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

  • Committer: Robert Collins
  • Date: 2007-08-06 23:49:18 UTC
  • mto: (2592.3.81 repository)
  • mto: This revision was merged to the branch mainline in revision 2933.
  • Revision ID: robertc@robertcollins.net-20070806234918-xc9w5f86tgjphf9u
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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
15
 
# 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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17
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18
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"""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
 
    urlutils,
35
30
    )
36
31
from bzrlib.branch import Branch
37
32
from bzrlib.bzrdir import BzrDir
38
 
from bzrlib.smart import client, medium
39
 
from bzrlib.smart.server import BzrServerFactory, SmartTCPServer
40
 
from bzrlib.tests import (
41
 
    TestCaseWithMemoryTransport,
42
 
    TestCaseWithTransport,
43
 
    TestSkipped,
44
 
    )
45
 
from bzrlib.trace import mutter
 
33
from bzrlib.errors import ParamikoNotPresent
 
34
from bzrlib.smart import medium
 
35
from bzrlib.tests import TestCaseWithTransport, TestSkipped
46
36
from bzrlib.transport import get_transport, remote
47
37
 
48
38
 
49
 
class TestBzrServeBase(TestCaseWithTransport):
50
 
 
51
 
    def run_bzr_serve_then_func(self, serve_args, retcode=0, func=None,
52
 
                                *func_args, **func_kwargs):
53
 
        """Run 'bzr serve', and run the given func in a thread once the server
54
 
        has started.
55
 
        
56
 
        When 'func' terminates, the server will be terminated too.
57
 
        
58
 
        Returns stdout and stderr.
59
 
        """
60
 
        # install hook
61
 
        def on_server_start(backing_urls, tcp_server):
62
 
            t = threading.Thread(
63
 
                target=on_server_start_thread, args=(tcp_server,))
64
 
            t.start()
65
 
        def on_server_start_thread(tcp_server):
66
 
            try:
67
 
                # Run func if set
68
 
                self.tcp_server = tcp_server
69
 
                if not func is None:
70
 
                    try:
71
 
                        func(*func_args, **func_kwargs)
72
 
                    except Exception, e:
73
 
                        # Log errors to make some test failures a little less
74
 
                        # mysterious.
75
 
                        mutter('func broke: %r', e)
76
 
            finally:
77
 
                # Then stop the server
78
 
                mutter('interrupting...')
79
 
                thread.interrupt_main()
80
 
        SmartTCPServer.hooks.install_named_hook(
81
 
            'server_started_ex', on_server_start,
82
 
            'run_bzr_serve_then_func hook')
83
 
        # start a TCP server
84
 
        try:
85
 
            out, err = self.run_bzr(['serve'] + list(serve_args))
86
 
        except KeyboardInterrupt, e:
87
 
            out, err = e.args
88
 
        return out, err
89
 
 
90
 
 
91
 
class TestBzrServe(TestBzrServeBase):
92
 
 
93
 
    def setUp(self):
94
 
        super(TestBzrServe, self).setUp()
95
 
        self.disable_missing_extensions_warning()
 
39
class TestBzrServe(TestCaseWithTransport):
96
40
 
97
41
    def assertInetServerShutsdownCleanly(self, process):
98
42
        """Shutdown the server process looking for errors."""
104
48
        result = self.finish_bzr_subprocess(process)
105
49
        self.assertEqual('', result[0])
106
50
        self.assertEqual('', result[1])
107
 
 
 
51
    
108
52
    def assertServerFinishesCleanly(self, process):
109
53
        """Shutdown the bzr serve instance process looking for errors."""
110
54
        # Shutdown the server
113
57
        self.assertEqual('', result[0])
114
58
        self.assertEqual('bzr: interrupted\n', result[1])
115
59
 
116
 
    def make_read_requests(self, branch):
117
 
        """Do some read only requests."""
118
 
        branch.lock_read()
119
 
        try:
120
 
            branch.repository.all_revision_ids()
121
 
            self.assertEqual(_mod_revision.NULL_REVISION,
122
 
                             _mod_revision.ensure_null(branch.last_revision()))
123
 
        finally:
124
 
            branch.unlock()
125
 
 
126
60
    def start_server_inet(self, extra_options=()):
127
61
        """Start a bzr server subprocess using the --inet option.
128
62
 
131
65
            finish_bzr_subprocess, a client for the server, and a transport.
132
66
        """
133
67
        # Serve from the current directory
134
 
        args = ['serve', '--inet']
135
 
        args.extend(extra_options)
136
 
        process = self.start_bzr_subprocess(args)
 
68
        process = self.start_bzr_subprocess(['serve', '--inet'])
137
69
 
138
70
        # Connect to the server
139
71
        # We use this url because while this is no valid URL to connect to this
140
72
        # server instance, the transport needs a URL.
141
 
        url = 'bzr://localhost/'
142
 
        self.permit_url(url)
143
73
        client_medium = medium.SmartSimplePipesClientMedium(
144
 
            process.stdout, process.stdin, url)
145
 
        transport = remote.RemoteTransport(url, medium=client_medium)
 
74
            process.stdout, process.stdin)
 
75
        transport = remote.RemoteTransport(
 
76
            'bzr://localhost/', medium=client_medium)
146
77
        return process, transport
147
78
 
148
79
    def start_server_port(self, extra_options=()):
156
87
        args = ['serve', '--port', 'localhost:0']
157
88
        args.extend(extra_options)
158
89
        process = self.start_bzr_subprocess(args, skip_if_plan_to_signal=True)
159
 
        port_line = process.stderr.readline()
 
90
        port_line = process.stdout.readline()
160
91
        prefix = 'listening on port: '
161
92
        self.assertStartsWith(port_line, prefix)
162
93
        port = int(port_line[len(prefix):])
163
 
        url = 'bzr://localhost:%d/' % port
164
 
        self.permit_url(url)
165
 
        return process, url
166
 
    
167
 
    def test_bzr_serve_quiet(self):
168
 
        self.make_branch('.')
169
 
        args = ['--port', 'localhost:0', '--quiet']
170
 
        out, err = self.run_bzr_serve_then_func(args, retcode=3)
171
 
        self.assertEqual('', out)
172
 
        self.assertEqual('', err)
 
94
        return process,'bzr://localhost:%d/' % port
173
95
 
174
96
    def test_bzr_serve_inet_readonly(self):
175
97
        """bzr server should provide a read only filesystem by default."""
183
105
 
184
106
        process, transport = self.start_server_inet(['--allow-writes'])
185
107
 
186
 
        # We get a working branch, and can create a directory
 
108
        # We get a working branch
187
109
        branch = BzrDir.open_from_transport(transport).open_branch()
188
 
        self.make_read_requests(branch)
189
 
        transport.mkdir('adir')
 
110
        branch.repository.get_revision_graph()
 
111
        self.assertEqual(_mod_revision.NULL_REVISION,
 
112
                         _mod_revision.ensure_null(branch.last_revision()))
190
113
        self.assertInetServerShutsdownCleanly(process)
191
114
 
192
115
    def test_bzr_serve_port_readonly(self):
204
127
 
205
128
        # Connect to the server
206
129
        branch = Branch.open(url)
207
 
        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
 
208
136
        self.assertServerFinishesCleanly(process)
209
137
 
210
 
    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
        
211
149
        # Make a branch
212
 
        self.make_branch('.')
213
 
 
214
 
        process, url = self.start_server_port(['--allow-writes',
215
 
                                               '--protocol=bzr'])
216
 
 
217
 
        # Connect to the server
218
 
        branch = Branch.open(url)
219
 
        self.make_read_requests(branch)
220
 
        self.assertServerFinishesCleanly(process)
221
 
 
222
 
    def test_bzr_serve_dhpss(self):
223
 
        # This is a smoke test that the server doesn't crash when run with
224
 
        # -Dhpss, and does drop some hpss logging to the file.
225
 
        self.make_branch('.')
226
 
        log_fname = os.getcwd() + '/server.log'
227
 
        self._captureVar('BZR_LOG', log_fname)
228
 
        process, transport = self.start_server_inet(['-Dhpss'])
229
 
        branch = BzrDir.open_from_transport(transport).open_branch()
230
 
        self.make_read_requests(branch)
231
 
        self.assertInetServerShutsdownCleanly(process)
232
 
        f = open(log_fname, 'rb')
233
 
        content = f.read()
234
 
        f.close()
235
 
        self.assertContainsRe(content, r'hpss request: \[[0-9-]+\]')
236
 
 
237
 
 
238
 
class TestCmdServeChrooting(TestBzrServeBase):
239
 
 
240
 
    def test_serve_tcp(self):
241
 
        """'bzr serve' wraps the given --directory in a ChrootServer.
242
 
 
243
 
        So requests that search up through the parent directories (like
244
 
        find_repositoryV3) will give "not found" responses, rather than
245
 
        InvalidURLJoin or jail break errors.
246
 
        """
247
 
        t = self.get_transport()
248
 
        t.mkdir('server-root')
249
 
        self.run_bzr_serve_then_func(
250
 
            ['--port', '127.0.0.1:0',
251
 
             '--directory', t.local_abspath('server-root'),
252
 
             '--allow-writes'],
253
 
            func=self.when_server_started)
254
 
        # The when_server_started method issued a find_repositoryV3 that should
255
 
        # fail with 'norepository' because there are no repositories inside the
256
 
        # --directory.
257
 
        self.assertEqual(('norepository',), self.client_resp)
258
 
 
259
 
    def when_server_started(self):
260
 
        # Connect to the TCP server and issue some requests and see what comes
261
 
        # back.
262
 
        client_medium = medium.SmartTCPClientMedium(
263
 
            '127.0.0.1', self.tcp_server.port,
264
 
            'bzr://localhost:%d/' % (self.tcp_server.port,))
265
 
        smart_client = client._SmartClient(client_medium)
266
 
        resp = smart_client.call('mkdir', 'foo', '')
267
 
        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
268
206
        try:
269
 
            resp = smart_client.call('BzrDir.find_repositoryV3', 'foo/')
270
 
        except errors.ErrorFromSmartServer, e:
271
 
            resp = e.error_tuple
272
 
        self.client_resp = resp
273
 
        client_medium.disconnect()
274
 
 
275
 
 
276
 
class TestUserdirExpansion(TestCaseWithMemoryTransport):
277
 
 
278
 
    def fake_expanduser(self, path):
279
 
        """A simple, environment-independent, function for the duration of this
280
 
        test.
281
 
 
282
 
        Paths starting with a path segment of '~user' will expand to start with
283
 
        '/home/user/'.  Every other path will be unchanged.
284
 
        """
285
 
        if path.split('/', 1)[0] == '~user':
286
 
            return '/home/user' + path[len('~user'):]
287
 
        return path
288
 
 
289
 
    def make_test_server(self, base_path='/'):
290
 
        """Make and start a BzrServerFactory, backed by a memory transport, and
291
 
        creat '/home/user' in that transport.
292
 
        """
293
 
        bzr_server = BzrServerFactory(
294
 
            self.fake_expanduser, lambda t: base_path)
295
 
        mem_transport = self.get_transport()
296
 
        mem_transport.mkdir_multi(['home', 'home/user'])
297
 
        bzr_server.set_up(mem_transport, None, None, inet=True)
298
 
        self.addCleanup(bzr_server.tear_down)
299
 
        return bzr_server
300
 
 
301
 
    def test_bzr_serve_expands_userdir(self):
302
 
        bzr_server = self.make_test_server()
303
 
        self.assertTrue(bzr_server.smart_server.backing_transport.has('~user'))
304
 
 
305
 
    def test_bzr_serve_does_not_expand_userdir_outside_base(self):
306
 
        bzr_server = self.make_test_server('/foo')
307
 
        self.assertFalse(bzr_server.smart_server.backing_transport.has('~user'))
308
 
 
309
 
    def test_get_base_path(self):
310
 
        """cmd_serve will turn the --directory option into a LocalTransport
311
 
        (optionally decorated with 'readonly+').  BzrServerFactory can
312
 
        determine the original --directory from that transport.
313
 
        """
314
 
        # URLs always include the trailing slash, and get_base_path returns it
315
 
        base_dir = osutils.abspath('/a/b/c') + '/'
316
 
        base_url = urlutils.local_path_to_url(base_dir) + '/'
317
 
        # Define a fake 'protocol' to capture the transport that cmd_serve
318
 
        # passes to serve_bzr.
319
 
        def capture_transport(transport, host, port, inet):
320
 
            self.bzr_serve_transport = transport
321
 
        cmd = builtins.cmd_serve()
322
 
        # Read-only
323
 
        cmd.run(directory=base_dir, protocol=capture_transport)
324
 
        server_maker = BzrServerFactory()
325
 
        self.assertEqual(
326
 
            'readonly+%s' % base_url, self.bzr_serve_transport.base)
327
 
        self.assertEqual(
328
 
            base_dir, server_maker.get_base_path(self.bzr_serve_transport))
329
 
        # Read-write
330
 
        cmd.run(directory=base_dir, protocol=capture_transport,
331
 
            allow_writes=True)
332
 
        server_maker = BzrServerFactory()
333
 
        self.assertEqual(base_url, self.bzr_serve_transport.base)
334
 
        self.assertEqual(base_dir,
335
 
            server_maker.get_base_path(self.bzr_serve_transport))
336
 
 
 
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