BinaryExtension.js

/*
 * Copyright (c) 2008-2019 the original author or authors.
 *
 * 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.
 */

(function(root, factory){
    if (typeof exports === 'object') {
        module.exports = factory(require('./cometd'));
    } else if (typeof define === 'function' && define.amd) {
        define(['./cometd'], factory);
    } else {
        factory(root.org.cometd);
    }
}(this, function(cometdModule) {
    /**
     * Client-side extension that converts binary JavaScript objects
     * (ArrayBuffer, DataView and TypedArrays) into a textual
     * representation suitable for JSON, using the Z85 algorithm.
     */
    return cometdModule.BinaryExtension = function() {
        this.incoming = function(message) {
            if (!/^\/meta\//.test(message.channel)) {
                var ext = message.ext;
                if (ext) {
                    var binaryExt = ext.binary;
                    if (binaryExt) {
                        message.data.data = cometdModule.Z85.decode(message.data.data);
                    }
                }
            }
            return message;
        };

        this.outgoing = function(message) {
            if (!/^\/meta\//.test(message.channel)) {
                var ext = message.ext;
                if (ext) {
                    var binaryExt = ext.binary;
                    if (binaryExt) {
                        message.data.data = cometdModule.Z85.encode(message.data.data);
                    }
                }
            }
            return message;
        }
    }
}));