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.specdict import *
15 from sfa.util.faults import *
16 from sfa.util.record import SfaRecord
17 from sfa.rspecs.rspec_converter import RSpecConverter
18 from sfa.client.client_helper import sfa_to_pg_users_arg
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):
54 return server.get_url()
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.content_type in ['*', 'ad']:
68 ad_rspec_versions.append(rspec_version.to_dict())
69 if rspec_version.content_type in ['*', 'request']:
70 request_rspec_versions.append(rspec_version.to_dict())
71 default_rspec_version = version_manager.get_version("sfa 1").to_dict()
72 xrn=Xrn(api.hrn, 'authority+sa')
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.root, "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 2').to_dict()
122 rspec = server.ListResources(*args)
123 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
125 api.logger.log_exc("ListResources failed at %s" %(server.url))
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 cred = api.getDelegatedCredential(creds)
153 cred = api.getCredential()
154 threads = ThreadManager()
155 for aggregate in api.aggregates:
156 # prevent infinite loop. Dont send request back to caller
157 # unless the caller is the aggregate's SM
158 if caller_hrn == aggregate and aggregate != api.hrn:
161 # get the rspec from the aggregate
162 interface = api.aggregates[aggregate]
163 server = api.get_server(interface, cred)
164 threads.run(_ListResources, aggregate, server, [cred], options, call_id)
167 results = threads.get_results()
168 rspec_version = version_manager.get_version(options.get('rspec_version'))
170 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
172 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
173 rspec = RSpec(version=result_version)
174 for result in results:
175 add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"])
176 if result["status"]=="success":
178 rspec.version.merge(result["rspec"])
180 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
183 if caching and api.cache and not xrn:
184 api.cache.add(version_string, rspec.toxml())
189 def CreateSliver(api, xrn, creds, rspec_str, users, call_id):
191 version_manager = VersionManager()
192 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, call_id):
195 # Need to call GetVersion at an aggregate to determine the supported
196 # rspec type/format beofre calling CreateSliver at an Aggregate.
197 server_version = api.get_cached_server_version(server)
198 requested_users = users
199 if 'sfa' not in server_version and 'geni_api' in server_version:
200 # sfa aggregtes support both sfa and pg rspecs, no need to convert
201 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
202 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
203 filter = {'component_manager_id': server_version['urn']}
205 rspec = rspec.toxml()
206 requested_users = sfa_to_pg_users_arg(users)
207 args = [xrn, credential, rspec, requested_users]
208 if _call_id_supported(api, server):
210 rspec = server.CreateSliver(*args)
211 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
213 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
214 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
216 if Callids().already_handled(call_id): return ""
217 # Validate the RSpec against PlanetLab's schema --disabled for now
218 # The schema used here needs to aggregate the PL and VINI schemas
219 # schema = "/var/www/html/schemas/pl.rng"
220 rspec = RSpec(rspec_str)
223 rspec.validate(schema)
225 # if there is a <statistics> section, the aggregates don't care about it,
227 drop_slicemgr_stats(rspec)
229 # attempt to use delegated credential first
230 cred = api.getDelegatedCredential(creds)
232 cred = api.getCredential()
234 # get the callers hrn
235 hrn, type = urn_to_hrn(xrn)
236 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
237 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
238 threads = ThreadManager()
239 for aggregate in api.aggregates:
240 # prevent infinite loop. Dont send request back to caller
241 # unless the caller is the aggregate's SM
242 if caller_hrn == aggregate and aggregate != api.hrn:
244 interface = api.aggregates[aggregate]
245 server = api.get_server(interface, cred)
246 # Just send entire RSpec to each aggregate
247 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id)
249 results = threads.get_results()
250 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
251 result_rspec = RSpec(version=manifest_version)
252 for result in results:
253 add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"])
254 if result["status"]=="success":
256 result_rspec.version.merge(result["rspec"])
258 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
259 return result_rspec.toxml()
261 def RenewSliver(api, xrn, creds, expiration_time, call_id):
262 def _RenewSliver(server, xrn, creds, expiration_time, call_id):
263 server_version = api.get_cached_server_version(server)
264 args = [xrn, creds, expiration_time, call_id]
265 if _call_id_supported(api, server):
267 return server.RenewSliver(*args)
269 if Callids().already_handled(call_id): return True
271 (hrn, type) = urn_to_hrn(xrn)
272 # get the callers hrn
273 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
274 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
276 # attempt to use delegated credential first
277 cred = api.getDelegatedCredential(creds)
279 cred = api.getCredential()
280 threads = ThreadManager()
281 for aggregate in api.aggregates:
282 # prevent infinite loop. Dont send request back to caller
283 # unless the caller is the aggregate's SM
284 if caller_hrn == aggregate and aggregate != api.hrn:
286 interface = api.aggregates[aggregate]
287 server = api.get_server(interface, cred)
288 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id)
290 return reduce (lambda x,y: x and y, threads.get_results() , True)
292 def DeleteSliver(api, xrn, creds, call_id):
293 def _DeleteSliver(server, xrn, creds, call_id):
294 server_version = api.get_cached_server_version(server)
296 if _call_id_supported(api, server):
298 return server.DeleteSliver(*args)
300 if Callids().already_handled(call_id): return ""
301 (hrn, type) = urn_to_hrn(xrn)
302 # get the callers hrn
303 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
304 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
306 # attempt to use delegated credential first
307 cred = api.getDelegatedCredential(creds)
309 cred = api.getCredential()
310 threads = ThreadManager()
311 for aggregate in api.aggregates:
312 # prevent infinite loop. Dont send request back to caller
313 # unless the caller is the aggregate's SM
314 if caller_hrn == aggregate and aggregate != api.hrn:
316 interface = api.aggregates[aggregate]
317 server = api.get_server(interface, cred)
318 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
319 threads.get_results()
323 # first draft at a merging SliverStatus
324 def SliverStatus(api, slice_xrn, creds, call_id):
325 def _SliverStatus(server, xrn, creds, call_id):
326 server_version = api.get_cached_server_version(server)
328 if _call_id_supported(api, server):
330 return server.SliverStatus(*args)
332 if Callids().already_handled(call_id): return {}
333 # attempt to use delegated credential first
334 cred = api.getDelegatedCredential(creds)
336 cred = api.getCredential()
337 threads = ThreadManager()
338 for aggregate in api.aggregates:
339 interface = api.aggregates[aggregate]
340 server = api.get_server(interface, cred)
341 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
342 results = threads.get_results()
344 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
345 results = [ result for result in results if result and result['geni_resources']]
347 # do not try to combine if there's no result
348 if not results : return {}
350 # otherwise let's merge stuff
353 # mmh, it is expected that all results carry the same urn
354 overall['geni_urn'] = results[0]['geni_urn']
355 overall['pl_login'] = results[0]['pl_login']
356 # append all geni_resources
357 overall['geni_resources'] = \
358 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
359 overall['status'] = 'unknown'
360 if overall['geni_resources']:
361 overall['status'] = 'ready'
367 def ListSlices(api, creds, call_id):
368 def _ListSlices(server, creds, call_id):
369 server_version = api.get_cached_server_version(server)
371 if _call_id_supported(api, server):
373 return server.ListSlices(*args)
375 if Callids().already_handled(call_id): return []
377 # look in cache first
378 if caching and api.cache:
379 slices = api.cache.get('slices')
383 # get the callers hrn
384 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
385 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
387 # attempt to use delegated credential first
388 cred= api.getDelegatedCredential(creds)
390 cred = api.getCredential()
391 threads = ThreadManager()
392 # fetch from aggregates
393 for aggregate in api.aggregates:
394 # prevent infinite loop. Dont send request back to caller
395 # unless the caller is the aggregate's SM
396 if caller_hrn == aggregate and aggregate != api.hrn:
398 interface = api.aggregates[aggregate]
399 server = api.get_server(interface, cred)
400 threads.run(_ListSlices, server, [cred], call_id)
403 results = threads.get_results()
405 for result in results:
406 slices.extend(result)
409 if caching and api.cache:
410 api.cache.add('slices', slices)
415 def get_ticket(api, xrn, creds, rspec, users):
416 slice_hrn, type = urn_to_hrn(xrn)
417 # get the netspecs contained within the clients rspec
418 aggregate_rspecs = {}
419 tree= etree.parse(StringIO(rspec))
420 elements = tree.findall('./network')
421 for element in elements:
422 aggregate_hrn = element.values()[0]
423 aggregate_rspecs[aggregate_hrn] = rspec
425 # get the callers hrn
426 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
427 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
429 # attempt to use delegated credential first
430 cred = api.getDelegatedCredential(creds)
432 cred = api.getCredential()
433 threads = ThreadManager()
434 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
435 # prevent infinite loop. Dont send request back to caller
436 # unless the caller is the aggregate's SM
437 if caller_hrn == aggregate and aggregate != api.hrn:
440 interface = api.aggregates[aggregate]
441 server = api.get_server(interface, cred)
442 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users)
444 results = threads.get_results()
446 # gather information from each ticket
451 for result in results:
452 agg_ticket = SfaTicket(string=result)
453 attrs = agg_ticket.get_attributes()
455 object_gid = agg_ticket.get_gid_object()
456 rspecs.append(agg_ticket.get_rspec())
457 initscripts.extend(attrs.get('initscripts', []))
458 slivers.extend(attrs.get('slivers', []))
461 attributes = {'initscripts': initscripts,
463 merged_rspec = merge_rspecs(rspecs)
465 # create a new ticket
466 ticket = SfaTicket(subject = slice_hrn)
467 ticket.set_gid_caller(api.auth.client_gid)
468 ticket.set_issuer(key=api.key, subject=api.hrn)
469 ticket.set_gid_object(object_gid)
470 ticket.set_pubkey(object_gid.get_pubkey())
471 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
472 ticket.set_attributes(attributes)
473 ticket.set_rspec(merged_rspec)
476 return ticket.save_to_string(save_parents=True)
478 def start_slice(api, xrn, creds):
479 hrn, type = urn_to_hrn(xrn)
481 # get the callers hrn
482 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
483 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
485 # attempt to use delegated credential first
486 cred = api.getDelegatedCredential(creds)
488 cred = api.getCredential()
489 threads = ThreadManager()
490 for aggregate in api.aggregates:
491 # prevent infinite loop. Dont send request back to caller
492 # unless the caller is the aggregate's SM
493 if caller_hrn == aggregate and aggregate != api.hrn:
495 interface = api.aggregates[aggregate]
496 server = api.get_server(interface, cred)
497 threads.run(server.Start, xrn, cred)
498 threads.get_results()
501 def stop_slice(api, xrn, creds):
502 hrn, type = urn_to_hrn(xrn)
504 # get the callers hrn
505 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
506 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
508 # attempt to use delegated credential first
509 cred = api.getDelegatedCredential(creds)
511 cred = api.getCredential()
512 threads = ThreadManager()
513 for aggregate in api.aggregates:
514 # prevent infinite loop. Dont send request back to caller
515 # unless the caller is the aggregate's SM
516 if caller_hrn == aggregate and aggregate != api.hrn:
518 interface = api.aggregates[aggregate]
519 server = api.get_server(interface, cred)
520 threads.run(server.Stop, xrn, cred)
521 threads.get_results()
524 def reset_slice(api, xrn):
530 def shutdown(api, xrn, creds):
536 def status(api, xrn, creds):
544 r.parseFile(sys.argv[1])
546 CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
548 if __name__ == "__main__":