| 1 | import 'dart:async'; |
| 2 | import 'dart:convert'; |
| 3 | |
| 4 | import 'package:blockchain_utils/blockchain_utils.dart'; |
| 5 | import 'package:cw_core/amount/money.dart'; |
| 6 | import 'package:cw_core/crypto_currency.dart'; |
| 7 | import 'package:cw_core/node.dart'; |
| 8 | import 'package:cw_core/utils/proxy_wrapper.dart'; |
| 9 | import 'package:cw_core/solana_rpc_http_service.dart'; |
| 10 | import 'package:cw_core/utils/print_verbose.dart'; |
| 11 | import 'package:cw_solana/pending_solana_transaction.dart'; |
| 12 | import 'package:cw_solana/solana_balance.dart'; |
| 13 | import 'package:cw_solana/solana_exceptions.dart'; |
| 14 | import 'package:cw_solana/solana_transaction_model.dart'; |
| 15 | import 'package:cw_core/spl_token.dart'; |
| 16 | import 'package:on_chain/solana/solana.dart'; |
| 17 | import 'package:on_chain/solana/src/instructions/associated_token_account/constant.dart'; |
| 18 | import 'package:on_chain/solana/src/models/pda/pda.dart'; |
| 19 | import 'package:on_chain/solana/src/rpc/models/models/confirmed_transaction_meta.dart'; |
| 20 | import '.secrets.g.dart' as secrets; |
| 21 | |
| 22 | /// Result object containing both parsed transactions and token mints |
| 23 | class TransactionFetchResult { |
| 24 | final List<SolanaTransactionModel> transactions; |
| 25 | final List<String> tokenMints; |
| 26 | |
| 27 | TransactionFetchResult({ |
| 28 | required this.transactions, |
| 29 | required this.tokenMints, |
| 30 | }); |
| 31 | } |
| 32 | |
| 33 | class TransactionSyncResult { |
| 34 | final List<SolanaTransactionModel> transactions; |
| 35 | final String? newestSignature; |
| 36 | |
| 37 | TransactionSyncResult({ |
| 38 | required this.transactions, |
| 39 | this.newestSignature, |
| 40 | }); |
| 41 | } |
| 42 | |
| 43 | class SolanaWalletClient { |
| 44 | // Minimum amount in SOL to consider a transaction valid (to filter spam) |
| 45 | static Money minValidAmount = Money.parse("0.00000003", CryptoCurrency.sol); |
| 46 | |
| 47 | static const int _signaturePageSize = 1000; |
| 48 | |
| 49 | late final client = ProxyWrapper().getHttpIOClient(); |
| 50 | SolanaRPC? _provider; |
| 51 | bool _isStopped = false; |
| 52 | |
| 53 | final Map<String, bool> _jupiterVerificationCache = {}; |
| 54 | |
| 55 | bool connect(Node node) { |
| 56 | try { |
| 57 | _isStopped = false; |
| 58 | String formattedUrl; |
| 59 | String protocolUsed = node.isSSL ? "https" : "http"; |
| 60 | |
| 61 | if (node.uriRaw == 'rpc.ankr.com') { |
| 62 | String ankrApiKey = secrets.ankrApiKey; |
| 63 | |
| 64 | formattedUrl = '$protocolUsed://${node.uriRaw}/$ankrApiKey'; |
| 65 | } else if (node.uriRaw == 'solana-mainnet.core.chainstack.com') { |
| 66 | String chainStackApiKey = secrets.chainStackApiKey; |
| 67 | |
| 68 | formattedUrl = '$protocolUsed://${node.uriRaw}/$chainStackApiKey'; |
| 69 | } else { |
| 70 | formattedUrl = '$protocolUsed://${node.uriRaw}'; |
| 71 | } |
| 72 | |
| 73 | _provider = SolanaRPC(SolanaRPCHTTPService(url: formattedUrl)); |
| 74 | |
| 75 | return true; |
| 76 | } catch (e) { |
| 77 | return false; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | Future<Money> getBalance(String walletAddress, {bool throwOnError = false}) async { |
| 82 | try { |
| 83 | final balance = await _provider!.requestWithContext( |
| 84 | SolanaRPCGetBalance(account: SolAddress(walletAddress)), |
| 85 | ); |
| 86 | return Money(balance.result, CryptoCurrency.sol); |
| 87 | } catch (_) { |
| 88 | if (throwOnError) { |
| 89 | rethrow; |
| 90 | } |
| 91 | return Money.zero(CryptoCurrency.sol); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | Future<List<TokenAccountResponse>?> getSPLTokenAccounts( |
| 96 | String mintAddress, String publicKey) async { |
| 97 | try { |
| 98 | final result = await _provider!.request( |
| 99 | SolanaRPCGetTokenAccountsByOwner( |
| 100 | account: SolAddress(publicKey), |
| 101 | mint: SolAddress(mintAddress), |
| 102 | commitment: Commitment.confirmed, |
| 103 | encoding: SolanaRPCEncoding.base64, |
| 104 | ), |
| 105 | ); |
| 106 | |
| 107 | return result; |
| 108 | } catch (e) { |
| 109 | return null; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | Future<SolanaBalance?> getSplTokenBalance(SPLToken token, String walletAddress, |
| 114 | {bool throwOnError = false}) async { |
| 115 | try { |
| 116 | // Fetch the token accounts (a token can have multiple accounts for various uses) |
| 117 | final tokenAccounts = await getSPLTokenAccounts(token.mintAddress, walletAddress); |
| 118 | |
| 119 | // Handle scenario where there is no token account |
| 120 | if (tokenAccounts == null || tokenAccounts.isEmpty) { |
| 121 | return null; |
| 122 | } |
| 123 | |
| 124 | // Sum raw amounts and ui amounts across all token accounts |
| 125 | var totalRaw = BigInt.zero; |
| 126 | |
| 127 | for (var tokenAccount in tokenAccounts) { |
| 128 | final tokenAmountResult = await _provider!.request( |
| 129 | SolanaRPCGetTokenAccountBalance(account: tokenAccount.pubkey), |
| 130 | ); |
| 131 | |
| 132 | final raw = BigInt.tryParse(tokenAmountResult.amount) ?? BigInt.zero; |
| 133 | totalRaw += raw; |
| 134 | } |
| 135 | |
| 136 | return SolanaBalance(Money(totalRaw, token)); |
| 137 | } catch (_) { |
| 138 | if (throwOnError) rethrow; |
| 139 | |
| 140 | return null; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | Future<Money> getFeeForMessage(String message, Commitment commitment) async { |
| 145 | try { |
| 146 | final feeForMessage = await _provider!.request( |
| 147 | SolanaRPCGetFeeForMessage(encodedMessage: message, commitment: commitment), |
| 148 | ); |
| 149 | |
| 150 | return Money(feeForMessage ?? BigInt.zero, CryptoCurrency.sol); |
| 151 | } catch (_) { |
| 152 | return Money.zero(CryptoCurrency.sol); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | Future<Money> getEstimatedFee(SolanaPublicKey publicKey, Commitment commitment) async { |
| 157 | final message = await _getMessageForNativeTransaction( |
| 158 | publicKey: publicKey, |
| 159 | destinationAddress: publicKey.toAddress().address, |
| 160 | lamports: Money(BigInt.from(1000000000), CryptoCurrency.sol), |
| 161 | commitment: commitment, |
| 162 | ); |
| 163 | |
| 164 | return _getFeeFromCompiledMessage(message, commitment); |
| 165 | } |
| 166 | |
| 167 | Future<List<SolanaTransactionModel>?> parseTransaction({ |
| 168 | VersionedTransactionResponse? txResponse, |
| 169 | required String walletAddress, |
| 170 | SPLToken? splToken, |
| 171 | }) async { |
| 172 | if (txResponse == null) return null; |
| 173 | |
| 174 | try { |
| 175 | final blockTime = txResponse.blockTime; |
| 176 | final meta = txResponse.meta; |
| 177 | final transaction = txResponse.transaction; |
| 178 | |
| 179 | if (meta == null || transaction == null) return null; |
| 180 | |
| 181 | final fee = meta.fee; |
| 182 | |
| 183 | final message = transaction.message; |
| 184 | final instructions = message.compiledInstructions; |
| 185 | |
| 186 | String signature = (txResponse.transaction?.signatures.isEmpty ?? true) |
| 187 | ? "" |
| 188 | : Base58Encoder.encode(txResponse.transaction!.signatures.first); |
| 189 | |
| 190 | // We need to check if this is a swap transaction (both native SOL and SPL token balance changes) |
| 191 | final isSwap = _isSwapTransaction(meta, message, walletAddress); |
| 192 | |
| 193 | if (isSwap) { |
| 194 | // We parse it separately, because we want to extract two separate transactions, the outgoing and incoming side of the swap |
| 195 | final swapTransactions = await _parseSwapTransaction( |
| 196 | message: message, |
| 197 | meta: meta, |
| 198 | fee: fee, |
| 199 | walletAddress: walletAddress, |
| 200 | signature: signature, |
| 201 | blockTime: blockTime, |
| 202 | instructions: instructions, |
| 203 | ); |
| 204 | |
| 205 | if (swapTransactions.isNotEmpty) return swapTransactions; |
| 206 | } |
| 207 | |
| 208 | for (final instruction in instructions) { |
| 209 | final programId = message.accountKeys[instruction.programIdIndex]; |
| 210 | |
| 211 | if (programId == SystemProgramConst.programId || |
| 212 | programId == ComputeBudgetConst.programId) { |
| 213 | // For native solana transactions |
| 214 | if (instruction.accounts.length < 2) continue; |
| 215 | |
| 216 | final transactionModel = await _parseNativeTransaction( |
| 217 | message: message, |
| 218 | meta: meta, |
| 219 | fee: fee, |
| 220 | walletAddress: walletAddress, |
| 221 | signature: signature, |
| 222 | blockTime: blockTime, |
| 223 | ); |
| 224 | |
| 225 | if (transactionModel != null) { |
| 226 | return [transactionModel]; |
| 227 | } |
| 228 | } else if (programId == SPLTokenProgramConst.tokenProgramId || |
| 229 | programId == SPLTokenProgramConst.token2022ProgramId) { |
| 230 | if (instruction.accounts.length < 2) continue; |
| 231 | |
| 232 | final transactionModel = await _parseSPLTokenTransaction( |
| 233 | message: message, |
| 234 | meta: meta, |
| 235 | fee: fee, |
| 236 | instruction: instruction, |
| 237 | walletAddress: walletAddress, |
| 238 | signature: signature, |
| 239 | blockTime: blockTime, |
| 240 | splToken: splToken, |
| 241 | ); |
| 242 | |
| 243 | if (transactionModel != null) { |
| 244 | return [transactionModel]; |
| 245 | } |
| 246 | } else if (programId == AssociatedTokenAccountProgramConst.associatedTokenProgramId) { |
| 247 | // For ATA program, we need to check if this is a create account transaction |
| 248 | // or if it's part of a normal token transfer |
| 249 | |
| 250 | // We skip this transaction if this is the only instruction (this means that it's a create account transaction) |
| 251 | if (instructions.length == 1) { |
| 252 | return null; |
| 253 | } |
| 254 | |
| 255 | // We look for a token transfer instruction in the same transaction |
| 256 | bool hasTokenTransfer = false; |
| 257 | for (final otherInstruction in instructions) { |
| 258 | final otherProgramId = message.accountKeys[otherInstruction.programIdIndex]; |
| 259 | if (otherProgramId == SPLTokenProgramConst.tokenProgramId || |
| 260 | otherProgramId == SPLTokenProgramConst.token2022ProgramId) { |
| 261 | hasTokenTransfer = true; |
| 262 | break; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | // If there's no token transfer instruction, it means this is just an ATA creation transaction |
| 267 | if (!hasTokenTransfer) { |
| 268 | return null; |
| 269 | } |
| 270 | |
| 271 | continue; |
| 272 | } else { |
| 273 | continue; |
| 274 | } |
| 275 | } |
| 276 | } catch (e, s) { |
| 277 | printV("Error parsing transaction: $e\n$s"); |
| 278 | } |
| 279 | |
| 280 | return null; |
| 281 | } |
| 282 | |
| 283 | /// Detects if a transaction is a swap by checking that the wallet both sends one asset and receives another. |
| 284 | /// |
| 285 | /// A simple token transfer is NOT a swap (wallet only sends or receives, not both). |
| 286 | bool _isSwapTransaction( |
| 287 | ConfirmedTransactionMeta meta, |
| 288 | VersionedMessage message, |
| 289 | String walletAddress, |
| 290 | ) { |
| 291 | final fee = meta.fee; |
| 292 | final preBalances = meta.preBalances; |
| 293 | final postBalances = meta.postBalances; |
| 294 | final accountKeys = message.accountKeys; |
| 295 | |
| 296 | bool walletSentSol = false; |
| 297 | bool walletReceivedSol = false; |
| 298 | |
| 299 | if (preBalances.isNotEmpty && postBalances.isNotEmpty) { |
| 300 | final maxLength = [ |
| 301 | accountKeys.length, |
| 302 | preBalances.length, |
| 303 | postBalances.length, |
| 304 | ].reduce((a, b) => a < b ? a : b); |
| 305 | |
| 306 | for (int i = 0; i < maxLength; i++) { |
| 307 | if (accountKeys[i].address != walletAddress) { |
| 308 | continue; |
| 309 | } |
| 310 | |
| 311 | final change = postBalances[i] - preBalances[i]; |
| 312 | |
| 313 | if (change > BigInt.zero) { |
| 314 | walletReceivedSol = true; |
| 315 | } else if (change < BigInt.zero) { |
| 316 | // Only count as sent if the decrease |
| 317 | // exceeds the fee (otherwise it's just fees). |
| 318 | final netDecrease = change.abs() - BigInt.from(fee); |
| 319 | if (netDecrease > BigInt.zero) { |
| 320 | walletSentSol = true; |
| 321 | } |
| 322 | } |
| 323 | break; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | bool walletSentToken = false; |
| 328 | bool walletReceivedToken = false; |
| 329 | |
| 330 | final preTokenBalances = meta.preTokenBalances; |
| 331 | final postTokenBalances = meta.postTokenBalances; |
| 332 | |
| 333 | if (preTokenBalances != null && postTokenBalances != null) { |
| 334 | // Check wallet-owned balances that exist in pre |
| 335 | for (final preBal in preTokenBalances) { |
| 336 | if (preBal.owner?.address != walletAddress) { |
| 337 | continue; |
| 338 | } |
| 339 | |
| 340 | final mint = preBal.mint.address; |
| 341 | final preAmt = preBal.uiTokenAmount.uiAmount ?? 0.0; |
| 342 | |
| 343 | double postAmt = preAmt; |
| 344 | for (final postBal in postTokenBalances) { |
| 345 | if (postBal.owner?.address == walletAddress && postBal.mint.address == mint) { |
| 346 | postAmt = postBal.uiTokenAmount.uiAmount ?? 0.0; |
| 347 | break; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | final diff = postAmt - preAmt; |
| 352 | if (diff < 0) { |
| 353 | walletSentToken = true; |
| 354 | } else if (diff > 0) { |
| 355 | walletReceivedToken = true; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | // Check for tokens the wallet received into |
| 360 | // a newly created ATA (no pre-balance entry). |
| 361 | for (final postBal in postTokenBalances) { |
| 362 | if (postBal.owner?.address != walletAddress) { |
| 363 | continue; |
| 364 | } |
| 365 | final postAmt = postBal.uiTokenAmount.uiAmount ?? 0.0; |
| 366 | if (postAmt <= 0) continue; |
| 367 | |
| 368 | final mint = postBal.mint.address; |
| 369 | final existsInPre = preTokenBalances.any( |
| 370 | (p) => p.owner?.address == walletAddress && p.mint.address == mint, |
| 371 | ); |
| 372 | if (!existsInPre) { |
| 373 | walletReceivedToken = true; |
| 374 | } |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | // A swap requires the wallet to both send and receive across different assets. |
| 379 | final walletSent = walletSentSol || walletSentToken; |
| 380 | final walletReceived = walletReceivedSol || walletReceivedToken; |
| 381 | return walletSent && walletReceived; |
| 382 | } |
| 383 | |
| 384 | static CryptoCurrency currencyForRawAmount(SPLToken? token, int mintDecimals) { |
| 385 | if (token != null && token.decimals == mintDecimals) { |
| 386 | return token; |
| 387 | } |
| 388 | |
| 389 | return CryptoCurrency( |
| 390 | name: (token?.title ?? "TOKEN").toLowerCase(), |
| 391 | title: token?.title ?? "TOKEN", |
| 392 | decimals: mintDecimals, |
| 393 | ); |
| 394 | } |
| 395 | |
| 396 | /// Parses a swap transaction and creates dual entries (outgoing and incoming) |
| 397 | Future<List<SolanaTransactionModel>> _parseSwapTransaction({ |
| 398 | required VersionedMessage message, |
| 399 | required ConfirmedTransactionMeta meta, |
| 400 | required int fee, |
| 401 | required String walletAddress, |
| 402 | required String signature, |
| 403 | required BigInt? blockTime, |
| 404 | required List<CompiledInstruction> instructions, |
| 405 | }) async { |
| 406 | final List<SolanaTransactionModel> swapTransactions = []; |
| 407 | |
| 408 | final preBalances = meta.preBalances; |
| 409 | final postBalances = meta.postBalances; |
| 410 | final accountKeys = message.accountKeys; |
| 411 | final preTokenBalances = meta.preTokenBalances; |
| 412 | final postTokenBalances = meta.postTokenBalances; |
| 413 | |
| 414 | final walletPaidFee = accountKeys.isNotEmpty && accountKeys.first.address == walletAddress; |
| 415 | final feeAdjustment = walletPaidFee ? BigInt.from(fee) : BigInt.zero; |
| 416 | |
| 417 | String? decreasedMintForWallet; |
| 418 | String? increasedMintForWallet; |
| 419 | |
| 420 | if (preTokenBalances != null && postTokenBalances != null) { |
| 421 | for (final preTokenBal in preTokenBalances) { |
| 422 | final owner = preTokenBal.owner?.address ?? ''; |
| 423 | if (owner != walletAddress) continue; |
| 424 | |
| 425 | final mint = preTokenBal.mint.address; |
| 426 | final preAmount = preTokenBal.uiTokenAmount.uiAmount ?? 0.0; |
| 427 | |
| 428 | double postAmount = preAmount; |
| 429 | for (final postTokenBal in postTokenBalances) { |
| 430 | final postOwner = postTokenBal.owner?.address ?? ''; |
| 431 | final postMint = postTokenBal.mint.address; |
| 432 | if (postOwner == walletAddress && postMint == mint) { |
| 433 | postAmount = postTokenBal.uiTokenAmount.uiAmount ?? 0.0; |
| 434 | break; |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | final diff = postAmount - preAmount; |
| 439 | if (diff < 0 && decreasedMintForWallet == null) { |
| 440 | decreasedMintForWallet = mint; |
| 441 | } else if (diff > 0 && increasedMintForWallet == null) { |
| 442 | increasedMintForWallet = mint; |
| 443 | } |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | final bool isSplToSplSwap = decreasedMintForWallet != null && |
| 448 | increasedMintForWallet != null && |
| 449 | decreasedMintForWallet != increasedMintForWallet; |
| 450 | |
| 451 | // Parse outgoing side (what was sent) |
| 452 | Money? outgoingMoney; |
| 453 | String? outgoingMintAddress; |
| 454 | String? outgoingFrom; |
| 455 | String? outgoingTo; |
| 456 | |
| 457 | // First we check if there are any native SOL balance changes for the wallet. |
| 458 | // For pure SPL → SPL swaps, SOL changes are just fees, so we ignore them. |
| 459 | if (!isSplToSplSwap && preBalances.isNotEmpty && postBalances.isNotEmpty) { |
| 460 | final maxLength = |
| 461 | accountKeys.length < preBalances.length ? accountKeys.length : preBalances.length; |
| 462 | |
| 463 | for (int i = 0; i < maxLength && i < postBalances.length; i++) { |
| 464 | final accountKey = accountKeys[i]; |
| 465 | final accountAddress = accountKey.address; |
| 466 | |
| 467 | if (accountAddress == walletAddress) { |
| 468 | final preBalance = preBalances[i]; |
| 469 | final postBalance = postBalances[i]; |
| 470 | |
| 471 | final balanceChange = preBalance - postBalance - feeAdjustment; |
| 472 | |
| 473 | if (balanceChange > BigInt.zero) { |
| 474 | // The wallet sent SOL |
| 475 | outgoingMoney = Money(balanceChange, CryptoCurrency.sol); |
| 476 | outgoingMintAddress = null; |
| 477 | outgoingFrom = walletAddress; |
| 478 | // We find the intermediate account or swap program account |
| 479 | if (instructions.isNotEmpty && instructions[0].accounts.isNotEmpty) { |
| 480 | final firstAccountIndex = instructions[0].accounts[0]; |
| 481 | if (firstAccountIndex < accountKeys.length) { |
| 482 | outgoingTo = accountKeys[firstAccountIndex].address; |
| 483 | } |
| 484 | } |
| 485 | outgoingTo ??= walletAddress; |
| 486 | break; |
| 487 | } |
| 488 | } |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | // If no SOL outgoing, we check if there are any SPL token balance changes for the wallet |
| 493 | if (outgoingMoney == null && preTokenBalances != null && postTokenBalances != null) { |
| 494 | for (final preTokenBal in preTokenBalances) { |
| 495 | final owner = preTokenBal.owner?.address ?? ''; |
| 496 | |
| 497 | if (owner == walletAddress) { |
| 498 | final mint = preTokenBal.mint.address; |
| 499 | // For SPL → SPL swaps, we only treat the decreased mint as outgoing |
| 500 | if (isSplToSplSwap && mint != decreasedMintForWallet) { |
| 501 | continue; |
| 502 | } |
| 503 | final preRaw = BigInt.tryParse(preTokenBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 504 | |
| 505 | // We find the corresponding post balance |
| 506 | for (final postTokenBal in postTokenBalances) { |
| 507 | final postOwner = postTokenBal.owner?.address ?? ''; |
| 508 | final postMint = postTokenBal.mint.address; |
| 509 | |
| 510 | if (postOwner == walletAddress && postMint == mint) { |
| 511 | final postRaw = BigInt.tryParse(postTokenBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 512 | final diff = preRaw - postRaw; |
| 513 | |
| 514 | if (diff > BigInt.zero) { |
| 515 | // The wallet sent tokens |
| 516 | final token = await getTokenInfo(mint); |
| 517 | outgoingMoney = |
| 518 | Money(diff, currencyForRawAmount(token, preTokenBal.uiTokenAmount.decimals)); |
| 519 | outgoingMintAddress = mint; |
| 520 | outgoingFrom = walletAddress; |
| 521 | // We find the intermediate account |
| 522 | if (instructions.isNotEmpty && instructions[0].accounts.isNotEmpty) { |
| 523 | final firstAccountIndex = instructions[0].accounts[0]; |
| 524 | if (firstAccountIndex < accountKeys.length) { |
| 525 | outgoingTo = accountKeys[firstAccountIndex].address; |
| 526 | } |
| 527 | } |
| 528 | outgoingTo ??= walletAddress; |
| 529 | break; |
| 530 | } |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | if (outgoingMoney != null) { |
| 535 | break; |
| 536 | } |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | // Parse incoming side (what was received) |
| 542 | Money? incomingMoney; |
| 543 | String? incomingMintAddress; |
| 544 | String? incomingFrom; |
| 545 | String? incomingTo; |
| 546 | |
| 547 | // We check if there are any native SOL balance changes for the wallet |
| 548 | if (preBalances.isNotEmpty && postBalances.isNotEmpty) { |
| 549 | final maxLength = |
| 550 | accountKeys.length < preBalances.length ? accountKeys.length : preBalances.length; |
| 551 | |
| 552 | for (int i = 0; i < maxLength && i < postBalances.length; i++) { |
| 553 | final accountKey = accountKeys[i]; |
| 554 | final accountAddress = accountKey.address; |
| 555 | |
| 556 | if (accountAddress == walletAddress) { |
| 557 | final preBalance = preBalances[i]; |
| 558 | final postBalance = postBalances[i]; |
| 559 | final balanceChange = postBalance - preBalance + feeAdjustment; |
| 560 | |
| 561 | if (balanceChange > BigInt.zero) { |
| 562 | // The wallet received SOL |
| 563 | incomingMoney = Money(balanceChange, CryptoCurrency.sol); |
| 564 | incomingMintAddress = null; |
| 565 | incomingTo = walletAddress; |
| 566 | // We find the intermediate account |
| 567 | if (instructions.isNotEmpty && instructions[0].accounts.isNotEmpty) { |
| 568 | final firstAccountIndex = instructions[0].accounts[0]; |
| 569 | if (firstAccountIndex < accountKeys.length) { |
| 570 | incomingFrom = accountKeys[firstAccountIndex].address; |
| 571 | } |
| 572 | } |
| 573 | incomingFrom ??= walletAddress; |
| 574 | break; |
| 575 | } |
| 576 | } |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | // If no SOL incoming, check SPL token incoming using ATA derivation |
| 581 | if (incomingMoney == null && preTokenBalances != null && postTokenBalances != null) { |
| 582 | // Collect all unique mints from token balances (excluding wrapped SOL) |
| 583 | final mints = <String>{}; |
| 584 | for (final tokenBal in preTokenBalances) { |
| 585 | final mint = tokenBal.mint.address; |
| 586 | if (mint != 'So11111111111111111111111111111111111111112') { |
| 587 | mints.add(mint); |
| 588 | } |
| 589 | } |
| 590 | for (final tokenBal in postTokenBalances) { |
| 591 | final mint = tokenBal.mint.address; |
| 592 | if (mint != 'So11111111111111111111111111111111111111112') { |
| 593 | mints.add(mint); |
| 594 | } |
| 595 | } |
| 596 | |
| 597 | // For each mint, we derive the wallet's ATA address and check for balance changes |
| 598 | for (final mint in mints) { |
| 599 | try { |
| 600 | final walletSolAddress = SolAddress(walletAddress); |
| 601 | final mintSolAddress = SolAddress(mint); |
| 602 | |
| 603 | final standardAta = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 604 | mint: mintSolAddress, |
| 605 | owner: walletSolAddress, |
| 606 | ); |
| 607 | final token2022Ata = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 608 | mint: mintSolAddress, |
| 609 | owner: walletSolAddress, |
| 610 | tokenProgramId: SPLTokenProgramConst.token2022ProgramId, |
| 611 | ); |
| 612 | final ataAddresses = [standardAta.address.address, token2022Ata.address.address]; |
| 613 | |
| 614 | // We check if either ATA address appears in the account keys |
| 615 | int? ataAccountIndex; |
| 616 | for (int i = 0; i < accountKeys.length; i++) { |
| 617 | final accountKey = accountKeys[i]; |
| 618 | if (ataAddresses.contains(accountKey.address)) { |
| 619 | ataAccountIndex = i; |
| 620 | break; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | // If ATA is in the transaction, we check for balance changes |
| 625 | if (ataAccountIndex != null) { |
| 626 | BigInt preRaw = BigInt.zero; |
| 627 | BigInt postRaw = BigInt.zero; |
| 628 | int? mintDecimals; |
| 629 | |
| 630 | // We find the pre balance |
| 631 | for (final preTokenBal in preTokenBalances) { |
| 632 | final accountIndex = preTokenBal.accountIndex; |
| 633 | final tokenMint = preTokenBal.mint.address; |
| 634 | if (accountIndex == ataAccountIndex && tokenMint == mint) { |
| 635 | preRaw = BigInt.tryParse(preTokenBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 636 | mintDecimals = preTokenBal.uiTokenAmount.decimals; |
| 637 | break; |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | // We find the post balance |
| 642 | for (final postTokenBal in postTokenBalances) { |
| 643 | final accountIndex = postTokenBal.accountIndex; |
| 644 | final tokenMint = postTokenBal.mint.address; |
| 645 | if (accountIndex == ataAccountIndex && tokenMint == mint) { |
| 646 | postRaw = BigInt.tryParse(postTokenBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 647 | mintDecimals = postTokenBal.uiTokenAmount.decimals; |
| 648 | break; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | final diff = postRaw - preRaw; |
| 653 | if (diff > BigInt.zero && mintDecimals != null) { |
| 654 | // The wallet received tokens |
| 655 | final token = await getTokenInfo(mint); |
| 656 | incomingMoney = Money(diff, currencyForRawAmount(token, mintDecimals)); |
| 657 | incomingMintAddress = mint; |
| 658 | incomingTo = walletAddress; |
| 659 | // We find the intermediate account |
| 660 | if (instructions.isNotEmpty && instructions[0].accounts.isNotEmpty) { |
| 661 | final firstAccountIndex = instructions[0].accounts[0]; |
| 662 | if (firstAccountIndex < accountKeys.length) { |
| 663 | incomingFrom = accountKeys[firstAccountIndex].address; |
| 664 | } |
| 665 | } |
| 666 | incomingFrom ??= walletAddress; |
| 667 | break; |
| 668 | } |
| 669 | } |
| 670 | } catch (e) { |
| 671 | // We skip if the ATA derivation fails |
| 672 | continue; |
| 673 | } |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | // Outgoing transaction model |
| 678 | if (outgoingMoney != null && outgoingFrom != null && outgoingTo != null) { |
| 679 | final outgoingId = |
| 680 | '${signature}_outgoing'; // We create a composite ID for the outgoing transaction |
| 681 | swapTransactions.add(SolanaTransactionModel( |
| 682 | isOutgoingTx: true, |
| 683 | from: outgoingFrom, |
| 684 | to: outgoingTo, |
| 685 | id: outgoingId, |
| 686 | amount: outgoingMoney, |
| 687 | programId: outgoingMintAddress == null |
| 688 | ? SystemProgramConst.programId.address |
| 689 | : SPLTokenProgramConst.tokenProgramId.address, |
| 690 | blockTimeInInt: blockTime?.toInt() ?? 0, |
| 691 | fee: Money.fromInt(fee, CryptoCurrency.sol), |
| 692 | )); |
| 693 | } |
| 694 | |
| 695 | // Incoming transaction model |
| 696 | if (incomingMoney != null && incomingFrom != null && incomingTo != null) { |
| 697 | final incomingId = |
| 698 | '${signature}_incoming'; // We create a composite ID for the incoming transaction |
| 699 | swapTransactions.add(SolanaTransactionModel( |
| 700 | isOutgoingTx: false, |
| 701 | from: incomingFrom, |
| 702 | to: incomingTo, |
| 703 | id: incomingId, |
| 704 | amount: incomingMoney, |
| 705 | programId: incomingMintAddress == null |
| 706 | ? SystemProgramConst.programId.address |
| 707 | : SPLTokenProgramConst.tokenProgramId.address, |
| 708 | blockTimeInInt: blockTime?.toInt() ?? 0, |
| 709 | fee: Money.zero(CryptoCurrency.sol), // Fee only charged on outgoing side |
| 710 | )); |
| 711 | } |
| 712 | |
| 713 | return swapTransactions; |
| 714 | } |
| 715 | |
| 716 | Future<SolanaTransactionModel?> _parseNativeTransaction({ |
| 717 | required VersionedMessage message, |
| 718 | required ConfirmedTransactionMeta meta, |
| 719 | required int fee, |
| 720 | required String walletAddress, |
| 721 | required String signature, |
| 722 | required BigInt? blockTime, |
| 723 | }) async { |
| 724 | final accountKeys = message.accountKeys; |
| 725 | final preBalances = meta.preBalances; |
| 726 | final postBalances = meta.postBalances; |
| 727 | |
| 728 | final maxLen = [ |
| 729 | accountKeys.length, |
| 730 | preBalances.length, |
| 731 | postBalances.length, |
| 732 | ].reduce((a, b) => a < b ? a : b); |
| 733 | |
| 734 | // Find the wallet's own balance change. |
| 735 | int walletIndex = -1; |
| 736 | for (int i = 0; i < maxLen; i++) { |
| 737 | if (accountKeys[i].address == walletAddress) { |
| 738 | walletIndex = i; |
| 739 | break; |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | if (walletIndex < 0) return null; |
| 744 | |
| 745 | final walletPre = preBalances[walletIndex]; |
| 746 | final walletPost = postBalances[walletIndex]; |
| 747 | // Positive = wallet lost SOL, negative = wallet gained. |
| 748 | final walletChange = walletPre - walletPost; |
| 749 | |
| 750 | final walletPaidFee = accountKeys.first.address == walletAddress; |
| 751 | |
| 752 | // Net transfer amount excluding the fee. |
| 753 | final netChange = walletPaidFee ? walletChange - BigInt.from(fee) : walletChange; |
| 754 | |
| 755 | final isOutgoing = netChange > BigInt.zero; |
| 756 | final amountLamports = Money(netChange.abs(), CryptoCurrency.sol); |
| 757 | |
| 758 | if (amountLamports < minValidAmount) return null; |
| 759 | |
| 760 | // Find the most likely receiver, the account that has the largest opposite balance change. |
| 761 | String? receiver; |
| 762 | BigInt bestChange = BigInt.zero; |
| 763 | |
| 764 | for (int i = 0; i < maxLen; i++) { |
| 765 | if (i == walletIndex) continue; |
| 766 | final change = postBalances[i] - preBalances[i]; |
| 767 | |
| 768 | if (isOutgoing && change > bestChange) { |
| 769 | bestChange = change; |
| 770 | receiver = accountKeys[i].address; |
| 771 | } else if (!isOutgoing && change < BigInt.zero && change.abs() > bestChange) { |
| 772 | bestChange = change.abs(); |
| 773 | receiver = accountKeys[i].address; |
| 774 | } |
| 775 | } |
| 776 | |
| 777 | if (receiver == null) return null; |
| 778 | |
| 779 | return SolanaTransactionModel( |
| 780 | isOutgoingTx: isOutgoing, |
| 781 | from: isOutgoing ? walletAddress : receiver, |
| 782 | to: isOutgoing ? receiver : walletAddress, |
| 783 | id: signature, |
| 784 | amount: amountLamports, |
| 785 | programId: SystemProgramConst.programId.address, |
| 786 | blockTimeInInt: blockTime?.toInt() ?? 0, |
| 787 | fee: Money.fromInt(fee, CryptoCurrency.sol), |
| 788 | ); |
| 789 | } |
| 790 | |
| 791 | Future<SolanaTransactionModel?> _parseSPLTokenTransaction({ |
| 792 | required VersionedMessage message, |
| 793 | required ConfirmedTransactionMeta meta, |
| 794 | required int fee, |
| 795 | required CompiledInstruction instruction, |
| 796 | required String walletAddress, |
| 797 | required String signature, |
| 798 | required BigInt? blockTime, |
| 799 | SPLToken? splToken, |
| 800 | }) async { |
| 801 | final preTokenBalances = meta.preTokenBalances; |
| 802 | final postTokenBalances = meta.postTokenBalances; |
| 803 | |
| 804 | final accountKeys = message.accountKeys; |
| 805 | final accounts = instruction.accounts; |
| 806 | |
| 807 | // TransferChecked has 4 accounts: |
| 808 | // [0] source, [1] mint, [2] destination, [3] owner |
| 809 | // Transfer has 3 accounts: |
| 810 | // [0] source, [1] destination, [2] owner |
| 811 | final isTransferChecked = accounts.length >= 4; |
| 812 | |
| 813 | final sourceAccountIndex = accounts[0]; |
| 814 | final destinationAccountIndex = isTransferChecked ? accounts[2] : accounts[1]; |
| 815 | |
| 816 | String? mintAddress; |
| 817 | if (isTransferChecked) { |
| 818 | mintAddress = accountKeys[accounts[1]].address; |
| 819 | } |
| 820 | |
| 821 | BigInt userPreRaw = BigInt.zero; |
| 822 | BigInt userPostRaw = BigInt.zero; |
| 823 | int? mintDecimals; |
| 824 | |
| 825 | if (preTokenBalances != null) { |
| 826 | for (final preBal in preTokenBalances) { |
| 827 | final idx = preBal.accountIndex; |
| 828 | if (idx == sourceAccountIndex || idx == destinationAccountIndex) { |
| 829 | if (preBal.owner?.address == walletAddress) { |
| 830 | if (mintAddress != null && preBal.mint.address != mintAddress) { |
| 831 | continue; |
| 832 | } |
| 833 | mintAddress ??= preBal.mint.address; |
| 834 | mintDecimals = preBal.uiTokenAmount.decimals; |
| 835 | userPreRaw = BigInt.tryParse(preBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 836 | break; |
| 837 | } |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | if (postTokenBalances != null) { |
| 843 | for (final postBal in postTokenBalances) { |
| 844 | final idx = postBal.accountIndex; |
| 845 | if (idx == sourceAccountIndex || idx == destinationAccountIndex) { |
| 846 | if (postBal.owner?.address == walletAddress) { |
| 847 | if (mintAddress != null && postBal.mint.address != mintAddress) { |
| 848 | continue; |
| 849 | } |
| 850 | mintAddress ??= postBal.mint.address; |
| 851 | mintDecimals = postBal.uiTokenAmount.decimals; |
| 852 | userPostRaw = BigInt.tryParse(postBal.uiTokenAmount.amount) ?? BigInt.zero; |
| 853 | break; |
| 854 | } |
| 855 | } |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | final diff = userPreRaw - userPostRaw; |
| 860 | |
| 861 | if (diff == BigInt.zero || mintDecimals == null) { |
| 862 | return null; |
| 863 | } |
| 864 | |
| 865 | final isOutgoing = diff > BigInt.zero; |
| 866 | |
| 867 | // Resolve sender/receiver from token balance owners |
| 868 | String? senderOwner; |
| 869 | String? receiverOwner; |
| 870 | |
| 871 | final allBalances = [ |
| 872 | ...?preTokenBalances, |
| 873 | ...?postTokenBalances, |
| 874 | ]; |
| 875 | |
| 876 | for (final bal in allBalances) { |
| 877 | if (mintAddress != null && bal.mint.address != mintAddress) { |
| 878 | continue; |
| 879 | } |
| 880 | if (bal.accountIndex == sourceAccountIndex) { |
| 881 | senderOwner ??= bal.owner?.address; |
| 882 | } |
| 883 | if (bal.accountIndex == destinationAccountIndex) { |
| 884 | receiverOwner ??= bal.owner?.address; |
| 885 | } |
| 886 | if (senderOwner != null && receiverOwner != null) { |
| 887 | break; |
| 888 | } |
| 889 | } |
| 890 | |
| 891 | final sender = senderOwner ?? accountKeys[sourceAccountIndex].address; |
| 892 | final receiver = receiverOwner ?? accountKeys[destinationAccountIndex].address; |
| 893 | |
| 894 | if (splToken == null && mintAddress != null) { |
| 895 | splToken = await getTokenInfo(mintAddress); |
| 896 | } |
| 897 | |
| 898 | return SolanaTransactionModel( |
| 899 | isOutgoingTx: isOutgoing, |
| 900 | from: sender, |
| 901 | to: receiver, |
| 902 | id: signature, |
| 903 | amount: Money(diff.abs(), currencyForRawAmount(splToken, mintDecimals)), |
| 904 | programId: SPLTokenProgramConst.tokenProgramId.address, |
| 905 | blockTimeInInt: blockTime?.toInt() ?? 0, |
| 906 | fee: Money.fromInt(fee, CryptoCurrency.sol), |
| 907 | ); |
| 908 | } |
| 909 | |
| 910 | /// Fetches a specific transaction by signature and parses it |
| 911 | /// It returns a TransactionFetchResult object containing both transactions and token mints |
| 912 | /// extracted from the transaction or null if the transaction is not found or cannot be parsed |
| 913 | Future<TransactionFetchResult?> fetchTransactionBySignature({ |
| 914 | required String signature, |
| 915 | required String walletAddress, |
| 916 | SPLToken? splToken, |
| 917 | }) async { |
| 918 | try { |
| 919 | final txResponse = await _provider!.request( |
| 920 | SolanaRPCGetTransaction( |
| 921 | transactionSignature: signature, |
| 922 | encoding: SolanaRPCEncoding.jsonParsed, |
| 923 | maxSupportedTransactionVersion: 1, |
| 924 | skipVerification: true, |
| 925 | ), |
| 926 | ); |
| 927 | |
| 928 | final versionedResponse = txResponse as VersionedTransactionResponse?; |
| 929 | if (versionedResponse == null) return null; |
| 930 | |
| 931 | final tokenMints = _extractTokenMintsFromMeta(versionedResponse.meta); |
| 932 | |
| 933 | final parsed = await parseTransaction( |
| 934 | txResponse: versionedResponse, |
| 935 | walletAddress: walletAddress, |
| 936 | splToken: splToken, |
| 937 | ); |
| 938 | |
| 939 | if (parsed == null) return null; |
| 940 | |
| 941 | return TransactionFetchResult( |
| 942 | transactions: parsed, |
| 943 | tokenMints: tokenMints, |
| 944 | ); |
| 945 | } catch (e) { |
| 946 | printV('Error fetching transaction by signature: $e'); |
| 947 | return null; |
| 948 | } |
| 949 | } |
| 950 | |
| 951 | /// Extracts token mint addresses from transaction metadata |
| 952 | /// It returns a list of unique token mint addresses (excluding wrapped SOL) |
| 953 | List<String> _extractTokenMintsFromMeta(ConfirmedTransactionMeta? meta) { |
| 954 | if (meta == null) return []; |
| 955 | |
| 956 | final preTokenBalances = meta.preTokenBalances; |
| 957 | final postTokenBalances = meta.postTokenBalances; |
| 958 | |
| 959 | final mints = <String>{}; |
| 960 | |
| 961 | if (preTokenBalances != null) { |
| 962 | for (final tokenBal in preTokenBalances) { |
| 963 | final mint = tokenBal.mint.address; |
| 964 | if (mint != 'So11111111111111111111111111111111111111112') { |
| 965 | mints.add(mint); |
| 966 | } |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | if (postTokenBalances != null) { |
| 971 | for (final tokenBal in postTokenBalances) { |
| 972 | final mint = tokenBal.mint.address; |
| 973 | if (mint != 'So11111111111111111111111111111111111111112') { |
| 974 | mints.add(mint); |
| 975 | } |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | return mints.toList(); |
| 980 | } |
| 981 | |
| 982 | Future<List<Map<String, dynamic>>> _getAllSignaturesSinceLastFetch( |
| 983 | SolAddress address, |
| 984 | String? until, |
| 985 | Commitment? commitment, |
| 986 | ) async { |
| 987 | final signatures = <Map<String, dynamic>>[]; |
| 988 | String? before; |
| 989 | |
| 990 | while (true) { |
| 991 | final currentPageSignatureResults = await _provider!.request( |
| 992 | SolanaRPCGetSignaturesForAddress( |
| 993 | account: address, |
| 994 | commitment: commitment, |
| 995 | until: until, |
| 996 | before: before, |
| 997 | limit: _signaturePageSize, |
| 998 | ), |
| 999 | ); |
| 1000 | |
| 1001 | if (currentPageSignatureResults.isEmpty) break; |
| 1002 | |
| 1003 | signatures.addAll(currentPageSignatureResults); |
| 1004 | |
| 1005 | if (currentPageSignatureResults.length < _signaturePageSize) break; |
| 1006 | |
| 1007 | if (until == null) break; |
| 1008 | |
| 1009 | final lastSignatureOnPage = currentPageSignatureResults.last['signature'] as String; |
| 1010 | |
| 1011 | if (lastSignatureOnPage == before) break; |
| 1012 | |
| 1013 | before = lastSignatureOnPage; |
| 1014 | } |
| 1015 | |
| 1016 | return signatures; |
| 1017 | } |
| 1018 | |
| 1019 | Future<TransactionSyncResult> fetchTransactions( |
| 1020 | SolAddress address, { |
| 1021 | SPLToken? splToken, |
| 1022 | Commitment? commitment, |
| 1023 | SolAddress? walletAddress, |
| 1024 | String? untilSignature, |
| 1025 | required void Function(List<SolanaTransactionModel>) onUpdate, |
| 1026 | }) async { |
| 1027 | final transactions = <SolanaTransactionModel>[]; |
| 1028 | |
| 1029 | try { |
| 1030 | final signatures = await _getAllSignaturesSinceLastFetch(address, untilSignature, commitment); |
| 1031 | |
| 1032 | if (signatures.isEmpty) return TransactionSyncResult(transactions: transactions); |
| 1033 | |
| 1034 | // The maximum concurrent batch size. |
| 1035 | const int batchSize = 10; |
| 1036 | |
| 1037 | bool hasFailures = false; |
| 1038 | |
| 1039 | for (int i = 0; i < signatures.length; i += batchSize) { |
| 1040 | if (_isStopped) return TransactionSyncResult(transactions: transactions); |
| 1041 | |
| 1042 | final batch = signatures.skip(i).take(batchSize).toList(); |
| 1043 | |
| 1044 | final batchResponses = await Future.wait(batch.map((signature) async { |
| 1045 | try { |
| 1046 | return await _provider!.request( |
| 1047 | SolanaRPCGetTransaction( |
| 1048 | transactionSignature: signature['signature'], |
| 1049 | encoding: SolanaRPCEncoding.jsonParsed, |
| 1050 | maxSupportedTransactionVersion: 1, |
| 1051 | skipVerification: true, |
| 1052 | ), |
| 1053 | ); |
| 1054 | } catch (e) { |
| 1055 | hasFailures = true; |
| 1056 | return null; |
| 1057 | } |
| 1058 | })); |
| 1059 | |
| 1060 | final versionedBatchResponses = batchResponses.whereType<VersionedTransactionResponse>(); |
| 1061 | |
| 1062 | final parsedTransactionsFutures = versionedBatchResponses.map((tx) => parseTransaction( |
| 1063 | txResponse: tx, |
| 1064 | splToken: splToken, |
| 1065 | walletAddress: walletAddress?.address ?? address.address, |
| 1066 | )); |
| 1067 | |
| 1068 | final parsedTransactionsLists = await Future.wait(parsedTransactionsFutures); |
| 1069 | |
| 1070 | final batchTransactions = <SolanaTransactionModel>[]; |
| 1071 | for (final parsedList in parsedTransactionsLists) { |
| 1072 | if (parsedList != null) { |
| 1073 | batchTransactions.addAll(parsedList); |
| 1074 | } |
| 1075 | } |
| 1076 | |
| 1077 | if (batchTransactions.isNotEmpty) { |
| 1078 | transactions.addAll(batchTransactions); |
| 1079 | onUpdate(batchTransactions); |
| 1080 | } |
| 1081 | |
| 1082 | if (i + batchSize < signatures.length) { |
| 1083 | await Future.delayed(const Duration(milliseconds: 100)); |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | return TransactionSyncResult( |
| 1088 | transactions: transactions, |
| 1089 | newestSignature: hasFailures ? null : signatures.first['signature'] as String, |
| 1090 | ); |
| 1091 | } catch (err, s) { |
| 1092 | printV('Error fetching transactions: $err \n$s'); |
| 1093 | return TransactionSyncResult(transactions: transactions); |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | final Map<String, ProgramDerivedAddress> associatedTokenAccountCache = {}; |
| 1098 | |
| 1099 | Future<TransactionSyncResult> getSPLTokenTransfers({ |
| 1100 | required String mintAddress, |
| 1101 | required SPLToken splToken, |
| 1102 | required SolanaPrivateKey privateKey, |
| 1103 | String? untilSignature, |
| 1104 | required void Function(List<SolanaTransactionModel>) onUpdate, |
| 1105 | }) async { |
| 1106 | final ownerWalletAddress = privateKey.publicKey().toAddress(); |
| 1107 | |
| 1108 | var associatedTokenAccount = associatedTokenAccountCache[mintAddress]; |
| 1109 | |
| 1110 | if (associatedTokenAccount == null) { |
| 1111 | try { |
| 1112 | associatedTokenAccount = await _findAssociatedTokenAccount( |
| 1113 | mintAddress: SolAddress(mintAddress), |
| 1114 | ownerAddress: ownerWalletAddress, |
| 1115 | ); |
| 1116 | } catch (e, s) { |
| 1117 | printV('$e \n $s'); |
| 1118 | } |
| 1119 | |
| 1120 | if (associatedTokenAccount == null) { |
| 1121 | return TransactionSyncResult(transactions: <SolanaTransactionModel>[]); |
| 1122 | } |
| 1123 | |
| 1124 | associatedTokenAccountCache[mintAddress] = associatedTokenAccount; |
| 1125 | } |
| 1126 | |
| 1127 | return fetchTransactions( |
| 1128 | associatedTokenAccount.address, |
| 1129 | splToken: splToken, |
| 1130 | walletAddress: ownerWalletAddress, |
| 1131 | untilSignature: untilSignature, |
| 1132 | onUpdate: onUpdate, |
| 1133 | ); |
| 1134 | } |
| 1135 | |
| 1136 | final Map<String, SPLToken> tokenInfoCache = {}; |
| 1137 | |
| 1138 | Future<SPLToken?> getTokenInfo(String mintAddress) async { |
| 1139 | final cached = tokenInfoCache[mintAddress]; |
| 1140 | if (cached != null) { |
| 1141 | return cached; |
| 1142 | } |
| 1143 | |
| 1144 | final fetched = await fetchSPLTokenInfo(mintAddress); |
| 1145 | if (fetched != null) { |
| 1146 | tokenInfoCache[mintAddress] = fetched; |
| 1147 | } |
| 1148 | |
| 1149 | return fetched; |
| 1150 | } |
| 1151 | |
| 1152 | Future<int?> _fetchMintDecimals(String mintAddress) async { |
| 1153 | try { |
| 1154 | final supply = await _provider!.request( |
| 1155 | SolanaRPCGetTokenSupply(account: SolAddress(mintAddress)), |
| 1156 | ); |
| 1157 | |
| 1158 | return supply.decimals; |
| 1159 | } catch (e) { |
| 1160 | printV("Could not read decimals for mint $mintAddress: ${e.toString()}"); |
| 1161 | return null; |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | Future<SPLToken?> fetchSPLTokenInfo(String mintAddress) async { |
| 1166 | try { |
| 1167 | final uri = Uri.https( |
| 1168 | 'solana-gateway.moralis.io', |
| 1169 | '/token/mainnet/$mintAddress/metadata', |
| 1170 | ); |
| 1171 | |
| 1172 | final response = await client.get( |
| 1173 | uri, |
| 1174 | headers: { |
| 1175 | "Accept": "application/json", |
| 1176 | "X-API-Key": secrets.moralisApiKey, |
| 1177 | }, |
| 1178 | ); |
| 1179 | |
| 1180 | if (response.statusCode != 200) return null; |
| 1181 | final decodedResponse = jsonDecode(response.body) as Map<String, dynamic>; |
| 1182 | |
| 1183 | final symbol = decodedResponse['symbol'] ?? ''; |
| 1184 | final name = decodedResponse['name'] ?? ''; |
| 1185 | final rawDecimals = decodedResponse["decimals"]; |
| 1186 | final iconPath = decodedResponse['logo'] ?? ''; |
| 1187 | |
| 1188 | final filteredTokenSymbol = symbol.replaceFirst(RegExp('^\\\$'), '').replaceAll('\u0000', ''); |
| 1189 | |
| 1190 | final reportedDecimals = |
| 1191 | rawDecimals is num ? rawDecimals.toInt() : int.tryParse("${rawDecimals ?? ""}"); |
| 1192 | |
| 1193 | final decimals = (reportedDecimals != null && reportedDecimals > 0) |
| 1194 | ? reportedDecimals |
| 1195 | : await _fetchMintDecimals(mintAddress); |
| 1196 | |
| 1197 | if (decimals == null) { |
| 1198 | return null; |
| 1199 | } |
| 1200 | |
| 1201 | return SPLToken( |
| 1202 | name: name, |
| 1203 | mint: symbol, |
| 1204 | symbol: filteredTokenSymbol, |
| 1205 | mintAddress: mintAddress, |
| 1206 | iconPath: iconPath, |
| 1207 | decimal: decimals, |
| 1208 | ); |
| 1209 | } catch (e, s) { |
| 1210 | printV('Error fetching token info: $e \n $s'); |
| 1211 | try { |
| 1212 | final programAddress = |
| 1213 | MetaplexTokenMetaDataProgramUtils.findMetadataPda(mint: SolAddress(mintAddress)); |
| 1214 | |
| 1215 | final token = await _provider!.request( |
| 1216 | SolanaRPCGetMetadataAccount( |
| 1217 | account: programAddress.address, |
| 1218 | commitment: Commitment.confirmed, |
| 1219 | ), |
| 1220 | ); |
| 1221 | |
| 1222 | if (token == null) return null; |
| 1223 | |
| 1224 | final metadata = token.data; |
| 1225 | |
| 1226 | String? iconPath; |
| 1227 | //TODO(Further explore fetching images) |
| 1228 | // try { |
| 1229 | // iconPath = await _client.getIconImageFromTokenUri(metadata.uri); |
| 1230 | // } catch (_) {} |
| 1231 | |
| 1232 | String filteredTokenSymbol = |
| 1233 | metadata.symbol.replaceFirst(RegExp('^\\\$'), '').replaceAll('\u0000', ''); |
| 1234 | |
| 1235 | final decimals = await _fetchMintDecimals(token.mint.address); |
| 1236 | |
| 1237 | if (decimals == null) { |
| 1238 | return null; |
| 1239 | } |
| 1240 | |
| 1241 | return SPLToken.fromMetadata( |
| 1242 | name: metadata.name, |
| 1243 | mint: metadata.symbol, |
| 1244 | symbol: filteredTokenSymbol, |
| 1245 | mintAddress: token.mint.address, |
| 1246 | decimal: decimals, |
| 1247 | iconPath: iconPath, |
| 1248 | ); |
| 1249 | } catch (_) {} |
| 1250 | |
| 1251 | return null; |
| 1252 | } |
| 1253 | } |
| 1254 | |
| 1255 | void stop() => _isStopped = true; |
| 1256 | |
| 1257 | SolanaRPC? get getSolanaProvider => _provider; |
| 1258 | |
| 1259 | Future<PendingSolanaTransaction> signSolanaTransaction({ |
| 1260 | required Money inputAmount, |
| 1261 | required String destinationAddress, |
| 1262 | required SolanaPrivateKey ownerPrivateKey, |
| 1263 | required bool isSendAll, |
| 1264 | required Money solBalance, |
| 1265 | String? tokenMint, |
| 1266 | List<String> references = const [], |
| 1267 | }) async { |
| 1268 | const commitment = Commitment.confirmed; |
| 1269 | |
| 1270 | if (tokenMint == null) { |
| 1271 | return _signNativeTokenTransaction( |
| 1272 | inputAmount: inputAmount, |
| 1273 | destinationAddress: destinationAddress, |
| 1274 | ownerPrivateKey: ownerPrivateKey, |
| 1275 | commitment: commitment, |
| 1276 | isSendAll: isSendAll, |
| 1277 | solBalance: solBalance, |
| 1278 | ); |
| 1279 | } else { |
| 1280 | return _signSPLTokenTransaction( |
| 1281 | tokenDecimals: inputAmount.currency.decimals, |
| 1282 | tokenMint: tokenMint, |
| 1283 | inputAmount: inputAmount, |
| 1284 | ownerPrivateKey: ownerPrivateKey, |
| 1285 | destinationAddress: destinationAddress, |
| 1286 | commitment: commitment, |
| 1287 | solBalance: solBalance, |
| 1288 | ); |
| 1289 | } |
| 1290 | } |
| 1291 | |
| 1292 | Future<SolAddress> _getLatestBlockhash(Commitment commitment) async { |
| 1293 | final latestBlockhash = await _provider!.request( |
| 1294 | const SolanaRPCGetLatestBlockhash(), |
| 1295 | ); |
| 1296 | |
| 1297 | return latestBlockhash.blockhash; |
| 1298 | } |
| 1299 | |
| 1300 | Future<Message> _getMessageForNativeTransaction({ |
| 1301 | required SolanaPublicKey publicKey, |
| 1302 | required String destinationAddress, |
| 1303 | required Money lamports, |
| 1304 | required Commitment commitment, |
| 1305 | }) async { |
| 1306 | final instructions = [ |
| 1307 | SystemProgram.transfer( |
| 1308 | from: publicKey.toAddress(), |
| 1309 | layout: SystemTransferLayout(lamports: lamports.amount), |
| 1310 | to: SolAddress(destinationAddress), |
| 1311 | ), |
| 1312 | ]; |
| 1313 | |
| 1314 | final latestBlockhash = await _getLatestBlockhash(commitment); |
| 1315 | |
| 1316 | return Message.compile( |
| 1317 | transactionInstructions: instructions, |
| 1318 | payer: publicKey.toAddress(), |
| 1319 | recentBlockhash: latestBlockhash, |
| 1320 | ); |
| 1321 | } |
| 1322 | |
| 1323 | Future<Money> _getFeeFromCompiledMessage(Message message, Commitment commitment) { |
| 1324 | final base64Message = base64Encode(message.serialize()); |
| 1325 | return getFeeForMessage(base64Message, commitment); |
| 1326 | } |
| 1327 | |
| 1328 | Future<Money> _getRentExemptionAmount(int space) async { |
| 1329 | final rent = await _provider!.request( |
| 1330 | SolanaRPCGetMinimumBalanceForRentExemption(size: space), |
| 1331 | ); |
| 1332 | |
| 1333 | return Money(rent, CryptoCurrency.sol); |
| 1334 | } |
| 1335 | |
| 1336 | Future<bool> hasSufficientFundsLeftForRent({ |
| 1337 | required Money totalOutflow, |
| 1338 | required Money solBalance, |
| 1339 | }) async { |
| 1340 | final rentBuffer = await _provider!.request( |
| 1341 | SolanaRPCGetMinimumBalanceForRentExemption(size: SolanaTokenAccountUtils.accountSize), |
| 1342 | ); |
| 1343 | |
| 1344 | return (solBalance - totalOutflow) > Money(rentBuffer, CryptoCurrency.sol); |
| 1345 | } |
| 1346 | |
| 1347 | Future<PendingSolanaTransaction> _signNativeTokenTransaction({ |
| 1348 | required Money inputAmount, |
| 1349 | required String destinationAddress, |
| 1350 | required SolanaPrivateKey ownerPrivateKey, |
| 1351 | required Commitment commitment, |
| 1352 | required bool isSendAll, |
| 1353 | required Money solBalance, |
| 1354 | }) async { |
| 1355 | final message = await _getMessageForNativeTransaction( |
| 1356 | publicKey: ownerPrivateKey.publicKey(), |
| 1357 | destinationAddress: destinationAddress, |
| 1358 | lamports: inputAmount, |
| 1359 | commitment: commitment, |
| 1360 | ); |
| 1361 | |
| 1362 | final latestBlockhash = await _getLatestBlockhash(commitment); |
| 1363 | |
| 1364 | final fee = await _getFeeFromCompiledMessage( |
| 1365 | message, |
| 1366 | commitment, |
| 1367 | ); |
| 1368 | |
| 1369 | if (!isSendAll) { |
| 1370 | final hasSufficientFundsLeft = await hasSufficientFundsLeftForRent( |
| 1371 | totalOutflow: inputAmount + fee, |
| 1372 | solBalance: solBalance, |
| 1373 | ); |
| 1374 | |
| 1375 | if (!hasSufficientFundsLeft) { |
| 1376 | throw SolanaSignNativeTokenTransactionRentException(); |
| 1377 | } |
| 1378 | } |
| 1379 | |
| 1380 | String serializedTransaction; |
| 1381 | if (isSendAll) { |
| 1382 | final updatedLamports = inputAmount - fee; |
| 1383 | |
| 1384 | if (updatedLamports.isNegative || updatedLamports.isZero) { |
| 1385 | throw SolanaTransactionWrongBalanceException(CryptoCurrency.sol); |
| 1386 | } |
| 1387 | |
| 1388 | final transaction = _constructNativeTransaction( |
| 1389 | ownerPrivateKey: ownerPrivateKey, |
| 1390 | destinationAddress: destinationAddress, |
| 1391 | latestBlockhash: latestBlockhash, |
| 1392 | lamports: updatedLamports, |
| 1393 | ); |
| 1394 | |
| 1395 | serializedTransaction = await _signTransactionInternal( |
| 1396 | ownerPrivateKey: ownerPrivateKey, |
| 1397 | transaction: transaction, |
| 1398 | ); |
| 1399 | } else { |
| 1400 | final transaction = _constructNativeTransaction( |
| 1401 | ownerPrivateKey: ownerPrivateKey, |
| 1402 | destinationAddress: destinationAddress, |
| 1403 | latestBlockhash: latestBlockhash, |
| 1404 | lamports: inputAmount, |
| 1405 | ); |
| 1406 | |
| 1407 | serializedTransaction = await _signTransactionInternal( |
| 1408 | ownerPrivateKey: ownerPrivateKey, |
| 1409 | transaction: transaction, |
| 1410 | ); |
| 1411 | } |
| 1412 | |
| 1413 | sendTx() async => await sendTransaction( |
| 1414 | serializedTransaction: serializedTransaction, |
| 1415 | commitment: commitment, |
| 1416 | ); |
| 1417 | |
| 1418 | return PendingSolanaTransaction( |
| 1419 | amount: inputAmount, |
| 1420 | serializedTransaction: serializedTransaction, |
| 1421 | destinationAddress: destinationAddress, |
| 1422 | sendTransaction: sendTx, |
| 1423 | fee: fee, |
| 1424 | ); |
| 1425 | } |
| 1426 | |
| 1427 | SolanaTransaction _constructNativeTransaction({ |
| 1428 | required SolanaPrivateKey ownerPrivateKey, |
| 1429 | required String destinationAddress, |
| 1430 | required SolAddress latestBlockhash, |
| 1431 | required Money lamports, |
| 1432 | }) { |
| 1433 | final owner = ownerPrivateKey.publicKey().toAddress(); |
| 1434 | |
| 1435 | final transferInstruction = SystemProgram.transfer( |
| 1436 | from: owner, |
| 1437 | layout: SystemTransferLayout(lamports: lamports.amount), |
| 1438 | to: SolAddress(destinationAddress), |
| 1439 | ); |
| 1440 | |
| 1441 | return SolanaTransaction( |
| 1442 | instructions: [transferInstruction], |
| 1443 | recentBlockhash: latestBlockhash, |
| 1444 | payerKey: ownerPrivateKey.publicKey().toAddress(), |
| 1445 | type: TransactionType.v0, |
| 1446 | ); |
| 1447 | } |
| 1448 | |
| 1449 | /// Creates a transferChecked instruction with a custom token program ID. |
| 1450 | /// This supports both standard SPL Token and Token-2022. |
| 1451 | TransactionInstruction _createTransferCheckedInstruction({ |
| 1452 | required SolAddress tokenProgramId, |
| 1453 | required SolAddress source, |
| 1454 | required SolAddress destination, |
| 1455 | required SolAddress mint, |
| 1456 | required SolAddress owner, |
| 1457 | required BigInt amount, |
| 1458 | required int decimals, |
| 1459 | }) { |
| 1460 | // TransferChecked instruction format: |
| 1461 | // - Instruction discriminator: 12 (u8) |
| 1462 | // - Amount: 8 bytes (u64, little-endian) |
| 1463 | // - Decimals: 1 byte (u8) |
| 1464 | |
| 1465 | // Convert BigInt to 8-byte little-endian array |
| 1466 | final amountBytes = <int>[]; |
| 1467 | var amountValue = amount.toUnsigned(64); |
| 1468 | for (int i = 0; i < 8; i++) { |
| 1469 | amountBytes.add((amountValue & BigInt.from(0xFF)).toInt()); |
| 1470 | amountValue = amountValue >> 8; |
| 1471 | } |
| 1472 | |
| 1473 | final instructionData = <int>[12, ...amountBytes, decimals]; |
| 1474 | |
| 1475 | // Account order for transferChecked: |
| 1476 | // 0. source (writable) |
| 1477 | // 1. mint (readonly) |
| 1478 | // 2. destination (writable) |
| 1479 | // 3. owner (signer) |
| 1480 | final accounts = [ |
| 1481 | AccountMeta( |
| 1482 | publicKey: source, |
| 1483 | isWritable: true, |
| 1484 | isSigner: false, |
| 1485 | ), |
| 1486 | AccountMeta( |
| 1487 | publicKey: mint, |
| 1488 | isWritable: false, |
| 1489 | isSigner: false, |
| 1490 | ), |
| 1491 | AccountMeta( |
| 1492 | publicKey: destination, |
| 1493 | isWritable: true, |
| 1494 | isSigner: false, |
| 1495 | ), |
| 1496 | AccountMeta( |
| 1497 | publicKey: owner, |
| 1498 | isWritable: false, |
| 1499 | isSigner: true, |
| 1500 | ), |
| 1501 | ]; |
| 1502 | |
| 1503 | return TransactionInstruction.fromBytes( |
| 1504 | programId: tokenProgramId, |
| 1505 | instructionBytes: instructionData, |
| 1506 | keys: accounts, |
| 1507 | ); |
| 1508 | } |
| 1509 | |
| 1510 | /// Gets the token program ID for a given mint address. |
| 1511 | /// Returns the standard SPL Token program ID if the mint account cannot be fetched. |
| 1512 | Future<SolAddress> _getTokenProgramId(SolAddress mintAddress) async { |
| 1513 | try { |
| 1514 | final mintAccountInfo = await _provider!.request( |
| 1515 | SolanaRPCGetAccountInfo( |
| 1516 | account: mintAddress, |
| 1517 | commitment: Commitment.confirmed, |
| 1518 | ), |
| 1519 | ); |
| 1520 | |
| 1521 | // Determine the token program ID from the mint account owner |
| 1522 | if (mintAccountInfo != null) { |
| 1523 | return mintAccountInfo.owner; |
| 1524 | } |
| 1525 | } catch (e) { |
| 1526 | // If we can't fetch mint info, default to standard SPL Token program |
| 1527 | printV('Warning: Could not fetch mint account info: $e'); |
| 1528 | } |
| 1529 | |
| 1530 | return SPLTokenProgramConst.tokenProgramId; |
| 1531 | } |
| 1532 | |
| 1533 | Future<ProgramDerivedAddress?> _findAssociatedTokenAccount({ |
| 1534 | required SolAddress ownerAddress, |
| 1535 | required SolAddress mintAddress, |
| 1536 | }) async { |
| 1537 | // Try with standard token program first (most common case) |
| 1538 | var associatedTokenAccount = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 1539 | mint: mintAddress, |
| 1540 | owner: ownerAddress, |
| 1541 | tokenProgramId: SPLTokenProgramConst.tokenProgramId, |
| 1542 | ); |
| 1543 | |
| 1544 | SolanaAccountInfo? accountInfo; |
| 1545 | try { |
| 1546 | accountInfo = await _provider!.request( |
| 1547 | SolanaRPCGetAccountInfo( |
| 1548 | account: associatedTokenAccount.address, |
| 1549 | commitment: Commitment.confirmed, |
| 1550 | ), |
| 1551 | ); |
| 1552 | } catch (e) { |
| 1553 | accountInfo = null; |
| 1554 | } |
| 1555 | |
| 1556 | // If account exists with standard program, return it |
| 1557 | if (accountInfo != null) return associatedTokenAccount; |
| 1558 | |
| 1559 | // if its not found under the standard program, then we try Token-2022, which derives a different address |
| 1560 | try { |
| 1561 | final token2022ProgramId = await _getTokenProgramId(mintAddress); |
| 1562 | if (token2022ProgramId.address != SPLTokenProgramConst.tokenProgramId.address) { |
| 1563 | associatedTokenAccount = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 1564 | mint: mintAddress, |
| 1565 | owner: ownerAddress, |
| 1566 | tokenProgramId: token2022ProgramId, |
| 1567 | ); |
| 1568 | |
| 1569 | try { |
| 1570 | accountInfo = await _provider!.request( |
| 1571 | SolanaRPCGetAccountInfo( |
| 1572 | account: associatedTokenAccount.address, |
| 1573 | commitment: Commitment.confirmed, |
| 1574 | ), |
| 1575 | ); |
| 1576 | if (accountInfo != null) return associatedTokenAccount; |
| 1577 | } catch (_) {} |
| 1578 | } |
| 1579 | } catch (_) {} |
| 1580 | |
| 1581 | return null; |
| 1582 | } |
| 1583 | |
| 1584 | Future<PendingSolanaTransaction> _signSPLTokenTransaction({ |
| 1585 | required int tokenDecimals, |
| 1586 | required String tokenMint, |
| 1587 | required Money inputAmount, |
| 1588 | required String destinationAddress, |
| 1589 | required SolanaPrivateKey ownerPrivateKey, |
| 1590 | required Commitment commitment, |
| 1591 | required Money solBalance, |
| 1592 | }) async { |
| 1593 | final mintAddress = SolAddress(tokenMint); |
| 1594 | final tokenProgramId = await _getTokenProgramId(mintAddress); |
| 1595 | |
| 1596 | ProgramDerivedAddress? associatedSenderAccount; |
| 1597 | SolAddress senderTokenProgramId = tokenProgramId; |
| 1598 | int? senderAccountSpace; |
| 1599 | |
| 1600 | try { |
| 1601 | associatedSenderAccount = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 1602 | mint: mintAddress, |
| 1603 | owner: ownerPrivateKey.publicKey().toAddress(), |
| 1604 | tokenProgramId: tokenProgramId, |
| 1605 | ); |
| 1606 | |
| 1607 | // Verify the account exists and get the actual program ID that owns it |
| 1608 | final accountInfo = await _provider!.request( |
| 1609 | SolanaRPCGetAccountInfo( |
| 1610 | account: associatedSenderAccount.address, |
| 1611 | commitment: Commitment.confirmed, |
| 1612 | ), |
| 1613 | ); |
| 1614 | |
| 1615 | if (accountInfo != null) { |
| 1616 | senderTokenProgramId = accountInfo.owner; |
| 1617 | senderAccountSpace = accountInfo.space; |
| 1618 | } else { |
| 1619 | associatedSenderAccount = null; |
| 1620 | } |
| 1621 | } catch (e) { |
| 1622 | associatedSenderAccount = null; |
| 1623 | } |
| 1624 | |
| 1625 | // If account doesn't exist with detected program ID, try standard token program as fallback |
| 1626 | if (associatedSenderAccount == null && |
| 1627 | tokenProgramId.address != SPLTokenProgramConst.tokenProgramId.address) { |
| 1628 | try { |
| 1629 | associatedSenderAccount = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 1630 | mint: mintAddress, |
| 1631 | owner: ownerPrivateKey.publicKey().toAddress(), |
| 1632 | tokenProgramId: SPLTokenProgramConst.tokenProgramId, |
| 1633 | ); |
| 1634 | |
| 1635 | final accountInfo = await _provider!.request( |
| 1636 | SolanaRPCGetAccountInfo( |
| 1637 | account: associatedSenderAccount.address, |
| 1638 | commitment: Commitment.confirmed, |
| 1639 | ), |
| 1640 | ); |
| 1641 | |
| 1642 | if (accountInfo != null) { |
| 1643 | senderTokenProgramId = accountInfo.owner; |
| 1644 | senderAccountSpace = accountInfo.space; |
| 1645 | } else { |
| 1646 | associatedSenderAccount = null; |
| 1647 | } |
| 1648 | } catch (_) { |
| 1649 | associatedSenderAccount = null; |
| 1650 | } |
| 1651 | } |
| 1652 | |
| 1653 | if (associatedSenderAccount == null) { |
| 1654 | throw SolanaNoAssociatedTokenAccountException( |
| 1655 | ownerPrivateKey.publicKey().toAddress().address, |
| 1656 | mintAddress.address, |
| 1657 | ); |
| 1658 | } |
| 1659 | |
| 1660 | final ProgramDerivedAddress associatedRecipientAccount; |
| 1661 | bool shouldCreateRecipientAccount = false; |
| 1662 | |
| 1663 | try { |
| 1664 | final recipientPDA = AssociatedTokenAccountProgramUtils.associatedTokenAccount( |
| 1665 | mint: mintAddress, |
| 1666 | owner: SolAddress(destinationAddress), |
| 1667 | tokenProgramId: senderTokenProgramId, |
| 1668 | ); |
| 1669 | |
| 1670 | SolanaAccountInfo? recipientInfo; |
| 1671 | try { |
| 1672 | recipientInfo = await _provider!.request( |
| 1673 | SolanaRPCGetAccountInfo( |
| 1674 | account: recipientPDA.address, |
| 1675 | commitment: Commitment.confirmed, |
| 1676 | ), |
| 1677 | ); |
| 1678 | } catch (_) { |
| 1679 | recipientInfo = null; |
| 1680 | } |
| 1681 | |
| 1682 | if (recipientInfo != null && recipientInfo.owner.address != senderTokenProgramId.address) { |
| 1683 | throw SolanaCreateAssociatedTokenAccountException( |
| 1684 | "Recipient token account is owned by ${recipientInfo.owner.address}", |
| 1685 | ); |
| 1686 | } |
| 1687 | |
| 1688 | shouldCreateRecipientAccount = recipientInfo == null; |
| 1689 | associatedRecipientAccount = recipientPDA; |
| 1690 | } on SolanaCreateAssociatedTokenAccountException { |
| 1691 | rethrow; |
| 1692 | } catch (e) { |
| 1693 | throw SolanaCreateAssociatedTokenAccountException(e.toString()); |
| 1694 | } |
| 1695 | |
| 1696 | // Create transferChecked instruction with the correct token program ID |
| 1697 | final transferInstructions = _createTransferCheckedInstruction( |
| 1698 | tokenProgramId: senderTokenProgramId, |
| 1699 | source: associatedSenderAccount.address, |
| 1700 | destination: associatedRecipientAccount.address, |
| 1701 | mint: mintAddress, |
| 1702 | owner: ownerPrivateKey.publicKey().toAddress(), |
| 1703 | amount: inputAmount.amount, |
| 1704 | decimals: tokenDecimals, |
| 1705 | ); |
| 1706 | |
| 1707 | final instructions = <TransactionInstruction>[ |
| 1708 | if (shouldCreateRecipientAccount) |
| 1709 | AssociatedTokenAccountProgram.associatedTokenAccountIdempotent( |
| 1710 | payer: ownerPrivateKey.publicKey().toAddress(), |
| 1711 | associatedToken: associatedRecipientAccount.address, |
| 1712 | owner: SolAddress(destinationAddress), |
| 1713 | mint: mintAddress, |
| 1714 | tokenProgramId: senderTokenProgramId, |
| 1715 | ), |
| 1716 | transferInstructions, |
| 1717 | ]; |
| 1718 | |
| 1719 | final latestBlockHash = await _getLatestBlockhash(commitment); |
| 1720 | |
| 1721 | final transaction = SolanaTransaction( |
| 1722 | payerKey: ownerPrivateKey.publicKey().toAddress(), |
| 1723 | instructions: instructions, |
| 1724 | recentBlockhash: latestBlockHash, |
| 1725 | ); |
| 1726 | |
| 1727 | final message = Message.compile( |
| 1728 | transactionInstructions: instructions, |
| 1729 | payer: ownerPrivateKey.publicKey().toAddress(), |
| 1730 | recentBlockhash: latestBlockHash, |
| 1731 | ); |
| 1732 | |
| 1733 | final fee = await _getFeeFromCompiledMessage(message, commitment); |
| 1734 | |
| 1735 | // The sender account exists by this point, so its space is set, and the recipient |
| 1736 | // account is the same size because it holds the same mint under the same program. |
| 1737 | final accountCreationCost = shouldCreateRecipientAccount |
| 1738 | ? await _getRentExemptionAmount(senderAccountSpace!) |
| 1739 | : Money.zero(CryptoCurrency.sol); |
| 1740 | |
| 1741 | final hasSufficientFundsLeft = await hasSufficientFundsLeftForRent( |
| 1742 | totalOutflow: accountCreationCost + fee, |
| 1743 | solBalance: solBalance, |
| 1744 | ); |
| 1745 | |
| 1746 | if (!hasSufficientFundsLeft) throw SolanaSignSPLTokenTransactionRentException(); |
| 1747 | |
| 1748 | final serializedTransaction = await _signTransactionInternal( |
| 1749 | ownerPrivateKey: ownerPrivateKey, |
| 1750 | transaction: transaction, |
| 1751 | ); |
| 1752 | |
| 1753 | sendTx() => sendTransaction( |
| 1754 | serializedTransaction: serializedTransaction, |
| 1755 | commitment: commitment, |
| 1756 | ); |
| 1757 | |
| 1758 | return PendingSolanaTransaction( |
| 1759 | amount: inputAmount, |
| 1760 | serializedTransaction: serializedTransaction, |
| 1761 | destinationAddress: destinationAddress, |
| 1762 | sendTransaction: sendTx, |
| 1763 | fee: fee, |
| 1764 | additionalCost: shouldCreateRecipientAccount ? accountCreationCost : null, |
| 1765 | ); |
| 1766 | } |
| 1767 | |
| 1768 | Future<String> _signTransactionInternal({ |
| 1769 | required SolanaPrivateKey ownerPrivateKey, |
| 1770 | required SolanaTransaction transaction, |
| 1771 | }) async { |
| 1772 | final ownerSignature = ownerPrivateKey.sign(transaction.serializeMessage()); |
| 1773 | |
| 1774 | transaction.addSignature(ownerPrivateKey.publicKey().toAddress(), ownerSignature); |
| 1775 | |
| 1776 | return transaction.serializeString(); |
| 1777 | } |
| 1778 | |
| 1779 | Future<String> sendTransaction( |
| 1780 | {required String serializedTransaction, required Commitment commitment}) => |
| 1781 | _provider!.request( |
| 1782 | SolanaRPCSendTransaction( |
| 1783 | encodedTransaction: serializedTransaction, |
| 1784 | commitment: commitment, |
| 1785 | ), |
| 1786 | ); |
| 1787 | |
| 1788 | Future<String?> getIconImageFromTokenUri(String uri) async { |
| 1789 | if (uri.isEmpty || uri == '…') return null; |
| 1790 | |
| 1791 | try { |
| 1792 | final client = ProxyWrapper().getHttpIOClient(); |
| 1793 | final response = await client.get(Uri.parse(uri)); |
| 1794 | |
| 1795 | final jsonResponse = json.decode(response.body) as Map<String, dynamic>; |
| 1796 | |
| 1797 | if (response.statusCode >= 200 && response.statusCode < 300) { |
| 1798 | return jsonResponse['image']; |
| 1799 | } else { |
| 1800 | return null; |
| 1801 | } |
| 1802 | } catch (e) { |
| 1803 | printV('Error occurred while fetching token image: \n${e.toString()}'); |
| 1804 | return null; |
| 1805 | } |
| 1806 | } |
| 1807 | |
| 1808 | Future<List<MoralisSolanaTokenBalance>> fetchWalletTokensFromMoralis( |
| 1809 | String address, |
| 1810 | ) async { |
| 1811 | try { |
| 1812 | if (secrets.moralisApiKey.isEmpty) { |
| 1813 | printV('Moralis API key is empty, cannot fetch wallet tokens'); |
| 1814 | return []; |
| 1815 | } |
| 1816 | |
| 1817 | final uri = Uri.https( |
| 1818 | 'solana-gateway.moralis.io', |
| 1819 | '/account/mainnet/$address/tokens', |
| 1820 | ); |
| 1821 | |
| 1822 | final response = await client.get( |
| 1823 | uri, |
| 1824 | headers: { |
| 1825 | "Accept": "application/json", |
| 1826 | "X-API-Key": secrets.moralisApiKey, |
| 1827 | }, |
| 1828 | ); |
| 1829 | |
| 1830 | if (response.statusCode < 200 || response.statusCode >= 300) { |
| 1831 | printV( |
| 1832 | 'Moralis Solana API returned status: ' |
| 1833 | '${response.statusCode}', |
| 1834 | ); |
| 1835 | return []; |
| 1836 | } |
| 1837 | |
| 1838 | final decodedResponse = jsonDecode(response.body) as List; |
| 1839 | |
| 1840 | final List<MoralisSolanaTokenBalance> tokens = []; |
| 1841 | |
| 1842 | for (final item in decodedResponse) { |
| 1843 | final tokenData = item as Map<String, dynamic>; |
| 1844 | |
| 1845 | final amountStr = tokenData['amount'] as String? ?? '0'; |
| 1846 | final amount = double.tryParse(amountStr) ?? 0.0; |
| 1847 | |
| 1848 | if (amount <= 0) continue; |
| 1849 | |
| 1850 | final mint = tokenData['mint'] as String? ?? ''; |
| 1851 | if (mint.isEmpty) continue; |
| 1852 | |
| 1853 | tokens.add( |
| 1854 | MoralisSolanaTokenBalance( |
| 1855 | mint: mint, |
| 1856 | amount: amount, |
| 1857 | ), |
| 1858 | ); |
| 1859 | } |
| 1860 | |
| 1861 | return tokens; |
| 1862 | } catch (e) { |
| 1863 | printV('Error fetching wallet tokens from Moralis: ${e.toString()}'); |
| 1864 | return []; |
| 1865 | } |
| 1866 | } |
| 1867 | |
| 1868 | Future<bool?> isTokenVerifiedOnJupiter(String mintAddress) async { |
| 1869 | if (_jupiterVerificationCache.containsKey(mintAddress)) { |
| 1870 | return _jupiterVerificationCache[mintAddress]; |
| 1871 | } |
| 1872 | |
| 1873 | try { |
| 1874 | final uri = Uri.https( |
| 1875 | "lite-api.jup.ag", |
| 1876 | "/tokens/v2/search", |
| 1877 | {"query": mintAddress}, |
| 1878 | ); |
| 1879 | |
| 1880 | final response = await client.get( |
| 1881 | uri, |
| 1882 | headers: {"Accept": "application/json"}, |
| 1883 | ); |
| 1884 | |
| 1885 | if (response.statusCode < 200 || response.statusCode >= 300) { |
| 1886 | printV("Jupiter token API returned status: ${response.statusCode}"); |
| 1887 | return null; |
| 1888 | } |
| 1889 | |
| 1890 | final decodedResponse = jsonDecode(response.body) as List; |
| 1891 | |
| 1892 | for (final item in decodedResponse) { |
| 1893 | final tokenData = item as Map<String, dynamic>; |
| 1894 | |
| 1895 | if (tokenData["id"] == mintAddress) { |
| 1896 | final isVerified = tokenData["isVerified"] as bool? ?? false; |
| 1897 | _jupiterVerificationCache[mintAddress] = isVerified; |
| 1898 | return isVerified; |
| 1899 | } |
| 1900 | } |
| 1901 | |
| 1902 | // this means Jupiter doesn't index this mint at all, so we can't say either |
| 1903 | return null; |
| 1904 | } catch (e) { |
| 1905 | printV("Error checking Jupiter verification: ${e.toString()}"); |
| 1906 | return null; |
| 1907 | } |
| 1908 | } |
| 1909 | } |
| 1910 | |
| 1911 | class MoralisSolanaTokenBalance { |
| 1912 | final String mint; |
| 1913 | final double amount; |
| 1914 | |
| 1915 | const MoralisSolanaTokenBalance({ |
| 1916 | required this.mint, |
| 1917 | required this.amount, |
| 1918 | }); |
| 1919 | } |