4 # this is for django objects only
5 #from django.core import serializers
6 from django.http import HttpResponse, HttpResponseForbidden
8 #from manifoldapi.manifoldquery import ManifoldQuery
9 from manifold.core.query import Query
10 from manifold.core.result_value import ResultValue
11 from manifoldapi import ManifoldAPI
12 from manifoldresult import ManifoldException
13 from manifold.util.log import Log
15 from unfold.sessioncache import SessionCache
17 from myslice.settings import config, logger
25 # pretend the server only returns - empty lists to 'get' requests - this is to mimick
26 # misconfigurations or expired credentials or similar corner case situations
30 # this view is what the javascript talks to when it sends a query
34 # static/js/manifold.js
35 def proxy (request,format):
36 """the view associated with /manifold/proxy/ with the query passed using POST"""
39 if request.method != 'POST':
40 logger.error("MANIFOLDPROXY unexpected method {} -- exiting".format(request.method))
41 return HttpResponse ({"ret":0}, content_type="application/json")
42 # we only support json for now
43 # if needed in the future we should probably cater for
44 # format_in : how is the query encoded in POST
45 # format_out: how to serve the results
47 logger.error("MANIFOLDPROXY unexpected format {} -- exiting".format(format))
48 return HttpResponse ({"ret":0}, content_type="application/json")
50 # translate incoming POST request into a query object
51 #logger.debug("MANIFOLDPROXY request.POST {}".format(request.POST))
53 manifold_query = Query()
54 #manifold_query = ManifoldQuery()
55 manifold_query.fill_from_POST(request.POST)
56 # retrieve session for request
58 # We allow some requests to use the ADMIN user account
59 if (manifold_query.get_from() == 'local:user' and manifold_query.get_action() == 'create') \
60 or (manifold_query.get_from() == 'local:platform' and manifold_query.get_action() == 'get'):
61 admin_user, admin_password = config.manifold_admin_user_password()
62 manifold_api_session_auth = {'AuthMethod': 'password', 'Username': admin_user, 'AuthString': admin_password}
64 manifold_api_session_auth = SessionCache().get_auth(request)
65 if not manifold_api_session_auth:
66 return HttpResponse (json.dumps({'code':0,'value':[]}), content_type="application/json")
68 if debug_empty and manifold_query.action.lower()=='get':
69 return HttpResponse (json.dumps({'code':0,'value':[]}), content_type="application/json")
72 manifold_api= ManifoldAPI(auth=manifold_api_session_auth)
74 # for the benefit of the python code, manifoldAPI raises an exception if something is wrong
75 # however in this case we want to propagate the complete manifold result to the js world
77 result = manifold_api.forward(manifold_query.to_dict())
80 if 'description' in result and result['description'] \
81 and isinstance(result['description'], (tuple, list, set, frozenset)):
82 result [ 'description' ] = [ ResultValue.to_html (x) for x in result['description'] ]
87 # resource reservation
88 if (manifold_query.action.lower() == 'update') :
89 logger.debug(result['value'][0])
90 if 'resource' in result['value'][0] :
91 for resource in result['value'][0]['resource'] :
92 activity.slice.resource(request,
94 'slice' : result['value'][0]['slice_hrn'],
95 'resource' : resource['hostname'],
96 'resource_type' : resource['type'],
97 'facility' : resource['facility_name'],
98 'testbed' : resource['testbed_name']
102 json_answer=json.dumps(result)
104 return HttpResponse (json_answer, content_type="application/json")
106 except Exception as e:
107 logger.error("MANIFOLDPROXY {}".format(e))
109 logger.error(traceback.format_exc())
110 return HttpResponse ({"ret":0}, content_type="application/json")
113 # see CSRF_FAILURE_VIEW in settings.py
114 # the purpose of redefining this was to display the failure reason somehow
115 # this however turns out disappointing/not very informative
116 failure_answer=[ "csrf_failure" ]
117 def csrf_failure(request, reason=""):
118 logger.error("CSRF failure with reason '{}'".format(reason))
119 return HttpResponseForbidden (json.dumps (failure_answer), content_type="application/json")