oauth_auth_credential.h

/*
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef FIREBASE_AUTH_SRC_DESKTOP_AUTH_PROVIDERS_OAUTH_AUTH_CREDENTIAL_H_
#define FIREBASE_AUTH_SRC_DESKTOP_AUTH_PROVIDERS_OAUTH_AUTH_CREDENTIAL_H_

#include <memory>

#include "app/src/include/firebase/app.h"
#include "auth/src/desktop/auth_constants.h"
#include "auth/src/desktop/identity_provider_credential.h"
#include "auth/src/desktop/rpcs/verify_assertion_request.h"

namespace firebase {
namespace auth {

class OAuthProvider;

class OAuthCredential : public IdentityProviderCredential {
 public:
  std::string GetProvider() const override { return provider_id_; }

  std::unique_ptr<VerifyAssertionRequest> CreateVerifyAssertionRequest(
      ::firebase::App& app, const char* const api_key,
      const char* tenant_id) const override {
    const char* raw_nonce =
        (!raw_nonce_.empty()) ? raw_nonce_.c_str() : nullptr;
    if (!id_token_.empty()) {
      return VerifyAssertionRequest::FromIdToken(
          app, api_key, provider_id_.c_str(), id_token_.c_str(), raw_nonce,
          tenant_id);
    } else {
      return VerifyAssertionRequest::FromAccessToken(
          app, api_key, provider_id_.c_str(), access_token_.c_str(), raw_nonce,
          tenant_id);
    }
  }

 private:
  OAuthCredential(const std::string& provider_id, const std::string& id_token,
                  const std::string& raw_nonce, const std::string& access_token)
      : provider_id_(provider_id),
        id_token_(id_token),
        raw_nonce_(raw_nonce),
        access_token_(access_token) {}

  const std::string provider_id_;
  const std::string id_token_;
  const std::string raw_nonce_;
  const std::string access_token_;

  friend class OAuthProvider;
};

}  // namespace auth
}  // namespace firebase

#endif  // FIREBASE_AUTH_SRC_DESKTOP_AUTH_PROVIDERS_OAUTH_AUTH_CREDENTIAL_H_