1 # -*- coding: utf-8 -*-
2 ##############################################################################
4 # OpenERP, Open Source Management Solution
5 # Copyright (C) 2011 OpenERP s.a. (<http://openerp.com>).
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU Affero General Public License as
9 # published by the Free Software Foundation, either version 3 of the
10 # License, or (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU Affero General Public License for more details.
17 # You should have received a copy of the GNU Affero General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 ##############################################################################
22 """ WSGI stuffs (proof of concept for now)
24 This module offers a WSGI interface to OpenERP.
28 from wsgiref.simple_server import make_server
29 from SimpleXMLRPCServer import SimpleXMLRPCDispatcher
41 import openerp.tools.config as config
42 import openerp.service.websrv_lib as websrv_lib
44 def xmlrpc_return(start_response, service, method, params):
45 """ Helper to call a service's method with some params, using a
46 wsgi-supplied ``start_response`` callback."""
47 # This mimics SimpleXMLRPCDispatcher._marshaled_dispatch() for exception
50 result = openerp.netsvc.dispatch_rpc(service, method, params, None) # TODO auth
51 response = xmlrpclib.dumps((result,), methodresponse=1, allow_none=False, encoding=None)
52 except openerp.netsvc.OpenERPDispatcherException, e:
53 fault = xmlrpclib.Fault(openerp.tools.exception_to_unicode(e.exception), e.traceback)
54 response = xmlrpclib.dumps(fault, allow_none=False, encoding=None)
56 exc_type, exc_value, exc_tb = sys.exc_info()
57 fault = xmlrpclib.Fault(1, "%s:%s" % (exc_type, exc_value))
58 response = xmlrpclib.dumps(fault, allow_none=None, encoding=None)
59 start_response("200 OK", [('Content-Type','text/xml'), ('Content-Length', str(len(response)))])
62 def wsgi_xmlrpc(environ, start_response):
63 """ The main OpenERP WSGI handler."""
64 if environ['REQUEST_METHOD'] == 'POST' and environ['PATH_INFO'].startswith('/openerp/xmlrpc'):
65 length = int(environ['CONTENT_LENGTH'])
66 data = environ['wsgi.input'].read(length)
68 params, method = xmlrpclib.loads(data)
70 path = environ['PATH_INFO'][len('/openerp/xmlrpc'):]
71 if path.startswith('/'): path = path[1:]
72 if path.endswith('/'): p = path[:-1]
73 path = path.split('/')
75 # All routes are hard-coded. Need a way to register addons-supplied handlers.
77 # No need for a db segment.
81 if service == 'common':
82 if method in ('create_database', 'list', 'server_version'):
83 return xmlrpc_return(start_response, 'db', method, params)
85 return xmlrpc_return(start_response, 'common', method, params)
86 # A db segment must be given.
88 service, db_name = path
89 params = (db_name,) + params
91 if service == 'model':
92 return xmlrpc_return(start_response, 'object', method, params)
93 elif service == 'report':
94 return xmlrpc_return(start_response, 'report', method, params)
96 # TODO the body has been read, need to raise an exception (not return None).
98 def legacy_wsgi_xmlrpc(environ, start_response):
99 if environ['REQUEST_METHOD'] == 'POST' and environ['PATH_INFO'].startswith('/xmlrpc/'):
100 length = int(environ['CONTENT_LENGTH'])
101 data = environ['wsgi.input'].read(length)
102 path = environ['PATH_INFO'][len('/xmlrpc/'):] # expected to be one of db, object, ...
104 params, method = xmlrpclib.loads(data)
105 return xmlrpc_return(start_response, path, method, params)
107 def wsgi_jsonrpc(environ, start_response):
110 def wsgi_modules(environ, start_response):
111 """ WSGI handler dispatching to addons-provided entry points."""
114 def wsgi_webdav(environ, start_response):
115 if environ['REQUEST_METHOD'] == 'OPTIONS' and environ['PATH_INFO'] == '*':
116 return return_options(start_response)
118 # Make sure the addons are loaded in the registry, so they have a chance
119 # to register themselves in the 'service' layer.
120 openerp.pooler.get_db_and_pool('xx', update_module=[], pooljobs=False)
122 http_dir = websrv_lib.find_http_service(environ['PATH_INFO'])
124 environ['PATH_INFO'] = '/' + environ['PATH_INFO'][len(http_dir.path):]
125 return http_to_wsgi(http_dir)(environ, start_response)
127 def return_options(start_response):
128 # TODO Microsoft specifi header, see websrv_lib do_OPTIONS
129 options = [('DAV', '1 2'), ('Allow', 'GET HEAD PROPFIND OPTIONS REPORT')]
130 start_response("200 OK", [('Content-Length', str(0))] + options)
133 def http_to_wsgi(http_dir):
135 Turn BaseHTTPRequestHandler into a WSGI entry point.
137 Actually the argument is not a bare BaseHTTPRequestHandler but is wrapped
138 (as a class, so it needs to be instanciated) in a HTTPDir.
140 This code is adapted from wbsrv_lib.MultiHTTPHandler._handle_one_foreign().
141 It is a temporary solution: the HTTP sub-handlers (in particular the
142 document_webdav addon) have to be WSGIfied.
144 def wsgi_handler(environ, start_response):
146 # Extract from the WSGI environment the necessary data.
147 scheme = environ['wsgi.url_scheme']
150 for key, value in environ.items():
151 if key.startswith('HTTP_'):
152 key = key[5:].replace('_', '-').title()
154 if key == 'CONTENT_LENGTH':
155 key = key.replace('_', '-').title()
157 if environ.get('Content-Type'):
158 headers['Content-Type'] = environ['Content-Type']
160 path = urllib.quote(environ.get('PATH_INFO', ''))
161 if environ.get('QUERY_STRING'):
162 path += '?' + environ['QUERY_STRING']
164 request_version = 'HTTP/1.1' # TODO
165 request_line = "%s %s %s\n" % (environ['REQUEST_METHOD'], path, request_version)
170 # Let's pretend we have a server to hand to the handler.
172 server.server_name = environ['SERVER_NAME']
173 server.server_port = int(environ['SERVER_PORT'])
174 con = openerp.service.websrv_lib.noconnection(environ['gunicorn.socket']) # None TODO
176 # Initialize the underlying handler and associated auth. provider.
177 handler = http_dir.instanciate_handler(openerp.service.websrv_lib.noconnection(con), environ['REMOTE_ADDR'], server)
179 # Populate the handler as if it is called by a regular HTTP server
180 # and the request is already parsed.
181 handler.wfile = StringIO.StringIO()
182 handler.rfile = environ['wsgi.input']
183 handler.headers = headers
184 handler.command = environ['REQUEST_METHOD']
186 handler.request_version = request_version
187 handler.close_connection = 1
188 handler.raw_requestline = request_line
189 handler.requestline = request_line
191 # Handle authentication if there is an auth. provider associated to
193 if hasattr(handler, 'auth_provider'):
195 handler.auth_provider.checkRequest(handler, path)
196 except websrv_lib.AuthRequiredExc, ae:
197 # Darwin 9.x.x webdav clients will report "HTTP/1.0" to us, while they support (and need) the
198 # authorisation features of HTTP/1.1
199 if request_version != 'HTTP/1.1' and ('Darwin/9.' not in handler.headers.get('User-Agent', '')):
200 print 'self.log_error("Cannot require auth at %s", self.request_version)'
201 start_response("403 Forbidden", [])
203 start_response("401 Authorization required", [
204 ('WWW-Authenticate', '%s realm="%s"' % (ae.atype,ae.realm)),
205 # ('Connection', 'keep-alive'),
206 ('Content-Type', 'text/html'),
207 ('Content-Length', 4), # len(self.auth_required_msg)
209 return ['Blah'] # self.auth_required_msg
210 except websrv_lib.AuthRejectedExc,e:
211 print '("Rejected auth: %s" % e.args[0])'
212 start_response("403 %s" % (e.args[0],))
215 method_name = 'do_' + handler.command
217 # Support the OPTIONS method even when not provided directly by the
218 # handler. TODO I would prefer to remove it and fix the handler if
220 if not hasattr(handler, method_name):
221 if handler.command == 'OPTIONS':
222 return return_options(start_response)
223 start_response("501 Unsupported method (%r)" % handler.command)
226 # Finally, call the handler's method.
228 method = getattr(handler, method_name)
230 # The DAV handler buffers its output and provides a _flush()
232 getattr(handler, '_flush', lambda: None)()
233 response = parse_http_response(handler.wfile.getvalue())
234 response_headers = response.getheaders()
235 body = response.read()
236 start_response(str(response.status) + ' ' + response.reason, response_headers)
238 except (websrv_lib.AuthRejectedExc, websrv_lib.AuthRequiredExc):
241 start_response("500 Internal error", [])
246 def parse_http_response(s):
247 """ Turn a HTTP response string into a httplib.HTTPResponse object."""
248 class DummySocket(StringIO.StringIO):
250 This is used to provide a StringIO to httplib.HTTPResponse
251 which, instead of taking a file object, expects a socket and
252 uses its makefile() method.
254 def makefile(self, *args, **kw):
256 response = httplib.HTTPResponse(DummySocket(s))
260 # WSGI handlers provided by modules loaded with the --load command-line option.
263 def register_wsgi_handler(handler):
264 """ Register a WSGI handler.
266 Handlers are tried in the order they are added. We might provide a way to
267 register a handler for specific routes later.
269 module_handlers.append(handler)
271 def application(environ, start_response):
272 """ WSGI entry point."""
274 # Try all handlers until one returns some result (i.e. not None).
282 for handler in wsgi_handlers:
283 result = handler(environ, start_response)
288 # We never returned from the loop. Needs something else than 200 OK.
289 response = 'No handler found.\n'
290 start_response('200 OK', [('Content-Type', 'text/plain'), ('Content-Length', str(len(response)))])
294 """ Serve XMLRPC requests via wsgiref's simple_server.
296 Blocking, should probably be called in its own process.
298 httpd = make_server('localhost', config['xmlrpc_port'], application)
299 httpd.serve_forever()
301 # Master process id, can be used for signaling.
304 # Application setup before we can spawn any worker process.
305 # This is suitable for e.g. gunicorn's on_starting hook.
306 def on_starting(server):
308 arbiter_pid = os.getpid() # TODO check if this is true even after replacing the executable
309 config = openerp.tools.config
310 config['addons_path'] = '/home/openerp/repos/addons/trunk-xmlrpc' # need a config file
311 #config['log_level'] = 10 # debug
312 #openerp.tools.cache = kill_workers_cache
313 openerp.netsvc.init_logger()
314 openerp.osv.osv.start_object_proxy()
315 openerp.service.web_services.start_web_services()
318 def test_in_thread():
322 print ">>>> test thread"
323 cr = openerp.sql_db.db_connect('xx').cursor()
324 module_name = 'document_webdav'
325 fp = openerp.tools.file_open('/home/openerp/repos/addons/trunk-xmlrpc/document_webdav/test/webdav_test1.yml')
326 openerp.tools.convert_yaml_import(cr, module_name, fp, {}, 'update', True)
328 print "<<<< test thread"
330 threading.Thread(target=f).start()
332 # Install our own signal handler on the master process.
333 def when_ready(server):
334 # Hijack gunicorn's SIGWINCH handling; we can choose another one.
335 signal.signal(signal.SIGWINCH, make_winch_handler(server))
337 # Our signal handler will signal a SGIQUIT to all workers.
338 def make_winch_handler(server):
339 def handle_winch(sig, fram):
340 server.kill_workers(signal.SIGQUIT) # This is gunicorn specific.
343 # Kill gracefuly the workers (e.g. because we want to clear their cache).
344 # This is done by signaling a SIGWINCH to the master process, so it can be
345 # called by the workers themselves.
348 os.kill(arbiter_pid, signal.SIGWINCH)
350 if e.errno == errno.ESRCH: # no such pid
354 class kill_workers_cache(openerp.tools.ormcache):
355 def clear(self, dbname, *args, **kwargs):
358 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: