forked from crypto-power/cryptopower
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Signed-off-by: Philemon Ukane <[email protected]>
- Loading branch information
1 parent
0a3850c
commit 25d80b5
Showing
12 changed files
with
507 additions
and
54 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| // This code is available on the terms of the project LICENSE.md file, and as | ||
| // terms of the BlueOak License. See: https://blueoakcouncil.org/license/1.0.0. | ||
|
|
||
| package btc | ||
|
|
||
| // Note: Most of the code here is a copy-pasta from: | ||
| // https://github.com/decred/dcrdex/blob/master/client/asset/btc/spv.go | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "decred.org/dcrdex/client/asset" | ||
| dexbtc "decred.org/dcrdex/client/asset/btc" | ||
| "github.com/btcsuite/btcd/btcec/v2" | ||
| "github.com/btcsuite/btcd/btcutil" | ||
| "github.com/btcsuite/btcd/chaincfg" | ||
| "github.com/btcsuite/btcd/chaincfg/chainhash" | ||
| "github.com/btcsuite/btcd/wire" | ||
| "github.com/btcsuite/btcwallet/waddrmgr" | ||
| "github.com/btcsuite/btcwallet/wallet" | ||
| "github.com/btcsuite/btcwallet/wallet/txauthor" | ||
| "github.com/btcsuite/btcwallet/wtxmgr" | ||
| ) | ||
|
|
||
| // DEXWallet wraps *wallet.Wallet and implements dexbtc.BTCWallet. | ||
| type DEXWallet struct { | ||
| *wallet.Wallet // Implements most of dexbtc.BTCWallet | ||
| asset *Asset | ||
| } | ||
|
|
||
| var _ dexbtc.BTCWallet = (*DEXWallet)(nil) | ||
|
|
||
| // NewDEXWallet returns a new *DEXWallet. | ||
| func NewDEXWallet(asset *Asset) *DEXWallet { | ||
| return &DEXWallet{ | ||
| Wallet: asset.Internal().BTC, | ||
| asset: asset, | ||
| } | ||
| } | ||
|
|
||
| // The below methods are not implemented by *wallet.Wallet, so must be | ||
| // implemented by the BTCWallet implementation. | ||
|
|
||
| func (dw *DEXWallet) WalletTransaction(txHash *chainhash.Hash) (*wtxmgr.TxDetails, error) { | ||
| details, err := wallet.UnstableAPI(dw.Wallet).TxDetails(txHash) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if details == nil { | ||
| return nil, dexbtc.WalletTransactionNotFound | ||
| } | ||
|
|
||
| return details, nil | ||
| } | ||
|
|
||
| func (dw *DEXWallet) SyncedTo() waddrmgr.BlockStamp { | ||
| return dw.Wallet.Manager.SyncedTo() | ||
| } | ||
|
|
||
| func (dw *DEXWallet) SignTx(tx *wire.MsgTx) error { | ||
| var prevPkScripts [][]byte | ||
| var inputValues []btcutil.Amount | ||
| for _, txIn := range tx.TxIn { | ||
| _, txOut, _, _, err := dw.Wallet.FetchInputInfo(&txIn.PreviousOutPoint) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| inputValues = append(inputValues, btcutil.Amount(txOut.Value)) | ||
| prevPkScripts = append(prevPkScripts, txOut.PkScript) | ||
| // Zero the previous witness and signature script or else | ||
| // AddAllInputScripts does some weird stuff. | ||
| txIn.SignatureScript = nil | ||
| txIn.Witness = nil | ||
| } | ||
| return txauthor.AddAllInputScripts(tx, prevPkScripts, inputValues, &secretSource{dw, dw.ChainParams()}) | ||
| } | ||
|
|
||
| func (dw *DEXWallet) BlockNotifications(ctx context.Context) <-chan *dexbtc.BlockNotification { | ||
| cl := dw.Wallet.NtfnServer.TransactionNotifications() | ||
| ch := make(chan *dexbtc.BlockNotification, 1) | ||
| go func() { | ||
| defer cl.Done() | ||
| for { | ||
| select { | ||
| case note := <-cl.C: | ||
| if len(note.AttachedBlocks) > 0 { | ||
| lastBlock := note.AttachedBlocks[len(note.AttachedBlocks)-1] | ||
| select { | ||
| case ch <- &dexbtc.BlockNotification{ | ||
| Hash: *lastBlock.Hash, | ||
| Height: lastBlock.Height, | ||
| }: | ||
| default: | ||
| } | ||
| } | ||
| case <-ctx.Done(): | ||
| return | ||
| } | ||
| } | ||
| }() | ||
| return ch | ||
| } | ||
|
|
||
| func (dw *DEXWallet) RescanAsync() error { | ||
| return dw.asset.rescanAsync() | ||
| } | ||
|
|
||
| func (dw *DEXWallet) ForceRescan() { | ||
| dw.asset.forceRescan() | ||
| } | ||
|
|
||
| func (dw *DEXWallet) Start() (dexbtc.SPVService, error) { | ||
| return dw.asset.chainClient, nil | ||
| } | ||
|
|
||
| func (dw *DEXWallet) Reconfigure(*asset.WalletConfig, string) (bool, error) { | ||
| return false, errors.New("Reconfigure not supported for Cyptopower btc wallet") | ||
| } | ||
|
|
||
| func (dw *DEXWallet) Birthday() time.Time { | ||
| return dw.Manager.Birthday() | ||
| } | ||
|
|
||
| func (dw *DEXWallet) Peers() ([]*asset.WalletPeer, error) { | ||
| peers := dw.asset.chainClient.CS.Peers() | ||
| var walletPeers []*asset.WalletPeer | ||
| for i := range peers { | ||
| p := peers[i] | ||
| walletPeers = append(walletPeers, &asset.WalletPeer{ | ||
| Addr: p.Addr(), | ||
| Connected: p.Connected(), | ||
| Source: asset.WalletDefault, | ||
| }) | ||
| } | ||
| return walletPeers, nil | ||
| } | ||
|
|
||
| func (dw *DEXWallet) AddPeer(address string) error { | ||
| dw.asset.SetSpecificPeer(address) | ||
| return nil | ||
| } | ||
|
|
||
| func (dw *DEXWallet) RemovePeer(address string) error { | ||
| dw.asset.RemoveSpecificPeer(address) | ||
| return nil | ||
| } | ||
|
|
||
| // secretSource is used to locate keys and redemption scripts while signing a | ||
| // transaction. secretSource satisfies the txauthor.SecretsSource interface. | ||
| type secretSource struct { | ||
| w *DEXWallet | ||
| chainParams *chaincfg.Params | ||
| } | ||
|
|
||
| // ChainParams returns the chain parameters. | ||
| func (s *secretSource) ChainParams() *chaincfg.Params { | ||
| return s.chainParams | ||
| } | ||
|
|
||
| // GetKey fetches a private key for the specified address. | ||
| func (s *secretSource) GetKey(addr btcutil.Address) (*btcec.PrivateKey, bool, error) { | ||
| ma, err := s.w.Wallet.AddressInfo(addr) | ||
| if err != nil { | ||
| return nil, false, err | ||
| } | ||
|
|
||
| mpka, ok := ma.(waddrmgr.ManagedPubKeyAddress) | ||
| if !ok { | ||
| e := fmt.Errorf("managed address type for %v is `%T` but "+ | ||
| "want waddrmgr.ManagedPubKeyAddress", addr, ma) | ||
| return nil, false, e | ||
| } | ||
|
|
||
| privKey, err := mpka.PrivKey() | ||
| if err != nil { | ||
| return nil, false, err | ||
| } | ||
| return privKey, ma.Compressed(), nil | ||
| } | ||
|
|
||
| // GetScript fetches the redemption script for the specified p2sh/p2wsh address. | ||
| func (s *secretSource) GetScript(addr btcutil.Address) ([]byte, error) { | ||
| ma, err := s.w.Wallet.AddressInfo(addr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| msa, ok := ma.(waddrmgr.ManagedScriptAddress) | ||
| if !ok { | ||
| e := fmt.Errorf("managed address type for %v is `%T` but "+ | ||
| "want waddrmgr.ManagedScriptAddress", addr, ma) | ||
| return nil, e | ||
| } | ||
| return msa.Script() | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.