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import * as asn1js from "asn1js";
import * as pvutils from "pvutils";
import { EMPTY_STRING } from "./constants";
import { AsnError } from "./errors";
import { IssuerAndSerialNumber, IssuerAndSerialNumberJson } from "./IssuerAndSerialNumber";
import { PkiObject, PkiObjectParameters } from "./PkiObject";
import * as Schema from "./Schema";
const VARIANT = "variant";
const VALUE = "value";
const CLEAR_PROPS = [
"blockName"
];
export interface IRecipientIdentifier {
variant: number;
value: IssuerAndSerialNumber | asn1js.OctetString;
}
export interface RecipientIdentifierJson {
variant: number;
value?: IssuerAndSerialNumberJson | asn1js.OctetStringJson;
}
export type RecipientIdentifierParameters = PkiObjectParameters & Partial<IRecipientIdentifier>;
export type RecipientIdentifierSchema = Schema.SchemaParameters;
/**
* Represents the RecipientIdentifier structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
*/
export class RecipientIdentifier extends PkiObject implements IRecipientIdentifier {
public static override CLASS_NAME = "RecipientIdentifier";
public variant!: number;
public value!: IssuerAndSerialNumber | asn1js.OctetString;
/**
* Initializes a new instance of the {@link RecipientIdentifier} class
* @param parameters Initialization parameters
*/
constructor(parameters: RecipientIdentifierParameters = {}) {
super();
this.variant = pvutils.getParametersValue(parameters, VARIANT, RecipientIdentifier.defaultValues(VARIANT));
if (VALUE in parameters) {
this.value = pvutils.getParametersValue(parameters, VALUE, RecipientIdentifier.defaultValues(VALUE));
}
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 VARIANT): number;
public static override defaultValues(memberName: typeof VALUE): any;
public static override defaultValues(memberName: string): any {
switch (memberName) {
case VARIANT:
return (-1);
case VALUE:
return {};
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 VARIANT:
return (memberValue === (-1));
case VALUE:
return (Object.keys(memberValue).length === 0);
default:
return super.defaultValues(memberName);
}
}
/**
* @inheritdoc
* @asn ASN.1 schema
* ```asn
* RecipientIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* subjectKeyIdentifier [0] SubjectKeyIdentifier }
*
* SubjectKeyIdentifier ::= OCTET STRING
*```
*/
public static override schema(parameters: RecipientIdentifierSchema = {}): Schema.SchemaType {
const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
return (new asn1js.Choice({
value: [
IssuerAndSerialNumber.schema({
names: {
blockName: (names.blockName || EMPTY_STRING)
}
}),
new asn1js.Primitive({
name: (names.blockName || EMPTY_STRING),
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
}
})
]
}));
}
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,
RecipientIdentifier.schema({
names: {
blockName: "blockName"
}
})
);
AsnError.assertSchema(asn1, this.className);
// Get internal properties from parsed schema
if (asn1.result.blockName.idBlock.tagClass === 1) {
this.variant = 1;
this.value = new IssuerAndSerialNumber({ schema: asn1.result.blockName });
} else {
this.variant = 2;
this.value = new asn1js.OctetString({ valueHex: asn1.result.blockName.valueBlock.valueHex });
}
}
public toSchema(): asn1js.BaseBlock<any> {
// Construct and return new ASN.1 schema for this object
switch (this.variant) {
case 1:
if (!(this.value instanceof IssuerAndSerialNumber)) {
throw new Error("Incorrect type of RecipientIdentifier.value. It should be IssuerAndSerialNumber.");
}
return this.value.toSchema();
case 2:
if (!(this.value instanceof asn1js.OctetString)) {
throw new Error("Incorrect type of RecipientIdentifier.value. It should be ASN.1 OctetString.");
}
return new asn1js.Primitive({
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
valueHex: this.value.valueBlock.valueHexView
});
default:
return new asn1js.Any() as any;
}
}
public toJSON(): RecipientIdentifierJson {
const res: RecipientIdentifierJson = {
variant: this.variant
};
if ((this.variant === 1 || this.variant === 2) && this.value) {
res.value = this.value.toJSON();
}
return res;
}
}
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