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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>
103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
package query
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import (
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"github.com/zitadel/zitadel/internal/eventstore"
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"github.com/zitadel/zitadel/internal/feature"
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"github.com/zitadel/zitadel/internal/repository/feature/feature_v2"
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)
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type SystemFeaturesReadModel struct {
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*eventstore.ReadModel
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system *SystemFeatures
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}
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func NewSystemFeaturesReadModel() *SystemFeaturesReadModel {
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m := &SystemFeaturesReadModel{
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ReadModel: &eventstore.ReadModel{
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AggregateID: "SYSTEM",
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ResourceOwner: "SYSTEM",
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},
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system: new(SystemFeatures),
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}
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return m
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}
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func (m *SystemFeaturesReadModel) Reduce() error {
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for _, event := range m.Events {
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switch e := event.(type) {
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case *feature_v2.ResetEvent:
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m.reduceReset()
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case *feature_v2.SetEvent[bool]:
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err := reduceSystemFeatureSet(m.system, e)
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if err != nil {
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return err
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}
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case *feature_v2.SetEvent[[]feature.ImprovedPerformanceType]:
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err := reduceSystemFeatureSet(m.system, e)
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if err != nil {
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return err
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}
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}
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}
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return m.ReadModel.Reduce()
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}
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func (m *SystemFeaturesReadModel) Query() *eventstore.SearchQueryBuilder {
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return eventstore.NewSearchQueryBuilder(eventstore.ColumnsEvent).
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AwaitOpenTransactions().
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AddQuery().
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AggregateTypes(feature_v2.AggregateType).
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AggregateIDs(m.AggregateID).
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EventTypes(
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feature_v2.SystemResetEventType,
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feature_v2.SystemLoginDefaultOrgEventType,
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feature_v2.SystemTriggerIntrospectionProjectionsEventType,
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feature_v2.SystemLegacyIntrospectionEventType,
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feature_v2.SystemUserSchemaEventType,
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feature_v2.SystemTokenExchangeEventType,
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feature_v2.SystemActionsEventType,
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feature_v2.SystemImprovedPerformanceEventType,
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feature_v2.SystemOIDCSingleV1SessionTerminationEventType,
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feature_v2.SystemDisableUserTokenEvent,
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feature_v2.SystemEnableBackChannelLogout,
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).
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Builder().ResourceOwner(m.ResourceOwner)
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}
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func (m *SystemFeaturesReadModel) reduceReset() {
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m.system = nil
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m.system = new(SystemFeatures)
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}
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func reduceSystemFeatureSet[T any](features *SystemFeatures, event *feature_v2.SetEvent[T]) error {
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level, key, err := event.FeatureInfo()
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if err != nil {
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return err
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}
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switch key {
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case feature.KeyUnspecified:
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return nil
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case feature.KeyLoginDefaultOrg:
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features.LoginDefaultOrg.set(level, event.Value)
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case feature.KeyTriggerIntrospectionProjections:
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features.TriggerIntrospectionProjections.set(level, event.Value)
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case feature.KeyLegacyIntrospection:
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features.LegacyIntrospection.set(level, event.Value)
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case feature.KeyUserSchema:
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features.UserSchema.set(level, event.Value)
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case feature.KeyTokenExchange:
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features.TokenExchange.set(level, event.Value)
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case feature.KeyActions:
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features.Actions.set(level, event.Value)
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case feature.KeyImprovedPerformance:
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features.ImprovedPerformance.set(level, event.Value)
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case feature.KeyOIDCSingleV1SessionTermination:
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features.OIDCSingleV1SessionTermination.set(level, event.Value)
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case feature.KeyDisableUserTokenEvent:
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features.DisableUserTokenEvent.set(level, event.Value)
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case feature.KeyEnableBackChannelLogout:
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features.EnableBackChannelLogout.set(level, event.Value)
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}
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return nil
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}
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