1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/net/net_log_logger.h"
6
7 #include <stdio.h>
8
9 #include "base/file_util.h"
10 #include "base/json/json_writer.h"
11 #include "base/threading/thread_restrictions.h"
12 #include "base/values.h"
13
NetLogLogger(const FilePath & log_path)14 NetLogLogger::NetLogLogger(const FilePath &log_path)
15 : ThreadSafeObserver(net::NetLog::LOG_ALL_BUT_BYTES) {
16 if (!log_path.empty()) {
17 base::ThreadRestrictions::ScopedAllowIO allow_io;
18 file_.Set(file_util::OpenFile(log_path, "w"));
19 }
20 }
21
~NetLogLogger()22 NetLogLogger::~NetLogLogger() {}
23
OnAddEntry(net::NetLog::EventType type,const base::TimeTicks & time,const net::NetLog::Source & source,net::NetLog::EventPhase phase,net::NetLog::EventParameters * params)24 void NetLogLogger::OnAddEntry(net::NetLog::EventType type,
25 const base::TimeTicks& time,
26 const net::NetLog::Source& source,
27 net::NetLog::EventPhase phase,
28 net::NetLog::EventParameters* params) {
29 scoped_ptr<Value> value(net::NetLog::EntryToDictionaryValue(type, time,
30 source, phase,
31 params, true));
32 // Don't pretty print, so each JSON value occupies a single line, with no
33 // breaks (Line breaks in any text field will be escaped). Using strings
34 // instead of integer identifiers allows logs from older versions to be
35 // loaded, though a little extra parsing has to be done when loading a log.
36 std::string json;
37 base::JSONWriter::Write(value.get(), false, &json);
38 if (!file_.get()) {
39 VLOG(1) << json;
40 } else {
41 fprintf(file_.get(), "%s\n", json.c_str());
42 }
43 }
44
45