private async Task <string> FirstSync()
{
HttpResponseMessage firstSyncResponse = await _backendHttpClient.Get(
$"/_matrix/client/r0/sync?filter={_client.FilterId}", true);
try
{
firstSyncResponse.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
if (ex is HttpRequestException || ex is NullReferenceException)
{
Console.WriteLine("Initial Sync failed");
return(null);
}
throw;
}
string firstSyncResponseContents = await firstSyncResponse.Content.ReadAsStringAsync();
JObject firstSyncJObject = JObject.Parse(firstSyncResponseContents);
return((string)firstSyncJObject["next_batch"]);
}
private async Task <bool> SendMessageRequest(JObject jsonContent)
{
if (RoomId == null && RoomAlias == null)
{
throw new NullReferenceException("Both RoomId and RoomAlias are null");
}
if (string.IsNullOrWhiteSpace(RoomId))
{
HttpResponseMessage getRoomIdResponse = await _backendHttpClient.Get($"/_matrix/client/r0/directory/room/{HttpUtility.UrlEncode(RoomAlias)}", false);
try
{
getRoomIdResponse.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
if (ex is HttpRequestException || ex is NullReferenceException)
{
Console.WriteLine("Failed to get room ID from room alias");
return(false);
}
throw;
}
string getRoomIdResponseContent = await getRoomIdResponse.Content.ReadAsStringAsync();
JObject roomIdJObject = JObject.Parse(getRoomIdResponseContent);
RoomId = (string)roomIdJObject["room_id"];
}
HttpResponseMessage sendResponse = await _backendHttpClient.Post(
$"/_matrix/client/r0/rooms/{HttpUtility.UrlEncode(RoomId)}/send/m.room.message", true, jsonContent);
try
{
sendResponse.EnsureSuccessStatusCode();
return(true);
}
catch (Exception ex)
{
if (ex is HttpRequestException || ex is NullReferenceException)
{
return(false);
}
throw;
}
}
/// <summary>
/// Contact the sync endpoint in a fire and forget background task
/// </summary>
internal async Task Sync(MatrixClient client, CancellationToken syncCancellationToken)
{
_client = client;
_backendHttpClient = new MatrixHttp(client.HomeServer, client.AccessToken);
string nextBatch = string.Empty;
while (string.IsNullOrWhiteSpace(nextBatch) && !syncCancellationToken.IsCancellationRequested)
{
nextBatch = await FirstSync();
await Task.Delay(2000, syncCancellationToken);
}
while (!syncCancellationToken.IsCancellationRequested)
{
HttpResponseMessage syncResponseMessage = await _backendHttpClient.Get(
$"/_matrix/client/r0/sync?filter={_client.FilterId}&since={nextBatch}", true);
try
{
syncResponseMessage.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
if (ex is HttpRequestException || ex is NullReferenceException)
{
Console.WriteLine("Sync failed");
await Task.Delay(2000, syncCancellationToken);
continue;
}
throw;
}
string syncResponseMessageContents = await syncResponseMessage.Content.ReadAsStringAsync();
JObject syncResponseJObject = JObject.Parse(syncResponseMessageContents);
nextBatch = (string)syncResponseJObject["next_batch"];
SyncChecks(syncResponseJObject);
await Task.Delay(2000, syncCancellationToken);
}
}
