From: Thierry Parmentelat Date: Fri, 24 Feb 2012 17:47:01 +0000 (+0100) Subject: Merge branch 'master' into sqlalchemy X-Git-Tag: sfa-2.1-4~100 X-Git-Url: http://git.onelab.eu/?p=sfa.git;a=commitdiff_plain;h=5822ffb68c0d4cc5e29ec945e0dc21125294463f Merge branch 'master' into sqlalchemy Conflicts: sfa/importer/sfa-import-plc.py --- 5822ffb68c0d4cc5e29ec945e0dc21125294463f diff --cc sfa/importer/plimporter.py index 2431099b,00000000..153104b7 mode 100644,000000..100644 --- a/sfa/importer/plimporter.py +++ b/sfa/importer/plimporter.py @@@ -1,373 -1,0 +1,374 @@@ +# +# 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 +from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn +from sfa.util.plxrn import hostname_to_hrn, slicename_to_hrn, email_to_hrn, hrn_to_pl_slicename + +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, RegSlice, RegNode, RegUser, RegKey + +from sfa.plc.plshell import PlShell + +def _get_site_hrn(interface_hrn, site): + # Hardcode 'internet2' into the hrn for sites hosting + # internet2 nodes. This is a special operation for some vini + # sites only + hrn = ".".join([interface_hrn, site['login_base']]) + if ".vini" in interface_hrn and interface_hrn.endswith('vini'): + if site['login_base'].startswith("i2") or site['login_base'].startswith("nlr"): + hrn = ".".join([interface_hrn, "internet2", site['login_base']]) + return hrn + + +class PlImporter: + + def __init__ (self, auth_hierarchy, logger): + self.auth_hierarchy = auth_hierarchy + self.logger=logger + + def add_options (self, parser): + # 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 + if ".vini" in interface_hrn and interface_hrn.endswith('vini'): + # create a fake internet2 site first + 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 ( '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(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("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']) + # 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} ) + # 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']: + pubkeys.append(keys_by_id[key_id]) + 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 + 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) + 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("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 + for node_id in site['node_ids']: + try: + node = nodes_by_id[node_id] + except: + 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 ( '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 (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("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_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 + 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: + 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(slice_hrn, 'slice') + slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey) + 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("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 + + ### 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: + record.stale=False + if ".vini" in interface_hrn and interface_hrn.endswith('vini') and \ + record.hrn.endswith("internet2"): + record.stale=False + + 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()