X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fmanagers%2Fslice_manager.py;h=be6cc7e291aee4559e7eb0d7a7f15b59a598913d;hb=b6de9285a970eccb9658a0078c49f76fb11af7cd;hp=d3ce06bd81261e97291de6ce2433229396ff12a0;hpb=8e13e7b178d5ffec16cdfa0e3b81f883fca5ec68;p=sfa.git diff --git a/sfa/managers/slice_manager.py b/sfa/managers/slice_manager.py index d3ce06bd..be6cc7e2 100644 --- a/sfa/managers/slice_manager.py +++ b/sfa/managers/slice_manager.py @@ -1,549 +1,530 @@ -/ import sys -import time,datetime +import time +import traceback 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 logger -from sfa.util.rspecHelper import merge_rspecs -from sfa.util.xrn import Xrn, urn_to_hrn, hrn_to_urn -from sfa.util.plxrn import hrn_to_pl_slicename -from sfa.util.faults import * -from sfa.util.record import SfaRecord -from sfa.rspecs.rspec_converter import RSpecConverter -from sfa.client.client_helper import sfa_to_pg_users_arg -from sfa.rspecs.version_manager import VersionManager -from sfa.rspecs.rspec import RSpec -from sfa.util.policy import Policy -from sfa.util.prefixTree import prefixTree from sfa.trust.sfaticket import SfaTicket from sfa.trust.credential import Credential -from sfa.util.threadmanager import ThreadManager -import sfa.util.xmlrpcprotocol as xmlrpcprotocol -import sfa.plc.peers as peers + +from sfa.util.sfalogging import logger +from sfa.util.xrn import Xrn, urn_to_hrn from sfa.util.version import version_core from sfa.util.callids import Callids +from sfa.util.cache import Cache +from sfa.server.threadmanager import ThreadManager -def _call_id_supported(api, server): - """ - Returns true if server support the optional call_id arg, false otherwise. - """ - server_version = api.get_cached_server_version(server) +from sfa.rspecs.rspec_converter import RSpecConverter +from sfa.rspecs.version_manager import VersionManager +from sfa.rspecs.rspec import RSpec - if 'sfa' in server_version: - code_tag = server_version['code_tag'] - code_tag_parts = code_tag.split("-") +from sfa.client.client_helper import sfa_to_pg_users_arg +from sfa.client.return_value import ReturnValue - version_parts = code_tag_parts[0].split(".") - major, minor = version_parts[0:2] - rev = code_tag_parts[1] - if int(major) > 1: - if int(minor) > 0 or int(rev) > 20: - return True - return False +class SliceManager: -# 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.get_url() - except: - logger.warning("GetVersion, falling back to xmlrpclib.ServerProxy internals") - return server._ServerProxy__host + server._ServerProxy__handler + # the cache instance is a class member so it survives across incoming requests + cache = None -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]) - version_manager = VersionManager() - ad_rspec_versions = [] - request_rspec_versions = [] - for rspec_version in version_manager.versions: - if rspec_version.content_type in ['*', 'ad']: - ad_rspec_versions.append(rspec_version.to_dict()) - if rspec_version.content_type in ['*', 'request']: - request_rspec_versions.append(rspec_version.to_dict()) - default_rspec_version = version_manager.get_version("sfa 1").to_dict() - xrn=Xrn(api.hrn, 'authority+sa') - version_more = {'interface':'slicemgr', - 'hrn' : xrn.get_hrn(), - 'urn' : xrn.get_urn(), - 'peers': peers, - 'request_rspec_versions': request_rspec_versions, - 'ad_rspec_versions': ad_rspec_versions, - 'default_ad_rspec': default_rspec_version + def __init__ (self, config): + self.cache=None + if config.SFA_SM_CACHING: + if SliceManager.cache is None: + SliceManager.cache = Cache() + self.cache = SliceManager.cache + + def GetVersion(self, api, options): + # peers explicitly in aggregates.xml + peers =dict ([ (peername,interface.get_url()) for (peername,interface) in api.aggregates.iteritems() + if peername != api.hrn]) + version_manager = VersionManager() + ad_rspec_versions = [] + request_rspec_versions = [] + for rspec_version in version_manager.versions: + if rspec_version.content_type in ['*', 'ad']: + ad_rspec_versions.append(rspec_version.to_dict()) + if rspec_version.content_type in ['*', 'request']: + request_rspec_versions.append(rspec_version.to_dict()) + xrn=Xrn(api.hrn, 'authority+sa') + version_more = {'interface':'slicemgr', + 'sfa': 2, + 'geni_api': 2, + 'hrn' : xrn.get_hrn(), + 'urn' : xrn.get_urn(), + 'peers': peers, + 'geni_request_rspec_versions': request_rspec_versions, + 'geni_ad_rspec_versions': ad_rspec_versions, } - sm_version=version_core(version_more) - # 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 drop_slicemgr_stats(rspec): - try: - stats_elements = rspec.xml.xpath('//statistics') - for node in stats_elements: - node.getparent().remove(node) - except Exception, e: - api.logger.warn("drop_slicemgr_stats failed: %s " % (str(e))) - -def add_slicemgr_stat(rspec, callname, aggname, elapsed, status): - try: - stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname) - if stats_tags: - stats_tag = stats_tags[0] - else: - stats_tag = etree.SubElement(rspec.xml.root, "statistics", call=callname) - - etree.SubElement(stats_tag, "aggregate", name=str(aggname), elapsed=str(elapsed), status=str(status)) - except Exception, e: - api.logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e))) - -def ListResources(api, creds, options, call_id): - version_manager = VersionManager() - def _ListResources(aggregate, server, credential, opts, call_id): - - my_opts = copy(opts) - args = [credential, my_opts] - tStart = time.time() + sm_version=version_core(version_more) + # local aggregate if present needs to have localhost resolved + if api.hrn in api.aggregates: + local_am_url=api.aggregates[api.hrn].get_url() + sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname']) + return sm_version + + def drop_slicemgr_stats(self, rspec): try: - if _call_id_supported(api, server): - args.append(call_id) - version = api.get_cached_server_version(server) - # force ProtoGENI aggregates to give us a v2 RSpec - if 'sfa' not in version.keys(): - my_opts['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict() - rspec = server.ListResources(*args) - return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"} + stats_elements = rspec.xml.xpath('//statistics') + for node in stats_elements: + node.getparent().remove(node) except Exception, e: - api.logger.log_exc("ListResources failed at %s" %(server.url)) - return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"} - - if Callids().already_handled(call_id): return "" - - # get slice's hrn from options - xrn = options.get('geni_slice_urn', '') - (hrn, type) = urn_to_hrn(xrn) - if 'geni_compressed' in options: - del(options['geni_compressed']) + logger.warn("drop_slicemgr_stats failed: %s " % (str(e))) + + def add_slicemgr_stat(self, rspec, callname, aggname, elapsed, status, exc_info=None): + try: + stats_tags = rspec.xml.xpath('//statistics[@call="%s"]' % callname) + if stats_tags: + stats_tag = stats_tags[0] + else: + stats_tag = rspec.xml.root.add_element("statistics", call=callname) - # get the rspec's return format from options - rspec_version = version_manager.get_version(options.get('rspec_version')) - version_string = "rspec_%s" % (rspec_version.to_string()) + stat_tag = stats_tag.add_element("aggregate", name=str(aggname), + elapsed=str(elapsed), status=str(status)) - # look in cache first - if caching and api.cache and not xrn: - rspec = api.cache.get(version_string) - if rspec: - return rspec + if exc_info: + exc_tag = stat_tag.add_element("exc_info", name=str(exc_info[1])) - # get the callers hrn - valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0] - caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() + # formats the traceback as one big text blob + #exc_tag.text = "\n".join(traceback.format_exception(exc_info[0], exc_info[1], exc_info[2])) - # attempt to use delegated credential first - cred = api.getDelegatedCredential(creds) - if not cred: - cred = 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 + # formats the traceback as a set of xml elements + tb = traceback.extract_tb(exc_info[2]) + for item in tb: + exc_frame = exc_tag.add_element("tb_frame", filename=str(item[0]), + line=str(item[1]), func=str(item[2]), code=str(item[3])) - # get the rspec from the aggregate - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(_ListResources, aggregate, server, [cred], options, call_id) + except Exception, e: + logger.warn("add_slicemgr_stat failed on %s: %s" %(aggname, str(e))) + + def ListResources(self, api, creds, options): + call_id = options.get('call_id') + if Callids().already_handled(call_id): return "" + version_manager = VersionManager() - results = threads.get_results() - rspec_version = version_manager.get_version(options.get('rspec_version')) - if xrn: - result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest') - else: - result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad') - rspec = RSpec(version=result_version) - for result in results: - add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], result["status"]) - if result["status"]=="success": + def _ListResources(aggregate, server, credential, options): + forward_options = copy(options) + tStart = time.time() try: - rspec.version.merge(result["rspec"]) - except: - api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec") - - # cache the result - if caching and api.cache and not xrn: - api.cache.add(version_string, rspec.toxml()) - - return rspec.toxml() - - -def CreateSliver(api, xrn, creds, rspec_str, users, call_id): - - version_manager = VersionManager() - def _CreateSliver(aggregate, server, xrn, credential, rspec, users, call_id): - tStart = time.time() - try: - # Need to call GetVersion at an aggregate to determine the supported - # rspec type/format beofre calling CreateSliver at an Aggregate. - server_version = api.get_cached_server_version(server) - requested_users = users - if 'sfa' not in server_version and 'geni_api' in server_version: - # sfa aggregtes support both sfa and pg rspecs, no need to convert - # if aggregate supports sfa rspecs. otherwise convert to pg rspec - rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request')) - filter = {'component_manager_id': server_version['urn']} - rspec.filter(filter) - rspec = rspec.toxml() - requested_users = sfa_to_pg_users_arg(users) - args = [xrn, credential, rspec, requested_users] - if _call_id_supported(api, server): - args.append(call_id) - rspec = server.CreateSliver(*args) - return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"} - except: - logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url) - return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception"} - - if Callids().already_handled(call_id): return "" - # Validate the RSpec against PlanetLab's schema --disabled for now - # The schema used here needs to aggregate the PL and VINI schemas - # schema = "/var/www/html/schemas/pl.rng" - rspec = RSpec(rspec_str) - schema = None - if schema: - rspec.validate(schema) - - # if there is a section, the aggregates don't care about it, - # so delete it. - drop_slicemgr_stats(rspec) + version = api.get_cached_server_version(server) + # force ProtoGENI aggregates to give us a v2 RSpec + if 'sfa' in version.keys(): + forward_options['rspec_version'] = version_manager.get_version('SFA 1').to_dict() + else: + forward_options['rspec_version'] = version_manager.get_version('ProtoGENI 2').to_dict() + rspec = server.ListResources(credential, forward_options) + return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"} + except Exception, e: + api.logger.log_exc("ListResources failed at %s" %(server.url)) + return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()} + + # get slice's hrn from options + xrn = options.get('geni_slice_urn', '') + (hrn, type) = urn_to_hrn(xrn) + if 'geni_compressed' in options: + del(options['geni_compressed']) + + # get the rspec's return format from options + rspec_version = version_manager.get_version(options.get('geni_rspec_version')) + version_string = "rspec_%s" % (rspec_version) + + # look in cache first + if self.cache and not xrn: + rspec = self.cache.get(version_string) + if rspec: + api.logger.debug("SliceManager.ListResources returns cached advertisement") + return rspec + + # 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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = 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 + + # get the rspec from the aggregate + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(_ListResources, aggregate, server, [cred], options) + + + results = threads.get_results() + rspec_version = version_manager.get_version(options.get('geni_rspec_version')) + if xrn: + result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'manifest') + else: + result_version = version_manager._get_version(rspec_version.type, rspec_version.version, 'ad') + rspec = RSpec(version=result_version) + for result in results: + self.add_slicemgr_stat(rspec, "ListResources", result["aggregate"], result["elapsed"], + result["status"], result.get("exc_info",None)) + if result["status"]=="success": + try: + rspec.version.merge(ReturnValue.get_value(result["rspec"])) + except: + api.logger.log_exc("SM.ListResources: Failed to merge aggregate rspec") + + # cache the result + if self.cache and not xrn: + api.logger.debug("SliceManager.ListResources caches advertisement") + self.cache.add(version_string, rspec.toxml()) + + return rspec.toxml() - # attempt to use delegated credential first - cred = api.getDelegatedCredential(creds) - if not cred: - cred = api.getCredential() - # get the callers hrn - hrn, type = urn_to_hrn(xrn) - valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0] - caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() - 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - # Just send entire RSpec to each aggregate - threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, call_id) - - results = threads.get_results() - manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest') - result_rspec = RSpec(version=manifest_version) - for result in results: - add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], result["status"]) - if result["status"]=="success": + def CreateSliver(self, api, xrn, creds, rspec_str, users, options): + call_id = options.get('call_id') + if Callids().already_handled(call_id): return "" + + version_manager = VersionManager() + def _CreateSliver(aggregate, server, xrn, credential, rspec, users, options): + tStart = time.time() try: - result_rspec.version.merge(result["rspec"]) + # Need to call GetVersion at an aggregate to determine the supported + # rspec type/format beofre calling CreateSliver at an Aggregate. + server_version = api.get_cached_server_version(server) + requested_users = users + if 'sfa' not in server_version and 'geni_api' in server_version: + # sfa aggregtes support both sfa and pg rspecs, no need to convert + # if aggregate supports sfa rspecs. otherwise convert to pg rspec + rspec = RSpec(RSpecConverter.to_pg_rspec(rspec, 'request')) + filter = {'component_manager_id': server_version['urn']} + rspec.filter(filter) + rspec = rspec.toxml() + requested_users = sfa_to_pg_users_arg(users) + rspec = server.CreateSliver(xrn, credential, rspec, requested_users, options) + return {"aggregate": aggregate, "rspec": rspec, "elapsed": time.time()-tStart, "status": "success"} except: - api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec") - return result_rspec.toxml() - -def RenewSliver(api, xrn, creds, expiration_time, call_id): - def _RenewSliver(server, xrn, creds, expiration_time, call_id): - server_version = api.get_cached_server_version(server) - args = [xrn, creds, expiration_time, call_id] - if _call_id_supported(api, server): - args.append(call_id) - return server.RenewSliver(*args) - - if Callids().already_handled(call_id): return True - - (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 - cred = api.getDelegatedCredential(creds) - if not cred: - cred = 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(_RenewSliver, server, xrn, [cred], expiration_time, call_id) - # 'and' the results - return reduce (lambda x,y: x and y, threads.get_results() , True) - -def DeleteSliver(api, xrn, creds, call_id): - def _DeleteSliver(server, xrn, creds, call_id): - server_version = api.get_cached_server_version(server) - args = [xrn, creds] - if _call_id_supported(api, server): - args.append(call_id) - return server.DeleteSliver(*args) - - if Callids().already_handled(call_id): return "" - (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 - cred = api.getDelegatedCredential(creds) - if not cred: - cred = 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(_DeleteSliver, server, xrn, [cred], call_id) - threads.get_results() - return 1 - - -# first draft at a merging SliverStatus -def SliverStatus(api, slice_xrn, creds, call_id): - def _SliverStatus(server, xrn, creds, call_id): - server_version = api.get_cached_server_version(server) - args = [xrn, creds] - if _call_id_supported(api, server): - args.append(call_id) - return server.SliverStatus(*args) - - if Callids().already_handled(call_id): return {} - # attempt to use delegated credential first - cred = api.getDelegatedCredential(creds) - if not cred: - cred = api.getCredential() - threads = ThreadManager() - for aggregate in api.aggregates: - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run (_SliverStatus, server, slice_xrn, [cred], call_id) - results = threads.get_results() - - # get rid of any void result - e.g. when call_id was hit where by convention we return {} - results = [ result for result in results if result and result['geni_resources']] - - # do not try to combine if there's no result - if not results : return {} - - # otherwise let's merge stuff - overall = {} - - # mmh, it is expected that all results carry the same urn - overall['geni_urn'] = results[0]['geni_urn'] - overall['pl_login'] = results[0]['pl_login'] - # append all geni_resources - overall['geni_resources'] = \ - reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , []) - overall['status'] = 'unknown' - if overall['geni_resources']: - overall['status'] = 'ready' - - return overall - -caching=True -#caching=False -def ListSlices(api, creds, call_id): - def _ListSlices(server, creds, call_id): - server_version = api.get_cached_server_version(server) - args = [creds] - if _call_id_supported(api, server): - args.append(call_id) - return server.ListSlices(*args) - - if Callids().already_handled(call_id): return [] - - # look in cache first - if caching and api.cache: - slices = api.cache.get('slices') - if slices: - return slices - - # 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 - cred= api.getDelegatedCredential(creds) - if not cred: - cred = 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(_ListSlices, server, [cred], call_id) - - # combime results - results = threads.get_results() - slices = [] - for result in results: - slices.extend(result) - - # cache the result - if caching and api.cache: - api.cache.add('slices', slices) - - return slices - + logger.log_exc('Something wrong in _CreateSliver with URL %s'%server.url) + return {"aggregate": aggregate, "elapsed": time.time()-tStart, "status": "exception", "exc_info": sys.exc_info()} + + # Validate the RSpec against PlanetLab's schema --disabled for now + # The schema used here needs to aggregate the PL and VINI schemas + # schema = "/var/www/html/schemas/pl.rng" + rspec = RSpec(rspec_str) + # schema = None + # if schema: + # rspec.validate(schema) + + # if there is a section, the aggregates don't care about it, + # so delete it. + self.drop_slicemgr_stats(rspec) + + # attempt to use delegated credential first + cred = api.getDelegatedCredential(creds) + if not cred: + cred = api.getCredential() + + # get the callers hrn + hrn, type = urn_to_hrn(xrn) + valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0] + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() + 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + # Just send entire RSpec to each aggregate + threads.run(_CreateSliver, aggregate, server, xrn, [cred], rspec.toxml(), users, options) + + results = threads.get_results() + manifest_version = version_manager._get_version(rspec.version.type, rspec.version.version, 'manifest') + result_rspec = RSpec(version=manifest_version) + for result in results: + self.add_slicemgr_stat(result_rspec, "CreateSliver", result["aggregate"], result["elapsed"], + result["status"], result.get("exc_info",None)) + if result["status"]=="success": + try: + result_rspec.version.merge(ReturnValue.get_value(result["rspec"])) + except: + api.logger.log_exc("SM.CreateSliver: Failed to merge aggregate rspec") + return result_rspec.toxml() + + def RenewSliver(self, api, xrn, creds, expiration_time, options): + call_id = options.get('call_id') + if Callids().already_handled(call_id): return True -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 = {} - tree= etree.parse(StringIO(rspec)) - elements = tree.findall('./network') - for element in elements: - aggregate_hrn = element.values()[0] - aggregate_rspecs[aggregate_hrn] = rspec + def _RenewSliver(server, xrn, creds, expiration_time, options): + return server.RenewSliver(xrn, creds, expiration_time, options) + + (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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(_RenewSliver, server, xrn, [cred], expiration_time, options) + # 'and' the results + results = [ReturnValue.get_value(result) for result in threads.get_results()] + return reduce (lambda x,y: x and y, results , True) + + def DeleteSliver(self, api, xrn, creds, options): + call_id = options.get('call_id') + if Callids().already_handled(call_id): return "" - # 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() + def _DeleteSliver(server, xrn, creds, options): + return server.DeleteSliver(xrn, creds, options) - # attempt to use delegated credential first - cred = api.getDelegatedCredential(creds) - if not cred: - cred = api.getCredential() - threads = ThreadManager() - 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 + (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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(_DeleteSliver, server, xrn, [cred], options) + threads.get_results() + return 1 + + + # first draft at a merging SliverStatus + def SliverStatus(self, api, slice_xrn, creds, options): + def _SliverStatus(server, xrn, creds, options): + return server.SliverStatus(xrn, creds, options) + + call_id = options.get('call_id') + if Callids().already_handled(call_id): return {} + # attempt to use delegated credential first + cred = api.getDelegatedCredential(creds) + if not cred: + cred = api.getCredential() + threads = ThreadManager() + for aggregate in api.aggregates: + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run (_SliverStatus, server, slice_xrn, [cred], options) + results = [ReturnValue.get_value(result) for result in threads.get_results()] + + # get rid of any void result - e.g. when call_id was hit, where by convention we return {} + results = [ result for result in results if result and result['geni_resources']] + + # do not try to combine if there's no result + if not results : return {} + + # otherwise let's merge stuff + overall = {} + + # mmh, it is expected that all results carry the same urn + overall['geni_urn'] = results[0]['geni_urn'] + overall['pl_login'] = results[0]['pl_login'] + # append all geni_resources + overall['geni_resources'] = \ + reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , []) + overall['status'] = 'unknown' + if overall['geni_resources']: + overall['status'] = 'ready' + + return overall + + def ListSlices(self, api, creds, options): + call_id = options.get('call_id') + if Callids().already_handled(call_id): return [] + + def _ListSlices(server, creds, options): + return server.ListSlices(creds, options) + + # look in cache first + # xxx is this really frequent enough that it is worth being cached ? + if self.cache: + slices = self.cache.get('slices') + if slices: + api.logger.debug("SliceManager.ListSlices returns from cache") + return slices + + # 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 + cred= api.getDelegatedCredential(creds) + if not cred: + cred = 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(_ListSlices, server, [cred], options) + + # combime results + results = [ReturnValue.get_value(result) for result in threads.get_results()] + slices = [] + for result in results: + slices.extend(result) + + # cache the result + if self.cache: + api.logger.debug("SliceManager.ListSlices caches value") + self.cache.add('slices', slices) + + return slices + + + def GetTicket(self, api, xrn, creds, rspec, users, options): + slice_hrn, type = urn_to_hrn(xrn) + # get the netspecs contained within the clients rspec + aggregate_rspecs = {} + tree= etree.parse(StringIO(rspec)) + elements = tree.findall('./network') + for element in elements: + aggregate_hrn = element.values()[0] + aggregate_rspecs[aggregate_hrn] = rspec + + # 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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = api.getCredential() + threads = ThreadManager() + for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems(): + # xxx sounds like using call_id here would be safer + # 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 + + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options) + + results = threads.get_results() - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users) - - results = threads.get_results() - - # gather information from each ticket - rspecs = [] - initscripts = [] - slivers = [] - object_gid = None - for result in results: - agg_ticket = SfaTicket(string=result) - attrs = agg_ticket.get_attributes() - if not object_gid: - object_gid = agg_ticket.get_gid_object() - rspecs.append(agg_ticket.get_rspec()) - initscripts.extend(attrs.get('initscripts', [])) - slivers.extend(attrs.get('slivers', [])) - - # merge info - attributes = {'initscripts': initscripts, - 'slivers': slivers} - merged_rspec = merge_rspecs(rspecs) - - # create a new ticket - ticket = SfaTicket(subject = slice_hrn) - ticket.set_gid_caller(api.auth.client_gid) - ticket.set_issuer(key=api.key, subject=api.hrn) - ticket.set_gid_object(object_gid) - ticket.set_pubkey(object_gid.get_pubkey()) - #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn)) - ticket.set_attributes(attributes) - ticket.set_rspec(merged_rspec) - ticket.encode() - ticket.sign() - return ticket.save_to_string(save_parents=True) - -def start_slice(api, xrn, creds): - 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 - cred = api.getDelegatedCredential(creds) - if not cred: - cred = 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(server.Start, xrn, cred) - threads.get_results() - return 1 - -def stop_slice(api, xrn, creds): - 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 - cred = api.getDelegatedCredential(creds) - if not cred: - cred = 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 - interface = api.aggregates[aggregate] - server = api.get_server(interface, cred) - threads.run(server.Stop, xrn, cred) - threads.get_results() - return 1 - -def reset_slice(api, xrn): - """ - Not implemented - """ - return 1 - -def shutdown(api, xrn, creds): - """ - Not implemented - """ - return 1 - -def status(api, xrn, creds): - """ - Not implemented - """ - return 1 - -def main(): - r = RSpec() - r.parseFile(sys.argv[1]) - rspec = r.toDict() - CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice') - -if __name__ == "__main__": - main() + # gather information from each ticket + rspec = None + initscripts = [] + slivers = [] + object_gid = None + for result in results: + agg_ticket = SfaTicket(string=result) + attrs = agg_ticket.get_attributes() + if not object_gid: + object_gid = agg_ticket.get_gid_object() + if not rspec: + rspec = RSpec(agg_ticket.get_rspec()) + else: + rspec.version.merge(agg_ticket.get_rspec()) + initscripts.extend(attrs.get('initscripts', [])) + slivers.extend(attrs.get('slivers', [])) + + # merge info + attributes = {'initscripts': initscripts, + 'slivers': slivers} + + # create a new ticket + ticket = SfaTicket(subject = slice_hrn) + ticket.set_gid_caller(api.auth.client_gid) + ticket.set_issuer(key=api.key, subject=api.hrn) + ticket.set_gid_object(object_gid) + ticket.set_pubkey(object_gid.get_pubkey()) + #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn)) + ticket.set_attributes(attributes) + ticket.set_rspec(rspec.toxml()) + ticket.encode() + ticket.sign() + return ticket.save_to_string(save_parents=True) + + def start_slice(self, api, xrn, creds): + 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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(server.Start, xrn, cred) + threads.get_results() + return 1 + + def stop_slice(self, api, xrn, creds): + 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 + cred = api.getDelegatedCredential(creds) + if not cred: + cred = 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 + interface = api.aggregates[aggregate] + server = api.server_proxy(interface, cred) + threads.run(server.Stop, xrn, cred) + threads.get_results() + return 1 + + def reset_slice(self, api, xrn): + """ + Not implemented + """ + return 1 + + def shutdown(self, api, xrn, creds): + """ + Not implemented + """ + return 1 + + def status(self, api, xrn, creds): + """ + Not implemented + """ + return 1