X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fimporter%2Fplimporter.py;h=d205a87b6cc46f319d51f1e83b7bfe4ea3f1e630;hb=0f90da7f05fbe3d07e56790c10f6ecc877b33754;hp=d5d3d3bd0d42c38ae09359243184dbc7aac7c3a9;hpb=699667b3e734e954b0c93fbb2a6c29d82246d1dd;p=sfa.git diff --git a/sfa/importer/plimporter.py b/sfa/importer/plimporter.py index d5d3d3bd..d205a87b 100644 --- a/sfa/importer/plimporter.py +++ b/sfa/importer/plimporter.py @@ -1,3 +1,21 @@ +# +# 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 @@ -8,25 +26,9 @@ from sfa.trust.gid import create_uuid from sfa.trust.certificate import convert_public_key, Keypair from sfa.storage.alchemy import dbsession -from sfa.storage.model import RegRecord, RegAuthority, RegUser, RegSlice, RegNode - -from sfa.plc.plshell import PlShell - -def load_keys(filename): - keys = {} - tmp_dict = {} - try: - execfile(filename, tmp_dict) - if 'keys' in tmp_dict: - keys = tmp_dict['keys'] - return keys - except: - return keys +from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey -def save_keys(filename, keys): - f = open(filename, 'w') - f.write("keys = %s" % str(keys)) - f.close() +from sfa.planetlab.plshell import PlShell def _get_site_hrn(interface_hrn, site): # Hardcode 'internet2' into the hrn for sites hosting @@ -45,296 +47,340 @@ class PlImporter: self.auth_hierarchy = auth_hierarchy self.logger=logger - def record_options (self, parser): - self.logger.debug ("PlImporter no options yet") + def add_options (self, parser): + # we don't have any options for now pass - def run (self, options): - # we don't have any options for now - self.logger.info ("PlImporter.run : to do") + # 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 - config = Config () - interface_hrn = config.SFA_INTERFACE_HRN - root_auth = config.SFA_REGISTRY_ROOT_AUTH - shell = PlShell (config) + # 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 - # create dict of all existing sfa records - existing_records = {} - existing_hrns = [] - key_ids = [] - for record in dbsession.query(RegRecord): - existing_records[ (record.hrn, record.type,) ] = record - existing_hrns.append(record.hrn) - - # Get all plc sites - sites = shell.GetSites({'peer_id': None}) - sites_dict = {} - for site in sites: - sites_dict[site['login_base']] = site - - # Get all plc users - persons = shell.GetPersons({'peer_id': None, 'enabled': True}, - ['person_id', 'email', 'key_ids', 'site_ids']) - persons_dict = {} - for person in persons: - persons_dict[person['person_id']] = person - key_ids.extend(person['key_ids']) + def remember_record (self, record): + self.remember_record_by_hrn (record) + self.remember_record_by_pointer (record) - # Get all public keys - keys = shell.GetKeys( {'peer_id': None, 'key_id': key_ids}) - keys_dict = {} - for key in keys: - keys_dict[key['key_id']] = key['key'] + def locate_by_type_hrn (self, type, hrn): + return self.records_by_type_hrn.get ( (type, hrn), None) - # create a dict of person keys keyed on key_id - keys_filename = config.config_path + os.sep + 'person_keys.py' - old_person_keys = load_keys(keys_filename) - person_keys = {} - for person in persons: - pubkeys = [] - for key_id in person['key_ids']: - pubkeys.append(keys_dict[key_id]) - person_keys[person['person_id']] = pubkeys + def locate_by_type_pointer (self, type, pointer): + return self.records_by_type_pointer.get ( (type, pointer), None) - # Get all plc nodes - nodes = shell.GetNodes( {'peer_id': None}, ['node_id', 'hostname', 'site_id']) - nodes_dict = {} - for node in nodes: - nodes_dict[node['node_id']] = node - - # Get all plc slices - slices = shell.GetSlices( {'peer_id': None}, ['slice_id', 'name']) - slices_dict = {} - for slice in slices: - slices_dict[slice['slice_id']] = slice + # 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 if ".vini" in interface_hrn and interface_hrn.endswith('vini'): # create a fake internet2 site first - i2site = {'name': 'Internet2', 'abbreviated_name': 'I2', - 'login_base': 'internet2', 'site_id': -1} + i2site = {'name': 'Internet2', 'login_base': 'internet2', 'site_id': -1} site_hrn = _get_site_hrn(interface_hrn, i2site) # import if hrn is not in list of existing hrns or if the hrn exists # but its not a site record - if site_hrn not in existing_hrns or \ - (site_hrn, 'authority') not in existing_records: + if ( 'authority', site_hrn, ) not in self.records_by_type_hrn: urn = hrn_to_urn(site_hrn, 'authority') if not self.auth_hierarchy.auth_exists(urn): self.auth_hierarchy.create_auth(urn) auth_info = self.auth_hierarchy.get_auth_info(urn) - auth_record = RegAuthority() - auth_record.type='authority' - auth_record.hrn=site_hrn - auth_record.gid=auth_info.get_gid_object() - auth_record.pointer=site['site_id'] - auth_record.authority=get_authority(site_hrn) + auth_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(), + pointer=site['site_id'], + authority=get_authority(site_hrn)) + auth_record.just_created() dbsession.add(auth_record) dbsession.commit() - self.logger.info("Import: Imported authority (vini site) %s"%auth_record) + self.logger.info("PlImporter: Imported authority (vini site) %s"%auth_record) + self.remember_record ( site_record ) + + def run (self, options): + config = Config () + interface_hrn = config.SFA_INTERFACE_HRN + root_auth = config.SFA_REGISTRY_ROOT_AUTH + shell = PlShell (config) + + ######## retrieve all existing SFA objects + all_records = dbsession.query(RegRecord).all() + + # 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 + + ######## retrieve PLC data + # Get all plc sites + # retrieve only required stuf + 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 ] ) + # Get all plc users + persons = shell.GetPersons({'peer_id': None, 'enabled': True}, + ['person_id', 'email', 'key_ids', 'site_ids', 'role_ids']) + # create a hash of persons by person_id + persons_by_id = dict ( [ ( person['person_id'], person) for person in persons ] ) + # Get all plc public keys + # accumulate key ids for keys retrieval + key_ids = [] + for person in persons: + key_ids.extend(person['key_ids']) + keys = shell.GetKeys( {'peer_id': None, 'key_id': key_ids, + 'key_type': 'ssh'} ) + # create a hash of keys by key_id + keys_by_id = dict ( [ ( key['key_id'], key ) for key in keys ] ) + # create a dict person_id -> [ (plc)keys ] + keys_by_person_id = {} + for person in persons: + pubkeys = [] + for key_id in person['key_ids']: + key = keys_by_id[key_id] + if key['key_type'] == 'ssh': + pubkeys.append(key) + keys_by_person_id[person['person_id']] = pubkeys + # Get all plc nodes + nodes = shell.GetNodes( {'peer_id': None}, ['node_id', 'hostname', 'site_id']) + # 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', 'person_ids']) + # create hash by slice_id + slices_by_id = dict ( [ (slice['slice_id'], slice ) for slice in slices ] ) + + # isolate special vini case in separate method + self.create_special_vini_record (interface_hrn) # 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 - if site_hrn not in existing_hrns or \ - (site_hrn, 'authority') not in existing_records: + site_record=self.locate ('authority', site_hrn, site['site_id']) + if not site_record: try: urn = hrn_to_urn(site_hrn, 'authority') if not self.auth_hierarchy.auth_exists(urn): self.auth_hierarchy.create_auth(urn) auth_info = self.auth_hierarchy.get_auth_info(urn) - auth_record = RegAuthority() - auth_record.type='authority' - auth_record.hrn=site_hrn - auth_record.gid=auth_info.get_gid_object() - auth_record.pointer=site['site_id'] - auth_record.authority=get_authority(site_hrn) - dbsession.add(auth_record) + site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(), + pointer=site['site_id'], + authority=get_authority(site_hrn)) + site_record.just_created() + dbsession.add(site_record) dbsession.commit() - self.logger.info("Import: imported authority (site) : %s" % auth_record) + 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("Import: failed to import site. Skipping child records") + 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 for node_id in site['node_ids']: - if node_id not in nodes_dict: + try: + node = nodes_by_id[node_id] + except: + self.logger.warning ("PlImporter: cannot find node_id %s - ignored"%node_id) continue - node = nodes_dict[node_id] site_auth = get_authority(site_hrn) - site_name = get_leaf(site_hrn) + site_name = site['login_base'] hrn = hostname_to_hrn(site_auth, site_name, node['hostname']) - if len(hrn) > 64: - hrn = hrn[:64] - if hrn not in existing_hrns or \ - (hrn, 'node') not in existing_records: + # xxx this sounds suspicious + if len(hrn) > 64: hrn = hrn[:64] + node_record = self.locate ( 'node', hrn , node['node_id'] ) + if not node_record: try: pkey = Keypair(create=True) urn = hrn_to_urn(hrn, 'node') node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey) - node_record = RegNode () - node_record.type='node' - node_record.hrn=hrn - node_record.gid=node_gid - node_record.pointer =node['node_id'] - node_record.authority=get_authority(hrn) + node_record = RegNode (hrn=hrn, gid=node_gid, + pointer =node['node_id'], + authority=get_authority(hrn)) + node_record.just_created() dbsession.add(node_record) dbsession.commit() - self.logger.info("Import: imported node: %s" % node_record) + self.logger.info("PlImporter: imported node: %s" % node_record) + self.remember_record (node_record) except: - self.logger.log_exc("Import: failed to import node") - + self.logger.log_exc("PlImporter: failed to import node") + else: + # xxx update the record ... + pass + node_record.stale=False + + site_pis=[] + # 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_record = 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_record: + (pubkey,pkey) = init_person_key (person, plc_keys ) + person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey) + person_gid.set_email(person['email']) + user_record = RegUser (hrn=person_hrn, gid=person_gid, + pointer=person['person_id'], + authority=get_authority(person_hrn), + email=person['email']) + if pubkey: + user_record.reg_keys=[RegKey (pubkey['key'], pubkey['key_id'])] + else: + self.logger.warning("No key found for user %s"%user_record) + user_record.just_created() + dbsession.add (user_record) + dbsession.commit() + self.logger.info("PlImporter: imported person: %s" % user_record) + self.remember_record ( user_record ) + 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_record.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_record.reg_keys=[] + else: + user_record.reg_keys=[ RegKey (pubkey['key'], pubkey['key_id'])] + self.logger.info("PlImporter: updated person: %s" % user_record) + user_record.email = person['email'] + dbsession.commit() + user_record.stale=False + # accumulate PIs - PLCAPI has a limitation that when someone has PI role + # this is valid for all sites she is in.. + # PI is coded with role_id==20 + if 20 in person['role_ids']: + site_pis.append (user_record) + except: + self.logger.log_exc("PlImporter: failed to import person %d %s"%(person['person_id'],person['email'])) + + # maintain the list of PIs for a given site + site_record.reg_pis = site_pis # import slices for slice_id in site['slice_ids']: - if slice_id not in slices_dict: - continue - slice = slices_dict[slice_id] - hrn = slicename_to_hrn(interface_hrn, slice['name']) - if hrn not in existing_hrns or \ - (hrn, 'slice') not in existing_records: + try: + slice = slices_by_id[slice_id] + 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 ('slice', slice_hrn, slice['slice_id']) + if not slice_record: try: pkey = Keypair(create=True) - urn = hrn_to_urn(hrn, 'slice') + urn = hrn_to_urn(slice_hrn, 'slice') slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey) - slice_record = RegSlice () - slice_record.type='slice' - slice_record.hrn=hrn - slice_record.gid=slice_gid - slice_record.pointer=slice['slice_id'] - slice_record.authority=get_authority(hrn) + slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid, + pointer=slice['slice_id'], + authority=get_authority(slice_hrn)) + slice_record.just_created() dbsession.add(slice_record) dbsession.commit() - self.logger.info("Import: imported slice: %s" % slice_record) + self.logger.info("PlImporter: imported slice: %s" % slice_record) + self.remember_record ( slice_record ) except: - self.logger.log_exc("Import: failed to import slice") + 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']: - if person_id not in persons_dict: - continue - person = persons_dict[person_id] - hrn = email_to_hrn(site_hrn, person['email']) - if len(hrn) > 64: - hrn = hrn[:64] - - # if user's primary key has changed then we need to update the - # users gid by forcing an update here - old_keys = [] - new_keys = [] - if person_id in old_person_keys: - old_keys = old_person_keys[person_id] - if person_id in person_keys: - new_keys = person_keys[person_id] - update_record = False - for key in new_keys: - if key not in old_keys: - update_record = True - - if hrn not in existing_hrns or \ - (hrn, 'user') not in existing_records or update_record: - try: - if 'key_ids' in person and person['key_ids']: - key = new_keys[0] - try: - pkey = convert_public_key(key) - except: - self.logger.warn('unable to convert public key for %s' % hrn) - pkey = Keypair(create=True) - else: - # the user has no keys. Creating a random keypair for the user's gid - self.logger.warn("Import: person %s does not have a PL public key"%hrn) - pkey = Keypair(create=True) - urn = hrn_to_urn(hrn, 'user') - person_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey) - person_record = RegUser () - person_record.type='user' - person_record.hrn=hrn - person_record.gid=person_gid - person_record.pointer=person['person_id'] - person_record.authority=get_authority(hrn) - dbsession.add (person_record) - dbsession.commit() - self.logger.info("Import: imported person: %s" % person_record) - except: - self.logger.log_exc("Import: failed to import person.") - - # remove stale records - system_records = [interface_hrn, root_auth, interface_hrn + '.slicemanager'] - for (record_hrn, type) in existing_records.keys(): - if record_hrn in system_records: - continue - - record = existing_records[(record_hrn, type)] + ### remove stale records + # special records must be preserved + system_hrns = [interface_hrn, root_auth, interface_hrn + '.slicemanager'] + for record in all_records: + if record.hrn in system_hrns: + record.stale=False if record.peer_authority: - continue - - # dont delete vini's internet2 placeholdder record - # normally this would be deleted becuase it does not have a plc record + record.stale=False if ".vini" in interface_hrn and interface_hrn.endswith('vini') and \ - record_hrn.endswith("internet2"): - continue - - found = False - - if type == 'authority': - for site in sites: - site_hrn = interface_hrn + "." + site['login_base'] - if site_hrn == record_hrn and site['site_id'] == record.pointer: - found = True - break + record.hrn.endswith("internet2"): + record.stale=False - elif type == 'user': - login_base = get_leaf(get_authority(record_hrn)) - username = get_leaf(record_hrn) - if login_base in sites_dict: - site = sites_dict[login_base] - for person in persons: - tmp_username = person['email'].split("@")[0] - alt_username = person['email'].split("@")[0].replace(".", "_").replace("+", "_") - if username in [tmp_username, alt_username] and \ - site['site_id'] in person['site_ids'] and \ - person['person_id'] == record.pointer: - found = True - break - - elif type == 'slice': - slicename = hrn_to_pl_slicename(record_hrn) - for slice in slices: - if slicename == slice['name'] and \ - slice['slice_id'] == record.pointer: - found = True - break - - elif type == 'node': - login_base = get_leaf(get_authority(record_hrn)) - nodename = Xrn.unescape(get_leaf(record_hrn)) - if login_base in sites_dict: - site = sites_dict[login_base] - for node in nodes: - tmp_nodename = node['hostname'] - if tmp_nodename == nodename and \ - node['site_id'] == site['site_id'] and \ - node['node_id'] == record.pointer: - found = True - break - else: - continue - - if not found: - try: - record_object = existing_records[(record_hrn, type)] - self.logger.info("Import: deleting record: %s" % record) - dbsession.delete(record_object) - dbsession.commit() - except: - self.logger.log_exc("Import: failded to delete record") - - # save pub keys - self.logger.info('Import: saving current pub keys') - save_keys(keys_filename, person_keys) - + for record in all_records: + try: stale=record.stale + except: + stale=True + self.logger.warning("stale not found with %s"%record) + if stale: + self.logger.info("PlImporter: deleting stale record: %s" % record) + dbsession.delete(record) + dbsession.commit()