support for rss and atoms feeds added.

src/NadekoBot/Migrations/20170921185313_feeds.cs

@@ -0,0 +1,59 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+using System.Collections.Generic;
+
+namespace NadekoBot.Migrations
+{
+    public partial class feeds : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "FeedSub",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    ChannelId = table.Column<ulong>(type: "INTEGER", nullable: false),
+                    DateAdded = table.Column<DateTime>(type: "TEXT", nullable: true),
+                    GuildConfigId = table.Column<int>(type: "INTEGER", nullable: false),
+                    Url = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_FeedSub", x => x.Id);
+                    table.UniqueConstraint("AK_FeedSub_GuildConfigId_Url", x => new { x.GuildConfigId, x.Url });
+                    table.ForeignKey(
+                        name: "FK_FeedSub_GuildConfigs_GuildConfigId",
+                        column: x => x.GuildConfigId,
+                        principalTable: "GuildConfigs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "FeedSub");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "LastLevelUp",
+                table: "UserXpStats",
+                nullable: false,
+                defaultValue: new DateTime(2017, 9, 15, 5, 48, 8, 665, DateTimeKind.Local),
+                oldClrType: typeof(DateTime),
+                oldType: "TEXT",
+                oldDefaultValue: new DateTime(2017, 9, 21, 20, 53, 13, 307, DateTimeKind.Local));
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "LastLevelUp",
+                table: "DiscordUser",
+                nullable: false,
+                defaultValue: new DateTime(2017, 9, 15, 5, 48, 8, 660, DateTimeKind.Local),
+                oldClrType: typeof(DateTime),
+                oldType: "TEXT",
+                oldDefaultValue: new DateTime(2017, 9, 21, 20, 53, 13, 305, DateTimeKind.Local));
+        }
+    }
+}

src/NadekoBot/Migrations/NadekoSqliteContextModelSnapshot.cs

@@ -1,10 +1,13 @@
-using System;
+// <auto-generated />
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.EntityFrameworkCore.Storage.Internal;
 using NadekoBot.Services.Database;
 using NadekoBot.Services.Database.Models;
+using System;
 
 namespace NadekoBot.Migrations
 {
@@ -13,8 +16,9 @@ namespace NadekoBot.Migrations
     {
         protected override void BuildModel(ModelBuilder modelBuilder)
         {
+#pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "1.1.1");
+                .HasAnnotation("ProductVersion", "2.0.0-rtm-26452");
 
             modelBuilder.Entity("NadekoBot.Services.Database.Models.AntiRaidSetting", b =>
                 {
@@ -466,7 +470,7 @@ namespace NadekoBot.Migrations
 
                     b.Property<DateTime>("LastLevelUp")
                         .ValueGeneratedOnAdd()
-                        .HasDefaultValue(new DateTime(2017, 9, 15, 5, 48, 8, 660, DateTimeKind.Local));
+                        .HasDefaultValue(new DateTime(2017, 9, 21, 20, 53, 13, 305, DateTimeKind.Local));
 
                     b.Property<DateTime>("LastXpGain");
 
@@ -546,6 +550,27 @@ namespace NadekoBot.Migrations
                     b.ToTable("ExcludedItem");
                 });
 
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.FeedSub", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<ulong>("ChannelId");
+
+                    b.Property<DateTime?>("DateAdded");
+
+                    b.Property<int>("GuildConfigId");
+
+                    b.Property<string>("Url")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.HasAlternateKey("GuildConfigId", "Url");
+
+                    b.ToTable("FeedSub");
+                });
+
             modelBuilder.Entity("NadekoBot.Services.Database.Models.FilterChannelId", b =>
                 {
                     b.Property<int>("Id")
@@ -1366,7 +1391,7 @@ namespace NadekoBot.Migrations
 
                     b.Property<DateTime>("LastLevelUp")
                         .ValueGeneratedOnAdd()
-                        .HasDefaultValue(new DateTime(2017, 9, 15, 5, 48, 8, 665, DateTimeKind.Local));
+                        .HasDefaultValue(new DateTime(2017, 9, 21, 20, 53, 13, 307, DateTimeKind.Local));
 
                     b.Property<int>("NotifyOnLevelUp");
 
@@ -1693,6 +1718,14 @@ namespace NadekoBot.Migrations
                         .HasForeignKey("XpSettingsId");
                 });
 
+            modelBuilder.Entity("NadekoBot.Services.Database.Models.FeedSub", b =>
+                {
+                    b.HasOne("NadekoBot.Services.Database.Models.GuildConfig", "GuildConfig")
+                        .WithMany("FeedSubs")
+                        .HasForeignKey("GuildConfigId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
             modelBuilder.Entity("NadekoBot.Services.Database.Models.FilterChannelId", b =>
                 {
                     b.HasOne("NadekoBot.Services.Database.Models.GuildConfig")
@@ -1945,6 +1978,7 @@ namespace NadekoBot.Migrations
                         .HasForeignKey("NadekoBot.Services.Database.Models.XpSettings", "GuildConfigId")
                         .OnDelete(DeleteBehavior.Cascade);
                 });
+#pragma warning restore 612, 618
         }
     }
 }

src/NadekoBot/Modules/Music/Services/MusicService.cs

@@ -222,61 +222,5 @@ namespace NadekoBot.Modules.Music.Services
             if (MusicPlayers.TryRemove(id, out var mp))
                 await mp.Destroy();
         }
-
-
-
-        //public Task<SongInfo> ResolveYoutubeSong(string query, string queuerName)
-        //{
-        //    _log.Info("Getting video");
-        //    //var (link, video) = await GetYoutubeVideo(query);
-
-        //    //if (video == null) // do something with this error
-        //    //{
-        //    //    _log.Info("Could not load any video elements based on the query.");
-        //    //    return null;
-        //    //}
-        //    ////var m = Regex.Match(query, @"\?t=(?<t>\d*)");
-        //    ////int gotoTime = 0;
-        //    ////if (m.Captures.Count > 0)
-        //    ////    int.TryParse(m.Groups["t"].ToString(), out gotoTime);
-
-        //    //_log.Info("Creating song info");
-        //    //var song = new SongInfo
-        //    //{
-        //    //    Title = video.Title.Substring(0, video.Title.Length - 10), // removing trailing "- You Tube"
-        //    //    Provider = "YouTube",
-        //    //    Uri = async () => {
-        //    //        var vid = await GetYoutubeVideo(query);
-        //    //        if (vid.Item2 == null)
-        //    //            throw new HttpRequestException();
-
-        //    //        return await vid.Item2.GetUriAsync();
-        //    //    },
-        //    //    Query = link,
-        //    //    ProviderType = MusicType.YouTube,
-        //    //    QueuerName = queuerName
-        //    //};
-        //    return GetYoutubeVideo(query, queuerName);
-        //}
-
-        //private async Task<SongInfo> GetYoutubeVideo(string query, string queuerName)
-        //{
-
-
-        //    //if (string.IsNullOrWhiteSpace(link))
-        //    //{
-        //    //    _log.Info("No song found.");
-        //    //    return (null, null);
-        //    //}
-        //    //_log.Info("Getting all videos");
-        //    //var allVideos = await Task.Run(async () => { try { return await _yt.GetAllVideosAsync(link).ConfigureAwait(false); } catch { return Enumerable.Empty<YouTubeVideo>(); } }).ConfigureAwait(false);
-        //    //var videos = allVideos.Where(v => v.AdaptiveKind == AdaptiveKind.Audio);
-        //    //var video = videos
-        //    //    .Where(v => v.AudioBitrate < 256)
-        //    //    .OrderByDescending(v => v.AudioBitrate)
-        //    //    .FirstOrDefault();
-
-        //    //return (link, video);
-        //}
     }
 }

src/NadekoBot/Modules/Searches/FeedCommands.cs

@@ -0,0 +1,106 @@
+using Discord;
+using Discord.Commands;
+using Discord.WebSocket;
+using Microsoft.SyndicationFeed.Rss;
+using NadekoBot.Common.Attributes;
+using NadekoBot.Extensions;
+using NadekoBot.Modules.Searches.Services;
+using System;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace NadekoBot.Modules.Searches
+{
+    public partial class Searches
+    {
+        [Group]
+        public class FeedCommands : NadekoSubmodule<FeedsService>
+        {
+            private readonly DiscordSocketClient _client;
+
+            public FeedCommands(DiscordSocketClient client)
+            {
+                _client = client;
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.ManageMessages)]
+            public async Task Feed(string url, [Remainder] ITextChannel channel = null)
+            {
+                var success = Uri.TryCreate(url, UriKind.Absolute, out var uri) &&
+                    (uri.Scheme == Uri.UriSchemeHttp || uri.Scheme == Uri.UriSchemeHttps);
+                if (success)
+                {
+                    channel = channel ?? (ITextChannel)Context.Channel;
+                    using (var xmlReader = XmlReader.Create(url, new XmlReaderSettings() { Async = true }))
+                    {
+                        var reader = new RssFeedReader(xmlReader);
+                        try
+                        {
+                            await reader.Read();
+                        }
+                        catch { success = false; }
+                    }
+
+                    if (success)
+                    {
+                        success = _service.AddFeed(Context.Guild.Id, channel.Id, url);
+                        if (success)
+                        {
+                            await ReplyConfirmLocalized("feed_added").ConfigureAwait(false);
+                            return;
+                        }
+                    }
+                }
+
+                await ReplyErrorLocalized("feed_not_valid").ConfigureAwait(false);
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.ManageMessages)]
+            public async Task FeedRemove(int index)
+            {
+                if (_service.RemoveFeed(Context.Guild.Id, --index))
+                {
+                    await ReplyConfirmLocalized("feed_removed").ConfigureAwait(false);
+                }
+                else
+                    await ReplyErrorLocalized("feed_out_of_range").ConfigureAwait(false);
+            }
+
+            [NadekoCommand, Usage, Description, Aliases]
+            [RequireContext(ContextType.Guild)]
+            [RequireUserPermission(GuildPermission.ManageMessages)]
+            public async Task FeedList()
+            {
+                var feeds = _service.GetFeeds(Context.Guild.Id);
+
+                if (!feeds.Any())
+                {
+                    await Context.Channel.EmbedAsync(new EmbedBuilder()
+                        .WithOkColor()
+                        .WithDescription(GetText("feed_no_feed")))
+                        .ConfigureAwait(false);
+                    return;
+                }
+
+                await Context.Channel.SendPaginatedConfirmAsync(_client, 0, (cur) =>
+                {
+                    var embed = new EmbedBuilder()
+                       .WithOkColor();
+                    var i = 0;
+                    var fs = string.Join("\n", feeds.Skip(cur * 10)
+                        .Take(10)
+                        .Select(x => $"`{(cur * 10) + (++i)}.` <#{x.ChannelId}> {x.Url}"));
+
+                    return embed.WithDescription(fs);
+
+                }, feeds.Count / 10);
+            }
+        }
+    }
+}

src/NadekoBot/Modules/Searches/Services/FeedsService.cs

@@ -0,0 +1,213 @@
+using Discord;
+using Microsoft.SyndicationFeed;
+using Microsoft.SyndicationFeed.Rss;
+using NadekoBot.Extensions;
+using NadekoBot.Services;
+using System;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using System.Xml;
+using System.Collections.Generic;
+using NadekoBot.Services.Database.Models;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Concurrent;
+using Discord.WebSocket;
+
+namespace NadekoBot.Modules.Searches.Services
+{
+    public class FeedsService : INService
+    {
+        private readonly DbService _db;
+        private readonly ConcurrentDictionary<string, HashSet<FeedSub>> _subs;
+        private readonly DiscordSocketClient _client;
+        private readonly ConcurrentDictionary<string, DateTime> _lastPosts = 
+            new ConcurrentDictionary<string, DateTime>();
+
+        public FeedsService(IEnumerable<GuildConfig> gcs, DbService db, DiscordSocketClient client)
+        {
+            _db = db;
+
+            _subs = gcs.SelectMany(x => x.FeedSubs)
+                .GroupBy(x => x.Url)
+                .ToDictionary(x => x.Key, x => x.ToHashSet())
+                .ToConcurrent();
+
+            _client = client;
+
+            foreach (var kvp in _subs)
+            {
+                // to make sure rss feeds don't post right away, but 
+                // only the updates from after the bot has started
+                _lastPosts.AddOrUpdate(kvp.Key, DateTime.UtcNow, (k, old) => DateTime.UtcNow);
+            }
+
+            var _ = Task.Run(TrackFeeds);
+        }
+        
+        public async Task<EmbedBuilder> TrackFeeds()
+        {
+            while (true)
+            {
+                foreach (var kvp in _subs)
+                {
+                    if (kvp.Value.Count == 0)
+                        continue;
+
+                    DateTime lastTime;
+                    if (!_lastPosts.TryGetValue(kvp.Key, out lastTime))
+                        lastTime = _lastPosts.AddOrUpdate(kvp.Key, DateTime.UtcNow, (k, old) => DateTime.UtcNow);
+
+                    var rssUrl = kvp.Key;
+                    try
+                    {
+                        using (var xmlReader = XmlReader.Create(rssUrl, new XmlReaderSettings() { Async = true }))
+                        {
+                            var feedReader = new RssFeedReader(xmlReader);
+
+                            var embed = new EmbedBuilder()
+                                .WithAuthor(kvp.Key)
+                                .WithOkColor();
+
+                            while (await feedReader.Read() && feedReader.ElementType != SyndicationElementType.Item)
+                            {
+                                switch (feedReader.ElementType)
+                                {
+                                    case SyndicationElementType.Link:
+                                        var uri = await feedReader.ReadLink();
+                                        embed.WithAuthor(kvp.Key, url: uri.Uri.AbsoluteUri);
+                                        break;
+                                    case SyndicationElementType.Content:
+                                        var content = await feedReader.ReadContent();
+                                        break;
+                                    case SyndicationElementType.Category:
+                                        break;
+                                    case SyndicationElementType.Image:
+                                        ISyndicationImage image = await feedReader.ReadImage();
+                                        embed.WithThumbnailUrl(image.Url.AbsoluteUri);
+                                        break;
+                                    default:
+                                        break;
+                                }
+                            }
+
+                            ISyndicationItem item = await feedReader.ReadItem();
+                            if (item.Published.UtcDateTime <= lastTime)
+                                continue;
+
+                            var desc = item.Description.StripHTML();
+
+                            lastTime = item.Published.UtcDateTime;
+                            var title = string.IsNullOrWhiteSpace(item.Title) ? "-" : item.Title;
+                            desc = Format.Code(item.Published.ToString()) + Environment.NewLine + desc;
+                            var link = item.Links.FirstOrDefault();
+                            if (link != null)
+                                desc = $"[link]({link.Uri}) " + desc;
+
+                            var img = item.Links.FirstOrDefault(x => x.RelationshipType == "enclosure")?.Uri.AbsoluteUri
+                                ?? Regex.Match(item.Description, @"src=""(?<src>.*?)""").Groups["src"].ToString();
+
+                            if (!string.IsNullOrWhiteSpace(img) && Uri.IsWellFormedUriString(img, UriKind.Absolute))
+                                embed.WithImageUrl(img);
+
+                            embed.AddField(title, desc);
+
+                            //send the created embed to all subscribed channels
+                            var sendTasks = kvp.Value
+                                .Where(x => x.GuildConfig != null)
+                                .Select(x => _client.GetGuild(x.GuildConfig.GuildId)
+                                    ?.GetTextChannel(x.ChannelId))
+                                .Where(x => x != null)
+                                .Select(x => x.EmbedAsync(embed));
+
+                            _lastPosts.AddOrUpdate(kvp.Key, item.Published.UtcDateTime, (k, old) => item.Published.UtcDateTime);
+
+                            await Task.WhenAll(sendTasks).ConfigureAwait(false);
+                        }
+                    }
+                    catch (Exception ex) { Console.WriteLine(ex); }
+                }
+
+                await Task.Delay(10000);
+            }
+        }
+
+        public List<FeedSub> GetFeeds(ulong guildId)
+        {
+            using (var uow = _db.UnitOfWork)
+            {
+                return uow.GuildConfigs.For(guildId, set => set.Include(x => x.FeedSubs))
+                    .FeedSubs
+                    .OrderBy(x => x.Id)
+                    .ToList();
+            }
+        }
+
+        public bool AddFeed(ulong guildId, ulong channelId, string rssFeed)
+        {
+            rssFeed.ThrowIfNull(nameof(rssFeed));
+
+            var fs = new FeedSub()
+            {
+                ChannelId = channelId,
+                Url = rssFeed.Trim().ToLowerInvariant(),
+            };
+
+            using (var uow = _db.UnitOfWork)
+            {
+                var gc = uow.GuildConfigs.For(guildId, set => set.Include(x => x.FeedSubs));
+
+                if (gc.FeedSubs.Contains(fs))
+                {
+                    return false;
+                }
+                else if (gc.FeedSubs.Count >= 10)
+                {
+                    return false;
+                }
+
+                gc.FeedSubs.Add(fs);
+
+                //adding all, in case bot wasn't on this guild when it started
+                foreach (var f in gc.FeedSubs)
+                {
+                    _subs.AddOrUpdate(f.Url, new HashSet<FeedSub>(), (k, old) =>
+                    {
+                        old.Add(f);
+                        return old;
+                    });
+                }
+
+                uow.Complete();
+            }
+
+            return true;
+        }
+
+        public bool RemoveFeed(ulong guildId, int index)
+        {
+            if (index < 0)
+                return false;
+
+            using (var uow = _db.UnitOfWork)
+            {
+                var items = uow.GuildConfigs.For(guildId, set => set.Include(x => x.FeedSubs))
+                    .FeedSubs
+                    .OrderBy(x => x.Id)
+                    .ToList();
+
+                if (items.Count <= index)
+                    return false;
+                var toRemove = items[index];
+                _subs.AddOrUpdate(toRemove.Url, new HashSet<FeedSub>(), (key, old) =>
+                {
+                    old.Remove(toRemove);
+                    return old;
+                });
+                uow._context.Remove(toRemove);
+                uow.Complete();
+            }
+            return true;
+        }
+    }
+}

src/NadekoBot/NadekoBot.csproj

@@ -61,6 +61,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.0.0" />
+    <PackageReference Include="Microsoft.SyndicationFeed.ReaderWriter" Version="1.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
     <PackageReference Include="NLog" Version="5.0.0-beta10" />
     <PackageReference Include="StackExchange.Redis" Version="1.2.6" />

src/NadekoBot/Properties/launchSettings.json

@@ -2,6 +2,10 @@
   "profiles": {
     "NadekoBot": {
       "commandName": "Project"
+    },
+    "Watch": {
+      "executablePath": "C:\\Program Files\\dotnet\\dotnet.exe",
+      "commandLineArgs": "watch run"
     }
   }
 }

src/NadekoBot/Services/Database/Models/FeedSub.cs

@@ -0,0 +1,23 @@
+namespace NadekoBot.Services.Database.Models
+{
+    public class FeedSub : DbEntity
+    {
+        public int GuildConfigId { get; set; }
+        public GuildConfig GuildConfig { get; set; }
+
+        public ulong ChannelId { get; set; }
+        public string Url { get; set; }
+
+        public override int GetHashCode()
+        {
+            return Url.GetHashCode() ^ GuildConfigId.GetHashCode();
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is FeedSub s
+                ? s.Url == Url && s.GuildConfigId == GuildConfigId
+                : false;
+        }
+    }
+}

src/NadekoBot/Services/Database/Models/GuildConfig.cs

@@ -87,6 +87,7 @@ namespace NadekoBot.Services.Database.Models
         public StreamRoleSettings StreamRole { get; set; }
 
         public XpSettings XpSettings { get; set; }
+        public List<FeedSub> FeedSubs { get; set; } = new List<FeedSub>();
 
         //public List<ProtectionIgnoredChannel> ProtectionIgnoredChannels { get; set; } = new List<ProtectionIgnoredChannel>();
     }

src/NadekoBot/Services/Database/NadekoContext.cs

@@ -142,6 +142,9 @@ namespace NadekoBot.Services.Database
                 .HasOne(x => x.GuildConfig)
                 .WithOne(x => x.AntiRaidSetting);
 
+            modelBuilder.Entity<FeedSub>()
+                .HasAlternateKey(x => new { x.GuildConfigId, x.Url });
+
             //modelBuilder.Entity<ProtectionIgnoredChannel>()
             //    .HasAlternateKey(c => new { c.ChannelId, c.ProtectionType });
 
@@ -304,6 +307,7 @@ namespace NadekoBot.Services.Database
                 .WithOne(x => x.XpSettings);
             #endregion
 
+            //todo major bug
             #region XpRoleReward
             modelBuilder.Entity<XpRoleReward>()
                 .HasAlternateKey(x => x.Level);

src/NadekoBot/Services/Database/Repositories/Impl/GuildConfigRepository.cs

@@ -44,6 +44,8 @@ namespace NadekoBot.Services.Database.Repositories.Impl
                 .Include(gc => gc.SlowmodeIgnoredUsers)
                 .Include(gc => gc.AntiSpamSetting)
                     .ThenInclude(x => x.IgnoredChannels)
+                .Include(gc => gc.FeedSubs)
+                    .ThenInclude(x => x.GuildConfig)
                 .Include(gc => gc.FollowedStreams)
                 .Include(gc => gc.StreamRole)
                 .Include(gc => gc.NsfwBlacklistedTags)

src/NadekoBot/Services/Impl/Localization.cs

@@ -20,7 +20,7 @@ namespace NadekoBot.Services.Impl
         public CultureInfo DefaultCultureInfo { get; private set; } = CultureInfo.CurrentCulture;
 
         private static readonly Dictionary<string, CommandData> _commandData;
-
+        
         static Localization()
         {
             _commandData = JsonConvert.DeserializeObject<Dictionary<string, CommandData>>(

src/NadekoBot/_Extensions/StringExtensions.cs

@@ -9,6 +9,11 @@ namespace NadekoBot.Extensions
 {
     public static class StringExtensions
     {
+        public static string StripHTML(this string input)
+        {
+            return Regex.Replace(input, "<.*?>", String.Empty);
+        }
+
         /// <summary>
         /// Easy use of fast, efficient case-insensitive Contains check with StringComparison Member Types 
         /// CurrentCulture, CurrentCultureIgnoreCase, InvariantCulture, InvariantCultureIgnoreCase, Ordinal, OrdinalIgnoreCase

src/NadekoBot/_strings/ResponseStrings.en-US.json

@@ -872,5 +872,10 @@
   "xp_club_admin_remove": "{0} is no longer club admin.",
   "xp_club_admin_error": "Error. You are either not the owner of the club, or that user is not in your club.",
   "nsfw_started": "Started. Reposting every {0}s.",
-  "nsfw_stopped": "Stopped reposting."
+  "nsfw_stopped": "Stopped reposting.",
+  "searches_feed_added": "Feed added.",
+  "searches_feed_not_valid": "Invalid link, or you're already following that feed on this server, or you've reached maximum number of feeds allowed.",
+  "searches_feed_out_of_range": "Index out of range.",
+  "searches_feed_removed": "Feed removed.",
+  "searches_feed_no_feed": "You haven't subscribed to any feeds on this server."
 }

src/NadekoBot/data/command_strings.json

@@ -2965,5 +2965,26 @@
     "Usage": [
       "{0}8ball"
     ]
+  },
+  "feed": {
+    "cmd": "feed feedadd",
+    "desc": "Subscribes to a feed. Bot will post an update up to once every 10 seconds. You can have up to 10 feeds on one server. All feeds must have unique URLs.",
+    "usage": [
+      "{0}feed https://www.rt.com/rss/"
+    ]
+  },
+  "feedremove": {
+    "cmd": "feedremove feedrm feeddel",
+    "desc": "Stops tracking a feed on the given index. Use `{0}feeds` command to see a list of feeds and their indexes.",
+    "usage": [
+      "{0}feedremove 3"
+    ]
+  },
+  "feedlist": {
+    "cmd": "feeds feedlist",
+    "desc": "Shows the list of feeds you've subscribed to on this server.",
+    "usage": [
+      "{0}feeds"
+    ]
   }
 }