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