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yt-dlp/yt_dlp/extractor/prx.py
coletdjnz 85fee22152
[PRX] Add Extractors (#2245) 
Closes #2144, https://github.com/ytdl-org/youtube-dl/issues/15948

Authored by: coletdjnz
2022-01-21 12:30:29 +05:30

431 lines
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Python
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# coding: utf-8
from __future__ import unicode_literals
import itertools
from .common import InfoExtractor, SearchInfoExtractor
from ..utils import (
urljoin,
traverse_obj,
int_or_none,
mimetype2ext,
clean_html,
url_or_none,
unified_timestamp,
str_or_none,
)
class PRXBaseIE(InfoExtractor):
PRX_BASE_URL_RE = r'https?://(?:(?:beta|listen)\.)?prx.org/%s'
def _call_api(self, item_id, path, query=None, fatal=True, note='Downloading CMS API JSON'):
return self._download_json(
urljoin('https://cms.prx.org/api/v1/', path), item_id, query=query, fatal=fatal, note=note)
@staticmethod
def _get_prx_embed_response(response, section):
return traverse_obj(response, ('_embedded', f'prx:{section}'))
@staticmethod
def _extract_file_link(response):
return url_or_none(traverse_obj(
response, ('_links', 'enclosure', 'href'), expected_type=str))
@classmethod
def _extract_image(cls, image_response):
if not isinstance(image_response, dict):
return
return {
'id': str_or_none(image_response.get('id')),
'filesize': image_response.get('size'),
'width': image_response.get('width'),
'height': image_response.get('height'),
'url': cls._extract_file_link(image_response)
}
@classmethod
def _extract_base_info(cls, response):
if not isinstance(response, dict):
return
item_id = str_or_none(response.get('id'))
if not item_id:
return
thumbnail_dict = cls._extract_image(cls._get_prx_embed_response(response, 'image'))
description = (
clean_html(response.get('description'))
or response.get('shortDescription'))
return {
'id': item_id,
'title': response.get('title') or item_id,
'thumbnails': [thumbnail_dict] if thumbnail_dict else None,
'description': description,
'release_timestamp': unified_timestamp(response.get('releasedAt')),
'timestamp': unified_timestamp(response.get('createdAt')),
'modified_timestamp': unified_timestamp(response.get('updatedAt')),
'duration': int_or_none(response.get('duration')),
'tags': response.get('tags'),
'episode_number': int_or_none(response.get('episodeIdentifier')),
'season_number': int_or_none(response.get('seasonIdentifier'))
}
@classmethod
def _extract_series_info(cls, series_response):
base_info = cls._extract_base_info(series_response)
if not base_info:
return
account_info = cls._extract_account_info(
cls._get_prx_embed_response(series_response, 'account')) or {}
return {
**base_info,
'channel_id': account_info.get('channel_id'),
'channel_url': account_info.get('channel_url'),
'channel': account_info.get('channel'),
'series': base_info.get('title'),
'series_id': base_info.get('id'),
}
@classmethod
def _extract_account_info(cls, account_response):
base_info = cls._extract_base_info(account_response)
if not base_info:
return
name = account_response.get('name')
return {
**base_info,
'title': name,
'channel_id': base_info.get('id'),
'channel_url': 'https://beta.prx.org/accounts/%s' % base_info.get('id'),
'channel': name,
}
@classmethod
def _extract_story_info(cls, story_response):
base_info = cls._extract_base_info(story_response)
if not base_info:
return
series = cls._extract_series_info(
cls._get_prx_embed_response(story_response, 'series')) or {}
account = cls._extract_account_info(
cls._get_prx_embed_response(story_response, 'account')) or {}
return {
**base_info,
'series': series.get('series'),
'series_id': series.get('series_id'),
'channel_id': account.get('channel_id'),
'channel_url': account.get('channel_url'),
'channel': account.get('channel')
}
def _entries(self, item_id, endpoint, entry_func, query=None):
"""
Extract entries from paginated list API
@param entry_func: Function to generate entry from response item
"""
total = 0
for page in itertools.count(1):
response = self._call_api(f'{item_id}: page {page}', endpoint, query={
**(query or {}),
'page': page,
'per': 100
})
items = self._get_prx_embed_response(response, 'items')
if not response or not items:
break
yield from filter(None, map(entry_func, items))
total += response['count']
if total >= response['total']:
break
def _story_playlist_entry(self, response):
story = self._extract_story_info(response)
if not story:
return
story.update({
'_type': 'url',
'url': 'https://beta.prx.org/stories/%s' % story['id'],
'ie_key': PRXStoryIE.ie_key()
})
return story
def _series_playlist_entry(self, response):
series = self._extract_series_info(response)
if not series:
return
series.update({
'_type': 'url',
'url': 'https://beta.prx.org/series/%s' % series['id'],
'ie_key': PRXSeriesIE.ie_key()
})
return series
class PRXStoryIE(PRXBaseIE):
_VALID_URL = PRXBaseIE.PRX_BASE_URL_RE % r'stories/(?P<id>\d+)'
_TESTS = [
{
# Story with season and episode details
'url': 'https://beta.prx.org/stories/399200',
'info_dict': {
'id': '399200',
'title': 'Fly Me To The Moon',
'description': 'md5:43230168390b95d3322048d8a56bf2bb',
'release_timestamp': 1640250000,
'timestamp': 1640208972,
'modified_timestamp': 1641318202,
'duration': 1004,
'tags': 'count:7',
'episode_number': 8,
'season_number': 5,
'series': 'AirSpace',
'series_id': '38057',
'channel_id': '220986',
'channel_url': 'https://beta.prx.org/accounts/220986',
'channel': 'Air and Space Museum',
},
'playlist': [{
'info_dict': {
'id': '399200_part1',
'title': 'Fly Me To The Moon',
'description': 'md5:43230168390b95d3322048d8a56bf2bb',
'release_timestamp': 1640250000,
'timestamp': 1640208972,
'modified_timestamp': 1641318202,
'duration': 530,
'tags': 'count:7',
'episode_number': 8,
'season_number': 5,
'series': 'AirSpace',
'series_id': '38057',
'channel_id': '220986',
'channel_url': 'https://beta.prx.org/accounts/220986',
'channel': 'Air and Space Museum',
'ext': 'mp3',
'upload_date': '20211222',
'episode': 'Episode 8',
'release_date': '20211223',
'season': 'Season 5',
'modified_date': '20220104'
}
}, {
'info_dict': {
'id': '399200_part2',
'title': 'Fly Me To The Moon',
'description': 'md5:43230168390b95d3322048d8a56bf2bb',
'release_timestamp': 1640250000,
'timestamp': 1640208972,
'modified_timestamp': 1641318202,
'duration': 474,
'tags': 'count:7',
'episode_number': 8,
'season_number': 5,
'series': 'AirSpace',
'series_id': '38057',
'channel_id': '220986',
'channel_url': 'https://beta.prx.org/accounts/220986',
'channel': 'Air and Space Museum',
'ext': 'mp3',
'upload_date': '20211222',
'episode': 'Episode 8',
'release_date': '20211223',
'season': 'Season 5',
'modified_date': '20220104'
}
}
]
}, {
# Story with only split audio
'url': 'https://beta.prx.org/stories/326414',
'info_dict': {
'id': '326414',
'title': 'Massachusetts v EPA',
'description': 'md5:744fffba08f19f4deab69fa8d49d5816',
'timestamp': 1592509124,
'modified_timestamp': 1592510457,
'duration': 3088,
'tags': 'count:0',
'series': 'Outside/In',
'series_id': '36252',
'channel_id': '206',
'channel_url': 'https://beta.prx.org/accounts/206',
'channel': 'New Hampshire Public Radio',
},
'playlist_count': 4
}, {
# Story with single combined audio
'url': 'https://beta.prx.org/stories/400404',
'info_dict': {
'id': '400404',
'title': 'Cafe Chill (Episode 2022-01)',
'thumbnails': 'count:1',
'description': 'md5:9f1b5a3cbd64fb159d08c3baa31f1539',
'timestamp': 1641233952,
'modified_timestamp': 1641234248,
'duration': 3540,
'series': 'Café Chill',
'series_id': '37762',
'channel_id': '5767',
'channel_url': 'https://beta.prx.org/accounts/5767',
'channel': 'C89.5 - KNHC Seattle',
'ext': 'mp3',
'tags': 'count:0',
'thumbnail': r're:https?://cms\.prx\.org/pub/\w+/0/web/story_image/767965/medium/Aurora_Over_Trees\.jpg',
'upload_date': '20220103',
'modified_date': '20220103'
}
}, {
'url': 'https://listen.prx.org/stories/399200',
'only_matching': True
}
]
def _extract_audio_pieces(self, audio_response):
return [{
'format_id': str_or_none(piece_response.get('id')),
'format_note': str_or_none(piece_response.get('label')),
'filesize': int_or_none(piece_response.get('size')),
'duration': int_or_none(piece_response.get('duration')),
'ext': mimetype2ext(piece_response.get('contentType')),
'asr': int_or_none(piece_response.get('frequency'), scale=1000),
'abr': int_or_none(piece_response.get('bitRate')),
'url': self._extract_file_link(piece_response),
'vcodec': 'none'
} for piece_response in sorted(
self._get_prx_embed_response(audio_response, 'items') or [],
key=lambda p: int_or_none(p.get('position')))]
def _extract_story(self, story_response):
info = self._extract_story_info(story_response)
if not info:
return
audio_pieces = self._extract_audio_pieces(
self._get_prx_embed_response(story_response, 'audio'))
if len(audio_pieces) == 1:
return {
'formats': audio_pieces,
**info
}
entries = [{
**info,
'id': '%s_part%d' % (info['id'], (idx + 1)),
'formats': [fmt],
} for idx, fmt in enumerate(audio_pieces)]
return {
'_type': 'multi_video',
'entries': entries,
**info
}
def _real_extract(self, url):
story_id = self._match_id(url)
response = self._call_api(story_id, f'stories/{story_id}')
return self._extract_story(response)
class PRXSeriesIE(PRXBaseIE):
_VALID_URL = PRXBaseIE.PRX_BASE_URL_RE % r'series/(?P<id>\d+)'
_TESTS = [
{
'url': 'https://beta.prx.org/series/36252',
'info_dict': {
'id': '36252',
'title': 'Outside/In',
'thumbnails': 'count:1',
'description': 'md5:a6bedc5f810777bcb09ab30ff9059114',
'timestamp': 1470684964,
'modified_timestamp': 1582308830,
'channel_id': '206',
'channel_url': 'https://beta.prx.org/accounts/206',
'channel': 'New Hampshire Public Radio',
'series': 'Outside/In',
'series_id': '36252'
},
'playlist_mincount': 39
}, {
# Blank series
'url': 'https://beta.prx.org/series/25038',
'info_dict': {
'id': '25038',
'title': '25038',
'timestamp': 1207612800,
'modified_timestamp': 1207612800,
'channel_id': '206',
'channel_url': 'https://beta.prx.org/accounts/206',
'channel': 'New Hampshire Public Radio',
'series': '25038',
'series_id': '25038'
},
'playlist_count': 0
}
]
def _extract_series(self, series_response):
info = self._extract_series_info(series_response)
return {
'_type': 'playlist',
'entries': self._entries(info['id'], 'series/%s/stories' % info['id'], self._story_playlist_entry),
**info
}
def _real_extract(self, url):
series_id = self._match_id(url)
response = self._call_api(series_id, f'series/{series_id}')
return self._extract_series(response)
class PRXAccountIE(PRXBaseIE):
_VALID_URL = PRXBaseIE.PRX_BASE_URL_RE % r'accounts/(?P<id>\d+)'
_TESTS = [{
'url': 'https://beta.prx.org/accounts/206',
'info_dict': {
'id': '206',
'title': 'New Hampshire Public Radio',
'description': 'md5:277f2395301d0aca563c80c70a18ee0a',
'channel_id': '206',
'channel_url': 'https://beta.prx.org/accounts/206',
'channel': 'New Hampshire Public Radio',
'thumbnails': 'count:1'
},
'playlist_mincount': 380
}]
def _extract_account(self, account_response):
info = self._extract_account_info(account_response)
series = self._entries(
info['id'], f'accounts/{info["id"]}/series', self._series_playlist_entry)
stories = self._entries(
info['id'], f'accounts/{info["id"]}/stories', self._story_playlist_entry)
return {
'_type': 'playlist',
'entries': itertools.chain(series, stories),
**info
}
def _real_extract(self, url):
account_id = self._match_id(url)
response = self._call_api(account_id, f'accounts/{account_id}')
return self._extract_account(response)
class PRXStoriesSearchIE(PRXBaseIE, SearchInfoExtractor):
IE_DESC = 'PRX Stories Search'
IE_NAME = 'prxstories:search'
_SEARCH_KEY = 'prxstories'
def _search_results(self, query):
yield from self._entries(
f'query {query}', 'stories/search', self._story_playlist_entry, query={'q': query})
class PRXSeriesSearchIE(PRXBaseIE, SearchInfoExtractor):
IE_DESC = 'PRX Series Search'
IE_NAME = 'prxseries:search'
_SEARCH_KEY = 'prxseries'
def _search_results(self, query):
yield from self._entries(
f'query {query}', 'series/search', self._series_playlist_entry, query={'q': query})
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