+#
+# PlanetLab importer
+#
+# requirements
+#
+# read the planetlab database and update the local registry database accordingly
+# (in other words, with this testbed, the SFA registry is *not* authoritative)
+# so we update the following collections
+# . authorities (from pl sites)
+# . node (from pl nodes)
+# . users+keys (from pl persons and attached keys)
+# known limitation : *one* of the ssh keys is chosen at random here
+# xxx todo/check xxx at the very least, when a key is known to the registry
+# and is still current in plc
+# then we should definitely make sure to keep that one in sfa...
+# . slice+researchers (from pl slices and attached users)
+#
+
import os
from sfa.util.config import Config
# we don't have any options for now
pass
+ # hrn hash is initialized from current db
+ # remember just-created records as we go
+ # xxx might make sense to add a UNIQUE constraint in the db itself
+ def remember_record_by_hrn (self, record):
+ tuple = (record.type, record.hrn)
+ if tuple in self.records_by_type_hrn:
+ self.logger.warning ("PlImporter.remember_record_by_hrn: duplicate (%s,%s)"%tuple)
+ return
+ self.records_by_type_hrn [ tuple ] = record
+
+ # ditto for pointer hash
+ def remember_record_by_pointer (self, record):
+ if record.pointer == -1:
+ self.logger.warning ("PlImporter.remember_record_by_pointer: pointer is void")
+ return
+ tuple = (record.type, record.pointer)
+ if tuple in self.records_by_type_pointer:
+ self.logger.warning ("PlImporter.remember_record_by_pointer: duplicate (%s,%s)"%tuple)
+ return
+ self.records_by_type_pointer [ ( record.type, record.pointer,) ] = record
+
+ def remember_record (self, record):
+ self.remember_record_by_hrn (record)
+ self.remember_record_by_pointer (record)
+
+ def locate_by_type_hrn (self, type, hrn):
+ return self.records_by_type_hrn.get ( (type, hrn), None)
+
+ def locate_by_type_pointer (self, type, pointer):
+ return self.records_by_type_pointer.get ( (type, pointer), None)
+
+ # convenience : try to locate first based on type+pointer
+ # if so, the record was created already even if e.g. its hrn has changed meanwhile
+ # otherwise we try by type+hrn (is this truly useful ?)
+ def locate (self, type, hrn=None, pointer=-1):
+ if pointer!=-1:
+ attempt = self.locate_by_type_pointer (type, pointer)
+ if attempt : return attempt
+ if hrn is not None:
+ attempt = self.locate_by_type_hrn (type, hrn,)
+ if attempt : return attempt
+ return None
+
# this makes the run method a bit abtruse - out of the way
def create_special_vini_record (self, interface_hrn):
# special case for vini
dbsession.add(auth_record)
dbsession.commit()
self.logger.info("PlImporter: Imported authority (vini site) %s"%auth_record)
-
- def locate_by_type_hrn (self, type, hrn):
- return self.records_by_type_hrn.get ( (type, hrn), None)
+ self.remember_record ( site_record )
def run (self, options):
config = Config ()
######## retrieve all existing SFA objects
all_records = dbsession.query(RegRecord).all()
- # create indexes / hashes by (type,hrn)
- self.records_by_type_hrn = dict ( [ ( (record.type, record.hrn) , record ) for record in all_records ] )
-# and by (type,pointer)
-# the idea was to try and retrieve an sfa record from the pointer data,
-# in case the plc name (e.g. email address) has changed
-# and the new hrn can't be located in the current sfa records
-# however it sounds like it's eventually safer to just create a new sfa record
-# and let the old one get garbage-collected with stale records
-# self.records_by_type_pointer = \
-# dict ( [ ( (record.type, record.pointer) , record ) for record in all_records if record.pointer != -1 ] )
+ # create hash by (type,hrn)
+ # we essentially use this to know if a given record is already known to SFA
+ self.records_by_type_hrn = \
+ dict ( [ ( (record.type, record.hrn) , record ) for record in all_records ] )
+ # create hash by (type,pointer)
+ self.records_by_type_pointer = \
+ dict ( [ ( (record.type, record.pointer) , record ) for record in all_records
+ if record.pointer != -1] )
# initialize record.stale to True by default, then mark stale=False on the ones that are in use
for record in all_records: record.stale=True
sites = shell.GetSites({'peer_id': None, 'enabled' : True},
['site_id','login_base','node_ids','slice_ids','person_ids',])
# create a hash of sites by login_base
- sites_by_login_base = dict ( [ ( site['login_base'], site ) for site in sites ] )
+# sites_by_login_base = dict ( [ ( site['login_base'], site ) for site in sites ] )
# Get all plc users
persons = shell.GetPersons({'peer_id': None, 'enabled': True},
['person_id', 'email', 'key_ids', 'site_ids'])
# create hash by node_id
nodes_by_id = dict ( [ ( node['node_id'], node, ) for node in nodes ] )
# Get all plc slices
- slices = shell.GetSlices( {'peer_id': None}, ['slice_id', 'name'])
+ slices = shell.GetSlices( {'peer_id': None}, ['slice_id', 'name', 'person_ids'])
# create hash by slice_id
slices_by_id = dict ( [ (slice['slice_id'], slice ) for slice in slices ] )
# start importing
for site in sites:
site_hrn = _get_site_hrn(interface_hrn, site)
-
# import if hrn is not in list of existing hrns or if the hrn exists
# but its not a site record
- site_record=self.locate_by_type_hrn ('authority', site_hrn)
+ site_record=self.locate ('authority', site_hrn, site['site_id'])
if not site_record:
try:
urn = hrn_to_urn(site_hrn, 'authority')
dbsession.add(site_record)
dbsession.commit()
self.logger.info("PlImporter: imported authority (site) : %s" % site_record)
+ self.remember_record (site_record)
except:
# if the site import fails then there is no point in trying to import the
# site's child records (node, slices, persons), so skip them.
self.logger.log_exc("PlImporter: failed to import site. Skipping child records")
continue
+ else:
+ # xxx update the record ...
+ pass
site_record.stale=False
# import node records
try:
node = nodes_by_id[node_id]
except:
- self.logger.warning ("PlImporter: cannot locate node_id %s - ignored"%node_id)
+ self.logger.warning ("PlImporter: cannot find node_id %s - ignored"%node_id)
continue
site_auth = get_authority(site_hrn)
site_name = site['login_base']
hrn = hostname_to_hrn(site_auth, site_name, node['hostname'])
# xxx this sounds suspicious
if len(hrn) > 64: hrn = hrn[:64]
- node_record = self.locate_by_type_hrn ( 'node', hrn )
+ node_record = self.locate ( 'node', hrn , node['node_id'] )
if not node_record:
try:
pkey = Keypair(create=True)
dbsession.add(node_record)
dbsession.commit()
self.logger.info("PlImporter: imported node: %s" % node_record)
+ self.remember_record (node_record)
except:
self.logger.log_exc("PlImporter: failed to import node")
+ else:
+ # xxx update the record ...
+ pass
node_record.stale=False
+ # import persons
+ for person_id in site['person_ids']:
+ try:
+ person = persons_by_id[person_id]
+ except:
+ self.logger.warning ("PlImporter: cannot locate person_id %s - ignored"%person_id)
+ person_hrn = email_to_hrn(site_hrn, person['email'])
+ # xxx suspicious again
+ if len(person_hrn) > 64: person_hrn = person_hrn[:64]
+ person_urn = hrn_to_urn(person_hrn, 'user')
+
+ user_person = self.locate ( 'user', person_hrn, person['person_id'])
+
+ # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
+ def init_person_key (person, plc_keys):
+ pubkey=None
+ if person['key_ids']:
+ # randomly pick first key in set
+ pubkey = plc_keys[0]
+ try:
+ pkey = convert_public_key(pubkey['key'])
+ except:
+ self.logger.warn('PlImporter: unable to convert public key for %s' % person_hrn)
+ pkey = Keypair(create=True)
+ else:
+ # the user has no keys. Creating a random keypair for the user's gid
+ self.logger.warn("PlImporter: person %s does not have a PL public key"%person_hrn)
+ pkey = Keypair(create=True)
+ return (pubkey, pkey)
+
+ # new person
+ try:
+ plc_keys = keys_by_person_id.get(person['person_id'],[])
+ if not user_person:
+ (pubkey,pkey) = init_person_key (person, plc_keys )
+ person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
+ user_person = RegUser (hrn=person_hrn, gid=person_gid,
+ pointer=person['person_id'],
+ authority=get_authority(person_hrn),
+ email=person['email'])
+ if pubkey:
+ user_person.reg_keys=[RegKey (pubkey['key'], pubkey['key_id'])]
+ else:
+ self.logger.warning("No key found for user %s"%user_person)
+ dbsession.add (user_person)
+ dbsession.commit()
+ self.logger.info("PlImporter: imported person: %s" % user_person)
+ self.remember_record ( user_person )
+ else:
+ # update the record ?
+ # if user's primary key has changed then we need to update the
+ # users gid by forcing an update here
+ sfa_keys = user_person.reg_keys
+ def key_in_list (key,sfa_keys):
+ for reg_key in sfa_keys:
+ if reg_key.key==key['key']: return True
+ return False
+ # is there a new key in myplc ?
+ new_keys=False
+ for key in plc_keys:
+ if not key_in_list (key,sfa_keys):
+ new_keys = True
+ if new_keys:
+ (pubkey,pkey) = init_person_key (person, plc_keys)
+ person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
+ if not pubkey:
+ user_person.reg_keys=[]
+ else:
+ user_person.reg_keys=[ RegKey (pubkey['key'], pubkey['key_id'])]
+ self.logger.info("PlImporter: updated person: %s" % user_person)
+ user_person.email = person['email']
+ dbsession.commit()
+ user_person.stale=False
+ except:
+ self.logger.log_exc("PlImporter: failed to import person %d %s"%(person['person_id'],person['email']))
+
# import slices
for slice_id in site['slice_ids']:
try:
except:
self.logger.warning ("PlImporter: cannot locate slice_id %s - ignored"%slice_id)
slice_hrn = slicename_to_hrn(interface_hrn, slice['name'])
- slice_record = self.locate_by_type_hrn ('slice', slice_hrn)
+ slice_record = self.locate ('slice', slice_hrn, slice['slice_id'])
if not slice_record:
try:
pkey = Keypair(create=True)
dbsession.add(slice_record)
dbsession.commit()
self.logger.info("PlImporter: imported slice: %s" % slice_record)
+ self.remember_record ( slice_record )
except:
self.logger.log_exc("PlImporter: failed to import slice")
+ else:
+ # xxx update the record ...
+ self.logger.warning ("Slice update not yet implemented")
+ pass
+ # record current users affiliated with the slice
+ slice_record.reg_researchers = \
+ [ self.locate_by_type_pointer ('user',user_id) for user_id in slice['person_ids'] ]
+ dbsession.commit()
slice_record.stale=False
- # import persons
- for person_id in site['person_ids']:
- try:
- person = persons_by_id[person_id]
- except:
- self.logger.warning ("PlImporter: cannot locate person_id %s - ignored"%person_id)
- person_hrn = email_to_hrn(site_hrn, person['email'])
- # xxx suspicious again
- if len(person_hrn) > 64: person_hrn = person_hrn[:64]
-
- person_record = self.locate_by_type_hrn( 'user', person_hrn)
-# see above
-# if not person_record:
-# person_record = self.records_by_type_pointer.get ( ('user', person_id,) )
- # if user's primary key has changed then we need to update the
- # users gid by forcing an update here
- plc_keys = []
- sfa_keys = []
- if person_record:
- sfa_keys = person_record.reg_keys
- if person_id in keys_by_person_id:
- plc_keys = keys_by_person_id[person_id]
- update_record = False
- def key_in_list (key,sfa_keys):
- for reg_key in sfa_keys:
- if reg_key.key==key['key']: return True
- return False
- for key in plc_keys:
- if not key_in_list (key,sfa_keys):
- update_record = True
-
- if not person_record or update_record:
- try:
- pubkey=None
- if 'key_ids' in person and person['key_ids']:
- # randomly pick first key in set
- pubkey = plc_keys[0]
- try:
- pkey = convert_public_key(pubkey['key'])
- except:
- self.logger.warn('PlImporter: unable to convert public key for %s' % person_hrn)
- pkey = Keypair(create=True)
- else:
- # the user has no keys. Creating a random keypair for the user's gid
- self.logger.warn("PlImporter: person %s does not have a PL public key"%person_hrn)
- pkey = Keypair(create=True)
- urn = hrn_to_urn(person_hrn, 'user')
- person_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
- if person_record:
- person_record.gid=person_gid
- if pubkey: person_record.reg_keys=[ RegKey (pubkey['key'], pubkey['key_id'])]
- self.logger.info("PlImporter: updated person: %s" % person_record)
- else:
- person_record = RegUser (hrn=person_hrn, gid=person_gid,
- pointer=person['person_id'],
- authority=get_authority(person_hrn),
- email=person['email'])
- if pubkey:
- person_record.reg_keys=[RegKey (pubkey['key'], pubkey['key_id'])]
- else:
- self.logger.warning("No key found for user %s"%person_record)
- dbsession.add (person_record)
- dbsession.commit()
- self.logger.info("PlImporter: imported person: %s" % person_record)
- except:
- self.logger.log_exc("PlImporter: failed to import person %s"%person_id)
- person_record.stale=False
-
### remove stale records
# special records must be preserved
system_hrns = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
git://git.onelab.eu / sfa.git / commitdiff