tslint-config-security/dist/rules/tsrDetectNoCsrfBeforeMethodOverrideRule.js

TSLint security rules

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var Lint = require("tslint");
var ts = require("typescript");
var Rule = (function (_super) {
    tslib_1.__extends(Rule, _super);
    function Rule() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    Rule.prototype.apply = function (sourceFile) {
        return this.applyWithFunction(sourceFile, walk);
    };
    Rule.metadata = {
        ruleName: 'tsr-detect-no-csrf-before-method-override',
        description: 'Warns when csrf middleware for Express.js is setup before method-override middleware',
        descriptionDetails: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["Any usage of express.csrf() middleware before\n            express.methodOverride() will trigger a warning.\n            See https://github.com/webschik/tslint-config-security#tsr-detect-no-csrf-before-method-override"], ["Any usage of express.csrf() middleware before\n            express.methodOverride() will trigger a warning.\n            See https://github.com/webschik/tslint-config-security#tsr-detect-no-csrf-before-method-override"]))),
        optionsDescription: '',
        options: null,
        type: 'functionality',
        requiresTypeInfo: false,
        typescriptOnly: false
    };
    return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
function walk(ctx) {
    var isCsrfFound;
    function visitNode(node) {
        if (node.kind === ts.SyntaxKind.PropertyAccessExpression) {
            var _a = node, name = _a.name, expression = _a.expression;
            var nameText = name && name.text;
            if (expression && expression.text === 'express') {
                if (isCsrfFound && nameText === 'methodOverride') {
                    ctx.addFailureAtNode(node, 'express.csrf() middleware found before express.methodOverride()');
                }
                else if (nameText === 'csrf') {
                    isCsrfFound = true;
                }
            }
        }
        return ts.forEachChild(node, visitNode);
    }
    return ts.forEachChild(ctx.sourceFile, visitNode);
}
var templateObject_1;