--- /dev/null
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# OpenERP, Open Source Management Solution
+# Copyright (C) 2011 OpenERP s.a. (<http://openerp.com>).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+""" WSGI stuffs (proof of concept for now)
+
+This module offers a WSGI interface to OpenERP.
+
+"""
+
+import httplib
+import urllib
+import xmlrpclib
+import StringIO
+
+import logging
+import os
+import signal
+import sys
+import threading
+import time
+
+import openerp
+import openerp.tools.config as config
- import openerp.service.websrv_lib as websrv_lib
++import service.websrv_lib as websrv_lib
+
+def xmlrpc_return(start_response, service, method, params):
+ """ Helper to call a service's method with some params, using a
+ wsgi-supplied ``start_response`` callback."""
+ # This mimics SimpleXMLRPCDispatcher._marshaled_dispatch() for exception
+ # handling.
+ try:
+ result = openerp.netsvc.dispatch_rpc(service, method, params, None) # TODO auth
+ response = xmlrpclib.dumps((result,), methodresponse=1, allow_none=False, encoding=None)
+ except openerp.netsvc.OpenERPDispatcherException, e:
+ fault = xmlrpclib.Fault(openerp.tools.exception_to_unicode(e.exception), e.traceback)
+ response = xmlrpclib.dumps(fault, allow_none=False, encoding=None)
+ except:
+ exc_type, exc_value, exc_tb = sys.exc_info()
+ fault = xmlrpclib.Fault(1, "%s:%s" % (exc_type, exc_value))
+ response = xmlrpclib.dumps(fault, allow_none=None, encoding=None)
+ start_response("200 OK", [('Content-Type','text/xml'), ('Content-Length', str(len(response)))])
+ return [response]
+
+def wsgi_xmlrpc(environ, start_response):
+ """ The main OpenERP WSGI handler."""
+ if environ['REQUEST_METHOD'] == 'POST' and environ['PATH_INFO'].startswith('/openerp/xmlrpc'):
+ length = int(environ['CONTENT_LENGTH'])
+ data = environ['wsgi.input'].read(length)
+
+ params, method = xmlrpclib.loads(data)
+
+ path = environ['PATH_INFO'][len('/openerp/xmlrpc'):]
+ if path.startswith('/'): path = path[1:]
+ if path.endswith('/'): p = path[:-1]
+ path = path.split('/')
+
+ # All routes are hard-coded. Need a way to register addons-supplied handlers.
+
+ # No need for a db segment.
+ if len(path) == 1:
+ service = path[0]
+
+ if service == 'common':
+ if method in ('create_database', 'list', 'server_version'):
+ return xmlrpc_return(start_response, 'db', method, params)
+ else:
+ return xmlrpc_return(start_response, 'common', method, params)
+ # A db segment must be given.
+ elif len(path) == 2:
+ service, db_name = path
+ params = (db_name,) + params
+
+ if service == 'model':
+ return xmlrpc_return(start_response, 'object', method, params)
+ elif service == 'report':
+ return xmlrpc_return(start_response, 'report', method, params)
+
+ # TODO the body has been read, need to raise an exception (not return None).
+
+def legacy_wsgi_xmlrpc(environ, start_response):
+ if environ['REQUEST_METHOD'] == 'POST' and environ['PATH_INFO'].startswith('/xmlrpc/'):
+ length = int(environ['CONTENT_LENGTH'])
+ data = environ['wsgi.input'].read(length)
+ path = environ['PATH_INFO'][len('/xmlrpc/'):] # expected to be one of db, object, ...
+
+ params, method = xmlrpclib.loads(data)
+ return xmlrpc_return(start_response, path, method, params)
+
+def wsgi_jsonrpc(environ, start_response):
+ pass
+
+def wsgi_webdav(environ, start_response):
+ if environ['REQUEST_METHOD'] == 'OPTIONS' and environ['PATH_INFO'] == '*':
+ return return_options(environ, start_response)
+
+ http_dir = websrv_lib.find_http_service(environ['PATH_INFO'])
+ if http_dir:
+ path = environ['PATH_INFO'][len(http_dir.path):]
+ if path.startswith('/'):
+ environ['PATH_INFO'] = path
+ else:
+ environ['PATH_INFO'] = '/' + path
+ return http_to_wsgi(http_dir)(environ, start_response)
+
+def return_options(environ, start_response):
+ # Microsoft specific header, see
+ # http://www.ibm.com/developerworks/rational/library/2089.html
+ if 'Microsoft' in environ.get('User-Agent', ''):
+ option = [('MS-Author-Via', 'DAV')]
+ else:
+ option = []
+ options += [('DAV', '1 2'), ('Allow', 'GET HEAD PROPFIND OPTIONS REPORT')]
+ start_response("200 OK", [('Content-Length', str(0))] + options)
+ return []
+
+def http_to_wsgi(http_dir):
+ """
+ Turn a BaseHTTPRequestHandler into a WSGI entry point.
+
+ Actually the argument is not a bare BaseHTTPRequestHandler but is wrapped
+ (as a class, so it needs to be instanciated) in a HTTPDir.
+
+ This code is adapted from wbsrv_lib.MultiHTTPHandler._handle_one_foreign().
+ It is a temporary solution: the HTTP sub-handlers (in particular the
+ document_webdav addon) have to be WSGIfied.
+ """
+ def wsgi_handler(environ, start_response):
+
+ # Extract from the WSGI environment the necessary data.
+ scheme = environ['wsgi.url_scheme']
+
+ headers = {}
+ for key, value in environ.items():
+ if key.startswith('HTTP_'):
+ key = key[5:].replace('_', '-').title()
+ headers[key] = value
+ if key == 'CONTENT_LENGTH':
+ key = key.replace('_', '-').title()
+ headers[key] = value
+ if environ.get('Content-Type'):
+ headers['Content-Type'] = environ['Content-Type']
+
+ path = urllib.quote(environ.get('PATH_INFO', ''))
+ if environ.get('QUERY_STRING'):
+ path += '?' + environ['QUERY_STRING']
+
+ request_version = 'HTTP/1.1' # TODO
+ request_line = "%s %s %s\n" % (environ['REQUEST_METHOD'], path, request_version)
+
+ class Dummy(object):
+ pass
+
+ # Let's pretend we have a server to hand to the handler.
+ server = Dummy()
+ server.server_name = environ['SERVER_NAME']
+ server.server_port = int(environ['SERVER_PORT'])
+
+ # Initialize the underlying handler and associated auth. provider.
+ con = openerp.service.websrv_lib.noconnection(environ['wsgi.input'])
+ handler = http_dir.instanciate_handler(con, environ['REMOTE_ADDR'], server)
+
+ # Populate the handler as if it is called by a regular HTTP server
+ # and the request is already parsed.
+ handler.wfile = StringIO.StringIO()
+ handler.rfile = environ['wsgi.input']
+ handler.headers = headers
+ handler.command = environ['REQUEST_METHOD']
+ handler.path = path
+ handler.request_version = request_version
+ handler.close_connection = 1
+ handler.raw_requestline = request_line
+ handler.requestline = request_line
+
+ # Handle authentication if there is an auth. provider associated to
+ # the handler.
+ if hasattr(handler, 'auth_provider'):
+ try:
+ handler.auth_provider.checkRequest(handler, path)
+ except websrv_lib.AuthRequiredExc, ae:
+ # Darwin 9.x.x webdav clients will report "HTTP/1.0" to us, while they support (and need) the
+ # authorisation features of HTTP/1.1
+ if request_version != 'HTTP/1.1' and ('Darwin/9.' not in handler.headers.get('User-Agent', '')):
+ start_response("403 Forbidden", [])
+ return []
+ start_response("401 Authorization required", [
+ ('WWW-Authenticate', '%s realm="%s"' % (ae.atype,ae.realm)),
+ # ('Connection', 'keep-alive'),
+ ('Content-Type', 'text/html'),
+ ('Content-Length', 4), # len(self.auth_required_msg)
+ ])
+ return ['Blah'] # self.auth_required_msg
+ except websrv_lib.AuthRejectedExc,e:
+ start_response("403 %s" % (e.args[0],), [])
+ return []
+
+ method_name = 'do_' + handler.command
+
+ # Support the OPTIONS method even when not provided directly by the
+ # handler. TODO I would prefer to remove it and fix the handler if
+ # needed.
+ if not hasattr(handler, method_name):
+ if handler.command == 'OPTIONS':
+ return return_options(environ, start_response)
+ start_response("501 Unsupported method (%r)" % handler.command, [])
+ return []
+
+ # Finally, call the handler's method.
+ try:
+ method = getattr(handler, method_name)
+ method()
+ # The DAV handler buffers its output and provides a _flush()
+ # method.
+ getattr(handler, '_flush', lambda: None)()
+ response = parse_http_response(handler.wfile.getvalue())
+ response_headers = response.getheaders()
+ body = response.read()
+ start_response(str(response.status) + ' ' + response.reason, response_headers)
+ return [body]
+ except (websrv_lib.AuthRejectedExc, websrv_lib.AuthRequiredExc):
+ raise
+ except Exception, e:
+ start_response("500 Internal error", [])
+ return []
+
+ return wsgi_handler
+
+def parse_http_response(s):
+ """ Turn a HTTP response string into a httplib.HTTPResponse object."""
+ class DummySocket(StringIO.StringIO):
+ """
+ This is used to provide a StringIO to httplib.HTTPResponse
+ which, instead of taking a file object, expects a socket and
+ uses its makefile() method.
+ """
+ def makefile(self, *args, **kw):
+ return self
+ response = httplib.HTTPResponse(DummySocket(s))
+ response.begin()
+ return response
+
+# WSGI handlers registered through the register_wsgi_handler() function below.
+module_handlers = []
+
+def register_wsgi_handler(handler):
+ """ Register a WSGI handler.
+
+ Handlers are tried in the order they are added. We might provide a way to
+ register a handler for specific routes later.
+ """
+ module_handlers.append(handler)
+
+def application(environ, start_response):
+ """ WSGI entry point."""
+
+ # Try all handlers until one returns some result (i.e. not None).
+ wsgi_handlers = [
+ wsgi_xmlrpc,
+ wsgi_jsonrpc,
+ legacy_wsgi_xmlrpc,
+ wsgi_webdav
+ ] + module_handlers
+ for handler in wsgi_handlers:
+ result = handler(environ, start_response)
+ if result is None:
+ continue
+ return result
+
+ # We never returned from the loop.
+ response = 'No handler found.\n'
+ start_response('404 Not Found', [('Content-Type', 'text/plain'), ('Content-Length', str(len(response)))])
+ return [response]
+
+# The WSGI server, started by start_server(), stopped by stop_server().
+httpd = None
+
+def serve():
+ """ Serve HTTP requests via werkzeug development server.
+
+ If werkzeug can not be imported, we fall back to wsgiref's simple_server.
+
+ Calling this function is blocking, you might want to call it in its own
+ thread.
+ """
+
+ global httpd
+
+ # TODO Change the xmlrpc_port option to http_port.
+ try:
+ import werkzeug.serving
+ httpd = werkzeug.serving.make_server('0.0.0.0', config['xmlrpc_port'], application, threaded=True)
+ except ImportError, e:
+ import wsgiref.simple_server
+ logging.getLogger('wsgi').warn('Can not import werkzeug, ' 'falling back to wsgiref.')
+ httpd = wsgiref.simple_server.make_server('0.0.0.0', config['xmlrpc_port'], application)
+
+ httpd.serve_forever()
+
+def start_server():
+ """ Call serve() in its own thread.
+
+ The WSGI server can be shutdown with stop_server() below.
+ """
+ threading.Thread(target=openerp.wsgi.serve).start()
+
+def stop_server():
+ """ Initiate the shutdown of the WSGI server.
+
+ The server is supposed to have been started by start_server() above.
+ """
+ if httpd:
+ httpd.shutdown()
+
+# Master process id, can be used for signaling.
+arbiter_pid = None
+
+# Application setup before we can spawn any worker process.
+# This is suitable for e.g. gunicorn's on_starting hook.
+def on_starting(server):
+ global arbiter_pid
+ arbiter_pid = os.getpid() # TODO check if this is true even after replacing the executable
+ config = openerp.tools.config
+ #openerp.tools.cache = kill_workers_cache
+ openerp.netsvc.init_logger()
+ openerp.osv.osv.start_object_proxy()
+ openerp.service.web_services.start_web_services()
+
+# Install our own signal handler on the master process.
+def when_ready(server):
+ # Hijack gunicorn's SIGWINCH handling; we can choose another one.
+ signal.signal(signal.SIGWINCH, make_winch_handler(server))
+
+# Our signal handler will signal a SGIQUIT to all workers.
+def make_winch_handler(server):
+ def handle_winch(sig, fram):
+ server.kill_workers(signal.SIGQUIT) # This is gunicorn specific.
+ return handle_winch
+
+# Kill gracefuly the workers (e.g. because we want to clear their cache).
+# This is done by signaling a SIGWINCH to the master process, so it can be
+# called by the workers themselves.
+def kill_workers():
+ try:
+ os.kill(arbiter_pid, signal.SIGWINCH)
+ except OSError, e:
+ if e.errno == errno.ESRCH: # no such pid
+ return
+ raise
+
+class kill_workers_cache(openerp.tools.ormcache):
+ def clear(self, dbname, *args, **kwargs):
+ kill_workers()
+
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
projects / odoo / odoo.git / commitdiff