public static void Main(string[] args)
{
var currentPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var certificate = new X509Certificate2(
Path.Combine(currentPath, "certificate.pfx"),
"test",
X509KeyStorageFlags.Exportable);
var config = ReadConfiguration(currentPath);
var optionsBuilder = new MqttServerOptionsBuilder()
//.WithDefaultEndpoint().WithDefaultEndpointPort(1883) // For testing purposes only
.WithEncryptedEndpoint().WithEncryptedEndpointPort(config.Port)
.WithEncryptionCertificate(certificate.Export(X509ContentType.Pfx))
.WithEncryptionSslProtocol(SslProtocols.Tls12).WithConnectionValidator(
c =>
{
var currentUser = config.Users.FirstOrDefault(u => u.UserName == c.Username);
if (currentUser == null)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
return;
}
if (c.Username != currentUser.UserName)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
return;
}
if (c.Password != currentUser.Password)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
return;
}
if (string.IsNullOrWhiteSpace(currentUser.ClientIdPrefix))
{
if (c.ClientId != currentUser.ClientId)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
return;
}
else
{
c.SessionItems.Add(currentUser.ClientId, currentUser);
}
}
else
{
if (!clientIdPrefixesUsed.Contains(currentUser.ClientIdPrefix))
{
clientIdPrefixesUsed.Add(currentUser.ClientIdPrefix);
}
c.SessionItems.Add(currentUser.ClientIdPrefix, currentUser);
}
c.ReasonCode = MqttConnectReasonCode.Success;
}).WithSubscriptionInterceptor(
c =>
{
var clientIdPrefix = GetClientIdPrefix(c.ClientId);
User currentUser = null;
bool userFound;
if (clientIdPrefix == null)
{
userFound = c.SessionItems.TryGetValue(c.ClientId, out object currentUserObject);
currentUser = currentUserObject as User;
}
else
{
userFound = c.SessionItems.TryGetValue(clientIdPrefix, out object currentUserObject);
currentUser = currentUserObject as User;
}
if (!userFound || currentUser == null)
{
c.AcceptSubscription = false;
return;
}
var topic = c.TopicFilter.Topic;
if (currentUser.SubscriptionTopicLists.BlacklistTopics.Contains(topic))
{
c.AcceptSubscription = false;
return;
}
if (currentUser.SubscriptionTopicLists.WhitelistTopics.Contains(topic))
{
c.AcceptSubscription = true;
return;
}
foreach (var forbiddenTopic in currentUser.SubscriptionTopicLists.BlacklistTopics)
{
var doesTopicMatch = TopicChecker.Regex(forbiddenTopic, topic);
if (doesTopicMatch)
{
c.AcceptSubscription = false;
return;
}
}
foreach (var allowedTopic in currentUser.SubscriptionTopicLists.WhitelistTopics)
{
var doesTopicMatch = TopicChecker.Regex(allowedTopic, topic);
if (doesTopicMatch)
{
c.AcceptSubscription = true;
return;
}
}
c.AcceptSubscription = false;
}).WithApplicationMessageInterceptor(
c =>
{
var clientIdPrefix = GetClientIdPrefix(c.ClientId);
User currentUser = null;
bool userFound;
if (clientIdPrefix == null)
{
userFound = c.SessionItems.TryGetValue(c.ClientId, out object currentUserObject);
currentUser = currentUserObject as User;
}
else
{
userFound = c.SessionItems.TryGetValue(clientIdPrefix, out object currentUserObject);
currentUser = currentUserObject as User;
}
if (!userFound || currentUser == null)
{
c.AcceptPublish = false;
return;
}
var topic = c.ApplicationMessage.Topic;
if (currentUser.SubscriptionTopicLists.BlacklistTopics.Contains(topic))
{
c.AcceptPublish = false;
return;
}
if (currentUser.SubscriptionTopicLists.WhitelistTopics.Contains(topic))
{
c.AcceptPublish = true;
return;
}
foreach (var forbiddenTopic in currentUser.SubscriptionTopicLists.BlacklistTopics)
{
var doesTopicMatch = TopicChecker.Regex(forbiddenTopic, topic);
if (doesTopicMatch)
{
c.AcceptPublish = false;
return;
}
}
foreach (var allowedTopic in currentUser.SubscriptionTopicLists.WhitelistTopics)
{
var doesTopicMatch = TopicChecker.Regex(allowedTopic, topic);
if (doesTopicMatch)
{
c.AcceptPublish = true;
return;
}
}
c.AcceptPublish = false;
});
var mqttServer = new MqttFactory().CreateMqttServer();
mqttServer.StartAsync(optionsBuilder.Build());
Console.ReadLine();
}
public static void Main(string[] args)
{
var currentPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var certificate = new X509Certificate2(
Path.Combine(currentPath, "certificate.pfx"),
"test",
X509KeyStorageFlags.Exportable);
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.WriteTo.File(Path.Combine(currentPath,
@"log\NetCoreMQTTExampleJsonConfig_.txt"), rollingInterval: RollingInterval.Day)
.CreateLogger();
var config = ReadConfiguration(currentPath);
var optionsBuilder = new MqttServerOptionsBuilder()
#if DEBUG
.WithDefaultEndpoint().WithDefaultEndpointPort(1883)
#else
.WithoutDefaultEndpoint()
#endif
.WithEncryptedEndpoint().WithEncryptedEndpointPort(config.Port)
.WithEncryptionCertificate(certificate.Export(X509ContentType.Pfx))
.WithEncryptionSslProtocol(SslProtocols.Tls12).WithConnectionValidator(
c =>
{
var currentUser = config.Users.FirstOrDefault(u => u.UserName == c.Username);
if (currentUser == null)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
LogMessage(c, true);
return;
}
if (c.Username != currentUser.UserName)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
LogMessage(c, true);
return;
}
if (c.Password != currentUser.Password)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
LogMessage(c, true);
return;
}
if (!currentUser.ValidateClientId)
{
c.ReasonCode = MqttConnectReasonCode.Success;
c.SessionItems.Add(c.ClientId, currentUser);
LogMessage(c, false);
return;
}
if (string.IsNullOrWhiteSpace(currentUser.ClientIdPrefix))
{
if (c.ClientId != currentUser.ClientId)
{
c.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword;
LogMessage(c, true);
return;
}
c.SessionItems.Add(currentUser.ClientId, currentUser);
}
else
{
if (!ClientIdPrefixesUsed.Contains(currentUser.ClientIdPrefix))
{
ClientIdPrefixesUsed.Add(currentUser.ClientIdPrefix);
}
c.SessionItems.Add(currentUser.ClientIdPrefix, currentUser);
}
c.ReasonCode = MqttConnectReasonCode.Success;
LogMessage(c, false);
}).WithSubscriptionInterceptor(
c =>
{
var clientIdPrefix = GetClientIdPrefix(c.ClientId);
User currentUser;
bool userFound;
if (clientIdPrefix == null)
{
userFound = c.SessionItems.TryGetValue(c.ClientId, out var currentUserObject);
currentUser = currentUserObject as User;
}
else
{
userFound = c.SessionItems.TryGetValue(clientIdPrefix, out var currentUserObject);
currentUser = currentUserObject as User;
}
if (!userFound || currentUser == null)
{
c.AcceptSubscription = false;
LogMessage(c, false);
return;
}
var topic = c.TopicFilter.Topic;
if (currentUser.SubscriptionTopicLists.BlacklistTopics.Contains(topic))
{
c.AcceptSubscription = false;
LogMessage(c, false);
return;
}
if (currentUser.SubscriptionTopicLists.WhitelistTopics.Contains(topic))
{
c.AcceptSubscription = true;
LogMessage(c, true);
return;
}
// ReSharper disable once ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
foreach (var forbiddenTopic in currentUser.SubscriptionTopicLists.BlacklistTopics)
{
var doesTopicMatch = TopicChecker.Regex(forbiddenTopic, topic);
if (!doesTopicMatch)
{
continue;
}
c.AcceptSubscription = false;
LogMessage(c, false);
return;
}
// ReSharper disable once ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
foreach (var allowedTopic in currentUser.SubscriptionTopicLists.WhitelistTopics)
{
var doesTopicMatch = TopicChecker.Regex(allowedTopic, topic);
if (!doesTopicMatch)
{
continue;
}
c.AcceptSubscription = true;
LogMessage(c, true);
return;
}
c.AcceptSubscription = false;
LogMessage(c, false);
}).WithApplicationMessageInterceptor(
c =>
{
var clientIdPrefix = GetClientIdPrefix(c.ClientId);
User currentUser;
bool userFound;
if (clientIdPrefix == null)
{
userFound = c.SessionItems.TryGetValue(c.ClientId, out var currentUserObject);
currentUser = currentUserObject as User;
}
else
{
userFound = c.SessionItems.TryGetValue(clientIdPrefix, out var currentUserObject);
currentUser = currentUserObject as User;
}
if (!userFound || currentUser == null)
{
c.AcceptPublish = false;
return;
}
var topic = c.ApplicationMessage.Topic;
if (currentUser.PublishTopicLists.BlacklistTopics.Contains(topic))
{
c.AcceptPublish = false;
return;
}
if (currentUser.PublishTopicLists.WhitelistTopics.Contains(topic))
{
c.AcceptPublish = true;
LogMessage(c);
return;
}
// ReSharper disable once ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
foreach (var forbiddenTopic in currentUser.PublishTopicLists.BlacklistTopics)
{
var doesTopicMatch = TopicChecker.Regex(forbiddenTopic, topic);
if (!doesTopicMatch)
{
continue;
}
c.AcceptPublish = false;
return;
}
// ReSharper disable once ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
foreach (var allowedTopic in currentUser.PublishTopicLists.WhitelistTopics)
{
var doesTopicMatch = TopicChecker.Regex(allowedTopic, topic);
if (!doesTopicMatch)
{
continue;
}
c.AcceptPublish = true;
LogMessage(c);
return;
}
c.AcceptPublish = false;
});
var mqttServer = new MqttFactory().CreateMqttServer();
mqttServer.StartAsync(optionsBuilder.Build());
Console.ReadLine();
}