1 # Copyright (C) 2010-2012 Chris Ball <cjb@laptop.org>
2 # W. Trevor King <wking@drexel.edu>
4 # This file is part of Bugs Everywhere.
6 # Bugs Everywhere is free software: you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License as published by the Free
8 # Software Foundation, either version 2 of the License, or (at your option) any
11 # Bugs Everywhere is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 # You should have received a copy of the GNU General Public License along with
17 # Bugs Everywhere. If not, see <http://www.gnu.org/licenses/>.
19 """Define the :class:`ServeCommands` serving BE Commands over HTTP.
23 :py:meth:`be-libbe.command.base.Command._run_remote` : the associated client
31 import wsgiref.simple_server
37 import libbe.command.base
38 import libbe.util.wsgi
47 import wsgiref.validate
49 import cherrypy.test.webtest
50 cherrypy_test_webtest = True
52 cherrypy_test_webtest = None
55 import libbe.command.list
58 class ServerApp (libbe.util.wsgi.WSGI_AppObject,
59 libbe.util.wsgi.WSGI_DataObject):
60 """WSGI server for a BE Command invocation over HTTP.
62 RESTful_ WSGI request handler for serving the
63 libbe.command.base.Command._run_remote backend with GET, POST, and
66 This serves all commands from a single, persistant storage
67 instance, usually a VCS-based repository located on the local
70 server_version = "BE-command-server/" + libbe.version.version()
72 def __init__(self, storage=None, notify=False, **kwargs):
73 super(ServerApp, self).__init__(
75 (r'^run/?$', self.run),
78 self.storage = storage
79 self.ui = libbe.command.base.UserInterface()
81 self.http_user_error = 418
84 def run(self, environ, start_response):
85 self.check_login(environ)
86 data = self.post_data(environ)
88 name = data['command']
89 parameters = data['parameters']
91 Class = libbe.command.get_command_class(command_name=name)
92 except libbe.command.UnknownCommand, e:
93 raise libbe.util.wsgi.HandlerError(
94 self.http_user_error, 'UnknownCommand {}'.format(e))
95 command = Class(ui=self.ui)
96 self.ui.setup_command(command)
97 command.status = command._run(**parameters) # already parsed params
98 assert command.status == 0, command.status
99 stdout = self.ui.io.get_stdout()
100 if self.notify: # TODO, check what notify does
101 self._notify(environ, 'run', command)
102 return self.ok_response(environ, start_response, stdout)
104 # handler utility functions
105 def _parse_post(self, post):
106 return yaml.safe_load(post)
108 def check_login(self, environ):
109 user = environ.get('be-auth.user', None)
110 if user is not None: # we're running under AuthenticationApp
111 if environ['REQUEST_METHOD'] == 'POST':
112 # TODO: better detection of commands requiring writes
113 if user == 'guest' or self.storage.is_writeable() == False:
114 raise _Unauthorized() # only non-guests allowed to write
115 # allow read-only commands for all users
117 def _notify(self, environ, command, id, params):
118 message = self._format_notification(environ, command, id, params)
119 self._submit_notification(message)
121 def _format_notification(self, environ, command, id, params):
122 key_length = len('command')
123 for key,value in params:
124 if len(key) > key_length and '\n' not in str(value):
125 key_length = len(key)
128 multi_line_params = []
129 for key,value in [('address', environ.get('REMOTE_ADDR', '-')),
130 ('command', command), ('id', id)]+params:
133 multi_line_params.append((key,v))
135 lines.append('%*.*s %s' % (key_length, key_length, key+':', v))
137 for key,value in multi_line_params:
138 lines.extend(['=== START %s ===' % key, v,
139 '=== STOP %s ===' % key, ''])
141 return '\n'.join(lines)
143 def _submit_notification(self, message):
144 libbe.util.subproc.invoke(self.notify, stdin=message, shell=True)
147 class ServeCommands (libbe.util.wsgi.ServerCommand):
148 """Serve commands over HTTP.
150 This allows you to run local `be` commands interfacing with remote
151 data, transmitting command requests over the network.
153 :class:`~libbe.command.base.Command` wrapper around
157 name = 'serve-commands'
159 def _get_app(self, logger, storage, **kwargs):
161 logger=logger, storage=storage, notify=kwargs.get('notify', False))
163 def _long_help(self):
169 And in another terminal (or after backgrounding the server)::
171 $ be --server http://localhost:8000/ list
173 If you bind your server to a public interface, take a look at the
174 ``--read-only`` option or the combined ``--ssl --auth FILE``
175 options so other people can't mess with your repository. If you do use
176 authentication, you'll need to send in your username and password with,
179 $ be --repo http://username:password@localhost:8000/ list
183 # alias for libbe.command.base.get_command_class()
184 Serve_commands = ServeCommands
188 class ServerAppTestCase (libbe.util.wsgi.WSGITestCase):
190 libbe.util.wsgi.WSGITestCase.setUp(self)
191 self.bd = libbe.bugdir.SimpleBugDir(memory=False)
192 self.app = ServerApp(self.bd.storage, logger=self.logger)
196 libbe.util.wsgi.WSGITestCase.tearDown(self)
198 def test_run_list(self):
199 list = libbe.command.list.List()
200 params = list._parse_options_args()
201 data = yaml.safe_dump({
203 'parameters': params,
205 self.getURL(self.app, '/run', method='POST', data=data)
206 self.failUnless(self.status.startswith('200 '), self.status)
208 ('Content-Type', 'application/octet-stream'
209 ) in self.response_headers,
210 self.response_headers)
211 self.failUnless(self.exc_info == None, self.exc_info)
212 # TODO: integration tests on ServeCommands?
214 unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
215 suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])