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Viewing changes to loggerhead/apps/filesystem.py

  • Committer: Martin Albisetti
  • Date: 2008-08-15 16:24:50 UTC
  • Revision ID: argentina@gmail.com-20080815162450-m3sqctbtjlnc7btu
Tags: loggerhead-1.6
Update NEWS. 1.6 Released.

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# 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,
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# 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.
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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
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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."""
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19
 
import threading
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from bzrlib import branch, errors, lru_cache, urlutils
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from bzrlib.config import LocationConfig
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from bzrlib.smart import request
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from bzrlib.transport import get_transport
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from bzrlib.transport.http import wsgi
 
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"""Serve branches at urls that mimic the file system layout."""
 
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import os
 
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import tempfile
 
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from bzrlib import branch, errors, lru_cache
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7
 
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from paste.request import path_info_pop
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9
from paste import httpexceptions
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from paste import urlparser
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from loggerhead.apps.branch import BranchWSGIApp
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from loggerhead.apps import favicon_app, robots_app, static_app
 
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from loggerhead.apps import favicon_app, static_app
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13
from loggerhead.controllers.directory_ui import DirectoryUI
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14
 
35
 
_bools = {
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    'yes': True, 'no': False,
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    'on': True, 'off': False,
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    '1': True, '0': False,
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    'true': True, 'false': False,
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    }
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42
 
class BranchesFromTransportServer(object):
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44
 
    def __init__(self, transport, root, name=None):
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        self.transport = transport
 
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sql_dir = tempfile.mkdtemp(prefix='loggerhead-cache-')
 
16
 
 
17
 
 
18
class BranchesFromFileSystemServer(object):
 
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    def __init__(self, path, root, name=None):
 
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        self.path = path
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        self.root = root
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        self.name = name
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        self._config = root._config
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23
 
50
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    def app_for_branch(self, branch):
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25
        if not self.name:
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            name = branch._get_nick(local=True)
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            is_root = True
 
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            name = branch.nick
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        else:
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            name = self.name
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            is_root = False
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29
        branch_app = BranchWSGIApp(
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            branch,
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            name,
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            {'cachepath': self._config.SQL_DIR},
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            self.root.graph_cache,
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            is_root=is_root,
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            use_cdn=self._config.get_option('use_cdn'),
64
 
            )
 
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            branch, name, {'cachepath': sql_dir}, self.root.graph_cache)
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        return branch_app.app
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67
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    def app_for_non_branch(self, environ):
74
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                name = self.name
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            else:
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                name = '/'
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            return DirectoryUI(
78
 
                environ['loggerhead.static.url'], self.transport, name)
 
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            return DirectoryUI(environ['loggerhead.static.url'], self.path, name)
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        else:
80
 
            new_transport = self.transport.clone(segment)
 
45
            new_path = os.path.join(self.path, segment)
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46
            if self.name:
82
 
                new_name = urlutils.join(self.name, segment)
 
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                new_name = os.path.join(self.name, segment)
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48
            else:
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                new_name = '/' + segment
85
 
            return BranchesFromTransportServer(new_transport, self.root, new_name)
86
 
 
87
 
    def app_for_bazaar_data(self, relpath):
88
 
        if relpath == '/.bzr/smart':
89
 
            root_transport = get_transport_for_thread(self.root.base)
90
 
            wsgi_app = wsgi.SmartWSGIApp(root_transport)
91
 
            return wsgi.RelpathSetter(wsgi_app, '', 'loggerhead.path_info')
92
 
        else:
93
 
            # TODO: Use something here that uses the transport API
94
 
            # rather than relying on the local filesystem API.
95
 
            base = self.transport.base
96
 
            readonly_prefix = 'readonly+'
97
 
            if base.startswith(readonly_prefix):
98
 
                base = base[len(readonly_prefix):]
99
 
            try:
100
 
                path = urlutils.local_path_from_url(base)
101
 
            except errors.InvalidURL:
102
 
                raise httpexceptions.HTTPNotFound()
103
 
            else:
104
 
                return urlparser.make_static(None, path)
105
 
 
106
 
    def check_serveable(self, config):
107
 
        value = config.get_user_option('http_serve')
108
 
        if value is None:
109
 
            return
110
 
        elif not _bools.get(value.lower(), True):
 
50
            return BranchesFromFileSystemServer(new_path, self.root, new_name)
 
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    def __call__(self, environ, start_response):
 
53
        if not os.path.isdir(self.path):
111
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            raise httpexceptions.HTTPNotFound()
112
 
 
113
 
    def __call__(self, environ, start_response):
114
 
        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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            b = branch.Branch.open(self.path)
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        except errors.NotBranchError:
118
 
            if path.startswith('/.bzr'):
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                self.check_serveable(LocationConfig(self.transport.base))
120
 
                return self.app_for_bazaar_data(path)(environ, start_response)
121
 
            if not self.transport.listable() or not self.transport.has('.'):
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                raise httpexceptions.HTTPNotFound()
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            return self.app_for_non_branch(environ)(environ, start_response)
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        else:
125
 
            self.check_serveable(b.get_config())
126
 
            if path.startswith('/.bzr'):
127
 
                return self.app_for_bazaar_data(path)(environ, start_response)
128
 
            else:
129
 
                return self.app_for_branch(b)(environ, start_response)
130
 
 
131
 
 
132
 
_transport_store = threading.local()
133
 
 
134
 
def get_transport_for_thread(base):
135
 
    thread_transports = getattr(_transport_store, 'transports', None)
136
 
    if thread_transports is None:
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        thread_transports = _transport_store.transports = {}
138
 
    if base in thread_transports:
139
 
        return thread_transports[base]
140
 
    transport = get_transport(base)
141
 
    thread_transports[base] = transport
142
 
    return transport
143
 
 
144
 
 
145
 
class BranchesFromTransportRoot(object):
146
 
 
147
 
    def __init__(self, base, config):
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        self.graph_cache = lru_cache.LRUCache(10)
149
 
        self.base = base
150
 
        self._config = config
 
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            return self.app_for_branch(b)(environ, start_response)
 
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62
 
 
63
class BranchesFromFileSystemRoot(object):
 
64
 
 
65
    def __init__(self, folder):
 
66
        self.graph_cache = lru_cache.LRUCache()
 
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        self.folder = folder
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68
 
152
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    def __call__(self, environ, start_response):
153
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        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
154
 
        environ['loggerhead.path_info'] = environ['PATH_INFO']
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        if environ['PATH_INFO'].startswith('/static/'):
156
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            segment = path_info_pop(environ)
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            assert segment == 'static'
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            return static_app(environ, start_response)
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        elif environ['PATH_INFO'] == '/favicon.ico':
160
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            return favicon_app(environ, start_response)
161
 
        elif environ['PATH_INFO'] == '/robots.txt':
162
 
            return robots_app(environ, start_response)
163
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        else:
164
 
            transport = get_transport_for_thread(self.base)
165
 
            return BranchesFromTransportServer(
166
 
                transport, self)(environ, start_response)
167
 
 
168
 
 
169
 
class UserBranchesFromTransportRoot(object):
170
 
 
171
 
    def __init__(self, base, config):
172
 
        self.graph_cache = lru_cache.LRUCache(10)
173
 
        self.base = base
174
 
        self._config = config
175
 
        self.trunk_dir = config.get_option('trunk_dir')
 
78
            return BranchesFromFileSystemServer(
 
79
                self.folder, self)(environ, start_response)
 
80
 
 
81
 
 
82
class UserBranchesFromFileSystemRoot(object):
 
83
 
 
84
    def __init__(self, folder, trunk_dir):
 
85
        self.graph_cache = lru_cache.LRUCache()
 
86
        self.folder = folder
 
87
        self.trunk_dir = trunk_dir
176
88
 
177
89
    def __call__(self, environ, start_response):
178
90
        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
179
 
        environ['loggerhead.path_info'] = environ['PATH_INFO']
180
 
        path_info = environ['PATH_INFO']
 
91
        path_info= environ['PATH_INFO']
181
92
        if path_info.startswith('/static/'):
182
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            segment = path_info_pop(environ)
183
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            assert segment == 'static'
184
95
            return static_app(environ, start_response)
185
96
        elif path_info == '/favicon.ico':
186
97
            return favicon_app(environ, start_response)
187
 
        elif environ['PATH_INFO'] == '/robots.txt':
188
 
            return robots_app(environ, start_response)
189
98
        else:
190
 
            transport = get_transport_for_thread(self.base)
191
99
            # segments starting with ~ are user branches
192
100
            if path_info.startswith('/~'):
193
101
                segment = path_info_pop(environ)
194
 
                return BranchesFromTransportServer(
195
 
                    transport.clone(segment[1:]), self, segment)(
196
 
                    environ, start_response)
 
102
                new_path = os.path.join(self.folder, segment[1:])
 
103
                return BranchesFromFileSystemServer(
 
104
                    new_path, self, segment)(environ, start_response)
197
105
            else:
198
 
                return BranchesFromTransportServer(
199
 
                    transport.clone(self.trunk_dir), self)(
200
 
                    environ, start_response)
 
106
                new_path = os.path.join(self.folder, self.trunk_dir)
 
107
                return BranchesFromFileSystemServer(
 
108
                    new_path, self)(environ, start_response)