Musik/musik.py

141 lines
3.5 KiB
Python
Executable File

#!/usr/bin/env python3
"""
Music streaming.
"""
import os
import re
import json
import random
import subprocess
from urllib import parse
from collections import defaultdict
from flask import Flask, Response, render_template, send_file
from werkzeug.utils import secure_filename
MUSIC_DIR = "/mnt/music/Music"
MUSIC_EXT = ['flac', 'mp3', 'wav', 'm4a']
FFMPEG_CMD = [
'ffmpeg', '-y',
'-loglevel', 'panic',
'-i', '',
'-codec:a', 'libopus',
'-b:a', '64k',
'-f', 'opus',
'-'
]
def build_tree(root_dir):
"""Walks the music directory and builds a tree."""
print("Building tree.")
tree = defaultdict(dict)
for dirName, subDirs, files in os.walk(root_dir):
if dirName == root_dir:
continue
reg = re.search(".*/(.+?) - (.+) \(\d{4}\)", dirName)
if not reg:
print(dirName)
continue
artist, album = reg.groups()
tracks = [f for f in files if f.rpartition('.')[2] in MUSIC_EXT]
tree[artist][album] = tracks
return tree
app = Flask(__name__)
@app.route('/')
def index():
"""Main index page."""
nav_items = os.listdir(MUSIC_DIR)
nav_items.sort()
nav_items = [item + '/' for item in nav_items]
initial_track = "/Accept/Accept - Balls to the Wall (1983) [FLAC] {74321 93214 2}/01 - Balls to the Wall.flac"
initial_cover = "/Accept/Accept - Balls to the Wall (1983) [FLAC] {74321 93214 2}/folder.jpg"
cd = "/"
return render_template('index.html', **locals())
@app.route('/stream/<path:track>')
def stream(track):
"""View for the raw audio file."""
track = parse.unquote(track)
path = os.path.join(MUSIC_DIR, track)
path = os.path.abspath(path)
if not path.startswith(MUSIC_DIR):
return "False"
if not os.path.isfile(path):
return "False"
FFMPEG_CMD[5] = path
def generate():
with subprocess.Popen(FFMPEG_CMD, stdout=subprocess.PIPE) as proc:
data = proc.stdout.read(1024)
while data:
yield data
data = proc.stdout.read(1024)
return Response(generate(), mimetype="audio/ogg")
@app.route('/get_dir/<path:directory>/')
@app.route('/get_dir/')
def get_dir(directory=""):
"""Returns the contents of the requested directory."""
directory = directory.replace("DOTDOT", "..")
directory = os.path.join(MUSIC_DIR, directory)
directory = os.path.abspath(directory)
if not directory.startswith(MUSIC_DIR):
return "False"
if not os.path.isdir(directory):
return "False"
nav_items = os.listdir(directory)
nav_items.sort()
if directory != MUSIC_DIR:
nav_items = [".."] + nav_items
nav_items_new = []
for item in nav_items:
if os.path.isdir(os.path.join(directory, item)):
item += '/'
nav_items_new.append(item)
nav_items_new = [directory.replace(MUSIC_DIR, '') + '/'] + nav_items_new
return json.dumps(nav_items_new)
@app.route('/get_shuffle')
def shuffle():
"""Returns a randomly selected track from the library."""
item = random.choice(os.listdir(MUSIC_DIR))
path = os.path.join(MUSIC_DIR, item)
n = 0
while not item.rpartition('.')[2] in MUSIC_EXT:
n += 1
item = random.choice(os.listdir(path))
if os.path.isdir(os.path.join(path, item)):
path = os.path.join(path, item)
if n == 5:
item = random.choice(os.listdir(MUSIC_DIR))
path = os.path.join(MUSIC_DIR, item)
n = 0
path = os.path.join(path, item)
return path.replace(MUSIC_DIR, '')
@app.route('/album_cover/<path:cover>')
def album_cover(cover):
"""View for the raw audio file."""
path = os.path.join(MUSIC_DIR, cover)
path = os.path.abspath(path)
if not path.startswith(MUSIC_DIR):
return "False"
if not os.path.isfile(path):
return "False"
return send_file(path)
if __name__ == "__main__":
app.run(host='0.0.0.0', port=5150)