HAR convert script

utils/convert-har.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+"""Converts from Chrome's HAR log format to a shortened TSV.
+
+Used for determining services hit during Santa requests. Reads the
+x-google-service response header.
+
+Usage:
+./convert-har.py < src.json > out.tsv
+"""
+
+import sys
+import json
+import time
+import datetime
+
+data = json.loads(sys.stdin.read())
+
+entries = data['log']['entries']
+
+def responseHeader(e, name):
+    for header in e['response']['headers']:
+        if header['name'].lower() == name.lower():
+            return header['value']
+    return ''
+
+startTime = None  # store so delta from first request can be printed
+
+for e in entries:
+    st = time.strptime(e['startedDateTime'], '%Y-%m-%dT%H:%M:%S.%fZ')
+    now = time.mktime(st)
+
+    if startTime is None:
+        startTime = now
+
+    now = int(now - startTime) 
+    delta = datetime.timedelta(seconds=now)
+
+    parts = [e['startedDateTime'], delta, e['request']['url'], responseHeader(e, 'x-google-service'), 1]
+    print('\t'.join([str(p) for p in parts]))