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  • Committer: Michael Hudson
  • Date: 2008-06-16 23:50:29 UTC
  • mto: This revision was merged to the branch mainline in revision 164.
  • Revision ID: michael.hudson@canonical.com-20080616235029-2wfu8fdh3q55uoca
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# Copyright (C) 2008-2011 Canonical Ltd.
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#
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# This program is free software; you can redistribute it and/or modify
4
 
# 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,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
12
 
#
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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#
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"""Serve branches at urls that mimic a transport's file system layout."""
18
 
 
19
 
import threading
20
 
 
21
 
from bzrlib import branch, errors, lru_cache, urlutils
22
 
from bzrlib.config import LocationConfig
23
 
from bzrlib.smart import request
24
 
from bzrlib.transport import get_transport
25
 
from bzrlib.transport.http import wsgi
26
 
 
 
1
import cgi, os, tempfile
 
2
from bzrlib import branch, errors
 
3
from loggerhead.history import History
 
4
from loggerhead.wsgiapp import BranchWSGIApp, static_app
27
5
from paste.request import path_info_pop
 
6
from paste.wsgiwrappers import WSGIRequest, WSGIResponse
28
7
from paste import httpexceptions
29
 
from paste import urlparser
30
 
 
31
 
from loggerhead import util
32
 
from loggerhead.apps.branch import BranchWSGIApp
33
 
from loggerhead.apps import favicon_app, robots_app, static_app
34
 
from loggerhead.controllers.directory_ui import DirectoryUI
35
 
 
36
 
# TODO: Use bzrlib.ui.bool_from_string(), added in bzr 1.18
37
 
_bools = {
38
 
    'yes': True, 'no': False,
39
 
    'on': True, 'off': False,
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    '1': True, '0': False,
41
 
    'true': True, 'false': False,
42
 
    }
43
 
 
44
 
class BranchesFromTransportServer(object):
45
 
 
46
 
    def __init__(self, transport, root, name=None):
47
 
        self.transport = transport
 
8
from paste import httpserver
 
9
from paste.httpexceptions import make_middleware
 
10
from paste.translogger import make_filter
 
11
from loggerhead.changecache import FileChangeCache
 
12
 
 
13
 
 
14
sql_dir = tempfile.mkdtemp()
 
15
 
 
16
class BranchesFromFileSystemServer(object):
 
17
    def __init__(self, folder, root):
 
18
        self.folder = folder
48
19
        self.root = root
49
 
        self.name = name
50
 
        self._config = root._config
51
 
 
52
 
    def app_for_branch(self, branch):
53
 
        if not self.name:
54
 
            name = branch._get_nick(local=True)
55
 
            is_root = True
56
 
        else:
57
 
            name = self.name
58
 
            is_root = False
59
 
        branch_app = BranchWSGIApp(
60
 
            branch,
61
 
            name,
62
 
            {'cachepath': self._config.SQL_DIR},
63
 
            self.root.graph_cache,
64
 
            is_root=is_root,
65
 
            use_cdn=self._config.get_option('use_cdn'),
66
 
            )
67
 
        return branch_app.app
68
 
 
69
 
    def app_for_non_branch(self, environ):
70
 
        segment = path_info_pop(environ)
71
 
        if segment is None:
72
 
            raise httpexceptions.HTTPMovedPermanently.relative_redirect(
73
 
                environ['SCRIPT_NAME'] + '/', environ)
74
 
        elif segment == '':
75
 
            if self.name:
76
 
                name = self.name
77
 
            else:
78
 
                name = '/'
79
 
            return DirectoryUI(
80
 
                environ['loggerhead.static.url'], self.transport, name)
81
 
        else:
82
 
            new_transport = self.transport.clone(segment)
83
 
            if self.name:
84
 
                new_name = urlutils.join(self.name, segment)
85
 
            else:
86
 
                new_name = '/' + segment
87
 
            return BranchesFromTransportServer(new_transport, self.root, new_name)
88
 
 
89
 
    def app_for_bazaar_data(self, relpath):
90
 
        if relpath == '/.bzr/smart':
91
 
            root_transport = get_transport_for_thread(self.root.base)
92
 
            wsgi_app = wsgi.SmartWSGIApp(root_transport)
93
 
            return wsgi.RelpathSetter(wsgi_app, '', 'loggerhead.path_info')
94
 
        else:
95
 
            # TODO: Use something here that uses the transport API
96
 
            # rather than relying on the local filesystem API.
97
 
            base = self.transport.base
98
 
            try:
99
 
                path = util.local_path_from_url(base)
100
 
            except errors.InvalidURL:
101
 
                raise httpexceptions.HTTPNotFound()
102
 
            else:
103
 
                return urlparser.make_static(None, path)
104
 
 
105
 
    def check_serveable(self, config):
106
 
        value = config.get_user_option('http_serve')
107
 
        if value is None:
108
 
            return
109
 
        elif not _bools.get(value.lower(), True):
 
20
 
 
21
    def __call__(self, environ, start_response):
 
22
        path = os.path.join(self.root.folder, self.folder)
 
23
        if not os.path.isdir(path):
110
24
            raise httpexceptions.HTTPNotFound()
111
 
 
112
 
    def __call__(self, environ, start_response):
113
 
        path = environ['PATH_INFO']
 
25
        if path in self.root.cache:
 
26
            return self.root.cache[path](environ, start_response)
114
27
        try:
115
 
            b = branch.Branch.open_from_transport(self.transport)
 
28
            b = branch.Branch.open(path)
116
29
        except errors.NotBranchError:
117
 
            if path.startswith('/.bzr'):
118
 
                self.check_serveable(LocationConfig(self.transport.base))
119
 
                return self.app_for_bazaar_data(path)(environ, start_response)
120
 
            if not self.transport.listable() or not self.transport.has('.'):
121
 
                raise httpexceptions.HTTPNotFound()
122
 
            return self.app_for_non_branch(environ)(environ, start_response)
 
30
            segment = path_info_pop(environ)
 
31
            if segment is None:
 
32
                raise httpexceptions.HTTPMovedPermanently(environ['SCRIPT_NAME'] + '/')
 
33
            elif segment == '':
 
34
                request = WSGIRequest(environ)
 
35
                response = WSGIResponse()
 
36
                listing = [d for d in os.listdir(path) if not d.startswith('.')]
 
37
                response.headers['Content-Type'] = 'text/html'
 
38
                print >> response, '<html><body>'
 
39
                for d in sorted(listing):
 
40
                    if os.path.isdir(os.path.join(path, d)):
 
41
                        d = cgi.escape(d)
 
42
                        print >> response, '<li><a href="%s/">%s</a></li>' % (d, d)
 
43
                print >> response, '</body></html>'
 
44
                return response(environ, start_response)
 
45
            else:
 
46
                relpath = os.path.join(self.folder, segment)
 
47
                return BranchesFromFileSystemServer(relpath, self.root)(
 
48
                    environ, start_response)
123
49
        else:
124
 
            self.check_serveable(b.get_config())
125
 
            if path.startswith('/.bzr'):
126
 
                return self.app_for_bazaar_data(path)(environ, start_response)
127
 
            else:
128
 
                return self.app_for_branch(b)(environ, start_response)
129
 
 
130
 
 
131
 
_transport_store = threading.local()
132
 
 
133
 
def get_transport_for_thread(base):
134
 
    thread_transports = getattr(_transport_store, 'transports', None)
135
 
    if thread_transports is None:
136
 
        thread_transports = _transport_store.transports = {}
137
 
    if base in thread_transports:
138
 
        return thread_transports[base]
139
 
    transport = get_transport(base)
140
 
    thread_transports[base] = transport
141
 
    return transport
142
 
 
143
 
 
144
 
class BranchesFromTransportRoot(object):
145
 
 
146
 
    def __init__(self, base, config):
147
 
        self.graph_cache = lru_cache.LRUCache(10)
148
 
        self.base = base
149
 
        self._config = config
150
 
 
 
50
            b.lock_read()
 
51
            try:
 
52
                _history = History.from_branch(b)
 
53
                _history.use_file_cache(FileChangeCache(_history, sql_dir))
 
54
                if not self.folder:
 
55
                    name = os.path.basename(os.path.abspath(path))
 
56
                else:
 
57
                    name = self.folder
 
58
                h = BranchWSGIApp(_history, name).app
 
59
                self.root.cache[path] = h
 
60
                return h(environ, start_response)
 
61
            finally:
 
62
                b.unlock()
 
63
 
 
64
class BranchesFromFileSystemRoot(object):
 
65
    def __init__(self, folder):
 
66
        self.cache = {}
 
67
        self.folder = folder
151
68
    def __call__(self, environ, start_response):
152
69
        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
153
 
        environ['loggerhead.path_info'] = environ['PATH_INFO']
154
70
        if environ['PATH_INFO'].startswith('/static/'):
155
71
            segment = path_info_pop(environ)
156
72
            assert segment == 'static'
157
73
            return static_app(environ, start_response)
158
 
        elif environ['PATH_INFO'] == '/favicon.ico':
159
 
            return favicon_app(environ, start_response)
160
 
        elif environ['PATH_INFO'] == '/robots.txt':
161
 
            return robots_app(environ, start_response)
162
 
        else:
163
 
            transport = get_transport_for_thread(self.base)
164
 
            return BranchesFromTransportServer(
165
 
                transport, self)(environ, start_response)
166
 
 
167
 
 
168
 
class UserBranchesFromTransportRoot(object):
169
 
 
170
 
    def __init__(self, base, config):
171
 
        self.graph_cache = lru_cache.LRUCache(10)
172
 
        self.base = base
173
 
        self._config = config
174
 
        self.trunk_dir = config.get_option('trunk_dir')
175
 
 
176
 
    def __call__(self, environ, start_response):
177
 
        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
178
 
        environ['loggerhead.path_info'] = environ['PATH_INFO']
179
 
        path_info = environ['PATH_INFO']
180
 
        if path_info.startswith('/static/'):
181
 
            segment = path_info_pop(environ)
182
 
            assert segment == 'static'
183
 
            return static_app(environ, start_response)
184
 
        elif path_info == '/favicon.ico':
185
 
            return favicon_app(environ, start_response)
186
 
        elif environ['PATH_INFO'] == '/robots.txt':
187
 
            return robots_app(environ, start_response)
188
 
        else:
189
 
            transport = get_transport_for_thread(self.base)
190
 
            # segments starting with ~ are user branches
191
 
            if path_info.startswith('/~'):
192
 
                segment = path_info_pop(environ)
193
 
                return BranchesFromTransportServer(
194
 
                    transport.clone(segment[1:]), self, segment)(
195
 
                    environ, start_response)
196
 
            else:
197
 
                return BranchesFromTransportServer(
198
 
                    transport.clone(self.trunk_dir), self)(
199
 
                    environ, start_response)
 
74
        else:
 
75
            return BranchesFromFileSystemServer(
 
76
                '', self)(environ, start_response)
 
77
 
 
78
app = BranchesFromFileSystemRoot('.')
 
79
 
 
80
app = app
 
81
app = make_middleware(app)
 
82
app = make_filter(app, None)
 
83
 
 
84
 
 
85
httpserver.serve(app, host='127.0.0.1', port='9876')
 
86