107 lines
3.4 KiB
C#
107 lines
3.4 KiB
C#
using System.Linq;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using System.Web;
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using Telegram.Bot.Types;
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using Telegram.Bot.Types.Enums;
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namespace RSSBot {
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public static class Utils {
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private static readonly Regex RegexHtml = new Regex("<.*?>");
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public static string StripHtml(string input)
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{
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return RegexHtml.Replace(input, string.Empty).Trim();
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}
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public static string EscapeHtml(string input)
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{
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input = input.Replace("<", "<");
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input = input.Replace(">", ">");
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return input;
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}
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private static string CleanRss(string input)
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{
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string[] replacements = {
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"[←]",
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"[…]",
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"[...]",
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"[bilder]",
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"[boerse]",
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"[mehr]",
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"[video]",
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"...[more]",
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"[more]",
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"[liveticker]",
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"[livestream]",
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"[multimedia]",
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"[sportschau]",
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"[phoenix]",
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"[swr]",
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"[ndr]",
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"[mdr]",
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"[rbb]",
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"[wdr]",
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"[hr]",
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"[br]",
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"Click for full.",
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"Read more »",
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"Read more",
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"...Read More",
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"...mehr lesen",
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"mehr lesen",
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"(more…)",
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"View On WordPress",
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"Continue reading →",
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"» weiterlesen",
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"Ein Kommentar.",
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"Änderungen zeigen",
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"(Feed generated with FetchRSS)",
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"(RSS generated with FetchRss)",
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"-- Delivered by Feed43 service",
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"Meldung bei www.tagesschau.de lesen"
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};
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string[] regexReplacements = {
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"Der Beitrag.*erschien zuerst auf .+.",
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"The post.*appeared first on .+.",
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"http://www.serienjunkies.de/.*.html",
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"Nächstältere Version.*",
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"Die Seite wurde neu angelegt.*",
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"Weiterleitung nach.*erstellt.*"
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};
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input = input.Replace("\n", " ");
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input = replacements.Aggregate(input, (current, replacement) => current.Replace(replacement, ""));
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input = regexReplacements.Aggregate(input,
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(current, replacement) => Regex.Replace(current, replacement, ""));
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return input;
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}
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public static string ProcessContent(string input)
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{
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string content = StripHtml(HttpUtility.HtmlDecode(input));
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content = CleanRss(content);
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if (content.Length > 250) {
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content = content.Substring(0, 250) + "...";
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}
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return content;
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}
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public static GroupCollection ReturnMatches(string text, string pattern)
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{
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return Regex.Match(text,
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pattern,
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RegexOptions.IgnoreCase
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).Groups;
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}
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public static async Task<bool> IsBotAdmin(long chatId)
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{
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ChatMember chatMember = await Bot.BotClient.GetChatMemberAsync(chatId, Bot.BotClient.BotId);
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return chatMember.Status.Equals(ChatMemberStatus.Administrator);
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}
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}
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}
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