new: [api] namespace API access added

You can do queries like:

- http://127.0.0.1:5000/namespace/finduuid/mitre-attack-id/T1589.003

and also list the known namespaces of the CyCAT instance.

curl -X 'GET' \
  'http://127.0.0.1:5000/namespace/getall' \
    -H 'accept: application/json'

and get

[
  "capec",
  "mitre-attack-id"
]

backend/bin/server.py

@@ -33,6 +33,7 @@ class info(Resource):
         info['publishers'] = r.zcard('t:1')
         info['projects'] = r.zcard('t:2')
         info['items'] = r.zcard('t:3')
+        info['namespaces'] = r.scard('idnamespace')
         info['version'] = version
         return info
 
@@ -139,6 +140,32 @@ class relationshipsexpanded(Resource):
         else:
             return {'message': 'UUID is incorrect'}, 400
 
+@api.route('/namespace/getall')
+@api.doc(description="List all known namespaces.")
+class namespacegetall(Resource):
+    def get(self):
+        s = r.smembers("idnamespace")
+        return(list(s))
+
+@api.route('/namespace/getid/<string:namespace>')
+@api.doc(description="Get all ID from a given namespace.")
+class namespacegetid(Resource):
+    def get(self, namespace=None):
+        if namespace is None:
+            return None
+        k = "idk:{}".format(namespace)
+        s = r.smembers(k)
+        return(list(s))
+
+@api.route('/namespace/finduuid/<string:namespace>/<string:namespaceid>')
+@api.doc(description="Get all known UUID for a given namespace id.")
+class namespacefinduuid(Resource):
+    def get(self, namespace=None, namespaceid=None):
+        if namespaceid is None or namespace is None:
+            return None
+        k = "id:{}:{}".format(namespace, namespaceid)
+        s = r.smembers(k)
+        return(list(s))
 
 if __name__ == '__main__':
     app.run()

crawler/mitre-cti/cti-importer.py

@@ -48,6 +48,7 @@ def addexternalid(uuidsource=None, namespace=None, namespaceid=None):
     rdb.sadd(k, uuidsource)
     k = "idk:{}".format(namespace)
     rdb.sadd(k, namespaceid)
+    rdb.sadd("idnamespace", namespace)
 
 models = ['enterprise-attack', 'mobile-attack', 'ics-attack', 'pre-attack']