4 from StringIO import StringIO
5 from types import StringTypes
6 from copy import deepcopy
10 from sfa.util.sfalogging import logger
11 from sfa.util.rspecHelper import merge_rspecs
12 from sfa.util.xrn import Xrn, urn_to_hrn, hrn_to_urn
13 from sfa.util.plxrn import hrn_to_pl_slicename
14 from sfa.util.rspec import *
15 from sfa.util.specdict import *
16 from sfa.util.faults import *
17 from sfa.util.record import SfaRecord
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.util.policy import Policy
22 from sfa.util.prefixTree import prefixTree
23 from sfa.util.sfaticket import *
24 from sfa.trust.credential import Credential
25 from sfa.util.threadmanager import ThreadManager
26 import sfa.util.xmlrpcprotocol as xmlrpcprotocol
27 import sfa.plc.peers as peers
28 from sfa.util.version import version_core
29 from sfa.util.callids import Callids
32 def _call_id_supported(api, server):
34 Returns true if server support the optional call_id arg, false otherwise.
36 server_version = api.get_cached_server_version(server)
38 if 'sfa' in server_version:
39 code_tag = server_version['code_tag']
40 code_tag_parts = code_tag.split("-")
42 version_parts = code_tag_parts[0].split(".")
43 major, minor = version_parts[0:2]
44 rev = code_tag_parts[1]
46 if int(minor) > 0 or int(rev) > 20:
50 # we have specialized xmlrpclib.ServerProxy to remember the input url
51 # OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
52 def get_serverproxy_url (server):
56 logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
57 return server._ServerProxy__host + server._ServerProxy__handler
60 # peers explicitly in aggregates.xml
61 peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
62 if peername != api.hrn])
63 version_manager = VersionManager()
64 ad_rspec_versions = []
65 request_rspec_versions = []
66 for rspec_version in version_manager.versions:
67 if rspec_version in ['*', 'ad']:
68 request_rspec_versions.append(rspec_version.to_dict())
69 if rspec_version in ['*', 'request']:
70 request_rspec_version.append(rspec_version.to_dict())
71 default_rspec_version = version_manager.get_version("sfa 1").to_dict()
73 version_more = {'interface':'slicemgr',
74 'hrn' : xrn.get_hrn(),
75 'urn' : xrn.get_urn(),
77 'request_rspec_versions': request_rspec_versions,
78 'ad_rspec_versions': ad_rspec_versions,
79 'default_ad_rspec': default_rspec_version
81 sm_version=version_core(version_more)
82 # local aggregate if present needs to have localhost resolved
83 if api.hrn in api.aggregates:
84 local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
85 sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
88 def drop_slicemgr_stats(rspec):
90 stats_elements = rspec.xml.xpath('//statistics')
91 for node in stats_elements:
92 node.getparent().remove(node)
94 api.logger.warn("drop_slicemgr_stats failed: %s " % (str(e)))
96 def add_slicemgr_stat(rspec, callname, aggname, elapsed, status):
98 stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname)
100 stats_tag = stats_tags[0]
102 stats_tag = etree.SubElement(rspec.xml.root, "statistics", call=callname)
104 etree.SubElement(stats_tag, "aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status))
106 api.logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e)))
108 def ListResources(api, creds, options, call_id):
109 version_manager = VersionManager()
110 def _ListResources(aggregate, server, credential, opts, call_id):
113 args = [credential, my_opts]
116 if _call_id_supported(api, server):
118 version = api.get_cached_server_version(server)
119 # force ProtoGENI aggregates to give us a v2 RSpec
120 if 'sfa' not in version.keys():
121 my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict()
122 rspec = server.ListResources(*args)
123 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
125 api.logger.warn("ListResources failed at %s: %s" %(server.url, str(e)))
126 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
128 if Callids().already_handled(call_id): return ""
130 # get slice's hrn from options
131 xrn = options.get('geni_slice_urn', '')
132 (hrn, type) = urn_to_hrn(xrn)
133 if 'geni_compressed' in options:
134 del(options['geni_compressed'])
136 # get the rspec's return format from options
137 rspec_version = version_manager.get_version(options.get('rspec_version'))
138 version_string = "rspec_%s" % (rspec_version.to_string())
140 # look in cache first
141 if caching and api.cache and not xrn:
142 rspec = api.cache.get(version_string)
146 # get the callers hrn
147 valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
148 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
150 # attempt to use delegated credential first
151 credential = api.getDelegatedCredential(creds)
153 credential = api.getCredential()
154 credentials = [credential]
155 threads = ThreadManager()
156 for aggregate in api.aggregates:
157 # prevent infinite loop. Dont send request back to caller
158 # unless the caller is the aggregate's SM
159 if caller_hrn == aggregate and aggregate != api.hrn:
162 # get the rspec from the aggregate
163 server = api.aggregates[aggregate]
164 threads.run(_ListResources, aggregate, server, credentials, options, call_id)
166 results = threads.get_results()
167 rspec_version = version_manager.get_version(options.get('rspec_version'))
168 manifest_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest')
169 rspec = RSpec(version=manifest_version)
170 for result in results:
171 add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"])
172 if result["status"]=="success":
174 rspec.version.merge(result["rspec"])
176 api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec")
179 if caching and api.cache and not xrn:
180 api.cache.add(version_string, rspec.toxml())
185 def CreateSliver(api, xrn, creds, rspec_str, users, call_id):
187 version_manager = VersionManager()
188 def _CreateSliver(aggregate, server, xrn, credential, rspec, users, call_id):
191 # Need to call GetVersion at an aggregate to determine the supported
192 # rspec type/format beofre calling CreateSliver at an Aggregate.
193 server_version = api.get_cached_server_version(server)
194 if 'sfa' not in server_version and 'geni_api' in server_version:
195 # sfa aggregtes support both sfa and pg rspecs, no need to convert
196 # if aggregate supports sfa rspecs. otherwise convert to pg rspec
197 rspec = RSpecConverter.to_pg_rspec(rspec)
198 args = [xrn, credential, rspec, users]
199 if _call_id_supported(api, server):
201 rspec = server.CreateSliver(*args)
202 return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"}
204 logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url)
205 return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"}
207 if Callids().already_handled(call_id): return ""
208 # Validate the RSpec against PlanetLab's schema --disabled for now
209 # The schema used here needs to aggregate the PL and VINI schemas
210 # schema = "/var/www/html/schemas/pl.rng"
211 rspec = RSpec(rspec_str)
214 rspec.validate(schema)
216 # if there is a <statistics> section, the aggregates don't care about it,
218 drop_slicemgr_stats(rspec)
220 # attempt to use delegated credential first
221 credential = api.getDelegatedCredential(creds)
223 credential = api.getCredential()
225 # get the callers hrn
226 hrn, type = urn_to_hrn(xrn)
227 valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
228 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
229 threads = ThreadManager()
230 for aggregate in api.aggregates:
231 # prevent infinite loop. Dont send request back to caller
232 # unless the caller is the aggregate's SM
233 if caller_hrn == aggregate and aggregate != api.hrn:
235 server = api.aggregates[aggregate]
236 # Just send entire RSpec to each aggregate
237 threads.run(_CreateSliver, aggregate, server, xrn, credential, rspec.toxml(), users, call_id)
239 results = threads.get_results()
240 manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest')
241 result_rspec = RSpec(version=manifest_version)
242 for result in results:
243 add_slicemgr_stat(rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"])
244 if result["status"]=="success":
246 result_rspec.version.merge(result["rspec"])
248 api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec")
251 def RenewSliver(api, xrn, creds, expiration_time, call_id):
252 def _RenewSliver(server, xrn, creds, expiration_time, call_id):
253 server_version = api.get_cached_server_version(server)
254 args = [xrn, creds, expiration_time, call_id]
255 if _call_id_supported(api, server):
257 return server.RenewSliver(*args)
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 credential = api.getDelegatedCredential(creds)
269 credential = 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 server = api.aggregates[aggregate]
277 threads.run(_RenewSliver, server, xrn, [credential], expiration_time, call_id)
279 return reduce (lambda x,y: x and y, threads.get_results() , True)
281 def DeleteSliver(api, xrn, creds, call_id):
282 def _DeleteSliver(server, xrn, creds, call_id):
283 server_version = api.get_cached_server_version(server)
285 if _call_id_supported(api, server):
287 return server.DeleteSliver(*args)
289 if Callids().already_handled(call_id): return ""
290 (hrn, type) = urn_to_hrn(xrn)
291 # get the callers hrn
292 valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
293 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
295 # attempt to use delegated credential first
296 credential = api.getDelegatedCredential(creds)
298 credential = api.getCredential()
299 threads = ThreadManager()
300 for aggregate in api.aggregates:
301 # prevent infinite loop. Dont send request back to caller
302 # unless the caller is the aggregate's SM
303 if caller_hrn == aggregate and aggregate != api.hrn:
305 server = api.aggregates[aggregate]
306 threads.run(_DeleteSliver, server, xrn, credential, call_id)
307 threads.get_results()
311 # first draft at a merging SliverStatus
312 def SliverStatus(api, slice_xrn, creds, call_id):
313 def _SliverStatus(server, xrn, creds, call_id):
314 server_version = api.get_cached_server_version(server)
316 if _call_id_supported(api, server):
318 return server.SliverStatus(*args)
320 if Callids().already_handled(call_id): return {}
321 # attempt to use delegated credential first
322 credential = api.getDelegatedCredential(creds)
324 credential = api.getCredential()
325 threads = ThreadManager()
326 for aggregate in api.aggregates:
327 server = api.aggregates[aggregate]
328 threads.run (_SliverStatus, server, slice_xrn, credential, call_id)
329 results = threads.get_results()
331 # get rid of any void result - e.g. when call_id was hit where by convention we return {}
332 results = [ result for result in results if result and result['geni_resources']]
334 # do not try to combine if there's no result
335 if not results : return {}
337 # otherwise let's merge stuff
340 # mmh, it is expected that all results carry the same urn
341 overall['geni_urn'] = results[0]['geni_urn']
342 overall['pl_login'] = results[0]['pl_login']
343 # append all geni_resources
344 overall['geni_resources'] = \
345 reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , [])
346 overall['status'] = 'unknown'
347 if overall['geni_resources']:
348 overall['status'] = 'ready'
354 def ListSlices(api, creds, call_id):
355 def _ListSlices(server, creds, call_id):
356 server_version = api.get_cached_server_version(server)
358 if _call_id_supported(api, server):
360 return server.ListSlices(*args)
362 if Callids().already_handled(call_id): return []
364 # look in cache first
365 if caching and api.cache:
366 slices = api.cache.get('slices')
370 # get the callers hrn
371 valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
372 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
374 # attempt to use delegated credential first
375 credential = api.getDelegatedCredential(creds)
377 credential = api.getCredential()
378 threads = ThreadManager()
379 # fetch from aggregates
380 for aggregate in api.aggregates:
381 # prevent infinite loop. Dont send request back to caller
382 # unless the caller is the aggregate's SM
383 if caller_hrn == aggregate and aggregate != api.hrn:
385 server = api.aggregates[aggregate]
386 threads.run(_ListSlices, server, credential, call_id)
389 results = threads.get_results()
391 for result in results:
392 slices.extend(result)
395 if caching and api.cache:
396 api.cache.add('slices', slices)
401 def get_ticket(api, xrn, creds, rspec, users):
402 slice_hrn, type = urn_to_hrn(xrn)
403 # get the netspecs contained within the clients rspec
404 aggregate_rspecs = {}
405 tree= etree.parse(StringIO(rspec))
406 elements = tree.findall('./network')
407 for element in elements:
408 aggregate_hrn = element.values()[0]
409 aggregate_rspecs[aggregate_hrn] = rspec
411 # get the callers hrn
412 valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
413 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
415 # attempt to use delegated credential first
416 credential = api.getDelegatedCredential(creds)
418 credential = api.getCredential()
419 threads = ThreadManager()
420 for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
421 # prevent infinite loop. Dont send request back to caller
422 # unless the caller is the aggregate's SM
423 if caller_hrn == aggregate and aggregate != api.hrn:
426 if aggregate in api.aggregates:
427 server = api.aggregates[aggregate]
429 net_urn = hrn_to_urn(aggregate, 'authority')
430 # we may have a peer that knows about this aggregate
431 for agg in api.aggregates:
432 target_aggs = api.aggregates[agg].get_aggregates(credential, net_urn)
433 if not target_aggs or not 'hrn' in target_aggs[0]:
435 # send the request to this address
436 url = target_aggs[0]['url']
437 server = xmlrpcprotocol.get_server(url, api.key_file, api.cert_file, timeout=30)
438 # aggregate found, no need to keep looping
442 threads.run(server.GetTicket, xrn, credential, aggregate_rspec, users)
444 results = threads.get_results()
446 # gather information from each ticket
451 for result in results:
452 agg_ticket = SfaTicket(string=result)
453 attrs = agg_ticket.get_attributes()
455 object_gid = agg_ticket.get_gid_object()
456 rspecs.append(agg_ticket.get_rspec())
457 initscripts.extend(attrs.get('initscripts', []))
458 slivers.extend(attrs.get('slivers', []))
461 attributes = {'initscripts': initscripts,
463 merged_rspec = merge_rspecs(rspecs)
465 # create a new ticket
466 ticket = SfaTicket(subject = slice_hrn)
467 ticket.set_gid_caller(api.auth.client_gid)
468 ticket.set_issuer(key=api.key, subject=api.hrn)
469 ticket.set_gid_object(object_gid)
470 ticket.set_pubkey(object_gid.get_pubkey())
471 #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
472 ticket.set_attributes(attributes)
473 ticket.set_rspec(merged_rspec)
476 return ticket.save_to_string(save_parents=True)
478 def start_slice(api, xrn, creds):
479 hrn, type = urn_to_hrn(xrn)
481 # get the callers hrn
482 valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
483 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
485 # attempt to use delegated credential first
486 credential = api.getDelegatedCredential(creds)
488 credential = api.getCredential()
489 threads = ThreadManager()
490 for aggregate in api.aggregates:
491 # prevent infinite loop. Dont send request back to caller
492 # unless the caller is the aggregate's SM
493 if caller_hrn == aggregate and aggregate != api.hrn:
495 server = api.aggregates[aggregate]
496 threads.run(server.Start, xrn, credential)
497 threads.get_results()
500 def stop_slice(api, xrn, creds):
501 hrn, type = urn_to_hrn(xrn)
503 # get the callers hrn
504 valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
505 caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
507 # attempt to use delegated credential first
508 credential = api.getDelegatedCredential(creds)
510 credential = api.getCredential()
511 threads = ThreadManager()
512 for aggregate in api.aggregates:
513 # prevent infinite loop. Dont send request back to caller
514 # unless the caller is the aggregate's SM
515 if caller_hrn == aggregate and aggregate != api.hrn:
517 server = api.aggregates[aggregate]
518 threads.run(server.Stop, xrn, credential)
519 threads.get_results()
522 def reset_slice(api, xrn):
528 def shutdown(api, xrn, creds):
534 def status(api, xrn, creds):
542 r.parseFile(sys.argv[1])
544 CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
546 if __name__ == "__main__":