import types # for get_key_from_incoming_ip import tempfile import os import commands from sfa.util.faults import RecordNotFound, AccountNotEnabled, PermissionError, MissingAuthority, \ UnknownSfaType, ExistingRecord, NonExistingRecord from sfa.util.sfatime import utcparse, datetime_to_epoch from sfa.util.prefixTree import prefixTree from sfa.util.xrn import Xrn, get_authority, hrn_to_urn, urn_to_hrn from sfa.util.version import version_core from sfa.util.sfalogging import logger from sfa.trust.gid import GID from sfa.trust.credential import Credential from sfa.trust.certificate import Certificate, Keypair, convert_public_key from sfa.trust.gid import create_uuid from sfa.storage.model import make_record, RegRecord, RegAuthority, RegUser, RegSlice, RegKey, \ augment_with_sfa_builtins from sfa.storage.alchemy import dbsession ### the types that we need to exclude from sqlobjects before being able to dump # them on the xmlrpc wire from sqlalchemy.orm.collections import InstrumentedList class RegistryManager: def __init__ (self, config): pass # The GENI GetVersion call def GetVersion(self, api, options): peers = dict ( [ (hrn,interface.get_url()) for (hrn,interface) in api.registries.iteritems() if hrn != api.hrn]) xrn=Xrn(api.hrn) return version_core({'interface':'registry', 'sfa': 2, 'geni_api': 2, 'hrn':xrn.get_hrn(), 'urn':xrn.get_urn(), 'peers':peers}) def GetCredential(self, api, xrn, type, caller_xrn=None): # convert xrn to hrn if type: hrn = urn_to_hrn(xrn)[0] else: hrn, type = urn_to_hrn(xrn) # Is this a root or sub authority auth_hrn = api.auth.get_authority(hrn) if not auth_hrn or hrn == api.config.SFA_INTERFACE_HRN: auth_hrn = hrn auth_info = api.auth.get_auth_info(auth_hrn) # get record info record=dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).first() if not record: raise RecordNotFound("hrn=%s, type=%s"%(hrn,type)) # get the callers gid # if caller_xrn is not specified assume the caller is the record # object itself. if not caller_xrn: caller_hrn = hrn caller_gid = record.get_gid_object() else: caller_hrn, caller_type = urn_to_hrn(caller_xrn) if caller_type: caller_record = dbsession.query(RegRecord).filter_by(hrn=caller_hrn,type=caller_type).first() else: caller_record = dbsession.query(RegRecord).filter_by(hrn=caller_hrn).first() if not caller_record: raise RecordNotFound("Unable to associated caller (hrn=%s, type=%s) with credential for (hrn: %s, type: %s)"%(caller_hrn, caller_type, hrn, type)) caller_gid = GID(string=caller_record.gid) object_hrn = record.get_gid_object().get_hrn() # call the builtin authorization/credential generation engine rights = api.auth.determine_user_rights(caller_hrn, record) # make sure caller has rights to this object if rights.is_empty(): raise PermissionError("%s has no rights to %s (%s)" % \ (caller_hrn, object_hrn, xrn)) object_gid = GID(string=record.gid) new_cred = Credential(subject = object_gid.get_subject()) new_cred.set_gid_caller(caller_gid) new_cred.set_gid_object(object_gid) new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename()) #new_cred.set_pubkey(object_gid.get_pubkey()) new_cred.set_privileges(rights) new_cred.get_privileges().delegate_all_privileges(True) if hasattr(record,'expires'): date = utcparse(record.expires) expires = datetime_to_epoch(date) new_cred.set_expiration(int(expires)) auth_kind = "authority,ma,sa" # Parent not necessary, verify with certs #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind)) new_cred.encode() new_cred.sign() return new_cred.save_to_string(save_parents=True) # the default for full, which means 'dig into the testbed as well', should be false def Resolve(self, api, xrns, type=None, details=False): if not isinstance(xrns, types.ListType): # try to infer type if not set and we get a single input if not type: type = Xrn(xrns).get_type() xrns = [xrns] hrns = [urn_to_hrn(xrn)[0] for xrn in xrns] # load all known registry names into a prefix tree and attempt to find # the longest matching prefix # create a dict where key is a registry hrn and its value is a list # of hrns at that registry (determined by the known prefix tree). xrn_dict = {} registries = api.registries tree = prefixTree() registry_hrns = registries.keys() tree.load(registry_hrns) for xrn in xrns: registry_hrn = tree.best_match(urn_to_hrn(xrn)[0]) if registry_hrn not in xrn_dict: xrn_dict[registry_hrn] = [] xrn_dict[registry_hrn].append(xrn) records = [] for registry_hrn in xrn_dict: # skip the hrn without a registry hrn # XX should we let the user know the authority is unknown? if not registry_hrn: continue # if the best match (longest matching hrn) is not the local registry, # forward the request xrns = xrn_dict[registry_hrn] if registry_hrn != api.hrn: credential = api.getCredential() interface = api.registries[registry_hrn] server_proxy = api.server_proxy(interface, credential) # should propagate the details flag but that's not supported in the xmlrpc interface yet #peer_records = server_proxy.Resolve(xrns, credential,type, details=details) peer_records = server_proxy.Resolve(xrns, credential) # pass foreign records as-is # previous code used to read # records.extend([SfaRecord(dict=record).as_dict() for record in peer_records]) # not sure why the records coming through xmlrpc had to be processed at all records.extend(peer_records) # try resolving the remaining unfound records at the local registry local_hrns = list ( set(hrns).difference([record['hrn'] for record in records]) ) # local_records = dbsession.query(RegRecord).filter(RegRecord.hrn.in_(local_hrns)) if type: local_records = local_records.filter_by(type=type) local_records=local_records.all() for local_record in local_records: augment_with_sfa_builtins (local_record) logger.info("Resolve, (details=%s,type=%s) local_records=%s "%(details,type,local_records)) local_dicts = [ record.__dict__ for record in local_records ] if details: # in details mode we get as much info as we can, which involves contacting the # testbed for getting implementation details about the record self.driver.augment_records_with_testbed_info(local_dicts) # also we fill the 'url' field for known authorities # used to be in the driver code, sounds like a poorman thing though def solve_neighbour_url (record): if not record.type.startswith('authority'): return hrn=record.hrn for neighbour_dict in [ api.aggregates, api.registries ]: if hrn in neighbour_dict: record.url=neighbour_dict[hrn].get_url() return for record in local_records: solve_neighbour_url (record) # convert local record objects to dicts for xmlrpc # xxx somehow here calling dict(record) issues a weird error # however record.todict() seems to work fine # records.extend( [ dict(record) for record in local_records ] ) records.extend( [ record.todict(exclude_types=[InstrumentedList]) for record in local_records ] ) if not records: raise RecordNotFound(str(hrns)) return records def List (self, api, xrn, origin_hrn=None, options={}): # load all know registry names into a prefix tree and attempt to find # the longest matching prefix hrn, type = urn_to_hrn(xrn) registries = api.registries registry_hrns = registries.keys() tree = prefixTree() tree.load(registry_hrns) registry_hrn = tree.best_match(hrn) #if there was no match then this record belongs to an unknow registry if not registry_hrn: raise MissingAuthority(xrn) # if the best match (longest matching hrn) is not the local registry, # forward the request record_dicts = [] if registry_hrn != api.hrn: credential = api.getCredential() interface = api.registries[registry_hrn] server_proxy = api.server_proxy(interface, credential) record_list = server_proxy.List(xrn, credential, options) # same as above, no need to process what comes from through xmlrpc # pass foreign records as-is record_dicts = record_list # if we still have not found the record yet, try the local registry if not record_dicts: recursive = False if ('recursive' in options and options['recursive']): recursive = True elif hrn.endswith('*'): hrn = hrn[:-1] recursive = True if not api.auth.hierarchy.auth_exists(hrn): raise MissingAuthority(hrn) if recursive: records = dbsession.query(RegRecord).filter(RegRecord.hrn.startswith(hrn)) else: records = dbsession.query(RegRecord).filter_by(authority=hrn) # so that sfi list can show more than plain names... for record in records: augment_with_sfa_builtins (record) record_dicts=[ record.todict(exclude_types=[InstrumentedList]) for record in records ] return record_dicts def CreateGid(self, api, xrn, cert): # get the authority authority = Xrn(xrn=xrn).get_authority_hrn() auth_info = api.auth.get_auth_info(authority) if not cert: pkey = Keypair(create=True) else: certificate = Certificate(string=cert) pkey = certificate.get_pubkey() gid = api.auth.hierarchy.create_gid(xrn, create_uuid(), pkey) return gid.save_to_string(save_parents=True) #################### # utility for handling relationships among the SFA objects # subject_record describes the subject of the relationships # ref_record contains the target values for the various relationships we need to manage # (to begin with, this is just the slice x person (researcher) and authority x person (pi) relationships) def update_driver_relations (self, subject_obj, ref_obj): type=subject_obj.type #for (k,v) in subject_obj.__dict__.items(): print k,'=',v if type=='slice' and hasattr(ref_obj,'researcher'): self.update_driver_relation(subject_obj, ref_obj.researcher, 'user', 'researcher') elif type=='authority' and hasattr(ref_obj,'pi'): self.update_driver_relation(subject_obj,ref_obj.pi, 'user', 'pi') # field_key is the name of one field in the record, typically 'researcher' for a 'slice' record # hrns is the list of hrns that should be linked to the subject from now on # target_type would be e.g. 'user' in the 'slice' x 'researcher' example def update_driver_relation (self, record_obj, hrns, target_type, relation_name): # locate the linked objects in our db subject_type=record_obj.type subject_id=record_obj.pointer # get the 'pointer' field of all matching records link_id_tuples = dbsession.query(RegRecord.pointer).filter_by(type=target_type).filter(RegRecord.hrn.in_(hrns)).all() # sqlalchemy returns named tuples for columns link_ids = [ tuple.pointer for tuple in link_id_tuples ] self.driver.update_relation (subject_type, target_type, relation_name, subject_id, link_ids) def Register(self, api, record_dict): hrn, type = record_dict['hrn'], record_dict['type'] urn = hrn_to_urn(hrn,type) # validate the type if type not in ['authority', 'slice', 'node', 'user']: raise UnknownSfaType(type) # check if record_dict already exists existing_records = dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).all() if existing_records: raise ExistingRecord(hrn) assert ('type' in record_dict) # returns the right type of RegRecord according to type in record record = make_record(dict=record_dict) record.just_created() record.authority = get_authority(record.hrn) auth_info = api.auth.get_auth_info(record.authority) pub_key = None # make sure record has a gid if not record.gid: uuid = create_uuid() pkey = Keypair(create=True) if getattr(record,'keys',None): pub_key=record.keys # use only first key in record if isinstance(record.keys, types.ListType): pub_key = record.keys[0] pkey = convert_public_key(pub_key) gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey) gid = gid_object.save_to_string(save_parents=True) record.gid = gid if isinstance (record, RegAuthority): # update the tree if not api.auth.hierarchy.auth_exists(hrn): api.auth.hierarchy.create_auth(hrn_to_urn(hrn,'authority')) # get the GID from the newly created authority auth_info = api.auth.get_auth_info(hrn) gid = auth_info.get_gid_object() record.gid=gid.save_to_string(save_parents=True) # locate objects for relationships pi_hrns = getattr(record,'pi',None) if pi_hrns is not None: record.update_pis (pi_hrns) elif isinstance (record, RegSlice): researcher_hrns = getattr(record,'researcher',None) if researcher_hrns is not None: record.update_researchers (researcher_hrns) elif isinstance (record, RegUser): # create RegKey objects for incoming keys if hasattr(record,'keys'): logger.debug ("creating %d keys for user %s"%(len(record.keys),record.hrn)) record.reg_keys = [ RegKey (key) for key in record.keys ] # update testbed-specific data if needed pointer = self.driver.register (record.__dict__, hrn, pub_key) record.pointer=pointer dbsession.add(record) dbsession.commit() # update membership for researchers, pis, owners, operators self.update_driver_relations (record, record) return record.get_gid_object().save_to_string(save_parents=True) def Update(self, api, record_dict): assert ('type' in record_dict) new_record=make_record(dict=record_dict) (type,hrn) = (new_record.type, new_record.hrn) # make sure the record exists record = dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).first() if not record: raise RecordNotFound("hrn=%s, type=%s"%(hrn,type)) record.just_updated() # Use the pointer from the existing record, not the one that the user # gave us. This prevents the user from inserting a forged pointer pointer = record.pointer # is there a change in keys ? new_key=None if type=='user': if getattr(new_key,'keys',None): new_key=new_record.keys if isinstance (new_key,types.ListType): new_key=new_key[0] # take new_key into account if new_key: # update the openssl key and gid pkey = convert_public_key(new_key) uuid = create_uuid() urn = hrn_to_urn(hrn,type) gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey) gid = gid_object.save_to_string(save_parents=True) record.gid = gid dsession.commit() # xxx should do side effects from new_record to record # not too sure how to do that # not too big a deal with planetlab as the driver is authoritative, but... # update native relations if isinstance (record, RegSlice): researcher_hrns = getattr(new_record,'researcher',None) if researcher_hrns is not None: record.update_researchers (researcher_hrns) dbsession.commit() elif isinstance (record, RegAuthority): pi_hrns = getattr(new_record,'pi',None) if pi_hrns is not None: record.update_pis (pi_hrns) dbsession.commit() # update the PLC information that was specified with the record # xxx oddly enough, without this useless statement, # record.__dict__ as received by the driver seems to be off # anyway the driver should receive an object # (and then extract __dict__ itself if needed) print "DO NOT REMOVE ME before driver.update, record=%s"%record if not self.driver.update (record.__dict__, new_record.__dict__, hrn, new_key): logger.warning("driver.update failed") # update membership for researchers, pis, owners, operators self.update_driver_relations (record, new_record) return 1 # expecting an Xrn instance def Remove(self, api, xrn, origin_hrn=None): hrn=xrn.get_hrn() type=xrn.get_type() request=dbsession.query(RegRecord).filter_by(hrn=hrn) if type and type not in ['all', '*']: request=request.filter_by(type=type) record = request.first() if not record: msg="Could not find hrn %s"%hrn if type: msg += " type=%s"%type raise RecordNotFound(msg) type = record.type if type not in ['slice', 'user', 'node', 'authority'] : raise UnknownSfaType(type) credential = api.getCredential() registries = api.registries # Try to remove the object from the PLCDB of federated agg. # This is attempted before removing the object from the local agg's PLCDB and sfa table if hrn.startswith(api.hrn) and type in ['user', 'slice', 'authority']: for registry in registries: if registry not in [api.hrn]: try: result=registries[registry].remove_peer_object(credential, record, origin_hrn) except: pass # call testbed callback first # IIUC this is done on the local testbed TOO because of the refreshpeer link if not self.driver.remove(record.__dict__): logger.warning("driver.remove failed") # delete from sfa db dbsession.delete(record) dbsession.commit() return 1 # This is a PLC-specific thing, won't work with other platforms def get_key_from_incoming_ip (self, api): # verify that the callers's ip address exist in the db and is an interface # for a node in the db (ip, port) = api.remote_addr interfaces = self.driver.shell.GetInterfaces({'ip': ip}, ['node_id']) if not interfaces: raise NonExistingRecord("no such ip %(ip)s" % locals()) nodes = self.driver.shell.GetNodes([interfaces[0]['node_id']], ['node_id', 'hostname']) if not nodes: raise NonExistingRecord("no such node using ip %(ip)s" % locals()) node = nodes[0] # look up the sfa record record=dbsession.query(RegRecord).filter_by(type='node',pointer=node['node_id']).first() if not record: raise RecordNotFound("node with pointer %s"%node['node_id']) # generate a new keypair and gid uuid = create_uuid() pkey = Keypair(create=True) urn = hrn_to_urn(record.hrn, record.type) gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey) gid = gid_object.save_to_string(save_parents=True) record.gid = gid # update the record dbsession.commit() # attempt the scp the key # and gid onto the node # this will only work for planetlab based components (kfd, key_filename) = tempfile.mkstemp() (gfd, gid_filename) = tempfile.mkstemp() pkey.save_to_file(key_filename) gid_object.save_to_file(gid_filename, save_parents=True) host = node['hostname'] key_dest="/etc/sfa/node.key" gid_dest="/etc/sfa/node.gid" scp = "/usr/bin/scp" #identity = "/etc/planetlab/root_ssh_key.rsa" identity = "/etc/sfa/root_ssh_key" scp_options=" -i %(identity)s " % locals() scp_options+="-o StrictHostKeyChecking=no " % locals() scp_key_command="%(scp)s %(scp_options)s %(key_filename)s root@%(host)s:%(key_dest)s" %\ locals() scp_gid_command="%(scp)s %(scp_options)s %(gid_filename)s root@%(host)s:%(gid_dest)s" %\ locals() all_commands = [scp_key_command, scp_gid_command] for command in all_commands: (status, output) = commands.getstatusoutput(command) if status: raise Exception, output for filename in [key_filename, gid_filename]: os.unlink(filename) return 1