sfa/importer/slabimporter.py

   1 import os
   2 import sys
   3 import datetime
   4 import time
   5
   6 from sfa.util.config import Config
   7 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
   8 from sfa.planetlab.plxrn import PlXrn, slicename_to_hrn, email_to_hrn, hrn_to_pl_slicename
   9
  10 from sfa.senslab.LDAPapi import LDAPapi
  11 from sfa.senslab.slabdriver import SlabDriver
  12 from sfa.senslab.slabpostgres import SliceSenslab, slab_dbsession
  13
  14 from sfa.trust.certificate import Keypair,convert_public_key
  15 from sfa.trust.gid import create_uuid
  16
  17 from sfa.storage.alchemy import dbsession
  18 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
  19 from sfa.storage.dbschema import DBSchema
  20
  21
  22
  23 def _get_site_hrn(site):
  24     hrn = site['name']
  25     return hrn
  26
  27 class SlabImporter:
  28
  29     def __init__ (self, auth_hierarchy, logger):
  30         self.auth_hierarchy = auth_hierarchy
  31         self.logger=logger
  32
  33
  34     def hostname_to_hrn(self,root_auth,login_base,hostname):
  35         return PlXrn(auth=root_auth,hostname = hostname).get_hrn()
  36
  37     def slicename_to_hrn(self, person_hrn):
  38         return  (person_hrn +'_slice')
  39
  40     def add_options (self, parser):
  41         # we don't have any options for now
  42         pass
  43
  44     def find_record_by_type_hrn(self,type,hrn):
  45         return self.records_by_type_hrn.get ( (type, hrn), None)
  46
  47     def locate_by_type_pointer (self, type, pointer):
  48         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  49         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  50         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  "
  51         return ret
  52
  53     def update_just_added_records_dict (self, record):
  54         tuple = (record.type, record.hrn)
  55         if tuple in self.records_by_type_hrn:
  56             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  57             return
  58         self.records_by_type_hrn [ tuple ] = record
  59
  60     def run (self, options):
  61         config = Config()
  62
  63         slabdriver = SlabDriver(config)
  64
  65         #Create special slice table for senslab
  66
  67         if not slabdriver.db.exists('slice_senslab'):
  68             slabdriver.db.createtable('slice_senslab')
  69             self.logger.info ("SlabImporter.run:  slice_senslab table created ")
  70
  71         #retrieve all existing SFA objects
  72         all_records = dbsession.query(RegRecord).all()
  73
  74         #create hash by (type,hrn)
  75         #used  to know if a given record is already known to SFA
  76
  77         self.records_by_type_hrn = \
  78             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  79
  80         # create hash by (type,pointer)
  81         self.records_by_type_pointer = \
  82             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  83
  84         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  85         for record in all_records:
  86             record.stale=True
  87
  88         nodes_listdict  = slabdriver.GetNodes()
  89         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  90         sites_listdict  = slabdriver.GetSites()
  91
  92         ldap_person_listdict = slabdriver.GetPersons()
  93         slices_listdict = slabdriver.GetSlices()
  94         try:
  95             slices_by_userid = dict ( [ (slice.record_id_user, slice ) for slice in slices_listdict ] )
  96         except TypeError:
  97              self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
  98              pass
  99
 100         for site in sites_listdict:
 101             site_hrn = _get_site_hrn(site)
 102             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 103             if not site_record:
 104                 try:
 105                     urn = hrn_to_urn(site_hrn, 'authority')
 106                     if not self.auth_hierarchy.auth_exists(urn):
 107                         self.auth_hierarchy.create_auth(urn)
 108                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 109                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 110                                                pointer='-1',
 111                                                authority=get_authority(site_hrn))
 112                     site_record.just_created()
 113                     dbsession.add(site_record)
 114                     dbsession.commit()
 115                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 116                     self.update_just_added_records_dict(site_record)
 117                 except:
 118                     # if the site import fails then there is no point in trying to import the
 119                     # site's child records (node, slices, persons), so skip them.
 120                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
 121                     continue
 122             else:
 123                 # xxx update the record ...
 124                 pass
 125             site_record.stale=False
 126
 127          # import node records in site
 128             for node_id in site['node_ids']:
 129                 try:
 130                     node = nodes_by_id[node_id]
 131                 except:
 132                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 133                     continue
 134                 site_auth = get_authority(site_hrn)
 135                 site_name = site['name']
 136                 hrn =  self.hostname_to_hrn(slabdriver.root_auth, site_name, node['hostname'])
 137                 # xxx this sounds suspicious
 138                 if len(hrn) > 64: hrn = hrn[:64]
 139                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 140                 if not node_record:
 141                     try:
 142                         pkey = Keypair(create=True)
 143                         urn = hrn_to_urn(hrn, 'node')
 144                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 145                         node_record = RegNode (hrn=hrn, gid=node_gid,
 146                                                 pointer = '-1',
 147                                                 authority=get_authority(hrn))
 148                         node_record.just_created()
 149                         dbsession.add(node_record)
 150                         dbsession.commit()
 151                         self.logger.info("SlabImporter: imported node: %s" % node_record)
 152                         print>>sys.stderr, "\r\n \t\t\t SLAB IMPORTER NODE IMPORT NOTnode_record %s " %(node_record)
 153                         self.update_just_added_records_dict(node_record)
 154                     except:
 155                         self.logger.log_exc("SlabImporter: failed to import node")
 156                 else:
 157                     # xxx update the record ...
 158                     pass
 159                 node_record.stale=False
 160
 161
 162             # import persons
 163             for person in ldap_person_listdict :
 164
 165                 person_hrn = person['hrn']
 166                 slice_hrn = self.slicename_to_hrn(person['hrn'])
 167
 168                 # xxx suspicious again
 169                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 170                 person_urn = hrn_to_urn(person_hrn, 'user')
 171
 172                 user_record = self.find_record_by_type_hrn( 'user', person_hrn)
 173                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 174
 175                 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 176                 def init_person_key (person, slab_key):
 177                     pubkey=None
 178                     if  person['pkey']:
 179                         # randomly pick first key in set
 180                         pubkey = slab_key
 181                         try:
 182                             pkey = convert_public_key(pubkey)
 183                         except:
 184                             self.logger.warn('SlabImporter: unable to convert public key for %s' % person_hrn)
 185                             pkey = Keypair(create=True)
 186                     else:
 187                         # the user has no keys. Creating a random keypair for the user's gid
 188                         self.logger.warn("SlabImporter: person %s does not have a PL public key"%person_hrn)
 189                         pkey = Keypair(create=True)
 190                     return (pubkey, pkey)
 191
 192
 193                 try:
 194                     slab_key = person['pkey']
 195                     # new person
 196                     if not user_record:
 197                         (pubkey,pkey) = init_person_key (person, slab_key )
 198                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 199                         if person['email']:
 200                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 201                             person_gid.set_email(person['email'])
 202                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 203                                                     pointer='-1',
 204                                                     authority=get_authority(person_hrn),
 205                                                     email=person['email'])
 206                         else:
 207                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 208                                                     pointer='-1',
 209                                                     authority=get_authority(person_hrn))
 210
 211                         if pubkey:
 212                             user_record.reg_keys=[RegKey (pubkey)]
 213                         else:
 214                             self.logger.warning("No key found for user %s"%user_record)
 215                         user_record.just_created()
 216                         dbsession.add (user_record)
 217                         dbsession.commit()
 218                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 219                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 220                         self.update_just_added_records_dict( user_record )
 221                     else:
 222                         # update the record ?
 223                         # if user's primary key has changed then we need to update the
 224                         # users gid by forcing an update here
 225                         sfa_keys = user_record.reg_keys
 226
 227                         new_key=False
 228                         if slab_key is not sfa_keys :
 229                             new_key = True
 230                         if new_key:
 231                             (pubkey,pkey) = init_person_key (person, slab_key)
 232                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 233                             if not pubkey:
 234                                 user_record.reg_keys=[]
 235                             else:
 236                                 user_record.reg_keys=[ RegKey (pubkey)]
 237                             self.logger.info("SlabImporter: updated person: %s" % user_record)
 238                     if person['email']:
 239                         user_record.email = person['email']
 240                     dbsession.commit()
 241                     user_record.stale=False
 242                 except:
 243                     self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 244
 245                 try:
 246                     slice = slices_by_userid[user_record.record_id]
 247                 except:
 248                     self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record.record_id )
 249                 if not slice_record:
 250
 251                     try:
 252                         pkey = Keypair(create=True)
 253                         urn = hrn_to_urn(slice_hrn, 'slice')
 254                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 255                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 256                                                     pointer='-1',
 257                                                     authority=get_authority(slice_hrn))
 258
 259                         slice_record.just_created()
 260                         dbsession.add(slice_record)
 261                         dbsession.commit()
 262
 263                         #Serial id created after commit
 264                         #Get it
 265                         sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 266
 267                         slab_slice = SliceSenslab( slice_hrn = slice_hrn,  record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 268                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 269                         slab_dbsession.add(slab_slice)
 270                         slab_dbsession.commit()
 271                         self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 272                         self.update_just_added_records_dict ( slice_record )
 273                     except:
 274                         self.logger.log_exc("SlabImporter: failed to import slice")
 275
 276                 #No slice update upon import in senslab
 277                 else:
 278                     # xxx update the record ...
 279                     self.logger.warning ("Slice update not yet implemented")
 280                     pass
 281                 # record current users affiliated with the slice
 282
 283                 slice_record.reg_researchers =  [user_record]
 284                 dbsession.commit()
 285                 slice_record.stale=False
 286
 287
 288
 289          ### remove stale records
 290         # special records must be preserved
 291         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 292         for record in all_records:
 293             if record.hrn in system_hrns:
 294                 record.stale=False
 295             if record.peer_authority:
 296                 record.stale=False
 297
 298
 299         for record in all_records:
 300             try:
 301                 stale=record.stale
 302             except:
 303                 stale=True
 304                 self.logger.warning("stale not found with %s"%record)
 305             if stale:
 306                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 307                 dbsession.delete(record)
 308                 dbsession.commit()
 309
 310
 311