diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/x509/oid.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/cryptography/x509/oid.py b/src/cryptography/x509/oid.py index ead40169..27fab86b 100644 --- a/src/cryptography/x509/oid.py +++ b/src/cryptography/x509/oid.py @@ -12,6 +12,35 @@ class ObjectIdentifier(object): def __init__(self, dotted_string): self._dotted_string = dotted_string + nodes = self._dotted_string.split(".") + intnodes = [] + + # There must be at least 2 nodes, the first node must be 0..2, and + # if less than 2, the second node cannot have a value outside the + # range 0..39. All nodes must be integers. + for node in nodes: + try: + intnodes.append(int(node, 0)) + except ValueError: + raise ValueError( + "Malformed OID: %s (non-integer nodes)" % ( + self._dotted_string)) + + if len(nodes) < 2: + raise ValueError( + "Malformed OID: %s (insufficient number of nodes)" % ( + self._dotted_string)) + + if intnodes[0] > 2: + raise ValueError( + "Malformed OID: %s (first node outside valid range)" % ( + self._dotted_string)) + + if intnodes[0] < 2 and intnodes[1] >= 40: + raise ValueError( + "Malformed OID: %s (second node outside valid range)" % ( + self._dotted_string)) + def __eq__(self, other): if not isinstance(other, ObjectIdentifier): return NotImplemented |