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import * as asn1js from "asn1js";
import * as pvutils from "pvutils";
import { EMPTY_STRING } from "./constants";
import { AsnError } from "./errors";
import { PkiObject, PkiObjectParameters } from "./PkiObject";
import * as Schema from "./Schema";
const REQUIRE_EXPLICIT_POLICY = "requireExplicitPolicy";
const INHIBIT_POLICY_MAPPING = "inhibitPolicyMapping";
const CLEAR_PROPS = [
REQUIRE_EXPLICIT_POLICY,
INHIBIT_POLICY_MAPPING,
];
export interface IPolicyConstraints {
requireExplicitPolicy?: number;
inhibitPolicyMapping?: number;
}
export interface PolicyConstraintsJson {
requireExplicitPolicy?: number;
inhibitPolicyMapping?: number;
}
export type PolicyConstraintsParameters = PkiObjectParameters & Partial<IPolicyConstraints>;
/**
* Represents the PolicyConstraints structure described in [RFC5280](https://datatracker.ietf.org/doc/html/rfc5280)
*/
export class PolicyConstraints extends PkiObject implements IPolicyConstraints {
public static override CLASS_NAME = "PolicyConstraints";
public requireExplicitPolicy?: number;
public inhibitPolicyMapping?: number;
/**
* Initializes a new instance of the {@link PolicyConstraints} class
* @param parameters Initialization parameters
*/
constructor(parameters: PolicyConstraintsParameters = {}) {
super();
if (REQUIRE_EXPLICIT_POLICY in parameters) {
this.requireExplicitPolicy = pvutils.getParametersValue(parameters, REQUIRE_EXPLICIT_POLICY, PolicyConstraints.defaultValues(REQUIRE_EXPLICIT_POLICY));
}
if (INHIBIT_POLICY_MAPPING in parameters) {
this.inhibitPolicyMapping = pvutils.getParametersValue(parameters, INHIBIT_POLICY_MAPPING, PolicyConstraints.defaultValues(INHIBIT_POLICY_MAPPING));
}
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 REQUIRE_EXPLICIT_POLICY): number;
public static override defaultValues(memberName: typeof INHIBIT_POLICY_MAPPING): number;
public static override defaultValues(memberName: string): any {
switch (memberName) {
case REQUIRE_EXPLICIT_POLICY:
return 0;
case INHIBIT_POLICY_MAPPING:
return 0;
default:
return super.defaultValues(memberName);
}
}
/**
* @inheritdoc
* @asn ASN.1 schema
* ```asn
* PolicyConstraints ::= SEQUENCE {
* requireExplicitPolicy [0] SkipCerts OPTIONAL,
* inhibitPolicyMapping [1] SkipCerts OPTIONAL }
*
* SkipCerts ::= INTEGER (0..MAX)
*```
*/
public static override schema(parameters: Schema.SchemaParameters<{
requireExplicitPolicy?: string;
inhibitPolicyMapping?: 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.Primitive({
name: (names.requireExplicitPolicy || EMPTY_STRING),
optional: true,
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
}
}), // IMPLICIT integer value
new asn1js.Primitive({
name: (names.inhibitPolicyMapping || EMPTY_STRING),
optional: true,
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 1 // [1]
}
}) // IMPLICIT integer 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,
PolicyConstraints.schema({
names: {
requireExplicitPolicy: REQUIRE_EXPLICIT_POLICY,
inhibitPolicyMapping: INHIBIT_POLICY_MAPPING
}
})
);
AsnError.assertSchema(asn1, this.className);
//#region Get internal properties from parsed schema
if (REQUIRE_EXPLICIT_POLICY in asn1.result) {
const field1 = asn1.result.requireExplicitPolicy;
field1.idBlock.tagClass = 1; // UNIVERSAL
field1.idBlock.tagNumber = 2; // INTEGER
const ber1 = field1.toBER(false);
const int1 = asn1js.fromBER(ber1);
AsnError.assert(int1, "Integer");
this.requireExplicitPolicy = (int1.result as asn1js.Integer).valueBlock.valueDec;
}
if (INHIBIT_POLICY_MAPPING in asn1.result) {
const field2 = asn1.result.inhibitPolicyMapping;
field2.idBlock.tagClass = 1; // UNIVERSAL
field2.idBlock.tagNumber = 2; // INTEGER
const ber2 = field2.toBER(false);
const int2 = asn1js.fromBER(ber2);
AsnError.assert(int2, "Integer");
this.inhibitPolicyMapping = (int2.result as asn1js.Integer).valueBlock.valueDec;
}
//#endregion
}
public toSchema(): asn1js.Sequence {
//#region Create correct values for output sequence
const outputArray = [];
if (REQUIRE_EXPLICIT_POLICY in this) {
const int1 = new asn1js.Integer({ value: this.requireExplicitPolicy });
int1.idBlock.tagClass = 3; // CONTEXT-SPECIFIC
int1.idBlock.tagNumber = 0; // [0]
outputArray.push(int1);
}
if (INHIBIT_POLICY_MAPPING in this) {
const int2 = new asn1js.Integer({ value: this.inhibitPolicyMapping });
int2.idBlock.tagClass = 3; // CONTEXT-SPECIFIC
int2.idBlock.tagNumber = 1; // [1]
outputArray.push(int2);
}
//#endregion
//#region Construct and return new ASN.1 schema for this object
return (new asn1js.Sequence({
value: outputArray
}));
//#endregion
}
public toJSON(): PolicyConstraintsJson {
const res: PolicyConstraintsJson = {};
if (REQUIRE_EXPLICIT_POLICY in this) {
res.requireExplicitPolicy = this.requireExplicitPolicy;
}
if (INHIBIT_POLICY_MAPPING in this) {
res.inhibitPolicyMapping = this.inhibitPolicyMapping;
}
return res;
}
}
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