411 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			411 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/**
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 * @fileoverview Restrict usage of specified node imports.
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 * @author Guy Ellis
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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 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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                    importNames: {
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                        type: "array",
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                        items: {
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                            type: "string"
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                        }
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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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const arrayOfStringsOrObjectPatterns = {
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    anyOf: [
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        {
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            type: "array",
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            items: {
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                type: "string"
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            },
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            uniqueItems: true
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        },
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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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                    importNames: {
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                        type: "array",
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                        items: {
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                            type: "string"
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                        },
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                        minItems: 1,
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                        uniqueItems: true
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                    },
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                    group: {
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                        type: "array",
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                        items: {
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                            type: "string"
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                        },
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                        minItems: 1,
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                        uniqueItems: true
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                    },
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                    importNamePattern: {
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                        type: "string"
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                    },
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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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                    caseSensitive: {
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                        type: "boolean"
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                    }
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                },
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                additionalProperties: false,
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                required: ["group"]
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            },
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            uniqueItems: true
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        }
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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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        type: "suggestion",
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        docs: {
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            description: "Disallow specified modules when loaded by `import`",
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            recommended: false,
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            url: "https://eslint.org/docs/latest/rules/no-restricted-imports"
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        },
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        messages: {
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            path: "'{{importSource}}' import 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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            pathWithCustomMessage: "'{{importSource}}' import is restricted from being used. {{customMessage}}",
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            patterns: "'{{importSource}}' import is restricted from being used by a pattern.",
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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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            patternWithCustomMessage: "'{{importSource}}' import is restricted from being used by a pattern. {{customMessage}}",
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            patternAndImportName: "'{{importName}}' import from '{{importSource}}' is restricted from being used by a pattern.",
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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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            patternAndImportNameWithCustomMessage: "'{{importName}}' import from '{{importSource}}' is restricted from being used by a pattern. {{customMessage}}",
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            patternAndEverything: "* import is invalid because '{{importNames}}' from '{{importSource}}' is restricted from being used by a pattern.",
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            patternAndEverythingWithRegexImportName: "* import is invalid because import name matching '{{importNames}}' pattern from '{{importSource}}' 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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            patternAndEverythingWithCustomMessage: "* import is invalid because '{{importNames}}' from '{{importSource}}' is restricted from being used by a pattern. {{customMessage}}",
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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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            patternAndEverythingWithRegexImportNameAndCustomMessage: "* import is invalid because import name matching '{{importNames}}' pattern from '{{importSource}}' is restricted from being used. {{customMessage}}",
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            everything: "* import is invalid because '{{importNames}}' from '{{importSource}}' is restricted.",
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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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            everythingWithCustomMessage: "* import is invalid because '{{importNames}}' from '{{importSource}}' is restricted. {{customMessage}}",
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            importName: "'{{importName}}' import from '{{importSource}}' is restricted.",
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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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            importNameWithCustomMessage: "'{{importName}}' import from '{{importSource}}' is restricted. {{customMessage}}"
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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: arrayOfStringsOrObjectPatterns
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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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    create(context) {
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        const sourceCode = context.sourceCode;
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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 restrictedPathMessages = restrictedPaths.reduce((memo, importSource) => {
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            if (typeof importSource === "string") {
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                memo[importSource] = { message: null };
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            } else {
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                memo[importSource.name] = {
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                    message: importSource.message,
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                    importNames: importSource.importNames
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                };
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            }
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            return memo;
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        }, {});
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        // Handle patterns too, either as strings or groups
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        let restrictedPatterns = (isPathAndPatternsObject ? options[0].patterns : []) || [];
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        // standardize to array of objects if we have an array of strings
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        if (restrictedPatterns.length > 0 && typeof restrictedPatterns[0] === "string") {
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            restrictedPatterns = [{ group: restrictedPatterns }];
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        }
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        // relative paths are supported for this rule
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        const restrictedPatternGroups = restrictedPatterns.map(({ group, message, caseSensitive, importNames, importNamePattern }) => ({
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            matcher: ignore({ allowRelativePaths: true, ignorecase: !caseSensitive }).add(group),
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            customMessage: message,
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            importNames,
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            importNamePattern
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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 && restrictedPatternGroups.length === 0) {
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            return {};
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        }
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        /**
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         * Report a restricted path.
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         * @param {string} importSource path of the import
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         * @param {Map<string,Object[]>} importNames Map of import names that are being imported
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         * @param {node} node representing the restricted path reference
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         * @returns {void}
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         * @private
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         */
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        function checkRestrictedPathAndReport(importSource, importNames, node) {
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            if (!Object.prototype.hasOwnProperty.call(restrictedPathMessages, importSource)) {
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                return;
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            }
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            const customMessage = restrictedPathMessages[importSource].message;
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            const restrictedImportNames = restrictedPathMessages[importSource].importNames;
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            if (restrictedImportNames) {
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                if (importNames.has("*")) {
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                    const specifierData = importNames.get("*")[0];
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                    context.report({
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                        node,
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                        messageId: customMessage ? "everythingWithCustomMessage" : "everything",
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                        loc: specifierData.loc,
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                        data: {
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                            importSource,
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                            importNames: restrictedImportNames,
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                            customMessage
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                        }
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                    });
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                }
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                restrictedImportNames.forEach(importName => {
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                    if (importNames.has(importName)) {
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                        const specifiers = importNames.get(importName);
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                        specifiers.forEach(specifier => {
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                            context.report({
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                                node,
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                                messageId: customMessage ? "importNameWithCustomMessage" : "importName",
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                                loc: specifier.loc,
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                                data: {
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                                    importSource,
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                                    customMessage,
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                                    importName
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                                }
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                            });
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                        });
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                    }
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                });
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            } else {
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                context.report({
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                    node,
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                    messageId: customMessage ? "pathWithCustomMessage" : "path",
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                    data: {
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                        importSource,
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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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         * Report a restricted path specifically for patterns.
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         * @param {node} node representing the restricted path reference
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         * @param {Object} group contains an Ignore instance for paths, the customMessage to show on failure,
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         * and any restricted import names that have been specified in the config
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         * @param {Map<string,Object[]>} importNames Map of import names that are being imported
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         * @returns {void}
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         * @private
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         */
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        function reportPathForPatterns(node, group, importNames) {
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            const importSource = node.source.value.trim();
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            const customMessage = group.customMessage;
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            const restrictedImportNames = group.importNames;
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            const restrictedImportNamePattern = group.importNamePattern ? new RegExp(group.importNamePattern, "u") : null;
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            /*
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             * If we are not restricting to any specific import names and just the pattern itself,
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             * report the error and move on
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             */
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            if (!restrictedImportNames && !restrictedImportNamePattern) {
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                context.report({
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                    node,
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                    messageId: customMessage ? "patternWithCustomMessage" : "patterns",
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                    data: {
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                        importSource,
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                        customMessage
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                    }
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                });
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                return;
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            }
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            importNames.forEach((specifiers, importName) => {
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                if (importName === "*") {
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                    const [specifier] = specifiers;
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                    if (restrictedImportNames) {
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                        context.report({
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                            node,
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                            messageId: customMessage ? "patternAndEverythingWithCustomMessage" : "patternAndEverything",
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                            loc: specifier.loc,
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                            data: {
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                                importSource,
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                                importNames: restrictedImportNames,
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                                customMessage
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                            }
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                        });
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                    } else {
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                        context.report({
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                            node,
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                            messageId: customMessage ? "patternAndEverythingWithRegexImportNameAndCustomMessage" : "patternAndEverythingWithRegexImportName",
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                            loc: specifier.loc,
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                            data: {
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                                importSource,
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                                importNames: restrictedImportNamePattern,
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                                customMessage
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                            }
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                        });
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                    }
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                    return;
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                }
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                if (
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                    (restrictedImportNames && restrictedImportNames.includes(importName)) ||
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                    (restrictedImportNamePattern && restrictedImportNamePattern.test(importName))
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                ) {
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                    specifiers.forEach(specifier => {
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                        context.report({
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                            node,
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                            messageId: customMessage ? "patternAndImportNameWithCustomMessage" : "patternAndImportName",
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                            loc: specifier.loc,
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                            data: {
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                                importSource,
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                                customMessage,
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                                importName
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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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         * Check if the given importSource is restricted by a pattern.
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         * @param {string} importSource path of the import
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         * @param {Object} group contains a Ignore instance for paths, and the customMessage to show if it fails
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         * @returns {boolean} whether the variable is a restricted pattern or not
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         * @private
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         */
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        function isRestrictedPattern(importSource, group) {
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            return group.matcher.ignores(importSource);
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        }
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        /**
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         * Checks a node to see if any problems should be reported.
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         * @param {ASTNode} node The node to check.
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         * @returns {void}
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         * @private
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         */
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        function checkNode(node) {
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            const importSource = node.source.value.trim();
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            const importNames = new Map();
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            if (node.type === "ExportAllDeclaration") {
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                const starToken = sourceCode.getFirstToken(node, 1);
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                importNames.set("*", [{ loc: starToken.loc }]);
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            } else if (node.specifiers) {
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                for (const specifier of node.specifiers) {
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                    let name;
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                    const specifierData = { loc: specifier.loc };
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                    if (specifier.type === "ImportDefaultSpecifier") {
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                        name = "default";
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                    } else if (specifier.type === "ImportNamespaceSpecifier") {
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                        name = "*";
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                    } else if (specifier.imported) {
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                        name = astUtils.getModuleExportName(specifier.imported);
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                    } else if (specifier.local) {
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                        name = astUtils.getModuleExportName(specifier.local);
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                    }
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                    if (typeof name === "string") {
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                        if (importNames.has(name)) {
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                            importNames.get(name).push(specifierData);
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                        } else {
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                            importNames.set(name, [specifierData]);
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                        }
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                    }
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                }
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            }
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            checkRestrictedPathAndReport(importSource, importNames, node);
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            restrictedPatternGroups.forEach(group => {
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                if (isRestrictedPattern(importSource, group)) {
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                    reportPathForPatterns(node, group, importNames);
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                }
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            });
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        }
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        return {
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            ImportDeclaration: checkNode,
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            ExportNamedDeclaration(node) {
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                if (node.source) {
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                    checkNode(node);
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                }
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            },
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            ExportAllDeclaration: checkNode
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        };
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    }
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};
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