1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
# Copyright (C) 2010-2012 Chris Ball <cjb@laptop.org>
# W. Trevor King <wking@tremily.us>
#
# This file is part of Bugs Everywhere.
#
# Bugs Everywhere is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 2 of the License, or (at your option) any
# later version.
#
# Bugs Everywhere is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# Bugs Everywhere. If not, see <http://www.gnu.org/licenses/>.
"""Define the :py:class:`ServeCommands` serving BE Commands over HTTP.
See Also
--------
:py:meth:`be-libbe.command.base.Command._run_remote` : the associated client
"""
import logging
import os.path
import posixpath
import re
import urllib
import wsgiref.simple_server
import libbe
import libbe.command
import libbe.command.base
import libbe.storage.util.mapfile
import libbe.util.wsgi
import libbe.version
if libbe.TESTING:
import copy
import doctest
import StringIO
import sys
import unittest
import wsgiref.validate
try:
import cherrypy.test.webtest
cherrypy_test_webtest = True
except ImportError:
cherrypy_test_webtest = None
import libbe.bugdir
import libbe.command.list
class ServerApp (libbe.util.wsgi.WSGI_AppObject,
libbe.util.wsgi.WSGI_DataObject):
"""WSGI server for a BE Command invocation over HTTP.
RESTful_ WSGI request handler for serving the
libbe.command.base.Command._run_remote backend with GET, POST, and
HEAD commands.
This serves all commands from a single, persistant storage
instance, usually a VCS-based repository located on the local
machine.
"""
server_version = "BE-command-server/" + libbe.version.version()
def __init__(self, storage=None, notify=False, **kwargs):
super(ServerApp, self).__init__(
urls=[
(r'^run/?$', self.run),
],
**kwargs)
self.storage = storage
self.ui = libbe.command.base.UserInterface()
self.notify = notify
self.http_user_error = 418
# handlers
def run(self, environ, start_response):
self.check_login(environ)
data = self.post_data(environ)
source = 'post'
try:
name = data['command']
except KeyError:
raise libbe.util.wsgi.HandlerError(
self.http_user_error, 'UnknownCommand')
parameters = data.get('parameters', {})
try:
Class = libbe.command.get_command_class(command_name=name)
except libbe.command.UnknownCommand, e:
raise libbe.util.wsgi.HandlerError(
self.http_user_error, 'UnknownCommand {}'.format(e))
command = Class(ui=self.ui)
self.ui.setup_command(command)
arguments = [option.arg for option in command.options
if option.arg is not None]
arguments.extend(command.args)
for argument in arguments:
if argument.name not in parameters:
parameters[argument.name] = argument.default
command.status = command._run(**parameters) # already parsed params
assert command.status == 0, command.status
stdout = self.ui.io.get_stdout()
if self.notify: # TODO, check what notify does
self._notify(environ, 'run', command)
return self.ok_response(environ, start_response, stdout)
# handler utility functions
def _parse_post(self, post):
return libbe.storage.util.mapfile.parse(post)
def check_login(self, environ):
user = environ.get('be-auth.user', None)
if user is not None: # we're running under AuthenticationApp
if environ['REQUEST_METHOD'] == 'POST':
# TODO: better detection of commands requiring writes
if user == 'guest' or self.storage.is_writeable() == False:
raise _Unauthorized() # only non-guests allowed to write
# allow read-only commands for all users
def _notify(self, environ, command, id, params):
message = self._format_notification(environ, command, id, params)
self._submit_notification(message)
def _format_notification(self, environ, command, id, params):
key_length = len('command')
for key,value in params:
if len(key) > key_length and '\n' not in str(value):
key_length = len(key)
key_length += 1
lines = []
multi_line_params = []
for key,value in [('address', environ.get('REMOTE_ADDR', '-')),
('command', command), ('id', id)]+params:
v = str(value)
if '\n' in v:
multi_line_params.append((key,v))
continue
lines.append('%*.*s %s' % (key_length, key_length, key+':', v))
lines.append('')
for key,value in multi_line_params:
lines.extend(['=== START %s ===' % key, v,
'=== STOP %s ===' % key, ''])
lines.append('')
return '\n'.join(lines)
def _submit_notification(self, message):
libbe.util.subproc.invoke(self.notify, stdin=message, shell=True)
class ServeCommands (libbe.util.wsgi.ServerCommand):
"""Serve commands over HTTP.
This allows you to run local `be` commands interfacing with remote
data, transmitting command requests over the network.
:py:class:`~libbe.command.base.Command` wrapper around
:py:class:`ServerApp`.
"""
name = 'serve-commands'
def _get_app(self, logger, storage, **kwargs):
return ServerApp(
logger=logger, storage=storage, notify=kwargs.get('notify', False))
def _long_help(self):
return """
Example usage::
$ be serve-commands
And in another terminal (or after backgrounding the server)::
$ be --server http://localhost:8000/ list
If you bind your server to a public interface, take a look at the
``--read-only`` option or the combined ``--ssl --auth FILE``
options so other people can't mess with your repository. If you do use
authentication, you'll need to send in your username and password with,
for example::
$ be --repo http://username:password@localhost:8000/ list
"""
# alias for libbe.command.base.get_command_class()
Serve_commands = ServeCommands
if libbe.TESTING:
class ServerAppTestCase (libbe.util.wsgi.WSGITestCase):
def setUp(self):
libbe.util.wsgi.WSGITestCase.setUp(self)
self.bd = libbe.bugdir.SimpleBugDir(memory=False)
self.app = ServerApp(self.bd.storage, logger=self.logger)
def tearDown(self):
self.bd.cleanup()
libbe.util.wsgi.WSGITestCase.tearDown(self)
def test_run_list(self):
list = libbe.command.list.List()
params = list._parse_options_args()
data = libbe.storage.util.mapfile.generate({
'command': 'list',
'parameters': params,
}, context=0)
self.getURL(self.app, '/run', method='POST', data=data)
self.failUnless(self.status.startswith('200 '), self.status)
self.failUnless(
('Content-Type', 'application/octet-stream'
) in self.response_headers,
self.response_headers)
self.failUnless(self.exc_info == None, self.exc_info)
# TODO: integration tests on ServeCommands?
unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])
|
