/usr/share/pyshared/pyasn1/type/namedtype.py is in python-pyasn1 0.0.11a-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | # NamedType specification for constructed types
from pyasn1 import error
class NamedType:
isOptional = 0
isDefaulted = 0
def __init__(self, name, t):
self.__name = name; self.__type = t
def __repr__(self): return '%s(%s, %s)' % (
self.__class__.__name__, repr(self.__name), repr(self.__type)
)
def getType(self): return self.__type
def getName(self): return self.__name
def __getitem__(self, idx):
if idx == 0: return self.__name
if idx == 1: return self.__type
raise IndexError()
class OptionalNamedType(NamedType):
isOptional = 1
class DefaultedNamedType(NamedType):
isDefaulted = 1
class NamedTypes:
def __init__(self, *namedTypes):
self.__namedTypes = namedTypes
self.__minTagSet = None
self.__typeMap = {}; self.__tagMap = {}; self.__nameMap = {}
self.__ambigiousTypes = {}
def __repr__(self):
r = '%s(' % self.__class__.__name__
for n in self.__namedTypes:
r = r + '%s, ' % repr(n)
return r + ')'
def __getitem__(self, idx): return self.__namedTypes[idx]
def __nonzero__(self):
if self.__namedTypes: return 1
else: return 0
def __len__(self): return len(self.__namedTypes)
def getTypeByPosition(self, idx):
try:
return self.__namedTypes[idx].getType()
except IndexError:
raise error.PyAsn1Error('Type position out of range')
def getPositionByType(self, tagSet):
if not self.__tagMap:
idx = len(self.__namedTypes)
while idx > 0:
idx = idx - 1
for t in self.__namedTypes[idx].getType().getTypeMap().keys():
if self.__tagMap.has_key(t):
raise error.PyAsn1Error('Duplicate type %s' % t)
self.__tagMap[t] = idx
try:
return self.__tagMap[tagSet]
except KeyError:
raise error.PyAsn1Error('Type %s not found' % tagSet)
def getNameByPosition(self, idx):
try:
return self.__namedTypes[idx].getName()
except IndexError:
raise error.PyAsn1Error('Type position out of range')
def getPositionByName(self, name):
if not self.__nameMap:
idx = len(self.__namedTypes)
while idx > 0:
idx = idx - 1
n = self.__namedTypes[idx].getName()
if self.__nameMap.has_key(n):
raise error.PyAsn1Error('Duplicate name %s' % n)
self.__nameMap[n] = idx
try:
return self.__nameMap[name]
except KeyError:
raise error.PyAsn1Error('Name %s not found' % name)
def __buildAmbigiousTagMap(self):
ambigiousTypes = ()
idx = len(self.__namedTypes)
while idx > 0:
idx = idx - 1
t = self.__namedTypes[idx]
if t.isOptional or t.isDefaulted:
ambigiousTypes = (t, ) + ambigiousTypes
else:
ambigiousTypes = (t, )
self.__ambigiousTypes[idx] = apply(NamedTypes, ambigiousTypes)
def getTypeMapNearPosition(self, idx):
if not self.__ambigiousTypes: self.__buildAmbigiousTagMap()
try:
return self.__ambigiousTypes[idx].getTypeMap()
except KeyError:
raise error.PyAsn1Error('Type position out of range')
def getPositionNearType(self, tagSet, idx):
if not self.__ambigiousTypes: self.__buildAmbigiousTagMap()
try:
return idx+self.__ambigiousTypes[idx].getPositionByType(tagSet)
except KeyError:
raise error.PyAsn1Error('Type position out of range')
def genMinTagSet(self):
if self.__minTagSet is None:
for t in self.__namedTypes:
__type = t.getType()
tagSet = getattr(__type,'getMinTagSet',__type.getTagSet)()
if self.__minTagSet is None or tagSet < self.__minTagSet:
self.__minTagSet = tagSet
return self.__minTagSet
def getTypeMap(self, uniq=None):
if not self.__typeMap:
for t in self.__namedTypes:
__type = t.getType()
typeMap = __type.getTypeMap()
if uniq:
for k in typeMap.keys():
if self.__typeMap.has_key(k):
raise error.PyAsn1Error(
'Duplicate type %s in map %s'%(k,self.__typeMap)
)
self.__typeMap[k] = __type
else:
for k in typeMap.keys():
self.__typeMap[k] = __type
return self.__typeMap
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