layer8-interceptor-wasm/index.js

Layer8 interceptor for data encryption and decryption

/*
Copyright (c) 2023, Layer8. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

1.  Redistributions of source code must retain the above copyright notice, this 
    list of conditions and the following disclaimer.
2.  Redistributions in binary form must reproduce the above copyright notice, this 
    list of conditions and the following disclaimer in the documentation and/or 
    other materials provided with the distribution.
3.  Neither the name of Layer8 nor the names of its contributors may be used to 
    endorse or promote products derived from this software without specific prior 
    written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
const _ = require("./wasm_exec.js");
const wasmBin = require("./dist/interceptor.json");

window.Buffer = window.Buffer || require('buffer').Buffer;

const decode = (encoded) => {
    var binaryString =  Buffer.from(encoded, 'base64').toString('binary');
    var bytes = new Uint8Array(binaryString.length);
    for (var i = 0; i < binaryString.length; i++) {
        bytes[i] = binaryString.charCodeAt(i);
    }
    return bytes.buffer;
}

const initializeL8 = async () => {
    const go = new Go();
    const importObject = go.importObject;
    return await WebAssembly.instantiate(decode(wasmBin), importObject).then((result) => {
        go.run(result.instance);
        globalThis.layer8 = layer8;
    });
};

export default initializeL8;