Line data Source code
1 : // Copyright (c) 2009-2010 Satoshi Nakamoto
2 : // Copyright (c) 2009-2020 The Bitcoin Core developers
3 : // Distributed under the MIT software license, see the accompanying
4 : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 :
6 : #include <wallet/wallet.h>
7 :
8 : #include <chain.h>
9 : #include <consensus/consensus.h>
10 : #include <consensus/validation.h>
11 : #include <fs.h>
12 : #include <interfaces/chain.h>
13 : #include <interfaces/wallet.h>
14 : #include <key.h>
15 : #include <key_io.h>
16 : #include <optional.h>
17 : #include <policy/fees.h>
18 : #include <policy/policy.h>
19 : #include <primitives/block.h>
20 : #include <primitives/transaction.h>
21 : #include <script/descriptor.h>
22 : #include <script/script.h>
23 : #include <script/signingprovider.h>
24 : #include <txmempool.h>
25 : #include <util/bip32.h>
26 : #include <util/check.h>
27 : #include <util/error.h>
28 : #include <util/fees.h>
29 : #include <util/moneystr.h>
30 : #include <util/rbf.h>
31 : #include <util/string.h>
32 : #include <util/translation.h>
33 : #include <wallet/coincontrol.h>
34 : #include <wallet/fees.h>
35 :
36 : #include <univalue.h>
37 :
38 : #include <algorithm>
39 : #include <assert.h>
40 :
41 : #include <boost/algorithm/string/replace.hpp>
42 :
43 : using interfaces::FoundBlock;
44 :
45 650 : const std::map<uint64_t,std::string> WALLET_FLAG_CAVEATS{
46 650 : {WALLET_FLAG_AVOID_REUSE,
47 : "You need to rescan the blockchain in order to correctly mark used "
48 : "destinations in the past. Until this is done, some destinations may "
49 : "be considered unused, even if the opposite is the case."
50 : },
51 : };
52 :
53 : static const size_t OUTPUT_GROUP_MAX_ENTRIES = 10;
54 :
55 650 : static RecursiveMutex cs_wallets;
56 650 : static std::vector<std::shared_ptr<CWallet>> vpwallets GUARDED_BY(cs_wallets);
57 650 : static std::list<LoadWalletFn> g_load_wallet_fns GUARDED_BY(cs_wallets);
58 :
59 4 : bool AddWalletSetting(interfaces::Chain& chain, const std::string& wallet_name)
60 : {
61 4 : util::SettingsValue setting_value = chain.getRwSetting("wallet");
62 4 : if (!setting_value.isArray()) setting_value.setArray();
63 10 : for (const util::SettingsValue& value : setting_value.getValues()) {
64 6 : if (value.isStr() && value.get_str() == wallet_name) return true;
65 6 : }
66 4 : setting_value.push_back(wallet_name);
67 4 : return chain.updateRwSetting("wallet", setting_value);
68 4 : }
69 :
70 7 : bool RemoveWalletSetting(interfaces::Chain& chain, const std::string& wallet_name)
71 : {
72 7 : util::SettingsValue setting_value = chain.getRwSetting("wallet");
73 7 : if (!setting_value.isArray()) return true;
74 7 : util::SettingsValue new_value(util::SettingsValue::VARR);
75 25 : for (const util::SettingsValue& value : setting_value.getValues()) {
76 18 : if (!value.isStr() || value.get_str() != wallet_name) new_value.push_back(value);
77 : }
78 7 : if (new_value.size() == setting_value.size()) return true;
79 3 : return chain.updateRwSetting("wallet", new_value);
80 7 : }
81 :
82 1199 : static void UpdateWalletSetting(interfaces::Chain& chain,
83 : const std::string& wallet_name,
84 : Optional<bool> load_on_startup,
85 : std::vector<bilingual_str>& warnings)
86 : {
87 1199 : if (load_on_startup == nullopt) return;
88 11 : if (load_on_startup.get() && !AddWalletSetting(chain, wallet_name)) {
89 0 : warnings.emplace_back(Untranslated("Wallet load on startup setting could not be updated, so wallet may not be loaded next node startup."));
90 11 : } else if (!load_on_startup.get() && !RemoveWalletSetting(chain, wallet_name)) {
91 0 : warnings.emplace_back(Untranslated("Wallet load on startup setting could not be updated, so wallet may still be loaded next node startup."));
92 0 : }
93 1199 : }
94 :
95 726 : bool AddWallet(const std::shared_ptr<CWallet>& wallet)
96 : {
97 726 : LOCK(cs_wallets);
98 726 : assert(wallet);
99 726 : std::vector<std::shared_ptr<CWallet>>::const_iterator i = std::find(vpwallets.begin(), vpwallets.end(), wallet);
100 726 : if (i != vpwallets.end()) return false;
101 726 : vpwallets.push_back(wallet);
102 726 : wallet->ConnectScriptPubKeyManNotifiers();
103 726 : return true;
104 726 : }
105 :
106 726 : bool RemoveWallet(const std::shared_ptr<CWallet>& wallet, Optional<bool> load_on_start, std::vector<bilingual_str>& warnings)
107 : {
108 726 : assert(wallet);
109 :
110 726 : interfaces::Chain& chain = wallet->chain();
111 726 : std::string name = wallet->GetName();
112 :
113 : // Unregister with the validation interface which also drops shared ponters.
114 726 : wallet->m_chain_notifications_handler.reset();
115 726 : LOCK(cs_wallets);
116 726 : std::vector<std::shared_ptr<CWallet>>::iterator i = std::find(vpwallets.begin(), vpwallets.end(), wallet);
117 726 : if (i == vpwallets.end()) return false;
118 726 : vpwallets.erase(i);
119 :
120 : // Write the wallet setting
121 726 : UpdateWalletSetting(chain, name, load_on_start, warnings);
122 :
123 726 : return true;
124 726 : }
125 :
126 3 : bool RemoveWallet(const std::shared_ptr<CWallet>& wallet, Optional<bool> load_on_start)
127 : {
128 3 : std::vector<bilingual_str> warnings;
129 3 : return RemoveWallet(wallet, load_on_start, warnings);
130 3 : }
131 :
132 56273 : std::vector<std::shared_ptr<CWallet>> GetWallets()
133 : {
134 56273 : LOCK(cs_wallets);
135 56273 : return vpwallets;
136 56273 : }
137 :
138 1818 : std::shared_ptr<CWallet> GetWallet(const std::string& name)
139 : {
140 1818 : LOCK(cs_wallets);
141 5948 : for (const std::shared_ptr<CWallet>& wallet : vpwallets) {
142 4130 : if (wallet->GetName() == name) return wallet;
143 2326 : }
144 14 : return nullptr;
145 1818 : }
146 :
147 1 : std::unique_ptr<interfaces::Handler> HandleLoadWallet(LoadWalletFn load_wallet)
148 : {
149 1 : LOCK(cs_wallets);
150 1 : auto it = g_load_wallet_fns.emplace(g_load_wallet_fns.end(), std::move(load_wallet));
151 2 : return interfaces::MakeHandler([it] { LOCK(cs_wallets); g_load_wallet_fns.erase(it); });
152 1 : }
153 :
154 650 : static Mutex g_loading_wallet_mutex;
155 650 : static Mutex g_wallet_release_mutex;
156 650 : static std::condition_variable g_wallet_release_cv;
157 650 : static std::set<std::string> g_loading_wallet_set GUARDED_BY(g_loading_wallet_mutex);
158 650 : static std::set<std::string> g_unloading_wallet_set GUARDED_BY(g_wallet_release_mutex);
159 :
160 : // Custom deleter for shared_ptr<CWallet>.
161 733 : static void ReleaseWallet(CWallet* wallet)
162 : {
163 733 : const std::string name = wallet->GetName();
164 733 : wallet->WalletLogPrintf("Releasing wallet\n");
165 733 : wallet->Flush();
166 733 : delete wallet;
167 : // Wallet is now released, notify UnloadWallet, if any.
168 : {
169 733 : LOCK(g_wallet_release_mutex);
170 733 : if (g_unloading_wallet_set.erase(name) == 0) {
171 : // UnloadWallet was not called for this wallet, all done.
172 6 : return;
173 : }
174 733 : }
175 727 : g_wallet_release_cv.notify_all();
176 733 : }
177 :
178 727 : void UnloadWallet(std::shared_ptr<CWallet>&& wallet)
179 : {
180 : // Mark wallet for unloading.
181 727 : const std::string name = wallet->GetName();
182 : {
183 727 : LOCK(g_wallet_release_mutex);
184 727 : auto it = g_unloading_wallet_set.insert(name);
185 727 : assert(it.second);
186 727 : }
187 : // The wallet can be in use so it's not possible to explicitly unload here.
188 : // Notify the unload intent so that all remaining shared pointers are
189 : // released.
190 727 : wallet->NotifyUnload();
191 :
192 : // Time to ditch our shared_ptr and wait for ReleaseWallet call.
193 727 : wallet.reset();
194 : {
195 727 : WAIT_LOCK(g_wallet_release_mutex, lock);
196 739 : while (g_unloading_wallet_set.count(name) == 1) {
197 12 : g_wallet_release_cv.wait(lock);
198 : }
199 727 : }
200 727 : }
201 :
202 : namespace {
203 131 : std::shared_ptr<CWallet> LoadWalletInternal(interfaces::Chain& chain, const std::string& name, Optional<bool> load_on_start, const DatabaseOptions& options, DatabaseStatus& status, bilingual_str& error, std::vector<bilingual_str>& warnings)
204 : {
205 : try {
206 131 : std::unique_ptr<WalletDatabase> database = MakeWalletDatabase(name, options, status, error);
207 131 : if (!database) {
208 14 : error = Untranslated("Wallet file verification failed.") + Untranslated(" ") + error;
209 14 : return nullptr;
210 : }
211 :
212 117 : std::shared_ptr<CWallet> wallet = CWallet::Create(chain, name, std::move(database), options.create_flags, error, warnings);
213 113 : if (!wallet) {
214 0 : error = Untranslated("Wallet loading failed.") + Untranslated(" ") + error;
215 0 : status = DatabaseStatus::FAILED_LOAD;
216 0 : return nullptr;
217 : }
218 113 : AddWallet(wallet);
219 113 : wallet->postInitProcess();
220 :
221 : // Write the wallet setting
222 113 : UpdateWalletSetting(chain, name, load_on_start, warnings);
223 :
224 113 : return wallet;
225 131 : } catch (const std::runtime_error& e) {
226 4 : error = Untranslated(e.what());
227 4 : status = DatabaseStatus::FAILED_LOAD;
228 4 : return nullptr;
229 4 : }
230 139 : }
231 : } // namespace
232 :
233 135 : std::shared_ptr<CWallet> LoadWallet(interfaces::Chain& chain, const std::string& name, Optional<bool> load_on_start, const DatabaseOptions& options, DatabaseStatus& status, bilingual_str& error, std::vector<bilingual_str>& warnings)
234 : {
235 270 : auto result = WITH_LOCK(g_loading_wallet_mutex, return g_loading_wallet_set.insert(name));
236 135 : if (!result.second) {
237 4 : error = Untranslated("Wallet already being loading.");
238 4 : status = DatabaseStatus::FAILED_LOAD;
239 4 : return nullptr;
240 : }
241 131 : auto wallet = LoadWalletInternal(chain, name, load_on_start, options, status, error, warnings);
242 262 : WITH_LOCK(g_loading_wallet_mutex, g_loading_wallet_set.erase(result.first));
243 131 : return wallet;
244 135 : }
245 :
246 364 : std::shared_ptr<CWallet> CreateWallet(interfaces::Chain& chain, const std::string& name, Optional<bool> load_on_start, DatabaseOptions& options, DatabaseStatus& status, bilingual_str& error, std::vector<bilingual_str>& warnings)
247 : {
248 364 : uint64_t wallet_creation_flags = options.create_flags;
249 364 : const SecureString& passphrase = options.create_passphrase;
250 :
251 364 : if (wallet_creation_flags & WALLET_FLAG_DESCRIPTORS) options.require_format = DatabaseFormat::SQLITE;
252 :
253 : // Indicate that the wallet is actually supposed to be blank and not just blank to make it encrypted
254 364 : bool create_blank = (wallet_creation_flags & WALLET_FLAG_BLANK_WALLET);
255 :
256 : // Born encrypted wallets need to be created blank first.
257 364 : if (!passphrase.empty()) {
258 7 : wallet_creation_flags |= WALLET_FLAG_BLANK_WALLET;
259 7 : }
260 :
261 : // Wallet::Verify will check if we're trying to create a wallet with a duplicate name.
262 364 : std::unique_ptr<WalletDatabase> database = MakeWalletDatabase(name, options, status, error);
263 364 : if (!database) {
264 2 : error = Untranslated("Wallet file verification failed.") + Untranslated(" ") + error;
265 2 : status = DatabaseStatus::FAILED_VERIFY;
266 2 : return nullptr;
267 : }
268 :
269 : // Do not allow a passphrase when private keys are disabled
270 362 : if (!passphrase.empty() && (wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
271 2 : error = Untranslated("Passphrase provided but private keys are disabled. A passphrase is only used to encrypt private keys, so cannot be used for wallets with private keys disabled.");
272 2 : status = DatabaseStatus::FAILED_CREATE;
273 2 : return nullptr;
274 : }
275 :
276 : // Make the wallet
277 360 : std::shared_ptr<CWallet> wallet = CWallet::Create(chain, name, std::move(database), wallet_creation_flags, error, warnings);
278 360 : if (!wallet) {
279 0 : error = Untranslated("Wallet creation failed.") + Untranslated(" ") + error;
280 0 : status = DatabaseStatus::FAILED_CREATE;
281 0 : return nullptr;
282 : }
283 :
284 : // Encrypt the wallet
285 360 : if (!passphrase.empty() && !(wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
286 5 : if (!wallet->EncryptWallet(passphrase)) {
287 0 : error = Untranslated("Error: Wallet created but failed to encrypt.");
288 0 : status = DatabaseStatus::FAILED_ENCRYPT;
289 0 : return nullptr;
290 : }
291 5 : if (!create_blank) {
292 : // Unlock the wallet
293 3 : if (!wallet->Unlock(passphrase)) {
294 0 : error = Untranslated("Error: Wallet was encrypted but could not be unlocked");
295 0 : status = DatabaseStatus::FAILED_ENCRYPT;
296 0 : return nullptr;
297 : }
298 :
299 : // Set a seed for the wallet
300 : {
301 3 : LOCK(wallet->cs_wallet);
302 3 : if (wallet->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
303 1 : wallet->SetupDescriptorScriptPubKeyMans();
304 : } else {
305 4 : for (auto spk_man : wallet->GetActiveScriptPubKeyMans()) {
306 2 : if (!spk_man->SetupGeneration()) {
307 0 : error = Untranslated("Unable to generate initial keys");
308 0 : status = DatabaseStatus::FAILED_CREATE;
309 0 : return nullptr;
310 : }
311 2 : }
312 : }
313 3 : }
314 :
315 : // Relock the wallet
316 3 : wallet->Lock();
317 : }
318 : }
319 360 : AddWallet(wallet);
320 360 : wallet->postInitProcess();
321 :
322 : // Write the wallet settings
323 360 : UpdateWalletSetting(chain, name, load_on_start, warnings);
324 :
325 360 : status = DatabaseStatus::SUCCESS;
326 360 : return wallet;
327 364 : }
328 :
329 650 : const uint256 CWalletTx::ABANDON_HASH(UINT256_ONE());
330 :
331 : /** @defgroup mapWallet
332 : *
333 : * @{
334 : */
335 :
336 0 : std::string COutput::ToString() const
337 : {
338 0 : return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString(), i, nDepth, FormatMoney(tx->tx->vout[i].nValue));
339 0 : }
340 :
341 19109 : const CWalletTx* CWallet::GetWalletTx(const uint256& hash) const
342 : {
343 19109 : AssertLockHeld(cs_wallet);
344 19109 : std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(hash);
345 19109 : if (it == mapWallet.end())
346 159 : return nullptr;
347 18950 : return &(it->second);
348 19109 : }
349 :
350 807 : void CWallet::UpgradeKeyMetadata()
351 : {
352 807 : if (IsLocked() || IsWalletFlagSet(WALLET_FLAG_KEY_ORIGIN_METADATA)) {
353 : return;
354 : }
355 :
356 621 : auto spk_man = GetLegacyScriptPubKeyMan();
357 621 : if (!spk_man) {
358 485 : return;
359 : }
360 :
361 136 : spk_man->UpgradeKeyMetadata();
362 136 : SetWalletFlag(WALLET_FLAG_KEY_ORIGIN_METADATA);
363 943 : }
364 :
365 66 : bool CWallet::Unlock(const SecureString& strWalletPassphrase, bool accept_no_keys)
366 : {
367 66 : CCrypter crypter;
368 66 : CKeyingMaterial _vMasterKey;
369 :
370 : {
371 66 : LOCK(cs_wallet);
372 132 : for (const MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
373 : {
374 66 : if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
375 0 : return false;
376 66 : if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, _vMasterKey))
377 4 : continue; // try another master key
378 62 : if (Unlock(_vMasterKey, accept_no_keys)) {
379 : // Now that we've unlocked, upgrade the key metadata
380 62 : UpgradeKeyMetadata();
381 62 : return true;
382 : }
383 0 : }
384 66 : }
385 4 : return false;
386 66 : }
387 :
388 2 : bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
389 : {
390 2 : bool fWasLocked = IsLocked();
391 :
392 : {
393 2 : LOCK(cs_wallet);
394 2 : Lock();
395 :
396 2 : CCrypter crypter;
397 2 : CKeyingMaterial _vMasterKey;
398 4 : for (MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
399 : {
400 2 : if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
401 0 : return false;
402 2 : if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, _vMasterKey))
403 0 : return false;
404 2 : if (Unlock(_vMasterKey))
405 : {
406 2 : int64_t nStartTime = GetTimeMillis();
407 2 : crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
408 2 : pMasterKey.second.nDeriveIterations = static_cast<unsigned int>(pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime))));
409 :
410 2 : nStartTime = GetTimeMillis();
411 2 : crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
412 2 : pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + static_cast<unsigned int>(pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime)))) / 2;
413 :
414 2 : if (pMasterKey.second.nDeriveIterations < 25000)
415 0 : pMasterKey.second.nDeriveIterations = 25000;
416 :
417 2 : WalletLogPrintf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
418 :
419 2 : if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
420 0 : return false;
421 2 : if (!crypter.Encrypt(_vMasterKey, pMasterKey.second.vchCryptedKey))
422 0 : return false;
423 2 : WalletBatch(*database).WriteMasterKey(pMasterKey.first, pMasterKey.second);
424 2 : if (fWasLocked)
425 2 : Lock();
426 2 : return true;
427 0 : }
428 0 : }
429 2 : }
430 :
431 0 : return false;
432 2 : }
433 :
434 1114 : void CWallet::chainStateFlushed(const CBlockLocator& loc)
435 : {
436 1114 : WalletBatch batch(*database);
437 1114 : batch.WriteBestBlock(loc);
438 1114 : }
439 :
440 19364 : void CWallet::SetMinVersion(enum WalletFeature nVersion, WalletBatch* batch_in, bool fExplicit)
441 : {
442 19364 : LOCK(cs_wallet);
443 19364 : if (nWalletVersion >= nVersion)
444 18939 : return;
445 :
446 : // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
447 425 : if (fExplicit && nVersion > nWalletMaxVersion)
448 0 : nVersion = FEATURE_LATEST;
449 :
450 425 : nWalletVersion = nVersion;
451 :
452 425 : if (nVersion > nWalletMaxVersion)
453 423 : nWalletMaxVersion = nVersion;
454 :
455 : {
456 425 : WalletBatch* batch = batch_in ? batch_in : new WalletBatch(*database);
457 425 : if (nWalletVersion > 40000)
458 425 : batch->WriteMinVersion(nWalletVersion);
459 425 : if (!batch_in)
460 425 : delete batch;
461 : }
462 19364 : }
463 :
464 2 : bool CWallet::SetMaxVersion(int nVersion)
465 : {
466 2 : LOCK(cs_wallet);
467 : // cannot downgrade below current version
468 2 : if (nWalletVersion > nVersion)
469 0 : return false;
470 :
471 2 : nWalletMaxVersion = nVersion;
472 :
473 2 : return true;
474 2 : }
475 :
476 2028 : std::set<uint256> CWallet::GetConflicts(const uint256& txid) const
477 : {
478 2028 : std::set<uint256> result;
479 2028 : AssertLockHeld(cs_wallet);
480 :
481 2028 : std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid);
482 2028 : if (it == mapWallet.end())
483 0 : return result;
484 2028 : const CWalletTx& wtx = it->second;
485 :
486 2028 : std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
487 :
488 4648 : for (const CTxIn& txin : wtx.tx->vin)
489 : {
490 2620 : if (mapTxSpends.count(txin.prevout) <= 1)
491 2583 : continue; // No conflict if zero or one spends
492 37 : range = mapTxSpends.equal_range(txin.prevout);
493 178 : for (TxSpends::const_iterator _it = range.first; _it != range.second; ++_it)
494 141 : result.insert(_it->second);
495 37 : }
496 : return result;
497 2028 : }
498 :
499 185 : bool CWallet::HasWalletSpend(const uint256& txid) const
500 : {
501 185 : AssertLockHeld(cs_wallet);
502 185 : auto iter = mapTxSpends.lower_bound(COutPoint(txid, 0));
503 185 : return (iter != mapTxSpends.end() && iter->first.hash == txid);
504 185 : }
505 :
506 1337 : void CWallet::Flush()
507 : {
508 1337 : database->Flush();
509 1337 : }
510 :
511 610 : void CWallet::Close()
512 : {
513 610 : database->Close();
514 610 : }
515 :
516 12877 : void CWallet::SyncMetaData(std::pair<TxSpends::iterator, TxSpends::iterator> range)
517 : {
518 : // We want all the wallet transactions in range to have the same metadata as
519 : // the oldest (smallest nOrderPos).
520 : // So: find smallest nOrderPos:
521 :
522 12877 : int nMinOrderPos = std::numeric_limits<int>::max();
523 : const CWalletTx* copyFrom = nullptr;
524 28326 : for (TxSpends::iterator it = range.first; it != range.second; ++it) {
525 15449 : const CWalletTx* wtx = &mapWallet.at(it->second);
526 15449 : if (wtx->nOrderPos < nMinOrderPos) {
527 12905 : nMinOrderPos = wtx->nOrderPos;
528 : copyFrom = wtx;
529 12905 : }
530 : }
531 :
532 12877 : if (!copyFrom) {
533 0 : return;
534 : }
535 :
536 : // Now copy data from copyFrom to rest:
537 28326 : for (TxSpends::iterator it = range.first; it != range.second; ++it)
538 : {
539 15449 : const uint256& hash = it->second;
540 15449 : CWalletTx* copyTo = &mapWallet.at(hash);
541 15449 : if (copyFrom == copyTo) continue;
542 2572 : assert(copyFrom && "Oldest wallet transaction in range assumed to have been found.");
543 2572 : if (!copyFrom->IsEquivalentTo(*copyTo)) continue;
544 3 : copyTo->mapValue = copyFrom->mapValue;
545 3 : copyTo->vOrderForm = copyFrom->vOrderForm;
546 : // fTimeReceivedIsTxTime not copied on purpose
547 : // nTimeReceived not copied on purpose
548 3 : copyTo->nTimeSmart = copyFrom->nTimeSmart;
549 3 : copyTo->fFromMe = copyFrom->fFromMe;
550 : // nOrderPos not copied on purpose
551 : // cached members not copied on purpose
552 3 : }
553 12877 : }
554 :
555 : /**
556 : * Outpoint is spent if any non-conflicted transaction
557 : * spends it:
558 : */
559 842595 : bool CWallet::IsSpent(const uint256& hash, unsigned int n) const
560 : {
561 842595 : const COutPoint outpoint(hash, n);
562 842595 : std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
563 842595 : range = mapTxSpends.equal_range(outpoint);
564 :
565 1209948 : for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
566 : {
567 367353 : const uint256& wtxid = it->second;
568 367353 : std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
569 367353 : if (mit != mapWallet.end()) {
570 367353 : int depth = mit->second.GetDepthInMainChain();
571 367353 : if (depth > 0 || (depth == 0 && !mit->second.isAbandoned()))
572 733013 : return true; // Spent
573 1693 : }
574 367353 : }
575 476935 : return false;
576 842595 : }
577 :
578 12877 : void CWallet::AddToSpends(const COutPoint& outpoint, const uint256& wtxid)
579 : {
580 12877 : mapTxSpends.insert(std::make_pair(outpoint, wtxid));
581 :
582 12877 : setLockedCoins.erase(outpoint);
583 :
584 12877 : std::pair<TxSpends::iterator, TxSpends::iterator> range;
585 12877 : range = mapTxSpends.equal_range(outpoint);
586 12877 : SyncMetaData(range);
587 12877 : }
588 :
589 :
590 145790 : void CWallet::AddToSpends(const uint256& wtxid)
591 : {
592 145790 : auto it = mapWallet.find(wtxid);
593 145790 : assert(it != mapWallet.end());
594 145790 : CWalletTx& thisTx = it->second;
595 145790 : if (thisTx.IsCoinBase()) // Coinbases don't spend anything!
596 31423 : return;
597 :
598 127244 : for (const CTxIn& txin : thisTx.tx->vin)
599 12877 : AddToSpends(txin.prevout, wtxid);
600 145790 : }
601 :
602 20 : bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
603 : {
604 20 : if (IsCrypted())
605 0 : return false;
606 :
607 20 : CKeyingMaterial _vMasterKey;
608 :
609 20 : _vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
610 20 : GetStrongRandBytes(&_vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
611 :
612 20 : CMasterKey kMasterKey;
613 :
614 20 : kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
615 20 : GetStrongRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
616 :
617 20 : CCrypter crypter;
618 20 : int64_t nStartTime = GetTimeMillis();
619 20 : crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
620 20 : kMasterKey.nDeriveIterations = static_cast<unsigned int>(2500000 / ((double)(GetTimeMillis() - nStartTime)));
621 :
622 20 : nStartTime = GetTimeMillis();
623 20 : crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
624 20 : kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + static_cast<unsigned int>(kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime)))) / 2;
625 :
626 20 : if (kMasterKey.nDeriveIterations < 25000)
627 8 : kMasterKey.nDeriveIterations = 25000;
628 :
629 20 : WalletLogPrintf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
630 :
631 20 : if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
632 0 : return false;
633 20 : if (!crypter.Encrypt(_vMasterKey, kMasterKey.vchCryptedKey))
634 0 : return false;
635 :
636 : {
637 20 : LOCK(cs_wallet);
638 20 : mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
639 20 : WalletBatch* encrypted_batch = new WalletBatch(*database);
640 20 : if (!encrypted_batch->TxnBegin()) {
641 0 : delete encrypted_batch;
642 : encrypted_batch = nullptr;
643 0 : return false;
644 : }
645 20 : encrypted_batch->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
646 :
647 56 : for (const auto& spk_man_pair : m_spk_managers) {
648 36 : auto spk_man = spk_man_pair.second.get();
649 36 : if (!spk_man->Encrypt(_vMasterKey, encrypted_batch)) {
650 0 : encrypted_batch->TxnAbort();
651 0 : delete encrypted_batch;
652 : encrypted_batch = nullptr;
653 : // We now probably have half of our keys encrypted in memory, and half not...
654 : // die and let the user reload the unencrypted wallet.
655 0 : assert(false);
656 : }
657 0 : }
658 :
659 : // Encryption was introduced in version 0.4.0
660 20 : SetMinVersion(FEATURE_WALLETCRYPT, encrypted_batch, true);
661 :
662 20 : if (!encrypted_batch->TxnCommit()) {
663 0 : delete encrypted_batch;
664 : encrypted_batch = nullptr;
665 : // We now have keys encrypted in memory, but not on disk...
666 : // die to avoid confusion and let the user reload the unencrypted wallet.
667 0 : assert(false);
668 : }
669 :
670 20 : delete encrypted_batch;
671 : encrypted_batch = nullptr;
672 :
673 20 : Lock();
674 20 : Unlock(strWalletPassphrase);
675 :
676 : // If we are using descriptors, make new descriptors with a new seed
677 20 : if (IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS) && !IsWalletFlagSet(WALLET_FLAG_BLANK_WALLET)) {
678 3 : SetupDescriptorScriptPubKeyMans();
679 33 : } else if (auto spk_man = GetLegacyScriptPubKeyMan()) {
680 : // if we are using HD, replace the HD seed with a new one
681 16 : if (spk_man->IsHDEnabled()) {
682 10 : if (!spk_man->SetupGeneration(true)) {
683 0 : return false;
684 : }
685 : }
686 : }
687 20 : Lock();
688 :
689 : // Need to completely rewrite the wallet file; if we don't, bdb might keep
690 : // bits of the unencrypted private key in slack space in the database file.
691 20 : database->Rewrite();
692 :
693 : // BDB seems to have a bad habit of writing old data into
694 : // slack space in .dat files; that is bad if the old data is
695 : // unencrypted private keys. So:
696 20 : database->ReloadDbEnv();
697 :
698 20 : }
699 20 : NotifyStatusChanged(this);
700 :
701 20 : return true;
702 20 : }
703 :
704 0 : DBErrors CWallet::ReorderTransactions()
705 : {
706 0 : LOCK(cs_wallet);
707 0 : WalletBatch batch(*database);
708 :
709 : // Old wallets didn't have any defined order for transactions
710 : // Probably a bad idea to change the output of this
711 :
712 : // First: get all CWalletTx into a sorted-by-time multimap.
713 : typedef std::multimap<int64_t, CWalletTx*> TxItems;
714 0 : TxItems txByTime;
715 :
716 0 : for (auto& entry : mapWallet)
717 : {
718 0 : CWalletTx* wtx = &entry.second;
719 0 : txByTime.insert(std::make_pair(wtx->nTimeReceived, wtx));
720 0 : }
721 :
722 0 : nOrderPosNext = 0;
723 0 : std::vector<int64_t> nOrderPosOffsets;
724 0 : for (TxItems::iterator it = txByTime.begin(); it != txByTime.end(); ++it)
725 : {
726 0 : CWalletTx *const pwtx = (*it).second;
727 0 : int64_t& nOrderPos = pwtx->nOrderPos;
728 :
729 0 : if (nOrderPos == -1)
730 : {
731 0 : nOrderPos = nOrderPosNext++;
732 0 : nOrderPosOffsets.push_back(nOrderPos);
733 :
734 0 : if (!batch.WriteTx(*pwtx))
735 0 : return DBErrors::LOAD_FAIL;
736 : }
737 : else
738 : {
739 : int64_t nOrderPosOff = 0;
740 0 : for (const int64_t& nOffsetStart : nOrderPosOffsets)
741 : {
742 0 : if (nOrderPos >= nOffsetStart)
743 0 : ++nOrderPosOff;
744 : }
745 0 : nOrderPos += nOrderPosOff;
746 0 : nOrderPosNext = std::max(nOrderPosNext, nOrderPos + 1);
747 :
748 0 : if (!nOrderPosOff)
749 0 : continue;
750 :
751 : // Since we're changing the order, write it back
752 0 : if (!batch.WriteTx(*pwtx))
753 0 : return DBErrors::LOAD_FAIL;
754 0 : }
755 0 : }
756 0 : batch.WriteOrderPosNext(nOrderPosNext);
757 :
758 0 : return DBErrors::LOAD_OK;
759 0 : }
760 :
761 136216 : int64_t CWallet::IncOrderPosNext(WalletBatch* batch)
762 : {
763 136216 : AssertLockHeld(cs_wallet);
764 136216 : int64_t nRet = nOrderPosNext++;
765 136216 : if (batch) {
766 136216 : batch->WriteOrderPosNext(nOrderPosNext);
767 136216 : } else {
768 0 : WalletBatch(*database).WriteOrderPosNext(nOrderPosNext);
769 : }
770 136216 : return nRet;
771 0 : }
772 :
773 570 : void CWallet::MarkDirty()
774 : {
775 : {
776 570 : LOCK(cs_wallet);
777 25594 : for (std::pair<const uint256, CWalletTx>& item : mapWallet)
778 25024 : item.second.MarkDirty();
779 570 : }
780 570 : }
781 :
782 85 : bool CWallet::MarkReplaced(const uint256& originalHash, const uint256& newHash)
783 : {
784 85 : LOCK(cs_wallet);
785 :
786 85 : auto mi = mapWallet.find(originalHash);
787 :
788 : // There is a bug if MarkReplaced is not called on an existing wallet transaction.
789 85 : assert(mi != mapWallet.end());
790 :
791 85 : CWalletTx& wtx = (*mi).second;
792 :
793 : // Ensure for now that we're not overwriting data
794 85 : assert(wtx.mapValue.count("replaced_by_txid") == 0);
795 :
796 85 : wtx.mapValue["replaced_by_txid"] = newHash.ToString();
797 :
798 85 : WalletBatch batch(*database, "r+");
799 :
800 : bool success = true;
801 85 : if (!batch.WriteTx(wtx)) {
802 0 : WalletLogPrintf("%s: Updating batch tx %s failed\n", __func__, wtx.GetHash().ToString());
803 : success = false;
804 0 : }
805 :
806 85 : NotifyTransactionChanged(this, originalHash, CT_UPDATED);
807 :
808 85 : return success;
809 85 : }
810 :
811 813 : void CWallet::SetSpentKeyState(WalletBatch& batch, const uint256& hash, unsigned int n, bool used, std::set<CTxDestination>& tx_destinations)
812 : {
813 813 : AssertLockHeld(cs_wallet);
814 813 : const CWalletTx* srctx = GetWalletTx(hash);
815 813 : if (!srctx) return;
816 :
817 754 : CTxDestination dst;
818 754 : if (ExtractDestination(srctx->tx->vout[n].scriptPubKey, dst)) {
819 754 : if (IsMine(dst)) {
820 634 : if (used && !GetDestData(dst, "used", nullptr)) {
821 43 : if (AddDestData(batch, dst, "used", "p")) { // p for "present", opposite of absent (null)
822 43 : tx_destinations.insert(dst);
823 43 : }
824 591 : } else if (!used && GetDestData(dst, "used", nullptr)) {
825 0 : EraseDestData(batch, dst, "used");
826 0 : }
827 : }
828 : }
829 813 : }
830 :
831 1016 : bool CWallet::IsSpentKey(const uint256& hash, unsigned int n) const
832 : {
833 1016 : AssertLockHeld(cs_wallet);
834 1016 : const CWalletTx* srctx = GetWalletTx(hash);
835 1016 : if (srctx) {
836 1016 : assert(srctx->tx->vout.size() > n);
837 1016 : CTxDestination dest;
838 1016 : if (!ExtractDestination(srctx->tx->vout[n].scriptPubKey, dest)) {
839 400 : return false;
840 : }
841 616 : if (GetDestData(dest, "used", nullptr)) {
842 18 : return true;
843 : }
844 598 : if (IsLegacy()) {
845 333 : LegacyScriptPubKeyMan* spk_man = GetLegacyScriptPubKeyMan();
846 333 : assert(spk_man != nullptr);
847 552 : for (const auto& keyid : GetAffectedKeys(srctx->tx->vout[n].scriptPubKey, *spk_man)) {
848 219 : WitnessV0KeyHash wpkh_dest(keyid);
849 219 : if (GetDestData(wpkh_dest, "used", nullptr)) {
850 0 : return true;
851 : }
852 219 : ScriptHash sh_wpkh_dest(GetScriptForDestination(wpkh_dest));
853 219 : if (GetDestData(sh_wpkh_dest, "used", nullptr)) {
854 0 : return true;
855 : }
856 219 : PKHash pkh_dest(keyid);
857 219 : if (GetDestData(pkh_dest, "used", nullptr)) {
858 12 : return true;
859 : }
860 219 : }
861 321 : }
862 1016 : }
863 586 : return false;
864 1016 : }
865 :
866 161132 : CWalletTx* CWallet::AddToWallet(CTransactionRef tx, const CWalletTx::Confirmation& confirm, const UpdateWalletTxFn& update_wtx, bool fFlushOnClose)
867 : {
868 161132 : LOCK(cs_wallet);
869 :
870 161132 : WalletBatch batch(*database, "r+", fFlushOnClose);
871 :
872 161132 : uint256 hash = tx->GetHash();
873 :
874 161132 : if (IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE)) {
875 : // Mark used destinations
876 291 : std::set<CTxDestination> tx_destinations;
877 :
878 1104 : for (const CTxIn& txin : tx->vin) {
879 813 : const COutPoint& op = txin.prevout;
880 813 : SetSpentKeyState(batch, op.hash, op.n, true, tx_destinations);
881 : }
882 :
883 291 : MarkDestinationsDirty(tx_destinations);
884 291 : }
885 :
886 : // Inserts only if not already there, returns tx inserted or tx found
887 161132 : auto ret = mapWallet.emplace(std::piecewise_construct, std::forward_as_tuple(hash), std::forward_as_tuple(this, tx));
888 161132 : CWalletTx& wtx = (*ret.first).second;
889 161132 : bool fInsertedNew = ret.second;
890 161132 : bool fUpdated = update_wtx && update_wtx(wtx, fInsertedNew);
891 161132 : if (fInsertedNew) {
892 136216 : wtx.m_confirm = confirm;
893 136216 : wtx.nTimeReceived = chain().getAdjustedTime();
894 136216 : wtx.nOrderPos = IncOrderPosNext(&batch);
895 136216 : wtx.m_it_wtxOrdered = wtxOrdered.insert(std::make_pair(wtx.nOrderPos, &wtx));
896 136216 : wtx.nTimeSmart = ComputeTimeSmart(wtx);
897 136216 : AddToSpends(hash);
898 : }
899 :
900 161132 : if (!fInsertedNew)
901 : {
902 24916 : if (confirm.status != wtx.m_confirm.status) {
903 3779 : wtx.m_confirm.status = confirm.status;
904 3779 : wtx.m_confirm.nIndex = confirm.nIndex;
905 3779 : wtx.m_confirm.hashBlock = confirm.hashBlock;
906 3779 : wtx.m_confirm.block_height = confirm.block_height;
907 : fUpdated = true;
908 3779 : } else {
909 21137 : assert(wtx.m_confirm.nIndex == confirm.nIndex);
910 21137 : assert(wtx.m_confirm.hashBlock == confirm.hashBlock);
911 21137 : assert(wtx.m_confirm.block_height == confirm.block_height);
912 : }
913 : // If we have a witness-stripped version of this transaction, and we
914 : // see a new version with a witness, then we must be upgrading a pre-segwit
915 : // wallet. Store the new version of the transaction with the witness,
916 : // as the stripped-version must be invalid.
917 : // TODO: Store all versions of the transaction, instead of just one.
918 24916 : if (tx->HasWitness() && !wtx.tx->HasWitness()) {
919 0 : wtx.SetTx(tx);
920 : fUpdated = true;
921 0 : }
922 : }
923 :
924 : //// debug print
925 161132 : WalletLogPrintf("AddToWallet %s %s%s\n", hash.ToString(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
926 :
927 : // Write to disk
928 161132 : if (fInsertedNew || fUpdated)
929 139995 : if (!batch.WriteTx(wtx))
930 0 : return nullptr;
931 :
932 : // Break debit/credit balance caches:
933 161132 : wtx.MarkDirty();
934 :
935 : // Notify UI of new or updated transaction
936 161132 : NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
937 :
938 : #if HAVE_SYSTEM
939 : // notify an external script when a wallet transaction comes in or is updated
940 161132 : std::string strCmd = gArgs.GetArg("-walletnotify", "");
941 :
942 161132 : if (!strCmd.empty())
943 : {
944 26 : boost::replace_all(strCmd, "%s", hash.GetHex());
945 : #ifndef WIN32
946 : // Substituting the wallet name isn't currently supported on windows
947 : // because windows shell escaping has not been implemented yet:
948 : // https://github.com/bitcoin/bitcoin/pull/13339#issuecomment-537384875
949 : // A few ways it could be implemented in the future are described in:
950 : // https://github.com/bitcoin/bitcoin/pull/13339#issuecomment-461288094
951 26 : boost::replace_all(strCmd, "%w", ShellEscape(GetName()));
952 : #endif
953 26 : std::thread t(runCommand, strCmd);
954 26 : t.detach(); // thread runs free
955 26 : }
956 : #endif
957 :
958 : return &wtx;
959 161132 : }
960 :
961 9574 : bool CWallet::LoadToWallet(const uint256& hash, const UpdateWalletTxFn& fill_wtx)
962 : {
963 9574 : const auto& ins = mapWallet.emplace(std::piecewise_construct, std::forward_as_tuple(hash), std::forward_as_tuple(this, nullptr));
964 9574 : CWalletTx& wtx = ins.first->second;
965 9574 : if (!fill_wtx(wtx, ins.second)) {
966 0 : return false;
967 : }
968 : // If wallet doesn't have a chain (e.g wallet-tool), don't bother to update txn.
969 9574 : if (HaveChain()) {
970 9573 : Optional<int> block_height = chain().getBlockHeight(wtx.m_confirm.hashBlock);
971 9573 : if (block_height) {
972 : // Update cached block height variable since it not stored in the
973 : // serialized transaction.
974 8926 : wtx.m_confirm.block_height = *block_height;
975 9573 : } else if (wtx.isConflicted() || wtx.isConfirmed()) {
976 : // If tx block (or conflicting block) was reorged out of chain
977 : // while the wallet was shutdown, change tx status to UNCONFIRMED
978 : // and reset block height, hash, and index. ABANDONED tx don't have
979 : // associated blocks and don't need to be updated. The case where a
980 : // transaction was reorged out while online and then reconfirmed
981 : // while offline is covered by the rescan logic.
982 559 : wtx.setUnconfirmed();
983 559 : wtx.m_confirm.hashBlock = uint256();
984 559 : wtx.m_confirm.block_height = 0;
985 559 : wtx.m_confirm.nIndex = 0;
986 559 : }
987 9573 : }
988 9574 : if (/* insertion took place */ ins.second) {
989 9574 : wtx.m_it_wtxOrdered = wtxOrdered.insert(std::make_pair(wtx.nOrderPos, &wtx));
990 9574 : }
991 9574 : AddToSpends(hash);
992 19202 : for (const CTxIn& txin : wtx.tx->vin) {
993 9628 : auto it = mapWallet.find(txin.prevout.hash);
994 9628 : if (it != mapWallet.end()) {
995 545 : CWalletTx& prevtx = it->second;
996 545 : if (prevtx.isConflicted()) {
997 0 : MarkConflicted(prevtx.m_confirm.hashBlock, prevtx.m_confirm.block_height, wtx.GetHash());
998 0 : }
999 545 : }
1000 9628 : }
1001 9574 : return true;
1002 9574 : }
1003 :
1004 205040 : bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef& ptx, CWalletTx::Confirmation confirm, bool fUpdate)
1005 : {
1006 205040 : const CTransaction& tx = *ptx;
1007 : {
1008 205040 : AssertLockHeld(cs_wallet);
1009 :
1010 205040 : if (!confirm.hashBlock.IsNull()) {
1011 385927 : for (const CTxIn& txin : tx.vin) {
1012 208730 : std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range = mapTxSpends.equal_range(txin.prevout);
1013 219319 : while (range.first != range.second) {
1014 10589 : if (range.first->second != tx.GetHash()) {
1015 310 : WalletLogPrintf("Transaction %s (in block %s) conflicts with wallet transaction %s (both spend %s:%i)\n", tx.GetHash().ToString(), confirm.hashBlock.ToString(), range.first->second.ToString(), range.first->first.hash.ToString(), range.first->first.n);
1016 310 : MarkConflicted(confirm.hashBlock, confirm.block_height, range.first->second);
1017 310 : }
1018 10589 : range.first++;
1019 : }
1020 208730 : }
1021 177197 : }
1022 :
1023 205040 : bool fExisted = mapWallet.count(tx.GetHash()) != 0;
1024 205040 : if (fExisted && !fUpdate) return false;
1025 205040 : if (fExisted || IsMine(tx) || IsFromMe(tx))
1026 : {
1027 : /* Check if any keys in the wallet keypool that were supposed to be unused
1028 : * have appeared in a new transaction. If so, remove those keys from the keypool.
1029 : * This can happen when restoring an old wallet backup that does not contain
1030 : * the mostly recently created transactions from newer versions of the wallet.
1031 : */
1032 :
1033 : // loop though all outputs
1034 242325 : for (const CTxOut& txout: tx.vout) {
1035 420927 : for (const auto& spk_man_pair : m_spk_managers) {
1036 228551 : spk_man_pair.second->MarkUnusedAddresses(txout.scriptPubKey);
1037 : }
1038 : }
1039 :
1040 : // Block disconnection override an abandoned tx as unconfirmed
1041 : // which means user may have to call abandontransaction again
1042 49949 : return AddToWallet(MakeTransactionRef(tx), confirm, /* update_wtx= */ nullptr, /* fFlushOnClose= */ false);
1043 : }
1044 155091 : }
1045 155091 : return false;
1046 205040 : }
1047 :
1048 0 : bool CWallet::TransactionCanBeAbandoned(const uint256& hashTx) const
1049 : {
1050 0 : LOCK(cs_wallet);
1051 0 : const CWalletTx* wtx = GetWalletTx(hashTx);
1052 0 : return wtx && !wtx->isAbandoned() && wtx->GetDepthInMainChain() == 0 && !wtx->InMempool();
1053 0 : }
1054 :
1055 50229 : void CWallet::MarkInputsDirty(const CTransactionRef& tx)
1056 : {
1057 120599 : for (const CTxIn& txin : tx->vin) {
1058 70370 : auto it = mapWallet.find(txin.prevout.hash);
1059 70370 : if (it != mapWallet.end()) {
1060 26748 : it->second.MarkDirty();
1061 26748 : }
1062 70370 : }
1063 50229 : }
1064 :
1065 7 : bool CWallet::AbandonTransaction(const uint256& hashTx)
1066 : {
1067 7 : LOCK(cs_wallet);
1068 :
1069 7 : WalletBatch batch(*database, "r+");
1070 :
1071 7 : std::set<uint256> todo;
1072 7 : std::set<uint256> done;
1073 :
1074 : // Can't mark abandoned if confirmed or in mempool
1075 7 : auto it = mapWallet.find(hashTx);
1076 7 : assert(it != mapWallet.end());
1077 7 : CWalletTx& origtx = it->second;
1078 7 : if (origtx.GetDepthInMainChain() != 0 || origtx.InMempool()) {
1079 2 : return false;
1080 : }
1081 :
1082 5 : todo.insert(hashTx);
1083 :
1084 12 : while (!todo.empty()) {
1085 7 : uint256 now = *todo.begin();
1086 7 : todo.erase(now);
1087 7 : done.insert(now);
1088 7 : auto it = mapWallet.find(now);
1089 7 : assert(it != mapWallet.end());
1090 7 : CWalletTx& wtx = it->second;
1091 7 : int currentconfirm = wtx.GetDepthInMainChain();
1092 : // If the orig tx was not in block, none of its spends can be
1093 7 : assert(currentconfirm <= 0);
1094 : // if (currentconfirm < 0) {Tx and spends are already conflicted, no need to abandon}
1095 7 : if (currentconfirm == 0 && !wtx.isAbandoned()) {
1096 : // If the orig tx was not in block/mempool, none of its spends can be in mempool
1097 7 : assert(!wtx.InMempool());
1098 7 : wtx.setAbandoned();
1099 7 : wtx.MarkDirty();
1100 7 : batch.WriteTx(wtx);
1101 7 : NotifyTransactionChanged(this, wtx.GetHash(), CT_UPDATED);
1102 : // Iterate over all its outputs, and mark transactions in the wallet that spend them abandoned too
1103 7 : TxSpends::const_iterator iter = mapTxSpends.lower_bound(COutPoint(now, 0));
1104 9 : while (iter != mapTxSpends.end() && iter->first.hash == now) {
1105 2 : if (!done.count(iter->second)) {
1106 2 : todo.insert(iter->second);
1107 2 : }
1108 2 : iter++;
1109 : }
1110 : // If a transaction changes 'conflicted' state, that changes the balance
1111 : // available of the outputs it spends. So force those to be recomputed
1112 7 : MarkInputsDirty(wtx.tx);
1113 7 : }
1114 7 : }
1115 :
1116 5 : return true;
1117 7 : }
1118 :
1119 310 : void CWallet::MarkConflicted(const uint256& hashBlock, int conflicting_height, const uint256& hashTx)
1120 : {
1121 310 : LOCK(cs_wallet);
1122 :
1123 310 : int conflictconfirms = (m_last_block_processed_height - conflicting_height + 1) * -1;
1124 : // If number of conflict confirms cannot be determined, this means
1125 : // that the block is still unknown or not yet part of the main chain,
1126 : // for example when loading the wallet during a reindex. Do nothing in that
1127 : // case.
1128 310 : if (conflictconfirms >= 0)
1129 0 : return;
1130 :
1131 : // Do not flush the wallet here for performance reasons
1132 310 : WalletBatch batch(*database, "r+", false);
1133 :
1134 310 : std::set<uint256> todo;
1135 310 : std::set<uint256> done;
1136 :
1137 310 : todo.insert(hashTx);
1138 :
1139 624 : while (!todo.empty()) {
1140 314 : uint256 now = *todo.begin();
1141 314 : todo.erase(now);
1142 314 : done.insert(now);
1143 314 : auto it = mapWallet.find(now);
1144 314 : assert(it != mapWallet.end());
1145 314 : CWalletTx& wtx = it->second;
1146 314 : int currentconfirm = wtx.GetDepthInMainChain();
1147 314 : if (conflictconfirms < currentconfirm) {
1148 : // Block is 'more conflicted' than current confirm; update.
1149 : // Mark transaction as conflicted with this block.
1150 273 : wtx.m_confirm.nIndex = 0;
1151 273 : wtx.m_confirm.hashBlock = hashBlock;
1152 273 : wtx.m_confirm.block_height = conflicting_height;
1153 273 : wtx.setConflicted();
1154 273 : wtx.MarkDirty();
1155 273 : batch.WriteTx(wtx);
1156 : // Iterate over all its outputs, and mark transactions in the wallet that spend them conflicted too
1157 273 : TxSpends::const_iterator iter = mapTxSpends.lower_bound(COutPoint(now, 0));
1158 277 : while (iter != mapTxSpends.end() && iter->first.hash == now) {
1159 4 : if (!done.count(iter->second)) {
1160 4 : todo.insert(iter->second);
1161 4 : }
1162 4 : iter++;
1163 : }
1164 : // If a transaction changes 'conflicted' state, that changes the balance
1165 : // available of the outputs it spends. So force those to be recomputed
1166 273 : MarkInputsDirty(wtx.tx);
1167 273 : }
1168 314 : }
1169 310 : }
1170 :
1171 205040 : void CWallet::SyncTransaction(const CTransactionRef& ptx, CWalletTx::Confirmation confirm, bool update_tx)
1172 : {
1173 205040 : if (!AddToWalletIfInvolvingMe(ptx, confirm, update_tx))
1174 : return; // Not one of ours
1175 :
1176 : // If a transaction changes 'conflicted' state, that changes the balance
1177 : // available of the outputs it spends. So force those to be
1178 : // recomputed, also:
1179 49949 : MarkInputsDirty(ptx);
1180 205040 : }
1181 :
1182 18877 : void CWallet::transactionAddedToMempool(const CTransactionRef& tx) {
1183 18877 : LOCK(cs_wallet);
1184 18877 : SyncTransaction(tx, {CWalletTx::Status::UNCONFIRMED, /* block height */ 0, /* block hash */ {}, /* index */ 0});
1185 :
1186 18877 : auto it = mapWallet.find(tx->GetHash());
1187 18877 : if (it != mapWallet.end()) {
1188 2754 : it->second.fInMempool = true;
1189 2754 : }
1190 18877 : }
1191 :
1192 91311 : void CWallet::transactionRemovedFromMempool(const CTransactionRef& tx, MemPoolRemovalReason reason) {
1193 91311 : LOCK(cs_wallet);
1194 91311 : auto it = mapWallet.find(tx->GetHash());
1195 91311 : if (it != mapWallet.end()) {
1196 20483 : it->second.fInMempool = false;
1197 20483 : }
1198 : // Handle transactions that were removed from the mempool because they
1199 : // conflict with transactions in a newly connected block.
1200 91311 : if (reason == MemPoolRemovalReason::CONFLICT) {
1201 : // Call SyncNotifications, so external -walletnotify notifications will
1202 : // be triggered for these transactions. Set Status::UNCONFIRMED instead
1203 : // of Status::CONFLICTED for a few reasons:
1204 : //
1205 : // 1. The transactionRemovedFromMempool callback does not currently
1206 : // provide the conflicting block's hash and height, and for backwards
1207 : // compatibility reasons it may not be not safe to store conflicted
1208 : // wallet transactions with a null block hash. See
1209 : // https://github.com/bitcoin/bitcoin/pull/18600#discussion_r420195993.
1210 : // 2. For most of these transactions, the wallet's internal conflict
1211 : // detection in the blockConnected handler will subsequently call
1212 : // MarkConflicted and update them with CONFLICTED status anyway. This
1213 : // applies to any wallet transaction that has inputs spent in the
1214 : // block, or that has ancestors in the wallet with inputs spent by
1215 : // the block.
1216 : // 3. Longstanding behavior since the sync implementation in
1217 : // https://github.com/bitcoin/bitcoin/pull/9371 and the prior sync
1218 : // implementation before that was to mark these transactions
1219 : // unconfirmed rather than conflicted.
1220 : //
1221 : // Nothing described above should be seen as an unchangeable requirement
1222 : // when improving this code in the future. The wallet's heuristics for
1223 : // distinguishing between conflicted and unconfirmed transactions are
1224 : // imperfect, and could be improved in general, see
1225 : // https://github.com/bitcoin-core/bitcoin-devwiki/wiki/Wallet-Transaction-Conflict-Tracking
1226 49 : SyncTransaction(tx, {CWalletTx::Status::UNCONFIRMED, /* block height */ 0, /* block hash */ {}, /* index */ 0});
1227 : }
1228 91311 : }
1229 :
1230 45219 : void CWallet::blockConnected(const CBlock& block, int height)
1231 : {
1232 45219 : const uint256& block_hash = block.GetHash();
1233 45219 : LOCK(cs_wallet);
1234 :
1235 45219 : m_last_block_processed_height = height;
1236 45219 : m_last_block_processed = block_hash;
1237 136083 : for (size_t index = 0; index < block.vtx.size(); index++) {
1238 90864 : SyncTransaction(block.vtx[index], {CWalletTx::Status::CONFIRMED, height, block_hash, (int)index});
1239 90864 : transactionRemovedFromMempool(block.vtx[index], MemPoolRemovalReason::BLOCK);
1240 : }
1241 45219 : }
1242 :
1243 2753 : void CWallet::blockDisconnected(const CBlock& block, int height)
1244 : {
1245 2753 : LOCK(cs_wallet);
1246 :
1247 : // At block disconnection, this will change an abandoned transaction to
1248 : // be unconfirmed, whether or not the transaction is added back to the mempool.
1249 : // User may have to call abandontransaction again. It may be addressed in the
1250 : // future with a stickier abandoned state or even removing abandontransaction call.
1251 2753 : m_last_block_processed_height = height - 1;
1252 2753 : m_last_block_processed = block.hashPrevBlock;
1253 11670 : for (const CTransactionRef& ptx : block.vtx) {
1254 8917 : SyncTransaction(ptx, {CWalletTx::Status::UNCONFIRMED, /* block height */ 0, /* block hash */ {}, /* index */ 0});
1255 : }
1256 2753 : }
1257 :
1258 42874 : void CWallet::updatedBlockTip()
1259 : {
1260 42874 : m_best_block_time = GetTime();
1261 42874 : }
1262 :
1263 :
1264 4635 : void CWallet::BlockUntilSyncedToCurrentChain() const {
1265 4635 : AssertLockNotHeld(cs_wallet);
1266 : // Skip the queue-draining stuff if we know we're caught up with
1267 : // ::ChainActive().Tip(), otherwise put a callback in the validation interface queue and wait
1268 : // for the queue to drain enough to execute it (indicating we are caught up
1269 : // at least with the time we entered this function).
1270 9270 : uint256 last_block_hash = WITH_LOCK(cs_wallet, return m_last_block_processed);
1271 4635 : chain().waitForNotificationsIfTipChanged(last_block_hash);
1272 4635 : }
1273 :
1274 :
1275 412 : isminetype CWallet::IsMine(const CTxIn &txin) const
1276 : {
1277 412 : AssertLockHeld(cs_wallet);
1278 412 : std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
1279 412 : if (mi != mapWallet.end())
1280 : {
1281 4 : const CWalletTx& prev = (*mi).second;
1282 4 : if (txin.prevout.n < prev.tx->vout.size())
1283 4 : return IsMine(prev.tx->vout[txin.prevout.n]);
1284 0 : }
1285 408 : return ISMINE_NO;
1286 412 : }
1287 :
1288 : // Note that this function doesn't distinguish between a 0-valued input,
1289 : // and a not-"is mine" (according to the filter) input.
1290 238071 : CAmount CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) const
1291 : {
1292 : {
1293 238071 : LOCK(cs_wallet);
1294 238071 : std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
1295 238071 : if (mi != mapWallet.end())
1296 : {
1297 26390 : const CWalletTx& prev = (*mi).second;
1298 26390 : if (txin.prevout.n < prev.tx->vout.size())
1299 26390 : if (IsMine(prev.tx->vout[txin.prevout.n]) & filter)
1300 250302 : return prev.tx->vout[txin.prevout.n].nValue;
1301 14159 : }
1302 238071 : }
1303 225840 : return 0;
1304 238071 : }
1305 :
1306 970384 : isminetype CWallet::IsMine(const CTxOut& txout) const
1307 : {
1308 970384 : AssertLockHeld(cs_wallet);
1309 970384 : return IsMine(txout.scriptPubKey);
1310 : }
1311 :
1312 14866 : isminetype CWallet::IsMine(const CTxDestination& dest) const
1313 : {
1314 14866 : AssertLockHeld(cs_wallet);
1315 14866 : return IsMine(GetScriptForDestination(dest));
1316 0 : }
1317 :
1318 987365 : isminetype CWallet::IsMine(const CScript& script) const
1319 : {
1320 987365 : AssertLockHeld(cs_wallet);
1321 987365 : isminetype result = ISMINE_NO;
1322 2286484 : for (const auto& spk_man_pair : m_spk_managers) {
1323 1299119 : result = std::max(result, spk_man_pair.second->IsMine(script));
1324 : }
1325 1974730 : return result;
1326 987365 : }
1327 :
1328 94249 : CAmount CWallet::GetCredit(const CTxOut& txout, const isminefilter& filter) const
1329 : {
1330 94249 : if (!MoneyRange(txout.nValue))
1331 0 : throw std::runtime_error(std::string(__func__) + ": value out of range");
1332 94249 : LOCK(cs_wallet);
1333 94249 : return ((IsMine(txout) & filter) ? txout.nValue : 0);
1334 94249 : }
1335 :
1336 958 : bool CWallet::IsChange(const CTxOut& txout) const
1337 : {
1338 958 : return IsChange(txout.scriptPubKey);
1339 : }
1340 :
1341 1907 : bool CWallet::IsChange(const CScript& script) const
1342 : {
1343 : // TODO: fix handling of 'change' outputs. The assumption is that any
1344 : // payment to a script that is ours, but is not in the address book
1345 : // is change. That assumption is likely to break when we implement multisignature
1346 : // wallets that return change back into a multi-signature-protected address;
1347 : // a better way of identifying which outputs are 'the send' and which are
1348 : // 'the change' will need to be implemented (maybe extend CWalletTx to remember
1349 : // which output, if any, was change).
1350 1907 : AssertLockHeld(cs_wallet);
1351 1907 : if (IsMine(script))
1352 : {
1353 1440 : CTxDestination address;
1354 1440 : if (!ExtractDestination(script, address))
1355 0 : return true;
1356 1440 : if (!FindAddressBookEntry(address)) {
1357 486 : return true;
1358 : }
1359 1440 : }
1360 1421 : return false;
1361 1907 : }
1362 :
1363 0 : CAmount CWallet::GetChange(const CTxOut& txout) const
1364 : {
1365 0 : AssertLockHeld(cs_wallet);
1366 0 : if (!MoneyRange(txout.nValue))
1367 0 : throw std::runtime_error(std::string(__func__) + ": value out of range");
1368 0 : return (IsChange(txout) ? txout.nValue : 0);
1369 0 : }
1370 :
1371 180128 : bool CWallet::IsMine(const CTransaction& tx) const
1372 : {
1373 180128 : AssertLockHeld(cs_wallet);
1374 560594 : for (const CTxOut& txout : tx.vout)
1375 380466 : if (IsMine(txout))
1376 380466 : return true;
1377 155248 : return false;
1378 180128 : }
1379 :
1380 155247 : bool CWallet::IsFromMe(const CTransaction& tx) const
1381 : {
1382 155247 : return (GetDebit(tx, ISMINE_ALL) > 0);
1383 : }
1384 :
1385 180466 : CAmount CWallet::GetDebit(const CTransaction& tx, const isminefilter& filter) const
1386 : {
1387 180466 : CAmount nDebit = 0;
1388 418537 : for (const CTxIn& txin : tx.vin)
1389 : {
1390 238071 : nDebit += GetDebit(txin, filter);
1391 238071 : if (!MoneyRange(nDebit))
1392 0 : throw std::runtime_error(std::string(__func__) + ": value out of range");
1393 : }
1394 360932 : return nDebit;
1395 180466 : }
1396 :
1397 179 : bool CWallet::IsAllFromMe(const CTransaction& tx, const isminefilter& filter) const
1398 : {
1399 179 : LOCK(cs_wallet);
1400 :
1401 494 : for (const CTxIn& txin : tx.vin)
1402 : {
1403 315 : auto mi = mapWallet.find(txin.prevout.hash);
1404 315 : if (mi == mapWallet.end())
1405 0 : return false; // any unknown inputs can't be from us
1406 :
1407 315 : const CWalletTx& prev = (*mi).second;
1408 :
1409 315 : if (txin.prevout.n >= prev.tx->vout.size())
1410 0 : return false; // invalid input!
1411 :
1412 315 : if (!(IsMine(prev.tx->vout[txin.prevout.n]) & filter))
1413 1 : return false;
1414 629 : }
1415 178 : return true;
1416 179 : }
1417 :
1418 14733 : CAmount CWallet::GetCredit(const CTransaction& tx, const isminefilter& filter) const
1419 : {
1420 14733 : CAmount nCredit = 0;
1421 44160 : for (const CTxOut& txout : tx.vout)
1422 : {
1423 29427 : nCredit += GetCredit(txout, filter);
1424 29427 : if (!MoneyRange(nCredit))
1425 0 : throw std::runtime_error(std::string(__func__) + ": value out of range");
1426 : }
1427 29466 : return nCredit;
1428 14733 : }
1429 :
1430 0 : CAmount CWallet::GetChange(const CTransaction& tx) const
1431 : {
1432 0 : LOCK(cs_wallet);
1433 0 : CAmount nChange = 0;
1434 0 : for (const CTxOut& txout : tx.vout)
1435 : {
1436 0 : nChange += GetChange(txout);
1437 0 : if (!MoneyRange(nChange))
1438 0 : throw std::runtime_error(std::string(__func__) + ": value out of range");
1439 : }
1440 0 : return nChange;
1441 0 : }
1442 :
1443 3 : bool CWallet::IsHDEnabled() const
1444 : {
1445 : // All Active ScriptPubKeyMans must be HD for this to be true
1446 : bool result = true;
1447 6 : for (const auto& spk_man : GetActiveScriptPubKeyMans()) {
1448 3 : result &= spk_man->IsHDEnabled();
1449 0 : }
1450 3 : return result;
1451 0 : }
1452 :
1453 8747 : bool CWallet::CanGetAddresses(bool internal) const
1454 : {
1455 8747 : LOCK(cs_wallet);
1456 8747 : if (m_spk_managers.empty()) return false;
1457 8873 : for (OutputType t : OUTPUT_TYPES) {
1458 8833 : auto spk_man = GetScriptPubKeyMan(t, internal);
1459 8833 : if (spk_man && spk_man->CanGetAddresses(internal)) {
1460 8705 : return true;
1461 : }
1462 8961 : }
1463 40 : return false;
1464 8747 : }
1465 :
1466 139 : void CWallet::SetWalletFlag(uint64_t flags)
1467 : {
1468 139 : LOCK(cs_wallet);
1469 139 : m_wallet_flags |= flags;
1470 139 : if (!WalletBatch(*database).WriteWalletFlags(m_wallet_flags))
1471 0 : throw std::runtime_error(std::string(__func__) + ": writing wallet flags failed");
1472 139 : }
1473 :
1474 0 : void CWallet::UnsetWalletFlag(uint64_t flag)
1475 : {
1476 0 : WalletBatch batch(*database);
1477 0 : UnsetWalletFlagWithDB(batch, flag);
1478 0 : }
1479 :
1480 11323 : void CWallet::UnsetWalletFlagWithDB(WalletBatch& batch, uint64_t flag)
1481 : {
1482 11323 : LOCK(cs_wallet);
1483 11323 : m_wallet_flags &= ~flag;
1484 11323 : if (!batch.WriteWalletFlags(m_wallet_flags))
1485 0 : throw std::runtime_error(std::string(__func__) + ": writing wallet flags failed");
1486 11323 : }
1487 :
1488 11323 : void CWallet::UnsetBlankWalletFlag(WalletBatch& batch)
1489 : {
1490 11323 : UnsetWalletFlagWithDB(batch, WALLET_FLAG_BLANK_WALLET);
1491 11323 : }
1492 :
1493 320075 : bool CWallet::IsWalletFlagSet(uint64_t flag) const
1494 : {
1495 320075 : return (m_wallet_flags & flag);
1496 : }
1497 :
1498 725 : bool CWallet::LoadWalletFlags(uint64_t flags)
1499 : {
1500 725 : LOCK(cs_wallet);
1501 725 : if (((flags & KNOWN_WALLET_FLAGS) >> 32) ^ (flags >> 32)) {
1502 : // contains unknown non-tolerable wallet flags
1503 0 : return false;
1504 : }
1505 725 : m_wallet_flags = flags;
1506 :
1507 725 : return true;
1508 725 : }
1509 :
1510 420 : bool CWallet::AddWalletFlags(uint64_t flags)
1511 : {
1512 420 : LOCK(cs_wallet);
1513 : // We should never be writing unknown non-tolerable wallet flags
1514 420 : assert(((flags & KNOWN_WALLET_FLAGS) >> 32) == (flags >> 32));
1515 420 : if (!WalletBatch(*database).WriteWalletFlags(flags)) {
1516 0 : throw std::runtime_error(std::string(__func__) + ": writing wallet flags failed");
1517 : }
1518 :
1519 420 : return LoadWalletFlags(flags);
1520 420 : }
1521 :
1522 2028 : int64_t CWalletTx::GetTxTime() const
1523 : {
1524 2028 : int64_t n = nTimeSmart;
1525 2028 : return n ? n : nTimeReceived;
1526 : }
1527 :
1528 : // Helper for producing a max-sized low-S low-R signature (eg 71 bytes)
1529 : // or a max-sized low-S signature (e.g. 72 bytes) if use_max_sig is true
1530 353703 : bool CWallet::DummySignInput(CTxIn &tx_in, const CTxOut &txout, bool use_max_sig) const
1531 : {
1532 : // Fill in dummy signatures for fee calculation.
1533 353703 : const CScript& scriptPubKey = txout.scriptPubKey;
1534 353703 : SignatureData sigdata;
1535 :
1536 353703 : std::unique_ptr<SigningProvider> provider = GetSolvingProvider(scriptPubKey);
1537 353703 : if (!provider) {
1538 : // We don't know about this scriptpbuKey;
1539 111414 : return false;
1540 : }
1541 :
1542 242289 : if (!ProduceSignature(*provider, use_max_sig ? DUMMY_MAXIMUM_SIGNATURE_CREATOR : DUMMY_SIGNATURE_CREATOR, scriptPubKey, sigdata)) {
1543 0 : return false;
1544 : }
1545 242289 : UpdateInput(tx_in, sigdata);
1546 242289 : return true;
1547 353703 : }
1548 :
1549 : // Helper for producing a bunch of max-sized low-S low-R signatures (eg 71 bytes)
1550 3151 : bool CWallet::DummySignTx(CMutableTransaction &txNew, const std::vector<CTxOut> &txouts, bool use_max_sig) const
1551 : {
1552 : // Fill in dummy signatures for fee calculation.
1553 : int nIn = 0;
1554 17014 : for (const auto& txout : txouts)
1555 : {
1556 13863 : if (!DummySignInput(txNew.vin[nIn], txout, use_max_sig)) {
1557 0 : return false;
1558 : }
1559 :
1560 13863 : nIn++;
1561 13863 : }
1562 3151 : return true;
1563 3151 : }
1564 :
1565 1377 : bool CWallet::ImportScripts(const std::set<CScript> scripts, int64_t timestamp)
1566 : {
1567 1377 : auto spk_man = GetLegacyScriptPubKeyMan();
1568 1377 : if (!spk_man) {
1569 0 : return false;
1570 : }
1571 1377 : LOCK(spk_man->cs_KeyStore);
1572 1377 : return spk_man->ImportScripts(scripts, timestamp);
1573 1377 : }
1574 :
1575 1335 : bool CWallet::ImportPrivKeys(const std::map<CKeyID, CKey>& privkey_map, const int64_t timestamp)
1576 : {
1577 1335 : auto spk_man = GetLegacyScriptPubKeyMan();
1578 1335 : if (!spk_man) {
1579 0 : return false;
1580 : }
1581 1335 : LOCK(spk_man->cs_KeyStore);
1582 1335 : return spk_man->ImportPrivKeys(privkey_map, timestamp);
1583 1335 : }
1584 :
1585 199 : bool CWallet::ImportPubKeys(const std::vector<CKeyID>& ordered_pubkeys, const std::map<CKeyID, CPubKey>& pubkey_map, const std::map<CKeyID, std::pair<CPubKey, KeyOriginInfo>>& key_origins, const bool add_keypool, const bool internal, const int64_t timestamp)
1586 : {
1587 199 : auto spk_man = GetLegacyScriptPubKeyMan();
1588 199 : if (!spk_man) {
1589 0 : return false;
1590 : }
1591 199 : LOCK(spk_man->cs_KeyStore);
1592 199 : return spk_man->ImportPubKeys(ordered_pubkeys, pubkey_map, key_origins, add_keypool, internal, timestamp);
1593 199 : }
1594 :
1595 281 : bool CWallet::ImportScriptPubKeys(const std::string& label, const std::set<CScript>& script_pub_keys, const bool have_solving_data, const bool apply_label, const int64_t timestamp)
1596 : {
1597 281 : auto spk_man = GetLegacyScriptPubKeyMan();
1598 281 : if (!spk_man) {
1599 0 : return false;
1600 : }
1601 281 : LOCK(spk_man->cs_KeyStore);
1602 281 : if (!spk_man->ImportScriptPubKeys(script_pub_keys, have_solving_data, timestamp)) {
1603 0 : return false;
1604 : }
1605 281 : if (apply_label) {
1606 265 : WalletBatch batch(*database);
1607 648 : for (const CScript& script : script_pub_keys) {
1608 383 : CTxDestination dest;
1609 383 : ExtractDestination(script, dest);
1610 383 : if (IsValidDestination(dest)) {
1611 374 : SetAddressBookWithDB(batch, dest, label, "receive");
1612 374 : }
1613 383 : }
1614 265 : }
1615 281 : return true;
1616 281 : }
1617 :
1618 3151 : int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, bool use_max_sig)
1619 : {
1620 3151 : std::vector<CTxOut> txouts;
1621 17014 : for (const CTxIn& input : tx.vin) {
1622 13863 : const auto mi = wallet->mapWallet.find(input.prevout.hash);
1623 : // Can not estimate size without knowing the input details
1624 13863 : if (mi == wallet->mapWallet.end()) {
1625 0 : return -1;
1626 : }
1627 13863 : assert(input.prevout.n < mi->second.tx->vout.size());
1628 13863 : txouts.emplace_back(mi->second.tx->vout[input.prevout.n]);
1629 13863 : }
1630 3151 : return CalculateMaximumSignedTxSize(tx, wallet, txouts, use_max_sig);
1631 3151 : }
1632 :
1633 : // txouts needs to be in the order of tx.vin
1634 3151 : int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, const std::vector<CTxOut>& txouts, bool use_max_sig)
1635 : {
1636 3151 : CMutableTransaction txNew(tx);
1637 3151 : if (!wallet->DummySignTx(txNew, txouts, use_max_sig)) {
1638 0 : return -1;
1639 : }
1640 3151 : return GetVirtualTransactionSize(CTransaction(txNew));
1641 3151 : }
1642 :
1643 339840 : int CalculateMaximumSignedInputSize(const CTxOut& txout, const CWallet* wallet, bool use_max_sig)
1644 : {
1645 339840 : CMutableTransaction txn;
1646 339840 : txn.vin.push_back(CTxIn(COutPoint()));
1647 339840 : if (!wallet->DummySignInput(txn.vin[0], txout, use_max_sig)) {
1648 111414 : return -1;
1649 : }
1650 228426 : return GetVirtualTransactionInputSize(txn.vin[0]);
1651 339840 : }
1652 :
1653 19442 : void CWalletTx::GetAmounts(std::list<COutputEntry>& listReceived,
1654 : std::list<COutputEntry>& listSent, CAmount& nFee, const isminefilter& filter) const
1655 : {
1656 19442 : nFee = 0;
1657 19442 : listReceived.clear();
1658 19442 : listSent.clear();
1659 :
1660 : // Compute fee:
1661 19442 : CAmount nDebit = GetDebit(filter);
1662 19442 : if (nDebit > 0) // debit>0 means we signed/sent this transaction
1663 : {
1664 401 : CAmount nValueOut = tx->GetValueOut();
1665 401 : nFee = nDebit - nValueOut;
1666 401 : }
1667 :
1668 19442 : LOCK(pwallet->cs_wallet);
1669 : // Sent/received.
1670 58303 : for (unsigned int i = 0; i < tx->vout.size(); ++i)
1671 : {
1672 38861 : const CTxOut& txout = tx->vout[i];
1673 38861 : isminetype fIsMine = pwallet->IsMine(txout);
1674 : // Only need to handle txouts if AT LEAST one of these is true:
1675 : // 1) they debit from us (sent)
1676 : // 2) the output is to us (received)
1677 38861 : if (nDebit > 0)
1678 : {
1679 : // Don't report 'change' txouts
1680 765 : if (pwallet->IsChange(txout))
1681 315 : continue;
1682 : }
1683 38096 : else if (!(fIsMine & filter))
1684 19057 : continue;
1685 :
1686 : // In either case, we need to get the destination address
1687 19489 : CTxDestination address;
1688 :
1689 19489 : if (!ExtractDestination(txout.scriptPubKey, address) && !txout.scriptPubKey.IsUnspendable())
1690 : {
1691 0 : pwallet->WalletLogPrintf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
1692 0 : this->GetHash().ToString());
1693 0 : address = CNoDestination();
1694 0 : }
1695 :
1696 19489 : COutputEntry output = {address, txout.nValue, (int)i};
1697 :
1698 : // If we are debited by the transaction, add the output as a "sent" entry
1699 19489 : if (nDebit > 0)
1700 450 : listSent.push_back(output);
1701 :
1702 : // If we are receiving the output, add it as a "received" entry
1703 19489 : if (fIsMine & filter)
1704 19218 : listReceived.push_back(output);
1705 19489 : }
1706 :
1707 19442 : }
1708 :
1709 : /**
1710 : * Scan active chain for relevant transactions after importing keys. This should
1711 : * be called whenever new keys are added to the wallet, with the oldest key
1712 : * creation time.
1713 : *
1714 : * @return Earliest timestamp that could be successfully scanned from. Timestamp
1715 : * returned will be higher than startTime if relevant blocks could not be read.
1716 : */
1717 547 : int64_t CWallet::RescanFromTime(int64_t startTime, const WalletRescanReserver& reserver, bool update)
1718 : {
1719 : // Find starting block. May be null if nCreateTime is greater than the
1720 : // highest blockchain timestamp, in which case there is nothing that needs
1721 : // to be scanned.
1722 547 : int start_height = 0;
1723 547 : uint256 start_block;
1724 547 : bool start = chain().findFirstBlockWithTimeAndHeight(startTime - TIMESTAMP_WINDOW, 0, FoundBlock().hash(start_block).height(start_height));
1725 1094 : WalletLogPrintf("%s: Rescanning last %i blocks\n", __func__, start ? WITH_LOCK(cs_wallet, return GetLastBlockHeight()) - start_height + 1 : 0);
1726 :
1727 547 : if (start) {
1728 : // TODO: this should take into account failure by ScanResult::USER_ABORT
1729 547 : ScanResult result = ScanForWalletTransactions(start_block, start_height, {} /* max_height */, reserver, update);
1730 547 : if (result.status == ScanResult::FAILURE) {
1731 1 : int64_t time_max;
1732 1 : CHECK_NONFATAL(chain().findBlock(result.last_failed_block, FoundBlock().maxTime(time_max)));
1733 1 : return time_max + TIMESTAMP_WINDOW + 1;
1734 1 : }
1735 547 : }
1736 546 : return startTime;
1737 547 : }
1738 :
1739 : /**
1740 : * Scan the block chain (starting in start_block) for transactions
1741 : * from or to us. If fUpdate is true, found transactions that already
1742 : * exist in the wallet will be updated.
1743 : *
1744 : * @param[in] start_block Scan starting block. If block is not on the active
1745 : * chain, the scan will return SUCCESS immediately.
1746 : * @param[in] start_height Height of start_block
1747 : * @param[in] max_height Optional max scanning height. If unset there is
1748 : * no maximum and scanning can continue to the tip
1749 : *
1750 : * @return ScanResult returning scan information and indicating success or
1751 : * failure. Return status will be set to SUCCESS if scan was
1752 : * successful. FAILURE if a complete rescan was not possible (due to
1753 : * pruning or corruption). USER_ABORT if the rescan was aborted before
1754 : * it could complete.
1755 : *
1756 : * @pre Caller needs to make sure start_block (and the optional stop_block) are on
1757 : * the main chain after to the addition of any new keys you want to detect
1758 : * transactions for.
1759 : */
1760 639 : CWallet::ScanResult CWallet::ScanForWalletTransactions(const uint256& start_block, int start_height, Optional<int> max_height, const WalletRescanReserver& reserver, bool fUpdate)
1761 : {
1762 639 : int64_t nNow = GetTime();
1763 639 : int64_t start_time = GetTimeMillis();
1764 :
1765 639 : assert(reserver.isReserved());
1766 :
1767 639 : uint256 block_hash = start_block;
1768 639 : ScanResult result;
1769 :
1770 639 : WalletLogPrintf("Rescan started from block %s...\n", start_block.ToString());
1771 :
1772 639 : fAbortRescan = false;
1773 639 : ShowProgress(strprintf("%s " + _("Rescanning...").translated, GetDisplayName()), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
1774 1278 : uint256 tip_hash = WITH_LOCK(cs_wallet, return GetLastBlockHash());
1775 639 : uint256 end_hash = tip_hash;
1776 639 : if (max_height) chain().findAncestorByHeight(tip_hash, *max_height, FoundBlock().hash(end_hash));
1777 639 : double progress_begin = chain().guessVerificationProgress(block_hash);
1778 76903 : double progress_end = chain().guessVerificationProgress(end_hash);
1779 77542 : double progress_current = progress_begin;
1780 639 : int block_height = start_height;
1781 76903 : while (!fAbortRescan && !chain().shutdownRequested()) {
1782 76903 : m_scanning_progress = (progress_current - progress_begin) / (progress_end - progress_begin);
1783 76903 : if (block_height % 100 == 0 && progress_end - progress_begin > 0.0) {
1784 1 : ShowProgress(strprintf("%s " + _("Rescanning...").translated, GetDisplayName()), std::max(1, std::min(99, (int)(m_scanning_progress * 100))));
1785 1 : }
1786 76903 : if (GetTime() >= nNow + 60) {
1787 0 : nNow = GetTime();
1788 0 : WalletLogPrintf("Still rescanning. At block %d. Progress=%f\n", block_height, progress_current);
1789 0 : }
1790 :
1791 76903 : CBlock block;
1792 : bool next_block;
1793 76903 : uint256 next_block_hash;
1794 76903 : bool reorg = false;
1795 76903 : if (chain().findBlock(block_hash, FoundBlock().data(block)) && !block.IsNull()) {
1796 76798 : LOCK(cs_wallet);
1797 76798 : next_block = chain().findNextBlock(block_hash, block_height, FoundBlock().hash(next_block_hash), &reorg);
1798 76798 : if (reorg) {
1799 : // Abort scan if current block is no longer active, to prevent
1800 : // marking transactions as coming from the wrong block.
1801 : // TODO: This should return success instead of failure, see
1802 : // https://github.com/bitcoin/bitcoin/pull/14711#issuecomment-458342518
1803 0 : result.last_failed_block = block_hash;
1804 0 : result.status = ScanResult::FAILURE;
1805 0 : break;
1806 : }
1807 163131 : for (size_t posInBlock = 0; posInBlock < block.vtx.size(); ++posInBlock) {
1808 86333 : SyncTransaction(block.vtx[posInBlock], {CWalletTx::Status::CONFIRMED, block_height, block_hash, (int)posInBlock}, fUpdate);
1809 : }
1810 : // scan succeeded, record block as most recent successfully scanned
1811 76798 : result.last_scanned_block = block_hash;
1812 76798 : result.last_scanned_height = block_height;
1813 76798 : } else {
1814 : // could not scan block, keep scanning but record this block as the most recent failure
1815 105 : result.last_failed_block = block_hash;
1816 105 : result.status = ScanResult::FAILURE;
1817 105 : next_block = chain().findNextBlock(block_hash, block_height, FoundBlock().hash(next_block_hash), &reorg);
1818 : }
1819 76903 : if (max_height && block_height >= *max_height) {
1820 2 : break;
1821 : }
1822 : {
1823 76901 : if (!next_block || reorg) {
1824 : // break successfully when rescan has reached the tip, or
1825 : // previous block is no longer on the chain due to a reorg
1826 637 : break;
1827 : }
1828 :
1829 : // increment block and verification progress
1830 76264 : block_hash = next_block_hash;
1831 76264 : ++block_height;
1832 76264 : progress_current = chain().guessVerificationProgress(block_hash);
1833 :
1834 : // handle updated tip hash
1835 76264 : const uint256 prev_tip_hash = tip_hash;
1836 152528 : tip_hash = WITH_LOCK(cs_wallet, return GetLastBlockHash());
1837 76264 : if (!max_height && prev_tip_hash != tip_hash) {
1838 : // in case the tip has changed, update progress max
1839 12 : progress_end = chain().guessVerificationProgress(tip_hash);
1840 12 : }
1841 76264 : }
1842 76903 : }
1843 639 : ShowProgress(strprintf("%s " + _("Rescanning...").translated, GetDisplayName()), 100); // hide progress dialog in GUI
1844 639 : if (block_height && fAbortRescan) {
1845 0 : WalletLogPrintf("Rescan aborted at block %d. Progress=%f\n", block_height, progress_current);
1846 0 : result.status = ScanResult::USER_ABORT;
1847 639 : } else if (block_height && chain().shutdownRequested()) {
1848 0 : WalletLogPrintf("Rescan interrupted by shutdown request at block %d. Progress=%f\n", block_height, progress_current);
1849 0 : result.status = ScanResult::USER_ABORT;
1850 0 : } else {
1851 639 : WalletLogPrintf("Rescan completed in %15dms\n", GetTimeMillis() - start_time);
1852 : }
1853 : return result;
1854 639 : }
1855 :
1856 967 : void CWallet::ReacceptWalletTransactions()
1857 : {
1858 : // If transactions aren't being broadcasted, don't let them into local mempool either
1859 967 : if (!fBroadcastTransactions)
1860 : return;
1861 958 : std::map<int64_t, CWalletTx*> mapSorted;
1862 :
1863 : // Sort pending wallet transactions based on their initial wallet insertion order
1864 25997 : for (std::pair<const uint256, CWalletTx>& item : mapWallet) {
1865 25039 : const uint256& wtxid = item.first;
1866 25039 : CWalletTx& wtx = item.second;
1867 25039 : assert(wtx.GetHash() == wtxid);
1868 :
1869 25039 : int nDepth = wtx.GetDepthInMainChain();
1870 :
1871 25039 : if (!wtx.IsCoinBase() && (nDepth == 0 && !wtx.isAbandoned())) {
1872 162 : mapSorted.insert(std::make_pair(wtx.nOrderPos, &wtx));
1873 162 : }
1874 0 : }
1875 :
1876 : // Try to add wallet transactions to memory pool
1877 1120 : for (const std::pair<const int64_t, CWalletTx*>& item : mapSorted) {
1878 162 : CWalletTx& wtx = *(item.second);
1879 162 : std::string unused_err_string;
1880 162 : wtx.SubmitMemoryPoolAndRelay(unused_err_string, false);
1881 162 : }
1882 967 : }
1883 :
1884 1923 : bool CWalletTx::SubmitMemoryPoolAndRelay(std::string& err_string, bool relay)
1885 : {
1886 : // Can't relay if wallet is not broadcasting
1887 1923 : if (!pwallet->GetBroadcastTransactions()) return false;
1888 : // Don't relay abandoned transactions
1889 1923 : if (isAbandoned()) return false;
1890 : // Don't try to submit coinbase transactions. These would fail anyway but would
1891 : // cause log spam.
1892 1923 : if (IsCoinBase()) return false;
1893 : // Don't try to submit conflicted or confirmed transactions.
1894 1369 : if (GetDepthInMainChain() != 0) return false;
1895 :
1896 : // Submit transaction to mempool for relay
1897 1341 : pwallet->WalletLogPrintf("Submitting wtx %s to mempool for relay\n", GetHash().ToString());
1898 : // We must set fInMempool here - while it will be re-set to true by the
1899 : // entered-mempool callback, if we did not there would be a race where a
1900 : // user could call sendmoney in a loop and hit spurious out of funds errors
1901 : // because we think that this newly generated transaction's change is
1902 : // unavailable as we're not yet aware that it is in the mempool.
1903 : //
1904 : // Irrespective of the failure reason, un-marking fInMempool
1905 : // out-of-order is incorrect - it should be unmarked when
1906 : // TransactionRemovedFromMempool fires.
1907 1341 : bool ret = pwallet->chain().broadcastTransaction(tx, pwallet->m_default_max_tx_fee, relay, err_string);
1908 1341 : fInMempool |= ret;
1909 : return ret;
1910 1923 : }
1911 :
1912 2028 : std::set<uint256> CWalletTx::GetConflicts() const
1913 : {
1914 2028 : std::set<uint256> result;
1915 2028 : if (pwallet != nullptr)
1916 : {
1917 2028 : uint256 myHash = GetHash();
1918 2028 : result = pwallet->GetConflicts(myHash);
1919 2028 : result.erase(myHash);
1920 2028 : }
1921 : return result;
1922 2028 : }
1923 :
1924 980356 : CAmount CWalletTx::GetCachableAmount(AmountType type, const isminefilter& filter, bool recalculate) const
1925 : {
1926 980356 : auto& amount = m_amounts[type];
1927 980356 : if (recalculate || !amount.m_cached[filter]) {
1928 39952 : amount.Set(filter, type == DEBIT ? pwallet->GetDebit(*tx, filter) : pwallet->GetCredit(*tx, filter));
1929 39952 : m_is_cache_empty = false;
1930 39952 : }
1931 980356 : return amount.m_value[filter];
1932 : }
1933 :
1934 477404 : CAmount CWalletTx::GetDebit(const isminefilter& filter) const
1935 : {
1936 477404 : if (tx->vin.empty())
1937 2 : return 0;
1938 :
1939 : CAmount debit = 0;
1940 477402 : if (filter & ISMINE_SPENDABLE) {
1941 457957 : debit += GetCachableAmount(DEBIT, ISMINE_SPENDABLE);
1942 457957 : }
1943 477402 : if (filter & ISMINE_WATCH_ONLY) {
1944 474920 : debit += GetCachableAmount(DEBIT, ISMINE_WATCH_ONLY);
1945 474920 : }
1946 : return debit;
1947 477404 : }
1948 :
1949 237 : CAmount CWalletTx::GetCredit(const isminefilter& filter) const
1950 : {
1951 : // Must wait until coinbase is safely deep enough in the chain before valuing it
1952 237 : if (IsImmatureCoinBase())
1953 9 : return 0;
1954 :
1955 : CAmount credit = 0;
1956 228 : if (filter & ISMINE_SPENDABLE) {
1957 : // GetBalance can assume transactions in mapWallet won't change
1958 228 : credit += GetCachableAmount(CREDIT, ISMINE_SPENDABLE);
1959 228 : }
1960 228 : if (filter & ISMINE_WATCH_ONLY) {
1961 9 : credit += GetCachableAmount(CREDIT, ISMINE_WATCH_ONLY);
1962 9 : }
1963 : return credit;
1964 237 : }
1965 :
1966 89910 : CAmount CWalletTx::GetImmatureCredit(bool fUseCache) const
1967 : {
1968 89910 : if (IsImmatureCoinBase() && IsInMainChain()) {
1969 23622 : return GetCachableAmount(IMMATURE_CREDIT, ISMINE_SPENDABLE, !fUseCache);
1970 : }
1971 :
1972 66288 : return 0;
1973 89910 : }
1974 :
1975 179816 : CAmount CWalletTx::GetAvailableCredit(bool fUseCache, const isminefilter& filter) const
1976 : {
1977 179816 : if (pwallet == nullptr)
1978 0 : return 0;
1979 :
1980 : // Avoid caching ismine for NO or ALL cases (could remove this check and simplify in the future).
1981 179816 : bool allow_cache = (filter & ISMINE_ALL) && (filter & ISMINE_ALL) != ISMINE_ALL;
1982 :
1983 : // Must wait until coinbase is safely deep enough in the chain before valuing it
1984 179816 : if (IsImmatureCoinBase())
1985 47262 : return 0;
1986 :
1987 132554 : if (fUseCache && allow_cache && m_amounts[AVAILABLE_CREDIT].m_cached[filter]) {
1988 97470 : return m_amounts[AVAILABLE_CREDIT].m_value[filter];
1989 : }
1990 :
1991 35084 : bool allow_used_addresses = (filter & ISMINE_USED) || !pwallet->IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE);
1992 35084 : CAmount nCredit = 0;
1993 35084 : uint256 hashTx = GetHash();
1994 110528 : for (unsigned int i = 0; i < tx->vout.size(); i++)
1995 : {
1996 75444 : if (!pwallet->IsSpent(hashTx, i) && (allow_used_addresses || !pwallet->IsSpentKey(hashTx, i))) {
1997 64822 : const CTxOut &txout = tx->vout[i];
1998 64822 : nCredit += pwallet->GetCredit(txout, filter);
1999 64822 : if (!MoneyRange(nCredit))
2000 0 : throw std::runtime_error(std::string(__func__) + " : value out of range");
2001 64822 : }
2002 : }
2003 :
2004 35084 : if (allow_cache) {
2005 35084 : m_amounts[AVAILABLE_CREDIT].Set(filter, nCredit);
2006 35084 : m_is_cache_empty = false;
2007 35084 : }
2008 :
2009 35084 : return nCredit;
2010 214900 : }
2011 :
2012 89908 : CAmount CWalletTx::GetImmatureWatchOnlyCredit(const bool fUseCache) const
2013 : {
2014 89908 : if (IsImmatureCoinBase() && IsInMainChain()) {
2015 23620 : return GetCachableAmount(IMMATURE_CREDIT, ISMINE_WATCH_ONLY, !fUseCache);
2016 : }
2017 :
2018 66288 : return 0;
2019 89908 : }
2020 :
2021 0 : CAmount CWalletTx::GetChange() const
2022 : {
2023 0 : if (fChangeCached)
2024 0 : return nChangeCached;
2025 0 : nChangeCached = pwallet->GetChange(*tx);
2026 0 : fChangeCached = true;
2027 0 : return nChangeCached;
2028 0 : }
2029 :
2030 23913 : bool CWalletTx::InMempool() const
2031 : {
2032 23913 : return fInMempool;
2033 : }
2034 :
2035 553 : bool CWalletTx::IsTrusted() const
2036 : {
2037 553 : std::set<uint256> trusted_parents;
2038 553 : LOCK(pwallet->cs_wallet);
2039 553 : return pwallet->IsTrusted(*this, trusted_parents);
2040 553 : }
2041 :
2042 461327 : bool CWallet::IsTrusted(const CWalletTx& wtx, std::set<uint256>& trusted_parents) const
2043 : {
2044 461327 : AssertLockHeld(cs_wallet);
2045 : // Quick answer in most cases
2046 461327 : if (!chain().checkFinalTx(*wtx.tx)) return false;
2047 461326 : int nDepth = wtx.GetDepthInMainChain();
2048 461326 : if (nDepth >= 1) return true;
2049 11147 : if (nDepth < 0) return false;
2050 : // using wtx's cached debit
2051 11022 : if (!m_spend_zero_conf_change || !wtx.IsFromMe(ISMINE_ALL)) return false;
2052 :
2053 : // Don't trust unconfirmed transactions from us unless they are in the mempool.
2054 9971 : if (!wtx.InMempool()) return false;
2055 :
2056 : // Trusted if all inputs are from us and are in the mempool:
2057 27096 : for (const CTxIn& txin : wtx.tx->vin)
2058 : {
2059 : // Transactions not sent by us: not trusted
2060 17177 : const CWalletTx* parent = GetWalletTx(txin.prevout.hash);
2061 17177 : if (parent == nullptr) return false;
2062 17177 : const CTxOut& parentOut = parent->tx->vout[txin.prevout.n];
2063 : // Check that this specific input being spent is trusted
2064 17177 : if (IsMine(parentOut) != ISMINE_SPENDABLE) return false;
2065 : // If we've already trusted this parent, continue
2066 17172 : if (trusted_parents.count(parent->GetHash())) continue;
2067 : // Recurse to check that the parent is also trusted
2068 13801 : if (!IsTrusted(*parent, trusted_parents)) return false;
2069 13778 : trusted_parents.insert(parent->GetHash());
2070 27556 : }
2071 9891 : return true;
2072 461327 : }
2073 :
2074 2572 : bool CWalletTx::IsEquivalentTo(const CWalletTx& _tx) const
2075 : {
2076 2572 : CMutableTransaction tx1 {*this->tx};
2077 2572 : CMutableTransaction tx2 {*_tx.tx};
2078 5155 : for (auto& txin : tx1.vin) txin.scriptSig = CScript();
2079 5186 : for (auto& txin : tx2.vin) txin.scriptSig = CScript();
2080 2572 : return CTransaction(tx1) == CTransaction(tx2);
2081 2572 : }
2082 :
2083 : // Rebroadcast transactions from the wallet. We do this on a random timer
2084 : // to slightly obfuscate which transactions come from our wallet.
2085 : //
2086 : // Ideally, we'd only resend transactions that we think should have been
2087 : // mined in the most recent block. Any transaction that wasn't in the top
2088 : // blockweight of transactions in the mempool shouldn't have been mined,
2089 : // and so is probably just sitting in the mempool waiting to be confirmed.
2090 : // Rebroadcasting does nothing to speed up confirmation and only damages
2091 : // privacy.
2092 13157 : void CWallet::ResendWalletTransactions()
2093 : {
2094 : // During reindex, importing and IBD, old wallet transactions become
2095 : // unconfirmed. Don't resend them as that would spam other nodes.
2096 13157 : if (!chain().isReadyToBroadcast()) return;
2097 :
2098 : // Do this infrequently and randomly to avoid giving away
2099 : // that these are our transactions.
2100 12161 : if (GetTime() < nNextResend || !fBroadcastTransactions) return;
2101 480 : bool fFirst = (nNextResend == 0);
2102 : // resend 12-36 hours from now, ~1 day on average.
2103 480 : nNextResend = GetTime() + (12 * 60 * 60) + GetRand(24 * 60 * 60);
2104 480 : if (fFirst) return;
2105 :
2106 915 : int submitted_tx_count = 0;
2107 :
2108 : { // cs_wallet scope
2109 8 : LOCK(cs_wallet);
2110 :
2111 : // Relay transactions
2112 915 : for (std::pair<const uint256, CWalletTx>& item : mapWallet) {
2113 907 : CWalletTx& wtx = item.second;
2114 : // Attempt to rebroadcast all txes more than 5 minutes older than
2115 : // the last block. SubmitMemoryPoolAndRelay() will not rebroadcast
2116 : // any confirmed or conflicting txs.
2117 907 : if (wtx.nTimeReceived > m_best_block_time - 5 * 60) continue;
2118 582 : std::string unused_err_string;
2119 582 : if (wtx.SubmitMemoryPoolAndRelay(unused_err_string, true)) ++submitted_tx_count;
2120 1164 : }
2121 8 : } // cs_wallet
2122 :
2123 8 : if (submitted_tx_count > 0) {
2124 0 : WalletLogPrintf("%s: resubmit %u unconfirmed transactions\n", __func__, submitted_tx_count);
2125 0 : }
2126 13165 : }
2127 :
2128 : /** @} */ // end of mapWallet
2129 :
2130 12554 : void MaybeResendWalletTxs()
2131 : {
2132 25711 : for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
2133 13157 : pwallet->ResendWalletTransactions();
2134 : }
2135 12554 : }
2136 :
2137 :
2138 : /** @defgroup Actions
2139 : *
2140 : * @{
2141 : */
2142 :
2143 :
2144 1809 : CWallet::Balance CWallet::GetBalance(const int min_depth, bool avoid_reuse) const
2145 : {
2146 1809 : Balance ret;
2147 1809 : isminefilter reuse_filter = avoid_reuse ? ISMINE_NO : ISMINE_USED;
2148 : {
2149 1809 : LOCK(cs_wallet);
2150 1809 : std::set<uint256> trusted_parents;
2151 91717 : for (const auto& entry : mapWallet)
2152 : {
2153 89908 : const CWalletTx& wtx = entry.second;
2154 89908 : const bool is_trusted{IsTrusted(wtx, trusted_parents)};
2155 89908 : const int tx_depth{wtx.GetDepthInMainChain()};
2156 89908 : const CAmount tx_credit_mine{wtx.GetAvailableCredit(/* fUseCache */ true, ISMINE_SPENDABLE | reuse_filter)};
2157 89908 : const CAmount tx_credit_watchonly{wtx.GetAvailableCredit(/* fUseCache */ true, ISMINE_WATCH_ONLY | reuse_filter)};
2158 89908 : if (is_trusted && tx_depth >= min_depth) {
2159 89548 : ret.m_mine_trusted += tx_credit_mine;
2160 89548 : ret.m_watchonly_trusted += tx_credit_watchonly;
2161 89548 : }
2162 89908 : if (!is_trusted && tx_depth == 0 && wtx.InMempool()) {
2163 192 : ret.m_mine_untrusted_pending += tx_credit_mine;
2164 192 : ret.m_watchonly_untrusted_pending += tx_credit_watchonly;
2165 192 : }
2166 89908 : ret.m_mine_immature += wtx.GetImmatureCredit();
2167 89908 : ret.m_watchonly_immature += wtx.GetImmatureWatchOnlyCredit();
2168 0 : }
2169 1809 : }
2170 : return ret;
2171 1809 : }
2172 :
2173 1 : CAmount CWallet::GetAvailableBalance(const CCoinControl* coinControl) const
2174 : {
2175 1 : LOCK(cs_wallet);
2176 :
2177 : CAmount balance = 0;
2178 1 : std::vector<COutput> vCoins;
2179 1 : AvailableCoins(vCoins, true, coinControl);
2180 2 : for (const COutput& out : vCoins) {
2181 1 : if (out.fSpendable) {
2182 1 : balance += out.tx->tx->vout[out.i].nValue;
2183 1 : }
2184 : }
2185 : return balance;
2186 1 : }
2187 :
2188 3041 : void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const CCoinControl* coinControl, const CAmount& nMinimumAmount, const CAmount& nMaximumAmount, const CAmount& nMinimumSumAmount, const uint64_t nMaximumCount) const
2189 : {
2190 3041 : AssertLockHeld(cs_wallet);
2191 :
2192 3041 : vCoins.clear();
2193 2800446 : CAmount nTotal = 0;
2194 : // Either the WALLET_FLAG_AVOID_REUSE flag is not set (in which case we always allow), or we default to avoiding, and only in the case where
2195 : // a coin control object is provided, and has the avoid address reuse flag set to false, do we allow already used addresses
2196 3041 : bool allow_used_addresses = !IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE) || (coinControl && !coinControl->m_avoid_address_reuse);
2197 3041 : const int min_depth = {coinControl ? coinControl->m_min_depth : DEFAULT_MIN_DEPTH};
2198 3041 : const int max_depth = {coinControl ? coinControl->m_max_depth : DEFAULT_MAX_DEPTH};
2199 :
2200 3041 : std::set<uint256> trusted_parents;
2201 570341 : for (const auto& entry : mapWallet)
2202 : {
2203 567300 : const uint256& wtxid = entry.first;
2204 567300 : const CWalletTx& wtx = entry.second;
2205 :
2206 567300 : if (!chain().checkFinalTx(*wtx.tx)) {
2207 0 : continue;
2208 : }
2209 :
2210 567300 : if (wtx.IsImmatureCoinBase())
2211 203775 : continue;
2212 :
2213 363525 : int nDepth = wtx.GetDepthInMainChain();
2214 363525 : if (nDepth < 0)
2215 2163 : continue;
2216 :
2217 : // We should not consider coins which aren't at least in our mempool
2218 : // It's possible for these to be conflicted via ancestors which we may never be able to detect
2219 361362 : if (nDepth == 0 && !wtx.InMempool())
2220 4707 : continue;
2221 :
2222 356655 : bool safeTx = IsTrusted(wtx, trusted_parents);
2223 :
2224 : // We should not consider coins from transactions that are replacing
2225 : // other transactions.
2226 : //
2227 : // Example: There is a transaction A which is replaced by bumpfee
2228 : // transaction B. In this case, we want to prevent creation of
2229 : // a transaction B' which spends an output of B.
2230 : //
2231 : // Reason: If transaction A were initially confirmed, transactions B
2232 : // and B' would no longer be valid, so the user would have to create
2233 : // a new transaction C to replace B'. However, in the case of a
2234 : // one-block reorg, transactions B' and C might BOTH be accepted,
2235 : // when the user only wanted one of them. Specifically, there could
2236 : // be a 1-block reorg away from the chain where transactions A and C
2237 : // were accepted to another chain where B, B', and C were all
2238 : // accepted.
2239 356655 : if (nDepth == 0 && wtx.mapValue.count("replaces_txid")) {
2240 : safeTx = false;
2241 139 : }
2242 :
2243 : // Similarly, we should not consider coins from transactions that
2244 : // have been replaced. In the example above, we would want to prevent
2245 : // creation of a transaction A' spending an output of A, because if
2246 : // transaction B were initially confirmed, conflicting with A and
2247 : // A', we wouldn't want to the user to create a transaction D
2248 : // intending to replace A', but potentially resulting in a scenario
2249 : // where A, A', and D could all be accepted (instead of just B and
2250 : // D, or just A and A' like the user would want).
2251 356655 : if (nDepth == 0 && wtx.mapValue.count("replaced_by_txid")) {
2252 : safeTx = false;
2253 1 : }
2254 :
2255 356655 : if (fOnlySafe && !safeTx) {
2256 722 : continue;
2257 : }
2258 :
2259 355933 : if (nDepth < min_depth || nDepth > max_depth) {
2260 2866 : continue;
2261 : }
2262 :
2263 1309738 : for (unsigned int i = 0; i < wtx.tx->vout.size(); i++) {
2264 : // Only consider selected coins if add_inputs is false
2265 956671 : if (coinControl && !coinControl->m_add_inputs && !coinControl->IsSelected(COutPoint(entry.first, i))) {
2266 : continue;
2267 : }
2268 :
2269 955384 : if (wtx.tx->vout[i].nValue < nMinimumAmount || wtx.tx->vout[i].nValue > nMaximumAmount)
2270 : continue;
2271 :
2272 767314 : if (coinControl && coinControl->HasSelected() && !coinControl->fAllowOtherInputs && !coinControl->IsSelected(COutPoint(entry.first, i)))
2273 : continue;
2274 :
2275 767314 : if (IsLockedCoin(entry.first, i))
2276 : continue;
2277 :
2278 767128 : if (IsSpent(wtxid, i))
2279 : continue;
2280 :
2281 412082 : isminetype mine = IsMine(wtx.tx->vout[i]);
2282 :
2283 412082 : if (mine == ISMINE_NO) {
2284 188733 : continue;
2285 : }
2286 :
2287 223349 : if (!allow_used_addresses && IsSpentKey(wtxid, i)) {
2288 6 : continue;
2289 : }
2290 :
2291 223343 : std::unique_ptr<SigningProvider> provider = GetSolvingProvider(wtx.tx->vout[i].scriptPubKey);
2292 :
2293 223343 : bool solvable = provider ? IsSolvable(*provider, wtx.tx->vout[i].scriptPubKey) : false;
2294 223386 : bool spendable = ((mine & ISMINE_SPENDABLE) != ISMINE_NO) || (((mine & ISMINE_WATCH_ONLY) != ISMINE_NO) && (coinControl && coinControl->fAllowWatchOnly && solvable));
2295 :
2296 223343 : vCoins.push_back(COutput(&wtx, i, nDepth, spendable, solvable, safeTx, (coinControl && coinControl->fAllowWatchOnly)));
2297 :
2298 : // Checks the sum amount of all UTXO's.
2299 223343 : if (nMinimumSumAmount != MAX_MONEY) {
2300 223343 : nTotal += wtx.tx->vout[i].nValue;
2301 :
2302 0 : if (nTotal >= nMinimumSumAmount) {
2303 0 : return;
2304 : }
2305 : }
2306 :
2307 : // Checks the maximum number of UTXO's.
2308 223343 : if (nMaximumCount > 0 && vCoins.size() >= nMaximumCount) {
2309 0 : return;
2310 : }
2311 223343 : }
2312 706134 : }
2313 3041 : }
2314 :
2315 3 : std::map<CTxDestination, std::vector<COutput>> CWallet::ListCoins() const
2316 : {
2317 3 : AssertLockHeld(cs_wallet);
2318 :
2319 3 : std::map<CTxDestination, std::vector<COutput>> result;
2320 3 : std::vector<COutput> availableCoins;
2321 :
2322 3 : AvailableCoins(availableCoins);
2323 :
2324 6 : for (const COutput& coin : availableCoins) {
2325 3 : CTxDestination address;
2326 6 : if ((coin.fSpendable || (IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) && coin.fSolvable)) &&
2327 3 : ExtractDestination(FindNonChangeParentOutput(*coin.tx->tx, coin.i).scriptPubKey, address)) {
2328 3 : result[address].emplace_back(std::move(coin));
2329 : }
2330 3 : }
2331 :
2332 3 : std::vector<COutPoint> lockedCoins;
2333 3 : ListLockedCoins(lockedCoins);
2334 : // Include watch-only for LegacyScriptPubKeyMan wallets without private keys
2335 3 : const bool include_watch_only = GetLegacyScriptPubKeyMan() && IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
2336 3 : const isminetype is_mine_filter = include_watch_only ? ISMINE_WATCH_ONLY : ISMINE_SPENDABLE;
2337 5 : for (const COutPoint& output : lockedCoins) {
2338 2 : auto it = mapWallet.find(output.hash);
2339 2 : if (it != mapWallet.end()) {
2340 2 : int depth = it->second.GetDepthInMainChain();
2341 4 : if (depth >= 0 && output.n < it->second.tx->vout.size() &&
2342 2 : IsMine(it->second.tx->vout[output.n]) == is_mine_filter
2343 : ) {
2344 2 : CTxDestination address;
2345 2 : if (ExtractDestination(FindNonChangeParentOutput(*it->second.tx, output.n).scriptPubKey, address)) {
2346 4 : result[address].emplace_back(
2347 2 : &it->second, output.n, depth, true /* spendable */, true /* solvable */, false /* safe */);
2348 2 : }
2349 2 : }
2350 2 : }
2351 2 : }
2352 :
2353 : return result;
2354 3 : }
2355 :
2356 5 : const CTxOut& CWallet::FindNonChangeParentOutput(const CTransaction& tx, int output) const
2357 : {
2358 5 : AssertLockHeld(cs_wallet);
2359 12 : const CTransaction* ptx = &tx;
2360 12 : int n = output;
2361 7 : while (IsChange(ptx->vout[n]) && ptx->vin.size() > 0) {
2362 7 : const COutPoint& prevout = ptx->vin[0].prevout;
2363 7 : auto it = mapWallet.find(prevout.hash);
2364 7 : if (it == mapWallet.end() || it->second.tx->vout.size() <= prevout.n ||
2365 2 : !IsMine(it->second.tx->vout[prevout.n])) {
2366 5 : break;
2367 : }
2368 2 : ptx = it->second.tx.get();
2369 2 : n = prevout.n;
2370 7 : }
2371 5 : return ptx->vout[n];
2372 : }
2373 :
2374 25524 : bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<OutputGroup> groups,
2375 : std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CoinSelectionParams& coin_selection_params, bool& bnb_used) const
2376 : {
2377 25524 : setCoinsRet.clear();
2378 25524 : nValueRet = 0;
2379 :
2380 25524 : std::vector<OutputGroup> utxo_pool;
2381 25524 : if (coin_selection_params.use_bnb) {
2382 : // Get long term estimate
2383 16533 : FeeCalculation feeCalc;
2384 16533 : CCoinControl temp;
2385 16533 : temp.m_confirm_target = 1008;
2386 16533 : CFeeRate long_term_feerate = GetMinimumFeeRate(*this, temp, &feeCalc);
2387 :
2388 : // Calculate cost of change
2389 16533 : CAmount cost_of_change = GetDiscardRate(*this).GetFee(coin_selection_params.change_spend_size) + coin_selection_params.effective_fee.GetFee(coin_selection_params.change_output_size);
2390 :
2391 : // Filter by the min conf specs and add to utxo_pool and calculate effective value
2392 818419 : for (OutputGroup& group : groups) {
2393 801886 : if (!group.EligibleForSpending(eligibility_filter)) continue;
2394 :
2395 781891 : if (coin_selection_params.m_subtract_fee_outputs) {
2396 : // Set the effective feerate to 0 as we don't want to use the effective value since the fees will be deducted from the output
2397 959 : group.SetFees(CFeeRate(0) /* effective_feerate */, long_term_feerate);
2398 : } else {
2399 780932 : group.SetFees(coin_selection_params.effective_fee, long_term_feerate);
2400 : }
2401 :
2402 781891 : OutputGroup pos_group = group.GetPositiveOnlyGroup();
2403 781891 : if (pos_group.effective_value > 0) utxo_pool.push_back(pos_group);
2404 781891 : }
2405 : // Calculate the fees for things that aren't inputs
2406 16533 : CAmount not_input_fees = coin_selection_params.effective_fee.GetFee(coin_selection_params.tx_noinputs_size);
2407 16533 : bnb_used = true;
2408 16533 : return SelectCoinsBnB(utxo_pool, nTargetValue, cost_of_change, setCoinsRet, nValueRet, not_input_fees);
2409 16533 : } else {
2410 : // Filter by the min conf specs and add to utxo_pool
2411 714984 : for (const OutputGroup& group : groups) {
2412 705993 : if (!group.EligibleForSpending(eligibility_filter)) continue;
2413 691870 : utxo_pool.push_back(group);
2414 691870 : }
2415 8991 : bnb_used = false;
2416 8991 : return KnapsackSolver(nTargetValue, utxo_pool, setCoinsRet, nValueRet);
2417 : }
2418 25524 : }
2419 :
2420 5389 : bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CCoinControl& coin_control, CoinSelectionParams& coin_selection_params, bool& bnb_used) const
2421 : {
2422 5389 : std::vector<COutput> vCoins(vAvailableCoins);
2423 5389 : CAmount value_to_select = nTargetValue;
2424 :
2425 : // Default to bnb was not used. If we use it, we set it later
2426 5389 : bnb_used = false;
2427 :
2428 : // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
2429 5389 : if (coin_control.HasSelected() && !coin_control.fAllowOtherInputs)
2430 : {
2431 0 : for (const COutput& out : vCoins)
2432 : {
2433 0 : if (!out.fSpendable)
2434 0 : continue;
2435 0 : nValueRet += out.tx->tx->vout[out.i].nValue;
2436 0 : setCoinsRet.insert(out.GetInputCoin());
2437 0 : }
2438 0 : return (nValueRet >= nTargetValue);
2439 : }
2440 :
2441 : // calculate value from preset inputs and store them
2442 5389 : std::set<CInputCoin> setPresetCoins;
2443 12735 : CAmount nValueFromPresetInputs = 0;
2444 :
2445 5389 : std::vector<COutPoint> vPresetInputs;
2446 5389 : coin_control.ListSelected(vPresetInputs);
2447 6368 : for (const COutPoint& outpoint : vPresetInputs)
2448 : {
2449 979 : std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
2450 979 : if (it != mapWallet.end())
2451 : {
2452 978 : const CWalletTx& wtx = it->second;
2453 : // Clearly invalid input, fail
2454 978 : if (wtx.tx->vout.size() <= outpoint.n) {
2455 0 : return false;
2456 : }
2457 : // Just to calculate the marginal byte size
2458 978 : CInputCoin coin(wtx.tx, outpoint.n, wtx.GetSpendSize(outpoint.n, false));
2459 978 : nValueFromPresetInputs += coin.txout.nValue;
2460 978 : if (coin.m_input_bytes <= 0) {
2461 0 : return false; // Not solvable, can't estimate size for fee
2462 : }
2463 978 : coin.effective_value = coin.txout.nValue - coin_selection_params.effective_fee.GetFee(coin.m_input_bytes);
2464 978 : if (coin_selection_params.use_bnb) {
2465 447 : value_to_select -= coin.effective_value;
2466 447 : } else {
2467 531 : value_to_select -= coin.txout.nValue;
2468 : }
2469 978 : setPresetCoins.insert(coin);
2470 978 : } else {
2471 1 : return false; // TODO: Allow non-wallet inputs
2472 : }
2473 979 : }
2474 :
2475 : // remove preset inputs from vCoins
2476 48788 : for (std::vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coin_control.HasSelected();)
2477 : {
2478 43400 : if (setPresetCoins.count(it->GetInputCoin()))
2479 152 : it = vCoins.erase(it);
2480 : else
2481 43248 : ++it;
2482 : }
2483 :
2484 5388 : unsigned int limit_ancestor_count = 0;
2485 5388 : unsigned int limit_descendant_count = 0;
2486 5388 : chain().getPackageLimits(limit_ancestor_count, limit_descendant_count);
2487 5388 : size_t max_ancestors = (size_t)std::max<int64_t>(1, limit_ancestor_count);
2488 5388 : size_t max_descendants = (size_t)std::max<int64_t>(1, limit_descendant_count);
2489 5388 : bool fRejectLongChains = gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS);
2490 :
2491 : // form groups from remaining coins; note that preset coins will not
2492 : // automatically have their associated (same address) coins included
2493 5388 : if (coin_control.m_avoid_partial_spends && vCoins.size() > OUTPUT_GROUP_MAX_ENTRIES) {
2494 : // Cases where we have 11+ outputs all pointing to the same destination may result in
2495 : // privacy leaks as they will potentially be deterministically sorted. We solve that by
2496 : // explicitly shuffling the outputs before processing
2497 1952 : Shuffle(vCoins.begin(), vCoins.end(), FastRandomContext());
2498 1952 : }
2499 5388 : std::vector<OutputGroup> groups = GroupOutputs(vCoins, !coin_control.m_avoid_partial_spends, max_ancestors);
2500 :
2501 15189 : bool res = value_to_select <= 0 ||
2502 4975 : SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 6, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
2503 2738 : SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 1, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
2504 2590 : (m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, 2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
2505 2413 : (m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, std::min((size_t)4, max_ancestors/3), std::min((size_t)4, max_descendants/3)), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
2506 2383 : (m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors/2, max_descendants/2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
2507 2373 : (m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors-1, max_descendants-1), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
2508 2343 : (m_spend_zero_conf_change && !fRejectLongChains && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, std::numeric_limits<uint64_t>::max()), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used));
2509 :
2510 : // because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
2511 5388 : util::insert(setCoinsRet, setPresetCoins);
2512 :
2513 : // add preset inputs to the total value selected
2514 5388 : nValueRet += nValueFromPresetInputs;
2515 :
2516 : return res;
2517 5389 : }
2518 :
2519 2254 : bool CWallet::SignTransaction(CMutableTransaction& tx) const
2520 : {
2521 2254 : AssertLockHeld(cs_wallet);
2522 :
2523 : // Build coins map
2524 2254 : std::map<COutPoint, Coin> coins;
2525 11033 : for (auto& input : tx.vin) {
2526 8779 : std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(input.prevout.hash);
2527 8779 : if(mi == mapWallet.end() || input.prevout.n >= mi->second.tx->vout.size()) {
2528 0 : return false;
2529 : }
2530 8779 : const CWalletTx& wtx = mi->second;
2531 8779 : coins[input.prevout] = Coin(wtx.tx->vout[input.prevout.n], wtx.m_confirm.block_height, wtx.IsCoinBase());
2532 8779 : }
2533 2254 : std::map<int, std::string> input_errors;
2534 2254 : return SignTransaction(tx, coins, SIGHASH_ALL, input_errors);
2535 2254 : }
2536 :
2537 3893 : bool CWallet::SignTransaction(CMutableTransaction& tx, const std::map<COutPoint, Coin>& coins, int sighash, std::map<int, std::string>& input_errors) const
2538 : {
2539 : // Try to sign with all ScriptPubKeyMans
2540 8957 : for (ScriptPubKeyMan* spk_man : GetAllScriptPubKeyMans()) {
2541 : // spk_man->SignTransaction will return true if the transaction is complete,
2542 : // so we can exit early and return true if that happens
2543 5064 : if (spk_man->SignTransaction(tx, coins, sighash, input_errors)) {
2544 3883 : return true;
2545 : }
2546 1181 : }
2547 :
2548 : // At this point, one input was not fully signed otherwise we would have exited already
2549 10 : return false;
2550 3893 : }
2551 :
2552 187 : TransactionError CWallet::FillPSBT(PartiallySignedTransaction& psbtx, bool& complete, int sighash_type, bool sign, bool bip32derivs, size_t * n_signed) const
2553 : {
2554 187 : if (n_signed) {
2555 0 : *n_signed = 0;
2556 0 : }
2557 187 : LOCK(cs_wallet);
2558 : // Get all of the previous transactions
2559 449 : for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
2560 262 : const CTxIn& txin = psbtx.tx->vin[i];
2561 262 : PSBTInput& input = psbtx.inputs.at(i);
2562 :
2563 262 : if (PSBTInputSigned(input)) {
2564 4 : continue;
2565 : }
2566 :
2567 : // If we have no utxo, grab it from the wallet.
2568 258 : if (!input.non_witness_utxo) {
2569 208 : const uint256& txhash = txin.prevout.hash;
2570 208 : const auto it = mapWallet.find(txhash);
2571 208 : if (it != mapWallet.end()) {
2572 182 : const CWalletTx& wtx = it->second;
2573 : // We only need the non_witness_utxo, which is a superset of the witness_utxo.
2574 : // The signing code will switch to the smaller witness_utxo if this is ok.
2575 182 : input.non_witness_utxo = wtx.tx;
2576 182 : }
2577 208 : }
2578 258 : }
2579 :
2580 : // Fill in information from ScriptPubKeyMans
2581 591 : for (ScriptPubKeyMan* spk_man : GetAllScriptPubKeyMans()) {
2582 404 : int n_signed_this_spkm = 0;
2583 404 : TransactionError res = spk_man->FillPSBT(psbtx, sighash_type, sign, bip32derivs, &n_signed_this_spkm);
2584 404 : if (res != TransactionError::OK) {
2585 2 : return res;
2586 : }
2587 :
2588 402 : if (n_signed) {
2589 0 : (*n_signed) += n_signed_this_spkm;
2590 0 : }
2591 404 : }
2592 :
2593 : // Complete if every input is now signed
2594 185 : complete = true;
2595 443 : for (const auto& input : psbtx.inputs) {
2596 258 : complete &= PSBTInputSigned(input);
2597 : }
2598 :
2599 185 : return TransactionError::OK;
2600 187 : }
2601 :
2602 12 : SigningResult CWallet::SignMessage(const std::string& message, const PKHash& pkhash, std::string& str_sig) const
2603 : {
2604 12 : SignatureData sigdata;
2605 12 : CScript script_pub_key = GetScriptForDestination(pkhash);
2606 31 : for (const auto& spk_man_pair : m_spk_managers) {
2607 19 : if (spk_man_pair.second->CanProvide(script_pub_key, sigdata)) {
2608 12 : return spk_man_pair.second->SignMessage(message, pkhash, str_sig);
2609 : }
2610 7 : }
2611 0 : return SigningResult::PRIVATE_KEY_NOT_AVAILABLE;
2612 12 : }
2613 :
2614 156 : bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, bilingual_str& error, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, CCoinControl coinControl)
2615 : {
2616 156 : std::vector<CRecipient> vecSend;
2617 :
2618 : // Turn the txout set into a CRecipient vector.
2619 11929 : for (size_t idx = 0; idx < tx.vout.size(); idx++) {
2620 11773 : const CTxOut& txOut = tx.vout[idx];
2621 11773 : CRecipient recipient = {txOut.scriptPubKey, txOut.nValue, setSubtractFeeFromOutputs.count(idx) == 1};
2622 11773 : vecSend.push_back(recipient);
2623 11773 : }
2624 :
2625 156 : coinControl.fAllowOtherInputs = true;
2626 :
2627 233 : for (const CTxIn& txin : tx.vin) {
2628 77 : coinControl.Select(txin.prevout);
2629 : }
2630 :
2631 : // Acquire the locks to prevent races to the new locked unspents between the
2632 : // CreateTransaction call and LockCoin calls (when lockUnspents is true).
2633 156 : LOCK(cs_wallet);
2634 :
2635 156 : CTransactionRef tx_new;
2636 156 : if (!CreateTransaction(vecSend, tx_new, nFeeRet, nChangePosInOut, error, coinControl, false)) {
2637 28 : return false;
2638 : }
2639 :
2640 128 : if (nChangePosInOut != -1) {
2641 113 : tx.vout.insert(tx.vout.begin() + nChangePosInOut, tx_new->vout[nChangePosInOut]);
2642 113 : }
2643 :
2644 : // Copy output sizes from new transaction; they may have had the fee
2645 : // subtracted from them.
2646 10389 : for (unsigned int idx = 0; idx < tx.vout.size(); idx++) {
2647 10261 : tx.vout[idx].nValue = tx_new->vout[idx].nValue;
2648 : }
2649 :
2650 : // Add new txins while keeping original txin scriptSig/order.
2651 343 : for (const CTxIn& txin : tx_new->vin) {
2652 215 : if (!coinControl.IsSelected(txin.prevout)) {
2653 160 : tx.vin.push_back(txin);
2654 :
2655 : }
2656 215 : if (lockUnspents) {
2657 7 : LockCoin(txin.prevout);
2658 : }
2659 :
2660 : }
2661 :
2662 128 : return true;
2663 156 : }
2664 :
2665 2640 : static bool IsCurrentForAntiFeeSniping(interfaces::Chain& chain, const uint256& block_hash)
2666 : {
2667 2640 : if (chain.isInitialBlockDownload()) {
2668 4 : return false;
2669 : }
2670 : constexpr int64_t MAX_ANTI_FEE_SNIPING_TIP_AGE = 8 * 60 * 60; // in seconds
2671 2636 : int64_t block_time;
2672 2636 : CHECK_NONFATAL(chain.findBlock(block_hash, FoundBlock().time(block_time)));
2673 2636 : if (block_time < (GetTime() - MAX_ANTI_FEE_SNIPING_TIP_AGE)) {
2674 10 : return false;
2675 : }
2676 2626 : return true;
2677 2640 : }
2678 :
2679 : /**
2680 : * Return a height-based locktime for new transactions (uses the height of the
2681 : * current chain tip unless we are not synced with the current chain
2682 : */
2683 2640 : static uint32_t GetLocktimeForNewTransaction(interfaces::Chain& chain, const uint256& block_hash, int block_height)
2684 : {
2685 : uint32_t locktime;
2686 : // Discourage fee sniping.
2687 : //
2688 : // For a large miner the value of the transactions in the best block and
2689 : // the mempool can exceed the cost of deliberately attempting to mine two
2690 : // blocks to orphan the current best block. By setting nLockTime such that
2691 : // only the next block can include the transaction, we discourage this
2692 : // practice as the height restricted and limited blocksize gives miners
2693 : // considering fee sniping fewer options for pulling off this attack.
2694 : //
2695 : // A simple way to think about this is from the wallet's point of view we
2696 : // always want the blockchain to move forward. By setting nLockTime this
2697 : // way we're basically making the statement that we only want this
2698 : // transaction to appear in the next block; we don't want to potentially
2699 : // encourage reorgs by allowing transactions to appear at lower heights
2700 : // than the next block in forks of the best chain.
2701 : //
2702 : // Of course, the subsidy is high enough, and transaction volume low
2703 : // enough, that fee sniping isn't a problem yet, but by implementing a fix
2704 : // now we ensure code won't be written that makes assumptions about
2705 : // nLockTime that preclude a fix later.
2706 2640 : if (IsCurrentForAntiFeeSniping(chain, block_hash)) {
2707 : locktime = block_height;
2708 :
2709 : // Secondly occasionally randomly pick a nLockTime even further back, so
2710 : // that transactions that are delayed after signing for whatever reason,
2711 : // e.g. high-latency mix networks and some CoinJoin implementations, have
2712 : // better privacy.
2713 2626 : if (GetRandInt(10) == 0)
2714 266 : locktime = std::max(0, (int)locktime - GetRandInt(100));
2715 : } else {
2716 : // If our chain is lagging behind, we can't discourage fee sniping nor help
2717 : // the privacy of high-latency transactions. To avoid leaking a potentially
2718 : // unique "nLockTime fingerprint", set nLockTime to a constant.
2719 : locktime = 0;
2720 : }
2721 2640 : assert(locktime < LOCKTIME_THRESHOLD);
2722 2640 : return locktime;
2723 : }
2724 :
2725 2640 : OutputType CWallet::TransactionChangeType(const Optional<OutputType>& change_type, const std::vector<CRecipient>& vecSend)
2726 : {
2727 : // If -changetype is specified, always use that change type.
2728 2640 : if (change_type) {
2729 18 : return *change_type;
2730 : }
2731 :
2732 : // if m_default_address_type is legacy, use legacy address as change (even
2733 : // if some of the outputs are P2WPKH or P2WSH).
2734 2622 : if (m_default_address_type == OutputType::LEGACY) {
2735 32 : return OutputType::LEGACY;
2736 : }
2737 :
2738 : // if any destination is P2WPKH or P2WSH, use P2WPKH for the change
2739 : // output.
2740 5204 : for (const auto& recipient : vecSend) {
2741 : // Check if any destination contains a witness program:
2742 2614 : int witnessversion = 0;
2743 2614 : std::vector<unsigned char> witnessprogram;
2744 2614 : if (recipient.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) {
2745 1979 : return OutputType::BECH32;
2746 : }
2747 2614 : }
2748 :
2749 : // else use m_default_address_type for change
2750 611 : return m_default_address_type;
2751 2640 : }
2752 :
2753 2640 : bool CWallet::CreateTransactionInternal(
2754 : const std::vector<CRecipient>& vecSend,
2755 : CTransactionRef& tx,
2756 : CAmount& nFeeRet,
2757 : int& nChangePosInOut,
2758 : bilingual_str& error,
2759 : const CCoinControl& coin_control,
2760 : bool sign)
2761 : {
2762 34035 : CAmount nValue = 0;
2763 2640 : const OutputType change_type = TransactionChangeType(coin_control.m_change_type ? *coin_control.m_change_type : m_default_change_type, vecSend);
2764 2640 : ReserveDestination reservedest(this, change_type);
2765 2640 : int nChangePosRequest = nChangePosInOut;
2766 34035 : unsigned int nSubtractFeeFromAmount = 0;
2767 31395 : for (const auto& recipient : vecSend)
2768 : {
2769 28755 : if (nValue < 0 || recipient.nAmount < 0)
2770 : {
2771 0 : error = _("Transaction amounts must not be negative");
2772 0 : return false;
2773 : }
2774 28755 : nValue += recipient.nAmount;
2775 :
2776 28755 : if (recipient.fSubtractFeeFromAmount)
2777 93 : nSubtractFeeFromAmount++;
2778 28755 : }
2779 2640 : if (vecSend.empty())
2780 : {
2781 0 : error = _("Transaction must have at least one recipient");
2782 0 : return false;
2783 : }
2784 :
2785 2640 : CMutableTransaction txNew;
2786 2640 : FeeCalculation feeCalc;
2787 : CAmount nFeeNeeded;
2788 : int nBytes;
2789 : {
2790 2640 : std::set<CInputCoin> setCoins;
2791 2640 : LOCK(cs_wallet);
2792 2640 : txNew.nLockTime = GetLocktimeForNewTransaction(chain(), GetLastBlockHash(), GetLastBlockHeight());
2793 : {
2794 2640 : std::vector<COutput> vAvailableCoins;
2795 2640 : AvailableCoins(vAvailableCoins, true, &coin_control, 1, MAX_MONEY, MAX_MONEY, 0);
2796 2640 : CoinSelectionParams coin_selection_params; // Parameters for coin selection, init with dummy
2797 :
2798 : // Create change script that will be used if we need change
2799 : // TODO: pass in scriptChange instead of reservedest so
2800 : // change transaction isn't always pay-to-bitcoin-address
2801 2640 : CScript scriptChange;
2802 :
2803 : // coin control: send change to custom address
2804 2640 : if (!boost::get<CNoDestination>(&coin_control.destChange)) {
2805 209 : scriptChange = GetScriptForDestination(coin_control.destChange);
2806 209 : } else { // no coin control: send change to newly generated address
2807 : // Note: We use a new key here to keep it from being obvious which side is the change.
2808 : // The drawback is that by not reusing a previous key, the change may be lost if a
2809 : // backup is restored, if the backup doesn't have the new private key for the change.
2810 : // If we reused the old key, it would be possible to add code to look for and
2811 : // rediscover unknown transactions that were written with keys of ours to recover
2812 : // post-backup change.
2813 :
2814 : // Reserve a new key pair from key pool. If it fails, provide a dummy
2815 : // destination in case we don't need change.
2816 2431 : CTxDestination dest;
2817 2431 : if (!reservedest.GetReservedDestination(dest, true)) {
2818 26 : error = _("Transaction needs a change address, but we can't generate it. Please call keypoolrefill first.");
2819 26 : }
2820 2431 : scriptChange = GetScriptForDestination(dest);
2821 : // A valid destination implies a change script (and
2822 : // vice-versa). An empty change script will abort later, if the
2823 : // change keypool ran out, but change is required.
2824 2431 : CHECK_NONFATAL(IsValidDestination(dest) != scriptChange.empty());
2825 2431 : }
2826 2640 : CTxOut change_prototype_txout(0, scriptChange);
2827 2640 : coin_selection_params.change_output_size = GetSerializeSize(change_prototype_txout);
2828 :
2829 2640 : CFeeRate discard_rate = GetDiscardRate(*this);
2830 :
2831 : // Get the fee rate to use effective values in coin selection
2832 2640 : CFeeRate nFeeRateNeeded = GetMinimumFeeRate(*this, coin_control, &feeCalc);
2833 : // Do not, ever, assume that it's fine to change the fee rate if the user has explicitly
2834 : // provided one
2835 2640 : if (coin_control.m_feerate && nFeeRateNeeded > *coin_control.m_feerate) {
2836 2 : error = strprintf(_("Fee rate (%s) is lower than the minimum fee rate setting (%s)"), coin_control.m_feerate->ToString(), nFeeRateNeeded.ToString());
2837 2 : return false;
2838 : }
2839 :
2840 2638 : nFeeRet = 0;
2841 8115 : bool pick_new_inputs = true;
2842 2638 : CAmount nValueIn = 0;
2843 :
2844 : // BnB selector is the only selector used when this is true.
2845 : // That should only happen on the first pass through the loop.
2846 2638 : coin_selection_params.use_bnb = true;
2847 2638 : coin_selection_params.m_subtract_fee_outputs = nSubtractFeeFromAmount != 0; // If we are doing subtract fee from recipient, don't use effective values
2848 : // Start with no fee and loop until there is enough fee
2849 2638 : while (true)
2850 : {
2851 5477 : nChangePosInOut = nChangePosRequest;
2852 5477 : txNew.vin.clear();
2853 5477 : txNew.vout.clear();
2854 : bool fFirst = true;
2855 :
2856 5477 : CAmount nValueToSelect = nValue;
2857 5477 : if (nSubtractFeeFromAmount == 0)
2858 5281 : nValueToSelect += nFeeRet;
2859 :
2860 : // vouts to the payees
2861 5477 : if (!coin_selection_params.m_subtract_fee_outputs) {
2862 5281 : coin_selection_params.tx_noinputs_size = 11; // Static vsize overhead + outputs vsize. 4 nVersion, 4 nLocktime, 1 input count, 1 output count, 1 witness overhead (dummy, flag, stack size)
2863 5281 : }
2864 75765 : for (const auto& recipient : vecSend)
2865 : {
2866 70288 : CTxOut txout(recipient.nAmount, recipient.scriptPubKey);
2867 :
2868 70288 : if (recipient.fSubtractFeeFromAmount)
2869 : {
2870 208 : assert(nSubtractFeeFromAmount != 0);
2871 208 : txout.nValue -= nFeeRet / nSubtractFeeFromAmount; // Subtract fee equally from each selected recipient
2872 :
2873 208 : if (fFirst) // first receiver pays the remainder not divisible by output count
2874 : {
2875 : fFirst = false;
2876 196 : txout.nValue -= nFeeRet % nSubtractFeeFromAmount;
2877 196 : }
2878 : }
2879 : // Include the fee cost for outputs. Note this is only used for BnB right now
2880 70288 : if (!coin_selection_params.m_subtract_fee_outputs) {
2881 70074 : coin_selection_params.tx_noinputs_size += ::GetSerializeSize(txout, PROTOCOL_VERSION);
2882 70074 : }
2883 :
2884 70288 : if (IsDust(txout, chain().relayDustFee()))
2885 : {
2886 0 : if (recipient.fSubtractFeeFromAmount && nFeeRet > 0)
2887 : {
2888 0 : if (txout.nValue < 0)
2889 0 : error = _("The transaction amount is too small to pay the fee");
2890 : else
2891 0 : error = _("The transaction amount is too small to send after the fee has been deducted");
2892 : }
2893 : else
2894 0 : error = _("Transaction amount too small");
2895 6282 : return false;
2896 : }
2897 70288 : txNew.vout.push_back(txout);
2898 70288 : }
2899 :
2900 : // Choose coins to use
2901 5477 : bool bnb_used = false;
2902 5477 : if (pick_new_inputs) {
2903 5388 : nValueIn = 0;
2904 5388 : setCoins.clear();
2905 5388 : int change_spend_size = CalculateMaximumSignedInputSize(change_prototype_txout, this);
2906 : // If the wallet doesn't know how to sign change output, assume p2sh-p2wpkh
2907 : // as lower-bound to allow BnB to do it's thing
2908 5388 : if (change_spend_size == -1) {
2909 51 : coin_selection_params.change_spend_size = DUMMY_NESTED_P2WPKH_INPUT_SIZE;
2910 51 : } else {
2911 5337 : coin_selection_params.change_spend_size = (size_t)change_spend_size;
2912 : }
2913 5388 : coin_selection_params.effective_fee = nFeeRateNeeded;
2914 5388 : if (!SelectCoins(vAvailableCoins, nValueToSelect, setCoins, nValueIn, coin_control, coin_selection_params, bnb_used))
2915 : {
2916 : // If BnB was used, it was the first pass. No longer the first pass and continue loop with knapsack.
2917 2336 : if (bnb_used) {
2918 2317 : coin_selection_params.use_bnb = false;
2919 2317 : continue;
2920 : }
2921 : else {
2922 19 : error = _("Insufficient funds");
2923 19 : return false;
2924 : }
2925 : }
2926 3052 : } else {
2927 89 : bnb_used = false;
2928 : }
2929 :
2930 3141 : const CAmount nChange = nValueIn - nValueToSelect;
2931 3141 : if (nChange > 0)
2932 : {
2933 : // Fill a vout to ourself
2934 2739 : CTxOut newTxOut(nChange, scriptChange);
2935 :
2936 : // Never create dust outputs; if we would, just
2937 : // add the dust to the fee.
2938 : // The nChange when BnB is used is always going to go to fees.
2939 2739 : if (IsDust(newTxOut, discard_rate) || bnb_used)
2940 : {
2941 21 : nChangePosInOut = -1;
2942 21 : nFeeRet += nChange;
2943 21 : }
2944 : else
2945 : {
2946 2718 : if (nChangePosInOut == -1)
2947 : {
2948 : // Insert change txn at random position:
2949 2708 : nChangePosInOut = GetRandInt(txNew.vout.size()+1);
2950 2708 : }
2951 10 : else if ((unsigned int)nChangePosInOut > txNew.vout.size())
2952 : {
2953 0 : error = _("Change index out of range");
2954 0 : return false;
2955 : }
2956 :
2957 2718 : std::vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosInOut;
2958 2718 : txNew.vout.insert(position, newTxOut);
2959 2718 : }
2960 2739 : } else {
2961 402 : nChangePosInOut = -1;
2962 : }
2963 :
2964 : // Dummy fill vin for maximum size estimation
2965 : //
2966 16994 : for (const auto& coin : setCoins) {
2967 13853 : txNew.vin.push_back(CTxIn(coin.outpoint,CScript()));
2968 : }
2969 :
2970 3141 : nBytes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly);
2971 3141 : if (nBytes < 0) {
2972 0 : error = _("Signing transaction failed");
2973 0 : return false;
2974 : }
2975 :
2976 3141 : nFeeNeeded = GetMinimumFee(*this, nBytes, coin_control, &feeCalc);
2977 3141 : if (feeCalc.reason == FeeReason::FALLBACK && !m_allow_fallback_fee) {
2978 : // eventually allow a fallback fee
2979 3 : error = _("Fee estimation failed. Fallbackfee is disabled. Wait a few blocks or enable -fallbackfee.");
2980 3 : return false;
2981 : }
2982 :
2983 3138 : if (nFeeRet >= nFeeNeeded) {
2984 : // Reduce fee to only the needed amount if possible. This
2985 : // prevents potential overpayment in fees if the coins
2986 : // selected to meet nFeeNeeded result in a transaction that
2987 : // requires less fee than the prior iteration.
2988 :
2989 : // If we have no change and a big enough excess fee, then
2990 : // try to construct transaction again only without picking
2991 : // new inputs. We now know we only need the smaller fee
2992 : // (because of reduced tx size) and so we should add a
2993 : // change output. Only try this once.
2994 302 : if (nChangePosInOut == -1 && nSubtractFeeFromAmount == 0 && pick_new_inputs) {
2995 21 : unsigned int tx_size_with_change = nBytes + coin_selection_params.change_output_size + 2; // Add 2 as a buffer in case increasing # of outputs changes compact size
2996 21 : CAmount fee_needed_with_change = GetMinimumFee(*this, tx_size_with_change, coin_control, nullptr);
2997 21 : CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, discard_rate);
2998 21 : if (nFeeRet >= fee_needed_with_change + minimum_value_for_change) {
2999 : pick_new_inputs = false;
3000 0 : nFeeRet = fee_needed_with_change;
3001 0 : continue;
3002 : }
3003 21 : }
3004 :
3005 : // If we have change output already, just increase it
3006 302 : if (nFeeRet > nFeeNeeded && nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
3007 26 : CAmount extraFeePaid = nFeeRet - nFeeNeeded;
3008 26 : std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
3009 26 : change_position->nValue += extraFeePaid;
3010 26 : nFeeRet -= extraFeePaid;
3011 26 : }
3012 302 : break; // Done, enough fee included.
3013 : }
3014 2836 : else if (!pick_new_inputs) {
3015 : // This shouldn't happen, we should have had enough excess
3016 : // fee to pay for the new output and still meet nFeeNeeded
3017 : // Or we should have just subtracted fee from recipients and
3018 : // nFeeNeeded should not have changed
3019 0 : error = _("Transaction fee and change calculation failed");
3020 0 : return false;
3021 : }
3022 :
3023 : // Try to reduce change to include necessary fee
3024 2836 : if (nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
3025 2494 : CAmount additionalFeeNeeded = nFeeNeeded - nFeeRet;
3026 2494 : std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
3027 : // Only reduce change if remaining amount is still a large enough output.
3028 2494 : if (change_position->nValue >= MIN_FINAL_CHANGE + additionalFeeNeeded) {
3029 2314 : change_position->nValue -= additionalFeeNeeded;
3030 2314 : nFeeRet += additionalFeeNeeded;
3031 2314 : break; // Done, able to increase fee from change
3032 : }
3033 2494 : }
3034 :
3035 : // If subtracting fee from recipients, we now know what fee we
3036 : // need to subtract, we have no reason to reselect inputs
3037 522 : if (nSubtractFeeFromAmount > 0) {
3038 : pick_new_inputs = false;
3039 89 : }
3040 :
3041 : // Include more fee and try again.
3042 522 : nFeeRet = nFeeNeeded;
3043 522 : coin_selection_params.use_bnb = false;
3044 522 : continue;
3045 5477 : }
3046 :
3047 : // Give up if change keypool ran out and change is required
3048 2616 : if (scriptChange.empty() && nChangePosInOut != -1) {
3049 4 : return false;
3050 : }
3051 2640 : }
3052 :
3053 : // Shuffle selected coins and fill in final vin
3054 2612 : txNew.vin.clear();
3055 2612 : std::vector<CInputCoin> selected_coins(setCoins.begin(), setCoins.end());
3056 2612 : Shuffle(selected_coins.begin(), selected_coins.end(), FastRandomContext());
3057 :
3058 : // Note how the sequence number is set to non-maxint so that
3059 : // the nLockTime set above actually works.
3060 : //
3061 : // BIP125 defines opt-in RBF as any nSequence < maxint-1, so
3062 : // we use the highest possible value in that range (maxint-2)
3063 : // to avoid conflicting with other possible uses of nSequence,
3064 : // and in the spirit of "smallest possible change from prior
3065 : // behavior."
3066 2612 : const uint32_t nSequence = coin_control.m_signal_bip125_rbf.get_value_or(m_signal_rbf) ? MAX_BIP125_RBF_SEQUENCE : (CTxIn::SEQUENCE_FINAL - 1);
3067 12192 : for (const auto& coin : selected_coins) {
3068 9580 : txNew.vin.push_back(CTxIn(coin.outpoint, CScript(), nSequence));
3069 : }
3070 :
3071 2612 : if (sign && !SignTransaction(txNew)) {
3072 0 : error = _("Signing transaction failed");
3073 0 : return false;
3074 : }
3075 :
3076 : // Return the constructed transaction data.
3077 2612 : tx = MakeTransactionRef(std::move(txNew));
3078 :
3079 : // Limit size
3080 2612 : if (GetTransactionWeight(*tx) > MAX_STANDARD_TX_WEIGHT)
3081 : {
3082 0 : error = _("Transaction too large");
3083 0 : return false;
3084 : }
3085 2640 : }
3086 :
3087 2612 : if (nFeeRet > m_default_max_tx_fee) {
3088 16 : error = TransactionErrorString(TransactionError::MAX_FEE_EXCEEDED);
3089 16 : return false;
3090 : }
3091 :
3092 2596 : if (gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) {
3093 : // Lastly, ensure this tx will pass the mempool's chain limits
3094 6 : if (!chain().checkChainLimits(tx)) {
3095 2 : error = _("Transaction has too long of a mempool chain");
3096 2 : return false;
3097 : }
3098 : }
3099 :
3100 : // Before we return success, we assume any change key will be used to prevent
3101 : // accidental re-use.
3102 2594 : reservedest.KeepDestination();
3103 :
3104 5188 : WalletLogPrintf("Fee Calculation: Fee:%d Bytes:%u Needed:%d Tgt:%d (requested %d) Reason:\"%s\" Decay %.5f: Estimation: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out) Fail: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out)\n",
3105 2594 : nFeeRet, nBytes, nFeeNeeded, feeCalc.returnedTarget, feeCalc.desiredTarget, StringForFeeReason(feeCalc.reason), feeCalc.est.decay,
3106 2594 : feeCalc.est.pass.start, feeCalc.est.pass.end,
3107 2594 : 100 * feeCalc.est.pass.withinTarget / (feeCalc.est.pass.totalConfirmed + feeCalc.est.pass.inMempool + feeCalc.est.pass.leftMempool),
3108 : feeCalc.est.pass.withinTarget, feeCalc.est.pass.totalConfirmed, feeCalc.est.pass.inMempool, feeCalc.est.pass.leftMempool,
3109 2594 : feeCalc.est.fail.start, feeCalc.est.fail.end,
3110 2594 : 100 * feeCalc.est.fail.withinTarget / (feeCalc.est.fail.totalConfirmed + feeCalc.est.fail.inMempool + feeCalc.est.fail.leftMempool),
3111 : feeCalc.est.fail.withinTarget, feeCalc.est.fail.totalConfirmed, feeCalc.est.fail.inMempool, feeCalc.est.fail.leftMempool);
3112 2594 : return true;
3113 2640 : }
3114 :
3115 1353 : bool CWallet::CreateTransaction(
3116 : const std::vector<CRecipient>& vecSend,
3117 : CTransactionRef& tx,
3118 : CAmount& nFeeRet,
3119 : int& nChangePosInOut,
3120 : bilingual_str& error,
3121 : const CCoinControl& coin_control,
3122 : bool sign)
3123 : {
3124 1353 : int nChangePosIn = nChangePosInOut;
3125 1353 : CTransactionRef tx2 = tx;
3126 1353 : bool res = CreateTransactionInternal(vecSend, tx, nFeeRet, nChangePosInOut, error, coin_control, sign);
3127 : // try with avoidpartialspends unless it's enabled already
3128 1353 : if (res && nFeeRet > 0 /* 0 means non-functional fee rate estimation */ && m_max_aps_fee > -1 && !coin_control.m_avoid_partial_spends) {
3129 1287 : CCoinControl tmp_cc = coin_control;
3130 1287 : tmp_cc.m_avoid_partial_spends = true;
3131 1287 : CAmount nFeeRet2;
3132 1287 : int nChangePosInOut2 = nChangePosIn;
3133 1287 : bilingual_str error2; // fired and forgotten; if an error occurs, we discard the results
3134 1287 : if (CreateTransactionInternal(vecSend, tx2, nFeeRet2, nChangePosInOut2, error2, tmp_cc, sign)) {
3135 : // if fee of this alternative one is within the range of the max fee, we use this one
3136 1284 : const bool use_aps = nFeeRet2 <= nFeeRet + m_max_aps_fee;
3137 1284 : WalletLogPrintf("Fee non-grouped = %lld, grouped = %lld, using %s\n", nFeeRet, nFeeRet2, use_aps ? "grouped" : "non-grouped");
3138 1284 : if (use_aps) {
3139 972 : tx = tx2;
3140 972 : nFeeRet = nFeeRet2;
3141 972 : nChangePosInOut = nChangePosInOut2;
3142 972 : }
3143 1284 : }
3144 1287 : }
3145 : return res;
3146 1353 : }
3147 :
3148 1184 : void CWallet::CommitTransaction(CTransactionRef tx, mapValue_t mapValue, std::vector<std::pair<std::string, std::string>> orderForm)
3149 : {
3150 1184 : LOCK(cs_wallet);
3151 1184 : WalletLogPrintf("CommitTransaction:\n%s", tx->ToString()); /* Continued */
3152 :
3153 : // Add tx to wallet, because if it has change it's also ours,
3154 : // otherwise just for transaction history.
3155 2368 : AddToWallet(tx, {}, [&](CWalletTx& wtx, bool new_tx) {
3156 1184 : CHECK_NONFATAL(wtx.mapValue.empty());
3157 1184 : CHECK_NONFATAL(wtx.vOrderForm.empty());
3158 1184 : wtx.mapValue = std::move(mapValue);
3159 1184 : wtx.vOrderForm = std::move(orderForm);
3160 1184 : wtx.fTimeReceivedIsTxTime = true;
3161 1184 : wtx.fFromMe = true;
3162 1184 : return true;
3163 0 : });
3164 :
3165 : // Notify that old coins are spent
3166 4683 : for (const CTxIn& txin : tx->vin) {
3167 3499 : CWalletTx &coin = mapWallet.at(txin.prevout.hash);
3168 3499 : coin.MarkDirty();
3169 3499 : NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
3170 : }
3171 :
3172 : // Get the inserted-CWalletTx from mapWallet so that the
3173 : // fInMempool flag is cached properly
3174 1184 : CWalletTx& wtx = mapWallet.at(tx->GetHash());
3175 :
3176 1184 : if (!fBroadcastTransactions) {
3177 : // Don't submit tx to the mempool
3178 5 : return;
3179 : }
3180 :
3181 1179 : std::string err_string;
3182 1179 : if (!wtx.SubmitMemoryPoolAndRelay(err_string, true)) {
3183 4 : WalletLogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", err_string);
3184 : // TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
3185 4 : }
3186 1184 : }
3187 :
3188 751 : DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
3189 : {
3190 751 : LOCK(cs_wallet);
3191 :
3192 751 : fFirstRunRet = false;
3193 757 : DBErrors nLoadWalletRet = WalletBatch(*database,"cr+").LoadWallet(this);
3194 745 : if (nLoadWalletRet == DBErrors::NEED_REWRITE)
3195 : {
3196 0 : if (database->Rewrite("\x04pool"))
3197 : {
3198 0 : for (const auto& spk_man_pair : m_spk_managers) {
3199 0 : spk_man_pair.second->RewriteDB();
3200 0 : }
3201 0 : }
3202 : }
3203 :
3204 : // This wallet is in its first run if there are no ScriptPubKeyMans and it isn't blank or no privkeys
3205 745 : fFirstRunRet = m_spk_managers.empty() && !IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) && !IsWalletFlagSet(WALLET_FLAG_BLANK_WALLET);
3206 745 : if (fFirstRunRet) {
3207 432 : assert(m_external_spk_managers.empty());
3208 432 : assert(m_internal_spk_managers.empty());
3209 : }
3210 :
3211 745 : if (nLoadWalletRet != DBErrors::LOAD_OK)
3212 0 : return nLoadWalletRet;
3213 :
3214 745 : return DBErrors::LOAD_OK;
3215 751 : }
3216 :
3217 4 : DBErrors CWallet::ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut)
3218 : {
3219 4 : AssertLockHeld(cs_wallet);
3220 4 : DBErrors nZapSelectTxRet = WalletBatch(*database, "cr+").ZapSelectTx(vHashIn, vHashOut);
3221 7 : for (const uint256& hash : vHashOut) {
3222 3 : const auto& it = mapWallet.find(hash);
3223 3 : wtxOrdered.erase(it->second.m_it_wtxOrdered);
3224 6 : for (const auto& txin : it->second.tx->vin)
3225 3 : mapTxSpends.erase(txin.prevout);
3226 3 : mapWallet.erase(it);
3227 3 : NotifyTransactionChanged(this, hash, CT_DELETED);
3228 3 : }
3229 :
3230 4 : if (nZapSelectTxRet == DBErrors::NEED_REWRITE)
3231 : {
3232 0 : if (database->Rewrite("\x04pool"))
3233 : {
3234 0 : for (const auto& spk_man_pair : m_spk_managers) {
3235 0 : spk_man_pair.second->RewriteDB();
3236 : }
3237 0 : }
3238 : }
3239 :
3240 4 : if (nZapSelectTxRet != DBErrors::LOAD_OK)
3241 0 : return nZapSelectTxRet;
3242 :
3243 4 : MarkDirty();
3244 :
3245 4 : return DBErrors::LOAD_OK;
3246 4 : }
3247 :
3248 10186 : bool CWallet::SetAddressBookWithDB(WalletBatch& batch, const CTxDestination& address, const std::string& strName, const std::string& strPurpose)
3249 : {
3250 : bool fUpdated = false;
3251 : bool is_mine;
3252 : {
3253 10186 : LOCK(cs_wallet);
3254 10186 : std::map<CTxDestination, CAddressBookData>::iterator mi = m_address_book.find(address);
3255 10186 : fUpdated = (mi != m_address_book.end() && !mi->second.IsChange());
3256 10186 : m_address_book[address].SetLabel(strName);
3257 10186 : if (!strPurpose.empty()) /* update purpose only if requested */
3258 10186 : m_address_book[address].purpose = strPurpose;
3259 10186 : is_mine = IsMine(address) != ISMINE_NO;
3260 10186 : }
3261 20372 : NotifyAddressBookChanged(this, address, strName, is_mine,
3262 10186 : strPurpose, (fUpdated ? CT_UPDATED : CT_NEW) );
3263 10186 : if (!strPurpose.empty() && !batch.WritePurpose(EncodeDestination(address), strPurpose))
3264 0 : return false;
3265 10186 : return batch.WriteName(EncodeDestination(address), strName);
3266 10186 : }
3267 :
3268 9812 : bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& strName, const std::string& strPurpose)
3269 : {
3270 9812 : WalletBatch batch(*database);
3271 9812 : return SetAddressBookWithDB(batch, address, strName, strPurpose);
3272 9812 : }
3273 :
3274 0 : bool CWallet::DelAddressBook(const CTxDestination& address)
3275 : {
3276 : bool is_mine;
3277 0 : WalletBatch batch(*database);
3278 : {
3279 0 : LOCK(cs_wallet);
3280 : // If we want to delete receiving addresses, we need to take care that DestData "used" (and possibly newer DestData) gets preserved (and the "deleted" address transformed into a change entry instead of actually being deleted)
3281 : // NOTE: This isn't a problem for sending addresses because they never have any DestData yet!
3282 : // When adding new DestData, it should be considered here whether to retain or delete it (or move it?).
3283 0 : if (IsMine(address)) {
3284 0 : WalletLogPrintf("%s called with IsMine address, NOT SUPPORTED. Please report this bug! %s\n", __func__, PACKAGE_BUGREPORT);
3285 0 : return false;
3286 : }
3287 : // Delete destdata tuples associated with address
3288 0 : std::string strAddress = EncodeDestination(address);
3289 0 : for (const std::pair<const std::string, std::string> &item : m_address_book[address].destdata)
3290 : {
3291 0 : batch.EraseDestData(strAddress, item.first);
3292 0 : }
3293 0 : m_address_book.erase(address);
3294 0 : is_mine = IsMine(address) != ISMINE_NO;
3295 0 : }
3296 :
3297 0 : NotifyAddressBookChanged(this, address, "", is_mine, "", CT_DELETED);
3298 :
3299 0 : batch.ErasePurpose(EncodeDestination(address));
3300 0 : return batch.EraseName(EncodeDestination(address));
3301 0 : }
3302 :
3303 1068 : size_t CWallet::KeypoolCountExternalKeys() const
3304 : {
3305 1068 : AssertLockHeld(cs_wallet);
3306 :
3307 : unsigned int count = 0;
3308 2454 : for (auto spk_man : GetActiveScriptPubKeyMans()) {
3309 1386 : count += spk_man->KeypoolCountExternalKeys();
3310 0 : }
3311 :
3312 1068 : return count;
3313 0 : }
3314 :
3315 1811 : unsigned int CWallet::GetKeyPoolSize() const
3316 : {
3317 1811 : AssertLockHeld(cs_wallet);
3318 :
3319 : unsigned int count = 0;
3320 4192 : for (auto spk_man : GetActiveScriptPubKeyMans()) {
3321 2381 : count += spk_man->GetKeyPoolSize();
3322 0 : }
3323 1811 : return count;
3324 0 : }
3325 :
3326 782 : bool CWallet::TopUpKeyPool(unsigned int kpSize)
3327 : {
3328 782 : LOCK(cs_wallet);
3329 : bool res = true;
3330 1876 : for (auto spk_man : GetActiveScriptPubKeyMans()) {
3331 1094 : res &= spk_man->TopUp(kpSize);
3332 0 : }
3333 782 : return res;
3334 782 : }
3335 :
3336 8642 : bool CWallet::GetNewDestination(const OutputType type, const std::string label, CTxDestination& dest, std::string& error)
3337 : {
3338 8642 : LOCK(cs_wallet);
3339 8642 : error.clear();
3340 : bool result = false;
3341 8642 : auto spk_man = GetScriptPubKeyMan(type, false /* internal */);
3342 8642 : if (spk_man) {
3343 8642 : spk_man->TopUp();
3344 8642 : result = spk_man->GetNewDestination(type, dest, error);
3345 8642 : } else {
3346 0 : error = strprintf("Error: No %s addresses available.", FormatOutputType(type));
3347 : }
3348 8642 : if (result) {
3349 8634 : SetAddressBook(dest, label, "receive");
3350 8634 : }
3351 :
3352 : return result;
3353 8642 : }
3354 :
3355 67 : bool CWallet::GetNewChangeDestination(const OutputType type, CTxDestination& dest, std::string& error)
3356 : {
3357 67 : LOCK(cs_wallet);
3358 67 : error.clear();
3359 :
3360 67 : ReserveDestination reservedest(this, type);
3361 67 : if (!reservedest.GetReservedDestination(dest, true)) {
3362 2 : error = _("Error: Keypool ran out, please call keypoolrefill first").translated;
3363 2 : return false;
3364 : }
3365 :
3366 65 : reservedest.KeepDestination();
3367 65 : return true;
3368 67 : }
3369 :
3370 1068 : int64_t CWallet::GetOldestKeyPoolTime() const
3371 : {
3372 1068 : LOCK(cs_wallet);
3373 1068 : int64_t oldestKey = std::numeric_limits<int64_t>::max();
3374 2694 : for (const auto& spk_man_pair : m_spk_managers) {
3375 1626 : oldestKey = std::min(oldestKey, spk_man_pair.second->GetOldestKeyPoolTime());
3376 0 : }
3377 1068 : return oldestKey;
3378 1068 : }
3379 :
3380 291 : void CWallet::MarkDestinationsDirty(const std::set<CTxDestination>& destinations) {
3381 25356 : for (auto& entry : mapWallet) {
3382 25065 : CWalletTx& wtx = entry.second;
3383 25065 : if (wtx.m_is_cache_empty) continue;
3384 58854 : for (unsigned int i = 0; i < wtx.tx->vout.size(); i++) {
3385 38739 : CTxDestination dst;
3386 38739 : if (ExtractDestination(wtx.tx->vout[i].scriptPubKey, dst) && destinations.count(dst)) {
3387 221 : wtx.MarkDirty();
3388 221 : break;
3389 : }
3390 38739 : }
3391 40672 : }
3392 291 : }
3393 :
3394 4 : std::map<CTxDestination, CAmount> CWallet::GetAddressBalances() const
3395 : {
3396 4 : std::map<CTxDestination, CAmount> balances;
3397 :
3398 : {
3399 4 : LOCK(cs_wallet);
3400 4 : std::set<uint256> trusted_parents;
3401 414 : for (const auto& walletEntry : mapWallet)
3402 : {
3403 410 : const CWalletTx& wtx = walletEntry.second;
3404 :
3405 410 : if (!IsTrusted(wtx, trusted_parents))
3406 0 : continue;
3407 :
3408 410 : if (wtx.IsImmatureCoinBase())
3409 400 : continue;
3410 :
3411 10 : int nDepth = wtx.GetDepthInMainChain();
3412 10 : if (nDepth < (wtx.IsFromMe(ISMINE_ALL) ? 0 : 1))
3413 0 : continue;
3414 :
3415 28 : for (unsigned int i = 0; i < wtx.tx->vout.size(); i++)
3416 : {
3417 18 : CTxDestination addr;
3418 18 : if (!IsMine(wtx.tx->vout[i]))
3419 10 : continue;
3420 8 : if(!ExtractDestination(wtx.tx->vout[i].scriptPubKey, addr))
3421 0 : continue;
3422 :
3423 8 : CAmount n = IsSpent(walletEntry.first, i) ? 0 : wtx.tx->vout[i].nValue;
3424 8 : balances[addr] += n;
3425 18 : }
3426 20 : }
3427 4 : }
3428 :
3429 : return balances;
3430 4 : }
3431 :
3432 4 : std::set< std::set<CTxDestination> > CWallet::GetAddressGroupings() const
3433 : {
3434 4 : AssertLockHeld(cs_wallet);
3435 4 : std::set< std::set<CTxDestination> > groupings;
3436 4 : std::set<CTxDestination> grouping;
3437 :
3438 414 : for (const auto& walletEntry : mapWallet)
3439 : {
3440 410 : const CWalletTx& wtx = walletEntry.second;
3441 :
3442 410 : if (wtx.tx->vin.size() > 0)
3443 : {
3444 : bool any_mine = false;
3445 : // group all input addresses with each other
3446 822 : for (const CTxIn& txin : wtx.tx->vin)
3447 : {
3448 412 : CTxDestination address;
3449 412 : if(!IsMine(txin)) /* If this input isn't mine, ignore it */
3450 408 : continue;
3451 4 : if(!ExtractDestination(mapWallet.at(txin.prevout.hash).tx->vout[txin.prevout.n].scriptPubKey, address))
3452 0 : continue;
3453 4 : grouping.insert(address);
3454 : any_mine = true;
3455 412 : }
3456 :
3457 : // group change with input addresses
3458 410 : if (any_mine)
3459 : {
3460 4 : for (const CTxOut& txout : wtx.tx->vout)
3461 2 : if (IsChange(txout))
3462 : {
3463 0 : CTxDestination txoutAddr;
3464 0 : if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
3465 0 : continue;
3466 0 : grouping.insert(txoutAddr);
3467 2 : }
3468 2 : }
3469 410 : if (grouping.size() > 0)
3470 : {
3471 2 : groupings.insert(grouping);
3472 2 : grouping.clear();
3473 2 : }
3474 410 : }
3475 :
3476 : // group lone addrs by themselves
3477 1228 : for (const auto& txout : wtx.tx->vout)
3478 818 : if (IsMine(txout))
3479 : {
3480 408 : CTxDestination address;
3481 408 : if(!ExtractDestination(txout.scriptPubKey, address))
3482 0 : continue;
3483 408 : grouping.insert(address);
3484 408 : groupings.insert(grouping);
3485 408 : grouping.clear();
3486 818 : }
3487 0 : }
3488 :
3489 4 : std::set< std::set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
3490 4 : std::map< CTxDestination, std::set<CTxDestination>* > setmap; // map addresses to the unique group containing it
3491 14 : for (std::set<CTxDestination> _grouping : groupings)
3492 : {
3493 : // make a set of all the groups hit by this new group
3494 10 : std::set< std::set<CTxDestination>* > hits;
3495 10 : std::map< CTxDestination, std::set<CTxDestination>* >::iterator it;
3496 22 : for (const CTxDestination& address : _grouping)
3497 12 : if ((it = setmap.find(address)) != setmap.end())
3498 4 : hits.insert((*it).second);
3499 :
3500 : // merge all hit groups into a new single group and delete old groups
3501 10 : std::set<CTxDestination>* merged = new std::set<CTxDestination>(_grouping);
3502 14 : for (std::set<CTxDestination>* hit : hits)
3503 : {
3504 4 : merged->insert(hit->begin(), hit->end());
3505 4 : uniqueGroupings.erase(hit);
3506 4 : delete hit;
3507 4 : }
3508 10 : uniqueGroupings.insert(merged);
3509 :
3510 : // update setmap
3511 24 : for (const CTxDestination& element : *merged)
3512 14 : setmap[element] = merged;
3513 10 : }
3514 :
3515 4 : std::set< std::set<CTxDestination> > ret;
3516 10 : for (const std::set<CTxDestination>* uniqueGrouping : uniqueGroupings)
3517 : {
3518 6 : ret.insert(*uniqueGrouping);
3519 6 : delete uniqueGrouping;
3520 0 : }
3521 :
3522 : return ret;
3523 4 : }
3524 :
3525 30 : std::set<CTxDestination> CWallet::GetLabelAddresses(const std::string& label) const
3526 : {
3527 30 : LOCK(cs_wallet);
3528 30 : std::set<CTxDestination> result;
3529 285 : for (const std::pair<const CTxDestination, CAddressBookData>& item : m_address_book)
3530 : {
3531 255 : if (item.second.IsChange()) continue;
3532 255 : const CTxDestination& address = item.first;
3533 255 : const std::string& strName = item.second.GetLabel();
3534 255 : if (strName == label)
3535 52 : result.insert(address);
3536 255 : }
3537 : return result;
3538 30 : }
3539 :
3540 2498 : bool ReserveDestination::GetReservedDestination(CTxDestination& dest, bool internal)
3541 : {
3542 2498 : m_spk_man = pwallet->GetScriptPubKeyMan(type, internal);
3543 2498 : if (!m_spk_man) {
3544 11 : return false;
3545 : }
3546 :
3547 :
3548 2487 : if (nIndex == -1)
3549 : {
3550 2487 : m_spk_man->TopUp();
3551 :
3552 2487 : CKeyPool keypool;
3553 2487 : if (!m_spk_man->GetReservedDestination(type, internal, address, nIndex, keypool)) {
3554 17 : return false;
3555 : }
3556 2470 : fInternal = keypool.fInternal;
3557 2487 : }
3558 2470 : dest = address;
3559 2470 : return true;
3560 2498 : }
3561 :
3562 2659 : void ReserveDestination::KeepDestination()
3563 : {
3564 2659 : if (nIndex != -1) {
3565 2433 : m_spk_man->KeepDestination(nIndex, type);
3566 2433 : }
3567 2659 : nIndex = -1;
3568 2659 : address = CNoDestination();
3569 2659 : }
3570 :
3571 2707 : void ReserveDestination::ReturnDestination()
3572 : {
3573 2707 : if (nIndex != -1) {
3574 38 : m_spk_man->ReturnDestination(nIndex, fInternal, address);
3575 38 : }
3576 2707 : nIndex = -1;
3577 2707 : address = CNoDestination();
3578 2707 : }
3579 :
3580 14 : void CWallet::LockCoin(const COutPoint& output)
3581 : {
3582 14 : AssertLockHeld(cs_wallet);
3583 14 : setLockedCoins.insert(output);
3584 14 : }
3585 :
3586 4 : void CWallet::UnlockCoin(const COutPoint& output)
3587 : {
3588 4 : AssertLockHeld(cs_wallet);
3589 4 : setLockedCoins.erase(output);
3590 4 : }
3591 :
3592 0 : void CWallet::UnlockAllCoins()
3593 : {
3594 0 : AssertLockHeld(cs_wallet);
3595 0 : setLockedCoins.clear();
3596 0 : }
3597 :
3598 767327 : bool CWallet::IsLockedCoin(uint256 hash, unsigned int n) const
3599 : {
3600 767327 : AssertLockHeld(cs_wallet);
3601 767327 : COutPoint outpt(hash, n);
3602 :
3603 1534654 : return (setLockedCoins.count(outpt) > 0);
3604 767327 : }
3605 :
3606 18 : void CWallet::ListLockedCoins(std::vector<COutPoint>& vOutpts) const
3607 : {
3608 18 : AssertLockHeld(cs_wallet);
3609 27 : for (std::set<COutPoint>::iterator it = setLockedCoins.begin();
3610 27 : it != setLockedCoins.end(); it++) {
3611 9 : COutPoint outpt = (*it);
3612 9 : vOutpts.push_back(outpt);
3613 9 : }
3614 18 : }
3615 :
3616 : /** @} */ // end of Actions
3617 :
3618 6 : void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64_t>& mapKeyBirth) const {
3619 6 : AssertLockHeld(cs_wallet);
3620 6 : mapKeyBirth.clear();
3621 :
3622 6 : LegacyScriptPubKeyMan* spk_man = GetLegacyScriptPubKeyMan();
3623 6 : assert(spk_man != nullptr);
3624 6 : LOCK(spk_man->cs_KeyStore);
3625 :
3626 : // get birth times for keys with metadata
3627 1256 : for (const auto& entry : spk_man->mapKeyMetadata) {
3628 1250 : if (entry.second.nCreateTime) {
3629 1250 : mapKeyBirth[entry.first] = entry.second.nCreateTime;
3630 1250 : }
3631 0 : }
3632 :
3633 : // map in which we'll infer heights of other keys
3634 6 : std::map<CKeyID, const CWalletTx::Confirmation*> mapKeyFirstBlock;
3635 6 : CWalletTx::Confirmation max_confirm;
3636 6 : max_confirm.block_height = GetLastBlockHeight() > 144 ? GetLastBlockHeight() - 144 : 0; // the tip can be reorganized; use a 144-block safety margin
3637 6 : CHECK_NONFATAL(chain().findAncestorByHeight(GetLastBlockHash(), max_confirm.block_height, FoundBlock().hash(max_confirm.hashBlock)));
3638 1256 : for (const CKeyID &keyid : spk_man->GetKeys()) {
3639 1250 : if (mapKeyBirth.count(keyid) == 0)
3640 0 : mapKeyFirstBlock[keyid] = &max_confirm;
3641 0 : }
3642 :
3643 : // if there are no such keys, we're done
3644 6 : if (mapKeyFirstBlock.empty())
3645 6 : return;
3646 :
3647 : // find first block that affects those keys, if there are any left
3648 0 : for (const auto& entry : mapWallet) {
3649 : // iterate over all wallet transactions...
3650 0 : const CWalletTx &wtx = entry.second;
3651 0 : if (wtx.m_confirm.status == CWalletTx::CONFIRMED) {
3652 : // ... which are already in a block
3653 0 : for (const CTxOut &txout : wtx.tx->vout) {
3654 : // iterate over all their outputs
3655 0 : for (const auto &keyid : GetAffectedKeys(txout.scriptPubKey, *spk_man)) {
3656 : // ... and all their affected keys
3657 0 : auto rit = mapKeyFirstBlock.find(keyid);
3658 0 : if (rit != mapKeyFirstBlock.end() && wtx.m_confirm.block_height < rit->second->block_height) {
3659 0 : rit->second = &wtx.m_confirm;
3660 0 : }
3661 0 : }
3662 : }
3663 0 : }
3664 0 : }
3665 :
3666 : // Extract block timestamps for those keys
3667 0 : for (const auto& entry : mapKeyFirstBlock) {
3668 0 : int64_t block_time;
3669 0 : CHECK_NONFATAL(chain().findBlock(entry.second->hashBlock, FoundBlock().time(block_time)));
3670 0 : mapKeyBirth[entry.first] = block_time - TIMESTAMP_WINDOW; // block times can be 2h off
3671 0 : }
3672 6 : }
3673 :
3674 : /**
3675 : * Compute smart timestamp for a transaction being added to the wallet.
3676 : *
3677 : * Logic:
3678 : * - If sending a transaction, assign its timestamp to the current time.
3679 : * - If receiving a transaction outside a block, assign its timestamp to the
3680 : * current time.
3681 : * - If receiving a block with a future timestamp, assign all its (not already
3682 : * known) transactions' timestamps to the current time.
3683 : * - If receiving a block with a past timestamp, before the most recent known
3684 : * transaction (that we care about), assign all its (not already known)
3685 : * transactions' timestamps to the same timestamp as that most-recent-known
3686 : * transaction.
3687 : * - If receiving a block with a past timestamp, but after the most recent known
3688 : * transaction, assign all its (not already known) transactions' timestamps to
3689 : * the block time.
3690 : *
3691 : * For more information see CWalletTx::nTimeSmart,
3692 : * https://bitcointalk.org/?topic=54527, or
3693 : * https://github.com/bitcoin/bitcoin/pull/1393.
3694 : */
3695 136216 : unsigned int CWallet::ComputeTimeSmart(const CWalletTx& wtx) const
3696 : {
3697 136216 : unsigned int nTimeSmart = wtx.nTimeReceived;
3698 136216 : if (!wtx.isUnconfirmed() && !wtx.isAbandoned()) {
3699 23826 : int64_t blocktime;
3700 23826 : if (chain().findBlock(wtx.m_confirm.hashBlock, FoundBlock().time(blocktime))) {
3701 23826 : int64_t latestNow = wtx.nTimeReceived;
3702 23826 : int64_t latestEntry = 0;
3703 :
3704 : // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
3705 23826 : int64_t latestTolerated = latestNow + 300;
3706 23826 : const TxItems& txOrdered = wtxOrdered;
3707 71297 : for (auto it = txOrdered.rbegin(); it != txOrdered.rend(); ++it) {
3708 47471 : CWalletTx* const pwtx = it->second;
3709 47471 : if (pwtx == &wtx) {
3710 23826 : continue;
3711 : }
3712 : int64_t nSmartTime;
3713 23645 : nSmartTime = pwtx->nTimeSmart;
3714 23645 : if (!nSmartTime) {
3715 0 : nSmartTime = pwtx->nTimeReceived;
3716 0 : }
3717 23645 : if (nSmartTime <= latestTolerated) {
3718 23548 : latestEntry = nSmartTime;
3719 23548 : if (nSmartTime > latestNow) {
3720 1 : latestNow = nSmartTime;
3721 1 : }
3722 23548 : break;
3723 : }
3724 97 : }
3725 :
3726 23826 : nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
3727 23826 : } else {
3728 0 : WalletLogPrintf("%s: found %s in block %s not in index\n", __func__, wtx.GetHash().ToString(), wtx.m_confirm.hashBlock.ToString());
3729 : }
3730 23826 : }
3731 136216 : return nTimeSmart;
3732 0 : }
3733 :
3734 46 : bool CWallet::AddDestData(WalletBatch& batch, const CTxDestination &dest, const std::string &key, const std::string &value)
3735 : {
3736 46 : if (boost::get<CNoDestination>(&dest))
3737 0 : return false;
3738 :
3739 46 : m_address_book[dest].destdata.insert(std::make_pair(key, value));
3740 46 : return batch.WriteDestData(EncodeDestination(dest), key, value);
3741 46 : }
3742 :
3743 0 : bool CWallet::EraseDestData(WalletBatch& batch, const CTxDestination &dest, const std::string &key)
3744 : {
3745 0 : if (!m_address_book[dest].destdata.erase(key))
3746 0 : return false;
3747 0 : return batch.EraseDestData(EncodeDestination(dest), key);
3748 0 : }
3749 :
3750 0 : void CWallet::LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value)
3751 : {
3752 0 : m_address_book[dest].destdata.insert(std::make_pair(key, value));
3753 0 : }
3754 :
3755 1907 : bool CWallet::GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const
3756 : {
3757 1907 : std::map<CTxDestination, CAddressBookData>::const_iterator i = m_address_book.find(dest);
3758 1907 : if(i != m_address_book.end())
3759 : {
3760 1225 : CAddressBookData::StringMap::const_iterator j = i->second.destdata.find(key);
3761 1225 : if(j != i->second.destdata.end())
3762 : {
3763 621 : if(value)
3764 0 : *value = j->second;
3765 621 : return true;
3766 : }
3767 1225 : }
3768 1286 : return false;
3769 1907 : }
3770 :
3771 1 : std::vector<std::string> CWallet::GetDestValues(const std::string& prefix) const
3772 : {
3773 1 : std::vector<std::string> values;
3774 2 : for (const auto& address : m_address_book) {
3775 4 : for (const auto& data : address.second.destdata) {
3776 3 : if (!data.first.compare(0, prefix.size(), prefix)) {
3777 2 : values.emplace_back(data.second);
3778 : }
3779 0 : }
3780 0 : }
3781 : return values;
3782 1 : }
3783 :
3784 1022 : std::unique_ptr<WalletDatabase> MakeWalletDatabase(const std::string& name, const DatabaseOptions& options, DatabaseStatus& status, bilingual_str& error_string)
3785 : {
3786 : // Do some checking on wallet path. It should be either a:
3787 : //
3788 : // 1. Path where a directory can be created.
3789 : // 2. Path to an existing directory.
3790 : // 3. Path to a symlink to a directory.
3791 : // 4. For backwards compatibility, the name of a data file in -walletdir.
3792 1022 : const fs::path& wallet_path = fs::absolute(name, GetWalletDir());
3793 1022 : fs::file_type path_type = fs::symlink_status(wallet_path).type();
3794 1073 : if (!(path_type == fs::file_not_found || path_type == fs::directory_file ||
3795 51 : (path_type == fs::symlink_file && fs::is_directory(wallet_path)) ||
3796 35 : (path_type == fs::regular_file && fs::path(name).filename() == name))) {
3797 4 : error_string = Untranslated(strprintf(
3798 : "Invalid -wallet path '%s'. -wallet path should point to a directory where wallet.dat and "
3799 : "database/log.?????????? files can be stored, a location where such a directory could be created, "
3800 : "or (for backwards compatibility) the name of an existing data file in -walletdir (%s)",
3801 4 : name, GetWalletDir()));
3802 4 : status = DatabaseStatus::FAILED_BAD_PATH;
3803 4 : return nullptr;
3804 : }
3805 1018 : return MakeDatabase(wallet_path, options, status, error_string);
3806 1022 : }
3807 :
3808 733 : std::shared_ptr<CWallet> CWallet::Create(interfaces::Chain& chain, const std::string& name, std::unique_ptr<WalletDatabase> database, uint64_t wallet_creation_flags, bilingual_str& error, std::vector<bilingual_str>& warnings)
3809 : {
3810 733 : const std::string& walletFile = database->Filename();
3811 :
3812 733 : chain.initMessage(_("Loading wallet...").translated);
3813 :
3814 733 : int64_t nStart = GetTimeMillis();
3815 733 : bool fFirstRun = true;
3816 : // TODO: Can't use std::make_shared because we need a custom deleter but
3817 : // should be possible to use std::allocate_shared.
3818 733 : std::shared_ptr<CWallet> walletInstance(new CWallet(&chain, name, std::move(database)), ReleaseWallet);
3819 733 : DBErrors nLoadWalletRet = walletInstance->LoadWallet(fFirstRun);
3820 727 : if (nLoadWalletRet != DBErrors::LOAD_OK) {
3821 0 : if (nLoadWalletRet == DBErrors::CORRUPT) {
3822 0 : error = strprintf(_("Error loading %s: Wallet corrupted"), walletFile);
3823 0 : return nullptr;
3824 : }
3825 0 : else if (nLoadWalletRet == DBErrors::NONCRITICAL_ERROR)
3826 : {
3827 0 : warnings.push_back(strprintf(_("Error reading %s! All keys read correctly, but transaction data"
3828 : " or address book entries might be missing or incorrect."),
3829 : walletFile));
3830 : }
3831 0 : else if (nLoadWalletRet == DBErrors::TOO_NEW) {
3832 0 : error = strprintf(_("Error loading %s: Wallet requires newer version of %s"), walletFile, PACKAGE_NAME);
3833 0 : return nullptr;
3834 : }
3835 0 : else if (nLoadWalletRet == DBErrors::NEED_REWRITE)
3836 : {
3837 0 : error = strprintf(_("Wallet needed to be rewritten: restart %s to complete"), PACKAGE_NAME);
3838 0 : return nullptr;
3839 : }
3840 : else {
3841 0 : error = strprintf(_("Error loading %s"), walletFile);
3842 0 : return nullptr;
3843 : }
3844 0 : }
3845 :
3846 727 : if (fFirstRun)
3847 : {
3848 : // ensure this wallet.dat can only be opened by clients supporting HD with chain split and expects no default key
3849 420 : walletInstance->SetMinVersion(FEATURE_LATEST);
3850 :
3851 420 : walletInstance->AddWalletFlags(wallet_creation_flags);
3852 :
3853 : // Only create LegacyScriptPubKeyMan when not descriptor wallet
3854 420 : if (!walletInstance->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
3855 377 : walletInstance->SetupLegacyScriptPubKeyMan();
3856 : }
3857 :
3858 420 : if (!(wallet_creation_flags & (WALLET_FLAG_DISABLE_PRIVATE_KEYS | WALLET_FLAG_BLANK_WALLET))) {
3859 373 : LOCK(walletInstance->cs_wallet);
3860 373 : if (walletInstance->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
3861 30 : walletInstance->SetupDescriptorScriptPubKeyMans();
3862 : // SetupDescriptorScriptPubKeyMans already calls SetupGeneration for us so we don't need to call SetupGeneration separately
3863 : } else {
3864 : // Legacy wallets need SetupGeneration here.
3865 686 : for (auto spk_man : walletInstance->GetActiveScriptPubKeyMans()) {
3866 343 : if (!spk_man->SetupGeneration()) {
3867 0 : error = _("Unable to generate initial keys");
3868 0 : return nullptr;
3869 : }
3870 343 : }
3871 : }
3872 373 : }
3873 :
3874 420 : walletInstance->chainStateFlushed(chain.getTipLocator());
3875 727 : } else if (wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS) {
3876 : // Make it impossible to disable private keys after creation
3877 0 : error = strprintf(_("Error loading %s: Private keys can only be disabled during creation"), walletFile);
3878 0 : return NULL;
3879 307 : } else if (walletInstance->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
3880 37 : for (auto spk_man : walletInstance->GetActiveScriptPubKeyMans()) {
3881 13 : if (spk_man->HavePrivateKeys()) {
3882 0 : warnings.push_back(strprintf(_("Warning: Private keys detected in wallet {%s} with disabled private keys"), walletFile));
3883 0 : break;
3884 : }
3885 13 : }
3886 24 : }
3887 :
3888 727 : if (!gArgs.GetArg("-addresstype", "").empty()) {
3889 47 : if (!ParseOutputType(gArgs.GetArg("-addresstype", ""), walletInstance->m_default_address_type)) {
3890 0 : error = strprintf(_("Unknown address type '%s'"), gArgs.GetArg("-addresstype", ""));
3891 0 : return nullptr;
3892 : }
3893 : }
3894 :
3895 727 : if (!gArgs.GetArg("-changetype", "").empty()) {
3896 2 : OutputType out_type;
3897 2 : if (!ParseOutputType(gArgs.GetArg("-changetype", ""), out_type)) {
3898 0 : error = strprintf(_("Unknown change type '%s'"), gArgs.GetArg("-changetype", ""));
3899 0 : return nullptr;
3900 : }
3901 2 : walletInstance->m_default_change_type = out_type;
3902 2 : }
3903 :
3904 727 : if (gArgs.IsArgSet("-mintxfee")) {
3905 12 : CAmount n = 0;
3906 12 : if (!ParseMoney(gArgs.GetArg("-mintxfee", ""), n) || 0 == n) {
3907 0 : error = AmountErrMsg("mintxfee", gArgs.GetArg("-mintxfee", ""));
3908 0 : return nullptr;
3909 : }
3910 12 : if (n > HIGH_TX_FEE_PER_KB) {
3911 0 : warnings.push_back(AmountHighWarn("-mintxfee") + Untranslated(" ") +
3912 0 : _("This is the minimum transaction fee you pay on every transaction."));
3913 0 : }
3914 12 : walletInstance->m_min_fee = CFeeRate(n);
3915 12 : }
3916 :
3917 727 : if (gArgs.IsArgSet("-maxapsfee")) {
3918 2 : const std::string max_aps_fee{gArgs.GetArg("-maxapsfee", "")};
3919 2 : CAmount n = 0;
3920 2 : if (max_aps_fee == "-1") {
3921 0 : n = -1;
3922 2 : } else if (!ParseMoney(max_aps_fee, n)) {
3923 0 : error = AmountErrMsg("maxapsfee", max_aps_fee);
3924 0 : return nullptr;
3925 : }
3926 2 : if (n > HIGH_APS_FEE) {
3927 0 : warnings.push_back(AmountHighWarn("-maxapsfee") + Untranslated(" ") +
3928 0 : _("This is the maximum transaction fee you pay (in addition to the normal fee) to prioritize partial spend avoidance over regular coin selection."));
3929 0 : }
3930 2 : walletInstance->m_max_aps_fee = n;
3931 2 : }
3932 :
3933 727 : if (gArgs.IsArgSet("-fallbackfee")) {
3934 723 : CAmount nFeePerK = 0;
3935 723 : if (!ParseMoney(gArgs.GetArg("-fallbackfee", ""), nFeePerK)) {
3936 0 : error = strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), gArgs.GetArg("-fallbackfee", ""));
3937 0 : return nullptr;
3938 : }
3939 723 : if (nFeePerK > HIGH_TX_FEE_PER_KB) {
3940 0 : warnings.push_back(AmountHighWarn("-fallbackfee") + Untranslated(" ") +
3941 0 : _("This is the transaction fee you may pay when fee estimates are not available."));
3942 0 : }
3943 723 : walletInstance->m_fallback_fee = CFeeRate(nFeePerK);
3944 723 : }
3945 : // Disable fallback fee in case value was set to 0, enable if non-null value
3946 727 : walletInstance->m_allow_fallback_fee = walletInstance->m_fallback_fee.GetFeePerK() != 0;
3947 :
3948 727 : if (gArgs.IsArgSet("-discardfee")) {
3949 0 : CAmount nFeePerK = 0;
3950 0 : if (!ParseMoney(gArgs.GetArg("-discardfee", ""), nFeePerK)) {
3951 0 : error = strprintf(_("Invalid amount for -discardfee=<amount>: '%s'"), gArgs.GetArg("-discardfee", ""));
3952 0 : return nullptr;
3953 : }
3954 0 : if (nFeePerK > HIGH_TX_FEE_PER_KB) {
3955 0 : warnings.push_back(AmountHighWarn("-discardfee") + Untranslated(" ") +
3956 0 : _("This is the transaction fee you may discard if change is smaller than dust at this level"));
3957 0 : }
3958 0 : walletInstance->m_discard_rate = CFeeRate(nFeePerK);
3959 0 : }
3960 727 : if (gArgs.IsArgSet("-paytxfee")) {
3961 1 : CAmount nFeePerK = 0;
3962 1 : if (!ParseMoney(gArgs.GetArg("-paytxfee", ""), nFeePerK)) {
3963 0 : error = AmountErrMsg("paytxfee", gArgs.GetArg("-paytxfee", ""));
3964 0 : return nullptr;
3965 : }
3966 1 : if (nFeePerK > HIGH_TX_FEE_PER_KB) {
3967 0 : warnings.push_back(AmountHighWarn("-paytxfee") + Untranslated(" ") +
3968 0 : _("This is the transaction fee you will pay if you send a transaction."));
3969 0 : }
3970 1 : walletInstance->m_pay_tx_fee = CFeeRate(nFeePerK, 1000);
3971 1 : if (walletInstance->m_pay_tx_fee < chain.relayMinFee()) {
3972 0 : error = strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
3973 0 : gArgs.GetArg("-paytxfee", ""), chain.relayMinFee().ToString());
3974 0 : return nullptr;
3975 : }
3976 1 : }
3977 :
3978 727 : if (gArgs.IsArgSet("-maxtxfee")) {
3979 2 : CAmount nMaxFee = 0;
3980 2 : if (!ParseMoney(gArgs.GetArg("-maxtxfee", ""), nMaxFee)) {
3981 0 : error = AmountErrMsg("maxtxfee", gArgs.GetArg("-maxtxfee", ""));
3982 0 : return nullptr;
3983 : }
3984 2 : if (nMaxFee > HIGH_MAX_TX_FEE) {
3985 0 : warnings.push_back(_("-maxtxfee is set very high! Fees this large could be paid on a single transaction."));
3986 0 : }
3987 2 : if (CFeeRate(nMaxFee, 1000) < chain.relayMinFee()) {
3988 0 : error = strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
3989 0 : gArgs.GetArg("-maxtxfee", ""), chain.relayMinFee().ToString());
3990 0 : return nullptr;
3991 : }
3992 2 : walletInstance->m_default_max_tx_fee = nMaxFee;
3993 2 : }
3994 :
3995 727 : if (chain.relayMinFee().GetFeePerK() > HIGH_TX_FEE_PER_KB) {
3996 0 : warnings.push_back(AmountHighWarn("-minrelaytxfee") + Untranslated(" ") +
3997 0 : _("The wallet will avoid paying less than the minimum relay fee."));
3998 0 : }
3999 :
4000 727 : walletInstance->m_confirm_target = gArgs.GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
4001 727 : walletInstance->m_spend_zero_conf_change = gArgs.GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
4002 727 : walletInstance->m_signal_rbf = gArgs.GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF);
4003 :
4004 727 : walletInstance->WalletLogPrintf("Wallet completed loading in %15dms\n", GetTimeMillis() - nStart);
4005 :
4006 : // Try to top up keypool. No-op if the wallet is locked.
4007 727 : walletInstance->TopUpKeyPool();
4008 :
4009 727 : LOCK(walletInstance->cs_wallet);
4010 :
4011 : // Register wallet with validationinterface. It's done before rescan to avoid
4012 : // missing block connections between end of rescan and validation subscribing.
4013 : // Because of wallet lock being hold, block connection notifications are going to
4014 : // be pending on the validation-side until lock release. It's likely to have
4015 : // block processing duplicata (if rescan block range overlaps with notification one)
4016 : // but we guarantee at least than wallet state is correct after notifications delivery.
4017 : // This is temporary until rescan and notifications delivery are unified under same
4018 : // interface.
4019 727 : walletInstance->m_chain_notifications_handler = walletInstance->chain().handleNotifications(walletInstance);
4020 :
4021 : int rescan_height = 0;
4022 727 : if (!gArgs.GetBoolArg("-rescan", false))
4023 : {
4024 717 : WalletBatch batch(*walletInstance->database);
4025 717 : CBlockLocator locator;
4026 717 : if (batch.ReadBestBlock(locator)) {
4027 1399 : if (const Optional<int> fork_height = chain.findLocatorFork(locator)) {
4028 683 : rescan_height = *fork_height;
4029 683 : }
4030 716 : }
4031 717 : }
4032 :
4033 727 : const Optional<int> tip_height = chain.getHeight();
4034 727 : if (tip_height) {
4035 694 : walletInstance->m_last_block_processed = chain.getBlockHash(*tip_height);
4036 694 : walletInstance->m_last_block_processed_height = *tip_height;
4037 694 : } else {
4038 33 : walletInstance->m_last_block_processed.SetNull();
4039 33 : walletInstance->m_last_block_processed_height = -1;
4040 : }
4041 :
4042 727 : if (tip_height && *tip_height != rescan_height)
4043 : {
4044 : // We can't rescan beyond non-pruned blocks, stop and throw an error.
4045 : // This might happen if a user uses an old wallet within a pruned node
4046 : // or if they ran -disablewallet for a longer time, then decided to re-enable
4047 80 : if (chain.havePruned()) {
4048 : // Exit early and print an error.
4049 : // If a block is pruned after this check, we will load the wallet,
4050 : // but fail the rescan with a generic error.
4051 0 : int block_height = *tip_height;
4052 0 : while (block_height > 0 && chain.haveBlockOnDisk(block_height - 1) && rescan_height != block_height) {
4053 0 : --block_height;
4054 : }
4055 :
4056 0 : if (rescan_height != block_height) {
4057 0 : error = _("Prune: last wallet synchronisation goes beyond pruned data. You need to -reindex (download the whole blockchain again in case of pruned node)");
4058 0 : return nullptr;
4059 : }
4060 0 : }
4061 :
4062 80 : chain.initMessage(_("Rescanning...").translated);
4063 80 : walletInstance->WalletLogPrintf("Rescanning last %i blocks (from block %i)...\n", *tip_height - rescan_height, rescan_height);
4064 :
4065 : // No need to read and scan block if block was created before
4066 : // our wallet birthday (as adjusted for block time variability)
4067 : // The way the 'time_first_key' is initialized is just a workaround for the gcc bug #47679 since version 4.6.0.
4068 80 : Optional<int64_t> time_first_key = MakeOptional(false, int64_t());;
4069 248 : for (auto spk_man : walletInstance->GetAllScriptPubKeyMans()) {
4070 168 : int64_t time = spk_man->GetTimeFirstKey();
4071 168 : if (!time_first_key || time < *time_first_key) time_first_key = time;
4072 168 : }
4073 80 : if (time_first_key) {
4074 160 : if (Optional<int> first_block = chain.findFirstBlockWithTimeAndHeight(*time_first_key - TIMESTAMP_WINDOW, rescan_height, nullptr)) {
4075 80 : rescan_height = *first_block;
4076 80 : }
4077 80 : }
4078 :
4079 : {
4080 80 : WalletRescanReserver reserver(*walletInstance);
4081 80 : if (!reserver.reserve() || (ScanResult::SUCCESS != walletInstance->ScanForWalletTransactions(chain.getBlockHash(rescan_height), rescan_height, {} /* max height */, reserver, true /* update */).status)) {
4082 0 : error = _("Failed to rescan the wallet during initialization");
4083 0 : return nullptr;
4084 : }
4085 80 : }
4086 80 : walletInstance->chainStateFlushed(chain.getTipLocator());
4087 80 : walletInstance->database->IncrementUpdateCounter();
4088 80 : }
4089 :
4090 : {
4091 727 : LOCK(cs_wallets);
4092 728 : for (auto& load_wallet : g_load_wallet_fns) {
4093 1 : load_wallet(interfaces::MakeWallet(walletInstance));
4094 0 : }
4095 727 : }
4096 :
4097 727 : walletInstance->SetBroadcastTransactions(gArgs.GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST));
4098 :
4099 : {
4100 727 : walletInstance->WalletLogPrintf("setKeyPool.size() = %u\n", walletInstance->GetKeyPoolSize());
4101 727 : walletInstance->WalletLogPrintf("mapWallet.size() = %u\n", walletInstance->mapWallet.size());
4102 727 : walletInstance->WalletLogPrintf("m_address_book.size() = %u\n", walletInstance->m_address_book.size());
4103 : }
4104 :
4105 727 : return walletInstance;
4106 733 : }
4107 :
4108 54842 : const CAddressBookData* CWallet::FindAddressBookEntry(const CTxDestination& dest, bool allow_change) const
4109 : {
4110 54842 : const auto& address_book_it = m_address_book.find(dest);
4111 54842 : if (address_book_it == m_address_book.end()) return nullptr;
4112 49263 : if ((!allow_change) && address_book_it->second.IsChange()) {
4113 16 : return nullptr;
4114 : }
4115 49247 : return &address_book_it->second;
4116 54842 : }
4117 :
4118 2 : bool CWallet::UpgradeWallet(int version, bilingual_str& error, std::vector<bilingual_str>& warnings)
4119 : {
4120 2 : int prev_version = GetVersion();
4121 : int nMaxVersion = version;
4122 2 : if (nMaxVersion == 0) // the -upgradewallet without argument case
4123 : {
4124 1 : WalletLogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
4125 : nMaxVersion = FEATURE_LATEST;
4126 1 : SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately
4127 1 : } else {
4128 1 : WalletLogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion);
4129 : }
4130 2 : if (nMaxVersion < GetVersion())
4131 : {
4132 0 : error = _("Cannot downgrade wallet");
4133 0 : return false;
4134 : }
4135 2 : SetMaxVersion(nMaxVersion);
4136 :
4137 2 : LOCK(cs_wallet);
4138 :
4139 : // Do not upgrade versions to any version between HD_SPLIT and FEATURE_PRE_SPLIT_KEYPOOL unless already supporting HD_SPLIT
4140 2 : int max_version = GetVersion();
4141 2 : if (!CanSupportFeature(FEATURE_HD_SPLIT) && max_version >= FEATURE_HD_SPLIT && max_version < FEATURE_PRE_SPLIT_KEYPOOL) {
4142 0 : error = _("Cannot upgrade a non HD split wallet without upgrading to support pre split keypool. Please use version 169900 or no version specified.");
4143 0 : return false;
4144 : }
4145 :
4146 4 : for (auto spk_man : GetActiveScriptPubKeyMans()) {
4147 2 : if (!spk_man->Upgrade(prev_version, error)) {
4148 0 : return false;
4149 : }
4150 2 : }
4151 2 : return true;
4152 2 : }
4153 :
4154 722 : void CWallet::postInitProcess()
4155 : {
4156 722 : LOCK(cs_wallet);
4157 :
4158 : // Add wallet transactions that aren't already in a block to mempool
4159 : // Do this here as mempool requires genesis block to be loaded
4160 722 : ReacceptWalletTransactions();
4161 :
4162 : // Update wallet transactions with current mempool transactions.
4163 722 : chain().requestMempoolTransactions(*this);
4164 722 : }
4165 :
4166 28 : bool CWallet::BackupWallet(const std::string& strDest) const
4167 : {
4168 28 : return database->Backup(strDest);
4169 : }
4170 :
4171 39120 : CKeyPool::CKeyPool()
4172 19560 : {
4173 19560 : nTime = GetTime();
4174 19560 : fInternal = false;
4175 19560 : m_pre_split = false;
4176 39120 : }
4177 :
4178 49898 : CKeyPool::CKeyPool(const CPubKey& vchPubKeyIn, bool internalIn)
4179 24949 : {
4180 24949 : nTime = GetTime();
4181 24949 : vchPubKey = vchPubKeyIn;
4182 24949 : fInternal = internalIn;
4183 24949 : m_pre_split = false;
4184 49898 : }
4185 :
4186 2110762 : int CWalletTx::GetDepthInMainChain() const
4187 : {
4188 2110762 : assert(pwallet != nullptr);
4189 2110762 : AssertLockHeld(pwallet->cs_wallet);
4190 2110762 : if (isUnconfirmed() || isAbandoned()) return 0;
4191 :
4192 2065846 : return (pwallet->GetLastBlockHeight() - m_confirm.block_height + 1) * (isConflicted() ? -1 : 1);
4193 2110762 : }
4194 :
4195 928510 : int CWalletTx::GetBlocksToMaturity() const
4196 : {
4197 928510 : if (!IsCoinBase())
4198 206566 : return 0;
4199 721944 : int chain_depth = GetDepthInMainChain();
4200 721944 : assert(chain_depth >= 0); // coinbase tx should not be conflicted
4201 721944 : return std::max(0, (COINBASE_MATURITY+1) - chain_depth);
4202 928510 : }
4203 :
4204 928510 : bool CWalletTx::IsImmatureCoinBase() const
4205 : {
4206 : // note GetBlocksToMaturity is 0 for non-coinbase tx
4207 928510 : return GetBlocksToMaturity() > 0;
4208 : }
4209 :
4210 5388 : std::vector<OutputGroup> CWallet::GroupOutputs(const std::vector<COutput>& outputs, bool single_coin, const size_t max_ancestors) const {
4211 5388 : std::vector<OutputGroup> groups;
4212 5388 : std::map<CTxDestination, OutputGroup> gmap;
4213 5388 : std::set<CTxDestination> full_groups;
4214 :
4215 432315 : for (const auto& output : outputs) {
4216 426927 : if (output.fSpendable) {
4217 426805 : CTxDestination dst;
4218 426805 : CInputCoin input_coin = output.GetInputCoin();
4219 :
4220 426805 : size_t ancestors, descendants;
4221 426805 : chain().getTransactionAncestry(output.tx->GetHash(), ancestors, descendants);
4222 426805 : if (!single_coin && ExtractDestination(output.tx->tx->vout[output.i].scriptPubKey, dst)) {
4223 225689 : auto it = gmap.find(dst);
4224 225689 : if (it != gmap.end()) {
4225 : // Limit output groups to no more than OUTPUT_GROUP_MAX_ENTRIES
4226 : // number of entries, to protect against inadvertently creating
4227 : // a too-large transaction when using -avoidpartialspends to
4228 : // prevent breaking consensus or surprising users with a very
4229 : // high amount of fees.
4230 199425 : if (it->second.m_outputs.size() >= OUTPUT_GROUP_MAX_ENTRIES) {
4231 17988 : groups.push_back(it->second);
4232 17988 : it->second = OutputGroup{};
4233 17988 : full_groups.insert(dst);
4234 17988 : }
4235 199425 : it->second.Insert(input_coin, output.nDepth, output.tx->IsFromMe(ISMINE_ALL), ancestors, descendants);
4236 199425 : } else {
4237 26264 : gmap[dst].Insert(input_coin, output.nDepth, output.tx->IsFromMe(ISMINE_ALL), ancestors, descendants);
4238 : }
4239 225689 : } else {
4240 201116 : groups.emplace_back(input_coin, output.nDepth, output.tx->IsFromMe(ISMINE_ALL), ancestors, descendants);
4241 : }
4242 426805 : }
4243 : }
4244 5388 : if (!single_coin) {
4245 28931 : for (auto& it : gmap) {
4246 26264 : auto& group = it.second;
4247 26264 : if (full_groups.count(it.first) > 0) {
4248 : // Make this unattractive as we want coin selection to avoid it if possible
4249 2170 : group.m_ancestors = max_ancestors - 1;
4250 2170 : }
4251 26264 : groups.push_back(group);
4252 0 : }
4253 2667 : }
4254 : return groups;
4255 5388 : }
4256 :
4257 20316 : bool CWallet::IsCrypted() const
4258 : {
4259 20316 : return HasEncryptionKeys();
4260 : }
4261 :
4262 18870 : bool CWallet::IsLocked() const
4263 : {
4264 18870 : if (!IsCrypted()) {
4265 16285 : return false;
4266 : }
4267 2585 : LOCK(cs_wallet);
4268 2585 : return vMasterKey.empty();
4269 18870 : }
4270 :
4271 62 : bool CWallet::Lock()
4272 : {
4273 62 : if (!IsCrypted())
4274 0 : return false;
4275 :
4276 : {
4277 62 : LOCK(cs_wallet);
4278 62 : vMasterKey.clear();
4279 62 : }
4280 :
4281 62 : NotifyStatusChanged(this);
4282 62 : return true;
4283 62 : }
4284 :
4285 64 : bool CWallet::Unlock(const CKeyingMaterial& vMasterKeyIn, bool accept_no_keys)
4286 : {
4287 : {
4288 64 : LOCK(cs_wallet);
4289 321 : for (const auto& spk_man_pair : m_spk_managers) {
4290 257 : if (!spk_man_pair.second->CheckDecryptionKey(vMasterKeyIn, accept_no_keys)) {
4291 0 : return false;
4292 : }
4293 257 : }
4294 64 : vMasterKey = vMasterKeyIn;
4295 64 : }
4296 64 : NotifyStatusChanged(this);
4297 64 : return true;
4298 64 : }
4299 :
4300 4860 : std::set<ScriptPubKeyMan*> CWallet::GetActiveScriptPubKeyMans() const
4301 : {
4302 4860 : std::set<ScriptPubKeyMan*> spk_mans;
4303 14580 : for (bool internal : {false, true}) {
4304 38880 : for (OutputType t : OUTPUT_TYPES) {
4305 29160 : auto spk_man = GetScriptPubKeyMan(t, internal);
4306 29160 : if (spk_man) {
4307 27692 : spk_mans.insert(spk_man);
4308 27692 : }
4309 29160 : }
4310 : }
4311 : return spk_mans;
4312 4860 : }
4313 :
4314 4160 : std::set<ScriptPubKeyMan*> CWallet::GetAllScriptPubKeyMans() const
4315 : {
4316 4160 : std::set<ScriptPubKeyMan*> spk_mans;
4317 10405 : for (const auto& spk_man_pair : m_spk_managers) {
4318 6245 : spk_mans.insert(spk_man_pair.second.get());
4319 0 : }
4320 : return spk_mans;
4321 4160 : }
4322 :
4323 49209 : ScriptPubKeyMan* CWallet::GetScriptPubKeyMan(const OutputType& type, bool internal) const
4324 : {
4325 49209 : const std::map<OutputType, ScriptPubKeyMan*>& spk_managers = internal ? m_internal_spk_managers : m_external_spk_managers;
4326 49209 : std::map<OutputType, ScriptPubKeyMan*>::const_iterator it = spk_managers.find(type);
4327 49209 : if (it == spk_managers.end()) {
4328 1580 : WalletLogPrintf("%s scriptPubKey Manager for output type %d does not exist\n", internal ? "Internal" : "External", static_cast<int>(type));
4329 1580 : return nullptr;
4330 : }
4331 47629 : return it->second;
4332 49209 : }
4333 :
4334 0 : std::set<ScriptPubKeyMan*> CWallet::GetScriptPubKeyMans(const CScript& script, SignatureData& sigdata) const
4335 : {
4336 0 : std::set<ScriptPubKeyMan*> spk_mans;
4337 0 : for (const auto& spk_man_pair : m_spk_managers) {
4338 0 : if (spk_man_pair.second->CanProvide(script, sigdata)) {
4339 0 : spk_mans.insert(spk_man_pair.second.get());
4340 0 : }
4341 0 : }
4342 : return spk_mans;
4343 0 : }
4344 :
4345 949 : ScriptPubKeyMan* CWallet::GetScriptPubKeyMan(const CScript& script) const
4346 : {
4347 949 : SignatureData sigdata;
4348 2593 : for (const auto& spk_man_pair : m_spk_managers) {
4349 1644 : if (spk_man_pair.second->CanProvide(script, sigdata)) {
4350 871 : return spk_man_pair.second.get();
4351 : }
4352 773 : }
4353 78 : return nullptr;
4354 949 : }
4355 :
4356 384 : ScriptPubKeyMan* CWallet::GetScriptPubKeyMan(const uint256& id) const
4357 : {
4358 384 : if (m_spk_managers.count(id) > 0) {
4359 384 : return m_spk_managers.at(id).get();
4360 : }
4361 0 : return nullptr;
4362 384 : }
4363 :
4364 636935 : std::unique_ptr<SigningProvider> CWallet::GetSolvingProvider(const CScript& script) const
4365 : {
4366 636935 : SignatureData sigdata;
4367 636935 : return GetSolvingProvider(script, sigdata);
4368 636935 : }
4369 :
4370 636935 : std::unique_ptr<SigningProvider> CWallet::GetSolvingProvider(const CScript& script, SignatureData& sigdata) const
4371 : {
4372 1332514 : for (const auto& spk_man_pair : m_spk_managers) {
4373 695579 : if (spk_man_pair.second->CanProvide(script, sigdata)) {
4374 525365 : return spk_man_pair.second->GetSolvingProvider(script);
4375 : }
4376 170214 : }
4377 111570 : return nullptr;
4378 636935 : }
4379 :
4380 40051 : LegacyScriptPubKeyMan* CWallet::GetLegacyScriptPubKeyMan() const
4381 : {
4382 40051 : if (IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
4383 199 : return nullptr;
4384 : }
4385 : // Legacy wallets only have one ScriptPubKeyMan which is a LegacyScriptPubKeyMan.
4386 : // Everything in m_internal_spk_managers and m_external_spk_managers point to the same legacyScriptPubKeyMan.
4387 39852 : auto it = m_internal_spk_managers.find(OutputType::LEGACY);
4388 39852 : if (it == m_internal_spk_managers.end()) return nullptr;
4389 39418 : return dynamic_cast<LegacyScriptPubKeyMan*>(it->second);
4390 40051 : }
4391 :
4392 32583 : LegacyScriptPubKeyMan* CWallet::GetOrCreateLegacyScriptPubKeyMan()
4393 : {
4394 32583 : SetupLegacyScriptPubKeyMan();
4395 32583 : return GetLegacyScriptPubKeyMan();
4396 : }
4397 :
4398 32994 : void CWallet::SetupLegacyScriptPubKeyMan()
4399 : {
4400 32994 : if (!m_internal_spk_managers.empty() || !m_external_spk_managers.empty() || !m_spk_managers.empty() || IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
4401 : return;
4402 : }
4403 :
4404 694 : auto spk_manager = std::unique_ptr<ScriptPubKeyMan>(new LegacyScriptPubKeyMan(*this));
4405 2776 : for (const auto& type : OUTPUT_TYPES) {
4406 2082 : m_internal_spk_managers[type] = spk_manager.get();
4407 2082 : m_external_spk_managers[type] = spk_manager.get();
4408 : }
4409 694 : m_spk_managers[spk_manager->GetID()] = std::move(spk_manager);
4410 32994 : }
4411 :
4412 2665 : const CKeyingMaterial& CWallet::GetEncryptionKey() const
4413 : {
4414 2665 : return vMasterKey;
4415 : }
4416 :
4417 2783241 : bool CWallet::HasEncryptionKeys() const
4418 : {
4419 2783241 : return !mapMasterKeys.empty();
4420 : }
4421 :
4422 825 : void CWallet::ConnectScriptPubKeyManNotifiers()
4423 : {
4424 2028 : for (const auto& spk_man : GetActiveScriptPubKeyMans()) {
4425 1203 : spk_man->NotifyWatchonlyChanged.connect(NotifyWatchonlyChanged);
4426 1203 : spk_man->NotifyCanGetAddressesChanged.connect(NotifyCanGetAddressesChanged);
4427 0 : }
4428 825 : }
4429 :
4430 227 : void CWallet::LoadDescriptorScriptPubKeyMan(uint256 id, WalletDescriptor& desc)
4431 : {
4432 227 : auto spk_manager = std::unique_ptr<ScriptPubKeyMan>(new DescriptorScriptPubKeyMan(*this, desc));
4433 227 : m_spk_managers[id] = std::move(spk_manager);
4434 227 : }
4435 :
4436 34 : void CWallet::SetupDescriptorScriptPubKeyMans()
4437 : {
4438 34 : AssertLockHeld(cs_wallet);
4439 :
4440 : // Make a seed
4441 34 : CKey seed_key;
4442 34 : seed_key.MakeNewKey(true);
4443 34 : CPubKey seed = seed_key.GetPubKey();
4444 34 : assert(seed_key.VerifyPubKey(seed));
4445 :
4446 : // Get the extended key
4447 34 : CExtKey master_key;
4448 34 : master_key.SetSeed(seed_key.begin(), seed_key.size());
4449 :
4450 102 : for (bool internal : {false, true}) {
4451 272 : for (OutputType t : OUTPUT_TYPES) {
4452 204 : auto spk_manager = std::unique_ptr<DescriptorScriptPubKeyMan>(new DescriptorScriptPubKeyMan(*this, internal));
4453 204 : if (IsCrypted()) {
4454 24 : if (IsLocked()) {
4455 0 : throw std::runtime_error(std::string(__func__) + ": Wallet is locked, cannot setup new descriptors");
4456 : }
4457 24 : if (!spk_manager->CheckDecryptionKey(vMasterKey) && !spk_manager->Encrypt(vMasterKey, nullptr)) {
4458 0 : throw std::runtime_error(std::string(__func__) + ": Could not encrypt new descriptors");
4459 : }
4460 : }
4461 204 : spk_manager->SetupDescriptorGeneration(master_key, t);
4462 204 : uint256 id = spk_manager->GetID();
4463 204 : m_spk_managers[id] = std::move(spk_manager);
4464 204 : AddActiveScriptPubKeyMan(id, t, internal);
4465 204 : }
4466 : }
4467 34 : }
4468 :
4469 222 : void CWallet::AddActiveScriptPubKeyMan(uint256 id, OutputType type, bool internal)
4470 : {
4471 222 : WalletBatch batch(*database);
4472 222 : if (!batch.WriteActiveScriptPubKeyMan(static_cast<uint8_t>(type), id, internal)) {
4473 0 : throw std::runtime_error(std::string(__func__) + ": writing active ScriptPubKeyMan id failed");
4474 : }
4475 222 : LoadActiveScriptPubKeyMan(id, type, internal);
4476 222 : }
4477 :
4478 356 : void CWallet::LoadActiveScriptPubKeyMan(uint256 id, OutputType type, bool internal)
4479 : {
4480 356 : WalletLogPrintf("Setting spkMan to active: id = %s, type = %d, internal = %d\n", id.ToString(), static_cast<int>(type), static_cast<int>(internal));
4481 356 : auto& spk_mans = internal ? m_internal_spk_managers : m_external_spk_managers;
4482 356 : auto spk_man = m_spk_managers.at(id).get();
4483 356 : spk_man->SetInternal(internal);
4484 356 : spk_mans[type] = spk_man;
4485 :
4486 356 : NotifyCanGetAddressesChanged();
4487 356 : }
4488 :
4489 1357 : bool CWallet::IsLegacy() const
4490 : {
4491 1357 : if (m_internal_spk_managers.count(OutputType::LEGACY) == 0) {
4492 447 : return false;
4493 : }
4494 910 : auto spk_man = dynamic_cast<LegacyScriptPubKeyMan*>(m_internal_spk_managers.at(OutputType::LEGACY));
4495 910 : return spk_man != nullptr;
4496 1357 : }
4497 :
4498 184 : DescriptorScriptPubKeyMan* CWallet::GetDescriptorScriptPubKeyMan(const WalletDescriptor& desc) const
4499 : {
4500 1144 : for (auto& spk_man_pair : m_spk_managers) {
4501 : // Try to downcast to DescriptorScriptPubKeyMan then check if the descriptors match
4502 960 : DescriptorScriptPubKeyMan* spk_manager = dynamic_cast<DescriptorScriptPubKeyMan*>(spk_man_pair.second.get());
4503 960 : if (spk_manager != nullptr && spk_manager->HasWalletDescriptor(desc)) {
4504 26 : return spk_manager;
4505 : }
4506 1868 : }
4507 :
4508 158 : return nullptr;
4509 184 : }
4510 :
4511 92 : ScriptPubKeyMan* CWallet::AddWalletDescriptor(WalletDescriptor& desc, const FlatSigningProvider& signing_provider, const std::string& label)
4512 : {
4513 92 : if (!IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
4514 0 : WalletLogPrintf("Cannot add WalletDescriptor to a non-descriptor wallet\n");
4515 0 : return nullptr;
4516 : }
4517 :
4518 92 : LOCK(cs_wallet);
4519 92 : auto new_spk_man = std::unique_ptr<DescriptorScriptPubKeyMan>(new DescriptorScriptPubKeyMan(*this, desc));
4520 :
4521 : // If we already have this descriptor, remove it from the maps but add the existing cache to desc
4522 92 : auto old_spk_man = GetDescriptorScriptPubKeyMan(desc);
4523 92 : if (old_spk_man) {
4524 13 : WalletLogPrintf("Update existing descriptor: %s\n", desc.descriptor->ToString());
4525 :
4526 : {
4527 13 : LOCK(old_spk_man->cs_desc_man);
4528 13 : new_spk_man->SetCache(old_spk_man->GetWalletDescriptor().cache);
4529 13 : }
4530 :
4531 : // Remove from maps of active spkMans
4532 13 : auto old_spk_man_id = old_spk_man->GetID();
4533 39 : for (bool internal : {false, true}) {
4534 101 : for (OutputType t : OUTPUT_TYPES) {
4535 76 : auto active_spk_man = GetScriptPubKeyMan(t, internal);
4536 76 : if (active_spk_man && active_spk_man->GetID() == old_spk_man_id) {
4537 1 : if (internal) {
4538 0 : m_internal_spk_managers.erase(t);
4539 : } else {
4540 1 : m_external_spk_managers.erase(t);
4541 : }
4542 1 : break;
4543 : }
4544 151 : }
4545 : }
4546 13 : m_spk_managers.erase(old_spk_man_id);
4547 13 : }
4548 :
4549 : // Add the private keys to the descriptor
4550 143 : for (const auto& entry : signing_provider.keys) {
4551 51 : const CKey& key = entry.second;
4552 51 : new_spk_man->AddDescriptorKey(key, key.GetPubKey());
4553 0 : }
4554 :
4555 : // Top up key pool, the manager will generate new scriptPubKeys internally
4556 92 : new_spk_man->TopUp();
4557 :
4558 : // Apply the label if necessary
4559 : // Note: we disable labels for ranged descriptors
4560 92 : if (!desc.descriptor->IsRange()) {
4561 71 : auto script_pub_keys = new_spk_man->GetScriptPubKeys();
4562 71 : if (script_pub_keys.empty()) {
4563 0 : WalletLogPrintf("Could not generate scriptPubKeys (cache is empty)\n");
4564 0 : return nullptr;
4565 : }
4566 :
4567 71 : CTxDestination dest;
4568 71 : if (ExtractDestination(script_pub_keys.at(0), dest)) {
4569 70 : SetAddressBook(dest, label, "receive");
4570 70 : }
4571 71 : }
4572 :
4573 : // Save the descriptor to memory
4574 92 : auto ret = new_spk_man.get();
4575 92 : m_spk_managers[new_spk_man->GetID()] = std::move(new_spk_man);
4576 :
4577 : // Save the descriptor to DB
4578 92 : ret->WriteDescriptor();
4579 :
4580 92 : return ret;
4581 92 : }
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