gun/sea/shim.js

37 lines
1.2 KiB
JavaScript

const SEA = require('./root')
const Buffer = require('./buffer')
const api = {Buffer: Buffer}
var o = {};
if(SEA.window){
api.crypto = window.crypto || window.msCrypto
api.subtle = (api.crypto||o).subtle || (api.crypto||o).webkitSubtle;
api.TextEncoder = window.TextEncoder;
api.TextDecoder = window.TextDecoder;
api.random = (len) => Buffer.from(api.crypto.getRandomValues(new Uint8Array(Buffer.alloc(len))));
}
if(!api.TextDecoder)
{
const { TextEncoder, TextDecoder } = require('text-encoding');
api.TextDecoder = TextDecoder;
api.TextEncoder = TextEncoder;
}
if(!api.crypto)
{
try
{
var crypto = require('crypto', 1);
Object.assign(api, {
crypto,
random: (len) => Buffer.from(crypto.randomBytes(len))
});
const { Crypto: WebCrypto } = require('@peculiar/webcrypto', 1);
api.ossl = api.subtle = new WebCrypto({directory: 'ossl'}).subtle // ECDH
}
catch(e){
console.log("text-encoding and peculiar/nwebcrypto may not be included by default, please add it to your package.json!");
}}
module.exports = api