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index.js
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index.js
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const _ = require('lodash');
const { flagErrors } = require('./validateImports.js');
module.exports = {
rules: {
'no-outerText': {
meta: {
docs: {
description: '.outerText property on DOM elements should not be used due to performance issues'
},
messages: {
noInnerText: 'Use of `.outerText` is not allowed. Use `.textContent` instead.',
}
},
create: function(context) {
return {
MemberExpression(node) {
if (node.property && node.property.name === 'outerText') {
context.report({
node: node.property,
messageId: 'noOuterText',
});
}
}
}
}
},
'no-innerText': {
meta: {
docs: {
description: '.innerText property on DOM elements should not be used due to performance issues'
},
messages: {
noInnerText: 'Use of `.innerText` is not allowed. Use `.textContent` instead.',
}
},
create: function(context) {
return {
MemberExpression(node) {
if (node.property && node.property.name === 'innerText') {
context.report({
node: node.property,
messageId: 'noInnerText',
});
}
}
}
}
},
'validate-imports': {
meta: {
docs: {
description: 'validates module imports can be found without custom webpack resolvers, are in module whitelist, and not module entry points'
}
},
create: function(context) {
return {
"CallExpression[callee.name='require']"(node) {
let importPath = _.get(node, ['arguments', 0, 'value']);
if (importPath) {
flagErrors(context, node, importPath);
}
},
ImportDeclaration(node) {
let importPath = node.source.value.trim();
flagErrors(context, node, importPath);
},
'ExportNamedDeclaration[source]'(node) {
let importPath = node.source.value.trim();
flagErrors(context, node, importPath);
}
}
}
},
'no-cookie-or-localstorage': {
meta: {
docs: {
description: 'Disallow use of document.cookie or localStorage in files matching *BidAdapter.js'
},
messages: {
noCookie: 'Usage of document.cookie is not allowed in *BidAdapter.js files. Use storageManager instead.',
noLocalStorage: 'Usage of localStorage is not allowed in *BidAdapter.js files. Use storageManager instead.',
}
},
create: function(context) {
const filename = context.getFilename();
const isBidAdapterFile = /.*BidAdapter\.js$/.test(filename);
if (!isBidAdapterFile) {
return {};
}
return {
MemberExpression(node) {
if (
(node.object.name === 'document' && node.property.name === 'cookie') ||
(node.object.name === 'localStorage' &&
(node.property.name === 'getItem' ||
node.property.name === 'setItem' ||
node.property.name === 'removeItem' ||
node.property.name === 'clear'))
) {
context.report({
node,
messageId: node.object.name === 'document' ? 'noCookie' : 'noLocalStorage',
});
}
}
}
}
},
'no-dom-manipulation': {
meta: {
docs: {
description: 'Disallow use of methods to insert elements into the document in files matching *BidAdapter.js'
},
messages: {
noInsertElement: 'Usage of insertElement is not allowed in *BidAdapter.js files. Import our methods instead.',
noAppendChild: 'Usage of appendChild is not allowed in *BidAdapter.js files. Import our methods instead.',
noDomManipulation: 'Direct DOM manipulation is not allowed in *BidAdapter.js files. Import our methods instead.'
}
},
create: function(context) {
const filename = context.getFilename();
const isBidAdapterFile = /.*BidAdapter\.js$/.test(filename);
if (!isBidAdapterFile) {
return {};
}
return {
CallExpression(node) {
const calleeName = node.callee.name;
if (calleeName === 'insertElement' || calleeName === 'appendChild' ||
calleeName === 'insertBefore' || calleeName === 'replaceChild' ||
calleeName === 'createElement' || calleeName === 'createElementNS' ||
calleeName === 'createDocumentFragment' ||
calleeName === 'innerHTML') {
context.report({
node,
messageId:
calleeName === 'insertElement'
? 'noInsertElement'
: calleeName === 'appendChild'
? 'noAppendChild'
: 'noDomManipulation'
});
}
},
MemberExpression(node) {
if (node.property && node.property.name === 'innerHTML') {
context.report({
node: node.property,
messageId: 'noDomManipulation',
});
}
}
}
}
},
'no-direct-network-requests': {
meta: {
docs: {
description: 'Disallow direct use of network requests methods (navigator.sendBeacon, XMLHttpRequest, fetch) in files matching *BidAdapter.js'
},
messages: {
noSendBeacon: 'Usage of navigator.sendBeacon is not allowed in *BidAdapter.js files.',
noXMLHttpRequest: 'Usage of XMLHttpRequest is not allowed in *BidAdapter.js files.',
noFetch: 'Usage of fetch is not allowed in *BidAdapter.js files.',
}
},
create: function(context) {
const filename = context.getFilename();
const isBidAdapterFile = /.*BidAdapter\.js$/.test(filename);
if (!isBidAdapterFile) {
return {};
}
return {
MemberExpression(node) {
if (node.object.name === 'navigator' && node.property.name === 'sendBeacon') {
context.report({
node,
messageId: 'noSendBeacon',
});
}
},
NewExpression(node) {
if (node.callee.name === 'XMLHttpRequest') {
context.report({
node,
messageId: 'noXMLHttpRequest',
});
}
},
CallExpression(node) {
const calleeName = node.callee.name;
if (calleeName === 'fetch') {
context.report({
node,
messageId: 'noFetch',
});
}
}
}
}
}
}
};