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
15 namespace content {
16
17 namespace {
18
GetShellConstants(const std::string & app_name)19 base::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
ShellNetLog(const std::string & app_name)36 ShellNetLog::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
~ShellNetLog()66 ShellNetLog::~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