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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface nsIMsgIncomingServer;
interface nsISmtpServer;

/**
 * A listener callback for OAuth2 SASL authentication. This would be represented
 * as a promise, but this needs to be consumed by C++ code.
 */
[scriptable, uuid(9a088b49-bc13-4f99-9478-053a6a43e370)]
interface msgIOAuth2ModuleListener : nsISupports {
  /// Called on successful OAuth2 authentication with the bearer token to use.
  void onSuccess(in ACString aBearerToken);

  /// Called on failed OAuth2 authentication.
  void onFailure(in nsresult aError);
};

/**
 * An interface for managing the responsibilities of using OAuth2 to produce a
 * bearer token, for use in SASL steps.
 */
[scriptable, uuid(68c275f8-cfa7-4622-b279-af290616cae6)]
interface msgIOAuth2Module : nsISupports {
  /**
   * Initialize the OAuth2 parameters from an SMTP server, and return whether or
   * not we can authenticate with OAuth2.
   */
  bool initFromSmtp(in nsISmtpServer aSmtpServer);

  /**
   * Initialize the OAuth2 parameters from an incoming server, and return
   * whether or not we can authenticate with OAuth2.
   */
  bool initFromMail(in nsIMsgIncomingServer aServer);

  /**
   * Connect to the OAuth2 server to get an access token.
   * @param aWithUI   If false, do not allow a dialog to be popped up to query
   *                  for a password.
   * @param aCallback Listener that handles the async response.
   */
  void connect(in boolean aWithUI, in msgIOAuth2ModuleListener aCallback);

  /**
   * Return the base64-encoded string to send as the client initial response for
   * SASL XOAUTH2.
   */
  ACString buildXOAuth2String();
};

%{C++
#define MSGIOAUTH2MODULE_CONTRACTID "@mozilla.org/mail/oauth2-module;1"
%}