Merge bitcoin/bitcoin#25737: rpc: treat univalue type check error as RPC_TYPE_ERROR, not RPC_MISC_ERROR

e68d380797918e655decb76fc11725197d6d5323 rpc: remove unneeded RPCTypeCheckArgument checks (furszy)
55566630c60d23993a52ed54c95e7891f4588d57 rpc: treat univalue type check error as RPC_TYPE_ERROR, not RPC_MISC_ERROR (furszy)

Pull request description:

  Same rationale as #26039, tackling another angle of the problem.

  #### Context
  We have the same univalue type error checking code spread/duplicated few times:
  `RPCTypeCheckObj`, `RPCTypeCheckArgument`, `UniValue::checkType`.

  In the first two functions, we are properly returning an `RPC_TYPE_ERROR` while in `UniValue::checkType`
  we are throwing an `std::runtime_error` which is caught by the RPC server request handler, who invalidly
  treats it as `RPC_MISC_ERROR` (which is a generic error return code that provides no information to the user).

  #### Proposed Changes

  Throw a custom exception from `Univalue::checkType` (instead of a plain
  `std::runtime_error`) and catch it on the RPC server request handler.

  So we properly return `RPC_TYPE_ERROR` (-3) on every arg type error and
  not the general `RPC_MISC_ERROR` (-1).

  This will allow us to remove all the `RPCTypeCheckArgument` calls. As them are redundant since #25629.

Top commit has no ACKs.

Tree-SHA512: 4e4c41851fd4e2b01a2d8b94e71513f9831f810768ebd89684caca4901e87d3677980003949bcce441f9ca607a1b38a5894839b6c492f5947b8bab8cd9423ba6
This commit is contained in:
fanquake 2022-09-21 11:16:16 +01:00
commit b1f44ecdcd
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15 changed files with 30 additions and 39 deletions

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@ -64,7 +64,6 @@ static RPCHelpMan estimatesmartfee()
[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
RPCTypeCheck(request.params, {UniValue::VNUM, UniValue::VSTR});
RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
CBlockPolicyEstimator& fee_estimator = EnsureAnyFeeEstimator(request.context);
const NodeContext& node = EnsureAnyNodeContext(request.context);
@ -157,7 +156,6 @@ static RPCHelpMan estimaterawfee()
[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
RPCTypeCheck(request.params, {UniValue::VNUM, UniValue::VNUM}, true);
RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
CBlockPolicyEstimator& fee_estimator = EnsureAnyFeeEstimator(request.context);

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@ -605,8 +605,7 @@ static RPCHelpMan gettxspendingprevout()
},
[&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
RPCTypeCheckArgument(request.params[0], UniValue::VARR);
const UniValue& output_params = request.params[0];
const UniValue& output_params = request.params[0].get_array();
if (output_params.empty()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, outputs are missing");
}

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@ -466,8 +466,7 @@ UniValue CRPCTable::execute(const JSONRPCRequest &request) const
static bool ExecuteCommand(const CRPCCommand& command, const JSONRPCRequest& request, UniValue& result, bool last_handler)
{
try
{
try {
RPCCommandExecution execution(request.strMethod);
// Execute, convert arguments to array if necessary
if (request.params.isObject()) {
@ -475,9 +474,9 @@ static bool ExecuteCommand(const CRPCCommand& command, const JSONRPCRequest& req
} else {
return command.actor(request, result, last_handler);
}
}
catch (const std::exception& e)
{
} catch (const UniValue::type_error& e) {
throw JSONRPCError(RPC_TYPE_ERROR, e.what());
} catch (const std::exception& e) {
throw JSONRPCError(RPC_MISC_ERROR, e.what());
}
}

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@ -19,6 +19,11 @@ class UniValue {
public:
enum VType { VNULL, VOBJ, VARR, VSTR, VNUM, VBOOL, };
class type_error : public std::runtime_error
{
using std::runtime_error::runtime_error;
};
UniValue() { typ = VNULL; }
UniValue(UniValue::VType initialType, const std::string& initialStr = "") {
typ = initialType;

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@ -210,7 +210,7 @@ const UniValue& UniValue::operator[](size_t index) const
void UniValue::checkType(const VType& expected) const
{
if (typ != expected) {
throw std::runtime_error{"JSON value of type " + std::string{uvTypeName(typ)} + " is not of expected type " +
throw type_error{"JSON value of type " + std::string{uvTypeName(typ)} + " is not of expected type " +
std::string{uvTypeName(expected)}};
}
}

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@ -290,8 +290,6 @@ RPCHelpMan lockunspent()
LOCK(pwallet->cs_wallet);
RPCTypeCheckArgument(request.params[0], UniValue::VBOOL);
bool fUnlock = request.params[0].get_bool();
const bool persistent{request.params[2].isNull() ? false : request.params[2].get_bool()};
@ -304,9 +302,7 @@ RPCHelpMan lockunspent()
return true;
}
RPCTypeCheckArgument(request.params[1], UniValue::VARR);
const UniValue& output_params = request.params[1];
const UniValue& output_params = request.params[1].get_array();
// Create and validate the COutPoints first.
@ -566,19 +562,16 @@ RPCHelpMan listunspent()
int nMinDepth = 1;
if (!request.params[0].isNull()) {
RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
nMinDepth = request.params[0].getInt<int>();
}
int nMaxDepth = 9999999;
if (!request.params[1].isNull()) {
RPCTypeCheckArgument(request.params[1], UniValue::VNUM);
nMaxDepth = request.params[1].getInt<int>();
}
std::set<CTxDestination> destinations;
if (!request.params[2].isNull()) {
RPCTypeCheckArgument(request.params[2], UniValue::VARR);
UniValue inputs = request.params[2].get_array();
for (unsigned int idx = 0; idx < inputs.size(); idx++) {
const UniValue& input = inputs[idx];
@ -594,7 +587,6 @@ RPCHelpMan listunspent()
bool include_unsafe = true;
if (!request.params[3].isNull()) {
RPCTypeCheckArgument(request.params[3], UniValue::VBOOL);
include_unsafe = request.params[3].get_bool();
}

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@ -503,7 +503,6 @@ void FundTransaction(CWallet& wallet, CMutableTransaction& tx, CAmount& fee_out,
coinControl.fAllowWatchOnly = options.get_bool();
}
else {
RPCTypeCheckArgument(options, UniValue::VOBJ);
RPCTypeCheckObj(options,
{
{"add_inputs", UniValueType(UniValue::VBOOL)},
@ -1653,7 +1652,6 @@ RPCHelpMan walletcreatefundedpsbt()
bool rbf{wallet.m_signal_rbf};
const UniValue &replaceable_arg = options["replaceable"];
if (!replaceable_arg.isNull()) {
RPCTypeCheckArgument(replaceable_arg, UniValue::VBOOL);
rbf = replaceable_arg.isTrue();
}
CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf);

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@ -122,11 +122,11 @@ class PrioritiseTransactionTest(BitcoinTestFramework):
# Test `prioritisetransaction` invalid `dummy`
txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
assert_raises_rpc_error(-8, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.", self.nodes[0].prioritisetransaction, txid, 1, 0)
# Test `prioritisetransaction` invalid `fee_delta`
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
self.test_diamond()

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@ -262,12 +262,12 @@ class BlockchainTest(BitcoinTestFramework):
assert_raises_rpc_error(-1, 'getchaintxstats', self.nodes[0].getchaintxstats, 0, '', 0)
# Test `getchaintxstats` invalid `nblocks`
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].getchaintxstats, '')
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].getchaintxstats, '')
assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, -1)
assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, self.nodes[0].getblockcount())
# Test `getchaintxstats` invalid `blockhash`
assert_raises_rpc_error(-1, "JSON value of type number is not of expected type string", self.nodes[0].getchaintxstats, blockhash=0)
assert_raises_rpc_error(-3, "JSON value of type number is not of expected type string", self.nodes[0].getchaintxstats, blockhash=0)
assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 1, for '0')", self.nodes[0].getchaintxstats, blockhash='0')
assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].getchaintxstats, blockhash='ZZZ0000000000000000000000000000000000000000000000000000000000000')
assert_raises_rpc_error(-5, "Block not found", self.nodes[0].getchaintxstats, blockhash='0000000000000000000000000000000000000000000000000000000000000000')
@ -547,7 +547,7 @@ class BlockchainTest(BitcoinTestFramework):
datadir = get_datadir_path(self.options.tmpdir, 0)
self.log.info("Test getblock with invalid verbosity type returns proper error message")
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", node.getblock, blockhash, "2")
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", node.getblock, blockhash, "2")
def move_block_file(old, new):
old_path = os.path.join(datadir, self.chain, 'blocks', old)

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@ -302,7 +302,7 @@ class RawTransactionsTest(BitcoinTestFramework):
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
assert_raises_rpc_error(-5, "Unknown change type ''", self.nodes[2].fundrawtransaction, rawtx, {'change_type': ''})
rawtx = self.nodes[2].fundrawtransaction(rawtx, {'change_type': 'bech32'})
dec_tx = self.nodes[2].decoderawtransaction(rawtx['hex'])

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@ -92,7 +92,7 @@ class HelpRpcTest(BitcoinTestFramework):
assert_raises_rpc_error(-1, 'help', node.help, 'foo', 'bar')
# invalid argument
assert_raises_rpc_error(-1, "JSON value of type number is not of expected type string", node.help, 0)
assert_raises_rpc_error(-3, "JSON value of type number is not of expected type string", node.help, 0)
# help of unknown command
assert_equal(node.help('foo'), 'help: unknown command: foo')

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@ -124,13 +124,13 @@ class RawTransactionsTest(BitcoinTestFramework):
# 6. invalid parameters - supply txid and invalid boolean values (strings) for verbose
for value in ["True", "False"]:
assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txid=txId, verbose=value)
assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txid=txId, verbose=value)
# 7. invalid parameters - supply txid and empty array
assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txId, [])
assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txId, [])
# 8. invalid parameters - supply txid and empty dict
assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txId, {})
assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txId, {})
# Make a tx by sending, then generate 2 blocks; block1 has the tx in it
tx = self.wallet.send_self_transfer(from_node=self.nodes[2])['txid']
@ -152,7 +152,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# We should not get the tx if we provide an unrelated block
assert_raises_rpc_error(-5, "No such transaction found", self.nodes[n].getrawtransaction, txid=tx, blockhash=block2)
# An invalid block hash should raise the correct errors
assert_raises_rpc_error(-1, "JSON value of type bool is not of expected type string", self.nodes[n].getrawtransaction, txid=tx, blockhash=True)
assert_raises_rpc_error(-3, "JSON value of type bool is not of expected type string", self.nodes[n].getrawtransaction, txid=tx, blockhash=True)
assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 6, for 'foobar')", self.nodes[n].getrawtransaction, txid=tx, blockhash="foobar")
assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 8, for 'abcd1234')", self.nodes[n].getrawtransaction, txid=tx, blockhash="abcd1234")
foo = "ZZZ0000000000000000000000000000000000000000000000000000000000000"
@ -181,8 +181,8 @@ class RawTransactionsTest(BitcoinTestFramework):
# Test `createrawtransaction` invalid `inputs`
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, 'foo', {})
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type object", self.nodes[0].createrawtransaction, ['foo'], {})
assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[0].createrawtransaction, [{}], {})
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type object", self.nodes[0].createrawtransaction, ['foo'], {})
assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[0].createrawtransaction, [{}], {})
assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].createrawtransaction, [{'txid': 'foo'}], {})
txid = "ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844"
assert_raises_rpc_error(-8, f"txid must be hexadecimal string (not '{txid}')", self.nodes[0].createrawtransaction, [{'txid': txid}], {})
@ -207,7 +207,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# Test `createrawtransaction` invalid `outputs`
address = getnewdestination()[2]
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, [], 'foo')
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, [], 'foo')
self.nodes[0].createrawtransaction(inputs=[], outputs={}) # Should not throw for backwards compatibility
self.nodes[0].createrawtransaction(inputs=[], outputs=[])
assert_raises_rpc_error(-8, "Data must be hexadecimal string", self.nodes[0].createrawtransaction, [], {'data': 'foo'})

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@ -415,7 +415,7 @@ class WalletTest(BitcoinTestFramework):
assert_raises_rpc_error(-3, "Invalid amount", self.nodes[0].sendtoaddress, self.nodes[2].getnewaddress(), "1f-4")
# This will raise an exception since generate does not accept a string
assert_raises_rpc_error(-1, "not of expected type number", self.generate, self.nodes[0], "2")
assert_raises_rpc_error(-3, "not of expected type number", self.generate, self.nodes[0], "2")
if not self.options.descriptors:

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@ -177,8 +177,8 @@ class WalletHDTest(BitcoinTestFramework):
# Sethdseed parameter validity
assert_raises_rpc_error(-1, 'sethdseed', self.nodes[0].sethdseed, False, new_seed, 0)
assert_raises_rpc_error(-5, "Invalid private key", self.nodes[1].sethdseed, False, "not_wif")
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type bool", self.nodes[1].sethdseed, "Not_bool")
assert_raises_rpc_error(-1, "JSON value of type bool is not of expected type string", self.nodes[1].sethdseed, False, True)
assert_raises_rpc_error(-3, "JSON value of type string is not of expected type bool", self.nodes[1].sethdseed, "Not_bool")
assert_raises_rpc_error(-3, "JSON value of type bool is not of expected type string", self.nodes[1].sethdseed, False, True)
assert_raises_rpc_error(-5, "Already have this key", self.nodes[1].sethdseed, False, new_seed)
assert_raises_rpc_error(-5, "Already have this key", self.nodes[1].sethdseed, False, self.nodes[1].dumpprivkey(self.nodes[1].getnewaddress()))

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@ -356,7 +356,7 @@ class MultiWalletTest(BitcoinTestFramework):
self.log.info("Test dynamic wallet unloading")
# Test `unloadwallet` errors
assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[0].unloadwallet)
assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[0].unloadwallet)
assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", self.nodes[0].unloadwallet, "dummy")
assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", node.get_wallet_rpc("dummy").unloadwallet)
assert_raises_rpc_error(-8, "RPC endpoint wallet and wallet_name parameter specify different wallets", w1.unloadwallet, "w2"),