feat: [dl-downer] add YouTube support

dl-downer/requirements.txt

@@ -5,3 +5,4 @@ pywidevine==1.8.0
 playwright==1.42.0
 python-dotenv
 psycopg2-binary
+yt-dlp

dl-downer/src/downloaders/YOUTUBE.py

@@ -0,0 +1,36 @@
+import os
+import subprocess
+
+from loguru import logger
+
+from ..models.dl_request import DLRequest
+
+def YOUTUBE_DL(dl_request: DLRequest):
+
+  command = [ 'yt-dlp',
+    '--yes-playlist',
+    '-N', '4',
+    '--restrict-filenames',
+    '--write-subs',
+    '--sub-langs', 'all',
+    '--merge-output-format', 'mkv',
+  ]
+
+  if dl_request.preferred_quality_matcher:
+    p = dl_request.preferred_quality_matcher
+    command.extend([ '-f', f'bv[height<={p}]+ba/b[height<={p}]' ])
+
+  filename = '%(title)s.%(ext)s'
+  if dl_request.output_filename:
+    filename = f'{dl_request.output_filename}.%(ext)s'
+  file_path = os.path.join(
+    os.getenv('DOWNLOADS_FOLDER', './downloads'),
+    dl_request.platform,
+    filename,
+  )
+
+  command.extend([ '-o', file_path ])
+  command.extend([ dl_request.video_page_or_manifest_url ])
+
+  logger.debug(f'Running command: {command}')
+  subprocess.run(command)

dl-downer/src/server.py

@@ -57,6 +57,9 @@ def start_server():
         elif dl_request.platform == DLRequestPlatform.GENERIC_MANIFEST.value:
           from .downloaders.GENERIC_MANIFEST import GENERIC_MANIFEST_DL
           GENERIC_MANIFEST_DL(dl_request)
+        elif dl_request.platform == DLRequestPlatform.YOUTUBE.value:
+          from .downloaders.YOUTUBE import YOUTUBE_DL
+          YOUTUBE_DL(dl_request)
         else:
           logger.error(f'Unsupported platform: {dl_request.platform}')
           # throw error for now