1// Copyright 2013 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 "content/shell/browser/shell_net_log.h"
6
7#include <stdio.h>
8
9#include "base/command_line.h"
10#include "base/files/file_path.h"
11#include "base/values.h"
12#include "content/public/common/content_switches.h"
13#include "net/base/net_log_logger.h"
14
15namespace content {
16
17namespace {
18
19base::DictionaryValue* GetShellConstants(const std::string& app_name) {
20  base::DictionaryValue* constants_dict = net::NetLogLogger::GetConstants();
21
22  // Add a dictionary with client information
23  base::DictionaryValue* dict = new base::DictionaryValue();
24
25  dict->SetString("name", app_name);
26  dict->SetString("command_line",
27                  CommandLine::ForCurrentProcess()->GetCommandLineString());
28
29  constants_dict->Set("clientInfo", dict);
30
31  return constants_dict;
32}
33
34}  // namespace
35
36ShellNetLog::ShellNetLog(const std::string& app_name) {
37  const CommandLine* command_line = CommandLine::ForCurrentProcess();
38
39  if (command_line->HasSwitch(switches::kLogNetLog)) {
40    base::FilePath log_path =
41        command_line->GetSwitchValuePath(switches::kLogNetLog);
42    // Much like logging.h, bypass threading restrictions by using fopen
43    // directly.  Have to write on a thread that's shutdown to handle events on
44    // shutdown properly, and posting events to another thread as they occur
45    // would result in an unbounded buffer size, so not much can be gained by
46    // doing this on another thread.  It's only used when debugging, so
47    // performance is not a big concern.
48    FILE* file = NULL;
49#if defined(OS_WIN)
50    file = _wfopen(log_path.value().c_str(), L"w");
51#elif defined(OS_POSIX)
52    file = fopen(log_path.value().c_str(), "w");
53#endif
54
55    if (file == NULL) {
56      LOG(ERROR) << "Could not open file " << log_path.value()
57                 << " for net logging";
58    } else {
59      scoped_ptr<base::Value> constants(GetShellConstants(app_name));
60      net_log_logger_.reset(new net::NetLogLogger(file, *constants));
61      net_log_logger_->StartObserving(this);
62    }
63  }
64}
65
66ShellNetLog::~ShellNetLog() {
67  // Remove the observer we own before we're destroyed.
68  if (net_log_logger_)
69    RemoveThreadSafeObserver(net_log_logger_.get());
70}
71
72}  // namespace content
73