bandcamp-dl/bandcamp_dl/bandcampdownloader.py

126 lines
4.5 KiB
Python

import os
import sys
import requests
from mutagen.mp3 import MP3
from mutagen.id3._frames import TIT2
from mutagen.easyid3 import EasyID3
from slugify import slugify
class BandcampDownloader:
def __init__(self, urls=None, template=None, directory=None, overwrite=False):
if type(urls) is str:
self.urls = [urls]
self.urls = urls
self.template = template
self.directory = directory
self.overwrite = overwrite
def start(self, album):
print("Starting download process.")
self.download_album(album)
def template_to_path(self, track):
path = self.template
path = path.replace("%{artist}", slugify(track['artist']))
path = path.replace("%{album}", slugify(track['album']))
path = path.replace("%{track}", str(track['track']).zfill(2))
path = path.replace("%{title}", slugify(track['title']))
path = "{0}/{1}.{2}".format(self.directory, path, "mp3")
return path
def create_directory(self, filename):
directory = os.path.dirname(filename)
if not os.path.exists(directory):
os.makedirs(directory)
return directory
def download_album(self, album):
for track_index, track in enumerate(album['tracks']):
track_meta = {
"artist": album['artist'],
"album": album['title'],
"title": track['title'],
"track": track['track'],
"date": album['date']
}
print("Accessing track " + str(track_index + 1) + " of " + str(len(album['tracks'])))
filename = self.template_to_path(track_meta)
dirname = self.create_directory(filename)
if not track.get('url'):
print("Skipping track {0} - {1} as it is not available"
.format(track['track'], track['title']))
continue
try:
track_url = track['url']
# Check and see if HTTP is in the track_url
if 'http' not in track_url:
track_url = 'http:{}'.format(track_url)
r = requests.get(track_url, stream=True)
file_length = r.headers.get('content-length')
if not self.overwrite and os.path.isfile(filename):
file_size = os.path.getsize(filename) - 128
if int(file_size) != int(file_length):
print(filename + " is incomplete, redownloading.")
os.remove(filename)
else:
print("Skipping track {0} - {1} as it's already downloaded, use --overwrite to overwrite existing files"
.format(track['track'], track['title']))
continue
with open(filename, "wb") as f:
print("Downloading: " + filename[:-4])
if file_length is None:
f.write(r.content)
else:
dl = 0
total_length = int(file_length)
for data in r.iter_content(chunk_size=int(total_length/100)):
dl += len(data)
f.write(data)
done = int(50 * dl / total_length)
sys.stdout.write("\r[%s%s]" % ('=' * done, ' ' * (50 - done)))
sys.stdout.flush()
self.write_id3_tags(filename, track_meta)
except Exception as e:
print(e)
print("Downloading failed..")
return False
if album['art']:
try:
with open(dirname + "/cover.jpg", "wb") as f:
r = requests.get(album['art'], stream=True)
f.write(r.content)
except Exception as e:
print(e)
print("Couldn't download album art.")
return True
def write_id3_tags(self, filename, meta):
print("\nEncoding . . .")
audio = MP3(filename)
audio["TIT2"] = TIT2(encoding=3, text=["title"])
audio.save(filename=None, v1=2)
audio = EasyID3(filename)
audio["tracknumber"] = meta['track']
audio["title"] = meta['title']
audio["artist"] = meta['artist']
audio["album"] = meta['album']
audio["date"] = meta['date']
audio.save()
audio.save(filename)
print("Done encoding . . .")