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"""
a web dashboard for lab-bot
"""
import os
import logging
import json
import time
from functools import wraps
import aiohttp
import jinja2
import aiohttp_jinja2 # type: ignore
from itsdangerous.url_safe import URLSafeSerializer
from itsdangerous.exc import BadSignature
from labbot import __version__ as labbot_version
from labbot.config import Config
log = logging.getLogger(__name__)
config = Config(__name__)
config.set_global_data(
accounts={
"admin":"admin"
},
secret="secret",
salt="salt123"
)
class BufferHandler(logging.Handler):
def __init__(self, lines=-1):
super().__init__(level=logging.DEBUG)
self.log_buffer = []
self.lines = lines
def emit(self, record):
try:
msg = self.format(record)
return self.log_buffer.append(msg)
finally:
if self.lines > 0:
while len(self.log_buffer) > self.lines:
self.log_buffer.remove(0)
auth_s = URLSafeSerializer(config["secret"], config["salt"])
def check_auth():
def decorator(func):
@wraps(func)
async def wrapper(*args, **kwargs):
full_kwargs = kwargs.copy()
full_kwargs.update(zip(func.__code__.co_varnames, args))
try:
request = full_kwargs["coro"]
except KeyError:
try:
request = full_kwargs["args"]
except KeyError:
request = full_kwargs["request"]
try:
session = request.cookies["session"]
data = auth_s.loads(session)
return await func(*args, **kwargs)
except (KeyError, BadSignature):
resp = aiohttp.web.HTTPFound(
location='/login',
headers=request.headers
)
resp.del_cookie("session")
raise resp
return wrapper
return decorator
def set_auth():
def decorator(func):
@wraps(func)
async def wrapper(*args, **kwargs):
full_kwargs = kwargs.copy()
full_kwargs.update(zip(func.__code__.co_varnames, args))
try:
request = full_kwargs["coro"]
except KeyError:
try:
request = full_kwargs["args"]
except KeyError:
request = full_kwargs["request"]
if request.method == "POST":
data = await request.post()
try:
username = data["username"]
password = data["password"]
if config["accounts"].get(username, "") == password:
resp = aiohttp.web.HTTPFound(
location='/',
headers=request.headers
)
resp.set_cookie("session", auth_s.dumps({"time": time.time(), "username": username}), max_age=300)
raise resp
except KeyError:
pass
return await func(*args, **kwargs)
return wrapper
return decorator
class Dashboard:
def __init__(self, bot):
self.bot = bot
self.app = self.bot.instance.app
formatter = logging.Formatter(
"[{asctime}] [{levelname}] {name}: {message}", datefmt="%Y-%m-%d %H:%M:%S", style="{"
)
self.buffer_handler = BufferHandler()
self.buffer_handler.setFormatter(formatter)
root_logger = logging.getLogger()
root_logger.addHandler(self.buffer_handler)
del root_logger
dashboard_dir = os.path.join(os.path.dirname(__file__), "templates")
aiohttp_jinja2.setup(
self.app,
context_processors=[self.processor],
loader=jinja2.FileSystemLoader(dashboard_dir))
self.pages = [
["/", self.dashboard],
["/log", self.log],
["/settings", self.settings],
]
for addon in self.bot.addons:
self.pages.append([f"/settings/{addon}", self.addon_settings(addon)])
for page in self.pages:
endpoint, func = page
self.app.router.add_get(endpoint, func)
self.app.router.add_get("/login", self.login)
self.app.router.add_post("/login", self.login)
self.app.router.add_get("/logout", self.logout)
@check_auth()
@aiohttp_jinja2.template('index.html')
async def dashboard(self, request: aiohttp.web.Request) -> dict:
return {}
@check_auth()
@aiohttp_jinja2.template('log.html')
async def log(self, request: aiohttp.web.Request) -> dict:
return {}
@check_auth()
@aiohttp_jinja2.template('settings.html')
async def settings(self, request: aiohttp.web.Request) -> dict:
return {}
def addon_settings(self, addon):
@check_auth()
@aiohttp_jinja2.template('addon_settings.html')
async def _settings(request: aiohttp.web.Request) -> dict:
c = Config(addon, self.bot.name)
return {
"addon_settings": c.settings
}
return _settings
@set_auth()
@aiohttp_jinja2.template('login.html')
async def login(self, request: aiohttp.web.Request) -> dict:
return {}
@check_auth()
async def logout(self, request: aiohttp.web.Request):
resp = aiohttp.web.HTTPFound(
location='/login',
headers=request.headers
)
resp.del_cookie("session")
return resp
async def processor(self, request) -> dict:
return {
"bot": {
"name": self.bot.name,
"version": labbot_version,
"addons": self.bot.addons,
"config": self.bot.config,
"log": "\n".join(self.buffer_handler.log_buffer)
}
}
async def event_processor(self, *args, **kwargs):
self.event_counter += 1
def setup(bot):
config.setup(__name__, bot.name)
config.save()
Dashboard(bot)
|
