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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromecast/browser/cast_net_log.h"
#include <stdio.h>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/scoped_file.h"
#include "base/values.h"
#include "content/public/common/content_switches.h"
#include "net/log/net_log_util.h"
#include "net/log/write_to_file_net_log_observer.h"
namespace chromecast {
namespace {
base::DictionaryValue* GetShellConstants() {
scoped_ptr<base::DictionaryValue> constants_dict = net::GetNetConstants();
// Add a dictionary with client information
base::DictionaryValue* dict = new base::DictionaryValue();
dict->SetString("name", "cast_shell");
dict->SetString(
"command_line",
base::CommandLine::ForCurrentProcess()->GetCommandLineString());
constants_dict->Set("clientInfo", dict);
return constants_dict.release();
}
} // namespace
CastNetLog::CastNetLog() {
// TODO(derekjchow): This code is virtually identical to ShellNetLog which is
// nearly identical to code in ChromeNetLog. Consider merging the code.
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kLogNetLog)) {
base::FilePath log_path =
command_line->GetSwitchValuePath(switches::kLogNetLog);
// Much like logging.h, bypass threading restrictions by using fopen
// directly. Have to write on a thread that's shutdown to handle events on
// shutdown properly, and posting events to another thread as they occur
// would result in an unbounded buffer size, so not much can be gained by
// doing this on another thread. It's only used when debugging, so
// performance is not a big concern.
base::ScopedFILE file;
file.reset(fopen(log_path.value().c_str(), "w"));
if (!file) {
LOG(ERROR) << "Could not open file " << log_path.value()
<< " for net logging";
} else {
scoped_ptr<base::Value> constants(GetShellConstants());
write_to_file_observer_.reset(new net::WriteToFileNetLogObserver());
write_to_file_observer_->StartObserving(this, file.Pass(),
constants.get(), nullptr);
}
}
}
CastNetLog::~CastNetLog() {
// Remove the observer we own before we're destroyed.
if (write_to_file_observer_)
write_to_file_observer_->StopObserving(nullptr);
}
} // namespace chromecast
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