public SapphireRedisSyncModule(RedisStore redisStore, SapphireDatabaseOptions options)
{
this.options = options;
redisMultiplexer = redisStore.RedisCache.Multiplexer;
redisMultiplexer.GetSubscriber().Subscribe($"{options.Sync.Prefix}sapphiresync/*", (channel, message) =>
{
string channelPath = channel.ToString().Split('/').LastOrDefault();
switch (channelPath)
{
case "changes":
SendChangesRequest changesRequest = JsonConvert.DeserializeObject <SendChangesRequest>(message);
SyncRequestRequestReceived?.Invoke(changesRequest);
break;
case "publish":
SendPublishRequest publishRequest = JsonConvert.DeserializeObject <SendPublishRequest>(message);
SyncRequestRequestReceived?.Invoke(publishRequest);
break;
case "message":
SendMessageRequest messageRequest = JsonConvert.DeserializeObject <SendMessageRequest>(message);
SyncRequestRequestReceived?.Invoke(messageRequest);
break;
}
});
}
public async Task Invoke(HttpContext context, SapphireChangeNotifier changeNotifier, SapphireMessageSender sender)
{
if (context.Request.Method != "POST")
{
await next(context);
return;
}
logger.LogInformation("Started handling nlb message");
string originId = context.Request.Headers["OriginId"].ToString();
if (context.Request.Headers["Secret"].ToString().ComputeHash() != options.Nlb.Secret ||
options.Nlb.Entries.All(e => e.Id != originId))
{
logger.LogError("Prevented unauthorized access to nlb sync methods");
context.Response.StatusCode = StatusCodes.Status401Unauthorized;
await context.Response.WriteAsync("You are not allowed to access this endpoint");
return;
}
StreamReader sr = new StreamReader(context.Request.Body);
string requestBody = await sr.ReadToEndAsync();
requestBody = requestBody.Decrypt(options.Nlb.EncryptionKey);
string requestPath = context.Request.Path.Value.Split('/').LastOrDefault();
switch (requestPath)
{
case "changes":
SendChangesRequest changesRequest = JsonConvert.DeserializeObject <SendChangesRequest>(requestBody);
Type dbType = Assembly.GetEntryAssembly()?.DefinedTypes.FirstOrDefault(t => t.FullName == changesRequest.DbType);
if (dbType != null)
{
logger.LogInformation("Handling changes from other server");
changeNotifier.HandleChanges(changesRequest.Changes, dbType);
}
break;
case "publish":
SendPublishRequest publishRequest = JsonConvert.DeserializeObject <SendPublishRequest>(requestBody);
logger.LogInformation("Handling publish from other server");
sender.Publish(publishRequest.Topic, publishRequest.Message, true);
break;
case "message":
SendMessageRequest messageRequest = JsonConvert.DeserializeObject <SendMessageRequest>(requestBody);
logger.LogInformation("Handling message from other server");
sender.Send(messageRequest.Message, true);
break;
}
}
public void SendPublish(string topic, object message)
{
SendPublishRequest sendPublishRequest = new SendPublishRequest()
{
Topic = topic,
Message = message
};
SendToNlbs(sendPublishRequest, "publish");
}
public void SendPublish(string topic, object message, bool retain)
{
SendPublishRequest sendPublishRequest = new SendPublishRequest()
{
Topic = topic,
Message = message,
Retain = retain,
OriginId = syncContext.SessionId
};
Publish(sendPublishRequest);
}
public async Task Invoke(HttpContext context)
{
if (context.Request.Method != "POST")
{
await next(context);
return;
}
logger.LogInformation("Started handling sync request");
string originId = context.Request.Headers["OriginId"].ToString();
if (context.Request.Headers["Secret"].ToString().ComputeHash() != options.Sync.Secret ||
options.Sync.Entries.All(e => e.Id != originId))
{
logger.LogError("Prevented unauthorized access to nlb sync methods");
context.Response.StatusCode = StatusCodes.Status401Unauthorized;
await context.Response.WriteAsync("You are not allowed to access this endpoint");
return;
}
StreamReader sr = new StreamReader(context.Request.Body);
string requestBody = await sr.ReadToEndAsync();
string requestPath = context.Request.Path.Value.Split('/').LastOrDefault();
switch (requestPath)
{
case "changes":
SendChangesRequest changesRequest = JsonConvert.DeserializeObject <SendChangesRequest>(requestBody);
sapphireHttpSyncModule.Received(changesRequest);
break;
case "publish":
SendPublishRequest publishRequest = JsonConvert.DeserializeObject <SendPublishRequest>(requestBody);
sapphireHttpSyncModule.Received(publishRequest);
break;
case "message":
SendMessageRequest messageRequest = JsonConvert.DeserializeObject <SendMessageRequest>(requestBody);
sapphireHttpSyncModule.Received(messageRequest);
break;
}
}
