├── .gitignore ├── GitVersionConfig.yaml ├── LICENSE ├── README.md ├── appveyor.yml └── src ├── Seq.App.Telegram.sln └── Seq.App.Telegram ├── MessageFormatter.cs ├── Seq.App.Telegram.csproj ├── TelegramReactor.cs ├── Throttling.cs └── icon.png /.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 | *.suo 8 | *.user 9 | *.userosscache 10 | *.sln.docstates 11 | 12 | # User-specific files (MonoDevelop/Xamarin Studio) 13 | *.userprefs 14 | 15 | # Build results 16 | [Dd]ebug/ 17 | [Dd]ebugPublic/ 18 | [Rr]elease/ 19 | [Rr]eleases/ 20 | x64/ 21 | x86/ 22 | bld/ 23 | [Bb]in/ 24 | [Oo]bj/ 25 | [Ll]og/ 26 | 27 | # Visual Studio 2015 cache/options directory 28 | .vs/ 29 | # Uncomment if you have tasks that create the project's static files in wwwroot 30 | #wwwroot/ 31 | 32 | # MSTest test Results 33 | [Tt]est[Rr]esult*/ 34 | [Bb]uild[Ll]og.* 35 | 36 | # NUNIT 37 | *.VisualState.xml 38 | TestResult.xml 39 | 40 | # Build Results of an ATL Project 41 | [Dd]ebugPS/ 42 | [Rr]eleasePS/ 43 | dlldata.c 44 | 45 | # .NET Core 46 | project.lock.json 47 | project.fragment.lock.json 48 | artifacts/ 49 | **/Properties/launchSettings.json 50 | 51 | *_i.c 52 | *_p.c 53 | *_i.h 54 | *.ilk 55 | *.meta 56 | *.obj 57 | *.pch 58 | *.pdb 59 | *.pgc 60 | *.pgd 61 | *.rsp 62 | *.sbr 63 | *.tlb 64 | *.tli 65 | *.tlh 66 | *.tmp 67 | *.tmp_proj 68 | *.log 69 | *.vspscc 70 | *.vssscc 71 | .builds 72 | *.pidb 73 | *.svclog 74 | *.scc 75 | 76 | # Chutzpah Test files 77 | _Chutzpah* 78 | 79 | # Visual C++ cache files 80 | ipch/ 81 | *.aps 82 | *.ncb 83 | *.opendb 84 | *.opensdf 85 | *.sdf 86 | *.cachefile 87 | *.VC.db 88 | *.VC.VC.opendb 89 | 90 | # Visual Studio profiler 91 | *.psess 92 | *.vsp 93 | *.vspx 94 | *.sap 95 | 96 | # TFS 2012 Local Workspace 97 | $tf/ 98 | 99 | # Guidance Automation Toolkit 100 | *.gpState 101 | 102 | # ReSharper is a .NET coding add-in 103 | _ReSharper*/ 104 | *.[Rr]e[Ss]harper 105 | *.DotSettings.user 106 | 107 | # JustCode is a .NET coding add-in 108 | .JustCode 109 | 110 | # TeamCity is a build add-in 111 | _TeamCity* 112 | 113 | # DotCover is a Code Coverage Tool 114 | *.dotCover 115 | 116 | # Visual Studio code coverage results 117 | *.coverage 118 | *.coveragexml 119 | 120 | # NCrunch 121 | _NCrunch_* 122 | .*crunch*.local.xml 123 | nCrunchTemp_* 124 | 125 | # MightyMoose 126 | *.mm.* 127 | AutoTest.Net/ 128 | 129 | # Web workbench (sass) 130 | .sass-cache/ 131 | 132 | # Installshield output folder 133 | [Ee]xpress/ 134 | 135 | # DocProject is a documentation generator add-in 136 | DocProject/buildhelp/ 137 | DocProject/Help/*.HxT 138 | DocProject/Help/*.HxC 139 | DocProject/Help/*.hhc 140 | DocProject/Help/*.hhk 141 | DocProject/Help/*.hhp 142 | DocProject/Help/Html2 143 | DocProject/Help/html 144 | 145 | # Click-Once directory 146 | publish/ 147 | 148 | # Publish Web Output 149 | *.[Pp]ublish.xml 150 | *.azurePubxml 151 | # TODO: Comment the next line if you want to checkin your web deploy settings 152 | # but database connection strings (with potential passwords) will be unencrypted 153 | *.pubxml 154 | *.publishproj 155 | 156 | # Microsoft Azure Web App publish settings. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Seq.App.Telegram 2 | An app for Seq (http://getseq.net) that forwards messages to Telegram group chat. Socks5 proxy supported. 3 | 4 | [![NuGet](https://img.shields.io/nuget/v/Seq.App.Telegram.svg?style=flat-square)](https://www.nuget.org/packages/Seq.App.Telegram/) 5 | 6 | [![Build status](https://ci.appveyor.com/api/projects/status/slbuim8p6s9adl2g/branch/master?svg=true)](https://ci.appveyor.com/project/stdray/seq-app-telegram/branch/master) 7 | 8 | 9 | ### In order to use Seq.App.Telegram you will need: 10 | * **Seq 2021.4+** Older versions is not supported by current package. 11 | * **Bot authentication token**. You can use existing bot's token or create a new one. Refer to docs at https://core.telegram.org/bots/api#authorizing-your-bot. 12 | * **Chat id**. Invite [@ShowJsonBot](https://telegram.me/ShowJsonBot) or [@RawDataBot](https://telegram.me/RawDataBot) into your chat and it will send you a message. Copy `id` value from `chat` section including leading minus. 13 | `chat` section example: 14 | ```json 15 | "chat": { 16 | "title": "Some chat", 17 | "type": "group", 18 | "all_members_are_administrators": true, 19 | "id": -221908654 20 | }, 21 | ``` 22 | -------------------------------------------------------------------------------- /appveyor.yml: -------------------------------------------------------------------------------- 1 | version: '{build}' 2 | 3 | branches: 4 | only: 5 | - master 6 | 7 | cache: 8 | - C:\ProgramData\chocolatey\bin -> appveyor.yml 9 | - C:\ProgramData\chocolatey\lib -> appveyor.yml 10 | - '%USERPROFILE%\.nuget\packages' 11 | 12 | nuget: 13 | project_feed: true 14 | 15 | install: 16 | - choco install gitversion.portable -pre -y 17 | 18 | before_build: 19 | - cmd: gitversion /l console /output buildserver /updateAssemblyInfo 20 | - ps: Update-AppveyorBuild -Version $GitVersion_NuGetVersion 21 | 22 | after_build: 23 | - cmd: cd src/Seq.App.Telegram 24 | - cmd: dotnet publish -c Release -o ./obj/publish 25 | - cmd: dotnet pack --no-build -c Release -o ./bin/nuget -p:PackageVersion="%GitVersion_NuGetVersion%" 26 | - ps: Get-ChildItem -Recurse *.nupkg | % { Push-AppveyorArtifact $_ -FileName $_.Name } 27 | - ps: Get-ChildItem -Recurse *.nupkg | % { dotnet nuget push -s "https://api.nuget.org/v3/index.json" -k $env:NuGet_Key $_.FullName } 28 | 29 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 15 4 | VisualStudioVersion = 15.0.28307.852 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Seq.App.Telegram", "Seq.App.Telegram\Seq.App.Telegram.csproj", "{D64D284B-74FF-45DA-9687-E75DB08538AC}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {D64D284B-74FF-45DA-9687-E75DB08538AC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {D64D284B-74FF-45DA-9687-E75DB08538AC}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {D64D284B-74FF-45DA-9687-E75DB08538AC}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {D64D284B-74FF-45DA-9687-E75DB08538AC}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {0508E499-8B65-4BB1-970D-E62C53C7C36B} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram/MessageFormatter.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Text.RegularExpressions; 5 | using Seq.Apps; 6 | using Seq.Apps.LogEvents; 7 | using Serilog; 8 | 9 | namespace Seq.App.Telegram 10 | { 11 | public class MessageFormatter 12 | { 13 | static readonly Regex PlaceholdersRegex = new Regex("(\\[(?[^\\[\\]]+?)(\\:(?[^\\[\\]]+?))?\\])", RegexOptions.CultureInvariant | RegexOptions.Compiled); 14 | 15 | static readonly Dictionary EscapeList = new Dictionary 16 | { 17 | { "_", "\\_" }, 18 | { "*", "\\*" }, 19 | { "[", "\\[" }, 20 | { "`", "\\`" } 21 | }; 22 | 23 | public MessageFormatter(ILogger log, string baseUrl, string messageTemplate) 24 | { 25 | Log = log; 26 | MessageTemplate = messageTemplate ?? "[RenderedMessage]"; 27 | BaseUrl = baseUrl; 28 | } 29 | 30 | public ILogger Log { get; } 31 | public string MessageTemplate { get; } 32 | public string BaseUrl { get; } 33 | 34 | public string GenerateMessageText(Event evt) 35 | { 36 | return $"{SubstitutePlaceholders(MessageTemplate, evt)} [link]({BaseUrl}/#/events?filter=@Id%3D%3D'{evt.Id}'&show=expanded)"; 37 | } 38 | 39 | string SubstitutePlaceholders(string messageTemplateToUse, Event evt) 40 | { 41 | var data = evt.Data; 42 | var eventType = evt.EventType; 43 | var level = data.Level; 44 | 45 | var placeholders = data.Properties?.ToDictionary(x => x.Key, x => x.Value, StringComparer.OrdinalIgnoreCase) 46 | ?? new Dictionary(StringComparer.OrdinalIgnoreCase); 47 | 48 | AddValueIfKeyDoesntExist(placeholders, "Level", level); 49 | AddValueIfKeyDoesntExist(placeholders, "EventType", eventType); 50 | AddValueIfKeyDoesntExist(placeholders, "RenderedMessage", data.RenderedMessage); 51 | 52 | return PlaceholdersRegex.Replace(messageTemplateToUse, m => 53 | { 54 | var key = m.Groups["key"].Value.ToLower(); 55 | var format = m.Groups["format"].Value; 56 | return placeholders.ContainsKey(key) ? FormatValue(placeholders[key], format) : m.Value; 57 | }); 58 | } 59 | 60 | string FormatValue(object value, string format) 61 | { 62 | var rawValue = value?.ToString() ?? "(Null)"; 63 | 64 | foreach (var escape in EscapeList) 65 | { 66 | rawValue = rawValue.Replace(escape.Key, escape.Value); 67 | } 68 | 69 | if (string.IsNullOrWhiteSpace(format)) 70 | return rawValue; 71 | try 72 | { 73 | return string.Format(format, rawValue); 74 | } 75 | catch (Exception ex) 76 | { 77 | Log.Error(ex, "Could not format message: {value} {format}", value, format); 78 | } 79 | 80 | return rawValue; 81 | } 82 | 83 | static void AddValueIfKeyDoesntExist(IDictionary placeholders, string key, object value) 84 | { 85 | if (!placeholders.ContainsKey(key)) 86 | placeholders.Add(key, value); 87 | } 88 | } 89 | } 90 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram/Seq.App.Telegram.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | netstandard2.0 5 | Seq.App.Telegram 6 | An app for Seq (http://getseq.net) that forwards messages to Telegram. 7 | STDray 8 | Apache-2.0 9 | icon.png 10 | https://github.com/stdray/Seq.App.Telegram 11 | false 12 | seq-app seq serilog events telegram 13 | true 14 | true 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram/TelegramReactor.cs: -------------------------------------------------------------------------------- 1 | using MihaZupan; 2 | using Seq.Apps; 3 | using Seq.Apps.LogEvents; 4 | using System; 5 | using System.Net.Http; 6 | using System.Threading; 7 | using System.Threading.Tasks; 8 | using Telegram.Bot; 9 | using Telegram.Bot.Types.Enums; 10 | 11 | namespace Seq.App.Telegram 12 | { 13 | [SeqApp("Telegram notifier", Description = "Sends messages matching a view to Telegram.")] 14 | public class TelegramReactor : SeqApp, ISubscribeToAsync 15 | { 16 | [SeqAppSetting( 17 | DisplayName = "Bot authentication token", 18 | HelpText = "Refer to Telegram api documentation https://core.telegram.org/bots/api#authorizing-your-bot")] 19 | public string BotToken { get; set; } 20 | 21 | [SeqAppSetting( 22 | DisplayName = "Group chat identifier", 23 | HelpText = "Unique identifier for your group chat (include minus)")] 24 | public long ChatId { get; set; } 25 | 26 | [SeqAppSetting( 27 | DisplayName = "Seq Base URL", 28 | HelpText = "Used for generating permalinks to events in Telegram messages.", 29 | IsOptional = true)] 30 | public string BaseUrl { get; set; } 31 | 32 | [SeqAppSetting( 33 | HelpText = "The message template to use when writing the message to Telegram. Refer to https://tlgrm.ru/docs/bots/api#formatting-options for Markdown style formatting options. Event property values can be added in the format [PropertyKey]. The default is \"[RenderedMessage]\"", 34 | InputType = SettingInputType.LongText, 35 | IsOptional = true)] 36 | public string MessageTemplate { get; set; } 37 | 38 | [SeqAppSetting( 39 | DisplayName = "Suppression time (minutes)", 40 | IsOptional = true, 41 | HelpText = "Once an event type has been sent to Telegram, the time to wait before sending again. The default is zero.")] 42 | public int SuppressionMinutes { get; set; } = 0; 43 | 44 | [SeqAppSetting(DisplayName = "Socks5 proxy host name", IsOptional = true)] 45 | public string Socks5ProxyHost { get; set; } 46 | 47 | [SeqAppSetting(DisplayName = "Socks5 proxy port", IsOptional = true)] 48 | public int Socks5ProxyPort { get; set; } 49 | 50 | [SeqAppSetting(DisplayName = "Socks5 proxy username", IsOptional = true)] 51 | public string Socks5ProxyUserName { get; set; } 52 | 53 | [SeqAppSetting(DisplayName = "Socks5 proxy password", IsOptional = true, InputType = SettingInputType.Password)] 54 | public string Socks5ProxyPassword { get; set; } 55 | 56 | readonly Lazy _telegram; 57 | 58 | public TelegramReactor() 59 | { 60 | _telegram = new Lazy(CreateTelegramBotClient, LazyThreadSafetyMode.ExecutionAndPublication); 61 | } 62 | 63 | TelegramBotClient CreateTelegramBotClient() 64 | { 65 | if (string.IsNullOrEmpty(Socks5ProxyHost)) 66 | return new TelegramBotClient(BotToken); 67 | var proxy = string.IsNullOrEmpty(Socks5ProxyUserName) 68 | ? new HttpToSocks5Proxy(Socks5ProxyHost, Socks5ProxyPort) 69 | : new HttpToSocks5Proxy(Socks5ProxyHost, Socks5ProxyPort, Socks5ProxyUserName, Socks5ProxyPassword); 70 | return new TelegramBotClient(BotToken, new HttpClient(new HttpClientHandler { Proxy = proxy })); 71 | } 72 | 73 | readonly Throttling _throttling = new Throttling(); 74 | 75 | string GetBaseUri() => (BaseUrl ?? Host.BaseUri).TrimEnd('/'); 76 | 77 | public async Task OnAsync(Event evt) 78 | { 79 | if (!_throttling.TryBegin(evt.EventType, TimeSpan.FromMinutes(SuppressionMinutes))) 80 | return; 81 | var formatter = new MessageFormatter(Log, GetBaseUri(), MessageTemplate); 82 | var message = formatter.GenerateMessageText(evt); 83 | await _telegram.Value.SendTextMessageAsync(ChatId, message, ParseMode.Markdown); 84 | } 85 | } 86 | } 87 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram/Throttling.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | 4 | namespace Seq.App.Telegram 5 | { 6 | public class Throttling 7 | { 8 | readonly ConcurrentDictionary _lastSeen = new ConcurrentDictionary(); 9 | 10 | 11 | public bool TryBegin(T key, TimeSpan period) 12 | { 13 | if (period <= TimeSpan.Zero) 14 | return true; 15 | var res = false; 16 | _lastSeen.AddOrUpdate( 17 | key: key, 18 | addValueFactory: type => 19 | { 20 | res = true; 21 | return DateTime.Now; 22 | }, 23 | updateValueFactory: (type, lastTime) => 24 | { 25 | var now = DateTime.Now; 26 | if (now - lastTime > period) 27 | { 28 | res = true; 29 | return now; 30 | } 31 | return lastTime; 32 | }); 33 | return res; 34 | } 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /src/Seq.App.Telegram/icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/stdray/Seq.App.Telegram/41bb4d57e1db2a410ce1a7a96ba74e89ad192fdd/src/Seq.App.Telegram/icon.png --------------------------------------------------------------------------------