e0e13ac59e
Also introduce zip uploads and store the remaining relevant data, implemention of that still pending
139 lines
4.3 KiB
Python
139 lines
4.3 KiB
Python
"""Friendly reminder that if you want to host this somewhere on the internet, that it's licensed under MIT Berserker66
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So unless you're Berserker you need to include license information."""
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import os
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import logging
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import typing
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import multiprocessing
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import threading
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from pony.flask import Pony
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from flask import Flask, request, redirect, url_for, render_template, Response, session, abort
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from flask_caching import Cache
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from flaskext.autoversion import Autoversion
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from .models import *
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UPLOAD_FOLDER = os.path.relpath('uploads')
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LOGS_FOLDER = os.path.relpath('logs')
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os.makedirs(LOGS_FOLDER, exist_ok=True)
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def allowed_file(filename):
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return filename.endswith(('multidata', ".zip"))
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app = Flask(__name__)
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Pony(app)
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app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
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app.config['MAX_CONTENT_LENGTH'] = 4 * 1024 * 1024 # 4 megabyte limit
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# if you want persistent sessions on your server, make sure you make this a constant in your config.yaml
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app.config["SECRET_KEY"] = os.urandom(32)
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app.config['SESSION_PERMANENT'] = True
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app.config[
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"WAITRESS_THREADS"] = 10 # waitress uses one thread for I/O, these are for processing of views that then get sent
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app.config["PONY"] = {
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'provider': 'sqlite',
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'filename': os.path.abspath('db.db3'),
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'create_db': True
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}
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app.config["CACHE_TYPE"] = "simple"
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app.autoversion = True
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av = Autoversion(app)
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cache = Cache(app)
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# this local cache is risky business if app hosting is done with subprocesses as it will not sync. Waitress is fine though
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multiworlds = {}
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@app.before_request
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def register_session():
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session.permanent = True # technically 31 days after the last visit
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if not session.get("_id", None):
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session["_id"] = uuid4() # uniquely identify each session without needing a login
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class MultiworldInstance():
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def __init__(self, room: Room):
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self.room_id = room.id
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self.process: typing.Optional[multiprocessing.Process] = None
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multiworlds[self.room_id] = self
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def start(self):
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if self.process and self.process.is_alive():
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return False
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logging.info(f"Spinning up {self.room_id}")
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with db_session:
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self.process = multiprocessing.Process(group=None, target=run_server_process,
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args=(self.room_id, app.config["PONY"]),
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name="MultiHost")
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self.process.start()
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def stop(self):
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if self.process:
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self.process.terminate()
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self.process = None
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@app.route('/seed/<uuid:seed>')
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def view_seed(seed: UUID):
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seed = Seed.get(id=seed)
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if not seed:
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abort(404)
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return render_template("view_seed.html", seed=seed,
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rooms=[room for room in seed.rooms if room.owner == session["_id"]])
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@app.route('/new_room/<uuid:seed>')
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def new_room(seed: UUID):
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seed = Seed.get(id=seed)
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if not seed:
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abort(404)
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room = Room(seed=seed, owner=session["_id"], tracker=uuid4())
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commit()
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return redirect(url_for("host_room", room=room.id))
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def _read_log(path: str):
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if os.path.exists(path):
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with open(path, encoding="utf-8-sig") as log:
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yield from log
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else:
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yield f"Logfile {path} does not exist. " \
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f"Likely a crash during spinup of multiworld instance or it is still spinning up."
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@app.route('/log/<uuid:room>')
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def display_log(room: UUID):
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# noinspection PyTypeChecker
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return Response(_read_log(os.path.join("logs", str(room) + ".txt")), mimetype="text/plain;charset=UTF-8")
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processstartlock = threading.Lock()
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@app.route('/hosted/<uuid:room>', methods=['GET', 'POST'])
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def host_room(room: UUID):
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room = Room.get(id=room)
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if room is None:
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return abort(404)
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if request.method == "POST":
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if room.owner == session["_id"]:
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cmd = request.form["cmd"]
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Command(room=room, commandtext=cmd)
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commit()
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with db_session:
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multiworld = multiworlds.get(room.id, None)
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if not multiworld:
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multiworld = MultiworldInstance(room)
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with processstartlock:
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multiworld.start()
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return render_template("host_room.html", room=room)
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from WebHost.customserver import run_server_process
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from . import tracker, upload # to trigger app routing picking up on it
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