def get_credential(api, xrn, type, is_self=False): # 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 # get record info auth_info = api.auth.get_auth_info(auth_hrn) table = SfaTable() records = table.findObjects({'type': type, 'hrn': hrn}) if not records: raise RecordNotFound(hrn) record = records[0] # verify_cancreate_credential requires that the member lists # (researchers, pis, etc) be filled in api.fill_record_info(record) if record['type']=='user': if not record['enabled']: raise AccountNotEnabled(": PlanetLab account %s is not enabled. Please contact your site PI" %(record['email'])) # get the callers gid # if this is a self cred the record's gid is the caller's gid if is_self: caller_hrn = hrn caller_gid = record.get_gid_object() else: caller_gid = api.auth.client_cred.get_gid_caller() caller_hrn = caller_gid.get_hrn() object_hrn = record.get_gid_object().get_hrn() rights = api.auth.determine_user_rights(caller_hrn, record) # make sure caller has rights to this object if rights.is_empty(): raise PermissionError(caller_hrn + " has no rights to " + record['name']) 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 'expires' in record: new_cred.set_expiration(int(record['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)
def resolve(api, xrns, type=None, full=True): # load all known registry names into a prefix tree and attempt to find # the longest matching prefix if not isinstance(xrns, types.ListType): if not type: type = Xrn(xrns).get_type() xrns = [xrns] hrns = [urn_to_hrn(xrn)[0] for xrn in xrns] # create a dict where key is a registry hrn and its value is a # 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() peer_records = registries[registry_hrn].Resolve(xrns, credential) records.extend([SfaRecord(dict=record).as_dict() for record in peer_records]) # try resolving the remaining unfound records at the local registry remaining_hrns = set(hrns).difference([record['hrn'] for record in records]) # convert set to list remaining_hrns = [hrn for hrn in remaining_hrns] table = SfaTable() local_records = table.findObjects({'hrn': remaining_hrns}) if full: api.fill_record_info(local_records) # convert local record objects to dicts records.extend([dict(record) for record in local_records]) if not records: raise RecordNotFound(str(hrns)) if type: records = filter(lambda rec: rec['type'] in [type], records) return records
def call(self): # verify that the callers's ip address exist in the db and is an inteface # for a node in the db (ip, port) = self.api.remote_addr interfaces = self.api.plshell.GetInterfaces(self.api.plauth, {'ip': ip}, ['node_id']) if not interfaces: raise NonExistingRecord("no such ip %(ip)s" % locals()) nodes = self.api.plshell.GetNodes(self.api.plauth, [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 table = SfaTable() records = table.findObjects({'type': 'node', 'pointer': node['node_id']}) if not records: raise RecordNotFound("pointer:" + str(node['node_id'])) record = records[0] # generate a new keypair and gid uuid = create_uuid() pkey = Keypair(create=True) urn = hrn_to_urn(record['hrn'], record['type']) gid_object = self.api.auth.hierarchy.create_gid(urn, uuid, pkey) gid = gid_object.save_to_string(save_parents=True) record['gid'] = gid record.set_gid(gid) # update the record table.update(record) # 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
def update(api, record_dict): new_record = SfaRecord(dict = record_dict) type = new_record['type'] hrn = new_record['hrn'] urn = hrn_to_urn(hrn,type) table = SfaTable() # make sure the record exists records = table.findObjects({'type': type, 'hrn': hrn}) if not records: raise RecordNotFound(hrn) record = records[0] record['last_updated'] = time.gmtime() # Update_membership needs the membership lists in the existing record # filled in, so it can see if members were added or removed api.fill_record_info(record) # 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'] # update the PLC information that was specified with the record if (type == "authority"): api.plshell.UpdateSite(api.plauth, pointer, new_record) elif type == "slice": pl_record=api.sfa_fields_to_pl_fields(type, hrn, new_record) if 'name' in pl_record: pl_record.pop('name') api.plshell.UpdateSlice(api.plauth, pointer, pl_record) elif type == "user": # SMBAKER: UpdatePerson only allows a limited set of fields to be # updated. Ideally we should have a more generic way of doing # this. I copied the field names from UpdatePerson.py... update_fields = {} all_fields = new_record for key in all_fields.keys(): if key in ['first_name', 'last_name', 'title', 'email', 'password', 'phone', 'url', 'bio', 'accepted_aup', 'enabled']: update_fields[key] = all_fields[key] api.plshell.UpdatePerson(api.plauth, pointer, update_fields) if 'key' in new_record and new_record['key']: # must check this key against the previous one if it exists persons = api.plshell.GetPersons(api.plauth, [pointer], ['key_ids']) person = persons[0] keys = person['key_ids'] keys = api.plshell.GetKeys(api.plauth, person['key_ids']) key_exists = False if isinstance(new_record['key'], types.ListType): new_key = new_record['key'][0] else: new_key = new_record['key'] # Delete all stale keys for key in keys: if new_record['key'] != key['key']: api.plshell.DeleteKey(api.plauth, key['key_id']) else: key_exists = True if not key_exists: api.plshell.AddPersonKey(api.plauth, pointer, {'key_type': 'ssh', 'key': new_key}) # update the openssl key and gid pkey = convert_public_key(new_key) uuid = create_uuid() gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey) gid = gid_object.save_to_string(save_parents=True) record['gid'] = gid record = SfaRecord(dict=record) table.update(record) elif type == "node": api.plshell.UpdateNode(api.plauth, pointer, new_record) else: raise UnknownSfaType(type) # update membership for researchers, pis, owners, operators api.update_membership(record, new_record) return 1