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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 02110-1301 USA
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Tests of the bzr serve command."""
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revision as _mod_revision,
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from bzrlib import errors
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from bzrlib.branch import Branch
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from bzrlib.controldir import ControlDir
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from bzrlib.smart import client, medium
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from bzrlib.smart.server import (
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from bzrlib.tests import (
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TestCaseWithMemoryTransport,
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TestCaseWithTransport,
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from bzrlib.transport import remote
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class TestBzrServeBase(TestCaseWithTransport):
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def run_bzr_serve_then_func(self, serve_args, retcode=0, func=None,
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*func_args, **func_kwargs):
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"""Run 'bzr serve', and run the given func in a thread once the server
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When 'func' terminates, the server will be terminated too.
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Returns stdout and stderr.
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def on_server_start_thread(tcp_server):
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"""This runs concurrently with the server thread.
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The server is interrupted as soon as ``func`` finishes, even if an
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exception is encountered.
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self.tcp_server = tcp_server
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func(*func_args, **func_kwargs)
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# Log errors to make some test failures a little less
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trace.mutter('func broke: %r', e)
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# Then stop the server
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trace.mutter('interrupting...')
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thread.interrupt_main()
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# When the hook is fired, it just starts ``on_server_start_thread`` and
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def on_server_start(backing_urls, tcp_server):
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target=on_server_start_thread, args=(tcp_server,))
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SmartTCPServer.hooks.install_named_hook(
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'server_started_ex', on_server_start,
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'run_bzr_serve_then_func hook')
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# It seesm thread.interrupt_main() will not raise KeyboardInterrupt
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# until after socket.accept returns. So we set the timeout low to make
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self.overrideAttr(SmartTCPServer, '_ACCEPT_TIMEOUT', 0.1)
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out, err = self.run_bzr(['serve'] + list(serve_args),
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except KeyboardInterrupt, e:
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class TestBzrServe(TestBzrServeBase):
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super(TestBzrServe, self).setUp()
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self.disable_missing_extensions_warning()
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def test_server_exception_with_hook(self):
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"""Catch exception from the server in the server_exception hook.
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We use ``run_bzr_serve_then_func`` without a ``func`` so the server
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will receive a KeyboardInterrupt exception we want to catch.
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if exception[0] is KeyboardInterrupt:
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sys.stderr.write('catching KeyboardInterrupt\n')
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SmartTCPServer.hooks.install_named_hook(
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'server_exception', hook,
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'test_server_except_hook hook')
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args = ['--listen', 'localhost', '--port', '0', '--quiet']
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out, err = self.run_bzr_serve_then_func(args, retcode=0)
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self.assertEqual('catching KeyboardInterrupt\n', err)
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def test_server_exception_no_hook(self):
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"""test exception without hook returns error"""
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out, err = self.run_bzr_serve_then_func(args, retcode=3)
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from bzrlib.bzrdir import BzrDir
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from bzrlib.errors import ParamikoNotPresent
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from bzrlib.tests import TestCaseWithTransport, TestSkipped
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from bzrlib.transport import get_transport, smart
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class TestBzrServe(TestCaseWithTransport):
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def assertInetServerShutsdownCleanly(self, process):
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"""Shutdown the server process looking for errors."""
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# Connect to the server
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branch = Branch.open(url)
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self.make_read_requests(branch)
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# We get a working branch
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branch.repository.get_revision_graph()
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self.assertEqual(None, branch.last_revision())
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self.assertServerFinishesCleanly(process)
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def test_bzr_serve_supports_protocol(self):
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def test_bzr_serve_no_args(self):
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"""'bzr serve' with no arguments or options should not traceback."""
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out, err = self.run_bzr_error(
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['bzr serve requires one of --inet or --port'], 'serve')
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def test_bzr_connect_to_bzr_ssh(self):
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"""User acceptance that get_transport of a bzr+ssh:// behaves correctly.
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bzr+ssh:// should cause bzr to run a remote bzr smart server over SSH.
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from bzrlib.transport.sftp import SFTPServer
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except ParamikoNotPresent:
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raise TestSkipped('Paramiko not installed')
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from bzrlib.tests.stub_sftp import StubServer
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self.make_branch('.')
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process, url = self.start_server_port(['--allow-writes',
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# Connect to the server
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branch = Branch.open(url)
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self.make_read_requests(branch)
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self.assertServerFinishesCleanly(process)
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def test_bzr_serve_dhpss(self):
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# This is a smoke test that the server doesn't crash when run with
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# -Dhpss, and does drop some hpss logging to the file.
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self.make_branch('.')
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log_fname = os.getcwd() + '/server.log'
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self.overrideEnv('BZR_LOG', log_fname)
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process, transport = self.start_server_inet(['-Dhpss'])
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branch = ControlDir.open_from_transport(transport).open_branch()
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self.make_read_requests(branch)
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self.assertInetServerShutsdownCleanly(process)
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f = open(log_fname, 'rb')
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self.assertContainsRe(content, r'hpss request: \[[0-9-]+\]')
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def test_bzr_serve_supports_configurable_timeout(self):
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gs = config.GlobalStack()
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gs.set('serve.client_timeout', 0.2)
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# Save the config as the subprocess will use it
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process, url = self.start_server_port()
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self.build_tree_contents([('a_file', 'contents\n')])
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# We can connect and issue a request
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t = transport.get_transport_from_url(url)
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self.assertEqual('contents\n', t.get_bytes('a_file'))
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# However, if we just wait for more content from the server, it will
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# eventually disconnect us.
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m = t.get_smart_medium()
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# Now, we wait for timeout to trigger
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err = process.stderr.readline()
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'Connection Timeout: disconnecting client after 0.2 seconds\n',
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self.assertServerFinishesCleanly(process)
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def test_bzr_serve_supports_client_timeout(self):
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process, url = self.start_server_port(['--client-timeout=0.1'])
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self.build_tree_contents([('a_file', 'contents\n')])
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# We can connect and issue a request
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t = transport.get_transport_from_url(url)
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self.assertEqual('contents\n', t.get_bytes('a_file'))
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# However, if we just wait for more content from the server, it will
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# eventually disconnect us.
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# TODO: Use something like signal.alarm() so that if the server doesn't
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# properly handle the timeout, we end up failing the test instead
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# of hanging forever.
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m = t.get_smart_medium()
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# Now, we wait for timeout to trigger
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err = process.stderr.readline()
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'Connection Timeout: disconnecting client after 0.1 seconds\n',
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self.assertServerFinishesCleanly(process)
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def test_bzr_serve_graceful_shutdown(self):
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big_contents = 'a'*64*1024
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self.build_tree_contents([('bigfile', big_contents)])
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process, url = self.start_server_port(['--client-timeout=1.0'])
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t = transport.get_transport_from_url(url)
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m = t.get_smart_medium()
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c = client._SmartClient(m)
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# Start, but don't finish a response
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resp, response_handler = c.call_expecting_body('get', 'bigfile')
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self.assertEqual(('ok',), resp)
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# Note: process.send_signal is a Python 2.6ism
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process.send_signal(signal.SIGHUP)
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# Wait for the server to notice the signal, and then read the actual
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# body of the response. That way we know that it is waiting for the
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self.assertEqual('Requested to stop gracefully\n',
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process.stderr.readline())
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self.assertEqual('Waiting for 1 client(s) to finish\n',
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process.stderr.readline())
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body = response_handler.read_body_bytes()
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if body != big_contents:
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self.fail('Failed to properly read the contents of "bigfile"')
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# Now that our request is finished, the medium should notice it has
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self.assertEqual('', m.read_bytes(1))
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# And the server should be stopping
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self.assertEqual(0, process.wait())
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class TestCmdServeChrooting(TestBzrServeBase):
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def test_serve_tcp(self):
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"""'bzr serve' wraps the given --directory in a ChrootServer.
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So requests that search up through the parent directories (like
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find_repositoryV3) will give "not found" responses, rather than
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InvalidURLJoin or jail break errors.
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t = self.get_transport()
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t.mkdir('server-root')
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self.run_bzr_serve_then_func(
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['--listen', '127.0.0.1', '--port', '0',
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'--directory', t.local_abspath('server-root'),
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func=self.when_server_started)
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# The when_server_started method issued a find_repositoryV3 that should
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# fail with 'norepository' because there are no repositories inside the
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self.assertEqual(('norepository',), self.client_resp)
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def when_server_started(self):
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# Connect to the TCP server and issue some requests and see what comes
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client_medium = medium.SmartTCPClientMedium(
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'127.0.0.1', self.tcp_server.port,
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'bzr://localhost:%d/' % (self.tcp_server.port,))
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smart_client = client._SmartClient(client_medium)
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resp = smart_client.call('mkdir', 'foo', '')
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resp = smart_client.call('BzrDirFormat.initialize', 'foo/')
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self.make_branch('a_branch')
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# Start an SSH server
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self.command_executed = []
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# XXX: This is horrible -- we define a really dumb SSH server that
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# executes commands, and manage the hooking up of stdin/out/err to the
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# SSH channel ourselves. Surely this has already been implemented
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class StubSSHServer(StubServer):
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def check_channel_exec_request(self, channel, command):
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self.test.command_executed.append(command)
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proc = subprocess.Popen(
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command, shell=True, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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# XXX: horribly inefficient, not to mention ugly.
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# Start a thread for each of stdin/out/err, and relay bytes from
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# the subprocess to channel and vice versa.
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def ferry_bytes(read, write, close):
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(channel.recv, proc.stdin.write, proc.stdin.close),
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(proc.stdout.read, channel.sendall, channel.close),
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(proc.stderr.read, channel.sendall_stderr, channel.close)]
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for read, write, close in file_functions:
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t = threading.Thread(
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target=ferry_bytes, args=(read, write, close))
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ssh_server = SFTPServer(StubSSHServer)
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# XXX: We *don't* want to override the default SSH vendor, so we set
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# _vendor to what _get_ssh_vendor returns.
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self.addCleanup(ssh_server.tearDown)
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port = ssh_server._listener.port
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# Access the branch via a bzr+ssh URL. The BZR_REMOTE_PATH environment
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# variable is used to tell bzr what command to run on the remote end.
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path_to_branch = os.path.abspath('a_branch')
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orig_bzr_remote_path = os.environ.get('BZR_REMOTE_PATH')
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os.environ['BZR_REMOTE_PATH'] = self.get_bzr_path()
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resp = smart_client.call('BzrDir.find_repositoryV3', 'foo/')
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except errors.ErrorFromSmartServer, e:
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self.client_resp = resp
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client_medium.disconnect()
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class TestUserdirExpansion(TestCaseWithMemoryTransport):
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def fake_expanduser(path):
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"""A simple, environment-independent, function for the duration of this
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Paths starting with a path segment of '~user' will expand to start with
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'/home/user/'. Every other path will be unchanged.
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if path.split('/', 1)[0] == '~user':
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return '/home/user' + path[len('~user'):]
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def make_test_server(self, base_path='/'):
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"""Make and start a BzrServerFactory, backed by a memory transport, and
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creat '/home/user' in that transport.
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bzr_server = BzrServerFactory(
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self.fake_expanduser, lambda t: base_path)
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mem_transport = self.get_transport()
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mem_transport.mkdir_multi(['home', 'home/user'])
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bzr_server.set_up(mem_transport, None, None, inet=True, timeout=4.0)
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self.addCleanup(bzr_server.tear_down)
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def test_bzr_serve_expands_userdir(self):
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bzr_server = self.make_test_server()
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self.assertTrue(bzr_server.smart_server.backing_transport.has('~user'))
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def test_bzr_serve_does_not_expand_userdir_outside_base(self):
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bzr_server = self.make_test_server('/foo')
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self.assertFalse(bzr_server.smart_server.backing_transport.has('~user'))
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def test_get_base_path(self):
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"""cmd_serve will turn the --directory option into a LocalTransport
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(optionally decorated with 'readonly+'). BzrServerFactory can
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determine the original --directory from that transport.
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# URLs always include the trailing slash, and get_base_path returns it
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base_dir = osutils.abspath('/a/b/c') + '/'
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base_url = urlutils.local_path_to_url(base_dir) + '/'
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# Define a fake 'protocol' to capture the transport that cmd_serve
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# passes to serve_bzr.
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def capture_transport(transport, host, port, inet, timeout):
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self.bzr_serve_transport = transport
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cmd = builtins.cmd_serve()
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cmd.run(directory=base_dir, protocol=capture_transport)
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server_maker = BzrServerFactory()
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'readonly+%s' % base_url, self.bzr_serve_transport.base)
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base_dir, server_maker.get_base_path(self.bzr_serve_transport))
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cmd.run(directory=base_dir, protocol=capture_transport,
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server_maker = BzrServerFactory()
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self.assertEqual(base_url, self.bzr_serve_transport.base)
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self.assertEqual(base_dir,
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server_maker.get_base_path(self.bzr_serve_transport))
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# Read-only, from a URL
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cmd.run(directory=base_url, protocol=capture_transport)
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server_maker = BzrServerFactory()
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'readonly+%s' % base_url, self.bzr_serve_transport.base)
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base_dir, server_maker.get_base_path(self.bzr_serve_transport))
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branch = Branch.open(
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'bzr+ssh://fred:secret@localhost:%d%s' % (port, path_to_branch))
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branch.repository.get_revision_graph()
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self.assertEqual(None, branch.last_revision())
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# Check we can perform write operations
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branch.bzrdir.root_transport.mkdir('foo')
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# Restore the BZR_REMOTE_PATH environment variable back to its
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if orig_bzr_remote_path is None:
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del os.environ['BZR_REMOTE_PATH']
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os.environ['BZR_REMOTE_PATH'] = orig_bzr_remote_path
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['%s serve --inet --directory=/ --allow-writes'
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% self.get_bzr_path()],
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self.command_executed)
added
removed
bzrlib/tests/blackbox/test_serve.py
