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src/wallet/rpcwallet.cpp
| Show First 20 Lines • Show All 2,276 Lines • ▼ Show 20 Lines | RPCHelpMan{ | ||||
| "\nUnlock the wallet for 60 seconds\n" + | "\nUnlock the wallet for 60 seconds\n" + | ||||
| HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60") + | HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60") + | ||||
| "\nLock the wallet again (before 60 seconds)\n" + | "\nLock the wallet again (before 60 seconds)\n" + | ||||
| HelpExampleCli("walletlock", "") + "\nAs a JSON-RPC call\n" + | HelpExampleCli("walletlock", "") + "\nAs a JSON-RPC call\n" + | ||||
| HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")}, | HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")}, | ||||
| } | } | ||||
| .Check(request); | .Check(request); | ||||
| int64_t nSleepTime; | |||||
| { | |||||
| auto locked_chain = pwallet->chain().lock(); | auto locked_chain = pwallet->chain().lock(); | ||||
| LOCK(pwallet->cs_wallet); | LOCK(pwallet->cs_wallet); | ||||
| if (!pwallet->IsCrypted()) { | if (!pwallet->IsCrypted()) { | ||||
| throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, | throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, | ||||
| "Error: running with an unencrypted wallet, but " | "Error: running with an unencrypted wallet, but " | ||||
| "walletpassphrase was called."); | "walletpassphrase was called."); | ||||
| } | } | ||||
| // Note that the walletpassphrase is stored in request.params[0] which is | // Note that the walletpassphrase is stored in request.params[0] which | ||||
| // not mlock()ed | // is not mlock()ed | ||||
| SecureString strWalletPass; | SecureString strWalletPass; | ||||
| strWalletPass.reserve(100); | strWalletPass.reserve(100); | ||||
| // TODO: get rid of this .c_str() by implementing | // TODO: get rid of this .c_str() by implementing | ||||
| // SecureString::operator=(std::string) | // SecureString::operator=(std::string) | ||||
| // Alternately, find a way to make request.params[0] mlock()'d to begin | // Alternately, find a way to make request.params[0] mlock()'d to begin | ||||
| // with. | // with. | ||||
| strWalletPass = request.params[0].get_str().c_str(); | strWalletPass = request.params[0].get_str().c_str(); | ||||
| // Get the timeout | // Get the timeout | ||||
| int64_t nSleepTime = request.params[1].get_int64(); | nSleepTime = request.params[1].get_int64(); | ||||
| // Timeout cannot be negative, otherwise it will relock immediately | // Timeout cannot be negative, otherwise it will relock immediately | ||||
| if (nSleepTime < 0) { | if (nSleepTime < 0) { | ||||
| throw JSONRPCError(RPC_INVALID_PARAMETER, | throw JSONRPCError(RPC_INVALID_PARAMETER, | ||||
| "Timeout cannot be negative."); | "Timeout cannot be negative."); | ||||
| } | } | ||||
| // Clamp timeout | // Clamp timeout | ||||
| // larger values trigger a macos/libevent bug? | // larger values trigger a macos/libevent bug? | ||||
| constexpr int64_t MAX_SLEEP_TIME = 100000000; | constexpr int64_t MAX_SLEEP_TIME = 100000000; | ||||
| if (nSleepTime > MAX_SLEEP_TIME) { | if (nSleepTime > MAX_SLEEP_TIME) { | ||||
| nSleepTime = MAX_SLEEP_TIME; | nSleepTime = MAX_SLEEP_TIME; | ||||
| } | } | ||||
| if (strWalletPass.empty()) { | if (strWalletPass.empty()) { | ||||
| throw JSONRPCError(RPC_INVALID_PARAMETER, | throw JSONRPCError(RPC_INVALID_PARAMETER, | ||||
| "passphrase can not be empty"); | "passphrase can not be empty"); | ||||
| } | } | ||||
| if (!pwallet->Unlock(strWalletPass)) { | if (!pwallet->Unlock(strWalletPass)) { | ||||
| throw JSONRPCError( | throw JSONRPCError( | ||||
| RPC_WALLET_PASSPHRASE_INCORRECT, | RPC_WALLET_PASSPHRASE_INCORRECT, | ||||
| "Error: The wallet passphrase entered was incorrect."); | "Error: The wallet passphrase entered was incorrect."); | ||||
| } | } | ||||
| pwallet->TopUpKeyPool(); | pwallet->TopUpKeyPool(); | ||||
| pwallet->nRelockTime = GetTime() + nSleepTime; | pwallet->nRelockTime = GetTime() + nSleepTime; | ||||
| } | |||||
| // rpcRunLater must be called without cs_wallet held otherwise a deadlock | |||||
| // can occur. The deadlock would happen when RPCRunLater removes the | |||||
| // previous timer (and waits for the callback to finish if already running) | |||||
| // and the callback locks cs_wallet. | |||||
| AssertLockNotHeld(wallet->cs_wallet); | |||||
| // Keep a weak pointer to the wallet so that it is possible to unload the | // Keep a weak pointer to the wallet so that it is possible to unload the | ||||
| // wallet before the following callback is called. If a valid shared pointer | // wallet before the following callback is called. If a valid shared pointer | ||||
| // is acquired in the callback then the wallet is still loaded. | // is acquired in the callback then the wallet is still loaded. | ||||
| std::weak_ptr<CWallet> weak_wallet = wallet; | std::weak_ptr<CWallet> weak_wallet = wallet; | ||||
| pwallet->chain().rpcRunLater( | pwallet->chain().rpcRunLater( | ||||
| strprintf("lockwallet(%s)", pwallet->GetName()), | strprintf("lockwallet(%s)", pwallet->GetName()), | ||||
| [weak_wallet] { | [weak_wallet] { | ||||
| if (auto shared_wallet = weak_wallet.lock()) { | if (auto shared_wallet = weak_wallet.lock()) { | ||||
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