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
# Which Problems Are Solved Currently ZITADEL defines organization and instance member roles and permissions in defaults.yaml. The permission check is done on API call level. For example: "is this user allowed to make this call on this org". This makes sense on the V1 API where the API is permission-level shaped. For example, a search for users always happens in the context of the organization. (Either the organization the calling user belongs to, or through member ship and the x-zitadel-orgid header. However, for resource based APIs we must be able to resolve permissions by object. For example, an IAM_OWNER listing users should be able to get all users in an instance based on the query filters. Alternatively a user may have user.read permissions on one or more orgs. They should be able to read just those users. # How the Problems Are Solved ## Role permission mapping The role permission mappings defined from `defaults.yaml` or local config override are synchronized to the database on every run of `zitadel setup`: - A single query per **aggregate** builds a list of `add` and `remove` actions needed to reach the desired state or role permission mappings from the config. - The required events based on the actions are pushed to the event store. - Events define search fields so that permission checking can use the indices and is strongly consistent for both query and command sides. The migration is split in the following aggregates: - System aggregate for for roles prefixed with `SYSTEM` - Each instance for roles not prefixed with `SYSTEM`. This is in anticipation of instance level management over the API. ## Membership Current instance / org / project membership events now have field table definitions. Like the role permissions this ensures strong consistency while still being able to use the indices of the fields table. A migration is provided to fill the membership fields. ## Permission check I aimed keeping the mental overhead to the developer to a minimal. The provided implementation only provides a permission check for list queries for org level resources, for example users. In the `query` package there is a simple helper function `wherePermittedOrgs` which makes sure the underlying database function is called as part of the `SELECT` query and the permitted organizations are part of the `WHERE` clause. This makes sure results from non-permitted organizations are omitted. Under the hood: - A Pg/PlSQL function searches for a list of organization IDs the passed user has the passed permission. - When the user has the permission on instance level, it returns early with all organizations. - The functions uses a number of views. The views help mapping the fields entries into relational data and simplify the code use for the function. The views provide some pre-filters which allow proper index usage once the final `WHERE` clauses are set by the function. # Additional Changes # Additional Context Closes #9032 Closes https://github.com/zitadel/zitadel/issues/9014 https://github.com/zitadel/zitadel/issues/9188 defines follow-ups for the new permission framework based on this concept.
161 lines
3.5 KiB
Go
161 lines
3.5 KiB
Go
package org
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import (
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"context"
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"github.com/zitadel/zitadel/internal/eventstore"
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"github.com/zitadel/zitadel/internal/repository/member"
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)
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const (
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MemberAddedEventType = orgEventTypePrefix + member.AddedEventType
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MemberChangedEventType = orgEventTypePrefix + member.ChangedEventType
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MemberRemovedEventType = orgEventTypePrefix + member.RemovedEventType
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MemberCascadeRemovedEventType = orgEventTypePrefix + member.CascadeRemovedEventType
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)
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const (
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fieldPrefix = "org"
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)
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type MemberAddedEvent struct {
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member.MemberAddedEvent
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}
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func (e *MemberAddedEvent) Fields() []*eventstore.FieldOperation {
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return e.FieldOperations(fieldPrefix)
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}
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func NewMemberAddedEvent(
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ctx context.Context,
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aggregate *eventstore.Aggregate,
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userID string,
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roles ...string,
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) *MemberAddedEvent {
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return &MemberAddedEvent{
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MemberAddedEvent: *member.NewMemberAddedEvent(
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eventstore.NewBaseEventForPush(
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ctx,
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aggregate,
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MemberAddedEventType,
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),
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userID,
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roles...,
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),
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}
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}
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func MemberAddedEventMapper(event eventstore.Event) (eventstore.Event, error) {
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e, err := member.MemberAddedEventMapper(event)
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if err != nil {
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return nil, err
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}
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return &MemberAddedEvent{MemberAddedEvent: *e.(*member.MemberAddedEvent)}, nil
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}
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type MemberChangedEvent struct {
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member.MemberChangedEvent
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}
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func (e *MemberChangedEvent) Fields() []*eventstore.FieldOperation {
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return e.FieldOperations(fieldPrefix)
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}
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func NewMemberChangedEvent(
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ctx context.Context,
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aggregate *eventstore.Aggregate,
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userID string,
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roles ...string,
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) *MemberChangedEvent {
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return &MemberChangedEvent{
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MemberChangedEvent: *member.NewMemberChangedEvent(
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eventstore.NewBaseEventForPush(
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ctx,
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aggregate,
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MemberChangedEventType,
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),
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userID,
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roles...,
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),
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}
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}
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func MemberChangedEventMapper(event eventstore.Event) (eventstore.Event, error) {
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e, err := member.ChangedEventMapper(event)
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if err != nil {
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return nil, err
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}
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return &MemberChangedEvent{MemberChangedEvent: *e.(*member.MemberChangedEvent)}, nil
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}
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type MemberRemovedEvent struct {
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member.MemberRemovedEvent
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}
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func (e *MemberRemovedEvent) Fields() []*eventstore.FieldOperation {
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return e.FieldOperations(fieldPrefix)
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}
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func NewMemberRemovedEvent(
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ctx context.Context,
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aggregate *eventstore.Aggregate,
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userID string,
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) *MemberRemovedEvent {
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return &MemberRemovedEvent{
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MemberRemovedEvent: *member.NewRemovedEvent(
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eventstore.NewBaseEventForPush(
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ctx,
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aggregate,
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MemberRemovedEventType,
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),
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userID,
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),
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}
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}
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func MemberRemovedEventMapper(event eventstore.Event) (eventstore.Event, error) {
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e, err := member.RemovedEventMapper(event)
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if err != nil {
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return nil, err
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}
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return &MemberRemovedEvent{MemberRemovedEvent: *e.(*member.MemberRemovedEvent)}, nil
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}
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type MemberCascadeRemovedEvent struct {
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member.MemberCascadeRemovedEvent
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}
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func (e *MemberCascadeRemovedEvent) Fields() []*eventstore.FieldOperation {
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return e.FieldOperations(fieldPrefix)
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}
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func NewMemberCascadeRemovedEvent(
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ctx context.Context,
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aggregate *eventstore.Aggregate,
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userID string,
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) *MemberCascadeRemovedEvent {
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return &MemberCascadeRemovedEvent{
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MemberCascadeRemovedEvent: *member.NewCascadeRemovedEvent(
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eventstore.NewBaseEventForPush(
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ctx,
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aggregate,
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MemberCascadeRemovedEventType,
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),
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userID,
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),
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}
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}
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func MemberCascadeRemovedEventMapper(event eventstore.Event) (eventstore.Event, error) {
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e, err := member.CascadeRemovedEventMapper(event)
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if err != nil {
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return nil, err
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}
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return &MemberCascadeRemovedEvent{MemberCascadeRemovedEvent: *e.(*member.MemberCascadeRemovedEvent)}, nil
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}
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