Add python code to test the JSON schema. Works.

Added testdata/

.gitignore

@@ -0,0 +1,2 @@
+*.swp
+

example_code/python/README.md

@@ -3,4 +3,9 @@
 This little package can parse the Passive DNS Common Output Format (COF) and validate it.
 It is given as example code.
 
+  * cofparser.py ... a manually written parser for the COF format
+  * cofparser_jsonschema.py .... one which uses the JSON schema to validate.
+
+
+
 

example_code/python/cofparser_jsonschema.py

@@ -0,0 +1,37 @@
+import sys
+import json
+import jsonschema
+from jsonschema import validate
+
+
+def get_schema(filename):
+    """This function loads the given schema available"""
+    with open(filename, 'r') as file:
+        schema = json.load(file)
+    return schema
+
+
+def validate_json(json_data, schema=None):
+    """REF: https://json-schema.org/ """
+
+    try:
+        validate(instance=json_data, schema=schema)
+    except jsonschema.exceptions.ValidationError as err:
+        print(err)
+        err = "Given JSON data is InValid"
+        return False, err
+
+    message = "Given JSON data is Valid"
+    return True, message
+
+
+if __name__ == "__main__":
+    schema = get_schema("schema/schema.json")
+
+    # Convert json to python object.
+    with open(sys.argv[1], 'r') as ndjson_file:
+        for line in ndjson_file:
+            jsonData = json.loads(line)
+            # validate it
+            is_valid, msg = validate_json(jsonData, schema=schema)
+            print(msg)

example_code/testdata/data.json

@@ -0,0 +1,2 @@
+{"count":1909,"rdata":["cpa.circl.lu"],"rrname":"www.circl.lu","rrtype":"CNAME","time_first":1315586409,"time_last":1449566799}
+{"count":2560,"rdata":["cpab.circl.lu"],"rrname":"www.circl.lu","rrtype":"CNAME","time_first":1449584660,"time_last":1617676151}