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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// Requirements
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//------------------------------------------------------------------------------
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const astUtils = require("./utils/ast-utils");
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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const ignore = require("ignore");
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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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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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/** @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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        replacedBy: [],
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        type: "suggestion",
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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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        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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        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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    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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        const restrictedPaths = (isPathAndPatternsObject ? options[0].paths : context.options) || [];
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        const restrictedPatterns = (isPathAndPatternsObject ? options[0].patterns : []) || [];
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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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        // 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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        // 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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         * 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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         * 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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         * 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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            if (astUtils.isStaticTemplateLiteral(node)) {
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                return node.quasis[0].value.cooked.trim();
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            }
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            return null;
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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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            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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         * 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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        return {
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            CallExpression(node) {
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                if (isRequireCall(node)) {
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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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                        // if first argument is a string literal or a static string template literal
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                        if (name) {
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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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                            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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