| // Copyright 2018 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 "components/offline_pages/core/auto_fetch.h" |
| |
| #include "base/strings/strcat.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_piece.h" |
| #include "components/offline_pages/core/client_namespace_constants.h" |
| |
| namespace offline_pages { |
| namespace auto_fetch { |
| ClientIdMetadata::ClientIdMetadata() = default; |
| ClientIdMetadata::ClientIdMetadata(const ClientIdMetadata&) = default; |
| |
| ClientId MakeClientId(const ClientIdMetadata& metadata) { |
| // Here, the 'A' prefix is used so that future versions can easily change the |
| // format if necessary. |
| return ClientId(kAutoAsyncNamespace, |
| base::StrCat({"A", std::to_string(metadata.android_tab_id)})); |
| } |
| |
| base::Optional<ClientIdMetadata> ExtractMetadata(const ClientId& id) { |
| if (id.name_space != kAutoAsyncNamespace) |
| return base::nullopt; |
| if (id.id.empty() || id.id[0] != 'A') |
| return base::nullopt; |
| ClientIdMetadata metadata; |
| if (!base::StringToInt(base::StringPiece(id.id).substr(1), |
| &metadata.android_tab_id)) |
| return base::nullopt; |
| return metadata; |
| } |
| |
| } // namespace auto_fetch |
| } // namespace offline_pages |