Release 1.21.0

[FEATURE] Add qlog log module.

tools/qlog-parser.py

@@ -0,0 +1,83 @@
+import time
+import json
+import re
+import argparse
+
+_ev_time = 0
+_ev_cate = 1
+_ev_type = 2
+_ev_trig = 3
+_ev_data = 4
+_conn_base = {
+    'qlog_version': '0.1',
+    'vantagepoint': 'NETWORK',
+    'connectionid': '0',
+    'starttime': '0',
+    'fields': [
+        'time',
+        'category',
+        'type',
+        'trigger',
+        'data',
+    ],
+    'events': [],
+}
+
+arg_parser = argparse.ArgumentParser(description='Test the ExploreParser.')
+arg_parser.add_argument('qlog_path', type=str, help='path to QLog file')
+args = arg_parser.parse_args()
+
+try:
+    with open(args.qlog_path, 'r') as file:
+        text = file.read()
+except IOError:
+    print('ERROR: QLog not found at given path.')
+
+events = {}
+event_times = {}
+start_time = {}
+
+qlog = {
+    'qlog_version': '0.1',
+    'description': 'test with local log file',
+    'connections': [],
+}
+
+lines = text.split('\n')
+for line in lines:
+    if 'qlog' in line:
+        i = line.find('[QUIC:')
+        j = line.find(']', i)
+        k = line.find('qlog: ')
+
+        cid = line[i+6:j]
+        try:
+            event = json.loads(line[k+6:])
+        except json.JSONDecodeError:
+            continue
+
+        if not cid in events:
+            events[cid] = [event]
+            event_times[cid] = [event[_ev_time]]
+        else:
+            events[cid].append(event)
+            event_times[cid].append(event[_ev_time])
+
+for cid, times in event_times.items():
+    new_events = []
+    start_time[cid] = min(times)
+    times = [t - min(times) for t in times]
+    for t, i in sorted(((t, i) for i, t in enumerate(times))):
+        events[cid][i][0] = t
+        new_events.append(events[cid][i])
+    events[cid] = new_events
+
+for cid, event_list in events.items():
+    conn = _conn_base.copy()
+    conn['connectionid'] = cid
+    conn['starttime'] = start_time[cid]
+    conn['events'] = event_list
+    qlog['connections'].append(conn)
+
+print(json.dumps(qlog, indent=2))
+