102 lines
2.4 KiB
JavaScript
102 lines
2.4 KiB
JavaScript
|
// @flow
|
||
|
|
|
||
|
|
import {struct} from 'superstruct';
|
||
|
|
|
||
|
|
import * as Layout from './layout';
|
||
|
|
import * as shortvec from './util/shortvec-encoding';
|
||
|
|
import {PublicKey} from './publickey';
|
||
|
|
|
||
|
|
const VALIDATOR_INFO_KEY = new PublicKey(
|
||
|
|
'Va1idator1nfo111111111111111111111111111111',
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
type ConfigKey = {|
|
||
|
|
publicKey: PublicKey,
|
||
|
|
isSigner: boolean,
|
||
|
|
|};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Info used to identity validators.
|
||
|
|
*
|
||
|
|
* @typedef {Object} Info
|
||
|
|
* @property {string} name validator name
|
||
|
|
* @property {?string} website optional, validator website
|
||
|
|
* @property {?string} details optional, extra information the validator chose to share
|
||
|
|
* @property {?string} keybaseId optional, used to identify validators on keybase.io
|
||
|
|
*/
|
||
|
|
export type Info = {|
|
||
|
|
name: string,
|
||
|
|
website?: string,
|
||
|
|
details?: string,
|
||
|
|
keybaseId?: string,
|
||
|
|
|};
|
||
|
|
|
||
|
|
const InfoString = struct({
|
||
|
|
name: 'string',
|
||
|
|
website: 'string?',
|
||
|
|
details: 'string?',
|
||
|
|
keybaseId: 'string?',
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* ValidatorInfo class
|
||
|
|
*/
|
||
|
|
export class ValidatorInfo {
|
||
|
|
/**
|
||
|
|
* validator public key
|
||
|
|
*/
|
||
|
|
key: PublicKey;
|
||
|
|
/**
|
||
|
|
* validator information
|
||
|
|
*/
|
||
|
|
info: Info;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Construct a valid ValidatorInfo
|
||
|
|
*
|
||
|
|
* @param key validator public key
|
||
|
|
* @param info validator information
|
||
|
|
*/
|
||
|
|
constructor(key: PublicKey, info: Info) {
|
||
|
|
this.key = key;
|
||
|
|
this.info = info;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Deserialize ValidatorInfo from the config account data. Exactly two config
|
||
|
|
* keys are required in the data.
|
||
|
|
*
|
||
|
|
* @param buffer config account data
|
||
|
|
* @return null if info was not found
|
||
|
|
*/
|
||
|
|
static fromConfigData(buffer: Buffer): ?ValidatorInfo {
|
||
|
|
const PUBKEY_LENGTH = 32;
|
||
|
|
|
||
|
|
let byteArray = [...buffer];
|
||
|
|
const configKeyCount = shortvec.decodeLength(byteArray);
|
||
|
|
if (configKeyCount !== 2) return null;
|
||
|
|
|
||
|
|
const configKeys: Array<ConfigKey> = [];
|
||
|
|
for (let i = 0; i < 2; i++) {
|
||
|
|
const publicKey = new PublicKey(byteArray.slice(0, PUBKEY_LENGTH));
|
||
|
|
byteArray = byteArray.slice(PUBKEY_LENGTH);
|
||
|
|
const isSigner = byteArray.slice(0, 1)[0] === 1;
|
||
|
|
byteArray = byteArray.slice(1);
|
||
|
|
configKeys.push({publicKey, isSigner});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (configKeys[0].publicKey.equals(VALIDATOR_INFO_KEY)) {
|
||
|
|
if (configKeys[1].isSigner) {
|
||
|
|
const rawInfo = Layout.rustString().decode(Buffer.from(byteArray));
|
||
|
|
const info = InfoString(JSON.parse(rawInfo));
|
||
|
|
return new ValidatorInfo(configKeys[1].publicKey, info);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|