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${ noResults }
33 lines
1.4 KiB
Markdown
33 lines
1.4 KiB
Markdown
# MSC1721: Rename `m.login.cas` to `m.login.sso`
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The Matrix Client-Server spec includes a [section on client login using Central
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Authentication Service
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(CAS)](https://matrix.org/docs/spec/client_server/r0.4.0.html#cas-based-client-login).
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The spec currently fails to mention it, but this process is triggered when [`GET
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/login`](https://matrix.org/docs/spec/client_server/r0.4.0.html#get-matrix-client-r0-login)
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returns a flow type of `m.login.cas`.
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Nothing in this flow is specific to CAS - it is equally applicable for other
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web-based single-sign-on processes, such as SAML.
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Accordingly, we should rename `cas` to `sso`.
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## Proposal
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1. `m.login.sso` should be defined as a valid login type for return from `GET
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/login`. (We should probably mention `m.login.cas` in the spec while we are
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there.)
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2. When a client wishes to use the SSO login type, it should redirect to
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`/_matrix/client/r0/login/sso/redirect` (instead of
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`/_matrix/client/r0/login/cas/redirect`).
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3. Servers should treat `/_matrix/client/r0/login/sso/redirect` identically to
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`/_matrix/client/r0/login/cas/redirect`: they should issue a redirect to
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their configured single-sign-on system.
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4. Servers which support `m.login.sso` should make sure they update their [login
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fallback page](https://matrix.org/docs/spec/client_server/r0.4.0.html#login-fallback)
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to understand the new login type.
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