c5db.codec.WebSocketServerIndexPage.java Source code

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/*
 * Copyright 2014 WANdisco
 *
 *  WANdisco 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.
 */

package c5db.codec;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.util.CharsetUtil;

/**
 * Generates the demo HTML page which is served at http://localhost:8080/
 */
public final class WebSocketServerIndexPage {

    private static final String NEWLINE = "\r\n";

    public static ByteBuf getContent(String webSocketLocation) {
        return Unpooled.copiedBuffer("<html><head><title>Web Socket Test</title></head>" + NEWLINE + "<body>"
                + NEWLINE + "<script type=\"text/javascript\">" + NEWLINE + "var socket;" + NEWLINE
                + "if (!window.WebSocket) {" + NEWLINE + "  window.WebSocket = window.MozWebSocket;" + NEWLINE + '}'
                + NEWLINE + "if (window.WebSocket) {" + NEWLINE + "  socket = new WebSocket(\"" + webSocketLocation
                + "\");" + NEWLINE + "  socket.onmessage = function(event) {" + NEWLINE
                + "    var ta = document.getElementById('responseText');" + NEWLINE
                + "    ta.value = ta.value + '\\n' + event.data" + NEWLINE + "  };" + NEWLINE
                + "  socket.onopen = function(event) {" + NEWLINE
                + "    var ta = document.getElementById('responseText');" + NEWLINE
                + "    ta.value = \"Web Socket opened!\";" + NEWLINE + "  };" + NEWLINE
                + "  socket.onclose = function(event) {" + NEWLINE
                + "    var ta = document.getElementById('responseText');" + NEWLINE
                + "    ta.value = ta.value + \"Web Socket closed\"; " + NEWLINE + "  };" + NEWLINE + "} else {"
                + NEWLINE + "  alert(\"Your browser does not support Web Socket.\");" + NEWLINE + '}' + NEWLINE
                + NEWLINE + "function send(message) {" + NEWLINE + "  if (!window.WebSocket) { return; }" + NEWLINE
                + "  if (socket.readyState == WebSocket.OPEN) {" + NEWLINE + "    socket.send(message);" + NEWLINE
                + "  } else {" + NEWLINE + "    alert(\"The socket is not open.\");" + NEWLINE + "  }" + NEWLINE
                + '}' + NEWLINE + "</script>" + NEWLINE + "<form onsubmit=\"return false;\">" + NEWLINE
                + "<input type=\"text\" name=\"message\" value=\"Hello, World!\"/>"
                + "<input type=\"button\" value=\"Send Web Socket Data\"" + NEWLINE
                + "       onclick=\"send(this.form.message.value)\" />" + NEWLINE + "<h3>Output</h3>" + NEWLINE
                + "<textarea id=\"responseText\" style=\"width:500px;height:300px;\"></textarea>" + NEWLINE
                + "</form>" + NEWLINE + "</body>" + NEWLINE + "</html>" + NEWLINE, CharsetUtil.US_ASCII);
    }

    private WebSocketServerIndexPage() {
        // Unused
    }
}