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[extractor] Simplify search extractors

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pukkandan 2021-10-09 02:09:55 +05:30
parent a903d8285c
commit cc16383ff3
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GPG key ID: 0F00D95A001F4698
6 changed files with 27 additions and 72 deletions
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10
yt_dlp/extractor/common.py
View file

@ -4,6 +4,7 @@
import base64
import datetime
import hashlib
import itertools
import json
import netrc
import os
@ -3617,7 +3618,14 @@ def _real_extract(self, query):
return self._get_n_results(query, n)
def _get_n_results(self, query, n):
"""Get a specified number of results for a query"""
"""Get a specified number of results for a query.
Either this function or _search_results must be overridden by subclasses """
return self.playlist_result(
itertools.islice(self._search_results(query), 0, None if n == float('inf') else n),
query, query)
def _search_results(self, query):
"""Returns an iterator of search results"""
raise NotImplementedError('This method must be implemented by subclasses')
@property

28
yt_dlp/extractor/googlesearch.py
View file

@ -11,6 +11,7 @@ class GoogleSearchIE(SearchInfoExtractor):
_MAX_RESULTS = 1000
IE_NAME = 'video.google:search'
_SEARCH_KEY = 'gvsearch'
_WORKING = False
_TEST = {
'url': 'gvsearch15:python language',
'info_dict': {
@ -20,16 +21,7 @@ class GoogleSearchIE(SearchInfoExtractor):
'playlist_count': 15,
}
def _get_n_results(self, query, n):
"""Get a specified number of results for a query"""
entries = []
res = {
'_type': 'playlist',
'id': query,
'title': query,
}
def _search_results(self, query):
for pagenum in itertools.count():
webpage = self._download_webpage(
'http://www.google.com/search',
@ -44,16 +36,8 @@ def _get_n_results(self, query, n):
for hit_idx, mobj in enumerate(re.finditer(
r'<h3 class="r"><a href="([^"]+)"', webpage)):
if re.search(f'id="vidthumb{hit_idx + 1}"', webpage):
yield self.url_result(mobj.group(1))
# Skip playlists
if not re.search(r'id="vidthumb%d"' % (hit_idx + 1), webpage):
continue
entries.append({
'_type': 'url',
'url': mobj.group(1)
})
if (len(entries) >= n) or not re.search(r'id="pnnext"', webpage):
res['entries'] = entries[:n]
return res
if not re.search(r'id="pnnext"', webpage):
return

8
yt_dlp/extractor/niconico.py
View file

@ -709,11 +709,9 @@ class NicovideoSearchIE(SearchInfoExtractor, NicovideoSearchURLIE):
_SEARCH_KEY = 'nicosearch'
_TESTS = []
def _get_n_results(self, query, n):
entries = self._entries(self._proto_relative_url(f'//www.nicovideo.jp/search/{query}'), query)
if n < float('inf'):
entries = itertools.islice(entries, 0, n)
return self.playlist_result(entries, query, query)
def _search_results(self, query):
return self._entries(
self._proto_relative_url(f'//www.nicovideo.jp/search/{query}'), query)
class NicovideoSearchDateIE(NicovideoSearchIE):

21
yt_dlp/extractor/soundcloud.py
View file

@ -880,25 +880,14 @@ def _get_collection(self, endpoint, collection_id, **query):
})
next_url = update_url_query(self._API_V2_BASE + endpoint, query)
collected_results = 0
for i in itertools.count(1):
response = self._download_json(
next_url, collection_id, 'Downloading page {0}'.format(i),
next_url, collection_id, f'Downloading page {i}',
'Unable to download API page', headers=self._HEADERS)
collection = response.get('collection', [])
if not collection:
break
collection = list(filter(bool, collection))
collected_results += len(collection)
for item in collection:
yield self.url_result(item['uri'], SoundcloudIE.ie_key())
if not collection or collected_results >= limit:
break
for item in response.get('collection') or []:
if item:
yield self.url_result(item['uri'], SoundcloudIE.ie_key())
next_url = response.get('next_href')
if not next_url:
@ -906,4 +895,4 @@ def _get_collection(self, endpoint, collection_id, **query):
def _get_n_results(self, query, n):
tracks = self._get_collection('search/tracks', query, limit=n, q=query)
return self.playlist_result(tracks, playlist_title=query)
return self.playlist_result(tracks, query, query)

22
yt_dlp/extractor/yahoo.py
View file

@ -334,31 +334,15 @@ class YahooSearchIE(SearchInfoExtractor):
IE_NAME = 'screen.yahoo:search'
_SEARCH_KEY = 'yvsearch'
def _get_n_results(self, query, n):
"""Get a specified number of results for a query"""
entries = []
def _search_results(self, query):
for pagenum in itertools.count(0):
result_url = 'http://video.search.yahoo.com/search/?p=%s&fr=screen&o=js&gs=0&b=%d' % (compat_urllib_parse.quote_plus(query), pagenum * 30)
info = self._download_json(result_url, query,
note='Downloading results page ' + str(pagenum + 1))
m = info['m']
results = info['results']
for (i, r) in enumerate(results):
if (pagenum * 30) + i >= n:
break
mobj = re.search(r'(?P<url>screen\.yahoo\.com/.*?-\d*?\.html)"', r)
e = self.url_result('http://' + mobj.group('url'), 'Yahoo')
entries.append(e)
if (pagenum * 30 + i >= n) or (m['last'] >= (m['total'] - 1)):
yield from (self.url_result(result['rurl']) for result in info['results'])
if info['m']['last'] >= info['m']['total'] - 1:
break
return {
'_type': 'playlist',
'id': query,
'entries': entries,
}
class YahooGyaOPlayerIE(InfoExtractor):
IE_NAME = 'yahoo:gyao:player'

10
yt_dlp/extractor/youtube.py
View file

@ -4615,11 +4615,10 @@ class YoutubeSearchIE(SearchInfoExtractor, YoutubeTabIE):
_SEARCH_PARAMS = None
_TESTS = []
def _entries(self, query, n):
def _search_results(self, query):
data = {'query': query}
if self._SEARCH_PARAMS:
data['params'] = self._SEARCH_PARAMS
total = 0
continuation = {}
for page_num in itertools.count(1):
data.update(continuation)
@ -4662,17 +4661,10 @@ def _entries(self, query, n):
continue
yield self._extract_video(video)
total += 1
if total == n:
return
if not continuation:
break
def _get_n_results(self, query, n):
"""Get a specified number of results for a query"""
return self.playlist_result(self._entries(query, n), query, query)
class YoutubeSearchDateIE(YoutubeSearchIE):
IE_NAME = YoutubeSearchIE.IE_NAME + ':date'