v29.4-roots.4 · Commit 24: [PATCH 24/37] feat(qt): add guarded private key sweep dialog
src/wallet/interfaces.cpp
Before: src/wallet/interfaces.cpp · After: src/wallet/interfaces.cpp
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index 2880db261732c4bc44da32f644ec13bd1fc32581..10bbd25e6dc0e4eb6401c6b910de9a6db0c0cc6c 100644
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src/wallet/interfaces.cpp
CHANGED
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@@ -30,6 +30,10 @@
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#include <wallet/spend.h>
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#include <wallet/wallet.h>
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#include <key_io.h>
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#include <script/solver.h>
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#include <policy/policy.h>
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#include <memory>
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#include <string>
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#include <utility>
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@@ -46,6 +50,7 @@ using interfaces::WalletBalances;
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using interfaces::WalletLoader;
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using interfaces::WalletMigrationResult;
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using interfaces::WalletOrderForm;
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using interfaces::WalletSweepResult;
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using interfaces::WalletTx;
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using interfaces::WalletTxOut;
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using interfaces::WalletTxStatus;
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@@ -175,6 +180,48 @@ public:
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LOCK(m_wallet->cs_wallet);
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return m_wallet->IsMine(dest) & ISMINE_SPENDABLE;
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}
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util::Result<WalletSweepResult> sweepPrivateKey(const SecureString& private_key,
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const CTxDestination& destination,
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bool broadcast,
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const std::optional<uint256>& expected_txid) override
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{
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CKey key{DecodeSecret(std::string{private_key.begin(), private_key.end()})};
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if (!key.IsValid()) return util::Error{Untranslated("Invalid private key or wrong network")};
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const CPubKey pubkey{key.GetPubKey()};
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FlatSigningProvider provider;
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provider.keys.emplace(pubkey.GetID(), key);
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provider.pubkeys.emplace(pubkey.GetID(), pubkey);
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std::set<CScript> scan_objects{GetScriptForDestination(PKHash(pubkey))};
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if (pubkey.IsCompressed()) {
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const CScript witness{GetScriptForDestination(WitnessV0KeyHash(pubkey))};
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scan_objects.insert(witness);
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provider.scripts.emplace(CScriptID(witness), witness);
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scan_objects.insert(GetScriptForDestination(ScriptHash(witness)));
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}
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const CScript destination_script{GetScriptForDestination(destination)};
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{
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LOCK(m_wallet->cs_wallet);
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if (m_wallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) || !(m_wallet->IsMine(destination_script) & ISMINE_SPENDABLE)) {
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return util::Error{Untranslated("Destination is not controlled by this wallet")};
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}
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}
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std::map<COutPoint, Coin> coins;
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switch (m_wallet->chain().findScriptPubKeys(scan_objects, coins)) {
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case interfaces::ScanResult::SUCCESS: break;
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case interfaces::ScanResult::BUSY: return util::Error{Untranslated("UTXO scan already in progress")};
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case interfaces::ScanResult::ABORTED: return util::Error{Untranslated("UTXO scan aborted")};
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case interfaces::ScanResult::UNAVAILABLE: return util::Error{Untranslated("UTXO scan unavailable")};
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}
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auto swept{CreateSweepTransaction(*m_wallet, provider, coins, destination_script, broadcast ? SweepBroadcastFn{[&, expected_txid](const CTransactionRef& tx, std::string& error) {
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if (expected_txid && tx->GetHash() != *expected_txid) {
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error = "Sweep preview is stale; create a fresh preview";
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return false;
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}
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return m_wallet->chain().broadcastTransaction(tx, m_wallet->m_default_max_tx_fee, /*relay=*/true, error);
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}} : SweepBroadcastFn{})};
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if (!swept) return util::Error{util::ErrorString(swept)};
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return WalletSweepResult{swept->tx, swept->amount, swept->fee, coins.size(), GetVirtualTransactionSize(*swept->tx), broadcast};
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}
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bool haveWatchOnly() override
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{
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auto spk_man = m_wallet->GetLegacyScriptPubKeyMan();
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