4 from StringIO import StringIO
5 from types import StringTypes
6 from copy import deepcopy
10 from sfa.util.sfalogging import 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.rspecs.rspec_converter import RSpecConverter
19 from sfa.rspecs.version_manager import VersionManager
20 from sfa.rspecs.rspec import RSpec
21 from sfa.util.policy import Policy
22 from sfa.util.prefixTree import prefixTree
23 from sfa.util.sfaticket import *
24 from sfa.trust.credential import Credential
25 from sfa.util.threadmanager import ThreadManager
26 import sfa.util.xmlrpcprotocol as xmlrpcprotocol
27 import sfa.plc.peers as peers
28 from sfa.util.version import version_core
29 from sfa.util.callids import Callids
32 def _call_id_supported(api, server):
34 Returns true if server support the optional call_id arg, false otherwise.
36 server_version = api.get_cached_server_version(server)
38 if 'sfa' in server_version:
39 code_tag = server_version['code_tag']
40 code_tag_parts = code_tag.split("-")
42 version_parts = code_tag_parts[0].split(".")
43 major, minor = version_parts[0:2]
44 rev = code_tag_parts[1]
46 if int(minor) > 0 or int(rev) > 20:
50 # we have specialized xmlrpclib.ServerProxy to remember the input url
51 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
52 def get_serverproxy_url (server):
56 logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
57 return server._ServerProxy__host + server._ServerProxy__handler
60 # peers explicitly in aggregates.xml
61 peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
62 if peername != api.hrn])
63 version_manager = VersionManager()
64 ad_rspec_versions = []
65 request_rspec_versions = []
66 for rspec_version in version_manager.versions:
67 if rspec_version in ['*', 'ad']:
68 request_rspec_versions.append(rspec_version.to_dict())
69 if rspec_version in ['*', 'request']:
70 request_rspec_version.append(rspec_version.to_dict())
71 default_rspec_version = version_manager.get_version("sfa 1").to_dict()
73 version_more = {'interface':'slicemgr',
74 'hrn' : xrn.get_hrn(),
75 'urn' : xrn.get_urn(),
77 'request_rspec_versions': request_rspec_versions,
78 'ad_rspec_versions': ad_rspec_versions,
79 'default_ad_rspec': default_rspec_version
81 sm_version=version_core(version_more)
82 # local aggregate if present needs to have localhost resolved
83 if api.hrn in api.aggregates:
84 local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
85 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
88 def drop_slicemgr_stats(rspec):
90 stats_elements = rspec.xml.xpath('//statistics')
91 for node in stats_elements:
92 node.getparent().remove(node)
94 api.logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
96 def add_slicemgr_stat(rspec, callname, aggname, elapsed, status):
98 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
100 stats_tag = stats_tags[0]
102 stats_tag = etree.SubElement(rspec.xml, "statistics", call=callname)
104 etree.SubElement(stats_tag, "aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
106 api.logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
108 def ListResources(api, creds, options, call_id):
109 version_manager = VersionManager()
110 def _ListResources(aggregate, server, credential, opts, call_id):
113 args = [credential, my_opts]
116 if _call_id_supported(api, server):
118 version = api.get_cached_server_version(server)
119 # force ProtoGENI aggregates to give us a v2 RSpec
120 if 'sfa' not in version.keys():
121 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 1')
122 rspec = server.ListResources(*args)
123 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
125 api.logger.warn("ListResources failed at %s: %s" %(server.url, str(e)))
126 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
128 if Callids().already_handled(call_id): return ""
130 # get slice's hrn from options
131 xrn = options.get('geni_slice_urn', '')
132 (hrn, type) = urn_to_hrn(xrn)
133 if 'geni_compressed' in options:
134 del(options['geni_compressed'])
136 # get the rspec's return format from options
137 rspec_version = version_manager.get_version(options.get('rspec_version'))
138 version_string = "rspec_%s" % (rspec_version.to_string())
140 # look in cache first
141 if caching and api.cache and not xrn:
142 rspec = api.cache.get(version_string)
146 # get the callers hrn
147 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
148 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
150 # attempt to use delegated credential first
151 credential = api.getDelegatedCredential(creds)
153 credential = api.getCredential()
154 credentials = [credential]
155 threads = ThreadManager()
156 for aggregate in api.aggregates:
157 # prevent infinite loop. Dont send request back to caller
158 # unless the caller is the aggregate's SM
159 if caller_hrn == aggregate and aggregate != api.hrn:
162 # get the rspec from the aggregate
163 server = api.aggregates[aggregate]
164 threads.run(_ListResources, aggregate, server, credentials, options, call_id)
166 results = threads.get_results()
167 rspec_version = version_manager.get_version(options.get('rspec_version'))
168 rspec = RSpec(version=rspec_version)
169 for result in results:
170 add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"])
171 if result["status"]=="success":
173 rspec.version.merge(result["rspec"])
175 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
178 if caching and api.cache and not xrn:
179 api.cache.add(version_string, rspec.toxml())
184 def CreateSliver(api, xrn, creds, rspec_str, users, call_id):
186 version_manager = VersionManager()
187 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, call_id):
190 # Need to call GetVersion at an aggregate to determine the supported
191 # rspec type/format beofre calling CreateSliver at an Aggregate.
192 server_version = api.get_cached_server_version(server)
193 if 'sfa' not in server_version and 'geni_api' in server_version:
194 # sfa aggregtes support both sfa and pg rspecs, no need to convert
195 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
196 rspec = RSpecConverter.to_pg_rspec(rspec)
197 args = [xrn, credential, rspec, users]
198 if _call_id_supported(api, server):
200 rspec = server.CreateSliver(*args)
201 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
203 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
204 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
206 if Callids().already_handled(call_id): return ""
207 # Validate the RSpec against PlanetLab's schema --disabled for now
208 # The schema used here needs to aggregate the PL and VINI schemas
209 # schema = "/var/www/html/schemas/pl.rng"
210 rspec = RSpec(rspec_str)
213 rspec.validate(schema)
215 # if there is a <statistics> section, the aggregates don't care about it,
217 drop_slicemgr_stats(rspec)
219 # attempt to use delegated credential first
220 credential = api.getDelegatedCredential(creds)
222 credential = api.getCredential()
224 # get the callers hrn
225 hrn, type = urn_to_hrn(xrn)
226 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
227 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
228 threads = ThreadManager()
229 for aggregate in api.aggregates:
230 # prevent infinite loop. Dont send request back to caller
231 # unless the caller is the aggregate's SM
232 if caller_hrn == aggregate and aggregate != api.hrn:
234 server = api.aggregates[aggregate]
235 # Just send entire RSpec to each aggregate
236 threads.run(_CreateSliver, aggregate, server, xrn, credential, rspec.toxml(), users, call_id)
238 results = threads.get_results()
239 result_rspec = RSpec(version=rspec.version)
240 for result in results:
241 add_slicemgr_stat(rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"])
242 if result["status"]=="success":
244 result_rspec.version.merge(result["rspec"])
246 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
249 def RenewSliver(api, xrn, creds, expiration_time, call_id):
250 def _RenewSliver(server, xrn, creds, expiration_time, call_id):
251 server_version = api.get_cached_server_version(server)
252 args = [xrn, creds, expiration_time, call_id]
253 if _call_id_supported(api, server):
255 return server.RenewSliver(*args)
257 if Callids().already_handled(call_id): return True
259 (hrn, type) = urn_to_hrn(xrn)
260 # get the callers hrn
261 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
262 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
264 # attempt to use delegated credential first
265 credential = api.getDelegatedCredential(creds)
267 credential = api.getCredential()
268 threads = ThreadManager()
269 for aggregate in api.aggregates:
270 # prevent infinite loop. Dont send request back to caller
271 # unless the caller is the aggregate's SM
272 if caller_hrn == aggregate and aggregate != api.hrn:
274 server = api.aggregates[aggregate]
275 threads.run(_RenewSliver, server, xrn, [credential], expiration_time, call_id)
277 return reduce (lambda x,y: x and y, threads.get_results() , True)
279 def DeleteSliver(api, xrn, creds, call_id):
280 def _DeleteSliver(server, xrn, creds, call_id):
281 server_version = api.get_cached_server_version(server)
283 if _call_id_supported(api, server):
285 return server.DeleteSliver(*args)
287 if Callids().already_handled(call_id): return ""
288 (hrn, type) = urn_to_hrn(xrn)
289 # get the callers hrn
290 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
291 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
293 # attempt to use delegated credential first
294 credential = api.getDelegatedCredential(creds)
296 credential = api.getCredential()
297 threads = ThreadManager()
298 for aggregate in api.aggregates:
299 # prevent infinite loop. Dont send request back to caller
300 # unless the caller is the aggregate's SM
301 if caller_hrn == aggregate and aggregate != api.hrn:
303 server = api.aggregates[aggregate]
304 threads.run(_DeleteSliver, server, xrn, credential, call_id)
305 threads.get_results()
309 # first draft at a merging SliverStatus
310 def SliverStatus(api, slice_xrn, creds, call_id):
311 def _SliverStatus(server, xrn, creds, call_id):
312 server_version = api.get_cached_server_version(server)
314 if _call_id_supported(api, server):
316 return server.SliverStatus(*args)
318 if Callids().already_handled(call_id): return {}
319 # attempt to use delegated credential first
320 credential = api.getDelegatedCredential(creds)
322 credential = api.getCredential()
323 threads = ThreadManager()
324 for aggregate in api.aggregates:
325 server = api.aggregates[aggregate]
326 threads.run (_SliverStatus, server, slice_xrn, credential, call_id)
327 results = threads.get_results()
329 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
330 results = [ result for result in results if result and result['geni_resources']]
332 # do not try to combine if there's no result
333 if not results : return {}
335 # otherwise let's merge stuff
338 # mmh, it is expected that all results carry the same urn
339 overall['geni_urn'] = results[0]['geni_urn']
340 overall['pl_login'] = results[0]['pl_login']
341 # append all geni_resources
342 overall['geni_resources'] = \
343 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
344 overall['status'] = 'unknown'
345 if overall['geni_resources']:
346 overall['status'] = 'ready'
352 def ListSlices(api, creds, call_id):
353 def _ListSlices(server, creds, call_id):
354 server_version = api.get_cached_server_version(server)
356 if _call_id_supported(api, server):
358 return server.ListSlices(*args)
360 if Callids().already_handled(call_id): return []
362 # look in cache first
363 if caching and api.cache:
364 slices = api.cache.get('slices')
368 # get the callers hrn
369 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
370 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
372 # attempt to use delegated credential first
373 credential = api.getDelegatedCredential(creds)
375 credential = api.getCredential()
376 threads = ThreadManager()
377 # fetch from aggregates
378 for aggregate in api.aggregates:
379 # prevent infinite loop. Dont send request back to caller
380 # unless the caller is the aggregate's SM
381 if caller_hrn == aggregate and aggregate != api.hrn:
383 server = api.aggregates[aggregate]
384 threads.run(_ListSlices, server, credential, call_id)
387 results = threads.get_results()
389 for result in results:
390 slices.extend(result)
393 if caching and api.cache:
394 api.cache.add('slices', slices)
399 def get_ticket(api, xrn, creds, rspec, users):
400 slice_hrn, type = urn_to_hrn(xrn)
401 # get the netspecs contained within the clients rspec
402 aggregate_rspecs = {}
403 tree= etree.parse(StringIO(rspec))
404 elements = tree.findall('./network')
405 for element in elements:
406 aggregate_hrn = element.values()[0]
407 aggregate_rspecs[aggregate_hrn] = rspec
409 # get the callers hrn
410 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
411 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
413 # attempt to use delegated credential first
414 credential = api.getDelegatedCredential(creds)
416 credential = api.getCredential()
417 threads = ThreadManager()
418 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
419 # prevent infinite loop. Dont send request back to caller
420 # unless the caller is the aggregate's SM
421 if caller_hrn == aggregate and aggregate != api.hrn:
424 if aggregate in api.aggregates:
425 server = api.aggregates[aggregate]
427 net_urn = hrn_to_urn(aggregate, 'authority')
428 # we may have a peer that knows about this aggregate
429 for agg in api.aggregates:
430 target_aggs = api.aggregates[agg].get_aggregates(credential, net_urn)
431 if not target_aggs or not 'hrn' in target_aggs[0]:
433 # send the request to this address
434 url = target_aggs[0]['url']
435 server = xmlrpcprotocol.get_server(url, api.key_file, api.cert_file, timeout=30)
436 # aggregate found, no need to keep looping
440 threads.run(server.GetTicket, xrn, credential, aggregate_rspec, users)
442 results = threads.get_results()
444 # gather information from each ticket
449 for result in results:
450 agg_ticket = SfaTicket(string=result)
451 attrs = agg_ticket.get_attributes()
453 object_gid = agg_ticket.get_gid_object()
454 rspecs.append(agg_ticket.get_rspec())
455 initscripts.extend(attrs.get('initscripts', []))
456 slivers.extend(attrs.get('slivers', []))
459 attributes = {'initscripts': initscripts,
461 merged_rspec = merge_rspecs(rspecs)
463 # create a new ticket
464 ticket = SfaTicket(subject = slice_hrn)
465 ticket.set_gid_caller(api.auth.client_gid)
466 ticket.set_issuer(key=api.key, subject=api.hrn)
467 ticket.set_gid_object(object_gid)
468 ticket.set_pubkey(object_gid.get_pubkey())
469 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
470 ticket.set_attributes(attributes)
471 ticket.set_rspec(merged_rspec)
474 return ticket.save_to_string(save_parents=True)
476 def start_slice(api, xrn, creds):
477 hrn, type = urn_to_hrn(xrn)
479 # get the callers hrn
480 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
481 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
483 # attempt to use delegated credential first
484 credential = api.getDelegatedCredential(creds)
486 credential = api.getCredential()
487 threads = ThreadManager()
488 for aggregate in api.aggregates:
489 # prevent infinite loop. Dont send request back to caller
490 # unless the caller is the aggregate's SM
491 if caller_hrn == aggregate and aggregate != api.hrn:
493 server = api.aggregates[aggregate]
494 threads.run(server.Start, xrn, credential)
495 threads.get_results()
498 def stop_slice(api, xrn, creds):
499 hrn, type = urn_to_hrn(xrn)
501 # get the callers hrn
502 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
503 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
505 # attempt to use delegated credential first
506 credential = api.getDelegatedCredential(creds)
508 credential = api.getCredential()
509 threads = ThreadManager()
510 for aggregate in api.aggregates:
511 # prevent infinite loop. Dont send request back to caller
512 # unless the caller is the aggregate's SM
513 if caller_hrn == aggregate and aggregate != api.hrn:
515 server = api.aggregates[aggregate]
516 threads.run(server.Stop, xrn, credential)
517 threads.get_results()
520 def reset_slice(api, xrn):
526 def shutdown(api, xrn, creds):
532 def status(api, xrn, creds):
540 r.parseFile(sys.argv[1])
542 CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
544 if __name__ == "__main__":