from types import StringTypes from collections import defaultdict import sys from sfa.util.xrn import get_leaf, get_authority, urn_to_hrn from sfa.util.plxrn import hrn_to_pl_slicename from sfa.util.policy import Policy from sfa.rspecs.rspec import RSpec from sfa.plc.vlink import VLink from sfa.util.xrn import Xrn MAXINT = 2L**31-1 class SlabSlices: rspec_to_slice_tag = {'max_rate':'net_max_rate'} def __init__(self, api, ttl = .5, origin_hrn=None): self.api = api #filepath = path + os.sep + filename self.policy = Policy(self.api) self.origin_hrn = origin_hrn self.registry = api.registries[api.hrn] self.credential = api.getCredential() self.nodes = [] self.persons = [] #def get_slivers(self, xrn, node=None): #hrn, type = urn_to_hrn(xrn) #slice_name = hrn_to_pl_slicename(hrn) ## XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead ## of doing all of this? ##return self.api.driver.GetSliceTicket(self.auth, slice_name) ## from PLCAPI.GetSlivers.get_slivers() #slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids'] #slices = self.api.driver.GetSlices(slice_name, slice_fields) ## Build up list of users and slice attributes #person_ids = set() #all_slice_tag_ids = set() #for slice in slices: #person_ids.update(slice['person_ids']) #all_slice_tag_ids.update(slice['slice_tag_ids']) #person_ids = list(person_ids) #all_slice_tag_ids = list(all_slice_tag_ids) ## Get user information #all_persons_list = self.api.driver.GetPersons({'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids']) #all_persons = {} #for person in all_persons_list: #all_persons[person['person_id']] = person ## Build up list of keys #key_ids = set() #for person in all_persons.values(): #key_ids.update(person['key_ids']) #key_ids = list(key_ids) ## Get user account keys #all_keys_list = self.api.driver.GetKeys(key_ids, ['key_id', 'key', 'key_type']) #all_keys = {} #for key in all_keys_list: #all_keys[key['key_id']] = key ## Get slice attributes #all_slice_tags_list = self.api.driver.GetSliceTags(all_slice_tag_ids) #all_slice_tags = {} #for slice_tag in all_slice_tags_list: #all_slice_tags[slice_tag['slice_tag_id']] = slice_tag #slivers = [] #for slice in slices: #keys = [] #for person_id in slice['person_ids']: #if person_id in all_persons: #person = all_persons[person_id] #if not person['enabled']: #continue #for key_id in person['key_ids']: #if key_id in all_keys: #key = all_keys[key_id] #keys += [{'key_type': key['key_type'], #'key': key['key']}] #attributes = [] ## All (per-node and global) attributes for this slice #slice_tags = [] #for slice_tag_id in slice['slice_tag_ids']: #if slice_tag_id in all_slice_tags: #slice_tags.append(all_slice_tags[slice_tag_id]) ## Per-node sliver attributes take precedence over global ## slice attributes, so set them first. ## Then comes nodegroup slice attributes ## Followed by global slice attributes #sliver_attributes = [] #if node is not None: #for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags): #sliver_attributes.append(sliver_attribute['tagname']) #attributes.append({'tagname': sliver_attribute['tagname'], #'value': sliver_attribute['value']}) ## set nodegroup slice attributes #for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags): ## Do not set any nodegroup slice attributes for ## which there is at least one sliver attribute ## already set. #if slice_tag not in slice_tags: #attributes.append({'tagname': slice_tag['tagname'], #'value': slice_tag['value']}) #for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags): ## Do not set any global slice attributes for ## which there is at least one sliver attribute ## already set. #if slice_tag['tagname'] not in sliver_attributes: #attributes.append({'tagname': slice_tag['tagname'], #'value': slice_tag['value']}) ## XXX Sanity check; though technically this should be a system invariant ## checked with an assertion #if slice['expires'] > MAXINT: slice['expires']= MAXINT #slivers.append({ #'hrn': hrn, #'name': slice['name'], #'slice_id': slice['slice_id'], #'instantiation': slice['instantiation'], #'expires': slice['expires'], #'keys': keys, #'attributes': attributes #}) #return slivers def get_peer(self, xrn): hrn, type = urn_to_hrn(xrn) # Becaues of myplc federation, we first need to determine if this # slice belongs to out local plc or a myplc peer. We will assume it # is a local site, unless we find out otherwise peer = None print>>sys.stderr, " \r\n \r\n \t slices.py get_peer slice_authority " # get this slice's authority (site) slice_authority = get_authority(hrn) # get this site's authority (sfa root authority or sub authority) site_authority = get_authority(slice_authority).lower() print>>sys.stderr, " \r\n \r\n \t slices.py get_peer slice_authority %s site_authority %s" %(slice_authority,site_authority) # check if we are already peered with this site_authority, if so #peers = self.api.driver.GetPeers({}, ['peer_id', 'peername', 'shortname', 'hrn_root']) #for peer_record in peers: #names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)] #if site_authority in names: #peer = peer_record return peer def get_sfa_peer(self, xrn): hrn, type = urn_to_hrn(xrn) # return the authority for this hrn or None if we are the authority sfa_peer = None slice_authority = get_authority(hrn) site_authority = get_authority(slice_authority) if site_authority != self.api.hrn: sfa_peer = site_authority return sfa_peer def verify_slice_nodes(self, slice, requested_slivers, peer): current_slivers = [] deleted_nodes = [] if slice['node_ids']: nodes = self.api.driver.GetNodes(slice['node_ids'], ['hostname']) current_slivers = [node['hostname'] for node in nodes] # remove nodes not in rspec deleted_nodes = list(set(current_slivers).difference(requested_slivers)) # add nodes from rspec added_nodes = list(set(requested_slivers).difference(current_slivers)) print>>sys.stderr , "\r\n \r\n \t slices.py verify_slice_nodes added_nodes %s slice %s" %( added_nodes,slice) try: if peer: self.api.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname']) #PI is a list, get the only username in this list #so that the OAR/LDAP knows the user: remove the authority from the name tmp= slice['PI'][0].split(".") username = tmp[(len(tmp)-1)] self.api.driver.AddSliceToNodes(slice['name'], added_nodes, username) if deleted_nodes: self.api.driver.DeleteSliceFromNodes(slice['name'], deleted_nodes) except: self.api.logger.log_exc('Failed to add/remove slice from nodes') def free_egre_key(self): used = set() for tag in self.api.driver.GetSliceTags({'tagname': 'egre_key'}): used.add(int(tag['value'])) for i in range(1, 256): if i not in used: key = i break else: raise KeyError("No more EGRE keys available") return str(key) def verify_slice_links(self, slice, links, aggregate): return def handle_peer(self, site, slice, persons, peer): if peer: # bind site try: if site: self.api.driver.BindObjectToPeer('site', site['site_id'], peer['shortname'], slice['site_id']) except Exception,e: self.api.driver.DeleteSite(site['site_id']) raise e # bind slice try: if slice: self.api.driver.BindObjectToPeer('slice', slice['slice_id'], peer['shortname'], slice['slice_id']) except Exception,e: self.api.driver.DeleteSlice(slice['slice_id']) raise e # bind persons for person in persons: try: self.api.driver.BindObjectToPeer('person', person['person_id'], peer['shortname'], person['peer_person_id']) for (key, remote_key_id) in zip(person['keys'], person['key_ids']): try: self.api.driver.BindObjectToPeer( 'key', key['key_id'], peer['shortname'], remote_key_id) except: self.api.driver.DeleteKey(key['key_id']) self.api.logger("failed to bind key: %s to peer: %s " % (key['key_id'], peer['shortname'])) except Exception,e: self.api.driver.DeletePerson(person['person_id']) raise e return slice def verify_site(self, slice_xrn, slice_record={}, peer=None, sfa_peer=None): (slice_hrn, type) = urn_to_hrn(slice_xrn) site_hrn = get_authority(slice_hrn) # login base can't be longer than 20 characters slicename = hrn_to_pl_slicename(slice_hrn) authority_name = slicename.split('_')[0] login_base = authority_name[:20] sites = self.api.driver.GetSites(login_base) if not sites: # create new site record site = {'name': 'geni.%s' % authority_name, 'abbreviated_name': authority_name, 'login_base': login_base, 'max_slices': 100, 'max_slivers': 1000, 'enabled': True, 'peer_site_id': None} if peer: site['peer_site_id'] = slice_record.get('site_id', None) site['site_id'] = self.api.driver.AddSite(site) # exempt federated sites from monitor policies self.api.driver.AddSiteTag(site['site_id'], 'exempt_site_until', "20200101") # is this still necessary? # add record to the local registry if sfa_peer and slice_record: peer_dict = {'type': 'authority', 'hrn': site_hrn, \ 'peer_authority': sfa_peer, 'pointer': site['site_id']} self.registry.register_peer_object(self.credential, peer_dict) else: site = sites[0] if peer: # unbind from peer so we can modify if necessary. Will bind back later self.api.driver.UnBindObjectFromPeer('site', site['site_id'], peer['shortname']) return site def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer): #slicename = hrn_to_pl_slicename(slice_hrn) parts = hrn_to_pl_slicename(slice_hrn).split("_") login_base = parts[0] slicename = slice_hrn slices = self.api.driver.GetSlices([slicename]) print>>sys.stderr, " \r\n \r\rn Slices.py verify_slice slicename %s slices %s slice_record %s"%(slicename ,slices, slice_record) if not slices: slice = {'name': slicename, 'url': slice_record.get('url', slice_hrn), #'description': slice_record.get('description', slice_hrn) } # add the slice slice['slice_id'] = self.api.driver.AddSlice(slice) slice['node_ids'] = [] slice['person_ids'] = [] if peer: slice['peer_slice_id'] = slice_record.get('slice_id', None) # mark this slice as an sfa peer record if sfa_peer: peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice['slice_id']} self.registry.register_peer_object(self.credential, peer_dict) else: slice = slices[0] slice.update(slice_record) del slice['last_updated'] del slice['date_created'] if peer: slice['peer_slice_id'] = slice_record.get('slice_id', None) # unbind from peer so we can modify if necessary. Will bind back later self.api.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname']) #Update existing record (e.g. expires field) it with the latest info. #if slice_record and slice['expires'] != slice_record['expires']: #self.api.driver.UpdateSlice( slice['slice_id'], {'expires' : slice_record['expires']}) return slice #def get_existing_persons(self, users): def verify_persons(self, slice_hrn, slice_record, users, append=True): users_by_id = {} users_by_hrn = {} users_dict = {} for user in users: if 'person_id' in user and 'hrn' in user: users_by_id[user['person_id']] = user users_dict[user['person_id']] = {'person_id':user['person_id'], 'hrn':user['hrn']} #hrn, type = urn_to_hrn(user['urn']) #username = get_leaf(hrn) #login_base = get_leaf(get_authority(user['urn'])) #user['username'] = username #users_by_site[login_base].append(user) users_by_hrn[user['hrn']] = user users_dict[user['hrn']] = {'person_id':user['person_id'], 'hrn':user['hrn']} existing_user_ids = [] existing_users= [] if users_by_hrn: # get existing users by email existing_users = self.api.driver.GetPersons({'hrn': users_by_hrn.keys()}, ['hrn']) #print>>sys.stderr, " \r\n \r\n \t slices.py HEEEEEEEEY===========verify_person existing_users %s users_dict %s " %(existing_users, users_dict) #existing_user_ids = [(users_dict[user['hrn']]['hrn'],users_dict[user['hrn']]['person_id'] ) for user in existing_users] for user in existing_users : for k in users_dict[user['hrn']] : existing_user_ids.append (users_dict[user['hrn']][k]) #print>>sys.stderr, " \r\n \r\n slices.py verify_person existing_user_ids %s " %(existing_user_ids) #if users_by_id: #existing_user_ids.extend([user for user in users_by_id]) #if users_by_site: ## get a list of user sites (based on requeste user urns #site_list = self.api.driver.GetSites(users_by_site.keys(), \ #['site_id', 'login_base', 'person_ids']) #sites = {} #site_user_ids = [] ## get all existing users at these sites #for site in site_list: #sites[site['site_id']] = site #site_user_ids.extend(site['person_ids']) #existing_site_persons_list = self.api.driver.GetPersons(site_user_ids, #['person_id', 'key_ids', 'email', 'site_ids']) ## all requested users are either existing users or new (added) users #for login_base in users_by_site: #requested_site_users = users_by_site[login_base] #for requested_user in requested_site_users: #user_found = False #for existing_user in existing_site_persons_list: #for site_id in existing_user['site_ids']: #site = sites[site_id] #if login_base == site['login_base'] and \ #existing_user['email'].startswith(requested_user['username']): #existing_user_ids.append(existing_user['email']) #users_dict[existing_user['email']] = requested_user #user_found = True #break #if user_found: #break #if user_found == False: #fake_email = requested_user['username'] + '@geni.net' #users_dict[fake_email] = requested_user # requested slice users requested_user_ids = users_dict.keys() # existing slice users existing_slice_users_filter = {'hrn': slice_record.get('PI', [])} #print>>sys.stderr, " \r\n \r\n slices.py verify_person requested_user_ids %s existing_slice_users_filter %s slice_record %s" %(requested_user_ids,existing_slice_users_filter,slice_record) existing_slice_users = self.api.driver.GetPersons(existing_slice_users_filter,['hrn']) existing_slice_user_ids = [] for user in existing_slice_users : for k in users_dict[user['hrn']] : existing_slice_user_ids.append (users_dict[user['hrn']][k]) #existing_slice_user_ids = [user['hrn'] for user in existing_slice_users] #print>>sys.stderr, " \r\n \r\n slices.py verify_person requested_user_ids %s existing_slice_user_ids%s " %(requested_user_ids,existing_slice_user_ids) # users to be added, removed or updated added_user_ids = set(requested_user_ids).difference(set(existing_user_ids)) added_slice_user_ids = set(requested_user_ids).difference(existing_slice_user_ids) removed_user_ids = set(existing_slice_user_ids).difference(requested_user_ids) #print>>sys.stderr, " \r\n \r\n slices.py verify_persons existing_slice_user_ids %s requested_user_ids %s " %(existing_slice_user_ids,requested_user_ids) updated_user_ids = set(existing_slice_user_ids).intersection(requested_user_ids) #print>>sys.stderr, " \r\n \r\n slices.py verify_persons added_user_ids %s added_slice_user_ids %s " %(added_user_ids,added_slice_user_ids) #print>>sys.stderr, " \r\n \r\n slices.py verify_persons removed_user_ids %s updated_user_ids %s " %(removed_user_ids,updated_user_ids) # Remove stale users (only if we are not appending). if append == False: for removed_user_id in removed_user_ids: self.api.driver.DeletePersonFromSlice(removed_user_id, slice_record['name']) # update_existing users updated_users_list = [user for user in existing_slice_users if user['hrn'] in \ updated_user_ids] #self.verify_keys(existing_slice_users, updated_users_list, peer, append) added_persons = [] # add new users for added_user_id in added_user_ids: added_user = users_dict[added_user_id] #hrn, type = urn_to_hrn(added_user['urn']) person = { #'first_name': added_user.get('first_name', hrn), #'last_name': added_user.get('last_name', hrn), 'person_id': added_user_id, #'peer_person_id': None, #'keys': [], #'key_ids': added_user.get('key_ids', []), } #print>>sys.stderr, " \r\n \r\n slices.py verify_persons added_user_ids %s " %(added_user_ids) person['person_id'] = self.api.driver.AddPerson(person) if peer: person['peer_person_id'] = added_user['person_id'] added_persons.append(person) # enable the account self.api.driver.UpdatePerson(person['person_id'], {'enabled': True}) # add person to site #self.api.driver.AddPersonToSite(added_user_id, login_base) #for key_string in added_user.get('keys', []): #key = {'key':key_string, 'key_type':'ssh'} #key['key_id'] = self.api.driver.AddPersonKey(person['person_id'], key) #person['keys'].append(key) # add the registry record #if sfa_peer: #peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': sfa_peer, \ #'pointer': person['person_id']} #self.registry.register_peer_object(self.credential, peer_dict) for added_slice_user_id in added_slice_user_ids.union(added_user_ids): # add person to the slice self.api.driver.AddPersonToSlice(added_slice_user_id, slice_record['name']) # if this is a peer record then it should already be bound to a peer. # no need to return worry about it getting bound later return added_persons def verify_keys(self, persons, users, peer, append=True): # existing keys key_ids = [] for person in persons: key_ids.extend(person['key_ids']) keylist = self.api.driver.GetKeys(key_ids, ['key_id', 'key']) keydict = {} for key in keylist: keydict[key['key']] = key['key_id'] existing_keys = keydict.keys() persondict = {} for person in persons: persondict[person['email']] = person # add new keys requested_keys = [] updated_persons = [] for user in users: user_keys = user.get('keys', []) updated_persons.append(user) for key_string in user_keys: requested_keys.append(key_string) if key_string not in existing_keys: key = {'key': key_string, 'key_type': 'ssh'} try: if peer: person = persondict[user['email']] self.api.driver.UnBindObjectFromPeer('person', person['person_id'], peer['shortname']) key['key_id'] = self.api.driver.AddPersonKey(user['email'], key) if peer: key_index = user_keys.index(key['key']) remote_key_id = user['key_ids'][key_index] self.api.driver.BindObjectToPeer('key', key['key_id'], peer['shortname'], remote_key_id) finally: if peer: self.api.driver.BindObjectToPeer('person', person['person_id'], peer['shortname'], user['person_id']) # remove old keys (only if we are not appending) if append == False: removed_keys = set(existing_keys).difference(requested_keys) for existing_key_id in keydict: if keydict[existing_key_id] in removed_keys: try: if peer: self.api.driver.UnBindObjectFromPeer('key', existing_key_id, peer['shortname']) self.api.driver.DeleteKey(existing_key_id) except: pass def verify_slice_attributes(self, slice, requested_slice_attributes, append=False, admin=False): # get list of attributes users ar able to manage filter = {'category': '*slice*'} if not admin: filter['|roles'] = ['user'] slice_attributes = self.api.driver.GetTagTypes(filter) valid_slice_attribute_names = [attribute['tagname'] for attribute in slice_attributes] # get sliver attributes added_slice_attributes = [] removed_slice_attributes = [] ignored_slice_attribute_names = [] existing_slice_attributes = self.api.driver.GetSliceTags({'slice_id': slice['slice_id']}) # get attributes that should be removed for slice_tag in existing_slice_attributes: if slice_tag['tagname'] in ignored_slice_attribute_names: # If a slice already has a admin only role it was probably given to them by an # admin, so we should ignore it. ignored_slice_attribute_names.append(slice_tag['tagname']) else: # If an existing slice attribute was not found in the request it should # be removed attribute_found=False for requested_attribute in requested_slice_attributes: if requested_attribute['name'] == slice_tag['tagname'] and \ requested_attribute['value'] == slice_tag['value']: attribute_found=True break if not attribute_found and not append: removed_slice_attributes.append(slice_tag) # get attributes that should be added: for requested_attribute in requested_slice_attributes: # if the requested attribute wasn't found we should add it if requested_attribute['name'] in valid_slice_attribute_names: attribute_found = False for existing_attribute in existing_slice_attributes: if requested_attribute['name'] == existing_attribute['tagname'] and \ requested_attribute['value'] == existing_attribute['value']: attribute_found=True break if not attribute_found: added_slice_attributes.append(requested_attribute) # remove stale attributes for attribute in removed_slice_attributes: try: self.api.driver.DeleteSliceTag(attribute['slice_tag_id']) except Exception, e: self.api.logger.warn('Failed to remove sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\ % (name, value, node_id, str(e))) # add requested_attributes for attribute in added_slice_attributes: try: self.api.driver.AddSliceTag(slice['name'], attribute['name'], attribute['value'], attribute.get('node_id', None)) except Exception, e: self.api.logger.warn('Failed to add sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\ % (name, value, node_id, str(e))) def create_slice_aggregate(self, xrn, rspec): hrn, type = urn_to_hrn(xrn) # Determine if this is a peer slice peer = self.get_peer(hrn) sfa_peer = self.get_sfa_peer(hrn) spec = RSpec(rspec) # Get the slice record from sfa slicename = hrn_to_pl_slicename(hrn) slice = {} slice_record = None registry = self.api.registries[self.api.hrn] credential = self.api.getCredential() site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer) slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer) # find out where this slice is currently running nodelist = self.api.driver.GetNodes(slice['node_ids'], ['hostname']) hostnames = [node['hostname'] for node in nodelist] # get netspec details nodespecs = spec.getDictsByTagName('NodeSpec') # dict in which to store slice attributes to set for the nodes nodes = {} for nodespec in nodespecs: if isinstance(nodespec['name'], list): for nodename in nodespec['name']: nodes[nodename] = {} for k in nodespec.keys(): rspec_attribute_value = nodespec[k] if (self.rspec_to_slice_tag.has_key(k)): slice_tag_name = self.rspec_to_slice_tag[k] nodes[nodename][slice_tag_name] = rspec_attribute_value elif isinstance(nodespec['name'], StringTypes): nodename = nodespec['name'] nodes[nodename] = {} for k in nodespec.keys(): rspec_attribute_value = nodespec[k] if (self.rspec_to_slice_tag.has_key(k)): slice_tag_name = self.rspec_to_slice_tag[k] nodes[nodename][slice_tag_name] = rspec_attribute_value for k in nodespec.keys(): rspec_attribute_value = nodespec[k] if (self.rspec_to_slice_tag.has_key(k)): slice_tag_name = self.rspec_to_slice_tag[k] nodes[nodename][slice_tag_name] = rspec_attribute_value node_names = nodes.keys() # remove nodes not in rspec deleted_nodes = list(set(hostnames).difference(node_names)) # add nodes from rspec added_nodes = list(set(node_names).difference(hostnames)) try: if peer: self.api.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer) self.api.driver.AddSliceToNodes(slicename, added_nodes) # Add recognized slice tags for node_name in node_names: node = nodes[node_name] for slice_tag in node.keys(): value = node[slice_tag] if (isinstance(value, list)): value = value[0] self.api.driver.AddSliceTag(slicename, slice_tag, value, node_name) self.api.driver.DeleteSliceFromNodes(slicename, deleted_nodes) finally: if peer: self.api.driver.BindObjectToPeer('slice', slice['slice_id'], peer, slice['peer_slice_id']) return 1