diff options
Diffstat (limited to 'src/bitcoin-cli.cpp')
| -rw-r--r-- | src/bitcoin-cli.cpp | 192 |
1 files changed, 124 insertions, 68 deletions
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp index c085095a2..8d85789b4 100644 --- a/src/bitcoin-cli.cpp +++ b/src/bitcoin-cli.cpp @@ -1,5 +1,5 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2019 The Bitcoin Core developers +// Copyright (c) 2009-2020 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. @@ -9,16 +9,19 @@ #include <chainparamsbase.h> #include <clientversion.h> +#include <optional.h> #include <rpc/client.h> #include <rpc/protocol.h> #include <rpc/request.h> #include <util/strencodings.h> #include <util/system.h> #include <util/translation.h> +#include <util/url.h> #include <functional> #include <memory> #include <stdio.h> +#include <string> #include <tuple> #include <event2/buffer.h> @@ -29,6 +32,7 @@ #include <compat/stdin.h> const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr; +UrlDecodeFn* const URL_DECODE = urlDecode; static const char DEFAULT_RPCCONNECT[] = "127.0.0.1"; static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900; @@ -155,7 +159,7 @@ struct HTTPReply std::string body; }; -static const char *http_errorstring(int code) +static std::string http_errorstring(int code) { switch(code) { #if LIBEVENT_VERSION_NUMBER >= 0x02010300 @@ -228,6 +232,7 @@ public: const int ID_NETWORKINFO = 0; const int ID_BLOCKCHAININFO = 1; const int ID_WALLETINFO = 2; + const int ID_BALANCES = 3; /** Create a simulated `getinfo` request. */ UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) override @@ -239,6 +244,7 @@ public: result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO)); result.push_back(JSONRPCRequestObj("getblockchaininfo", NullUniValue, ID_BLOCKCHAININFO)); result.push_back(JSONRPCRequestObj("getwalletinfo", NullUniValue, ID_WALLETINFO)); + result.push_back(JSONRPCRequestObj("getbalances", NullUniValue, ID_BALANCES)); return result; } @@ -246,9 +252,9 @@ public: UniValue ProcessReply(const UniValue &batch_in) override { UniValue result(UniValue::VOBJ); - std::vector<UniValue> batch = JSONRPCProcessBatchReply(batch_in, 3); - // Errors in getnetworkinfo() and getblockchaininfo() are fatal, pass them on - // getwalletinfo() is allowed to fail in case there is no wallet. + const std::vector<UniValue> batch = JSONRPCProcessBatchReply(batch_in); + // Errors in getnetworkinfo() and getblockchaininfo() are fatal, pass them on; + // getwalletinfo() and getbalances() are allowed to fail if there is no wallet. if (!batch[ID_NETWORKINFO]["error"].isNull()) { return batch[ID_NETWORKINFO]; } @@ -265,13 +271,15 @@ public: result.pushKV("difficulty", batch[ID_BLOCKCHAININFO]["result"]["difficulty"]); result.pushKV("chain", UniValue(batch[ID_BLOCKCHAININFO]["result"]["chain"])); if (!batch[ID_WALLETINFO]["result"].isNull()) { - result.pushKV("balance", batch[ID_WALLETINFO]["result"]["balance"]); result.pushKV("keypoolsize", batch[ID_WALLETINFO]["result"]["keypoolsize"]); if (!batch[ID_WALLETINFO]["result"]["unlocked_until"].isNull()) { result.pushKV("unlocked_until", batch[ID_WALLETINFO]["result"]["unlocked_until"]); } result.pushKV("paytxfee", batch[ID_WALLETINFO]["result"]["paytxfee"]); } + if (!batch[ID_BALANCES]["result"].isNull()) { + result.pushKV("balance", batch[ID_BALANCES]["result"]["mine"]["trusted"]); + } result.pushKV("relayfee", batch[ID_NETWORKINFO]["result"]["relayfee"]); result.pushKV("warnings", batch[ID_NETWORKINFO]["result"]["warnings"]); return JSONRPCReplyObj(result, NullUniValue, 1); @@ -298,7 +306,7 @@ public: } }; -static UniValue CallRPC(BaseRequestHandler *rh, const std::string& strMethod, const std::vector<std::string>& args) +static UniValue CallRPC(BaseRequestHandler* rh, const std::string& strMethod, const std::vector<std::string>& args, const Optional<std::string>& rpcwallet = {}) { std::string host; // In preference order, we choose the following for the port: @@ -363,14 +371,12 @@ static UniValue CallRPC(BaseRequestHandler *rh, const std::string& strMethod, co // check if we should use a special wallet endpoint std::string endpoint = "/"; - if (!gArgs.GetArgs("-rpcwallet").empty()) { - std::string walletName = gArgs.GetArg("-rpcwallet", ""); - char *encodedURI = evhttp_uriencode(walletName.data(), walletName.size(), false); + if (rpcwallet) { + char* encodedURI = evhttp_uriencode(rpcwallet->data(), rpcwallet->size(), false); if (encodedURI) { - endpoint = "/wallet/"+ std::string(encodedURI); + endpoint = "/wallet/" + std::string(encodedURI); free(encodedURI); - } - else { + } else { throw CConnectionFailed("uri-encode failed"); } } @@ -412,6 +418,65 @@ static UniValue CallRPC(BaseRequestHandler *rh, const std::string& strMethod, co return reply; } +/** + * ConnectAndCallRPC wraps CallRPC with -rpcwait and an exception handler. + * + * @param[in] rh Pointer to RequestHandler. + * @param[in] strMethod Reference to const string method to forward to CallRPC. + * @param[in] rpcwallet Reference to const optional string wallet name to forward to CallRPC. + * @returns the RPC response as a UniValue object. + * @throws a CConnectionFailed std::runtime_error if connection failed or RPC server still in warmup. + */ +static UniValue ConnectAndCallRPC(BaseRequestHandler* rh, const std::string& strMethod, const std::vector<std::string>& args, const Optional<std::string>& rpcwallet = {}) +{ + UniValue response(UniValue::VOBJ); + // Execute and handle connection failures with -rpcwait. + const bool fWait = gArgs.GetBoolArg("-rpcwait", false); + do { + try { + response = CallRPC(rh, strMethod, args, rpcwallet); + if (fWait) { + const UniValue& error = find_value(response, "error"); + if (!error.isNull() && error["code"].get_int() == RPC_IN_WARMUP) { + throw CConnectionFailed("server in warmup"); + } + } + break; // Connection succeeded, no need to retry. + } catch (const CConnectionFailed&) { + if (fWait) { + UninterruptibleSleep(std::chrono::milliseconds{1000}); + } else { + throw; + } + } + } while (fWait); + return response; +} + +/** + * GetWalletBalances calls listwallets; if more than one wallet is loaded, it then + * fetches mine.trusted balances for each loaded wallet and pushes them to `result`. + * + * @param result Reference to UniValue object the wallet names and balances are pushed to. + */ +static void GetWalletBalances(UniValue& result) +{ + std::unique_ptr<BaseRequestHandler> rh{MakeUnique<DefaultRequestHandler>()}; + const UniValue listwallets = ConnectAndCallRPC(rh.get(), "listwallets", /* args=*/{}); + if (!find_value(listwallets, "error").isNull()) return; + const UniValue& wallets = find_value(listwallets, "result"); + if (wallets.size() <= 1) return; + + UniValue balances(UniValue::VOBJ); + for (const UniValue& wallet : wallets.getValues()) { + const std::string wallet_name = wallet.get_str(); + const UniValue getbalances = ConnectAndCallRPC(rh.get(), "getbalances", /* args=*/{}, wallet_name); + const UniValue& balance = find_value(getbalances, "result")["mine"]["trusted"]; + balances.pushKV(wallet_name, balance); + } + result.pushKV("balances", balances); +} + static int CommandLineRPC(int argc, char *argv[]) { std::string strPrint; @@ -468,9 +533,8 @@ static int CommandLineRPC(int argc, char *argv[]) } std::unique_ptr<BaseRequestHandler> rh; std::string method; - if (gArgs.GetBoolArg("-getinfo", false)) { + if (gArgs.IsArgSet("-getinfo")) { rh.reset(new GetinfoRequestHandler()); - method = ""; } else { rh.reset(new DefaultRequestHandler()); if (args.size() < 1) { @@ -479,62 +543,46 @@ static int CommandLineRPC(int argc, char *argv[]) method = args[0]; args.erase(args.begin()); // Remove trailing method name from arguments vector } - - // Execute and handle connection failures with -rpcwait - const bool fWait = gArgs.GetBoolArg("-rpcwait", false); - do { - try { - const UniValue reply = CallRPC(rh.get(), method, args); - - // Parse reply - const UniValue& result = find_value(reply, "result"); - const UniValue& error = find_value(reply, "error"); - - if (!error.isNull()) { - // Error - int code = error["code"].get_int(); - if (fWait && code == RPC_IN_WARMUP) - throw CConnectionFailed("server in warmup"); - strPrint = "error: " + error.write(); - nRet = abs(code); - if (error.isObject()) - { - UniValue errCode = find_value(error, "code"); - UniValue errMsg = find_value(error, "message"); - strPrint = errCode.isNull() ? "" : "error code: "+errCode.getValStr()+"\n"; - - if (errMsg.isStr()) - strPrint += "error message:\n"+errMsg.get_str(); - - if (errCode.isNum() && errCode.get_int() == RPC_WALLET_NOT_SPECIFIED) { - strPrint += "\nTry adding \"-rpcwallet=<filename>\" option to bitcoin-cli command line."; - } - } - } else { - // Result - if (result.isNull()) - strPrint = ""; - else if (result.isStr()) - strPrint = result.get_str(); - else - strPrint = result.write(2); + Optional<std::string> wallet_name{}; + if (gArgs.IsArgSet("-rpcwallet")) wallet_name = gArgs.GetArg("-rpcwallet", ""); + const UniValue reply = ConnectAndCallRPC(rh.get(), method, args, wallet_name); + + // Parse reply + UniValue result = find_value(reply, "result"); + const UniValue& error = find_value(reply, "error"); + if (!error.isNull()) { + // Error + strPrint = "error: " + error.write(); + nRet = abs(error["code"].get_int()); + if (error.isObject()) { + const UniValue& errCode = find_value(error, "code"); + const UniValue& errMsg = find_value(error, "message"); + strPrint = errCode.isNull() ? "" : ("error code: " + errCode.getValStr() + "\n"); + + if (errMsg.isStr()) { + strPrint += ("error message:\n" + errMsg.get_str()); + } + if (errCode.isNum() && errCode.get_int() == RPC_WALLET_NOT_SPECIFIED) { + strPrint += "\nTry adding \"-rpcwallet=<filename>\" option to bitcoin-cli command line."; } - // Connection succeeded, no need to retry. - break; } - catch (const CConnectionFailed&) { - if (fWait) - MilliSleep(1000); - else - throw; + } else { + if (gArgs.IsArgSet("-getinfo") && !gArgs.IsArgSet("-rpcwallet")) { + GetWalletBalances(result); // fetch multiwallet balances and append to result } - } while (fWait); - } - catch (const std::exception& e) { + // Result + if (result.isNull()) { + strPrint = ""; + } else if (result.isStr()) { + strPrint = result.get_str(); + } else { + strPrint = result.write(2); + } + } + } catch (const std::exception& e) { strPrint = std::string("error: ") + e.what(); nRet = EXIT_FAILURE; - } - catch (...) { + } catch (...) { PrintExceptionContinue(nullptr, "CommandLineRPC()"); throw; } @@ -545,11 +593,19 @@ static int CommandLineRPC(int argc, char *argv[]) return nRet; } -int main(int argc, char* argv[]) -{ #ifdef WIN32 +// Export main() and ensure working ASLR on Windows. +// Exporting a symbol will prevent the linker from stripping +// the .reloc section from the binary, which is a requirement +// for ASLR. This is a temporary workaround until a fixed +// version of binutils is used for releases. +__declspec(dllexport) int main(int argc, char* argv[]) +{ util::WinCmdLineArgs winArgs; std::tie(argc, argv) = winArgs.get(); +#else +int main(int argc, char* argv[]) +{ #endif SetupEnvironment(); if (!SetupNetworking()) { |