-### $Id: slices.py 15842 2009-11-22 09:56:13Z anil $
-### $URL: https://svn.planet-lab.org/svn/sfa/trunk/sfa/plc/slices.py $
-
-import datetime
-import time
-import traceback
+#
import sys
-from copy import deepcopy
-from lxml import etree
+import time,datetime
from StringIO import StringIO
from types import StringTypes
+from copy import deepcopy
+from copy import copy
+from lxml import etree
+
+from sfa.util.sfalogging import sfa_logger
from sfa.util.rspecHelper import merge_rspecs
-from sfa.util.namespace import *
+from sfa.util.xrn import Xrn, urn_to_hrn, hrn_to_urn
+from sfa.util.plxrn import hrn_to_pl_slicename
from sfa.util.rspec import *
from sfa.util.specdict import *
from sfa.util.faults import *
from sfa.trust.credential import Credential
from sfa.util.threadmanager import ThreadManager
import sfa.util.xmlrpcprotocol as xmlrpcprotocol
-from sfa.util.debug import log
import sfa.plc.peers as peers
+from sfa.util.version import version_core
+from sfa.util.callids import Callids
+
+# XX FIX ME: should merge result from multiple aggregates instead of
+# calling aggregate implementation
+from sfa.managers.aggregate_manager_pl import slice_status
-def get_version():
- version = {}
- version['geni_api'] = 1
- return version
+# we have specialized xmlrpclib.ServerProxy to remember the input url
+# OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances
+def get_serverproxy_url (server):
+ try:
+ return server.url
+ except:
+ sfa_logger().warning("GetVersion, falling back to xmlrpclib.ServerProxy internals")
+ return server._ServerProxy__host + server._ServerProxy__handler
-def slice_status(api, slice_xrn, creds ):
- result = {}
- result['geni_urn'] = slice_xrn
- result['geni_status'] = 'unknown'
- result['geni_resources'] = {}
- return result
+def GetVersion(api):
+ # peers explicitly in aggregates.xml
+ peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems()
+ if peername != api.hrn])
+ xrn=Xrn (api.hrn)
+ sm_version=version_core({'interface':'slicemgr',
+ 'hrn' : xrn.get_hrn(),
+ 'urn' : xrn.get_urn(),
+ 'peers': peers,
+ })
+ # local aggregate if present needs to have localhost resolved
+ if api.hrn in api.aggregates:
+ local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
+ sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
+ return sm_version
+
+def CreateSliver(api, xrn, creds, rspec, users, call_id):
+
+ if Callids().already_handled(call_id): return ""
-def create_slice(api, xrn, creds, rspec, users):
hrn, type = urn_to_hrn(xrn)
# Validate the RSpec against PlanetLab's schema --disabled for now
message = "%s (line %s)" % (error.message, error.line)
raise InvalidRSpec(message)
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- cred = api.getCredential()
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
for aggregate in api.aggregates:
- if aggregate not in [api.auth.client_cred.get_gid_caller().get_hrn()]:
- server = api.aggregates[aggregate]
- # Just send entire RSpec to each aggregate
- threads.run(server.CreateSliver, xrn, cred, rspec, users)
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
+
+ # Just send entire RSpec to each aggregate
+ server = api.aggregates[aggregate]
+ threads.run(server.CreateSliver, xrn, credential, rspec, users, call_id)
results = threads.get_results()
merged_rspec = merge_rspecs(results)
return merged_rspec
def renew_slice(api, xrn, creds, expiration_time):
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- credential = api.getCredential()
+ hrn, type = urn_to_hrn(xrn)
+
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
for aggregate in api.aggregates:
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
+
server = api.aggregates[aggregate]
- threads.run(server.RenewSliver, xrn, credential, expiration_time)
+ threads.run(server.RenewSliver, xrn, [credential], expiration_time)
threads.get_results()
return 1
-def get_ticket(api, xrn, rspec, origin_hrn=None):
+def get_ticket(api, xrn, creds, rspec, users):
slice_hrn, type = urn_to_hrn(xrn)
# get the netspecs contained within the clients rspec
aggregate_rspecs = {}
aggregate_hrn = element.values()[0]
aggregate_rspecs[aggregate_hrn] = rspec
- # get a ticket from each aggregate
- credential = api.getCredential()
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
- for aggregate, aggregate_rspec in aggregate_rspecs.items():
+ for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
server = None
if aggregate in api.aggregates:
server = api.aggregates[aggregate]
net_urn = hrn_to_urn(aggregate, 'authority')
# we may have a peer that knows about this aggregate
for agg in api.aggregates:
- agg_info = api.aggregates[agg].get_aggregates(credential, net_urn)
- if agg_info:
- # send the request to this address
- url = 'http://%s:%s' % (agg_info['addr'], agg_info['port'])
- server = xmlrpcprotocol.get_server(url, api.key_file, api.cert_file)
- break
+ target_aggs = api.aggregates[agg].get_aggregates(credential, net_urn)
+ if not target_aggs or not 'hrn' in target_aggs[0]:
+ continue
+ # send the request to this address
+ url = target_aggs[0]['url']
+ server = xmlrpcprotocol.get_server(url, api.key_file, api.cert_file)
+ # aggregate found, no need to keep looping
+ break
if server is None:
continue
- threads.run(server.get_ticket, credential, xrn, aggregate_rspec, origin_hrn)
+ threads.run(server.GetTicket, xrn, credential, aggregate_rspec, users)
+
results = threads.get_results()
# gather information from each ticket
return ticket.save_to_string(save_parents=True)
-def delete_slice(api, xrn, origin_hrn=None):
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- credential = api.getCredential()
+def delete_slice(api, xrn, creds):
+ hrn, type = urn_to_hrn(xrn)
+
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
for aggregate in api.aggregates:
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
server = api.aggregates[aggregate]
threads.run(server.DeleteSliver, xrn, credential)
threads.get_results()
return 1
def start_slice(api, xrn, creds):
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- credential = api.getCredential()
+ hrn, type = urn_to_hrn(xrn)
+
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
for aggregate in api.aggregates:
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
server = api.aggregates[aggregate]
threads.run(server.Start, xrn, credential)
threads.get_results()
return 1
def stop_slice(api, xrn, creds):
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- credential = api.getCredential()
+ hrn, type = urn_to_hrn(xrn)
+
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
for aggregate in api.aggregates:
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
server = api.aggregates[aggregate]
threads.run(server.Stop, xrn, credential)
threads.get_results()
return 1
def get_slices(api, creds):
+
# look in cache first
if api.cache:
slices = api.cache.get('slices')
if slices:
return slices
- # fetch from aggregates
- slices = []
- credential = api.getCredential()
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
+ # fetch from aggregates
for aggregate in api.aggregates:
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
server = api.aggregates[aggregate]
threads.run(server.ListSlices, credential)
api.cache.add('slices', slices)
return slices
-
-def get_rspec(api, creds, options):
+
+
+# Thierry : caching at the slicemgr level makes sense to some extent
+caching=True
+#caching=False
+def ListResources(api, creds, options, call_id):
+
+ if Callids().already_handled(call_id):
+ api.logger.info("%d received ListResources with known call_id %s"%(api.interface,call_id))
+ return ""
+
# get slice's hrn from options
- xrn = options.get('geni_slice_urn', None)
- hrn, type = urn_to_hrn(xrn)
+ xrn = options.get('geni_slice_urn', '')
+ (hrn, type) = urn_to_hrn(xrn)
# get hrn of the original caller
origin_hrn = options.get('origin_hrn', None)
if not origin_hrn:
- origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn()
+ if isinstance(creds, list):
+ origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn()
+ else:
+ origin_hrn = Credential(string=creds).get_gid_caller().get_hrn()
# look in cache first
- if api.cache and not xrn:
+ if caching and api.cache and not xrn:
rspec = api.cache.get('nodes')
if rspec:
return rspec
- hrn, type = urn_to_hrn(xrn)
- rspec = None
- # XX
- # XX TODO: Should try to use delegated credential first
- # XX
- cred = api.getCredential()
+ # get the callers hrn
+ valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0]
+ caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+
+ # attempt to use delegated credential first
+ credential = api.getDelegatedCredential(creds)
+ if not credential:
+ credential = api.getCredential()
threads = ThreadManager()
-
for aggregate in api.aggregates:
- if aggregate not in [api.auth.client_cred.get_gid_caller().get_hrn()]:
- # get the rspec from the aggregate
- server = api.aggregates[aggregate]
- threads.run(server.ListResources, cred, options)
- #threads.run(server.get_resources, cred, xrn, origin_hrn)
+ # prevent infinite loop. Dont send request back to caller
+ # unless the caller is the aggregate's SM
+ if caller_hrn == aggregate and aggregate != api.hrn:
+ continue
+ # get the rspec from the aggregate
+ server = api.aggregates[aggregate]
+ my_opts = copy(options)
+ my_opts['geni_compressed'] = False
+ threads.run(server.ListResources, credential, my_opts, call_id)
+ #threads.run(server.get_resources, cred, xrn, origin_hrn)
-
results = threads.get_results()
- # combine the rspecs into a single rspec
- for agg_rspec in results:
- try:
- tree = etree.parse(StringIO(agg_rspec))
- except etree.XMLSyntaxError:
- message = str(agg_rspec) + ": " + str(sys.exc_info()[1])
- raise InvalidRSpec(message)
+ merged_rspec = merge_rspecs(results)
- root = tree.getroot()
- if root.get("type") in ["SFA"]:
- if rspec == None:
- rspec = root
- else:
- for network in root.iterfind("./network"):
- rspec.append(deepcopy(network))
- for request in root.iterfind("./request"):
- rspec.append(deepcopy(request))
-
- rspec = etree.tostring(rspec, xml_declaration=True, pretty_print=True)
# cache the result
- if api.cache and not xrn:
- api.cache.add('nodes', rspec)
+ if caching and api.cache and not xrn:
+ api.cache.add('nodes', merged_rspec)
- return rspec
+ return merged_rspec
def main():
r = RSpec()
r.parseFile(sys.argv[1])
rspec = r.toDict()
- create_slice(None,'plc.princeton.tmacktestslice',rspec)
+ CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice')
if __name__ == "__main__":
main()
git://git.onelab.eu / sfa.git / blobdiff