Server IP : 150.95.80.236 / Your IP : 18.222.110.5 Web Server : Apache System : Linux host-150-95-80-236 3.10.0-1160.105.1.el7.x86_64 #1 SMP Thu Dec 7 15:39:45 UTC 2023 x86_64 User : social-telecare ( 10000) PHP Version : 7.4.33 Disable Function : opcache_get_status MySQL : OFF | cURL : ON | WGET : OFF | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /var/www/vhosts/pcu.in.th/api-uat.pcu.in.th/node_modules/eslint/lib/rules/ |
Upload File : |
/** * @fileoverview Validate strings passed to the RegExp constructor * @author Michael Ficarra */ "use strict"; //------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ const RegExpValidator = require("@eslint-community/regexpp").RegExpValidator; const validator = new RegExpValidator(); const validFlags = /[dgimsuvy]/gu; const undefined1 = void 0; //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ /** @type {import('../shared/types').Rule} */ module.exports = { meta: { type: "problem", docs: { description: "Disallow invalid regular expression strings in `RegExp` constructors", recommended: true, url: "https://eslint.org/docs/latest/rules/no-invalid-regexp" }, schema: [{ type: "object", properties: { allowConstructorFlags: { type: "array", items: { type: "string" } } }, additionalProperties: false }], messages: { regexMessage: "{{message}}." } }, create(context) { const options = context.options[0]; let allowedFlags = null; if (options && options.allowConstructorFlags) { const temp = options.allowConstructorFlags.join("").replace(validFlags, ""); if (temp) { allowedFlags = new RegExp(`[${temp}]`, "giu"); } } /** * Reports error with the provided message. * @param {ASTNode} node The node holding the invalid RegExp * @param {string} message The message to report. * @returns {void} */ function report(node, message) { context.report({ node, messageId: "regexMessage", data: { message } }); } /** * Check if node is a string * @param {ASTNode} node node to evaluate * @returns {boolean} True if its a string * @private */ function isString(node) { return node && node.type === "Literal" && typeof node.value === "string"; } /** * Gets flags of a regular expression created by the given `RegExp()` or `new RegExp()` call * Examples: * new RegExp(".") // => "" * new RegExp(".", "gu") // => "gu" * new RegExp(".", flags) // => null * @param {ASTNode} node `CallExpression` or `NewExpression` node * @returns {string|null} flags if they can be determined, `null` otherwise * @private */ function getFlags(node) { if (node.arguments.length < 2) { return ""; } if (isString(node.arguments[1])) { return node.arguments[1].value; } return null; } /** * Check syntax error in a given pattern. * @param {string} pattern The RegExp pattern to validate. * @param {Object} flags The RegExp flags to validate. * @param {boolean} [flags.unicode] The Unicode flag. * @param {boolean} [flags.unicodeSets] The UnicodeSets flag. * @returns {string|null} The syntax error. */ function validateRegExpPattern(pattern, flags) { try { validator.validatePattern(pattern, undefined1, undefined1, flags); return null; } catch (err) { return err.message; } } /** * Check syntax error in a given flags. * @param {string|null} flags The RegExp flags to validate. * @returns {string|null} The syntax error. */ function validateRegExpFlags(flags) { if (!flags) { return null; } try { validator.validateFlags(flags); } catch { return `Invalid flags supplied to RegExp constructor '${flags}'`; } /* * `regexpp` checks the combination of `u` and `v` flags when parsing `Pattern` according to `ecma262`, * but this rule may check only the flag when the pattern is unidentifiable, so check it here. * https://tc39.es/ecma262/multipage/text-processing.html#sec-parsepattern */ if (flags.includes("u") && flags.includes("v")) { return "Regex 'u' and 'v' flags cannot be used together"; } return null; } return { "CallExpression, NewExpression"(node) { if (node.callee.type !== "Identifier" || node.callee.name !== "RegExp") { return; } let flags = getFlags(node); if (flags && allowedFlags) { flags = flags.replace(allowedFlags, ""); } let message = validateRegExpFlags(flags); if (message) { report(node, message); return; } if (!isString(node.arguments[0])) { return; } const pattern = node.arguments[0].value; message = ( // If flags are unknown, report the regex only if its pattern is invalid both with and without the "u" flag flags === null ? ( validateRegExpPattern(pattern, { unicode: true, unicodeSets: false }) && validateRegExpPattern(pattern, { unicode: false, unicodeSets: true }) && validateRegExpPattern(pattern, { unicode: false, unicodeSets: false }) ) : validateRegExpPattern(pattern, { unicode: flags.includes("u"), unicodeSets: flags.includes("v") }) ); if (message) { report(node, message); } } }; } };