I have done the following to setup my word press as a SSO client:
On wordpress
added all fields in the “connection” tab
added by secret key
On discourse
enable SSO provider
add SSO secret key
Although, when i try and sign in I get the following screen.
How could I fix this?
My guess is that the problem is because of what you are asking about here:
Could you try using the default WordPress .htaccess configuration and see if you are still getting an error?
Instead I just reverted back to a wordpress backup from 2 days ago (with the original htaccess file). Although, the problem was still there. But when I cleared all my cache. cookies and history, it started to work again.
Kind of a weird situation but im glad I sorted it out.
Do you think the wp optimize plugin could have anything to do with this?
I don’t know. If you can figure that out, and why that is the case, please let us know. We can’t get into a lot of WordPress development on this forum, but it’s good to know about conflicts between the WP Discourse plugin and any other WordPress plugins. It makes debugging issues a lot easier.
For anyone else experiencing this error, I fixed it by filling in the sso provider secrets setting for the client domain name:
In the Discourse code, when this secret is not set, the call to OpenSSL::HMAC.hexdigest fails with the following error in the logs:
TypeError (no implicit conversion of nil into String) /var/www/discourse/lib/single_sign_on.rb:114:in `hexdigest’
Here is the relevant code path:
This error message should definitely be improved! _Edit: and it has been - see https://meta.discourse.org/t/confusing-unpolished-error-message-when-using-discourse-as-sso-provider/123762_
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