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