs(None, bzrdir._get_file_mode())