openethereum/js/packages/api/util/encode.js
Jaco Greeff 49fdd23d58 Ui 2 move to packages/* (#6113)
* Move secureApi to shell

* Extract isTestnet test

* Use mobx + subscriptions for status

* Re-add status indicator

* Add lerna

* Move intial packages to js/packages

* Move 3rdparty/{email,sms}-verification to correct location

* Move package.json & README to library src

* Move tests for library packages

* Move views & dapps to packages

* Move i18n to root

* Move shell to actual src (main app)

* Remove ~ references

* Change ~ to root (explicit imports)

* Finalise convert of ~

* Move views into dapps as well

* Move dapps to packages/

* Fix references

* Update css

* Update test spec locations

* Update tests

* Case fix

* Skip flakey tests

* Update enzyme

* Skip previously ignored tests

* Allow empty api for hw

* Re-add theme for embed
2017-07-21 15:46:53 +02:00

70 lines
2.1 KiB
JavaScript

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import Abi from '@parity/abi';
import Func from '@parity/abi/spec/function';
import { abiDecode } from './decode';
import { cleanupValue } from './format';
import { sha3 } from './sha3';
export function encodeMethodCallAbi (methodAbi = {}, values = []) {
const func = new Func(methodAbi);
const tokens = Abi.encodeTokens(func.inputParamTypes(), values);
const call = func.encodeCall(tokens);
return `0x${call}`;
}
export function abiEncode (methodName, inputTypes, data) {
const result = encodeMethodCallAbi({
name: methodName || '',
type: 'function',
inputs: inputTypes.map((type) => {
return { type };
})
}, data);
return result;
}
export function abiUnencode (abi, data) {
const callsig = data.substr(2, 8);
const op = abi.find((field) => {
return field.type === 'function' &&
abiSignature(field.name, field.inputs.map((input) => input.type)).substr(2, 8) === callsig;
});
if (!op) {
console.warn(`Unknown function ID: ${callsig}`);
return null;
}
let argsByIndex = abiDecode(op.inputs.map((field) => field.type), '0x' + data.substr(10))
.map((value, index) => cleanupValue(value, op.inputs[index].type));
const argsByName = op.inputs.reduce((result, field, index) => {
result[field.name] = argsByIndex[index];
return result;
}, {});
return [op.name, argsByName, argsByIndex];
}
export function abiSignature (name, inputs) {
return sha3(`${name}(${inputs.join()})`);
}