| // 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 CHROME_BROWSER_NEARBY_SHARING_TACHYON_ICE_CONFIG_FETCHER_H_ |
| #define CHROME_BROWSER_NEARBY_SHARING_TACHYON_ICE_CONFIG_FETCHER_H_ |
| |
| #include "base/functional/callback_forward.h" |
| #include "base/memory/raw_ptr.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/time/time.h" |
| #include "chromeos/ash/services/nearby/public/mojom/webrtc.mojom.h" |
| #include "components/signin/public/identity_manager/access_token_info.h" |
| #include "components/signin/public/identity_manager/identity_manager.h" |
| #include "google_apis/gaia/google_service_auth_error.h" |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| |
| namespace network { |
| class SharedURLLoaderFactory; |
| } // namespace network |
| |
| // Fetches a list of ICE servers using the Tachyon API. The lifetime of this |
| // class is expected to span multiple requests, and the most recently fetched |
| // ICE servers are cached in a private member variable. |
| class TachyonIceConfigFetcher : public sharing::mojom::IceConfigFetcher { |
| public: |
| TachyonIceConfigFetcher( |
| signin::IdentityManager* identity_manager, |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory); |
| ~TachyonIceConfigFetcher() override; |
| |
| TachyonIceConfigFetcher(const TachyonIceConfigFetcher& other) = delete; |
| TachyonIceConfigFetcher& operator=(const TachyonIceConfigFetcher& other) = |
| delete; |
| |
| // sharing::mojom::IceConfigFetcher |
| void GetIceServers(GetIceServersCallback callback) override; |
| |
| private: |
| void GetIceServersWithToken(GetIceServersCallback callback, |
| const std::string& token); |
| |
| void OnIceServersResponse( |
| sharing::mojom::IceConfigFetcher::GetIceServersCallback callback, |
| const std::string& request_id, |
| std::unique_ptr<network::SimpleURLLoader> url_loader, |
| std::unique_ptr<std::string> response_body); |
| |
| // Parses the |GetIceServerResponse| proto provided by the Tachyon server and |
| // caches a copy of the parsed result before returning it. Returns an empty |
| // vector if parsing is unsuccessful. The |request_id| is for logging |
| // purposes. |
| std::vector<sharing::mojom::IceServerPtr> ParseIceServersResponse( |
| const std::string& serialized_proto, |
| const std::string& request_id); |
| |
| raw_ptr<signin::IdentityManager, ExperimentalAsh> identity_manager_; |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_; |
| |
| // Cache the last retrieved ICE servers. |
| absl::optional<std::vector<sharing::mojom::IceServerPtr>> ice_server_cache_; |
| base::Time ice_server_cache_expiration_; |
| |
| base::WeakPtrFactory<TachyonIceConfigFetcher> weak_ptr_factory_{this}; |
| }; |
| |
| #endif // CHROME_BROWSER_NEARBY_SHARING_TACHYON_ICE_CONFIG_FETCHER_H_ |