Files
spotify-downloader/spotdl.py
2017-07-11 20:32:26 +05:30

311 lines
10 KiB
Python
Executable File

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
from core import metadata
from core import convert
from core import misc
from bs4 import BeautifulSoup
from titlecase import titlecase
from slugify import slugify
import spotipy
import pafy
import urllib.request
import sys
import os
def generate_songname(raw_song):
"""Generate a string of the format '[artist] - [song]' for the given song."""
if misc.is_spotify(raw_song):
tags = generate_metadata(raw_song)
raw_song = u'{0} - {1}'.format(tags['artists'][0]['name'], tags['name'])
return raw_song
def generate_metadata(raw_song):
"""Fetch a song's metadata from Spotify."""
if misc.is_spotify(raw_song):
# fetch track information directly if it is spotify link
meta_tags = spotify.track(raw_song)
else:
# otherwise search on spotify and fetch information from first result
try:
meta_tags = spotify.search(raw_song, limit=1)['tracks']['items'][0]
except:
return None
artist = spotify.artist(meta_tags['artists'][0]['id'])
album = spotify.album(meta_tags['album']['id'])
try:
meta_tags[u'genre'] = titlecase(artist['genres'][0])
except IndexError:
meta_tags[u'genre'] = None
try:
meta_tags[u'copyright'] = album['copyrights'][0]['text']
except IndexError:
meta_tags[u'copyright'] = None
meta_tags[u'release_date'] = album['release_date']
meta_tags[u'publisher'] = album['label']
meta_tags[u'total_tracks'] = album['tracks']['total']
# import pprint
# pprint.pprint(meta_tags)
# pprint.pprint(spotify.album(meta_tags['album']['id']))
return meta_tags
def generate_youtube_url(raw_song):
"""Search for the song on YouTube and generate an URL to its video."""
song = generate_songname(raw_song)
search_url = misc.generate_search_url(song)
item = urllib.request.urlopen(search_url).read()
# item = unicode(item, 'utf-8')
items_parse = BeautifulSoup(item, "html.parser")
check = 1
if args.manual:
links = []
print(song)
print('')
print('0. Skip downloading this song')
# fetch all video links on first page on YouTube
for x in items_parse.find_all('h3', {'class': 'yt-lockup-title'}):
# confirm the video result is not an advertisement
if x.find('channel') is None and x.find('googleads') is None:
link = x.find('a')['href']
links.append(link)
print(u'{0}. {1} {2}'.format(check, x.get_text(), "http://youtube.com"+link))
check += 1
print('')
# let user select the song to download
result = misc.input_link(links)
if result is None:
return None
else:
# get video link of the first YouTube result
result = items_parse.find_all(
attrs={'class': 'yt-uix-tile-link'})[0]['href']
# confirm the video result is not an advertisement
# otherwise keep iterating until it is not
while result.find('channel') > -1 or result.find('googleads') > -1:
result = items_parse.find_all(
attrs={'class': 'yt-uix-tile-link'})[check]['href']
check += 1
full_link = u'youtube.com{0}'.format(result)
return full_link
def go_pafy(raw_song):
"""Parse track from YouTube."""
track_url = generate_youtube_url(raw_song)
if track_url is None:
return None
else:
return pafy.new(track_url)
def get_youtube_title(content, number=None):
"""Get the YouTube video's title."""
title = content.title
if number is None:
return title
else:
return '{0}. {1}'.format(number, title)
def feed_playlist(username):
"""Fetch user playlists when using the -u option."""
playlists = spotify.user_playlists(username)
links = []
check = 1
while True:
for playlist in playlists['items']:
# in rare cases, playlists may not be found, so playlists['next']
# is None. Skip these. Also see Issue #91.
if playlist['name'] is not None:
print(u'{0:>5}.| {1:<30} | ({2} tracks)'.format(
check, playlist['name'],
playlist['tracks']['total']))
links.append(playlist)
check += 1
if playlists['next']:
playlists = spotify.next(playlists)
else:
break
print('')
playlist = misc.input_link(links)
results = spotify.user_playlist(
playlist['owner']['id'], playlist['id'], fields='tracks,next')
print('')
text_file = u'{0}.txt'.format(slugify(playlist['name'], ok='-_()[]{}'))
print(u'Feeding {0} tracks to {1}'.format(playlist['tracks']['total'], text_file))
tracks = results['tracks']
with open(text_file, 'a') as file_out:
while True:
for item in tracks['items']:
track = item['track']
try:
file_out.write(track['external_urls']['spotify'] + '\n')
except KeyError:
print(u'Skipping track {0} by {1} (local only?)'.format(
track['name'], track['artists'][0]['name']))
# 1 page = 50 results
# check if there are more pages
if tracks['next']:
tracks = spotify.next(tracks)
else:
break
def download_song(content):
"""Download the audio file from YouTube."""
if args.input_ext == '.webm':
link = content.getbestaudio(preftype='webm')
elif args.input_ext == '.m4a':
link = content.getbestaudio(preftype='m4a')
else:
return False
if link is None:
return False
else:
music_file = misc.generate_filename(content.title)
link.download(
filepath='Music/{0}{1}'.format(music_file, args.input_ext))
return True
def check_exists(music_file, raw_song, islist=True):
"""Check if the input song already exists in the 'Music' folder."""
songs = os.listdir('Music')
for song in songs:
if song.endswith('.temp'):
os.remove(u'Music/{0}'.format(song))
continue
# check if any song with similar name is already present in Music/
umfile = misc.generate_filename(music_file)
if song.startswith(umfile):
# check if the already downloaded song has correct metadata
already_tagged = metadata.compare(song, generate_metadata(raw_song))
# if not, remove it and download again without prompt
if misc.is_spotify(raw_song) and not already_tagged:
os.remove('Music/{0}'.format(song))
return False
# do not prompt and skip the current song
# if already downloaded when using list
if islist:
return True
# if downloading only single song, prompt to re-download
else:
prompt = input('Song with same name has already been downloaded. '
'Re-download? (y/n): ').lower()
if prompt == 'y':
os.remove('Music/{0}'.format(song))
return False
else:
return True
return False
def grab_list(text_file):
"""Download all songs from the list."""
with open(text_file, 'r') as listed:
lines = (listed.read()).splitlines()
# ignore blank lines in text_file (if any)
try:
lines.remove('')
except ValueError:
pass
print(u'Total songs in list: {0} songs'.format(len(lines)))
print('')
# nth input song
number = 1
for raw_song in lines:
try:
grab_single(raw_song, number=number)
# token expires after 1 hour
except spotipy.oauth2.SpotifyOauthError:
# refresh token when it expires
new_token = misc.generate_token()
global spotify
spotify = spotipy.Spotify(auth=new_token)
grab_single(raw_song, number=number)
# detect network problems
except (urllib.request.URLError, TypeError, IOError):
lines.append(raw_song)
# remove the downloaded song from .txt
misc.trim_song(text_file)
# and append it to the last line in .txt
with open(text_file, 'a') as myfile:
myfile.write(raw_song)
print('Failed to download song. Will retry after other songs.')
continue
except KeyboardInterrupt:
misc.grace_quit()
finally:
print('')
misc.trim_song(text_file)
number += 1
def grab_single(raw_song, number=None):
"""Logic behind downloading a song."""
if number:
islist = True
else:
islist = False
content = go_pafy(raw_song)
if content is None:
return
# print '[number]. [artist] - [song]' if downloading from list
# otherwise print '[artist] - [song]'
print(get_youtube_title(content, number))
# generate file name of the song to download
music_file = misc.generate_filename(content.title)
if not check_exists(music_file, raw_song, islist=islist):
if download_song(content):
print('')
input_song = music_file + args.input_ext
output_song = music_file + args.output_ext
convert.song(input_song, output_song, avconv=args.avconv,
verbose=args.verbose)
if not args.input_ext == args.output_ext:
os.remove('Music/{0}'.format(input_song))
meta_tags = generate_metadata(raw_song)
if not args.no_metadata:
metadata.embed(output_song, meta_tags)
else:
print('No audio streams available')
class Args(object):
manual = False
input_ext = '.m4a'
output_ext = '.mp3'
args = Args()
# token is mandatory when using Spotify's API
# https://developer.spotify.com/news-stories/2017/01/27/removing-unauthenticated-calls-to-the-web-api/
token = misc.generate_token()
spotify = spotipy.Spotify(auth=token)
misc.filter_path('Music')
if __name__ == '__main__':
os.chdir(sys.path[0])
args = misc.get_arguments()
if args.song:
grab_single(raw_song=args.song)
elif args.list:
grab_list(text_file=args.list)
elif args.username:
feed_playlist(username=args.username)