| 1 | import 'dart:convert'; |
| 2 | import 'package:cake_wallet/anypay/any_pay_payment_committed_info.dart'; |
| 3 | import 'package:cake_wallet/utils/exception_handler.dart'; |
| 4 | import 'package:cw_core/utils/proxy_wrapper.dart'; |
| 5 | import 'package:flutter/foundation.dart'; |
| 6 | import 'package:cw_core/crypto_currency.dart'; |
| 7 | import 'package:cake_wallet/anypay/any_pay_payment.dart'; |
| 8 | import 'package:cake_wallet/anypay/any_pay_trasnaction.dart'; |
| 9 | import 'package:cake_wallet/.secrets.g.dart' as secrets; |
| 10 | |
| 11 | class AnyPayApi { |
| 12 | static const contentTypePaymentRequest = 'application/payment-request'; |
| 13 | static const contentTypePayment = 'application/payment'; |
| 14 | static const xPayproVersion = '2'; |
| 15 | static const anypayToken = secrets.anypayToken; |
| 16 | |
| 17 | static String chainByScheme(String scheme) { |
| 18 | switch (scheme.toLowerCase()) { |
| 19 | case 'monero': |
| 20 | return CryptoCurrency.xmr.title; |
| 21 | case 'bitcoin': |
| 22 | return CryptoCurrency.btc.title; |
| 23 | case 'litecoin': |
| 24 | return CryptoCurrency.ltc.title; |
| 25 | default: |
| 26 | return ''; |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | static CryptoCurrency currencyByScheme(String scheme) { |
| 31 | switch (scheme.toLowerCase()) { |
| 32 | case 'monero': |
| 33 | return CryptoCurrency.xmr; |
| 34 | case 'bitcoin': |
| 35 | return CryptoCurrency.btc; |
| 36 | case 'litecoin': |
| 37 | return CryptoCurrency.ltc; |
| 38 | default: |
| 39 | throw Exception('Unexpected scheme: ${scheme}'); |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | Future<AnyPayPayment> paymentRequest(String uri) async { |
| 44 | final fragments = uri.split(':?r='); |
| 45 | final scheme = fragments.first; |
| 46 | final url = Uri.parse(fragments[1]); |
| 47 | final headers = <String, String>{ |
| 48 | 'Content-Type': contentTypePaymentRequest, |
| 49 | 'X-Paypro-Version': xPayproVersion, |
| 50 | 'Accept': '*/*', |
| 51 | 'x-wallet': 'cake', |
| 52 | 'x-wallet-token': anypayToken, |
| 53 | }; |
| 54 | final body = <String, dynamic>{ |
| 55 | 'chain': chainByScheme(scheme), |
| 56 | 'currency': currencyByScheme(scheme).title |
| 57 | }; |
| 58 | final response = await ProxyWrapper().post( |
| 59 | clearnetUri: url, |
| 60 | headers: headers, |
| 61 | body: json.encode(body), |
| 62 | ); |
| 63 | |
| 64 | if (response.statusCode != 200) { |
| 65 | await ExceptionHandler.onError(FlutterErrorDetails(exception: response)); |
| 66 | throw Exception('Unexpected response http code: ${response.statusCode}'); |
| 67 | } |
| 68 | |
| 69 | final decodedBody = json.decode(response.body) as Map<String, dynamic>; |
| 70 | return AnyPayPayment.fromMap(decodedBody); |
| 71 | } |
| 72 | |
| 73 | Future<AnyPayPaymentCommittedInfo> payment(String uri, |
| 74 | {required String chain, |
| 75 | required String currency, |
| 76 | required List<AnyPayTransaction> transactions}) async { |
| 77 | final headers = <String, String>{ |
| 78 | 'Content-Type': contentTypePayment, |
| 79 | 'X-Paypro-Version': xPayproVersion, |
| 80 | 'Accept': '*/*', |
| 81 | 'x-wallet': 'cake', |
| 82 | 'x-wallet-token': anypayToken, |
| 83 | }; |
| 84 | final body = <String, dynamic>{ |
| 85 | 'chain': chain, |
| 86 | 'currency': currency, |
| 87 | 'transactions': |
| 88 | transactions.map((tx) => {'tx': tx.tx, 'tx_hash': tx.id, 'tx_key': tx.key}).toList() |
| 89 | }; |
| 90 | final response = await ProxyWrapper().post( |
| 91 | clearnetUri: Uri.parse(uri), |
| 92 | headers: headers, |
| 93 | body: json.encode(body), |
| 94 | ); |
| 95 | |
| 96 | if (response.statusCode == 400) { |
| 97 | final decodedBody = json.decode(response.body) as Map<String, dynamic>; |
| 98 | throw Exception(decodedBody['message'] as String? ?? 'Unexpected response\nError code: 400'); |
| 99 | } |
| 100 | |
| 101 | if (response.statusCode != 200) { |
| 102 | throw Exception('Unexpected response'); |
| 103 | } |
| 104 | |
| 105 | final decodedBody = json.decode(response.body) as Map<String, dynamic>; |
| 106 | return AnyPayPaymentCommittedInfo( |
| 107 | uri: uri, |
| 108 | currency: currency, |
| 109 | chain: chain, |
| 110 | transactions: transactions, |
| 111 | memo: decodedBody['memo'] as String); |
| 112 | } |
| 113 | } |