noOctalLiteralRule.js

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var ts = require("typescript");
var Lint = require("tslint");
var ErrorTolerantWalker_1 = require("./utils/ErrorTolerantWalker");
var Rule = (function (_super) {
    __extends(Rule, _super);
    function Rule() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    Rule.prototype.apply = function (sourceFile) {
        var noOctalLiteral = new NoOctalLiteral(sourceFile, this.getOptions());
        return this.applyWithWalker(noOctalLiteral);
    };
    Rule.metadata = {
        ruleName: 'no-octal-literal',
        type: 'maintainability',
        description: 'Do not use octal literals or escaped octal sequences',
        options: null,
        optionsDescription: '',
        typescriptOnly: true,
        issueClass: 'SDL',
        issueType: 'Error',
        severity: 'Critical',
        level: 'Mandatory',
        group: 'Security'
    };
    Rule.FAILURE_STRING = 'Octal literals should not be used: ';
    return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
var NoOctalLiteral = (function (_super) {
    __extends(NoOctalLiteral, _super);
    function NoOctalLiteral() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    NoOctalLiteral.prototype.visitNode = function (node) {
        if (node.kind === ts.SyntaxKind.StringLiteral || node.kind === ts.SyntaxKind.FirstTemplateToken) {
            this.failOnOctalString(node);
        }
        _super.prototype.visitNode.call(this, node);
    };
    NoOctalLiteral.prototype.failOnOctalString = function (node) {
        var match = /("|'|`)[^\\]*(\\+-?[0-7]{1,3}(?![0-9]))(?:.|\n|\t|\u2028|\u2029)*(?:\1)/g.exec(node.getText());
        if (match) {
            var octalValue = match[2];
            var backslashCount = octalValue.lastIndexOf('\\') + 1;
            if (backslashCount % 2 === 1) {
                octalValue = octalValue.substr(backslashCount - 1);
                var startOfMatch = node.getStart() + node.getText().indexOf(octalValue);
                var width = octalValue.length;
                this.addFailureAt(startOfMatch, width, Rule.FAILURE_STRING + octalValue);
            }
        }
    };
    return NoOctalLiteral;
}(ErrorTolerantWalker_1.ErrorTolerantWalker));
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