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
15 from sfa.server.threadmanager import ThreadManager
16 from sfa.rspecs.rspec_converter import RSpecConverter
17 from sfa.rspecs.version_manager import VersionManager
18 from sfa.rspecs.rspec import RSpec
19 from sfa.client.client_helper import sfa_to_pg_users_arg
20 from sfa.client.return_value import ReturnValue
27 def _options_supported(self, api, server):
29 Returns true if server support the optional call_id arg, false otherwise.
31 server_version = api.get_cached_server_version(server)
33 if 'sfa' in server_version:
34 code_tag = server_version['code_tag']
35 code_tag_parts = code_tag.split("-")
37 version_parts = code_tag_parts[0].split(".")
38 major, minor = version_parts[0:2]
39 rev = code_tag_parts[1]
45 # we have specialized xmlrpclib.ServerProxy to remember the input url
46 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
47 def get_serverproxy_url (self, server):
49 return server.get_url()
51 logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
52 return server._ServerProxy__host + server._ServerProxy__handler
54 def GetVersion(self, api, options={}):
55 # peers explicitly in aggregates.xml
56 peers =dict ([ (peername,self.get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
57 if peername != api.hrn])
58 version_manager = VersionManager()
59 ad_rspec_versions = []
60 request_rspec_versions = []
61 for rspec_version in version_manager.versions:
62 if rspec_version.content_type in ['*', 'ad']:
63 ad_rspec_versions.append(rspec_version.to_dict())
64 if rspec_version.content_type in ['*', 'request']:
65 request_rspec_versions.append(rspec_version.to_dict())
66 xrn=Xrn(api.hrn, 'authority+sa')
67 version_more = {'interface':'slicemgr',
69 'geni_api': api.config.SFA_AGGREGATE_API_VERSION,
70 'hrn' : xrn.get_hrn(),
71 'urn' : xrn.get_urn(),
73 'geni_request_rspec_versions': request_rspec_versions,
74 'geni_ad_rspec_versions': ad_rspec_versions,
76 sm_version=version_core(version_more)
77 # local aggregate if present needs to have localhost resolved
78 if api.hrn in api.aggregates:
79 local_am_url=self.get_serverproxy_url(api.aggregates[api.hrn])
80 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
83 def drop_slicemgr_stats(self, rspec):
85 stats_elements = rspec.xml.xpath('//statistics')
86 for node in stats_elements:
87 node.getparent().remove(node)
89 logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
91 def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None):
93 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
95 stats_tag = stats_tags[0]
97 stats_tag = rspec.xml.root.add_element("statistics", call=callname)
99 stat_tag = stats_tag.add_element("aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
102 exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1]))
104 # formats the traceback as one big text blob
105 #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2]))
107 # formats the traceback as a set of xml elements
108 tb = traceback.extract_tb(exc_info[2])
110 exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]), line=str(item[1]), func=str(item[2]), code=str(item[3]))
113 logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
115 def ListResources(self, api, creds, options={}):
116 version_manager = VersionManager()
117 def _ListResources(aggregate, server, credential, opts={}):
120 args = [credential, my_opts]
123 version = api.get_cached_server_version(server)
124 # force ProtoGENI aggregates to give us a v2 RSpec
125 if 'sfa' in version.keys():
126 my_opts['rspec_version'] = version_manager.get_version('SFA 1').to_dict()
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)
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(ReturnValue.get_value(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(ReturnValue.get_value(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 results = [ReturnValue.get_value(result) for result in threads.get_results()]
300 return reduce (lambda x,y: x and y, results , True)
302 def DeleteSliver(self, api, xrn, creds, options={}):
303 def _DeleteSliver(server, xrn, creds, options={}):
304 server_version = api.get_cached_server_version(server)
306 if self._options_supported(api, server):
308 return server.DeleteSliver(*args)
310 call_id = options.get('call_id')
311 if Callids().already_handled(call_id): return ""
312 (hrn, type) = urn_to_hrn(xrn)
313 # get the callers hrn
314 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
315 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
317 # attempt to use delegated credential first
318 cred = api.getDelegatedCredential(creds)
320 cred = api.getCredential()
321 threads = ThreadManager()
322 for aggregate in api.aggregates:
323 # prevent infinite loop. Dont send request back to caller
324 # unless the caller is the aggregate's SM
325 if caller_hrn == aggregate and aggregate != api.hrn:
327 interface = api.aggregates[aggregate]
328 server = api.server_proxy(interface, cred)
329 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
330 threads.get_results()
334 # first draft at a merging SliverStatus
335 def SliverStatus(self, api, slice_xrn, creds, options={}):
336 def _SliverStatus(server, xrn, creds, options={}):
337 server_version = api.get_cached_server_version(server)
339 if self._options_supported(api, server):
341 return server.SliverStatus(*args)
343 call_id = options.get('call_id')
344 if Callids().already_handled(call_id): return {}
345 # attempt to use delegated credential first
346 cred = api.getDelegatedCredential(creds)
348 cred = api.getCredential()
349 threads = ThreadManager()
350 for aggregate in api.aggregates:
351 interface = api.aggregates[aggregate]
352 server = api.server_proxy(interface, cred)
353 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
354 results = [ReturnValue.get_value(result) for result in threads.get_results()]
356 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
357 results = [ result for result in results if result and result['geni_resources']]
359 # do not try to combine if there's no result
360 if not results : return {}
362 # otherwise let's merge stuff
365 # mmh, it is expected that all results carry the same urn
366 overall['geni_urn'] = results[0]['geni_urn']
367 overall['pl_login'] = results[0]['pl_login']
368 # append all geni_resources
369 overall['geni_resources'] = \
370 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
371 overall['status'] = 'unknown'
372 if overall['geni_resources']:
373 overall['status'] = 'ready'
377 def ListSlices(self, api, creds, options={}):
378 def _ListSlices(server, creds, options={}):
379 server_version = api.get_cached_server_version(server)
381 if self._options_supported(api, server):
383 return server.ListSlices(*args)
385 call_id = options.get('call_id')
386 if Callids().already_handled(call_id): return []
388 # look in cache first
389 if self.caching and api.cache:
390 slices = api.cache.get('slices')
394 # get the callers hrn
395 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
396 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
398 # attempt to use delegated credential first
399 cred= api.getDelegatedCredential(creds)
401 cred = api.getCredential()
402 threads = ThreadManager()
403 # fetch from aggregates
404 for aggregate in api.aggregates:
405 # prevent infinite loop. Dont send request back to caller
406 # unless the caller is the aggregate's SM
407 if caller_hrn == aggregate and aggregate != api.hrn:
409 interface = api.aggregates[aggregate]
410 server = api.server_proxy(interface, cred)
411 threads.run(_ListSlices, server, [cred], options)
414 results = [ReturnValue.get_value(result) for result in threads.get_results()]
416 for result in results:
417 slices.extend(result)
420 if self.caching and api.cache:
421 api.cache.add('slices', slices)
426 def GetTicket(self, api, xrn, creds, rspec, users, options={}):
427 slice_hrn, type = urn_to_hrn(xrn)
428 # get the netspecs contained within the clients rspec
429 aggregate_rspecs = {}
430 tree= etree.parse(StringIO(rspec))
431 elements = tree.findall('./network')
432 for element in elements:
433 aggregate_hrn = element.values()[0]
434 aggregate_rspecs[aggregate_hrn] = rspec
436 # get the callers hrn
437 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
438 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
440 # attempt to use delegated credential first
441 cred = api.getDelegatedCredential(creds)
443 cred = api.getCredential()
444 threads = ThreadManager()
445 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
446 # prevent infinite loop. Dont send request back to caller
447 # unless the caller is the aggregate's SM
448 if caller_hrn == aggregate and aggregate != api.hrn:
451 interface = api.aggregates[aggregate]
452 server = api.server_proxy(interface, cred)
453 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
455 results = threads.get_results()
457 # gather information from each ticket
462 for result in results:
463 agg_ticket = SfaTicket(string=result)
464 attrs = agg_ticket.get_attributes()
466 object_gid = agg_ticket.get_gid_object()
468 rspec = RSpec(agg_ticket.get_rspec())
470 rspec.version.merge(agg_ticket.get_rspec())
471 initscripts.extend(attrs.get('initscripts', []))
472 slivers.extend(attrs.get('slivers', []))
475 attributes = {'initscripts': initscripts,
478 # create a new ticket
479 ticket = SfaTicket(subject = slice_hrn)
480 ticket.set_gid_caller(api.auth.client_gid)
481 ticket.set_issuer(key=api.key, subject=api.hrn)
482 ticket.set_gid_object(object_gid)
483 ticket.set_pubkey(object_gid.get_pubkey())
484 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
485 ticket.set_attributes(attributes)
486 ticket.set_rspec(rspec.toxml())
489 return ticket.save_to_string(save_parents=True)
491 def start_slice(self, api, xrn, creds):
492 hrn, type = urn_to_hrn(xrn)
494 # get the callers hrn
495 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
496 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
498 # attempt to use delegated credential first
499 cred = api.getDelegatedCredential(creds)
501 cred = api.getCredential()
502 threads = ThreadManager()
503 for aggregate in api.aggregates:
504 # prevent infinite loop. Dont send request back to caller
505 # unless the caller is the aggregate's SM
506 if caller_hrn == aggregate and aggregate != api.hrn:
508 interface = api.aggregates[aggregate]
509 server = api.server_proxy(interface, cred)
510 threads.run(server.Start, xrn, cred)
511 threads.get_results()
514 def stop_slice(self, api, xrn, creds):
515 hrn, type = urn_to_hrn(xrn)
517 # get the callers hrn
518 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
519 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
521 # attempt to use delegated credential first
522 cred = api.getDelegatedCredential(creds)
524 cred = api.getCredential()
525 threads = ThreadManager()
526 for aggregate in api.aggregates:
527 # prevent infinite loop. Dont send request back to caller
528 # unless the caller is the aggregate's SM
529 if caller_hrn == aggregate and aggregate != api.hrn:
531 interface = api.aggregates[aggregate]
532 server = api.server_proxy(interface, cred)
533 threads.run(server.Stop, xrn, cred)
534 threads.get_results()
537 def reset_slice(self, api, xrn):
543 def shutdown(self, api, xrn, creds):
549 def status(self, api, xrn, creds):