214 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			214 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /**
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|  * @fileoverview Restrict usage of specified node modules.
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|  * @author Christian Schulz
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|  * @deprecated in ESLint v7.0.0
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|  */
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| "use strict";
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| 
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| //------------------------------------------------------------------------------
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| // Requirements
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| //------------------------------------------------------------------------------
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| 
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| const astUtils = require("./utils/ast-utils");
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| 
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| //------------------------------------------------------------------------------
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| // Rule Definition
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| //------------------------------------------------------------------------------
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| 
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| const ignore = require("ignore");
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| 
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| const arrayOfStrings = {
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|     type: "array",
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|     items: { type: "string" },
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|     uniqueItems: true
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| };
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| 
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| const arrayOfStringsOrObjects = {
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|     type: "array",
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|     items: {
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|         anyOf: [
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|             { type: "string" },
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|             {
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|                 type: "object",
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|                 properties: {
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|                     name: { type: "string" },
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|                     message: {
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|                         type: "string",
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|                         minLength: 1
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|                     }
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|                 },
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|                 additionalProperties: false,
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|                 required: ["name"]
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|             }
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|         ]
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|     },
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|     uniqueItems: true
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| };
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| 
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| /** @type {import('../shared/types').Rule} */
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| module.exports = {
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|     meta: {
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|         deprecated: true,
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| 
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|         replacedBy: [],
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| 
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|         type: "suggestion",
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| 
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|         docs: {
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|             description: "Disallow specified modules when loaded by `require`",
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|             recommended: false,
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|             url: "https://eslint.org/docs/latest/rules/no-restricted-modules"
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|         },
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| 
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|         schema: {
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|             anyOf: [
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|                 arrayOfStringsOrObjects,
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|                 {
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|                     type: "array",
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|                     items: {
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|                         type: "object",
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|                         properties: {
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|                             paths: arrayOfStringsOrObjects,
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|                             patterns: arrayOfStrings
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|                         },
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|                         additionalProperties: false
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|                     },
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|                     additionalItems: false
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|                 }
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|             ]
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|         },
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| 
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|         messages: {
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|             defaultMessage: "'{{name}}' module is restricted from being used.",
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|             // eslint-disable-next-line eslint-plugin/report-message-format -- Custom message might not end in a period
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|             customMessage: "'{{name}}' module is restricted from being used. {{customMessage}}",
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|             patternMessage: "'{{name}}' module is restricted from being used by a pattern."
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|         }
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|     },
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| 
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|     create(context) {
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|         const options = Array.isArray(context.options) ? context.options : [];
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|         const isPathAndPatternsObject =
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|             typeof options[0] === "object" &&
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|             (Object.prototype.hasOwnProperty.call(options[0], "paths") || Object.prototype.hasOwnProperty.call(options[0], "patterns"));
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| 
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|         const restrictedPaths = (isPathAndPatternsObject ? options[0].paths : context.options) || [];
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|         const restrictedPatterns = (isPathAndPatternsObject ? options[0].patterns : []) || [];
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| 
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|         const restrictedPathMessages = restrictedPaths.reduce((memo, importName) => {
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|             if (typeof importName === "string") {
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|                 memo[importName] = null;
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|             } else {
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|                 memo[importName.name] = importName.message;
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|             }
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|             return memo;
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|         }, {});
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| 
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|         // if no imports are restricted we don't need to check
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|         if (Object.keys(restrictedPaths).length === 0 && restrictedPatterns.length === 0) {
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|             return {};
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|         }
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| 
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|         // relative paths are supported for this rule
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|         const ig = ignore({ allowRelativePaths: true }).add(restrictedPatterns);
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| 
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| 
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|         /**
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|          * Function to check if a node is a string literal.
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|          * @param {ASTNode} node The node to check.
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|          * @returns {boolean} If the node is a string literal.
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|          */
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|         function isStringLiteral(node) {
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|             return node && node.type === "Literal" && typeof node.value === "string";
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|         }
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| 
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|         /**
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|          * Function to check if a node is a require call.
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|          * @param {ASTNode} node The node to check.
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|          * @returns {boolean} If the node is a require call.
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|          */
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|         function isRequireCall(node) {
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|             return node.callee.type === "Identifier" && node.callee.name === "require";
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|         }
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| 
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|         /**
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|          * Extract string from Literal or TemplateLiteral node
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|          * @param {ASTNode} node The node to extract from
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|          * @returns {string|null} Extracted string or null if node doesn't represent a string
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|          */
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|         function getFirstArgumentString(node) {
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|             if (isStringLiteral(node)) {
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|                 return node.value.trim();
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|             }
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| 
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|             if (astUtils.isStaticTemplateLiteral(node)) {
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|                 return node.quasis[0].value.cooked.trim();
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|             }
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| 
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|             return null;
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|         }
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| 
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|         /**
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|          * Report a restricted path.
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|          * @param {node} node representing the restricted path reference
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|          * @param {string} name restricted path
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|          * @returns {void}
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|          * @private
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|          */
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|         function reportPath(node, name) {
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|             const customMessage = restrictedPathMessages[name];
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|             const messageId = customMessage
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|                 ? "customMessage"
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|                 : "defaultMessage";
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| 
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|             context.report({
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|                 node,
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|                 messageId,
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|                 data: {
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|                     name,
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|                     customMessage
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|                 }
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|             });
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|         }
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| 
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|         /**
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|          * Check if the given name is a restricted path name
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|          * @param {string} name name of a variable
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|          * @returns {boolean} whether the variable is a restricted path or not
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|          * @private
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|          */
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|         function isRestrictedPath(name) {
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|             return Object.prototype.hasOwnProperty.call(restrictedPathMessages, name);
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|         }
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| 
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|         return {
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|             CallExpression(node) {
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|                 if (isRequireCall(node)) {
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| 
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|                     // node has arguments
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|                     if (node.arguments.length) {
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|                         const name = getFirstArgumentString(node.arguments[0]);
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| 
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|                         // if first argument is a string literal or a static string template literal
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|                         if (name) {
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| 
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|                             // check if argument value is in restricted modules array
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|                             if (isRestrictedPath(name)) {
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|                                 reportPath(node, name);
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|                             }
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| 
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|                             if (restrictedPatterns.length > 0 && ig.ignores(name)) {
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|                                 context.report({
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|                                     node,
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|                                     messageId: "patternMessage",
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|                                     data: { name }
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|                                 });
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|                             }
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|                         }
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|                     }
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|                 }
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|             }
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|         };
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|     }
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| };
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