# all files / red/api/auth/ users.js

91.23% Statements 52/57
80% Branches 24/30
100% Functions 10/10
91.07% Lines 51/56

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     /**
    * Copyright JS Foundation and other contributors, http://js.foundation
    *
    * 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.
    **/

    var when = require("when");
    var util = require("util");
    var bcrypt;
    try { bcrypt = require('bcrypt'); }
    catch(e) { bcrypt = require('bcryptjs'); }
    var users = {};
    var passwords = {};
    var defaultUser = null;

    function authenticate() {
        var username = arguments[0];
        Iif (typeof username !== 'string') {
            username = username.username;
        }
        var user = users[username];
        if (user) {
            Eif (arguments.length === 2) {
                // Username/password authentication
                var password = arguments[1];
                return when.promise(function(resolve,reject) {
                    bcrypt.compare(password, passwords[username], function(err, res) {
                        resolve(res?user:null);
                    });
                });
            } else {
                // Try to extract common profile information
                if (arguments[0].hasOwnProperty('photos') && arguments[0].photos.length > 0) {
                    user.image = arguments[0].photos[0].value;
                }
                return when.resolve(user);
            }
        }
        return when.resolve(null);
    }
    function get(username) {
        return when.resolve(users[username]);
    }
    function getDefaultUser() {
        return when.resolve(null);
    }

    var api = {
        get: get,
        authenticate: authenticate,
        default: getDefaultUser
    }

    function init(config) {
        users = {};
        passwords = {};
        defaultUser = null;
        if (config.type == "credentials" || config.type == "strategy") {
            if (config.users) {
                if (typeof config.users === "function") {
                    api.get = config.users;
                } else {
                    var us = config.users;
                    /* istanbul ignore else */
                    if (!util.isArray(us)) {
                        us = [us];
                    }
                    for (var i=0;i<us.length;i++) {
                        var u = us[i];
                        users[u.username] = {
                            "username":u.username,
                            "permissions":u.permissions
                        };
                        passwords[u.username] = u.password;
                    }
                }
            }
            if (config.authenticate && typeof config.authenticate === "function") {
                api.authenticate = config.authenticate;
            } else {
                api.authenticate = authenticate;
            }
        }
        if (config.default) {
            if (typeof config.default === "function") {
                api.default = config.default;
            } else {
                api.default = function() {
                    return when.resolve({
                        "anonymous": true,
                        "permissions":config.default.permissions
                    });
                }
            }
        } else {
            api.default = getDefaultUser;
        }
    }

    module.exports = {
        init: init,
        get: function(username) { return api.get(username) },
        authenticate: function() { return api.authenticate.apply(null, arguments) },
        default: function() { return api.default(); }
    };