esphome/esphomeyaml/dashboard/dashboard.py
Otto Winter a218e96fba
Favicon
2018-11-23 21:41:21 +01:00

532 lines
17 KiB
Python

# pylint: disable=wrong-import-position
from __future__ import print_function
import binascii
import collections
import hmac
import json
import logging
import multiprocessing
import os
import random
import subprocess
import threading
import tornado
import tornado.concurrent
import tornado.gen
import tornado.ioloop
import tornado.iostream
from tornado.log import access_log
import tornado.process
import tornado.web
import tornado.websocket
from esphomeyaml import const
from esphomeyaml.__main__ import get_serial_ports
from esphomeyaml.helpers import run_system_command
from esphomeyaml.storage_json import StorageJSON, ext_storage_path
from esphomeyaml.util import shlex_quote
# pylint: disable=unused-import, wrong-import-order
from typing import Optional # noqa
_LOGGER = logging.getLogger(__name__)
CONFIG_DIR = ''
PASSWORD_DIGEST = ''
COOKIE_SECRET = None
USING_PASSWORD = False
ON_HASSIO = False
USING_HASSIO_AUTH = True
HASSIO_MQTT_CONFIG = {}
# pylint: disable=abstract-method
class BaseHandler(tornado.web.RequestHandler):
def is_authenticated(self):
if USING_HASSIO_AUTH or USING_PASSWORD:
return self.get_secure_cookie('authenticated') == 'yes'
return True
# pylint: disable=abstract-method, arguments-differ
class EsphomeyamlCommandWebSocket(tornado.websocket.WebSocketHandler):
def __init__(self, application, request, **kwargs):
super(EsphomeyamlCommandWebSocket, self).__init__(application, request, **kwargs)
self.proc = None
self.closed = False
def on_message(self, message):
if USING_HASSIO_AUTH or USING_PASSWORD:
if self.get_secure_cookie('authenticated') != 'yes':
return
if self.proc is not None:
return
command = self.build_command(message)
_LOGGER.info(u"Running command '%s'", ' '.join(shlex_quote(x) for x in command))
self.proc = tornado.process.Subprocess(command,
stdout=tornado.process.Subprocess.STREAM,
stderr=subprocess.STDOUT)
self.proc.set_exit_callback(self.proc_on_exit)
tornado.ioloop.IOLoop.current().spawn_callback(self.redirect_stream)
@tornado.gen.coroutine
def redirect_stream(self):
while True:
try:
data = yield self.proc.stdout.read_until_regex('[\n\r]')
except tornado.iostream.StreamClosedError:
break
if data.endswith('\r') and random.randrange(100) < 90:
continue
try:
data = data.replace('\033', '\\033')
except UnicodeDecodeError:
data = data.encode('ascii', 'backslashreplace')
self.write_message({'event': 'line', 'data': data})
def proc_on_exit(self, returncode):
if not self.closed:
_LOGGER.debug("Process exited with return code %s", returncode)
self.write_message({'event': 'exit', 'code': returncode})
def on_close(self):
self.closed = True
if self.proc is not None and self.proc.returncode is None:
_LOGGER.debug("Terminating process")
self.proc.proc.terminate()
def build_command(self, message):
raise NotImplementedError
class EsphomeyamlLogsHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = CONFIG_DIR + '/' + js['configuration']
return ["esphomeyaml", config_file, "logs", '--serial-port', js["port"], '--escape']
class EsphomeyamlRunHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "run", '--upload-port', js["port"],
'--escape', '--use-esptoolpy']
class EsphomeyamlCompileHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "compile"]
class EsphomeyamlValidateHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "config"]
class EsphomeyamlCleanMqttHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "clean-mqtt"]
class EsphomeyamlCleanHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "clean"]
class EsphomeyamlHassConfigHandler(EsphomeyamlCommandWebSocket):
def build_command(self, message):
js = json.loads(message)
config_file = os.path.join(CONFIG_DIR, js['configuration'])
return ["esphomeyaml", config_file, "hass-config"]
class SerialPortRequestHandler(BaseHandler):
def get(self):
if not self.is_authenticated():
self.redirect('/login')
return
ports = get_serial_ports()
data = []
for port, desc in ports:
if port == '/dev/ttyAMA0':
desc = 'UART pins on GPIO header'
split_desc = desc.split(' - ')
if len(split_desc) == 2 and split_desc[0] == split_desc[1]:
# Some serial ports repeat their values
desc = split_desc[0]
data.append({'port': port, 'desc': desc})
data.append({'port': 'OTA', 'desc': 'Over-The-Air'})
self.write(json.dumps(sorted(data, reverse=True)))
class WizardRequestHandler(BaseHandler):
def post(self):
from esphomeyaml import wizard
if not self.is_authenticated():
self.redirect('/login')
return
kwargs = {k: ''.join(v) for k, v in self.request.arguments.iteritems()}
destination = os.path.join(CONFIG_DIR, kwargs['name'] + '.yaml')
wizard.wizard_write(path=destination, **kwargs)
self.redirect('/?begin=True')
class DownloadBinaryRequestHandler(BaseHandler):
def get(self):
if not self.is_authenticated():
self.redirect('/login')
return
configuration = self.get_argument('configuration')
storage_path = ext_storage_path(CONFIG_DIR, configuration)
storage_json = StorageJSON.load(storage_path)
if storage_json is None:
self.send_error()
return
path = storage_json.firmware_bin_path
self.set_header('Content-Type', 'application/octet-stream')
filename = '{}.bin'.format(storage_json.name)
self.set_header("Content-Disposition", 'attachment; filename="{}"'.format(filename))
with open(path, 'rb') as f:
while 1:
data = f.read(16384) # or some other nice-sized chunk
if not data:
break
self.write(data)
self.finish()
def _list_yaml_files():
files = []
for file in os.listdir(CONFIG_DIR):
if not file.endswith('.yaml'):
continue
if file.startswith('.'):
continue
if file == 'secrets.yaml':
continue
files.append(file)
files.sort()
return files
def _list_dashboard_entries():
files = _list_yaml_files()
return [DashboardEntry(file) for file in files]
class DashboardEntry(object):
def __init__(self, filename):
self.filename = filename
self._storage = None
self._loaded_storage = False
@property
def full_path(self): # type: () -> str
return os.path.join(CONFIG_DIR, self.filename)
@property
def storage(self): # type: () -> Optional[StorageJSON]
if not self._loaded_storage:
self._storage = StorageJSON.load(ext_storage_path(CONFIG_DIR, self.filename))
self._loaded_storage = True
return self._storage
@property
def address(self):
if self.storage is None:
return None
return self.storage.address
@property
def name(self):
if self.storage is None:
return self.filename[:-len('.yaml')]
return self.storage.name
@property
def esp_platform(self):
if self.storage is None:
return None
return self.storage.esp_platform
@property
def board(self):
if self.storage is None:
return None
return self.storage.board
class MainRequestHandler(BaseHandler):
def get(self):
if not self.is_authenticated():
self.redirect('/login')
return
begin = bool(self.get_argument('begin', False))
entries = _list_dashboard_entries()
version = const.__version__
docs_link = 'https://beta.esphomelib.com/esphomeyaml/' if 'b' in version else \
'https://esphomelib.com/esphomeyaml/'
mqtt_config = get_mqtt_config_lazy()
self.render("templates/index.html", entries=entries,
version=version, begin=begin, docs_link=docs_link, mqtt_config=mqtt_config)
def _ping_func(filename, address):
if os.name == 'nt':
command = ['ping', '-n', '1', address]
else:
command = ['ping', '-c', '1', address]
rc, _, _ = run_system_command(*command)
return filename, rc == 0
class PingThread(threading.Thread):
def run(self):
pool = multiprocessing.Pool(processes=8)
while not STOP_EVENT.is_set():
# Only do pings if somebody has the dashboard open
PING_REQUEST.wait()
PING_REQUEST.clear()
def callback(ret):
PING_RESULT[ret[0]] = ret[1]
entries = _list_dashboard_entries()
queue = collections.deque()
for entry in entries:
if entry.address is None:
PING_RESULT[entry.filename] = None
continue
result = pool.apply_async(_ping_func, (entry.filename, entry.address),
callback=callback)
queue.append(result)
while queue:
item = queue[0]
if item.ready():
queue.popleft()
continue
try:
item.get(0.1)
except OSError:
# ping not installed
pass
except multiprocessing.TimeoutError:
pass
if STOP_EVENT.is_set():
pool.terminate()
return
class PingRequestHandler(BaseHandler):
def get(self):
if not self.is_authenticated():
self.redirect('/login')
return
PING_REQUEST.set()
self.write(json.dumps(PING_RESULT))
PING_RESULT = {} # type: dict
STOP_EVENT = threading.Event()
PING_REQUEST = threading.Event()
class LoginHandler(BaseHandler):
def get(self):
if USING_HASSIO_AUTH:
self.render_hassio_login()
return
self.write('<html><body><form action="/login" method="post">'
'Password: <input type="password" name="password">'
'<input type="submit" value="Sign in">'
'</form></body></html>')
def render_hassio_login(self, error=None):
version = const.__version__
docs_link = 'https://beta.esphomelib.com/esphomeyaml/' if 'b' in version else \
'https://esphomelib.com/esphomeyaml/'
self.render("templates/login.html", version=version, docs_link=docs_link, error=error)
def post_hassio_login(self):
import requests
headers = {
'X-HASSIO-KEY': os.getenv('HASSIO_TOKEN'),
}
data = {
'username': str(self.get_argument('username', '')),
'password': str(self.get_argument('password', ''))
}
try:
req = requests.post('http://hassio/auth', headers=headers, data=data)
if req.status_code == 200:
self.set_secure_cookie("authenticated", "yes")
self.redirect('/')
return
except Exception as err: # pylint: disable=broad-except
_LOGGER.warn("Error during HassIO auth request: %s", err)
self.set_status(500)
self.render_hassio_login(error="Internal server error")
return
self.set_status(401)
self.render_hassio_login(error="Invalid username or password")
def post(self):
if USING_HASSIO_AUTH:
self.post_hassio_login()
return
password = str(self.get_argument("password", ''))
password = hmac.new(password).digest()
if hmac.compare_digest(PASSWORD_DIGEST, password):
self.set_secure_cookie("authenticated", "yes")
self.redirect("/")
def make_app(debug=False):
def log_function(handler):
if handler.get_status() < 400:
log_method = access_log.info
if isinstance(handler, SerialPortRequestHandler) and not debug:
return
if isinstance(handler, PingRequestHandler) and not debug:
return
elif handler.get_status() < 500:
log_method = access_log.warning
else:
log_method = access_log.error
request_time = 1000.0 * handler.request.request_time()
# pylint: disable=protected-access
log_method("%d %s %.2fms", handler.get_status(),
handler._request_summary(), request_time)
static_path = os.path.join(os.path.dirname(__file__), 'static')
app = tornado.web.Application([
(r"/", MainRequestHandler),
(r"/login", LoginHandler),
(r"/logs", EsphomeyamlLogsHandler),
(r"/run", EsphomeyamlRunHandler),
(r"/compile", EsphomeyamlCompileHandler),
(r"/validate", EsphomeyamlValidateHandler),
(r"/clean-mqtt", EsphomeyamlCleanMqttHandler),
(r"/clean", EsphomeyamlCleanHandler),
(r"/hass-config", EsphomeyamlHassConfigHandler),
(r"/download.bin", DownloadBinaryRequestHandler),
(r"/serial-ports", SerialPortRequestHandler),
(r"/ping", PingRequestHandler),
(r"/wizard.html", WizardRequestHandler),
(r'/static/(.*)', tornado.web.StaticFileHandler, {'path': static_path}),
], debug=debug, cookie_secret=COOKIE_SECRET, log_function=log_function)
return app
def _get_mqtt_config_impl():
import requests
headers = {
'X-HASSIO-KEY': os.getenv('HASSIO_TOKEN'),
}
req = requests.get('http://hassio/services/mqtt', headers=headers)
mqtt_config = req.json()
return {
'addon': mqtt_config['addon'],
'host': mqtt_config['host'],
'username': mqtt_config.get('username', ''),
'password': mqtt_config.get('password', '')
}
def get_mqtt_config_lazy():
global HASSIO_MQTT_CONFIG
if not ON_HASSIO or HASSIO_MQTT_CONFIG is None:
return None
if not HASSIO_MQTT_CONFIG:
try:
HASSIO_MQTT_CONFIG = _get_mqtt_config_impl()
except Exception: # pylint: disable=broad-except
HASSIO_MQTT_CONFIG = None
return HASSIO_MQTT_CONFIG
def start_web_server(args):
global CONFIG_DIR
global PASSWORD_DIGEST
global USING_PASSWORD
global ON_HASSIO
global USING_HASSIO_AUTH
global COOKIE_SECRET
CONFIG_DIR = args.configuration
if not os.path.exists(CONFIG_DIR):
os.makedirs(CONFIG_DIR)
ON_HASSIO = args.hassio
if ON_HASSIO:
USING_HASSIO_AUTH = not bool(os.getenv('DISABLE_HA_AUTHENTICATION'))
USING_PASSWORD = False
else:
USING_HASSIO_AUTH = False
USING_PASSWORD = args.password
if USING_PASSWORD:
PASSWORD_DIGEST = hmac.new(args.password).digest()
if USING_HASSIO_AUTH or USING_PASSWORD:
cookie_secret_path = os.path.join(CONFIG_DIR, '.esphomeyaml', 'cookie_secret')
if os.path.exists(cookie_secret_path):
with open(cookie_secret_path, 'r') as f:
COOKIE_SECRET = f.read()
else:
COOKIE_SECRET = binascii.hexlify(os.urandom(64))
with open(cookie_secret_path, 'w') as f:
f.write(COOKIE_SECRET)
_LOGGER.info("Starting dashboard web server on port %s and configuration dir %s...",
args.port, CONFIG_DIR)
app = make_app(args.verbose)
app.listen(args.port)
if args.open_ui:
import webbrowser
webbrowser.open('localhost:{}'.format(args.port))
ping_thread = PingThread()
ping_thread.start()
try:
tornado.ioloop.IOLoop.current().start()
except KeyboardInterrupt:
_LOGGER.info("Shutting down...")
STOP_EVENT.set()
PING_REQUEST.set()
ping_thread.join()