408 lines
18 KiB
Nim
408 lines
18 KiB
Nim
import json, strformat, strutils, chronicles, sequtils, sugar, httpclient, tables, net
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import json_serialization, stint
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from web3/ethtypes import Address, EthSend, Quantity
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from web3/conversions import `$`
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from libstatus/core import getBlockByNumber
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import libstatus/accounts as status_accounts
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import libstatus/tokens as status_tokens
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import libstatus/settings as status_settings
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import libstatus/wallet as status_wallet
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import libstatus/accounts/constants as constants
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import libstatus/eth/[eth, contracts]
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from libstatus/core import getBlockByNumber
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from utils as libstatus_utils import eth2Wei, gwei2Wei, first, toUInt64, parseAddress
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import wallet/[balance_manager, collectibles]
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import wallet/account as wallet_account
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import transactions
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import ../eventemitter
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import options
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import ./types/[account, transaction, network, setting, gas_prediction, rpc_response]
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export wallet_account, collectibles
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export Transaction
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logScope:
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topics = "wallet-model"
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proc confirmed*(self:PendingTransactionType):string =
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result = "transaction:" & $self
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type TransactionMinedArgs* = ref object of Args
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data*: string
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transactionHash*: string
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success*: bool
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revertReason*: string # TODO: possible to get revert reason in here?
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type WalletModel* = ref object
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events*: EventEmitter
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accounts*: seq[WalletAccount]
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defaultCurrency*: string
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tokens*: seq[Erc20Contract]
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totalBalance*: float
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proc getDefaultCurrency*(self: WalletModel): string
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proc calculateTotalFiatBalance*(self: WalletModel)
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proc newWalletModel*(events: EventEmitter): WalletModel =
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result = WalletModel()
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result.accounts = @[]
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result.tokens = @[]
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result.events = events
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result.defaultCurrency = ""
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result.totalBalance = 0.0
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proc initEvents*(self: WalletModel) =
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self.events.on("currencyChanged") do(e: Args):
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self.defaultCurrency = self.getDefaultCurrency()
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for account in self.accounts:
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updateBalance(account, self.getDefaultCurrency())
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self.calculateTotalFiatBalance()
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self.events.emit("accountsUpdated", Args())
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self.events.on("newAccountAdded") do(e: Args):
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self.calculateTotalFiatBalance()
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proc delete*(self: WalletModel) =
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discard
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proc buildTokenTransaction(source, to, assetAddress: Address, value: float, transfer: var Transfer, contract: var Erc20Contract, gas = "", gasPrice = ""): EthSend =
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contract = getErc20Contract(assetAddress)
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if contract == nil:
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raise newException(ValueError, fmt"Could not find ERC-20 contract with address '{assetAddress}' for the current network")
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transfer = Transfer(to: to, value: eth2Wei(value, contract.decimals))
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transactions.buildTokenTransaction(source, assetAddress, gas, gasPrice)
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proc getKnownTokenContract*(self: WalletModel, address: Address): Erc20Contract =
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getErc20Contracts().concat(getCustomTokens()).getErc20ContractByAddress(address)
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proc estimateGas*(self: WalletModel, source, to, value, data: string, success: var bool): string =
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var tx = transactions.buildTransaction(
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parseAddress(source),
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eth2Wei(parseFloat(value), 18),
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data = data
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)
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tx.to = parseAddress(to).some
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result = eth.estimateGas(tx, success)
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proc getTransactionReceipt*(self: WalletModel, transactionHash: string): JsonNode =
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result = status_wallet.getTransactionReceipt(transactionHash).parseJSON()["result"]
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proc confirmTransactionStatus(self: WalletModel, pendingTransactions: JsonNode, blockNumber: int) =
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for trx in pendingTransactions.getElems():
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let transactionReceipt = self.getTransactionReceipt(trx["hash"].getStr)
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if transactionReceipt.kind != JNull:
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status_wallet.deletePendingTransaction(trx["hash"].getStr)
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let ev = TransactionMinedArgs(
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data: trx["additionalData"].getStr,
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transactionHash: trx["hash"].getStr,
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success: transactionReceipt{"status"}.getStr == "0x1",
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revertReason: ""
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)
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self.events.emit(parseEnum[PendingTransactionType](trx["type"].getStr).confirmed, ev)
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proc getLatestBlockNumber*(self: WalletModel): int =
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let response = getBlockByNumber("latest").parseJson()
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if not response.hasKey("result"):
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return -1
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return parseInt($fromHex(Stuint[256], response["result"]["number"].getStr))
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proc checkPendingTransactions*(self: WalletModel) =
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let latestBlockNumber = self.getLatestBlockNumber()
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if latestBlockNumber == -1:
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return
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let pendingTransactions = status_wallet.getPendingTransactions()
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if (pendingTransactions != ""):
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self.confirmTransactionStatus(pendingTransactions.parseJson{"result"}, latestBlockNumber)
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proc checkPendingTransactions*(self: WalletModel, address: string, blockNumber: int) =
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self.confirmTransactionStatus(status_wallet.getPendingOutboundTransactionsByAddress(address).parseJson["result"], blockNumber)
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proc estimateTokenGas*(self: WalletModel, source, to, assetAddress, value: string, success: var bool): string =
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var
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transfer: Transfer
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contract: Erc20Contract
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tx = buildTokenTransaction(
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parseAddress(source),
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parseAddress(to),
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parseAddress(assetAddress),
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parseFloat(value),
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transfer,
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contract
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)
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result = contract.methods["transfer"].estimateGas(tx, transfer, success)
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proc sendTransaction*(source, to, value, gas, gasPrice, password: string, success: var bool, data = ""): string =
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var tx = transactions.buildTransaction(
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parseAddress(source),
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eth2Wei(parseFloat(value), 18), gas, gasPrice, data
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)
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if to != "":
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tx.to = parseAddress(to).some
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result = eth.sendTransaction(tx, password, success)
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if success:
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trackPendingTransaction(result, $source, $to, PendingTransactionType.WalletTransfer, "")
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proc sendTokenTransaction*(source, to, assetAddress, value, gas, gasPrice, password: string, success: var bool): string =
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var
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transfer: Transfer
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contract: Erc20Contract
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tx = buildTokenTransaction(
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parseAddress(source),
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parseAddress(to),
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parseAddress(assetAddress),
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parseFloat(value),
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transfer,
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contract,
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gas,
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gasPrice
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)
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result = contract.methods["transfer"].send(tx, transfer, password, success)
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if success:
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trackPendingTransaction(result, $source, $to, PendingTransactionType.WalletTransfer, "")
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proc getDefaultCurrency*(self: WalletModel): string =
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# TODO: this should come from a model? It is going to be used too in the
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# profile section and ideally we should not call the settings more than once
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status_settings.getSetting[string](Setting.Currency, "usd")
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# TODO: This needs to be removed or refactored so that test tokens are shown
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# when on testnet https://github.com/status-im/nim-status-client/issues/613.
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proc getStatusToken*(self: WalletModel): string =
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var
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token = Asset()
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erc20Contract = getSntContract()
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token.name = erc20Contract.name
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token.symbol = erc20Contract.symbol
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token.address = $erc20Contract.address
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result = $(%token)
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proc setDefaultCurrency*(self: WalletModel, currency: string) =
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discard status_settings.saveSetting(Setting.Currency, currency)
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self.events.emit("currencyChanged", CurrencyArgs(currency: currency))
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proc generateAccountConfiguredAssets*(self: WalletModel, accountAddress: string): seq[Asset] =
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var assets: seq[Asset] = @[]
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var asset = Asset(name:"Ethereum", symbol: "ETH", value: "0.0", fiatBalanceDisplay: "0.0", accountAddress: accountAddress)
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assets.add(asset)
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for token in self.tokens:
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var symbol = token.symbol
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var existingToken = Asset(name: token.name, symbol: symbol, value: fmt"0.0", fiatBalanceDisplay: "$0.0", accountAddress: accountAddress, address: $token.address)
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assets.add(existingToken)
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assets
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proc populateAccount*(self: WalletModel, walletAccount: var WalletAccount, balance: string, refreshCache: bool = false) =
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var assets: seq[Asset] = self.generateAccountConfiguredAssets(walletAccount.address)
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walletAccount.balance = none[string]()
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walletAccount.assetList = assets
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walletAccount.realFiatBalance = none[float]()
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proc update*(self: WalletModel, address: string, ethBalance: string, tokens: JsonNode) =
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for account in self.accounts:
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if account.address != address: continue
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storeBalances(account, ethBalance, tokens)
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updateBalance(account, self.getDefaultCurrency(), false)
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proc getEthBalance*(address: string): string =
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var balance = getBalance(address)
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result = hex2token(balance, 18)
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proc newAccount*(self: WalletModel, walletType: string, derivationPath: string, name: string, address: string, iconColor: string, balance: string, publicKey: string): WalletAccount =
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var assets: seq[Asset] = self.generateAccountConfiguredAssets(address)
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var account = WalletAccount(name: name, path: derivationPath, walletType: walletType, address: address, iconColor: iconColor, balance: none[string](), assetList: assets, realFiatBalance: none[float](), publicKey: publicKey)
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updateBalance(account, self.getDefaultCurrency())
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account
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proc initAccounts*(self: WalletModel) =
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self.tokens = status_tokens.getVisibleTokens()
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let accounts = status_wallet.getWalletAccounts()
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for account in accounts:
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var acc = WalletAccount(account)
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self.populateAccount(acc, "")
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updateBalance(acc, self.getDefaultCurrency(), true)
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self.accounts.add(acc)
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proc updateAccount*(self: WalletModel, address: string) =
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for acc in self.accounts.mitems:
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if acc.address == address:
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self.populateAccount(acc, "", true)
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updateBalance(acc, self.getDefaultCurrency(), true)
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self.events.emit("accountsUpdated", Args())
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proc getTotalFiatBalance*(self: WalletModel): string =
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self.calculateTotalFiatBalance()
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fmt"{self.totalBalance:.2f}"
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proc convertValue*(self: WalletModel, balance: string, fromCurrency: string, toCurrency: string): float =
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result = convertValue(balance, fromCurrency, toCurrency)
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proc calculateTotalFiatBalance*(self: WalletModel) =
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self.totalBalance = 0.0
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for account in self.accounts:
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if account.realFiatBalance.isSome:
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self.totalBalance += account.realFiatBalance.get()
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proc addNewGeneratedAccount(self: WalletModel, generatedAccount: GeneratedAccount, password: string, accountName: string, color: string, accountType: string, isADerivedAccount = true, walletIndex: int = 0) =
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try:
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generatedAccount.name = accountName
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var derivedAccount: DerivedAccount = status_accounts.saveAccount(generatedAccount, password, color, accountType, isADerivedAccount, walletIndex)
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var account = self.newAccount(accountType, derivedAccount.derivationPath, accountName, derivedAccount.address, color, fmt"0.00 {self.defaultCurrency}", derivedAccount.publicKey)
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self.accounts.add(account)
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# wallet_checkRecentHistory is required to be called when a new account is
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# added before wallet_getTransfersByAddress can be called. This is because
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# wallet_checkRecentHistory populates the status-go db that
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# wallet_getTransfersByAddress reads from
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discard status_wallet.checkRecentHistory(self.accounts.map(account => account.address))
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self.events.emit("newAccountAdded", wallet_account.AccountArgs(account: account))
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except Exception as e:
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raise newException(StatusGoException, fmt"Error adding new account: {e.msg}")
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proc generateNewAccount*(self: WalletModel, password: string, accountName: string, color: string) =
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let
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walletRootAddress = status_settings.getSetting[string](Setting.WalletRootAddress, "")
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walletIndex = status_settings.getSetting[int](Setting.LatestDerivedPath) + 1
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loadedAccount = status_accounts.loadAccount(walletRootAddress, password)
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derivedAccount = status_accounts.deriveWallet(loadedAccount.id, walletIndex)
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generatedAccount = GeneratedAccount(
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id: loadedAccount.id,
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publicKey: derivedAccount.publicKey,
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address: derivedAccount.address
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)
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# if we've gotten here, the password is ok (loadAccount requires a valid password)
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# so no need to check for a valid password
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self.addNewGeneratedAccount(generatedAccount, password, accountName, color, constants.GENERATED, true, walletIndex)
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let statusGoResult = status_settings.saveSetting(Setting.LatestDerivedPath, $walletIndex)
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if statusGoResult.error != "":
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error "Error storing the latest wallet index", msg=statusGoResult.error
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proc addAccountsFromSeed*(self: WalletModel, seed: string, password: string, accountName: string, color: string) =
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let mnemonic = replace(seed, ',', ' ')
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var generatedAccount = status_accounts.multiAccountImportMnemonic(mnemonic)
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generatedAccount.derived = status_accounts.deriveAccounts(generatedAccount.id)
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let
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defaultAccount = status_accounts.getDefaultAccount()
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isPasswordOk = status_accounts.verifyAccountPassword(defaultAccount, password)
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if not isPasswordOk:
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raise newException(StatusGoException, "Error generating new account: invalid password")
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self.addNewGeneratedAccount(generatedAccount, password, accountName, color, constants.SEED)
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proc addAccountsFromPrivateKey*(self: WalletModel, privateKey: string, password: string, accountName: string, color: string) =
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let
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generatedAccount = status_accounts.MultiAccountImportPrivateKey(privateKey)
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defaultAccount = status_accounts.getDefaultAccount()
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isPasswordOk = status_accounts.verifyAccountPassword(defaultAccount, password)
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if not isPasswordOk:
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raise newException(StatusGoException, "Error generating new account: invalid password")
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self.addNewGeneratedAccount(generatedAccount, password, accountName, color, constants.KEY, false)
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proc addWatchOnlyAccount*(self: WalletModel, address: string, accountName: string, color: string) =
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let account = GeneratedAccount(address: address)
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self.addNewGeneratedAccount(account, "", accountName, color, constants.WATCH, false)
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proc hasAsset*(self: WalletModel, symbol: string): bool =
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self.tokens.anyIt(it.symbol == symbol)
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proc changeAccountSettings*(self: WalletModel, address: string, accountName: string, color: string): string =
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var selectedAccount: WalletAccount
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for account in self.accounts:
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if (account.address == address):
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selectedAccount = account
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break
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if (isNil(selectedAccount)):
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result = "No account found with that address"
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error "No account found with that address", address
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selectedAccount.name = accountName
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selectedAccount.iconColor = color
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result = status_accounts.changeAccount(selectedAccount.name, selectedAccount.address,
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selectedAccount.publicKey, selectedAccount.walletType, selectedAccount.iconColor)
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proc deleteAccount*(self: WalletModel, address: string): string =
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result = status_accounts.deleteAccount(address)
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self.accounts = self.accounts.filter(acc => acc.address.toLowerAscii != address.toLowerAscii)
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proc toggleAsset*(self: WalletModel, symbol: string) =
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self.tokens = status_tokens.toggleAsset(symbol)
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for account in self.accounts:
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account.assetList = self.generateAccountConfiguredAssets(account.address)
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updateBalance(account, self.getDefaultCurrency())
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self.events.emit("assetChanged", Args())
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proc hideAsset*(self: WalletModel, symbol: string) =
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status_tokens.hideAsset(symbol)
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self.tokens = status_tokens.getVisibleTokens()
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for account in self.accounts:
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account.assetList = self.generateAccountConfiguredAssets(account.address)
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updateBalance(account, self.getDefaultCurrency())
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self.events.emit("assetChanged", Args())
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proc addCustomToken*(self: WalletModel, symbol: string, enable: bool, address: string, name: string, decimals: int, color: string) =
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addCustomToken(address, name, symbol, decimals, color)
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proc getTransfersByAddress*(self: WalletModel, address: string, toBlock: Uint256, limit: int, loadMore: bool): seq[Transaction] =
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result = status_wallet.getTransfersByAddress(address, toBlock, limit, loadMore)
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proc validateMnemonic*(self: WalletModel, mnemonic: string): string =
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result = status_wallet.validateMnemonic(mnemonic).parseJSON()["error"].getStr
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proc getGasPricePredictions*(): GasPricePrediction =
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if status_settings.getCurrentNetwork() != Network.Mainnet:
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# TODO: what about other chains like xdai?
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return GasPricePrediction(safeLow: 1.0, standard: 2.0, fast: 3.0, fastest: 4.0)
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let secureSSLContext = newContext()
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let client = newHttpClient(sslContext = secureSSLContext)
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try:
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let url: string = fmt"https://etherchain.org/api/gasPriceOracle"
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client.headers = newHttpHeaders({ "Content-Type": "application/json" })
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let response = client.request(url)
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result = Json.decode(response.body, GasPricePrediction)
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except Exception as e:
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echo "error getting gas price predictions"
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echo e.msg
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finally:
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client.close()
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proc checkRecentHistory*(self: WalletModel, addresses: seq[string]): string =
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result = status_wallet.checkRecentHistory(addresses)
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proc setInitialBlocksRange*(self: WalletModel): string =
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result = status_wallet.setInitialBlocksRange()
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proc getWalletAccounts*(self: WalletModel): seq[WalletAccount] =
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result = status_wallet.getWalletAccounts()
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proc getWalletAccounts*(): seq[WalletAccount] =
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result = status_wallet.getWalletAccounts()
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proc watchTransaction*(self: WalletModel, transactionHash: string): string =
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result = status_wallet.watchTransaction(transactionHash)
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proc getPendingTransactions*(self: WalletModel): string =
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result = status_wallet.getPendingTransactions()
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# proc getTransfersByAddress*(address: string): seq[types.Transaction] =
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# result = status_wallet.getTransfersByAddress(address)
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proc getTransfersByAddress*(address: string, toBlock: Uint256, limit: int, loadMore: bool): seq[Transaction] =
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result = status_wallet.getTransfersByAddress(address, toBlock, limit, loadMore)
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proc watchTransaction*(transactionHash: string): string =
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result = status_wallet.watchTransaction(transactionHash)
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proc hex2Token*(self: WalletModel, input: string, decimals: int): string =
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result = status_wallet.hex2Token(input, decimals)
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proc getOpenseaCollections*(address: string): string =
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result = status_wallet.getOpenseaCollections(address)
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proc getOpenseaAssets*(address: string, collectionSlug: string, limit: int): string =
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result = status_wallet.getOpenseaAssets(address, collectionSlug, limit) |