Appgate (SAML POST)

Appgate accepts SAMLResponse via POST. This guide applies when using Casdoor as the SAML IdP for Appgate (and for other SPs that support POST).

Casdoor configuration

Create or edit the application in Casdoor and set:

Setting	Value
Redirect URL	Unique identifier (Audience/Entity ID in the SP). Use the value from the table below.
URL de Respuesta	ACS URL that receives and verifies the SAML response.

Use case	Redirect URL	SAML Reply URL
Administrator auth	AppGate	https://mycontroller.your-site-url.com/admin/saml
User auth	AppGate Client	https://redirectserver.your-site-url.com/saml

Download the SAML metadata (copy the metadata URL and open it in a browser to save the XML).

Agregar IdP SAML en Appgate

1. In AppGate SDP Console → System → Identity Providers, create a new provider and choose SAML.
2. Set Name (e.g. "Casdoor SAML Admin"). For Single Sign-on URL, Issuer, and Public Certificate, upload the metadata file so they are filled automatically.
3. Set Audience to the Redirect URL you configured in Casdoor.

Upload the metadata via Choose a file to autocomplete Single Sign-On URL, Issuer, and Public Certificate.

Map attributes

Map the Name attribute to username.

Test

1. Log out of the AppGate admin UI.
2. Sign in with Identity Provider set to your Casdoor IdP and Sign in with browser.
3. A message like "You don't have any administration rights" indicates the IdP authenticated the user; adjust Appgate roles/policies as needed.

Access policy

Update the Builtin Administrator Policy (or equivalent) so administrators can sign in via the SAML IdP.