@govtechsg/open-attestation
Version:
43 lines (42 loc) • 1.98 kB
JavaScript
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
import { cloneDeep, pick, unset } from "lodash";
import { flatten } from "../shared/serialize/flatten";
import { toBuffer } from "../shared/utils";
export var obfuscateData = function (_data, fields) {
var data = cloneDeep(_data); // Prevents alteration of original data
var fieldsToRemove = Array.isArray(fields) ? fields : [fields];
// Obfuscate data by hashing them with the key
var dataToObfuscate = flatten(pick(data, fieldsToRemove));
var obfuscatedData = Object.keys(dataToObfuscate).map(function (k) {
var obj = {};
obj[k] = dataToObfuscate[k];
return toBuffer(obj).toString("hex");
});
// Return remaining data
fieldsToRemove.forEach(function (path) {
unset(data, path);
});
return {
data: data,
obfuscatedData: obfuscatedData,
};
};
// TODO the return type could be improve by using Exclude eventually to remove the obfuscated properties
export var obfuscateDocument = function (document, fields) {
var _a, _b;
var existingData = document.data;
var _c = obfuscateData(existingData, fields), data = _c.data, obfuscatedData = _c.obfuscatedData;
var currentObfuscatedData = (_b = (_a = document === null || document === void 0 ? void 0 : document.privacy) === null || _a === void 0 ? void 0 : _a.obfuscatedData) !== null && _b !== void 0 ? _b : [];
var newObfuscatedData = currentObfuscatedData.concat(obfuscatedData);
return __assign(__assign({}, document), { data: data, privacy: __assign(__assign({}, document.privacy), { obfuscatedData: newObfuscatedData }) });
};