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# Which Problems Are Solved Currently ZITADEL supports RP-initiated logout for clients. Back-channel logout ensures that user sessions are terminated across all connected applications, even if the user closes their browser or loses connectivity providing a more secure alternative for certain use cases. # How the Problems Are Solved If the feature is activated and the client used for the authentication has a back_channel_logout_uri configured, a `session_logout.back_channel` will be registered. Once a user terminates their session, a (notification) handler will send a SET (form POST) to the registered uri containing a logout_token (with the user's ID and session ID). - A new feature "back_channel_logout" is added on system and instance level - A `back_channel_logout_uri` can be managed on OIDC applications - Added a `session_logout` aggregate to register and inform about sent `back_channel` notifications - Added a `SecurityEventToken` channel and `Form`message type in the notification handlers - Added `TriggeredAtOrigin` fields to `HumanSignedOut` and `TerminateSession` events for notification handling - Exported various functions and types in the `oidc` package to be able to reuse for token signing in the back_channel notifier. - To prevent that current existing session termination events will be handled, a setup step is added to set the `current_states` for the `projections.notifications_back_channel_logout` to the current position - [x] requires https://github.com/zitadel/oidc/pull/671 # Additional Changes - Updated all OTEL dependencies to v1.29.0, since OIDC already updated some of them to that version. - Single Session Termination feature is correctly checked (fixed feature mapping) # Additional Context - closes https://github.com/zitadel/zitadel/issues/8467 - TODO: - Documentation - UI to be done: https://github.com/zitadel/zitadel/issues/8469 --------- Co-authored-by: Hidde Wieringa <hidde@hiddewieringa.nl>
28 lines
555 B
Go
28 lines
555 B
Go
package messages
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import (
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"net/url"
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"github.com/zitadel/schema"
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"github.com/zitadel/zitadel/internal/eventstore"
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"github.com/zitadel/zitadel/internal/notification/channels"
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)
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var _ channels.Message = (*Form)(nil)
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type Form struct {
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Serializable any
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TriggeringEvent eventstore.Event
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}
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func (msg *Form) GetContent() (string, error) {
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values := make(url.Values)
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err := schema.NewEncoder().Encode(msg.Serializable, values)
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return values.Encode(), err
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}
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func (msg *Form) GetTriggeringEvent() eventstore.Event {
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return msg.TriggeringEvent
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}
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