public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequestMessage req, TraceWriter log)
{
try
{
var channelSecret = System.Configuration.ConfigurationManager.AppSettings["ChannelSecret"];
var events = await req.GetWebhookEventsAsync(channelSecret);
var connectionString = System.Configuration.ConfigurationManager.AppSettings["AzureWebJobsStorage"];
var botStatus = await TableStorage <BotStatus> .CreateAsync(connectionString, "botstatus");
var blobStorage = await BlobStorage.CreateAsync(connectionString, "linebotcontainer");
var app = new LineBotApp(lineMessagingClient, botStatus, blobStorage, log);
/* To run sample apps in the samples directory, comment out the above line and cancel this comment out.
* var app = await AppSwitcher.SwitchAppsAsync(events,lineMessagingClient, botStatus, blobStorage, log);
* //*/
await app.RunAsync(events);
}
catch (InvalidSignatureException e)
{
return(req.CreateResponse(HttpStatusCode.Forbidden, new { e.Message }));
}
catch (LineResponseException e)
{
log.Error(e.ToString());
var debugUserId = System.Configuration.ConfigurationManager.AppSettings["DebugUser"];
if (debugUserId != null)
{
await lineMessagingClient.PushMessageAsync(debugUserId, $"{e.StatusCode}({(int)e.StatusCode}), {e.ResponseMessage.ToString()}");
}
}
catch (Exception e)
{
log.Error(e.ToString());
var debugUserId = System.Configuration.ConfigurationManager.AppSettings["DebugUser"];
if (debugUserId != null)
{
await lineMessagingClient.PushMessageAsync(debugUserId, e.Message);
}
}
return(req.CreateResponse(HttpStatusCode.OK));
}
public static async Task <WebhookApplication> SwitchAppsAsync(IEnumerable <WebhookEvent> events, LineMessagingClient line, TableStorage <BotStatus> botStatus, BlobStorage blobStorage, TraceWriter log)
{
var ev = events.First();
var status = await botStatus.FindAsync(ev.Source.Type.ToString(), ev.Source.Id);
if (status == null)
{
status = new BotStatus()
{
SourceType = ev.Source.Type.ToString(),
SourceId = ev.Source.Id,
CurrentApp = "@"
};
}
var message = (ev as MessageEvent)?.Message as TextEventMessage;
var text = message?.Text;
if (text == null || !text.StartsWith("@"))
{
text = status.CurrentApp;
}
text = text.Trim().ToLower();
WebhookApplication app = null;
if (text != "@richmenu")
{
try
{
await line.UnLinkRichMenuFromUserAsync(ev.Source.Id);
}
catch (LineResponseException e)
{
if (e.StatusCode != HttpStatusCode.NotFound)
{
throw;
}
}
}
switch (text)
{
case "@":
app = new LineBotApp(line, botStatus, blobStorage, log);
break;
case "@buttons":
app = new ButtonsTemplateSampleApp(line, blobStorage, log);
break;
case "@carousel":
app = new CarouselTemplateSampleApp(line, blobStorage, log);
break;
case "@postback":
app = new PostbackMessageSampleApp(line, botStatus, log);
break;
case "@imagemap":
app = new ImagemapSampleApp(line, blobStorage, log);
break;
case "@imagecarousel":
app = new ImageCarouselSampleApp(line, blobStorage, log);
break;
case "@datetime":
app = new DateTimePickerSampleApp(line, log);
break;
case "@richmenu":
app = new RichMenuSampleApp(line, log);
break;
default:
text = "@";
app = new LineBotApp(line, botStatus, blobStorage, log);
break;
}
status.CurrentApp = text;
await botStatus.UpdateAsync(status);
return(app);
}