4 from StringIO import StringIO
8 from sfa.trust.sfaticket import SfaTicket
9 from sfa.trust.credential import Credential
11 from sfa.util.sfalogging import logger
12 from sfa.util.xrn import Xrn, urn_to_hrn
13 from sfa.util.version import version_core
14 from sfa.util.callids import Callids
16 from sfa.server.threadmanager import ThreadManager
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.client.client_helper import sfa_to_pg_users_arg
29 def _options_supported(self, api, server):
31 Returns true if server support the optional call_id arg, false otherwise.
33 server_version = api.get_cached_server_version(server)
35 if 'sfa' in server_version:
36 code_tag = server_version['code_tag']
37 code_tag_parts = code_tag.split("-")
39 version_parts = code_tag_parts[0].split(".")
40 major, minor = version_parts[0:2]
41 rev = code_tag_parts[1]
47 # we have specialized xmlrpclib.ServerProxy to remember the input url
48 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
49 def get_serverproxy_url (self, server):
51 return server.get_url()
53 logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
54 return server._ServerProxy__host + server._ServerProxy__handler
56 def GetVersion(self, api, options={}):
57 # peers explicitly in aggregates.xml
58 peers =dict ([ (peername,self.get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
59 if peername != api.hrn])
60 version_manager = VersionManager()
61 ad_rspec_versions = []
62 request_rspec_versions = []
63 for rspec_version in version_manager.versions:
64 if rspec_version.content_type in ['*', 'ad']:
65 ad_rspec_versions.append(rspec_version.to_dict())
66 if rspec_version.content_type in ['*', 'request']:
67 request_rspec_versions.append(rspec_version.to_dict())
68 xrn=Xrn(api.hrn, 'authority+sa')
69 version_more = {'interface':'slicemgr',
71 'geni_api': api.config.SFA_AGGREGATE_API_VERSION,
72 'hrn' : xrn.get_hrn(),
73 'urn' : xrn.get_urn(),
75 'geni_request_rspec_versions': request_rspec_versions,
76 'geni_ad_rspec_versions': ad_rspec_versions,
78 sm_version=version_core(version_more)
79 # local aggregate if present needs to have localhost resolved
80 if api.hrn in api.aggregates:
81 local_am_url=self.get_serverproxy_url(api.aggregates[api.hrn])
82 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
85 def drop_slicemgr_stats(self, rspec):
87 stats_elements = rspec.xml.xpath('//statistics')
88 for node in stats_elements:
89 node.getparent().remove(node)
91 logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
93 def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None):
95 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
97 stats_tag = stats_tags[0]
99 stats_tag = rspec.xml.root.add_element("statistics", call=callname)
101 stat_tag = stats_tag.add_element("aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
104 exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1]))
106 # formats the traceback as one big text blob
107 #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2]))
109 # formats the traceback as a set of xml elements
110 tb = traceback.extract_tb(exc_info[2])
112 exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]), line=str(item[1]), func=str(item[2]), code=str(item[3]))
115 logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
117 def ListResources(self, api, creds, options={}):
118 version_manager = VersionManager()
119 def _ListResources(aggregate, server, credential, opts={}):
122 args = [credential, my_opts]
125 version = api.get_cached_server_version(server)
126 # force ProtoGENI aggregates to give us a v2 RSpec
127 if 'sfa' not in version.keys():
128 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
129 rspec = server.ListResources(*args)
130 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
132 api.logger.log_exc("ListResources failed at %s" %(server.url))
133 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
134 call_id = options.get('call_id')
135 if Callids().already_handled(call_id): return ""
137 # get slice's hrn from options
138 xrn = options.get('geni_slice_urn', '')
139 (hrn, type) = urn_to_hrn(xrn)
140 if 'geni_compressed' in options:
141 del(options['geni_compressed'])
143 # get the rspec's return format from options
144 rspec_version = version_manager.get_version(options.get('rspec_version'))
145 version_string = "rspec_%s" % (rspec_version.to_string())
147 # look in cache first
148 if self.caching and api.cache and not xrn:
149 rspec = api.cache.get(version_string)
153 # get the callers hrn
154 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
155 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
157 # attempt to use delegated credential first
158 cred = api.getDelegatedCredential(creds)
160 cred = api.getCredential()
161 threads = ThreadManager()
162 for aggregate in api.aggregates:
163 # prevent infinite loop. Dont send request back to caller
164 # unless the caller is the aggregate's SM
165 if caller_hrn == aggregate and aggregate != api.hrn:
168 # get the rspec from the aggregate
169 interface = api.aggregates[aggregate]
170 server = api.server_proxy(interface, cred)
171 threads.run(_ListResources, aggregate, server, [cred], options)
174 results = threads.get_results()
175 rspec_version = version_manager.get_version(options.get('rspec_version'))
177 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
179 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
180 rspec = RSpec(version=result_version)
181 for result in results:
182 self.add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
183 if result["status"]=="success":
185 rspec.version.merge(result["rspec"])
187 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
190 if self.caching and api.cache and not xrn:
191 api.cache.add(version_string, rspec.toxml())
196 def CreateSliver(self, api, xrn, creds, rspec_str, users, options={}):
198 version_manager = VersionManager()
199 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, options={}):
202 # Need to call GetVersion at an aggregate to determine the supported
203 # rspec type/format beofre calling CreateSliver at an Aggregate.
204 server_version = api.get_cached_server_version(server)
205 requested_users = users
206 if 'sfa' not in server_version and 'geni_api' in server_version:
207 # sfa aggregtes support both sfa and pg rspecs, no need to convert
208 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
209 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
210 filter = {'component_manager_id': server_version['urn']}
212 rspec = rspec.toxml()
213 requested_users = sfa_to_pg_users_arg(users)
214 args = [xrn, credential, rspec, requested_users]
215 if self._options_supported(api, server):
217 rspec = server.CreateSliver(*args)
218 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
220 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
221 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
223 call_id = options.get('call_id')
224 if Callids().already_handled(call_id): return ""
225 # Validate the RSpec against PlanetLab's schema --disabled for now
226 # The schema used here needs to aggregate the PL and VINI schemas
227 # schema = "/var/www/html/schemas/pl.rng"
228 rspec = RSpec(rspec_str)
231 # rspec.validate(schema)
233 # if there is a <statistics> section, the aggregates don't care about it,
235 self.drop_slicemgr_stats(rspec)
237 # attempt to use delegated credential first
238 cred = api.getDelegatedCredential(creds)
240 cred = api.getCredential()
242 # get the callers hrn
243 hrn, type = urn_to_hrn(xrn)
244 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
245 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
246 threads = ThreadManager()
247 for aggregate in api.aggregates:
248 # prevent infinite loop. Dont send request back to caller
249 # unless the caller is the aggregate's SM
250 if caller_hrn == aggregate and aggregate != api.hrn:
252 interface = api.aggregates[aggregate]
253 server = api.server_proxy(interface, cred)
254 # Just send entire RSpec to each aggregate
255 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id)
257 results = threads.get_results()
258 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
259 result_rspec = RSpec(version=manifest_version)
260 for result in results:
261 self.add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
262 if result["status"]=="success":
264 result_rspec.version.merge(result["rspec"])
266 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
267 return result_rspec.toxml()
269 def RenewSliver(self, api, xrn, creds, expiration_time, options={}):
270 def _RenewSliver(server, xrn, creds, expiration_time, options={}):
271 server_version = api.get_cached_server_version(server)
272 args = [xrn, creds, expiration_time]
273 if self._options_supported(api, server):
275 return server.RenewSliver(*args)
277 call_id = options.get('call_id')
278 if Callids().already_handled(call_id): return True
280 (hrn, type) = urn_to_hrn(xrn)
281 # get the callers hrn
282 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
283 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
285 # attempt to use delegated credential first
286 cred = api.getDelegatedCredential(creds)
288 cred = api.getCredential()
289 threads = ThreadManager()
290 for aggregate in api.aggregates:
291 # prevent infinite loop. Dont send request back to caller
292 # unless the caller is the aggregate's SM
293 if caller_hrn == aggregate and aggregate != api.hrn:
295 interface = api.aggregates[aggregate]
296 server = api.server_proxy(interface, cred)
297 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id)
299 return reduce (lambda x,y: x and y, threads.get_results() , True)
301 def DeleteSliver(self, api, xrn, creds, options={}):
302 def _DeleteSliver(server, xrn, creds, options={}):
303 server_version = api.get_cached_server_version(server)
305 if self._options_supported(api, server):
307 return server.DeleteSliver(*args)
309 call_id = options.get('call_id')
310 if Callids().already_handled(call_id): return ""
311 (hrn, type) = urn_to_hrn(xrn)
312 # get the callers hrn
313 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
314 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
316 # attempt to use delegated credential first
317 cred = api.getDelegatedCredential(creds)
319 cred = api.getCredential()
320 threads = ThreadManager()
321 for aggregate in api.aggregates:
322 # prevent infinite loop. Dont send request back to caller
323 # unless the caller is the aggregate's SM
324 if caller_hrn == aggregate and aggregate != api.hrn:
326 interface = api.aggregates[aggregate]
327 server = api.server_proxy(interface, cred)
328 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
329 threads.get_results()
333 # first draft at a merging SliverStatus
334 def SliverStatus(self, api, slice_xrn, creds, options={}):
335 def _SliverStatus(server, xrn, creds, options={}):
336 server_version = api.get_cached_server_version(server)
338 if self._options_supported(api, server):
340 return server.SliverStatus(*args)
342 call_id = options.get('call_id')
343 if Callids().already_handled(call_id): return {}
344 # attempt to use delegated credential first
345 cred = api.getDelegatedCredential(creds)
347 cred = api.getCredential()
348 threads = ThreadManager()
349 for aggregate in api.aggregates:
350 interface = api.aggregates[aggregate]
351 server = api.server_proxy(interface, cred)
352 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
353 results = threads.get_results()
355 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
356 results = [ result for result in results if result and result['geni_resources']]
358 # do not try to combine if there's no result
359 if not results : return {}
361 # otherwise let's merge stuff
364 # mmh, it is expected that all results carry the same urn
365 overall['geni_urn'] = results[0]['geni_urn']
366 overall['pl_login'] = results[0]['pl_login']
367 # append all geni_resources
368 overall['geni_resources'] = \
369 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
370 overall['status'] = 'unknown'
371 if overall['geni_resources']:
372 overall['status'] = 'ready'
376 def ListSlices(self, api, creds, options={}):
377 def _ListSlices(server, creds, options={}):
378 server_version = api.get_cached_server_version(server)
380 if self._options_supported(api, server):
382 return server.ListSlices(*args)
384 call_id = options.get('call_id')
385 if Callids().already_handled(call_id): return []
387 # look in cache first
388 if self.caching and api.cache:
389 slices = api.cache.get('slices')
393 # get the callers hrn
394 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
395 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
397 # attempt to use delegated credential first
398 cred= api.getDelegatedCredential(creds)
400 cred = api.getCredential()
401 threads = ThreadManager()
402 # fetch from aggregates
403 for aggregate in api.aggregates:
404 # prevent infinite loop. Dont send request back to caller
405 # unless the caller is the aggregate's SM
406 if caller_hrn == aggregate and aggregate != api.hrn:
408 interface = api.aggregates[aggregate]
409 server = api.server_proxy(interface, cred)
410 threads.run(_ListSlices, server, [cred], options)
413 results = threads.get_results()
415 for result in results:
416 slices.extend(result)
419 if self.caching and api.cache:
420 api.cache.add('slices', slices)
425 def GetTicket(self, api, xrn, creds, rspec, users, options={}):
426 slice_hrn, type = urn_to_hrn(xrn)
427 # get the netspecs contained within the clients rspec
428 aggregate_rspecs = {}
429 tree= etree.parse(StringIO(rspec))
430 elements = tree.findall('./network')
431 for element in elements:
432 aggregate_hrn = element.values()[0]
433 aggregate_rspecs[aggregate_hrn] = rspec
435 # get the callers hrn
436 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
437 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
439 # attempt to use delegated credential first
440 cred = api.getDelegatedCredential(creds)
442 cred = api.getCredential()
443 threads = ThreadManager()
444 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
445 # prevent infinite loop. Dont send request back to caller
446 # unless the caller is the aggregate's SM
447 if caller_hrn == aggregate and aggregate != api.hrn:
450 interface = api.aggregates[aggregate]
451 server = api.server_proxy(interface, cred)
452 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
454 results = threads.get_results()
456 # gather information from each ticket
461 for result in results:
462 agg_ticket = SfaTicket(string=result)
463 attrs = agg_ticket.get_attributes()
465 object_gid = agg_ticket.get_gid_object()
467 rspec = RSpec(agg_ticket.get_rspec())
469 rspec.version.merge(agg_ticket.get_rspec())
470 initscripts.extend(attrs.get('initscripts', []))
471 slivers.extend(attrs.get('slivers', []))
474 attributes = {'initscripts': initscripts,
477 # create a new ticket
478 ticket = SfaTicket(subject = slice_hrn)
479 ticket.set_gid_caller(api.auth.client_gid)
480 ticket.set_issuer(key=api.key, subject=api.hrn)
481 ticket.set_gid_object(object_gid)
482 ticket.set_pubkey(object_gid.get_pubkey())
483 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
484 ticket.set_attributes(attributes)
485 ticket.set_rspec(rspec.toxml())
488 return ticket.save_to_string(save_parents=True)
490 def start_slice(self, api, xrn, creds):
491 hrn, type = urn_to_hrn(xrn)
493 # get the callers hrn
494 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
495 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
497 # attempt to use delegated credential first
498 cred = api.getDelegatedCredential(creds)
500 cred = api.getCredential()
501 threads = ThreadManager()
502 for aggregate in api.aggregates:
503 # prevent infinite loop. Dont send request back to caller
504 # unless the caller is the aggregate's SM
505 if caller_hrn == aggregate and aggregate != api.hrn:
507 interface = api.aggregates[aggregate]
508 server = api.server_proxy(interface, cred)
509 threads.run(server.Start, xrn, cred)
510 threads.get_results()
513 def stop_slice(self, api, xrn, creds):
514 hrn, type = urn_to_hrn(xrn)
516 # get the callers hrn
517 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
518 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
520 # attempt to use delegated credential first
521 cred = api.getDelegatedCredential(creds)
523 cred = api.getCredential()
524 threads = ThreadManager()
525 for aggregate in api.aggregates:
526 # prevent infinite loop. Dont send request back to caller
527 # unless the caller is the aggregate's SM
528 if caller_hrn == aggregate and aggregate != api.hrn:
530 interface = api.aggregates[aggregate]
531 server = api.server_proxy(interface, cred)
532 threads.run(server.Stop, xrn, cred)
533 threads.get_results()
536 def reset_slice(self, api, xrn):
542 def shutdown(self, api, xrn, creds):
548 def status(self, api, xrn, creds):