@sphereon/openid4vci-client
Version:
OpenID for Verifiable Credential Issuance (OpenID4VCI) client
202 lines • 18.8 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AccessTokenClient = void 0;
const ssi_types_1 = require("@sphereon/ssi-types");
const debug_1 = __importDefault(require("debug"));
const MetadataClient_1 = require("./MetadataClient");
const functions_1 = require("./functions");
const types_1 = require("./types");
const debug = (0, debug_1.default)('sphereon:openid4vci:token');
class AccessTokenClient {
acquireAccessTokenUsingIssuanceInitiation({ issuanceInitiation, asOpts, pin, codeVerifier, code, redirectUri, metadata, }) {
return __awaiter(this, void 0, void 0, function* () {
const { issuanceInitiationRequest } = issuanceInitiation;
const isPinRequired = this.isPinRequiredValue(issuanceInitiationRequest);
const issuerOpts = { issuer: issuanceInitiationRequest.issuer };
return yield this.acquireAccessTokenUsingRequest({
accessTokenRequest: yield this.createAccessTokenRequest({
issuanceInitiation,
asOpts,
codeVerifier,
code,
redirectUri,
pin,
}),
isPinRequired,
metadata,
asOpts,
issuerOpts,
});
});
}
acquireAccessTokenUsingRequest({ accessTokenRequest, isPinRequired, metadata, asOpts, issuerOpts, }) {
return __awaiter(this, void 0, void 0, function* () {
this.validate(accessTokenRequest, isPinRequired);
const requestTokenURL = AccessTokenClient.determineTokenURL({
asOpts,
issuerOpts,
metadata: metadata
? metadata
: (issuerOpts === null || issuerOpts === void 0 ? void 0 : issuerOpts.fetchMetadata)
? yield MetadataClient_1.MetadataClient.retrieveAllMetadata(issuerOpts.issuer, { errorOnNotFound: false })
: undefined,
});
return this.sendAuthCode(requestTokenURL, accessTokenRequest);
});
}
createAccessTokenRequest({ issuanceInitiation, asOpts, pin, codeVerifier, code, redirectUri, }) {
return __awaiter(this, void 0, void 0, function* () {
const issuanceInitiationRequest = issuanceInitiation.issuanceInitiationRequest;
issuanceInitiationRequest;
const request = {};
if (asOpts === null || asOpts === void 0 ? void 0 : asOpts.clientId) {
request.client_id = asOpts.clientId;
}
this.assertNumericPin(this.isPinRequiredValue(issuanceInitiationRequest), pin);
request.user_pin = pin;
if (issuanceInitiationRequest[types_1.PRE_AUTH_CODE_LITERAL]) {
if (codeVerifier) {
throw new Error('Cannot pass a code_verifier when flow type is pre-authorized');
}
request.grant_type = types_1.GrantTypes.PRE_AUTHORIZED_CODE;
request[types_1.PRE_AUTH_CODE_LITERAL] = issuanceInitiationRequest[types_1.PRE_AUTH_CODE_LITERAL];
}
if (issuanceInitiationRequest.op_state) {
this.throwNotSupportedFlow();
request.grant_type = types_1.GrantTypes.AUTHORIZATION_CODE;
}
if (codeVerifier) {
request.code_verifier = codeVerifier;
request.code = code;
request.redirect_uri = redirectUri;
request.grant_type = types_1.GrantTypes.AUTHORIZATION_CODE;
}
if (request.grant_type === types_1.GrantTypes.AUTHORIZATION_CODE && issuanceInitiationRequest[types_1.PRE_AUTH_CODE_LITERAL]) {
throw Error('A pre_authorized_code flow cannot have an op_state in the initiation request');
}
return request;
});
}
assertPreAuthorizedGrantType(grantType) {
if (types_1.GrantTypes.PRE_AUTHORIZED_CODE !== grantType) {
throw new Error("grant type must be 'urn:ietf:params:oauth:grant-type:pre-authorized_code'");
}
}
assertAuthorizationGrantType(grantType) {
if (types_1.GrantTypes.AUTHORIZATION_CODE !== grantType) {
throw new Error("grant type must be 'authorization_code'");
}
}
isPinRequiredValue(issuanceInitiationRequest) {
let isPinRequired = false;
if (issuanceInitiationRequest !== undefined) {
if (typeof issuanceInitiationRequest.user_pin_required === 'string') {
isPinRequired = issuanceInitiationRequest.user_pin_required.toLowerCase() === 'true';
}
else if (typeof issuanceInitiationRequest.user_pin_required === 'boolean') {
isPinRequired = issuanceInitiationRequest.user_pin_required;
}
}
debug(`Pin required for issuer ${issuanceInitiationRequest.issuer}: ${isPinRequired}`);
return isPinRequired;
}
assertNumericPin(isPinRequired, pin) {
if (isPinRequired) {
if (!pin || !/^\d{1,8}$/.test(pin)) {
debug(`Pin is not 1 to 8 digits long`);
throw new Error('A valid pin consisting of maximal 8 numeric characters must be present.');
}
}
else if (pin) {
debug(`Pin set, whilst not required`);
throw new Error('Cannot set a pin, when the pin is not required.');
}
}
assertNonEmptyPreAuthorizedCode(accessTokenRequest) {
if (!accessTokenRequest[types_1.PRE_AUTH_CODE_LITERAL]) {
debug(`No pre-authorized code present, whilst it is required`);
throw new Error('Pre-authorization must be proven by presenting the pre-authorized code. Code must be present.');
}
}
assertNonEmptyCodeVerifier(accessTokenRequest) {
if (!accessTokenRequest.code_verifier) {
debug('No code_verifier present, whilst it is required');
throw new Error('Authorization flow requires the code_verifier to be present');
}
}
assertNonEmptyCode(accessTokenRequest) {
if (!accessTokenRequest.code) {
debug('No code present, whilst it is required');
throw new Error('Authorization flow requires the code to be present');
}
}
assertNonEmptyRedirectUri(accessTokenRequest) {
if (!accessTokenRequest.redirect_uri) {
debug('No redirect_uri present, whilst it is required');
throw new Error('Authorization flow requires the redirect_uri to be present');
}
}
validate(accessTokenRequest, isPinRequired) {
if (accessTokenRequest.grant_type === types_1.GrantTypes.PRE_AUTHORIZED_CODE) {
this.assertPreAuthorizedGrantType(accessTokenRequest.grant_type);
this.assertNonEmptyPreAuthorizedCode(accessTokenRequest);
this.assertNumericPin(isPinRequired, accessTokenRequest.user_pin);
}
else if (accessTokenRequest.grant_type === types_1.GrantTypes.AUTHORIZATION_CODE) {
this.assertAuthorizationGrantType(accessTokenRequest.grant_type);
this.assertNonEmptyCodeVerifier(accessTokenRequest);
this.assertNonEmptyCode(accessTokenRequest);
this.assertNonEmptyRedirectUri(accessTokenRequest);
}
else {
this.throwNotSupportedFlow;
}
}
sendAuthCode(requestTokenURL, accessTokenRequest) {
return __awaiter(this, void 0, void 0, function* () {
return yield (0, functions_1.formPost)(requestTokenURL, (0, functions_1.convertJsonToURI)(accessTokenRequest));
});
}
static determineTokenURL({ asOpts, issuerOpts, metadata, }) {
if (!asOpts && !(metadata === null || metadata === void 0 ? void 0 : metadata.token_endpoint) && !issuerOpts) {
throw new Error('Cannot determine token URL if no issuer, metadata and no Authorization Server values are present');
}
const url = asOpts && asOpts.as
? this.creatTokenURLFromURL(asOpts.as, asOpts === null || asOpts === void 0 ? void 0 : asOpts.allowInsecureEndpoints, asOpts.tokenEndpoint)
: (metadata === null || metadata === void 0 ? void 0 : metadata.token_endpoint)
? metadata.token_endpoint
: this.creatTokenURLFromURL(issuerOpts.issuer, asOpts === null || asOpts === void 0 ? void 0 : asOpts.allowInsecureEndpoints, issuerOpts.tokenEndpoint);
if (!url || !ssi_types_1.ObjectUtils.isString(url)) {
throw new Error('No authorization server token URL present. Cannot acquire access token');
}
debug(`Token endpoint determined to be ${url}`);
return url;
}
static creatTokenURLFromURL(url, allowInsecureEndpoints, tokenEndpoint) {
if (allowInsecureEndpoints !== true && url.startsWith('http://')) {
throw Error(`Unprotected token endpoints are not allowed ${url}`);
}
const hostname = url.replace(/https?:\/\//, '').replace(/\/$/, '');
const endpoint = tokenEndpoint ? (tokenEndpoint.startsWith('/') ? tokenEndpoint : tokenEndpoint.substring(1)) : '/token';
// We always require https
return `https://${hostname}${endpoint}`;
}
throwNotSupportedFlow() {
debug(`Only pre-authorized flow supported.`);
throw new Error('Only pre-authorized-code flow is supported');
}
}
exports.AccessTokenClient = AccessTokenClient;
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