dcc-decoder
Version:
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115 lines (114 loc) • 5.43 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.loadDCCConfigData = exports.buildValuesetsComputed = exports.decodeOnly = exports.decodeAndValidateRules = exports.CERT_TYPE = void 0;
const verifier_1 = __importDefault(require("./verifier"));
const rules_runner_1 = require("./rules-runner");
const util_1 = require("./util");
const hcert_1 = require("./types/hcert");
Object.defineProperty(exports, "CERT_TYPE", { enumerable: true, get: function () { return hcert_1.CERT_TYPE; } });
const findMostRecent = (results) => {
// if vaccine find latest vaccine
// if recovery find latest
// if test find latest test
// if mixture reyurn vaccine / recovery / test
let latestV;
let latestR;
let latestT;
for (const item of results) {
if (item.type === hcert_1.CERT_TYPE.VACCINE) {
if (!latestV ||
new Date(item.rawCert.v[0].dt) > new Date(latestV.rawCert.v[0].dt)) {
latestV = item;
}
}
else if (item.type === hcert_1.CERT_TYPE.RECOVERY) {
if (!latestR ||
new Date(item.rawCert.r[0].du) > new Date(latestR.rawCert.r[0].du)) {
latestR = item;
}
}
else if (item.type === hcert_1.CERT_TYPE.TEST) {
if (!latestT ||
new Date(item.rawCert.t[0].sc) > new Date(latestT.rawCert.t[0].sc)) {
latestT = item;
}
}
}
return latestV || latestR || latestT || results[0];
};
const decodeOnly = (inputs) => __awaiter(void 0, void 0, void 0, function* () {
const dcc = inputs.dccData;
if (!(dcc && dcc.signingKeys)) {
throw new Error('You must provide keys');
}
if (!(dcc && dcc.valueSets)) {
throw new Error('You must provide value sets');
}
const results = [];
for (const source of inputs.source) {
const result = yield verifier_1.default(source, dcc.signingKeys);
if (result.rawCert) {
result.cert = util_1.populateCertValues(result.rawCert, result.type, dcc.valueSets);
}
results.push(result);
}
return findMostRecent(results);
});
exports.decodeOnly = decodeOnly;
const buildValuesetsComputed = (valuesets) => {
return Object.keys(valuesets).reduce((acc, key) => {
acc[valuesets[key].valueSetId] = Object.keys(valuesets[key].valueSetValues);
return acc;
}, {});
};
exports.buildValuesetsComputed = buildValuesetsComputed;
const loadDCCConfigData = (url) => __awaiter(void 0, void 0, void 0, function* () {
return yield util_1.getDCCData(url);
});
exports.loadDCCConfigData = loadDCCConfigData;
const decodeAndValidateRules = (inputs) => __awaiter(void 0, void 0, void 0, function* () {
const result = yield decodeOnly(inputs);
if (!result || result.error) {
return result;
}
const dcc = inputs.dccData;
const ruleErrors = [];
const ruleset = dcc.ruleSet && dcc.ruleSet[inputs.ruleCountry];
if (ruleset) {
const results = rules_runner_1.runRuleSet(ruleset, {
payload: result.rawCert,
external: {
valueSets: dcc.valuesetsComputed,
validationClock: inputs.validationClock
? inputs.validationClock
: new Date().toISOString(),
},
});
// console.log('RESULTS:', results)
if (results && !results.allSatisfied) {
Object.keys((results === null || results === void 0 ? void 0 : results.ruleEvaluations) || {}).forEach(ruleId => {
var _a, _b, _c, _d;
const ruleResult = results === null || results === void 0 ? void 0 : results.ruleEvaluations[ruleId];
const rule = ruleset.find(r => r.Identifier === ruleId);
if (ruleResult === false || ruleResult instanceof Error) {
const desc = (_b = (_a = rule === null || rule === void 0 ? void 0 : rule.Description) === null || _a === void 0 ? void 0 : _a.find(d => d.lang === inputs.ruleLang)) !== null && _b !== void 0 ? _b : (_c = rule === null || rule === void 0 ? void 0 : rule.Description) === null || _c === void 0 ? void 0 : _c.find(d => d.lang === 'en');
ruleErrors.push({ id: ruleId, description: (_d = desc === null || desc === void 0 ? void 0 : desc.desc) !== null && _d !== void 0 ? _d : ruleId });
}
});
}
}
return Object.assign(Object.assign({}, result), { ruleErrors });
});
exports.decodeAndValidateRules = decodeAndValidateRules;