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content / browser / file_system_access / file_system_access_safe_move_helper.h [blame]
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_SAFE_MOVE_HELPER_H_
#define CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_SAFE_MOVE_HELPER_H_
#include "base/files/file.h"
#include "base/sequence_checker.h"
#include "base/thread_annotations.h"
#include "components/download/public/common/quarantine_connection.h"
#include "content/browser/file_system_access/file_system_access_manager_impl.h"
#include "content/common/content_export.h"
#include "storage/browser/file_system/file_system_url.h"
namespace content {
// TODO(crbug.com/40198034): Support safely moving directories. For now, this
// class only supports moving files. Moving directories will require running
// safe browsing checks on all files before moving.
//
// Helper class which moves files (and eventually directories). Safe browsing
// checks are performed and the mark of the web is added for certain file system
// types, as appropriate.
class CONTENT_EXPORT FileSystemAccessSafeMoveHelper {
public:
using FileSystemAccessSafeMoveHelperCallback =
base::OnceCallback<void(blink::mojom::FileSystemAccessErrorPtr)>;
FileSystemAccessSafeMoveHelper(
base::WeakPtr<FileSystemAccessManagerImpl> manager,
const FileSystemAccessManagerImpl::BindingContext& context,
const storage::FileSystemURL& source_url,
const storage::FileSystemURL& dest_url,
storage::FileSystemOperation::CopyOrMoveOptionSet options,
download::QuarantineConnectionCallback quarantine_connection_callback,
bool has_transient_user_activation);
FileSystemAccessSafeMoveHelper(const FileSystemAccessSafeMoveHelper&) =
delete;
FileSystemAccessSafeMoveHelper& operator=(
const FileSystemAccessSafeMoveHelper&) = delete;
~FileSystemAccessSafeMoveHelper();
void Start(FileSystemAccessSafeMoveHelperCallback callback);
const storage::FileSystemURL& source_url() const { return source_url_; }
const storage::FileSystemURL& dest_url() const { return dest_url_; }
using HashCallback = base::OnceCallback<
void(base::File::Error error, const std::string& hash, int64_t size)>;
void ComputeHashForSourceFileForTesting(HashCallback callback) {
ComputeHashForSourceFile(std::move(callback));
}
bool RequireAfterWriteChecksForTesting() const {
return RequireAfterWriteChecks();
}
bool RequireQuarantineForTesting() const { return RequireQuarantine(); }
private:
SEQUENCE_CHECKER(sequence_checker_);
void DoAfterWriteCheck(base::File::Error hash_result,
const std::string& hash,
int64_t size);
void DidAfterWriteCheck(
FileSystemAccessPermissionContext::AfterWriteCheckResult result);
void DidFileSkipQuarantine(base::File::Error result);
void DidFileDoQuarantine(
const storage::FileSystemURL& target_url,
const GURL& referrer_url,
mojo::Remote<quarantine::mojom::Quarantine> quarantine_remote,
base::File::Error result);
void DidAnnotateFile(
mojo::Remote<quarantine::mojom::Quarantine> quarantine_remote,
quarantine::mojom::QuarantineFileResult result);
void ComputeHashForSourceFile(HashCallback callback);
// Safe browsing should apply to paths on all filesystems
// except temporary file systems, or for same-file-system moves in which the
// extension does not change.
bool RequireAfterWriteChecks() const;
// Quarantine checks should apply to paths on all filesystems except temporary
// file systems.
bool RequireQuarantine() const;
base::WeakPtr<FileSystemAccessManagerImpl> manager_
GUARDED_BY_CONTEXT(sequence_checker_);
FileSystemAccessManagerImpl::BindingContext context_
GUARDED_BY_CONTEXT(sequence_checker_);
const storage::FileSystemURL source_url_;
const storage::FileSystemURL dest_url_;
const storage::FileSystemOperation::CopyOrMoveOptionSet options_;
download::QuarantineConnectionCallback quarantine_connection_callback_
GUARDED_BY_CONTEXT(sequence_checker_);
bool has_transient_user_activation_ GUARDED_BY_CONTEXT(sequence_checker_) =
false;
FileSystemAccessSafeMoveHelperCallback callback_
GUARDED_BY_CONTEXT(sequence_checker_);
base::WeakPtrFactory<FileSystemAccessSafeMoveHelper> weak_factory_
GUARDED_BY_CONTEXT(sequence_checker_){this};
};
} // namespace content
#endif // CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_SAFE_MOVE_HELPER_H_