Feat: change login to oauth via keycloak (#47)

### SUMMARY
Change login via keycloak

### BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

![image](https://github.com/user-attachments/assets/1ec1624e-39f4-4005-be35-4b0e5dd2933e)

### ADDITIONAL INFORMATION
- [ ] Has associated issue:
- [ ] Required feature flags:
- [ ] Changes UI
- [ ] Includes DB Migration (follow approval process in
[SIP-59](apache#13351))
  - [ ] Migration is atomic, supports rollback & is backwards-compatible
  - [ ] Confirm DB migration upgrade and downgrade tested
  - [ ] Runtime estimates and downtime expectations provided
- [X] Introduces new feature or API
- [ ] Removes existing feature or API

requirements/local.txt

@@ -22,4 +22,4 @@ prophet==1.1.3
 pydoris==1.0.5.3
 sqlalchemy-bigquery==1.11.0
 shillelagh[gsheetsapi]
-Authlib
+Authlib==1.3.2

superset/config.py

@@ -39,7 +39,7 @@
 import pkg_resources
 from celery.schedules import crontab
 from flask import Blueprint
-from flask_appbuilder.security.manager import AUTH_DB
+from flask_appbuilder.security.manager import AUTH_OAUTH
 from flask_caching.backends.base import BaseCache
 from pandas import Series
 from pandas._libs.parsers import STR_NA_VALUES  # pylint: disable=no-name-in-module
@@ -310,7 +310,50 @@ def _try_json_readsha(filepath: str, length: int) -> str | None:
 # AUTH_DB : Is for database (username/password)
 # AUTH_LDAP : Is for LDAP
 # AUTH_REMOTE_USER : Is for using REMOTE_USER from web server
-AUTH_TYPE = AUTH_DB
+AUTH_TYPE = AUTH_OAUTH
+
+KEYCLOAK_CLIENT_SECRET = os.environ.get("KEYCLOAK_CLIENT_SECRET", "")
+KEYCLOAK_CLIENT_ID = os.environ.get("KEYCLOAK_CLIENT_ID", "")
+KEYCLOAK_URL = os.environ.get("KEYCLOAK_URL", "")
+KEYCLOAK_REALM = os.environ.get("KEYCLOAK_REALM", "")
+
+# Setup auth via OAUTH in keycloak
+OAUTH_PROVIDERS = [{
+    'name': 'keycloak',
+    'icon': 'fa-key',
+    'token_key': 'access_token',
+    'remote_app': {
+        'client_id': KEYCLOAK_CLIENT_ID ,
+        'client_secret': KEYCLOAK_CLIENT_SECRET,
+        'api_base_url': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/protocol/',
+        'jwks_uri': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/protocol/openid-connect/certs',
+        'server_metadata_url': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/.well-known/openid-configuration',
+        'client_kwargs': {
+            'scope': 'openid email profile roles',
+            'redirect_uri': 'http://localhost:8088/oauth-authorized/keycloak',
+            'userinfo_uri': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/protocol/openid-connect/userinfo',
+            'verify_signature': True,
+            'verify_exp': True
+        },
+        'request_token_url': None,
+        'access_token_url': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/protocol/openid-connect/token',
+        'authorize_url': f'{KEYCLOAK_URL}/realms/{KEYCLOAK_REALM}/protocol/openid-connect/auth'
+    },
+}]
+
+# URL Configuration
+PREFERRED_URL_SCHEME = 'https'
+
+# Authentication Configuration
+AUTH_USER_REGISTRATION = True
+AUTH_USER_REGISTRATION_ROLE = "sql_lab"
+AUTH_ROLES_SYNC_AT_LOGIN = True
+AUTH_ROLES_MAPPING = {
+    "studio_admin": ["Admin"],
+    "studio_alpha": ["Alpha"],
+    "studio_gamma": ["Gamma"],
+    "studio_sqllab": ["sql_lab"],
+}
 
 # Uncomment to setup Full admin role name
 # AUTH_ROLE_ADMIN = 'Admin'

superset/security/manager.py

@@ -541,6 +541,24 @@ def send_pw_reset_email(self, user, resetpw):
             return False
         return True
 
+    def oauth_user_info(self, provider, response=None):
+        logging.debug("Oauth2 provider: {0}.".format(provider))
+        if provider == 'keycloak':
+            me = self.appbuilder.sm.oauth_remotes[provider].get('openid-connect/userinfo')
+            me.raise_for_status()
+            data = me.json()
+            logging.debug(f"user_data: {data}")
+            return {
+                "name" : data.get("name", ""),
+                "email" : data.get("email", ""),
+                "id": data.get("sub", ""),
+                "username": data.get("preferred_username", ""),
+                "first_name": data.get("given_name", ""),
+                "last_name": data.get("family_name", ""),
+                "email": data.get("email", ""),
+                "role_keys": data.get("role_keys", []),
+            }
+
     def get_schema_perm(
         self, database: Union["Database", str], schema: Optional[str] = None
     ) -> Optional[str]: