Script to assign title and artist tags to mp3 files of songs downloaded from Geometry Dash. Requires modules eyed3 for mp3 tag processing and wget for the redownload option.

tag_gd_songs.py

#!/usr/bin/python3

from http.client import HTTPConnection
from urllib.parse import urlencode, unquote
import os
from os.path import sep
import eyed3
from argparse import ArgumentParser

def parse_args():
	argparser = ArgumentParser()
	argparser.add_argument('path_to_gd_songs')
	argparser.add_argument('-r', '--redownload',
			action='store_const',
			const=True,
			help='Re-download the MP3 files and apply tags on a fresh file')
	return argparser.parse_args()

def fetch_song(songID):
	conn = HTTPConnection('www.boomlings.com')
	headers = { 'Content-Type': 'application/x-www-form-urlencoded' }
	params = { 'secret': 'Wmfd2893gb7', 'songID': songID  }
	conn.request('POST', '/database/getGJSongInfo.php', urlencode(params), headers)
	try:
		return conn.getresponse().read().decode()
	except:
		print('Warning: network request failed for song ' + songID)
		return None
	finally:
		conn.close()

def parse_response(response):
	if not response or response == '-1' or response == '-2':
		return None
	else:
		tokens = response.split('~|~')
		result = {}
		fields = {
			'1': 'id',
			'2': 'title',
			'3': 'unknown_3',
			'4': 'artist',
			'5': 'size',
			'6': 'unknown_6',
			'7': 'unknown_7',
			'10': 'url'
		}
		for i in range(len(tokens)):
			if i % 2 == 0:
				if i + 1 < len(tokens):
					result[fields[tokens[i]]] = tokens[i + 1]
				else:
					result[fields[tokens[i]]] = ''
		return result

def fix_encoding(text):
	try:
		return text.encode('cp1252').decode('utf8')
	except:
		return text

def redownload_song(path, song):
	os.remove(path)
	import wget
	print('Downloading song ' + song['id'] + '...')
	wget.download(unquote(song['url']), path)
	print()

if __name__ == '__main__':
	args = parse_args()

	successCount = 0
	for filename in os.listdir(args.path_to_gd_songs):
		if not filename.endswith('.mp3'):
			continue
		fullPath = args.path_to_gd_songs + sep + filename
		songID = filename[:-4]
		song = parse_response(fetch_song(songID))
		if not song:
			continue
		if args.redownload:
			redownload_song(fullPath, song)
		mp3 = eyed3.load(fullPath)
		mp3.initTag()
		mp3.tag.version = (2, 4, 0)
		mp3.tag.title = fix_encoding(song['title'])
		mp3.tag.artist = fix_encoding(song['artist'])
		mp3.tag.album = 'Newgrounds'
		try:
			mp3.tag.save()
			print('Saved tags for ' + filename)
			successCount += 1
		except:
			print('Warning: could not save tags for ' + filename)

	print('Operation complete! Successfully updated tags for ' + str(successCount) + ' songs')