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Viewing changes to loggerhead/apps/transport.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2007-09-10 17:30:17 UTC
  • mfrom: (138.1.1 mwhudson-sucks)
  • Revision ID: pqm@pqm.ubuntu.com-20070910173017-teattztsb8ep0aer
[trivial] so i cleaned up the tests, but also broke them :( need to look at getting PQM to run the loggerhead tests...

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loggerhead/apps/transport.py
1
 
# Copyright (C) 2008, 2009 Canonical Ltd.
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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,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
 
#
17
 
"""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
 
 
27
 
from paste.request import path_info_pop
28
 
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,
40
 
    '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
48
 
        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)
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        else:
82
 
            new_transport = self.transport.clone(segment)
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            if self.name:
84
 
                new_name = urlutils.join(self.name, segment)
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            else:
86
 
                new_name = '/' + segment
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            return BranchesFromTransportServer(new_transport, self.root, new_name)
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89
 
    def app_for_bazaar_data(self, relpath):
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        if relpath == '/.bzr/smart':
91
 
            root_transport = get_transport_for_thread(self.root.base)
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            wsgi_app = wsgi.SmartWSGIApp(root_transport)
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            return wsgi.RelpathSetter(wsgi_app, '', 'loggerhead.path_info')
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        else:
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            # TODO: Use something here that uses the transport API
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            # rather than relying on the local filesystem API.
97
 
            base = self.transport.base
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            try:
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                path = util.local_path_from_url(base)
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            except errors.InvalidURL:
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                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')
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        if value is None:
108
 
            return
109
 
        elif not _bools.get(value.lower(), True):
110
 
            raise httpexceptions.HTTPNotFound()
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112
 
    def __call__(self, environ, start_response):
113
 
        path = environ['PATH_INFO']
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        try:
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            b = branch.Branch.open_from_transport(self.transport)
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        except errors.NotBranchError:
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            if path.startswith('/.bzr'):
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                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)
123
 
        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
 
 
151
 
    def __call__(self, environ, start_response):
152
 
        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
153
 
        environ['loggerhead.path_info'] = environ['PATH_INFO']
154
 
        if environ['PATH_INFO'].startswith('/static/'):
155
 
            segment = path_info_pop(environ)
156
 
            assert segment == 'static'
157
 
            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)