gwt.material.design.client.pwa.push.helper.PushCryptoHelper Maven / Gradle / Ivy

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A Material Design look and feel for GWT Applications

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/*
 * #%L
 * GwtMaterial
 * %%
 * Copyright (C) 2015 - 2017 GwtMaterialDesign
 * %%
 * 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.
 * #L%
 */
package gwt.material.design.client.pwa.push.helper;

import com.google.gwt.typedarrays.shared.Uint8Array;

public class PushCryptoHelper {

    //TODO: Convert to JSInterop
    public static native Uint8Array Base64ToArrayBuffer(String base64String)/*-{
        var padding = '='.repeat((4 - base64String.length % 4) % 4);
        var base64 = (base64String + padding)
            .replace(/\-/g, '+')
            .replace(/_/g, '/');

        var rawData = window.atob(base64);
        var outputArray = new Uint8Array(rawData.length);

        for (var i = 0; i < rawData.length; ++i) {
            outputArray[i] = rawData.charCodeAt(i);
        }
        return outputArray;
    }-*/;

    //TODO: Convert to JSInterop
    public static native String arrayBufferToBase64(byte[] arrayBuffer) /*-{
        return btoa(String.fromCharCode.apply(null, new Uint8Array(arrayBuffer)));
    }-*/;
}