6 # read the planetlab database and update the local registry database accordingly
7 # so we update the following collections
8 # . authorities (from pl sites)
9 # . node (from pl nodes)
10 # . users+keys (from pl persons and attached keys)
11 # known limitation : *one* of the ssh keys is chosen at random here
12 # xxx todo/check xxx at the very least, when a key is known to the registry
13 # and is still current in plc
14 # then we should definitely make sure to keep that one in sfa...
15 # . slice+researchers (from pl slices and attached users)
20 from sfa.util.config import Config
21 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
23 from sfa.trust.gid import create_uuid
24 from sfa.trust.certificate import convert_public_key, Keypair
26 from sfa.storage.alchemy import dbsession
27 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
29 from sfa.dummy.dummyshell import DummyShell
30 from sfa.dummy.dummyxrn import hostname_to_hrn, slicename_to_hrn, email_to_hrn, hrn_to_dummy_slicename
32 def _get_site_hrn(interface_hrn, site):
33 hrn = ".".join([interface_hrn, site['name']])
39 def __init__ (self, auth_hierarchy, logger):
40 self.auth_hierarchy = auth_hierarchy
43 def add_options (self, parser):
44 # we don't have any options for now
47 # hrn hash is initialized from current db
48 # remember just-created records as we go
49 # xxx might make sense to add a UNIQUE constraint in the db itself
50 def remember_record_by_hrn (self, record):
51 tuple = (record.type, record.hrn)
52 if tuple in self.records_by_type_hrn:
53 self.logger.warning ("DummyImporter.remember_record_by_hrn: duplicate (%s,%s)"%tuple)
55 self.records_by_type_hrn [ tuple ] = record
57 # ditto for pointer hash
58 def remember_record_by_pointer (self, record):
59 if record.pointer == -1:
60 self.logger.warning ("DummyImporter.remember_record_by_pointer: pointer is void")
62 tuple = (record.type, record.pointer)
63 if tuple in self.records_by_type_pointer:
64 self.logger.warning ("DummyImporter.remember_record_by_pointer: duplicate (%s,%s)"%tuple)
66 self.records_by_type_pointer [ ( record.type, record.pointer,) ] = record
68 def remember_record (self, record):
69 self.remember_record_by_hrn (record)
70 self.remember_record_by_pointer (record)
72 def locate_by_type_hrn (self, type, hrn):
73 return self.records_by_type_hrn.get ( (type, hrn), None)
75 def locate_by_type_pointer (self, type, pointer):
76 return self.records_by_type_pointer.get ( (type, pointer), None)
78 # a convenience/helper function to see if a record is already known
79 # a former, broken, attempt (in 2.1-9) had been made
80 # to try and use 'pointer' as a first, most significant attempt
81 # the idea being to preserve stuff as much as possible, and thus
82 # to avoid creating a new gid in the case of a simple hrn rename
83 # however this of course doesn't work as the gid depends on the hrn...
84 #def locate (self, type, hrn=None, pointer=-1):
86 # attempt = self.locate_by_type_pointer (type, pointer)
87 # if attempt : return attempt
89 # attempt = self.locate_by_type_hrn (type, hrn,)
90 # if attempt : return attempt
93 # this makes the run method a bit abtruse - out of the way
95 def run (self, options):
97 interface_hrn = config.SFA_INTERFACE_HRN
98 root_auth = config.SFA_REGISTRY_ROOT_AUTH
99 shell = DummyShell (config)
101 ######## retrieve all existing SFA objects
102 all_records = dbsession.query(RegRecord).all()
104 # create hash by (type,hrn)
105 # we essentially use this to know if a given record is already known to SFA
106 self.records_by_type_hrn = \
107 dict ( [ ( (record.type, record.hrn) , record ) for record in all_records ] )
108 # create hash by (type,pointer)
109 self.records_by_type_pointer = \
110 dict ( [ ( (record.type, record.pointer) , record ) for record in all_records
111 if record.pointer != -1] )
113 # initialize record.stale to True by default, then mark stale=False on the ones that are in use
114 for record in all_records: record.stale=True
116 ######## retrieve Dummy TB data
118 # retrieve only required stuf
119 sites = [shell.GetTestbedInfo()]
120 # create a hash of sites by login_base
121 # sites_by_login_base = dict ( [ ( site['login_base'], site ) for site in sites ] )
122 # Get all dummy TB users
123 users = shell.GetUsers()
124 # create a hash of users by user_id
125 users_by_id = dict ( [ ( user['user_id'], user) for user in users ] )
126 # Get all dummy TB public keys
130 keys.extend(user['keys'])
131 # create a dict user_id -> [ keys ]
132 keys_by_person_id = {}
135 keys_by_person_id[user['user_id']] = user['keys']
136 # Get all dummy TB nodes
137 nodes = shell.GetNodes()
138 # create hash by node_id
139 nodes_by_id = dict ( [ ( node['node_id'], node, ) for node in nodes ] )
140 # Get all dummy TB slices
141 slices = shell.GetSlices()
142 # create hash by slice_id
143 slices_by_id = dict ( [ (slice['slice_id'], slice ) for slice in slices ] )
148 site_hrn = _get_site_hrn(interface_hrn, site)
149 # import if hrn is not in list of existing hrns or if the hrn exists
150 # but its not a site record
151 site_record=self.locate_by_type_hrn ('authority', site_hrn)
154 urn = hrn_to_urn(site_hrn, 'authority')
155 if not self.auth_hierarchy.auth_exists(urn):
156 self.auth_hierarchy.create_auth(urn)
157 auth_info = self.auth_hierarchy.get_auth_info(urn)
158 site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
160 authority=get_authority(site_hrn))
161 site_record.just_created()
162 dbsession.add(site_record)
164 self.logger.info("DummyImporter: imported authority (site) : %s" % site_record)
165 self.remember_record (site_record)
167 # if the site import fails then there is no point in trying to import the
168 # site's child records (node, slices, persons), so skip them.
169 self.logger.log_exc("DummyImporter: failed to import site. Skipping child records")
172 # xxx update the record ...
174 site_record.stale=False
176 # import node records
178 site_auth = get_authority(site_hrn)
179 site_name = site['name']
180 node_hrn = hostname_to_hrn(site_auth, site_name, node['hostname'])
181 # xxx this sounds suspicious
182 if len(node_hrn) > 64: node_hrn = node_hrn[:64]
183 node_record = self.locate_by_type_hrn ( 'node', node_hrn )
186 pkey = Keypair(create=True)
187 urn = hrn_to_urn(node_hrn, 'node')
188 node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
189 node_record = RegNode (hrn=node_hrn, gid=node_gid,
190 pointer =node['node_id'],
191 authority=get_authority(node_hrn))
192 node_record.just_created()
193 dbsession.add(node_record)
195 self.logger.info("DummyImporter: imported node: %s" % node_record)
196 self.remember_record (node_record)
198 self.logger.log_exc("DummyImporter: failed to import node")
200 # xxx update the record ...
202 node_record.stale=False
207 user_hrn = email_to_hrn(site_hrn, user['email'])
208 # xxx suspicious again
209 if len(user_hrn) > 64: user_hrn = user_hrn[:64]
210 user_urn = hrn_to_urn(user_hrn, 'user')
212 user_record = self.locate_by_type_hrn ( 'user', user_hrn)
214 # return a tuple pubkey (a dummy TB key object) and pkey (a Keypair object)
216 def init_user_key (user):
220 # randomly pick first key in set
221 for key in user['keys']:
224 pkey = convert_public_key(pubkey)
229 self.logger.warn('DummyImporter: unable to convert public key for %s' % user_hrn)
230 pkey = Keypair(create=True)
232 # the user has no keys. Creating a random keypair for the user's gid
233 self.logger.warn("DummyImporter: user %s does not have a NITOS public key"%user_hrn)
234 pkey = Keypair(create=True)
235 return (pubkey, pkey)
240 (pubkey,pkey) = init_user_key (user)
241 user_gid = self.auth_hierarchy.create_gid(user_urn, create_uuid(), pkey)
242 user_gid.set_email(user['email'])
243 user_record = RegUser (hrn=user_hrn, gid=user_gid,
244 pointer=user['user_id'],
245 authority=get_authority(user_hrn),
248 user_record.reg_keys=[RegKey (pubkey)]
250 self.logger.warning("No key found for user %s"%user_record)
251 user_record.just_created()
252 dbsession.add (user_record)
254 self.logger.info("DummyImporter: imported person: %s" % user_record)
255 self.remember_record ( user_record )
258 # update the record ?
259 # if user's primary key has changed then we need to update the
260 # users gid by forcing an update here
261 sfa_keys = user_record.reg_keys
262 def key_in_list (key,sfa_keys):
263 for reg_key in sfa_keys:
264 if reg_key.key==key: return True
266 # is there a new key in Dummy TB ?
268 for key in user['keys']:
269 if not key_in_list (key,sfa_keys):
272 (pubkey,pkey) = init_user_key (user)
273 user_gid = self.auth_hierarchy.create_gid(user_urn, create_uuid(), pkey)
275 user_record.reg_keys=[]
277 user_record.reg_keys=[ RegKey (pubkey)]
278 self.logger.info("DummyImporter: updated person: %s" % user_record)
279 user_record.email = user['email']
281 user_record.stale=False
283 self.logger.log_exc("DummyImporter: failed to import user %d %s"%(user['user_id'],user['email']))
288 slice_hrn = slicename_to_hrn(site_hrn, slice['slice_name'])
289 slice_record = self.locate_by_type_hrn ('slice', slice_hrn)
292 pkey = Keypair(create=True)
293 urn = hrn_to_urn(slice_hrn, 'slice')
294 slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
295 slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
296 pointer=slice['slice_id'],
297 authority=get_authority(slice_hrn))
298 slice_record.just_created()
299 dbsession.add(slice_record)
301 self.logger.info("DummyImporter: imported slice: %s" % slice_record)
302 self.remember_record ( slice_record )
304 self.logger.log_exc("DummyImporter: failed to import slice")
306 # xxx update the record ...
307 self.logger.warning ("Slice update not yet implemented")
309 # record current users affiliated with the slice
310 slice_record.reg_researchers = \
311 [ self.locate_by_type_pointer ('user',user_id) for user_id in slice['user_ids'] ]
313 slice_record.stale=False
315 ### remove stale records
316 # special records must be preserved
317 system_hrns = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
318 for record in all_records:
319 if record.hrn in system_hrns:
321 if record.peer_authority:
324 for record in all_records:
325 try: stale=record.stale
328 self.logger.warning("stale not found with %s"%record)
330 self.logger.info("DummyImporter: deleting stale record: %s" % record)
331 dbsession.delete(record)