def check_match(self, obj):
try:
tag = obj[self._tagName]
except KeyError:
if self._tagOpt:
return
else:
raise tuf.FormatException("Missing tag %s on object" %
self._tagName)
except TypeError:
raise tuf.FormatException("Got a %s, not a tagged object" %
type(obj))
if not isinstance(tag, basestring):
raise tuf.FormatException("Expected a string for %s; got a %s" % (
self._tagName, type(tag)))
try:
subschema = self._tagvals[tag]
except KeyError:
if self._ignoreOthers:
return
else:
raise tuf.FormatException("Unrecognized value %s for %s" % (
tag, self._tagName))
subschema.check_match(obj)
def check_match(self, obj):
if isinstance(obj, bool) or not isinstance(obj, (int, long)):
# We need to check for bool as a special case, since bool
# is for historical reasons a subtype of int.
raise tuf.FormatException("Got %r instead of an integer" % obj)
elif not (self._lo <= obj <= self._hi):
raise tuf.FormatException("%r not in range [%r,%r]"
% (obj, self._lo, self._hi))
def check_match(self, obj):
if not isinstance(obj, (list, tuple)):
raise tuf.FormatException("Expected %s; got %r"
% (self._listName, obj))
for item in obj:
try:
self._schema.check_match(item)
except tuf.FormatException, e:
raise tuf.FormatException("%s in %s" % (e, self._listName))
def check_match(self, obj):
if not isinstance(obj, (list, tuple)):
raise tuf.FormatException("Expected %s; got %r"
% (self._structName, obj))
elif len(obj) < self._min:
raise tuf.FormatException(
"Too few fields in %s" % self._structName)
elif len(obj) > len(self._subschemas) and not self._allowMore:
raise tuf.FormatException(
"Too many fields in %s" % self._structName)
for item, schema in zip(obj, self._subschemas):
schema.check_match(item)
def check_match(self, obj):
try:
iter = obj.iteritems()
except AttributeError:
raise tuf.FormatException("Expected a dict; got %r" % obj)
for k, v in iter:
self._keySchema.check_match(k)
self._valSchema.check_match(v)
def check_match(self, obj):
if not isinstance(obj, dict):
raise tuf.FormatException("Wanted a %s; did not get a dict" %
self._objname)
for k, schema in self._required:
try:
item = obj[k]
except KeyError:
if not isinstance(schema, Opt):
raise tuf.FormatException("Missing key %s in %s"
% (k, self._objname))
else:
try:
schema.check_match(item)
except tuf.FormatException, e:
raise tuf.FormatException("%s in %s.%s"
% (e, self._objname, k))
class ListOf(Schema):
"""
Matches a homogenous list of some subschema.
>>> s = ListOf(RE("(?:..)*"))
>>> s.matches("hi")
False
>>> s.matches([])
True
>>> s.matches({})
False
>>> s.matches(["Hi", "this", "list", "is", "full", "of", "even", "strs"])
True
>>> s.matches(["This", "one", "is not"])
False
>>> s = ListOf(Int(), minCount=3, maxCount=10)
>>> s.matches([3]*2)
False
>>> s.matches([3]*3)
True
>>> s.matches([3]*10)
True
>>> s.matches([3]*11)
False
"""
def __init__(self, schema, minCount=0, maxCount=sys.maxint, listName="list"):
self._schema = schema
self._minCount = minCount
self._maxCount = maxCount
self._listName = listName
def check_match(self, obj):
if not isinstance(obj, (list, tuple)):
raise tuf.FormatException("Expected %s; got %r"
% (self._listName, obj))
for item in obj:
try:
self._schema.check_match(item)
except tuf.FormatException, e:
raise tuf.FormatException("%s in %s" % (e, self._listName))
if not (self._minCount <= len(obj) <= self._maxCount):
raise tuf.FormatException("Length of %s out of range"
% self._listName)
def check_match(self, obj):
if self._str != obj:
raise tuf.FormatException("Expected %r; got %r" % (self._str, obj))
def check_match(self, obj):
if not isinstance(obj, basestring) or not self._re.match(obj):
raise tuf.FormatException("%r did not match %s"
% (obj, self._reName))
def check_match(self, obj):
if self._base:
self._base.check_match(obj)
r = self._fn(obj)
if r is False:
raise tuf.FormatException("%s returned False" % self._fn)
def check_match(self, obj):
if not isinstance(obj, bool):
raise tuf.FormatException("Got %r instead of a boolean" % obj)
def check_match(self, obj):
for m in self._subschemas:
if m.matches(obj):
return
raise tuf.FormatException("Object matched no recognized alternative")
def check_match(self, obj):
if not isinstance(obj, basestring):
raise tuf.FormatException("Expected a string; got %r" % obj)