Add download by url

bot/modules/url/id_getter.py

@@ -0,0 +1,30 @@
+from .recognise import RecognisedService
+
+import aiohttp
+
+
+async def get_url_after_redirect(url: str) -> str:
+    async with aiohttp.ClientSession() as session:
+        async with session.head(url, allow_redirects=True) as resp:
+            return str(resp.url)
+
+
+async def get_id(recognised: RecognisedService):
+    if recognised.name == 'yt':
+        return recognised.parse_result.path.replace('/', '') if (
+            recognised.parse_result.netloc.endswith('youtu.be')
+        ) else recognised.parse_result.query.split('=')[1].split('&')[0]
+
+    elif recognised.name == 'spot':
+        if recognised.parse_result.netloc.endswith('open.spotify.com'):
+            return recognised.parse_result.path.split('/')[2]
+        else:
+            url = await get_url_after_redirect(recognised.parse_result.geturl())
+            return url.split('/')[-1].split('?')[0]
+
+    elif recognised.name == 'deez':
+        if recognised.parse_result.netloc.endswith('deezer.com'):
+            return recognised.parse_result.path.split('/')[-1]
+        else:
+            url = await get_url_after_redirect(recognised.parse_result.geturl())
+            return url.split('/')[-1].split('?')[0]