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Fix failure to parse comments when there's one from deleted channel

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Specifically, fix failures when any of the fields from the parsed
comment are None, such as author, author_url, etc.
(failure due to string concatenation when building urls).
This commit is contained in:
James Taylor 2020-03-08 16:17:04 -07:00
parent fa112592fa
commit 56e7751da7
2 changed files with 32 additions and 12 deletions
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35
youtube/comments.py
View File

@ -1,4 +1,5 @@
from youtube import proto, util, yt_data_extract, accounts
from youtube.util import concat_or_none
from youtube import yt_app
import settings
@ -88,22 +89,29 @@ def single_comment_ctoken(video_id, comment_id):
def post_process_comments_info(comments_info):
for comment in comments_info['comments']:
comment['author_url'] = util.URL_ORIGIN + comment['author_url']
comment['author_avatar'] = '/' + comment['author_avatar']
comment['author_url'] = concat_or_none(
util.URL_ORIGIN, comment['author_url'])
comment['author_avatar'] = concat_or_none(
'/', comment['author_avatar'])
comment['permalink'] = util.URL_ORIGIN + '/watch?v=' + comments_info['video_id'] + '&lc=' + comment['id']
comment['permalink'] = concat_or_none(util.URL_ORIGIN, '/watch?v=',
comments_info['video_id'], '&lc=', comment['id'])
if comment['author_id'] in accounts.accounts:
comment['delete_url'] = (util.URL_ORIGIN + '/delete_comment?video_id='
+ comments_info['video_id']
+ '&channel_id='+ comment['author_id']
+ '&comment_id=' + comment['id'])
comment['delete_url'] = concat_or_none(util.URL_ORIGIN,
'/delete_comment?video_id=', comments_info['video_id'],
'&channel_id=', comment['author_id'],
'&comment_id=', comment['id'])
reply_count = comment['reply_count']
if reply_count == 0:
comment['replies_url'] = util.URL_ORIGIN + '/post_comment?parent_id=' + comment['id'] + "&video_id=" + comments_info['video_id']
comment['replies_url'] = concat_or_none(util.URL_ORIGIN,
'/post_comment?parent_id=', comment['id'],
'&video_id=', comments_info['video_id'])
else:
comment['replies_url'] = util.URL_ORIGIN + '/comments?parent_id=' + comment['id'] + "&video_id=" + comments_info['video_id']
comment['replies_url'] = concat_or_none(util.URL_ORIGIN,
'/comments?parent_id=', comment['id'],
'&video_id=', comments_info['video_id'])
if reply_count == 0:
comment['view_replies_text'] = 'Reply'
@ -120,7 +128,8 @@ def post_process_comments_info(comments_info):
comments_info['include_avatars'] = settings.enable_comment_avatars
if comments_info['ctoken']:
comments_info['more_comments_url'] = util.URL_ORIGIN + '/comments?ctoken=' + comments_info['ctoken']
comments_info['more_comments_url'] = concat_or_none(util.URL_ORIGIN,
'/comments?ctoken=', comments_info['ctoken'])
comments_info['page_number'] = page_number = str(int(comments_info['offset']/20) + 1)
@ -128,8 +137,10 @@ def post_process_comments_info(comments_info):
comments_info['sort_text'] = 'top' if comments_info['sort'] == 0 else 'newest'
comments_info['video_url'] = util.URL_ORIGIN + '/watch?v=' + comments_info['video_id']
comments_info['video_thumbnail'] = '/i.ytimg.com/vi/'+ comments_info['video_id'] + '/mqdefault.jpg'
comments_info['video_url'] = concat_or_none(util.URL_ORIGIN,
'/watch?v=', comments_info['video_id'])
comments_info['video_thumbnail'] = concat_or_none('/i.ytimg.com/vi/',
comments_info['video_id'], '/mqdefault.jpg')
def video_comments(video_id, sort=0, offset=0, lc='', secret_key=''):

9
youtube/util.py
View File

@ -357,6 +357,15 @@ def left_remove(string, substring):
return string[len(substring):]
return string
def concat_or_none(*strings):
'''Concatenates strings. Returns None if any of the arguments are None'''
result = ''
for string in strings:
if string is None:
return None
result += string
return result
def prefix_urls(item):
try: