tor-browser

OriginatorInfo.ts (6047B)

---

import * as asn1js from "asn1js";
import * as pvutils from "pvutils";
import { CertificateSet, CertificateSetJson } from "./CertificateSet";
import { EMPTY_STRING } from "./constants";
import { AsnError } from "./errors";
import { PkiObject, PkiObjectParameters } from "./PkiObject";
import { RevocationInfoChoices, RevocationInfoChoicesJson } from "./RevocationInfoChoices";
import * as Schema from "./Schema";

const CERTS = "certs";
const CRLS = "crls";
const CLEAR_PROPS = [
 CERTS,
 CRLS,
];

export interface IOriginatorInfo {
 /**
  * Collection of certificates. In may contain originator certificates associated with several different
  * key management algorithms. It may also contain attribute certificates associated with the originator.
  */
 certs?: CertificateSet;
 /**
  * Collection of CRLs. It is intended that the set contain information sufficient to determine whether
  * or not the certificates in the certs field are valid, but such correspondence is not necessary
  */
 crls?: RevocationInfoChoices;
}

export interface OriginatorInfoJson {
 certs?: CertificateSetJson;
 crls?: RevocationInfoChoicesJson;
}

export type OriginatorInfoParameters = PkiObjectParameters & Partial<IOriginatorInfo>;

/**
* Represents the OriginatorInfo structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
*/
export class OriginatorInfo extends PkiObject implements IOriginatorInfo {

 public static override CLASS_NAME = "OriginatorInfo";

 public certs?: CertificateSet;
 public crls?: RevocationInfoChoices;

 /**
  * Initializes a new instance of the {@link CertificateSet} class
  * @param parameters Initialization parameters
  */
 constructor(parameters: OriginatorInfoParameters = {}) {
   super();

   this.crls = pvutils.getParametersValue(parameters, CRLS, OriginatorInfo.defaultValues(CRLS));

   if (parameters.schema) {
     this.fromSchema(parameters.schema);
   }
 }

 /**
  * Returns default values for all class members
  * @param memberName String name for a class member
  * @returns Default value
  */
 public static override defaultValues(memberName: typeof CERTS): CertificateSet;
 public static override defaultValues(memberName: typeof CRLS): RevocationInfoChoices;
 public static override defaultValues(memberName: string): any {
   switch (memberName) {
     case CERTS:
       return new CertificateSet();
     case CRLS:
       return new RevocationInfoChoices();
     default:
       return super.defaultValues(memberName);
   }
 }

 /**
  * Compare values with default values for all class members
  * @param memberName String name for a class member
  * @param memberValue Value to compare with default value
  */
 public static compareWithDefault(memberName: string, memberValue: any): boolean {
   switch (memberName) {
     case CERTS:
       return (memberValue.certificates.length === 0);
     case CRLS:
       return ((memberValue.crls.length === 0) && (memberValue.otherRevocationInfos.length === 0));
     default:
       return super.defaultValues(memberName);
   }
 }

 /**
  * @inheritdoc
  * @asn ASN.1 schema
  * ```asn
  * OriginatorInfo ::= SEQUENCE {
  *    certs [0] IMPLICIT CertificateSet OPTIONAL,
  *    crls [1] IMPLICIT RevocationInfoChoices OPTIONAL }
  *```
  */
 public static override schema(parameters: Schema.SchemaParameters<{
   certs?: string;
   crls?: string;
 }> = {}): Schema.SchemaType {
   const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});

   return (new asn1js.Sequence({
     name: (names.blockName || EMPTY_STRING),
     value: [
       new asn1js.Constructed({
         name: (names.certs || EMPTY_STRING),
         optional: true,
         idBlock: {
           tagClass: 3, // CONTEXT-SPECIFIC
           tagNumber: 0 // [0]
         },
         value: CertificateSet.schema().valueBlock.value
       }),
       new asn1js.Constructed({
         name: (names.crls || EMPTY_STRING),
         optional: true,
         idBlock: {
           tagClass: 3, // CONTEXT-SPECIFIC
           tagNumber: 1 // [1]
         },
         value: RevocationInfoChoices.schema().valueBlock.value
       })
     ]
   }));
 }

 public fromSchema(schema: Schema.SchemaType): void {
   // Clear input data first
   pvutils.clearProps(schema, CLEAR_PROPS);

   // Check the schema is valid
   const asn1 = asn1js.compareSchema(schema,
     schema,
     OriginatorInfo.schema({
       names: {
         certs: CERTS,
         crls: CRLS
       }
     })
   );
   AsnError.assertSchema(asn1, this.className);

   // Get internal properties from parsed schema
   if (CERTS in asn1.result) {
     this.certs = new CertificateSet({
       schema: new asn1js.Set({
         value: asn1.result.certs.valueBlock.value
       })
     });
   }
   if (CRLS in asn1.result) {
     this.crls = new RevocationInfoChoices({
       schema: new asn1js.Set({
         value: asn1.result.crls.valueBlock.value
       })
     });
   }
 }

 public toSchema(): asn1js.Sequence {
   const sequenceValue = [];

   if (this.certs) {
     sequenceValue.push(new asn1js.Constructed({
       idBlock: {
         tagClass: 3, // CONTEXT-SPECIFIC
         tagNumber: 0 // [0]
       },
       value: this.certs.toSchema().valueBlock.value
     }));
   }

   if (this.crls) {
     sequenceValue.push(new asn1js.Constructed({
       idBlock: {
         tagClass: 3, // CONTEXT-SPECIFIC
         tagNumber: 1 // [1]
       },
       value: this.crls.toSchema().valueBlock.value
     }));
   }

   //#region Construct and return new ASN.1 schema for this object
   return (new asn1js.Sequence({
     value: sequenceValue
   }));
   //#endregion
 }

 public toJSON(): OriginatorInfoJson {
   const res: OriginatorInfoJson = {};

   if (this.certs) {
     res.certs = this.certs.toJSON();
   }

   if (this.crls) {
     res.crls = this.crls.toJSON();
   }

   return res;
 }

}