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MsgBroadcaster.ts
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MsgBroadcaster.ts
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import {
TxGrpcApi,
hexToBuff,
PublicKey,
SIGN_AMINO,
hexToBase64,
BaseAccount,
ChainRestAuthApi,
CosmosTxV1Beta1Tx,
createTxRawEIP712,
createTransaction,
getEip712TypedData,
createWeb3Extension,
ChainRestTendermintApi,
createTransactionWithSigners,
createTxRawFromSigResponse,
IndexerGrpcTransactionApi,
getGasPriceBasedOnMessage,
recoverTypedSignaturePubKey,
CreateTransactionWithSignersArgs,
} from '@injectivelabs/sdk-ts'
import type { DirectSignResponse } from '@cosmjs/proto-signing'
import {
getStdFee,
BigNumberInBase,
DEFAULT_BLOCK_TIMEOUT_HEIGHT,
} from '@injectivelabs/utils'
import {
GeneralException,
TransactionException,
UnspecifiedErrorCode,
} from '@injectivelabs/exceptions'
import {
getNetworkInfo,
getNetworkEndpoints,
NetworkEndpoints,
} from '@injectivelabs/networks'
import { ChainId, EthereumChainId } from '@injectivelabs/ts-types'
import {
getEthereumSignerAddress,
getInjectiveSignerAddress,
} from '../utils/utils'
import {
MsgBroadcasterOptions,
MsgBroadcasterTxOptions,
MsgBroadcasterTxOptionsWithAddresses,
} from './types'
import { isCosmosWallet } from '../utils/wallets/cosmos'
import { Wallet, WalletDeviceType } from '../types'
import { createEip712StdSignDoc, KeplrWallet } from '../utils/wallets/keplr'
/**
* This class is used to broadcast transactions
* using the WalletStrategy as a handler
* for the sign/broadcast flow of the transactions
*
* Mainly used for building UI products
*/
export class MsgBroadcaster {
public options: MsgBroadcasterOptions
public endpoints: NetworkEndpoints
public chainId: ChainId
public ethereumChainId?: EthereumChainId
constructor(options: MsgBroadcasterOptions) {
const networkInfo = getNetworkInfo(options.network)
const endpoints =
options.networkEndpoints || getNetworkEndpoints(options.network)
this.options = options
this.chainId = networkInfo.chainId
this.ethereumChainId = networkInfo.ethereumChainId
this.endpoints = endpoints
}
/**
* Broadcasting the transaction using the client
* side approach for both cosmos and ethereum native wallets
*
* @param tx
* @returns {string} transaction hash
*/
async broadcast(tx: MsgBroadcasterTxOptions) {
const { options } = this
const { walletStrategy } = options
const txWithAddresses = {
...tx,
ethereumAddress: getEthereumSignerAddress(
tx.injectiveAddress || tx.address,
),
injectiveAddress: getInjectiveSignerAddress(
tx.injectiveAddress || tx.address,
),
} as MsgBroadcasterTxOptionsWithAddresses
return isCosmosWallet(walletStrategy.wallet)
? this.broadcastCosmos(txWithAddresses)
: this.broadcastWeb3(txWithAddresses)
}
/**
* Broadcasting the transaction using the client
* side approach for cosmos native wallets
* and feeDelegation support approach for ethereum native
* wallets (default one)
*
* @param tx
* @returns {string} transaction hash
* @deprecated
*/
async broadcastOld(tx: MsgBroadcasterTxOptions) {
const { options } = this
const { walletStrategy } = options
const txWithAddresses = {
...tx,
ethereumAddress: getEthereumSignerAddress(
tx.injectiveAddress || tx.address,
),
injectiveAddress: getInjectiveSignerAddress(
tx.injectiveAddress || tx.address,
),
} as MsgBroadcasterTxOptionsWithAddresses
return isCosmosWallet(walletStrategy.wallet)
? this.broadcastCosmos(txWithAddresses)
: this.broadcastWeb3WithFeeDelegation(txWithAddresses)
}
/**
* Broadcasting the transaction using the feeDelegation
* support approach for both cosmos and ethereum native wallets
*
* @param tx
* @returns {string} transaction hash
*/
async broadcastWithFeeDelegation(tx: MsgBroadcasterTxOptions) {
const { options } = this
const { walletStrategy } = options
const txWithAddresses = {
...tx,
ethereumAddress: getEthereumSignerAddress(
tx.injectiveAddress || tx.address,
),
injectiveAddress: getInjectiveSignerAddress(
tx.injectiveAddress || tx.address,
),
} as MsgBroadcasterTxOptionsWithAddresses
return isCosmosWallet(walletStrategy.wallet)
? this.broadcastCosmosWithFeeDelegation(txWithAddresses)
: this.broadcastWeb3WithFeeDelegation(txWithAddresses)
}
/**
* Prepare/sign/broadcast transaction using
* Ethereum native wallets on the client side.
*
* Note: Gas estimation not available
*
* @param tx The transaction that needs to be broadcasted
* @returns transaction hash
*/
private async broadcastWeb3(tx: MsgBroadcasterTxOptionsWithAddresses) {
const { options, endpoints, chainId, ethereumChainId } = this
const { walletStrategy } = options
const msgs = Array.isArray(tx.msgs) ? tx.msgs : [tx.msgs]
if (!ethereumChainId) {
throw new GeneralException(new Error('Please provide ethereumChainId'))
}
/** Account Details * */
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest)
const accountDetailsResponse = await chainRestAuthApi.fetchAccount(
tx.injectiveAddress,
)
const baseAccount = BaseAccount.fromRestApi(accountDetailsResponse)
const accountDetails = baseAccount.toAccountDetails()
/** Block Details */
const chainRestTendermintApi = new ChainRestTendermintApi(endpoints.rest)
const latestBlock = await chainRestTendermintApi.fetchLatestBlock()
const latestHeight = latestBlock.header.height
const timeoutHeight = new BigNumberInBase(latestHeight).plus(
DEFAULT_BLOCK_TIMEOUT_HEIGHT,
)
const gas = (tx.gas?.gas || getGasPriceBasedOnMessage(msgs)).toString()
/** EIP712 for signing on Ethereum wallets */
const eip712TypedData = getEip712TypedData({
msgs,
fee: getStdFee({ ...tx.gas, gas }),
tx: {
memo: tx.memo,
accountNumber: accountDetails.accountNumber.toString(),
sequence: accountDetails.sequence.toString(),
timeoutHeight: timeoutHeight.toFixed(),
chainId,
},
ethereumChainId,
})
/** Signing on Ethereum */
const signature = (await walletStrategy.signEip712TypedData(
JSON.stringify(eip712TypedData),
tx.ethereumAddress,
)) as string
const signatureBuff = hexToBuff(signature)
/** Get Public Key of the signer */
const publicKeyHex = recoverTypedSignaturePubKey(eip712TypedData, signature)
const publicKeyBase64 = hexToBase64(publicKeyHex)
/** Preparing the transaction for client broadcasting */
const { txRaw } = createTransaction({
message: msgs,
memo: tx.memo,
signMode: SIGN_AMINO,
fee: getStdFee({ ...tx.gas, gas }),
pubKey: publicKeyBase64,
sequence: baseAccount.sequence,
timeoutHeight: timeoutHeight.toNumber(),
accountNumber: baseAccount.accountNumber,
chainId,
})
const web3Extension = createWeb3Extension({
ethereumChainId,
})
const txRawEip712 = createTxRawEIP712(txRaw, web3Extension)
if (options.simulateTx) {
await this.simulateTxRaw(txRawEip712)
}
/** Append Signatures */
txRawEip712.signatures = [signatureBuff]
return walletStrategy.sendTransaction(txRawEip712, {
chainId,
endpoints,
address: tx.injectiveAddress,
})
}
/**
* Prepare/sign/broadcast transaction using
* Ethereum native wallets using the Web3Gateway.
*
* @param tx The transaction that needs to be broadcasted
* @returns transaction hash
*/
private async broadcastWeb3WithFeeDelegation(
tx: MsgBroadcasterTxOptionsWithAddresses,
) {
const { options, ethereumChainId, endpoints } = this
const { walletStrategy } = options
const msgs = Array.isArray(tx.msgs) ? tx.msgs : [tx.msgs]
const web3Msgs = msgs.map((msg) => msg.toWeb3())
if (!ethereumChainId) {
throw new GeneralException(new Error('Please provide ethereumChainId'))
}
const transactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)
const txResponse = await transactionApi.prepareTxRequest({
memo: tx.memo,
message: web3Msgs,
address: tx.ethereumAddress,
chainId: ethereumChainId,
gasLimit: getGasPriceBasedOnMessage(msgs),
estimateGas: options.simulateTx || false,
})
const signature = await walletStrategy.signEip712TypedData(
txResponse.data,
tx.ethereumAddress,
)
const response = await transactionApi.broadcastTxRequest({
signature,
txResponse,
message: web3Msgs,
chainId: ethereumChainId,
})
return await new TxGrpcApi(endpoints.grpc).fetchTxPoll(response.txHash)
}
/**
* Prepare/sign/broadcast transaction using
* Cosmos native wallets on the client side.
*
* @param tx The transaction that needs to be broadcasted
* @returns transaction hash
*/
private async broadcastCosmos(tx: MsgBroadcasterTxOptionsWithAddresses) {
const { options, endpoints, chainId } = this
const { walletStrategy } = options
const msgs = Array.isArray(tx.msgs) ? tx.msgs : [tx.msgs]
/**
* When using Ledger with Keplr we have
* to send EIP712 to sign on Keplr
*/
if (walletStrategy.getWallet() === Wallet.Keplr) {
const walletDeviceType = await walletStrategy.getWalletDeviceType()
const isLedgerConnectedOnKeplr =
walletDeviceType === WalletDeviceType.Hardware
if (isLedgerConnectedOnKeplr) {
return this.experimentalBroadcastKeplrWithLedger(tx)
}
}
/** Account Details * */
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest)
const accountDetailsResponse = await chainRestAuthApi.fetchAccount(
tx.injectiveAddress,
)
const baseAccount = BaseAccount.fromRestApi(accountDetailsResponse)
const accountDetails = baseAccount.toAccountDetails()
/** Block Details */
const chainRestTendermintApi = new ChainRestTendermintApi(endpoints.rest)
const latestBlock = await chainRestTendermintApi.fetchLatestBlock()
const latestHeight = latestBlock.header.height
const timeoutHeight = new BigNumberInBase(latestHeight).plus(
DEFAULT_BLOCK_TIMEOUT_HEIGHT,
)
const pubKey = await walletStrategy.getPubKey()
const gas = (tx.gas?.gas || getGasPriceBasedOnMessage(msgs)).toString()
/** Prepare the Transaction * */
const { txRaw } = await this.getTxWithSignersAndStdFee({
chainId,
memo: tx.memo,
message: msgs,
timeoutHeight: timeoutHeight.toNumber(),
signers: {
pubKey,
accountNumber: accountDetails.accountNumber,
sequence: accountDetails.sequence,
},
fee: getStdFee({ ...tx.gas, gas }),
})
const directSignResponse = (await walletStrategy.signCosmosTransaction({
txRaw,
chainId,
address: tx.injectiveAddress,
accountNumber: accountDetails.accountNumber,
})) as DirectSignResponse
return walletStrategy.sendTransaction(directSignResponse, {
chainId,
endpoints,
address: tx.injectiveAddress,
})
}
/**
* We use this method only when we want to broadcast a transaction using Ledger on Keplr for Injective
*
* Note: Gas estimation not available
* @param tx the transaction that needs to be broadcasted
*/
private async experimentalBroadcastKeplrWithLedger(
tx: MsgBroadcasterTxOptionsWithAddresses,
) {
const { options, endpoints, chainId, ethereumChainId } = this
const { walletStrategy } = options
const msgs = Array.isArray(tx.msgs) ? tx.msgs : [tx.msgs]
/**
* We can only use this method when Keplr is connected
* with ledger
*/
if (walletStrategy.getWallet() === Wallet.Keplr) {
const walletDeviceType = await walletStrategy.getWalletDeviceType()
const isLedgerConnectedOnKeplr =
walletDeviceType === WalletDeviceType.Hardware
if (!isLedgerConnectedOnKeplr) {
throw new GeneralException(
new Error(
'This method can only be used when Keplr is connected with Ledger',
),
)
}
}
if (!ethereumChainId) {
throw new GeneralException(new Error('Please provide ethereumChainId'))
}
const keplrWallet = new KeplrWallet(chainId, {
rest: endpoints.rest,
rpc: endpoints.rpc,
})
/** Account Details * */
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest)
const accountDetailsResponse = await chainRestAuthApi.fetchAccount(
tx.injectiveAddress,
)
const baseAccount = BaseAccount.fromRestApi(accountDetailsResponse)
const accountDetails = baseAccount.toAccountDetails()
/** Block Details */
const chainRestTendermintApi = new ChainRestTendermintApi(endpoints.rest)
const latestBlock = await chainRestTendermintApi.fetchLatestBlock()
const latestHeight = latestBlock.header.height
const timeoutHeight = new BigNumberInBase(latestHeight).plus(
DEFAULT_BLOCK_TIMEOUT_HEIGHT,
)
const pubKey = await walletStrategy.getPubKey()
const gas = (tx.gas?.gas || getGasPriceBasedOnMessage(msgs)).toString()
/** EIP712 for signing on Ethereum wallets */
const eip712TypedData = getEip712TypedData({
msgs,
fee: getStdFee({ ...tx.gas, gas }),
tx: {
memo: tx.memo,
accountNumber: accountDetails.accountNumber.toString(),
sequence: accountDetails.sequence.toString(),
timeoutHeight: timeoutHeight.toFixed(),
chainId,
},
ethereumChainId,
})
const aminoSignResponse = await keplrWallet.signEIP712CosmosTx({
eip712: eip712TypedData,
signDoc: createEip712StdSignDoc({
...tx,
...baseAccount,
msgs,
chainId,
gas: gas || tx.gas?.gas?.toString(),
timeoutHeight: timeoutHeight.toFixed(),
}),
})
/**
* Create TxRaw from the signed tx that we
* get as a response in case the user changed the fee/memo
* on the Keplr popup
*/
const { txRaw } = createTransaction({
pubKey,
message: msgs,
memo: aminoSignResponse.signed.memo,
signMode: SIGN_AMINO,
fee: aminoSignResponse.signed.fee,
sequence: parseInt(aminoSignResponse.signed.sequence, 10),
timeoutHeight: parseInt(
(aminoSignResponse.signed as any).timeout_height,
10,
),
accountNumber: parseInt(aminoSignResponse.signed.account_number, 10),
chainId,
})
/** Preparing the transaction for client broadcasting */
const web3Extension = createWeb3Extension({
ethereumChainId,
})
const txRawEip712 = createTxRawEIP712(txRaw, web3Extension)
if (options.simulateTx) {
await this.simulateTxRaw(txRawEip712)
}
/** Append Signatures */
const signatureBuff = Buffer.from(
aminoSignResponse.signature.signature,
'base64',
)
txRawEip712.signatures = [signatureBuff]
/** Broadcast the transaction */
const response = await new TxGrpcApi(endpoints.grpc).broadcast(txRawEip712)
if (response.code !== 0) {
throw new TransactionException(new Error(response.rawLog), {
code: UnspecifiedErrorCode,
contextCode: response.code,
contextModule: response.codespace,
})
}
return response
}
/**
* Prepare/sign/broadcast transaction using
* Cosmos native wallets using the Web3Gateway.
*
* @param tx The transaction that needs to be broadcasted
* @returns transaction hash
*/
private async broadcastCosmosWithFeeDelegation(
tx: MsgBroadcasterTxOptionsWithAddresses,
) {
const { options, chainId, endpoints } = this
const { walletStrategy } = options
const msgs = Array.isArray(tx.msgs) ? tx.msgs : [tx.msgs]
const feePayerPubKey = await this.fetchFeePayerPubKey(
options.feePayerPubKey,
)
const feePayerPublicKey = PublicKey.fromBase64(feePayerPubKey)
const feePayer = feePayerPublicKey.toAddress().address
/** Account Details * */
const chainRestAuthApi = new ChainRestAuthApi(endpoints.rest)
const accountDetailsResponse = await chainRestAuthApi.fetchAccount(
tx.injectiveAddress,
)
const baseAccount = BaseAccount.fromRestApi(accountDetailsResponse)
const accountDetails = baseAccount.toAccountDetails()
/** Fee Payer Account Details */
const feePayerAccountDetailsResponse = await chainRestAuthApi.fetchAccount(
feePayer,
)
const feePayerBaseAccount = BaseAccount.fromRestApi(
feePayerAccountDetailsResponse,
)
const feePayerAccountDetails = feePayerBaseAccount.toAccountDetails()
/** Block Details */
const chainRestTendermintApi = new ChainRestTendermintApi(endpoints.rest)
const latestBlock = await chainRestTendermintApi.fetchLatestBlock()
const latestHeight = latestBlock.header.height
const timeoutHeight = new BigNumberInBase(latestHeight).plus(
DEFAULT_BLOCK_TIMEOUT_HEIGHT,
)
const pubKey = await walletStrategy.getPubKey()
const gas = (tx.gas?.gas || getGasPriceBasedOnMessage(msgs)).toString()
/** Prepare the Transaction * */
const { txRaw } = await this.getTxWithSignersAndStdFee({
chainId,
memo: tx.memo,
message: msgs,
timeoutHeight: timeoutHeight.toNumber(),
signers: [
{
pubKey,
accountNumber: accountDetails.accountNumber,
sequence: accountDetails.sequence,
},
{
pubKey: feePayerPublicKey.toBase64(),
accountNumber: feePayerAccountDetails.accountNumber,
sequence: feePayerAccountDetails.sequence,
},
],
fee: getStdFee({ ...tx.gas, gas, payer: feePayer }),
})
// Temporary remove tx gas check because Keplr doesn't recognize feePayer
if (walletStrategy.wallet === Wallet.Keplr) {
new KeplrWallet(chainId).disableGasCheck()
}
const directSignResponse = (await walletStrategy.signCosmosTransaction({
txRaw,
chainId,
address: tx.injectiveAddress,
accountNumber: accountDetails.accountNumber,
})) as DirectSignResponse
const transactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)
const response = await transactionApi.broadcastCosmosTxRequest({
address: tx.injectiveAddress,
txRaw: createTxRawFromSigResponse(directSignResponse),
signature: directSignResponse.signature.signature,
pubKey: directSignResponse.signature.pub_key,
})
// Re-enable tx gas check removed above
if (walletStrategy.wallet === Wallet.Keplr) {
new KeplrWallet(chainId).enableGasCheck()
}
return await new TxGrpcApi(endpoints.grpc).fetchTxPoll(response.txHash)
}
/**
* Fetch the fee payer's pub key from the web3 gateway
*
* Returns a base64 version of it
*/
private async fetchFeePayerPubKey(existingFeePayerPubKey?: string) {
if (existingFeePayerPubKey) {
return existingFeePayerPubKey
}
const { endpoints } = this
const transactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)
const response = await transactionApi.fetchFeePayer()
if (!response.feePayerPubKey) {
throw new GeneralException(new Error('Please provide a feePayerPubKey'))
}
if (
response.feePayerPubKey.key.startsWith('0x') ||
response.feePayerPubKey.key.length === 66
) {
return Buffer.from(response.feePayerPubKey.key, 'hex').toString('base64')
}
return response.feePayerPubKey.key
}
/**
* In case we don't want to simulate the transaction
* we get the gas limit based on the message type.
*
* If we want to simulate the transaction we set the
* gas limit based on the simulation and add a small multiplier
* to be safe (factor of 1.2)
*/
private async getTxWithSignersAndStdFee(
args: CreateTransactionWithSignersArgs,
) {
const { options } = this
const { simulateTx } = options
if (!simulateTx) {
return {
...createTransactionWithSigners(args),
stdFee: getStdFee({ ...args.fee }),
}
}
const result = await this.simulateTxWithSigners(args)
if (!result.gasInfo?.gasUsed) {
return {
...createTransactionWithSigners(args),
stdFee: getStdFee({ ...args.fee }),
}
}
const stdGasFee = {
...getStdFee({
...args.fee,
gas: new BigNumberInBase(result.gasInfo.gasUsed).times(1.2).toFixed(),
}),
}
return {
...createTransactionWithSigners({
...args,
fee: stdGasFee,
}),
stdFee: stdGasFee,
}
}
/**
* Create TxRaw and simulate it
*/
private async simulateTxRaw(txRaw: CosmosTxV1Beta1Tx.TxRaw) {
const { endpoints } = this
txRaw.signatures = [new Uint8Array(0)]
const simulationResponse = await new TxGrpcApi(endpoints.grpc).simulate(
txRaw,
)
return simulationResponse
}
/**
* Create TxRaw and simulate it
*/
private async simulateTxWithSigners(args: CreateTransactionWithSignersArgs) {
const { endpoints } = this
const { txRaw } = createTransactionWithSigners(args)
txRaw.signatures = Array(
Array.isArray(args.signers) ? args.signers.length : 1,
).fill(new Uint8Array(0))
const simulationResponse = await new TxGrpcApi(endpoints.grpc).simulate(
txRaw,
)
return simulationResponse
}
}