cordova-plugin-ete-authdialog/src/ios/authDialog.js

Adds support for authentication dialogs into Apache Cordova.

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

/*global cordova, module*/

var authDialog = {};

function authenticateOnce(uri, successCallback, errorCallback, userName, password, allowBypassAuth, alertTitle, alertMessage, alertCancelButton, alertLoginButton) {
    cordova.exec(successCallback, errorCallback, 'AuthDialog', 'authenticate', [uri, userName, password, allowBypassAuth, alertTitle, alertMessage, alertCancelButton, alertLoginButton]);
}

authDialog.authenticate = function (
    uri,
    /* optional*/ successCallback,
    /* optional*/ errorCallback,
    /* optional*/ userName,
    /* optional*/ password,
    /* optional*/ maxAttempts,
    /* optional*/ alertTitle,
    /* optional*/ alertMessage,
    /* optional*/ alertCancelButton,
    /* optional*/ alertLoginButton) {

    if (!alertTitle) {
        alertTitle = 'Authentication Dialog';
    }

    if (!alertMessage) {
        alertMessage = 'Active directory authentication';
    }

    if (!alertCancelButton) {
        alertCancelButton = 'Cancel';
    }

    if (!alertLoginButton) {
        alertLoginButton = 'Login';
    }

    if (!uri) {
        throw new Error('Uri is not specified');
    }

    userName = userName || null;
    password = password || null;
    maxAttempts = maxAttempts || 5;

    errorCallback = errorCallback || function () { };
    successCallback = successCallback || function () { };

    var onError = function (err) {

        if (maxAttempts-- <= 0 || err === "cancelled") {
            errorCallback(err);
            return;
        }

        // if first attemp has failed then user name and password are invalid
        // so we should ask user to provide another credentials so we don't pass user/password
        setTimeout(function () {
            authenticateOnce(uri, successCallback, onError, null, null, false, alertTitle, alertMessage, alertCancelButton, alertLoginButton);
        });
    };

    // allowBypass specifies whether app should try to resolve authentication challenge automatically
    // first (cached credentials). This should be done only if no user and password are provided;
    // this makes it possible to avoid passing credentials every app start
    authenticateOnce(uri, successCallback, onError, userName, password, !(userName || password), alertTitle, alertMessage, alertCancelButton, alertLoginButton);
};

authDialog.logout = function (successCallback, errorCallback) {
    cordova.exec(successCallback, errorCallback, 'AuthDialog', 'logout', []);
}

module.exports = authDialog;