[scraper] saves opened torrent contents and videos and subs separately

scraper/lib/extension.js

@@ -0,0 +1,52 @@
+const VIDEO_EXTENSIONS = [
+  "3g2",
+  "3gp",
+  "avi",
+  "flv",
+  "mkv",
+  "mov",
+  "mp2",
+  "mp4",
+  "m4v",
+  "mpe",
+  "mpeg",
+  "mpg",
+  "mpv",
+  "webm",
+  "wmv",
+  "ogm"
+];
+const SUBTITLE_EXTENSIONS = [
+  "aqt",
+  "gsub",
+  "jss",
+  "sub",
+  "ttxt",
+  "pjs",
+  "psb",
+  "rt",
+  "smi",
+  "slt",
+  "ssf",
+  "srt",
+  "ssa",
+  "ass",
+  "usf",
+  "idx",
+  "vtt"
+];
+
+function isVideo(filename) {
+  return isExtension(filename, VIDEO_EXTENSIONS);
+}
+
+function isSubtitle(filename) {
+  return isExtension(filename, SUBTITLE_EXTENSIONS);
+}
+
+function isExtension(filename, extensions) {
+  const extensionMatch = filename.match(/\.(\w{2,4})$/);
+  return extensionMatch && extensions.includes(extensionMatch[1].toLowerCase());
+}
+
+module.exports = { isVideo, isSubtitle }