| 1 | import 'dart:convert'; |
| 2 | import 'package:cake_wallet/anonpay/anonpay_donation_link_info.dart'; |
| 3 | import 'package:cake_wallet/anonpay/anonpay_invoice_info.dart'; |
| 4 | import 'package:cake_wallet/anonpay/anonpay_request.dart'; |
| 5 | import 'package:cake_wallet/anonpay/anonpay_status_response.dart'; |
| 6 | import 'package:cake_wallet/core/fiat_conversion_service.dart'; |
| 7 | import 'package:cake_wallet/entities/fiat_currency.dart'; |
| 8 | import 'package:cake_wallet/exchange/limits.dart'; |
| 9 | import 'package:cake_wallet/wallet_type_utils.dart'; |
| 10 | import 'package:cw_core/utils/proxy_wrapper.dart'; |
| 11 | import 'package:cw_core/wallet_base.dart'; |
| 12 | import 'package:cw_core/crypto_currency.dart'; |
| 13 | import 'package:cake_wallet/.secrets.g.dart' as secrets; |
| 14 | |
| 15 | class AnonPayApi { |
| 16 | const AnonPayApi({ |
| 17 | this.useTorOnly = false, |
| 18 | required this.wallet, |
| 19 | }); |
| 20 | final bool useTorOnly; |
| 21 | final WalletBase wallet; |
| 22 | |
| 23 | static const anonpayRef = secrets.anonPayReferralCode; |
| 24 | static const clearNetAuthority = 'trocador.app'; |
| 25 | // static const onionApiAuthority = 'tqzngtf2hybjbexznel6dhgsvbynjzezoybvtv6iofomx7gchqfssgqd.onion'; |
| 26 | static const onionApiAuthority = clearNetAuthority; |
| 27 | static const markup = secrets.trocadorExchangeMarkup; |
| 28 | static const anonPayPath = '/anonpay'; |
| 29 | static const anonPayStatus = '/anonpay/status'; |
| 30 | static const coinPath = 'api/coin'; |
| 31 | static final apiKey = isMoneroOnly ? secrets.trocadorMoneroApiKey : secrets.trocadorApiKey; |
| 32 | |
| 33 | Future<AnonpayStatusResponse> paymentStatus(String id) async { |
| 34 | final response = await ProxyWrapper().get( |
| 35 | clearnetUri: Uri.https(clearNetAuthority, "$anonPayStatus/$id"), |
| 36 | onionUri: Uri.https(onionApiAuthority, "$anonPayStatus/$id"), |
| 37 | ); |
| 38 | |
| 39 | final responseJSON = json.decode(response.body) as Map<String, dynamic>; |
| 40 | final status = responseJSON['Status'] as String; |
| 41 | final fiatAmount = responseJSON['Fiat_Amount'] as double?; |
| 42 | final fiatEquiv = responseJSON['Fiat_Equiv'] as String?; |
| 43 | final amountTo = responseJSON['AmountTo'] as double?; |
| 44 | final coinTo = responseJSON['CoinTo'] as String; |
| 45 | final address = responseJSON['Address'] as String; |
| 46 | |
| 47 | return AnonpayStatusResponse( |
| 48 | status: status, |
| 49 | fiatAmount: fiatAmount, |
| 50 | amountTo: amountTo, |
| 51 | coinTo: coinTo, |
| 52 | address: address, |
| 53 | fiatEquiv: fiatEquiv, |
| 54 | ); |
| 55 | } |
| 56 | |
| 57 | Future<AnonpayInvoiceInfo> createInvoice(AnonPayRequest request) async { |
| 58 | final description = Uri.encodeComponent(request.description); |
| 59 | final body = <String, dynamic>{ |
| 60 | 'ticker_to': request.cryptoCurrency.title.toLowerCase(), |
| 61 | 'network_to': _networkFor(request.cryptoCurrency), |
| 62 | 'address': request.address, |
| 63 | 'name': request.name, |
| 64 | 'description': description, |
| 65 | 'email': request.email, |
| 66 | 'ref': anonpayRef, |
| 67 | 'markup': markup, |
| 68 | 'direct': 'False', |
| 69 | }; |
| 70 | |
| 71 | if (request.amount != null) { |
| 72 | body['amount'] = request.amount; |
| 73 | } |
| 74 | if (request.fiatEquivalent != null) { |
| 75 | body['fiat_equiv'] = request.fiatEquivalent; |
| 76 | } |
| 77 | final response = await ProxyWrapper().get( |
| 78 | clearnetUri: Uri.https(clearNetAuthority, anonPayPath, body), |
| 79 | onionUri: Uri.https(onionApiAuthority, anonPayPath, body), |
| 80 | ); |
| 81 | |
| 82 | final responseJSON = json.decode(response.body) as Map<String, dynamic>; |
| 83 | final id = responseJSON['ID'] as String; |
| 84 | final url = responseJSON['url'] as String; |
| 85 | final urlOnion = responseJSON['url_onion'] as String; |
| 86 | final statusUrl = responseJSON['status_url'] as String; |
| 87 | final statusUrlOnion = responseJSON['status_url_onion'] as String; |
| 88 | |
| 89 | final statusInfo = await paymentStatus(id); |
| 90 | |
| 91 | return AnonpayInvoiceInfo( |
| 92 | invoiceId: id, |
| 93 | clearnetUrl: url, |
| 94 | onionUrl: urlOnion, |
| 95 | status: statusInfo.status, |
| 96 | fiatAmount: statusInfo.fiatAmount, |
| 97 | fiatEquiv: statusInfo.fiatEquiv, |
| 98 | amountTo: statusInfo.amountTo, |
| 99 | coinTo: statusInfo.coinTo, |
| 100 | address: statusInfo.address, |
| 101 | clearnetStatusUrl: statusUrl, |
| 102 | onionStatusUrl: statusUrlOnion, |
| 103 | walletId: wallet.id, |
| 104 | createdAt: DateTime.now(), |
| 105 | provider: 'Trocador AnonPay invoice', |
| 106 | ); |
| 107 | } |
| 108 | |
| 109 | Future<AnonpayDonationLinkInfo> generateDonationLink(AnonPayRequest request) async { |
| 110 | final body = <String, dynamic>{ |
| 111 | 'ticker_to': request.cryptoCurrency.title.toLowerCase(), |
| 112 | 'network_to': _networkFor(request.cryptoCurrency), |
| 113 | 'address': request.address, |
| 114 | 'ref': anonpayRef, |
| 115 | 'direct': 'True', |
| 116 | }; |
| 117 | if (request.name.isNotEmpty) { |
| 118 | body['name'] = request.name; |
| 119 | } |
| 120 | if (request.description.isNotEmpty) { |
| 121 | body['description'] = request.description; |
| 122 | } |
| 123 | if (request.email.isNotEmpty) { |
| 124 | body['email'] = request.email; |
| 125 | } |
| 126 | |
| 127 | final clearnetUrl = Uri.https(clearNetAuthority, anonPayPath, body); |
| 128 | final onionUrl = Uri.https(onionApiAuthority, anonPayPath, body); |
| 129 | return AnonpayDonationLinkInfo( |
| 130 | clearnetUrl: clearnetUrl.toString(), |
| 131 | onionUrl: onionUrl.toString(), |
| 132 | address: request.address, |
| 133 | ); |
| 134 | } |
| 135 | |
| 136 | Future<Limits> fetchLimits({ |
| 137 | FiatCurrency? fiatCurrency, |
| 138 | required CryptoCurrency cryptoCurrency, |
| 139 | }) async { |
| 140 | double fiatRate = 0.0; |
| 141 | if (fiatCurrency != null) { |
| 142 | fiatRate = await FiatConversionService.fetchPrice( |
| 143 | crypto: cryptoCurrency, |
| 144 | fiat: fiatCurrency, |
| 145 | torOnly: useTorOnly, |
| 146 | ); |
| 147 | } |
| 148 | |
| 149 | final params = <String, String>{ |
| 150 | 'api_key': apiKey, |
| 151 | 'ticker': cryptoCurrency.title.toLowerCase(), |
| 152 | 'name': cryptoCurrency.name, |
| 153 | }; |
| 154 | |
| 155 | final response = await ProxyWrapper().get( |
| 156 | clearnetUri: Uri.https(clearNetAuthority, coinPath, params), |
| 157 | onionUri: Uri.https(onionApiAuthority, coinPath, params), |
| 158 | ); |
| 159 | |
| 160 | final responseJSON = json.decode(response.body) as List<dynamic>; |
| 161 | if (response.statusCode != 200) { |
| 162 | throw Exception('Unexpected http status: ${response.statusCode}'); |
| 163 | } |
| 164 | |
| 165 | if (responseJSON.isEmpty) { |
| 166 | throw Exception('No data'); |
| 167 | } |
| 168 | |
| 169 | final coinJson = responseJSON.first as Map<String, dynamic>; |
| 170 | final minimum = coinJson['minimum'] as double; |
| 171 | final maximum = coinJson['maximum'] as double; |
| 172 | |
| 173 | if (fiatCurrency != null) { |
| 174 | return Limits( |
| 175 | min: double.tryParse((minimum * fiatRate).toStringAsFixed(2)), |
| 176 | max: double.tryParse((maximum * fiatRate).toStringAsFixed(2)), |
| 177 | ); |
| 178 | } |
| 179 | |
| 180 | return Limits( |
| 181 | min: minimum, |
| 182 | max: maximum, |
| 183 | ); |
| 184 | } |
| 185 | |
| 186 | String _networkFor(CryptoCurrency currency) { |
| 187 | switch (currency) { |
| 188 | case CryptoCurrency.usdt: |
| 189 | return CryptoCurrency.btc.title.toLowerCase(); |
| 190 | case CryptoCurrency.eth: |
| 191 | return 'ERC20'; |
| 192 | default: |
| 193 | return currency.tag != null ? _normalizeTag(currency.tag!) : 'Mainnet'; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | String _normalizeTag(String tag) { |
| 198 | switch (tag) { |
| 199 | case 'ETH': |
| 200 | return 'ERC20'; |
| 201 | default: |
| 202 | return tag.toLowerCase(); |
| 203 | } |
| 204 | } |
| 205 | } |