sfa/managers/registry_manager_openstack.py

   1 import types
   2 # for get_key_from_incoming_ip
   3 import tempfile
   4 import os
   5 import commands
   6
   7 from sfa.util.faults import RecordNotFound, AccountNotEnabled, PermissionError, MissingAuthority, \
   8     UnknownSfaType, ExistingRecord, NonExistingRecord
   9 from sfa.util.sfatime import utcparse, datetime_to_epoch
  10 from sfa.util.prefixTree import prefixTree
  11 from sfa.util.xrn import Xrn, get_authority, hrn_to_urn, urn_to_hrn
  12 from sfa.util.plxrn import hrn_to_pl_login_base
  13 from sfa.util.version import version_core
  14 from sfa.util.sfalogging import logger
  15
  16 from sfa.trust.gid import GID
  17 from sfa.trust.credential import Credential
  18 from sfa.trust.certificate import Certificate, Keypair, convert_public_key
  19 from sfa.trust.gid import create_uuid
  20
  21 from sfa.storage.persistentobjs import make_record,RegRecord
  22 from sfa.storage.alchemy import dbsession
  23
  24 from sfa.managers.registry_manager import RegistryManager
  25
  26 class RegistryManager(RegistryManager):
  27
  28     def GetCredential(self, api, xrn, type, is_self=False):
  29         # convert xrn to hrn
  30         if type:
  31             hrn = urn_to_hrn(xrn)[0]
  32         else:
  33             hrn, type = urn_to_hrn(xrn)
  34
  35         # Is this a root or sub authority
  36         auth_hrn = api.auth.get_authority(hrn)
  37         if not auth_hrn or hrn == api.config.SFA_INTERFACE_HRN:
  38             auth_hrn = hrn
  39         auth_info = api.auth.get_auth_info(auth_hrn)
  40         # get record info
  41         record=dbsession.query(RegRecord).filter_by(type=type,hrn=hrn).first()
  42         if not record:
  43             raise RecordNotFound("hrn=%s, type=%s"%(hrn,type))
  44
  45         # verify_cancreate_credential requires that the member lists
  46         # (researchers, pis, etc) be filled in
  47         logger.debug("get credential before augment dict, keys=%s"%record.__dict__.keys())
  48         self.driver.augment_records_with_testbed_info (record.__dict__)
  49         logger.debug("get credential after augment dict, keys=%s"%record.__dict__.keys())
  50         if not self.driver.is_enabled (record.__dict__):
  51               raise AccountNotEnabled(": PlanetLab account %s is not enabled. Please contact your site PI" %(record.email))
  52
  53         # get the callers gid
  54         # if this is a self cred the record's gid is the caller's gid
  55         if is_self:
  56             caller_hrn = hrn
  57             caller_gid = record.get_gid_object()
  58         else:
  59             caller_gid = api.auth.client_cred.get_gid_caller()
  60             caller_hrn = caller_gid.get_hrn()
  61
  62         object_hrn = record.get_gid_object().get_hrn()
  63         rights = api.auth.determine_user_rights(caller_hrn, record.__dict__)
  64         # make sure caller has rights to this object
  65         if rights.is_empty():
  66             raise PermissionError(caller_hrn + " has no rights to " + record.hrn)
  67
  68         object_gid = GID(string=record.gid)
  69         new_cred = Credential(subject = object_gid.get_subject())
  70         new_cred.set_gid_caller(caller_gid)
  71         new_cred.set_gid_object(object_gid)
  72         new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename())
  73         #new_cred.set_pubkey(object_gid.get_pubkey())
  74         new_cred.set_privileges(rights)
  75         new_cred.get_privileges().delegate_all_privileges(True)
  76         if hasattr(record,'expires'):
  77             date = utcparse(record.expires)
  78             expires = datetime_to_epoch(date)
  79             new_cred.set_expiration(int(expires))
  80         auth_kind = "authority,ma,sa"
  81         # Parent not necessary, verify with certs
  82         #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
  83         new_cred.encode()
  84         new_cred.sign()
  85
  86         return new_cred.save_to_string(save_parents=True)
  87
  88
  89     # subject_record describes the subject of the relationships
  90     # ref_record contains the target values for the various relationships we need to manage
  91     # (to begin with, this is just the slice x person relationship)
  92     def update_relations (self, subject_obj, ref_obj):
  93         type=subject_obj.type
  94         if type=='slice':
  95             self.update_relation(subject_obj, 'researcher', ref_obj.researcher, 'user')
  96
  97     # field_key is the name of one field in the record, typically 'researcher' for a 'slice' record
  98     # hrns is the list of hrns that should be linked to the subject from now on
  99     # target_type would be e.g. 'user' in the 'slice' x 'researcher' example
 100     def update_relation (self, record_obj, field_key, hrns, target_type):
 101         # locate the linked objects in our db
 102         subject_type=record_obj.type
 103         subject_id=record_obj.pointer
 104         # get the 'pointer' field of all matching records
 105         link_id_tuples = dbsession.query(RegRecord.pointer).filter_by(type=target_type).filter(RegRecord.hrn.in_(hrns)).all()
 106         # sqlalchemy returns named tuples for columns
 107         link_ids = [ tuple.pointer for tuple in link_id_tuples ]
 108         self.driver.update_relation (subject_type, target_type, subject_id, link_ids)
 109