mirror of
https://github.com/amark/gun.git
synced 2025-03-30 15:08:33 +00:00
1332 lines
53 KiB
JavaScript
1332 lines
53 KiB
JavaScript
;(function(){
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/* UNBUILD */
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function USE(arg, req){
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return req? require(arg) : arg.slice? USE[R(arg)] : function(mod, path){
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arg(mod = {exports: {}});
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USE[R(path)] = mod.exports;
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}
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function R(p){
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return p.split('/').slice(-1).toString().replace('.js','');
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}
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}
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if(typeof module !== "undefined"){ var MODULE = module }
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/* UNBUILD */
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;USE(function(module){
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// Security, Encryption, and Authorization: SEA.js
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// MANDATORY READING: https://gun.eco/explainers/data/security.html
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// IT IS IMPLEMENTED IN A POLYFILL/SHIM APPROACH.
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// THIS IS AN EARLY ALPHA!
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if(typeof window !== "undefined"){ module.window = window }
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var tmp = module.window || module;
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var SEA = tmp.SEA || {};
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if(SEA.window = module.window){ SEA.window.SEA = SEA }
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try{ if(typeof MODULE !== "undefined"){ MODULE.exports = SEA } }catch(e){}
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module.exports = SEA;
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})(USE, './root');
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;USE(function(module){
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var SEA = USE('./root');
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try{ if(SEA.window){
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if(location.protocol.indexOf('s') < 0
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&& location.host.indexOf('localhost') < 0
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&& location.protocol.indexOf('file:') < 0){
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location.protocol = 'https:'; // WebCrypto does NOT work without HTTPS!
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}
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} }catch(e){}
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})(USE, './https');
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;USE(function(module){
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if(typeof btoa === "undefined"){
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if(typeof Buffer === "undefined") {
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global.Buffer = require("buffer").Buffer
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}
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global.btoa = function (data) { return Buffer.from(data, "binary").toString("base64"); };
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global.atob = function (data) { return Buffer.from(data, "base64").toString("binary"); };
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}
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})(USE, './base64');
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;USE(function(module){
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USE('./base64');
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// This is Array extended to have .toString(['utf8'|'hex'|'base64'])
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function SeaArray() {}
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Object.assign(SeaArray, { from: Array.from })
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SeaArray.prototype = Object.create(Array.prototype)
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SeaArray.prototype.toString = function(enc, start, end) { enc = enc || 'utf8'; start = start || 0;
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const length = this.length
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if (enc === 'hex') {
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const buf = new Uint8Array(this)
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return [ ...Array(((end && (end + 1)) || length) - start).keys()]
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.map((i) => buf[ i + start ].toString(16).padStart(2, '0')).join('')
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}
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if (enc === 'utf8') {
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return Array.from(
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{ length: (end || length) - start },
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(_, i) => String.fromCharCode(this[ i + start])
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).join('')
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}
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if (enc === 'base64') {
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return btoa(this)
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}
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}
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module.exports = SeaArray;
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})(USE, './array');
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;USE(function(module){
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USE('./base64');
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// This is Buffer implementation used in SEA. Functionality is mostly
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// compatible with NodeJS 'safe-buffer' and is used for encoding conversions
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// between binary and 'hex' | 'utf8' | 'base64'
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// See documentation and validation for safe implementation in:
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// https://github.com/feross/safe-buffer#update
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var SeaArray = USE('./array');
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function SafeBuffer(...props) {
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console.warn('new SafeBuffer() is depreciated, please use SafeBuffer.from()')
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return SafeBuffer.from(...props)
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}
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SafeBuffer.prototype = Object.create(Array.prototype)
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Object.assign(SafeBuffer, {
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// (data, enc) where typeof data === 'string' then enc === 'utf8'|'hex'|'base64'
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from() {
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if (!Object.keys(arguments).length || arguments[0]==null) {
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throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
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}
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const input = arguments[0]
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let buf
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if (typeof input === 'string') {
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const enc = arguments[1] || 'utf8'
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if (enc === 'hex') {
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const bytes = input.match(/([\da-fA-F]{2})/g)
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.map((byte) => parseInt(byte, 16))
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if (!bytes || !bytes.length) {
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throw new TypeError('Invalid first argument for type \'hex\'.')
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}
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buf = SeaArray.from(bytes)
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} else if (enc === 'utf8') {
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const length = input.length
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const words = new Uint16Array(length)
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Array.from({ length: length }, (_, i) => words[i] = input.charCodeAt(i))
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buf = SeaArray.from(words)
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} else if (enc === 'base64') {
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const dec = atob(input)
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const length = dec.length
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const bytes = new Uint8Array(length)
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Array.from({ length: length }, (_, i) => bytes[i] = dec.charCodeAt(i))
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buf = SeaArray.from(bytes)
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} else if (enc === 'binary') {
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buf = SeaArray.from(input)
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} else {
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console.info('SafeBuffer.from unknown encoding: '+enc)
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}
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return buf
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}
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const byteLength = input.byteLength // what is going on here? FOR MARTTI
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const length = input.byteLength ? input.byteLength : input.length
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if (length) {
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let buf
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if (input instanceof ArrayBuffer) {
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buf = new Uint8Array(input)
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}
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return SeaArray.from(buf || input)
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}
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},
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// This is 'safe-buffer.alloc' sans encoding support
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alloc(length, fill = 0 /*, enc*/ ) {
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return SeaArray.from(new Uint8Array(Array.from({ length: length }, () => fill)))
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},
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// This is normal UNSAFE 'buffer.alloc' or 'new Buffer(length)' - don't use!
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allocUnsafe(length) {
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return SeaArray.from(new Uint8Array(Array.from({ length : length })))
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},
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// This puts together array of array like members
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concat(arr) { // octet array
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if (!Array.isArray(arr)) {
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throw new TypeError('First argument must be Array containing ArrayBuffer or Uint8Array instances.')
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}
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return SeaArray.from(arr.reduce((ret, item) => ret.concat(Array.from(item)), []))
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}
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})
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SafeBuffer.prototype.from = SafeBuffer.from
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SafeBuffer.prototype.toString = SeaArray.prototype.toString
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module.exports = SafeBuffer;
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})(USE, './buffer');
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;USE(function(module){
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const SEA = USE('./root')
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const Buffer = USE('./buffer')
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const api = {Buffer: Buffer}
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var o = {};
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// ideally we can move away from JSON entirely? unlikely due to compatibility issues... oh well.
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JSON.parseAsync = JSON.parseAsync || function(t,cb,r){ var u; try{ cb(u, JSON.parse(t,r)) }catch(e){ cb(e) } }
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JSON.stringifyAsync = JSON.stringifyAsync || function(v,cb,r,s){ var u; try{ cb(u, JSON.stringify(v,r,s)) }catch(e){ cb(e) } }
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api.parse = function(t,r){ return new Promise(function(res, rej){
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JSON.parseAsync(t,function(err, raw){ err? rej(err) : res(raw) },r);
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})}
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api.stringify = function(v,r,s){ return new Promise(function(res, rej){
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JSON.stringifyAsync(v,function(err, raw){ err? rej(err) : res(raw) },r,s);
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})}
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if(SEA.window){
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api.crypto = window.crypto || window.msCrypto
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api.subtle = (api.crypto||o).subtle || (api.crypto||o).webkitSubtle;
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api.TextEncoder = window.TextEncoder;
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api.TextDecoder = window.TextDecoder;
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api.random = (len) => Buffer.from(api.crypto.getRandomValues(new Uint8Array(Buffer.alloc(len))));
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}
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if(!api.TextDecoder)
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{
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const { TextEncoder, TextDecoder } = require('text-encoding');
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api.TextDecoder = TextDecoder;
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api.TextEncoder = TextEncoder;
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}
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if(!api.crypto)
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{
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try
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{
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var crypto = USE('crypto', 1);
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Object.assign(api, {
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crypto,
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random: (len) => Buffer.from(crypto.randomBytes(len))
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});
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const { Crypto: WebCrypto } = USE('@peculiar/webcrypto', 1);
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api.ossl = api.subtle = new WebCrypto({directory: 'ossl'}).subtle // ECDH
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}
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catch(e){
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console.log("text-encoding and @peculiar/webcrypto may not be included by default, please add it to your package.json!");
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}}
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module.exports = api
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})(USE, './shim');
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;USE(function(module){
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var SEA = USE('./root');
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var shim = USE('./shim');
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var s = {};
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s.pbkdf2 = {hash: {name : 'SHA-256'}, iter: 100000, ks: 64};
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s.ecdsa = {
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pair: {name: 'ECDSA', namedCurve: 'P-256'},
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sign: {name: 'ECDSA', hash: {name: 'SHA-256'}}
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};
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s.ecdh = {name: 'ECDH', namedCurve: 'P-256'};
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// This creates Web Cryptography API compliant JWK for sign/verify purposes
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s.jwk = function(pub, d){ // d === priv
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pub = pub.split('.');
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var x = pub[0], y = pub[1];
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var jwk = {kty: "EC", crv: "P-256", x: x, y: y, ext: true};
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jwk.key_ops = d ? ['sign'] : ['verify'];
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if(d){ jwk.d = d }
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return jwk;
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};
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s.keyToJwk = function(keyBytes) {
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const keyB64 = keyBytes.toString('base64');
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const k = keyB64.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
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return { kty: 'oct', k: k, ext: false, alg: 'A256GCM' };
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}
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s.recall = {
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validity: 12 * 60 * 60, // internally in seconds : 12 hours
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hook: function(props){ return props } // { iat, exp, alias, remember } // or return new Promise((resolve, reject) => resolve(props)
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};
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s.check = function(t){ return (typeof t == 'string') && ('SEA{' === t.slice(0,4)) }
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s.parse = async function p(t){ try {
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var yes = (typeof t == 'string');
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if(yes && 'SEA{' === t.slice(0,4)){ t = t.slice(3) }
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return yes ? await shim.parse(t) : t;
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} catch (e) {}
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return t;
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}
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SEA.opt = s;
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module.exports = s
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})(USE, './settings');
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;USE(function(module){
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var shim = USE('./shim');
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module.exports = async function(d, o){
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var t = (typeof d == 'string')? d : await shim.stringify(d);
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var hash = await shim.subtle.digest({name: o||'SHA-256'}, new shim.TextEncoder().encode(t));
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return shim.Buffer.from(hash);
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}
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})(USE, './sha256');
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;USE(function(module){
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// This internal func returns SHA-1 hashed data for KeyID generation
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const __shim = USE('./shim')
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const subtle = __shim.subtle
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const ossl = __shim.ossl ? __shim.ossl : subtle
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const sha1hash = (b) => ossl.digest({name: 'SHA-1'}, new ArrayBuffer(b))
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module.exports = sha1hash
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})(USE, './sha1');
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;USE(function(module){
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var SEA = USE('./root');
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var shim = USE('./shim');
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var S = USE('./settings');
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var sha = USE('./sha256');
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var u;
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SEA.work = SEA.work || (async (data, pair, cb, opt) => { try { // used to be named `proof`
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var salt = (pair||{}).epub || pair; // epub not recommended, salt should be random!
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var opt = opt || {};
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if(salt instanceof Function){
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cb = salt;
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salt = u;
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}
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data = (typeof data == 'string')? data : await shim.stringify(data);
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if('sha' === (opt.name||'').toLowerCase().slice(0,3)){
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var rsha = shim.Buffer.from(await sha(data, opt.name), 'binary').toString(opt.encode || 'base64')
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if(cb){ try{ cb(rsha) }catch(e){console.log(e)} }
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return rsha;
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}
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salt = salt || shim.random(9);
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var key = await (shim.ossl || shim.subtle).importKey('raw', new shim.TextEncoder().encode(data), {name: opt.name || 'PBKDF2'}, false, ['deriveBits']);
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var work = await (shim.ossl || shim.subtle).deriveBits({
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name: opt.name || 'PBKDF2',
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iterations: opt.iterations || S.pbkdf2.iter,
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salt: new shim.TextEncoder().encode(opt.salt || salt),
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hash: opt.hash || S.pbkdf2.hash,
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}, key, opt.length || (S.pbkdf2.ks * 8))
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data = shim.random(data.length) // Erase data in case of passphrase
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var r = shim.Buffer.from(work, 'binary').toString(opt.encode || 'base64')
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if(cb){ try{ cb(r) }catch(e){console.log(e)} }
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return r;
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} catch(e) {
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console.log(e);
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SEA.err = e;
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if(SEA.throw){ throw e }
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if(cb){ cb() }
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return;
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}});
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module.exports = SEA.work;
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})(USE, './work');
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;USE(function(module){
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var SEA = USE('./root');
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var shim = USE('./shim');
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var S = USE('./settings');
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SEA.name = SEA.name || (async (cb, opt) => { try {
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if(cb){ try{ cb() }catch(e){console.log(e)} }
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return;
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} catch(e) {
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console.log(e);
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SEA.err = e;
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if(SEA.throw){ throw e }
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if(cb){ cb() }
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return;
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}});
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//SEA.pair = async (data, proof, cb) => { try {
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SEA.pair = SEA.pair || (async (cb, opt) => { try {
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var ecdhSubtle = shim.ossl || shim.subtle;
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// First: ECDSA keys for signing/verifying...
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var sa = await shim.subtle.generateKey({name: 'ECDSA', namedCurve: 'P-256'}, true, [ 'sign', 'verify' ])
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.then(async (keys) => {
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// privateKey scope doesn't leak out from here!
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//const { d: priv } = await shim.subtle.exportKey('jwk', keys.privateKey)
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var key = {};
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key.priv = (await shim.subtle.exportKey('jwk', keys.privateKey)).d;
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var pub = await shim.subtle.exportKey('jwk', keys.publicKey);
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//const pub = Buff.from([ x, y ].join(':')).toString('base64') // old
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key.pub = pub.x+'.'+pub.y; // new
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// x and y are already base64
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// pub is UTF8 but filename/URL safe (https://www.ietf.org/rfc/rfc3986.txt)
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// but split on a non-base64 letter.
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return key;
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})
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// To include PGPv4 kind of keyId:
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// const pubId = await SEA.keyid(keys.pub)
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// Next: ECDH keys for encryption/decryption...
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try{
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var dh = await ecdhSubtle.generateKey({name: 'ECDH', namedCurve: 'P-256'}, true, ['deriveKey'])
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.then(async (keys) => {
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// privateKey scope doesn't leak out from here!
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var key = {};
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key.epriv = (await ecdhSubtle.exportKey('jwk', keys.privateKey)).d;
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var pub = await ecdhSubtle.exportKey('jwk', keys.publicKey);
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//const epub = Buff.from([ ex, ey ].join(':')).toString('base64') // old
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key.epub = pub.x+'.'+pub.y; // new
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// ex and ey are already base64
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// epub is UTF8 but filename/URL safe (https://www.ietf.org/rfc/rfc3986.txt)
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// but split on a non-base64 letter.
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return key;
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})
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}catch(e){
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if(SEA.window){ throw e }
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if(e == 'Error: ECDH is not a supported algorithm'){ console.log('Ignoring ECDH...') }
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else { throw e }
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} dh = dh || {};
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var r = { pub: sa.pub, priv: sa.priv, /* pubId, */ epub: dh.epub, epriv: dh.epriv }
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if(cb){ try{ cb(r) }catch(e){console.log(e)} }
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return r;
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} catch(e) {
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console.log(e);
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SEA.err = e;
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if(SEA.throw){ throw e }
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if(cb){ cb() }
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return;
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}});
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module.exports = SEA.pair;
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})(USE, './pair');
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;USE(function(module){
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var SEA = USE('./root');
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var shim = USE('./shim');
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var S = USE('./settings');
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var sha = USE('./sha256');
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var u;
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SEA.sign = SEA.sign || (async (data, pair, cb, opt) => { try {
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opt = opt || {};
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if(!(pair||opt).priv){
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pair = await SEA.I(null, {what: data, how: 'sign', why: opt.why});
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}
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if(u === data){ throw '`undefined` not allowed.' }
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var json = await S.parse(data);
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var check = opt.check = opt.check || json;
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if(SEA.verify && (SEA.opt.check(check) || (check && check.s && check.m))
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&& u !== await SEA.verify(check, pair)){ // don't sign if we already signed it.
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var r = await S.parse(check);
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if(!opt.raw){ r = 'SEA' + await shim.stringify(r) }
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if(cb){ try{ cb(r) }catch(e){console.log(e)} }
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return r;
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}
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var pub = pair.pub;
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var priv = pair.priv;
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var jwk = S.jwk(pub, priv);
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var hash = await sha(json);
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var sig = await (shim.ossl || shim.subtle).importKey('jwk', jwk, {name: 'ECDSA', namedCurve: 'P-256'}, false, ['sign'])
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.then((key) => (shim.ossl || shim.subtle).sign({name: 'ECDSA', hash: {name: 'SHA-256'}}, key, new Uint8Array(hash))) // privateKey scope doesn't leak out from here!
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var r = {m: json, s: shim.Buffer.from(sig, 'binary').toString(opt.encode || 'base64')}
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if(!opt.raw){ r = 'SEA' + await shim.stringify(r) }
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if(cb){ try{ cb(r) }catch(e){console.log(e)} }
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return r;
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} catch(e) {
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console.log(e);
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SEA.err = e;
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if(SEA.throw){ throw e }
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if(cb){ cb() }
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return;
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}});
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module.exports = SEA.sign;
|
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})(USE, './sign');
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|
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;USE(function(module){
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var SEA = USE('./root');
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var shim = USE('./shim');
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var S = USE('./settings');
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var sha = USE('./sha256');
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var u;
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SEA.verify = SEA.verify || (async (data, pair, cb, opt) => { try {
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var json = await S.parse(data);
|
|
if(false === pair){ // don't verify!
|
|
var raw = await S.parse(json.m);
|
|
if(cb){ try{ cb(raw) }catch(e){console.log(e)} }
|
|
return raw;
|
|
}
|
|
opt = opt || {};
|
|
// SEA.I // verify is free! Requires no user permission.
|
|
var pub = pair.pub || pair;
|
|
var key = SEA.opt.slow_leak? await SEA.opt.slow_leak(pub) : await (shim.ossl || shim.subtle).importKey('jwk', S.jwk(pub), {name: 'ECDSA', namedCurve: 'P-256'}, false, ['verify']);
|
|
var hash = await sha(json.m);
|
|
var buf, sig, check, tmp; try{
|
|
buf = shim.Buffer.from(json.s, opt.encode || 'base64'); // NEW DEFAULT!
|
|
sig = new Uint8Array(buf);
|
|
check = await (shim.ossl || shim.subtle).verify({name: 'ECDSA', hash: {name: 'SHA-256'}}, key, sig, new Uint8Array(hash));
|
|
if(!check){ throw "Signature did not match." }
|
|
}catch(e){
|
|
if(SEA.opt.fallback){
|
|
return await SEA.opt.fall_verify(data, pair, cb, opt);
|
|
}
|
|
}
|
|
var r = check? await S.parse(json.m) : u;
|
|
|
|
if(cb){ try{ cb(r) }catch(e){console.log(e)} }
|
|
return r;
|
|
} catch(e) {
|
|
console.log(e); // mismatched owner FOR MARTTI
|
|
SEA.err = e;
|
|
if(SEA.throw){ throw e }
|
|
if(cb){ cb() }
|
|
return;
|
|
}});
|
|
|
|
module.exports = SEA.verify;
|
|
// legacy & ossl leak mitigation:
|
|
|
|
var knownKeys = {};
|
|
var keyForPair = SEA.opt.slow_leak = pair => {
|
|
if (knownKeys[pair]) return knownKeys[pair];
|
|
var jwk = S.jwk(pair);
|
|
knownKeys[pair] = (shim.ossl || shim.subtle).importKey("jwk", jwk, {name: 'ECDSA', namedCurve: 'P-256'}, false, ["verify"]);
|
|
return knownKeys[pair];
|
|
};
|
|
|
|
var O = SEA.opt;
|
|
SEA.opt.fall_verify = async function(data, pair, cb, opt, f){
|
|
if(f === SEA.opt.fallback){ throw "Signature did not match" } f = f || 1;
|
|
var tmp = data||'';
|
|
data = SEA.opt.unpack(data) || data;
|
|
var json = await S.parse(data), pub = pair.pub || pair, key = await SEA.opt.slow_leak(pub);
|
|
var hash = (f <= SEA.opt.fallback)? shim.Buffer.from(await shim.subtle.digest({name: 'SHA-256'}, new shim.TextEncoder().encode(await S.parse(json.m)))) : await sha(json.m); // this line is old bad buggy code but necessary for old compatibility.
|
|
var buf; var sig; var check; try{
|
|
buf = shim.Buffer.from(json.s, opt.encode || 'base64') // NEW DEFAULT!
|
|
sig = new Uint8Array(buf)
|
|
check = await (shim.ossl || shim.subtle).verify({name: 'ECDSA', hash: {name: 'SHA-256'}}, key, sig, new Uint8Array(hash))
|
|
if(!check){ throw "Signature did not match." }
|
|
}catch(e){
|
|
buf = shim.Buffer.from(json.s, 'utf8') // AUTO BACKWARD OLD UTF8 DATA!
|
|
sig = new Uint8Array(buf)
|
|
check = await (shim.ossl || shim.subtle).verify({name: 'ECDSA', hash: {name: 'SHA-256'}}, key, sig, new Uint8Array(hash))
|
|
if(!check){ throw "Signature did not match." }
|
|
}
|
|
var r = check? await S.parse(json.m) : u;
|
|
O.fall_soul = tmp['#']; O.fall_key = tmp['.']; O.fall_val = data; O.fall_state = tmp['>'];
|
|
if(cb){ try{ cb(r) }catch(e){console.log(e)} }
|
|
return r;
|
|
}
|
|
SEA.opt.fallback = 2;
|
|
|
|
})(USE, './verify');
|
|
|
|
;USE(function(module){
|
|
var shim = USE('./shim');
|
|
var S = USE('./settings');
|
|
var sha256hash = USE('./sha256');
|
|
|
|
const importGen = async (key, salt, opt) => {
|
|
//const combo = shim.Buffer.concat([shim.Buffer.from(key, 'utf8'), salt || shim.random(8)]).toString('utf8') // old
|
|
var opt = opt || {};
|
|
const combo = key + (salt || shim.random(8)).toString('utf8'); // new
|
|
const hash = shim.Buffer.from(await sha256hash(combo), 'binary')
|
|
|
|
const jwkKey = S.keyToJwk(hash)
|
|
return await shim.subtle.importKey('jwk', jwkKey, {name:'AES-GCM'}, false, ['encrypt', 'decrypt'])
|
|
}
|
|
module.exports = importGen;
|
|
})(USE, './aeskey');
|
|
|
|
;USE(function(module){
|
|
var SEA = USE('./root');
|
|
var shim = USE('./shim');
|
|
var S = USE('./settings');
|
|
var aeskey = USE('./aeskey');
|
|
var u;
|
|
|
|
SEA.encrypt = SEA.encrypt || (async (data, pair, cb, opt) => { try {
|
|
opt = opt || {};
|
|
var key = (pair||opt).epriv || pair;
|
|
if(u === data){ throw '`undefined` not allowed.' }
|
|
if(!key){
|
|
pair = await SEA.I(null, {what: data, how: 'encrypt', why: opt.why});
|
|
key = pair.epriv || pair;
|
|
}
|
|
var msg = (typeof data == 'string')? data : await shim.stringify(data);
|
|
var rand = {s: shim.random(9), iv: shim.random(15)}; // consider making this 9 and 15 or 18 or 12 to reduce == padding.
|
|
var ct = await aeskey(key, rand.s, opt).then((aes) => (/*shim.ossl ||*/ shim.subtle).encrypt({ // Keeping the AES key scope as private as possible...
|
|
name: opt.name || 'AES-GCM', iv: new Uint8Array(rand.iv)
|
|
}, aes, new shim.TextEncoder().encode(msg)));
|
|
var r = {
|
|
ct: shim.Buffer.from(ct, 'binary').toString(opt.encode || 'base64'),
|
|
iv: rand.iv.toString(opt.encode || 'base64'),
|
|
s: rand.s.toString(opt.encode || 'base64')
|
|
}
|
|
if(!opt.raw){ r = 'SEA' + await shim.stringify(r) }
|
|
|
|
if(cb){ try{ cb(r) }catch(e){console.log(e)} }
|
|
return r;
|
|
} catch(e) {
|
|
console.log(e);
|
|
SEA.err = e;
|
|
if(SEA.throw){ throw e }
|
|
if(cb){ cb() }
|
|
return;
|
|
}});
|
|
|
|
module.exports = SEA.encrypt;
|
|
})(USE, './encrypt');
|
|
|
|
;USE(function(module){
|
|
var SEA = USE('./root');
|
|
var shim = USE('./shim');
|
|
var S = USE('./settings');
|
|
var aeskey = USE('./aeskey');
|
|
|
|
SEA.decrypt = SEA.decrypt || (async (data, pair, cb, opt) => { try {
|
|
opt = opt || {};
|
|
var key = (pair||opt).epriv || pair;
|
|
if(!key){
|
|
pair = await SEA.I(null, {what: data, how: 'decrypt', why: opt.why});
|
|
key = pair.epriv || pair;
|
|
}
|
|
var json = await S.parse(data);
|
|
var buf, bufiv, bufct; try{
|
|
buf = shim.Buffer.from(json.s, opt.encode || 'base64');
|
|
bufiv = shim.Buffer.from(json.iv, opt.encode || 'base64');
|
|
bufct = shim.Buffer.from(json.ct, opt.encode || 'base64');
|
|
var ct = await aeskey(key, buf, opt).then((aes) => (/*shim.ossl ||*/ shim.subtle).decrypt({ // Keeping aesKey scope as private as possible...
|
|
name: opt.name || 'AES-GCM', iv: new Uint8Array(bufiv), tagLength: 128
|
|
}, aes, new Uint8Array(bufct)));
|
|
}catch(e){
|
|
if('utf8' === opt.encode){ throw "Could not decrypt" }
|
|
if(SEA.opt.fallback){
|
|
opt.encode = 'utf8';
|
|
return await SEA.decrypt(data, pair, cb, opt);
|
|
}
|
|
}
|
|
var r = await S.parse(new shim.TextDecoder('utf8').decode(ct));
|
|
if(cb){ try{ cb(r) }catch(e){console.log(e)} }
|
|
return r;
|
|
} catch(e) {
|
|
console.log(e);
|
|
SEA.err = e;
|
|
if(SEA.throw){ throw e }
|
|
if(cb){ cb() }
|
|
return;
|
|
}});
|
|
|
|
module.exports = SEA.decrypt;
|
|
})(USE, './decrypt');
|
|
|
|
;USE(function(module){
|
|
var SEA = USE('./root');
|
|
var shim = USE('./shim');
|
|
var S = USE('./settings');
|
|
// Derive shared secret from other's pub and my epub/epriv
|
|
SEA.secret = SEA.secret || (async (key, pair, cb, opt) => { try {
|
|
opt = opt || {};
|
|
if(!pair || !pair.epriv || !pair.epub){
|
|
pair = await SEA.I(null, {what: key, how: 'secret', why: opt.why});
|
|
}
|
|
var pub = key.epub || key;
|
|
var epub = pair.epub;
|
|
var epriv = pair.epriv;
|
|
var ecdhSubtle = shim.ossl || shim.subtle;
|
|
var pubKeyData = keysToEcdhJwk(pub);
|
|
var props = Object.assign({ public: await ecdhSubtle.importKey(...pubKeyData, true, []) },{name: 'ECDH', namedCurve: 'P-256'}); // Thanks to @sirpy !
|
|
var privKeyData = keysToEcdhJwk(epub, epriv);
|
|
var derived = await ecdhSubtle.importKey(...privKeyData, false, ['deriveBits']).then(async (privKey) => {
|
|
// privateKey scope doesn't leak out from here!
|
|
var derivedBits = await ecdhSubtle.deriveBits(props, privKey, 256);
|
|
var rawBits = new Uint8Array(derivedBits);
|
|
var derivedKey = await ecdhSubtle.importKey('raw', rawBits,{ name: 'AES-GCM', length: 256 }, true, [ 'encrypt', 'decrypt' ]);
|
|
return ecdhSubtle.exportKey('jwk', derivedKey).then(({ k }) => k);
|
|
})
|
|
var r = derived;
|
|
if(cb){ try{ cb(r) }catch(e){console.log(e)} }
|
|
return r;
|
|
} catch(e) {
|
|
console.log(e);
|
|
SEA.err = e;
|
|
if(SEA.throw){ throw e }
|
|
if(cb){ cb() }
|
|
return;
|
|
}});
|
|
|
|
// can this be replaced with settings.jwk?
|
|
var keysToEcdhJwk = (pub, d) => { // d === priv
|
|
//var [ x, y ] = Buffer.from(pub, 'base64').toString('utf8').split(':') // old
|
|
var [ x, y ] = pub.split('.') // new
|
|
var jwk = d ? { d: d } : {}
|
|
return [ // Use with spread returned value...
|
|
'jwk',
|
|
Object.assign(
|
|
jwk,
|
|
{ x: x, y: y, kty: 'EC', crv: 'P-256', ext: true }
|
|
), // ??? refactor
|
|
{name: 'ECDH', namedCurve: 'P-256'}
|
|
]
|
|
}
|
|
|
|
module.exports = SEA.secret;
|
|
})(USE, './secret');
|
|
|
|
;USE(function(module){
|
|
var shim = USE('./shim');
|
|
// Practical examples about usage found in tests.
|
|
var SEA = USE('./root');
|
|
SEA.work = USE('./work');
|
|
SEA.sign = USE('./sign');
|
|
SEA.verify = USE('./verify');
|
|
SEA.encrypt = USE('./encrypt');
|
|
SEA.decrypt = USE('./decrypt');
|
|
//SEA.opt.aeskey = USE('./aeskey'); // not official! // this causes problems in latest WebCrypto.
|
|
|
|
SEA.random = SEA.random || shim.random;
|
|
|
|
// This is Buffer used in SEA and usable from Gun/SEA application also.
|
|
// For documentation see https://nodejs.org/api/buffer.html
|
|
SEA.Buffer = SEA.Buffer || USE('./buffer');
|
|
|
|
// These SEA functions support now ony Promises or
|
|
// async/await (compatible) code, use those like Promises.
|
|
//
|
|
// Creates a wrapper library around Web Crypto API
|
|
// for various AES, ECDSA, PBKDF2 functions we called above.
|
|
// Calculate public key KeyID aka PGPv4 (result: 8 bytes as hex string)
|
|
SEA.keyid = SEA.keyid || (async (pub) => {
|
|
try {
|
|
// base64('base64(x):base64(y)') => Buffer(xy)
|
|
const pb = Buffer.concat(
|
|
pub.replace(/-/g, '+').replace(/_/g, '/').split('.')
|
|
.map((t) => Buffer.from(t, 'base64'))
|
|
)
|
|
// id is PGPv4 compliant raw key
|
|
const id = Buffer.concat([
|
|
Buffer.from([0x99, pb.length / 0x100, pb.length % 0x100]), pb
|
|
])
|
|
const sha1 = await sha1hash(id)
|
|
const hash = Buffer.from(sha1, 'binary')
|
|
return hash.toString('hex', hash.length - 8) // 16-bit ID as hex
|
|
} catch (e) {
|
|
console.log(e)
|
|
throw e
|
|
}
|
|
});
|
|
// all done!
|
|
// Obviously it is missing MANY necessary features. This is only an alpha release.
|
|
// Please experiment with it, audit what I've done so far, and complain about what needs to be added.
|
|
// SEA should be a full suite that is easy and seamless to use.
|
|
// Again, scroll naer the top, where I provide an EXAMPLE of how to create a user and sign in.
|
|
// Once logged in, the rest of the code you just read handled automatically signing/validating data.
|
|
// But all other behavior needs to be equally easy, like opinionated ways of
|
|
// Adding friends (trusted public keys), sending private messages, etc.
|
|
// Cheers! Tell me what you think.
|
|
((SEA.window||{}).GUN||{}).SEA = SEA;
|
|
|
|
module.exports = SEA
|
|
// -------------- END SEA MODULES --------------------
|
|
// -- BEGIN SEA+GUN MODULES: BUNDLED BY DEFAULT UNTIL OTHERS USE SEA ON OWN -------
|
|
})(USE, './sea');
|
|
|
|
;USE(function(module){
|
|
var SEA = USE('./sea'), Gun, u;
|
|
if(SEA.window){
|
|
Gun = SEA.window.GUN || {chain:{}};
|
|
} else {
|
|
Gun = USE((typeof MODULE == "undefined"?'.':'')+'./gun', 1);
|
|
}
|
|
SEA.GUN = Gun;
|
|
|
|
function User(root){
|
|
this._ = {$: this};
|
|
}
|
|
User.prototype = (function(){ function F(){}; F.prototype = Gun.chain; return new F() }()) // Object.create polyfill
|
|
User.prototype.constructor = User;
|
|
|
|
// let's extend the gun chain with a `user` function.
|
|
// only one user can be logged in at a time, per gun instance.
|
|
Gun.chain.user = function(pub){
|
|
var gun = this, root = gun.back(-1), user;
|
|
if(pub){ return root.get('~'+pub) }
|
|
if(user = root.back('user')){ return user }
|
|
var root = (root._), at = root, uuid = at.opt.uuid || lex;
|
|
(at = (user = at.user = gun.chain(new User))._).opt = {};
|
|
at.opt.uuid = function(cb){
|
|
var id = uuid(), pub = root.user;
|
|
if(!pub || !(pub = pub.is) || !(pub = pub.pub)){ return id }
|
|
id = id + '~' + pub + '/';
|
|
if(cb && cb.call){ cb(null, id) }
|
|
return id;
|
|
}
|
|
return user;
|
|
}
|
|
function lex(){ return Gun.state().toString(36).replace('.','') }
|
|
Gun.User = User;
|
|
User.GUN = Gun;
|
|
User.SEA = Gun.SEA = SEA;
|
|
module.exports = User;
|
|
})(USE, './user');
|
|
|
|
;USE(function(module){
|
|
var u, Gun = (''+u != typeof window)? (window.Gun||{chain:{}}) : require('../gun');
|
|
Gun.chain.then = function(cb, opt){
|
|
var gun = this, p = (new Promise(function(res, rej){
|
|
gun.once(res, opt);
|
|
}));
|
|
return cb? p.then(cb) : p;
|
|
}
|
|
})(USE, './then');
|
|
|
|
;USE(function(module){
|
|
var User = USE('./user'), SEA = User.SEA, Gun = User.GUN, noop = function(){};
|
|
|
|
// Well first we have to actually create a user. That is what this function does.
|
|
User.prototype.create = function(alias, pass, cb, opt){
|
|
var gun = this, cat = (gun._), root = gun.back(-1);
|
|
cb = cb || noop;
|
|
if(cat.ing){
|
|
cb({err: Gun.log("User is already being created or authenticated!"), wait: true});
|
|
return gun;
|
|
}
|
|
cat.ing = true;
|
|
opt = opt || {};
|
|
var act = {}, u;
|
|
act.a = function(pubs){
|
|
act.pubs = pubs;
|
|
if(pubs && !opt.already){
|
|
// If we can enforce that a user name is already taken, it might be nice to try, but this is not guaranteed.
|
|
var ack = {err: Gun.log('User already created!')};
|
|
cat.ing = false;
|
|
cb(ack);
|
|
gun.leave();
|
|
return;
|
|
}
|
|
act.salt = String.random(64); // pseudo-randomly create a salt, then use PBKDF2 function to extend the password with it.
|
|
SEA.work(pass, act.salt, act.b); // this will take some short amount of time to produce a proof, which slows brute force attacks.
|
|
}
|
|
act.b = function(proof){
|
|
act.proof = proof;
|
|
SEA.pair(act.c); // now we have generated a brand new ECDSA key pair for the user account.
|
|
}
|
|
act.c = function(pair){ var tmp;
|
|
act.pair = pair || {};
|
|
if(tmp = cat.root.user){
|
|
tmp._.sea = pair;
|
|
tmp.is = {pub: pair.pub, epub: pair.epub, alias: alias};
|
|
}
|
|
// the user's public key doesn't need to be signed. But everything else needs to be signed with it! // we have now automated it! clean up these extra steps now!
|
|
act.data = {pub: pair.pub};
|
|
act.d();
|
|
}
|
|
act.d = function(){
|
|
act.data.alias = alias;
|
|
act.e();
|
|
}
|
|
act.e = function(){
|
|
act.data.epub = act.pair.epub;
|
|
SEA.encrypt({priv: act.pair.priv, epriv: act.pair.epriv}, act.proof, act.f, {raw:1}); // to keep the private key safe, we AES encrypt it with the proof of work!
|
|
}
|
|
act.f = function(auth){
|
|
act.data.auth = JSON.stringify({ek: auth, s: act.salt});
|
|
act.g(act.data.auth);
|
|
}
|
|
act.g = function(auth){ var tmp;
|
|
act.data.auth = act.data.auth || auth;
|
|
root.get(tmp = '~'+act.pair.pub).put(act.data).on(act.h); // awesome, now we can actually save the user with their public key as their ID.
|
|
var link = {}; link[tmp] = {'#': tmp}; root.get('~@'+alias).put(link).get(tmp).on(act.i); // next up, we want to associate the alias with the public key. So we add it to the alias list.
|
|
}
|
|
act.h = function(data, key, msg, eve){
|
|
eve.off(); act.h.ok = 1; act.i();
|
|
}
|
|
act.i = function(data, key, msg, eve){
|
|
if(eve){ act.i.ok = 1; eve.off() }
|
|
if(!act.h.ok || !act.i.ok){ return }
|
|
cat.ing = false;
|
|
cb({ok: 0, pub: act.pair.pub}); // callback that the user has been created. (Note: ok = 0 because we didn't wait for disk to ack)
|
|
if(noop === cb){ gun.auth(alias, pass) } // if no callback is passed, auto-login after signing up.
|
|
}
|
|
root.get('~@'+alias).once(act.a);
|
|
return gun;
|
|
}
|
|
User.prototype.leave = function(opt, cb){
|
|
var gun = this, user = (gun.back(-1)._).user;
|
|
if(user){
|
|
delete user.is;
|
|
delete user._.is;
|
|
delete user._.sea;
|
|
}
|
|
if(SEA.window){
|
|
try{var sS = {};
|
|
sS = window.sessionStorage;
|
|
delete sS.recall;
|
|
delete sS.pair;
|
|
}catch(e){};
|
|
}
|
|
return gun;
|
|
}
|
|
})(USE, './create');
|
|
|
|
;USE(function(module){
|
|
var User = USE('./user'), SEA = User.SEA, Gun = User.GUN, noop = function(){};
|
|
// now that we have created a user, we want to authenticate them!
|
|
User.prototype.auth = function(){ // TODO: this PR with arguments need to be cleaned up / refactored.
|
|
const alias = typeof arguments[0] === 'string' ? arguments[0] : null
|
|
const pass = alias && typeof arguments[1] === 'string' ? arguments[1] : null
|
|
const pair = typeof arguments[0] === 'object' && (arguments[0].pub || arguments[0].epub) ? arguments[0] : typeof arguments[1] === 'object' && (arguments[1].pub || arguments[1].epub) ? arguments[1] : null
|
|
const cb = Array.prototype.slice.call(arguments).filter(arg => typeof arg === 'function')[0] || function(){} // cb now can stand anywhere, after alias/pass or pair
|
|
const opt = arguments && arguments.length > 1 && typeof arguments[arguments.length-1] === 'object' ? arguments[arguments.length-1] : {} // opt is always the last parameter which typeof === 'object' and stands after cb
|
|
|
|
var gun = this, cat = (gun._), root = gun.back(-1);
|
|
|
|
if(cat.ing){
|
|
cb({err: Gun.log("User is already being created or authenticated!"), wait: true});
|
|
return gun;
|
|
}
|
|
cat.ing = true;
|
|
|
|
var act = {}, u;
|
|
act.a = function(data){
|
|
if(!data){ return act.b() }
|
|
if(!data.pub){
|
|
var tmp = []; Object.keys(data).forEach(function(k){ if('_'==k){ return } tmp.push(data[k]) })
|
|
return act.b(tmp);
|
|
}
|
|
if(act.name){ return act.f(data) }
|
|
act.c((act.data = data).auth);
|
|
}
|
|
act.b = function(list){
|
|
var get = (act.list = (act.list||[]).concat(list||[])).shift();
|
|
if(u === get){
|
|
if(act.name){ return act.err('Your user account is not published for dApps to access, please consider syncing it online, or allowing local access by adding your device as a peer.') }
|
|
return act.err('Wrong user or password.')
|
|
}
|
|
root.get(get).once(act.a);
|
|
}
|
|
act.c = function(auth){
|
|
if(u === auth){ return act.b() }
|
|
if('string' == typeof auth){ return act.c(obj_ify(auth)) } // in case of legacy
|
|
SEA.work(pass, (act.auth = auth).s, act.d, act.enc); // the proof of work is evidence that we've spent some time/effort trying to log in, this slows brute force.
|
|
}
|
|
act.d = function(proof){
|
|
SEA.decrypt(act.auth.ek, proof, act.e, act.enc);
|
|
}
|
|
act.e = function(half){
|
|
if(u === half){
|
|
if(!act.enc){ // try old format
|
|
act.enc = {encode: 'utf8'};
|
|
return act.c(act.auth);
|
|
} act.enc = null; // end backwards
|
|
return act.b();
|
|
}
|
|
act.half = half;
|
|
act.f(act.data);
|
|
}
|
|
act.f = function(pair){
|
|
var half = act.half || {}, data = act.data || {};
|
|
act.g(act.lol = {pub: pair.pub || data.pub, epub: pair.epub || data.epub, priv: pair.priv || half.priv, epriv: pair.epriv || half.epriv});
|
|
}
|
|
act.g = function(pair){
|
|
if(!pair || !pair.pub || !pair.epub){ return act.b() }
|
|
act.pair = pair;
|
|
var user = (root._).user, at = (user._);
|
|
var tmp = at.tag;
|
|
var upt = at.opt;
|
|
at = user._ = root.get('~'+pair.pub)._;
|
|
at.opt = upt;
|
|
// add our credentials in-memory only to our root user instance
|
|
user.is = {pub: pair.pub, epub: pair.epub, alias: alias};
|
|
at.sea = act.pair;
|
|
cat.ing = false;
|
|
try{if(pass && u == (obj_ify(cat.root.graph['~'+pair.pub].auth)||'')[':']){ opt.shuffle = opt.change = pass; } }catch(e){} // migrate UTF8 & Shuffle!
|
|
opt.change? act.z() : cb(at);
|
|
if(SEA.window && ((gun.back('user')._).opt||opt).remember){
|
|
// TODO: this needs to be modular.
|
|
try{var sS = {};
|
|
sS = window.sessionStorage;
|
|
sS.recall = true;
|
|
sS.pair = JSON.stringify(pair); // auth using pair is more reliable than alias/pass
|
|
}catch(e){}
|
|
}
|
|
try{
|
|
(root._).on('auth', at) // TODO: Deprecate this, emit on user instead! Update docs when you do.
|
|
//at.on('auth', at) // Arrgh, this doesn't work without event "merge" code, but "merge" code causes stack overflow and crashes after logging in & trying to write data.
|
|
}catch(e){
|
|
Gun.log("Your 'auth' callback crashed with:", e);
|
|
}
|
|
}
|
|
act.z = function(){
|
|
// password update so encrypt private key using new pwd + salt
|
|
act.salt = String.random(64); // pseudo-random
|
|
SEA.work(opt.change, act.salt, act.y);
|
|
}
|
|
act.y = function(proof){
|
|
SEA.encrypt({priv: act.pair.priv, epriv: act.pair.epriv}, proof, act.x, {raw:1});
|
|
}
|
|
act.x = function(auth){
|
|
act.w(JSON.stringify({ek: auth, s: act.salt}));
|
|
}
|
|
act.w = function(auth){
|
|
if(opt.shuffle){ // delete in future!
|
|
console.log('migrate core account from UTF8 & shuffle');
|
|
var tmp = {}; Object.keys(act.data).forEach(function(k){ tmp[k] = act.data[k] });
|
|
delete tmp._;
|
|
tmp.auth = auth;
|
|
root.get('~'+act.pair.pub).put(tmp);
|
|
} // end delete
|
|
root.get('~'+act.pair.pub).get('auth').put(auth, cb);
|
|
}
|
|
act.err = function(e){
|
|
var ack = {err: Gun.log(e || 'User cannot be found!')};
|
|
cat.ing = false;
|
|
cb(ack);
|
|
}
|
|
act.plugin = function(name){
|
|
if(!(act.name = name)){ return act.err() }
|
|
var tmp = [name];
|
|
if('~' !== name[0]){
|
|
tmp[1] = '~'+name;
|
|
tmp[2] = '~@'+name;
|
|
}
|
|
act.b(tmp);
|
|
}
|
|
if(pair){
|
|
act.g(pair);
|
|
} else
|
|
if(alias){
|
|
root.get('~@'+alias).once(act.a);
|
|
} else
|
|
if(!alias && !pass){
|
|
SEA.name(act.plugin);
|
|
}
|
|
return gun;
|
|
}
|
|
function obj_ify(o){
|
|
if('string' != typeof o){ return o }
|
|
try{o = JSON.parse(o);
|
|
}catch(e){o={}};
|
|
return o;
|
|
}
|
|
})(USE, './auth');
|
|
|
|
;USE(function(module){
|
|
var User = USE('./user'), SEA = User.SEA, Gun = User.GUN;
|
|
User.prototype.recall = function(opt, cb){
|
|
var gun = this, root = gun.back(-1);
|
|
opt = opt || {};
|
|
if(opt && opt.sessionStorage){
|
|
if(SEA.window){
|
|
try{var sS = {};
|
|
sS = window.sessionStorage;
|
|
if(sS){
|
|
(root._).opt.remember = true;
|
|
((gun.back('user')._).opt||opt).remember = true;
|
|
if(sS.recall || sS.pair){
|
|
root.user().auth(JSON.parse(sS.pair), cb); // pair is more reliable than alias/pass
|
|
}
|
|
}
|
|
}catch(e){}
|
|
}
|
|
return gun;
|
|
}
|
|
/*
|
|
TODO: copy mhelander's expiry code back in.
|
|
Although, we should check with community,
|
|
should expiry be core or a plugin?
|
|
*/
|
|
return gun;
|
|
}
|
|
})(USE, './recall');
|
|
|
|
;USE(function(module){
|
|
var User = USE('./user'), SEA = User.SEA, Gun = User.GUN, noop = function(){};
|
|
User.prototype.pair = function(){
|
|
console.log("user.pair() IS DEPRECATED AND WILL BE DELETED!!!");
|
|
var user = this;
|
|
if(!user.is){ return false }
|
|
return user._.sea;
|
|
}
|
|
// If authenticated user wants to delete his/her account, let's support it!
|
|
User.prototype.delete = async function(alias, pass, cb){
|
|
console.log("user.delete() IS DEPRECATED AND WILL BE MOVED TO A MODULE!!!");
|
|
var gun = this, root = gun.back(-1), user = gun.back('user');
|
|
try {
|
|
user.auth(alias, pass, function(ack){
|
|
var pub = (user.is||{}).pub;
|
|
// Delete user data
|
|
user.map().once(function(){ this.put(null) });
|
|
// Wipe user data from memory
|
|
user.leave();
|
|
(cb || noop)({ok: 0});
|
|
});
|
|
} catch (e) {
|
|
Gun.log('User.delete failed! Error:', e);
|
|
}
|
|
return gun;
|
|
}
|
|
User.prototype.alive = async function(){
|
|
console.log("user.alive() IS DEPRECATED!!!");
|
|
const gunRoot = this.back(-1)
|
|
try {
|
|
// All is good. Should we do something more with actual recalled data?
|
|
await authRecall(gunRoot)
|
|
return gunRoot._.user._
|
|
} catch (e) {
|
|
const err = 'No session!'
|
|
Gun.log(err)
|
|
throw { err }
|
|
}
|
|
}
|
|
User.prototype.trust = async function(user){
|
|
console.log("`.trust` API MAY BE DELETED OR CHANGED OR RENAMED, DO NOT USE!");
|
|
// TODO: BUG!!! SEA `node` read listener needs to be async, which means core needs to be async too.
|
|
//gun.get('alice').get('age').trust(bob);
|
|
if (Gun.is(user)) {
|
|
user.get('pub').get((ctx, ev) => {
|
|
console.log(ctx, ev)
|
|
})
|
|
}
|
|
user.get('trust').get(path).put(theirPubkey);
|
|
|
|
// do a lookup on this gun chain directly (that gets bob's copy of the data)
|
|
// do a lookup on the metadata trust table for this path (that gets all the pubkeys allowed to write on this path)
|
|
// do a lookup on each of those pubKeys ON the path (to get the collab data "layers")
|
|
// THEN you perform Jachen's mix operation
|
|
// and return the result of that to...
|
|
}
|
|
User.prototype.grant = function(to, cb){
|
|
console.log("`.grant` API MAY BE DELETED OR CHANGED OR RENAMED, DO NOT USE!");
|
|
var gun = this, user = gun.back(-1).user(), pair = user._.sea, path = '';
|
|
gun.back(function(at){ if(at.is){ return } path += (at.get||'') });
|
|
(async function(){
|
|
var enc, sec = await user.get('grant').get(pair.pub).get(path).then();
|
|
sec = await SEA.decrypt(sec, pair);
|
|
if(!sec){
|
|
sec = SEA.random(16).toString();
|
|
enc = await SEA.encrypt(sec, pair);
|
|
user.get('grant').get(pair.pub).get(path).put(enc);
|
|
}
|
|
var pub = to.get('pub').then();
|
|
var epub = to.get('epub').then();
|
|
pub = await pub; epub = await epub;
|
|
var dh = await SEA.secret(epub, pair);
|
|
enc = await SEA.encrypt(sec, dh);
|
|
user.get('grant').get(pub).get(path).put(enc, cb);
|
|
}());
|
|
return gun;
|
|
}
|
|
User.prototype.secret = function(data, cb){
|
|
console.log("`.secret` API MAY BE DELETED OR CHANGED OR RENAMED, DO NOT USE!");
|
|
var gun = this, user = gun.back(-1).user(), pair = user.pair(), path = '';
|
|
gun.back(function(at){ if(at.is){ return } path += (at.get||'') });
|
|
(async function(){
|
|
var enc, sec = await user.get('trust').get(pair.pub).get(path).then();
|
|
sec = await SEA.decrypt(sec, pair);
|
|
if(!sec){
|
|
sec = SEA.random(16).toString();
|
|
enc = await SEA.encrypt(sec, pair);
|
|
user.get('trust').get(pair.pub).get(path).put(enc);
|
|
}
|
|
enc = await SEA.encrypt(data, sec);
|
|
gun.put(enc, cb);
|
|
}());
|
|
return gun;
|
|
}
|
|
|
|
/**
|
|
* returns the decrypted value, encrypted by secret
|
|
* @returns {Promise<any>}
|
|
// Mark needs to review 1st before officially supported
|
|
User.prototype.decrypt = function(cb) {
|
|
let gun = this,
|
|
path = ''
|
|
gun.back(function(at) {
|
|
if (at.is) {
|
|
return
|
|
}
|
|
path += at.get || ''
|
|
})
|
|
return gun
|
|
.then(async data => {
|
|
if (data == null) {
|
|
return
|
|
}
|
|
const user = gun.back(-1).user()
|
|
const pair = user.pair()
|
|
let sec = await user
|
|
.get('trust')
|
|
.get(pair.pub)
|
|
.get(path)
|
|
sec = await SEA.decrypt(sec, pair)
|
|
if (!sec) {
|
|
return data
|
|
}
|
|
let decrypted = await SEA.decrypt(data, sec)
|
|
return decrypted
|
|
})
|
|
.then(res => {
|
|
cb && cb(res)
|
|
return res
|
|
})
|
|
}
|
|
*/
|
|
module.exports = User
|
|
})(USE, './share');
|
|
|
|
;USE(function(module){
|
|
var SEA = USE('./sea'), noop = function(){}, u;
|
|
var Gun = (''+u != typeof window)? (window.Gun||{on:noop}) : require('../gun');
|
|
// After we have a GUN extension to make user registration/login easy, we then need to handle everything else.
|
|
|
|
// We do this with a GUN adapter, we first listen to when a gun instance is created (and when its options change)
|
|
Gun.on('opt', function(at){
|
|
if(!at.sea){ // only add SEA once per instance, on the "at" context.
|
|
at.sea = {own: {}};
|
|
at.on('put', check, at); // SEA now runs its firewall on HAM diffs, not all i/o.
|
|
}
|
|
this.to.next(at); // make sure to call the "next" middleware adapter.
|
|
});
|
|
|
|
// Alright, this next adapter gets run at the per node level in the graph database.
|
|
// correction: 2020 it gets run on each key/value pair in a node upon a HAM diff.
|
|
// This will let us verify that every property on a node has a value signed by a public key we trust.
|
|
// If the signature does not match, the data is just `undefined` so it doesn't get passed on.
|
|
// If it does match, then we transform the in-memory "view" of the data into its plain value (without the signature).
|
|
// Now NOTE! Some data is "system" data, not user data. Example: List of public keys, aliases, etc.
|
|
// This data is self-enforced (the value can only match its ID), but that is handled in the `security` function.
|
|
// From the self-enforced data, we can see all the edges in the graph that belong to a public key.
|
|
// Example: ~ASDF is the ID of a node with ASDF as its public key, signed alias and salt, and
|
|
// its encrypted private key, but it might also have other signed values on it like `profile = <ID>` edge.
|
|
// Using that directed edge's ID, we can then track (in memory) which IDs belong to which keys.
|
|
// Here is a problem: Multiple public keys can "claim" any node's ID, so this is dangerous!
|
|
// This means we should ONLY trust our "friends" (our key ring) public keys, not any ones.
|
|
// I have not yet added that to SEA yet in this alpha release. That is coming soon, but beware in the meanwhile!
|
|
|
|
function check(msg){ // REVISE / IMPROVE, NO NEED TO PASS MSG/EVE EACH SUB?
|
|
var eve = this, at = eve.as, put = msg.put, soul = put['#'], key = put['.'], val = put[':'], state = put['>'], id = msg['#'], tmp;
|
|
if(!soul || !key){ return }
|
|
//console.log('check', put, msg);
|
|
if((msg._||'').faith && (at.opt||'').faith && 'function' == typeof msg._){
|
|
SEA.opt.pack(put, function(raw){
|
|
SEA.verify(raw, false, function(data){ // this is synchronous if false
|
|
put['='] = SEA.opt.unpack(data);
|
|
eve.to.next(msg);
|
|
})})
|
|
return
|
|
}
|
|
var no = function(why){ at.on('in', {'@': id, err: why}) };
|
|
//var no = function(why){ msg.ack(why) };
|
|
(msg._||'').DBG && ((msg._||'').DBG.c = +new Date);
|
|
if(0 <= soul.indexOf('<?')){ // special case for "do not sync data X old"
|
|
// 'a~pub.key/b<?9'
|
|
tmp = parseFloat(soul.split('<?')[1]||'');
|
|
if(tmp && (state < (Gun.state() - (tmp * 1000)))){ // sec to ms
|
|
(tmp = msg._) && (tmp.stun) && (tmp.stun--); // THIS IS BAD CODE! It assumes GUN internals do something that will probably change in future, but hacking in now.
|
|
return; // omit!
|
|
}
|
|
}
|
|
if('~@' === soul){ // special case for shared system data, the list of aliases.
|
|
check.alias(eve, msg, val, key, soul, at, no); return;
|
|
}
|
|
if('~@' === soul.slice(0,2)){ // special case for shared system data, the list of public keys for an alias.
|
|
check.pubs(eve, msg, val, key, soul, at, no); return;
|
|
}
|
|
//if('~' === soul.slice(0,1) && 2 === (tmp = soul.slice(1)).split('.').length){ // special case, account data for a public key.
|
|
if(tmp = SEA.opt.pub(soul)){ // special case, account data for a public key.
|
|
check.pub(eve, msg, val, key, soul, at, no, at.user||'', tmp); return;
|
|
}
|
|
if(0 <= soul.indexOf('#')){ // special case for content addressing immutable hashed data.
|
|
check.hash(eve, msg, val, key, soul, at, no); return;
|
|
}
|
|
check.any(eve, msg, val, key, soul, at, no, at.user||''); return;
|
|
eve.to.next(msg); // not handled
|
|
}
|
|
check.hash = function(eve, msg, val, key, soul, at, no){
|
|
SEA.work(val, null, function(data){
|
|
if(data && data === key.split('#').slice(-1)[0]){ return eve.to.next(msg) }
|
|
no("Data hash not same as hash!");
|
|
}, {name: 'SHA-256'});
|
|
}
|
|
check.alias = function(eve, msg, val, key, soul, at, no){ // Example: {_:#~@, ~@alice: {#~@alice}}
|
|
if(!val){ return no("Data must exist!") } // data MUST exist
|
|
if('~@'+key === link_is(val)){ return eve.to.next(msg) } // in fact, it must be EXACTLY equal to itself
|
|
no("Alias not same!"); // if it isn't, reject.
|
|
};
|
|
check.pubs = function(eve, msg, val, key, soul, at, no){ // Example: {_:#~@alice, ~asdf: {#~asdf}}
|
|
if(!val){ return no("Alias must exist!") } // data MUST exist
|
|
if(key === link_is(val)){ return eve.to.next(msg) } // and the ID must be EXACTLY equal to its property
|
|
no("Alias not same!"); // that way nobody can tamper with the list of public keys.
|
|
};
|
|
check.pub = function(eve, msg, val, key, soul, at, no, user, pub){ var tmp; // Example: {_:#~asdf, hello:'world'~fdsa}}
|
|
if('pub' === key && '~'+pub === soul){
|
|
if(val === pub){ return eve.to.next(msg) } // the account MUST match `pub` property that equals the ID of the public key.
|
|
return no("Account not same!");
|
|
}
|
|
if((tmp = user.is) && pub === tmp.pub){// && (tmp = msg._.$) && (tmp = tmp._) && tmp !== tmp.root){
|
|
SEA.opt.pack(msg.put, function(raw){
|
|
SEA.sign(raw, (user._).sea, function(data){
|
|
if(u === data){ return no(SEA.err || 'Signature fail.') }
|
|
if(tmp = link_is(val)){ (at.sea.own[tmp] = at.sea.own[tmp] || {})[pub] = 1 }
|
|
//console.log("SYNCHRONOUS JSON!!! CHECK EVERYWHERE ELSE");
|
|
JSON.stringifyAsync({':': tmp = SEA.opt.unpack(data.m), '~': data.s}, function(err,s){
|
|
if(err){ return no(err || "Stringify error.") }
|
|
msg.put['='] = tmp;
|
|
msg.put[':'] = s;
|
|
eve.to.next(msg);
|
|
})
|
|
}, {raw: 1})});
|
|
return;
|
|
}
|
|
SEA.opt.pack(msg.put, function(raw){
|
|
SEA.verify(raw, pub, function(data){ var tmp;
|
|
data = SEA.opt.unpack(data);
|
|
if(u === data){ return no("Unverified data.") } // make sure the signature matches the account it claims to be on. // reject any updates that are signed with a mismatched account.
|
|
if((tmp = link_is(data)) && pub === SEA.opt.pub(tmp)){ (at.sea.own[tmp] = at.sea.own[tmp] || {})[pub] = 1 }
|
|
msg.put['='] = data;
|
|
eve.to.next(msg);
|
|
})});
|
|
};
|
|
check.any = function(eve, msg, val, key, soul, at, no, user){ var tmp, pub;
|
|
if(at.opt.secure){ return no("Soul missing public key at '" + key + "'.") }
|
|
// TODO: Ask community if should auto-sign non user-graph data.
|
|
at.on('secure', function(msg){ this.off();
|
|
if(!at.opt.secure){ return eve.to.next(msg) }
|
|
no("Data cannot be changed.");
|
|
}).on.on('secure', msg);
|
|
return;
|
|
}
|
|
|
|
var valid = Gun.valid, link_is = function(d,l){ return 'string' == typeof (l = valid(d)) && l }, state_ify = (Gun.state||'').ify;
|
|
|
|
var pubcut = /[^\w_-]/; // anything not alphanumeric or _ -
|
|
SEA.opt.pub = function(s){
|
|
if(!s){ return }
|
|
s = s.split('~');
|
|
if(!s || !(s = s[1])){ return }
|
|
s = s.split(pubcut).slice(0,2);
|
|
if(!s || 2 != s.length){ return }
|
|
if('@' === (s[0]||'')[0]){ return }
|
|
s = s.slice(0,2).join('.');
|
|
return s;
|
|
}
|
|
SEA.opt.pack = function(d,cb,k, n,s){ var tmp, f; // pack for verifying
|
|
if(SEA.opt.check(d)){ return cb(d) }
|
|
if(d && d['#'] && d['.'] && d['>']){ tmp = d[':']; f = 1 }
|
|
JSON.parseAsync(f? tmp : d, function(err, meta){
|
|
var sig = ((u !== (meta||'')[':']) && (meta||'')['~']); // or just ~ check?
|
|
if(!sig){ cb(d); return }
|
|
cb({m: {'#':s||d['#'],'.':k||d['.'],':':(meta||'')[':'],'>':d['>']||Gun.state.is(n, k)}, s: sig});
|
|
});
|
|
}
|
|
var O = SEA.opt;
|
|
SEA.opt.unpack = function(d, k, n){ var tmp;
|
|
if(u === d){ return }
|
|
if(d && (u !== (tmp = d[':']))){ return tmp }
|
|
k = k || O.fall_key; if(!n && O.fall_val){ n = {}; n[k] = O.fall_val }
|
|
if(!k || !n){ return }
|
|
if(d === n[k]){ return d }
|
|
if(!SEA.opt.check(n[k])){ return d }
|
|
var soul = (n && n._ && n._['#']) || O.fall_soul, s = Gun.state.is(n, k) || O.fall_state;
|
|
if(d && 4 === d.length && soul === d[0] && k === d[1] && fl(s) === fl(d[3])){
|
|
return d[2];
|
|
}
|
|
if(s < SEA.opt.shuffle_attack){
|
|
return d;
|
|
}
|
|
}
|
|
SEA.opt.shuffle_attack = 1546329600000; // Jan 1, 2019
|
|
var fl = Math.floor; // TODO: Still need to fix inconsistent state issue.
|
|
// TODO: Potential bug? If pub/priv key starts with `-`? IDK how possible.
|
|
|
|
})(USE, './index');
|
|
}()); |