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 GetVersion(self, api):
29 # peers explicitly in aggregates.xml
30 peers =dict ([ (peername,interface.get_url()) for (peername,interface) in api.aggregates.iteritems()
31 if peername != api.hrn])
32 version_manager = VersionManager()
33 ad_rspec_versions = []
34 request_rspec_versions = []
35 for rspec_version in version_manager.versions:
36 if rspec_version.content_type in ['*', 'ad']:
37 ad_rspec_versions.append(rspec_version.to_dict())
38 if rspec_version.content_type in ['*', 'request']:
39 request_rspec_versions.append(rspec_version.to_dict())
40 xrn=Xrn(api.hrn, 'authority+sa')
41 version_more = {'interface':'slicemgr',
43 'geni_api': api.config.SFA_AGGREGATE_API_VERSION,
44 'hrn' : xrn.get_hrn(),
45 'urn' : xrn.get_urn(),
47 'geni_request_rspec_versions': request_rspec_versions,
48 'geni_ad_rspec_versions': ad_rspec_versions,
50 sm_version=version_core(version_more)
51 # local aggregate if present needs to have localhost resolved
52 if api.hrn in api.aggregates:
53 local_am_url=api.aggregates[api.hrn].get_url()
54 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
57 def drop_slicemgr_stats(self, rspec):
59 stats_elements = rspec.xml.xpath('//statistics')
60 for node in stats_elements:
61 node.getparent().remove(node)
63 logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
65 def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None):
67 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
69 stats_tag = stats_tags[0]
71 stats_tag = rspec.xml.root.add_element("statistics", call=callname)
73 stat_tag = stats_tag.add_element("aggregate", name=str(aggname),
74 elapsed=str(elapsed), status=str(status))
77 exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1]))
79 # formats the traceback as one big text blob
80 #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2]))
82 # formats the traceback as a set of xml elements
83 tb = traceback.extract_tb(exc_info[2])
85 exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]),
86 line=str(item[1]), func=str(item[2]), code=str(item[3]))
89 logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
91 def ListResources(self, api, creds, options):
92 call_id = options.get('call_id')
93 if Callids().already_handled(call_id): return ""
95 version_manager = VersionManager()
97 def _ListResources(aggregate, server, credential, options):
98 forward_options = copy(options)
101 version = api.get_cached_server_version(server)
102 # force ProtoGENI aggregates to give us a v2 RSpec
103 if 'sfa' in version.keys():
104 forward_options['rspec_version'] = version_manager.get_version('SFA 1').to_dict()
106 forward_options['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
107 rspec = server.ListResources(credential, forward_options)
108 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
110 api.logger.log_exc("ListResources failed at %s" %(server.url))
111 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
113 # get slice's hrn from options
114 xrn = options.get('geni_slice_urn', '')
115 (hrn, type) = urn_to_hrn(xrn)
116 if 'geni_compressed' in options:
117 del(options['geni_compressed'])
119 # get the rspec's return format from options
120 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
121 version_string = "rspec_%s" % (rspec_version)
123 # look in cache first
124 if self.caching and api.cache and not xrn:
125 rspec = api.cache.get(version_string)
129 # get the callers hrn
130 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
131 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
133 # attempt to use delegated credential first
134 cred = api.getDelegatedCredential(creds)
136 cred = api.getCredential()
137 threads = ThreadManager()
138 for aggregate in api.aggregates:
139 # prevent infinite loop. Dont send request back to caller
140 # unless the caller is the aggregate's SM
141 if caller_hrn == aggregate and aggregate != api.hrn:
144 # get the rspec from the aggregate
145 interface = api.aggregates[aggregate]
146 server = api.server_proxy(interface, cred)
147 threads.run(_ListResources, aggregate, server, [cred], options)
150 results = threads.get_results()
151 rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
153 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
155 result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad')
156 rspec = RSpec(version=result_version)
157 for result in results:
158 self.add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"],
159 result["status"], result.get("exc_info",None))
160 if result["status"]=="success":
162 rspec.version.merge(ReturnValue.get_value(result["rspec"]))
164 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
167 if self.caching and api.cache and not xrn:
168 api.cache.add(version_string, rspec.toxml())
173 def CreateSliver(self, api, xrn, creds, rspec_str, users, options):
174 call_id = options.get('call_id')
175 if Callids().already_handled(call_id): return ""
177 version_manager = VersionManager()
178 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, options):
181 # Need to call GetVersion at an aggregate to determine the supported
182 # rspec type/format beofre calling CreateSliver at an Aggregate.
183 server_version = api.get_cached_server_version(server)
184 requested_users = users
185 if 'sfa' not in server_version and 'geni_api' in server_version:
186 # sfa aggregtes support both sfa and pg rspecs, no need to convert
187 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
188 rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request'))
189 filter = {'component_manager_id': server_version['urn']}
191 rspec = rspec.toxml()
192 requested_users = sfa_to_pg_users_arg(users)
193 rspec = server.CreateSliver(xrn, credential, rspec, requested_users, options)
194 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
196 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
197 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()}
199 # Validate the RSpec against PlanetLab's schema --disabled for now
200 # The schema used here needs to aggregate the PL and VINI schemas
201 # schema = "/var/www/html/schemas/pl.rng"
202 rspec = RSpec(rspec_str)
205 # rspec.validate(schema)
207 # if there is a <statistics> section, the aggregates don't care about it,
209 self.drop_slicemgr_stats(rspec)
211 # attempt to use delegated credential first
212 cred = api.getDelegatedCredential(creds)
214 cred = api.getCredential()
216 # get the callers hrn
217 hrn, type = urn_to_hrn(xrn)
218 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
219 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
220 threads = ThreadManager()
221 for aggregate in api.aggregates:
222 # prevent infinite loop. Dont send request back to caller
223 # unless the caller is the aggregate's SM
224 if caller_hrn == aggregate and aggregate != api.hrn:
226 interface = api.aggregates[aggregate]
227 server = api.server_proxy(interface, cred)
228 # Just send entire RSpec to each aggregate
229 threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, options)
231 results = threads.get_results()
232 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
233 result_rspec = RSpec(version=manifest_version)
234 for result in results:
235 self.add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"],
236 result["status"], result.get("exc_info",None))
237 if result["status"]=="success":
239 result_rspec.version.merge(ReturnValue.get_value(result["rspec"]))
241 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
242 return result_rspec.toxml()
244 def RenewSliver(self, api, xrn, creds, expiration_time, options):
245 call_id = options.get('call_id')
246 if Callids().already_handled(call_id): return True
248 def _RenewSliver(server, xrn, creds, expiration_time, options):
249 return server.RenewSliver(xrn, creds, expiration_time, options)
251 (hrn, type) = urn_to_hrn(xrn)
252 # get the callers hrn
253 valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
254 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
256 # attempt to use delegated credential first
257 cred = api.getDelegatedCredential(creds)
259 cred = api.getCredential()
260 threads = ThreadManager()
261 for aggregate in api.aggregates:
262 # prevent infinite loop. Dont send request back to caller
263 # unless the caller is the aggregate's SM
264 if caller_hrn == aggregate and aggregate != api.hrn:
266 interface = api.aggregates[aggregate]
267 server = api.server_proxy(interface, cred)
268 threads.run(_RenewSliver, server, xrn, [cred], expiration_time, options)
270 results = [ReturnValue.get_value(result) for result in threads.get_results()]
271 return reduce (lambda x,y: x and y, results , True)
273 def DeleteSliver(self, api, xrn, creds, options):
274 call_id = options.get('call_id')
275 if Callids().already_handled(call_id): return ""
277 def _DeleteSliver(server, xrn, creds, options):
278 return server.DeleteSliver(xrn, creds, options)
280 (hrn, type) = urn_to_hrn(xrn)
281 # get the callers hrn
282 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', 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(_DeleteSliver, server, xrn, [cred], options)
298 threads.get_results()
302 # first draft at a merging SliverStatus
303 def SliverStatus(self, api, slice_xrn, creds, options):
304 def _SliverStatus(server, xrn, creds, options):
305 return server.SliverStatus(xrn, creds, options)
307 call_id = options.get('call_id')
308 if Callids().already_handled(call_id): return {}
309 # attempt to use delegated credential first
310 cred = api.getDelegatedCredential(creds)
312 cred = api.getCredential()
313 threads = ThreadManager()
314 for aggregate in api.aggregates:
315 interface = api.aggregates[aggregate]
316 server = api.server_proxy(interface, cred)
317 threads.run (_SliverStatus, server, slice_xrn, [cred], options)
318 results = [ReturnValue.get_value(result) for result in threads.get_results()]
320 # get rid of any void result - e.g. when call_id was hit, where by convention we return {}
321 results = [ result for result in results if result and result['geni_resources']]
323 # do not try to combine if there's no result
324 if not results : return {}
326 # otherwise let's merge stuff
329 # mmh, it is expected that all results carry the same urn
330 overall['geni_urn'] = results[0]['geni_urn']
331 overall['pl_login'] = results[0]['pl_login']
332 # append all geni_resources
333 overall['geni_resources'] = \
334 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
335 overall['status'] = 'unknown'
336 if overall['geni_resources']:
337 overall['status'] = 'ready'
341 def ListSlices(self, api, creds, options):
342 call_id = options.get('call_id')
343 if Callids().already_handled(call_id): return []
345 def _ListSlices(server, creds, options):
346 return server.ListSlices(creds, options)
348 # look in cache first
349 if self.caching and api.cache:
350 slices = api.cache.get('slices')
354 # get the callers hrn
355 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
356 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
358 # attempt to use delegated credential first
359 cred= api.getDelegatedCredential(creds)
361 cred = api.getCredential()
362 threads = ThreadManager()
363 # fetch from aggregates
364 for aggregate in api.aggregates:
365 # prevent infinite loop. Dont send request back to caller
366 # unless the caller is the aggregate's SM
367 if caller_hrn == aggregate and aggregate != api.hrn:
369 interface = api.aggregates[aggregate]
370 server = api.server_proxy(interface, cred)
371 threads.run(_ListSlices, server, [cred], options)
374 results = [ReturnValue.get_value(result) for result in threads.get_results()]
376 for result in results:
377 slices.extend(result)
380 if self.caching and api.cache:
381 api.cache.add('slices', slices)
386 def GetTicket(self, api, xrn, creds, rspec, users, options):
387 slice_hrn, type = urn_to_hrn(xrn)
388 # get the netspecs contained within the clients rspec
389 aggregate_rspecs = {}
390 tree= etree.parse(StringIO(rspec))
391 elements = tree.findall('./network')
392 for element in elements:
393 aggregate_hrn = element.values()[0]
394 aggregate_rspecs[aggregate_hrn] = rspec
396 # get the callers hrn
397 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
398 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
400 # attempt to use delegated credential first
401 cred = api.getDelegatedCredential(creds)
403 cred = api.getCredential()
404 threads = ThreadManager()
405 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
406 # xxx sounds like using call_id here would be safer
407 # prevent infinite loop. Dont send request back to caller
408 # unless the caller is the aggregate's SM
409 if caller_hrn == aggregate and aggregate != api.hrn:
412 interface = api.aggregates[aggregate]
413 server = api.server_proxy(interface, cred)
414 threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
416 results = threads.get_results()
418 # gather information from each ticket
423 for result in results:
424 agg_ticket = SfaTicket(string=result)
425 attrs = agg_ticket.get_attributes()
427 object_gid = agg_ticket.get_gid_object()
429 rspec = RSpec(agg_ticket.get_rspec())
431 rspec.version.merge(agg_ticket.get_rspec())
432 initscripts.extend(attrs.get('initscripts', []))
433 slivers.extend(attrs.get('slivers', []))
436 attributes = {'initscripts': initscripts,
439 # create a new ticket
440 ticket = SfaTicket(subject = slice_hrn)
441 ticket.set_gid_caller(api.auth.client_gid)
442 ticket.set_issuer(key=api.key, subject=api.hrn)
443 ticket.set_gid_object(object_gid)
444 ticket.set_pubkey(object_gid.get_pubkey())
445 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
446 ticket.set_attributes(attributes)
447 ticket.set_rspec(rspec.toxml())
450 return ticket.save_to_string(save_parents=True)
452 def start_slice(self, api, xrn, creds):
453 hrn, type = urn_to_hrn(xrn)
455 # get the callers hrn
456 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
457 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
459 # attempt to use delegated credential first
460 cred = api.getDelegatedCredential(creds)
462 cred = api.getCredential()
463 threads = ThreadManager()
464 for aggregate in api.aggregates:
465 # prevent infinite loop. Dont send request back to caller
466 # unless the caller is the aggregate's SM
467 if caller_hrn == aggregate and aggregate != api.hrn:
469 interface = api.aggregates[aggregate]
470 server = api.server_proxy(interface, cred)
471 threads.run(server.Start, xrn, cred)
472 threads.get_results()
475 def stop_slice(self, api, xrn, creds):
476 hrn, type = urn_to_hrn(xrn)
478 # get the callers hrn
479 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
480 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
482 # attempt to use delegated credential first
483 cred = api.getDelegatedCredential(creds)
485 cred = api.getCredential()
486 threads = ThreadManager()
487 for aggregate in api.aggregates:
488 # prevent infinite loop. Dont send request back to caller
489 # unless the caller is the aggregate's SM
490 if caller_hrn == aggregate and aggregate != api.hrn:
492 interface = api.aggregates[aggregate]
493 server = api.server_proxy(interface, cred)
494 threads.run(server.Stop, xrn, cred)
495 threads.get_results()
498 def reset_slice(self, api, xrn):
504 def shutdown(self, api, xrn, creds):
510 def status(self, api, xrn, creds):