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168 lines
6.2 KiB
168 lines
6.2 KiB
/**
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* @fileoverview Rule to disallow certain object properties
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* @author Will Klein & Eli White
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*/
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"use strict";
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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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/** @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 certain properties on certain objects",
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recommended: false,
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url: "https://eslint.org/docs/latest/rules/no-restricted-properties"
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},
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schema: {
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type: "array",
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items: {
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anyOf: [ // `object` and `property` are both optional, but at least one of them must be provided.
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{
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type: "object",
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properties: {
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object: {
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type: "string"
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},
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property: {
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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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}
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},
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additionalProperties: false,
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required: ["object"]
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},
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{
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type: "object",
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properties: {
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object: {
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type: "string"
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},
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property: {
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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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}
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},
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additionalProperties: false,
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required: ["property"]
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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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messages: {
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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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restrictedObjectProperty: "'{{objectName}}.{{propertyName}}' is restricted from being used.{{message}}",
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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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restrictedProperty: "'{{propertyName}}' is restricted from being used.{{message}}"
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}
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},
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create(context) {
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const restrictedCalls = context.options;
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if (restrictedCalls.length === 0) {
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return {};
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}
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const restrictedProperties = new Map();
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const globallyRestrictedObjects = new Map();
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const globallyRestrictedProperties = new Map();
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restrictedCalls.forEach(option => {
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const objectName = option.object;
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const propertyName = option.property;
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if (typeof objectName === "undefined") {
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globallyRestrictedProperties.set(propertyName, { message: option.message });
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} else if (typeof propertyName === "undefined") {
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globallyRestrictedObjects.set(objectName, { message: option.message });
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} else {
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if (!restrictedProperties.has(objectName)) {
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restrictedProperties.set(objectName, new Map());
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}
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restrictedProperties.get(objectName).set(propertyName, {
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message: option.message
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});
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}
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});
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/**
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* Checks to see whether a property access is restricted, and reports it if so.
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* @param {ASTNode} node The node to report
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* @param {string} objectName The name of the object
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* @param {string} propertyName The name of the property
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* @returns {undefined}
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*/
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function checkPropertyAccess(node, objectName, propertyName) {
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if (propertyName === null) {
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return;
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}
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const matchedObject = restrictedProperties.get(objectName);
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const matchedObjectProperty = matchedObject ? matchedObject.get(propertyName) : globallyRestrictedObjects.get(objectName);
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const globalMatchedProperty = globallyRestrictedProperties.get(propertyName);
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if (matchedObjectProperty) {
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const message = matchedObjectProperty.message ? ` ${matchedObjectProperty.message}` : "";
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context.report({
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node,
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messageId: "restrictedObjectProperty",
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data: {
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objectName,
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propertyName,
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message
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}
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});
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} else if (globalMatchedProperty) {
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const message = globalMatchedProperty.message ? ` ${globalMatchedProperty.message}` : "";
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context.report({
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node,
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messageId: "restrictedProperty",
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data: {
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propertyName,
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message
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}
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});
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}
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}
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return {
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MemberExpression(node) {
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checkPropertyAccess(node, node.object && node.object.name, astUtils.getStaticPropertyName(node));
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},
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ObjectPattern(node) {
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let objectName = null;
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if (node.parent.type === "VariableDeclarator") {
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if (node.parent.init && node.parent.init.type === "Identifier") {
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objectName = node.parent.init.name;
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}
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} else if (node.parent.type === "AssignmentExpression" || node.parent.type === "AssignmentPattern") {
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if (node.parent.right.type === "Identifier") {
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objectName = node.parent.right.name;
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}
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}
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node.properties.forEach(property => {
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checkPropertyAccess(node, objectName, astUtils.getStaticPropertyName(property));
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});
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}
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};
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}
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};
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