components/invalidation/impl/profile_identity_provider.cc

// Copyright 2014 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/invalidation/impl/profile_identity_provider.h"

#include "components/invalidation/public/active_account_access_token_fetcher_impl.h"

namespace invalidation {

namespace {

// ActiveAccountAccessTokenFetcher implementation that is backed by
// IdentityManager and wraps an AccessTokenFetcher internally.
class AccessTokenFetcherAdaptor : public ActiveAccountAccessTokenFetcher {
 public:
  AccessTokenFetcherAdaptor(const std::string& active_account_id,
                            const std::string& oauth_consumer_name,
                            identity::IdentityManager* identity_manager,
                            const identity::ScopeSet& scopes,
                            ActiveAccountAccessTokenCallback callback);
  ~AccessTokenFetcherAdaptor() override = default;

 private:
  // Invokes |callback_| with (|error|, |access_token_info.token|).
  void HandleTokenRequestCompletion(
      GoogleServiceAuthError error,
      identity::AccessTokenInfo access_token_info);

  ActiveAccountAccessTokenCallback callback_;
  std::unique_ptr<identity::AccessTokenFetcher> access_token_fetcher_;

  DISALLOW_COPY_AND_ASSIGN(AccessTokenFetcherAdaptor);
};

AccessTokenFetcherAdaptor::AccessTokenFetcherAdaptor(
    const std::string& active_account_id,
    const std::string& oauth_consumer_name,
    identity::IdentityManager* identity_manager,
    const identity::ScopeSet& scopes,
    ActiveAccountAccessTokenCallback callback)
    : callback_(std::move(callback)) {
  access_token_fetcher_ = identity_manager->CreateAccessTokenFetcherForAccount(
      active_account_id, oauth_consumer_name, scopes,
      base::BindOnce(&AccessTokenFetcherAdaptor::HandleTokenRequestCompletion,
                     base::Unretained(this)),
      identity::AccessTokenFetcher::Mode::kImmediate);
}

void AccessTokenFetcherAdaptor::HandleTokenRequestCompletion(
    GoogleServiceAuthError error,
    identity::AccessTokenInfo access_token_info) {
  access_token_fetcher_.reset();

  std::move(callback_).Run(error, access_token_info.token);
}

}  // namespace

ProfileIdentityProvider::ProfileIdentityProvider(
    identity::IdentityManager* identity_manager)
    : identity_manager_(identity_manager) {
  identity_manager_->AddObserver(this);
}

ProfileIdentityProvider::~ProfileIdentityProvider() {
  identity_manager_->RemoveObserver(this);
}

std::string ProfileIdentityProvider::GetActiveAccountId() {
  return active_account_id_;
}

bool ProfileIdentityProvider::IsActiveAccountAvailable() {
  if (GetActiveAccountId().empty() || !identity_manager_ ||
      !identity_manager_->HasAccountWithRefreshToken(GetActiveAccountId()))
    return false;

  return true;
}

void ProfileIdentityProvider::SetActiveAccountId(
    const std::string& account_id) {
  if (account_id == active_account_id_)
    return;

  if (!active_account_id_.empty())
    FireOnActiveAccountLogout();

  active_account_id_ = account_id;
  if (!active_account_id_.empty())
    FireOnActiveAccountLogin();
}

std::unique_ptr<ActiveAccountAccessTokenFetcher>
ProfileIdentityProvider::FetchAccessToken(
    const std::string& oauth_consumer_name,
    const identity::ScopeSet& scopes,
    ActiveAccountAccessTokenCallback callback) {
  return std::make_unique<AccessTokenFetcherAdaptor>(
      GetActiveAccountId(), oauth_consumer_name, identity_manager_, scopes,
      std::move(callback));
}

void ProfileIdentityProvider::InvalidateAccessToken(
    const identity::ScopeSet& scopes,
    const std::string& access_token) {
  identity_manager_->RemoveAccessTokenFromCache(GetActiveAccountId(), scopes,
                                                access_token);
}

void ProfileIdentityProvider::OnRefreshTokenUpdatedForAccount(
    const AccountInfo& account_info) {
  ProcessRefreshTokenUpdateForAccount(account_info.account_id);
}

void ProfileIdentityProvider::OnRefreshTokenRemovedForAccount(
    const std::string& account_id) {
  ProcessRefreshTokenRemovalForAccount(account_id);
}

}  // namespace invalidation