Add google-endpoints to third_party/.

third_party/google-endpoints/pyasn1_modules/rfc2314.py

+#
+# PKCS#10 syntax
+#
+# ASN.1 source from:
+# http://tools.ietf.org/html/rfc2314
+#
+# Sample captures could be obtained with "openssl req" command
+#
+from pyasn1.type import tag, namedtype, namedval, univ, constraint
+from pyasn1_modules.rfc2459 import *
+
+class Attributes(univ.SetOf):
+    componentType = Attribute()
+
+class Version(univ.Integer): pass
+
+class CertificationRequestInfo(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('version', Version()),
+        namedtype.NamedType('subject', Name()),
+        namedtype.NamedType('subjectPublicKeyInfo', SubjectPublicKeyInfo()),
+        namedtype.NamedType('attributes', Attributes().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)))
+    )
+
+class Signature(univ.BitString): pass
+class SignatureAlgorithmIdentifier(AlgorithmIdentifier): pass
+
+class CertificationRequest(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('certificationRequestInfo', CertificationRequestInfo()),
+        namedtype.NamedType('signatureAlgorithm', SignatureAlgorithmIdentifier()),
+        namedtype.NamedType('signature', Signature())
+    )