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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 43x 43x 43x 83x 83x 1x 3x 3x 1x 2x 2x 2x 3x 3x 3x 1x 3x 3x 3x 2x 2x 2x 2x 41x 41x 41x 41x 41x 41x | /* * Copyright © 2019 Lisk Foundation * * See the LICENSE file at the top-level directory of this distribution * for licensing information. * * Unless otherwise agreed in a custom licensing agreement with the Lisk Foundation, * no part of this software, including this file, may be copied, modified, * propagated, or distributed except according to the terms contained in the * LICENSE file. * * Removal or modification of this copyright notice is prohibited. * */ import { hash, hexToBuffer, signData } from '@liskhq/lisk-cryptography'; import { validator } from '@liskhq/lisk-validator'; import { BaseTransaction, StateStore, StateStorePrepare, } from './base_transaction'; import { SIGNATURE_FEE } from './constants'; import { convertToAssetError, TransactionError } from './errors'; import { TransactionJSON } from './transaction_types'; import { getId } from './utils'; export interface SecondSignatureAsset { readonly publicKey: string; } export const secondSignatureAssetFormatSchema = { type: 'object', required: ['publicKey'], properties: { publicKey: { type: 'string', format: 'publicKey', }, }, }; export class SecondSignatureTransaction extends BaseTransaction { public readonly asset: SecondSignatureAsset; public static TYPE = 9; public static FEE = SIGNATURE_FEE.toString(); public constructor(rawTransaction: unknown) { super(rawTransaction); const tx = (typeof rawTransaction === 'object' && rawTransaction !== null ? rawTransaction : {}) as Partial<TransactionJSON>; // tslint:disable-next-line no-object-literal-type-assertion this.asset = (tx.asset || { signature: {} }) as SecondSignatureAsset; } protected assetToBytes(): Buffer { const { publicKey } = this.asset; return hexToBuffer(publicKey); } public async prepare(store: StateStorePrepare): Promise<void> { await store.account.cache([ { address: this.senderId, }, ]); } protected verifyAgainstTransactions( transactions: ReadonlyArray<TransactionJSON>, ): ReadonlyArray<TransactionError> { return transactions .filter( tx => tx.type === this.type && tx.senderPublicKey === this.senderPublicKey, ) .map( tx => new TransactionError( 'Register second signature only allowed once per account.', tx.id, '.asset.signature', ), ); } protected validateAsset(): ReadonlyArray<TransactionError> { const schemaErrors = validator.validate( secondSignatureAssetFormatSchema, this.asset, ); const errors = convertToAssetError( this.id, schemaErrors, ) as TransactionError[]; return errors; } protected async applyAsset( store: StateStore, ): Promise<ReadonlyArray<TransactionError>> { const errors: TransactionError[] = []; const sender = await store.account.get(this.senderId); // Check if secondPublicKey already exists on account if (sender.secondPublicKey) { errors.push( new TransactionError( 'Register second signature only allowed once per account.', this.id, '.secondPublicKey', ), ); } const updatedSender = { ...sender, secondPublicKey: this.asset.publicKey, secondSignature: 1, }; store.account.set(updatedSender.address, updatedSender); return errors; } protected async undoAsset( store: StateStore, ): Promise<ReadonlyArray<TransactionError>> { const sender = await store.account.get(this.senderId); const resetSender = { ...sender, // tslint:disable-next-line no-null-keyword - Exception for compatibility with Core 1.4 secondPublicKey: null, secondSignature: 0, }; store.account.set(resetSender.address, resetSender); return []; } public sign(passphrase: string): void { this._signature = undefined; this._signSignature = undefined; const networkIdentifierBytes = hexToBuffer(this._networkIdentifier); const transactionWithNetworkIdentifierBytes = Buffer.concat([ networkIdentifierBytes, this.getBytes(), ]); this._signature = signData( hash(transactionWithNetworkIdentifierBytes), passphrase, ); this._id = getId(this.getBytes()); } } |