public async Task <object> Any(PostChatToChannel request)
{
// Ensure the subscription sending this notification is still active
var sub = ServerEvents.GetSubscriptionInfo(request.From);
if (sub == null)
{
throw HttpError.NotFound("Subscription {0} does not exist".Fmt(request.From));
}
var channel = request.Channel;
var chatMessage = request.Message.IndexOf("{{", StringComparison.Ordinal) >= 0
? await HostContext.AppHost.ScriptContext.RenderScriptAsync(request.Message, new Dictionary <string, object> {
[nameof(Request)] = Request
})
: request.Message;
// Create a DTO ChatMessage to hold all required info about this message
var msg = new ChatMessage
{
Id = ChatHistory.GetNextMessageId(channel),
Channel = request.Channel,
FromUserId = sub.UserId,
FromName = sub.DisplayName,
Message = chatMessage.HtmlEncode(),
};
// Check to see if this is a private message to a specific user
if (request.ToUserId != null)
{
// Mark the message as private so it can be displayed differently in Chat
msg.Private = true;
// Send the message to the specific user Id
await ServerEvents.NotifyUserIdAsync(request.ToUserId, request.Selector, msg);
// Also provide UI feedback to the user sending the private message so they
// can see what was sent. Relay it to all senders active subscriptions
var toSubs = ServerEvents.GetSubscriptionInfosByUserId(request.ToUserId);
foreach (var toSub in toSubs)
{
// Change the message format to contain who the private message was sent to
msg.Message = $"@{toSub.DisplayName}: {msg.Message}";
await ServerEvents.NotifySubscriptionAsync(request.From, request.Selector, msg);
}
}
else
{
// Notify everyone in the channel for public messages
await ServerEvents.NotifyChannelAsync(request.Channel, request.Selector, msg);
}
if (!msg.Private)
{
ChatHistory.Log(channel, msg);
}
return(msg);
}