import logging, coloredlogs from typing import Any, Dict, List from twisted.web import resource from twisted.web.util import redirectTo from twisted.web.http import Request from logging.handlers import TimedRotatingFileHandler from twisted.web.server import Session from zope.interface import Interface, Attribute, implementer from twisted.python.components import registerAdapter import jinja2 import bcrypt from core import CoreConfig, Utils from core.data import Data class IUserSession(Interface): userId = Attribute("User's ID") current_ip = Attribute("User's current ip address") permissions = Attribute("User's permission level") @implementer(IUserSession) class UserSession(object): def __init__(self, session): self.userId = 0 self.current_ip = "0.0.0.0" self.permissions = 0 class FrontendServlet(resource.Resource): def getChild(self, name: bytes, request: Request): self.logger.debug(f"{Utils.get_ip_addr(request)} -> {name.decode()}") if name == b"": return self return resource.Resource.getChild(self, name, request) def __init__(self, cfg: CoreConfig, config_dir: str) -> None: self.config = cfg log_fmt_str = "[%(asctime)s] Frontend | %(levelname)s | %(message)s" log_fmt = logging.Formatter(log_fmt_str) self.logger = logging.getLogger("frontend") self.environment = jinja2.Environment(loader=jinja2.FileSystemLoader(".")) self.game_list: List[Dict[str, str]] = [] self.children: Dict[str, Any] = {} fileHandler = TimedRotatingFileHandler( "{0}/{1}.log".format(self.config.server.log_dir, "frontend"), when="d", backupCount=10, ) fileHandler.setFormatter(log_fmt) consoleHandler = logging.StreamHandler() consoleHandler.setFormatter(log_fmt) self.logger.addHandler(fileHandler) self.logger.addHandler(consoleHandler) self.logger.setLevel(cfg.frontend.loglevel) coloredlogs.install( level=cfg.frontend.loglevel, logger=self.logger, fmt=log_fmt_str ) registerAdapter(UserSession, Session, IUserSession) fe_game = FE_Game(cfg, self.environment) games = Utils.get_all_titles() for game_dir, game_mod in games.items(): if hasattr(game_mod, "frontend"): try: game_fe = game_mod.frontend(cfg, self.environment, config_dir) self.game_list.append({"url": game_dir, "name": game_fe.nav_name}) fe_game.putChild(game_dir.encode(), game_fe) except Exception as e: self.logger.error( f"Failed to import frontend from {game_dir} because {e}" ) self.environment.globals["game_list"] = self.game_list self.putChild(b"gate", FE_Gate(cfg, self.environment)) self.putChild(b"user", FE_User(cfg, self.environment)) self.putChild(b"game", fe_game) self.logger.info( f"Ready on port {self.config.frontend.port} serving {len(fe_game.children)} games" ) def render_GET(self, request): self.logger.debug(f"{Utils.get_ip_addr(request)} -> {request.uri.decode()}") template = self.environment.get_template("core/frontend/index.jinja") return template.render( server_name=self.config.server.name, title=self.config.server.name, game_list=self.game_list, sesh=vars(IUserSession(request.getSession())), ).encode("utf-16") class FE_Base(resource.Resource): """ A Generic skeleton class that all frontend handlers should inherit from Initializes the environment, data, logger, config, and sets isLeaf to true It is expected that game implementations of this class overwrite many of these """ isLeaf = True def __init__(self, cfg: CoreConfig, environment: jinja2.Environment) -> None: self.core_config = cfg self.data = Data(cfg) self.logger = logging.getLogger("frontend") self.environment = environment self.nav_name = "nav_name" class FE_Gate(FE_Base): def render_GET(self, request: Request): self.logger.debug(f"{Utils.get_ip_addr(request)} -> {request.uri.decode()}") uri: str = request.uri.decode() sesh = request.getSession() usr_sesh = IUserSession(sesh) if usr_sesh.userId > 0: return redirectTo(b"/user", request) if uri.startswith("/gate/create"): return self.create_user(request) if b"e" in request.args: try: err = int(request.args[b"e"][0].decode()) except: err = 0 else: err = 0 template = self.environment.get_template("core/frontend/gate/gate.jinja") return template.render( title=f"{self.core_config.server.name} | Login Gate", error=err, sesh=vars(usr_sesh), ).encode("utf-16") def render_POST(self, request: Request): uri = request.uri.decode() ip = Utils.get_ip_addr(request) if uri == "/gate/gate.login": access_code: str = request.args[b"access_code"][0].decode() passwd: bytes = request.args[b"passwd"][0] if passwd == b"": passwd = None uid = self.data.card.get_user_id_from_card(access_code) if uid is None: return redirectTo(b"/gate?e=1", request) if passwd is None: sesh = self.data.user.check_password(uid) if sesh is not None: return redirectTo( f"/gate/create?ac={access_code}".encode(), request ) return redirectTo(b"/gate?e=1", request) if not self.data.user.check_password(uid, passwd): return redirectTo(b"/gate?e=1", request) self.logger.info(f"Successful login of user {uid} at {ip}") sesh = request.getSession() usr_sesh = IUserSession(sesh) usr_sesh.userId = uid usr_sesh.current_ip = ip return redirectTo(b"/user", request) elif uri == "/gate/gate.create": access_code: str = request.args[b"access_code"][0].decode() username: str = request.args[b"username"][0] email: str = request.args[b"email"][0].decode() passwd: bytes = request.args[b"passwd"][0] uid = self.data.card.get_user_id_from_card(access_code) if uid is None: return redirectTo(b"/gate?e=1", request) salt = bcrypt.gensalt() hashed = bcrypt.hashpw(passwd, salt) result = self.data.user.create_user( uid, username, email, hashed.decode(), 1 ) if result is None: return redirectTo(b"/gate?e=3", request) if not self.data.user.check_password(uid, passwd): return redirectTo(b"/gate", request) return redirectTo(b"/user", request) else: return b"" def create_user(self, request: Request): if b"ac" not in request.args or len(request.args[b"ac"][0].decode()) != 20: return redirectTo(b"/gate?e=2", request) ac = request.args[b"ac"][0].decode() template = self.environment.get_template("core/frontend/gate/create.jinja") return template.render( title=f"{self.core_config.server.name} | Create User", code=ac, sesh={"userId": 0}, ).encode("utf-16") class FE_User(FE_Base): def render_GET(self, request: Request): template = self.environment.get_template("core/frontend/user/index.jinja") sesh: Session = request.getSession() usr_sesh = IUserSession(sesh) if usr_sesh.userId == 0: return redirectTo(b"/gate", request) cards = self.data.card.get_user_cards(usr_sesh.userId) user = self.data.user.get_user(usr_sesh.userId) card_data = [] for c in cards: if c['is_locked']: status = 'Locked' elif c['is_banned']: status = 'Banned' else: status = 'Active' card_data.append({'access_code': c['access_code'], 'status': status}) return template.render( title=f"{self.core_config.server.name} | Account", sesh=vars(usr_sesh), cards=card_data, username=user['username'] ).encode("utf-16") class FE_Game(FE_Base): isLeaf = False children: Dict[str, Any] = {} def getChild(self, name: bytes, request: Request): if name == b"": return self return resource.Resource.getChild(self, name, request) def render_GET(self, request: Request) -> bytes: return redirectTo(b"/user", request)