ad-promise/lib/services/service.getGroupMembershipForUser.js

This is a fork of the gheeres node-activedirectory. It fixes some issues with timeouts with very large AD-Groups as well as returning also promises so you won't have to use callbacks

const _                     = require('underscore');
const defaultAttributes     = require('../configs/config.defaultAttributes');

const Group                             = require('../models/group');
const pickAttributes                    = require('./internal/service.pickAttributes');
const getGroupMembershipForDN           = require('./service.getGroupMembershipForDn');
const getUserDistinguishedName          = require('./internal/service.getUserDistinguishedName');
const log                               = require('./internal/service.log');

const updateBaseDn                      = require('./internal/service.updateBaseDn');

/**
 * For the specified username, get all of the groups that the user is a member of.
 *
 * @public
 * @param {Object} [opts] Optional LDAP query string parameters to execute. { scope: '', filter: '', attributes: [ '', '', ... ], sizeLimit: 0, timelimit: 0 }
 * @param {String} username The username to retrieve membership information about.
 * @param {Function} [callback] The callback to execute when completed. callback(err: {Object}, groups: {Array[Group]})
 */
function getGroupMembershipForUser(opts, username, callback) {
    var self = this;
    return new Promise((resolve, reject) => {
        if (typeof (username) === 'function' || !username) {
            callback = username;
            username = opts;
            opts = undefined;
        }
        log.trace('getGroupMembershipForUser(%j,%s)', opts, username);
        updateBaseDn(self, "user");
        getUserDistinguishedName.call(self, opts, username, function (err, dn) {
            if (err) {
                if (callback){
                    callback(err);
                }
                return reject(err);                
            }
    
            if (!dn) {
                log.warn('Could not find a distinguishedName for the specified username: "%s"', username);
                if (callback){
                    callback();
                } 
                return resolve([]);
            }
            getGroupMembershipForDN.call(self, opts, dn, function (err, groups) {
                if (err) {
                    if (callback){
                        callback(err);
                    } 
                    return reject(err);
                }
    
                var results = [];
                _.each(groups, function (group) {
                    var result = new Group(pickAttributes(group, (opts || {}).attributes || defaultAttributes.group));
                    self.emit(result);
                    results.push(result);
                });
                if (callback){
                    callback(err, results);
                }
                return resolve(results);
            });
        });
    });    
};

module.exports = getGroupMembershipForUser;