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* add constraint support to UserStateSubject * add dynamic constraints * implement password policy constraints * replace policy evaluator with constraints in credential generation service * add cascade between minNumber and minSpecial Co-authored-by: Daniel James Smith <2670567+djsmith85@users.noreply.github.com>
30 lines
1.2 KiB
TypeScript
30 lines
1.2 KiB
TypeScript
import { Observable } from "rxjs";
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import { DynamicStateConstraints, StateConstraints } from "../types";
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/** A pattern for types that depend upon a dynamic set of constraints.
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*
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* Consumers of this dependency should track the last-received state and
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* apply it when application state is received or emitted. If `constraints$`
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* emits an unrecoverable error, the consumer should continue using the
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* last-emitted constraints. If `constraints$` completes, the consumer should
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* continue using the last-emitted constraints.
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*/
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export type StateConstraintsDependency<State> = {
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/** A stream that emits constraints when subscribed and when the
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* constraints change. The stream should not emit `null` or
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* `undefined`.
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*/
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constraints$: Observable<StateConstraints<State> | DynamicStateConstraints<State>>;
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};
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/** Returns `true` if the input constraint is a `DynamicStateConstraints<T>`.
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* Otherwise, returns false.
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* @param constraints the constraint to evaluate.
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* */
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export function isDynamic<State>(
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constraints: StateConstraints<State> | DynamicStateConstraints<State>,
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): constraints is DynamicStateConstraints<State> {
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return constraints && "calibrate" in constraints;
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}
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