public async Task <HttpResponseMessage> OAuthCallback([FromUri] string userId, [FromUri] string botId, [FromUri] string conversationId, [FromUri] string channelId, [FromUri] string serviceUrl, [FromUri] string code, [FromUri] string state, CancellationToken token)
{
// Get the resumption cookie
var address = new Address
(
// purposefully using named arguments because these all have the same type
botId: FacebookHelpers.TokenDecoder(botId),
channelId: channelId,
userId: FacebookHelpers.TokenDecoder(userId),
conversationId: FacebookHelpers.TokenDecoder(conversationId),
serviceUrl: FacebookHelpers.TokenDecoder(serviceUrl)
);
var conversationReference = address.ToConversationReference();
// Exchange the Facebook Auth code with Access token
var accessToken = await FacebookHelpers.ExchangeCodeForAccessToken(conversationReference, code, SimpleFacebookAuthDialog.FacebookOauthCallback.ToString());
//Set the User Token, Magic Number and IsValidated Property to User Properties.
conversationReference.User.Properties.Add(ConfigurationManager.AppSettings["FBAccessTokenKey"].ToString(), accessToken.AccessToken);
conversationReference.User.Properties.Add(ConfigurationManager.AppSettings["FBMagicNumberKey"].ToString(), ConfigurationManager.AppSettings["FBMagicNumberValue"].ToString());
conversationReference.User.Properties.Add(ConfigurationManager.AppSettings["FBIsValidatedKey"].ToString(), false);
// Create the message that is send to conversation to resume the login flow
var msg = conversationReference.GetPostToBotMessage();
msg.Text = $"token:{accessToken.AccessToken}";
// Resume the conversation to SimpleFacebookAuthDialog
using (var scope = DialogModule.BeginLifetimeScope(Conversation.Container, msg))
{
var dataBag = scope.Resolve <IBotData>();
await dataBag.LoadAsync(token);
ConversationReference pending;
var connector = new ConnectorClient(new Uri(conversationReference.ServiceUrl));
if (dataBag.PrivateConversationData.TryGetValue("persistedCookie", out pending))
{
dataBag.PrivateConversationData.SetValue("persistedCookie", conversationReference);
await dataBag.FlushAsync(token);
//Send message to Bot
IMessageActivity message = Activity.CreateMessageActivity();
message.From = conversationReference.User;
message.Recipient = conversationReference.User;
message.Conversation = new ConversationAccount(id: conversationReference.Conversation.Id);
message.Text = Strings.OAuthCallbackUserPrompt;
await connector.Conversations.SendToConversationAsync((Activity)message);
return(Request.CreateResponse(Strings.OAuthCallbackMessage));
}
else
{
// Callback is called with no pending message as a result the login flow cannot be resumed.
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, new InvalidOperationException(Strings.AuthCallbackResumeError)));
}
}
}
public async virtual Task MessageReceivedAsync(IDialogContext context, IAwaitable <IMessageActivity> argument)
{
var msg = await(argument);
ConversationReference conversationReference;
FacebookAcessToken facebookToken = new FacebookAcessToken();
string magicNumber = string.Empty;
string token = string.Empty;
if (context.PrivateConversationData.TryGetValue("persistedCookie", out conversationReference))
{
magicNumber = conversationReference.User.Properties[ConfigurationManager.AppSettings["FBMagicNumberKey"].ToString()].ToString();
if (string.Equals(msg.Text, magicNumber))
{
conversationReference.User.Properties[ConfigurationManager.AppSettings["FBIsValidatedKey"].ToString()] = true;
context.PrivateConversationData.SetValue("persistedCookie", conversationReference);
token = conversationReference.User.Properties[ConfigurationManager.AppSettings["FBAccessTokenKey"].ToString()].ToString();
var valid = await FacebookHelpers.ValidateAccessToken(token);
if (valid)
{
FacebookProfile profile = await FacebookHelpers.GetFacebookProfileName(token);
var message = CreateFBMessage(context, profile);
await context.PostAsync(message);
await context.PostAsync(Strings.FBLginSuccessPromptLogoutInfo);
context.PrivateConversationData.SetValue(AuthTokenKey, token);
context.Done(token);
}
}
else
{
//When entered number is not valid
await context.PostAsync(Strings.AuthMagicNumberNotMacthed);
await LogIn(context);
}
}
else
{
await LogIn(context);
}
}
private async Task <DialogTurnResult> LoginStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
// Getting the token from the previous step.
var tokenResponse = (TokenResponse)stepContext.Result;
if (tokenResponse?.Token != null)
{
// Getting basic facebook profile details.
FacebookProfile profile = await FacebookHelpers.GetFacebookProfileName(tokenResponse.Token);
var message = CreateFBMessage(stepContext, profile);
await stepContext.Context.SendActivityAsync(message);
return(await stepContext.PromptAsync(nameof(ConfirmPrompt), new PromptOptions { Prompt = MessageFactory.Text("Would you like to view your token?") }, cancellationToken));
}
await stepContext.Context.SendActivityAsync(MessageFactory.Text("Login was not successful please try again."), cancellationToken);
return(await stepContext.EndDialogAsync(cancellationToken : cancellationToken));
}
/// <summary>
/// Login the user.
/// </summary>
/// <param name="context"> The Dialog context.</param>
/// <returns> A task that represents the login action.</returns>
private async Task LogIn(IDialogContext context)
{
string token;
if (!context.PrivateConversationData.TryGetValue(AuthTokenKey, out token))
{
var conversationReference = context.Activity.ToConversationReference();
context.PrivateConversationData.SetValue("persistedCookie", conversationReference);
// sending the sigin card with Facebook login url
var reply = context.MakeMessage();
var fbLoginUrl = FacebookHelpers.GetFacebookLoginURL(conversationReference, FacebookOauthCallback.ToString());
reply.Text = Strings.FBLoginTitle;
//Login Card
var loginCard = new HeroCard
{
Title = Strings.FBLoginCardPrompt,
Buttons = new List <CardAction> {
new CardAction(ActionTypes.OpenUrl, Strings.FBLoginCardButtonCaption, value: fbLoginUrl)
}
};
reply.Attachments.Add(loginCard.ToAttachment());
await context.PostAsync(reply);
context.Wait(MessageReceivedAsync);
}
else
{
await context.PostAsync(Strings.FBLoginSessionExistsPrompt);
await context.PostAsync(Strings.FBLogoutPrompt);
context.Done(token);
}
}
