├── .gitignore ├── ActivityPubBotDotNet.sln ├── Client └── KristoffferStrube.ActivityPubBotDotNet.Client │ ├── App.razor │ ├── KristoffferStrube.ActivityPubBotDotNet.Client.csproj │ ├── MainLayout.razor │ ├── Pages │ └── Index.razor │ ├── Program.cs │ ├── Properties │ └── launchSettings.json │ ├── _Imports.razor │ └── wwwroot │ ├── css │ └── app.css │ └── index.html ├── LICENSE ├── README.md └── Server └── KristofferStrube.ActivityPubBotDotNet.Server ├── .db └── Here the DB will be generated.txt ├── ActivityPubDbContext.cs ├── KristofferStrube.ActivityPubBotDotNet.Server.csproj ├── Migrations ├── 20221206235626_InitialCreate.Designer.cs ├── 20221206235626_InitialCreate.cs └── ActivityPubDbContextModelSnapshot.cs ├── Program.cs ├── Properties └── launchSettings.json ├── Services ├── ActivityPubService.cs ├── IOutboxService.cs └── RSSFeedOutboxService.cs ├── Users ├── FollowRelation.cs ├── UserInfo.cs └── UsersApi.cs ├── WebFinger ├── ResourceLink.cs ├── WebFingerApi.cs └── WebFingerResource.cs ├── appsettings.Development.json └── appsettings.json /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Aa][Rr][Mm]/ 27 | [Aa][Rr][Mm]64/ 28 | bld/ 29 | [Bb]in/ 30 | [Oo]bj/ 31 | [Ll]og/ 32 | [Ll]ogs/ 33 | 34 | # Visual Studio 2015/2017 cache/options directory 35 | .vs/ 36 | # Uncomment if you have tasks that create the project's static files in wwwroot 37 | #wwwroot/ 38 | 39 | # Visual Studio 2017 auto generated files 40 | Generated\ Files/ 41 | 42 | # MSTest test Results 43 | [Tt]est[Rr]esult*/ 44 | [Bb]uild[Ll]og.* 45 | 46 | # NUnit 47 | *.VisualState.xml 48 | TestResult.xml 49 | nunit-*.xml 50 | 51 | # Build Results of an ATL Project 52 | [Dd]ebugPS/ 53 | [Rr]eleasePS/ 54 | dlldata.c 55 | 56 | # Benchmark Results 57 | BenchmarkDotNet.Artifacts/ 58 | 59 | # .NET Core 60 | project.lock.json 61 | project.fragment.lock.json 62 | artifacts/ 63 | 64 | # StyleCop 65 | StyleCopReport.xml 66 | 67 | # Files built by Visual Studio 68 | *_i.c 69 | *_p.c 70 | *_h.h 71 | *.ilk 72 | *.meta 73 | *.obj 74 | *.iobj 75 | *.pch 76 | *.pdb 77 | *.ipdb 78 | *.pgc 79 | *.pgd 80 | *.rsp 81 | *.sbr 82 | *.tlb 83 | *.tli 84 | *.tlh 85 | *.tmp 86 | *.tmp_proj 87 | *_wpftmp.csproj 88 | *.log 89 | *.vspscc 90 | *.vssscc 91 | .builds 92 | *.pidb 93 | *.svclog 94 | *.scc 95 | 96 | # Chutzpah Test files 97 | _Chutzpah* 98 | 99 | # Visual C++ cache files 100 | ipch/ 101 | *.aps 102 | *.ncb 103 | *.opendb 104 | *.opensdf 105 | *.sdf 106 | *.cachefile 107 | *.VC.db 108 | *.VC.VC.opendb 109 | 110 | # Visual Studio profiler 111 | *.psess 112 | *.vsp 113 | *.vspx 114 | *.sap 115 | 116 | # Visual Studio Trace Files 117 | *.e2e 118 | 119 | # TFS 2012 Local Workspace 120 | $tf/ 121 | 122 | # Guidance Automation Toolkit 123 | *.gpState 124 | 125 | # ReSharper is a .NET coding add-in 126 | _ReSharper*/ 127 | *.[Rr]e[Ss]harper 128 | *.DotSettings.user 129 | 130 | # TeamCity is a build add-in 131 | _TeamCity* 132 | 133 | # DotCover is a Code Coverage Tool 134 | *.dotCover 135 | 136 | # AxoCover is a Code Coverage Tool 137 | .axoCover/* 138 | !.axoCover/settings.json 139 | 140 | # Visual Studio code coverage results 141 | *.coverage 142 | *.coveragexml 143 | 144 | # NCrunch 145 | _NCrunch_* 146 | .*crunch*.local.xml 147 | nCrunchTemp_* 148 | 149 | # MightyMoose 150 | *.mm.* 151 | AutoTest.Net/ 152 | 153 | # Web workbench (sass) 154 | .sass-cache/ 155 | 156 | # Installshield output folder 157 | [Ee]xpress/ 158 | 159 | # DocProject is a documentation generator add-in 160 | DocProject/buildhelp/ 161 | DocProject/Help/*.HxT 162 | DocProject/Help/*.HxC 163 | DocProject/Help/*.hhc 164 | DocProject/Help/*.hhk 165 | DocProject/Help/*.hhp 166 | DocProject/Help/Html2 167 | DocProject/Help/html 168 | 169 | # Click-Once directory 170 | publish/ 171 | 172 | # Publish Web Output 173 | *.[Pp]ublish.xml 174 | *.azurePubxml 175 | # Note: Comment the next line if you want to checkin your web deploy settings, 176 | # but database connection strings (with potential passwords) will be unencrypted 177 | *.pubxml 178 | *.publishproj 179 | 180 | # Microsoft Azure Web App publish settings. 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Backup files are not needed, 246 | # because we have git ;-) 247 | _UpgradeReport_Files/ 248 | Backup*/ 249 | UpgradeLog*.XML 250 | UpgradeLog*.htm 251 | ServiceFabricBackup/ 252 | *.rptproj.bak 253 | 254 | # SQL Server files 255 | *.mdf 256 | *.ldf 257 | *.ndf 258 | 259 | # Business Intelligence projects 260 | *.rdl.data 261 | *.bim.layout 262 | *.bim_*.settings 263 | *.rptproj.rsuser 264 | *- [Bb]ackup.rdl 265 | *- [Bb]ackup ([0-9]).rdl 266 | *- [Bb]ackup ([0-9][0-9]).rdl 267 | 268 | # Microsoft Fakes 269 | FakesAssemblies/ 270 | 271 | # GhostDoc plugin setting file 272 | *.GhostDoc.xml 273 | 274 | # Node.js Tools for Visual Studio 275 | .ntvs_analysis.dat 276 | node_modules/ 277 | 278 | # Visual Studio 6 build log 279 | *.plg 280 | 281 | # Visual Studio 6 workspace options file 282 | *.opt 283 | 284 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 285 | *.vbw 286 | 287 | # Visual Studio LightSwitch build output 288 | **/*.HTMLClient/GeneratedArtifacts 289 | **/*.DesktopClient/GeneratedArtifacts 290 | **/*.DesktopClient/ModelManifest.xml 291 | **/*.Server/GeneratedArtifacts 292 | **/*.Server/ModelManifest.xml 293 | _Pvt_Extensions 294 | 295 | # Paket dependency manager 296 | .paket/paket.exe 297 | paket-files/ 298 | 299 | # FAKE - F# Make 300 | .fake/ 301 | 302 | # CodeRush personal settings 303 | .cr/personal 304 | 305 | # Python Tools for Visual Studio (PTVS) 306 | __pycache__/ 307 | *.pyc 308 | 309 | # Cake - Uncomment if you are using it 310 | # tools/** 311 | # !tools/packages.config 312 | 313 | # Tabs Studio 314 | *.tss 315 | 316 | # Telerik's JustMock configuration file 317 | *.jmconfig 318 | 319 | # BizTalk build output 320 | *.btp.cs 321 | *.btm.cs 322 | *.odx.cs 323 | *.xsd.cs 324 | 325 | # OpenCover UI analysis results 326 | OpenCover/ 327 | 328 | # Azure Stream Analytics local run output 329 | ASALocalRun/ 330 | 331 | # MSBuild Binary and Structured Log 332 | *.binlog 333 | 334 | # NVidia Nsight GPU debugger configuration file 335 | *.nvuser 336 | 337 | # MFractors (Xamarin productivity tool) working folder 338 | .mfractor/ 339 | 340 | # Local History for Visual Studio 341 | .localhistory/ 342 | 343 | # BeatPulse healthcheck temp database 344 | healthchecksdb 345 | 346 | # Backup folder for Package Reference Convert tool in Visual Studio 2017 347 | MigrationBackup/ 348 | 349 | # Ionide (cross platform F# VS Code tools) working folder 350 | .ionide/ 351 | -------------------------------------------------------------------------------- /ActivityPubBotDotNet.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.0.31903.59 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "KristofferStrube.ActivityPubBotDotNet.Server", "Server\KristofferStrube.ActivityPubBotDotNet.Server\KristofferStrube.ActivityPubBotDotNet.Server.csproj", "{A6C9FFC5-5BA4-43CF-8E10-C8A9BB35F1FF}" 7 | EndProject 8 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "KristoffferStrube.ActivityPubBotDotNet.Client", "Client\KristoffferStrube.ActivityPubBotDotNet.Client\KristoffferStrube.ActivityPubBotDotNet.Client.csproj", "{ECB1B4AC-00DB-4560-AA99-F6A81E28E93C}" 9 | EndProject 10 | Global 11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 12 | Debug|Any CPU = Debug|Any CPU 13 | Release|Any CPU = Release|Any CPU 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {A6C9FFC5-5BA4-43CF-8E10-C8A9BB35F1FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 17 | {A6C9FFC5-5BA4-43CF-8E10-C8A9BB35F1FF}.Debug|Any CPU.Build.0 = Debug|Any CPU 18 | {A6C9FFC5-5BA4-43CF-8E10-C8A9BB35F1FF}.Release|Any CPU.ActiveCfg = Release|Any CPU 19 | {A6C9FFC5-5BA4-43CF-8E10-C8A9BB35F1FF}.Release|Any CPU.Build.0 = Release|Any CPU 20 | {ECB1B4AC-00DB-4560-AA99-F6A81E28E93C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 21 | {ECB1B4AC-00DB-4560-AA99-F6A81E28E93C}.Debug|Any CPU.Build.0 = Debug|Any CPU 22 | {ECB1B4AC-00DB-4560-AA99-F6A81E28E93C}.Release|Any CPU.ActiveCfg = Release|Any CPU 23 | {ECB1B4AC-00DB-4560-AA99-F6A81E28E93C}.Release|Any CPU.Build.0 = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {85F35453-A54C-4436-A503-74D84D76BB54} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/App.razor: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | 7 | Not found 8 | 9 |

Sorry, there's nothing at this address.

10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/KristoffferStrube.ActivityPubBotDotNet.Client.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | net7.0 5 | enable 6 | enable 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/MainLayout.razor: -------------------------------------------------------------------------------- 1 | @inherits LayoutComponentBase 2 | 3 |
4 | @Body 5 |
6 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/Pages/Index.razor: -------------------------------------------------------------------------------- 1 | @page "/" 2 | 3 |

Hello, world!

4 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/Program.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.AspNetCore.Components.Web; 2 | using Microsoft.AspNetCore.Components.WebAssembly.Hosting; 3 | using KristoffferStrube.ActivityPubBotDotNet.Client; 4 | 5 | var builder = WebAssemblyHostBuilder.CreateDefault(args); 6 | builder.RootComponents.Add("#app"); 7 | builder.RootComponents.Add("head::after"); 8 | 9 | builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) }); 10 | 11 | await builder.Build().RunAsync(); 12 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "iisSettings": { 3 | "iisExpress": { 4 | "applicationUrl": "http://localhost:54128", 5 | "sslPort": 44337 6 | } 7 | }, 8 | "profiles": { 9 | "http": { 10 | "commandName": "Project", 11 | "dotnetRunMessages": true, 12 | "launchBrowser": true, 13 | "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}", 14 | "applicationUrl": "http://localhost:5175", 15 | "environmentVariables": { 16 | "ASPNETCORE_ENVIRONMENT": "Development" 17 | } 18 | }, 19 | "https": { 20 | "commandName": "Project", 21 | "dotnetRunMessages": true, 22 | "launchBrowser": true, 23 | "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}", 24 | "applicationUrl": "https://localhost:7055;http://localhost:5175", 25 | "environmentVariables": { 26 | "ASPNETCORE_ENVIRONMENT": "Development" 27 | } 28 | }, 29 | "IIS Express": { 30 | "commandName": "IISExpress", 31 | "launchBrowser": true, 32 | "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}", 33 | "environmentVariables": { 34 | "ASPNETCORE_ENVIRONMENT": "Development" 35 | } 36 | } 37 | } 38 | } 39 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/_Imports.razor: -------------------------------------------------------------------------------- 1 | @using System.Net.Http 2 | @using System.Net.Http.Json 3 | @using Microsoft.AspNetCore.Components.Routing 4 | @using Microsoft.AspNetCore.Components.Web 5 | @using Microsoft.AspNetCore.Components.WebAssembly.Http 6 | @using Microsoft.JSInterop 7 | @using KristoffferStrube.ActivityPubBotDotNet.Client 8 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/wwwroot/css/app.css: -------------------------------------------------------------------------------- 1 | h1:focus { 2 | outline: none; 3 | } 4 | 5 | #blazor-error-ui { 6 | background: lightyellow; 7 | bottom: 0; 8 | box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2); 9 | display: none; 10 | left: 0; 11 | padding: 0.6rem 1.25rem 0.7rem 1.25rem; 12 | position: fixed; 13 | width: 100%; 14 | z-index: 1000; 15 | } 16 | 17 | #blazor-error-ui .dismiss { 18 | cursor: pointer; 19 | position: absolute; 20 | right: 0.75rem; 21 | top: 0.5rem; 22 | } 23 | 24 | .blazor-error-boundary { 25 | background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121; 26 | padding: 1rem 1rem 1rem 3.7rem; 27 | color: white; 28 | } 29 | 30 | .blazor-error-boundary::after { 31 | content: "An error has occurred." 32 | } 33 | -------------------------------------------------------------------------------- /Client/KristoffferStrube.ActivityPubBotDotNet.Client/wwwroot/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | KristoffferStrube.ActivityPubBotDotNet.Client 7 | 8 | 9 | 10 | 12 | 13 | 14 | 15 |
Loading...
16 | 17 |
18 | An unhandled error has occurred. 19 | Reload 20 | 🗙 21 |
22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2022 Kristoffer Strube 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](/LICENSE) 2 | [![GitHub issues](https://img.shields.io/github/issues/KristofferStrube/ActivityPubBotDotNet)](https://github.com/KristofferStrube/ActivityPubBotDotNet/issues) 3 | [![GitHub forks](https://img.shields.io/github/forks/KristofferStrube/ActivityPubBotDotNet)](https://github.com/KristofferStrube/ActivityPubBotDotNet/network/members) 4 | [![GitHub stars](https://img.shields.io/github/stars/KristofferStrube/ActivityPubBotDotNet)](https://github.com/KristofferStrube/ActivityPubBotDotNet/stargazers) 5 | 6 | # Introduction 7 | An implementation of a [ActivityPub](https://www.w3.org/TR/activitypub/) bot that can communicate with Mastodon servers. 8 | 9 | Try to say *"AcitivityPub Bot Dot Net"* fast three times. 10 | 11 | It is build using Minimal API and EF Core with SQLite. It uses the [KristofferStrube.ActivityStreams](https://www.nuget.org/packages/KristofferStrube.ActivityStreams) NuGet package for strongly typed classes for parsing the payload of endpoints and to send messages to other servers. 12 | 13 | You can see it in action at [https://kristoffer-strube.dk/API/ActivityPub/Users/bot](https://kristoffer-strube.dk/API/ActivityPub/Users/bot) where the bot serves my blog posts from [kristoffer-strube.dk](https://kristoffer-strube.dk) in its [Outbox](https://www.w3.org/TR/activitypub/#outbox) using the `RSSFeedOutboxService`. 14 | 15 | It is build with inspiration from David Fowler's project [TodoApi](https://github.com/davidfowl/TodoApi). 16 | 17 | # Local Development 18 | ## Setup Database 19 | Setup the dotnet tool *dotnet-ef*. 20 | ```bash 21 | dotnet tool install dotnet-ef -g 22 | ``` 23 | Create the database by running the following script from the `src/KristofferStrube.ActivityPubBotDotNet.Server/` folder. 24 | ```bash 25 | dotnet ef database update 26 | ``` 27 | ## Adding SSH Keys 28 | For the server project you need to add two configuration keys that will contain a RSA key value pair. 29 | These can either be supplied through [User Secrets](https://blog.elmah.io/asp-net-core-not-that-secret-user-secrets-explained/) or by setting the appropriate values in `appsettings.Development.json`. The Keys are: 30 | - `PEM:Public` 31 | - `PEM:Private` 32 | ## Running the Server 33 | Go to the `src/KristofferStrube.ActivityPubBotDotNet.Server/` folder and run. 34 | ```bash 35 | dotnet run 36 | ``` 37 | 38 | # Goals 39 | ## Server Interaction Goals 40 | - [x] [Accept](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-accept) [Follow](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-follow) activities sent to [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person). 41 | - [x] Remove subscription when someone [Undo](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-undo) a [Follow](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-follow) activity. 42 | - [x] Persist [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) information in EF Core. 43 | - [ ] Validate message [signing](https://blog.joinmastodon.org/2018/07/how-to-make-friends-and-verify-requests/). 44 | - [x] Dynamic information of [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person). 45 | - [x] Dynamic WebFinger endpoint. 46 | - [x] Serve [Articles](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-article) of [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) from RSS feed. 47 | - [x] Serve [Notes](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-note) of [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) from administrative tool. 48 | - [ ] Send [Create](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-create) Activity message when a new Article is created. 49 | - [ ] Send [Delete](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-delete) Activity message when [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) information changes. 50 | ## Administration Goals 51 | - [ ] Be able to authenticate the admin somehow. 52 | - [ ] Be able to update a [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) information. 53 | - [ ] Be able to create new [Notes](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-note) 54 | - [ ] Be able to delete a [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person). 55 | ## Client Goals 56 | - [ ] Show [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person) information if someone hits the API and doesn't request valid `content-type`. 57 | - [ ] Show [Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person)'s [Articles](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-article) below Profile information. 58 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/.db/Here the DB will be generated.txt: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/KristofferStrube/ActivityPubBotDotNet/ea17ded6a40a0dfe160ebb68a2261dd325e6662c/Server/KristofferStrube.ActivityPubBotDotNet.Server/.db/Here the DB will be generated.txt -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/ActivityPubDbContext.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.EntityFrameworkCore; 2 | 3 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 4 | 5 | public class ActivityPubDbContext : DbContext 6 | { 7 | public ActivityPubDbContext(DbContextOptions options) : base(options) { } 8 | 9 | public DbSet Users => Set(); 10 | public DbSet FollowRelations => Set(); 11 | 12 | protected override void OnModelCreating(ModelBuilder builder) 13 | { 14 | builder.Entity() 15 | .HasKey(u => u.Id); 16 | 17 | builder.Entity() 18 | .HasKey(f => new { f.FollowerId, f.FollowedId }); 19 | 20 | builder.Entity() 21 | .HasOne(f => f.Follower) 22 | .WithMany(u => u.Followers) 23 | .HasForeignKey(f => f.FollowerId); 24 | 25 | builder.Entity() 26 | .HasOne(f => f.Followed) 27 | .WithMany(u => u.Following) 28 | .HasForeignKey(f => f.FollowedId); 29 | 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/KristofferStrube.ActivityPubBotDotNet.Server.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | net7.0 5 | enable 6 | enable 7 | c22923ae-b25a-4923-95cd-a2c1eb3bcc8e 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Migrations/20221206235626_InitialCreate.Designer.cs: -------------------------------------------------------------------------------- 1 | // 2 | using KristofferStrube.ActivityPubBotDotNet.Server; 3 | using Microsoft.EntityFrameworkCore; 4 | using Microsoft.EntityFrameworkCore.Infrastructure; 5 | using Microsoft.EntityFrameworkCore.Migrations; 6 | using Microsoft.EntityFrameworkCore.Storage.ValueConversion; 7 | 8 | #nullable disable 9 | 10 | namespace KristofferStrube.ActivityPubBotDotNet.Server.Migrations 11 | { 12 | [DbContext(typeof(ActivityPubDbContext))] 13 | [Migration("20221206235626_InitialCreate")] 14 | partial class InitialCreate 15 | { 16 | /// 17 | protected override void BuildTargetModel(ModelBuilder modelBuilder) 18 | { 19 | #pragma warning disable 612, 618 20 | modelBuilder.HasAnnotation("ProductVersion", "7.0.0"); 21 | 22 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.FollowRelation", b => 23 | { 24 | b.Property("FollowerId") 25 | .HasColumnType("TEXT"); 26 | 27 | b.Property("FollowedId") 28 | .HasColumnType("TEXT"); 29 | 30 | b.HasKey("FollowerId", "FollowedId"); 31 | 32 | b.HasIndex("FollowedId"); 33 | 34 | b.ToTable("FollowRelations"); 35 | }); 36 | 37 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", b => 38 | { 39 | b.Property("Id") 40 | .HasColumnType("TEXT"); 41 | 42 | b.Property("Name") 43 | .IsRequired() 44 | .HasColumnType("TEXT"); 45 | 46 | b.HasKey("Id"); 47 | 48 | b.ToTable("Users"); 49 | }); 50 | 51 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.FollowRelation", b => 52 | { 53 | b.HasOne("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", "Followed") 54 | .WithMany("Following") 55 | .HasForeignKey("FollowedId") 56 | .OnDelete(DeleteBehavior.Cascade) 57 | .IsRequired(); 58 | 59 | b.HasOne("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", "Follower") 60 | .WithMany("Followers") 61 | .HasForeignKey("FollowerId") 62 | .OnDelete(DeleteBehavior.Cascade) 63 | .IsRequired(); 64 | 65 | b.Navigation("Followed"); 66 | 67 | b.Navigation("Follower"); 68 | }); 69 | 70 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", b => 71 | { 72 | b.Navigation("Followers"); 73 | 74 | b.Navigation("Following"); 75 | }); 76 | #pragma warning restore 612, 618 77 | } 78 | } 79 | } 80 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Migrations/20221206235626_InitialCreate.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.EntityFrameworkCore.Migrations; 2 | 3 | #nullable disable 4 | 5 | namespace KristofferStrube.ActivityPubBotDotNet.Server.Migrations 6 | { 7 | /// 8 | public partial class InitialCreate : Migration 9 | { 10 | /// 11 | protected override void Up(MigrationBuilder migrationBuilder) 12 | { 13 | migrationBuilder.CreateTable( 14 | name: "Users", 15 | columns: table => new 16 | { 17 | Id = table.Column(type: "TEXT", nullable: false), 18 | Name = table.Column(type: "TEXT", nullable: false) 19 | }, 20 | constraints: table => 21 | { 22 | table.PrimaryKey("PK_Users", x => x.Id); 23 | }); 24 | 25 | migrationBuilder.CreateTable( 26 | name: "FollowRelations", 27 | columns: table => new 28 | { 29 | FollowerId = table.Column(type: "TEXT", nullable: false), 30 | FollowedId = table.Column(type: "TEXT", nullable: false) 31 | }, 32 | constraints: table => 33 | { 34 | table.PrimaryKey("PK_FollowRelations", x => new { x.FollowerId, x.FollowedId }); 35 | table.ForeignKey( 36 | name: "FK_FollowRelations_Users_FollowedId", 37 | column: x => x.FollowedId, 38 | principalTable: "Users", 39 | principalColumn: "Id", 40 | onDelete: ReferentialAction.Cascade); 41 | table.ForeignKey( 42 | name: "FK_FollowRelations_Users_FollowerId", 43 | column: x => x.FollowerId, 44 | principalTable: "Users", 45 | principalColumn: "Id", 46 | onDelete: ReferentialAction.Cascade); 47 | }); 48 | 49 | migrationBuilder.CreateIndex( 50 | name: "IX_FollowRelations_FollowedId", 51 | table: "FollowRelations", 52 | column: "FollowedId"); 53 | } 54 | 55 | /// 56 | protected override void Down(MigrationBuilder migrationBuilder) 57 | { 58 | migrationBuilder.DropTable( 59 | name: "FollowRelations"); 60 | 61 | migrationBuilder.DropTable( 62 | name: "Users"); 63 | } 64 | } 65 | } 66 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Migrations/ActivityPubDbContextModelSnapshot.cs: -------------------------------------------------------------------------------- 1 | // 2 | using KristofferStrube.ActivityPubBotDotNet.Server; 3 | using Microsoft.EntityFrameworkCore; 4 | using Microsoft.EntityFrameworkCore.Infrastructure; 5 | using Microsoft.EntityFrameworkCore.Storage.ValueConversion; 6 | 7 | #nullable disable 8 | 9 | namespace KristofferStrube.ActivityPubBotDotNet.Server.Migrations 10 | { 11 | [DbContext(typeof(ActivityPubDbContext))] 12 | partial class ActivityPubDbContextModelSnapshot : ModelSnapshot 13 | { 14 | protected override void BuildModel(ModelBuilder modelBuilder) 15 | { 16 | #pragma warning disable 612, 618 17 | modelBuilder.HasAnnotation("ProductVersion", "7.0.0"); 18 | 19 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.FollowRelation", b => 20 | { 21 | b.Property("FollowerId") 22 | .HasColumnType("TEXT"); 23 | 24 | b.Property("FollowedId") 25 | .HasColumnType("TEXT"); 26 | 27 | b.HasKey("FollowerId", "FollowedId"); 28 | 29 | b.HasIndex("FollowedId"); 30 | 31 | b.ToTable("FollowRelations"); 32 | }); 33 | 34 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", b => 35 | { 36 | b.Property("Id") 37 | .HasColumnType("TEXT"); 38 | 39 | b.Property("Name") 40 | .IsRequired() 41 | .HasColumnType("TEXT"); 42 | 43 | b.HasKey("Id"); 44 | 45 | b.ToTable("Users"); 46 | }); 47 | 48 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.FollowRelation", b => 49 | { 50 | b.HasOne("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", "Followed") 51 | .WithMany("Following") 52 | .HasForeignKey("FollowedId") 53 | .OnDelete(DeleteBehavior.Cascade) 54 | .IsRequired(); 55 | 56 | b.HasOne("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", "Follower") 57 | .WithMany("Followers") 58 | .HasForeignKey("FollowerId") 59 | .OnDelete(DeleteBehavior.Cascade) 60 | .IsRequired(); 61 | 62 | b.Navigation("Followed"); 63 | 64 | b.Navigation("Follower"); 65 | }); 66 | 67 | modelBuilder.Entity("KristofferStrube.ActivityPubBotDotNet.Server.UserInfo", b => 68 | { 69 | b.Navigation("Followers"); 70 | 71 | b.Navigation("Following"); 72 | }); 73 | #pragma warning restore 612, 618 74 | } 75 | } 76 | } 77 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Program.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityPubBotDotNet.Server; 2 | 3 | WebApplicationBuilder builder = WebApplication.CreateBuilder(args); 4 | 5 | // Add services to the container. 6 | // Add Swagger 7 | builder.Services.AddEndpointsApiExplorer(); 8 | builder.Services.AddSwaggerGen(); 9 | 10 | // Add ActivityPubService 11 | builder.Services.AddHttpClient(); 12 | builder.Services.AddScoped(); 13 | builder.Services.AddScoped(_ => new RSSFeedOutboxService("https://kristoffer-strube.dk/RSS.xml", "bot", builder.Configuration)); 14 | 15 | // Configure the database 16 | string connectionString = builder.Configuration.GetConnectionString("Todos") ?? "Data Source=.db/Todos.db"; 17 | builder.Services.AddSqlite(connectionString); 18 | 19 | WebApplication app = builder.Build(); 20 | 21 | // Configure the HTTP request pipeline. 22 | if (app.Environment.IsDevelopment()) 23 | { 24 | app.UseSwagger(); 25 | app.UseSwaggerUI(); 26 | app.Map("/", () => Results.Redirect("/swagger")); 27 | } 28 | 29 | app.UseHttpsRedirection(); 30 | 31 | app.MapUsers(); 32 | app.MapWebFingers(); 33 | 34 | ActivityPubDbContext dbContext = app.Services.CreateScope().ServiceProvider.GetRequiredService(); 35 | if (!dbContext.Users.Any(u => u.Name == "Bot")) 36 | { 37 | dbContext.Add(new UserInfo("Bot", $"{app.Configuration["HostUrls:Server"]}/Users/bot")); 38 | dbContext.SaveChanges(); 39 | } 40 | 41 | app.Run(); -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://json.schemastore.org/launchsettings.json", 3 | "iisSettings": { 4 | "windowsAuthentication": false, 5 | "anonymousAuthentication": true, 6 | "iisExpress": { 7 | "applicationUrl": "http://localhost:50721", 8 | "sslPort": 44346 9 | } 10 | }, 11 | "profiles": { 12 | "http": { 13 | "commandName": "Project", 14 | "dotnetRunMessages": true, 15 | "launchBrowser": true, 16 | "launchUrl": "swagger", 17 | "applicationUrl": "http://localhost:5030", 18 | "environmentVariables": { 19 | "ASPNETCORE_ENVIRONMENT": "Development" 20 | } 21 | }, 22 | "https": { 23 | "commandName": "Project", 24 | "dotnetRunMessages": true, 25 | "launchBrowser": true, 26 | "launchUrl": "swagger", 27 | "applicationUrl": "https://localhost:7296;http://localhost:5030", 28 | "environmentVariables": { 29 | "ASPNETCORE_ENVIRONMENT": "Development" 30 | } 31 | }, 32 | "IIS Express": { 33 | "commandName": "IISExpress", 34 | "launchBrowser": true, 35 | "launchUrl": "swagger", 36 | "environmentVariables": { 37 | "ASPNETCORE_ENVIRONMENT": "Development" 38 | } 39 | } 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Services/ActivityPubService.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityStreams; 2 | using System.Globalization; 3 | using System.Net.Http.Headers; 4 | using System.Security.Cryptography; 5 | using System.Text; 6 | using static System.Text.Json.JsonSerializer; 7 | 8 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 9 | 10 | public class ActivityPubService 11 | { 12 | private readonly HttpClient httpClient; 13 | private readonly IConfiguration configuration; 14 | 15 | public ActivityPubService(HttpClient httpClient, IConfiguration configuration) 16 | { 17 | this.httpClient = httpClient; 18 | this.configuration = configuration; 19 | httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/activity+json")); 20 | } 21 | 22 | public async Task PostAsync(IObjectOrLink objectOrLink, Uri requestUri) 23 | { 24 | string serializedBody = Serialize(objectOrLink); 25 | 26 | HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestUri) 27 | { 28 | Content = new StringContent(serializedBody, mediaType: new MediaTypeHeaderValue("application/activity+json")) 29 | }; 30 | 31 | // Specify the 'x-ms-date' header as the current UTC timestamp according to the RFC1123 standard 32 | string date = DateTimeOffset.UtcNow.ToString("r", CultureInfo.InvariantCulture); 33 | // Compute a content hash for the 'x-ms-content-sha256' header. 34 | string contentHash = $"SHA-256={ComputeContentHash(serializedBody)}"; 35 | 36 | // Prepare a string to sign. 37 | string stringToSign = $"date: {date}\ndigest: {contentHash}"; 38 | // Compute the signature. 39 | string signature = ComputeSignature(stringToSign); 40 | // Concatenate the string, which will be used in the authorization header. 41 | string authorizationHeader = $"keyId=\"https://kristoffer-strube.dk/API/ActivityPub/Users/bot#main-key\",headers=\"date digest\",signature=\"{signature}\""; 42 | 43 | // Add a Date header. 44 | request.Headers.Add("Date", date); 45 | // Add a Digest header. 46 | request.Headers.Add("Digest", contentHash); 47 | // Add a Signature header. 48 | request.Headers.Add("Signature", authorizationHeader); 49 | // ActivityStreams requires this. 50 | request.Headers.Accept.Add(new("application/ld+json")); 51 | 52 | return await httpClient.SendAsync(request); 53 | } 54 | 55 | public async Task GetInboxUriAsync(IObjectOrLink person) 56 | { 57 | if (person is ILink { Href: Uri href }) 58 | { 59 | HttpResponseMessage response = await httpClient.GetAsync(href); 60 | if (!response.IsSuccessStatusCode) 61 | { 62 | return null; 63 | } 64 | IObjectOrLink? obj = await response.Content.ReadFromJsonAsync(); 65 | if (obj is Person { Inbox.Href: Uri inboxHref }) 66 | { 67 | return inboxHref; 68 | } 69 | } 70 | else if (person is Actor actorObject) 71 | { 72 | return actorObject.Inbox?.Href; 73 | } 74 | return null; 75 | } 76 | 77 | public string? GetPersonId(IObjectOrLink? person) 78 | { 79 | if (person is ILink { Href: Uri href }) 80 | { 81 | return href.ToString(); 82 | } 83 | else if (person is Person) 84 | { 85 | return person.Id; 86 | } 87 | return null; 88 | } 89 | 90 | private string ComputeContentHash(string content) 91 | { 92 | using SHA256 sha256 = SHA256.Create(); 93 | byte[] hashedBytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(content)); 94 | return Convert.ToBase64String(hashedBytes); 95 | } 96 | 97 | private string ComputeSignature(string stringToSign) 98 | { 99 | string privateKey = configuration["PEM:Private"]; 100 | 101 | RSA rsa = RSA.Create(); 102 | rsa.ImportFromPem(privateKey.ToCharArray()); 103 | byte[] bytes = Encoding.ASCII.GetBytes(stringToSign); 104 | byte[] hash = rsa.SignData(bytes, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1); 105 | return Convert.ToBase64String(hash); 106 | } 107 | } 108 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Services/IOutboxService.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityStreams; 2 | 3 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 4 | 5 | public interface IOutboxService 6 | { 7 | bool HasOutboxFor(string userId); 8 | IEnumerable GetOutboxItems(string userId); 9 | } -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Services/RSSFeedOutboxService.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityStreams; 2 | using KristofferStrube.ActivityStreams.JsonLD; 3 | using System.ServiceModel.Syndication; 4 | using System.Xml; 5 | 6 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 7 | 8 | public class RSSFeedOutboxService : IOutboxService 9 | { 10 | private readonly string rssFeedUrl; 11 | private readonly string userId; 12 | private readonly IConfiguration configuration; 13 | 14 | public RSSFeedOutboxService(string rssFeedUrl, string userId, IConfiguration configuration) 15 | { 16 | this.rssFeedUrl = rssFeedUrl; 17 | this.userId = userId; 18 | this.configuration = configuration; 19 | } 20 | 21 | public bool HasOutboxFor(string userId) => this.userId == userId; 22 | 23 | public IEnumerable GetOutboxItems(string userId) 24 | { 25 | XmlReader reader = XmlReader.Create(rssFeedUrl); 26 | SyndicationFeed feed = SyndicationFeed.Load(reader); 27 | reader.Close(); 28 | return feed.Items.Select(item => new Create() 29 | { 30 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}/outbox/{item.Id}/activity", 31 | To = new List { new() { Href = new("https://www.w3.org/ns/activitystreams#Public") } }, 32 | Object = new List 33 | { 34 | new Article() 35 | { 36 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}/outbox/{item.Id}", 37 | Content = new List() { 38 | $""" 39 |

{item.Title.Text}

40 | {item.Summary.Text} 41 | {(item.Content is TextSyndicationContent { } content ? content.Text : string.Empty)} 42 | """ 43 | }, 44 | Published = item.PublishDate.DateTime, 45 | To = new List { new() { Href = new("https://www.w3.org/ns/activitystreams#Public") } }, 46 | AttributedTo = new List() { new Link() { Href = new($"{configuration["HostUrls:Server"]}/Users/{userId}") } } 47 | } 48 | } 49 | }); 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Users/FollowRelation.cs: -------------------------------------------------------------------------------- 1 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 2 | 3 | public record FollowRelation(string FollowerId, string FollowedId) 4 | { 5 | public UserInfo Follower { get; set; } 6 | 7 | public UserInfo Followed { get; set; } 8 | } 9 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Users/UserInfo.cs: -------------------------------------------------------------------------------- 1 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 2 | 3 | public record UserInfo(string Name, string Id) 4 | { 5 | public List Followers { get; set; } 6 | public List Following { get; set; } 7 | } 8 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/Users/UsersApi.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityStreams; 2 | using KristofferStrube.ActivityStreams.JsonLD; 3 | using Microsoft.AspNetCore.Http.HttpResults; 4 | using Microsoft.AspNetCore.Mvc; 5 | using static System.Text.Json.JsonSerializer; 6 | 7 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 8 | 9 | public static class UsersApi 10 | { 11 | public static RouteGroupBuilder MapUsers(this IEndpointRouteBuilder routes) 12 | { 13 | RouteGroupBuilder group = routes.MapGroup("/users"); 14 | group.WithTags("Users"); 15 | 16 | group.MapGet("/{userId}", Index); 17 | group.MapPost("/{userId}/inbox", Inbox); 18 | group.MapGet("/{userId}/outbox", Outbox); 19 | group.MapGet("/{userId}/followers", Followers); 20 | group.MapGet("/{userId}/following", Following); 21 | 22 | return group; 23 | } 24 | 25 | public static Results, Ok> Index(string userId, IConfiguration configuration, ActivityPubDbContext dbContext) 26 | { 27 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 28 | if (user is null) 29 | { 30 | return TypedResults.BadRequest("User could not be found."); 31 | } 32 | 33 | return TypedResults.Ok((IObject)new Person() 34 | { 35 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}", 36 | PreferredUsername = user.Name, 37 | Inbox = new Link() { Href = new Uri($"{configuration["HostUrls:Server"]}/Users/{userId}/inbox") }, 38 | Outbox = new Link() { Href = new Uri($"{configuration["HostUrls:Server"]}/Users/{userId}/outbox") }, 39 | Followers = new Link() { Href = new Uri($"{configuration["HostUrls:Server"]}/Users/{userId}/followers") }, 40 | Following = new Link() { Href = new Uri($"{configuration["HostUrls:Server"]}/Users/{userId}/following") }, 41 | Published = new DateTime(2022, 11, 27), 42 | Icon = new List { 43 | new() { 44 | Url = new Link[] { new() { Href = new("https://kristoffer-strube.dk/bot.png") } }, 45 | MediaType = "image/png", 46 | } 47 | }, 48 | Image = new List { 49 | new() { 50 | Url = new Link[] { new() { Href = new("https://kristoffer-strube.dk/bot_header.PNG") } }, 51 | MediaType = "image/png", 52 | } 53 | }, 54 | Summary = new string[] { "This is a ActivityPub bot written in .NET." }, 55 | ExtensionData = new() 56 | { 57 | { "manuallyApprovesFollowers", SerializeToElement(true) }, 58 | { "discoverable", SerializeToElement(true) }, 59 | { 60 | "publicKey", 61 | SerializeToElement(new 62 | { 63 | id = $"{configuration["HostUrls:Server"]}/Users/{userId}#main-key", 64 | owner = $"{configuration["HostUrls:Server"]}/Users/{userId}", 65 | publicKeyPem = configuration["PEM:Public"] 66 | }) 67 | } 68 | } 69 | }); 70 | } 71 | 72 | public static async Task, Accepted>> Inbox(string userId, [FromBody] IObject obj, IConfiguration configuration, ActivityPubDbContext dbContext, ActivityPubService activityPub) 73 | { 74 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 75 | if (user is null) 76 | { 77 | return TypedResults.BadRequest("User could not be found."); 78 | } 79 | 80 | switch (obj) 81 | { 82 | case Follow follow: 83 | if (follow.Actor is null) 84 | { 85 | return TypedResults.BadRequest("Follow request had no actor."); 86 | } 87 | if (activityPub.GetPersonId(follow.Object?.First()) is not string objectPersonId) 88 | { 89 | return TypedResults.BadRequest("The Object was not a Link or did not have a id."); 90 | } 91 | if (objectPersonId != $"{configuration["HostUrls:Server"]}/Users/{userId}") 92 | { 93 | return TypedResults.BadRequest("The Object Id did not match the address of this inbox."); 94 | } 95 | Uri? inbox = await activityPub.GetInboxUriAsync(follow.Actor.First()); 96 | if (inbox is null) 97 | { 98 | return TypedResults.BadRequest("The User had no inbox specified."); 99 | } 100 | 101 | Accept accept = new Accept() 102 | { 103 | Actor = new List() { new() { Href = new($"{configuration["HostUrls:Server"]}/Users/{userId}") } }, 104 | Id = $"{configuration["HostUrls:Server"]}/Activity/{Guid.NewGuid()}", 105 | Object = new List() { follow } 106 | }; 107 | HttpResponseMessage response = await activityPub.PostAsync(accept, inbox); 108 | 109 | if (!response.IsSuccessStatusCode) 110 | { 111 | return TypedResults.BadRequest("Could not send Accept message."); 112 | } 113 | if (activityPub.GetPersonId(follow.Actor.First()) is not string followerId) 114 | { 115 | return TypedResults.BadRequest("The Actor was not a Link or did not have a id."); 116 | } 117 | 118 | if (dbContext.FollowRelations.Find(followerId, userId) is not null) 119 | { 120 | return TypedResults.Accepted("Accepted as the Actor already followed the Object."); 121 | } 122 | UserInfo dbUser = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}")!; 123 | UserInfo? dbFollower = dbContext.Users.Find(followerId); 124 | if (dbFollower is null) 125 | { 126 | dbFollower = new("Some Follower", followerId); 127 | dbContext.Add(dbFollower); 128 | } 129 | dbContext.Add(new FollowRelation(dbFollower.Id, dbUser.Id)); 130 | dbContext.SaveChanges(); 131 | 132 | return TypedResults.Accepted("Accepted"); 133 | case Undo undo: 134 | switch (undo.Object?.First()) 135 | { 136 | case Follow follow: 137 | if (activityPub.GetPersonId(follow.Actor?.First()) is not string actorId || follow.Object?.First() is not ILink { Href: Uri objectUri }) 138 | { 139 | return TypedResults.BadRequest($"Could not Undo Follow either because the actor was not a Link or did not have an id or because the Object was not a Link."); 140 | } 141 | FollowRelation? followRelation = dbContext.FollowRelations.Find(actorId, objectUri.ToString()); 142 | if (followRelation is null) 143 | { 144 | return TypedResults.BadRequest($"Could not Undo Follow because the Actor was not following the Object."); 145 | } 146 | dbContext.FollowRelations.Remove(followRelation); 147 | dbContext.SaveChanges(); 148 | return TypedResults.Accepted("Accepted"); 149 | default: 150 | return TypedResults.BadRequest(Serialize(undo.Object)); 151 | } 152 | default: 153 | return TypedResults.BadRequest("The Object type was not supported."); 154 | } 155 | } 156 | 157 | public static Results, Ok> Outbox(string userId, IConfiguration configuration, ActivityPubDbContext dbContext, IOutboxService outboxService) 158 | { 159 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 160 | if (user is null) 161 | { 162 | return TypedResults.BadRequest("User could not be found."); 163 | } 164 | 165 | if (!outboxService.HasOutboxFor(userId)) 166 | { 167 | return TypedResults.BadRequest("Did not have data for outbox of User."); 168 | } 169 | 170 | var outBoxItems = outboxService.GetOutboxItems(userId).ToList(); 171 | 172 | IObjectOrLink collection = new OrderedCollection() 173 | { 174 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}/outbox", 175 | Items = outBoxItems, 176 | TotalItems = (uint)outBoxItems.Count() 177 | }; 178 | 179 | return TypedResults.Ok(collection); 180 | } 181 | 182 | public static Results, Ok> Followers(string userId, IConfiguration configuration, ActivityPubDbContext dbContext) 183 | { 184 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 185 | if (user is null) 186 | { 187 | return TypedResults.BadRequest("User could not be found."); 188 | } 189 | 190 | var relations = dbContext.FollowRelations.Where(f => f.FollowedId == $"{configuration["HostUrls:Server"]}/Users/{userId}").ToList(); 191 | 192 | IObjectOrLink collection = new Collection() 193 | { 194 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}/followers", 195 | Items = relations.Select(f => new Link() { Href = new(f.FollowerId) }).ToList(), 196 | TotalItems = (uint)relations.Count() 197 | }; 198 | return TypedResults.Ok(collection); 199 | } 200 | 201 | public static Results, Ok> Following(string userId, IConfiguration configuration, ActivityPubDbContext dbContext) 202 | { 203 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 204 | if (user is null) 205 | { 206 | return TypedResults.BadRequest("User could not be found."); 207 | } 208 | 209 | var relations = dbContext.FollowRelations.Where(f => f.FollowerId == $"{configuration["HostUrls:Server"]}/Users/{userId}").ToList(); 210 | 211 | IObjectOrLink collection = new Collection() 212 | { 213 | Id = $"{configuration["HostUrls:Server"]}/Users/{userId}/following", 214 | Items = relations.Select(f => new Link() { Href = new(f.FollowedId) }).ToList(), 215 | TotalItems = (uint)relations.Count() 216 | }; 217 | return TypedResults.Ok(collection); 218 | } 219 | } 220 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/WebFinger/ResourceLink.cs: -------------------------------------------------------------------------------- 1 | using System.Text.Json.Serialization; 2 | 3 | namespace KristofferStrube.ActivityPubBotDotNet.Server.WebFinger; 4 | 5 | public class ResourceLink 6 | { 7 | [JsonPropertyName("rel")] 8 | public string Rel { get; set; } 9 | 10 | [JsonPropertyName("type")] 11 | public string Type { get; set; } 12 | 13 | [JsonPropertyName("href")] 14 | public Uri Href { get; set; } 15 | 16 | public ResourceLink(string rel, string type, Uri href) 17 | { 18 | Rel = rel; 19 | Type = type; 20 | Href = href; 21 | } 22 | } -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/WebFinger/WebFingerApi.cs: -------------------------------------------------------------------------------- 1 | using KristofferStrube.ActivityPubBotDotNet.Server.WebFinger; 2 | using KristofferStrube.ActivityStreams; 3 | using KristofferStrube.ActivityStreams.JsonLD; 4 | using Microsoft.AspNetCore.Http.HttpResults; 5 | using Microsoft.AspNetCore.Mvc; 6 | using static System.Text.Json.JsonSerializer; 7 | 8 | namespace KristofferStrube.ActivityPubBotDotNet.Server; 9 | 10 | public static class WebFingerApi 11 | { 12 | public static RouteGroupBuilder MapWebFingers(this IEndpointRouteBuilder routes) 13 | { 14 | RouteGroupBuilder group = routes.MapGroup("/webfinger"); 15 | group.WithTags("WebFinger"); 16 | 17 | group.MapGet("/", Index); 18 | 19 | return group; 20 | } 21 | 22 | public static Results, Ok> Index(string resource, IConfiguration configuration, ActivityPubDbContext dbContext) 23 | { 24 | if (!resource.Contains(':')) 25 | { 26 | return TypedResults.BadRequest("Malformed resource querystring missing ':'."); 27 | } 28 | if (!resource.Split(':')[1].Contains('@')) 29 | { 30 | return TypedResults.BadRequest("Malformed resource querystring missing '@'."); 31 | } 32 | 33 | string userId = resource.Split(":")[1].Split("@")[0]; 34 | 35 | UserInfo? user = dbContext.Users.Find($"{configuration["HostUrls:Server"]}/Users/{userId}"); 36 | if (user is null) 37 | { 38 | return TypedResults.BadRequest("User could not be found."); 39 | } 40 | 41 | return TypedResults.Ok(new WebFingerResource(resource) 42 | { 43 | Links = new() { new ResourceLink("self", "application/activity+json", new($"{configuration["HostUrls:Server"]}/Users/{userId}")) } 44 | }); 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/WebFinger/WebFingerResource.cs: -------------------------------------------------------------------------------- 1 | using System.Text.Json.Serialization; 2 | 3 | namespace KristofferStrube.ActivityPubBotDotNet.Server.WebFinger; 4 | 5 | public class WebFingerResource 6 | { 7 | [JsonPropertyName("subject")] 8 | public string Subject { get; set; } 9 | 10 | [JsonPropertyName("links")] 11 | public List Links { get; set; } = new(); 12 | 13 | public WebFingerResource(string subject) 14 | { 15 | Subject = subject; 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/appsettings.Development.json: -------------------------------------------------------------------------------- 1 | { 2 | "HostUrls": { 3 | "Server": "https://localhost:7296", 4 | "Client": "https://localhost:7055" 5 | }, 6 | "PEM": { 7 | "Public": "-----BEGIN PUBLIC KEY-----\n...\n-----END PUBLIC KEY-----\n", 8 | "Private": "-----BEGIN RSA PRIVATE KEY-----\n...\n-----END RSA PRIVATE KEY-----\n" 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /Server/KristofferStrube.ActivityPubBotDotNet.Server/appsettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "HostUrls": { 3 | "Server": "", 4 | "Client": "" 5 | } 6 | } 7 | --------------------------------------------------------------------------------