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[fix] youtube_noapi : don't crash when there is no content

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This commit is contained in:
Dalf 2015-06-03 10:12:30 +02:00
parent 8ce6043859
commit 4e0f079a8c
1 changed files with 30 additions and 14 deletions
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24
searx/engines/youtube_noapi.py
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@ -34,6 +34,22 @@ title_xpath = './/div[@class="yt-lockup-content"]/h3/a'
content_xpath = './/div[@class="yt-lockup-content"]/div[@class="yt-lockup-description yt-ui-ellipsis yt-ui-ellipsis-2"]'
# get element in list or default value
def list_get(a_list, index, default=None):
if len(a_list) > index:
return a_list[index]
else:
return default
# returns extract_text on the first result selected by the xpath or None
def extract_text_from_dom(result, xpath):
r = result.xpath(xpath)
if len(r) > 0:
return extract_text(r[0])
return None
# do search-request
def request(query, params):
params['url'] = search_url.format(query=quote_plus(query),
@ -50,13 +66,13 @@ def response(resp):
# parse results
for result in dom.xpath(results_xpath):
videoid = result.xpath('@data-context-item-id')[0]
videoid = list_get(result.xpath('@data-context-item-id'), 0)
if videoid is not None:
url = base_youtube_url + videoid
thumbnail = 'https://i.ytimg.com/vi/' + videoid + '/hqdefault.jpg'
title = extract_text(result.xpath(title_xpath)[0])
content = extract_text(result.xpath(content_xpath)[0])
title = extract_text_from_dom(result, title_xpath) or videoid
content = extract_text_from_dom(result, content_xpath)
embedded = embedded_url.format(videoid=videoid)