def video_new(channel, playlist):
"""
Add a new video
"""
form = VideoAddForm()
if form.validate_on_submit():
video = Video(playlist=playlist)
form.populate_obj(video)
try:
process_video(video, new=True)
process_slides(video)
except (DataProcessingError, ValueError) as e:
flash(e.message, category="error")
return render_form(form=form,
title=u"New Video",
submit=u"Add",
cancel_url=playlist.url_for(),
ajax=False)
video.make_name()
playlist.videos.append(video)
db.session.commit()
flash(u"Added video '%s'." % video.title, 'success')
return render_redirect(video.url_for('edit'))
return render_form(form=form,
title=u"New Video",
submit=u"Add",
cancel_url=playlist.url_for(),
ajax=False)
def add_new_video(channel, playlist):
form = VideoAddForm()
if form.validate_on_submit():
stream_playlist = channel.playlist_for_stream(create=True)
video = Video(
playlist=playlist if playlist is not None else stream_playlist)
form.populate_obj(video)
try:
process_video(video, new=True)
process_slides(video)
except (DataProcessingError, ValueError) as e:
flash(e.message, category="error")
return render_form(form=form,
title=u"New Video",
submit=u"Add",
cancel_url=channel.url_for(),
ajax=False)
video.make_name()
if playlist is not None and video not in playlist.videos:
playlist.videos.append(video)
if video not in stream_playlist.videos:
stream_playlist.videos.append(video)
db.session.commit()
flash(u"Added video '%s'." % video.title, 'success')
return render_redirect(video.url_for('edit'))
if playlist is None:
cancel_url = channel.url_for()
else:
cancel_url = playlist.url_for()
return render_form(form=form,
title=u"New Video",
submit=u"Add",
cancel_url=cancel_url,
ajax=False)
def process_playlist(playlist, playlist_url):
"""
Get metadata for the playlist from the corresponding site
"""
# Parse the playlist url
if playlist_url:
parsed = urlparse(escape(playlist_url))
# Check video source and get corresponding data
if parsed.netloc in ['youtube.com', 'www.youtube.com']:
try:
stream_playlist = playlist.channel.playlist_for_stream(
create=True)
# first two character of playlist id says what type of playlist, ignore them
playlist_id = parse_qs(parsed.query)['list'][0][2:]
youtube = build('youtube',
'v3',
developerKey=app.config['YOUTUBE_API_KEY'])
playlistitems_list_request = youtube.playlistItems().list(
playlistId=playlist_id, part='snippet', maxResults=50)
playlist_info_request = youtube.playlists().list(
id=playlist_id, part='snippet')
if playlist_info_request:
playlist_infos = playlist_info_request.execute()
for playlist_info in playlist_infos['items']:
playlist.title = playlist.title or playlist_info[
'snippet']['title']
if playlist_info['snippet']['description']:
playlist.description = playlist_info['snippet'][
'description']
while playlistitems_list_request:
playlistitems_list_response = playlistitems_list_request.execute(
)
for playlist_item in playlistitems_list_response['items']:
with db.session.no_autoflush:
video = Video.query.filter_by(
video_source=u'youtube',
channel=playlist.channel,
video_sourceid=playlist_item['snippet']
['resourceId']['videoId']).first()
if video:
if video not in stream_playlist.videos:
stream_playlist.videos.append(video)
if video not in playlist.videos:
playlist.videos.append(video)
else:
video = Video(playlist=playlist if playlist
is not None else stream_playlist)
video.title = playlist_item['snippet']['title']
video.video_url = 'https://www.youtube.com/watch?v=' + playlist_item[
'snippet']['resourceId']['videoId']
if playlist_item['snippet']['description']:
video.description = markdown(
playlist_item['snippet']['description'])
for thumbnail in playlist_item['snippet'][
'thumbnails']['medium']:
thumbnail_url_request = requests.get(
playlist_item['snippet']['thumbnails']
['medium']['url'])
filestorage = return_werkzeug_filestorage(
thumbnail_url_request,
filename=secure_filename(
playlist_item['snippet']['title'])
or 'name-missing')
video.thumbnail_path = thumbnails.save(
filestorage)
video.video_sourceid = playlist_item['snippet'][
'resourceId']['videoId']
video.video_source = u'youtube'
video.make_name()
playlist.videos.append(video)
with db.session.no_autoflush:
if video not in stream_playlist.videos:
stream_playlist.videos.append(video)
playlistitems_list_request = youtube.playlistItems(
).list_next(playlistitems_list_request,
playlistitems_list_response)
except requests.ConnectionError:
raise DataProcessingError("Unable to establish connection")
except gaierror:
raise DataProcessingError("Unable to resolve the hostname")
except KeyError:
raise DataProcessingError(
"Supplied youtube URL doesn't contain video information")
except HttpError:
raise DataProcessingError(
"HTTPError while parsing YouTube playlist")
else:
raise ValueError("Unsupported video site")
else:
raise ValueError("Video URL is missing")
def inner(start_index=1, max_result=50, total=0):
"""Retireves youtube playlist videos recursively
:param start_index: Index to start for fetching videos in playlist
:param max_result: Maximum results to return
:param total: variable to keep track of total videos fetched
"""
r = requests.get(
'http://gdata.youtube.com/feeds/api/playlists/%s?v=2&alt=json&max-result=50&start-index=%d'
% (playlist_id, start_index))
if r.json is None:
raise DataProcessingError(
"Unable to fetch data, please check the youtube url"
)
else:
# fetch playlist info
playlist.title = r.json['feed']['title']['$t']
if 'media$description' in r.json['feed'][
'media$group']:
playlist.description = escape(
r.json['feed']['media$group']
['media$description']['$t'])
for item in r.json['feed'].get('entry', []):
# If the video is private still youtube provides the title but doesn't
# provide thumbnail & urls, check for private video
is_private = item.get('app$control')
if is_private is not None and is_private[
'yt$state']['reasonCode']:
continue
video = Video(playlist=playlist)
video.title = item['title']['$t']
video.video_url = item['media$group'][
'media$player']['url']
if 'media$description' in item['media$group']:
video.description = escape(
item['media$group']['media$description']
['$t'])
for video_content in item['media$group'][
'media$thumbnail']:
if video_content['yt$name'] == 'mqdefault':
thumbnail_url_request = requests.get(
video_content['url'])
filestorage = return_werkzeug_filestorage(
thumbnail_url_request,
filename=secure_filename(
item['title']['$t']))
video.thumbnail_path = thumbnails.save(
filestorage)
video.video_sourceid = item['media$group'][
'yt$videoid']['$t']
video.video_source = u"youtube"
video.make_name()
playlist.videos.append(video)
#When no more data is present to retrieve in playlist 'feed' is absent in json
if 'entry' in r.json['feed']:
total += len(r.json['feed']['entry'])
if total <= r.json['feed'][
'openSearch$totalResults']:
# check for empty playlist
if not r.json['feed'].get('entry', []):
raise DataProcessingError("Empty Playlist")
inner(start_index=total + 1, total=total)
