Update docs.

Client cancel task

.bettercodehub.yml

@@ -0,0 +1,3 @@
+component_depth: 2
+languages:
+- csharp

.gitignore

@@ -1,5 +1,7 @@
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
 
 # User-specific files
 *.suo
@@ -15,12 +17,12 @@
 [Dd]ebugPublic/
 [Rr]elease/
 [Rr]eleases/
-[Xx]64/
-[Xx]86/
-[Bb]uild/
+x64/
+x86/
 bld/
 [Bb]in/
 [Oo]bj/
+[Ll]og/
 
 # Visual Studio 2015 cache/options directory
 .vs/
@@ -40,9 +42,11 @@ TestResult.xml
 [Rr]eleasePS/
 dlldata.c
 
-# DNX
+# .NET Core
 project.lock.json
+project.fragment.lock.json
 artifacts/
+**/Properties/launchSettings.json
 
 *_i.c
 *_p.c
@@ -81,6 +85,7 @@ ipch/
 *.sdf
 *.cachefile
 *.VC.db
+*.VC.VC.opendb
 
 # Visual Studio profiler
 *.psess
@@ -108,6 +113,10 @@ _TeamCity*
 # DotCover is a Code Coverage Tool
 *.dotCover
 
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
 # NCrunch
 _NCrunch_*
 .*crunch*.local.xml
@@ -139,13 +148,16 @@ publish/
 # Publish Web Output
 *.[Pp]ublish.xml
 *.azurePubxml
-
-# TODO: Un-comment the next line if you do not want to checkin 
-# your web deploy settings because they may include unencrypted
-# passwords
-#*.pubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
 *.publishproj
 
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
 # NuGet Packages
 *.nupkg
 # The packages folder can be ignored because of Package Restore
@@ -154,7 +166,7 @@ publish/
 !**/packages/build/
 # Uncomment if necessary however generally it will be regenerated when needed
 #!**/packages/repositories.config
-# NuGet v3's project.json files produces more ignoreable files
+# NuGet v3's project.json files produces more ignorable files
 *.nuget.props
 *.nuget.targets
 
@@ -166,12 +178,11 @@ csx/
 ecf/
 rcf/
 
-# Microsoft Azure ApplicationInsights config file
-ApplicationInsights.config
-
-# Windows Store app package directory
+# Windows Store app package directories and files
 AppPackages/
 BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
 
 # Visual Studio cache files
 # files ending in .cache can be ignored
@@ -181,16 +192,19 @@ BundleArtifacts/
 
 # Others
 ClientBin/
-[Ss]tyle[Cc]op.*
 ~$*
 *~
 *.dbmdl
 *.dbproj.schemaview
-*.pfx
+*.jfm
+# *.pfx
 *.publishsettings
-node_modules/
 orleans.codegen.cs
 
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
 # RIA/Silverlight projects
 Generated_Code/
 
@@ -205,6 +219,7 @@ UpgradeLog*.htm
 # SQL Server files
 *.mdf
 *.ldf
+*.ndf
 
 # Business Intelligence projects
 *.rdl.data
@@ -219,6 +234,10 @@ FakesAssemblies/
 
 # Node.js Tools for Visual Studio
 .ntvs_analysis.dat
+node_modules/
+
+# Typescript v1 declaration files
+typings/
 
 # Visual Studio 6 build log
 *.plg
@@ -226,6 +245,9 @@ FakesAssemblies/
 # Visual Studio 6 workspace options file
 *.opt
 
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
 # Visual Studio LightSwitch build output
 **/*.HTMLClient/GeneratedArtifacts
 **/*.DesktopClient/GeneratedArtifacts
@@ -234,13 +256,40 @@ FakesAssemblies/
 **/*.Server/ModelManifest.xml
 _Pvt_Extensions
 
-# LightSwitch generated files
-GeneratedArtifacts/
-ModelManifest.xml
-
 # Paket dependency manager
 .paket/paket.exe
+paket-files/
 
 # FAKE - F# Make
 .fake/
-nuget.exe
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+
+Build/nuget.exe
+*.js
+*.map
+
+/Tests/MQTTnet.TestApp.NetCore/RetainedMessages.json

.travis.yml

@@ -0,0 +1,10 @@
+language: csharp
+solution: MQTTnet.sln
+
+matrix:
+  include:
+    - dotnet: 2.0.0
+      mono: none
+      dist: trusty
+      env: DOTNETCORE=1  # optional, can be used to take different code paths in your script
+    - mono: latest

Build/MQTTnet.AspNetCore.nuspec

@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>MQTTnet.AspNetCore</id>
+    <version>0.0.0</version>
+    <authors>Christian Kratky</authors>
+    <owners>Christian Kratky</owners>
+    <licenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/chkr1011/MQTTnet</projectUrl>
+    <iconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</iconUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>This is a support library to integrate MQTTnet into AspNetCore.</description>
+    <releaseNotes>* For more release notes please check the MQTTnet release notes.
+    </releaseNotes>
+    <copyright>Copyright Christian Kratky 2016-2018</copyright>
+    <tags>MQTT Message Queue Telemetry Transport MQTTClient MQTTServer Server MQTTBroker Broker NETStandard IoT InternetOfThings Messaging Hardware Arduino Sensor Actuator M2M ESP Smart Home Cities Automation Xamarin</tags>
+    <dependencies>
+      <dependency id="MQTTnet" version="2.8.3" />
+      <dependency id="Microsoft.AspNetCore.Connections.Abstractions" version="2.1.0" />
+      <dependency id="Microsoft.AspNetCore.WebSockets" version="2.0.1" />
+      <dependency id="Microsoft.Extensions.Hosting.Abstractions" version="2.0.1" />
+    </dependencies>
+  </metadata>
+
+  <files>
+    <!-- .NET Standard 2.0 -->
+    <file src="..\Source\MQTTnet.AspNetCore\bin\Release\netstandard2.0\MQTTnet.AspNetCore.*" target="lib\netstandard2.0\"/>
+  </files>
+</package>

Build/MQTTnet.Extensions.ManagedClient.nuspec

@@ -0,0 +1,41 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>MQTTnet.Extensions.ManagedClient</id>
+    <version>0.0.0</version>
+    <authors>Christian Kratky</authors>
+    <owners>Christian Kratky</owners>
+    <licenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/chkr1011/MQTTnet</projectUrl>
+    <iconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</iconUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>This is an extension library which provides a managed MQTT client with additional features using MQTTnet.</description>
+    <releaseNotes>* For more release notes please check the MQTTnet release notes.
+    </releaseNotes>
+    <copyright>Copyright Christian Kratky 2016-2018</copyright>
+    <tags>MQTT Message Queue Telemetry Transport MQTTClient MQTTServer Server MQTTBroker Broker NETStandard IoT InternetOfThings Messaging Hardware Arduino Sensor Actuator M2M ESP Smart Home Cities Automation Xamarin</tags> 
+    <dependencies>
+      <dependency id="MQTTnet" version="2.8.3" />
+    </dependencies>
+  </metadata>
+
+  <files>
+    <!-- .NET Standard 1.3 -->
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard1.3\MQTTnet.Extensions.ManagedClient.*" target="lib\netstandard1.3\"/>
+
+    <!-- .NET Standard 2.0 -->
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\netstandard2.0\"/>
+
+    <!-- Universal Windows -->
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\uap10.0\MQTTnet.Extensions.ManagedClient.*" target="lib\uap10.0\"/>
+
+    <!-- .NET Framework -->
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\net452\MQTTnet.Extensions.ManagedClient.*" target="lib\net452\"/>
+
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\net461\"/>
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\net462\"/>
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\net470\"/>
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\net471\"/>
+    <file src="..\Source\MQTTnet.Extensions.ManagedClient\bin\Release\netstandard2.0\MQTTnet.Extensions.ManagedClient.*" target="lib\net472\"/>
+  </files>
+</package>

Build/MQTTnet.Extensions.Rpc.nuspec

@@ -0,0 +1,41 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>MQTTnet.Extensions.Rpc</id>
+    <version>0.0.0</version>
+    <authors>Christian Kratky</authors>
+    <owners>Christian Kratky</owners>
+    <licenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/chkr1011/MQTTnet</projectUrl>
+    <iconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</iconUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>This is an extension library which allows executing synchronous device calls including a response using MQTTnet.</description>
+    <releaseNotes>* For more release notes please check the MQTTnet release notes.
+    </releaseNotes>
+    <copyright>Copyright Christian Kratky 2016-2018</copyright>
+    <tags>MQTT Message Queue Telemetry Transport MQTTClient MQTTServer Server MQTTBroker Broker NETStandard IoT InternetOfThings Messaging Hardware Arduino Sensor Actuator M2M ESP Smart Home Cities Automation Xamarin</tags> 
+    <dependencies>
+      <dependency id="MQTTnet" version="2.8.3" />
+    </dependencies>
+  </metadata>
+
+  <files>
+    <!-- .NET Standard 1.3 -->
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard1.3\MQTTnet.Extensions.Rpc.*" target="lib\netstandard1.3\"/>
+
+    <!-- .NET Standard 2.0 -->
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\netstandard2.0\"/>
+
+    <!-- Universal Windows -->
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\uap10.0\MQTTnet.Extensions.Rpc.*" target="lib\uap10.0\"/>
+
+    <!-- .NET Framework -->
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\net452\MQTTnet.Extensions.Rpc.*" target="lib\net452\"/>
+
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\net461\"/>
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\net462\"/>
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\net470\"/>
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\net471\"/>
+    <file src="..\Source\MQTTnet.Extensions.Rpc\bin\Release\netstandard2.0\MQTTnet.Extensions.Rpc.*" target="lib\net472\"/>
+  </files>
+</package>

Build/MQTTnet.nuspec

@@ -0,0 +1,62 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>MQTTnet</id>
+    <version>0.0.0</version>
+    <authors>Christian Kratky</authors>
+    <owners>Christian Kratky</owners>
+    <licenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/chkr1011/MQTTnet</projectUrl>
+    <iconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</iconUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker).</description>
+    <releaseNotes>* [Core] Added all factory methods to the factory interface.
+* [Core] Fixed an issue with cancellation token handling (thanks to @acrabb).
+* [Server] Added a new overload for configuring the ASP.net integration (thanks to @JanEggers).
+* [Server] Added a method for clearing all retained messages.
+    </releaseNotes>
+    <copyright>Copyright Christian Kratky 2016-2018</copyright>
+    <tags>MQTT Message Queue Telemetry Transport MQTTClient MQTTServer Server MQTTBroker Broker NETStandard IoT InternetOfThings Messaging Hardware Arduino Sensor Actuator M2M ESP Smart Home Cities Automation Xamarin</tags> 
+    <dependencies>
+      <group targetFramework="netstandard1.3">
+        <dependency id="NETStandard.Library" version="1.3.0" />
+        <dependency id="System.Net.Security" version="4.3.2" />
+        <dependency id="System.Net.WebSockets" version="4.3.0" />
+        <dependency id="System.Net.WebSockets.Client" version="4.3.1" />      
+      </group>
+      <group targetFramework="netstandard2.0">
+        <dependency id="NETStandard.Library" version="2.0.0" />
+        <dependency id="System.Net.Security" version="4.3.2" />
+        <dependency id="System.Net.WebSockets" version="4.3.0" />
+        <dependency id="System.Net.WebSockets.Client" version="4.3.2" />
+      </group>
+      <group targetFramework="uap10.0">
+        <dependency id="Microsoft.NETCore.UniversalWindowsPlatform" version="6.1.4" />
+      </group>
+      <group targetFramework="net452">
+      </group>
+      <group targetFramework="net461">
+      </group>
+    </dependencies>
+  </metadata>
+
+  <files>
+    <!-- .NET Standard 1.3 -->
+    <file src="..\Source\MQTTnet\bin\Release\netstandard1.3\MQTTnet.*" target="lib\netstandard1.3\"/>
+    
+    <!-- .NET Standard 2.0 -->
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\netstandard2.0\"/>
+
+    <!-- Universal Windows -->
+    <file src="..\Source\MQTTnet\bin\Release\uap10.0\MQTTnet.*" target="lib\uap10.0\"/>
+
+    <!-- .NET Framework -->
+    <file src="..\Source\MQTTnet\bin\Release\net452\MQTTnet.*" target="lib\net452\"/>
+
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\net461\"/>
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\net462\"/>
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\net470\"/>
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\net471\"/>
+    <file src="..\Source\MQTTnet\bin\Release\netstandard2.0\MQTTnet.*" target="lib\net472\"/>
+  </files>
+</package>

Build/build.ps1

@@ -0,0 +1,47 @@
+param([string]$assemblyVersion, [string]$nugetVersion)
+
+if ([string]::IsNullOrEmpty($assemblyVersion)) {$assemblyVersion = "0.0.1"}
+if ([string]::IsNullOrEmpty($nugetVersion)) {$nugetVersion = "0.0.1"}
+
+Write-Host "Assembly version = $assemblyVersion"
+Write-Host "Nuget version    = $nugetVersion"
+Write-Host
+
+$vswhere = ${Env:\ProgramFiles(x86)} + '\Microsoft Visual Studio\Installer\vswhere'
+
+$path = &$vswhere -latest -products * -requires Microsoft.Component.MSBuild -property installationPath
+if ($path) {
+    $msbuild = join-path $path 'MSBuild\15.0\Bin\MSBuild.exe'
+
+	# Build the core library
+    &$msbuild ..\Source\MQTTnet\MQTTnet.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net452" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet\MQTTnet.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net461" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet\MQTTnet.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard1.3" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet\MQTTnet.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet\MQTTnet.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="uap10.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    
+	# Build the ASP.NET Core 2.0 extension
+	&$msbuild ..\Source\MQTTnet.AspNetCore\MQTTnet.AspNetCore.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+
+	# Build the RPC extension
+	&$msbuild ..\Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net452" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net461" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard1.3" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="uap10.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+
+	# Build the Managed Client extension
+	&$msbuild ..\Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net452" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net461" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard1.3" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+    &$msbuild ..\Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="uap10.0" /p:FileVersion=$assemblyVersion /p:AssemblyVersion=$assemblyVersion /verbosity:m /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=".\..\..\Build\codeSigningKey.pfx"
+
+	Remove-Item .\NuGet -Force -Recurse -ErrorAction SilentlyContinue
+
+    New-Item -ItemType Directory -Force -Path .\NuGet
+    .\nuget.exe pack MQTTnet.nuspec -Verbosity detailed -Symbols -OutputDir "NuGet" -Version $nugetVersion
+    .\nuget.exe pack MQTTnet.AspNetCore.nuspec -Verbosity detailed -Symbols -OutputDir "NuGet" -Version $nugetVersion
+	.\nuget.exe pack MQTTnet.Extensions.Rpc.nuspec -Verbosity detailed -Symbols -OutputDir "NuGet" -Version $nugetVersion
+	.\nuget.exe pack MQTTnet.Extensions.ManagedClient.nuspec -Verbosity detailed -Symbols -OutputDir "NuGet" -Version $nugetVersion
+}

Build/upload.ps1

@@ -0,0 +1,9 @@
+param([string]$apiKey)
+
+$files = Get-ChildItem -Path ".\NuGet" -Filter "*.nupkg"
+foreach ($file in $files)
+{
+	Write-Host "Uploading: " $file
+
+	.\nuget.exe push $file.Fullname $apiKey -NoSymbols -Source https://api.nuget.org/v3/index.json
+}

Documents/Import_CodeSigningKey.md

@@ -0,0 +1,9 @@
+# Import codeSigningKey.pfx
+In order to import the key for code signing on a new developer machine use the following command within the VS developer command line:
+
+> sn –i codeSigningKey.pfx VS_KEY_EFCA4C5B6DFD4B4F
+
+The container name may be different.
+
+# Check if the assembly has a strong name
+> sn -vf MQTTnet.dll

Frameworks/MQTTnet.NetCoreApp/MQTTnet.NetCoreApp.csproj

@@ -1,34 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp1.1</TargetFramework>
-    <Authors>Christian Kratky</Authors>
-    <Company>Christian Kratky</Company>
-    <Product>MQTTnet</Product>
-    <Description>MQTTnet is a .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker).</Description>
-    <Copyright>Copyright © Christian Kratky 2016-2017</Copyright>
-    <Version>2.1.1.0</Version>
-    <AssemblyVersion>2.1.1.0</AssemblyVersion>
-    <FileVersion>2.1.1.0</FileVersion>
-    <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
-    <AssemblyName>MQTTnet</AssemblyName>
-    <RootNamespace>MQTTnet</RootNamespace>
-    <PackageId>MQTTnet.NetCore</PackageId>
-    <PackageProjectUrl>https://github.com/chkr1011/MQTTnet</PackageProjectUrl>
-    <RepositoryUrl>https://github.com/chkr1011/MQTTnet</RepositoryUrl>
-    <PackageTags>MQTT MQTTClient MQTTServer MQTTBroker Broker</PackageTags>
-    <PackageIconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</PackageIconUrl>
-    <PackageLicenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</PackageLicenseUrl>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|AnyCPU'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|x64'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|x86'" />
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\MQTTnet.Core\MQTTnet.Core.csproj" />
-  </ItemGroup>
-
-</Project>

Frameworks/MQTTnet.NetCoreApp/MqttClientFactory.cs

@@ -1,17 +0,0 @@
-using System;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Serializer;
-
-namespace MQTTnet
-{
-    public class MqttClientFactory
-    {
-        public MqttClient CreateMqttClient(MqttClientOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttClient(options, new MqttChannelCommunicationAdapter(new MqttTcpChannel(), new DefaultMqttV311PacketSerializer()));
-        }
-    }
-}

Frameworks/MQTTnet.NetCoreApp/MqttServerAdapter.cs

@@ -1,56 +0,0 @@
-using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Serializer;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public sealed class MqttServerAdapter : IMqttServerAdapter, IDisposable
-    {
-        private CancellationTokenSource _cancellationTokenSource;
-        private Socket _socket;
-
-        public event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
-
-        public void Start(MqttServerOptions options)
-        {
-            if (_socket != null) throw new InvalidOperationException("Server is already started.");
-
-            _cancellationTokenSource = new CancellationTokenSource();
-
-            _socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
-            _socket.Bind(new IPEndPoint(IPAddress.Any, options.Port));
-            _socket.Listen(options.ConnectionBacklog);
-            
-            Task.Run(async () => await AcceptConnectionsAsync(_cancellationTokenSource.Token), _cancellationTokenSource.Token);
-        }
-
-        public void Stop()
-        {
-            _cancellationTokenSource?.Dispose();
-            _cancellationTokenSource = null;
-
-            _socket?.Dispose();
-            _socket = null;
-        }
-
-        public void Dispose()
-        {
-            Stop();
-        }
-
-        private async Task AcceptConnectionsAsync(CancellationToken cancellationToken)
-        {
-            while (!cancellationToken.IsCancellationRequested)
-            {
-                var clientSocket = await _socket.AcceptAsync();
-                var clientAdapter = new MqttChannelCommunicationAdapter(new MqttTcpChannel(clientSocket), new DefaultMqttV311PacketSerializer());    
-                ClientConnected?.Invoke(this, new MqttClientConnectedEventArgs(clientSocket.RemoteEndPoint.ToString(), clientAdapter));
-            }
-        }
-    }
-}

Frameworks/MQTTnet.NetCoreApp/MqttServerFactory.cs

@@ -1,15 +0,0 @@
-using System;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public class MqttServerFactory
-    {
-        public MqttServer CreateMqttServer(MqttServerOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttServer(options, new MqttServerAdapter());
-        }
-    }
-}

Frameworks/MQTTnet.NetCoreApp/MqttTcpChannel.cs

@@ -1,81 +0,0 @@
-using System;
-using System.Net.Sockets;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Exceptions;
-
-namespace MQTTnet
-{
-    public class MqttTcpChannel : IMqttCommunicationChannel, IDisposable
-    {
-        private readonly Socket _socket;
-
-        public MqttTcpChannel()
-        {
-            _socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
-        }
-
-        public MqttTcpChannel(Socket socket)
-        {
-            _socket = socket ?? throw new ArgumentNullException(nameof(socket));
-        }
-
-        public async Task ConnectAsync(MqttClientOptions options)
-        {
-            try
-            {
-                await _socket.ConnectAsync(options.Server, options.Port);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task DisconnectAsync()
-        {
-            try
-            {
-                _socket.Dispose();
-                await Task.FromResult(0);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task WriteAsync(byte[] buffer)
-        {
-            if (buffer == null) throw new ArgumentNullException(nameof(buffer));
-
-            try
-            {
-                await _socket.SendAsync(new ArraySegment<byte>(buffer), SocketFlags.None);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task ReadAsync(byte[] buffer)
-        {
-            try
-            {
-                var buffer2 = new ArraySegment<byte>(buffer);
-                await _socket.ReceiveAsync(buffer2, SocketFlags.None);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public void Dispose()
-        {
-            _socket?.Dispose();
-        }
-    }
-}

Frameworks/MQTTnet.NetFramework/MQTTnet.NetFramework.csproj

@@ -1,123 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{A480EF90-0EAA-4D9A-B271-47A9C47F6F7D}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>MQTTnet</RootNamespace>
-    <AssemblyName>MQTTnet</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-    <TargetFrameworkProfile />
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <Prefer32Bit>false</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <Prefer32Bit>false</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Any CPU|AnyCPU'">
-    <OutputPath>bin\Any CPU\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>AnyCPU</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <OutputPath>bin\x86\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Any CPU|x86'">
-    <OutputPath>bin\x86\Any CPU\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Any CPU|x64'">
-    <OutputPath>bin\x64\Any CPU\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="MqttClientFactory.cs" />
-    <Compile Include="MqttServerAdapter.cs" />
-    <Compile Include="MqttServerFactory.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="MqttTcpChannel.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\MQTTnet.Core\MQTTnet.Core.csproj">
-      <Project>{2ecb99e4-72d0-4c23-99ba-93d511d3967d}</Project>
-      <Name>MQTTnet.Core</Name>
-    </ProjectReference>
-  </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-</Project>

Frameworks/MQTTnet.NetFramework/MqttClientFactory.cs

@@ -1,17 +0,0 @@
-using System;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Serializer;
-
-namespace MQTTnet
-{
-    public class MqttClientFactory
-    {
-        public MqttClient CreateMqttClient(MqttClientOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttClient(options, new MqttChannelCommunicationAdapter(new MqttTcpChannel(), new DefaultMqttV311PacketSerializer()));
-        }
-    }
-}

Frameworks/MQTTnet.NetFramework/MqttServerAdapter.cs

@@ -1,56 +0,0 @@
-using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Serializer;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public sealed class MqttServerAdapter : IMqttServerAdapter, IDisposable
-    {
-        private CancellationTokenSource _cancellationTokenSource;
-        private Socket _socket;
-
-        public event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
-
-        public void Start(MqttServerOptions options)
-        {
-            if (_socket != null) throw new InvalidOperationException("Server is already started.");
-
-            _cancellationTokenSource = new CancellationTokenSource();
-
-            _socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
-            _socket.Bind(new IPEndPoint(IPAddress.Any, options.Port));
-            _socket.Listen(options.ConnectionBacklog);
-            
-            Task.Run(async () => await AcceptConnectionsAsync(_cancellationTokenSource.Token), _cancellationTokenSource.Token);
-        }
-
-        public void Stop()
-        {
-            _cancellationTokenSource?.Dispose();
-            _cancellationTokenSource = null;
-
-            _socket?.Dispose();
-            _socket = null;
-        }
-
-        public void Dispose()
-        {
-            Stop();
-        }
-
-        private async Task AcceptConnectionsAsync(CancellationToken cancellationToken)
-        {
-            while (!cancellationToken.IsCancellationRequested)
-            {
-                var clientSocket = await Task.Factory.FromAsync(_socket.BeginAccept, _socket.EndAccept, null);
-                var clientAdapter = new MqttChannelCommunicationAdapter(new MqttTcpChannel(clientSocket), new DefaultMqttV311PacketSerializer());    
-                ClientConnected?.Invoke(this, new MqttClientConnectedEventArgs(clientSocket.RemoteEndPoint.ToString(), clientAdapter));
-            }
-        }
-    }
-}

Frameworks/MQTTnet.NetFramework/MqttServerFactory.cs

@@ -1,15 +0,0 @@
-using System;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public class MqttServerFactory
-    {
-        public MqttServer CreateMqttServer(MqttServerOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttServer(options, new MqttServerAdapter());
-        }
-    }
-}

Frameworks/MQTTnet.NetFramework/MqttTcpChannel.cs

@@ -1,85 +0,0 @@
-using System;
-using System.Net.Sockets;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Exceptions;
-
-namespace MQTTnet
-{
-    public class MqttTcpChannel : IMqttCommunicationChannel, IDisposable
-    {
-        private readonly Socket _socket;
-
-        public MqttTcpChannel()
-        {
-            _socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
-        }
-
-        public MqttTcpChannel(Socket socket)
-        {
-            _socket = socket ?? throw new ArgumentNullException(nameof(socket));
-        }
-
-        public async Task ConnectAsync(MqttClientOptions options)
-        {
-            try
-            {
-                await Task.Factory.FromAsync(_socket.BeginConnect, _socket.EndConnect, options.Server, options.Port, null);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task DisconnectAsync()
-        {
-            try
-            {
-                await Task.Factory.FromAsync(_socket.BeginDisconnect, _socket.EndDisconnect, true, null);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task WriteAsync(byte[] buffer)
-        {
-            if (buffer == null) throw new ArgumentNullException(nameof(buffer));
-
-            try
-            {
-                await Task.Factory.FromAsync(
-                    // ReSharper disable once AssignNullToNotNullAttribute
-                    _socket.BeginSend(buffer, 0, buffer.Length, SocketFlags.None, null, null),
-                    _socket.EndSend);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public async Task ReadAsync(byte[] buffer)
-        {
-            try
-            {
-                await Task.Factory.FromAsync(
-                    // ReSharper disable once AssignNullToNotNullAttribute
-                    _socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, null, null),
-                    _socket.EndReceive);
-            }
-            catch (SocketException exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-        }
-
-        public void Dispose()
-        {
-            _socket?.Dispose();
-        }
-    }
-}

Frameworks/MQTTnet.NetFramework/Properties/AssemblyInfo.cs

@@ -1,15 +0,0 @@
-using System.Reflection;
-using System.Runtime.InteropServices;
-
-[assembly: AssemblyTitle("MQTTnet")]
-[assembly: AssemblyDescription("MQTTnet for .NET Framework")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("Christian Kratky")]
-[assembly: AssemblyProduct("MQTTnet")]
-[assembly: AssemblyCopyright("Copyright © Christian Kratky 2016-2017")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-[assembly: ComVisible(false)]
-[assembly: Guid("a480ef90-0eaa-4d9a-b271-47a9c47f6f7d")]
-[assembly: AssemblyVersion("2.1.1.0")]
-[assembly: AssemblyFileVersion("2.1.1.0")]

Frameworks/MQTTnet.UniversalWindows/MqttClientFactory.cs

@@ -1,17 +0,0 @@
-using System;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Serializer;
-
-namespace MQTTnet
-{
-    public class MqttClientFactory
-    {
-        public MqttClient CreateMqttClient(MqttClientOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttClient(options, new MqttChannelCommunicationAdapter(new MqttTcpChannel(), new DefaultMqttV311PacketSerializer()));
-        }
-    }
-}

Frameworks/MQTTnet.UniversalWindows/MqttServerAdapter.cs

@@ -1,54 +0,0 @@
-using System;
-using System.Threading;
-using Windows.Networking.Sockets;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Serializer;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public sealed class MqttServerAdapter : IMqttServerAdapter, IDisposable
-    {
-        private CancellationTokenSource _cancellationTokenSource;
-        private StreamSocketListener _socket;
-
-        public event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
-
-        public void Start(MqttServerOptions options)
-        {
-            if (_socket != null) throw new InvalidOperationException("Server is already started.");
-
-            _cancellationTokenSource = new CancellationTokenSource();
-
-            _socket = new StreamSocketListener();
-            _socket.BindServiceNameAsync(options.Port.ToString()).AsTask().Wait();
-            _socket.ConnectionReceived += ConnectionReceived;
-        }
-
-        private void ConnectionReceived(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
-        {
-            var clientAdapter = new MqttChannelCommunicationAdapter(new MqttTcpChannel(args.Socket), new DefaultMqttV311PacketSerializer());
-
-            var identifier = $"{args.Socket.Information.RemoteAddress}:{args.Socket.Information.RemotePort}";
-            ClientConnected?.Invoke(this, new MqttClientConnectedEventArgs(identifier, clientAdapter));
-        }
-
-        public void Stop()
-        {
-            _cancellationTokenSource?.Dispose();
-
-            if (_socket != null)
-            {
-                _socket.ConnectionReceived -= ConnectionReceived;
-            }
-
-            _socket?.Dispose();
-            _socket = null;
-        }
-
-        public void Dispose()
-        {
-            Stop();
-        }
-    }
-}

Frameworks/MQTTnet.UniversalWindows/MqttServerFactory.cs

@@ -1,15 +0,0 @@
-using System;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet
-{
-    public class MqttServerFactory
-    {
-        public MqttServer CreateMqttServer(MqttServerOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            return new MqttServer(options, new MqttServerAdapter());
-        }
-    }
-}

Frameworks/MQTTnet.UniversalWindows/MqttTcpChannel.cs

@@ -1,62 +0,0 @@
-using System;
-using System.Runtime.InteropServices.WindowsRuntime;
-using System.Threading.Tasks;
-using Windows.Networking;
-using Windows.Networking.Sockets;
-using Windows.Storage.Streams;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Client;
-using Buffer = Windows.Storage.Streams.Buffer;
-
-namespace MQTTnet
-{
-    public sealed class MqttTcpChannel : IMqttCommunicationChannel, IDisposable
-    {
-        private readonly StreamSocket _socket;
-
-        public MqttTcpChannel()
-        {
-            _socket = new StreamSocket();
-        }
-
-        public MqttTcpChannel(StreamSocket socket)
-        {
-            _socket = socket ?? throw new ArgumentNullException(nameof(socket));
-        }
-
-        public async Task ConnectAsync(MqttClientOptions options)
-        {
-            if (options == null) throw new ArgumentNullException(nameof(options));
-
-            await _socket.ConnectAsync(new HostName(options.Server), options.Port.ToString());
-        }
-
-        public async Task DisconnectAsync()
-        {
-            await _socket.CancelIOAsync();
-            _socket.Dispose();
-        }
-
-        public async Task WriteAsync(byte[] buffer)
-        {
-            if (buffer == null) throw new ArgumentNullException(nameof(buffer));
-
-            await _socket.OutputStream.WriteAsync(buffer.AsBuffer());
-            await _socket.OutputStream.FlushAsync();
-        }
-
-        public async Task ReadAsync(byte[] buffer)
-        {
-            var buffer2 = new Buffer((uint)buffer.Length);
-            await _socket.InputStream.ReadAsync(buffer2, (uint)buffer.Length, InputStreamOptions.None);
-
-            var array2 = buffer2.ToArray();
-            Array.Copy(array2, buffer, array2.Length);
-        }
-
-        public void Dispose()
-        {
-            _socket?.Dispose();
-        }
-    }
-}

Frameworks/MQTTnet.UniversalWindows/Properties/AssemblyInfo.cs

@@ -1,14 +0,0 @@
-using System.Reflection;
-using System.Runtime.InteropServices;
-
-[assembly: AssemblyTitle("MQTTnet")]
-[assembly: AssemblyDescription("MQTTnet for Universal Windows")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("Christian Kratky")]
-[assembly: AssemblyProduct("MQTTnet")]
-[assembly: AssemblyCopyright("Copyright © Christian Kratky 2016-2017")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-[assembly: ComVisible(false)]
-[assembly: AssemblyVersion("2.1.1.0")]
-[assembly: AssemblyFileVersion("2.1.1.0")]

Frameworks/MQTTnet.UniversalWindows/Properties/MQTTnet.Universal.rd.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
-  <Library Name="MQTTnet.Universal">
-  </Library>
-</Directives>

Frameworks/MQTTnet.UniversalWindows/project.json

@@ -1,17 +0,0 @@
-{
-  "dependencies": {
-    "Microsoft.NETCore.UniversalWindowsPlatform": "5.1.0"
-  },
-  "frameworks": {
-    "uap10.0": {},
-    "netstandard1.1": {}
-  },
-  "runtimes": {
-    "win10-arm": {},
-    "win10-arm-aot": {},
-    "win10-x86": {},
-    "win10-x86-aot": {},
-    "win10-x64": {},
-    "win10-x64-aot": {}
-  }
-}

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017 Christian
+Copyright (c) 2017 Christian Kratky
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

MQTTnet.Core/Adapter/IMqttCommunicationAdapter.cs

@@ -1,18 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Adapter
-{
-    public interface IMqttCommunicationAdapter
-    {
-        Task ConnectAsync(MqttClientOptions options, TimeSpan timeout);
-
-        Task DisconnectAsync();
-
-        Task SendPacketAsync(MqttBasePacket packet, TimeSpan timeout);
-
-        Task<MqttBasePacket> ReceivePacketAsync(TimeSpan timeout);
-    }
-}

MQTTnet.Core/Adapter/IMqttServerAdapter.cs

@@ -1,14 +0,0 @@
-using System;
-using MQTTnet.Core.Server;
-
-namespace MQTTnet.Core.Adapter
-{
-    public interface IMqttServerAdapter
-    {
-        event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
-
-        void Start(MqttServerOptions options);
-
-        void Stop();
-    }
-}

MQTTnet.Core/Adapter/MqttChannelCommunicationAdapter.cs

@@ -1,88 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Client;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Serializer;
-
-namespace MQTTnet.Core.Adapter
-{
-    public class MqttChannelCommunicationAdapter : IMqttCommunicationAdapter
-    {
-        private readonly IMqttPacketSerializer _serializer;
-        private readonly IMqttCommunicationChannel _channel;
-
-        public MqttChannelCommunicationAdapter(IMqttCommunicationChannel channel, IMqttPacketSerializer serializer)
-        {
-            _channel = channel ?? throw new ArgumentNullException(nameof(channel));
-            _serializer = serializer ?? throw new ArgumentNullException(nameof(serializer));
-        }
-
-        public async Task ConnectAsync(MqttClientOptions options, TimeSpan timeout)
-        {
-            var task = _channel.ConnectAsync(options);
-            if (await Task.WhenAny(Task.Delay(timeout), task) != task)
-            {
-                throw new MqttCommunicationTimedOutException();
-            }
-        }
-
-        public async Task DisconnectAsync()
-        {
-            await _channel.DisconnectAsync();
-        }
-
-        public async Task SendPacketAsync(MqttBasePacket packet, TimeSpan timeout)
-        {
-            MqttTrace.Information(nameof(MqttChannelCommunicationAdapter), $"TX >>> {packet} [Timeout={timeout}]");
-
-            bool hasTimeout;
-            try
-            {
-                var task = _serializer.SerializeAsync(packet, _channel);
-                hasTimeout = await Task.WhenAny(Task.Delay(timeout), task) != task;
-            }
-            catch (Exception exception)
-            {
-                throw new MqttCommunicationException(exception);
-            }
-
-            if (hasTimeout)
-            {
-                throw new MqttCommunicationTimedOutException();
-            }
-        }
-
-        public async Task<MqttBasePacket> ReceivePacketAsync(TimeSpan timeout)
-        {
-            MqttBasePacket packet;
-            if (timeout > TimeSpan.Zero)
-            {
-                var workerTask = _serializer.DeserializeAsync(_channel);
-                var timeoutTask = Task.Delay(timeout);
-                var hasTimeout = Task.WhenAny(timeoutTask, workerTask) == timeoutTask;
-
-                if (hasTimeout)
-                {
-                    throw new MqttCommunicationTimedOutException();
-                }
-
-                packet = workerTask.Result;
-            }
-            else
-            {
-                packet = await _serializer.DeserializeAsync(_channel);
-            }
-
-            if (packet == null)
-            {
-                throw new MqttProtocolViolationException("Received malformed packet.");
-            }
-
-            MqttTrace.Information(nameof(MqttChannelCommunicationAdapter), $"RX <<< {packet}");
-            return packet;
-        }
-    }
-}

MQTTnet.Core/Adapter/MqttClientConnectedEventArgs.cs

@@ -1,17 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Adapter
-{
-    public class MqttClientConnectedEventArgs : EventArgs
-    {
-        public MqttClientConnectedEventArgs(string identifier, IMqttCommunicationAdapter clientAdapter)
-        {
-            Identifier = identifier ?? throw new ArgumentNullException(nameof(identifier));
-            ClientAdapter = clientAdapter ?? throw new ArgumentNullException(nameof(clientAdapter));
-        }
-
-        public string Identifier { get; }
-
-        public IMqttCommunicationAdapter ClientAdapter { get; }
-    }
-}

MQTTnet.Core/Channel/IMqttCommunicationChannel.cs

@@ -1,16 +0,0 @@
-using System.Threading.Tasks;
-using MQTTnet.Core.Client;
-
-namespace MQTTnet.Core.Channel
-{
-    public interface IMqttCommunicationChannel
-    {
-        Task ConnectAsync(MqttClientOptions options);
-
-        Task DisconnectAsync();
-
-        Task WriteAsync(byte[] buffer);
-
-        Task ReadAsync(byte[] buffer);
-    }
-}

MQTTnet.Core/Client/MqttClient.cs

@@ -1,371 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Internal;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Client
-{
-    public class MqttClient
-    {
-        private readonly ConcurrentDictionary<ushort, MqttPublishPacket> _pendingExactlyOncePublishPackets = new ConcurrentDictionary<ushort, MqttPublishPacket>();
-        private readonly HashSet<ushort> _processedPublishPackets = new HashSet<ushort>();
-
-        private readonly MqttPacketDispatcher _packetDispatcher = new MqttPacketDispatcher();
-        private readonly MqttClientOptions _options;
-        private readonly IMqttCommunicationAdapter _adapter;
-
-        private int _latestPacketIdentifier;
-        private CancellationTokenSource _cancellationTokenSource;
-
-        public MqttClient(MqttClientOptions options, IMqttCommunicationAdapter adapter)
-        {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
-            _adapter = adapter ?? throw new ArgumentNullException(nameof(adapter));
-        }
-
-        public event EventHandler Connected;
-
-        public event EventHandler Disconnected;
-
-        public event EventHandler<MqttApplicationMessageReceivedEventArgs> ApplicationMessageReceived;
-
-        public bool IsConnected { get; private set; }
-
-        public async Task ConnectAsync(MqttApplicationMessage willApplicationMessage = null)
-        {
-            MqttTrace.Verbose(nameof(MqttClient), "Trying to connect.");
-
-            if (IsConnected)
-            {
-                throw new MqttProtocolViolationException("It is not allowed to connect with a server after the connection is established.");
-            }
-
-            var connectPacket = new MqttConnectPacket
-            {
-                ClientId = _options.ClientId,
-                Username = _options.UserName,
-                Password = _options.Password,
-                CleanSession = _options.CleanSession,
-                KeepAlivePeriod = (ushort)_options.KeepAlivePeriod.TotalSeconds,
-                WillMessage = willApplicationMessage
-            };
-
-            await _adapter.ConnectAsync(_options, _options.DefaultCommunicationTimeout);
-            MqttTrace.Verbose(nameof(MqttClient), "Connection with server established.");
-
-            _cancellationTokenSource = new CancellationTokenSource();
-            _latestPacketIdentifier = 0;
-            _processedPublishPackets.Clear();
-            _packetDispatcher.Reset();
-            IsConnected = true;
-
-            Task.Run(() => ReceivePackets(_cancellationTokenSource.Token), _cancellationTokenSource.Token).Forget();
-
-            var response = await SendAndReceiveAsync<MqttConnAckPacket>(connectPacket);
-            if (response.ConnectReturnCode != MqttConnectReturnCode.ConnectionAccepted)
-            {
-                throw new MqttConnectingFailedException(response.ConnectReturnCode);
-            }
-
-            if (_options.KeepAlivePeriod != TimeSpan.Zero)
-            {
-                Task.Run(() => SendKeepAliveMessagesAsync(_cancellationTokenSource.Token), _cancellationTokenSource.Token).Forget();
-            }
-
-            Connected?.Invoke(this, EventArgs.Empty);
-        }
-
-        public async Task DisconnectAsync()
-        {
-            await SendAsync(new MqttDisconnectPacket());
-            await DisconnectInternalAsync();
-        }
-
-        public Task<IList<MqttSubscribeResult>> SubscribeAsync(params TopicFilter[] topicFilters)
-        {
-            if (topicFilters == null) throw new ArgumentNullException(nameof(topicFilters));
-
-            return SubscribeAsync(topicFilters.ToList());
-        }
-
-        public async Task<IList<MqttSubscribeResult>> SubscribeAsync(IList<TopicFilter> topicFilters)
-        {
-            if (topicFilters == null) throw new ArgumentNullException(nameof(topicFilters));
-            if (!topicFilters.Any()) throw new MqttProtocolViolationException("At least one topic filter must be set [MQTT-3.8.3-3].");
-            ThrowIfNotConnected();
-
-            var subscribePacket = new MqttSubscribePacket
-            {
-                PacketIdentifier = GetNewPacketIdentifier(),
-                TopicFilters = topicFilters
-            };
-
-            var response = await SendAndReceiveAsync<MqttSubAckPacket>(subscribePacket);
-
-            if (response.SubscribeReturnCodes.Count != topicFilters.Count)
-            {
-                throw new MqttProtocolViolationException("The return codes are not matching the topic filters [MQTT-3.9.3-1].");
-            }
-
-            return topicFilters.Select((t, i) => new MqttSubscribeResult(t, response.SubscribeReturnCodes[i])).ToList();
-        }
-
-        public Task Unsubscribe(params string[] topicFilters)
-        {
-            if (topicFilters == null) throw new ArgumentNullException(nameof(topicFilters));
-
-            return Unsubscribe(topicFilters.ToList());
-        }
-
-        public async Task Unsubscribe(IList<string> topicFilters)
-        {
-            if (topicFilters == null) throw new ArgumentNullException(nameof(topicFilters));
-            if (!topicFilters.Any()) throw new MqttProtocolViolationException("At least one topic filter must be set [MQTT-3.10.3-2].");
-            ThrowIfNotConnected();
-
-            var unsubscribePacket = new MqttUnsubscribePacket
-            {
-                PacketIdentifier = GetNewPacketIdentifier(),
-                TopicFilters = topicFilters
-            };
-
-            await SendAndReceiveAsync<MqttUnsubAckPacket>(unsubscribePacket);
-        }
-
-        public async Task PublishAsync(MqttApplicationMessage applicationMessage)
-        {
-            if (applicationMessage == null) throw new ArgumentNullException(nameof(applicationMessage));
-            ThrowIfNotConnected();
-
-            var publishPacket = applicationMessage.ToPublishPacket();
-
-            if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtMostOnce)
-            {
-                await SendAsync(publishPacket);
-            }
-            else if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtLeastOnce)
-            {
-                publishPacket.PacketIdentifier = GetNewPacketIdentifier();
-                await SendAndReceiveAsync<MqttPubAckPacket>(publishPacket);
-            }
-            else if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.ExactlyOnce)
-            {
-                publishPacket.PacketIdentifier = GetNewPacketIdentifier();
-                await SendAndReceiveAsync<MqttPubRecPacket>(publishPacket);
-                await SendAsync(publishPacket.CreateResponse<MqttPubCompPacket>());
-            }
-        }
-
-        private void ThrowIfNotConnected()
-        {
-            if (!IsConnected) throw new MqttCommunicationException("The client is not connected.");
-        }
-
-        private async Task DisconnectInternalAsync()
-        {
-            try
-            {
-                await _adapter.DisconnectAsync();
-            }
-            catch
-            {
-            }
-            finally
-            {
-                _cancellationTokenSource?.Cancel();
-                IsConnected = false;
-                Disconnected?.Invoke(this, EventArgs.Empty);
-            }
-        }
-
-        private async void ProcessReceivedPacket(MqttBasePacket mqttPacket)
-        {
-            try
-            {
-                if (mqttPacket is MqttPingReqPacket)
-                {
-                    await SendAsync(new MqttPingRespPacket());
-                    return;
-                }
-
-                if (mqttPacket is MqttDisconnectPacket)
-                {
-                    await DisconnectAsync();
-                    return;
-                }
-
-                var publishPacket = mqttPacket as MqttPublishPacket;
-                if (publishPacket != null)
-                {
-                    await ProcessReceivedPublishPacket(publishPacket);
-                    return;
-                }
-
-                var pubRelPacket = mqttPacket as MqttPubRelPacket;
-                if (pubRelPacket != null)
-                {
-                    await ProcessReceivedPubRelPacket(pubRelPacket);
-                    return;
-                }
-
-                _packetDispatcher.Dispatch(mqttPacket);
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Error(nameof(MqttClient), exception, "Error while processing received packet.");
-            }
-        }
-
-        private void FireApplicationMessageReceivedEvent(MqttPublishPacket publishPacket)
-        {
-            if (publishPacket.QualityOfServiceLevel != MqttQualityOfServiceLevel.AtMostOnce)
-            {
-                _processedPublishPackets.Add(publishPacket.PacketIdentifier);
-            }
-
-            var applicationMessage = new MqttApplicationMessage(
-                publishPacket.Topic,
-                publishPacket.Payload,
-                publishPacket.QualityOfServiceLevel,
-                publishPacket.Retain
-            );
-
-            ApplicationMessageReceived?.Invoke(this, new MqttApplicationMessageReceivedEventArgs(applicationMessage));
-        }
-
-        private async Task ProcessReceivedPublishPacket(MqttPublishPacket publishPacket)
-        {
-            if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtMostOnce)
-            {
-                FireApplicationMessageReceivedEvent(publishPacket);
-            }
-            else
-            {
-                if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtLeastOnce)
-                {
-                    FireApplicationMessageReceivedEvent(publishPacket);
-                    await SendAsync(new MqttPubAckPacket { PacketIdentifier = publishPacket.PacketIdentifier });
-                }
-                else if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.ExactlyOnce)
-                {
-                    _pendingExactlyOncePublishPackets[publishPacket.PacketIdentifier] = publishPacket;
-                    await SendAsync(new MqttPubRecPacket { PacketIdentifier = publishPacket.PacketIdentifier });
-                }
-            }
-        }
-
-        private async Task ProcessReceivedPubRelPacket(MqttPubRelPacket pubRelPacket)
-        {
-            MqttPublishPacket originalPublishPacket;
-            if (!_pendingExactlyOncePublishPackets.TryRemove(pubRelPacket.PacketIdentifier, out originalPublishPacket))
-            {
-                throw new MqttCommunicationException();
-            }
-
-            await SendAsync(originalPublishPacket.CreateResponse<MqttPubCompPacket>());
-
-            FireApplicationMessageReceivedEvent(originalPublishPacket);
-        }
-
-        private Task SendAsync(MqttBasePacket packet)
-        {
-            return _adapter.SendPacketAsync(packet, _options.DefaultCommunicationTimeout);
-        }
-
-        private async Task<TResponsePacket> SendAndReceiveAsync<TResponsePacket>(MqttBasePacket requestPacket) where TResponsePacket : MqttBasePacket
-        {
-            bool ResponsePacketSelector(MqttBasePacket p)
-            {
-                var p1 = p as TResponsePacket;
-                if (p1 == null)
-                {
-                    return false;
-                }
-
-                var pi1 = requestPacket as IPacketWithIdentifier;
-                var pi2 = p as IPacketWithIdentifier;
-
-                if (pi1 != null && pi2 != null)
-                {
-                    if (pi1.PacketIdentifier != pi2.PacketIdentifier)
-                    {
-                        return false;
-                    }
-                }
-
-                return true;
-            }
-
-            await _adapter.SendPacketAsync(requestPacket, _options.DefaultCommunicationTimeout);
-            return (TResponsePacket)await _packetDispatcher.WaitForPacketAsync(ResponsePacketSelector, _options.DefaultCommunicationTimeout);
-        }
-
-        private ushort GetNewPacketIdentifier()
-        {
-            return (ushort)Interlocked.Increment(ref _latestPacketIdentifier);
-        }
-
-        private async Task SendKeepAliveMessagesAsync(CancellationToken cancellationToken)
-        {
-            MqttTrace.Information(nameof(MqttClient), "Start sending keep alive packets.");
-
-            try
-            {
-                while (!cancellationToken.IsCancellationRequested)
-                {
-                    await Task.Delay(_options.KeepAlivePeriod, cancellationToken);
-                    await SendAndReceiveAsync<MqttPingRespPacket>(new MqttPingReqPacket());
-                }
-            }
-            catch (MqttCommunicationException exception)
-            {
-                MqttTrace.Warning(nameof(MqttClient), exception, "MQTT communication error while receiving packets.");
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Warning(nameof(MqttClient), exception, "Error while sending/receiving keep alive packets.");
-            }
-            finally
-            {
-                MqttTrace.Information(nameof(MqttClient), "Stopped sending keep alive packets.");
-                await DisconnectInternalAsync();
-            }
-        }
-
-        private async Task ReceivePackets(CancellationToken cancellationToken)
-        {
-            MqttTrace.Information(nameof(MqttClient), "Start receiving packets.");
-            try
-            {
-                while (!cancellationToken.IsCancellationRequested)
-                {
-                    var mqttPacket = await _adapter.ReceivePacketAsync(TimeSpan.Zero);
-                    MqttTrace.Information(nameof(MqttClient), $"Received <<< {mqttPacket}");
-
-                    Task.Run(() => ProcessReceivedPacket(mqttPacket), cancellationToken).Forget();
-                }
-            }
-            catch (MqttCommunicationException exception)
-            {
-                MqttTrace.Warning(nameof(MqttClient), exception, "MQTT communication error while receiving packets.");
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Error(nameof(MqttClient), exception, "Error while receiving packets.");
-            }
-            finally
-            {
-                MqttTrace.Information(nameof(MqttClient), "Stopped receiving packets.");
-                await DisconnectInternalAsync();
-            }
-        }
-    }
-}

MQTTnet.Core/Client/MqttClientOptions.cs

@@ -1,23 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Client
-{
-    public class MqttClientOptions
-    {
-        public string Server { get; set; }
-
-        public int Port { get; set; } = 1883;
-
-        public string UserName { get; set; }
-
-        public string Password { get; set; }
-
-        public string ClientId { get; set; } = Guid.NewGuid().ToString().Replace("-", string.Empty);
-
-        public bool CleanSession { get; set; } = true;
-
-        public TimeSpan KeepAlivePeriod { get; set; } = TimeSpan.FromSeconds(5);
-
-        public TimeSpan DefaultCommunicationTimeout { get; set; } = TimeSpan.FromSeconds(10);
-    }
-}

MQTTnet.Core/Client/MqttPacketAwaiter.cs

@@ -1,16 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Client
-{
-    public class MqttPacketAwaiter : TaskCompletionSource<MqttBasePacket>
-    {
-        public MqttPacketAwaiter(Func<MqttBasePacket, bool> packetSelector)
-        {
-            PacketSelector = packetSelector ?? throw new ArgumentNullException(nameof(packetSelector));
-        }
-
-        public Func<MqttBasePacket, bool> PacketSelector { get; }
-    }
-}

MQTTnet.Core/Client/MqttPacketDispatcher.cs

@@ -1,112 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Client
-{
-    public class MqttPacketDispatcher
-    {
-        private readonly object _syncRoot = new object();
-        private readonly List<MqttBasePacket> _receivedPackets = new List<MqttBasePacket>();
-        private readonly List<MqttPacketAwaiter> _packetAwaiters = new List<MqttPacketAwaiter>();
-
-        public async Task<MqttBasePacket> WaitForPacketAsync(Func<MqttBasePacket, bool> selector, TimeSpan timeout)
-        {
-            if (selector == null) throw new ArgumentNullException(nameof(selector));
-
-            var packetAwaiter = AddPacketAwaiter(selector);
-            DispatchPendingPackets();
-
-            var hasTimeout = await Task.WhenAny(Task.Delay(timeout), packetAwaiter.Task) != packetAwaiter.Task;
-            RemovePacketAwaiter(packetAwaiter);
-
-            if (hasTimeout)
-            {
-                MqttTrace.Warning(nameof(MqttPacketDispatcher), "Timeout while waiting for packet.");
-                throw new MqttCommunicationTimedOutException();
-            }
-
-            return packetAwaiter.Task.Result;
-        }
-
-        public void Dispatch(MqttBasePacket packet)
-        {
-            if (packet == null) throw new ArgumentNullException(nameof(packet));
-
-            var packetDispatched = false;
-            foreach (var packetAwaiter in GetPacketAwaiters())
-            {
-                if (packetAwaiter.PacketSelector(packet))
-                {
-                    packetAwaiter.SetResult(packet);
-                    packetDispatched = true;
-                    break;
-                }
-            }
-
-            lock (_syncRoot)
-            {
-                if (!packetDispatched)
-                {
-                    _receivedPackets.Add(packet);
-                }
-                else
-                {
-                    _receivedPackets.Remove(packet);
-                }
-            }
-        }
-
-        public void Reset()
-        {
-            lock (_syncRoot)
-            {
-                _packetAwaiters.Clear();
-                _receivedPackets.Clear();
-            }
-        }
-
-        private List<MqttPacketAwaiter> GetPacketAwaiters()
-        {
-            lock (_packetAwaiters)
-            {
-                return new List<MqttPacketAwaiter>(_packetAwaiters);
-            }
-        }
-
-        private MqttPacketAwaiter AddPacketAwaiter(Func<MqttBasePacket, bool> selector)
-        {
-            lock (_syncRoot)
-            {
-                var packetAwaiter = new MqttPacketAwaiter(selector);
-                _packetAwaiters.Add(packetAwaiter);
-                return packetAwaiter;
-            }
-        }
-
-        private void RemovePacketAwaiter(MqttPacketAwaiter packetAwaiter)
-        {
-            lock (_syncRoot)
-            {
-                _packetAwaiters.Remove(packetAwaiter);
-            }
-        }
-
-        private void DispatchPendingPackets()
-        {
-            List<MqttBasePacket> receivedPackets;
-            lock (_syncRoot)
-            {
-                receivedPackets = new List<MqttBasePacket>(_receivedPackets);
-            }
-
-            foreach (var pendingPacket in receivedPackets)
-            {
-                Dispatch(pendingPacket);
-            }
-        }
-    }
-}

MQTTnet.Core/Diagnostics/MqttTrace.cs

@@ -1,44 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Diagnostics
-{
-    public static class MqttTrace
-    {
-        public static event EventHandler<MqttTraceMessagePublishedEventArgs> TraceMessagePublished;
-
-        public static void Verbose(string source, string message)
-        {
-            Publish(source, MqttTraceLevel.Verbose, null, message);
-        }
-
-        public static void Information(string source, string message)
-        {
-            Publish(source, MqttTraceLevel.Information, null, message);
-        }
-
-        public static void Warning(string source, string message)
-        {
-            Publish(source, MqttTraceLevel.Warning, null, message);
-        }
-
-        public static void Warning(string source, Exception exception, string message)
-        {
-            Publish(source, MqttTraceLevel.Warning, exception, message);
-        }
-
-        public static void Error(string source, string message)
-        {
-            Publish(source, MqttTraceLevel.Error, null, message);
-        }
-
-        public static void Error(string source, Exception exception, string message)
-        {
-            Publish(source, MqttTraceLevel.Error, exception, message);
-        }
-
-        private static void Publish(string source, MqttTraceLevel traceLevel, Exception exception, string message)
-        {
-            TraceMessagePublished?.Invoke(null, new MqttTraceMessagePublishedEventArgs(Environment.CurrentManagedThreadId, source, traceLevel, message, exception));
-        }
-    }
-}

MQTTnet.Core/Diagnostics/MqttTraceLevel.cs

@@ -1,10 +0,0 @@
-namespace MQTTnet.Core.Diagnostics
-{
-    public enum  MqttTraceLevel
-    {
-        Verbose,
-        Information,
-        Warning,
-        Error
-    }
-}

MQTTnet.Core/Diagnostics/MqttTraceMessagePublishedEventArgs.cs

@@ -1,26 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Diagnostics
-{
-    public class MqttTraceMessagePublishedEventArgs : EventArgs
-    {
-        public MqttTraceMessagePublishedEventArgs(int threadId, string source, MqttTraceLevel level, string message, Exception exception)
-        {
-            ThreadId = threadId;
-            Source = source;
-            Level = level;
-            Message = message;
-            Exception = exception;
-        }
-
-        public int ThreadId { get; }
-
-        public string Source { get; }
-
-        public MqttTraceLevel Level { get; }
-
-        public string Message { get; }
-
-        public Exception Exception { get; }
-    }
-}

MQTTnet.Core/Exceptions/MqttCommunicationTimedOutException.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Exceptions
-{
-    public class MqttCommunicationTimedOutException : MqttCommunicationException
-    {
-    }
-}

MQTTnet.Core/Internal/AsyncAutoResetEvent.cs

@@ -1,32 +0,0 @@
-using System.Collections.Generic;
-using System.Threading.Tasks;
-
-namespace MQTTnet.Core.Internal
-{
-    public class AsyncGate
-    {
-        private readonly Queue<TaskCompletionSource<bool>> _waitingTasks = new Queue<TaskCompletionSource<bool>>();
-
-        public Task WaitOneAsync()
-        {
-            var tcs = new TaskCompletionSource<bool>();
-            lock (_waitingTasks)
-            {
-                _waitingTasks.Enqueue(tcs);
-            }
-
-            return tcs.Task;
-        }
-
-        public void Set()
-        {
-            lock (_waitingTasks)
-            {
-                if (_waitingTasks.Count > 0)
-                {
-                    _waitingTasks.Dequeue().SetResult(true);
-                }
-            }
-        }
-    }
-}

MQTTnet.Core/Internal/TaskExtensions.cs

@@ -1,11 +0,0 @@
-using System.Threading.Tasks;
-
-namespace MQTTnet.Core.Internal
-{
-    internal static class TaskExtensions
-    {
-        public static void Forget(this Task task)
-        {
-        }
-    }
-}

MQTTnet.Core/MQTTnet.Core.csproj

@@ -1,34 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netstandard1.1</TargetFramework>
-    <AssemblyName>MQTTnet.Core</AssemblyName>
-    <RootNamespace>MQTTnet.Core</RootNamespace>
-    <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
-    <Description>MQTTnet is a .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker).</Description>
-    <Product>MQTTnet</Product>
-    <Company>Christian Kratky</Company>
-    <Authors>Christian Kratky</Authors>
-    <Version>2.1.2.0</Version>
-    <PackageId>MQTTnet.Core</PackageId>
-    <Copyright>Copyright © Christian Kratky 2016-2017</Copyright>
-    <PackageProjectUrl>https://github.com/chkr1011/MQTTnet</PackageProjectUrl>
-    <PackageIconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</PackageIconUrl>
-    <RepositoryUrl>https://github.com/chkr1011/MQTTnet</RepositoryUrl>
-    <PackageTags>MQTT MQTTClient MQTTServer MQTTBroker Broker</PackageTags>
-    <FileVersion>2.1.2.0</FileVersion>
-    <AssemblyVersion>2.1.2.0</AssemblyVersion>
-    <PackageLicenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</PackageLicenseUrl>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|AnyCPU'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|x64'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x86'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x86'" />
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Any CPU|x86'" />
-
-</Project>

MQTTnet.Core/MqttApplicationMessage.cs

@@ -1,24 +0,0 @@
-using System;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core
-{
-    public class MqttApplicationMessage
-    {
-        public MqttApplicationMessage(string topic, byte[] payload, MqttQualityOfServiceLevel qualityOfServiceLevel, bool retain)
-        {
-            Topic = topic ?? throw new ArgumentNullException(nameof(topic));
-            Payload = payload ?? throw new ArgumentNullException(nameof(payload));
-            QualityOfServiceLevel = qualityOfServiceLevel;
-            Retain = retain;
-        }
-
-        public string Topic { get; }
-
-        public byte[] Payload { get; }
-
-        public MqttQualityOfServiceLevel QualityOfServiceLevel { get; }
-
-        public bool Retain { get; }
-    }
-}

MQTTnet.Core/Packets/IPacketWithPacketIdentifier.cs

@@ -1,7 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public interface IPacketWithIdentifier
-    {
-        ushort PacketIdentifier { get; set; }
-    }
-}

MQTTnet.Core/Packets/MqttBasePacket.cs

@@ -1,25 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Packets
-{
-    public abstract class MqttBasePacket
-    {
-        public TResponsePacket CreateResponse<TResponsePacket>()
-        {
-            var responsePacket = Activator.CreateInstance<TResponsePacket>();
-            var responsePacketWithIdentifier = responsePacket as IPacketWithIdentifier;
-            if (responsePacketWithIdentifier != null)
-            {
-                var requestPacketWithIdentifier = this as IPacketWithIdentifier;
-                if (requestPacketWithIdentifier == null)
-                {
-                    throw new InvalidOperationException("Response packet has PacketIdentifier but request packet does not.");
-                }
-
-                responsePacketWithIdentifier.PacketIdentifier = requestPacketWithIdentifier.PacketIdentifier;
-            }
-
-            return responsePacket;
-        }
-    }
-}

MQTTnet.Core/Packets/MqttBasePublishPacket.cs

@@ -1,7 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttBasePublishPacket : MqttBasePacket, IPacketWithIdentifier
-    {
-        public ushort PacketIdentifier { get; set; }
-    }
-}

MQTTnet.Core/Packets/MqttDisconnectPacket.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttDisconnectPacket : MqttBasePacket
-    {
-    }
-}

MQTTnet.Core/Packets/MqttPubAckPacket.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttPubAckPacket : MqttBasePublishPacket
-    {
-    }
-}

MQTTnet.Core/Packets/MqttPubCompPacket.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttPubCompPacket : MqttBasePublishPacket
-    {
-    }
-}

MQTTnet.Core/Packets/MqttPubRecPacket.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttPubRecPacket : MqttBasePublishPacket
-    {
-    }
-}

MQTTnet.Core/Packets/MqttPubRelPacket.cs

@@ -1,6 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttPubRelPacket : MqttBasePublishPacket
-    {
-    }
-}

MQTTnet.Core/Packets/MqttSubAckPacket.cs

@@ -1,20 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Packets
-{
-    public class MqttSubAckPacket : MqttBasePacket, IPacketWithIdentifier
-    {
-        public ushort PacketIdentifier { get; set; }
-
-        public IList<MqttSubscribeReturnCode> SubscribeReturnCodes { get; set; } = new List<MqttSubscribeReturnCode>();
-
-        public override string ToString()
-        {
-            var subscribeReturnCodesText = string.Join(",", SubscribeReturnCodes.Select(f => f.ToString()));
-            return
-                $"{nameof(MqttSubAckPacket)} [PacketIdentifier={PacketIdentifier}] [SubscribeReturnCodes={subscribeReturnCodesText}]";
-        }
-    }
-}

MQTTnet.Core/Packets/MqttSubscribePacket.cs

@@ -1,19 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-
-namespace MQTTnet.Core.Packets
-{
-    public class MqttSubscribePacket : MqttBasePacket, IPacketWithIdentifier
-    {
-        public ushort PacketIdentifier { get; set; }
-        
-        public IList<TopicFilter> TopicFilters { get; set; } = new List<TopicFilter>();
-
-        public override string ToString()
-        {
-            var topicFiltersText = string.Join(",", TopicFilters.Select(f => $"{f.Topic}@{f.QualityOfServiceLevel}"));
-            return
-                $"{nameof(MqttSubscribePacket)} [PacketIdentifier={PacketIdentifier}] [TopicFilters={topicFiltersText}]";
-        }
-    }
-}

MQTTnet.Core/Packets/MqttUnsubAckPacket.cs

@@ -1,7 +0,0 @@
-namespace MQTTnet.Core.Packets
-{
-    public class MqttUnsubAckPacket : MqttBasePacket, IPacketWithIdentifier
-    {
-        public ushort PacketIdentifier { get; set; }
-    }
-}

MQTTnet.Core/Packets/MqttUnsubscribe.cs

@@ -1,11 +0,0 @@
-using System.Collections.Generic;
-
-namespace MQTTnet.Core.Packets
-{
-    public class MqttUnsubscribePacket : MqttBasePacket, IPacketWithIdentifier
-    {
-        public ushort PacketIdentifier { get; set; }
-        
-        public IList<string> TopicFilters { get; set; } = new List<string>();
-    }
-}

MQTTnet.Core/Serializer/ByteReader.cs

@@ -1,48 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Serializer
-{
-    public class ByteReader
-    {
-        private readonly int _source;
-        private int _index;
-
-        public ByteReader(int source)
-        {
-            _source = source;
-        }
-
-        public bool Read()
-        {
-            if (_index >= 8)
-            {
-                throw new InvalidOperationException("End of byte reached.");
-            }
-
-            var result = ((1 << _index) & _source) > 0;
-            _index++;
-            return result;
-        }
-
-        public byte Read(int count)
-        {
-            if (_index + count > 8)
-            {
-                throw new InvalidOperationException("End of byte will be reached.");
-            }
-
-            var result = 0;
-            for (var i = 0; i < count; i++)
-            {
-                if (((1 << _index) & _source) > 0)
-                {
-                    result |= 1 << i;
-                }
-
-                _index++;
-            }
-
-            return (byte)result;
-        }
-    }
-}

MQTTnet.Core/Serializer/ByteWriter.cs

@@ -1,36 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Serializer
-{
-    public class ByteWriter
-    {
-        private int _index;
-        private int _byte;
-
-        public byte Value => (byte)_byte;
-
-        public void Write(int @byte, int count)
-        {
-            for (var i = 0; i < count; i++)
-            {
-                var value = ((1 << i) & @byte) > 0;
-                Write(value);
-            }
-        }
-
-        public void Write(bool bit)
-        {
-            if (_index >= 8)
-            {
-                throw new InvalidOperationException("End of the byte reached.");
-            }
-
-            if (bit)
-            {
-                _byte |= 1 << _index;
-            }
-
-            _index++;
-        }
-    }
-}

MQTTnet.Core/Serializer/DefaultMqttV311PacketSerializer.cs

@@ -1,611 +0,0 @@
-using System;
-using System.Linq;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Serializer
-{
-    public class DefaultMqttV311PacketSerializer : IMqttPacketSerializer
-    {
-        public Task SerializeAsync(MqttBasePacket packet, IMqttCommunicationChannel destination)
-        {
-            if (packet == null) throw new ArgumentNullException(nameof(packet));
-            if (destination == null) throw new ArgumentNullException(nameof(destination));
-
-            var connectPacket = packet as MqttConnectPacket;
-            if (connectPacket != null)
-            {
-                return SerializeAsync(connectPacket, destination);
-            }
-
-            var connAckPacket = packet as MqttConnAckPacket;
-            if (connAckPacket != null)
-            {
-                return SerializeAsync(connAckPacket, destination);
-            }
-
-            var disconnectPacket = packet as MqttDisconnectPacket;
-            if (disconnectPacket != null)
-            {
-                return SerializeAsync(disconnectPacket, destination);
-            }
-
-            var pingReqPacket = packet as MqttPingReqPacket;
-            if (pingReqPacket != null)
-            {
-                return SerializeAsync(pingReqPacket, destination);
-            }
-
-            var pingRespPacket = packet as MqttPingRespPacket;
-            if (pingRespPacket != null)
-            {
-                return SerializeAsync(pingRespPacket, destination);
-            }
-
-            var publishPacket = packet as MqttPublishPacket;
-            if (publishPacket != null)
-            {
-                return SerializeAsync(publishPacket, destination);
-            }
-
-            var pubAckPacket = packet as MqttPubAckPacket;
-            if (pubAckPacket != null)
-            {
-                return SerializeAsync(pubAckPacket, destination);
-            }
-
-            var pubRecPacket = packet as MqttPubRecPacket;
-            if (pubRecPacket != null)
-            {
-                return SerializeAsync(pubRecPacket, destination);
-            }
-
-            var pubRelPacket = packet as MqttPubRelPacket;
-            if (pubRelPacket != null)
-            {
-                return SerializeAsync(pubRelPacket, destination);
-            }
-
-            var pubCompPacket = packet as MqttPubCompPacket;
-            if (pubCompPacket != null)
-            {
-                return SerializeAsync(pubCompPacket, destination);
-            }
-
-            var subscribePacket = packet as MqttSubscribePacket;
-            if (subscribePacket != null)
-            {
-                return SerializeAsync(subscribePacket, destination);
-            }
-
-            var subAckPacket = packet as MqttSubAckPacket;
-            if (subAckPacket != null)
-            {
-                return SerializeAsync(subAckPacket, destination);
-            }
-
-            var unsubscribePacket = packet as MqttUnsubscribePacket;
-            if (unsubscribePacket != null)
-            {
-                return SerializeAsync(unsubscribePacket, destination);
-            }
-
-            var unsubAckPacket = packet as MqttUnsubAckPacket;
-            if (unsubAckPacket != null)
-            {
-                return SerializeAsync(unsubAckPacket, destination);
-            }
-
-            throw new MqttProtocolViolationException("Packet type invalid.");
-        }
-
-        public async Task<MqttBasePacket> DeserializeAsync(IMqttCommunicationChannel source)
-        {
-            if (source == null) throw new ArgumentNullException(nameof(source));
-
-            using (var mqttPacketReader = new MqttPacketReader(source))
-            {
-                await mqttPacketReader.ReadToEndAsync();
-
-                switch (mqttPacketReader.ControlPacketType)
-                {
-                    case MqttControlPacketType.Connect:
-                        {
-                            return await DeserializeConnectAsync(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.ConnAck:
-                        {
-                            return await DeserializeConnAck(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.Disconnect:
-                        {
-                            return new MqttDisconnectPacket();
-                        }
-
-                    case MqttControlPacketType.Publish:
-                        {
-                            return await DeserializePublishAsync(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.PubAck:
-                        {
-                            return new MqttPubAckPacket
-                            {
-                                PacketIdentifier = await mqttPacketReader.ReadRemainingDataUShortAsync()
-                            };
-                        }
-
-                    case MqttControlPacketType.PubRec:
-                        {
-                            return new MqttPubRecPacket
-                            {
-                                PacketIdentifier = await mqttPacketReader.ReadRemainingDataUShortAsync()
-                            };
-                        }
-
-                    case MqttControlPacketType.PubRel:
-                        {
-                            return new MqttPubRelPacket
-                            {
-                                PacketIdentifier = await mqttPacketReader.ReadRemainingDataUShortAsync()
-                            };
-                        }
-
-                    case MqttControlPacketType.PubComp:
-                        {
-                            return new MqttPubCompPacket
-                            {
-                                PacketIdentifier = await mqttPacketReader.ReadRemainingDataUShortAsync()
-                            };
-                        }
-
-                    case MqttControlPacketType.PingReq:
-                        {
-                            return new MqttPingReqPacket();
-                        }
-
-                    case MqttControlPacketType.PingResp:
-                        {
-                            return new MqttPingRespPacket();
-                        }
-
-                    case MqttControlPacketType.Subscribe:
-                        {
-                            return await DeserializeSubscribeAsync(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.SubAck:
-                        {
-                            return await DeserializeSubAck(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.Unsubscibe:
-                        {
-                            return await DeserializeUnsubscribeAsync(mqttPacketReader);
-                        }
-
-                    case MqttControlPacketType.UnsubAck:
-                        {
-                            return new MqttUnsubAckPacket
-                            {
-                                PacketIdentifier = await mqttPacketReader.ReadRemainingDataUShortAsync()
-                            };
-                        }
-
-                    default:
-                        {
-                            throw new MqttProtocolViolationException("Packet type not supported.");
-                        }
-                }
-            }
-        }
-
-        private async Task<MqttBasePacket> DeserializeUnsubscribeAsync(MqttPacketReader reader)
-        {
-            var packet = new MqttUnsubscribePacket
-            {
-                PacketIdentifier = await reader.ReadRemainingDataUShortAsync(),
-            };
-
-            while (!reader.EndOfRemainingData)
-            {
-                packet.TopicFilters.Add(await reader.ReadRemainingDataStringWithLengthPrefixAsync());
-            }
-
-            return packet;
-        }
-
-        private async Task<MqttBasePacket> DeserializeSubscribeAsync(MqttPacketReader reader)
-        {
-            var packet = new MqttSubscribePacket
-            {
-                PacketIdentifier = await reader.ReadRemainingDataUShortAsync(),
-            };
-
-            while (!reader.EndOfRemainingData)
-            {
-                packet.TopicFilters.Add(new TopicFilter(
-                    await reader.ReadRemainingDataStringWithLengthPrefixAsync(),
-                    (MqttQualityOfServiceLevel)await reader.ReadRemainingDataByteAsync()));
-            }
-
-            return packet;
-        }
-
-        private async Task<MqttBasePacket> DeserializePublishAsync(MqttPacketReader reader)
-        {
-            var fixedHeader = new ByteReader(reader.FixedHeader);
-            var retain = fixedHeader.Read();
-            var qualityOfServiceLevel = (MqttQualityOfServiceLevel)fixedHeader.Read(2);
-            var dup = fixedHeader.Read();
-
-            var topic = await reader.ReadRemainingDataStringWithLengthPrefixAsync();
-
-            ushort packetIdentifier = 0;
-            if (qualityOfServiceLevel > MqttQualityOfServiceLevel.AtMostOnce)
-            {
-                packetIdentifier = await reader.ReadRemainingDataUShortAsync();
-            }
-
-            var packet = new MqttPublishPacket
-            {
-                Retain = retain,
-                QualityOfServiceLevel = qualityOfServiceLevel,
-                Dup = dup,
-                Topic = topic,
-                Payload = await reader.ReadRemainingDataAsync(),
-                PacketIdentifier = packetIdentifier
-            };
-
-            return packet;
-        }
-
-        private async Task<MqttBasePacket> DeserializeConnectAsync(MqttPacketReader reader)
-        {
-            var packet = new MqttConnectPacket();
-
-            await reader.ReadRemainingDataByteAsync();
-            await reader.ReadRemainingDataByteAsync();
-
-            var protocolName = await reader.ReadRemainingDataAsync(4);
-
-            if (Encoding.UTF8.GetString(protocolName, 0, protocolName.Length) != "MQTT")
-            {
-                throw new MqttProtocolViolationException("Protocol name is not 'MQTT'.");
-            }
-
-            var protocolLevel = await reader.ReadRemainingDataByteAsync();
-            var connectFlags = await reader.ReadRemainingDataByteAsync();
-
-            var connectFlagsReader = new ByteReader(connectFlags);
-            connectFlagsReader.Read(); // Reserved.
-            packet.CleanSession = connectFlagsReader.Read();
-            var willFlag = connectFlagsReader.Read();
-            var willQoS = connectFlagsReader.Read(2);
-            var willRetain = connectFlagsReader.Read();
-            var passwordFlag = connectFlagsReader.Read();
-            var usernameFlag = connectFlagsReader.Read();
-
-            packet.KeepAlivePeriod = await reader.ReadRemainingDataUShortAsync();
-            packet.ClientId = await reader.ReadRemainingDataStringWithLengthPrefixAsync();
-
-            if (willFlag)
-            {
-                packet.WillMessage = new MqttApplicationMessage(
-                    await reader.ReadRemainingDataStringWithLengthPrefixAsync(),
-                    await reader.ReadRemainingDataWithLengthPrefixAsync(),
-                    (MqttQualityOfServiceLevel)willQoS,
-                    willRetain);
-            }
-
-            if (usernameFlag)
-            {
-                packet.Username = await reader.ReadRemainingDataStringWithLengthPrefixAsync();
-            }
-
-            if (passwordFlag)
-            {
-                packet.Password = await reader.ReadRemainingDataStringWithLengthPrefixAsync();
-            }
-
-            ValidateConnectPacket(packet);
-            return packet;
-        }
-
-        private async Task<MqttBasePacket> DeserializeSubAck(MqttPacketReader reader)
-        {
-            var packet = new MqttSubAckPacket
-            {
-                PacketIdentifier = await reader.ReadRemainingDataUShortAsync()
-            };
-
-            while (!reader.EndOfRemainingData)
-            {
-                packet.SubscribeReturnCodes.Add((MqttSubscribeReturnCode)await reader.ReadRemainingDataByteAsync());
-            }
-
-            return packet;
-        }
-
-        private async Task<MqttBasePacket> DeserializeConnAck(MqttPacketReader reader)
-        {
-            var variableHeader1 = await reader.ReadRemainingDataByteAsync();
-            var variableHeader2 = await reader.ReadRemainingDataByteAsync();
-
-            var packet = new MqttConnAckPacket
-            {
-                IsSessionPresent = new ByteReader(variableHeader1).Read(),
-                ConnectReturnCode = (MqttConnectReturnCode)variableHeader2
-            };
-
-            return packet;
-        }
-
-        private void ValidateConnectPacket(MqttConnectPacket packet)
-        {
-            if (string.IsNullOrEmpty(packet.ClientId) && !packet.CleanSession)
-            {
-                throw new MqttProtocolViolationException("CleanSession must be set if ClientId is empty [MQTT-3.1.3-7].");
-            }
-        }
-
-        private void ValidatePublishPacket(MqttPublishPacket packet)
-        {
-            if (packet.QualityOfServiceLevel == 0 && packet.Dup)
-            {
-                throw new MqttProtocolViolationException("Dup flag must be false for QoS 0 packets [MQTT-3.3.1-2].");
-            }
-        }
-
-        private static readonly byte[] MqttPrefix = Encoding.UTF8.GetBytes("MQTT");
-
-        private Task SerializeAsync(MqttConnectPacket packet, IMqttCommunicationChannel destination)
-        {
-            ValidateConnectPacket(packet);
-
-            using (var output = new MqttPacketWriter())
-            {
-                // Write variable header
-                output.Write(0x00, 0x04); // 3.1.2.1 Protocol Name
-                output.Write(MqttPrefix);
-                output.Write(0x04); // 3.1.2.2 Protocol Level
-
-                var connectFlags = new ByteWriter(); // 3.1.2.3 Connect Flags
-                connectFlags.Write(false); // Reserved
-                connectFlags.Write(packet.CleanSession);
-                connectFlags.Write(packet.WillMessage != null);
-
-                if (packet.WillMessage != null)
-                {
-                    connectFlags.Write((int)packet.WillMessage.QualityOfServiceLevel, 2);
-                    connectFlags.Write(packet.WillMessage.Retain);
-                }
-                else
-                {
-                    connectFlags.Write(0, 2);
-                    connectFlags.Write(false);
-                }
-                
-                connectFlags.Write(packet.Password != null);
-                connectFlags.Write(packet.Username != null);
-
-                output.Write(connectFlags);
-                output.Write(packet.KeepAlivePeriod);
-                output.WriteWithLengthPrefix(packet.ClientId);
-
-                if (packet.WillMessage != null)
-                {
-                    output.WriteWithLengthPrefix(packet.WillMessage.Topic);
-                    output.WriteWithLengthPrefix(packet.WillMessage.Payload);
-                }
-
-                if (packet.Username != null)
-                {
-                    output.WriteWithLengthPrefix(packet.Username);
-                }
-
-                if (packet.Password != null)
-                {
-                    output.WriteWithLengthPrefix(packet.Password);
-                }
-
-                output.InjectFixedHeader(MqttControlPacketType.Connect);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttConnAckPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                var connectAcknowledgeFlags = new ByteWriter();
-                connectAcknowledgeFlags.Write(packet.IsSessionPresent);
-
-                output.Write(connectAcknowledgeFlags);
-                output.Write((byte)packet.ConnectReturnCode);
-
-                output.InjectFixedHeader(MqttControlPacketType.ConnAck);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttDisconnectPacket packet, IMqttCommunicationChannel destination)
-        {
-            return SerializeEmptyPacketAsync(MqttControlPacketType.Disconnect, destination);
-        }
-
-        private Task SerializeAsync(MqttPingReqPacket packet, IMqttCommunicationChannel destination)
-        {
-            return SerializeEmptyPacketAsync(MqttControlPacketType.PingReq, destination);
-        }
-
-        private Task SerializeAsync(MqttPingRespPacket packet, IMqttCommunicationChannel destination)
-        {
-            return SerializeEmptyPacketAsync(MqttControlPacketType.PingResp, destination);
-        }
-
-        private Task SerializeAsync(MqttPublishPacket packet, IMqttCommunicationChannel destination)
-        {
-            ValidatePublishPacket(packet);
-
-            using (var output = new MqttPacketWriter())
-            {
-                output.WriteWithLengthPrefix(packet.Topic);
-
-                if (packet.QualityOfServiceLevel > MqttQualityOfServiceLevel.AtMostOnce)
-                {
-                    output.Write(packet.PacketIdentifier);
-                }
-                else
-                {
-                    if (packet.PacketIdentifier > 0)
-                    {
-                        throw new MqttProtocolViolationException("Packet identifier must be empty if QoS == 0 [MQTT-2.3.1-5].");
-                    }
-                }
-
-                if (packet.Payload?.Length > 0)
-                {
-                    output.Write(packet.Payload);
-                }
-
-                var fixedHeader = new ByteWriter();
-                fixedHeader.Write(packet.Retain);
-                fixedHeader.Write((byte)packet.QualityOfServiceLevel, 2);
-                fixedHeader.Write(packet.Dup);
-
-                output.InjectFixedHeader(MqttControlPacketType.Publish, fixedHeader.Value);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttPubAckPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                output.InjectFixedHeader(MqttControlPacketType.PubAck);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttPubRecPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                output.InjectFixedHeader(MqttControlPacketType.PubRec);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private async Task SerializeAsync(MqttPubRelPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                output.InjectFixedHeader(MqttControlPacketType.PubRel, 0x02);
-                await output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttPubCompPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                output.InjectFixedHeader(MqttControlPacketType.PubComp);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttSubscribePacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                if (packet.TopicFilters?.Count > 0)
-                {
-                    foreach (var topicFilter in packet.TopicFilters)
-                    {
-                        output.WriteWithLengthPrefix(topicFilter.Topic);
-                        output.Write((byte)topicFilter.QualityOfServiceLevel);
-                    }
-                }
-
-                output.InjectFixedHeader(MqttControlPacketType.Subscribe, 0x02);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttSubAckPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                if (packet.SubscribeReturnCodes?.Any() == true)
-                {
-                    foreach (var packetSubscribeReturnCode in packet.SubscribeReturnCodes)
-                    {
-                        output.Write((byte)packetSubscribeReturnCode);
-                    }
-                }
-
-                output.InjectFixedHeader(MqttControlPacketType.SubAck);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttUnsubscribePacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                if (packet.TopicFilters?.Any() == true)
-                {
-                    foreach (var topicFilter in packet.TopicFilters)
-                    {
-                        output.WriteWithLengthPrefix(topicFilter);
-                    }
-                }
-
-                output.InjectFixedHeader(MqttControlPacketType.Unsubscibe, 0x02);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeAsync(MqttUnsubAckPacket packet, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.Write(packet.PacketIdentifier);
-
-                output.InjectFixedHeader(MqttControlPacketType.UnsubAck);
-                return output.WriteToAsync(destination);
-            }
-        }
-
-        private Task SerializeEmptyPacketAsync(MqttControlPacketType type, IMqttCommunicationChannel destination)
-        {
-            using (var output = new MqttPacketWriter())
-            {
-                output.InjectFixedHeader(type);
-                return output.WriteToAsync(destination);
-            }
-        }
-    }
-}

MQTTnet.Core/Serializer/IMqttPacketSerializer.cs

@@ -1,13 +0,0 @@
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Serializer
-{
-    public interface IMqttPacketSerializer
-    {
-        Task SerializeAsync(MqttBasePacket mqttPacket, IMqttCommunicationChannel destination);
-
-        Task<MqttBasePacket> DeserializeAsync(IMqttCommunicationChannel source);
-    }
-}

MQTTnet.Core/Serializer/MqttPacketReader.cs

@@ -1,128 +0,0 @@
-using System;
-using System.IO;
-using System.Text;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Serializer
-{
-    public sealed class MqttPacketReader : IDisposable
-    {
-        private readonly MemoryStream _remainingData = new MemoryStream();
-        private readonly IMqttCommunicationChannel _source;
-
-        public MqttPacketReader(IMqttCommunicationChannel source)
-        {
-            _source = source ?? throw new ArgumentNullException(nameof(source));
-        }
-
-        public MqttControlPacketType ControlPacketType { get; private set; }
-
-        public byte FixedHeader { get; private set; }
-
-        public int RemainingLength { get; private set; }
-
-        public bool EndOfRemainingData => _remainingData.Position == _remainingData.Length;
-
-        public async Task ReadToEndAsync()
-        {
-            await ReadFixedHeaderAsync();
-            await ReadRemainingLengthAsync();
-
-            if (RemainingLength == 0)
-            {
-                return;
-            }
-
-            var buffer = new byte[RemainingLength];
-            await _source.ReadAsync(buffer);
-
-            _remainingData.Write(buffer, 0, buffer.Length);
-            _remainingData.Position = 0;
-        }
-
-        private async Task ReadFixedHeaderAsync()
-        {
-            FixedHeader = await ReadStreamByteAsync();
-
-            var byteReader = new ByteReader(FixedHeader);
-            byteReader.Read(4);
-            ControlPacketType = (MqttControlPacketType)byteReader.Read(4);
-        }
-
-        private async Task<byte> ReadStreamByteAsync()
-        {
-            var buffer = new byte[1];
-            await _source.ReadAsync(buffer);
-            return buffer[0];
-        }
-
-        private async Task ReadRemainingLengthAsync()
-        {
-            // Alorithm taken from http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html.
-            var multiplier = 1;
-            var value = 0;
-            byte encodedByte;
-            do
-            {
-                encodedByte = await ReadStreamByteAsync();
-                value += (encodedByte & 127) * multiplier;
-                multiplier *= 128;
-                if (multiplier > 128 * 128 * 128)
-                {
-                    throw new MqttProtocolViolationException("Remaining length is ivalid.");
-                }
-            } while ((encodedByte & 128) != 0);
-
-            RemainingLength = value;
-        }
-
-        public async Task<byte> ReadRemainingDataByteAsync()
-        {
-            return (await ReadRemainingDataAsync(1))[0];
-        }
-
-        public async Task<ushort> ReadRemainingDataUShortAsync()
-        {
-            var buffer = await ReadRemainingDataAsync(2);
-
-            var temp = buffer[0];
-            buffer[0] = buffer[1];
-            buffer[1] = temp;
-
-            return BitConverter.ToUInt16(buffer, 0);
-        }
-
-        public async Task<string> ReadRemainingDataStringWithLengthPrefixAsync()
-        {
-            var buffer = await ReadRemainingDataWithLengthPrefixAsync();
-            return Encoding.UTF8.GetString(buffer, 0, buffer.Length);
-        }
-
-        public async Task<byte[]> ReadRemainingDataWithLengthPrefixAsync()
-        {
-            var length = await ReadRemainingDataUShortAsync();
-            return await ReadRemainingDataAsync(length);
-        }
-
-        public Task<byte[]> ReadRemainingDataAsync()
-        {
-            return ReadRemainingDataAsync(RemainingLength - (int)_remainingData.Position);
-        }
-
-        public async Task<byte[]> ReadRemainingDataAsync(int length)
-        {
-            var buffer = new byte[length];
-            await _remainingData.ReadAsync(buffer, 0, buffer.Length);
-
-            return buffer;
-        }
-
-        public void Dispose()
-        {
-            _remainingData?.Dispose();
-        }
-    }
-}

MQTTnet.Core/Serializer/MqttPacketWriter.cs

@@ -1,105 +0,0 @@
-using System;
-using System.IO;
-using System.Text;
-using System.Threading.Tasks;
-using MQTTnet.Core.Channel;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Serializer
-{
-    public sealed class MqttPacketWriter : IDisposable
-    {
-        private readonly MemoryStream _buffer = new MemoryStream(512);
-
-        public void InjectFixedHeader(byte fixedHeader)
-        {
-            if (_buffer.Length == 0)
-            {
-                Write(fixedHeader);
-                Write(0);
-                return;
-            }
-
-            var backupBuffer = _buffer.ToArray();
-            var remainingLength = (int)_buffer.Length;
-
-            _buffer.SetLength(0);
-
-            _buffer.WriteByte(fixedHeader);
-
-            // Alorithm taken from http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html.
-            var x = remainingLength;
-            do
-            {
-                var encodedByte = x % 128;
-                x = x / 128;
-                if (x > 0)
-                {
-                    encodedByte = encodedByte | 128;
-                }
-
-                _buffer.WriteByte((byte)encodedByte);
-            } while (x > 0);
-
-            _buffer.Write(backupBuffer, 0, backupBuffer.Length);
-        }
-
-        public void InjectFixedHeader(MqttControlPacketType packetType, byte flags = 0)
-        {
-            var fixedHeader = (byte)((byte)packetType << 4);
-            fixedHeader |= flags;
-            InjectFixedHeader(fixedHeader);
-        }
-
-        public void Write(byte value)
-        {
-            _buffer.WriteByte(value);
-        }
-
-        public void Write(ushort value)
-        {
-            var buffer = BitConverter.GetBytes(value);
-            _buffer.WriteByte(buffer[1]);
-            _buffer.WriteByte(buffer[0]);
-        }
-
-        public void Write(ByteWriter value)
-        {
-            if (value == null) throw new ArgumentNullException(nameof(value));
-
-            _buffer.WriteByte(value.Value);
-        }
-
-        public void Write(params byte[] value)
-        {
-            if (value == null) throw new ArgumentNullException(nameof(value));
-
-            _buffer.Write(value, 0, value.Length);
-        }
-
-        public void WriteWithLengthPrefix(string value)
-        {
-            WriteWithLengthPrefix(Encoding.UTF8.GetBytes(value ?? string.Empty));
-        }
-
-        public void WriteWithLengthPrefix(byte[] value)
-        {
-            var length = (ushort)value.Length;
-
-            Write(length);
-            Write(value);
-        }
-
-        public Task WriteToAsync(IMqttCommunicationChannel destination)
-        {
-            if (destination == null) throw new ArgumentNullException(nameof(destination));
-
-            return destination.WriteAsync(_buffer.ToArray());
-        }
-
-        public void Dispose()
-        {
-            _buffer?.Dispose();
-        }
-    }
-}

MQTTnet.Core/Server/MqttClientMessageQueue.cs

@@ -1,135 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Internal;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttClientMessageQueue
-    {
-        private readonly List<MqttClientPublishPacketContext> _pendingPublishPackets = new List<MqttClientPublishPacketContext>();
-        private readonly AsyncGate _gate = new AsyncGate();
-
-        private readonly MqttServerOptions _options;
-        private CancellationTokenSource _cancellationTokenSource;
-        private IMqttCommunicationAdapter _adapter;
-
-        public MqttClientMessageQueue(MqttServerOptions options)
-        {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
-        }
-
-        public void Start(IMqttCommunicationAdapter adapter)
-        {
-            if (_cancellationTokenSource != null)
-            {
-                throw new InvalidOperationException($"{nameof(MqttClientMessageQueue)} already started.");
-            }
-
-            _adapter = adapter ?? throw new ArgumentNullException(nameof(adapter));
-            _cancellationTokenSource = new CancellationTokenSource();
-
-            Task.Run(() => SendPendingPublishPacketsAsync(_cancellationTokenSource.Token));
-        }
-
-        public void Stop()
-        {
-            _adapter = null;
-            _cancellationTokenSource?.Cancel();
-            _cancellationTokenSource = null;
-        }
-
-        public void Enqueue(MqttClientSession senderClientSession, MqttPublishPacket publishPacket)
-        {
-            if (senderClientSession == null) throw new ArgumentNullException(nameof(senderClientSession));
-            if (publishPacket == null) throw new ArgumentNullException(nameof(publishPacket));
-
-            lock (_pendingPublishPackets)
-            {
-                _pendingPublishPackets.Add(new MqttClientPublishPacketContext(senderClientSession, publishPacket));
-                _gate.Set();
-            }
-        }
-
-        private async Task SendPendingPublishPacketsAsync(CancellationToken cancellationToken)
-        {
-            while (!cancellationToken.IsCancellationRequested)
-            {
-                try
-                {
-                    await _gate.WaitOneAsync();
-                    if (cancellationToken.IsCancellationRequested)
-                    {
-                        return;
-                    }
-
-                    if (_adapter == null)
-                    {
-                        continue;
-                    }
-
-                    List<MqttClientPublishPacketContext> pendingPublishPackets;
-                    lock (_pendingPublishPackets)
-                    {
-                        pendingPublishPackets = _pendingPublishPackets.ToList();
-                    }
-
-                    foreach (var publishPacket in pendingPublishPackets)
-                    {
-                        await TrySendPendingPublishPacketAsync(publishPacket);
-                    }
-                }
-                catch (Exception e)
-                {
-                    MqttTrace.Error(nameof(MqttClientMessageQueue), e, "Error while sending pending publish packets.");
-                }
-                finally
-                {
-                    Cleanup();
-                }               
-            }
-        }
-
-        private async Task TrySendPendingPublishPacketAsync(MqttClientPublishPacketContext publishPacketContext)
-        {
-            try
-            {
-                if (_adapter == null)
-                {
-                    return;
-                }
-
-                publishPacketContext.PublishPacket.Dup = publishPacketContext.SendTries > 0;
-                await _adapter.SendPacketAsync(publishPacketContext.PublishPacket, _options.DefaultCommunicationTimeout);
-
-                publishPacketContext.IsSent = true;
-            }
-            catch (MqttCommunicationException exception)
-            {
-                MqttTrace.Warning(nameof(MqttClientMessageQueue), exception, "Sending publish packet failed.");
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Error(nameof(MqttClientMessageQueue), exception, "Sending publish packet failed.");
-            }
-            finally
-            {
-                publishPacketContext.SendTries++;
-            }
-        }
-
-        private void Cleanup()
-        {
-            lock (_pendingPublishPackets)
-            {
-                _pendingPublishPackets.RemoveAll(p => p.IsSent);
-            }
-        }
-    }
-}

MQTTnet.Core/Server/MqttClientPublishPacketContext.cs

@@ -1,22 +0,0 @@
-using System;
-using MQTTnet.Core.Packets;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttClientPublishPacketContext
-    {
-        public MqttClientPublishPacketContext(MqttClientSession senderClientSession, MqttPublishPacket publishPacket)
-        {
-            SenderClientSession = senderClientSession ?? throw new ArgumentNullException(nameof(senderClientSession));
-            PublishPacket = publishPacket ?? throw new ArgumentNullException(nameof(publishPacket));
-        }
-
-        public MqttClientSession SenderClientSession { get; }
-
-        public MqttPublishPacket PublishPacket { get; }
-
-        public int SendTries { get; set; }
-
-        public bool IsSent { get; set; }
-    }
-}

MQTTnet.Core/Server/MqttClientSession.cs

@@ -1,183 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Internal;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Server
-{
-    public sealed class MqttClientSession : IDisposable
-    {
-        private readonly ConcurrentDictionary<ushort, MqttPublishPacket> _pendingIncomingPublications = new ConcurrentDictionary<ushort, MqttPublishPacket>();
-
-        private readonly MqttClientSubscriptionsManager _subscriptionsManager = new MqttClientSubscriptionsManager();
-        private readonly MqttClientMessageQueue _messageQueue;
-        private readonly Action<MqttClientSession, MqttPublishPacket> _publishPacketReceivedCallback;
-        private readonly MqttServerOptions _options;
-
-        private CancellationTokenSource _cancellationTokenSource;
-        private IMqttCommunicationAdapter _adapter;
-        private string _identifier;
-        private MqttApplicationMessage _willApplicationMessage;
-
-        public MqttClientSession(MqttServerOptions options, Action<MqttClientSession, MqttPublishPacket> publishPacketReceivedCallback)
-        {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
-            _publishPacketReceivedCallback = publishPacketReceivedCallback ?? throw new ArgumentNullException(nameof(publishPacketReceivedCallback));
-
-            _messageQueue = new MqttClientMessageQueue(options);
-        }
-
-        public bool IsConnected => _adapter != null;
-
-        public async Task RunAsync(string identifier, MqttApplicationMessage willApplicationMessage, IMqttCommunicationAdapter adapter)
-        {
-            if (adapter == null) throw new ArgumentNullException(nameof(adapter));
-
-            _willApplicationMessage = willApplicationMessage;
-
-            try
-            {
-                _identifier = identifier;
-                _adapter = adapter;
-                _cancellationTokenSource = new CancellationTokenSource();
-
-                _messageQueue.Start(adapter);
-                while (!_cancellationTokenSource.IsCancellationRequested)
-                {
-                    var packet = await adapter.ReceivePacketAsync(TimeSpan.Zero);
-                    await HandleIncomingPacketAsync(packet);
-                }
-            }
-            catch (MqttCommunicationException)
-            {
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Error(nameof(MqttClientSession), exception, $"Client '{_identifier}': Unhandled exception while processing client packets.");
-            }
-            finally
-            {
-                if (willApplicationMessage != null)
-                {
-                    _publishPacketReceivedCallback(this, _willApplicationMessage.ToPublishPacket());
-                }
-
-                _messageQueue.Stop();
-                _cancellationTokenSource.Cancel();
-                _adapter = null;
-
-                MqttTrace.Information(nameof(MqttClientSession), $"Client '{_identifier}': Disconnected.");
-            }
-        }
-
-        public void EnqueuePublishPacket(MqttClientSession senderClientSession, MqttPublishPacket publishPacket)
-        {
-            if (senderClientSession == null) throw new ArgumentNullException(nameof(senderClientSession));
-            if (publishPacket == null) throw new ArgumentNullException(nameof(publishPacket));
-
-            if (!_subscriptionsManager.IsTopicSubscribed(publishPacket))
-            {
-                return;
-            }
-
-            _messageQueue.Enqueue(senderClientSession, publishPacket);
-            MqttTrace.Verbose(nameof(MqttClientSession), $"Client '{_identifier}: Enqueued pending publish packet.");
-        }
-
-        public void Dispose()
-        {
-            _cancellationTokenSource?.Cancel();
-            _cancellationTokenSource?.Dispose();
-        }
-
-        private Task HandleIncomingPacketAsync(MqttBasePacket packet)
-        {
-            var subscribePacket = packet as MqttSubscribePacket;
-            if (subscribePacket != null)
-            {
-                return _adapter.SendPacketAsync(_subscriptionsManager.Subscribe(subscribePacket), _options.DefaultCommunicationTimeout);
-            }
-
-            var unsubscribePacket = packet as MqttUnsubscribePacket;
-            if (unsubscribePacket != null)
-            {
-                return _adapter.SendPacketAsync(_subscriptionsManager.Unsubscribe(unsubscribePacket), _options.DefaultCommunicationTimeout);
-            }
-
-            var publishPacket = packet as MqttPublishPacket;
-            if (publishPacket != null)
-            {
-                return HandleIncomingPublishPacketAsync(publishPacket);
-            }
-
-            var pubRelPacket = packet as MqttPubRelPacket;
-            if (pubRelPacket != null)
-            {
-                return HandleIncomingPubRelPacketAsync(pubRelPacket);
-            }
-
-            var pubAckPacket = packet as MqttPubAckPacket;
-            if (pubAckPacket != null)
-            {
-                return HandleIncomingPubAckPacketAsync(pubAckPacket);
-            }
-
-            if (packet is MqttPingReqPacket)
-            {
-                return _adapter.SendPacketAsync(new MqttPingRespPacket(), _options.DefaultCommunicationTimeout);
-            }
-
-            if (packet is MqttDisconnectPacket || packet is MqttConnectPacket)
-            {
-                _cancellationTokenSource.Cancel();
-                return Task.FromResult((object)null);
-            }
-
-            MqttTrace.Warning(nameof(MqttClientSession), $"Client '{_identifier}': Received not supported packet ({packet}). Closing connection.");
-            _cancellationTokenSource.Cancel();
-
-            return Task.FromResult((object)null);
-        }
-
-        private async Task HandleIncomingPubAckPacketAsync(MqttPubAckPacket pubAckPacket)
-        {
-            await Task.FromResult((object)null);
-        }
-
-        private async Task HandleIncomingPublishPacketAsync(MqttPublishPacket publishPacket)
-        {
-            if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtMostOnce)
-            {
-                _publishPacketReceivedCallback(this, publishPacket);
-            }
-            else if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.AtLeastOnce)
-            {
-                await _adapter.SendPacketAsync(new MqttPubAckPacket { PacketIdentifier = publishPacket.PacketIdentifier }, _options.DefaultCommunicationTimeout);
-                _publishPacketReceivedCallback(this, publishPacket);
-            }
-            else if (publishPacket.QualityOfServiceLevel == MqttQualityOfServiceLevel.ExactlyOnce)
-            {
-                _pendingIncomingPublications[publishPacket.PacketIdentifier] = publishPacket;
-                await _adapter.SendPacketAsync(new MqttPubRecPacket { PacketIdentifier = publishPacket.PacketIdentifier }, _options.DefaultCommunicationTimeout);
-            }
-        }
-
-        private async Task HandleIncomingPubRelPacketAsync(MqttPubRelPacket pubRelPacket)
-        {
-            MqttPublishPacket publishPacket;
-            if (!_pendingIncomingPublications.TryRemove(pubRelPacket.PacketIdentifier, out publishPacket))
-            {
-                return;
-            }
-
-            await _adapter.SendPacketAsync(new MqttPubCompPacket { PacketIdentifier = publishPacket.PacketIdentifier }, _options.DefaultCommunicationTimeout);
-            _publishPacketReceivedCallback(this, publishPacket);
-        }
-    }
-}

MQTTnet.Core/Server/MqttClientSessionsManager.cs

@@ -1,135 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Diagnostics;
-using MQTTnet.Core.Exceptions;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttClientSessionsManager
-    {
-        private readonly object _syncRoot = new object();
-        private readonly Dictionary<string, MqttClientSession> _clientSessions = new Dictionary<string, MqttClientSession>();
-        private readonly MqttServerOptions _options;
-
-        public MqttClientSessionsManager(MqttServerOptions options)
-        {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
-        }
-
-        public async Task RunClientSessionAsync(MqttClientConnectedEventArgs eventArgs)
-        {
-            try
-            {
-                var connectPacket = await eventArgs.ClientAdapter.ReceivePacketAsync(_options.DefaultCommunicationTimeout) as MqttConnectPacket;
-                if (connectPacket == null)
-                {
-                    throw new MqttProtocolViolationException("The first packet from a client must be a 'CONNECT' packet [MQTT-3.1.0-1].");
-                }
-
-                var connectReturnCode = ValidateConnection(connectPacket);
-                if (connectReturnCode != MqttConnectReturnCode.ConnectionAccepted)
-                {
-                    await eventArgs.ClientAdapter.SendPacketAsync(new MqttConnAckPacket
-                    {
-                        ConnectReturnCode = connectReturnCode
-                    }, _options.DefaultCommunicationTimeout);
-
-                    return;
-                }
-
-                var clientSession = GetOrCreateClientSession(connectPacket);
-
-                await eventArgs.ClientAdapter.SendPacketAsync(new MqttConnAckPacket
-                {
-                    ConnectReturnCode = connectReturnCode,
-                    IsSessionPresent = clientSession.IsExistingSession
-                }, _options.DefaultCommunicationTimeout);
-
-                await clientSession.Session.RunAsync(eventArgs.Identifier, connectPacket.WillMessage, eventArgs.ClientAdapter);
-            }
-            catch (Exception exception)
-            {
-                MqttTrace.Error(nameof(MqttServer), exception, exception.Message);
-            }
-            finally
-            {
-                await eventArgs.ClientAdapter.DisconnectAsync();
-            }
-        }
-
-        public void Clear()
-        {
-            lock (_syncRoot)
-            {
-                _clientSessions.Clear();
-            }
-        }
-
-        public IList<string> GetConnectedClients()
-        {
-            lock (_syncRoot)
-            {
-                return _clientSessions.Where(s => s.Value.IsConnected).Select(s => s.Key).ToList();
-            }
-        }
-
-        private MqttConnectReturnCode ValidateConnection(MqttConnectPacket connectPacket)
-        {
-            if (_options.ConnectionValidator != null)
-            {
-                return _options.ConnectionValidator(connectPacket);
-            }
-
-            return MqttConnectReturnCode.ConnectionAccepted;
-        }
-
-        private GetOrCreateClientSessionResult GetOrCreateClientSession(MqttConnectPacket connectPacket)
-        {
-            lock (_syncRoot)
-            {
-                MqttClientSession clientSession;
-                var isSessionPresent = _clientSessions.TryGetValue(connectPacket.ClientId, out clientSession);
-                if (isSessionPresent)
-                {
-                    if (connectPacket.CleanSession)
-                    {
-                        _clientSessions.Remove(connectPacket.ClientId);
-                        clientSession.Dispose();
-                        clientSession = null;
-                        MqttTrace.Verbose(nameof(MqttClientSessionsManager), $"Disposed existing session of client '{connectPacket.ClientId}'.");
-                    }
-                    else
-                    {
-                        MqttTrace.Verbose(nameof(MqttClientSessionsManager), $"Reusing existing session of client '{connectPacket.ClientId}'.");
-                    }
-                }
-
-                var isExistingSession = true;
-                if (clientSession == null)
-                {
-                    isExistingSession = false;
-
-                    clientSession = new MqttClientSession(_options, DispatchPublishPacket);
-                    _clientSessions[connectPacket.ClientId] = clientSession;
-
-                    MqttTrace.Verbose(nameof(MqttClientSessionsManager), $"Created a new session for client '{connectPacket.ClientId}'.");
-                }
-
-                return new GetOrCreateClientSessionResult { IsExistingSession = isExistingSession, Session = clientSession };
-            }
-        }
-
-        private void DispatchPublishPacket(MqttClientSession senderClientSession, MqttPublishPacket publishPacket)
-        {
-            foreach (var clientSession in _clientSessions.Values.ToList())
-            {
-                clientSession.EnqueuePublishPacket(senderClientSession, publishPacket);
-            }
-        }
-    }
-}

MQTTnet.Core/Server/MqttClientSubscriptionsManager.cs

@@ -1,61 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttClientSubscriptionsManager
-    {
-        private readonly ConcurrentDictionary<string, MqttQualityOfServiceLevel> _subscribedTopics = new ConcurrentDictionary<string, MqttQualityOfServiceLevel>();
-
-        public MqttSubAckPacket Subscribe(MqttSubscribePacket subscribePacket)
-        {
-            if (subscribePacket == null) throw new ArgumentNullException(nameof(subscribePacket));
-
-            var responsePacket = subscribePacket.CreateResponse<MqttSubAckPacket>();
-            foreach (var topicFilter in subscribePacket.TopicFilters)
-            {
-                _subscribedTopics[topicFilter.Topic] = topicFilter.QualityOfServiceLevel;
-                responsePacket.SubscribeReturnCodes.Add(MqttSubscribeReturnCode.SuccessMaximumQoS1); // TODO: Add support for QoS 2.
-            }
-
-            return responsePacket;
-        }
-
-        public MqttUnsubAckPacket Unsubscribe(MqttUnsubscribePacket unsubscribePacket)
-        {
-            if (unsubscribePacket == null) throw new ArgumentNullException(nameof(unsubscribePacket));
-
-            foreach (var topicFilter in unsubscribePacket.TopicFilters)
-            {
-                MqttQualityOfServiceLevel _;
-                _subscribedTopics.TryRemove(topicFilter, out _);
-            }
-
-            return unsubscribePacket.CreateResponse<MqttUnsubAckPacket>();
-        }
-
-        public bool IsTopicSubscribed(MqttPublishPacket publishPacket)
-        {
-            if (publishPacket == null) throw new ArgumentNullException(nameof(publishPacket));
-
-            foreach (var subscribedTopic in _subscribedTopics)
-            {
-                if (!MqttTopicFilterComparer.IsMatch(publishPacket.Topic, subscribedTopic.Key))
-                {
-                    continue;
-                }
-
-                if (subscribedTopic.Value < publishPacket.QualityOfServiceLevel)
-                {
-                    continue;
-                }
-
-                return true;
-            }
-
-            return false;
-        }
-    }
-}

MQTTnet.Core/Server/MqttServer.cs

@@ -1,75 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-using MQTTnet.Core.Adapter;
-using MQTTnet.Core.Diagnostics;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttServer
-    {
-        private readonly MqttClientSessionsManager _clientSessionsManager;
-        private readonly IMqttServerAdapter _adapter;
-        private readonly MqttServerOptions _options;
-
-        private CancellationTokenSource _cancellationTokenSource;
-
-        public MqttServer(MqttServerOptions options, IMqttServerAdapter adapter)
-        {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
-            _adapter = adapter ?? throw new ArgumentNullException(nameof(adapter));
-            
-            _clientSessionsManager = new MqttClientSessionsManager(options);
-        }
-
-        public IList<string> GetConnectedClients()
-        {
-            return _clientSessionsManager.GetConnectedClients();
-        }
-
-        public event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
-
-        public void InjectClient(string identifier, IMqttCommunicationAdapter adapter)
-        {
-            if (adapter == null) throw new ArgumentNullException(nameof(adapter));
-
-            if (_cancellationTokenSource == null) throw new InvalidOperationException("The MQTT server is not started.");
-
-            OnClientConnected(this, new MqttClientConnectedEventArgs(identifier, adapter));
-        }
-
-        public void Start()
-        {
-            if (_cancellationTokenSource != null) throw new InvalidOperationException("The MQTT server is already started.");
-
-            _cancellationTokenSource = new CancellationTokenSource();
-
-            _adapter.ClientConnected += OnClientConnected;
-            _adapter.Start(_options);
-
-            MqttTrace.Information(nameof(MqttServer), "Started.");
-        }
-
-        public void Stop()
-        {
-            _cancellationTokenSource?.Cancel();
-            _cancellationTokenSource = null;
-
-            _adapter.ClientConnected -= OnClientConnected;
-            _adapter.Stop();
-
-            _clientSessionsManager.Clear();
-
-            MqttTrace.Information(nameof(MqttServer), "Stopped.");
-        }
-
-        private void OnClientConnected(object sender, MqttClientConnectedEventArgs eventArgs)
-        {
-            MqttTrace.Information(nameof(MqttServer), $"Client '{eventArgs.Identifier}': Connected.");
-            ClientConnected?.Invoke(this, eventArgs);
-
-            Task.Run(() => _clientSessionsManager.RunClientSessionAsync(eventArgs), _cancellationTokenSource.Token);
-        }
-    }
-}

MQTTnet.Core/Server/MqttServerOptions.cs

@@ -1,17 +0,0 @@
-using System;
-using MQTTnet.Core.Packets;
-using MQTTnet.Core.Protocol;
-
-namespace MQTTnet.Core.Server
-{
-    public class MqttServerOptions
-    {
-        public int Port { get; set; } = 1883;
-
-        public int ConnectionBacklog { get; set; } = 10;
-
-        public TimeSpan DefaultCommunicationTimeout { get; set; } = TimeSpan.FromSeconds(10);
-
-        public Func<MqttConnectPacket, MqttConnectReturnCode> ConnectionValidator { get; set; }
-    }
-}

MQTTnet.Core/Server/MqttTopicFilterComparer.cs

@@ -1,53 +0,0 @@
-using System;
-
-namespace MQTTnet.Core.Server
-{
-    public static class MqttTopicFilterComparer
-    {
-        private const char TopicLevelSeparator = '/';
-
-        public static bool IsMatch(string topic, string filter)
-        {
-            if (topic == null) throw new ArgumentNullException(nameof(topic));
-            if (filter == null) throw new ArgumentNullException(nameof(filter));
-
-            if (string.Equals(topic, filter, StringComparison.Ordinal))
-            {
-                return true;
-            }
-
-            var fragmentsTopic = topic.Split(new[] { TopicLevelSeparator }, StringSplitOptions.None);
-            var fragmentsFilter = filter.Split(new[] { TopicLevelSeparator }, StringSplitOptions.None);
-
-            for (var i = 0; i < fragmentsFilter.Length; i++)
-            {
-                if (fragmentsFilter[i] == "+")
-                {
-                    continue;
-                }
-
-                if (fragmentsFilter[i] == "#" && i == fragmentsFilter.Length - 1)
-                {
-                    return true;
-                }
-
-                if (i >= fragmentsTopic.Length)
-                {
-                    return false;
-                }
-
-                if (!string.Equals(fragmentsFilter[i], fragmentsTopic[i]))
-                {
-                    return false;
-                }
-            }
-
-            if (fragmentsTopic.Length > fragmentsFilter.Length)
-            {
-                return false;
-            }
-
-            return true;
-        }
-    }
-}

MQTTnet.nuspec

@@ -1,55 +0,0 @@
-<?xml version="1.0"?>
-<package >
-  <metadata>
-    <id>MQTTnet</id>
-    <version>2.1.2.0</version>
-    <authors>Christian Kratky</authors>
-    <owners>Christian Kratky</owners>
-    <licenseUrl>https://github.com/chkr1011/MQTTnet/blob/master/LICENSE</licenseUrl>
-    <projectUrl>https://github.com/chkr1011/MQTTnet</projectUrl>
-    <iconUrl>https://raw.githubusercontent.com/chkr1011/MQTTnet/master/Images/Logo_128x128.png</iconUrl>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>MQTTnet is a .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker).</description>
-    <releaseNotes>* [Server] Added support for complex client IDs.
-      * [Server] Fixed an issue with not correctly removed old client sessions.
-      * [Server] Several minor performance improvements.
-      * [Server] An existing client session is no longer closed if a new client connection is invalid.
-      * [Client] Added support for sending "CleanSession" flag.</releaseNotes>
-    <copyright>Copyright Christian Kratky 2016-2017</copyright>
-    <tags>MQTT MQTTClient MQTTServer MQTTBroker Broker</tags>
-  </metadata>
-
-  <files>
-    <!-- Universal Windows -->
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\Release\MQTTnet.Core.dll" target="lib\uap10.0"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\Release\MQTTnet.dll" target="lib\uap10.0"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\Release\MQTTnet.pri" target="lib\uap10.0"/>
-
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\ARM\Release\MQTTnet.Core.dll" target="lib\uap10.0-arm"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\ARM\Release\MQTTnet.dll" target="lib\uap10.0-arm"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\ARM\Release\MQTTnet.pri" target="lib\uap10.0-arm"/>
-
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x64\Release\MQTTnet.Core.dll" target="lib\uap10.0-x64"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x64\Release\MQTTnet.dll" target="lib\uap10.0-x64"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x64\Release\MQTTnet.pri" target="lib\uap10.0-x64"/>
-
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x86\Release\MQTTnet.Core.dll" target="lib\uap10.0-x86"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x86\Release\MQTTnet.dll" target="lib\uap10.0-x86"/>
-    <file src=".\Frameworks\MQTTnet.UniversalWindows\bin\x86\Release\MQTTnet.pri" target="lib\uap10.0-x86"/>
-
-    <!-- .NET Framework -->
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\Release\MQTTnet.Core.dll" target="lib\net45"/>
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\Release\MQTTnet.dll" target="lib\net45"/>
-    
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\x86\Release\MQTTnet.Core.dll" target="lib\net45-x86"/>
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\x86\Release\MQTTnet.dll" target="lib\net45-x86"/>
-
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\x86\Release\MQTTnet.Core.dll" target="lib\net45-x64"/>
-    <file src=".\Frameworks\MQTTnet.NetFramework\bin\x86\Release\MQTTnet.dll" target="lib\net45-x64"/>
-
-    <!-- .NET Core App -->
-    <file src=".\Frameworks\MQTTnet.NetCoreApp\bin\Release\netcoreapp1.1\MQTTnet.Core.dll" target="lib\netcoreapp1.1"/>
-    <file src=".\Frameworks\MQTTnet.NetCoreApp\bin\Release\netcoreapp1.1\MQTTnet.dll" target="lib\netcoreapp1.1"/>
-    
-  </files>
-</package>

MQTTnet.sln

@@ -1,37 +1,54 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26228.9
+VisualStudioVersion = 15.0.27004.2010
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.TestMqttClient", "Tests\MQTTnet.TestMqttClient\MQTTnet.TestMqttClient.csproj", "{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.Core.Tests", "Tests\MQTTnet.Core.Tests\MQTTnet.Core.Tests.csproj", "{A7FF0C91-25DE-4BA6-B39E-F54E8DADF1CC}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.NetFramework", "Frameworks\MQTTnet.NetFramework\MQTTnet.NetFramework.csproj", "{A480EF90-0EAA-4D9A-B271-47A9C47F6F7D}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.UniversalWindows", "Frameworks\MQTTnet.UniversalWindows\MQTTnet.UniversalWindows.csproj", "{BD60C727-D8E8-40C3-B8E3-C95A864AE611}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.Core.Tests", "Tests\MQTTnet.Core.Tests\MQTTnet.Core.Tests.csproj", "{A7FF0C91-25DE-4BA6-B39E-F54E8DADF1CC}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{9248C2E1-B9D6-40BF-81EC-86004D7765B4}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Frameworks", "Frameworks", "{32A630A7-2598-41D7-B625-204CD906F5FB}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Source", "Source", "{32A630A7-2598-41D7-B625-204CD906F5FB}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.TestMqttServer", "Tests\MQTTnet.TestMqttServer\MQTTnet.TestMqttServer.csproj", "{6F8C0C0C-59EC-4921-9267-370AE113C34F}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.TestApp.UniversalWindows", "Tests\MQTTnet.TestApp.UniversalWindows\MQTTnet.TestApp.UniversalWindows.csproj", "{FF1F72D6-9524-4422-9497-3CC0002216ED}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MQTTnet.Core", "MQTTnet.Core\MQTTnet.Core.csproj", "{2ECB99E4-72D0-4C23-99BA-93D511D3967D}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet", "Source\MQTTnet\MQTTnet.csproj", "{3587E506-55A2-4EB3-99C7-DC01E42D25D2}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{002203AF-2565-4C0D-95ED-027FDEFE0C35}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Build", "Build", "{67C28AC1-BC3A-420A-BE9C-FA2401431CF9}"
 	ProjectSection(SolutionItems) = preProject
-		MQTTnet.nuspec = MQTTnet.nuspec
+		Build\build.ps1 = Build\build.ps1
+		Build\MQTTnet.AspNetCore.nuspec = Build\MQTTnet.AspNetCore.nuspec
+		Build\MQTTnet.Extensions.ManagedClient.nuspec = Build\MQTTnet.Extensions.ManagedClient.nuspec
+		Build\MQTTnet.Extensions.Rpc.nuspec = Build\MQTTnet.Extensions.Rpc.nuspec
+		Build\MQTTnet.nuspec = Build\MQTTnet.nuspec
+		Build\upload.ps1 = Build\upload.ps1
 	EndProjectSection
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.NetCoreApp", "Frameworks\MQTTnet.NetCoreApp\MQTTnet.NetCoreApp.csproj", "{1A1B7F51-5328-4395-9D9C-07D70965825E}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{B3F60ECB-45BA-4C66-8903-8BB89CA67998}"
+	ProjectSection(SolutionItems) = preProject
+		.bettercodehub.yml = .bettercodehub.yml
+		appveyor.yml = appveyor.yml
+		LICENSE = LICENSE
+		README.md = README.md
+	EndProjectSection
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.TestApp.NetCore", "Tests\MQTTnet.TestApp.NetCore\MQTTnet.TestApp.NetCore.csproj", "{3D283AAD-AAA8-4339-8394-52F80B6304DB}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.TestApp.AspNetCore2", "Tests\MQTTnet.TestApp.AspNetCore2\MQTTnet.TestApp.AspNetCore2.csproj", "{C6FF8AEA-0855-41EC-A1F3-AC262225BAB9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.AspNetCore", "Source\MQTTnet.AspnetCore\MQTTnet.AspNetCore.csproj", "{F10C4060-F7EE-4A83-919F-FF723E72F94A}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Extensions", "Extensions", "{12816BCC-AF9E-44A9-9AE5-C246AF2A0587}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.Extensions.Rpc", "Source\MQTTnet.Extensions.Rpc\MQTTnet.Extensions.Rpc.csproj", "{C444E9C8-95FA-430E-9126-274129DE16CD}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.Benchmarks", "Tests\MQTTnet.Benchmarks\MQTTnet.Benchmarks.csproj", "{998D04DD-7CB0-45F5-A393-E2495C16399E}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.Extensions.ManagedClient", "Source\MQTTnet.Extensions.ManagedClient\MQTTnet.Extensions.ManagedClient.csproj", "{C400533A-8EBA-4F0B-BF4D-295C3708604B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.AspNetCore.Tests", "Tests\MQTTnet.AspNetCore.Tests\MQTTnet.AspNetCore.Tests.csproj", "{61B62223-F5D0-48E4-BBD6-2CBA9353CB5E}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Any CPU|Any CPU = Any CPU|Any CPU
-		Any CPU|ARM = Any CPU|ARM
-		Any CPU|x64 = Any CPU|x64
-		Any CPU|x86 = Any CPU|x86
 		Debug|Any CPU = Debug|Any CPU
 		Debug|ARM = Debug|ARM
 		Debug|x64 = Debug|x64
@@ -42,184 +59,190 @@ Global
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|Any CPU.ActiveCfg = Any CPU|Any CPU
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|Any CPU.Build.0 = Any CPU|Any CPU
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|ARM.ActiveCfg = Any CPU|Any CPU
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|ARM.Build.0 = Any CPU|Any CPU
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|x64.ActiveCfg = Any CPU|x64
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|x64.Build.0 = Any CPU|x64
-		{7B19B139-2E9D-4F1D-88B4-6180B4CF872A}.Any CPU|x86.ActiveCfg = Any CPU|x86
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MQTTnet.sln.DotSettings

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+	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/SPACE_WITHIN_PARENTHESES/@EntryValue">False</s:Boolean>
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README.md

@@ -1,127 +1,115 @@
 <p align="center">
 <img src="https://github.com/chkr1011/MQTTnet/blob/master/Images/Logo_128x128.png?raw=true" width="128">
+<br/>
+<br/>
 </p>
 
+[![NuGet Badge](https://buildstats.info/nuget/MQTTnet)](https://www.nuget.org/packages/MQTTnet)
+[![Build status](https://ci.appveyor.com/api/projects/status/ycit86voxfevm2aa/branch/master?svg=true)](https://ci.appveyor.com/project/chkr1011/mqttnet)
+[![BCH compliance](https://bettercodehub.com/edge/badge/chkr1011/MQTTnet?branch=master)](https://bettercodehub.com/)
+[![OpenCollective](https://opencollective.com/mqttnet/backers/badge.svg)](https://opencollective.com/mqttnet) 
+[![OpenCollective](https://opencollective.com/mqttnet/sponsors/badge.svg)](https://opencollective.com/mqttnet)
+
 # MQTTnet
-MQTTnet is a .NET library for MQTT based communication. It provides a MQTT client and a MQTT server. The implementation is based on the documentation from http://mqtt.org/.
+
+MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from <http://mqtt.org/>.
+
+## Features
+
+### General
+
+* Async support
+* TLS 1.2 support for client and server (but not UWP servers)
+* Extensible communication channels (i.e. In-Memory, TCP, TCP+TLS, WS)
+* Lightweight (only the low level implementation of MQTT, no overhead)
+* Performance optimized (processing ~70.000 messages / second)*
+* Interfaces included for mocking and testing
+* Access to internal trace messages
+* Unit tested (~90 tests)
+
+\* Tested on local machine (Intel i7 8700K) with MQTTnet client and server running in the same process using the TCP channel. The app for verification is part of this repository and stored in _/Tests/MQTTnet.TestApp.NetCore_.
+
+### Client
+
+* Communication via TCP (+TLS) or WS (WebSocket) supported
+* Included core _MqttClient_ with low level functionality
+* Also included _ManagedMqttClient_ which maintains the connection and subscriptions automatically. Also application messages are queued and re-scheduled for higher QoS levels automatically.
+* Rx support (via another project)
+* Compatible with Microsoft Azure IoT Hub
+
+### Server (broker)
+
+* List of connected clients available
+* Supports connected clients with different protocol versions at the same time
+* Able to publish its own messages (no loopback client required)
+* Able to receive every message (no loopback client required)
+* Extensible client credential validation
+* Retained messages are supported including persisting via interface methods (own implementation required)
+* WebSockets supported (via ASP.NET Core 2.0, separate nuget)
+* A custom message interceptor can be added which allows transforming or extending every received application message
+* Validate subscriptions and deny subscribing of certain topics depending on requesting clients
 
 ## Supported frameworks
 
-* .NET Standard 1.1+
+* .NET Standard 1.3+
 * .NET Core 1.1+
 * .NET Core App 1.1+
 * .NET Framework 4.5.2+ (x86, x64, AnyCPU)
-* Universal Windows (UWP) 10.0.10240+ (x86, x64, ARM, AnyCPU)
+* Mono 5.2+
+* Universal Windows Platform (UWP) 10.0.10240+ (x86, x64, ARM, AnyCPU, Windows 10 IoT Core)
+* Xamarin.Android 7.5+
+* Xamarin.iOS 10.14+
 
 ## Supported MQTT versions
 
+* 5.0.0 (planned)
 * 3.1.1
+* 3.1.0
 
 ## Nuget
-This library is available as a nuget package: https://www.nuget.org/packages/MQTTnet/
+
+This library is available as a nuget package: <https://www.nuget.org/packages/MQTTnet/>
+
+## Examples
+
+Please find examples and the documentation at the Wiki of this repository (<https://github.com/chkr1011/MQTTnet/wiki>).
 
 ## Contributions
-If you want to contribute to this project just create a pull request.
 
-# MqttClient
-## Example
+If you want to contribute to this project just create a pull request. But only pull requests which are matching the code style of this library will be accepted. Before creating a pull request please have a look at the library to get an overview of the required style.
+Also additions and updates in the Wiki are welcome.
 
-```c#
-var options = new MqttClientOptions
-{
-    Server = "localhost"
-};
+This project also listed at Open Collective (https://opencollective.com/mqttnet).
 
-var client = new MqttClientFactory().CreateMqttClient(options);
-client.ApplicationMessageReceived += (s, e) =>
-{
-    Console.WriteLine("### RECEIVED APPLICATION MESSAGE ###");
-    Console.WriteLine($"+ Topic = {e.ApplicationMessage.Topic}");
-    Console.WriteLine($"+ Payload = {Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}");
-    Console.WriteLine($"+ QoS = {e.ApplicationMessage.QualityOfServiceLevel}");
-    Console.WriteLine($"+ Retain = {e.ApplicationMessage.Retain}");
-    Console.WriteLine();
-};
+## References
 
-client.Connected += async (s, e) =>
-{
-    Console.WriteLine("### CONNECTED WITH SERVER ###");
+This library is used in the following projects:
 
-    await client.SubscribeAsync(new List<TopicFilter>
-    {
-        new TopicFilter("#", MqttQualityOfServiceLevel.AtMostOnce)
-    });
+* HA4IoT (Open Source Home Automation system for .NET, <https://github.com/chkr1011/HA4IoT>)
+* MQTT Client Rx (Wrapper for Reactive Extensions, <https://github.com/1iveowl/MQTTClient.rx>)
+* MQTT Tester (MQTT client test app for [Android](https://play.google.com/store/apps/details?id=com.liveowl.mqtttester) and [iOS](https://itunes.apple.com/us/app/mqtt-tester/id1278621826?mt=8))
+* Wirehome.Core (Open Source Home Automation system for .NET Core, <https://github.com/chkr1011/Wirehome.Core>)
 
-    Console.WriteLine("### SUBSCRIBED ###");
-};
+If you use this library and want to see your project here please let me know.
 
-client.Disconnected += async (s, e) => 
-{
-    Console.WriteLine("### DISCONNECTED FROM SERVER ###");
-    await Task.Delay(TimeSpan.FromSeconds(5));
+## MIT License
 
-    try
-    {
-        await client.ConnectAsync();
-    }
-    catch
-    {
-        Console.WriteLine("### RECONNECTING FAILED ###");
-    }
-};
+Copyright (c) 2017-2018 Christian Kratky
 
-try
-{
-    await client.ConnectAsync();
-}
-catch
-{
-    Console.WriteLine("### CONNECTING FAILED ###");
-}
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-Console.WriteLine("### WAITING FOR APPLICATION MESSAGES ###");
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-while (true)
-{
-    Console.ReadLine();
-
-    var applicationMessage = new MqttApplicationMessage(
-        "A/B/C",
-        Encoding.UTF8.GetBytes("Hello World"),
-        MqttQualityOfServiceLevel.AtLeastOnce,
-        false
-    );
-
-    await client.PublishAsync(applicationMessage);
-}
-```
-
-# MqttServer
-
-## Example 
-
-```c#
-var options = new MqttServerOptions
-{
-    ConnectionValidator = p =>
-    {
-        if (p.ClientId == "SpecialClient")
-        {
-            if (p.Username != "USER" || p.Password != "PASS")
-            {
-                return MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
-            }
-        }
-
-        return MqttConnectReturnCode.ConnectionAccepted;
-    }
-};
-
-var mqttServer = new MqttServerFactory().CreateMqttServer(options);
-mqttServer.Start();
-
-Console.WriteLine("Press any key to exit.");
-Console.ReadLine();
-
-mqttServer.Stop();
-```
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Source/MQTTnet.AspnetCore/ApplicationBuilderExtensions.cs

@@ -0,0 +1,58 @@
+using System;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
+using System.Linq;
+using MQTTnet.Server;
+using System.Collections.Generic;
+
+namespace MQTTnet.AspNetCore
+{
+    public static class ApplicationBuilderExtensions
+    {
+        public static IApplicationBuilder UseMqttEndpoint(this IApplicationBuilder app, string path = "/mqtt")
+        {
+            app.UseWebSockets();
+            app.Use(async (context, next) =>
+            {
+                if (!context.WebSockets.IsWebSocketRequest || context.Request.Path != path)
+                {
+                    await next();
+                    return;
+                }
+
+                string subProtocol = null;
+
+                if (context.Request.Headers.TryGetValue("Sec-WebSocket-Protocol", out var requestedSubProtocolValues))
+                {
+                    subProtocol = SelectSubProtocol(requestedSubProtocolValues);
+                }
+
+                var adapter = app.ApplicationServices.GetRequiredService<MqttWebSocketServerAdapter>();
+                using (var webSocket = await context.WebSockets.AcceptWebSocketAsync(subProtocol))
+                {
+                    var endpoint = $"{context.Connection.RemoteIpAddress}:{context.Connection.RemotePort}";
+                    await adapter.RunWebSocketConnectionAsync(webSocket, endpoint);
+                }
+            });
+
+            return app;
+        }
+
+        public static string SelectSubProtocol(IList<string> requestedSubProtocolValues)
+        {
+            // Order the protocols to also match "mqtt", "mqttv-3.1", "mqttv-3.11" etc.
+            return requestedSubProtocolValues
+                .OrderByDescending(p => p.Length)
+                .FirstOrDefault(p => p.ToLower().StartsWith("mqtt"));
+        }
+
+        public static IApplicationBuilder UseMqttServer(this IApplicationBuilder app, Action<IMqttServer> configure)
+        {
+            var server = app.ApplicationServices.GetRequiredService<IMqttServer>();
+
+            configure(server);
+
+            return app;
+        }
+    }
+}

Source/MQTTnet.AspnetCore/AspNetMqttServerOptionsBuilder.cs

@@ -0,0 +1,15 @@
+using MQTTnet.Server;
+using System;
+
+namespace MQTTnet.AspNetCore
+{
+    public class AspNetMqttServerOptionsBuilder : MqttServerOptionsBuilder
+    {
+        public AspNetMqttServerOptionsBuilder(IServiceProvider serviceProvider)
+        {
+            ServiceProvider = serviceProvider;
+        }
+
+        public IServiceProvider ServiceProvider { get; }
+    }
+}

Source/MQTTnet.AspnetCore/Client/MqttClientConnectionContextFactory.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Net;
+using MQTTnet.Adapter;
+using MQTTnet.AspNetCore.Client.Tcp;
+using MQTTnet.Client;
+using MQTTnet.Diagnostics;
+using MQTTnet.Serializer;
+
+namespace MQTTnet.AspNetCore.Client
+{
+    public class MqttClientConnectionContextFactory : IMqttClientAdapterFactory
+    {
+        public IMqttChannelAdapter CreateClientAdapter(IMqttClientOptions options, IMqttNetChildLogger logger)
+        {
+            if (options == null) throw new ArgumentNullException(nameof(options));
+
+            var serializer = new MqttPacketSerializer { ProtocolVersion = options.ProtocolVersion };
+
+            switch (options.ChannelOptions)
+            {
+                case MqttClientTcpOptions tcpOptions:
+                    {
+                        var endpoint = new DnsEndPoint(tcpOptions.Server, tcpOptions.GetPort());
+                        var tcpConnection = new TcpConnection(endpoint);
+                        return new MqttConnectionContext(serializer, tcpConnection);
+                    }
+                default:
+                    {
+                        throw new NotSupportedException();
+                    }
+            }
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/BufferExtensions.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public static class BufferExtensions
+    {
+        public static ArraySegment<byte> GetArray(this Memory<byte> memory)
+        {
+            return ((ReadOnlyMemory<byte>)memory).GetArray();
+        }
+
+        public static ArraySegment<byte> GetArray(this ReadOnlyMemory<byte> memory)
+        {
+            if (!MemoryMarshal.TryGetArray(memory, out var result))
+            {
+                throw new InvalidOperationException("Buffer backed by array was expected");
+            }
+            return result;
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/DuplexPipe.cs

@@ -0,0 +1,41 @@
+using System.IO.Pipelines;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public class DuplexPipe : IDuplexPipe
+    {
+        public DuplexPipe(PipeReader reader, PipeWriter writer)
+        {
+            Input = reader;
+            Output = writer;
+        }
+
+        public PipeReader Input { get; }
+
+        public PipeWriter Output { get; }
+
+        public static DuplexPipePair CreateConnectionPair(PipeOptions inputOptions, PipeOptions outputOptions)
+        {
+            var input = new Pipe(inputOptions);
+            var output = new Pipe(outputOptions);
+
+            var transportToApplication = new DuplexPipe(output.Reader, input.Writer);
+            var applicationToTransport = new DuplexPipe(input.Reader, output.Writer);
+
+            return new DuplexPipePair(applicationToTransport, transportToApplication);
+        }
+
+        // This class exists to work around issues with value tuple on .NET Framework
+        public readonly struct DuplexPipePair
+        {
+            public IDuplexPipe Transport { get; }
+            public IDuplexPipe Application { get; }
+
+            public DuplexPipePair(IDuplexPipe transport, IDuplexPipe application)
+            {
+                Transport = transport;
+                Application = application;
+            }
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/SocketAwaitable.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Diagnostics;
+using System.IO.Pipelines;
+using System.Net.Sockets;
+using System.Runtime.CompilerServices;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public class SocketAwaitable : ICriticalNotifyCompletion
+    {
+        private static readonly Action _callbackCompleted = () => { };
+
+        private readonly PipeScheduler _ioScheduler;
+
+        private Action _callback;
+        private int _bytesTransferred;
+        private SocketError _error;
+
+        public SocketAwaitable(PipeScheduler ioScheduler)
+        {
+            _ioScheduler = ioScheduler;
+        }
+
+        public bool IsCompleted => ReferenceEquals(_callback, _callbackCompleted);
+
+        public SocketAwaitable GetAwaiter() => this;
+
+        public int GetResult()
+        {
+            Debug.Assert(ReferenceEquals(_callback, _callbackCompleted));
+
+            _callback = null;
+
+            if (_error != SocketError.Success)
+            {
+                throw new SocketException((int)_error);
+            }
+
+            return _bytesTransferred;
+        }
+
+        public void OnCompleted(Action continuation)
+        {
+            if (ReferenceEquals(_callback, _callbackCompleted) ||
+                ReferenceEquals(Interlocked.CompareExchange(ref _callback, continuation, null), _callbackCompleted))
+            {
+                Task.Run(continuation);
+            }
+        }
+
+        public void UnsafeOnCompleted(Action continuation)
+        {
+            OnCompleted(continuation);
+        }
+
+        public void Complete(int bytesTransferred, SocketError socketError)
+        {
+            _error = socketError;
+            _bytesTransferred = bytesTransferred;
+            var continuation = Interlocked.Exchange(ref _callback, _callbackCompleted);
+
+            if (continuation != null)
+            {
+                _ioScheduler.Schedule(state => ((Action)state)(), continuation);
+            }
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/SocketReceiver.cs

@@ -0,0 +1,37 @@
+using System;
+using System.IO.Pipelines;
+using System.Net.Sockets;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public class SocketReceiver
+    {
+        private readonly Socket _socket;
+        private readonly SocketAsyncEventArgs _eventArgs = new SocketAsyncEventArgs();
+        private readonly SocketAwaitable _awaitable;
+
+        public SocketReceiver(Socket socket, PipeScheduler scheduler)
+        {
+            _socket = socket;
+            _awaitable = new SocketAwaitable(scheduler);
+            _eventArgs.UserToken = _awaitable;
+            _eventArgs.Completed += (_, e) => ((SocketAwaitable)e.UserToken).Complete(e.BytesTransferred, e.SocketError);
+        }
+
+        public SocketAwaitable ReceiveAsync(Memory<byte> buffer)
+        {
+#if NETCOREAPP2_1
+            _eventArgs.SetBuffer(buffer);
+#else
+            var segment = buffer.GetArray();
+            _eventArgs.SetBuffer(segment.Array, segment.Offset, segment.Count);
+#endif
+            if (!_socket.ReceiveAsync(_eventArgs))
+            {
+                _awaitable.Complete(_eventArgs.BytesTransferred, _eventArgs.SocketError);
+            }
+
+            return _awaitable;
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/SocketSender.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Buffers;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO.Pipelines;
+using System.Net.Sockets;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public class SocketSender
+    {
+        private readonly Socket _socket;
+        private readonly SocketAsyncEventArgs _eventArgs = new SocketAsyncEventArgs();
+        private readonly SocketAwaitable _awaitable;
+
+        private List<ArraySegment<byte>> _bufferList;
+
+        public SocketSender(Socket socket, PipeScheduler scheduler)
+        {
+            _socket = socket;
+            _awaitable = new SocketAwaitable(scheduler);
+            _eventArgs.UserToken = _awaitable;
+            _eventArgs.Completed += (_, e) => ((SocketAwaitable)e.UserToken).Complete(e.BytesTransferred, e.SocketError);
+        }
+
+        public SocketAwaitable SendAsync(in ReadOnlySequence<byte> buffers)
+        {
+            if (buffers.IsSingleSegment)
+            {
+                return SendAsync(buffers.First);
+            }
+
+#if NETCOREAPP2_1
+            if (!_eventArgs.MemoryBuffer.Equals(Memory<byte>.Empty))
+#else
+            if (_eventArgs.Buffer != null)
+#endif
+            {
+                _eventArgs.SetBuffer(null, 0, 0);
+            }
+
+            _eventArgs.BufferList = GetBufferList(buffers);
+
+            if (!_socket.SendAsync(_eventArgs))
+            {
+                _awaitable.Complete(_eventArgs.BytesTransferred, _eventArgs.SocketError);
+            }
+
+            return _awaitable;
+        }
+
+        private SocketAwaitable SendAsync(ReadOnlyMemory<byte> memory)
+        {
+            // The BufferList getter is much less expensive then the setter.
+            if (_eventArgs.BufferList != null)
+            {
+                _eventArgs.BufferList = null;
+            }
+
+#if NETCOREAPP2_1
+            _eventArgs.SetBuffer(MemoryMarshal.AsMemory(memory));
+#else
+            var segment = memory.GetArray();
+            _eventArgs.SetBuffer(segment.Array, segment.Offset, segment.Count);
+#endif
+            if (!_socket.SendAsync(_eventArgs))
+            {
+                _awaitable.Complete(_eventArgs.BytesTransferred, _eventArgs.SocketError);
+            }
+
+            return _awaitable;
+        }
+
+        private List<ArraySegment<byte>> GetBufferList(in ReadOnlySequence<byte> buffer)
+        {
+            Debug.Assert(!buffer.IsEmpty);
+            Debug.Assert(!buffer.IsSingleSegment);
+
+            if (_bufferList == null)
+            {
+                _bufferList = new List<ArraySegment<byte>>();
+            }
+            else
+            {
+                // Buffers are pooled, so it's OK to root them until the next multi-buffer write.
+                _bufferList.Clear();
+            }
+
+            foreach (var b in buffer)
+            {
+                _bufferList.Add(b.GetArray());
+            }
+
+            return _bufferList;
+        }
+    }
+}

Source/MQTTnet.AspnetCore/Client/Tcp/TcpConnection.cs

@@ -0,0 +1,258 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.IO.Pipelines;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Connections;
+using Microsoft.AspNetCore.Http.Features;
+using MQTTnet.Exceptions;
+
+namespace MQTTnet.AspNetCore.Client.Tcp
+{
+    public class TcpConnection : ConnectionContext
+    {
+        private volatile bool _aborted;
+        private readonly EndPoint _endPoint;
+        private SocketSender _sender;
+        private SocketReceiver _receiver;
+
+        private Socket _socket;
+        private IDuplexPipe _application;
+
+        public bool IsConnected { get; private set; }
+        public override string ConnectionId { get; set; }
+        public override IFeatureCollection Features { get; }
+        public override IDictionary<object, object> Items { get; set; }
+        public override IDuplexPipe Transport { get; set; }
+
+        public TcpConnection(EndPoint endPoint)
+        {
+            _endPoint = endPoint;
+        }
+
+        public TcpConnection(Socket socket)
+        {
+            _socket = socket;
+            _endPoint = socket.RemoteEndPoint;
+
+            _sender = new SocketSender(_socket, PipeScheduler.ThreadPool);
+            _receiver = new SocketReceiver(_socket, PipeScheduler.ThreadPool);
+        }
+
+        public Task DisposeAsync()
+        {
+            IsConnected = false;
+
+            Transport?.Output.Complete();
+            Transport?.Input.Complete();
+
+            _socket?.Dispose();
+
+            return Task.CompletedTask;
+        }
+
+        public async Task StartAsync()
+        {
+            if (_socket == null)
+            {
+                _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+                _sender = new SocketSender(_socket, PipeScheduler.ThreadPool);
+                _receiver = new SocketReceiver(_socket, PipeScheduler.ThreadPool);
+                await _socket.ConnectAsync(_endPoint);
+            }
+
+            var pair = DuplexPipe.CreateConnectionPair(PipeOptions.Default, PipeOptions.Default);
+
+            Transport = pair.Transport;
+            _application = pair.Application;
+
+            _ = ExecuteAsync();
+
+            IsConnected = true;
+        }
+
+        private async Task ExecuteAsync()
+        {
+            Exception sendError = null;
+            try
+            {
+                // Spawn send and receive logic
+                var receiveTask = DoReceive();
+                var sendTask = DoSend();
+
+                // If the sending task completes then close the receive
+                // We don't need to do this in the other direction because the kestrel
+                // will trigger the output closing once the input is complete.
+                if (await Task.WhenAny(receiveTask, sendTask) == sendTask)
+                {
+                    // Tell the reader it's being aborted
+                    _socket.Dispose();
+                }
+
+                // Now wait for both to complete
+                await receiveTask;
+                sendError = await sendTask;
+
+                // Dispose the socket(should noop if already called)
+                _socket.Dispose();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Unexpected exception in {nameof(TcpConnection)}.{nameof(StartAsync)}: " + ex);
+            }
+            finally
+            {
+                // Complete the output after disposing the socket
+                _application.Input.Complete(sendError);
+            }
+        }
+        private async Task DoReceive()
+        {
+            Exception error = null;
+
+            try
+            {
+                await ProcessReceives();
+            }
+            catch (SocketException ex) when (ex.SocketErrorCode == SocketError.ConnectionReset)
+            {
+                error = new MqttCommunicationException(ex);
+            }
+            catch (SocketException ex) when (ex.SocketErrorCode == SocketError.OperationAborted ||
+                                             ex.SocketErrorCode == SocketError.ConnectionAborted ||
+                                             ex.SocketErrorCode == SocketError.Interrupted ||
+                                             ex.SocketErrorCode == SocketError.InvalidArgument)
+            {
+                if (!_aborted)
+                {
+                    // Calling Dispose after ReceiveAsync can cause an "InvalidArgument" error on *nix.
+                    error = ConnectionAborted();
+                }
+            }
+            catch (ObjectDisposedException)
+            {
+                if (!_aborted)
+                {
+                    error = ConnectionAborted();
+                }
+            }
+            catch (IOException ex)
+            {
+                error = ex;
+            }
+            catch (Exception ex)
+            {
+                error = new IOException(ex.Message, ex);
+            }
+            finally
+            {
+                if (_aborted)
+                {
+                    error = error ?? ConnectionAborted();
+                }
+
+                _application.Output.Complete(error);
+            }
+        }
+
+        private async Task ProcessReceives()
+        {
+            while (true)
+            {
+                // Ensure we have some reasonable amount of buffer space
+                var buffer = _application.Output.GetMemory();
+
+                var bytesReceived = await _receiver.ReceiveAsync(buffer);
+
+                if (bytesReceived == 0)
+                {
+                    // FIN
+                    break;
+                }
+
+                _application.Output.Advance(bytesReceived);
+
+                var flushTask = _application.Output.FlushAsync();
+
+                if (!flushTask.IsCompleted)
+                {
+                    await flushTask;
+                }
+
+                var result = flushTask.GetAwaiter().GetResult();
+                if (result.IsCompleted)
+                {
+                    // Pipe consumer is shut down, do we stop writing
+                    break;
+                }
+            }
+        }
+
+        private Exception ConnectionAborted()
+        {
+            return new MqttCommunicationException("Connection Aborted");
+        }
+
+        private async Task<Exception> DoSend()
+        {
+            Exception error = null;
+
+            try
+            {
+                await ProcessSends();
+            }
+            catch (SocketException ex) when (ex.SocketErrorCode == SocketError.OperationAborted)
+            {
+            }
+            catch (ObjectDisposedException)
+            {
+            }
+            catch (IOException ex)
+            {
+                error = ex;
+            }
+            catch (Exception ex)
+            {
+                error = new IOException(ex.Message, ex);
+            }
+            finally
+            {
+                _aborted = true;
+                _socket.Shutdown(SocketShutdown.Both);
+            }
+
+            return error;
+        }
+
+        private async Task ProcessSends()
+        {
+            while (true)
+            {
+                // Wait for data to write from the pipe producer
+                var result = await _application.Input.ReadAsync();
+                var buffer = result.Buffer;
+
+                if (result.IsCanceled)
+                {
+                    break;
+                }
+
+                var end = buffer.End;
+                var isCompleted = result.IsCompleted;
+                if (!buffer.IsEmpty)
+                {
+                    await _sender.SendAsync(buffer);
+                }
+
+                _application.Input.AdvanceTo(end);
+
+                if (isCompleted)
+                {
+                    break;
+                }
+            }
+        }
+    }
+}

Source/MQTTnet.AspnetCore/ConnectionBuilderExtensions.cs

@@ -0,0 +1,12 @@
+using Microsoft.AspNetCore.Connections;
+
+namespace MQTTnet.AspNetCore
+{
+    public static class ConnectionBuilderExtensions
+    {
+        public static IConnectionBuilder UseMqtt(this IConnectionBuilder builder)
+        {
+            return builder.UseConnectionHandler<MqttConnectionHandler>();
+        }
+    }
+}

Source/MQTTnet.AspnetCore/MQTTnet.AspNetCore.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <Product />
+    <Company />
+    <Authors />
+    <PackageId />
+    <LangVersion>7.2</LangVersion>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+    <DefineConstants>RELEASE;NETSTANDARD2_0</DefineConstants>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Connections.Abstractions" Version="2.1.0" />
+    <PackageReference Include="Microsoft.AspNetCore.WebSockets" Version="2.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="2.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MQTTnet\MQTTnet.csproj" />
+  </ItemGroup>
+
+</Project>

Source/MQTTnet.AspnetCore/MqttConnectionContext.cs

@@ -0,0 +1,117 @@
+using Microsoft.AspNetCore.Connections;
+using MQTTnet.Adapter;
+using MQTTnet.AspNetCore.Client.Tcp;
+using MQTTnet.Packets;
+using MQTTnet.Serializer;
+using System;
+using System.IO.Pipelines;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MQTTnet.AspNetCore
+{
+    public class MqttConnectionContext : IMqttChannelAdapter
+    {
+        public MqttConnectionContext(
+            IMqttPacketSerializer packetSerializer,
+            ConnectionContext connection)
+        {
+            PacketSerializer = packetSerializer;
+            Connection = connection;
+        }
+
+        public string Endpoint => Connection.ConnectionId;
+        public ConnectionContext Connection { get; }
+        public IMqttPacketSerializer PacketSerializer { get; }
+        public event EventHandler ReadingPacketStarted;
+        public event EventHandler ReadingPacketCompleted;
+
+        public Task ConnectAsync(TimeSpan timeout, CancellationToken cancellationToken)
+        {
+            if (Connection is TcpConnection tcp && !tcp.IsConnected)
+            {
+                return tcp.StartAsync();
+            }
+            return Task.CompletedTask;
+        }
+
+        public Task DisconnectAsync(TimeSpan timeout, CancellationToken cancellationToken)
+        {
+            Connection.Transport.Input.Complete();
+            Connection.Transport.Output.Complete();
+
+            return Task.CompletedTask;
+        }
+
+        public async Task<MqttBasePacket> ReceivePacketAsync(TimeSpan timeout, CancellationToken cancellationToken)
+        {
+            var input = Connection.Transport.Input;
+
+            try
+            {
+                while (!cancellationToken.IsCancellationRequested)
+                {
+                    ReadResult readResult;
+                    var readTask = input.ReadAsync(cancellationToken);
+                    if (readTask.IsCompleted)
+                    {
+                        readResult = readTask.Result;
+                    }
+                    else
+                    {
+                        readResult = await readTask;
+                    }
+
+                    var buffer = readResult.Buffer;
+
+                    var consumed = buffer.Start;
+                    var observed = buffer.Start;
+
+                    try
+                    {
+                        if (!buffer.IsEmpty)
+                        {
+                            if (PacketSerializer.TryDeserialize(buffer, out var packet, out consumed, out observed))
+                            {
+                                return packet;
+                            }
+                            else
+                            {
+                                // we did receive something but the message is not yet complete
+                                ReadingPacketStarted?.Invoke(this, EventArgs.Empty);
+                            }
+                        }
+                        else if (readResult.IsCompleted)
+                        {
+                            break;
+                        }
+                    }
+                    finally
+                    {
+                        // The buffer was sliced up to where it was consumed, so we can just advance to the start.
+                        // We mark examined as buffer.End so that if we didn't receive a full frame, we'll wait for more data
+                        // before yielding the read again.
+                        input.AdvanceTo(consumed, observed);
+                    }
+                }
+            }
+            finally
+            {
+                ReadingPacketCompleted?.Invoke(this, EventArgs.Empty);
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+            return null;
+        }
+
+        public Task SendPacketAsync(MqttBasePacket packet, CancellationToken cancellationToken)
+        {
+            var buffer = PacketSerializer.Serialize(packet);
+            return Connection.Transport.Output.WriteAsync(buffer.AsMemory(), cancellationToken).AsTask();
+        }
+
+        public void Dispose()
+        {
+        }
+    }
+}

Source/MQTTnet.AspnetCore/MqttConnectionHandler.cs

@@ -0,0 +1,49 @@
+using Microsoft.AspNetCore.Connections;
+using Microsoft.AspNetCore.Connections.Features;
+using MQTTnet.Adapter;
+using MQTTnet.Serializer;
+using MQTTnet.Server;
+using System;
+using System.Threading.Tasks;
+
+namespace MQTTnet.AspNetCore
+{
+    public class MqttConnectionHandler : ConnectionHandler, IMqttServerAdapter
+    {        
+        public event EventHandler<MqttServerAdapterClientAcceptedEventArgs> ClientAccepted;
+
+        public override async Task OnConnectedAsync(ConnectionContext connection)
+        {
+            // required for websocket transport to work
+            var transferFormatFeature = connection.Features.Get<ITransferFormatFeature>();
+            if (transferFormatFeature != null)
+            {
+                transferFormatFeature.ActiveFormat = TransferFormat.Binary;
+            }
+
+
+            var serializer = new MqttPacketSerializer();
+            using (var adapter = new MqttConnectionContext(serializer, connection))
+            {
+                var args = new MqttServerAdapterClientAcceptedEventArgs(adapter);
+                ClientAccepted?.Invoke(this, args);
+
+                await args.SessionTask;
+            }
+        }
+
+        public Task StartAsync(IMqttServerOptions options)
+        {
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync()
+        {
+            return Task.CompletedTask;
+        }
+        
+        public void Dispose()
+        {
+        }
+    }
+}

Source/MQTTnet.AspnetCore/MqttHostedServer.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Hosting;
+using MQTTnet.Adapter;
+using MQTTnet.Diagnostics;
+using MQTTnet.Server;
+
+namespace MQTTnet.AspNetCore
+{
+    public class MqttHostedServer : MqttServer, IHostedService
+    {
+        private readonly IMqttServerOptions _options;
+
+        public MqttHostedServer(IMqttServerOptions options, IEnumerable<IMqttServerAdapter> adapters, IMqttNetLogger logger) 
+            : base(adapters, logger.CreateChildLogger(nameof(MqttHostedServer)))
+        {
+            _options = options ?? throw new ArgumentNullException(nameof(options));
+        }
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            return StartAsync(_options);
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return StopAsync();
+        }
+    }
+}

Source/MQTTnet.AspnetCore/MqttWebSocketServerAdapter.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Net.WebSockets;
+using System.Threading.Tasks;
+using MQTTnet.Adapter;
+using MQTTnet.Diagnostics;
+using MQTTnet.Implementations;
+using MQTTnet.Serializer;
+using MQTTnet.Server;
+
+namespace MQTTnet.AspNetCore
+{
+    public class MqttWebSocketServerAdapter : IMqttServerAdapter
+    {
+        public event EventHandler<MqttServerAdapterClientAcceptedEventArgs> ClientAccepted;
+
+        public Task StartAsync(IMqttServerOptions options)
+        {
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync()
+        {
+            return Task.CompletedTask;
+        }
+
+        public async Task RunWebSocketConnectionAsync(WebSocket webSocket, string endpoint)
+        {
+            if (webSocket == null) throw new ArgumentNullException(nameof(webSocket));
+
+            var clientAdapter = new MqttChannelAdapter(new MqttWebSocketChannel(webSocket, endpoint), new MqttPacketSerializer(), new MqttNetLogger().CreateChildLogger(nameof(MqttWebSocketServerAdapter)));
+
+            var eventArgs = new MqttServerAdapterClientAcceptedEventArgs(clientAdapter);
+            ClientAccepted?.Invoke(this, eventArgs);
+
+            if (eventArgs.SessionTask != null)
+            {
+                await eventArgs.SessionTask.ConfigureAwait(false);
+            }
+        }
+        
+        public void Dispose()
+        {
+            StopAsync().GetAwaiter().GetResult();
+        }
+    }
+}

Source/MQTTnet.AspnetCore/ReaderExtensions.cs

@@ -0,0 +1,88 @@
+using System;
+using System.Buffers;
+using MQTTnet.Adapter;
+using MQTTnet.Exceptions;
+using MQTTnet.Packets;
+using MQTTnet.Serializer;
+
+namespace MQTTnet.AspNetCore
+{
+    public static class ReaderExtensions
+    {
+        public static bool TryDeserialize(this IMqttPacketSerializer serializer, in ReadOnlySequence<byte> input, out MqttBasePacket packet, out SequencePosition consumed, out SequencePosition observed)
+        {
+            packet = null;
+            consumed = input.Start;
+            observed = input.End;
+            var copy = input;
+            if (copy.Length < 2)
+            {
+                return false;
+            }
+
+            var fixedheader = copy.First.Span[0];
+            if (!TryReadBodyLength(ref copy, out var bodyLength))
+            {
+                return false;
+            }
+
+            if (copy.Length < bodyLength)
+            {
+                return false;
+            }
+
+            var bodySlice = copy.Slice(0, bodyLength);
+            var buffer = bodySlice.GetArray();
+            packet = serializer.Deserialize(new ReceivedMqttPacket(fixedheader, new MqttPacketBodyReader(buffer, 0, buffer.Length)));
+            consumed = bodySlice.End;
+            observed = bodySlice.End;
+            return true;
+        }
+
+        private static byte[] GetArray(this in ReadOnlySequence<byte> input)
+        {
+            if (input.IsSingleSegment)
+            {
+                return input.First.Span.ToArray();
+            }
+
+            // Should be rare
+            return input.ToArray();
+        }
+
+        private static bool TryReadBodyLength(ref ReadOnlySequence<byte> input, out int result)
+        {
+            // Alorithm taken from https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/errata01/os/mqtt-v3.1.1-errata01-os-complete.html.
+            var multiplier = 1;
+            var value = 0;
+            byte encodedByte;
+            var index = 1;
+            result = 0;
+
+            var temp = input.Slice(0, Math.Min(5, input.Length)).GetArray();
+
+            do
+            {
+                if (index == temp.Length)
+                {
+                    return false;
+                }
+                encodedByte = temp[index];
+                index++;
+
+                value += (byte)(encodedByte & 127) * multiplier;
+                if (multiplier > 128 * 128 * 128)
+                {
+                    throw new MqttProtocolViolationException($"Remaining length is invalid (Data={string.Join(",", temp.AsSpan(1, index).ToArray())}).");
+                }
+
+                multiplier *= 128;
+            } while ((encodedByte & 128) != 0);
+
+            input = input.Slice(index);
+
+            result = value;
+            return true;
+        }
+    }
+}

Source/MQTTnet.AspnetCore/ServiceCollectionExtensions.cs

@@ -0,0 +1,98 @@
+using System;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using MQTTnet.Adapter;
+using MQTTnet.Diagnostics;
+using MQTTnet.Server;
+using MQTTnet.Implementations;
+
+namespace MQTTnet.AspNetCore
+{
+    public static class ServiceCollectionExtensions
+    {
+        public static IServiceCollection AddHostedMqttServer(this IServiceCollection services, IMqttServerOptions options)
+        {
+            if (options == null) throw new ArgumentNullException(nameof(options));
+            
+            services.AddSingleton(options);
+
+            services.AddHostedMqttServer();
+
+            return services;
+        }
+
+        public static IServiceCollection AddHostedMqttServer(this IServiceCollection services, Action<MqttServerOptionsBuilder> configure)
+        {
+            services.AddSingleton<IMqttServerOptions>(s => {
+                var builder = new MqttServerOptionsBuilder();
+                configure(builder);
+                return builder.Build();
+            });
+
+            services.AddHostedMqttServer();
+
+            return services;
+        }
+
+        public static IServiceCollection AddHostedMqttServerWithServices(this IServiceCollection services, Action<AspNetMqttServerOptionsBuilder> configure)
+        {
+            services.AddSingleton<IMqttServerOptions>(s => {
+                var builder = new AspNetMqttServerOptionsBuilder(s);
+                configure(builder);
+                return builder.Build();
+            });
+
+            services.AddHostedMqttServer();
+
+            return services;
+        }
+
+        public static IServiceCollection AddHostedMqttServer<TOptions>(this IServiceCollection services)
+            where TOptions : class, IMqttServerOptions
+        {
+            services.AddSingleton<IMqttServerOptions, TOptions>();
+
+            services.AddHostedMqttServer();
+
+            return services;
+        }
+
+        private static IServiceCollection AddHostedMqttServer(this IServiceCollection services)
+        {
+            var logger = new MqttNetLogger();
+            var childLogger = logger.CreateChildLogger();
+
+            services.AddSingleton<IMqttNetLogger>(logger);
+            services.AddSingleton(childLogger);
+            services.AddSingleton<MqttHostedServer>();
+            services.AddSingleton<IHostedService>(s => s.GetService<MqttHostedServer>());
+            services.AddSingleton<IMqttServer>(s => s.GetService<MqttHostedServer>());
+            
+            return services;
+        }
+
+        public static IServiceCollection AddMqttWebSocketServerAdapter(this IServiceCollection services)
+        {
+            services.AddSingleton<MqttWebSocketServerAdapter>();
+            services.AddSingleton<IMqttServerAdapter>(s => s.GetService<MqttWebSocketServerAdapter>());
+
+            return services;
+        }
+
+        public static IServiceCollection AddMqttTcpServerAdapter(this IServiceCollection services)
+        {
+            services.AddSingleton<MqttTcpServerAdapter>();
+            services.AddSingleton<IMqttServerAdapter>(s => s.GetService<MqttTcpServerAdapter>());
+
+            return services;
+        }
+
+        public static IServiceCollection AddMqttConnectionHandler(this IServiceCollection services)
+        {
+            services.AddSingleton<MqttConnectionHandler>();
+            services.AddSingleton<IMqttServerAdapter>(s => s.GetService<MqttConnectionHandler>());
+
+            return services;
+        }
+    }
+}

Source/MQTTnet.Extensions.ManagedClient/ApplicationMessageProcessedEventArgs.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace MQTTnet.Extensions.ManagedClient
+{
+    public class ApplicationMessageProcessedEventArgs : EventArgs
+    {
+        public ApplicationMessageProcessedEventArgs(ManagedMqttApplicationMessage applicationMessage, Exception exception)
+        {
+            ApplicationMessage = applicationMessage ?? throw new ArgumentNullException(nameof(applicationMessage));
+            Exception = exception;
+        }
+
+        public ManagedMqttApplicationMessage ApplicationMessage { get; }
+        public Exception Exception { get; }
+
+        public bool HasFailed => Exception != null;
+        public bool HasSucceeded => Exception == null;
+    }
+}

Source/MQTTnet.Extensions.ManagedClient/IManagedMqttClient.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using MQTTnet.Client;
+
+namespace MQTTnet.Extensions.ManagedClient
+{
+    public interface IManagedMqttClient : IApplicationMessageReceiver, IApplicationMessagePublisher, IDisposable
+    {
+        bool IsStarted { get; }
+        bool IsConnected { get; }
+        int PendingApplicationMessagesCount { get; }
+
+        event EventHandler<MqttClientConnectedEventArgs> Connected;
+        event EventHandler<MqttClientDisconnectedEventArgs> Disconnected;
+
+        event EventHandler<ApplicationMessageProcessedEventArgs> ApplicationMessageProcessed;
+
+        event EventHandler<MqttManagedProcessFailedEventArgs> ConnectingFailed;
+        event EventHandler<MqttManagedProcessFailedEventArgs> SynchronizingSubscriptionsFailed;
+        
+        Task StartAsync(IManagedMqttClientOptions options);
+        Task StopAsync();
+
+        Task SubscribeAsync(IEnumerable<TopicFilter> topicFilters);
+        Task UnsubscribeAsync(IEnumerable<string> topics);
+
+        Task PublishAsync(ManagedMqttApplicationMessage applicationMessages);
+    }
+}

Source/MQTTnet.Extensions.ManagedClient/IManagedMqttClientOptions.cs

@@ -0,0 +1,16 @@
+using System;
+using MQTTnet.Client;
+
+namespace MQTTnet.Extensions.ManagedClient
+{
+    public interface IManagedMqttClientOptions
+    {
+        IMqttClientOptions ClientOptions { get; }
+
+        TimeSpan AutoReconnectDelay { get; }
+
+        TimeSpan ConnectionCheckInterval { get; }
+
+        IManagedMqttClientStorage Storage { get; }
+    }
+}

Source/MQTTnet.Extensions.ManagedClient/IManagedMqttClientStorage.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace MQTTnet.Extensions.ManagedClient
+{
+    public interface IManagedMqttClientStorage
+    {
+        Task SaveQueuedMessagesAsync(IList<ManagedMqttApplicationMessage> messages);
+
+        Task<IList<ManagedMqttApplicationMessage>> LoadQueuedMessagesAsync();
+    }
+}

Source/MQTTnet.Extensions.ManagedClient/MQTTnet.Extensions.ManagedClient.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard1.3;netstandard2.0;net452;net461</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' == 'Windows_NT' AND '$(MSBuildRuntimeType)' != 'Core'">$(TargetFrameworks);uap10.0</TargetFrameworks>
+    <Product />
+    <Company />
+    <Authors />
+    <PackageId />
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(TargetFramework)' == 'uap10.0'">
+    <CopyLocalLockFileAssemblies>false</CopyLocalLockFileAssemblies>
+    <NugetTargetMoniker>UAP,Version=v10.0</NugetTargetMoniker>
+    <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
+    <TargetPlatformVersion>10.0.17134.0</TargetPlatformVersion>
+    <TargetPlatformMinVersion>10.0.10240.0</TargetPlatformMinVersion>
+    <TargetFrameworkIdentifier>.NETCore</TargetFrameworkIdentifier>
+    <TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
+    <DefineConstants>$(DefineConstants);WINDOWS_UWP</DefineConstants>
+    <DefaultLanguage>en</DefaultLanguage>
+    <LanguageTargets>$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets</LanguageTargets>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MQTTnet\MQTTnet.csproj" />
+  </ItemGroup>
+
+</Project>