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 SyncManager(IServiceProvider serviceProvider, ILogger <SyncManager> logger)
{
sapphireSyncModule = (ISapphireSyncModule)serviceProvider.GetService(typeof(ISapphireSyncModule));
if (sapphireSyncModule != null)
{
sapphireSyncModule.SyncRequestRequestReceived += request =>
{
if (request.OriginId == uId)
{
return;
}
if (request.Propagate)
{
Publish(request);
}
if (request is SendChangesRequest sendChangesRequest)
{
Type dbType = Assembly.GetEntryAssembly()?.DefinedTypes
.FirstOrDefault(t => t.FullName == sendChangesRequest.DbType);
if (dbType != null)
{
SapphireChangeNotifier changeNotifier = (SapphireChangeNotifier)serviceProvider.GetService(typeof(SapphireChangeNotifier));
logger.LogInformation("Handling changes from other server");
changeNotifier.HandleChanges(sendChangesRequest.Changes, dbType);
}
}
else if (request is SendMessageRequest sendMessageRequest)
{
SapphireMessageSender sender = (SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling message from other server");
sender.Send(sendMessageRequest.Message, sendMessageRequest.Filter, sendMessageRequest.FilterParameters, false);
}
else if (request is SendPublishRequest sendPublishRequest)
{
SapphireMessageSender sender = (SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling publish from other server");
sender.Publish(sendPublishRequest.Topic, sendPublishRequest.Message, sendPublishRequest.Retain, false);
}
};
}
}
public SyncManager(IServiceProvider serviceProvider, ILogger <SyncManager> logger, DbContextTypeContainer contextTypeContainer, SyncContext syncContext)
{
this.logger = logger;
this.contextTypeContainer = contextTypeContainer;
this.syncContext = syncContext;
sapphireSyncModule = (ISapphireSyncModule)serviceProvider.GetService(typeof(ISapphireSyncModule));
if (sapphireSyncModule != null)
{
sapphireSyncModule.SyncRequestRequestReceived += request =>
{
if (request.OriginId == syncContext.SessionId)
{
return;
}
if (request.Propagate)
{
Publish(request);
}
if (request is SendChangesRequest sendChangesRequest)
{
Type dbType = contextTypeContainer.GetContext(sendChangesRequest.DbName);
if (dbType != null)
{
SapphireChangeNotifier changeNotifier =
(SapphireChangeNotifier)serviceProvider.GetService(typeof(SapphireChangeNotifier));
logger.LogInformation("Handling changes from other server");
logger.LogDebug(
"Handling {changeCount} changes of '{dbType}' from server with OriginId '{originId}'. Propagate: {propagate}",
sendChangesRequest.Changes.Count, dbType.Name,
sendChangesRequest.OriginId, sendChangesRequest.Propagate);
changeNotifier.HandleChanges(sendChangesRequest.Changes, dbType);
}
}
else if (request is SendMessageRequest sendMessageRequest)
{
SapphireMessageSender sender =
(SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling message from other server");
logger.LogDebug(
"Handling message for filter '{filter}' from server with OriginId '{originId}'. Propagate: {propagate}",
sendMessageRequest.Filter, sendMessageRequest.OriginId, sendMessageRequest.Propagate);
sender.Send(sendMessageRequest.Message, sendMessageRequest.Filter,
sendMessageRequest.FilterParameters, false);
}
else if (request is SendPublishRequest sendPublishRequest)
{
SapphireMessageSender sender =
(SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling publish from other server");
logger.LogDebug(
"Handling publish to topic '{topic}' from server with OriginId '{originId}'. Retain: {retain}, Propagate: {propagate}",
sendPublishRequest.Topic, sendPublishRequest.OriginId, sendPublishRequest.Retain, sendPublishRequest.Propagate);
sender.Publish(sendPublishRequest.Topic, sendPublishRequest.Message, sendPublishRequest.Retain,
false);
}
};
}
}
public SapphireDatabaseNotifier(SapphireChangeNotifier notifier, SyncManager syncManager)
{
this.notifier = notifier;
this.syncManager = syncManager;
}
public SapphireDatabaseNotifier(SapphireChangeNotifier notifier, NlbManager nlbManager)
{
this.notifier = notifier;
this.nlbManager = nlbManager;
}
public SyncManager(IServiceProvider serviceProvider, ILogger <SyncManager> logger, DbContextTypeContainer contextTypeContainer, SyncContext syncContext)
{
this.logger = logger;
this.contextTypeContainer = contextTypeContainer;
this.syncContext = syncContext;
sapphireSyncModule = (ISapphireSyncModule)serviceProvider.GetService(typeof(ISapphireSyncModule));
if (sapphireSyncModule != null)
{
sapphireSyncModule.SyncRequestRequestReceived += request =>
{
if (request.OriginId == syncContext.SessionId)
{
return;
}
if (request.Propagate)
{
Publish(request);
}
if (request is SendChangesRequest sendChangesRequest)
{
Type dbType = contextTypeContainer.GetContext(sendChangesRequest.DbName);
if (dbType != null)
{
SapphireChangeNotifier changeNotifier =
(SapphireChangeNotifier)serviceProvider.GetService(typeof(SapphireChangeNotifier));
logger.LogInformation("Handling changes from other server");
logger.LogDebug(
"Handling {ChangeCount} changes of {DbType} from server with OriginId {OriginId}. Propagate: {Propagate}",
sendChangesRequest.Changes.Count, dbType.Name,
sendChangesRequest.OriginId, sendChangesRequest.Propagate);
sendChangesRequest.Changes.ForEach(change =>
{
KeyValuePair <Type, string> property = dbType.GetDbSetType(change.CollectionName);
JObject rawValue = change.Value as JObject;
change.Value = rawValue?.ToObject(property.Key);
if (change.State == ChangeResponse.ChangeState.Modified && change.OriginalValue != null)
{
JObject rawOriginalValue = change.OriginalValue as JObject;
change.OriginalValue = rawOriginalValue?.ToObject(property.Key);
}
});
changeNotifier.HandleChanges(sendChangesRequest.Changes, dbType);
}
}
else if (request is SendMessageRequest sendMessageRequest)
{
SapphireMessageSender sender =
(SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling message from other server");
logger.LogDebug(
"Handling message for filter {Filter} from server with OriginId {OriginId}. Propagate: {Propagate}",
sendMessageRequest.Filter, sendMessageRequest.OriginId, sendMessageRequest.Propagate);
sender.Send(sendMessageRequest.Message, sendMessageRequest.Filter,
sendMessageRequest.FilterParameters, false);
}
else if (request is SendPublishRequest sendPublishRequest)
{
SapphireMessageSender sender =
(SapphireMessageSender)serviceProvider.GetService(typeof(SapphireMessageSender));
logger.LogInformation("Handling publish from other server");
logger.LogDebug(
"Handling publish to topic {Topic} from server with OriginId {OriginId}. Retain: {Retain}, Propagate: {Propagate}",
sendPublishRequest.Topic, sendPublishRequest.OriginId, sendPublishRequest.Retain, sendPublishRequest.Propagate);
sender.Publish(sendPublishRequest.Topic, sendPublishRequest.Message, sendPublishRequest.Retain,
false);
}
};
}
}
