feat(cookies): add cookie support for yt-dlp (YouTube auth) closes #41

Add CookiesFromBrowser and CookiesFile config options.
CookiesFromBrowser (e.g. 'firefox') reads fresh cookies each run.
CookiesFile points to a Netscape cookies.txt (less reliable).

Author: ZenonEl

Config/Config.cs

@@ -31,6 +31,10 @@ class Config
         public static bool isUseGalleryDl = false;
         public static string accessDeniedMessageContact = " ";
 
+        // Cookie Configuration
+        public static string? cookiesFromBrowser; // e.g. "firefox", "chrome" — reads fresh cookies each time
+        public static string? cookiesFile;        // path to Netscape cookies.txt file
+
         // Proxy Configuration
         // Proxy for media downloads (yt-dlp/gallery-dl). Supports HTTP/SOCKS5.
         public static string proxy = "";
@@ -92,6 +96,9 @@ public static void LoadConfig()
             accessDeniedMessageContact = configuration.GetValue("AppSettings:AccessDeniedMessageContact", " ");
             maxConcurrentDownloads = configuration.GetValue("AppSettings:MaxConcurrentDownloads", 3);
 
+            cookiesFromBrowser = configuration["AppSettings:CookiesFromBrowser"];
+            cookiesFile = configuration["AppSettings:CookiesFile"];
+
             videoGetDelay = configuration.GetValue("MessageDelaySettings:VideoGetDelay", 1000);
             contactSendDelay = configuration.GetValue("MessageDelaySettings:ContactSendDelay", 1000);
 

TelegramBot/MediaGet.cs

@@ -65,6 +65,11 @@ public class MediaGet
                     if (!string.IsNullOrEmpty(effectiveProxy))
                         overrideOptions.Proxy = effectiveProxy;
 
+                    if (!string.IsNullOrEmpty(Config.cookiesFromBrowser))
+                        overrideOptions.CookiesFromBrowser = Config.cookiesFromBrowser;
+                    if (!string.IsNullOrEmpty(Config.cookiesFile))
+                        overrideOptions.Cookies = Config.cookiesFile;
+
                     DateTime lastProgressUpdate = DateTime.MinValue;
                     var progress = new Progress<DownloadProgress>(p =>
                     {