-from sfa.util.faults import SfaAPIError
+import os, os.path
+import datetime
+
+from sfa.util.faults import SfaFault, SfaAPIError, RecordNotFound
+from sfa.util.genicode import GENICODE
from sfa.util.config import Config
from sfa.util.cache import Cache
+
from sfa.trust.auth import Auth
from sfa.trust.certificate import Keypair, Certificate
from sfa.trust.credential import Credential
-# this is wrong all right, but temporary
-from sfa.managers.managerwrapper import ManagerWrapper, import_manager
+from sfa.trust.rights import determine_rights
+from sfa.util.version import version_core
from sfa.server.xmlrpcapi import XmlrpcApi
-import os
-import datetime
+from sfa.client.return_value import ReturnValue
+
####################
class SfaApi (XmlrpcApi):
"""
An SfaApi instance is a basic xmlrcp service
augmented with the local cryptographic material and hrn
- It also has the notion of neighbour sfa services
- as defined in /etc/sfa/{aggregates,registries}.xml
- It has no a priori knowledge of the underlying testbed
+
+ It also has the notion of its own interface (a string describing
+ whether we run a registry, aggregate or slicemgr) and has
+ the notion of neighbour sfa services as defined
+ in /etc/sfa/{aggregates,registries}.xml
+
+ Finally it contains a cache instance
+
+ It gets augmented by the generic layer with
+ (*) an instance of manager (actually a manager module for now)
+ (*) which in turn holds an instance of a testbed driver
+ For convenience api.manager.driver == api.driver
"""
def __init__ (self, encoding="utf-8", methods='sfa.methods',
- config = "/etc/sfa/sfa_config.py",
+ config = "/etc/sfa/sfa_config",
peer_cert = None, interface = None,
key_file = None, cert_file = None, cache = None):
return
# Load configuration
self.config = Config(config)
+ self.credential = None
self.auth = Auth(peer_cert)
self.interface = interface
self.hrn = self.config.SFA_INTERFACE_HRN
self.cache = cache
if self.cache is None:
self.cache = Cache()
- self.credential = None
# load registries
from sfa.server.registry import Registries
# load aggregates
from sfa.server.aggregate import Aggregates
self.aggregates = Aggregates()
+
+ # filled later on by generic/Generic
+ self.manager=None
-
- def get_interface_manager(self, manager_base = 'sfa.managers'):
- """
- Returns the appropriate manager module for this interface.
- Modules are usually found in sfa/managers/
- """
- manager=None
- if self.interface in ['registry']:
- manager=import_manager ("registry", self.config.SFA_REGISTRY_TYPE)
- elif self.interface in ['aggregate']:
- manager=import_manager ("aggregate", self.config.SFA_AGGREGATE_TYPE)
- elif self.interface in ['slicemgr', 'sm']:
- manager=import_manager ("slice", self.config.SFA_SM_TYPE)
- elif self.interface in ['component', 'cm']:
- manager=import_manager ("component", self.config.SFA_CM_TYPE)
- if not manager:
- raise SfaAPIError("No manager for interface: %s" % self.interface)
-
- # this isnt necessary but will help to produce better error messages
- # if someone tries to access an operation this manager doesn't implement
- manager = ManagerWrapper(manager, self.interface)
-
- return manager
-
- def get_server(self, interface, cred, timeout=30):
+ def server_proxy(self, interface, cred, timeout=30):
"""
Returns a connection to the specified interface. Use the specified
credential to determine the caller and look for the caller's key/cert
auth_info = hierarchy.get_auth_info(caller_gid.get_hrn())
key_file = auth_info.get_privkey_filename()
cert_file = auth_info.get_gid_filename()
- server = interface.get_server(key_file, cert_file, timeout)
+ server = interface.server_proxy(key_file, cert_file, timeout)
return server
- def getCredential(self):
+ def getCredential(self, minimumExpiration=0):
"""
- Return a valid credential for this interface.
+ Return a valid credential for this interface.
"""
type = 'authority'
path = self.config.SFA_DATA_DIR
filename = ".".join([self.interface, self.hrn, type, "cred"])
- cred_filename = path + os.sep + filename
+ cred_filename = os.path.join(path,filename)
cred = None
if os.path.isfile(cred_filename):
cred = Credential(filename = cred_filename)
# make sure cred isnt expired
if not cred.get_expiration or \
- datetime.datetime.utcnow() < cred.get_expiration():
+ datetime.datetime.utcnow() + datetime.timedelta(seconds=minimumExpiration) < cred.get_expiration():
return cred.save_to_string(save_parents=True)
# get a new credential
if self.interface in ['registry']:
- cred = self.__getCredentialRaw()
+ cred = self._getCredentialRaw()
else:
- cred = self.__getCredential()
+ cred = self._getCredential()
cred.save_to_file(cred_filename, save_parents=True)
return cred.save_to_string(save_parents=True)
delegated_cred = None
for cred in creds:
- if hierarchy.auth_exists(Credential(string=cred).get_gid_caller().get_hrn()):
+ if hierarchy.auth_exists(Credential(cred=cred).get_gid_caller().get_hrn()):
delegated_cred = cred
break
return delegated_cred
- def __getCredential(self):
+ def _getCredential(self):
"""
Get our credential from a remote registry
"""
from sfa.server.registry import Registries
registries = Registries()
- registry = registries.get_server(self.hrn, self.key_file, self.cert_file)
+ registry = registries.server_proxy(self.hrn, self.key_file, self.cert_file)
cert_string=self.cert.save_to_string(save_parents=True)
# get self credential
self_cred = registry.GetSelfCredential(cert_string, self.hrn, 'authority')
cred = registry.GetCredential(self_cred, self.hrn, 'authority')
return Credential(string=cred)
- def __getCredentialRaw(self):
+ def _getCredentialRaw(self):
"""
Get our current credential directly from the local registry.
"""
if not auth_hrn or hrn == self.config.SFA_INTERFACE_HRN:
auth_hrn = hrn
auth_info = self.auth.get_auth_info(auth_hrn)
- table = self.SfaTable()
- records = table.findObjects({'hrn': hrn, 'type': 'authority+sa'})
- if not records:
- raise RecordNotFound
- record = records[0]
- type = record['type']
+ from sfa.storage.alchemy import dbsession
+ from sfa.storage.model import RegRecord
+ record = dbsession.query(RegRecord).filter_by(type='authority+sa', hrn=hrn).first()
+ if not record:
+ raise RecordNotFound(hrn)
+ type = record.type
object_gid = record.get_gid_object()
new_cred = Credential(subject = object_gid.get_subject())
new_cred.set_gid_caller(object_gid)
# see if this file exists
# XX This is really the aggregate's credential. Using this is easier than getting
- # the registry's credential from iteslf (ssl errors).
- ma_cred_filename = self.config.SFA_DATA_DIR + os.sep + self.interface + self.hrn + ".ma.cred"
+ # the registry's credential from iteslf (ssl errors).
+ filename = self.interface + self.hrn + ".ma.cred"
+ ma_cred_path = os.path.join(self.config.SFA_DATA_DIR,filename)
try:
- self.credential = Credential(filename = ma_cred_filename)
+ self.credential = Credential(filename = ma_cred_path)
except IOError:
self.credential = self.getCredentialFromRegistry()
if self.cache:
server_version = self.cache.get(cache_key)
if not server_version:
- server_version = server.GetVersion()
+ result = server.GetVersion()
+ server_version = ReturnValue.get_value(result)
# cache version for 24 hours
self.cache.add(cache_key, server_version, ttl= 60*60*24)
return server_version
+
+
+ def get_geni_code(self, result):
+ code = {
+ 'geni_code': GENICODE.SUCCESS,
+ 'am_type': 'sfa',
+ }
+ if isinstance(result, SfaFault):
+ code['geni_code'] = result.faultCode
+ code['am_code'] = result.faultCode
+
+ return code
+
+ def get_geni_value(self, result):
+ value = result
+ if isinstance(result, SfaFault):
+ value = ""
+ return value
+
+ def get_geni_output(self, result):
+ output = ""
+ if isinstance(result, SfaFault):
+ output = result.faultString
+ return output
+
+ def prepare_response_am(self, result):
+ version = version_core()
+ response = {
+ 'geni_api': 3,
+ 'code': self.get_geni_code(result),
+ 'value': self.get_geni_value(result),
+ 'output': self.get_geni_output(result),
+ }
+ return response
+
+ def prepare_response(self, result, method=""):
+ """
+ Converts the specified result into a standard GENI compliant
+ response
+ """
+ # as of dec 13 2011 we only support API v2
+ if self.interface.lower() in ['aggregate', 'slicemgr']:
+ result = self.prepare_response_am(result)
+ return XmlrpcApi.prepare_response(self, result, method)
+
git://git.onelab.eu / sfa.git / blobdiff