Creating a webinterface/KVM-over-IP session for user

We are a developer of server management software for dedicated server providers.
One of the things we currently miss most  is a standardized way to start a KVM-over-IP console session to a server without requiring the user to login to the IPMI management webinterface of that server manually first.

It would be very nice if Redfish was extended to support creating sessions on behalf of users for use outside of Redfish.



It could be something similar to the existing SessionService, like:


POST /redfish/v1/ExternalSessionService/Sessions HTTP/1.1
Content-Type: application/json;charset=utf-8
Accept: application/json;charset=utf-8
OData-Version: 4.0

{
"UserName": "username",
"Password": "password",
"SessionType": "KVM-IP"
}


With the only difference that instead of an X-Auth-Token it should return an URL we can redirect the user's browser to.
That URL should incorporate a single-use session token that logs the user in without prompting for username and password, and should serve the content necessary to display the console (e.g. JNLP Java webstart file, or HTML5 noVNC console page) straight away.


Location: /redfish/v1/ExternalSessionService/Sessions/1
X-Auth-Single-Use-Url: https://1.2.3.4/kvm-ip-webinterface/?token=80a91934-dd9f-442f-935c-ccfbb737caa2

{
"@odata.context": "/redfish/v1/$metadata#Session.Session",
"@odata.id": "/redfish/v1/ExternalSessionService/Sessions/1",
"@odata.type": "#Session.v1_0_0.Session",
"Id": "1",
"Name": "User Session",
"Description": "User Session",
"UserName": "username"
}