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.model 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, caller_xrn = None):
  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(hrn=hrn).first()
  42         if type:
  43             record = record.filter_by(type=type)
  44         if not record:
  45             raise RecordNotFound("hrn=%s, type=%s"%(hrn,type))
  46
  47         # verify_cancreate_credential requires that the member lists
  48         # (researchers, pis, etc) be filled in
  49         logger.debug("get credential before augment dict, keys=%s"%record.__dict__.keys())
  50         self.driver.augment_records_with_testbed_info (record.__dict__)
  51         logger.debug("get credential after augment dict, keys=%s"%record.__dict__.keys())
  52         if not self.driver.is_enabled (record.__dict__):
  53               raise AccountNotEnabled(": PlanetLab account %s is not enabled. Please contact your site PI" %(record.email))
  54
  55         # get the callers gid
  56         # if caller_xrn is not specified assume the caller is the record
  57         # object itself.
  58         if not caller_xrn:
  59             caller_hrn = hrn
  60             caller_gid = record.get_gid_object()
  61         else:
  62             caller_hrn, caller_type = urn_to_hrn(caller_xrn)
  63             caller_record = dbsession.query(RegRecord).filter_by(hrn=caller_hrn).first()
  64             if caller_type:
  65                 caller_record = caller_record.filter_by(type=caller_type)
  66             if not caller_record:
  67                 raise RecordNotFound("Unable to associated caller (hrn=%s, type=%s) with credential for (hrn: %s, type: %s)"%(caller_hrn, caller_type, hrn, type))
  68             caller_gid = GID(string=caller_record.gid)
  69
  70         object_hrn = record.get_gid_object().get_hrn()
  71         rights = api.auth.determine_user_rights(caller_hrn, record.__dict__)
  72         # make sure caller has rights to this object
  73         if rights.is_empty():
  74             raise PermissionError(caller_hrn + " has no rights to " + record.hrn)
  75
  76         object_gid = GID(string=record.gid)
  77         new_cred = Credential(subject = object_gid.get_subject())
  78         new_cred.set_gid_caller(caller_gid)
  79         new_cred.set_gid_object(object_gid)
  80         new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename())
  81         #new_cred.set_pubkey(object_gid.get_pubkey())
  82         new_cred.set_privileges(rights)
  83         new_cred.get_privileges().delegate_all_privileges(True)
  84         if hasattr(record,'expires'):
  85             date = utcparse(record.expires)
  86             expires = datetime_to_epoch(date)
  87             new_cred.set_expiration(int(expires))
  88         auth_kind = "authority,ma,sa"
  89         # Parent not necessary, verify with certs
  90         #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
  91         new_cred.encode()
  92         new_cred.sign()
  93
  94         return new_cred.save_to_string(save_parents=True)
  95
  96
  97     # subject_record describes the subject of the relationships
  98     # ref_record contains the target values for the various relationships we need to manage
  99     # (to begin with, this is just the slice x person relationship)
 100     def update_relations (self, subject_obj, ref_obj):
 101         type=subject_obj.type
 102         if type=='slice':
 103             self.update_relation(subject_obj, 'researcher', ref_obj.researcher, 'user')
 104
 105     # field_key is the name of one field in the record, typically 'researcher' for a 'slice' record
 106     # hrns is the list of hrns that should be linked to the subject from now on
 107     # target_type would be e.g. 'user' in the 'slice' x 'researcher' example
 108     def update_relation (self, record_obj, field_key, hrns, target_type):
 109         # locate the linked objects in our db
 110         subject_type=record_obj.type
 111         subject_id=record_obj.pointer
 112         # get the 'pointer' field of all matching records
 113         link_id_tuples = dbsession.query(RegRecord.pointer).filter_by(type=target_type).filter(RegRecord.hrn.in_(hrns)).all()
 114         # sqlalchemy returns named tuples for columns
 115         link_ids = [ tuple.pointer for tuple in link_id_tuples ]
 116         self.driver.update_relation (subject_type, target_type, subject_id, link_ids)
 117