├── .dockerignore ├── .gitignore ├── Dockerfile ├── LICENSE ├── Mqtt.Publisher.Config.xml ├── MqttPublisher.csproj ├── MqttPublisher.sln ├── Program.cs ├── Properties └── launchSettings.json └── README.md /.dockerignore: -------------------------------------------------------------------------------- 1 | **/.classpath 2 | **/.dockerignore 3 | **/.env 4 | **/.git 5 | **/.gitignore 6 | **/.project 7 | **/.settings 8 | **/.toolstarget 9 | **/.vs 10 | **/.vscode 11 | **/*.*proj.user 12 | **/*.dbmdl 13 | **/*.jfm 14 | **/azds.yaml 15 | **/bin 16 | **/charts 17 | **/docker-compose* 18 | **/Dockerfile* 19 | **/node_modules 20 | **/npm-debug.log 21 | **/obj 22 | **/secrets.dev.yaml 23 | **/values.dev.yaml 24 | LICENSE 25 | README.md -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Aa][Rr][Mm]/ 27 | [Aa][Rr][Mm]64/ 28 | bld/ 29 | [Bb]in/ 30 | [Oo]bj/ 31 | [Ll]og/ 32 | [Ll]ogs/ 33 | 34 | # Visual Studio 2015/2017 cache/options directory 35 | .vs/ 36 | # Uncomment if you have tasks that create the project's static files in wwwroot 37 | #wwwroot/ 38 | 39 | # Visual Studio 2017 auto generated files 40 | Generated\ Files/ 41 | 42 | # MSTest test Results 43 | [Tt]est[Rr]esult*/ 44 | [Bb]uild[Ll]og.* 45 | 46 | # NUnit 47 | *.VisualState.xml 48 | TestResult.xml 49 | nunit-*.xml 50 | 51 | # Build Results of an ATL Project 52 | [Dd]ebugPS/ 53 | [Rr]eleasePS/ 54 | dlldata.c 55 | 56 | # Benchmark Results 57 | BenchmarkDotNet.Artifacts/ 58 | 59 | # .NET Core 60 | project.lock.json 61 | project.fragment.lock.json 62 | artifacts/ 63 | 64 | # StyleCop 65 | StyleCopReport.xml 66 | 67 | # Files built by Visual Studio 68 | *_i.c 69 | *_p.c 70 | *_h.h 71 | *.ilk 72 | *.meta 73 | *.obj 74 | *.iobj 75 | *.pch 76 | *.pdb 77 | *.ipdb 78 | *.pgc 79 | *.pgd 80 | *.rsp 81 | *.sbr 82 | *.tlb 83 | *.tli 84 | *.tlh 85 | *.tmp 86 | *.tmp_proj 87 | *_wpftmp.csproj 88 | *.log 89 | *.vspscc 90 | *.vssscc 91 | .builds 92 | *.pidb 93 | *.svclog 94 | *.scc 95 | 96 | # Chutzpah Test files 97 | _Chutzpah* 98 | 99 | # Visual C++ cache files 100 | ipch/ 101 | *.aps 102 | *.ncb 103 | *.opendb 104 | *.opensdf 105 | *.sdf 106 | *.cachefile 107 | *.VC.db 108 | *.VC.VC.opendb 109 | 110 | # Visual Studio profiler 111 | *.psess 112 | *.vsp 113 | *.vspx 114 | *.sap 115 | 116 | # Visual Studio Trace Files 117 | *.e2e 118 | 119 | # TFS 2012 Local Workspace 120 | $tf/ 121 | 122 | # Guidance Automation Toolkit 123 | *.gpState 124 | 125 | # ReSharper is a .NET coding add-in 126 | _ReSharper*/ 127 | *.[Rr]e[Ss]harper 128 | *.DotSettings.user 129 | 130 | # TeamCity is a build add-in 131 | _TeamCity* 132 | 133 | # DotCover is a Code Coverage Tool 134 | *.dotCover 135 | 136 | # AxoCover is a Code Coverage Tool 137 | .axoCover/* 138 | !.axoCover/settings.json 139 | 140 | # Visual Studio code coverage results 141 | *.coverage 142 | *.coveragexml 143 | 144 | # NCrunch 145 | _NCrunch_* 146 | .*crunch*.local.xml 147 | nCrunchTemp_* 148 | 149 | # MightyMoose 150 | *.mm.* 151 | AutoTest.Net/ 152 | 153 | # Web workbench (sass) 154 | .sass-cache/ 155 | 156 | # Installshield output folder 157 | [Ee]xpress/ 158 | 159 | # DocProject is a documentation generator add-in 160 | DocProject/buildhelp/ 161 | DocProject/Help/*.HxT 162 | DocProject/Help/*.HxC 163 | DocProject/Help/*.hhc 164 | DocProject/Help/*.hhk 165 | DocProject/Help/*.hhp 166 | DocProject/Help/Html2 167 | DocProject/Help/html 168 | 169 | # Click-Once directory 170 | publish/ 171 | 172 | # Publish Web Output 173 | *.[Pp]ublish.xml 174 | *.azurePubxml 175 | # Note: Comment the next line if you want to checkin your web deploy settings, 176 | # but database connection strings (with potential passwords) will be unencrypted 177 | *.pubxml 178 | *.publishproj 179 | 180 | # Microsoft Azure Web App publish settings. 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IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /Mqtt.Publisher.Config.xml: -------------------------------------------------------------------------------- 1 |  2 | 7 | MQTTPublisher 8 | urn:localhost:MQTTPublisher:microsoft 9 | https://github.com/azure/iot-edge-opc-publisher 10 | Client_1 11 | 12 | 13 | Directory 14 | %LocalApplicationData%/MQTTPublisher/pki/own 15 | CN=OPC Publisher, C=US, S=Washington, O=Microsoft, DC=localhost 16 | 17 | 18 | Directory 19 | %LocalApplicationData%/MQTTPublisher/pki/issuer 20 | 21 | 22 | Directory 23 | %LocalApplicationData%/MQTTPublisher/pki/trusted 24 | 25 | 32 26 | 27 | Directory 28 | %LocalApplicationData%/MQTTPublisher/pki/rejected 29 | 30 | false 31 | 1024 32 | false 33 | 34 | Directory 35 | %LocalApplicationData%/MQTTPublisher/pki/issuerUser 36 | 37 | 38 | Directory 39 | %LocalApplicationData%/MQTTPublisher/pki/trustedUser 40 | 41 | 42 | 43 | 44 | 120000 45 | 1048576 46 | 4194304 47 | 65535 48 | 4194304 49 | 65535 50 | 300000 51 | 3600000 52 | 53 | 54 | 600000 55 | 56 | opc.tcp://{0}:4840/UADiscovery 57 | http://{0}:52601/UADiscovery 58 | http://{0}/UADiscovery/Default.svc 59 | 60 | 61 | Opc.Publisher.Endpoints.xml 62 | 10000 63 | 64 | 65 | 66 | 67 | %CommonApplicationData%\OPC Foundation\Logs\Opc.Publisher.log.txt 68 | true 69 | 70 | 645 71 | 72 | true 73 | 74 | -------------------------------------------------------------------------------- /MqttPublisher.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Exe 5 | net6.0 6 | MqttPublisher 7 | OpcUaPubSub 8 | OpcUaPubSub.Program 9 | MqttPublisher 10 | Linux 11 | . 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | PreserveNewest 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | $(SolutionDir)\build\bin\NetCore\$(Configuration)\ 33 | 34 | 35 | 36 | $(SolutionDir)\build\bin\NetCore\$(Configuration)\ 37 | 38 | 39 | 40 | -------------------------------------------------------------------------------- /MqttPublisher.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.31313.79 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MqttPublisher", "MqttPublisher.csproj", "{7CAE3BD8-3F31-46C9-BD1E-24BB8D6A31D1}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {7CAE3BD8-3F31-46C9-BD1E-24BB8D6A31D1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {7CAE3BD8-3F31-46C9-BD1E-24BB8D6A31D1}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {7CAE3BD8-3F31-46C9-BD1E-24BB8D6A31D1}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {7CAE3BD8-3F31-46C9-BD1E-24BB8D6A31D1}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {7539EBCD-8666-4BCD-98CA-3E513EDB71A8} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /Program.cs: -------------------------------------------------------------------------------- 1 | using MQTTnet; 2 | using MQTTnet.Adapter; 3 | using MQTTnet.Client; 4 | using MQTTnet.Packets; 5 | using MQTTnet.Protocol; 6 | using Opc.Ua; 7 | using Opc.Ua.Client; 8 | using Opc.Ua.Client.ComplexTypes; 9 | using Opc.Ua.Configuration; 10 | using System; 11 | using System.Collections.Generic; 12 | using System.Globalization; 13 | using System.Linq; 14 | using System.Security.Cryptography; 15 | using System.Text; 16 | using System.Threading; 17 | using System.Threading.Tasks; 18 | 19 | namespace OpcUaPubSub 20 | { 21 | public class Program 22 | { 23 | private static IMqttClient _client = null; 24 | 25 | public static void Main() 26 | { 27 | // create OPC UA client app 28 | ApplicationInstance app = new ApplicationInstance 29 | { 30 | ApplicationName = "MQTTPublisher", 31 | ApplicationType = ApplicationType.Client, 32 | ConfigSectionName = "Mqtt.Publisher" 33 | }; 34 | 35 | app.LoadApplicationConfiguration(false).GetAwaiter().GetResult(); 36 | app.CheckApplicationInstanceCertificate(false, 0).GetAwaiter().GetResult(); 37 | 38 | // create OPC UA cert validator 39 | app.ApplicationConfiguration.CertificateValidator = new CertificateValidator(); 40 | app.ApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(OPCUAServerCertificateValidationCallback); 41 | app.ApplicationConfiguration.CertificateValidator.Update(app.ApplicationConfiguration.SecurityConfiguration).GetAwaiter().GetResult(); 42 | 43 | string brokerName = " HandleMessageAsync(msg); 59 | 60 | var clientOptions = new MqttClientOptionsBuilder() 61 | .WithTcpServer(opt => opt.NoDelay = true) 62 | .WithClientId(clientName) 63 | .WithTcpServer(brokerName, 8883) 64 | .WithTls(new MqttClientOptionsBuilderTlsParameters { UseTls = true }) 65 | .WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V500) 66 | .WithUserProperty("host", brokerName) // normally it is not needed as SNI is added by most TLS implementations. 67 | .WithUserProperty("api-version", "2020-10-01-preview") 68 | .WithTimeout(TimeSpan.FromSeconds(30)) 69 | .WithKeepAlivePeriod(TimeSpan.FromSeconds(300)) 70 | .WithCleanSession(false) // keep existing subscriptions 71 | .WithAuthentication("SAS", sas) 72 | .WithUserProperty("sas-at", atString) 73 | .WithUserProperty("sas-expiry", expiryString); 74 | 75 | // setup disconnection handling: print out details and allow process to close 76 | bool disconnected = false; 77 | _client.DisconnectedAsync += disconnectArgs => 78 | { 79 | Console.WriteLine($"Disconnected: {disconnectArgs.Reason}"); 80 | disconnected = true; 81 | 82 | return Task.CompletedTask; 83 | }; 84 | 85 | try 86 | { 87 | var connectResult = _client.ConnectAsync(clientOptions.Build(), CancellationToken.None).GetAwaiter().GetResult(); 88 | if (connectResult.ResultCode != MqttClientConnectResultCode.Success) 89 | { 90 | var status = GetStatus(connectResult.UserProperties)?.ToString("x4"); 91 | throw new Exception($"Connect failed. Status: {connectResult.ResultCode}; status: {status}"); 92 | } 93 | 94 | var subscribeResult = _client.SubscribeAsync( 95 | new MqttTopicFilter 96 | { 97 | Topic = "$iothub/methods/+", 98 | QualityOfServiceLevel = MqttQualityOfServiceLevel.AtMostOnce 99 | }).GetAwaiter().GetResult(); 100 | 101 | // make sure subscriptions were successful 102 | if (subscribeResult.Items.Count != 1 || subscribeResult.Items.ElementAt(0).ResultCode != MqttClientSubscribeResultCode.GrantedQoS0) 103 | { 104 | throw new ApplicationException("Failed to subscribe"); 105 | } 106 | } 107 | catch (MqttConnectingFailedException ex) 108 | { 109 | Console.WriteLine($"Failed to connect, reason code: {ex.ResultCode}"); 110 | if (ex.Result?.UserProperties != null) 111 | { 112 | foreach (var prop in ex.Result.UserProperties) 113 | { 114 | Console.WriteLine($"{prop.Name}: {prop.Value}"); 115 | } 116 | } 117 | } 118 | 119 | // find endpoint on a local OPC UA server 120 | string serverEndpoint = "opc.tcp://localhost:50000"; // run this sample OPC UA server locally via: docker run -p 50000:50000 mcr.microsoft.com/iotedge/opc-plc --aa --ctb 121 | EndpointDescription endpointDescription = CoreClientUtils.SelectEndpoint(serverEndpoint, false); 122 | EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(app.ApplicationConfiguration); 123 | ConfiguredEndpoint endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration); 124 | 125 | // Create OPC UA session 126 | Session session = Session.Create(app.ApplicationConfiguration, endpoint, false, false, app.ApplicationConfiguration.ApplicationName, 30 * 60 * 1000, new UserIdentity(), null).GetAwaiter().GetResult(); 127 | if (!session.Connected) 128 | { 129 | Console.WriteLine("Connection to OPC UA server failed!"); 130 | return; 131 | } 132 | 133 | // load complex type system 134 | ComplexTypeSystem complexTypeSystem = new ComplexTypeSystem(session); 135 | 136 | // send data for a minute, every second 137 | try 138 | { 139 | int i = 0; 140 | while (!disconnected) 141 | { 142 | int publishingInterval = 1000; 143 | 144 | // read a variable node from the OPC UA server (for example a variable node based on a complex type, contained in the sample OPC PLC provided by Microsoft) 145 | ExpandedNodeId nodeID = ExpandedNodeId.Parse("nsu=http://microsoft.com/Opc/OpcPlc/Boiler;i=15013"); 146 | VariableNode node = (VariableNode)session.ReadNode(ExpandedNodeId.ToNodeId(nodeID, session.NamespaceUris)); 147 | 148 | ExpandedNodeId nodeTypeId = node.DataType; 149 | complexTypeSystem.LoadType(nodeTypeId).GetAwaiter().GetResult(); 150 | 151 | // now that we have loaded the complex type, we can read the value 152 | DataValue value = session.ReadValue(ExpandedNodeId.ToNodeId(nodeID, session.NamespaceUris)); 153 | 154 | // OPC UA PubSub JSON-encode data read 155 | JsonEncoder encoder = new JsonEncoder(session.MessageContext, true); 156 | encoder.WriteString("MessageId", i++.ToString()); 157 | encoder.WriteString("MessageType", "ua-data"); 158 | encoder.WriteString("PublisherId", app.ApplicationName); 159 | encoder.PushArray("Messages"); 160 | encoder.PushStructure(""); 161 | encoder.WriteString("DataSetWriterId", endpointDescription.Server.ApplicationUri + ":" + publishingInterval.ToString()); 162 | encoder.PushStructure("Payload"); 163 | encoder.WriteDataValue(node.DisplayName.ToString(), value); 164 | encoder.PopStructure(); 165 | encoder.PopStructure(); 166 | encoder.PopArray(); 167 | string payload = encoder.CloseAndReturnText(); 168 | 169 | // send to MQTTv5 broker 170 | var message = new MqttApplicationMessageBuilder() 171 | .WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce) 172 | .WithTopic("$iothub/telemetry") 173 | .WithContentType("application/json") // optional: sets `content-type` system property on message 174 | .WithUserProperty("@myProperty", "my value") // optional: adds custom property `myProperty` 175 | .WithUserProperty("creation-time", DateTimeOffset.UtcNow.ToUnixTimeMilliseconds().ToString()) // optional: sets `creation-time` system property on message 176 | .WithPayload(Encoding.UTF8.GetBytes(payload)) 177 | .Build(); 178 | 179 | var response = _client.PublishAsync(message).GetAwaiter().GetResult(); 180 | 181 | Task.Delay(publishingInterval).GetAwaiter().GetResult(); 182 | } 183 | 184 | Console.WriteLine("Exciting!"); 185 | 186 | session.Close(); 187 | session.Dispose(); 188 | 189 | _client.DisconnectAsync().GetAwaiter().GetResult(); 190 | _client.Dispose(); 191 | } 192 | catch (Exception ex) 193 | { 194 | Console.WriteLine("Exception: " + ex.Message); 195 | 196 | session.Close(); 197 | session.Dispose(); 198 | 199 | _client.DisconnectAsync().GetAwaiter().GetResult(); 200 | _client.Dispose(); 201 | } 202 | } 203 | 204 | // parses status from packet properties 205 | private static int? GetStatus(List properties) 206 | { 207 | var status = properties.FirstOrDefault(up => up.Name == "status"); 208 | if (status == null) 209 | { 210 | return null; 211 | } 212 | 213 | return int.Parse(status.Value, NumberStyles.HexNumber, CultureInfo.InvariantCulture); 214 | } 215 | 216 | // handles all incoming messages 217 | private static Task HandleMessageAsync(MqttApplicationMessageReceivedEventArgs args) 218 | { 219 | var msg = args.ApplicationMessage; 220 | if (msg.Topic.StartsWith("$iothub/methods/")) 221 | { 222 | var fork = Task.Run(async () => 223 | { 224 | var response = HandleMethod(msg); 225 | await _client.PublishAsync(response).ConfigureAwait(false); 226 | }); 227 | } 228 | else 229 | { 230 | Console.WriteLine("Unknown topic received: " + msg.Topic); 231 | } 232 | 233 | return Task.CompletedTask; 234 | } 235 | 236 | // handles direct method calls 237 | private static MqttApplicationMessage HandleMethod(MqttApplicationMessage message) 238 | { 239 | Console.WriteLine($"Received method call:\ntopic:{message.Topic}\npayload as a string: {Encoding.UTF8.GetString(message.PayloadSegment)}"); 240 | return new MqttApplicationMessageBuilder() 241 | .WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtMostOnce) 242 | .WithTopic("$iothub/responses") 243 | .WithCorrelationData(message.CorrelationData) 244 | .WithUserProperty("response-code", "200") 245 | .WithPayload("{\"test\":123}") 246 | .Build(); 247 | } 248 | 249 | private static void OPCUAServerCertificateValidationCallback(CertificateValidator validator, CertificateValidationEventArgs e) 250 | { 251 | // always trust the OPC UA server certificate 252 | if (e.Error.StatusCode == StatusCodes.BadCertificateUntrusted) 253 | { 254 | e.Accept = true; 255 | } 256 | } 257 | } 258 | } 259 | -------------------------------------------------------------------------------- /Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "profiles": { 3 | "MqttPublisher": { 4 | "commandName": "Project" 5 | }, 6 | "Docker": { 7 | "commandName": "Docker" 8 | } 9 | } 10 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # MQTTPublisherMVP 2 | Minimum Viable Product for an MQTTv5-based OPC UA PubSub Publisher for industrial cloud telemetry. 3 | 4 | 5 | 6 | --------------------------------------------------------------------------------