mirror of
https://github.com/Such-Software/hash-wallet.git
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feat: Pay Anything from Any Wallet (#2450)
* feat: Pay Anything from Any Wallet * feat: Trigger payment flow when address is pasted * chore: Remove unneeded changes * feat Expand address checks and fix scanning bch qrs * fix: Add support for dogecoin * feat: More modifications for Pay from Any Wallet This change: - Adds the pay from any wallet flow to externally signed QR codes - Adds fixes for review comments - Fixes failing tests --------- Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
This commit is contained in:
David Adegoke
co-authored by
Omar Hatem
Omar Hatem
parent
16f058e9e2
commit
13a74133f5
@@ -0,0 +1,232 @@
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import 'package:cake_wallet/utils/payment_request.dart';
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import 'package:cw_core/crypto_currency.dart';
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import 'package:cw_core/wallet_type.dart';
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class AddressDetectionResult {
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AddressDetectionResult({
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required this.address,
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this.detectedCurrency,
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this.detectedWalletType,
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this.amount,
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this.note,
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this.scheme,
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this.pjUri,
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this.callbackUrl,
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this.callbackMessage,
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required this.isValid,
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this.errorMessage,
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});
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final String address;
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final CryptoCurrency? detectedCurrency;
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final WalletType? detectedWalletType;
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final String? amount;
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final String? note;
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final String? scheme;
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final String? pjUri;
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final String? callbackUrl;
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final String? callbackMessage;
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final bool isValid;
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final String? errorMessage;
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}
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/// Universal address detector that can identify cryptocurrency addresses from various formats
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class UniversalAddressDetector {
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/// Detects cryptocurrency address from various input formats
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/// Supports: raw addresses, URIs, and QR codes
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static AddressDetectionResult detectAddress(String input) {
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if (input.trim().isEmpty) {
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return AddressDetectionResult(
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address: '',
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detectedCurrency: null,
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isValid: false,
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errorMessage: 'Empty input provided',
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);
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}
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// Try to parse as URI first
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final uriResult = _detectFromUri(input);
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if (uriResult.isValid) return uriResult;
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// Try to detect from raw address patterns
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final rawAddressResult = _detectFromRawAddress(input);
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if (rawAddressResult.isValid) return rawAddressResult;
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return AddressDetectionResult(
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address: input,
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detectedCurrency: null,
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isValid: false,
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errorMessage: 'Unable to detect valid cryptocurrency address',
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);
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}
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/// Detects address from URI format (e.g., bitcoin:address?amount=0.001)
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static AddressDetectionResult _detectFromUri(String input) {
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try {
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final uri = Uri.parse(input);
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final paymentRequest = PaymentRequest.fromUri(uri);
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// Determine currency from scheme
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final currency = CryptoCurrency.fromString(uri.scheme.toLowerCase());
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return AddressDetectionResult(
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address: paymentRequest.address,
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detectedCurrency: currency,
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detectedWalletType: cryptoCurrencyToWalletType(currency),
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amount: paymentRequest.amount,
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note: paymentRequest.note,
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scheme: paymentRequest.scheme,
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pjUri: paymentRequest.pjUri,
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callbackUrl: paymentRequest.callbackUrl,
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callbackMessage: paymentRequest.callbackMessage,
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isValid: true,
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);
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} catch (e) {
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return AddressDetectionResult(
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address: input,
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detectedCurrency: null,
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isValid: false,
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errorMessage: 'Failed to parse URI: $e',
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);
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}
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}
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/// Detect address from raw address patterns
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static AddressDetectionResult _detectFromRawAddress(String input) {
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final cleanInput = input.trim();
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// Detection patterns ordered by specificity (most specific first)
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final detectionPatterns = [
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// Lightning Network
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_DetectionPattern(
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pattern: RegExp(r'^(lnbc|LNBC)[a-km-zA-HJ-NP-Z1-9]{1,}[a-zA-Z0-9]+$'),
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currency: CryptoCurrency.btcln,
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),
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// Bitcoin Bech32
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_DetectionPattern(
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pattern: RegExp(r'^bc1[a-km-zA-HJ-NP-Z1-9]{25,39}$'),
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currency: CryptoCurrency.btc,
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),
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// Litecoin Bech32
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_DetectionPattern(
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pattern: RegExp(r'^ltc1[a-z0-9]{25,50}$'),
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currency: CryptoCurrency.ltc,
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),
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// Bitcoin Cash
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_DetectionPattern(
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pattern: RegExp(r'^(q|p)[a-z0-9]{41}$'),
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currency: CryptoCurrency.bch,
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),
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// Ethereum
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_DetectionPattern(
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pattern: RegExp(r'^0x[a-fA-F0-9]{40}$'),
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currency: CryptoCurrency.eth,
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),
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// Nano
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_DetectionPattern(
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pattern: RegExp(r'^nano_[a-km-zA-HJ-NP-Z1-9]{60}$'),
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currency: CryptoCurrency.nano,
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),
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// Banano
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_DetectionPattern(
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pattern: RegExp(r'^ban_[a-km-zA-HJ-NP-Z1-9]{60}$'),
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currency: CryptoCurrency.banano,
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),
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// Tron
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_DetectionPattern(
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pattern: RegExp(r'^T[a-km-zA-HJ-NP-Z1-9]{33}$'),
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currency: CryptoCurrency.trx,
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),
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// Zano alias
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_DetectionPattern(
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pattern: RegExp(r'^@[\w\d.-]+$'),
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currency: CryptoCurrency.zano,
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),
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// Monero (standard) - 95 characters
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_DetectionPattern(
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pattern: RegExp(r'^4[a-km-zA-HJ-NP-Z1-9]{94}$'),
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currency: CryptoCurrency.xmr,
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),
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// Monero (integrated) - 95 characters
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_DetectionPattern(
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pattern: RegExp(r'^8[a-km-zA-HJ-NP-Z1-9]{94}$'),
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currency: CryptoCurrency.xmr,
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),
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// Wownero - 97 characters
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_DetectionPattern(
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pattern: RegExp(r'^W[a-km-zA-HJ-NP-Z1-9]{96}$'),
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currency: CryptoCurrency.wow,
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),
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// Zano (long addresses) - 97 characters
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_DetectionPattern(
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pattern: RegExp(r'^Z[a-km-zA-HJ-NP-Z1-9]{96}$'),
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currency: CryptoCurrency.zano,
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),
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// Decred
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_DetectionPattern(
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pattern: RegExp(r'^(D|T|S)[ksecS][a-km-zA-HJ-NP-Z1-9]+$'),
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currency: CryptoCurrency.dcr,
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),
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// Bitcoin P2PKH/P2SH (legacy formats)
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_DetectionPattern(
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pattern: RegExp(r'^[13][a-km-zA-HJ-NP-Z1-9]{25,34}$'),
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currency: CryptoCurrency.btc,
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),
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// Litecoin P2PKH/P2SH
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_DetectionPattern(
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pattern: RegExp(r'^(L|M|3)[a-km-zA-HJ-NP-Z1-9]{25,34}$'),
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currency: CryptoCurrency.ltc,
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),
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// Solana (Base58 format, 32-44 chars)
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_DetectionPattern(
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pattern: RegExp(r'^[1-9A-HJ-NP-Za-km-z]{32,44}$'),
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currency: CryptoCurrency.sol,
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),
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];
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// Test each pattern in order of specificity
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for (final pattern in detectionPatterns) {
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if (pattern.pattern.hasMatch(cleanInput)) {
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return AddressDetectionResult(
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address: cleanInput,
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detectedCurrency: pattern.currency,
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detectedWalletType: cryptoCurrencyToWalletType(pattern.currency),
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isValid: true,
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);
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}
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}
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return AddressDetectionResult(
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address: cleanInput,
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detectedCurrency: null,
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isValid: false,
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);
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}
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}
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class _DetectionPattern {
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const _DetectionPattern({
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required this.pattern,
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required this.currency,
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});
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final RegExp pattern;
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final CryptoCurrency currency;
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}
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