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 def GetVersion(self, api, options={}):
46 # peers explicitly in aggregates.xml
47 peers =dict ([ (peername,interface.get_url()) for (peername,interface) in api.aggregates.iteritems()
48 if peername != api.hrn])
49 version_manager = VersionManager()
50 ad_rspec_versions = []
51 request_rspec_versions = []
52 for rspec_version in version_manager.versions:
53 if rspec_version.content_type in ['*', 'ad']:
54 ad_rspec_versions.append(rspec_version.to_dict())
55 if rspec_version.content_type in ['*', 'request']:
56 request_rspec_versions.append(rspec_version.to_dict())
57 xrn=Xrn(api.hrn, 'authority+sa')
58 version_more = {'interface':'slicemgr',
60 'geni_api': api.config.SFA_AGGREGATE_API_VERSION,
61 'hrn' : xrn.get_hrn(),
62 'urn' : xrn.get_urn(),
64 'geni_request_rspec_versions': request_rspec_versions,
65 'geni_ad_rspec_versions': ad_rspec_versions,
67 sm_version=version_core(version_more)
68 # local aggregate if present needs to have localhost resolved
69 if api.hrn in api.aggregates:
70 local_am_url=api.aggregates[api.hrn].get_url()
71 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
74 def drop_slicemgr_stats(self, rspec):
76 stats_elements = rspec.xml.xpath('//statistics')
77 for node in stats_elements:
78 node.getparent().remove(node)
80 logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
82 def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None):
84 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
86 stats_tag = stats_tags[0]
88 stats_tag = rspec.xml.root.add_element("statistics", call=callname)
90 stat_tag = stats_tag.add_element("aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
93 exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1]))
95 # formats the traceback as one big text blob
96 #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2]))
98 # formats the traceback as a set of xml elements
99 tb = traceback.extract_tb(exc_info[2])
101 exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]), line=str(item[1]), func=str(item[2]), code=str(item[3]))
104 logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
106 def ListResources(self, api, creds, options={}):
107 version_manager = VersionManager()
108 def _ListResources(aggregate, server, credential, opts={}):
111 args = [credential, my_opts]
114 version = api.get_cached_server_version(server)
115 # force ProtoGENI aggregates to give us a v2 RSpec
116 if 'sfa' in version.keys():
117 my_opts['rspec_version'] = version_manager.get_version('SFA 1').to_dict()
119 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
120 rspec = server.ListResources(*args)
121 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
123 api.logger.log_exc("ListResources failed at %s" %(server.url))
124 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
125 call_id = options.get('call_id')
126 if Callids().already_handled(call_id): return ""
128 # get slice's hrn from options
129 xrn = options.get('geni_slice_urn', '')
130 (hrn, type) = urn_to_hrn(xrn)
131 if 'geni_compressed' in options:
132 del(options['geni_compressed'])
134 # get the rspec's return format from options
135 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
136 version_string = "rspec_%s" % (rspec_version)
138 # look in cache first
139 if self.caching and api.cache and not xrn:
140 rspec = api.cache.get(version_string)
144 # get the callers hrn
145 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
146 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
148 # attempt to use delegated credential first
149 cred = api.getDelegatedCredential(creds)
151 cred = api.getCredential()
152 threads = ThreadManager()
153 for aggregate in api.aggregates:
154 # prevent infinite loop. Dont send request back to caller
155 # unless the caller is the aggregate's SM
156 if caller_hrn == aggregate and aggregate != api.hrn:
159 # get the rspec from the aggregate
160 interface = api.aggregates[aggregate]
161 server = api.server_proxy(interface, cred)
162 threads.run(_ListResources, aggregate, server, [cred], options)
165 results = threads.get_results()
166 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
168 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
170 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
171 rspec = RSpec(version=result_version)
172 for result in results:
173 self.add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
174 if result["status"]=="success":
176 rspec.version.merge(ReturnValue.get_value(result["rspec"]))
178 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
181 if self.caching and api.cache and not xrn:
182 api.cache.add(version_string, rspec.toxml())
187 def CreateSliver(self, api, xrn, creds, rspec_str, users, options={}):
189 version_manager = VersionManager()
190 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, options={}):
193 # Need to call GetVersion at an aggregate to determine the supported
194 # rspec type/format beofre calling CreateSliver at an Aggregate.
195 server_version = api.get_cached_server_version(server)
196 requested_users = users
197 if 'sfa' not in server_version and 'geni_api' in server_version:
198 # sfa aggregtes support both sfa and pg rspecs, no need to convert
199 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
200 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
201 filter = {'component_manager_id': server_version['urn']}
203 rspec = rspec.toxml()
204 requested_users = sfa_to_pg_users_arg(users)
205 args = [xrn, credential, rspec, requested_users]
206 if self._options_supported(api, server):
208 rspec = server.CreateSliver(*args)
209 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
211 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
212 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
214 call_id = options.get('call_id')
215 if Callids().already_handled(call_id): return ""
216 # Validate the RSpec against PlanetLab's schema --disabled for now
217 # The schema used here needs to aggregate the PL and VINI schemas
218 # schema = "/var/www/html/schemas/pl.rng"
219 rspec = RSpec(rspec_str)
222 # rspec.validate(schema)
224 # if there is a <statistics> section, the aggregates don't care about it,
226 self.drop_slicemgr_stats(rspec)
228 # attempt to use delegated credential first
229 cred = api.getDelegatedCredential(creds)
231 cred = api.getCredential()
233 # get the callers hrn
234 hrn, type = urn_to_hrn(xrn)
235 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
236 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
237 threads = ThreadManager()
238 for aggregate in api.aggregates:
239 # prevent infinite loop. Dont send request back to caller
240 # unless the caller is the aggregate's SM
241 if caller_hrn == aggregate and aggregate != api.hrn:
243 interface = api.aggregates[aggregate]
244 server = api.server_proxy(interface, cred)
245 # Just send entire RSpec to each aggregate
246 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id)
248 results = threads.get_results()
249 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
250 result_rspec = RSpec(version=manifest_version)
251 for result in results:
252 self.add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"], result.get("exc_info",None))
253 if result["status"]=="success":
255 result_rspec.version.merge(ReturnValue.get_value(result["rspec"]))
257 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
258 return result_rspec.toxml()
260 def RenewSliver(self, api, xrn, creds, expiration_time, options={}):
261 def _RenewSliver(server, xrn, creds, expiration_time, options={}):
262 server_version = api.get_cached_server_version(server)
263 args = [xrn, creds, expiration_time]
264 if self._options_supported(api, server):
266 return server.RenewSliver(*args)
268 call_id = options.get('call_id')
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.server_proxy(interface, cred)
288 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id)
290 results = [ReturnValue.get_value(result) for result in threads.get_results()]
291 return reduce (lambda x,y: x and y, results , True)
293 def DeleteSliver(self, api, xrn, creds, options={}):
294 def _DeleteSliver(server, xrn, creds, options={}):
295 server_version = api.get_cached_server_version(server)
297 if self._options_supported(api, server):
299 return server.DeleteSliver(*args)
301 call_id = options.get('call_id')
302 if Callids().already_handled(call_id): return ""
303 (hrn, type) = urn_to_hrn(xrn)
304 # get the callers hrn
305 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
306 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
308 # attempt to use delegated credential first
309 cred = api.getDelegatedCredential(creds)
311 cred = api.getCredential()
312 threads = ThreadManager()
313 for aggregate in api.aggregates:
314 # prevent infinite loop. Dont send request back to caller
315 # unless the caller is the aggregate's SM
316 if caller_hrn == aggregate and aggregate != api.hrn:
318 interface = api.aggregates[aggregate]
319 server = api.server_proxy(interface, cred)
320 threads.run(_DeleteSliver, server, xrn, [cred], call_id)
321 threads.get_results()
325 # first draft at a merging SliverStatus
326 def SliverStatus(self, api, slice_xrn, creds, options={}):
327 def _SliverStatus(server, xrn, creds, options={}):
328 server_version = api.get_cached_server_version(server)
330 if self._options_supported(api, server):
332 return server.SliverStatus(*args)
334 call_id = options.get('call_id')
335 if Callids().already_handled(call_id): return {}
336 # attempt to use delegated credential first
337 cred = api.getDelegatedCredential(creds)
339 cred = api.getCredential()
340 threads = ThreadManager()
341 for aggregate in api.aggregates:
342 interface = api.aggregates[aggregate]
343 server = api.server_proxy(interface, cred)
344 threads.run (_SliverStatus, server, slice_xrn, [cred], call_id)
345 results = [ReturnValue.get_value(result) for result in threads.get_results()]
347 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
348 results = [ result for result in results if result and result['geni_resources']]
350 # do not try to combine if there's no result
351 if not results : return {}
353 # otherwise let's merge stuff
356 # mmh, it is expected that all results carry the same urn
357 overall['geni_urn'] = results[0]['geni_urn']
358 overall['pl_login'] = results[0]['pl_login']
359 # append all geni_resources
360 overall['geni_resources'] = \
361 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
362 overall['status'] = 'unknown'
363 if overall['geni_resources']:
364 overall['status'] = 'ready'
368 def ListSlices(self, api, creds, options={}):
369 def _ListSlices(server, creds, options={}):
370 server_version = api.get_cached_server_version(server)
372 if self._options_supported(api, server):
374 return server.ListSlices(*args)
376 call_id = options.get('call_id')
377 if Callids().already_handled(call_id): return []
379 # look in cache first
380 if self.caching and api.cache:
381 slices = api.cache.get('slices')
385 # get the callers hrn
386 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
387 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
389 # attempt to use delegated credential first
390 cred= api.getDelegatedCredential(creds)
392 cred = api.getCredential()
393 threads = ThreadManager()
394 # fetch from aggregates
395 for aggregate in api.aggregates:
396 # prevent infinite loop. Dont send request back to caller
397 # unless the caller is the aggregate's SM
398 if caller_hrn == aggregate and aggregate != api.hrn:
400 interface = api.aggregates[aggregate]
401 server = api.server_proxy(interface, cred)
402 threads.run(_ListSlices, server, [cred], options)
405 results = [ReturnValue.get_value(result) for result in threads.get_results()]
407 for result in results:
408 slices.extend(result)
411 if self.caching and api.cache:
412 api.cache.add('slices', slices)
417 def GetTicket(self, api, xrn, creds, rspec, users, options={}):
418 slice_hrn, type = urn_to_hrn(xrn)
419 # get the netspecs contained within the clients rspec
420 aggregate_rspecs = {}
421 tree= etree.parse(StringIO(rspec))
422 elements = tree.findall('./network')
423 for element in elements:
424 aggregate_hrn = element.values()[0]
425 aggregate_rspecs[aggregate_hrn] = rspec
427 # get the callers hrn
428 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
429 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
431 # attempt to use delegated credential first
432 cred = api.getDelegatedCredential(creds)
434 cred = api.getCredential()
435 threads = ThreadManager()
436 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
437 # prevent infinite loop. Dont send request back to caller
438 # unless the caller is the aggregate's SM
439 if caller_hrn == aggregate and aggregate != api.hrn:
442 interface = api.aggregates[aggregate]
443 server = api.server_proxy(interface, cred)
444 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
446 results = threads.get_results()
448 # gather information from each ticket
453 for result in results:
454 agg_ticket = SfaTicket(string=result)
455 attrs = agg_ticket.get_attributes()
457 object_gid = agg_ticket.get_gid_object()
459 rspec = RSpec(agg_ticket.get_rspec())
461 rspec.version.merge(agg_ticket.get_rspec())
462 initscripts.extend(attrs.get('initscripts', []))
463 slivers.extend(attrs.get('slivers', []))
466 attributes = {'initscripts': initscripts,
469 # create a new ticket
470 ticket = SfaTicket(subject = slice_hrn)
471 ticket.set_gid_caller(api.auth.client_gid)
472 ticket.set_issuer(key=api.key, subject=api.hrn)
473 ticket.set_gid_object(object_gid)
474 ticket.set_pubkey(object_gid.get_pubkey())
475 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
476 ticket.set_attributes(attributes)
477 ticket.set_rspec(rspec.toxml())
480 return ticket.save_to_string(save_parents=True)
482 def start_slice(self, api, xrn, creds):
483 hrn, type = urn_to_hrn(xrn)
485 # get the callers hrn
486 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
487 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
489 # attempt to use delegated credential first
490 cred = api.getDelegatedCredential(creds)
492 cred = api.getCredential()
493 threads = ThreadManager()
494 for aggregate in api.aggregates:
495 # prevent infinite loop. Dont send request back to caller
496 # unless the caller is the aggregate's SM
497 if caller_hrn == aggregate and aggregate != api.hrn:
499 interface = api.aggregates[aggregate]
500 server = api.server_proxy(interface, cred)
501 threads.run(server.Start, xrn, cred)
502 threads.get_results()
505 def stop_slice(self, api, xrn, creds):
506 hrn, type = urn_to_hrn(xrn)
508 # get the callers hrn
509 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
510 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
512 # attempt to use delegated credential first
513 cred = api.getDelegatedCredential(creds)
515 cred = api.getCredential()
516 threads = ThreadManager()
517 for aggregate in api.aggregates:
518 # prevent infinite loop. Dont send request back to caller
519 # unless the caller is the aggregate's SM
520 if caller_hrn == aggregate and aggregate != api.hrn:
522 interface = api.aggregates[aggregate]
523 server = api.server_proxy(interface, cred)
524 threads.run(server.Stop, xrn, cred)
525 threads.get_results()
528 def reset_slice(self, api, xrn):
534 def shutdown(self, api, xrn, creds):
540 def status(self, api, xrn, creds):