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self.lookups = 0
# New processing limit in RFC 7208, section 4.6.4
self.void_lookups = 0
# strict can be False, True, or 2 (numeric) for harsh
self.strict = strict
self.timeout = timeout
self.querytime = querytime # Default to not using a global check
# timelimit since this is an RFC 4408 MAY
if querytime > 0:
self.timeout = querytime
self.timer = 0
self.ipaddr = None
if i:
self.set_ip(i)
# Document bits of the object model not set up here:
# self.i = string, expanded dot notation, suitable for PTR lookups
# self.c = string, human readable form of the connect IP address
# single letter lowercase variable names (e.g. self.i) are used for SPF macros
# For IPv4, self.i = self.c, but not in IPv6
# self.iplist = list of IPv4/6 addresses that would pass, collected
# when list or list6 is passed as 'i'
# self.addr = ipaddr/ipaddress object representing the connect IP
self.default_modifier = True
self.verbose = verbose
self.authserv = None # Only used in A-R header generation tests
def log(self,mech,d,spf):
print('%s: %s "%s"'%(mech,d,spf))
def set_ip(self, i):
"Set connect ip, and ip6 or ip4 mode."
self.iplist = False
if i.lower() == 'list':
self.iplist = []
ip6 = False
elif i.lower() == 'list6':
self.iplist = []
ip6 = True
else:
try:
try:
self.ipaddr = ipaddress.ip_address(i)
except AttributeError:
self.ipaddr = ipaddress.IPAddress(i)
except ValueError as x:
raise PermError(str(x))
if self.ipaddr.version == 6:
if self.ipaddr.ipv4_mapped:
self.ipaddr = ipaddress.IPv4Address(self.ipaddr.ipv4_mapped)
ip6 = False
else:
ip6 = True
else:
ip6 = False
self.c = str(self.ipaddr)
# NOTE: self.A is not lowercase, so isn't a macro. See query.expand()
if ip6:
self.A = 'AAAA'
self.v = 'ip6'
if self.ipaddr:
self.i = '.'.join(list(self.ipaddr.exploded.replace(':','').upper()))
self.cidrmax = 128
else:
self.A = 'A'
self.v = 'in-addr'
if self.ipaddr:
self.i = self.ipaddr.exploded
self.cidrmax = 32
def set_default_explanation(self, exp):
exps = self.exps
defexps = self.defexps
for i in 'softfail', 'fail', 'permerror':
exps[i] = exp
defexps[i] = exp
def set_explanation(self, exp):
exps = self.exps
for i in 'softfail', 'fail', 'permerror':
exps[i] = exp
# Compute p macro only if needed
def getp(self):
if not self.p:
p = self.validated_ptrs()
if not p:
self.p = "unknown"
elif self.d in p:
self.p = self.d
else:
sfx = '.' + self.d
for d in p:
if d.endswith(sfx):
self.p = d
break
else:
self.p = p[0]
return self.p
def best_guess(self, spf=DEFAULT_SPF):