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/usr/local/lib/node_modules/wonlog/node_modules/lusca/   drwxr-xr-x
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Viewing file:     index.js (3.26 KB)      -rw-r--r--

/*───────────────────────────────────────────────────────────────────────────*\
│  Copyright (C) 2016 PayPal                                                  │
│                                                                             │
│hh ,'""`.                                                                    │
│  / _  _ \  Licensed under the Apache License, Version 2.0 (the "License");  │
│  |(@)(@)|  you may not use this file except in compliance with the License. │
│  )  __  (  You may obtain a copy of the License at                          │
│ /,'))((`.\                                                                  │
│(( ((  )) ))    http://www.apache.org/licenses/LICENSE-2.0                   │
│ `\ `)(' /'                                                                  │
│                                                                             │
│   Unless required by applicable law or agreed to in writing, software       │
│   distributed under the License is distributed on an "AS IS" BASIS,         │
│   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  │
│   See the License for the specific language governing permissions and       │
│   limitations under the License.                                            │
\*───────────────────────────────────────────────────────────────────────────*/
'use strict';
var crypto  = require('crypto');


/**
 * Outputs all security headers based on configuration
 * @param {Object} options The configuration object.
 */
var lusca = module.exports = function (options) {
    var headers = [];
    var nonce;

    if (options) {
        Object.keys(lusca).forEach(function (key) {
            var config = options[key];
            if (key === "csp" && options[key] && (options[key]['styleNonce'] || options[key]['scriptNonce'])) {
                nonce = true;
            }

            if (config) {
                headers.push(lusca[key](config));
            }
        });
    }

    return function lusca(req, res, next) {
        var chain = next;

        if (nonce) {
            Object.defineProperty(res.locals, 'nonce', {
                value: crypto.pseudoRandomBytes(36).toString('base64'),
                enumerable: true
            });
        }
        headers.forEach(function (header) {
            chain = (function (next) {
                return function (err) {
                    if (err) {
                        next(err);
                        return;
                    }
                    return header(req, res, next);
                };
            }(chain));
        });

        chain();
    };
};


lusca.csrf = require('./lib/csrf');
lusca.csp = require('./lib/csp');
lusca.hsts = require('./lib/hsts');
lusca.p3p = require('./lib/p3p');
lusca.xframe = require('./lib/xframes');
lusca.xssProtection = require('./lib/xssprotection');
lusca.nosniff = require('./lib/nosniff');
lusca.referrerPolicy = require('./lib/referrerpolicy');