Merge pull request #4042 from MetaMask/tx-controller-rewrite-v3
docs and file organization for txControllerfeature/default_network_editable
kumavis
7 years ago
committed by
GitHub
commit
dcd04091cc
@ -0,0 +1,92 @@ |
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# Transaction Controller |
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Transaction Controller is an aggregate of sub-controllers and trackers |
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exposed to the MetaMask controller. |
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- txStateManager |
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responsible for the state of a transaction and |
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storing the transaction |
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- pendingTxTracker |
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watching blocks for transactions to be include |
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and emitting confirmed events |
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- txGasUtil |
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gas calculations and safety buffering |
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- nonceTracker |
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calculating nonces |
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## Flow diagram of processing a transaction |
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 |
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## txMeta's & txParams |
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A txMeta is the "meta" object it has all the random bits of info we need about a transaction on it. txParams are sacred every thing on txParams gets signed so it must |
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be a valid key and be hex prefixed except for the network number. Extra stuff must go on the txMeta! |
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Here is a txMeta too look at: |
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```js |
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txMeta = { |
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"id": 2828415030114568, // unique id for this txMeta used for look ups |
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"time": 1524094064821, // time of creation |
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"status": "confirmed", |
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"metamaskNetworkId": "1524091532133", //the network id for the transaction |
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"loadingDefaults": false, // used to tell the ui when we are done calculatyig gass defaults |
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"txParams": { // the txParams object |
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"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675", |
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"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675", |
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"value": "0x0", |
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"gasPrice": "0x3b9aca00", |
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"gas": "0x7b0c", |
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"nonce": "0x0" |
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}, |
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"history": [{ //debug |
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"id": 2828415030114568, |
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"time": 1524094064821, |
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"status": "unapproved", |
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"metamaskNetworkId": "1524091532133", |
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"loadingDefaults": true, |
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"txParams": { |
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"from": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675", |
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"to": "0x8acce2391c0d510a6c5e5d8f819a678f79b7e675", |
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"value": "0x0" |
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} |
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}, |
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[ |
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{ |
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"op": "add", |
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"path": "/txParams/gasPrice", |
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"value": "0x3b9aca00" |
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}, |
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...], // I've removed most of history for this |
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"gasPriceSpecified": false, //whether or not the user/dapp has specified gasPrice |
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"gasLimitSpecified": false, //whether or not the user/dapp has specified gas |
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"estimatedGas": "5208", |
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"origin": "MetaMask", //debug |
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"nonceDetails": { |
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"params": { |
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"highestLocallyConfirmed": 0, |
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"highestSuggested": 0, |
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"nextNetworkNonce": 0 |
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}, |
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"local": { |
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"name": "local", |
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"nonce": 0, |
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"details": { |
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"startPoint": 0, |
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"highest": 0 |
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} |
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}, |
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"network": { |
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"name": "network", |
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"nonce": 0, |
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"details": { |
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"baseCount": 0 |
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} |
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} |
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}, |
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"rawTx": "0xf86980843b9aca00827b0c948acce2391c0d510a6c5e5d8f819a678f79b7e67580808602c5b5de66eea05c01a320b96ac730cb210ca56d2cb71fa360e1fc2c21fa5cf333687d18eb323fa02ed05987a6e5fd0f2459fcff80710b76b83b296454ad9a37594a0ccb4643ea90", // used for rebroadcast |
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"hash": "0xa45ba834b97c15e6ff4ed09badd04ecd5ce884b455eb60192cdc73bcc583972a", |
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"submittedTime": 1524094077902 // time of the attempt to submit the raw tx to the network, used in the ui to show the retry button |
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} |
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``` |
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@ -0,0 +1,99 @@ |
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const { |
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addHexPrefix, |
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isValidAddress, |
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} = require('ethereumjs-util') |
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/** |
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@module |
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*/ |
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module.exports = { |
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normalizeTxParams, |
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validateTxParams, |
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validateFrom, |
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validateRecipient, |
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getFinalStates, |
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} |
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// functions that handle normalizing of that key in txParams
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const normalizers = { |
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from: from => addHexPrefix(from).toLowerCase(), |
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to: to => addHexPrefix(to).toLowerCase(), |
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nonce: nonce => addHexPrefix(nonce), |
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value: value => addHexPrefix(value), |
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data: data => addHexPrefix(data), |
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gas: gas => addHexPrefix(gas), |
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gasPrice: gasPrice => addHexPrefix(gasPrice), |
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} |
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/** |
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normalizes txParams |
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@param txParams {object} |
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@returns {object} normalized txParams |
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*/ |
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function normalizeTxParams (txParams) { |
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// apply only keys in the normalizers
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const normalizedTxParams = {} |
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for (const key in normalizers) { |
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if (txParams[key]) normalizedTxParams[key] = normalizers[key](txParams[key]) |
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} |
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return normalizedTxParams |
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} |
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/** |
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validates txParams |
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@param txParams {object} |
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*/ |
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function validateTxParams (txParams) { |
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validateFrom(txParams) |
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validateRecipient(txParams) |
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if ('value' in txParams) { |
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const value = txParams.value.toString() |
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if (value.includes('-')) { |
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throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`) |
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} |
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if (value.includes('.')) { |
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throw new Error(`Invalid transaction value of ${txParams.value} number must be in wei`) |
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} |
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} |
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} |
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/** |
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validates the from field in txParams |
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@param txParams {object} |
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*/ |
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function validateFrom (txParams) { |
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if (!(typeof txParams.from === 'string')) throw new Error(`Invalid from address ${txParams.from} not a string`) |
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if (!isValidAddress(txParams.from)) throw new Error('Invalid from address') |
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} |
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/** |
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validates the to field in txParams |
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@param txParams {object} |
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*/ |
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function validateRecipient (txParams) { |
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if (txParams.to === '0x' || txParams.to === null) { |
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if (txParams.data) { |
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delete txParams.to |
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} else { |
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throw new Error('Invalid recipient address') |
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} |
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} else if (txParams.to !== undefined && !isValidAddress(txParams.to)) { |
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throw new Error('Invalid recipient address') |
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} |
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return txParams |
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} |
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/** |
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@returns an {array} of states that can be considered final |
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*/ |
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function getFinalStates () { |
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return [ |
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'rejected', // the user has responded no!
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'confirmed', // the tx has been included in a block.
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'failed', // the tx failed for some reason, included on tx data.
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'dropped', // the tx nonce was already used
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] |
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} |
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After Width: | Height: | Size: 138 KiB |
@ -1,14 +1,77 @@ |
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const assert = require('assert') |
const assert = require('assert') |
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const TxGasUtils = require('../../app/scripts/lib/tx-gas-utils') |
const Transaction = require('ethereumjs-tx') |
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const { createTestProviderTools } = require('../stub/provider') |
const BN = require('bn.js') |
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describe('Tx Gas Util', function () { |
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let txGasUtil, provider, providerResultStub |
const { hexToBn, bnToHex } = require('../../app/scripts/lib/util') |
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beforeEach(function () { |
const TxUtils = require('../../app/scripts/controllers/transactions/tx-gas-utils') |
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providerResultStub = {} |
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provider = createTestProviderTools({ scaffold: providerResultStub }).provider |
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txGasUtil = new TxGasUtils({ |
describe('txUtils', function () { |
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provider, |
let txUtils |
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before(function () { |
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txUtils = new TxUtils(new Proxy({}, { |
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get: (obj, name) => { |
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return () => {} |
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}, |
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})) |
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}) |
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describe('chain Id', function () { |
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it('prepares a transaction with the provided chainId', function () { |
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const txParams = { |
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to: '0x70ad465e0bab6504002ad58c744ed89c7da38524', |
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from: '0x69ad465e0bab6504002ad58c744ed89c7da38525', |
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value: '0x0', |
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gas: '0x7b0c', |
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gasPrice: '0x199c82cc00', |
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data: '0x', |
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nonce: '0x3', |
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chainId: 42, |
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} |
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const ethTx = new Transaction(txParams) |
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assert.equal(ethTx.getChainId(), 42, 'chainId is set from tx params') |
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}) |
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}) |
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describe('addGasBuffer', function () { |
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it('multiplies by 1.5, when within block gas limit', function () { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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const inputHex = '0x16e360' |
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// dummy gas limit: 0x3d4c52 (4 mil)
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const blockGasLimitHex = '0x3d4c52' |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
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const inputBn = hexToBn(inputHex) |
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const outputBn = hexToBn(output) |
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const expectedBn = inputBn.muln(1.5) |
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assert(outputBn.eq(expectedBn), 'returns 1.5 the input value') |
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}) |
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it('uses original estimatedGas, when above block gas limit', function () { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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const inputHex = '0x16e360' |
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// dummy gas limit: 0x0f4240 (1 mil)
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const blockGasLimitHex = '0x0f4240' |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
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// const inputBn = hexToBn(inputHex)
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const outputBn = hexToBn(output) |
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const expectedBn = hexToBn(inputHex) |
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assert(outputBn.eq(expectedBn), 'returns the original estimatedGas value') |
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}) |
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it('buffers up to recommend gas limit recommended ceiling', function () { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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const inputHex = '0x16e360' |
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// dummy gas limit: 0x1e8480 (2 mil)
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const blockGasLimitHex = '0x1e8480' |
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const blockGasLimitBn = hexToBn(blockGasLimitHex) |
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const ceilGasLimitBn = blockGasLimitBn.muln(0.9) |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
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// const inputBn = hexToBn(inputHex)
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// const outputBn = hexToBn(output)
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const expectedHex = bnToHex(ceilGasLimitBn) |
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assert.equal(output, expectedHex, 'returns the gas limit recommended ceiling value') |
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}) |
}) |
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}) |
}) |
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}) |
}) |
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@ -1,77 +1,98 @@ |
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const assert = require('assert') |
const assert = require('assert') |
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const Transaction = require('ethereumjs-tx') |
const txUtils = require('../../app/scripts/controllers/transactions/lib/util') |
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const BN = require('bn.js') |
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const { hexToBn, bnToHex } = require('../../app/scripts/lib/util') |
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const TxUtils = require('../../app/scripts/lib/tx-gas-utils') |
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describe('txUtils', function () { |
describe('txUtils', function () { |
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let txUtils |
describe('#validateTxParams', function () { |
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it('does not throw for positive values', function () { |
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before(function () { |
var sample = { |
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txUtils = new TxUtils(new Proxy({}, { |
from: '0x1678a085c290ebd122dc42cba69373b5953b831d', |
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get: (obj, name) => { |
value: '0x01', |
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return () => {} |
} |
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}, |
txUtils.validateTxParams(sample) |
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})) |
}) |
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}) |
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describe('chain Id', function () { |
it('returns error for negative values', function () { |
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it('prepares a transaction with the provided chainId', function () { |
var sample = { |
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const txParams = { |
from: '0x1678a085c290ebd122dc42cba69373b5953b831d', |
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to: '0x70ad465e0bab6504002ad58c744ed89c7da38524', |
value: '-0x01', |
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from: '0x69ad465e0bab6504002ad58c744ed89c7da38525', |
} |
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value: '0x0', |
try { |
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gas: '0x7b0c', |
txUtils.validateTxParams(sample) |
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gasPrice: '0x199c82cc00', |
} catch (err) { |
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data: '0x', |
assert.ok(err, 'error') |
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nonce: '0x3', |
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chainId: 42, |
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} |
} |
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const ethTx = new Transaction(txParams) |
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assert.equal(ethTx.getChainId(), 42, 'chainId is set from tx params') |
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}) |
}) |
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}) |
}) |
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describe('addGasBuffer', function () { |
describe('#normalizeTxParams', () => { |
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it('multiplies by 1.5, when within block gas limit', function () { |
it('should normalize txParams', () => { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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let txParams = { |
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const inputHex = '0x16e360' |
chainId: '0x1', |
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// dummy gas limit: 0x3d4c52 (4 mil)
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from: 'a7df1beDBF813f57096dF77FCd515f0B3900e402', |
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const blockGasLimitHex = '0x3d4c52' |
to: null, |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
data: '68656c6c6f20776f726c64', |
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const inputBn = hexToBn(inputHex) |
random: 'hello world', |
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const outputBn = hexToBn(output) |
} |
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const expectedBn = inputBn.muln(1.5) |
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assert(outputBn.eq(expectedBn), 'returns 1.5 the input value') |
let normalizedTxParams = txUtils.normalizeTxParams(txParams) |
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assert(!normalizedTxParams.chainId, 'their should be no chainId') |
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assert(!normalizedTxParams.to, 'their should be no to address if null') |
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assert.equal(normalizedTxParams.from.slice(0, 2), '0x', 'from should be hexPrefixd') |
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assert.equal(normalizedTxParams.data.slice(0, 2), '0x', 'data should be hexPrefixd') |
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assert(!('random' in normalizedTxParams), 'their should be no random key in normalizedTxParams') |
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txParams.to = 'a7df1beDBF813f57096dF77FCd515f0B3900e402' |
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normalizedTxParams = txUtils.normalizeTxParams(txParams) |
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assert.equal(normalizedTxParams.to.slice(0, 2), '0x', 'to should be hexPrefixd') |
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}) |
}) |
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}) |
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it('uses original estimatedGas, when above block gas limit', function () { |
describe('#validateRecipient', () => { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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it('removes recipient for txParams with 0x when contract data is provided', function () { |
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const inputHex = '0x16e360' |
const zeroRecipientandDataTxParams = { |
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// dummy gas limit: 0x0f4240 (1 mil)
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from: '0x1678a085c290ebd122dc42cba69373b5953b831d', |
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const blockGasLimitHex = '0x0f4240' |
to: '0x', |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
data: 'bytecode', |
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// const inputBn = hexToBn(inputHex)
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} |
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const outputBn = hexToBn(output) |
const sanitizedTxParams = txUtils.validateRecipient(zeroRecipientandDataTxParams) |
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const expectedBn = hexToBn(inputHex) |
assert.deepEqual(sanitizedTxParams, { from: '0x1678a085c290ebd122dc42cba69373b5953b831d', data: 'bytecode' }, 'no recipient with 0x') |
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assert(outputBn.eq(expectedBn), 'returns the original estimatedGas value') |
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}) |
}) |
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it('buffers up to recommend gas limit recommended ceiling', function () { |
it('should error when recipient is 0x', function () { |
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// naive estimatedGas: 0x16e360 (1.5 mil)
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const zeroRecipientTxParams = { |
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const inputHex = '0x16e360' |
from: '0x1678a085c290ebd122dc42cba69373b5953b831d', |
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// dummy gas limit: 0x1e8480 (2 mil)
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to: '0x', |
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const blockGasLimitHex = '0x1e8480' |
} |
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const blockGasLimitBn = hexToBn(blockGasLimitHex) |
assert.throws(() => { txUtils.validateRecipient(zeroRecipientTxParams) }, Error, 'Invalid recipient address') |
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const ceilGasLimitBn = blockGasLimitBn.muln(0.9) |
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const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex) |
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// const inputBn = hexToBn(inputHex)
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// const outputBn = hexToBn(output)
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const expectedHex = bnToHex(ceilGasLimitBn) |
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assert.equal(output, expectedHex, 'returns the gas limit recommended ceiling value') |
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}) |
}) |
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}) |
}) |
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describe('#validateFrom', () => { |
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it('should error when from is not a hex string', function () { |
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// where from is undefined
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const txParams = {} |
||||||
|
assert.throws(() => { txUtils.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`) |
||||||
|
|
||||||
|
// where from is array
|
||||||
|
txParams.from = [] |
||||||
|
assert.throws(() => { txUtils.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`) |
||||||
|
|
||||||
|
// where from is a object
|
||||||
|
txParams.from = {} |
||||||
|
assert.throws(() => { txUtils.validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`) |
||||||
|
|
||||||
|
// where from is a invalid address
|
||||||
|
txParams.from = 'im going to fail' |
||||||
|
assert.throws(() => { txUtils.validateFrom(txParams) }, Error, `Invalid from address`) |
||||||
|
|
||||||
|
// should run
|
||||||
|
txParams.from ='0x1678a085c290ebd122dc42cba69373b5953b831d' |
||||||
|
txUtils.validateFrom(txParams) |
||||||
|
}) |
||||||
|
}) |
||||||
}) |
}) |
||||||
Loading…
Reference in new issue