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# Copyright 2007 Google Inc.
#
# 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.
"""Unit tests for nss_cache/caches/files.py."""
__author__ = (
"jaq@google.com (Jamie Wilkinson)",
"vasilios@google.com (Vasilios Hoffman)",
)
import os
import shutil
import tempfile
import unittest
from unittest import mock
import sys
from nss_cache import config
from nss_cache.maps import automount
from nss_cache.maps import group
from nss_cache.maps import netgroup
from nss_cache.maps import passwd
from nss_cache.maps import shadow
from nss_cache.caches import files
class TestFilesCache(unittest.TestCase):
def setUp(self):
super(TestFilesCache, self).setUp()
self.workdir = tempfile.mkdtemp()
self.config = {"dir": self.workdir}
def tearDown(self):
super(TestFilesCache, self).tearDown()
shutil.rmtree(self.workdir)
def testInstantiation(self):
cache = files.FilesCache(self.config, config.MAP_PASSWORD)
self.assertNotEqual(None, cache)
def testWrite(self):
cache = files.FilesPasswdMapHandler(self.config)
entry = passwd.PasswdMapEntry({"name": "foo", "uid": 10, "gid": 10})
pmap = passwd.PasswdMap([entry])
written = cache.Write(pmap)
self.assertTrue("foo" in written)
self.assertFalse(entry in pmap) # we emptied pmap to avoid mem leaks
self.assertFalse(cache.temp_cache_file.closed)
def testCacheFilenameSuffixOption(self):
new_config = {"cache_filename_suffix": "blarg"}
new_config.update(self.config)
cache = files.FilesCache(new_config, config.MAP_PASSWORD)
cache.CACHE_FILENAME = "test"
self.assertEqual(
os.path.join(self.workdir, "test.blarg"), cache.GetCacheFilename()
)
cache.temp_cache_file = open(os.path.join(self.workdir, "pre-commit"), "w")
cache.temp_cache_file.write("\n")
cache.temp_cache_filename = os.path.join(self.workdir, "pre-commit")
cache._Commit()
expected_cache_filename = os.path.join(self.workdir, "test.blarg")
self.assertTrue(os.path.exists(expected_cache_filename))
def testWritePasswdEntry(self):
"""We correctly write a typical entry in /etc/passwd format."""
cache = files.FilesPasswdMapHandler(self.config)
file_mock = mock.create_autospec(sys.stdout)
map_entry = passwd.PasswdMapEntry()
map_entry.name = "root"
map_entry.passwd = "x"
map_entry.uid = 0
map_entry.gid = 0
map_entry.gecos = "Rootsy"
map_entry.dir = "/root"
map_entry.shell = "/bin/bash"
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(b"root:x:0:0:Rootsy:/root:/bin/bash\n")
def testWriteGroupEntry(self):
"""We correctly write a typical entry in /etc/group format."""
cache = files.FilesGroupMapHandler(self.config)
file_mock = mock.create_autospec(sys.stdout)
map_entry = group.GroupMapEntry()
map_entry.name = "root"
map_entry.passwd = "x"
map_entry.gid = 0
map_entry.members = ["zero_cool", "acid_burn"]
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(b"root:x:0:zero_cool,acid_burn\n")
def testWriteShadowEntry(self):
"""We correctly write a typical entry in /etc/shadow format."""
cache = files.FilesShadowMapHandler(self.config)
file_mock = mock.create_autospec(sys.stdout)
map_entry = shadow.ShadowMapEntry()
map_entry.name = "root"
map_entry.passwd = "$1$zomgmd5support"
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(b"root:$1$zomgmd5support:::::::\n")
def testWriteNetgroupEntry(self):
"""We correctly write a typical entry in /etc/netgroup format."""
cache = files.FilesNetgroupMapHandler(self.config)
file_mock = mock.create_autospec(sys.stdout)
map_entry = netgroup.NetgroupMapEntry()
map_entry.name = "administrators"
map_entry.entries = "unix_admins noc_monkeys (-,zero_cool,)"
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(
b"administrators unix_admins noc_monkeys (-,zero_cool,)\n"
)
def testWriteAutomountEntry(self):
"""We correctly write a typical entry in /etc/auto.* format."""
cache = files.FilesAutomountMapHandler(self.config)
file_mock = mock.create_autospec(sys.stdout)
map_entry = automount.AutomountMapEntry()
map_entry.key = "scratch"
map_entry.options = "-tcp,rw,intr,bg"
map_entry.location = "fileserver:/scratch"
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(
b"scratch -tcp,rw,intr,bg fileserver:/scratch\n"
)
file_mock = mock.create_autospec(sys.stdout)
map_entry = automount.AutomountMapEntry()
map_entry.key = "scratch"
map_entry.options = None
map_entry.location = "fileserver:/scratch"
cache._WriteData(file_mock, map_entry)
file_mock.write.assert_called_with(b"scratch fileserver:/scratch\n")
def testAutomountSetsFilename(self):
"""We set the correct filename based on mountpoint information."""
# also tests GetMapLocation() because it uses it :)
conf = {"dir": self.workdir, "cache_filename_suffix": ""}
cache = files.FilesAutomountMapHandler(conf)
self.assertEqual(cache.GetMapLocation(), "%s/auto.master" % self.workdir)
cache = files.FilesAutomountMapHandler(conf, automount_mountpoint="/home")
self.assertEqual(cache.GetMapLocation(), "%s/auto.home" % self.workdir)
cache = files.FilesAutomountMapHandler(conf, automount_mountpoint="/usr/meh")
self.assertEqual(cache.GetMapLocation(), "%s/auto.usr_meh" % self.workdir)
def testCacheFileDoesNotExist(self):
"""Make sure we just get an empty map rather than exception."""
conf = {"dir": self.workdir, "cache_filename_suffix": ""}
cache = files.FilesAutomountMapHandler(conf)
self.assertFalse(os.path.exists(os.path.join(self.workdir, "auto.master")))
data = cache.GetMap()
self.assertFalse(data)
def testIndexCreation(self):
cache = files.FilesPasswdMapHandler(self.config)
entries = [
passwd.PasswdMapEntry(dict(name="foo", uid=10, gid=10)),
passwd.PasswdMapEntry(dict(name="bar", uid=11, gid=11)),
passwd.PasswdMapEntry(dict(name="quux", uid=12, gid=11)),
]
pmap = passwd.PasswdMap(entries)
cache.Write(pmap)
cache.WriteIndex()
index_filename = cache.GetCacheFilename() + ".ixname"
self.assertTrue(
os.path.exists(index_filename), "Index not created %s" % index_filename
)
with open(index_filename) as f:
self.assertEqual("bar\x0015\x00\x00\n", f.readline())
self.assertEqual("foo\x000\x00\x00\x00\n", f.readline())
self.assertEqual("quux\x0030\x00\n", f.readline())
index_filename = cache.GetCacheFilename() + ".ixuid"
self.assertTrue(
os.path.exists(index_filename), "Index not created %s" % index_filename
)
with open(index_filename) as f:
self.assertEqual("10\x000\x00\x00\n", f.readline())
self.assertEqual("11\x0015\x00\n", f.readline())
self.assertEqual("12\x0030\x00\n", f.readline())
def testWriteCacheAndIndex(self):
cache = files.FilesPasswdMapHandler(self.config)
entries = [
passwd.PasswdMapEntry(dict(name="foo", uid=10, gid=10)),
passwd.PasswdMapEntry(dict(name="bar", uid=11, gid=11)),
]
pmap = passwd.PasswdMap(entries)
written = cache.Write(pmap)
cache.WriteIndex()
self.assertTrue("foo" in written)
self.assertTrue("bar" in written)
index_filename = cache.GetCacheFilename() + ".ixname"
self.assertTrue(
os.path.exists(index_filename), "Index not created %s" % index_filename
)
index_filename = cache.GetCacheFilename() + ".ixuid"
self.assertTrue(
os.path.exists(index_filename), "Index not created %s" % index_filename
)
entries = [
passwd.PasswdMapEntry(dict(name="foo", uid=10, gid=10)),
passwd.PasswdMapEntry(dict(name="bar", uid=11, gid=11)),
passwd.PasswdMapEntry(dict(name="quux", uid=12, gid=11)),
]
pmap = passwd.PasswdMap(entries)
written = cache.Write(pmap)
self.assertTrue("foo" in written)
self.assertTrue("bar" in written)
self.assertTrue("quux" in written)
index_filename = cache.GetCacheFilename() + ".ixname"
with open(index_filename) as f:
self.assertEqual("bar\x0015\x00\n", f.readline())
self.assertEqual("foo\x000\x00\x00\n", f.readline())
index_filename = cache.GetCacheFilename() + ".ixuid"
with open(index_filename) as f:
self.assertEqual("10\x000\x00\x00\n", f.readline())
self.assertEqual("11\x0015\x00\n", f.readline())
cache.WriteIndex()
index_filename = cache.GetCacheFilename() + ".ixname"
with open(index_filename) as f:
self.assertEqual("bar\x0015\x00\x00\n", f.readline())
self.assertEqual("foo\x000\x00\x00\x00\n", f.readline())
self.assertEqual("quux\x0030\x00\n", f.readline())
index_filename = cache.GetCacheFilename() + ".ixuid"
with open(index_filename) as f:
self.assertEqual("10\x000\x00\x00\n", f.readline())
self.assertEqual("11\x0015\x00\n", f.readline())
self.assertEqual("12\x0030\x00\n", f.readline())
if __name__ == "__main__":
unittest.main()
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