GitHub user dosubot[bot] added a comment to the discussion: Apache Superset &
Keycloak integration
<!-- Answer -->
To resolve the issue where, after entering credentials on the Keycloak page,
you are redirected back to Apache Superset with the message: "The request to
sign in was denied," you need to ensure that the OAuth2 flow is correctly
configured and that the necessary permissions are granted.
Here are some steps you can take to troubleshoot and resolve the issue:
1. **Check Redirect URI**: Ensure that the `redirect_uri` configured in
Keycloak matches the one expected by Superset. The `redirect_uri` should be
correctly set in both Keycloak and Superset configurations.
2. **Verify OAuth2 Configuration**: Make sure that the OAuth2 client
configuration in Keycloak is correct. This includes the client ID, client
secret, and the allowed redirect URIs.
3. **Inspect Browser Console and Network Logs**: Look at the browser console
and network logs to see if there are any errors or warnings that can provide
more details about why the sign-in request was denied.
4. **Check Superset Logs**: Review the Superset logs for any error messages or
warnings related to the OAuth2 authentication process. This can provide more
insight into what might be going wrong.
5. **Ensure Correct Permissions**: Verify that the user has the necessary
permissions in Keycloak to access the application.
6. **Cross-Origin Requests**: Ensure that cross-origin requests are properly
handled and that the `event.origin` and `event.source` checks in the
`handleMessage` function are correctly validating the message source.
Here is the relevant part of the code that handles the OAuth2 redirect and
message validation:
```tsx
const handleMessage = (event: MessageEvent) => {
const redirectUrl = new URL(extra.redirect_uri);
if (
event.origin === redirectUrl.origin &&
event.data.tabId === extra.tab_id &&
event.source === oAuthTab.current
) {
if (source === 'sqllab' && query) {
dispatch(reRunQuery(query));
} else if (source === 'explore' && chartId) {
dispatch(triggerQuery(true, chartId));
} else if (source === 'dashboard') {
dispatch(onRefresh(chartList, true, 0, dashboardId));
}
}
};
```
Ensure that the `redirect_uri`, `tab_id`, and `event.origin` are correctly set
and match the expected values. This validation is crucial for the OAuth2 flow
to succeed
<sup>[[1]](https://github.com/apache/superset/blob/master/superset-frontend/src/components/ErrorMessage/OAuth2RedirectMessage.tsx)</sup>.
Additionally, review the specific error messages or logs generated by Superset
when the OAuth2 authentication fails. The relevant error messages are:
1. **OAuth2RedirectError**:
```python
SupersetError(
message="You don't have permission to access the data.",
error_type=SupersetErrorType.OAUTH2_REDIRECT,
level=ErrorLevel.WARNING,
extra={"url": url, "tab_id": tab_id, "redirect_uri": redirect_uri},
)
```
2. **OAuth2Error**:
```python
SupersetError(
message="Something went wrong while doing OAuth2",
error_type=SupersetErrorType.OAUTH2_REDIRECT_ERROR,
level=ErrorLevel.ERROR,
extra={"error": error},
)
<sup>[[2]](https://github.com/apache/superset/blob/master/superset/exceptions.py)</sup><sup>[[3]](https://github.com/apache/superset/blob/master/superset/errors.py)</sup>
```
By following these steps and ensuring that the configurations are correct, you
should be able to resolve the issue and successfully authenticate using
Keycloak with Apache Superset.
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GitHub link:
https://github.com/apache/superset/discussions/33623#discussioncomment-13315427
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