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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/update_client/puffin_patcher.h"
#include <string>
#include <utility>
#include "base/bind.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "base/task/task_runner.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "components/update_client/component_patcher_operation.h"
#include "components/update_client/patcher.h"
#include "components/update_client/update_client.h"
#include "components/update_client/update_client_errors.h"
#include "third_party/puffin/puffin/src/include/puffin/puffpatch.h"
namespace update_client {
PuffinPatcher::PuffinPatcher(
base::File old_crx_file,
base::File puff_patch_file,
base::File new_crx_output,
scoped_refptr<Patcher> patcher,
base::OnceCallback<void(UnpackerError, int)> callback)
: old_crx_file_(std::move(old_crx_file)),
puff_patch_file_(std::move(puff_patch_file)),
new_crx_output_file_(std::move(new_crx_output)),
patcher_(patcher),
callback_(std::move(callback)) {}
PuffinPatcher::~PuffinPatcher() = default;
void PuffinPatcher::Patch(
base::File old_crx_file,
base::File puff_patch_file,
base::File new_crx_output,
scoped_refptr<Patcher> patcher,
base::OnceCallback<void(UnpackerError, int)> callback) {
scoped_refptr<PuffinPatcher> puffin_patcher =
base::WrapRefCounted(new PuffinPatcher(
std::move(old_crx_file), std::move(puff_patch_file),
std::move(new_crx_output), patcher, std::move(callback)));
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(&PuffinPatcher::StartPatching, puffin_patcher));
}
void PuffinPatcher::StartPatching() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!old_crx_file_.IsValid()) {
DonePatching(UnpackerError::kInvalidParams, 0);
} else if (!puff_patch_file_.IsValid()) {
DonePatching(UnpackerError::kInvalidParams, 0);
} else if (!new_crx_output_file_.IsValid()) {
DonePatching(UnpackerError::kInvalidParams, 0);
} else {
PatchCrx();
}
}
void PuffinPatcher::PatchCrx() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
patcher_->PatchPuffPatch(std::move(old_crx_file_),
std::move(puff_patch_file_),
std::move(new_crx_output_file_),
base::BindOnce(&PuffinPatcher::DonePatch, this));
}
void PuffinPatcher::DonePatch(int extended_error) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (extended_error != puffin::P_OK) {
DonePatching(UnpackerError::kDeltaOperationFailure, extended_error);
} else {
DonePatching(UnpackerError::kNone, 0);
}
}
void PuffinPatcher::DonePatching(UnpackerError error, int extended_error) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DETACH_FROM_SEQUENCE(sequence_checker_);
std::move(callback_).Run(error, extended_error);
}
} // namespace update_client
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