6 # read the planetlab database and update the local registry database accordingly
7 # (in other words, with this testbed, the SFA registry is *not* authoritative)
8 # so we update the following collections
9 # . authorities (from pl sites)
10 # . node (from pl nodes)
11 # . users+keys (from pl persons and attached keys)
12 # known limitation : *one* of the ssh keys is chosen at random here
13 # xxx todo/check xxx at the very least, when a key is known to the registry
14 # and is still current in plc
15 # then we should definitely make sure to keep that one in sfa...
16 # . slice+researchers (from pl slices and attached users)
21 from sfa.util.config import Config
22 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
23 from sfa.util.plxrn import hostname_to_hrn, slicename_to_hrn, email_to_hrn, hrn_to_pl_slicename
25 from sfa.trust.gid import create_uuid
26 from sfa.trust.certificate import convert_public_key, Keypair
28 from sfa.storage.alchemy import dbsession
29 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
31 from sfa.plc.plshell import PlShell
33 def _get_site_hrn(interface_hrn, site):
34 # Hardcode 'internet2' into the hrn for sites hosting
35 # internet2 nodes. This is a special operation for some vini
37 hrn = ".".join([interface_hrn, site['login_base']])
38 if ".vini" in interface_hrn and interface_hrn.endswith('vini'):
39 if site['login_base'].startswith("i2") or site['login_base'].startswith("nlr"):
40 hrn = ".".join([interface_hrn, "internet2", site['login_base']])
46 def __init__ (self, auth_hierarchy, logger):
47 self.auth_hierarchy = auth_hierarchy
50 def add_options (self, parser):
51 # we don't have any options for now
54 # hrn hash is initialized from current db
55 # remember just-created records as we go
56 # xxx might make sense to add a UNIQUE constraint in the db itself
57 def remember_record_by_hrn (self, record):
58 tuple = (record.type, record.hrn)
59 if tuple in self.records_by_type_hrn:
60 self.logger.warning ("PlImporter.remember_record_by_hrn: duplicate (%s,%s)"%tuple)
62 self.records_by_type_hrn [ tuple ] = record
64 # ditto for pointer hash
65 def remember_record_by_pointer (self, record):
66 if record.pointer == -1:
67 self.logger.warning ("PlImporter.remember_record_by_pointer: pointer is void")
69 tuple = (record.type, record.pointer)
70 if tuple in self.records_by_type_pointer:
71 self.logger.warning ("PlImporter.remember_record_by_pointer: duplicate (%s,%s)"%tuple)
73 self.records_by_type_pointer [ ( record.type, record.pointer,) ] = record
75 def remember_record (self, record):
76 self.remember_record_by_hrn (record)
77 self.remember_record_by_pointer (record)
79 def locate_by_type_hrn (self, type, hrn):
80 return self.records_by_type_hrn.get ( (type, hrn), None)
82 def locate_by_type_pointer (self, type, pointer):
83 return self.records_by_type_pointer.get ( (type, pointer), None)
85 # convenience : try to locate first based on type+pointer
86 # if so, the record was created already even if e.g. its hrn has changed meanwhile
87 # otherwise we try by type+hrn (is this truly useful ?)
88 def locate (self, type, hrn=None, pointer=-1):
90 attempt = self.locate_by_type_pointer (type, pointer)
91 if attempt : return attempt
93 attempt = self.locate_by_type_hrn (type, hrn,)
94 if attempt : return attempt
97 # this makes the run method a bit abtruse - out of the way
98 def create_special_vini_record (self, interface_hrn):
99 # special case for vini
100 if ".vini" in interface_hrn and interface_hrn.endswith('vini'):
101 # create a fake internet2 site first
102 i2site = {'name': 'Internet2', 'login_base': 'internet2', 'site_id': -1}
103 site_hrn = _get_site_hrn(interface_hrn, i2site)
104 # import if hrn is not in list of existing hrns or if the hrn exists
105 # but its not a site record
106 if ( 'authority', site_hrn, ) not in self.records_by_type_hrn:
107 urn = hrn_to_urn(site_hrn, 'authority')
108 if not self.auth_hierarchy.auth_exists(urn):
109 self.auth_hierarchy.create_auth(urn)
110 auth_info = self.auth_hierarchy.get_auth_info(urn)
111 auth_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
112 pointer=site['site_id'],
113 authority=get_authority(site_hrn))
114 auth_record.just_created()
115 dbsession.add(auth_record)
117 self.logger.info("PlImporter: Imported authority (vini site) %s"%auth_record)
118 self.remember_record ( site_record )
120 def run (self, options):
122 interface_hrn = config.SFA_INTERFACE_HRN
123 root_auth = config.SFA_REGISTRY_ROOT_AUTH
124 shell = PlShell (config)
126 ######## retrieve all existing SFA objects
127 all_records = dbsession.query(RegRecord).all()
129 # create hash by (type,hrn)
130 # we essentially use this to know if a given record is already known to SFA
131 self.records_by_type_hrn = \
132 dict ( [ ( (record.type, record.hrn) , record ) for record in all_records ] )
133 # create hash by (type,pointer)
134 self.records_by_type_pointer = \
135 dict ( [ ( (record.type, record.pointer) , record ) for record in all_records
136 if record.pointer != -1] )
138 # initialize record.stale to True by default, then mark stale=False on the ones that are in use
139 for record in all_records: record.stale=True
141 ######## retrieve PLC data
143 # retrieve only required stuf
144 sites = shell.GetSites({'peer_id': None, 'enabled' : True},
145 ['site_id','login_base','node_ids','slice_ids','person_ids',])
146 # create a hash of sites by login_base
147 # sites_by_login_base = dict ( [ ( site['login_base'], site ) for site in sites ] )
149 persons = shell.GetPersons({'peer_id': None, 'enabled': True},
150 ['person_id', 'email', 'key_ids', 'site_ids'])
151 # create a hash of persons by person_id
152 persons_by_id = dict ( [ ( person['person_id'], person) for person in persons ] )
153 # Get all plc public keys
154 # accumulate key ids for keys retrieval
156 for person in persons:
157 key_ids.extend(person['key_ids'])
158 keys = shell.GetKeys( {'peer_id': None, 'key_id': key_ids} )
159 # create a hash of keys by key_id
160 keys_by_id = dict ( [ ( key['key_id'], key ) for key in keys ] )
161 # create a dict person_id -> [ (plc)keys ]
162 keys_by_person_id = {}
163 for person in persons:
165 for key_id in person['key_ids']:
166 pubkeys.append(keys_by_id[key_id])
167 keys_by_person_id[person['person_id']] = pubkeys
169 nodes = shell.GetNodes( {'peer_id': None}, ['node_id', 'hostname', 'site_id'])
170 # create hash by node_id
171 nodes_by_id = dict ( [ ( node['node_id'], node, ) for node in nodes ] )
173 slices = shell.GetSlices( {'peer_id': None}, ['slice_id', 'name', 'person_ids'])
174 # create hash by slice_id
175 slices_by_id = dict ( [ (slice['slice_id'], slice ) for slice in slices ] )
177 # isolate special vini case in separate method
178 self.create_special_vini_record (interface_hrn)
182 site_hrn = _get_site_hrn(interface_hrn, site)
183 # import if hrn is not in list of existing hrns or if the hrn exists
184 # but its not a site record
185 site_record=self.locate ('authority', site_hrn, site['site_id'])
188 urn = hrn_to_urn(site_hrn, 'authority')
189 if not self.auth_hierarchy.auth_exists(urn):
190 self.auth_hierarchy.create_auth(urn)
191 auth_info = self.auth_hierarchy.get_auth_info(urn)
192 site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
193 pointer=site['site_id'],
194 authority=get_authority(site_hrn))
195 site_record.just_created()
196 dbsession.add(site_record)
198 self.logger.info("PlImporter: imported authority (site) : %s" % site_record)
199 self.remember_record (site_record)
201 # if the site import fails then there is no point in trying to import the
202 # site's child records (node, slices, persons), so skip them.
203 self.logger.log_exc("PlImporter: failed to import site. Skipping child records")
206 # xxx update the record ...
208 site_record.stale=False
210 # import node records
211 for node_id in site['node_ids']:
213 node = nodes_by_id[node_id]
215 self.logger.warning ("PlImporter: cannot find node_id %s - ignored"%node_id)
217 site_auth = get_authority(site_hrn)
218 site_name = site['login_base']
219 hrn = hostname_to_hrn(site_auth, site_name, node['hostname'])
220 # xxx this sounds suspicious
221 if len(hrn) > 64: hrn = hrn[:64]
222 node_record = self.locate ( 'node', hrn , node['node_id'] )
225 pkey = Keypair(create=True)
226 urn = hrn_to_urn(hrn, 'node')
227 node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
228 node_record = RegNode (hrn=hrn, gid=node_gid,
229 pointer =node['node_id'],
230 authority=get_authority(hrn))
231 node_record.just_created()
232 dbsession.add(node_record)
234 self.logger.info("PlImporter: imported node: %s" % node_record)
235 self.remember_record (node_record)
237 self.logger.log_exc("PlImporter: failed to import node")
239 # xxx update the record ...
241 node_record.stale=False
244 for person_id in site['person_ids']:
246 person = persons_by_id[person_id]
248 self.logger.warning ("PlImporter: cannot locate person_id %s - ignored"%person_id)
249 person_hrn = email_to_hrn(site_hrn, person['email'])
250 # xxx suspicious again
251 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
252 person_urn = hrn_to_urn(person_hrn, 'user')
254 user_person = self.locate ( 'user', person_hrn, person['person_id'])
256 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
257 def init_person_key (person, plc_keys):
259 if person['key_ids']:
260 # randomly pick first key in set
263 pkey = convert_public_key(pubkey['key'])
265 self.logger.warn('PlImporter: unable to convert public key for %s' % person_hrn)
266 pkey = Keypair(create=True)
268 # the user has no keys. Creating a random keypair for the user's gid
269 self.logger.warn("PlImporter: person %s does not have a PL public key"%person_hrn)
270 pkey = Keypair(create=True)
271 return (pubkey, pkey)
275 plc_keys = keys_by_person_id.get(person['person_id'],[])
277 (pubkey,pkey) = init_person_key (person, plc_keys )
278 person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
279 user_person = RegUser (hrn=person_hrn, gid=person_gid,
280 pointer=person['person_id'],
281 authority=get_authority(person_hrn),
282 email=person['email'])
284 user_person.reg_keys=[RegKey (pubkey['key'], pubkey['key_id'])]
286 self.logger.warning("No key found for user %s"%user_person)
287 dbsession.add (user_person)
289 self.logger.info("PlImporter: imported person: %s" % user_person)
290 self.remember_record ( user_person )
292 # update the record ?
293 # if user's primary key has changed then we need to update the
294 # users gid by forcing an update here
295 sfa_keys = user_person.reg_keys
296 def key_in_list (key,sfa_keys):
297 for reg_key in sfa_keys:
298 if reg_key.key==key['key']: return True
300 # is there a new key in myplc ?
303 if not key_in_list (key,sfa_keys):
306 (pubkey,pkey) = init_person_key (person, plc_keys)
307 person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
309 user_person.reg_keys=[]
311 user_person.reg_keys=[ RegKey (pubkey['key'], pubkey['key_id'])]
312 self.logger.info("PlImporter: updated person: %s" % user_person)
313 user_person.email = person['email']
315 user_person.stale=False
317 self.logger.log_exc("PlImporter: failed to import person %d %s"%(person['person_id'],person['email']))
320 for slice_id in site['slice_ids']:
322 slice = slices_by_id[slice_id]
324 self.logger.warning ("PlImporter: cannot locate slice_id %s - ignored"%slice_id)
325 slice_hrn = slicename_to_hrn(interface_hrn, slice['name'])
326 slice_record = self.locate ('slice', slice_hrn, slice['slice_id'])
329 pkey = Keypair(create=True)
330 urn = hrn_to_urn(slice_hrn, 'slice')
331 slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
332 slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
333 pointer=slice['slice_id'],
334 authority=get_authority(slice_hrn))
335 slice_record.just_created()
336 dbsession.add(slice_record)
338 self.logger.info("PlImporter: imported slice: %s" % slice_record)
339 self.remember_record ( slice_record )
341 self.logger.log_exc("PlImporter: failed to import slice")
343 # xxx update the record ...
344 self.logger.warning ("Slice update not yet implemented")
346 # record current users affiliated with the slice
347 slice_record.reg_researchers = \
348 [ self.locate_by_type_pointer ('user',user_id) for user_id in slice['person_ids'] ]
350 slice_record.stale=False
352 ### remove stale records
353 # special records must be preserved
354 system_hrns = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
355 for record in all_records:
356 if record.hrn in system_hrns:
358 if record.peer_authority:
360 if ".vini" in interface_hrn and interface_hrn.endswith('vini') and \
361 record.hrn.endswith("internet2"):
364 for record in all_records:
365 try: stale=record.stale
368 self.logger.warning("stale not found with %s"%record)
370 self.logger.info("PlImporter: deleting stale record: %s" % record)
371 dbsession.delete(record)