1 # Manifold API Python interface
2 from __future__ import print_function
8 from django.contrib import messages
9 from django.shortcuts import redirect
11 from manifold.core.result_value import ResultValue
13 from manifoldresult import ManifoldResult, ManifoldCode, ManifoldException, truncate_result
15 from myslice.settings import config, logger
19 def __init__(self, auth=None, cainfo=None):
26 self.multicall = False
27 self.url = config.manifold_url()
29 # Manifold uses a self signed certificate
30 # https://www.python.org/dev/peps/pep-0476/
31 if hasattr(ssl, '_create_unverified_context'):
32 self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True,
33 context=ssl._create_unverified_context())
35 self.server = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
37 # xxx temporary code for scaffolding a ManifolResult on top of an API that does not expose error info
38 # as of march 2013 we work with an API that essentially either returns the value, or raises
39 # an xmlrpclib.Fault exception with always the same 8002 code
40 # since most of the time we're getting this kind of issues for expired sessions
41 # (looks like sessions are rather short-lived), for now the choice is to map these errors on
42 # a SESSION_EXPIRED code
43 def __getattr__(self, methodName):
45 def func(*args, **kwds):
49 # the message to display
50 auth_message = "<AuthMethod not set in {}>".format(auth) if 'AuthMethod' not in self.auth \
51 else "[session]" if self.auth['AuthMethod'] == 'session' \
52 else "user:{}".format(self.auth['Username']) if self.auth['AuthMethod'] == 'password' \
53 else "anonymous" if self.auth['AuthMethod'] == 'anonymous' \
54 else "[???]" + "{}".format(self.auth)
55 end_message = "MANIFOLD {}( {}( {} ) ) with auth={} to {}"\
57 args[0]['action'] or '',
58 args[0]['object'] or '',
62 args += ({ 'authentication': self.auth },)
63 result = getattr(self.server, methodName)(*args, **kwds)
64 logger.debug("{} executed in {} seconds -> {}"\
65 .format(end_message, time.time() - start, truncate_result(result)))
66 return ResultValue(**result)
68 except Exception as error:
69 print("===== xmlrpc catch-all exception:", error)
71 traceback.print_exc(limit=3)
73 if "Connection refused" in error:
74 raise ManifoldException ( ManifoldResult (code=ManifoldCode.SERVER_UNREACHABLE,
75 output="{} answered {}".format(self.url, error)))
77 logger.error("{} FAILED - executed in {} seconds"\
78 .format(end_message, time.time() - start))
79 logger.error("MANIFOLD {}".format(error))
80 raise ManifoldException ( ManifoldResult (code = ManifoldCode.SERVER_UNREACHABLE,
81 output = "{}".format(error)))
85 def _execute_query(request, query, manifold_api_session_auth):
87 manifold_api = ManifoldAPI(auth = manifold_api_session_auth)
89 logger.debug("MANIFOLD QUERY : {}".format(" ".join(str(query).split())))
90 #logger.debug("MANIFOLD DICT : {}".format(query.to_dict()))
91 result = manifold_api.forward(query.to_dict())
92 if result['code'] == 2:
93 # this is gross; at the very least we need to logout()
94 # but most importantly there is a need to refine that test, since
95 # code==2 does not necessarily mean an expired session
96 # XXX only if we know it is the issue
97 del request.session['manifold']
98 # Flush django session
99 request.session.flush()
100 #raise Exception, 'Error running query: {}'.format(result)
102 if result['code'] == 1:
103 log.warning("MANIFOLD : {}".format(result['description']))
106 #Error running query: {'origin': [0, 'XMLRPCAPI'], 'code': 2, 'description': 'No such session: No row was found for one()', 'traceback': 'Traceback (most recent call last):\n File "/usr/local/lib/python2.7/dist-packages/manifold/core/xmlrpc_api.py", line 68, in xmlrpc_forward\n user = Auth(auth).check()\n File "/usr/local/lib/python2.7/dist-packages/manifold/auth/__init__.py", line 245, in check\n return self.auth_method.check()\n File "/usr/local/lib/python2.7/dist-packages/manifold/auth/__init__.py", line 95, in check\n raise AuthenticationFailure, "No such session: %s" % e\nAuthenticationFailure: No such session: No row was found for one()\n', 'type': 2, 'ts': None, 'value': None}
108 return result['value']
110 def execute_query(request, query):
111 if not 'manifold' in request.session or not 'auth' in request.session['manifold']:
112 request.session.flush()
113 #raise Exception, "User not authenticated"
114 host = request.get_host()
117 manifold_api_session_auth = request.session['manifold']['auth']
119 return _execute_query(request, query, manifold_api_session_auth)
121 def execute_admin_query(request, query):
122 admin_user, admin_password = config.manifold_admin_user_password()
123 if not admin_user or not admin_password:
124 logger.error("""CONFIG: you need to setup admin_user and admin_password in myslice.ini
125 Some functions won't work properly until you do so""")
126 admin_auth = {'AuthMethod': 'password', 'Username': admin_user, 'AuthString': admin_password}
127 return _execute_query(request, query, admin_auth)