323 lines
12 KiB
JavaScript
323 lines
12 KiB
JavaScript
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/**
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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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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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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/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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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.getSourceCode();
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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 }) => ({
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matcher: ignore({ allowRelativePaths: true, ignorecase: !caseSensitive }).add(group),
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customMessage: message
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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 a Ignore instance for paths, and the customMessage to show if it fails
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* @returns {void}
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* @private
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*/
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function reportPathForPatterns(node, group) {
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const importSource = node.source.value.trim();
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context.report({
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node,
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messageId: group.customMessage ? "patternWithCustomMessage" : "patterns",
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data: {
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importSource,
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customMessage: group.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 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);
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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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