mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-12-28 22:39:21 +00:00
395 lines
15 KiB
Dart
395 lines
15 KiB
Dart
/*
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* This file is part of Stack Wallet.
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*
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* Copyright (c) 2023 Cypher Stack
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* All Rights Reserved.
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* The code is distributed under GPLv3 license, see LICENSE file for details.
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* Generated by Cypher Stack on 2023-05-26
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*
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*/
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import 'dart:convert';
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import '../app_config.dart';
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import '../wallets/crypto_currency/crypto_currency.dart';
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class AddressUtils {
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static final Set<String> recognizedParams = {
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'amount',
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'label',
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'message',
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'tx_amount', // For Monero/Wownero.
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'tx_payment_id',
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'recipient_name',
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'tx_description',
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// TODO [prio=med]: Add more recognized params for other coins.
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};
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static String condenseAddress(String address) {
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return '${address.substring(0, 5)}...${address.substring(address.length - 5)}';
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}
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// static bool validateAddress(String address, Coin coin) {
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// //This calls the validate address for each crypto coin, validateAddress is
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// //only used in 2 places, so I just replaced the old functionality here
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// switch (coin) {
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// case Coin.bitcoin:
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// return Bitcoin(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.bitcoinFrost:
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// return BitcoinFrost(CryptoCurrencyNetwork.main)
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// .validateAddress(address);
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// case Coin.litecoin:
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// return Litecoin(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.bitcoincash:
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// return Bitcoincash(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.dogecoin:
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// return Dogecoin(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.epicCash:
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// return Epiccash(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.ethereum:
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// return Ethereum(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.firo:
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// return Firo(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.eCash:
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// return Ecash(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.monero:
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// return Monero(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.wownero:
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// return Wownero(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.namecoin:
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// return Namecoin(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.particl:
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// return Particl(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.peercoin:
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// return Peercoin(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.solana:
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// return Solana(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.stellar:
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// return Stellar(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.nano:
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// return Nano(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.banano:
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// return Banano(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.tezos:
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// return Tezos(CryptoCurrencyNetwork.main).validateAddress(address);
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// case Coin.bitcoinTestNet:
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// return Bitcoin(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.bitcoinFrostTestNet:
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// return BitcoinFrost(CryptoCurrencyNetwork.test)
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// .validateAddress(address);
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// case Coin.litecoinTestNet:
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// return Litecoin(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.bitcoincashTestnet:
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// return Bitcoincash(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.firoTestNet:
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// return Firo(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.dogecoinTestNet:
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// return Dogecoin(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.peercoinTestNet:
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// return Peercoin(CryptoCurrencyNetwork.test).validateAddress(address);
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// case Coin.stellarTestnet:
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// return Stellar(CryptoCurrencyNetwork.test).validateAddress(address);
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// }
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// // throw Exception("moved");
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// // switch (coin) {
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// // case Coin.bitcoin:
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// // return Address.validateAddress(address, bitcoin);
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// // case Coin.litecoin:
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// // return Address.validateAddress(address, litecoin);
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// // case Coin.bitcoincash:
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// // try {
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// // // 0 for bitcoincash: address scheme, 1 for legacy address
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// // final format = bitbox.Address.detectFormat(address);
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// //
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// // if (coin == Coin.bitcoincashTestnet) {
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// // return true;
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// // }
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// //
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// // if (format == bitbox.Address.formatCashAddr) {
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// // String addr = address;
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// // if (addr.contains(":")) {
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// // addr = addr.split(":").last;
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// // }
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// //
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// // return addr.startsWith("q");
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// // } else {
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// // return address.startsWith("1");
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// // }
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// // } catch (e) {
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// // return false;
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// // }
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// // case Coin.dogecoin:
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// // return Address.validateAddress(address, dogecoin);
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// // case Coin.epicCash:
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// // return validateSendAddress(address) == "1";
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// // case Coin.ethereum:
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// // return true; //TODO - validate ETH address
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// // case Coin.firo:
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// // return Address.validateAddress(address, firoNetwork);
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// // case Coin.eCash:
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// // return Address.validateAddress(address, eCashNetwork);
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// // case Coin.monero:
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// // return RegExp("[a-zA-Z0-9]{95}").hasMatch(address) ||
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// // RegExp("[a-zA-Z0-9]{106}").hasMatch(address);
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// // case Coin.wownero:
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// // return RegExp("[a-zA-Z0-9]{95}").hasMatch(address) ||
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// // RegExp("[a-zA-Z0-9]{106}").hasMatch(address);
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// // case Coin.namecoin:
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// // return Address.validateAddress(address, namecoin, namecoin.bech32!);
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// // case Coin.particl:
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// // return Address.validateAddress(address, particl);
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// // case Coin.stellar:
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// // return RegExp(r"^[G][A-Z0-9]{55}$").hasMatch(address);
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// // case Coin.nano:
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// // return NanoAccounts.isValid(NanoAccountType.NANO, address);
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// // case Coin.banano:
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// // return NanoAccounts.isValid(NanoAccountType.BANANO, address);
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// // case Coin.tezos:
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// // return RegExp(r"^tz[1-9A-HJ-NP-Za-km-z]{34}$").hasMatch(address);
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// // case Coin.bitcoinTestNet:
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// // return Address.validateAddress(address, testnet);
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// // case Coin.litecoinTestNet:
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// // return Address.validateAddress(address, litecointestnet);
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// // case Coin.bitcoincashTestnet:
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// // try {
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// // // 0 for bitcoincash: address scheme, 1 for legacy address
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// // final format = bitbox.Address.detectFormat(address);
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// //
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// // if (coin == Coin.bitcoincashTestnet) {
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// // return true;
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// // }
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// //
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// // if (format == bitbox.Address.formatCashAddr) {
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// // String addr = address;
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// // if (addr.contains(":")) {
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// // addr = addr.split(":").last;
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// // }
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// //
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// // return addr.startsWith("q");
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// // } else {
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// // return address.startsWith("1");
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// // }
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// // } catch (e) {
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// // return false;
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// // }
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// // case Coin.firoTestNet:
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// // return Address.validateAddress(address, firoTestNetwork);
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// // case Coin.dogecoinTestNet:
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// // return Address.validateAddress(address, dogecointestnet);
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// // case Coin.stellarTestnet:
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// // return RegExp(r"^[G][A-Z0-9]{55}$").hasMatch(address);
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// // }
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// }
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/// Return only recognized parameters.
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static Map<String, String> filterParams(Map<String, String> params) {
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return Map.fromEntries(params.entries
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.where((entry) => recognizedParams.contains(entry.key.toLowerCase())));
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}
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/// Parses a URI string and returns a map with parsed components.
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static Map<String, String> parseUri(String uri) {
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final Map<String, String> result = {};
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try {
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final u = Uri.parse(uri);
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if (u.hasScheme) {
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result["scheme"] = u.scheme.toLowerCase();
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// Handle different URI formats.
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if (result["scheme"] == "bitcoin" ||
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result["scheme"] == "bitcoincash") {
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result["address"] = u.path;
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} else if (result["scheme"] == "monero") {
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// Monero addresses can contain '?' which Uri.parse interprets as query start.
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final addressEnd =
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uri.indexOf('?', 7); // 7 is the length of "monero:".
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if (addressEnd != -1) {
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result["address"] = uri.substring(7, addressEnd);
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} else {
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result["address"] = uri.substring(7);
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}
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} else {
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// Default case, treat path as address.
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result["address"] = u.path;
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}
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// Parse query parameters.
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result.addAll(_parseQueryParameters(u.queryParameters));
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// Handle Monero-specific fragment (tx_description).
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if (u.fragment.isNotEmpty && result["scheme"] == "monero") {
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result["tx_description"] = Uri.decodeComponent(u.fragment);
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}
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}
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} catch (e) {
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print("Exception caught in parseUri($uri): $e");
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}
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return result;
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}
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/// Helper method to parse and normalize query parameters.
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static Map<String, String> _parseQueryParameters(Map<String, String> params) {
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final Map<String, String> result = {};
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params.forEach((key, value) {
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final lowerKey = key.toLowerCase();
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if (recognizedParams.contains(lowerKey)) {
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switch (lowerKey) {
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case 'amount':
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case 'tx_amount':
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result['amount'] = _normalizeAmount(value);
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break;
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case 'label':
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case 'recipient_name':
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result['label'] = Uri.decodeComponent(value);
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break;
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case 'message':
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case 'tx_description':
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result['message'] = Uri.decodeComponent(value);
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break;
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case 'tx_payment_id':
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result['tx_payment_id'] = Uri.decodeComponent(value);
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break;
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default:
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result[lowerKey] = Uri.decodeComponent(value);
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}
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} else {
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// Include unrecognized parameters as-is.
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result[key] = Uri.decodeComponent(value);
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}
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});
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return result;
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}
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/// Normalizes amount value to a standard format.
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static String _normalizeAmount(String amount) {
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// Remove any non-numeric characters except for '.'
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final sanitized = amount.replaceAll(RegExp(r'[^\d.]'), '');
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// Ensure only one decimal point
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final parts = sanitized.split('.');
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if (parts.length > 2) {
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return '${parts[0]}.${parts.sublist(1).join()}';
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}
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return sanitized;
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}
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/// Centralized method to handle various cryptocurrency URIs and return a common object.
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static PaymentUriData parsePaymentUri(String uri) {
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final Map<String, String> parsedData = parseUri(uri);
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// Normalize the URI scheme.
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final String scheme = parsedData['scheme'] ?? '';
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parsedData.remove('scheme');
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// Determine the coin type based on the URI scheme.
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final CryptoCurrency coin = _getCryptoCurrencyByScheme(scheme);
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// Filter out unrecognized parameters.
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final filteredParams = filterParams(parsedData);
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return PaymentUriData(
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coin: coin,
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address: parsedData['address'] ?? '',
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amount: filteredParams['amount'] ?? filteredParams['tx_amount'],
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label: filteredParams['label'] ?? filteredParams['recipient_name'],
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message: filteredParams['message'] ?? filteredParams['tx_description'],
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paymentId: filteredParams['tx_payment_id'], // Specific to Monero
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additionalParams: filteredParams,
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);
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}
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/// Builds a uri string with the given address and query parameters (if any)
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static String buildUriString(
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String scheme,
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String address,
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Map<String, String> params,
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) {
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// Filter unrecognized parameters.
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final filteredParams = filterParams(params);
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String uriString = "$scheme:$address";
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if (scheme.toLowerCase() == "monero") {
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// Handle Monero-specific formatting.
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if (filteredParams.containsKey("tx_description")) {
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final description = filteredParams.remove("tx_description")!;
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if (filteredParams.isNotEmpty) {
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uriString += Uri(queryParameters: filteredParams).toString();
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}
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uriString += "#${Uri.encodeComponent(description)}";
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} else if (filteredParams.isNotEmpty) {
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uriString += Uri(queryParameters: filteredParams).toString();
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}
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} else {
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// General case for other cryptocurrencies.
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if (filteredParams.isNotEmpty) {
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uriString += Uri(queryParameters: filteredParams).toString();
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}
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}
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return uriString;
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}
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/// returns empty if bad data
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static Map<String, dynamic> decodeQRSeedData(String data) {
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Map<String, dynamic> result = {};
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try {
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result = Map<String, dynamic>.from(jsonDecode(data) as Map);
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} catch (e) {
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print("Exception caught in parseQRSeedData($data): $e");
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}
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return result;
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}
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/// encode mnemonic words to qrcode formatted string
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static String encodeQRSeedData(List<String> words) {
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return jsonEncode({"mnemonic": words});
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}
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/// Method to get CryptoCurrency based on URI scheme.
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static CryptoCurrency _getCryptoCurrencyByScheme(String scheme) {
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if (AppConfig.coins.map((e) => e.uriScheme).toSet().contains(scheme)) {
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return AppConfig.coins.firstWhere((e) => e.uriScheme == scheme);
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} else {
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throw UnsupportedError('Unsupported URI scheme: $scheme');
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}
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}
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/// Formats an address string to remove any unnecessary prefixes or suffixes.
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String formatAddress(String epicAddress) {
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// strip http:// or https:// prefixes if the address contains an @ symbol (and is thus an epicbox address)
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if ((epicAddress.startsWith("http://") ||
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epicAddress.startsWith("https://")) &&
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epicAddress.contains("@")) {
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epicAddress = epicAddress.replaceAll("http://", "");
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epicAddress = epicAddress.replaceAll("https://", "");
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}
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// strip mailto: prefix
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if (epicAddress.startsWith("mailto:")) {
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epicAddress = epicAddress.replaceAll("mailto:", "");
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}
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// strip / suffix if the address contains an @ symbol (and is thus an epicbox address)
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if (epicAddress.endsWith("/") && epicAddress.contains("@")) {
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epicAddress = epicAddress.substring(0, epicAddress.length - 1);
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}
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return epicAddress;
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}
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}
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class PaymentUriData {
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final CryptoCurrency coin;
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final String address;
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final String? amount;
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final String? label;
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final String? message;
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final String? paymentId; // Specific to Monero.
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final Map<String, String> additionalParams;
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PaymentUriData({
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required this.coin,
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required this.address,
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this.amount,
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this.label,
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this.message,
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this.paymentId,
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required this.additionalParams,
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});
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}
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