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73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
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// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/ssl/ssl_key_logger.h"
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#include <stdio.h>
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#include "base/bind.h"
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#include "base/files/file_util.h"
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#include "base/files/scoped_file.h"
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#include "base/location.h"
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#include "base/logging.h"
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#include "base/macros.h"
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#include "base/sequence_checker.h"
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#include "base/sequenced_task_runner.h"
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#include "base/task_scheduler/post_task.h"
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#include "base/task_scheduler/task_traits.h"
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namespace net {
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// An object which lives on the background SequencedTaskRunner and performs the
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// blocking file operations.
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class SSLKeyLogger::Core {
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public:
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Core() { DETACH_FROM_SEQUENCE(sequence_checker_); }
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~Core() { DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_); }
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void OpenFile(const base::FilePath& path) {
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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DCHECK(!file_);
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file_.reset(base::OpenFile(path, "a"));
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if (!file_)
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LOG(WARNING) << "Could not open " << path.value();
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}
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void WriteLine(const std::string& line) {
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DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
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if (!file_)
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return;
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fprintf(file_.get(), "%s\n", line.c_str());
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fflush(file_.get());
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}
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private:
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base::ScopedFILE file_;
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SEQUENCE_CHECKER(sequence_checker_);
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DISALLOW_COPY_AND_ASSIGN(Core);
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};
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SSLKeyLogger::SSLKeyLogger(const base::FilePath& path) : core_(new Core) {
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// The user explicitly asked for debugging information, so these tasks block
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// shutdown to avoid dropping some log entries.
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task_runner_ = base::CreateSequencedTaskRunnerWithTraits(
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{base::MayBlock(), base::TaskShutdownBehavior::BLOCK_SHUTDOWN});
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task_runner_->PostTask(
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FROM_HERE,
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base::Bind(&Core::OpenFile, base::Unretained(core_.get()), path));
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}
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SSLKeyLogger::~SSLKeyLogger() {
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task_runner_->DeleteSoon(FROM_HERE, core_.release());
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}
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void SSLKeyLogger::WriteLine(const std::string& line) {
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task_runner_->PostTask(
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FROM_HERE,
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base::Bind(&Core::WriteLine, base::Unretained(core_.get()), line));
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}
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} // namespace net
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