204 lines
6.6 KiB
Python
204 lines
6.6 KiB
Python
from typing import Any
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from typing import Optional
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from urllib.parse import parse_qs
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from urllib.parse import urlparse
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from ytdl_sub.validators.validators import StringValidator
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class YoutubeVideoUrlValidator(StringValidator):
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_expected_value_type_name = "Youtube video url"
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@classmethod
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def _get_video_id(cls, url: str) -> Optional[str]:
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"""
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Examples:
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https://youtu.be/SA2iWivDJiE
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https://www.youtube.com/watch?v=_oPAwA_Udwc&feature=feedu
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https://www.youtube.com/embed/SA2iWivDJiE
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https://www.youtube.com/v/SA2iWivDJiE?version=3&hl=en_US
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https://www.youtube.com/shorts/ucYmEqmlhFw
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Returns
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-------
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The video id if it is parsed correctly. None if parsing fails
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"""
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# If the url doesn't contain youtube or youtu.be, assume it is invalid
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if "youtube.com" not in url and "youtu.be" not in url:
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return None
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# If https:// is not present, urlparse will not work
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if not url.startswith("https://"):
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url = f"https://{url}"
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query = urlparse(url)
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if query.hostname in ("youtu.be", "www.youtu.be"):
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return query.path[1:]
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if query.hostname in ("youtube.com", "www.youtube.com"):
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if query.path == "/watch":
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parsed_q = parse_qs(query.query)
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if "v" in parsed_q:
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return parsed_q["v"][0]
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if query.path.startswith(("/embed/", "/v/", "/shorts/")):
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return query.path.split("/")[2]
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return None
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def __init__(self, name: str, value: Any):
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super().__init__(name, value)
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self._video_id = self._get_video_id(value)
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if not self._video_id:
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raise self._validation_exception(f"'{value}' is not a valid Youtube video url.")
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@property
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def video_url(self) -> str:
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"""
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Returns
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-------
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Full video URL
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"""
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return f"https://youtube.com/watch?v={self._video_id}"
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class YoutubePlaylistUrlValidator(StringValidator):
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_expected_value_type_name = "Youtube playlist url"
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@classmethod
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def _get_playlist_id(cls, url: str) -> Optional[str]:
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"""
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Examples:
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- https://www.youtube.com/playlist?list=PLlaN88a7y2_plecYoJxvRFTLHVbIVAOoc
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"""
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# If the url doesn't contain youtube, assume it is invalid
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if "youtube.com" not in url:
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return None
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# If https:// is not present, urlparse will not work
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if not url.startswith("https://"):
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url = f"https://{url}"
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query = urlparse(url)
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if query.hostname in ("youtube.com", "www.youtube.com"):
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if query.path == "/playlist":
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parsed_q = parse_qs(query.query)
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if "list" in parsed_q:
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return parsed_q["list"][0]
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return None
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def __init__(self, name: str, value: Any):
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super().__init__(name, value)
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self._playlist_id = self._get_playlist_id(value)
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if not self._playlist_id:
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raise self._validation_exception(f"'{value}' is not a valid Youtube playlist url.")
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@property
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def playlist_url(self) -> str:
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"""
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Returns
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-------
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Full playlist URL
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"""
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return f"https://youtube.com/playlist?list={self._playlist_id}"
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class YoutubeChannelUrlValidator(StringValidator):
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_expected_value_type_name = "Youtube channel url"
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@classmethod
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def _get_channel_url(cls, url: str) -> Optional[str]:
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"""
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Examples:
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- https://www.youtube.com/channel/UCuAXFkgsw1L7xaCfnd5JJOw
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- https://www.youtube.com/user/username
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- https://www.youtube.com/c/channel_name
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- https://youtube.com/channel_name
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"""
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# If the url doesn't contain youtube, assume it is invalid
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if "youtube.com" not in url:
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return None
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# If https:// is not present, urlparse will not work
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if not url.startswith("https://"):
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url = f"https://{url}"
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query = urlparse(url)
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if query.hostname in ("youtube.com", "www.youtube.com"):
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query_path_split = query.path.split("/")
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if any(query.path.startswith(qpath) for qpath in ("/channel/", "/user/", "/c/")):
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# Ensure there is "/path/id".split('/') = ['', 'path', 'id'] at least three
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if len(query_path_split) < 3 or len(query_path_split[2]) == 0:
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return None
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return f"https://youtube.com{query.path}"
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if len(query_path_split) == 2 and len(query_path_split[1]) > 0:
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# For channels that do not feature a 'c' or 'channel'
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# Ensure length of channel string is at least one
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return f"https://youtube.com{query.path}"
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return None
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def __init__(self, name: str, value: Any):
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super().__init__(name, value)
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self._channel_url = self._get_channel_url(value)
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if not self._channel_url:
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raise self._validation_exception(f"'{value}' is not a valid Youtube channel url.")
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@property
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def channel_url(self) -> str:
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"""
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Returns
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-------
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Full channel URL
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"""
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return self._channel_url
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class SoundcloudUsernameUrlValidator(StringValidator):
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_expected_value_type_name = "Soundcloud username url"
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@classmethod
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def _get_channel_url(cls, url: str) -> Optional[str]:
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"""
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Examples:
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- https://www.soundcloud.com/artist_name
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"""
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# If the url doesn't contain soundcloud, assume it is invalid
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if "soundcloud.com" not in url:
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return None
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# If https:// is not present, urlparse will not work
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if not url.startswith("https://"):
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url = f"https://{url}"
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query = urlparse(url)
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if query.hostname in ("soundcloud.com", "www.soundcloud.com"):
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if len(query.path) > 2: # /artist_name
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username = query.path[1:].split("/")[0] # strip extra paths or slashes
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username = username.split("?")[0] # strip extra arguments
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return f"https://soundcloud.com/{username}"
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return None
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def __init__(self, name: str, value: Any):
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super().__init__(name, value)
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self._username_url = self._get_channel_url(value)
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if not self._username_url:
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raise self._validation_exception(f"'{value}' is not a valid Soundcloud username url.")
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@property
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def username_url(self) -> str:
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"""
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Returns
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-------
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Full artist URL
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"""
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return self._username_url
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