4 from StringIO import StringIO
5 from types import StringTypes
6 from copy import deepcopy
10 from sfa.util.sfalogging import sfa_logger
11 from sfa.util.rspecHelper import merge_rspecs
12 from sfa.util.xrn import Xrn, urn_to_hrn, hrn_to_urn
13 from sfa.util.plxrn import hrn_to_pl_slicename
14 from sfa.util.rspec import *
15 from sfa.util.specdict import *
16 from sfa.util.faults import *
17 from sfa.util.record import SfaRecord
18 from sfa.util.policy import Policy
19 from sfa.util.prefixTree import prefixTree
20 from sfa.util.sfaticket import *
21 from sfa.trust.credential import Credential
22 from sfa.util.threadmanager import ThreadManager
23 import sfa.util.xmlrpcprotocol as xmlrpcprotocol
24 import sfa.plc.peers as peers
25 from sfa.util.version import version_core
26 from sfa.util.callids import Callids
28 # XX FIX ME: should merge result from multiple aggregates instead of
29 # calling aggregate implementation
30 from sfa.managers.aggregate_manager_pl import slice_status
32 # we have specialized xmlrpclib.ServerProxy to remember the input url
33 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
34 def get_serverproxy_url (server):
38 sfa_logger().warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
39 return server._ServerProxy__host + server._ServerProxy__handler
42 # peers explicitly in aggregates.xml
43 peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
44 if peername != api.hrn])
46 sm_version=version_core({'interface':'slicemgr',
47 'hrn' : xrn.get_hrn(),
48 'urn' : xrn.get_urn(),
51 # local aggregate if present needs to have localhost resolved
52 if api.hrn in api.aggregates:
53 local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
54 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
57 def create_slice(api, xrn, creds, rspec, users, call_id):
59 if Callids().already_handled(call_id): return ""
61 hrn, type = urn_to_hrn(xrn)
63 # Validate the RSpec against PlanetLab's schema --disabled for now
64 # The schema used here needs to aggregate the PL and VINI schemas
65 # schema = "/var/www/html/schemas/pl.rng"
69 tree = etree.parse(StringIO(rspec))
70 except etree.XMLSyntaxError:
71 message = str(sys.exc_info()[1])
72 raise InvalidRSpec(message)
74 relaxng_doc = etree.parse(schema)
75 relaxng = etree.RelaxNG(relaxng_doc)
78 error = relaxng.error_log.last_error
79 message = "%s (line %s)" % (error.message, error.line)
80 raise InvalidRSpec(message)
83 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
84 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
86 # attempt to use delegated credential first
87 credential = api.getDelegatedCredential(creds)
89 credential = api.getCredential()
90 threads = ThreadManager()
91 for aggregate in api.aggregates:
92 # prevent infinite loop. Dont send request back to caller
93 # unless the caller is the aggregate's SM
94 if caller_hrn == aggregate and aggregate != api.hrn:
97 # Just send entire RSpec to each aggregate
98 server = api.aggregates[aggregate]
99 threads.run(server.CreateSliver, xrn, credential, rspec, users, call_id)
101 results = threads.get_results()
102 merged_rspec = merge_rspecs(results)
105 def renew_slice(api, xrn, creds, expiration_time):
106 hrn, type = urn_to_hrn(xrn)
108 # get the callers hrn
109 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
110 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
112 # attempt to use delegated credential first
113 credential = api.getDelegatedCredential(creds)
115 credential = api.getCredential()
116 threads = ThreadManager()
117 for aggregate in api.aggregates:
118 # prevent infinite loop. Dont send request back to caller
119 # unless the caller is the aggregate's SM
120 if caller_hrn == aggregate and aggregate != api.hrn:
123 server = api.aggregates[aggregate]
124 threads.run(server.RenewSliver, xrn, [credential], expiration_time)
125 threads.get_results()
128 def get_ticket(api, xrn, creds, rspec, users):
129 slice_hrn, type = urn_to_hrn(xrn)
130 # get the netspecs contained within the clients rspec
131 aggregate_rspecs = {}
132 tree= etree.parse(StringIO(rspec))
133 elements = tree.findall('./network')
134 for element in elements:
135 aggregate_hrn = element.values()[0]
136 aggregate_rspecs[aggregate_hrn] = rspec
138 # get the callers hrn
139 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
140 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
142 # attempt to use delegated credential first
143 credential = api.getDelegatedCredential(creds)
145 credential = api.getCredential()
146 threads = ThreadManager()
147 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
148 # prevent infinite loop. Dont send request back to caller
149 # unless the caller is the aggregate's SM
150 if caller_hrn == aggregate and aggregate != api.hrn:
153 if aggregate in api.aggregates:
154 server = api.aggregates[aggregate]
156 net_urn = hrn_to_urn(aggregate, 'authority')
157 # we may have a peer that knows about this aggregate
158 for agg in api.aggregates:
159 target_aggs = api.aggregates[agg].get_aggregates(credential, net_urn)
160 if not target_aggs or not 'hrn' in target_aggs[0]:
162 # send the request to this address
163 url = target_aggs[0]['url']
164 server = xmlrpcprotocol.get_server(url, api.key_file, api.cert_file)
165 # aggregate found, no need to keep looping
169 threads.run(server.GetTicket, xrn, credential, aggregate_rspec, users)
171 results = threads.get_results()
173 # gather information from each ticket
178 for result in results:
179 agg_ticket = SfaTicket(string=result)
180 attrs = agg_ticket.get_attributes()
182 object_gid = agg_ticket.get_gid_object()
183 rspecs.append(agg_ticket.get_rspec())
184 initscripts.extend(attrs.get('initscripts', []))
185 slivers.extend(attrs.get('slivers', []))
188 attributes = {'initscripts': initscripts,
190 merged_rspec = merge_rspecs(rspecs)
192 # create a new ticket
193 ticket = SfaTicket(subject = slice_hrn)
194 ticket.set_gid_caller(api.auth.client_gid)
195 ticket.set_issuer(key=api.key, subject=api.hrn)
196 ticket.set_gid_object(object_gid)
197 ticket.set_pubkey(object_gid.get_pubkey())
198 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
199 ticket.set_attributes(attributes)
200 ticket.set_rspec(merged_rspec)
203 return ticket.save_to_string(save_parents=True)
206 def delete_slice(api, xrn, creds):
207 hrn, type = urn_to_hrn(xrn)
209 # get the callers hrn
210 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
211 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
213 # attempt to use delegated credential first
214 credential = api.getDelegatedCredential(creds)
216 credential = api.getCredential()
217 threads = ThreadManager()
218 for aggregate in api.aggregates:
219 # prevent infinite loop. Dont send request back to caller
220 # unless the caller is the aggregate's SM
221 if caller_hrn == aggregate and aggregate != api.hrn:
223 server = api.aggregates[aggregate]
224 threads.run(server.DeleteSliver, xrn, credential)
225 threads.get_results()
228 def start_slice(api, xrn, creds):
229 hrn, type = urn_to_hrn(xrn)
231 # get the callers hrn
232 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
233 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
235 # attempt to use delegated credential first
236 credential = api.getDelegatedCredential(creds)
238 credential = api.getCredential()
239 threads = ThreadManager()
240 for aggregate in api.aggregates:
241 # prevent infinite loop. Dont send request back to caller
242 # unless the caller is the aggregate's SM
243 if caller_hrn == aggregate and aggregate != api.hrn:
245 server = api.aggregates[aggregate]
246 threads.run(server.Start, xrn, credential)
247 threads.get_results()
250 def stop_slice(api, xrn, creds):
251 hrn, type = urn_to_hrn(xrn)
253 # get the callers hrn
254 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
255 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
257 # attempt to use delegated credential first
258 credential = api.getDelegatedCredential(creds)
260 credential = api.getCredential()
261 threads = ThreadManager()
262 for aggregate in api.aggregates:
263 # prevent infinite loop. Dont send request back to caller
264 # unless the caller is the aggregate's SM
265 if caller_hrn == aggregate and aggregate != api.hrn:
267 server = api.aggregates[aggregate]
268 threads.run(server.Stop, xrn, credential)
269 threads.get_results()
272 def reset_slice(api, xrn):
278 def shutdown(api, xrn, creds):
284 def status(api, xrn, creds):
290 def get_slices(api, creds):
292 # look in cache first
294 slices = api.cache.get('slices')
298 # get the callers hrn
299 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
300 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
302 # attempt to use delegated credential first
303 credential = api.getDelegatedCredential(creds)
305 credential = api.getCredential()
306 threads = ThreadManager()
307 # fetch from aggregates
308 for aggregate in api.aggregates:
309 # prevent infinite loop. Dont send request back to caller
310 # unless the caller is the aggregate's SM
311 if caller_hrn == aggregate and aggregate != api.hrn:
313 server = api.aggregates[aggregate]
314 threads.run(server.ListSlices, credential)
317 results = threads.get_results()
319 for result in results:
320 slices.extend(result)
324 api.cache.add('slices', slices)
329 # Thierry : caching at the slicemgr level makes sense to some extent
332 def ListResources(api, creds, options, call_id):
334 if Callids().already_handled(call_id):
335 api.logger.info("%d received ListResources with known call_id %s"%(api.interface,call_id))
338 # get slice's hrn from options
339 xrn = options.get('geni_slice_urn', '')
340 (hrn, type) = urn_to_hrn(xrn)
342 # get hrn of the original caller
343 origin_hrn = options.get('origin_hrn', None)
345 if isinstance(creds, list):
346 origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn()
348 origin_hrn = Credential(string=creds).get_gid_caller().get_hrn()
350 # look in cache first
351 if caching and api.cache and not xrn:
352 rspec = api.cache.get('nodes')
356 # get the callers hrn
357 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
358 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
360 # attempt to use delegated credential first
361 credential = api.getDelegatedCredential(creds)
363 credential = api.getCredential()
364 threads = ThreadManager()
365 for aggregate in api.aggregates:
366 # prevent infinite loop. Dont send request back to caller
367 # unless the caller is the aggregate's SM
368 if caller_hrn == aggregate and aggregate != api.hrn:
370 # get the rspec from the aggregate
371 server = api.aggregates[aggregate]
372 my_opts = copy(options)
373 my_opts['geni_compressed'] = False
374 threads.run(server.ListResources, credential, my_opts, call_id)
375 #threads.run(server.get_resources, cred, xrn, origin_hrn)
377 results = threads.get_results()
378 merged_rspec = merge_rspecs(results)
381 if caching and api.cache and not xrn:
382 api.cache.add('nodes', merged_rspec)
388 r.parseFile(sys.argv[1])
390 create_slice(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
392 if __name__ == "__main__":