Akamaru/RikoBot-Sharp
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Merge remote-tracking branch 'upstream/master'

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Akamaru 2020-12-21 16:21:49 +01:00
commit 77f6928c9e
6 changed files with 145 additions and 77 deletions
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46
Bot.cs
View File

@ -19,7 +19,8 @@ namespace RSSBot {
private static readonly Logger Logger = LogManager.GetCurrentClassLogger(); private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
private static HashSet<RegexHandler> Handlers; private static HashSet<RegexHandler> Handlers;
private static void Main(string[] args) { private static void Main(string[] args)
{
Configuration.Parse(); Configuration.Parse();
BotClient = new TelegramBotClient(Configuration.BotToken); BotClient = new TelegramBotClient(Configuration.BotToken);
try { try {
@ -77,12 +78,15 @@ namespace RSSBot {
Save(); Save();
} }
private static void ReadAllFeeds() { private static void ReadAllFeeds()
{
RedisValue[] allFeedUrls = Configuration.Database.SetMembers($"{Configuration.RedisHash}:feeds"); RedisValue[] allFeedUrls = Configuration.Database.SetMembers($"{Configuration.RedisHash}:feeds");
foreach (RedisValue feedUrl in allFeedUrls) { foreach (RedisValue feedUrl in allFeedUrls) {
HashSet<long> subs = new HashSet<long>(); HashSet<long> subs = new HashSet<long>();
RedisValue[] allSubs = Configuration.Database.SetMembers($"{Configuration.RedisHash}:{feedUrl}:subs"); RedisValue[] allSubs = Configuration.Database.SetMembers($"{Configuration.RedisHash}:{feedUrl}:subs");
foreach (RedisValue sub in allSubs) subs.Add(Convert.ToInt64(sub)); foreach (RedisValue sub in allSubs) {
subs.Add(Convert.ToInt64(sub));
}
string lastEntry = Configuration.Database.HashGet($"{Configuration.RedisHash}:{feedUrl}", "last_entry"); string lastEntry = Configuration.Database.HashGet($"{Configuration.RedisHash}:{feedUrl}", "last_entry");
@ -91,29 +95,43 @@ namespace RSSBot {
} }
} }
private static void OnProcessExit(object? sender, EventArgs e) { private static void OnProcessExit(object? sender, EventArgs e)
{
Save(); Save();
} }
private static void Bot_OnMessage(object? sender, MessageEventArgs messageEventArgs) { private static void Bot_OnMessage(object? sender, MessageEventArgs messageEventArgs)
{
Message message = messageEventArgs.Message; Message message = messageEventArgs.Message;
if (message == null || message.Type != MessageType.Text) return; if (message == null || message.Type != MessageType.Text) {
if (!Configuration.Admins.Contains(message.From.Id)) return; return;
foreach (RegexHandler handler in Handlers.Where(handler => handler.HandleUpdate(message)))
handler.ProcessUpdate(message);
} }
public static async void Save() { if (!Configuration.Admins.Contains(message.From.Id)) {
if (RssBotFeeds.Count > 0) return;
}
foreach (RegexHandler handler in Handlers.Where(handler => handler.HandleUpdate(message))) {
handler.ProcessUpdate(message);
}
}
public static async void Save()
{
if (RssBotFeeds.Count > 0) {
/* Logger.Info("Speichere Daten..."); */ /* Logger.Info("Speichere Daten..."); */
}
foreach (RssBotFeed feed in RssBotFeeds) { foreach (RssBotFeed feed in RssBotFeeds) {
string feedKey = $"{Configuration.RedisHash}:{feed.Url}"; string feedKey = $"{Configuration.RedisHash}:{feed.Url}";
if (string.IsNullOrWhiteSpace(feed.LastEntry)) continue; if (string.IsNullOrWhiteSpace(feed.LastEntry)) {
continue;
}
await Configuration.Database.HashSetAsync(feedKey, "last_entry", feed.LastEntry); await Configuration.Database.HashSetAsync(feedKey, "last_entry", feed.LastEntry);
foreach (long chatId in feed.Subs) await Configuration.Database.SetAddAsync($"{feedKey}:subs", chatId); foreach (long chatId in feed.Subs) {
await Configuration.Database.SetAddAsync($"{feedKey}:subs", chatId);
}
await Configuration.Database.SetAddAsync($"{Configuration.RedisHash}:feeds", feed.Url); await Configuration.Database.SetAddAsync($"{Configuration.RedisHash}:feeds", feed.Url);
} }

90
Commands.cs
View File

@ -17,7 +17,8 @@ namespace RSSBot {
public static class Commands { public static class Commands {
private static readonly Logger Logger = LogManager.GetCurrentClassLogger(); private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
public static async void Welcome(Message message, GroupCollection matches) { public static async void Welcome(Message message, GroupCollection matches)
{
await Bot.BotClient.SendTextMessageAsync( await Bot.BotClient.SendTextMessageAsync(
message.Chat, message.Chat,
"<b>Willkommen bei RikoBot!</b>\nSende /help, um zu starten.", "<b>Willkommen bei RikoBot!</b>\nSende /help, um zu starten.",
@ -25,7 +26,8 @@ namespace RSSBot {
); );
} }
public static async void Help(Message message, GroupCollection matches) { public static async void Help(Message message, GroupCollection matches)
{
await Bot.BotClient.SendTextMessageAsync( await Bot.BotClient.SendTextMessageAsync(
message.Chat, message.Chat,
"<b>/rss</b> <i>[Chat]</i>: Abonnierte Feeds anzeigen\n" + "<b>/rss</b> <i>[Chat]</i>: Abonnierte Feeds anzeigen\n" +
@ -37,7 +39,8 @@ namespace RSSBot {
); );
} }
public static async void Subscribe(Message message, GroupCollection args) { public static async void Subscribe(Message message, GroupCollection args)
{
string url = args[1].Value; string url = args[1].Value;
long chatId = message.Chat.Id; long chatId = message.Chat.Id;
RssBotFeed feed = new RssBotFeed(url); RssBotFeed feed = new RssBotFeed(url);
@ -49,20 +52,21 @@ namespace RSSBot {
string chatName = args[2].Value; string chatName = args[2].Value;
bool isId = long.TryParse(chatName, out chatId); bool isId = long.TryParse(chatName, out chatId);
if (isId) if (isId) {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId); chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
else } else {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName); chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
}
chatId = chatInfo.Id; chatId = chatInfo.Id;
@ -86,10 +90,11 @@ namespace RSSBot {
// Check if we already have the feed // Check if we already have the feed
RssBotFeed existingFeed = Bot.RssBotFeeds RssBotFeed existingFeed = Bot.RssBotFeeds
.FirstOrDefault(x => x.Url.ToLower().Equals(feed.Url.ToLower())); .FirstOrDefault(x => x.Url.ToLower().Equals(feed.Url.ToLower()));
if (existingFeed == null) if (existingFeed == null) {
Bot.RssBotFeeds.Add(feed); Bot.RssBotFeeds.Add(feed);
else } else {
feed = existingFeed; feed = existingFeed;
}
// Check if chat already subscribed // Check if chat already subscribed
if (feed.Subs.Contains(chatId)) { if (feed.Subs.Contains(chatId)) {
@ -101,7 +106,8 @@ namespace RSSBot {
} }
} }
public static async void Unsubscribe(Message message, GroupCollection args) { public static async void Unsubscribe(Message message, GroupCollection args)
{
string url = args[1].Value; string url = args[1].Value;
long chatId = message.Chat.Id; long chatId = message.Chat.Id;
RssBotFeed feed = Bot.RssBotFeeds RssBotFeed feed = Bot.RssBotFeeds
@ -112,20 +118,21 @@ namespace RSSBot {
string chatName = args[2].Value; string chatName = args[2].Value;
bool isId = long.TryParse(chatName, out chatId); bool isId = long.TryParse(chatName, out chatId);
if (isId) if (isId) {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId); chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
else } else {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName); chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
}
chatId = chatInfo.Id; chatId = chatInfo.Id;
@ -142,13 +149,16 @@ namespace RSSBot {
} }
feed.Cleanup(chatId); feed.Cleanup(chatId);
if (feed.Subs.Count == 0) Bot.RssBotFeeds.Remove(feed); if (feed.Subs.Count == 0) {
Bot.RssBotFeeds.Remove(feed);
}
await Bot.BotClient.SendTextMessageAsync(message.Chat, "✅ Feed deabonniert!"); await Bot.BotClient.SendTextMessageAsync(message.Chat, "✅ Feed deabonniert!");
Bot.Save(); Bot.Save();
} }
public static async void Show(Message message, GroupCollection args) { public static async void Show(Message message, GroupCollection args)
{
long chatId = message.Chat.Id; long chatId = message.Chat.Id;
string chatTitle = message.Chat.Type.Equals(ChatType.Private) ? message.Chat.FirstName : message.Chat.Title; string chatTitle = message.Chat.Type.Equals(ChatType.Private) ? message.Chat.FirstName : message.Chat.Title;
await Bot.BotClient.SendChatActionAsync(message.Chat, ChatAction.Typing); await Bot.BotClient.SendChatActionAsync(message.Chat, ChatAction.Typing);
@ -158,20 +168,21 @@ namespace RSSBot {
string chatName = args[1].Value; string chatName = args[1].Value;
bool isId = long.TryParse(chatName, out chatId); bool isId = long.TryParse(chatName, out chatId);
if (isId) if (isId) {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatId); chatInfo = await Bot.BotClient.GetChatAsync(chatId);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
else } else {
try { try {
chatInfo = await Bot.BotClient.GetChatAsync(chatName); chatInfo = await Bot.BotClient.GetChatAsync(chatName);
} catch { } catch {
await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht."); await Bot.BotClient.SendTextMessageAsync(message.Chat, "❌ Dieser Kanal existiert nicht.");
return; return;
} }
}
chatId = chatInfo.Id; chatId = chatInfo.Id;
chatTitle = chatInfo.Title; chatTitle = chatInfo.Title;
@ -190,13 +201,16 @@ namespace RSSBot {
text.Append("❌ Keine Feeds abonniert."); text.Append("❌ Keine Feeds abonniert.");
} else { } else {
text.Append($"<strong>{HttpUtility.HtmlEncode(chatTitle)}</strong> hat abonniert:\n"); text.Append($"<strong>{HttpUtility.HtmlEncode(chatTitle)}</strong> hat abonniert:\n");
for (int i = 0; i < feeds.Count; i++) text.Append($"<strong>{i + 1}</strong>) {feeds[i].Url}\n"); for (int i = 0; i < feeds.Count; i++) {
text.Append($"<strong>{i + 1}</strong>) {feeds[i].Url}\n");
}
} }
await Bot.BotClient.SendTextMessageAsync(message.Chat, text.ToString(), ParseMode.Html, true); await Bot.BotClient.SendTextMessageAsync(message.Chat, text.ToString(), ParseMode.Html, true);
} }
public static async void Sync() { public static async void Sync()
{
Logger.Info("================================"); Logger.Info("================================");
bool hadEntries = false; bool hadEntries = false;
foreach (RssBotFeed feed in Bot.RssBotFeeds.ToList()) { foreach (RssBotFeed feed in Bot.RssBotFeeds.ToList()) {
@ -220,7 +234,10 @@ namespace RSSBot {
foreach (FeedItem entry in feed.NewEntries) { foreach (FeedItem entry in feed.NewEntries) {
string postTitle = "Kein Titel"; string postTitle = "Kein Titel";
if (!string.IsNullOrWhiteSpace(entry.Title)) postTitle = Utils.StripHtml(entry.Title); if (!string.IsNullOrWhiteSpace(entry.Title)) {
postTitle = Utils.StripHtml(entry.Title);
postTitle = Utils.EscapeHtml(postTitle);
}
string postLink = feed.MainLink; string postLink = feed.MainLink;
string linkName = postLink; string linkName = postLink;
@ -234,20 +251,22 @@ namespace RSSBot {
// Remove "www." // Remove "www."
int index = linkName.IndexOf("www.", StringComparison.Ordinal); int index = linkName.IndexOf("www.", StringComparison.Ordinal);
if (index > -1) linkName = linkName.Remove(index, 4); if (index > -1) {
linkName = linkName.Remove(index, 4);
}
string content = ""; string content = "";
if (!string.IsNullOrWhiteSpace(entry.Content)) if (!string.IsNullOrWhiteSpace(entry.Content)) {
content = Utils.ProcessContent(entry.Content); content = Utils.ProcessContent(entry.Content);
else if (!string.IsNullOrWhiteSpace(entry.Description)) } else if (!string.IsNullOrWhiteSpace(entry.Description)) {
content = Utils.ProcessContent(entry.Description); content = Utils.ProcessContent(entry.Description);
}
string text = $"<b>[#RSS] {postTitle}</b>\n{content}"; string text = $"<b>[#RSS] {postTitle}</b>\n{content}";
text += $"\n<a href=\"{postLink}\">Auf {linkName} ansehen.</a>"; text += $"\n<a href=\"{postLink}\">Auf {linkName} ansehen.</a>";
// Send // Send
foreach (long chatId in feed.Subs.ToList()) foreach (long chatId in feed.Subs.ToList()) {
{
await SendFinishedMessage(chatId, text, feed); await SendFinishedMessage(chatId, text, feed);
} }
} }
@ -255,38 +274,39 @@ namespace RSSBot {
/* Logger.Info("Nächster Check in 60 Sekunden"); */ /* Logger.Info("Nächster Check in 60 Sekunden"); */
if (hadEntries) Bot.Save(); if (hadEntries) {
Bot.Save();
}
Bot.JobQueue.Change(TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(-1)); Bot.JobQueue.Change(TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(-1));
} }
private static async Task SendFinishedMessage(long chatId, string text, RssBotFeed feed, int waitTime = 10) private static async Task SendFinishedMessage(long chatId, string text, RssBotFeed feed, int waitTime = 10)
{ {
try try {
{
await Bot.BotClient.SendTextMessageAsync(chatId, text, ParseMode.Html, true, true); await Bot.BotClient.SendTextMessageAsync(chatId, text, ParseMode.Html, true, true);
Thread.Sleep(1000); Thread.Sleep(1000);
} catch (ApiRequestException e) } catch (ApiRequestException e) {
{ if (e.ErrorCode.Equals(403)) {
if (e.ErrorCode.Equals(403))
{
Logger.Warn(e.Message); Logger.Warn(e.Message);
feed.Cleanup(chatId); feed.Cleanup(chatId);
if (feed.Subs.Count == 0) // was last subscriber if (feed.Subs.Count == 0) // was last subscriber
Bot.RssBotFeeds.Remove(feed);
} else
{ {
Bot.RssBotFeeds.Remove(feed);
}
} else {
Logger.Error($"{e.ErrorCode}: {e.Message}"); Logger.Error($"{e.ErrorCode}: {e.Message}");
} }
} catch (HttpRequestException e) // likely 429 } catch (HttpRequestException) // likely 429
{ {
Logger.Warn($"Got rate limited, waiting {waitTime} seconds..."); Logger.Warn($"Rate-Limit erreicht, warte {waitTime} Sekunden...");
Thread.Sleep(waitTime * 1000); Thread.Sleep(waitTime * 1000);
await SendFinishedMessage(chatId, text, feed, (waitTime * 2)); await SendFinishedMessage(chatId, text, feed, waitTime * 2);
} }
} }
public static async void ShowAvailableFeeds(Message message, GroupCollection args) { public static async void ShowAvailableFeeds(Message message, GroupCollection args)
{
string url = args[1].Value; string url = args[1].Value;
IEnumerable<HtmlFeedLink> feeds; IEnumerable<HtmlFeedLink> feeds;
try { try {

3
Configuration.cs
View File

@ -18,7 +18,8 @@ namespace RSSBot {
public static List<int> Admins; public static List<int> Admins;
private static readonly Logger Logger = LogManager.GetCurrentClassLogger(); private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
public static void Parse() { public static void Parse()
{
if (!File.Exists("NLog.config")) { if (!File.Exists("NLog.config")) {
Console.WriteLine("NLog.config nicht gefunden, setze auf INFO..."); Console.WriteLine("NLog.config nicht gefunden, setze auf INFO...");
LoggingConfiguration config = new LoggingConfiguration(); LoggingConfiguration config = new LoggingConfiguration();

13
RegexHandler.cs
View File

@ -7,15 +7,16 @@ namespace RSSBot {
/// RegexHandler for Telegram Bots. /// RegexHandler for Telegram Bots.
/// </summary> /// </summary>
public class RegexHandler { public class RegexHandler {
private string Pattern; private readonly Action<Message, GroupCollection> CallbackFunction;
private Action<Message, GroupCollection> CallbackFunction; private readonly string Pattern;
/// <summary> /// <summary>
/// Constructor for the RegexHandler. /// Constructor for the RegexHandler.
/// </summary> /// </summary>
/// <param name="pattern">Regex pattern</param> /// <param name="pattern">Regex pattern</param>
/// <param name="callback">Callback function to call when the update should be processed</param> /// <param name="callback">Callback function to call when the update should be processed</param>
public RegexHandler(string pattern, Action<Message, GroupCollection> callback) { public RegexHandler(string pattern, Action<Message, GroupCollection> callback)
{
Pattern = pattern; Pattern = pattern;
CallbackFunction = callback; CallbackFunction = callback;
} }
@ -25,7 +26,8 @@ namespace RSSBot {
/// </summary> /// </summary>
/// <param name="message">Telegram Message object</param> /// <param name="message">Telegram Message object</param>
/// <returns>true if the update should be handled</returns> /// <returns>true if the update should be handled</returns>
public bool HandleUpdate(Message message) { public bool HandleUpdate(Message message)
{
return Regex.IsMatch(message.Text, return Regex.IsMatch(message.Text,
Pattern, Pattern,
RegexOptions.IgnoreCase); RegexOptions.IgnoreCase);
@ -35,7 +37,8 @@ namespace RSSBot {
/// Calls the assoicated callback function. /// Calls the assoicated callback function.
/// </summary> /// </summary>
/// <param name="message">Telegram Message object</param> /// <param name="message">Telegram Message object</param>
public void ProcessUpdate(Message message) { public void ProcessUpdate(Message message)
{
GroupCollection matches = Regex.Match(message.Text, GroupCollection matches = Regex.Match(message.Text,
Pattern, Pattern,
RegexOptions.IgnoreCase RegexOptions.IgnoreCase

34
RssBotFeed.cs
View File

@ -6,14 +6,12 @@ using CodeHollow.FeedReader;
namespace RSSBot { namespace RSSBot {
public class RssBotFeed { public class RssBotFeed {
public readonly HashSet<long> Subs = new HashSet<long>();
public readonly string Url; public readonly string Url;
public string LastEntry; public string LastEntry;
public readonly HashSet<long> Subs = new HashSet<long>();
public string MainLink { get; private set; }
public string Title { get; private set; }
public List<FeedItem> NewEntries { get; private set; }
public RssBotFeed(string url, string lastEntry = null, HashSet<long> subs = null) { public RssBotFeed(string url, string lastEntry = null, HashSet<long> subs = null)
{
Url = url; Url = url;
if (!string.IsNullOrWhiteSpace(lastEntry)) { if (!string.IsNullOrWhiteSpace(lastEntry)) {
LastEntry = lastEntry; LastEntry = lastEntry;
@ -24,7 +22,12 @@ namespace RSSBot {
} }
} }
public async Task Check() { public string MainLink { get; private set; }
public string Title { get; private set; }
public List<FeedItem> NewEntries { get; private set; }
public async Task Check()
{
Feed feed = await FeedReader.ReadAsync(Url); Feed feed = await FeedReader.ReadAsync(Url);
if (string.IsNullOrWhiteSpace(feed.Link)) { if (string.IsNullOrWhiteSpace(feed.Link)) {
throw new Exception("Kein gültiger RSS-Feed."); throw new Exception("Kein gültiger RSS-Feed.");
@ -33,7 +36,10 @@ namespace RSSBot {
MainLink = feed.Link; MainLink = feed.Link;
Title = feed.Title; Title = feed.Title;
if (feed.Items == null || feed.Items.Count <= 0) return; if (feed.Items == null || feed.Items.Count <= 0) {
return;
}
NewEntries = string.IsNullOrWhiteSpace(LastEntry) NewEntries = string.IsNullOrWhiteSpace(LastEntry)
? feed.Items.ToList() ? feed.Items.ToList()
: GetNewEntries(feed.Items); : GetNewEntries(feed.Items);
@ -43,7 +49,8 @@ namespace RSSBot {
: feed.Items.First().Id; : feed.Items.First().Id;
} }
private List<FeedItem> GetNewEntries(IEnumerable<FeedItem> entries) { private List<FeedItem> GetNewEntries(IEnumerable<FeedItem> entries)
{
List<FeedItem> newEntries = new List<FeedItem>(); List<FeedItem> newEntries = new List<FeedItem>();
foreach (FeedItem entry in entries) { foreach (FeedItem entry in entries) {
if (!string.IsNullOrWhiteSpace(entry.Id)) { if (!string.IsNullOrWhiteSpace(entry.Id)) {
@ -65,17 +72,22 @@ namespace RSSBot {
return newEntries; return newEntries;
} }
public override string ToString() { public override string ToString()
{
return $"RSS-Feed: '{Url}'"; return $"RSS-Feed: '{Url}'";
} }
public void Cleanup(long chatId) { public void Cleanup(long chatId)
{
Subs.Remove(chatId); Subs.Remove(chatId);
string feedKey = $"{Configuration.RedisHash}:{Url}"; string feedKey = $"{Configuration.RedisHash}:{Url}";
Configuration.Database.SetRemove($"{feedKey}:subs", chatId); Configuration.Database.SetRemove($"{feedKey}:subs", chatId);
// No subscribers, delete all references // No subscribers, delete all references
if (Subs.Count != 0 || !Configuration.Database.KeyExists(feedKey)) return; if (Subs.Count != 0 || !Configuration.Database.KeyExists(feedKey)) {
return;
}
Configuration.Database.KeyDelete(feedKey); Configuration.Database.KeyDelete(feedKey);
Configuration.Database.KeyDelete($"{feedKey}:subs"); Configuration.Database.KeyDelete($"{feedKey}:subs");
Configuration.Database.SetRemove($"{Configuration.RedisHash}:feeds", Url); Configuration.Database.SetRemove($"{Configuration.RedisHash}:feeds", Url);

28
Utils.cs
View File

@ -9,11 +9,20 @@ namespace RSSBot {
public static class Utils { public static class Utils {
private static readonly Regex RegexHtml = new Regex("<.*?>"); private static readonly Regex RegexHtml = new Regex("<.*?>");
public static string StripHtml(string input) { public static string StripHtml(string input)
{
return RegexHtml.Replace(input, string.Empty).Trim(); return RegexHtml.Replace(input, string.Empty).Trim();
} }
private static string CleanRss(string input) { public static string EscapeHtml(string input)
{
input = input.Replace("<", "&lt;");
input = input.Replace(">", "&gt;");
return input;
}
private static string CleanRss(string input)
{
string[] replacements = { string[] replacements = {
"[←]", "[←]",
"[…]", "[…]",
@ -69,22 +78,27 @@ namespace RSSBot {
return input; return input;
} }
public static string ProcessContent(string input) { public static string ProcessContent(string input)
var content = StripHtml(HttpUtility.HtmlDecode(input)); {
string content = StripHtml(HttpUtility.HtmlDecode(input));
content = CleanRss(content); content = CleanRss(content);
if (content.Length > 250) content = content.Substring(0, 250) + "..."; if (content.Length > 250) {
content = content.Substring(0, 250) + "...";
}
return content; return content;
} }
public static GroupCollection ReturnMatches(string text, string pattern) { public static GroupCollection ReturnMatches(string text, string pattern)
{
return Regex.Match(text, return Regex.Match(text,
pattern, pattern,
RegexOptions.IgnoreCase RegexOptions.IgnoreCase
).Groups; ).Groups;
} }
public static async Task<bool> IsBotAdmin(long chatId) { public static async Task<bool> IsBotAdmin(long chatId)
{
ChatMember chatMember = await Bot.BotClient.GetChatMemberAsync(chatId, Bot.BotClient.BotId); ChatMember chatMember = await Bot.BotClient.GetChatMemberAsync(chatId, Bot.BotClient.BotId);
return chatMember.Status.Equals(ChatMemberStatus.Administrator); return chatMember.Status.Equals(ChatMemberStatus.Administrator);
} }