RikoBot-Sharp/Commands.cs

312 lines
12 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using CodeHollow.FeedReader;
using NLog;
using Telegram.Bot.Exceptions;
using Telegram.Bot.Types;
using Telegram.Bot.Types.Enums;
namespace RSSBot {
public static class Commands {
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
public static async void Welcome(Message message, GroupCollection matches) {
await Bot.BotClient.SendTextMessageAsync(
message.Chat,
"<b>Willkommen beim RSS-Bot!</b>\nSende /help, um zu starten.",
ParseMode.Html
);
}
public static async void Help(Message message, GroupCollection matches) {
await Bot.BotClient.SendTextMessageAsync(
message.Chat,
"<b>/rss</b> <i>[Chat]</i>: Abonnierte Feeds anzeigen\n" +
"<b>/sub</b> <i>Feed-URL</i> <i>[Chat]</i>: Feed abonnieren\n" +
"<b>/del</b> <i>Feed-URL</i> <i>[Chat]</i>: Feed löschen\n" +
"<b>/show</b> <i>Feed-URL</i> <i>[Chat]</i>: Feeds auf dieser Seite anzeigen\n" +
"<i>[Chat]</i> ist ein optionales Argument mit dem @Kanalnamen.",
ParseMode.Html
);
}
public static async void Subscribe(Message message, GroupCollection args) {
string url = args[1].Value;
long chatId = message.Chat.Id;
RssBotFeed feed = new RssBotFeed(url);
await Bot.BotClient.SendChatActionAsync(message.Chat, ChatAction.Typing);
if (args.Count > 2) {
Chat chatInfo;
string chatName = args[2].Value;
bool isId = long.TryParse(chatName, out chatId);
if (isId)
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
else
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
chatId = chatInfo.Id;
if (!await Utils.IsBotAdmin(chatId)) {
await Bot.BotClient.SendTextMessageAsync(message.Chat,
"❌ Du musst den Bot als Administrator zu diesem Kanal hinzufügen.");
return;
}
}
try {
await feed.Check();
} catch {
await Bot.BotClient.SendTextMessageAsync(
message.Chat,
"❌ Kein gültiger RSS-Feed."
);
return;
}
// Check if we already have the feed
RssBotFeed existingFeed = Bot.RssBotFeeds
.FirstOrDefault(x => x.Url.ToLower().Equals(feed.Url.ToLower()));
if (existingFeed == null)
Bot.RssBotFeeds.Add(feed);
else
feed = existingFeed;
// Check if chat already subscribed
if (feed.Subs.Contains(chatId)) {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "✅ Dieser Feed wurde bereits abonniert.");
} else {
feed.Subs.Add(chatId);
await Bot.BotClient.SendTextMessageAsync(message.Chat, "✅ Feed abonniert!");
Bot.Save();
}
}
public static async void Unsubscribe(Message message, GroupCollection args) {
string url = args[1].Value;
long chatId = message.Chat.Id;
RssBotFeed feed = Bot.RssBotFeeds
.FirstOrDefault(x => x.Url.ToLower().Equals(url.ToLower()));
if (args.Count > 2) {
Chat chatInfo;
string chatName = args[2].Value;
bool isId = long.TryParse(chatName, out chatId);
if (isId)
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
else
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
chatId = chatInfo.Id;
if (!await Utils.IsBotAdmin(chatId)) {
await Bot.BotClient.SendTextMessageAsync(message.Chat,
"❌ Du musst den Bot als Administrator zu diesem Kanal hinzufügen.");
return;
}
}
if (feed == null || !feed.Subs.Contains(chatId)) {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Feed wurde nicht abonniert.");
return;
}
feed.Cleanup(chatId);
if (feed.Subs.Count == 0) Bot.RssBotFeeds.Remove(feed);
await Bot.BotClient.SendTextMessageAsync(message.Chat, "✅ Feed deabonniert!");
Bot.Save();
}
public static async void Show(Message message, GroupCollection args) {
long chatId = message.Chat.Id;
string chatTitle = message.Chat.Type.Equals(ChatType.Private) ? message.Chat.FirstName : message.Chat.Title;
await Bot.BotClient.SendChatActionAsync(message.Chat, ChatAction.Typing);
if (args.Count > 1) {
Chat chatInfo;
string chatName = args[1].Value;
bool isId = long.TryParse(chatName, out chatId);
if (isId)
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
else
try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return;
}
chatId = chatInfo.Id;
chatTitle = chatInfo.Title;
if (!await Utils.IsBotAdmin(chatId)) {
await Bot.BotClient.SendTextMessageAsync(message.Chat,
"❌ Du musst den Bot als Administrator zu diesem Kanal hinzufügen.");
return;
}
}
List<RssBotFeed> feeds = Bot.RssBotFeeds.Where(x => x.Subs.Contains(chatId)).ToList();
StringBuilder text = new StringBuilder();
if (feeds.Count < 1) {
text.Append("❌ Keine Feeds abonniert.");
} else {
text.Append($"<strong>{HttpUtility.HtmlEncode(chatTitle)}</strong> hat abonniert:\n");
for (int i = 0; i < feeds.Count; i++) text.Append($"<strong>{i + 1}</strong>) {feeds[i].Url}\n");
}
await Bot.BotClient.SendTextMessageAsync(message.Chat, text.ToString(), ParseMode.Html, true);
}
public static async void Sync() {
Logger.Info("================================");
bool hadEntries = false;
foreach (RssBotFeed feed in Bot.RssBotFeeds.ToList()) {
Logger.Info(feed.Url);
try {
await feed.Check();
} catch (Exception e) {
Logger.Warn($"FEHLER: {e.Message}");
continue;
}
if (feed.NewEntries.Count == 0) {
Logger.Info("Keine neuen Beiträge.");
continue;
}
hadEntries = true;
Logger.Info(feed.NewEntries.Count == 1
? "1 neuer Beitrag"
: $"{feed.NewEntries.Count} neue Beiträge");
foreach (FeedItem entry in feed.NewEntries) {
string postTitle = "Kein Titel";
if (!string.IsNullOrWhiteSpace(entry.Title)) postTitle = Utils.StripHtml(entry.Title);
string postLink = feed.MainLink;
string linkName = postLink;
if (!string.IsNullOrWhiteSpace(entry.Link)) {
postLink = entry.Link;
// FeedProxy URLs
GroupCollection feedProxy =
Utils.ReturnMatches(postLink, "^https?://feedproxy.google.com/~r/(.+?)/.*");
linkName = feedProxy.Count > 1 ? feedProxy[1].Value : new Uri(postLink).Host;
}
// Remove "www."
int index = linkName.IndexOf("www.", StringComparison.Ordinal);
if (index > -1) linkName = linkName.Remove(index, 4);
string content = "";
if (!string.IsNullOrWhiteSpace(entry.Content))
content = Utils.ProcessContent(entry.Content);
else if (!string.IsNullOrWhiteSpace(entry.Description))
content = Utils.ProcessContent(entry.Description);
string text = $"<b>{postTitle}</b>\n<i>{feed.Title}</i>\n{content}";
text += $"\n<a href=\"{postLink}\">Weiterlesen auf {linkName}</a>";
// Send
foreach (long chatId in feed.Subs.ToList())
{
await SendFinishedMessage(chatId, text, feed);
}
}
}
Logger.Info("Nächster Check in 60 Sekunden");
if (hadEntries) Bot.Save();
Bot.JobQueue.Change(TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(-1));
}
private static async Task SendFinishedMessage(long chatId, string text, RssBotFeed feed, int waitTime = 10)
{
try
{
await Bot.BotClient.SendTextMessageAsync(chatId, text, ParseMode.Html, true, true);
Thread.Sleep(1000);
} catch (ApiRequestException e)
{
if (e.ErrorCode.Equals(403))
{
Logger.Warn(e.Message);
feed.Cleanup(chatId);
if (feed.Subs.Count == 0) // was last subscriber
Bot.RssBotFeeds.Remove(feed);
} else
{
Logger.Error($"{e.ErrorCode}: {e.Message}");
}
} catch (HttpRequestException e) // likely 429
{
Logger.Warn($"Got rate limited, waiting {waitTime} seconds...");
Thread.Sleep(waitTime * 1000);
await SendFinishedMessage(chatId, text, feed, (waitTime * 2));
}
}
public static async void ShowAvailableFeeds(Message message, GroupCollection args) {
string url = args[1].Value;
IEnumerable<HtmlFeedLink> feeds;
try {
feeds = await FeedReader.GetFeedUrlsFromUrlAsync(url);
} catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Sete konnte nicht erreicht werden.");
return;
}
List<HtmlFeedLink> htmlFeedLinks = feeds.ToList();
if (htmlFeedLinks.Count == 0) {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Keine Feeds gefunden.");
return;
}
string text = htmlFeedLinks.Aggregate("Feeds gefunden:\n",
(current, feedLink) =>
current + $"* <a href=\"{feedLink.Url}\">{Utils.StripHtml(feedLink.Title)}</a>\n");
await Bot.BotClient.SendTextMessageAsync(message.Chat, text, ParseMode.Html, true);
}
}
}