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import { CompactEncrypt } from '../jwe/compact/encrypt.js';
import { JWTClaimsBuilder } from '../lib/jwt_claims_set.js';
export class EncryptJWT {
#cek;
#iv;
#keyManagementParameters;
#protectedHeader;
#replicateIssuerAsHeader;
#replicateSubjectAsHeader;
#replicateAudienceAsHeader;
#jwt;
constructor(payload = {}) {
this.#jwt = new JWTClaimsBuilder(payload);
}
setIssuer(issuer) {
this.#jwt.iss = issuer;
return this;
}
setSubject(subject) {
this.#jwt.sub = subject;
return this;
}
setAudience(audience) {
this.#jwt.aud = audience;
return this;
}
setJti(jwtId) {
this.#jwt.jti = jwtId;
return this;
}
setNotBefore(input) {
this.#jwt.nbf = input;
return this;
}
setExpirationTime(input) {
this.#jwt.exp = input;
return this;
}
setIssuedAt(input) {
this.#jwt.iat = input;
return this;
}
setProtectedHeader(protectedHeader) {
if (this.#protectedHeader) {
throw new TypeError('setProtectedHeader can only be called once');
}
this.#protectedHeader = protectedHeader;
return this;
}
setKeyManagementParameters(parameters) {
if (this.#keyManagementParameters) {
throw new TypeError('setKeyManagementParameters can only be called once');
}
this.#keyManagementParameters = parameters;
return this;
}
setContentEncryptionKey(cek) {
if (this.#cek) {
throw new TypeError('setContentEncryptionKey can only be called once');
}
this.#cek = cek;
return this;
}
setInitializationVector(iv) {
if (this.#iv) {
throw new TypeError('setInitializationVector can only be called once');
}
this.#iv = iv;
return this;
}
replicateIssuerAsHeader() {
this.#replicateIssuerAsHeader = true;
return this;
}
replicateSubjectAsHeader() {
this.#replicateSubjectAsHeader = true;
return this;
}
replicateAudienceAsHeader() {
this.#replicateAudienceAsHeader = true;
return this;
}
async encrypt(key, options) {
const enc = new CompactEncrypt(this.#jwt.data());
if (this.#protectedHeader &&
(this.#replicateIssuerAsHeader ||
this.#replicateSubjectAsHeader ||
this.#replicateAudienceAsHeader)) {
this.#protectedHeader = {
...this.#protectedHeader,
iss: this.#replicateIssuerAsHeader ? this.#jwt.iss : undefined,
sub: this.#replicateSubjectAsHeader ? this.#jwt.sub : undefined,
aud: this.#replicateAudienceAsHeader ? this.#jwt.aud : undefined,
};
}
enc.setProtectedHeader(this.#protectedHeader);
if (this.#iv) {
enc.setInitializationVector(this.#iv);
}
if (this.#cek) {
enc.setContentEncryptionKey(this.#cek);
}
if (this.#keyManagementParameters) {
enc.setKeyManagementParameters(this.#keyManagementParameters);
}
return enc.encrypt(key, options);
}
}