eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
55 lines (54 loc) • 2.59 kB
JavaScript
;
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
// https://sonarsource.github.io/rspec/#/rspec/S5736/javascript
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const index_js_1 = require("../helpers/index.js");
const meta_js_1 = require("./meta.js");
const HELMET = 'helmet';
const POLICY = 'policy';
const REFERRER_POLICY = 'referrerPolicy';
const UNSAFE_REFERRER_POLICY_VALUES = ['', 'unsafe-url', 'no-referrer-when-downgrade'];
exports.rule = index_js_1.Express.SensitiveMiddlewarePropertyRule(findNoReferrerPolicyPropertyFromHelmet, `Make sure disabling strict HTTP no-referrer policy is safe here.`, (0, index_js_1.generateMeta)(meta_js_1.meta, undefined, true));
function findNoReferrerPolicyPropertyFromHelmet(context, node) {
let sensitive;
const { callee, arguments: args } = node;
if (args.length === 1) {
const [options] = args;
/* helmet({ referrerPolicy: false }) or helmet.referrerPolicy({ policy: <unsafe_value> }) */
const fqn = (0, index_js_1.getFullyQualifiedName)(context, callee);
if (fqn === HELMET && options.type === 'ObjectExpression') {
sensitive = (0, index_js_1.getPropertyWithValue)(context, options, REFERRER_POLICY, false);
}
else if (fqn === `${HELMET}.${REFERRER_POLICY}`) {
const maybePolicy = (0, index_js_1.getProperty)(options, POLICY, context);
if (maybePolicy && !isSafePolicy(maybePolicy)) {
sensitive = maybePolicy;
}
}
}
return sensitive ? [sensitive] : [];
}
function isSafePolicy(policy) {
const { value } = policy;
const values = value.type === 'ArrayExpression' ? value.elements : [value];
const sensitiveValue = values.find(v => v?.type === 'Literal' &&
typeof v.value === 'string' &&
UNSAFE_REFERRER_POLICY_VALUES.includes(v.value));
return !Boolean(sensitiveValue);
}