eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
64 lines (63 loc) • 2.34 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/S1523/javascript
// SQ key 'eval'
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const core_js_1 = require("../external/core.js");
const index_js_1 = require("../helpers/index.js");
const meta_js_1 = require("./meta.js");
const noScriptUrlRule = (0, core_js_1.getESLintCoreRule)('no-script-url');
exports.rule = {
meta: (0, index_js_1.generateMeta)(meta_js_1.meta, {
messages: {
safeCode: 'Make sure that this dynamic injection or execution of code is safe.',
unexpectedScriptURL: "Make sure that 'javascript:' code is safe as it is a form of eval().",
},
}),
create(context) {
return {
CallExpression: (node) => checkCallExpression(node, context),
NewExpression: (node) => checkCallExpression(node, context),
...noScriptUrlRule.create(context),
};
},
};
function checkCallExpression(node, context) {
if (node.callee.type === 'Identifier') {
const { name } = node.callee;
if ((name === 'eval' || name === 'Function') && hasAtLeastOneVariableArgument(node.arguments)) {
context.report({
messageId: 'safeCode',
node: node.callee,
});
}
}
}
function hasAtLeastOneVariableArgument(args) {
return !!args.find(arg => !isLiteral(arg));
}
function isLiteral(node) {
if (node.type === 'Literal') {
return true;
}
if (node.type === 'TemplateLiteral') {
return node.expressions.length === 0;
}
return false;
}