SafeBagValueFactory.ts

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export type BagType = PrivateKeyInfo | PKCS8ShroudedKeyBag | CertBag | CRLBag | SecretBag | SafeContents;

export type BagTypeJson = PrivateKeyInfoJson | JsonWebKey | PKCS8ShroudedKeyBagJson | CertBagJson | CRLBagJson | SecretBagJson | SafeContentsJson;

export interface BagTypeConstructor<T extends BagType> {

  new(params: { schema: any; }): T;

export class SafeBagValueFactory {

  private static items?: Record<string, BagTypeConstructor<BagType>>;

  private static getItems(): Record<string, BagTypeConstructor<BagType>> {

    if (!this.items) {

      this.items = {};

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.1", PrivateKeyInfo);

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.2", PKCS8ShroudedKeyBag);

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.3", CertBag);

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.4", CRLBag);

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.5", SecretBag);

      SafeBagValueFactory.register("1.2.840.113549.1.12.10.1.6", SafeContents);

    return this.items;

  public static register<T extends BagType = BagType>(id: string, type: BagTypeConstructor<T>): void {

    this.getItems()[id] = type;

  public static find(id: string): BagTypeConstructor<BagType> | null {

    return this.getItems()[id] || null;

//! NOTE Bag type must be imported after the SafeBagValueFactory declaration

import { CertBag, CertBagJson } from "./CertBag";

import { CRLBag, CRLBagJson } from "./CRLBag";

import { PKCS8ShroudedKeyBag, PKCS8ShroudedKeyBagJson } from "./PKCS8ShroudedKeyBag";

import { PrivateKeyInfo, PrivateKeyInfoJson } from "./PrivateKeyInfo";

import { SafeContents, SafeContentsJson } from "./SafeContents";

import { SecretBag, SecretBagJson } from "./SecretBag";