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import * as asn1js from "asn1js";
import * as pvutils from "pvutils";
import { AttributeTypeAndValue, AttributeTypeAndValueJson } from "./AttributeTypeAndValue";
import { EMPTY_BUFFER, EMPTY_STRING } from "./constants";
import { AsnError } from "./errors";
import { PkiObject, PkiObjectParameters } from "./PkiObject";
import * as Schema from "./Schema";
export const TYPE_AND_VALUES = "typesAndValues";
export const VALUE_BEFORE_DECODE = "valueBeforeDecode";
export const RDN = "RDN";
export interface IRelativeDistinguishedNames {
/**
* Array of "type and value" objects
*/
typesAndValues: AttributeTypeAndValue[];
/**
* Value of the RDN before decoding from schema
*/
valueBeforeDecode: ArrayBuffer;
}
export type RelativeDistinguishedNamesParameters = PkiObjectParameters & Partial<IRelativeDistinguishedNames>;
export type RelativeDistinguishedNamesSchema = Schema.SchemaParameters<{
repeatedSequence?: string;
repeatedSet?: string;
typeAndValue?: Schema.SchemaType;
}>;
export interface RelativeDistinguishedNamesJson {
typesAndValues: AttributeTypeAndValueJson[];
}
/**
* Represents the RelativeDistinguishedNames structure described in [RFC5280](https://datatracker.ietf.org/doc/html/rfc5280)
*/
export class RelativeDistinguishedNames extends PkiObject implements IRelativeDistinguishedNames {
public static override CLASS_NAME = "RelativeDistinguishedNames";
public typesAndValues!: AttributeTypeAndValue[];
public valueBeforeDecode!: ArrayBuffer;
/**
* Initializes a new instance of the {@link RelativeDistinguishedNames} class
* @param parameters Initialization parameters
*/
constructor(parameters: RelativeDistinguishedNamesParameters = {}) {
super();
this.typesAndValues = pvutils.getParametersValue(parameters, TYPE_AND_VALUES, RelativeDistinguishedNames.defaultValues(TYPE_AND_VALUES));
this.valueBeforeDecode = pvutils.getParametersValue(parameters, VALUE_BEFORE_DECODE, RelativeDistinguishedNames.defaultValues(VALUE_BEFORE_DECODE));
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 TYPE_AND_VALUES): AttributeTypeAndValue[];
public static override defaultValues(memberName: typeof VALUE_BEFORE_DECODE): ArrayBuffer;
public static override defaultValues(memberName: string): any {
switch (memberName) {
case TYPE_AND_VALUES:
return [];
case VALUE_BEFORE_DECODE:
return EMPTY_BUFFER;
default:
return super.defaultValues(memberName);
}
}
/**
* Compares 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 TYPE_AND_VALUES:
return (memberValue.length === 0);
case VALUE_BEFORE_DECODE:
return (memberValue.byteLength === 0);
default:
return super.defaultValues(memberName);
}
}
/**
* @inheritdoc
* @asn ASN.1 schema
* ```asn
* RDNSequence ::= Sequence OF RelativeDistinguishedName
*
* RelativeDistinguishedName ::=
* SET SIZE (1..MAX) OF AttributeTypeAndValue
*```
*/
static override schema(parameters: RelativeDistinguishedNamesSchema = {}): Schema.SchemaType {
const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
return (new asn1js.Sequence({
name: (names.blockName || EMPTY_STRING),
value: [
new asn1js.Repeated({
name: (names.repeatedSequence || EMPTY_STRING),
value: new asn1js.Set({
value: [
new asn1js.Repeated({
name: (names.repeatedSet || EMPTY_STRING),
value: AttributeTypeAndValue.schema(names.typeAndValue || {})
})
]
} as any)
} as any)
]
} as any));
}
public fromSchema(schema: Schema.SchemaType): void {
// Clear input data first
pvutils.clearProps(schema, [
RDN,
TYPE_AND_VALUES
]);
// Check the schema is valid
const asn1 = asn1js.compareSchema(schema,
schema,
RelativeDistinguishedNames.schema({
names: {
blockName: RDN,
repeatedSet: TYPE_AND_VALUES
}
})
);
AsnError.assertSchema(asn1, this.className);
// Get internal properties from parsed schema
if (TYPE_AND_VALUES in asn1.result) {// Could be a case when there is no "types and values"
this.typesAndValues = Array.from(asn1.result.typesAndValues, element => new AttributeTypeAndValue({ schema: element }));
}
this.valueBeforeDecode = (asn1.result.RDN as asn1js.BaseBlock).valueBeforeDecodeView.slice().buffer;
}
public toSchema(): asn1js.Sequence {
if (this.valueBeforeDecode.byteLength === 0) // No stored encoded array, create "from scratch"
{
return (new asn1js.Sequence({
value: [new asn1js.Set({
value: Array.from(this.typesAndValues, o => o.toSchema())
} as any)]
} as any));
}
const asn1 = asn1js.fromBER(this.valueBeforeDecode);
AsnError.assert(asn1, "RelativeDistinguishedNames");
if (!(asn1.result instanceof asn1js.Sequence)) {
throw new Error("ASN.1 result should be SEQUENCE");
}
return asn1.result;
}
public toJSON(): RelativeDistinguishedNamesJson {
return {
typesAndValues: Array.from(this.typesAndValues, o => o.toJSON())
};
}
/**
* Compares two RDN values, or RDN with ArrayBuffer value
* @param compareTo The value compare to current
*/
public isEqual(compareTo: unknown): boolean {
if (compareTo instanceof RelativeDistinguishedNames) {
if (this.typesAndValues.length !== compareTo.typesAndValues.length)
return false;
for (const [index, typeAndValue] of this.typesAndValues.entries()) {
if (typeAndValue.isEqual(compareTo.typesAndValues[index]) === false)
return false;
}
return true;
}
if (compareTo instanceof ArrayBuffer) {
return pvutils.isEqualBuffer(this.valueBeforeDecode, compareTo);
}
return false;
}
}
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