bragi/interface.py
2020-02-05 15:25:38 +08:00

332 lines
13 KiB
Python

#!/usr/bin/python3
from functools import wraps
from flask import Flask, render_template, request, redirect, send_file, Response, jsonify
import variables as var
import util
from datetime import datetime
import os
import os.path
import shutil
import random
from werkzeug.utils import secure_filename
import errno
import media
import logging
import time
class ReverseProxied(object):
'''Wrap the application in this middleware and configure the
front-end server to add these headers, to let you quietly bind
this to a URL other than / and to an HTTP scheme that is
different than what is used locally.
In nginx:
location /myprefix {
proxy_pass http://192.168.0.1:5001;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Script-Name /myprefix;
}
:param app: the WSGI application
'''
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
script_name = environ.get('HTTP_X_SCRIPT_NAME', '')
if script_name:
environ['SCRIPT_NAME'] = script_name
path_info = environ['PATH_INFO']
if path_info.startswith(script_name):
environ['PATH_INFO'] = path_info[len(script_name):]
scheme = environ.get('HTTP_X_SCHEME', '')
if scheme:
environ['wsgi.url_scheme'] = scheme
real_ip = environ.get('HTTP_X_REAL_IP', '')
if real_ip:
environ['REMOTE_ADDR'] = real_ip
return self.app(environ, start_response)
web = Flask(__name__)
def init_proxy():
global web
if var.is_proxified:
web.wsgi_app = ReverseProxied(web.wsgi_app)
# https://stackoverflow.com/questions/29725217/password-protect-one-webpage-in-flask-app
def check_auth(username, password):
"""This function is called to check if a username /
password combination is valid.
"""
return username == var.config.get("webinterface", "user") and password == var.config.get("webinterface", "password")
def authenticate():
"""Sends a 401 response that enables basic auth"""
logging.info("Web Interface login failed.")
return Response(
'Could not verify your access level for that URL.\n'
'You have to login with proper credentials', 401,
{'WWW-Authenticate': 'Basic realm="Login Required"'})
def requires_auth(f):
@wraps(f)
def decorated(*args, **kwargs):
auth = request.authorization
if var.config.getboolean("webinterface", "require_auth") and (not auth or not check_auth(auth.username, auth.password)):
if auth:
logging.info("Web Interface login attempt, user: %s" % auth.username)
return authenticate()
return f(*args, **kwargs)
return decorated
@web.route("/", methods=['GET'])
@requires_auth
def index():
folder_path = var.music_folder
files = util.get_recursive_filelist_sorted(var.music_folder)
music_library = util.Dir(folder_path)
for file in files:
music_library.add_file(file)
return render_template('index.html',
all_files=files,
music_library=music_library,
os=os,
playlist=var.playlist,
user=var.user
)
@web.route("/playlist", methods=['GET'])
@requires_auth
def playlist():
if var.playlist.length() == 0:
return jsonify([render_template('playlist.html',
m=False,
index=-1
)]
)
data = []
for index, item in enumerate(var.playlist.playlist):
data.append(render_template('playlist.html',
index=index,
m=item,
playlist=var.playlist
)
)
return jsonify(data)
@web.route("/post", methods=['POST'])
@requires_auth
def post():
if request.method == 'POST':
logging.debug("Post request: "+ str(request.form))
if 'add_file_bottom' in request.form and ".." not in request.form['add_file_bottom']:
path = var.config.get('bot', 'music_folder') + request.form['add_file_bottom']
if os.path.isfile(path):
item = {'type': 'file',
'path' : request.form['add_file_bottom'],
'title' : 'Unknown',
'user' : 'Web'}
var.playlist.append(var.botamusique.get_music_tag_info(item, path))
logging.info('web: add to playlist(bottom): ' + item['path'])
elif 'add_file_next' in request.form and ".." not in request.form['add_file_next']:
path = var.config.get('bot', 'music_folder') + request.form['add_file_next']
if os.path.isfile(path):
item = {'type': 'file',
'path' : request.form['add_file_next'],
'title' : 'Unknown',
'user' : 'Web'}
var.playlist.insert(
var.playlist.current_index + 1,
var.botamusique.get_music_tag_info(item, var.config.get('bot', 'music_folder') + item['path'])
)
logging.info('web: add to playlist(next): ' + item['path'])
elif ('add_folder' in request.form and ".." not in request.form['add_folder']) or ('add_folder_recursively' in request.form and ".." not in request.form['add_folder_recursively']):
try:
folder = request.form['add_folder']
except:
folder = request.form['add_folder_recursively']
if not folder.endswith('/'):
folder += '/'
print('folder:', folder)
if os.path.isdir(var.config.get('bot', 'music_folder') + folder):
if 'add_folder_recursively' in request.form:
files = music_library.get_files_recursively(folder)
else:
files = music_library.get_files(folder)
files = list(map(lambda file: var.botamusique.get_music_tag_info({'type':'file','path': os.path.join(folder, file), 'user':'Web'}, \
var.config.get('bot', 'music_folder') + os.path.join(folder, file)), files))
logging.info("web: add to playlist: " + " ,".join([file['path'] for file in files]))
var.playlist.extend(files)
elif 'add_url' in request.form:
var.playlist.append({'type':'url',
'url': request.form['add_url'],
'user': 'Web',
'ready': 'validation'})
logging.info("web: add to playlist: " + request.form['add_url'])
media.url.get_url_info()
var.playlist.playlist[-1]['ready'] = "no"
elif 'add_radio' in request.form:
var.playlist.append({'type': 'radio',
'path': request.form['add_radio'],
'user': "Web"})
logging.info("web: add to playlist: " + request.form['add_radio'])
elif 'delete_music' in request.form:
logging.info("web: delete from playlist: " + var.playlist.playlist[int(request.form['delete_music'])]['path'])
if len(var.playlist.playlist) >= int(request.form['delete_music']):
if var.playlist.current_index == int(request.form['delete_music']):
var.botamusique.pause()
var.playlist.remove(int(request.form['delete_music']))
var.botamusique.launch_music()
else:
var.playlist.remove(int(request.form['delete_music']))
elif 'play_music' in request.form:
logging.info("web: jump to: " + var.playlist.playlist[int(request.form['play_music'])]['path'])
if len(var.playlist.playlist) >= int(request.form['play_music']):
var.botamusique.pause()
var.botamusique.launch_music(int(request.form['play_music']))
elif 'delete_music_file' in request.form and ".." not in request.form['delete_music_file']:
path = var.config.get('bot', 'music_folder') + request.form['delete_music_file']
if os.path.isfile(path):
logging.info("web: delete file " + path)
os.remove(path)
elif 'delete_folder' in request.form and ".." not in request.form['delete_folder']:
path = var.config.get('bot', 'music_folder') + request.form['delete_folder']
if os.path.isdir(path):
logging.info("web: delete folder " + path)
shutil.rmtree(path)
time.sleep(0.1)
elif 'action' in request.form:
action = request.form['action']
if action == "randomize":
var.playlist.randomize()
elif action == "stop":
var.botamusique.pause()
elif action == "clear":
var.botamusique.stop()
elif action == "volume_up":
if var.botamusique.volume + 0.03 < 1.0:
var.botamusique.volume = var.botamusique.volume + 0.03
else:
var.botamusique.volume = 1.0
logging.info("web: volume up to %d" % (var.botamusique.volume * 100))
elif action == "volume_down":
if var.botamusique.volume - 0.03 > 0:
var.botamusique.volume = var.botamusique.volume - 0.03
else:
var.botamusique.volume = 0
logging.info("web: volume down to %d" % (var.botamusique.volume * 100))
return jsonify({'ver': var.playlist.version})
@web.route('/upload', methods=["POST"])
def upload():
file = request.files['file']
if not file:
return redirect("./", code=406)
#filename = secure_filename(file.filename).strip()
filename = file.filename
if filename == '':
return redirect("./", code=406)
targetdir = request.form['targetdir'].strip()
if targetdir == '':
targetdir = 'uploads/'
elif '../' in targetdir:
return redirect("./", code=406)
logging.info('Uploading file:')
logging.info(' - filename: ' + filename)
logging.info(' - targetdir: ' + targetdir)
logging.info(' - mimetype: ' + file.mimetype)
if "audio" in file.mimetype:
storagepath = os.path.abspath(os.path.join(var.music_folder, targetdir))
print('storagepath:',storagepath)
if not storagepath.startswith(os.path.abspath(var.music_folder)):
return redirect("./", code=406)
try:
os.makedirs(storagepath)
except OSError as ee:
if ee.errno != errno.EEXIST:
return redirect("./", code=500)
filepath = os.path.join(storagepath, filename)
logging.info(' - filepath: ' + filepath)
if os.path.exists(filepath):
return redirect("./", code=406)
file.save(filepath)
return redirect("./", code=302)
else:
return redirect("./", code=409)
@web.route('/download', methods=["GET"])
def download():
if 'file' in request.args:
requested_file = request.args['file']
if '../' not in requested_file:
folder_path = var.music_folder
files = util.get_recursive_filelist_sorted(var.music_folder)
if requested_file in files:
filepath = os.path.join(folder_path, requested_file)
try:
return send_file(filepath, as_attachment=True)
except Exception as e:
self.log.exception(e)
self.Error(400)
elif 'directory' in request.args:
requested_dir = request.args['directory']
folder_path = var.music_folder
requested_dir_fullpath = os.path.abspath(os.path.join(folder_path, requested_dir)) + '/'
if requested_dir_fullpath.startswith(folder_path):
if os.path.samefile(requested_dir_fullpath, folder_path):
prefix = 'all'
else:
prefix = secure_filename(os.path.relpath(requested_dir_fullpath, folder_path))
zipfile = util.zipdir(requested_dir_fullpath, prefix)
try:
return send_file(zipfile, as_attachment=True)
except Exception as e:
self.log.exception(e)
self.Error(400)
return redirect("./", code=400)
if __name__ == '__main__':
web.run(port=8181, host="127.0.0.1")