@sphereon/pex
Version:
A Typescript implementation of the v1 and v2 DIF Presentation Exchange specification
63 lines • 6.13 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.FormatRestrictionEvaluationHandler = void 0;
const ConstraintUtils_1 = require("../../ConstraintUtils");
const Messages_1 = __importDefault(require("../../types/Messages"));
const abstractEvaluationHandler_1 = require("./abstractEvaluationHandler");
class FormatRestrictionEvaluationHandler extends abstractEvaluationHandler_1.AbstractEvaluationHandler {
constructor(client) {
super(client);
}
getName() {
return 'FormatRestrictionEvaluation';
}
handle(pd, wrappedVcs) {
const restrictToFormats = this.client.restrictToFormats ? Object.keys(this.client.restrictToFormats) : undefined;
pd.input_descriptors.forEach((_inputDescriptor, index) => {
wrappedVcs.forEach((wvc, vcIndex) => {
const formats = 'format' in _inputDescriptor && _inputDescriptor.format ? Object.keys(_inputDescriptor.format) : [wvc.format];
let allowedFormats = restrictToFormats !== null && restrictToFormats !== void 0 ? restrictToFormats : formats;
if ('format' in _inputDescriptor && _inputDescriptor.format && restrictToFormats !== undefined) {
// Take the instersection, as an argument has been supplied for restrictions
allowedFormats = Object.keys(_inputDescriptor.format).filter((k) => restrictToFormats.includes(k));
}
if (allowedFormats.includes(wvc.format)) {
this.getResults().push(this.generateSuccessResult(index, `$[${vcIndex}]`, wvc, `${wvc.format} is allowed from ${JSON.stringify(allowedFormats)}`));
}
else {
this.getResults().push(this.generateErrorResult(index, `$[${vcIndex}]`, wvc));
}
});
});
this.updatePresentationSubmission(pd);
}
generateErrorResult(idIdx, vcPath, wvc) {
return {
input_descriptor_path: `$.input_descriptors[${idIdx}]`,
evaluator: this.getName(),
status: ConstraintUtils_1.Status.ERROR,
message: Messages_1.default.FORMAT_RESTRICTION_DIDNT_PASS,
verifiable_credential_path: vcPath,
payload: {
format: wvc.format,
},
};
}
generateSuccessResult(idIdx, vcPath, wvc, message) {
return {
input_descriptor_path: `$.input_descriptors[${idIdx}]`,
evaluator: this.getName(),
status: ConstraintUtils_1.Status.INFO,
message: message !== null && message !== void 0 ? message : Messages_1.default.FORMAT_RESTRICTION_PASSED,
verifiable_credential_path: vcPath,
payload: {
format: wvc.format,
},
};
}
}
exports.FormatRestrictionEvaluationHandler = FormatRestrictionEvaluationHandler;
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