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.client.client_helper import sfa_to_pg_users_arg
20 from sfa.rspecs.version_manager import VersionManager
21 from sfa.rspecs.rspec import RSpec
22 from sfa.util.policy import Policy
23 from sfa.util.prefixTree import prefixTree
24 from sfa.util.sfaticket import *
25 from sfa.trust.credential import Credential
26 from sfa.util.threadmanager import ThreadManager
27 import sfa.util.xmlrpcprotocol as xmlrpcprotocol
28 import sfa.plc.peers as peers
29 from sfa.util.version import version_core
30 from sfa.util.callids import Callids
33 def _call_id_supported(api, server):
35 Returns true if server support the optional call_id arg, false otherwise.
37 server_version = api.get_cached_server_version(server)
39 if 'sfa' in server_version:
40 code_tag = server_version['code_tag']
41 code_tag_parts = code_tag.split("-")
43 version_parts = code_tag_parts[0].split(".")
44 major, minor = version_parts[0:2]
45 rev = code_tag_parts[1]
47 if int(minor) > 0 or int(rev) > 20:
51 # we have specialized xmlrpclib.ServerProxy to remember the input url
52 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
53 def get_serverproxy_url (server):
55 return server.get_url()
57 logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
58 return server._ServerProxy__host + server._ServerProxy__handler
61 # peers explicitly in aggregates.xml
62 peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
63 if peername != api.hrn])
64 version_manager = VersionManager()
65 ad_rspec_versions = []
66 request_rspec_versions = []
67 for rspec_version in version_manager.versions:
68 if rspec_version.content_type in ['*', 'ad']:
69 ad_rspec_versions.append(rspec_version.to_dict())
70 if rspec_version.content_type in ['*', 'request']:
71 request_rspec_versions.append(rspec_version.to_dict())
72 default_rspec_version = version_manager.get_version("sfa 1").to_dict()
73 xrn=Xrn(api.hrn, 'authority+sa')
74 version_more = {'interface':'slicemgr',
75 'hrn' : xrn.get_hrn(),
76 'urn' : xrn.get_urn(),
78 'request_rspec_versions': request_rspec_versions,
79 'ad_rspec_versions': ad_rspec_versions,
80 'default_ad_rspec': default_rspec_version
82 sm_version=version_core(version_more)
83 # local aggregate if present needs to have localhost resolved
84 if api.hrn in api.aggregates:
85 local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
86 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
89 def drop_slicemgr_stats(rspec):
91 stats_elements = rspec.xml.xpath('//statistics')
92 for node in stats_elements:
93 node.getparent().remove(node)
95 api.logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
97 def add_slicemgr_stat(rspec, callname, aggname, elapsed, status):
99 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
101 stats_tag = stats_tags[0]
103 stats_tag = etree.SubElement(rspec.xml.root, "statistics", call=callname)
105 etree.SubElement(stats_tag, "aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
107 api.logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
109 def ListResources(api, creds, options, call_id):
110 version_manager = VersionManager()
111 def _ListResources(aggregate, server, credential, opts, call_id):
114 args = [credential, my_opts]
117 if _call_id_supported(api, server):
119 version = api.get_cached_server_version(server)
120 # force ProtoGENI aggregates to give us a v2 RSpec
121 if 'sfa' not in version.keys():
122 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
123 rspec = server.ListResources(*args)
124 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
126 api.logger.log_exc("ListResources failed at %s" %(server.url))
127 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
129 if Callids().already_handled(call_id): return ""
131 # get slice's hrn from options
132 xrn = options.get('geni_slice_urn', '')
133 (hrn, type) = urn_to_hrn(xrn)
134 if 'geni_compressed' in options:
135 del(options['geni_compressed'])
137 # get the rspec's return format from options
138 rspec_version = version_manager.get_version(options.get('rspec_version'))
139 version_string = "rspec_%s" % (rspec_version.to_string())
141 # look in cache first
142 if caching and api.cache and not xrn:
143 rspec = api.cache.get(version_string)
147 # get the callers hrn
148 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
149 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
151 # attempt to use delegated credential first
152 cred = api.getDelegatedCredential(creds)
154 cred = api.getCredential()
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 interface = api.aggregates[aggregate]
164 server = api.get_server(interface, cred)
165 threads.run(_ListResources, aggregate, server, [cred], options, call_id)
168 results = threads.get_results()
169 rspec_version = version_manager.get_version(options.get('rspec_version'))
171 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
173 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
174 rspec = RSpec(version=result_version)
175 for result in results:
176 add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"])
177 if result["status"]=="success":
179 rspec.version.merge(result["rspec"])
181 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
184 if caching and api.cache and not xrn:
185 api.cache.add(version_string, rspec.toxml())
190 def CreateSliver(api, xrn, creds, rspec_str, users, call_id):
192 version_manager = VersionManager()
193 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, call_id):
196 # Need to call GetVersion at an aggregate to determine the supported
197 # rspec type/format beofre calling CreateSliver at an Aggregate.
198 server_version = api.get_cached_server_version(server)
199 requested_users = users
200 if 'sfa' not in server_version and 'geni_api' in server_version:
201 # sfa aggregtes support both sfa and pg rspecs, no need to convert
202 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
203 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
204 filter = {'component_manager_id': server_version['urn']}
206 rspec = rspec.toxml()
207 requested_users = sfa_to_pg_users_arg(users)
208 args = [xrn, credential, rspec, requested_users]
209 if _call_id_supported(api, server):
211 rspec = server.CreateSliver(*args)
212 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
214 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
215 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
217 if Callids().already_handled(call_id): return ""
218 # Validate the RSpec against PlanetLab's schema --disabled for now
219 # The schema used here needs to aggregate the PL and VINI schemas
220 # schema = "/var/www/html/schemas/pl.rng"
221 rspec = RSpec(rspec_str)
224 rspec.validate(schema)
226 # if there is a <statistics> section, the aggregates don't care about it,
228 drop_slicemgr_stats(rspec)
230 # attempt to use delegated credential first
231 cred = api.getDelegatedCredential(creds)
233 cred = api.getCredential()
235 # get the callers hrn
236 hrn, type = urn_to_hrn(xrn)
237 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
238 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
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 interface = api.aggregates[aggregate]
246 server = api.get_server(interface, cred)
247 # Just send entire RSpec to each aggregate
248 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id)
250 results = threads.get_results()
251 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
252 result_rspec = RSpec(version=manifest_version)
253 for result in results:
254 add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"])
255 if result["status"]=="success":
257 result_rspec.version.merge(result["rspec"])
259 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
260 return result_rspec.toxml()
262 def RenewSliver(api, xrn, creds, expiration_time, call_id):
263 def _RenewSliver(server, xrn, creds, expiration_time, call_id):
264 server_version = api.get_cached_server_version(server)
265 args = [xrn, creds, expiration_time, call_id]
266 if _call_id_supported(api, server):
268 return server.RenewSliver(*args)
270 if Callids().already_handled(call_id): return True
272 (hrn, type) = urn_to_hrn(xrn)
273 # get the callers hrn
274 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
275 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
277 # attempt to use delegated credential first
278 cred = api.getDelegatedCredential(creds)
280 cred = api.getCredential()
281 threads = ThreadManager()
282 for aggregate in api.aggregates:
283 # prevent infinite loop. Dont send request back to caller
284 # unless the caller is the aggregate's SM
285 if caller_hrn == aggregate and aggregate != api.hrn:
287 interface = api.aggregates[aggregate]
288 server = api.get_server(interface, cred)
289 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id)
291 return reduce (lambda x,y: x and y, threads.get_results() , True)
293 def DeleteSliver(api, xrn, creds, call_id):
294 def _DeleteSliver(server, xrn, creds, call_id):
295 server_version = api.get_cached_server_version(server)
297 if _call_id_supported(api, server):
299 return server.DeleteSliver(*args)
301 if Callids().already_handled(call_id): return ""
302 (hrn, type) = urn_to_hrn(xrn)
303 # get the callers hrn
304 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
305 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
307 # attempt to use delegated credential first
308 cred = api.getDelegatedCredential(creds)
310 cred = api.getCredential()
311 threads = ThreadManager()
312 for aggregate in api.aggregates:
313 # prevent infinite loop. Dont send request back to caller
314 # unless the caller is the aggregate's SM
315 if caller_hrn == aggregate and aggregate != api.hrn:
317 interface = api.aggregates[aggregate]
318 server = api.get_server(interface, cred)
319 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
320 threads.get_results()
324 # first draft at a merging SliverStatus
325 def SliverStatus(api, slice_xrn, creds, call_id):
326 def _SliverStatus(server, xrn, creds, call_id):
327 server_version = api.get_cached_server_version(server)
329 if _call_id_supported(api, server):
331 return server.SliverStatus(*args)
333 if Callids().already_handled(call_id): return {}
334 # attempt to use delegated credential first
335 cred = api.getDelegatedCredential(creds)
337 cred = api.getCredential()
338 threads = ThreadManager()
339 for aggregate in api.aggregates:
340 interface = api.aggregates[aggregate]
341 server = api.get_server(interface, cred)
342 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
343 results = threads.get_results()
345 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
346 results = [ result for result in results if result and result['geni_resources']]
348 # do not try to combine if there's no result
349 if not results : return {}
351 # otherwise let's merge stuff
354 # mmh, it is expected that all results carry the same urn
355 overall['geni_urn'] = results[0]['geni_urn']
356 overall['pl_login'] = results[0]['pl_login']
357 # append all geni_resources
358 overall['geni_resources'] = \
359 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
360 overall['status'] = 'unknown'
361 if overall['geni_resources']:
362 overall['status'] = 'ready'
368 def ListSlices(api, creds, call_id):
369 def _ListSlices(server, creds, call_id):
370 server_version = api.get_cached_server_version(server)
372 if _call_id_supported(api, server):
374 return server.ListSlices(*args)
376 if Callids().already_handled(call_id): return []
378 # look in cache first
379 if caching and api.cache:
380 slices = api.cache.get('slices')
384 # get the callers hrn
385 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
386 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
388 # attempt to use delegated credential first
389 cred= api.getDelegatedCredential(creds)
391 cred = api.getCredential()
392 threads = ThreadManager()
393 # fetch from aggregates
394 for aggregate in api.aggregates:
395 # prevent infinite loop. Dont send request back to caller
396 # unless the caller is the aggregate's SM
397 if caller_hrn == aggregate and aggregate != api.hrn:
399 interface = api.aggregates[aggregate]
400 server = api.get_server(interface, cred)
401 threads.run(_ListSlices, server, [cred], call_id)
404 results = threads.get_results()
406 for result in results:
407 slices.extend(result)
410 if caching and api.cache:
411 api.cache.add('slices', slices)
416 def get_ticket(api, xrn, creds, rspec, users):
417 slice_hrn, type = urn_to_hrn(xrn)
418 # get the netspecs contained within the clients rspec
419 aggregate_rspecs = {}
420 tree= etree.parse(StringIO(rspec))
421 elements = tree.findall('./network')
422 for element in elements:
423 aggregate_hrn = element.values()[0]
424 aggregate_rspecs[aggregate_hrn] = rspec
426 # get the callers hrn
427 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
428 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
430 # attempt to use delegated credential first
431 cred = api.getDelegatedCredential(creds)
433 cred = api.getCredential()
434 threads = ThreadManager()
435 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
436 # prevent infinite loop. Dont send request back to caller
437 # unless the caller is the aggregate's SM
438 if caller_hrn == aggregate and aggregate != api.hrn:
441 interface = api.aggregates[aggregate]
442 server = api.get_server(interface, cred)
443 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users)
445 results = threads.get_results()
447 # gather information from each ticket
452 for result in results:
453 agg_ticket = SfaTicket(string=result)
454 attrs = agg_ticket.get_attributes()
456 object_gid = agg_ticket.get_gid_object()
457 rspecs.append(agg_ticket.get_rspec())
458 initscripts.extend(attrs.get('initscripts', []))
459 slivers.extend(attrs.get('slivers', []))
462 attributes = {'initscripts': initscripts,
464 merged_rspec = merge_rspecs(rspecs)
466 # create a new ticket
467 ticket = SfaTicket(subject = slice_hrn)
468 ticket.set_gid_caller(api.auth.client_gid)
469 ticket.set_issuer(key=api.key, subject=api.hrn)
470 ticket.set_gid_object(object_gid)
471 ticket.set_pubkey(object_gid.get_pubkey())
472 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
473 ticket.set_attributes(attributes)
474 ticket.set_rspec(merged_rspec)
477 return ticket.save_to_string(save_parents=True)
479 def start_slice(api, xrn, creds):
480 hrn, type = urn_to_hrn(xrn)
482 # get the callers hrn
483 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
484 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
486 # attempt to use delegated credential first
487 cred = api.getDelegatedCredential(creds)
489 cred = api.getCredential()
490 threads = ThreadManager()
491 for aggregate in api.aggregates:
492 # prevent infinite loop. Dont send request back to caller
493 # unless the caller is the aggregate's SM
494 if caller_hrn == aggregate and aggregate != api.hrn:
496 interface = api.aggregates[aggregate]
497 server = api.get_server(interface, cred)
498 threads.run(server.Start, xrn, cred)
499 threads.get_results()
502 def stop_slice(api, xrn, creds):
503 hrn, type = urn_to_hrn(xrn)
505 # get the callers hrn
506 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
507 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
509 # attempt to use delegated credential first
510 cred = api.getDelegatedCredential(creds)
512 cred = api.getCredential()
513 threads = ThreadManager()
514 for aggregate in api.aggregates:
515 # prevent infinite loop. Dont send request back to caller
516 # unless the caller is the aggregate's SM
517 if caller_hrn == aggregate and aggregate != api.hrn:
519 interface = api.aggregates[aggregate]
520 server = api.get_server(interface, cred)
521 threads.run(server.Stop, xrn, cred)
522 threads.get_results()
525 def reset_slice(api, xrn):
531 def shutdown(api, xrn, creds):
537 def status(api, xrn, creds):
545 r.parseFile(sys.argv[1])
547 CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
549 if __name__ == "__main__":