from django.http.response import HttpResponseRedirect from django.utils.translation import ugettext_lazy as _ from urllib.parse import urlencode from django.views import View from django.conf import settings from django.http.request import HttpRequest from django.db.utils import IntegrityError from rest_framework.permissions import IsAuthenticated, AllowAny from rest_framework.exceptions import APIException from users.permissions import IsAuthConfirmTimeValid from users.views import UserVerifyPasswordView from users.models import User from common.utils import get_logger, FlashMessageUtil from common.utils.random import random_string from common.utils.django import reverse, get_object_or_none from common.mixins.views import PermissionsMixin from common.sdk.im.feishu import FeiShu, URL from common.utils.common import get_request_ip from authentication import errors from authentication.mixins import AuthMixin from authentication.notifications import OAuthBindMessage logger = get_logger(__file__) FEISHU_STATE_SESSION_KEY = '_feishu_state' class FeiShuQRMixin(PermissionsMixin, View): def dispatch(self, request, *args, **kwargs): try: return super().dispatch(request, *args, **kwargs) except APIException as e: msg = str(e.detail) return self.get_failed_response( '/', _('FeiShu Error'), msg ) def verify_state(self): state = self.request.GET.get('state') session_state = self.request.session.get(FEISHU_STATE_SESSION_KEY) if state != session_state: return False return True def get_verify_state_failed_response(self, redirect_uri): msg = _("The system configuration is incorrect. Please contact your administrator") return self.get_failed_response(redirect_uri, msg, msg) def get_qr_url(self, redirect_uri): state = random_string(16) self.request.session[FEISHU_STATE_SESSION_KEY] = state params = { 'app_id': settings.FEISHU_APP_ID, 'state': state, 'redirect_uri': redirect_uri, } url = URL.AUTHEN + '?' + urlencode(params) return url @staticmethod def get_success_response(redirect_url, title, msg): message_data = { 'title': title, 'message': msg, 'interval': 5, 'redirect_url': redirect_url, } return FlashMessageUtil.gen_and_redirect_to(message_data) @staticmethod def get_failed_response(redirect_url, title, msg): message_data = { 'title': title, 'error': msg, 'interval': 5, 'redirect_url': redirect_url, } return FlashMessageUtil.gen_and_redirect_to(message_data) def get_already_bound_response(self, redirect_url): msg = _('FeiShu is already bound') response = self.get_failed_response(redirect_url, msg, msg) return response class FeiShuQRBindView(FeiShuQRMixin, View): permission_classes = (IsAuthenticated, IsAuthConfirmTimeValid) def get(self, request: HttpRequest): user = request.user redirect_url = request.GET.get('redirect_url') redirect_uri = reverse('authentication:feishu-qr-bind-callback', external=True) redirect_uri += '?' + urlencode({'redirect_url': redirect_url}) url = self.get_qr_url(redirect_uri) return HttpResponseRedirect(url) class FeiShuQRBindCallbackView(FeiShuQRMixin, View): permission_classes = (IsAuthenticated,) def get(self, request: HttpRequest): code = request.GET.get('code') redirect_url = request.GET.get('redirect_url') if not self.verify_state(): return self.get_verify_state_failed_response(redirect_url) user = request.user if user.feishu_id: response = self.get_already_bound_response(redirect_url) return response feishu = FeiShu( app_id=settings.FEISHU_APP_ID, app_secret=settings.FEISHU_APP_SECRET ) user_id = feishu.get_user_id_by_code(code) if not user_id: msg = _('FeiShu query user failed') response = self.get_failed_response(redirect_url, msg, msg) return response try: user.feishu_id = user_id user.save() except IntegrityError as e: if e.args[0] == 1062: msg = _('The FeiShu is already bound to another user') response = self.get_failed_response(redirect_url, msg, msg) return response raise e ip = get_request_ip(request) OAuthBindMessage(user, ip, _('FeiShu'), user_id).publish_async() msg = _('Binding FeiShu successfully') response = self.get_success_response(redirect_url, msg, msg) return response class FeiShuEnableStartView(UserVerifyPasswordView): def get_success_url(self): referer = self.request.META.get('HTTP_REFERER') redirect_url = self.request.GET.get("redirect_url") success_url = reverse('authentication:feishu-qr-bind') success_url += '?' + urlencode({ 'redirect_url': redirect_url or referer }) return success_url class FeiShuQRLoginView(FeiShuQRMixin, View): permission_classes = (AllowAny,) def get(self, request: HttpRequest): redirect_url = request.GET.get('redirect_url') or reverse('index') redirect_uri = reverse('authentication:feishu-qr-login-callback', external=True) redirect_uri += '?' + urlencode({ 'redirect_url': redirect_url, }) url = self.get_qr_url(redirect_uri) return HttpResponseRedirect(url) class FeiShuQRLoginCallbackView(AuthMixin, FeiShuQRMixin, View): permission_classes = (AllowAny,) def get(self, request: HttpRequest): code = request.GET.get('code') redirect_url = request.GET.get('redirect_url') login_url = reverse('authentication:login') if not self.verify_state(): return self.get_verify_state_failed_response(redirect_url) feishu = FeiShu( app_id=settings.FEISHU_APP_ID, app_secret=settings.FEISHU_APP_SECRET ) user_id = feishu.get_user_id_by_code(code) if not user_id: # 正常流程不会出这个错误，hack 行为 msg = _('Failed to get user from FeiShu') response = self.get_failed_response(login_url, title=msg, msg=msg) return response user = get_object_or_none(User, feishu_id=user_id) if user is None: title = _('FeiShu is not bound') msg = _('Please login with a password and then bind the FeiShu') response = self.get_failed_response(login_url, title=title, msg=msg) return response try: self.check_oauth2_auth(user, settings.AUTH_BACKEND_FEISHU) except errors.AuthFailedError as e: self.set_login_failed_mark() msg = e.msg response = self.get_failed_response(login_url, title=msg, msg=msg) return response return self.redirect_to_guard_view()