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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 "net/ssl/ssl_key_logger.h"
#include <stdio.h>
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/sequence_checker.h"
#include "base/sequenced_task_runner.h"
namespace net {
// An object which lives on the background SequencedTaskRunner and performs the
// blocking file operations.
class SSLKeyLogger::Core {
public:
Core() { sequence_checker_.DetachFromSequence(); }
~Core() { DCHECK(sequence_checker_.CalledOnValidSequencedThread()); }
void OpenFile(const base::FilePath& path) {
DCHECK(sequence_checker_.CalledOnValidSequencedThread());
DCHECK(!file_);
file_.reset(base::OpenFile(path, "a"));
if (!file_)
LOG(WARNING) << "Could not open " << path.value();
}
void WriteLine(const std::string& line) {
DCHECK(sequence_checker_.CalledOnValidSequencedThread());
if (!file_)
return;
fprintf(file_.get(), "%s\n", line.c_str());
fflush(file_.get());
}
private:
base::ScopedFILE file_;
base::SequenceChecker sequence_checker_;
DISALLOW_COPY_AND_ASSIGN(Core);
};
SSLKeyLogger::SSLKeyLogger(
const base::FilePath& path,
const scoped_refptr<base::SequencedTaskRunner>& task_runner)
: task_runner_(task_runner), core_(new Core) {
task_runner_->PostTask(
FROM_HERE,
base::Bind(&Core::OpenFile, base::Unretained(core_.get()), path));
}
SSLKeyLogger::~SSLKeyLogger() {
task_runner_->DeleteSoon(FROM_HERE, core_.release());
}
void SSLKeyLogger::WriteLine(const std::string& line) {
task_runner_->PostTask(
FROM_HERE,
base::Bind(&Core::WriteLine, base::Unretained(core_.get()), line));
}
} // namespace net
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