From e067673f4ea7a74b7251282b48ea9ca57416533a Mon Sep 17 00:00:00 2001 From: Russell Yanofsky Date: Mon, 14 Aug 2017 19:44:02 -0400 Subject: [PATCH] Avoid treating null RPC arguments different from missing arguments This changes RPC methods to treat null arguments the same as missing arguments, instead of throwing type errors. Specifically: - `getbalance` method now returns the wallet balance when the `account` param is null instead of throwing a type error (same as when parameter is missing). It is still an error to supply `minconf` or `watchonly` options when the account is null. - `addnode` and `setban` methods now return help text instead of type errors if `command` params are null (same as when params are missing). - `sendrawtransaction`, `setaccount`, `movecmd`, `sendfrom`, `addmultisigaddress`, `listaccounts`, `lockunspent` methods accept null default values where missing values were previously allowed, and treat them the same. --- src/rpc/net.cpp | 4 ++-- src/rpc/rawtransaction.cpp | 2 +- src/wallet/rpcwallet.cpp | 25 ++++++++++++------------- 3 files changed, 15 insertions(+), 16 deletions(-) diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp index e6b210a199..f19b968244 100644 --- a/src/rpc/net.cpp +++ b/src/rpc/net.cpp @@ -193,7 +193,7 @@ UniValue getpeerinfo(const JSONRPCRequest& request) UniValue addnode(const JSONRPCRequest& request) { std::string strCommand; - if (request.params.size() == 2) + if (!request.params[1].isNull()) strCommand = request.params[1].get_str(); if (request.fHelp || request.params.size() != 2 || (strCommand != "onetry" && strCommand != "add" && strCommand != "remove")) @@ -490,7 +490,7 @@ UniValue getnetworkinfo(const JSONRPCRequest& request) UniValue setban(const JSONRPCRequest& request) { std::string strCommand; - if (request.params.size() >= 2) + if (!request.params[1].isNull()) strCommand = request.params[1].get_str(); if (request.fHelp || request.params.size() < 2 || (strCommand != "add" && strCommand != "remove")) diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 9d9fef6649..10fc9c162d 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -922,7 +922,7 @@ UniValue sendrawtransaction(const JSONRPCRequest& request) const uint256& hashTx = tx->GetHash(); CAmount nMaxRawTxFee = maxTxFee; - if (request.params.size() > 1 && request.params[1].get_bool()) + if (!request.params[1].isNull() && request.params[1].get_bool()) nMaxRawTxFee = 0; CCoinsViewCache &view = *pcoinsTip; diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp index 00cb99ada2..275173aa4f 100644 --- a/src/wallet/rpcwallet.cpp +++ b/src/wallet/rpcwallet.cpp @@ -280,7 +280,7 @@ UniValue setaccount(const JSONRPCRequest& request) throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address"); std::string strAccount; - if (request.params.size() > 1) + if (!request.params[1].isNull()) strAccount = AccountFromValue(request.params[1]); // Only add the account if the address is yours. @@ -768,7 +768,7 @@ UniValue getbalance(const JSONRPCRequest& request) LOCK2(cs_main, pwallet->cs_wallet); - if (request.params.size() == 0) + if (request.params[0].isNull() && request.params[1].isNull() && request.params[2].isNull()) return ValueFromAmount(pwallet->GetBalance()); const std::string& account_param = request.params[0].get_str(); @@ -838,11 +838,11 @@ UniValue movecmd(const JSONRPCRequest& request) CAmount nAmount = AmountFromValue(request.params[2]); if (nAmount <= 0) throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send"); - if (request.params.size() > 3) + if (!request.params[3].isNull()) // unused parameter, used to be nMinDepth, keep type-checking it though (void)request.params[3].get_int(); std::string strComment; - if (request.params.size() > 4) + if (!request.params[4].isNull()) strComment = request.params[4].get_str(); if (!pwallet->AccountMove(strFrom, strTo, nAmount, strComment)) { @@ -899,7 +899,7 @@ UniValue sendfrom(const JSONRPCRequest& request) if (nAmount <= 0) throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send"); int nMinDepth = 1; - if (request.params.size() > 3) + if (!request.params[3].isNull()) nMinDepth = request.params[3].get_int(); CWalletTx wtx; @@ -1105,7 +1105,7 @@ UniValue addmultisigaddress(const JSONRPCRequest& request) LOCK2(cs_main, pwallet->cs_wallet); std::string strAccount; - if (request.params.size() > 2) + if (!request.params[2].isNull()) strAccount = AccountFromValue(request.params[2]); // Construct using pay-to-script-hash: @@ -1711,10 +1711,10 @@ UniValue listaccounts(const JSONRPCRequest& request) LOCK2(cs_main, pwallet->cs_wallet); int nMinDepth = 1; - if (request.params.size() > 0) + if (!request.params[0].isNull()) nMinDepth = request.params[0].get_int(); isminefilter includeWatchonly = ISMINE_SPENDABLE; - if(request.params.size() > 1) + if(!request.params[1].isNull()) if(request.params[1].get_bool()) includeWatchonly = includeWatchonly | ISMINE_WATCH_ONLY; @@ -2361,19 +2361,18 @@ UniValue lockunspent(const JSONRPCRequest& request) LOCK2(cs_main, pwallet->cs_wallet); - if (request.params.size() == 1) - RPCTypeCheck(request.params, {UniValue::VBOOL}); - else - RPCTypeCheck(request.params, {UniValue::VBOOL, UniValue::VARR}); + RPCTypeCheckArgument(request.params[0], UniValue::VBOOL); bool fUnlock = request.params[0].get_bool(); - if (request.params.size() == 1) { + if (request.params[1].isNull()) { if (fUnlock) pwallet->UnlockAllCoins(); return true; } + RPCTypeCheckArgument(request.params[1], UniValue::VARR); + UniValue outputs = request.params[1].get_array(); for (unsigned int idx = 0; idx < outputs.size(); idx++) { const UniValue& output = outputs[idx];