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
24 # xxx todo should be configurable
28 def _options_supported(self, api, server):
30 Returns true if server supports the extra 'options' arg. to API calls
32 server_version = api.get_cached_server_version(server)
33 return server_version.has_key ('options_support')
35 def GetVersion(self, api, options={}):
36 # peers explicitly in aggregates.xml
37 peers =dict ([ (peername,interface.get_url()) for (peername,interface) in api.aggregates.iteritems()
38 if peername != api.hrn])
39 version_manager = VersionManager()
40 ad_rspec_versions = []
41 request_rspec_versions = []
42 for rspec_version in version_manager.versions:
43 if rspec_version.content_type in ['*', 'ad']:
44 ad_rspec_versions.append(rspec_version.to_dict())
45 if rspec_version.content_type in ['*', 'request']:
46 request_rspec_versions.append(rspec_version.to_dict())
47 xrn=Xrn(api.hrn, 'authority+sa')
48 version_more = {'interface':'slicemgr',
50 'geni_api': api.config.SFA_AGGREGATE_API_VERSION,
51 'hrn' : xrn.get_hrn(),
52 'urn' : xrn.get_urn(),
54 'geni_request_rspec_versions': request_rspec_versions,
55 'geni_ad_rspec_versions': ad_rspec_versions,
57 sm_version=version_core(version_more)
58 # local aggregate if present needs to have localhost resolved
59 if api.hrn in api.aggregates:
60 local_am_url=api.aggregates[api.hrn].get_url()
61 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
64 def drop_slicemgr_stats(self, rspec):
66 stats_elements = rspec.xml.xpath('//statistics')
67 for node in stats_elements:
68 node.getparent().remove(node)
70 logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
72 def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None):
74 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
76 stats_tag = stats_tags[0]
78 stats_tag = rspec.xml.root.add_element("statistics", call=callname)
80 stat_tag = stats_tag.add_element("aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
83 exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1]))
85 # formats the traceback as one big text blob
86 #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2]))
88 # formats the traceback as a set of xml elements
89 tb = traceback.extract_tb(exc_info[2])
91 exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]), line=str(item[1]), func=str(item[2]), code=str(item[3]))
94 logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
96 def ListResources(self, api, creds, options={}):
97 version_manager = VersionManager()
98 def _ListResources(aggregate, server, credential, opts={}):
101 args = [credential, my_opts]
104 version = api.get_cached_server_version(server)
105 # force ProtoGENI aggregates to give us a v2 RSpec
106 if 'sfa' in version.keys():
107 my_opts['rspec_version'] = version_manager.get_version('SFA 1').to_dict()
109 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
110 rspec = server.ListResources(*args)
111 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
113 api.logger.log_exc("ListResources failed at %s" %(server.url))
114 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
115 call_id = options.get('call_id')
116 if Callids().already_handled(call_id): return ""
118 # get slice's hrn from options
119 xrn = options.get('geni_slice_urn', '')
120 (hrn, type) = urn_to_hrn(xrn)
121 if 'geni_compressed' in options:
122 del(options['geni_compressed'])
124 # get the rspec's return format from options
125 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
126 version_string = "rspec_%s" % (rspec_version)
128 # look in cache first
129 if self.caching and api.cache and not xrn:
130 rspec = api.cache.get(version_string)
134 # get the callers hrn
135 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
136 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
138 # attempt to use delegated credential first
139 cred = api.getDelegatedCredential(creds)
141 cred = api.getCredential()
142 threads = ThreadManager()
143 for aggregate in api.aggregates:
144 # prevent infinite loop. Dont send request back to caller
145 # unless the caller is the aggregate's SM
146 if caller_hrn == aggregate and aggregate != api.hrn:
149 # get the rspec from the aggregate
150 interface = api.aggregates[aggregate]
151 server = api.server_proxy(interface, cred)
152 threads.run(_ListResources, aggregate, server, [cred], options)
155 results = threads.get_results()
156 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
158 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
160 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
161 rspec = RSpec(version=result_version)
162 for result in results:
163 self.add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
164 if result["status"]=="success":
166 rspec.version.merge(ReturnValue.get_value(result["rspec"]))
168 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
171 if self.caching and api.cache and not xrn:
172 api.cache.add(version_string, rspec.toxml())
177 def CreateSliver(self, api, xrn, creds, rspec_str, users, options={}):
179 version_manager = VersionManager()
180 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, options={}):
183 # Need to call GetVersion at an aggregate to determine the supported
184 # rspec type/format beofre calling CreateSliver at an Aggregate.
185 server_version = api.get_cached_server_version(server)
186 requested_users = users
187 if 'sfa' not in server_version and 'geni_api' in server_version:
188 # sfa aggregtes support both sfa and pg rspecs, no need to convert
189 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
190 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
191 filter = {'component_manager_id': server_version['urn']}
193 rspec = rspec.toxml()
194 requested_users = sfa_to_pg_users_arg(users)
195 args = [xrn, credential, rspec, requested_users]
196 if self._options_supported(api, server):
198 rspec = server.CreateSliver(*args)
199 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
201 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
202 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
204 call_id = options.get('call_id')
205 if Callids().already_handled(call_id): return ""
206 # Validate the RSpec against PlanetLab's schema --disabled for now
207 # The schema used here needs to aggregate the PL and VINI schemas
208 # schema = "/var/www/html/schemas/pl.rng"
209 rspec = RSpec(rspec_str)
212 # rspec.validate(schema)
214 # if there is a <statistics> section, the aggregates don't care about it,
216 self.drop_slicemgr_stats(rspec)
218 # attempt to use delegated credential first
219 cred = api.getDelegatedCredential(creds)
221 cred = api.getCredential()
223 # get the callers hrn
224 hrn, type = urn_to_hrn(xrn)
225 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
226 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
227 threads = ThreadManager()
228 for aggregate in api.aggregates:
229 # prevent infinite loop. Dont send request back to caller
230 # unless the caller is the aggregate's SM
231 if caller_hrn == aggregate and aggregate != api.hrn:
233 interface = api.aggregates[aggregate]
234 server = api.server_proxy(interface, cred)
235 # Just send entire RSpec to each aggregate
236 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id)
238 results = threads.get_results()
239 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
240 result_rspec = RSpec(version=manifest_version)
241 for result in results:
242 self.add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
243 if result["status"]=="success":
245 result_rspec.version.merge(ReturnValue.get_value(result["rspec"]))
247 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
248 return result_rspec.toxml()
250 def RenewSliver(self, api, xrn, creds, expiration_time, options={}):
251 def _RenewSliver(server, xrn, creds, expiration_time, options={}):
252 server_version = api.get_cached_server_version(server)
253 args = [xrn, creds, expiration_time]
254 if self._options_supported(api, server):
256 return server.RenewSliver(*args)
258 call_id = options.get('call_id')
259 if Callids().already_handled(call_id): return True
261 (hrn, type) = urn_to_hrn(xrn)
262 # get the callers hrn
263 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
264 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
266 # attempt to use delegated credential first
267 cred = api.getDelegatedCredential(creds)
269 cred = api.getCredential()
270 threads = ThreadManager()
271 for aggregate in api.aggregates:
272 # prevent infinite loop. Dont send request back to caller
273 # unless the caller is the aggregate's SM
274 if caller_hrn == aggregate and aggregate != api.hrn:
276 interface = api.aggregates[aggregate]
277 server = api.server_proxy(interface, cred)
278 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id)
280 results = [ReturnValue.get_value(result) for result in threads.get_results()]
281 return reduce (lambda x,y: x and y, results , True)
283 def DeleteSliver(self, api, xrn, creds, options={}):
284 def _DeleteSliver(server, xrn, creds, options={}):
285 server_version = api.get_cached_server_version(server)
287 if self._options_supported(api, server):
289 return server.DeleteSliver(*args)
291 call_id = options.get('call_id')
292 if Callids().already_handled(call_id): return ""
293 (hrn, type) = urn_to_hrn(xrn)
294 # get the callers hrn
295 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
296 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
298 # attempt to use delegated credential first
299 cred = api.getDelegatedCredential(creds)
301 cred = api.getCredential()
302 threads = ThreadManager()
303 for aggregate in api.aggregates:
304 # prevent infinite loop. Dont send request back to caller
305 # unless the caller is the aggregate's SM
306 if caller_hrn == aggregate and aggregate != api.hrn:
308 interface = api.aggregates[aggregate]
309 server = api.server_proxy(interface, cred)
310 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
311 threads.get_results()
315 # first draft at a merging SliverStatus
316 def SliverStatus(self, api, slice_xrn, creds, options={}):
317 def _SliverStatus(server, xrn, creds, options={}):
318 server_version = api.get_cached_server_version(server)
320 if self._options_supported(api, server):
322 return server.SliverStatus(*args)
324 call_id = options.get('call_id')
325 if Callids().already_handled(call_id): return {}
326 # attempt to use delegated credential first
327 cred = api.getDelegatedCredential(creds)
329 cred = api.getCredential()
330 threads = ThreadManager()
331 for aggregate in api.aggregates:
332 interface = api.aggregates[aggregate]
333 server = api.server_proxy(interface, cred)
334 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
335 results = [ReturnValue.get_value(result) for result in threads.get_results()]
337 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
338 results = [ result for result in results if result and result['geni_resources']]
340 # do not try to combine if there's no result
341 if not results : return {}
343 # otherwise let's merge stuff
346 # mmh, it is expected that all results carry the same urn
347 overall['geni_urn'] = results[0]['geni_urn']
348 overall['pl_login'] = results[0]['pl_login']
349 # append all geni_resources
350 overall['geni_resources'] = \
351 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
352 overall['status'] = 'unknown'
353 if overall['geni_resources']:
354 overall['status'] = 'ready'
358 def ListSlices(self, api, creds, options={}):
359 def _ListSlices(server, creds, options={}):
360 server_version = api.get_cached_server_version(server)
362 if self._options_supported(api, server):
364 return server.ListSlices(*args)
366 call_id = options.get('call_id')
367 if Callids().already_handled(call_id): return []
369 # look in cache first
370 if self.caching and api.cache:
371 slices = api.cache.get('slices')
375 # get the callers hrn
376 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
377 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
379 # attempt to use delegated credential first
380 cred= api.getDelegatedCredential(creds)
382 cred = api.getCredential()
383 threads = ThreadManager()
384 # fetch from aggregates
385 for aggregate in api.aggregates:
386 # prevent infinite loop. Dont send request back to caller
387 # unless the caller is the aggregate's SM
388 if caller_hrn == aggregate and aggregate != api.hrn:
390 interface = api.aggregates[aggregate]
391 server = api.server_proxy(interface, cred)
392 threads.run(_ListSlices, server, [cred], options)
395 results = [ReturnValue.get_value(result) for result in threads.get_results()]
397 for result in results:
398 slices.extend(result)
401 if self.caching and api.cache:
402 api.cache.add('slices', slices)
407 def GetTicket(self, api, xrn, creds, rspec, users, options={}):
408 slice_hrn, type = urn_to_hrn(xrn)
409 # get the netspecs contained within the clients rspec
410 aggregate_rspecs = {}
411 tree= etree.parse(StringIO(rspec))
412 elements = tree.findall('./network')
413 for element in elements:
414 aggregate_hrn = element.values()[0]
415 aggregate_rspecs[aggregate_hrn] = rspec
417 # get the callers hrn
418 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
419 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
421 # attempt to use delegated credential first
422 cred = api.getDelegatedCredential(creds)
424 cred = api.getCredential()
425 threads = ThreadManager()
426 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
427 # prevent infinite loop. Dont send request back to caller
428 # unless the caller is the aggregate's SM
429 if caller_hrn == aggregate and aggregate != api.hrn:
432 interface = api.aggregates[aggregate]
433 server = api.server_proxy(interface, cred)
434 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
436 results = threads.get_results()
438 # gather information from each ticket
443 for result in results:
444 agg_ticket = SfaTicket(string=result)
445 attrs = agg_ticket.get_attributes()
447 object_gid = agg_ticket.get_gid_object()
449 rspec = RSpec(agg_ticket.get_rspec())
451 rspec.version.merge(agg_ticket.get_rspec())
452 initscripts.extend(attrs.get('initscripts', []))
453 slivers.extend(attrs.get('slivers', []))
456 attributes = {'initscripts': initscripts,
459 # create a new ticket
460 ticket = SfaTicket(subject = slice_hrn)
461 ticket.set_gid_caller(api.auth.client_gid)
462 ticket.set_issuer(key=api.key, subject=api.hrn)
463 ticket.set_gid_object(object_gid)
464 ticket.set_pubkey(object_gid.get_pubkey())
465 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
466 ticket.set_attributes(attributes)
467 ticket.set_rspec(rspec.toxml())
470 return ticket.save_to_string(save_parents=True)
472 def start_slice(self, api, xrn, creds):
473 hrn, type = urn_to_hrn(xrn)
475 # get the callers hrn
476 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
477 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
479 # attempt to use delegated credential first
480 cred = api.getDelegatedCredential(creds)
482 cred = api.getCredential()
483 threads = ThreadManager()
484 for aggregate in api.aggregates:
485 # prevent infinite loop. Dont send request back to caller
486 # unless the caller is the aggregate's SM
487 if caller_hrn == aggregate and aggregate != api.hrn:
489 interface = api.aggregates[aggregate]
490 server = api.server_proxy(interface, cred)
491 threads.run(server.Start, xrn, cred)
492 threads.get_results()
495 def stop_slice(self, api, xrn, creds):
496 hrn, type = urn_to_hrn(xrn)
498 # get the callers hrn
499 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
500 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
502 # attempt to use delegated credential first
503 cred = api.getDelegatedCredential(creds)
505 cred = api.getCredential()
506 threads = ThreadManager()
507 for aggregate in api.aggregates:
508 # prevent infinite loop. Dont send request back to caller
509 # unless the caller is the aggregate's SM
510 if caller_hrn == aggregate and aggregate != api.hrn:
512 interface = api.aggregates[aggregate]
513 server = api.server_proxy(interface, cred)
514 threads.run(server.Stop, xrn, cred)
515 threads.get_results()
518 def reset_slice(self, api, xrn):
524 def shutdown(self, api, xrn, creds):
530 def status(self, api, xrn, creds):