private async void OnDirectMessageReceived(DirectMessageEvent obj)
{
_logger.LogInformation(
$"Direct Message from {obj.Sender.Name} (@{obj.Sender.ScreenName}): {obj.MessageText}");
// Important: Ignore messages originating from the bot else recursion happens
if (obj.Sender.ScreenName == _options.BotUsername)
{
return;
}
if (_options.AllowedUsernamesConfigured() &&
_options.AllowedUsernames.Contains(obj.Sender.ScreenName) ||
!_options.AllowedUsernamesConfigured())
{
// Only respond if sender is different than the bot
await _bot.OnTurnAsync(new TurnContext(_adapter, new Activity
{
Text = obj.MessageText,
Type = "message",
From = new ChannelAccount(obj.Sender.Id, obj.Sender.ScreenName),
Recipient = new ChannelAccount(obj.Recipient.Id, obj.Recipient.ScreenName),
Conversation = new ConversationAccount {
Id = obj.Sender.Id
},
ChannelId = "twitter"
}));
}
}
/// <summary>
/// Intercept incoming requests to the server to handle them according to Twitter Documentation, Currently:
/// - Challenge Response Check.
/// - Incoming DirectMessage.
/// </summary>
/// <param name="requestMessage">Thr request message object you recieved.</param>
/// <param name="OnDirectMessageRecieved">If this is an incoming direct message, this callback will be fired along with the message object <see cref="DirectMessageEvent"/>.</param>
/// <returns>
/// <see cref="InterceptionResult"/> Interception result.
/// </returns>
public async Task <InterceptionResult> InterceptIncomingRequest(HttpRequestMessage requestMessage, Action <DirectMessageEvent> OnDirectMessageRecieved)
{
if (string.IsNullOrEmpty(ConsumerSecret))
{
throw new TweetyException("Consumer Secret can't be null.");
}
if (requestMessage.Method == HttpMethod.Get)
{
Dictionary <string, string> requestParams = requestMessage.RequestUri.GetParams();
if (!requestParams.ContainsKey("crc_token"))
{
goto Finally;
}
// Challenge Response Check Request:
string crcToken = requestParams["crc_token"];
HttpResponseMessage response = AcceptChallenge(crcToken);
return(InterceptionResult.CreateHandled(response, requestMessage));
}
else if (requestMessage.Method == HttpMethod.Post)
{
if (!requestMessage.Headers.Contains("x-twitter-webhooks-signature"))
{
goto Finally;
}
string payloadSignature = requestMessage.Headers.GetValues("x-twitter-webhooks-signature").First();
string payload = await requestMessage.Content.ReadAsStringAsync();
bool signatureMatch = IsValidTwitterPostRequest(payloadSignature, payload);
if (!signatureMatch)
{
//This is interseting, a twitter signature key 'x-twitter-webhooks-signature' is there but it's wrong..!
return(InterceptionResult.CreateHandled(new HttpResponseMessage(System.Net.HttpStatusCode.BadRequest), requestMessage));
}
try
{
WebhookDMResult dmResult = JsonConvert.DeserializeObject <WebhookDMResult>(payload);
DirectMessageEvent eventResult = dmResult;
eventResult.JsonSource = payload;
OnDirectMessageRecieved?.Invoke(eventResult);
}
catch
{
//Failed to deserialize twitter direct message,
//TODO: Handle in a better way.. perhaps send the json?
}
}
Finally:
return(InterceptionResult.CreateUnhandled(OK(), requestMessage));
}
/// <summary>
/// Intercept incoming requests to the server to handle them according to Twitter Documentation, Currently:
/// - Challenge Response Check.
/// - Incoming DirectMessage.
/// </summary>
/// <param name="requestMessage">Thr request message object you received.</param>
/// <param name="OnDirectMessageRecieved">If this is an incoming direct message, this callback will be fired along with the message object <see cref="DirectMessageEvent"/>.</param>
/// <returns>
/// <see cref="InterceptionResult"/> Interception result.
/// </returns>
public async Task <InterceptionResult> InterceptIncomingRequest(HttpRequest requestMessage, Action <DirectMessageEvent> OnDirectMessageRecieved)
{
if (string.IsNullOrEmpty(ConsumerSecret))
{
throw new TwitterException("Consumer Secret can't be null.");
}
if (HttpMethods.IsGet(requestMessage.Method))
{
if (!requestMessage.Query.TryGetValue("crc_token", out var values))
{
return(InterceptionResult.CreateUnhandled());
}
// Challenge Response Check Request:
var crcToken = values.First();
var response = AcceptChallenge(crcToken);
return(InterceptionResult.CreateHandled(response));
}
else if (HttpMethods.IsPost(requestMessage.Method))
{
if (!requestMessage.Headers.TryGetValue("x-twitter-webhooks-signature", out var header))
{
return(InterceptionResult.CreateUnhandled());
}
var payloadSignature = header.First();
var streamReader = new StreamReader(requestMessage.Body);
var payload = await streamReader.ReadToEndAsync();
var signatureMatch = IsValidTwitterPostRequest(payloadSignature, payload);
if (!signatureMatch)
{
//This is intersecting, a twitter signature key 'x-twitter-webhooks-signature' is there but it's wrong..!
//return InterceptionResult.CreateHandled(new HttpResponseMessage(System.Net.HttpStatusCode.BadRequest), requestMessage);
throw new TwitterException("Invalid signature");
}
try
{
var dmResult = JsonConvert.DeserializeObject <WebhookDMResult>(payload);
DirectMessageEvent eventResult = dmResult;
eventResult.JsonSource = payload;
OnDirectMessageRecieved?.Invoke(eventResult);
return(InterceptionResult.CreateHandled(string.Empty));
}
catch
{
return(InterceptionResult.CreateHandled(string.Empty));
//Failed to deserialize twitter direct message,
//TODO: Handle in a better way.. perhaps send the json?
}
}
return(InterceptionResult.CreateUnhandled());
}
private Activity RequestToActivity(DirectMessageEvent obj)
{
return(new Activity
{
Text = obj.MessageText,
Type = "message",
From = new ChannelAccount(obj.Sender.Id, obj.Sender.ScreenName),
Recipient = new ChannelAccount(obj.Recipient.Id, obj.Recipient.ScreenName),
Conversation = new ConversationAccount {
Id = obj.Sender.Id
},
ChannelId = "twitter"
});
}
public async Task ProcessActivityShouldSucceed()
{
var adapter = new TwitterAdapter(_testOptions.Object);
var directMessageEvent = new DirectMessageEvent();
var bot = new Mock <IBot>();
directMessageEvent.MessageText = "test message text";
directMessageEvent.Sender = new TwitterUser();
directMessageEvent.Recipient = new TwitterUser();
directMessageEvent.Sender.Id = string.Empty;
directMessageEvent.Sender.ScreenName = string.Empty;
directMessageEvent.Recipient.Id = string.Empty;
directMessageEvent.Recipient.ScreenName = string.Empty;
bot.SetupAllProperties();
await adapter.ProcessActivity(directMessageEvent, bot.Object.OnTurnAsync);
bot.Verify(b => b.OnTurnAsync(It.IsAny <TurnContext>(), It.IsAny <CancellationToken>()), Times.Once);
}
private async void OnDirectMessageReceived(DirectMessageEvent obj)
{
_logger.LogInformation(
$"Direct Message from {obj.Sender.Name} (@{obj.Sender.ScreenName}): {obj.MessageText}");
// Important: Ignore messages originating from the bot else recursion happens
if (obj.Sender.ScreenName == _options.BotUsername)
{
return;
}
if (_options.AllowedUsernamesConfigured() &&
_options.AllowedUsernames.Contains(obj.Sender.ScreenName) ||
!_options.AllowedUsernamesConfigured())
{
// Only respond if sender is different than the bot
await _adapter.ProcessActivity(obj, _bot.OnTurnAsync);
}
}
public async Task ProcessActivity(DirectMessageEvent obj, BotCallbackHandler callback)
{
TurnContext context = null;
try
{
var activity = RequestToActivity(obj);
BotAssert.ActivityNotNull(activity);
context = new TurnContext(this, activity);
await RunPipelineAsync(context, callback, default).ConfigureAwait(false);
}
catch (Exception ex)
{
await OnTurnError(context, ex);
throw;
}
}
