def aggregator(self, scope, name, command, tokens):
try:
if tokens:
if tokens.pop(0) != '(':
raise ValueError('invalid aggregator syntax')
asn, address = tokens.pop(0).split(':')
if tokens.pop(0) != ')':
raise ValueError('invalid aggregator syntax')
local_as = ASN(asn)
local_address = RouterID(address)
else:
local_as = scope[-1]['local-as']
local_address = scope[-1]['local-address']
except (ValueError, IndexError):
return self.error.set(self.syntax)
except KeyError:
return self.error(
'local-as and/or local-address missing from neighbor/group to make aggregator'
)
except ValueError:
return self.error.set(self.syntax)
scope[-1]['announce'][-1].attributes.add(
Aggregator(local_as, local_address))
return True
def aggregator(tokeniser):
agg = tokeniser()
eat = True if agg == '(' else False
if eat:
agg = tokeniser()
if agg.endswith(')'):
eat = False
agg = agg[:-1]
elif agg.startswith('('):
if agg.endswith(')'):
eat = False
agg = agg[1:-1]
else:
eat = True
agg = agg[1:]
try:
as_number, address = agg.split(':')
local_as = ASN.from_string(as_number)
local_address = RouterID(address)
except (ValueError, IndexError):
raise ValueError('invalid aggregator')
if eat:
if tokeniser() != ')':
raise ValueError('invalid aggregator')
return Aggregator(local_as, local_address)
def aggregator(tokeniser):
eat = True if tokeniser.tokens[0] == '(' else False
if eat:
tokeniser()
value = tokeniser()
if value != '(':
tokeniser.rewind(value)
return None
try:
as_number, address = tokeniser().split(':')
local_as = ASN.from_string(as_number)
local_address = RouterID(address)
except (ValueError, IndexError):
raise ValueError('invalid aggregator')
if eat:
value = tokeniser()
if value != ')':
raise ValueError('invalid aggregator')
# XXX: This is buggy it can be an Aggregator4
return Aggregator(local_as, local_address)
def aggregator(tokeniser):
first = tokeniser.peek()
eat = True if first == '(' else False
if eat:
tokeniser()
try:
as_number, address = tokeniser().split(':')
local_as = ASN.from_string(as_number)
local_address = RouterID(address)
except (ValueError, IndexError):
raise ValueError('invalid aggregator')
if eat:
if tokeniser() != ')':
raise ValueError('invalid aggregator')
return Aggregator(local_as, local_address)
def aggregator (tokeniser):
value = tokeniser()
if value != '(':
tokeniser.rewind(value)
return None
try:
as_number,address = tokeniser().split(':')
except (ValueError,IndexError):
raise ValueError('invalid aggregator')
value = tokeniser()
if value != ')':
raise ValueError('invalid aggregator')
local_as = ASN(as_number)
local_address = RouterID(address)
# XXX: This is buggy it can be an Aggregator4
return Aggregator(local_as,local_address)
def aggregator(tokeniser):
eat = tokeniser.tokens and tokeniser.tokens[0] == '('
if eat:
tokeniser()
try:
as_number, address = tokeniser().split(':')
local_as = ASN.from_string(as_number)
local_address = RouterID(address)
except (ValueError, IndexError):
raise ValueError('invalid aggregator')
if eat:
if tokeniser() != ')':
raise ValueError('invalid aggregator')
# XXX: This could be buggy - check it
if local_as.asn4():
return Aggregator4(local_as, local_address)
return Aggregator(local_as, local_address)
