Recently I launched a web app using pythonanywhere and django, and I am trying to validate sign-ins using okta. However, every time I try to log in I get the following error:
Access to fetch at 'https://dev-84844226.okta.com/api/v1/authn' from origin 'https://matthewwong.pythonanywhere.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
POST https://dev-84844226.okta.com/api/v1/authn net::ERR_FAILED
I’m not sure what to do from here, as I believe I have the necessary package installed (django-cors-headers), and I’ve also set CORS_ALLOW_ALL_ORIGINS to True (I’ve also just tried adding the specific URL to CORS_ALLOWED_ORIGINS).
Another thing to note is that this web app works perfectly fine when I host and access it locally off of my own machine (localhost), even without having django-cors-headers imported.
I’m attaching my settings.py code along with the login webpage code where the errors are occurring.
settings.py:
"""
Django settings for mysite project.
Generated by 'django-admin startproject' using Django 4.2.4.
For more information on this file, see
https://docs.djangoproject.com/en/4.2/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.2/ref/settings/
"""
from pathlib import Path
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = "OMITTED"
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = ['www.msh-rtscheduling.com', 'matthewwong.pythonanywhere.com']
# Application definition
INSTALLED_APPS = [
"django.contrib.admin",
"django.contrib.auth",
"django.contrib.contenttypes",
"django.contrib.sessions",
"django.contrib.messages",
"django.contrib.staticfiles",
"corsheaders",
"crispy_forms",
"crispy_bootstrap4",
"main.apps.MainConfig",
"register.apps.RegisterConfig",
'okta_oauth2.apps.OktaOauth2Config',
]
MIDDLEWARE = [
"django.middleware.security.SecurityMiddleware",
"django.contrib.sessions.middleware.SessionMiddleware",
"corsheaders.middleware.CorsMiddleware",
'whitenoise.middleware.WhiteNoiseMiddleware',
"django.middleware.common.CommonMiddleware",
"django.middleware.csrf.CsrfViewMiddleware",
"django.contrib.auth.middleware.AuthenticationMiddleware",
"django.contrib.messages.middleware.MessageMiddleware",
"django.middleware.clickjacking.XFrameOptionsMiddleware",
]
#CORS_ALLOWED_ORIGINS = [
#'https://matthewwong.pythonanywhere.com',
#]
CORS_ALLOW_ALL_ORIGINS = True
OKTA_AUTH = {
"ORG_URL": "https://dev-84844226.okta.com",
"ISSUER": "https://dev-84844226.okta.com/oauth2/default",
"CLIENT_ID": "OMITTED",
"CLIENT_SECRET": "OMITTED",
"SCOPES": "openid profile email offline_access", # this is the default and can be omitted
"REDIRECT_URI": "https://matthewwong.pythonanywhere.com/accounts/oauth2/callback/",
"LOGIN_REDIRECT_URL": "/", # default
"CACHE_PREFIX": "okta", # default
"CACHE_ALIAS": "default", # default
"PUBLIC_NAMED_URLS": (), # default
"PUBLIC_URLS": (), # default
"STAFF_GROUP": None,
"SUPERUSER_GROUP": None,
"MANAGE_GROUPS": False,
"USE_USERNAME": True, # default
}
ROOT_URLCONF = "mysite.urls"
TEMPLATES = [
{
"BACKEND": "django.template.backends.django.DjangoTemplates",
"DIRS": [],
"APP_DIRS": True,
"OPTIONS": {
"context_processors": [
"django.template.context_processors.debug",
"django.template.context_processors.request",
"django.contrib.auth.context_processors.auth",
"django.contrib.messages.context_processors.messages",
],
},
},
]
WSGI_APPLICATION = "mysite.wsgi.application"
# Database
# https://docs.djangoproject.com/en/4.2/ref/settings/#databases
DATABASES = {
"default": {
"ENGINE": "django.db.backends.sqlite3",
"NAME": BASE_DIR / "db.sqlite3",
}
}
# Password validation
# https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
"NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
},
{
"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
},
{
"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
},
{
"NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
},
]
#Password reset
#EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
#EMAIL_HOST = 'smtp.gmail.com'
#EMAIL_PORT = 587
#EMAIL_USE_TLS = True
#EMAIL_HOST_USER = ''
#EMAIL_HOST_PASSWORD = ''
# Internationalization
# https://docs.djangoproject.com/en/4.2/topics/i18n/
LANGUAGE_CODE = "en-us"
TIME_ZONE = "UTC"
USE_I18N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.2/howto/static-files/
STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / 'static'
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
CRISPY_TEMPLATE_PACK="bootstrap4"
AUTHENTICATION_BACKENDS = ("django.contrib.auth.backends.ModelBackend","okta_oauth2.backend.OktaBackend",)
LOGIN_REDIRECT_URL = "/"
LOGIN_URL = "/accounts/login"
LOGOUT_REDIRECT_URL = "/accounts/login"
# Default primary key field type
# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
login.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script
src="https://global.oktacdn.com/okta-signin-widget/5.11.0/js/okta-sign-in.min.js"
type="text/javascript"
></script>
<link
href="https://global.oktacdn.com/okta-signin-widget/5.11.0/css/okta-sign-in.min.css"
type="text/css"
rel="stylesheet"
/>
</head>
<body>
<div id="okta-login-container"></div>
<script type="text/javascript">
var oktaSignIn = new OktaSignIn({
baseUrl: '{{config.url}}',
clientId: '{{config.clientId}}',
redirectUri: '{{config.redirectUri}}',
authParams: {
issuer: '{{config.issuer}}',
responseType: ['code'],
scopes: "{{config.scope}}".split(" "),
pkce: false,
},
});
oktaSignIn.renderEl(
{el: '#okta-login-container'},
function (res) {
console.log(res);
});
</script>
</body>
</html>
Any help would be really appreciated!