sfa/importer/slabimporter.py

   1 import sys
   2
   3 from sfa.util.config import Config
   4 from sfa.util.xrn import Xrn, get_authority, hrn_to_urn
   5
   6 from sfa.senslab.slabdriver import SlabDriver
   7 from sfa.senslab.slabpostgres import SenslabXP, slab_dbsession
   8
   9 from sfa.trust.certificate import Keypair,convert_public_key
  10 from sfa.trust.gid import create_uuid
  11
  12 from sfa.storage.alchemy import dbsession
  13 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, \
  14                                                     RegUser, RegKey
  15 from sfa.util.sfalogging import logger
  16
  17 from sqlalchemy.exc import SQLAlchemyError
  18
  19
  20 def _get_site_hrn(site):
  21     hrn = site['name']
  22     return hrn
  23
  24 class SlabImporter:
  25
  26     def __init__ (self, auth_hierarchy, loc_logger):
  27         self.auth_hierarchy = auth_hierarchy
  28         self.logger = loc_logger
  29         self.logger.setLevelDebug()
  30
  31     def hostname_to_hrn_escaped(self, root_auth, hostname):
  32         return '.'.join( [root_auth,Xrn.escape(hostname)] )
  33
  34
  35
  36     def slicename_to_hrn(self, person_hrn):
  37         return  (person_hrn +'_slice')
  38
  39     def add_options (self, parser):
  40         # we don't have any options for now
  41         pass
  42
  43     def find_record_by_type_hrn(self,type,hrn):
  44         return self.records_by_type_hrn.get ( (type, hrn), None)
  45
  46     def locate_by_type_pointer (self, type, pointer):
  47         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  48         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  49         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  "
  50         return ret
  51
  52     def update_just_added_records_dict (self, record):
  53         tuple = (record.type, record.hrn)
  54         if tuple in self.records_by_type_hrn:
  55             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  56             return
  57         self.records_by_type_hrn [ tuple ] = record
  58
  59     def run (self, options):
  60         config = Config()
  61
  62         slabdriver = SlabDriver(config)
  63
  64         #Create special slice table for senslab
  65
  66         if not slabdriver.db.exists('slab_xp'):
  67             slabdriver.db.createtable()
  68             self.logger.info ("SlabImporter.run:  slab_xp table created ")
  69
  70         #retrieve all existing SFA objects
  71         all_records = dbsession.query(RegRecord).all()
  72
  73         #create hash by (type,hrn)
  74         #used  to know if a given record is already known to SFA
  75
  76         self.records_by_type_hrn = \
  77             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  78
  79         # create hash by (type,pointer)
  80         self.records_by_type_pointer = \
  81             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  82
  83         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  84         for record in all_records:
  85             record.stale=True
  86
  87         nodes_listdict  = slabdriver.GetNodes()
  88         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  89         sites_listdict  = slabdriver.GetSites()
  90
  91         ldap_person_listdict = slabdriver.GetPersons()
  92         print>>sys.stderr,"\r\n SLABIMPORT \t ldap_person_listdict %s \r\n" %(ldap_person_listdict)
  93         slices_listdict = slabdriver.GetSlices()
  94         try:
  95             slices_by_userid = dict ( [ (one_slice['record_id_user'], one_slice ) for one_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 SQLAlchemyError:
 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                 escaped_hrn =  self.hostname_to_hrn_escaped(slabdriver.root_auth, node['hostname'])
 137                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 138                 hrn =  node['hrn']
 139
 140
 141                 # xxx this sounds suspicious
 142                 if len(hrn) > 64: hrn = hrn[:64]
 143                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 144                 if not node_record:
 145                     try:
 146                         pkey = Keypair(create=True)
 147                         urn = hrn_to_urn(escaped_hrn, 'node')
 148                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 149                         def slab_get_authority(hrn):
 150                             return hrn.split(".")[0]
 151
 152                         node_record = RegNode (hrn=hrn, gid=node_gid,
 153                                                 pointer = '-1',
 154                                                 authority=slab_get_authority(hrn))
 155                         node_record.just_created()
 156                         dbsession.add(node_record)
 157                         dbsession.commit()
 158                         #self.logger.info("SlabImporter: imported node: %s" % node_record)
 159                         self.update_just_added_records_dict(node_record)
 160                     except:
 161                         self.logger.log_exc("SlabImporter: failed to import node")
 162                 else:
 163                     # xxx update the record ...
 164                     pass
 165                 node_record.stale=False
 166
 167
 168         # import persons
 169         for person in ldap_person_listdict :
 170             print>>sys.stderr,"SlabImporter: person: %s" %(person['hrn'])
 171             if 'ssh-rsa' not in person['pkey']:
 172                 #people with invalid ssh key (ssh-dss, empty, bullshit keys...)
 173                 #won't be imported
 174                 continue
 175             person_hrn = person['hrn']
 176             slice_hrn = self.slicename_to_hrn(person['hrn'])
 177
 178             # xxx suspicious again
 179             if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 180             person_urn = hrn_to_urn(person_hrn, 'user')
 181
 182             user_record = self.find_record_by_type_hrn('user', person_hrn)
 183             slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 184
 185             # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 186             def init_person_key (person, slab_key):
 187                 pubkey = None
 188                 if  person['pkey']:
 189                     # randomly pick first key in set
 190                     pubkey = slab_key
 191
 192                     try:
 193                         pkey = convert_public_key(pubkey)
 194                     except TypeError:
 195                         #key not good. create another pkey
 196                         self.logger.warn('SlabImporter: \
 197                                             unable to convert public \
 198                                             key for %s' % person_hrn)
 199                         pkey = Keypair(create=True)
 200
 201                 else:
 202                     # the user has no keys. Creating a random keypair for the user's gid
 203                     self.logger.warn("SlabImporter: person %s does not have a  public key"%person_hrn)
 204                     pkey = Keypair(create=True)
 205                 return (pubkey, pkey)
 206
 207
 208             try:
 209                 slab_key = person['pkey']
 210                 # new person
 211                 if not user_record:
 212                     (pubkey,pkey) = init_person_key (person, slab_key )
 213                     if pubkey is not None and pkey is not None :
 214                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 215                         if person['email']:
 216                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 217                             person_gid.set_email(person['email'])
 218                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 219                                                     pointer='-1',
 220                                                     authority=get_authority(person_hrn),
 221                                                     email=person['email'])
 222                         else:
 223                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 224                                                     pointer='-1',
 225                                                     authority=get_authority(person_hrn))
 226
 227                         if pubkey:
 228                             user_record.reg_keys = [RegKey (pubkey)]
 229                         else:
 230                             self.logger.warning("No key found for user %s"%user_record)
 231                         user_record.just_created()
 232                         dbsession.add (user_record)
 233                         dbsession.commit()
 234                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 235                         self.update_just_added_records_dict( user_record )
 236                 else:
 237                     # update the record ?
 238                     # if user's primary key has changed then we need to update the
 239                     # users gid by forcing an update here
 240                     sfa_keys = user_record.reg_keys
 241
 242                     new_key=False
 243                     if slab_key is not sfa_keys :
 244                         new_key = True
 245                     if new_key:
 246                         print>>sys.stderr,"SlabImporter: \t \t USER UPDATE person: %s" %(person['hrn'])
 247                         (pubkey,pkey) = init_person_key (person, slab_key)
 248                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 249                         if not pubkey:
 250                             user_record.reg_keys=[]
 251                         else:
 252                             user_record.reg_keys=[ RegKey (pubkey)]
 253                         self.logger.info("SlabImporter: updated person: %s" % user_record)
 254
 255                     if person['email']:
 256                         user_record.email = person['email']
 257
 258                 dbsession.commit()
 259
 260                 user_record.stale = False
 261             except:
 262                 self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 263
 264             try:
 265                 slice = slices_by_userid[user_record.record_id]
 266             except:
 267                 self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record)
 268
 269             if not slice_record :
 270                 try:
 271                     pkey = Keypair(create=True)
 272                     urn = hrn_to_urn(slice_hrn, 'slice')
 273                     slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 274                     slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 275                                                 pointer='-1',
 276                                                 authority=get_authority(slice_hrn))
 277
 278                     slice_record.just_created()
 279                     dbsession.add(slice_record)
 280                     dbsession.commit()
 281
 282                     #Serial id created after commit
 283                     #Get it
 284                     sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 285
 286                     #slab_slice = SenslabXP( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 287                     #print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 288                     #slab_dbsession.add(slab_slice)
 289                     #slab_dbsession.commit()
 290                     #self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 291                     self.update_just_added_records_dict ( slice_record )
 292
 293                 except:
 294                     self.logger.log_exc("SlabImporter: failed to import slice")
 295
 296             #No slice update upon import in senslab
 297             else:
 298                 # xxx update the record ...
 299                 self.logger.warning ("Slice update not yet implemented")
 300                 pass
 301             # record current users affiliated with the slice
 302
 303
 304             slice_record.reg_researchers =  [user_record]
 305             dbsession.commit()
 306             slice_record.stale=False
 307
 308
 309
 310          ### remove stale records
 311         # special records must be preserved
 312         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 313         for record in all_records:
 314             if record.hrn in system_hrns:
 315                 record.stale=False
 316             if record.peer_authority:
 317                 record.stale=False
 318
 319
 320         for record in all_records:
 321             if record.type == 'user':
 322                 print>>sys.stderr,"SlabImporter: stale records: hrn %s %s" %(record.hrn,record.stale)
 323             try:
 324                 stale=record.stale
 325             except:
 326                 stale=True
 327                 self.logger.warning("stale not found with %s"%record)
 328             if stale:
 329                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 330                 #if record.type == 'user':
 331                     #rec = slab_dbsession.query(SenslabXP).filter_by(record_id_user = record.record_id).first()
 332                     #slab_dbsession.delete(rec)
 333                     #slab_dbsession.commit()
 334                 dbsession.delete(record)
 335                 dbsession.commit()
 336
 337
 338