589 lines
25 KiB
JavaScript
589 lines
25 KiB
JavaScript
'use strict';
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exports = module.exports = {
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search: search,
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verifyPassword: verifyPassword,
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createAndVerifyUserIfNotExist: createAndVerifyUserIfNotExist,
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testConfig: testConfig,
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startSyncer: startSyncer,
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injectPrivateFields: injectPrivateFields,
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removePrivateFields: removePrivateFields,
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sync: sync
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};
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var assert = require('assert'),
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async = require('async'),
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auditSource = require('./auditsource.js'),
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BoxError = require('./boxerror.js'),
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constants = require('./constants.js'),
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debug = require('debug')('box:externalldap'),
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groups = require('./groups.js'),
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ldap = require('ldapjs'),
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once = require('once'),
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settings = require('./settings.js'),
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tasks = require('./tasks.js'),
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users = require('./users.js');
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function injectPrivateFields(newConfig, currentConfig) {
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if (newConfig.bindPassword === constants.SECRET_PLACEHOLDER) newConfig.bindPassword = currentConfig.bindPassword;
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}
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function removePrivateFields(ldapConfig) {
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assert.strictEqual(typeof ldapConfig, 'object');
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if (ldapConfig.bindPassword) ldapConfig.bindPassword = constants.SECRET_PLACEHOLDER;
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return ldapConfig;
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}
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function translateUser(ldapConfig, ldapUser) {
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assert.strictEqual(typeof ldapConfig, 'object');
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return {
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username: ldapUser[ldapConfig.usernameField],
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email: ldapUser.mail || ldapUser.mailPrimaryAddress,
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displayName: ldapUser.cn // user.giveName + ' ' + user.sn
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};
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}
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function validUserRequirements(user) {
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if (!user.username || !user.email || !user.displayName) {
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debug(`[Invalid LDAP user] username=${user.username} email=${user.email} displayName=${user.displayName}`);
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return false;
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} else {
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return true;
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}
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}
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// performs service bind if required
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function getClient(externalLdapConfig, doBindAuth, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof doBindAuth, 'boolean');
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assert.strictEqual(typeof callback, 'function');
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// ensure we only callback once since we also have to listen to client.error events
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callback = once(callback);
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// basic validation to not crash
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try { ldap.parseDN(externalLdapConfig.baseDn); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid baseDn')); }
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try { ldap.parseFilter(externalLdapConfig.filter); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid filter')); }
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var config = {
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url: externalLdapConfig.url,
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tlsOptions: {
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rejectUnauthorized: externalLdapConfig.acceptSelfSignedCerts ? false : true
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}
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};
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var client;
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try {
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client = ldap.createClient(config);
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} catch (e) {
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if (e instanceof ldap.ProtocolError) return callback(new BoxError(BoxError.BAD_FIELD, 'url protocol is invalid'));
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return callback(new BoxError(BoxError.INTERNAL_ERROR, e));
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}
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// ensure we don't just crash
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client.on('error', function (error) {
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callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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});
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// skip bind auth if none exist or if not wanted
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if (!externalLdapConfig.bindDn || !doBindAuth) return callback(null, client);
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client.bind(externalLdapConfig.bindDn, externalLdapConfig.bindPassword, function (error) {
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if (error instanceof ldap.InvalidCredentialsError) return callback(new BoxError(BoxError.INVALID_CREDENTIALS));
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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callback(null, client);
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});
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}
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function ldapGetByDN(externalLdapConfig, dn, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof dn, 'string');
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assert.strictEqual(typeof callback, 'function');
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getClient(externalLdapConfig, true, function (error, client) {
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if (error) return callback(error);
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let searchOptions = {
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paged: true,
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scope: 'sub' // We may have to make this configurable
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};
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debug(`Get object at ${dn}`);
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// basic validation to not crash
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try { ldap.parseDN(dn); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid DN')); }
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client.search(dn, searchOptions, function (error, result) {
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if (error instanceof ldap.NoSuchObjectError) return callback(new BoxError(BoxError.NOT_FOUND));
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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let ldapObjects = [];
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result.on('searchEntry', entry => ldapObjects.push(entry.object));
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result.on('error', error => callback(new BoxError(BoxError.EXTERNAL_ERROR, error)));
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result.on('end', function (result) {
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client.unbind();
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if (result.status !== 0) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Server returned status ' + result.status));
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if (ldapObjects.length === 0) return callback(new BoxError(BoxError.NOT_FOUND));
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callback(null, ldapObjects[0]);
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});
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});
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});
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}
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// TODO support search by email
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function ldapUserSearch(externalLdapConfig, options, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof options, 'object');
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assert.strictEqual(typeof callback, 'function');
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getClient(externalLdapConfig, true, function (error, client) {
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if (error) return callback(error);
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let searchOptions = {
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paged: true,
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filter: ldap.parseFilter(externalLdapConfig.filter),
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scope: 'sub' // We may have to make this configurable
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};
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if (options.filter) { // https://github.com/ldapjs/node-ldapjs/blob/master/docs/filters.md
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let extraFilter = ldap.parseFilter(options.filter);
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searchOptions.filter = new ldap.AndFilter({ filters: [ extraFilter, searchOptions.filter ] });
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}
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debug(`Listing users at ${externalLdapConfig.baseDn} with filter ${searchOptions.filter.toString()}`);
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client.search(externalLdapConfig.baseDn, searchOptions, function (error, result) {
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if (error instanceof ldap.NoSuchObjectError) return callback(new BoxError(BoxError.NOT_FOUND));
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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let ldapUsers = [];
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result.on('searchEntry', entry => ldapUsers.push(entry.object));
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result.on('error', error => callback(new BoxError(BoxError.EXTERNAL_ERROR, error)));
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result.on('end', function (result) {
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client.unbind();
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if (result.status !== 0) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Server returned status ' + result.status));
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callback(null, ldapUsers);
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});
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});
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});
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}
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function ldapGroupSearch(externalLdapConfig, options, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof options, 'object');
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assert.strictEqual(typeof callback, 'function');
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getClient(externalLdapConfig, true, function (error, client) {
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if (error) return callback(error);
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let searchOptions = {
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paged: true,
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scope: 'sub' // We may have to make this configurable
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};
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if (externalLdapConfig.groupFilter) searchOptions.filter = ldap.parseFilter(externalLdapConfig.groupFilter);
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if (options.filter) { // https://github.com/ldapjs/node-ldapjs/blob/master/docs/filters.md
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let extraFilter = ldap.parseFilter(options.filter);
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searchOptions.filter = new ldap.AndFilter({ filters: [ extraFilter, searchOptions.filter ] });
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}
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debug(`Listing groups at ${externalLdapConfig.groupBaseDn} with filter ${searchOptions.filter.toString()}`);
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client.search(externalLdapConfig.groupBaseDn, searchOptions, function (error, result) {
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if (error instanceof ldap.NoSuchObjectError) return callback(new BoxError(BoxError.NOT_FOUND));
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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let ldapGroups = [];
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result.on('searchEntry', entry => ldapGroups.push(entry.object));
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result.on('error', error => callback(new BoxError(BoxError.EXTERNAL_ERROR, error)));
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result.on('end', function (result) {
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client.unbind();
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if (result.status !== 0) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Server returned status ' + result.status));
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callback(null, ldapGroups);
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});
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});
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});
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}
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function testConfig(config, callback) {
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assert.strictEqual(typeof config, 'object');
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assert.strictEqual(typeof callback, 'function');
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if (config.provider === 'noop') return callback();
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if (!config.url) return callback(new BoxError(BoxError.BAD_FIELD, 'url must not be empty'));
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if (!config.url.startsWith('ldap://') && !config.url.startsWith('ldaps://')) return callback(new BoxError(BoxError.BAD_FIELD, 'url is missing ldap:// or ldaps:// prefix'));
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if (!config.usernameField) config.usernameField = 'uid';
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// bindDn may not be a dn!
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if (!config.baseDn) return callback(new BoxError(BoxError.BAD_FIELD, 'basedn must not be empty'));
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try { ldap.parseDN(config.baseDn); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid baseDn')); }
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if (!config.filter) return callback(new BoxError(BoxError.BAD_FIELD, 'filter must not be empty'));
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try { ldap.parseFilter(config.filter); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid filter')); }
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if ('syncGroups' in config && typeof config.syncGroups !== 'boolean') return callback(new BoxError(BoxError.BAD_FIELD, 'syncGroups must be a boolean'));
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if ('acceptSelfSignedCerts' in config && typeof config.acceptSelfSignedCerts !== 'boolean') return callback(new BoxError(BoxError.BAD_FIELD, 'acceptSelfSignedCerts must be a boolean'));
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if (config.syncGroups) {
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if (!config.groupBaseDn) return callback(new BoxError(BoxError.BAD_FIELD, 'groupBaseDn must not be empty'));
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try { ldap.parseDN(config.groupBaseDn); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid groupBaseDn')); }
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if (!config.groupFilter) return callback(new BoxError(BoxError.BAD_FIELD, 'groupFilter must not be empty'));
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try { ldap.parseFilter(config.groupFilter); } catch (e) { return callback(new BoxError(BoxError.BAD_FIELD, 'invalid groupFilter')); }
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if (!config.groupnameField || typeof config.groupnameField !== 'string') return callback(new BoxError(BoxError.BAD_FIELD, 'groupFilter must not be empty'));
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}
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getClient(config, true, function (error, client) {
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if (error) return callback(error);
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var opts = {
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filter: config.filter,
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scope: 'sub'
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};
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client.search(config.baseDn, opts, function (error, result) {
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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result.on('searchEntry', function (/* entry */) {});
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result.on('error', function (error) { client.unbind(); callback(new BoxError(BoxError.BAD_FIELD, `Unable to search directory: ${error.message}`)); });
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result.on('end', function (/* result */) { client.unbind(); callback(); });
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});
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});
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}
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function search(identifier, callback) {
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assert.strictEqual(typeof identifier, 'string');
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assert.strictEqual(typeof callback, 'function');
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settings.getExternalLdapConfig(function (error, externalLdapConfig) {
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if (error) return callback(error);
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if (externalLdapConfig.provider === 'noop') return callback(new BoxError(BoxError.BAD_STATE, 'not enabled'));
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ldapUserSearch(externalLdapConfig, { filter: `${externalLdapConfig.usernameField}=${identifier}` }, function (error, ldapUsers) {
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if (error) return callback(error);
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// translate ldap properties to ours
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let users = ldapUsers.map(function (u) { return translateUser(externalLdapConfig, u); });
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callback(null, users);
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});
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});
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}
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function createAndVerifyUserIfNotExist(identifier, password, callback) {
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assert.strictEqual(typeof identifier, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof callback, 'function');
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settings.getExternalLdapConfig(function (error, externalLdapConfig) {
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if (error) return callback(error);
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if (externalLdapConfig.provider === 'noop') return callback(new BoxError(BoxError.BAD_STATE, 'not enabled'));
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if (!externalLdapConfig.autoCreate) return callback(new BoxError(BoxError.BAD_STATE, 'auto create not enabled'));
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ldapUserSearch(externalLdapConfig, { filter: `${externalLdapConfig.usernameField}=${identifier}` }, function (error, ldapUsers) {
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if (error) return callback(error);
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if (ldapUsers.length === 0) return callback(new BoxError(BoxError.NOT_FOUND));
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if (ldapUsers.length > 1) return callback(new BoxError(BoxError.CONFLICT));
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let user = translateUser(externalLdapConfig, ldapUsers[0]);
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if (!validUserRequirements(user)) return callback(new BoxError(BoxError.BAD_FIELD));
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users.create(user.username, null /* password */, user.email, user.displayName, { source: 'ldap' }, auditSource.EXTERNAL_LDAP_AUTO_CREATE, function (error, user) {
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if (error) {
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debug(`createAndVerifyUserIfNotExist: Failed to auto create user ${user.username}`, error);
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return callback(new BoxError(BoxError.INTERNAL_ERROR));
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}
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verifyPassword(user, password, function (error) {
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if (error) return callback(error);
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callback(null, user);
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});
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});
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});
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});
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}
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function verifyPassword(user, password, callback) {
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assert.strictEqual(typeof user, 'object');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof callback, 'function');
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settings.getExternalLdapConfig(function (error, externalLdapConfig) {
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if (error) return callback(error);
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if (externalLdapConfig.provider === 'noop') return callback(new BoxError(BoxError.BAD_STATE, 'not enabled'));
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ldapUserSearch(externalLdapConfig, { filter: `${externalLdapConfig.usernameField}=${user.username}` }, function (error, ldapUsers) {
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if (error) return callback(error);
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if (ldapUsers.length === 0) return callback(new BoxError(BoxError.NOT_FOUND));
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if (ldapUsers.length > 1) return callback(new BoxError(BoxError.CONFLICT));
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getClient(externalLdapConfig, false, function (error, client) {
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if (error) return callback(error);
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client.bind(ldapUsers[0].dn, password, function (error) {
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if (error instanceof ldap.InvalidCredentialsError) return callback(new BoxError(BoxError.INVALID_CREDENTIALS));
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if (error) return callback(new BoxError(BoxError.EXTERNAL_ERROR, error));
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callback(null, translateUser(externalLdapConfig, ldapUsers[0]));
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});
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});
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});
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});
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}
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function startSyncer(callback) {
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assert.strictEqual(typeof callback, 'function');
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settings.getExternalLdapConfig(function (error, externalLdapConfig) {
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if (error) return callback(error);
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if (externalLdapConfig.provider === 'noop') return callback(new BoxError(BoxError.BAD_STATE, 'not enabled'));
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tasks.add(tasks.TASK_SYNC_EXTERNAL_LDAP, [], function (error, taskId) {
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if (error) return callback(error);
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tasks.startTask(taskId, {}, function (error, result) {
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debug('sync: done', error, result);
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});
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callback(null, taskId);
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});
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});
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}
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function syncUsers(externalLdapConfig, progressCallback, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof progressCallback, 'function');
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assert.strictEqual(typeof callback, 'function');
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ldapUserSearch(externalLdapConfig, {}, function (error, ldapUsers) {
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if (error) return callback(error);
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debug(`Found ${ldapUsers.length} users`);
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let percent = 10;
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let step = 30/(ldapUsers.length+1); // ensure no divide by 0
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// we ignore all errors here and just log them for now
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async.eachSeries(ldapUsers, function (user, iteratorCallback) {
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user = translateUser(externalLdapConfig, user);
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if (!validUserRequirements(user)) return iteratorCallback();
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percent += step;
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progressCallback({ percent, message: `Syncing... ${user.username}` });
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users.getByUsername(user.username, function (error, result) {
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if (error && error.reason !== BoxError.NOT_FOUND) return iteratorCallback(error);
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if (!result) {
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debug(`[adding user] username=${user.username} email=${user.email} displayName=${user.displayName}`);
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users.create(user.username, null /* password */, user.email, user.displayName, { source: 'ldap' }, auditSource.EXTERNAL_LDAP_TASK, function (error) {
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if (error) debug('syncUsers: Failed to create user', user, error.message);
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iteratorCallback();
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});
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} else if (result.source !== 'ldap') {
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debug(`[conflicting user] username=${user.username} email=${user.email} displayName=${user.displayName}`);
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iteratorCallback();
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} else if (result.email !== user.email || result.displayName !== user.displayName) {
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debug(`[updating user] username=${user.username} email=${user.email} displayName=${user.displayName}`);
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users.update(result, { email: user.email, fallbackEmail: user.email, displayName: user.displayName }, auditSource.EXTERNAL_LDAP_TASK, function (error) {
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if (error) debug('Failed to update user', user, error);
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iteratorCallback();
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});
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} else {
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// user known and up-to-date
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debug(`[up-to-date user] username=${user.username} email=${user.email} displayName=${user.displayName}`);
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iteratorCallback();
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}
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});
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}, callback);
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});
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}
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function syncGroups(externalLdapConfig, progressCallback, callback) {
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assert.strictEqual(typeof externalLdapConfig, 'object');
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assert.strictEqual(typeof progressCallback, 'function');
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assert.strictEqual(typeof callback, 'function');
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if (!externalLdapConfig.syncGroups) {
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debug('Group sync is disabled');
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progressCallback({ percent: 70, message: 'Skipping group sync...' });
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return callback(null, []);
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}
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ldapGroupSearch(externalLdapConfig, {}, function (error, ldapGroups) {
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if (error) return callback(error);
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debug(`Found ${ldapGroups.length} groups`);
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let percent = 40;
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let step = 30/(ldapGroups.length+1); // ensure no divide by 0
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// we ignore all non internal errors here and just log them for now
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async.eachSeries(ldapGroups, function (ldapGroup, iteratorCallback) {
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var groupName = ldapGroup[externalLdapConfig.groupnameField];
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if (!groupName) return iteratorCallback();
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// some servers return empty array for unknown properties :-/
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if (typeof groupName !== 'string') return iteratorCallback();
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// groups are lowercase
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groupName = groupName.toLowerCase();
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percent += step;
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progressCallback({ percent, message: `Syncing... ${groupName}` });
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|
|
groups.getByName(groupName, function (error, result) {
|
|
if (error && error.reason !== BoxError.NOT_FOUND) return iteratorCallback(error);
|
|
|
|
if (!result) {
|
|
debug(`[adding group] groupname=${groupName}`);
|
|
|
|
groups.create(groupName, 'ldap', function (error) {
|
|
if (error) debug('syncGroups: Failed to create group', groupName, error);
|
|
iteratorCallback();
|
|
});
|
|
} else {
|
|
debug(`[up-to-date group] groupname=${groupName}`);
|
|
|
|
iteratorCallback();
|
|
}
|
|
});
|
|
}, function (error) {
|
|
if (error) return callback(error);
|
|
|
|
debug('sync: ldap sync is done', error);
|
|
|
|
callback(error);
|
|
});
|
|
});
|
|
}
|
|
|
|
function syncGroupUsers(externalLdapConfig, progressCallback, callback) {
|
|
assert.strictEqual(typeof externalLdapConfig, 'object');
|
|
assert.strictEqual(typeof progressCallback, 'function');
|
|
assert.strictEqual(typeof callback, 'function');
|
|
|
|
if (!externalLdapConfig.syncGroups) {
|
|
debug('Group users sync is disabled');
|
|
progressCallback({ percent: 99, message: 'Skipping group users sync...' });
|
|
return callback(null, []);
|
|
}
|
|
|
|
groups.getAll(function (error, result) {
|
|
if (error) return callback(error);
|
|
|
|
var ldapGroups = result.filter(function (g) { return g.source === 'ldap'; });
|
|
debug(`Found ${ldapGroups.length} groups to sync users`);
|
|
|
|
async.eachSeries(ldapGroups, function (group, iteratorCallback) {
|
|
debug(`Sync users for group ${group.name}`);
|
|
|
|
ldapGroupSearch(externalLdapConfig, {}, function (error, result) {
|
|
if (error) return callback(error);
|
|
if (!result || result.length === 0) {
|
|
debug(`syncGroupUsers: Unable to find group ${group.name} ignoring for now.`);
|
|
return callback();
|
|
}
|
|
|
|
// since our group names are lowercase we cannot use potentially case matching ldap filters
|
|
let found = result.find(function (r) {
|
|
if (!r[externalLdapConfig.groupnameField]) return false;
|
|
return r[externalLdapConfig.groupnameField].toLowerCase() === group.name;
|
|
});
|
|
|
|
if (!found) {
|
|
debug(`syncGroupUsers: Unable to find group ${group.name} ignoring for now.`);
|
|
return callback();
|
|
}
|
|
|
|
var ldapGroupMembers = found.member || found.uniqueMember || [];
|
|
|
|
// if only one entry is in the group ldap returns a string, not an array!
|
|
if (typeof ldapGroupMembers === 'string') ldapGroupMembers = [ ldapGroupMembers ];
|
|
|
|
debug(`Group ${group.name} has ${ldapGroupMembers.length} members.`);
|
|
|
|
async.eachSeries(ldapGroupMembers, function (memberDn, iteratorCallback) {
|
|
ldapGetByDN(externalLdapConfig, memberDn, function (error, result) {
|
|
if (error) {
|
|
debug(`Failed to get ${memberDn}:`, error);
|
|
return iteratorCallback();
|
|
}
|
|
|
|
debug(`Found member object at ${memberDn} adding to group ${group.name}`);
|
|
|
|
const username = result[externalLdapConfig.usernameField];
|
|
if (!username) return iteratorCallback();
|
|
|
|
users.getByUsername(username, function (error, result) {
|
|
if (error) {
|
|
debug(`syncGroupUsers: Failed to get user by username ${username}`, error);
|
|
return iteratorCallback();
|
|
}
|
|
|
|
groups.addMember(group.id, result.id, function (error) {
|
|
if (error && error.reason !== BoxError.ALREADY_EXISTS) debug('syncGroupUsers: Failed to add member', error);
|
|
iteratorCallback();
|
|
});
|
|
});
|
|
});
|
|
}, function (error) {
|
|
if (error) debug('syncGroupUsers: ', error);
|
|
iteratorCallback();
|
|
});
|
|
});
|
|
}, callback);
|
|
});
|
|
}
|
|
|
|
function sync(progressCallback, callback) {
|
|
assert.strictEqual(typeof progressCallback, 'function');
|
|
assert.strictEqual(typeof callback, 'function');
|
|
|
|
progressCallback({ percent: 10, message: 'Starting ldap user sync' });
|
|
|
|
settings.getExternalLdapConfig(function (error, externalLdapConfig) {
|
|
if (error) return callback(error);
|
|
if (externalLdapConfig.provider === 'noop') return callback(new BoxError(BoxError.BAD_STATE, 'not enabled'));
|
|
|
|
async.series([
|
|
syncUsers.bind(null, externalLdapConfig, progressCallback),
|
|
syncGroups.bind(null, externalLdapConfig, progressCallback),
|
|
syncGroupUsers.bind(null, externalLdapConfig, progressCallback)
|
|
], function (error) {
|
|
if (error) return callback(error);
|
|
|
|
progressCallback({ percent: 100, message: 'Done' });
|
|
|
|
debug('sync: ldap sync is done', error);
|
|
|
|
callback(error);
|
|
});
|
|
});
|
|
}
|