Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
/* globals module */
/*
* Per the Node.js documentation, a Buffer is an instance of Uint8Array, but
* additional class methods are missing for it.
*
*/
class Buffer extends Uint8Array {
static isBuffer(obj) {
return obj instanceof Uint8Array;
}
// Note that this doesn't fully implement allocate, only enough is implemented
// for the base-x package to function properly.
static alloc(size) {
return new Buffer(size);
}
static allocUnsafe(size) {
return new Buffer(size);
}
// These methods are required for the base64 encoding used by the SDK. If we
// didn't have to provide a global Buffer implementation, these two methods
// would not be used.
static from(value, type) {
if (type === "base64") {
return super.from(
atob(value.replaceAll("-", "+").replaceAll("_", "/")),
c => c.charCodeAt(0)
);
}
return super.from(value);
}
toString(type) {
if (type === "base64") {
return btoa(
this.reduce((acc, current) => acc + String.fromCharCode(current), "")
);
}
return super.toString();
}
}
module.exports = {
Buffer,
};