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Viewing changes to bzrlib/tests/blackbox/test_serve.py

  • Committer: Vincent Ladeuil
  • Date: 2007-09-24 15:01:26 UTC
  • mfrom: (2853 +trunk)
  • mto: (2885.1.1 140432)
  • mto: This revision was merged to the branch mainline in revision 2886.
  • Revision ID: v.ladeuil+lp@free.fr-20070924150126-nll7i0385kisklyj
Merge bzr.dev

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# Copyright (C) 2006-2010 Canonical Ltd
 
1
# Copyright (C) 2006 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
17
17
 
18
18
"""Tests of the bzr serve command."""
19
19
 
20
20
import os
21
 
import os.path
22
21
import signal
23
22
import subprocess
24
23
import sys
25
 
import thread
26
24
import threading
27
25
 
28
26
from bzrlib import (
29
 
    builtins,
30
 
    debug,
31
27
    errors,
32
28
    osutils,
33
29
    revision as _mod_revision,
34
 
    transport,
35
 
    urlutils,
36
30
    )
37
31
from bzrlib.branch import Branch
38
32
from bzrlib.bzrdir import BzrDir
39
 
from bzrlib.smart import client, medium
40
 
from bzrlib.smart.server import BzrServerFactory, SmartTCPServer
41
 
from bzrlib.tests import (
42
 
    TestCaseWithMemoryTransport,
43
 
    TestCaseWithTransport,
44
 
    TestSkipped,
45
 
    )
46
 
from bzrlib.trace import mutter
47
 
from bzrlib.transport import remote
48
 
 
49
 
 
50
 
class TestBzrServeBase(TestCaseWithTransport):
51
 
 
52
 
    def run_bzr_serve_then_func(self, serve_args, retcode=0, func=None,
53
 
                                *func_args, **func_kwargs):
54
 
        """Run 'bzr serve', and run the given func in a thread once the server
55
 
        has started.
56
 
        
57
 
        When 'func' terminates, the server will be terminated too.
58
 
        
59
 
        Returns stdout and stderr.
60
 
        """
61
 
        # install hook
62
 
        def on_server_start(backing_urls, tcp_server):
63
 
            t = threading.Thread(
64
 
                target=on_server_start_thread, args=(tcp_server,))
65
 
            t.start()
66
 
        def on_server_start_thread(tcp_server):
67
 
            try:
68
 
                # Run func if set
69
 
                self.tcp_server = tcp_server
70
 
                if not func is None:
71
 
                    try:
72
 
                        func(*func_args, **func_kwargs)
73
 
                    except Exception, e:
74
 
                        # Log errors to make some test failures a little less
75
 
                        # mysterious.
76
 
                        mutter('func broke: %r', e)
77
 
            finally:
78
 
                # Then stop the server
79
 
                mutter('interrupting...')
80
 
                thread.interrupt_main()
81
 
        SmartTCPServer.hooks.install_named_hook(
82
 
            'server_started_ex', on_server_start,
83
 
            'run_bzr_serve_then_func hook')
84
 
        # start a TCP server
85
 
        try:
86
 
            out, err = self.run_bzr(['serve'] + list(serve_args))
87
 
        except KeyboardInterrupt, e:
88
 
            out, err = e.args
89
 
        return out, err
90
 
 
91
 
 
92
 
class TestBzrServe(TestBzrServeBase):
93
 
 
94
 
    def setUp(self):
95
 
        super(TestBzrServe, self).setUp()
96
 
        self.disable_missing_extensions_warning()
 
33
from bzrlib.errors import ParamikoNotPresent
 
34
from bzrlib.smart import medium
 
35
from bzrlib.tests import TestCaseWithTransport, TestSkipped
 
36
from bzrlib.transport import get_transport, remote
 
37
 
 
38
 
 
39
class TestBzrServe(TestCaseWithTransport):
97
40
 
98
41
    def assertInetServerShutsdownCleanly(self, process):
99
42
        """Shutdown the server process looking for errors."""
105
48
        result = self.finish_bzr_subprocess(process)
106
49
        self.assertEqual('', result[0])
107
50
        self.assertEqual('', result[1])
108
 
 
 
51
    
109
52
    def assertServerFinishesCleanly(self, process):
110
53
        """Shutdown the bzr serve instance process looking for errors."""
111
54
        # Shutdown the server
114
57
        self.assertEqual('', result[0])
115
58
        self.assertEqual('bzr: interrupted\n', result[1])
116
59
 
117
 
    def make_read_requests(self, branch):
118
 
        """Do some read only requests."""
119
 
        branch.lock_read()
120
 
        try:
121
 
            branch.repository.all_revision_ids()
122
 
            self.assertEqual(_mod_revision.NULL_REVISION,
123
 
                             _mod_revision.ensure_null(branch.last_revision()))
124
 
        finally:
125
 
            branch.unlock()
126
 
 
127
60
    def start_server_inet(self, extra_options=()):
128
61
        """Start a bzr server subprocess using the --inet option.
129
62
 
132
65
            finish_bzr_subprocess, a client for the server, and a transport.
133
66
        """
134
67
        # Serve from the current directory
135
 
        args = ['serve', '--inet']
136
 
        args.extend(extra_options)
137
 
        process = self.start_bzr_subprocess(args)
 
68
        process = self.start_bzr_subprocess(['serve', '--inet'])
138
69
 
139
70
        # Connect to the server
140
71
        # We use this url because while this is no valid URL to connect to this
141
72
        # server instance, the transport needs a URL.
142
 
        url = 'bzr://localhost/'
143
 
        self.permit_url(url)
144
73
        client_medium = medium.SmartSimplePipesClientMedium(
145
 
            process.stdout, process.stdin, url)
146
 
        transport = remote.RemoteTransport(url, medium=client_medium)
 
74
            process.stdout, process.stdin)
 
75
        transport = remote.RemoteTransport(
 
76
            'bzr://localhost/', medium=client_medium)
147
77
        return process, transport
148
78
 
149
79
    def start_server_port(self, extra_options=()):
157
87
        args = ['serve', '--port', 'localhost:0']
158
88
        args.extend(extra_options)
159
89
        process = self.start_bzr_subprocess(args, skip_if_plan_to_signal=True)
160
 
        port_line = process.stderr.readline()
 
90
        port_line = process.stdout.readline()
161
91
        prefix = 'listening on port: '
162
92
        self.assertStartsWith(port_line, prefix)
163
93
        port = int(port_line[len(prefix):])
164
 
        url = 'bzr://localhost:%d/' % port
165
 
        self.permit_url(url)
166
 
        return process, url
167
 
    
168
 
    def test_bzr_serve_quiet(self):
169
 
        self.make_branch('.')
170
 
        args = ['--port', 'localhost:0', '--quiet']
171
 
        out, err = self.run_bzr_serve_then_func(args, retcode=3)
172
 
        self.assertEqual('', out)
173
 
        self.assertEqual('', err)
 
94
        return process,'bzr://localhost:%d/' % port
174
95
 
175
96
    def test_bzr_serve_inet_readonly(self):
176
97
        """bzr server should provide a read only filesystem by default."""
184
105
 
185
106
        process, transport = self.start_server_inet(['--allow-writes'])
186
107
 
187
 
        # We get a working branch, and can create a directory
 
108
        # We get a working branch
188
109
        branch = BzrDir.open_from_transport(transport).open_branch()
189
 
        self.make_read_requests(branch)
190
 
        transport.mkdir('adir')
 
110
        branch.repository.get_revision_graph()
 
111
        self.assertEqual(_mod_revision.NULL_REVISION,
 
112
                         _mod_revision.ensure_null(branch.last_revision()))
191
113
        self.assertInetServerShutsdownCleanly(process)
192
114
 
193
115
    def test_bzr_serve_port_readonly(self):
194
116
        """bzr server should provide a read only filesystem by default."""
195
117
        process, url = self.start_server_port()
196
 
        t = transport.get_transport(url)
197
 
        self.assertRaises(errors.TransportNotPossible, t.mkdir, 'adir')
 
118
        transport = get_transport(url)
 
119
        self.assertRaises(errors.TransportNotPossible, transport.mkdir, 'adir')
198
120
        self.assertServerFinishesCleanly(process)
199
121
 
200
122
    def test_bzr_serve_port_readwrite(self):
205
127
 
206
128
        # Connect to the server
207
129
        branch = Branch.open(url)
208
 
        self.make_read_requests(branch)
 
130
 
 
131
        # We get a working branch
 
132
        branch.repository.get_revision_graph()
 
133
        self.assertEqual(_mod_revision.NULL_REVISION,
 
134
                         _mod_revision.ensure_null(branch.last_revision()))
 
135
 
209
136
        self.assertServerFinishesCleanly(process)
210
137
 
211
 
    def test_bzr_serve_supports_protocol(self):
 
138
    def test_bzr_connect_to_bzr_ssh(self):
 
139
        """User acceptance that get_transport of a bzr+ssh:// behaves correctly.
 
140
 
 
141
        bzr+ssh:// should cause bzr to run a remote bzr smart server over SSH.
 
142
        """
 
143
        try:
 
144
            from bzrlib.transport.sftp import SFTPServer
 
145
        except ParamikoNotPresent:
 
146
            raise TestSkipped('Paramiko not installed')
 
147
        from bzrlib.tests.stub_sftp import StubServer
 
148
        
212
149
        # Make a branch
213
 
        self.make_branch('.')
214
 
 
215
 
        process, url = self.start_server_port(['--allow-writes',
216
 
                                               '--protocol=bzr'])
217
 
 
218
 
        # Connect to the server
219
 
        branch = Branch.open(url)
220
 
        self.make_read_requests(branch)
221
 
        self.assertServerFinishesCleanly(process)
222
 
 
223
 
    def test_bzr_serve_dhpss(self):
224
 
        # This is a smoke test that the server doesn't crash when run with
225
 
        # -Dhpss, and does drop some hpss logging to the file.
226
 
        self.make_branch('.')
227
 
        log_fname = os.getcwd() + '/server.log'
228
 
        self._captureVar('BZR_LOG', log_fname)
229
 
        process, transport = self.start_server_inet(['-Dhpss'])
230
 
        branch = BzrDir.open_from_transport(transport).open_branch()
231
 
        self.make_read_requests(branch)
232
 
        self.assertInetServerShutsdownCleanly(process)
233
 
        f = open(log_fname, 'rb')
234
 
        content = f.read()
235
 
        f.close()
236
 
        self.assertContainsRe(content, r'hpss request: \[[0-9-]+\]')
237
 
 
238
 
 
239
 
class TestCmdServeChrooting(TestBzrServeBase):
240
 
 
241
 
    def test_serve_tcp(self):
242
 
        """'bzr serve' wraps the given --directory in a ChrootServer.
243
 
 
244
 
        So requests that search up through the parent directories (like
245
 
        find_repositoryV3) will give "not found" responses, rather than
246
 
        InvalidURLJoin or jail break errors.
247
 
        """
248
 
        t = self.get_transport()
249
 
        t.mkdir('server-root')
250
 
        self.run_bzr_serve_then_func(
251
 
            ['--port', '127.0.0.1:0',
252
 
             '--directory', t.local_abspath('server-root'),
253
 
             '--allow-writes'],
254
 
            func=self.when_server_started)
255
 
        # The when_server_started method issued a find_repositoryV3 that should
256
 
        # fail with 'norepository' because there are no repositories inside the
257
 
        # --directory.
258
 
        self.assertEqual(('norepository',), self.client_resp)
259
 
 
260
 
    def when_server_started(self):
261
 
        # Connect to the TCP server and issue some requests and see what comes
262
 
        # back.
263
 
        client_medium = medium.SmartTCPClientMedium(
264
 
            '127.0.0.1', self.tcp_server.port,
265
 
            'bzr://localhost:%d/' % (self.tcp_server.port,))
266
 
        smart_client = client._SmartClient(client_medium)
267
 
        resp = smart_client.call('mkdir', 'foo', '')
268
 
        resp = smart_client.call('BzrDirFormat.initialize', 'foo/')
 
150
        self.make_branch('a_branch')
 
151
 
 
152
        # Start an SSH server
 
153
        self.command_executed = []
 
154
        # XXX: This is horrible -- we define a really dumb SSH server that
 
155
        # executes commands, and manage the hooking up of stdin/out/err to the
 
156
        # SSH channel ourselves.  Surely this has already been implemented
 
157
        # elsewhere?
 
158
        class StubSSHServer(StubServer):
 
159
 
 
160
            test = self
 
161
 
 
162
            def check_channel_exec_request(self, channel, command):
 
163
                self.test.command_executed.append(command)
 
164
                proc = subprocess.Popen(
 
165
                    command, shell=True, stdin=subprocess.PIPE,
 
166
                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
167
                
 
168
                # XXX: horribly inefficient, not to mention ugly.
 
169
                # Start a thread for each of stdin/out/err, and relay bytes from
 
170
                # the subprocess to channel and vice versa.
 
171
                def ferry_bytes(read, write, close):
 
172
                    while True:
 
173
                        bytes = read(1)
 
174
                        if bytes == '':
 
175
                            close()
 
176
                            break
 
177
                        write(bytes)
 
178
 
 
179
                file_functions = [
 
180
                    (channel.recv, proc.stdin.write, proc.stdin.close),
 
181
                    (proc.stdout.read, channel.sendall, channel.close),
 
182
                    (proc.stderr.read, channel.sendall_stderr, channel.close)]
 
183
                for read, write, close in file_functions:
 
184
                    t = threading.Thread(
 
185
                        target=ferry_bytes, args=(read, write, close))
 
186
                    t.start()
 
187
 
 
188
                return True
 
189
 
 
190
        ssh_server = SFTPServer(StubSSHServer)
 
191
        # XXX: We *don't* want to override the default SSH vendor, so we set
 
192
        # _vendor to what _get_ssh_vendor returns.
 
193
        ssh_server.setUp()
 
194
        self.addCleanup(ssh_server.tearDown)
 
195
        port = ssh_server._listener.port
 
196
 
 
197
        # Access the branch via a bzr+ssh URL.  The BZR_REMOTE_PATH environment
 
198
        # variable is used to tell bzr what command to run on the remote end.
 
199
        path_to_branch = osutils.abspath('a_branch')
 
200
        
 
201
        orig_bzr_remote_path = os.environ.get('BZR_REMOTE_PATH')
 
202
        bzr_remote_path = self.get_bzr_path()
 
203
        if sys.platform == 'win32':
 
204
            bzr_remote_path = sys.executable + ' ' + self.get_bzr_path()
 
205
        os.environ['BZR_REMOTE_PATH'] = bzr_remote_path
269
206
        try:
270
 
            resp = smart_client.call('BzrDir.find_repositoryV3', 'foo/')
271
 
        except errors.ErrorFromSmartServer, e:
272
 
            resp = e.error_tuple
273
 
        self.client_resp = resp
274
 
        client_medium.disconnect()
275
 
 
276
 
 
277
 
class TestUserdirExpansion(TestCaseWithMemoryTransport):
278
 
 
279
 
    def fake_expanduser(self, path):
280
 
        """A simple, environment-independent, function for the duration of this
281
 
        test.
282
 
 
283
 
        Paths starting with a path segment of '~user' will expand to start with
284
 
        '/home/user/'.  Every other path will be unchanged.
285
 
        """
286
 
        if path.split('/', 1)[0] == '~user':
287
 
            return '/home/user' + path[len('~user'):]
288
 
        return path
289
 
 
290
 
    def make_test_server(self, base_path='/'):
291
 
        """Make and start a BzrServerFactory, backed by a memory transport, and
292
 
        creat '/home/user' in that transport.
293
 
        """
294
 
        bzr_server = BzrServerFactory(
295
 
            self.fake_expanduser, lambda t: base_path)
296
 
        mem_transport = self.get_transport()
297
 
        mem_transport.mkdir_multi(['home', 'home/user'])
298
 
        bzr_server.set_up(mem_transport, None, None, inet=True)
299
 
        self.addCleanup(bzr_server.tear_down)
300
 
        return bzr_server
301
 
 
302
 
    def test_bzr_serve_expands_userdir(self):
303
 
        bzr_server = self.make_test_server()
304
 
        self.assertTrue(bzr_server.smart_server.backing_transport.has('~user'))
305
 
 
306
 
    def test_bzr_serve_does_not_expand_userdir_outside_base(self):
307
 
        bzr_server = self.make_test_server('/foo')
308
 
        self.assertFalse(bzr_server.smart_server.backing_transport.has('~user'))
309
 
 
310
 
    def test_get_base_path(self):
311
 
        """cmd_serve will turn the --directory option into a LocalTransport
312
 
        (optionally decorated with 'readonly+').  BzrServerFactory can
313
 
        determine the original --directory from that transport.
314
 
        """
315
 
        # URLs always include the trailing slash, and get_base_path returns it
316
 
        base_dir = osutils.abspath('/a/b/c') + '/'
317
 
        base_url = urlutils.local_path_to_url(base_dir) + '/'
318
 
        # Define a fake 'protocol' to capture the transport that cmd_serve
319
 
        # passes to serve_bzr.
320
 
        def capture_transport(transport, host, port, inet):
321
 
            self.bzr_serve_transport = transport
322
 
        cmd = builtins.cmd_serve()
323
 
        # Read-only
324
 
        cmd.run(directory=base_dir, protocol=capture_transport)
325
 
        server_maker = BzrServerFactory()
326
 
        self.assertEqual(
327
 
            'readonly+%s' % base_url, self.bzr_serve_transport.base)
328
 
        self.assertEqual(
329
 
            base_dir, server_maker.get_base_path(self.bzr_serve_transport))
330
 
        # Read-write
331
 
        cmd.run(directory=base_dir, protocol=capture_transport,
332
 
            allow_writes=True)
333
 
        server_maker = BzrServerFactory()
334
 
        self.assertEqual(base_url, self.bzr_serve_transport.base)
335
 
        self.assertEqual(base_dir,
336
 
            server_maker.get_base_path(self.bzr_serve_transport))
337
 
 
 
207
            if sys.platform == 'win32':
 
208
                path_to_branch = os.path.splitdrive(path_to_branch)[1]
 
209
            branch = Branch.open(
 
210
                'bzr+ssh://fred:secret@localhost:%d%s' % (port, path_to_branch))
 
211
            
 
212
            branch.repository.get_revision_graph()
 
213
            self.assertEqual(_mod_revision.NULL_REVISION,
 
214
                             _mod_revision.ensure_null(branch.last_revision()))
 
215
            # Check we can perform write operations
 
216
            branch.bzrdir.root_transport.mkdir('foo')
 
217
        finally:
 
218
            # Restore the BZR_REMOTE_PATH environment variable back to its
 
219
            # original state.
 
220
            if orig_bzr_remote_path is None:
 
221
                del os.environ['BZR_REMOTE_PATH']
 
222
            else:
 
223
                os.environ['BZR_REMOTE_PATH'] = orig_bzr_remote_path
 
224
 
 
225
        self.assertEqual(
 
226
            ['%s serve --inet --directory=/ --allow-writes'
 
227
             % bzr_remote_path],
 
228
            self.command_executed)
 
229