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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, IssuerAndSerialNumberSchema } from "./IssuerAndSerialNumber";
import { PkiObject, PkiObjectParameters } from "./PkiObject";
import { RecipientKeyIdentifier, RecipientKeyIdentifierJson, RecipientKeyIdentifierSchema } from "./RecipientKeyIdentifier";
import * as Schema from "./Schema";
const VARIANT = "variant";
const VALUE = "value";
const CLEAR_PROPS = [
"blockName",
];
export interface IKeyAgreeRecipientIdentifier {
variant: number;
value: any;
}
export interface KeyAgreeRecipientIdentifierJson {
variant: number;
value?: IssuerAndSerialNumberJson | RecipientKeyIdentifierJson;
}
export type KeyAgreeRecipientIdentifierParameters = PkiObjectParameters & Partial<IKeyAgreeRecipientIdentifier>;
export type KeyAgreeRecipientIdentifierSchema = Schema.SchemaParameters<{
issuerAndSerialNumber?: IssuerAndSerialNumberSchema;
rKeyId?: RecipientKeyIdentifierSchema;
}>;
/**
* Represents the KeyAgreeRecipientIdentifier structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
*/
export class KeyAgreeRecipientIdentifier extends PkiObject implements IKeyAgreeRecipientIdentifier {
public static override CLASS_NAME = "KeyAgreeRecipientIdentifier";
public variant!: number;
public value: any;
/**
* Initializes a new instance of the {@link KeyAgreeRecipientIdentifier} class
* @param parameters Initialization parameters
*/
constructor(parameters: KeyAgreeRecipientIdentifierParameters = {}) {
super();
this.variant = pvutils.getParametersValue(parameters, VARIANT, KeyAgreeRecipientIdentifier.defaultValues(VARIANT));
this.value = pvutils.getParametersValue(parameters, VALUE, KeyAgreeRecipientIdentifier.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
* KeyAgreeRecipientIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* rKeyId [0] IMPLICIT RecipientKeyIdentifier }
*```
*/
public static override schema(parameters: KeyAgreeRecipientIdentifierSchema = {}): Schema.SchemaType {
const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
return (new asn1js.Choice({
value: [
IssuerAndSerialNumber.schema(names.issuerAndSerialNumber || {
names: {
blockName: (names.blockName || EMPTY_STRING)
}
}),
new asn1js.Constructed({
name: (names.blockName || EMPTY_STRING),
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: RecipientKeyIdentifier.schema(names.rKeyId || {
names: {
blockName: (names.blockName || EMPTY_STRING)
}
}).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,
KeyAgreeRecipientIdentifier.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 RecipientKeyIdentifier({
schema: new asn1js.Sequence({
value: asn1.result.blockName.valueBlock.value
})
});
}
}
public toSchema(): asn1js.BaseBlock<any> {
//#region Construct and return new ASN.1 schema for this object
switch (this.variant) {
case 1:
return this.value.toSchema();
case 2:
return new asn1js.Constructed({
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: this.value.toSchema().valueBlock.value
});
default:
return new asn1js.Any() as any;
}
//#endregion
}
public toJSON(): KeyAgreeRecipientIdentifierJson {
const res: KeyAgreeRecipientIdentifierJson = {
variant: this.variant,
};
if ((this.variant === 1) || (this.variant === 2)) {
res.value = this.value.toJSON();
}
return res;
}
}