60 lines
2.4 KiB
C#
60 lines
2.4 KiB
C#
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using NBitcoin;
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using PalladiumWallet.Core.Chain;
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using PalladiumWallet.Core.Crypto;
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using PalladiumWallet.Core.Storage;
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namespace PalladiumWallet.Core.Wallet;
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/// <summary>
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/// Ponte documento wallet ↔ dominio (blueprint §4.5): dal file ricostruisce
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/// l'HdAccount giusto (da seed o watch-only da xpub). È l'embrione della
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/// factory dei tipi di wallet; crescerà con multisig e importati.
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/// </summary>
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public static class WalletLoader
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{
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public static ChainProfile ProfileOf(WalletDocument doc) =>
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ChainProfiles.For(Enum.Parse<NetKind>(doc.Network, ignoreCase: true));
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public static HdAccount ToAccount(WalletDocument doc)
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{
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var profile = ProfileOf(doc);
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var kind = Enum.Parse<ScriptKind>(doc.ScriptKind);
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var path = KeyPath.Parse(doc.AccountPath);
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if (doc.Mnemonic is { } words)
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{
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if (!Bip39.TryParse(words, out var mnemonic))
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throw new InvalidDataException("Mnemonica del file wallet non valida.");
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return HdAccount.FromSeed(Bip39.ToSeed(mnemonic!, doc.Passphrase), kind, profile, path);
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}
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if (!Slip132.TryDecodePublic(doc.AccountXpub, profile, out var xpub, out _))
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throw new InvalidDataException("Xpub del file wallet non valida per questa rete.");
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return HdAccount.FromAccountXpub(xpub!, kind, profile, path);
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}
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/// <summary>Crea il documento per un nuovo wallet da seed.</summary>
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public static (WalletDocument Doc, HdAccount Account) NewFromMnemonic(
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string words, string? passphrase, ScriptKind kind, ChainProfile profile, KeyPath? customPath = null)
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{
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if (!Bip39.TryParse(words, out var mnemonic))
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throw new InvalidDataException("Mnemonica non valida (parole o checksum errati).");
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var account = customPath is null
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? HdAccount.FromMnemonic(mnemonic!, passphrase, kind, profile)
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: HdAccount.FromSeed(Bip39.ToSeed(mnemonic!, passphrase), kind, profile, customPath);
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var doc = new WalletDocument
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{
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Network = profile.NetName,
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ScriptKind = kind.ToString(),
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Mnemonic = words.Trim(),
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Passphrase = passphrase,
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AccountPath = account.AccountPath.ToString(),
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AccountXpub = account.ToSlip132(),
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MasterFingerprint = Convert.ToHexString(account.MasterFingerprint.ToBytes()).ToLowerInvariant(),
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};
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return (doc, account);
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}
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}
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