root / test / py / ganeti.backend_unittest.py @ aa922d64
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#!/usr/bin/python
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#
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# Copyright (C) 2010, 2013 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for testing ganeti.backend"""
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import os |
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import sys |
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import shutil |
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import tempfile |
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import unittest |
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from ganeti import utils |
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from ganeti import constants |
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from ganeti import backend |
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from ganeti import netutils |
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from ganeti import errors |
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from ganeti import serializer |
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import testutils |
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import mocks |
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class TestX509Certificates(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def test(self): |
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(name, cert_pem) = backend.CreateX509Certificate(300, cryptodir=self.tmpdir) |
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self.assertEqual(utils.ReadFile(os.path.join(self.tmpdir, name, |
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backend._X509_CERT_FILE)), |
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cert_pem) |
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self.assert_(0 < os.path.getsize(os.path.join(self.tmpdir, name, |
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backend._X509_KEY_FILE))) |
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(name2, cert_pem2) = \ |
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backend.CreateX509Certificate(300, cryptodir=self.tmpdir) |
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backend.RemoveX509Certificate(name, cryptodir=self.tmpdir)
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backend.RemoveX509Certificate(name2, cryptodir=self.tmpdir)
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self.assertEqual(utils.ListVisibleFiles(self.tmpdir), []) |
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def testNonEmpty(self): |
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(name, _) = backend.CreateX509Certificate(300, cryptodir=self.tmpdir) |
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utils.WriteFile(utils.PathJoin(self.tmpdir, name, "hello-world"), |
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data="Hello World")
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self.assertRaises(backend.RPCFail, backend.RemoveX509Certificate,
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name, cryptodir=self.tmpdir)
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self.assertEqual(utils.ListVisibleFiles(self.tmpdir), [name]) |
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class TestNodeVerify(testutils.GanetiTestCase): |
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def testMasterIPLocalhost(self): |
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# this a real functional test, but requires localhost to be reachable
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local_data = (netutils.Hostname.GetSysName(), |
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constants.IP4_ADDRESS_LOCALHOST) |
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result = backend.VerifyNode({constants.NV_MASTERIP: local_data}, None)
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self.failUnless(constants.NV_MASTERIP in result, |
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"Master IP data not returned")
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self.failUnless(result[constants.NV_MASTERIP], "Cannot reach localhost") |
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def testMasterIPUnreachable(self): |
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# Network 192.0.2.0/24 is reserved for test/documentation as per
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# RFC 5737
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bad_data = ("master.example.com", "192.0.2.1") |
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# we just test that whatever TcpPing returns, VerifyNode returns too
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netutils.TcpPing = lambda a, b, source=None: False |
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result = backend.VerifyNode({constants.NV_MASTERIP: bad_data}, None)
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self.failUnless(constants.NV_MASTERIP in result, |
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"Master IP data not returned")
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self.failIf(result[constants.NV_MASTERIP],
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"Result from netutils.TcpPing corrupted")
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def _DefRestrictedCmdOwner(): |
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return (os.getuid(), os.getgid())
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class TestVerifyRestrictedCmdName(unittest.TestCase): |
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def testAcceptableName(self): |
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for i in ["foo", "bar", "z1", "000first", "hello-world"]: |
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for fn in [lambda s: s, lambda s: s.upper(), lambda s: s.title()]: |
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(status, msg) = backend._VerifyRestrictedCmdName(fn(i)) |
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self.assertTrue(status)
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self.assertTrue(msg is None) |
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def testEmptyAndSpace(self): |
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for i in ["", " ", "\t", "\n"]: |
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(status, msg) = backend._VerifyRestrictedCmdName(i) |
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self.assertFalse(status)
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self.assertEqual(msg, "Missing command name") |
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def testNameWithSlashes(self): |
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for i in ["/", "./foo", "../moo", "some/name"]: |
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(status, msg) = backend._VerifyRestrictedCmdName(i) |
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self.assertFalse(status)
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self.assertEqual(msg, "Invalid command name") |
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def testForbiddenCharacters(self): |
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for i in ["#", ".", "..", "bash -c ls", "'"]: |
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(status, msg) = backend._VerifyRestrictedCmdName(i) |
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self.assertFalse(status)
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self.assertEqual(msg, "Command name contains forbidden characters") |
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class TestVerifyRestrictedCmdDirectory(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testCanNotStat(self): |
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tmpname = utils.PathJoin(self.tmpdir, "foobar") |
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self.assertFalse(os.path.exists(tmpname))
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(status, msg) = \ |
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backend._VerifyRestrictedCmdDirectory(tmpname, _owner=NotImplemented)
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self.assertFalse(status)
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self.assertTrue(msg.startswith("Can't stat(2) '")) |
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def testTooPermissive(self): |
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tmpname = utils.PathJoin(self.tmpdir, "foobar") |
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os.mkdir(tmpname) |
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for mode in [0777, 0706, 0760, 0722]: |
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os.chmod(tmpname, mode) |
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self.assertTrue(os.path.isdir(tmpname))
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(status, msg) = \ |
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backend._VerifyRestrictedCmdDirectory(tmpname, _owner=NotImplemented)
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self.assertFalse(status)
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self.assertTrue(msg.startswith("Permissions on '")) |
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def testNoDirectory(self): |
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tmpname = utils.PathJoin(self.tmpdir, "foobar") |
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utils.WriteFile(tmpname, data="empty\n")
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self.assertTrue(os.path.isfile(tmpname))
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(status, msg) = \ |
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backend._VerifyRestrictedCmdDirectory(tmpname, |
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_owner=_DefRestrictedCmdOwner()) |
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self.assertFalse(status)
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self.assertTrue(msg.endswith("is not a directory")) |
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def testNormal(self): |
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tmpname = utils.PathJoin(self.tmpdir, "foobar") |
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os.mkdir(tmpname) |
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self.assertTrue(os.path.isdir(tmpname))
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(status, msg) = \ |
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backend._VerifyRestrictedCmdDirectory(tmpname, |
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_owner=_DefRestrictedCmdOwner()) |
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self.assertTrue(status)
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self.assertTrue(msg is None) |
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class TestVerifyRestrictedCmd(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testCanNotStat(self): |
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tmpname = utils.PathJoin(self.tmpdir, "helloworld") |
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self.assertFalse(os.path.exists(tmpname))
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(status, msg) = \ |
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backend._VerifyRestrictedCmd(self.tmpdir, "helloworld", |
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_owner=NotImplemented)
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self.assertFalse(status)
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self.assertTrue(msg.startswith("Can't stat(2) '")) |
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def testNotExecutable(self): |
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tmpname = utils.PathJoin(self.tmpdir, "cmdname") |
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utils.WriteFile(tmpname, data="empty\n")
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(status, msg) = \ |
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backend._VerifyRestrictedCmd(self.tmpdir, "cmdname", |
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_owner=_DefRestrictedCmdOwner()) |
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self.assertFalse(status)
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self.assertTrue(msg.startswith("access(2) thinks '")) |
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def testExecutable(self): |
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tmpname = utils.PathJoin(self.tmpdir, "cmdname") |
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utils.WriteFile(tmpname, data="empty\n", mode=0700) |
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(status, executable) = \ |
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backend._VerifyRestrictedCmd(self.tmpdir, "cmdname", |
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_owner=_DefRestrictedCmdOwner()) |
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self.assertTrue(status)
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self.assertEqual(executable, tmpname)
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class TestPrepareRestrictedCmd(unittest.TestCase): |
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_TEST_PATH = "/tmp/some/test/path"
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def testDirFails(self): |
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def fn(path): |
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self.assertEqual(path, self._TEST_PATH) |
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return (False, "test error 31420") |
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(status, msg) = \ |
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backend._PrepareRestrictedCmd(self._TEST_PATH, "cmd21152", |
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_verify_dir=fn, |
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_verify_name=NotImplemented,
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_verify_cmd=NotImplemented)
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self.assertFalse(status)
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self.assertEqual(msg, "test error 31420") |
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def testNameFails(self): |
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def fn(cmd): |
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self.assertEqual(cmd, "cmd4617") |
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return (False, "test error 591") |
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(status, msg) = \ |
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backend._PrepareRestrictedCmd(self._TEST_PATH, "cmd4617", |
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_verify_dir=lambda _: (True, None), |
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_verify_name=fn, |
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_verify_cmd=NotImplemented)
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self.assertFalse(status)
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self.assertEqual(msg, "test error 591") |
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def testCommandFails(self): |
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def fn(path, cmd): |
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self.assertEqual(path, self._TEST_PATH) |
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self.assertEqual(cmd, "cmd17577") |
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return (False, "test error 25524") |
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(status, msg) = \ |
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backend._PrepareRestrictedCmd(self._TEST_PATH, "cmd17577", |
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_verify_dir=lambda _: (True, None), |
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_verify_name=lambda _: (True, None), |
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_verify_cmd=fn) |
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self.assertFalse(status)
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self.assertEqual(msg, "test error 25524") |
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def testSuccess(self): |
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def fn(path, cmd): |
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return (True, utils.PathJoin(path, cmd)) |
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(status, executable) = \ |
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backend._PrepareRestrictedCmd(self._TEST_PATH, "cmd22633", |
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_verify_dir=lambda _: (True, None), |
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_verify_name=lambda _: (True, None), |
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_verify_cmd=fn) |
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self.assertTrue(status)
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self.assertEqual(executable, utils.PathJoin(self._TEST_PATH, "cmd22633")) |
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def _SleepForRestrictedCmd(duration): |
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assert duration > 5 |
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def _GenericRestrictedCmdError(cmd): |
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return "Executing command '%s' failed" % cmd |
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class TestRunRestrictedCmd(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testNonExistantLockDirectory(self): |
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lockfile = utils.PathJoin(self.tmpdir, "does", "not", "exist") |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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self.assertFalse(os.path.exists(lockfile))
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self.assertRaises(backend.RPCFail,
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backend.RunRestrictedCmd, "test",
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_lock_timeout=NotImplemented,
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_lock_file=lockfile, |
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_path=NotImplemented,
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_sleep_fn=sleep_fn, |
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_prepare_fn=NotImplemented,
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_runcmd_fn=NotImplemented,
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_enabled=True)
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self.assertEqual(sleep_fn.Count(), 1) |
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@staticmethod
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def _TryLock(lockfile): |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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result = False
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try:
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backend.RunRestrictedCmd("test22717",
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_lock_timeout=0.1,
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_lock_file=lockfile, |
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_path=NotImplemented,
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_sleep_fn=sleep_fn, |
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_prepare_fn=NotImplemented,
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_runcmd_fn=NotImplemented,
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_enabled=True)
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except backend.RPCFail, err:
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assert str(err) == _GenericRestrictedCmdError("test22717"), \ |
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"Did not fail with generic error message"
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result = True
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assert sleep_fn.Count() == 1 |
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return result
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def testLockHeldByOtherProcess(self): |
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lockfile = utils.PathJoin(self.tmpdir, "lock") |
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lock = utils.FileLock.Open(lockfile) |
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lock.Exclusive(blocking=True, timeout=1.0) |
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try:
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self.assertTrue(utils.RunInSeparateProcess(self._TryLock, lockfile)) |
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finally:
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lock.Close() |
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@staticmethod
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def _PrepareRaisingException(path, cmd): |
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assert cmd == "test23122" |
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raise Exception("test") |
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def testPrepareRaisesException(self): |
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lockfile = utils.PathJoin(self.tmpdir, "lock") |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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prepare_fn = testutils.CallCounter(self._PrepareRaisingException)
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try:
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backend.RunRestrictedCmd("test23122",
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_lock_timeout=1.0, _lock_file=lockfile,
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_path=NotImplemented, _runcmd_fn=NotImplemented, |
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_sleep_fn=sleep_fn, _prepare_fn=prepare_fn, |
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_enabled=True)
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except backend.RPCFail, err:
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self.assertEqual(str(err), _GenericRestrictedCmdError("test23122")) |
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else:
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self.fail("Didn't fail") |
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self.assertEqual(sleep_fn.Count(), 1) |
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self.assertEqual(prepare_fn.Count(), 1) |
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@staticmethod
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def _PrepareFails(path, cmd): |
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assert cmd == "test29327" |
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return ("some error message", None) |
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def testPrepareFails(self): |
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lockfile = utils.PathJoin(self.tmpdir, "lock") |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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prepare_fn = testutils.CallCounter(self._PrepareFails)
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try:
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backend.RunRestrictedCmd("test29327",
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_lock_timeout=1.0, _lock_file=lockfile,
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_path=NotImplemented, _runcmd_fn=NotImplemented, |
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_sleep_fn=sleep_fn, _prepare_fn=prepare_fn, |
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_enabled=True)
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except backend.RPCFail, err:
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self.assertEqual(str(err), _GenericRestrictedCmdError("test29327")) |
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else:
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self.fail("Didn't fail") |
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self.assertEqual(sleep_fn.Count(), 1) |
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self.assertEqual(prepare_fn.Count(), 1) |
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@staticmethod
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def _SuccessfulPrepare(path, cmd): |
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return (True, utils.PathJoin(path, cmd)) |
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def testRunCmdFails(self): |
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lockfile = utils.PathJoin(self.tmpdir, "lock") |
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def fn(args, env=NotImplemented, reset_env=NotImplemented, |
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postfork_fn=NotImplemented):
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self.assertEqual(args, [utils.PathJoin(self.tmpdir, "test3079")]) |
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self.assertEqual(env, {})
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self.assertTrue(reset_env)
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self.assertTrue(callable(postfork_fn)) |
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trylock = utils.FileLock.Open(lockfile) |
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try:
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# See if lockfile is still held
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self.assertRaises(EnvironmentError, trylock.Exclusive, blocking=False) |
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# Call back to release lock
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postfork_fn(NotImplemented)
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# See if lockfile can be acquired
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trylock.Exclusive(blocking=False)
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finally:
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trylock.Close() |
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# Simulate a failed command
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return utils.RunResult(constants.EXIT_FAILURE, None, |
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"stdout", "stderr406328567", |
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utils.ShellQuoteArgs(args), |
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NotImplemented, NotImplemented) |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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prepare_fn = testutils.CallCounter(self._SuccessfulPrepare)
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runcmd_fn = testutils.CallCounter(fn) |
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try:
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backend.RunRestrictedCmd("test3079",
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_lock_timeout=1.0, _lock_file=lockfile,
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_path=self.tmpdir, _runcmd_fn=runcmd_fn,
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_sleep_fn=sleep_fn, _prepare_fn=prepare_fn, |
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_enabled=True)
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except backend.RPCFail, err:
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self.assertTrue(str(err).startswith("Restricted command 'test3079'" |
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" failed:"))
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self.assertTrue("stderr406328567" in str(err), |
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msg="Error did not include output")
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else:
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self.fail("Didn't fail") |
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self.assertEqual(sleep_fn.Count(), 0) |
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self.assertEqual(prepare_fn.Count(), 1) |
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self.assertEqual(runcmd_fn.Count(), 1) |
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def testRunCmdSucceeds(self): |
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lockfile = utils.PathJoin(self.tmpdir, "lock") |
440 |
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def fn(args, env=NotImplemented, reset_env=NotImplemented, |
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postfork_fn=NotImplemented):
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self.assertEqual(args, [utils.PathJoin(self.tmpdir, "test5667")]) |
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self.assertEqual(env, {})
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self.assertTrue(reset_env)
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# Call back to release lock
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postfork_fn(NotImplemented)
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# Simulate a successful command
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return utils.RunResult(constants.EXIT_SUCCESS, None, "stdout14463", "", |
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utils.ShellQuoteArgs(args), |
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NotImplemented, NotImplemented) |
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sleep_fn = testutils.CallCounter(_SleepForRestrictedCmd) |
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prepare_fn = testutils.CallCounter(self._SuccessfulPrepare)
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runcmd_fn = testutils.CallCounter(fn) |
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result = backend.RunRestrictedCmd("test5667",
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_lock_timeout=1.0, _lock_file=lockfile,
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_path=self.tmpdir, _runcmd_fn=runcmd_fn,
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_sleep_fn=sleep_fn, |
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_prepare_fn=prepare_fn, |
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_enabled=True)
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self.assertEqual(result, "stdout14463") |
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self.assertEqual(sleep_fn.Count(), 0) |
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self.assertEqual(prepare_fn.Count(), 1) |
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self.assertEqual(runcmd_fn.Count(), 1) |
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|
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def testCommandsDisabled(self): |
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try:
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backend.RunRestrictedCmd("test",
|
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_lock_timeout=NotImplemented,
|
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_lock_file=NotImplemented,
|
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_path=NotImplemented,
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_sleep_fn=NotImplemented,
|
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_prepare_fn=NotImplemented,
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_runcmd_fn=NotImplemented,
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_enabled=False)
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except backend.RPCFail, err:
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self.assertEqual(str(err), |
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"Restricted commands disabled at configure time")
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else:
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self.fail("Did not raise exception") |
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|
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class TestSetWatcherPause(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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self.filename = utils.PathJoin(self.tmpdir, "pause") |
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|
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
|
495 |
|
496 |
def testUnsetNonExisting(self): |
497 |
self.assertFalse(os.path.exists(self.filename)) |
498 |
backend.SetWatcherPause(None, _filename=self.filename) |
499 |
self.assertFalse(os.path.exists(self.filename)) |
500 |
|
501 |
def testSetNonNumeric(self): |
502 |
for i in ["", [], {}, "Hello World", "0", "1.0"]: |
503 |
self.assertFalse(os.path.exists(self.filename)) |
504 |
|
505 |
try:
|
506 |
backend.SetWatcherPause(i, _filename=self.filename)
|
507 |
except backend.RPCFail, err:
|
508 |
self.assertEqual(str(err), "Duration must be numeric") |
509 |
else:
|
510 |
self.fail("Did not raise exception") |
511 |
|
512 |
self.assertFalse(os.path.exists(self.filename)) |
513 |
|
514 |
def testSet(self): |
515 |
self.assertFalse(os.path.exists(self.filename)) |
516 |
|
517 |
for i in range(10): |
518 |
backend.SetWatcherPause(i, _filename=self.filename)
|
519 |
self.assertEqual(utils.ReadFile(self.filename), "%s\n" % i) |
520 |
self.assertEqual(os.stat(self.filename).st_mode & 0777, 0644) |
521 |
|
522 |
|
523 |
class TestGetBlockDevSymlinkPath(unittest.TestCase): |
524 |
def setUp(self): |
525 |
self.tmpdir = tempfile.mkdtemp()
|
526 |
|
527 |
def tearDown(self): |
528 |
shutil.rmtree(self.tmpdir)
|
529 |
|
530 |
def _Test(self, name, idx): |
531 |
self.assertEqual(backend._GetBlockDevSymlinkPath(name, idx,
|
532 |
_dir=self.tmpdir),
|
533 |
("%s/%s%s%s" % (self.tmpdir, name, |
534 |
constants.DISK_SEPARATOR, idx))) |
535 |
|
536 |
def test(self): |
537 |
for idx in range(100): |
538 |
self._Test("inst1.example.com", idx) |
539 |
|
540 |
|
541 |
if __name__ == "__main__": |
542 |
testutils.GanetiTestProgram() |