diff options
| -rw-r--r-- | src/rpc/rawtransaction.cpp | 32 | ||||
| -rwxr-xr-x | test/functional/rpc_decodescript.py | 60 |
2 files changed, 89 insertions, 3 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 2659b07509..0cb34a0cca 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -614,6 +614,38 @@ UniValue decodescript(const JSONRPCRequest& request) // P2SH cannot be wrapped in a P2SH. If this script is already a P2SH, // don't return the address for a P2SH of the P2SH. r.pushKV("p2sh", EncodeDestination(CScriptID(script))); + // P2SH and witness programs cannot be wrapped in P2WSH, if this script + // is a witness program, don't return addresses for a segwit programs. + if (type.get_str() == "pubkey" || type.get_str() == "pubkeyhash" || type.get_str() == "multisig" || type.get_str() == "nonstandard") { + txnouttype which_type; + std::vector<std::vector<unsigned char>> solutions_data; + Solver(script, which_type, solutions_data); + // Uncompressed pubkeys cannot be used with segwit checksigs. + // If the script contains an uncompressed pubkey, skip encoding of a segwit program. + if ((which_type == TX_PUBKEY) || (which_type == TX_MULTISIG)) { + for (const auto& solution : solutions_data) { + if ((solution.size() != 1) && !CPubKey(solution).IsCompressed()) { + return r; + } + } + } + UniValue sr(UniValue::VOBJ); + CScript segwitScr; + if (which_type == TX_PUBKEY) { + segwitScr = GetScriptForDestination(WitnessV0KeyHash(Hash160(solutions_data[0].begin(), solutions_data[0].end()))); + } else if (which_type == TX_PUBKEYHASH) { + segwitScr = GetScriptForDestination(WitnessV0KeyHash(solutions_data[0])); + } else { + // Scripts that are not fit for P2WPKH are encoded as P2WSH. + // Newer segwit program versions should be considered when then become available. + uint256 scriptHash; + CSHA256().Write(script.data(), script.size()).Finalize(scriptHash.begin()); + segwitScr = GetScriptForDestination(WitnessV0ScriptHash(scriptHash)); + } + ScriptPubKeyToUniv(segwitScr, sr, true); + sr.pushKV("p2sh-segwit", EncodeDestination(CScriptID(segwitScr))); + r.pushKV("segwit", sr); + } } return r; diff --git a/test/functional/rpc_decodescript.py b/test/functional/rpc_decodescript.py index 1ffc570437..d588151768 100755 --- a/test/functional/rpc_decodescript.py +++ b/test/functional/rpc_decodescript.py @@ -50,8 +50,11 @@ class DecodeScriptTest(BitcoinTestFramework): def decodescript_script_pub_key(self): public_key = '03b0da749730dc9b4b1f4a14d6902877a92541f5368778853d9c4a0cb7802dcfb2' push_public_key = '21' + public_key - public_key_hash = '11695b6cd891484c2d49ec5aa738ec2b2f897777' + public_key_hash = '5dd1d3a048119c27b28293056724d9522f26d945' push_public_key_hash = '14' + public_key_hash + uncompressed_public_key = '04b0da749730dc9b4b1f4a14d6902877a92541f5368778853d9c4a0cb7802dcfb25e01fc8fde47c96c98a4f3a8123e33a38a50cf9025cc8c4494a518f991792bb7' + push_uncompressed_public_key = '41' + uncompressed_public_key + p2wsh_p2pk_script_hash = 'd8590cf8ea0674cf3d49fd7ca249b85ef7485dea62c138468bddeb20cd6519f7' # below are test cases for all of the standard transaction types @@ -59,18 +62,26 @@ class DecodeScriptTest(BitcoinTestFramework): # <pubkey> OP_CHECKSIG rpc_result = self.nodes[0].decodescript(push_public_key + 'ac') assert_equal(public_key + ' OP_CHECKSIG', rpc_result['asm']) + # P2PK is translated to P2WPKH + assert_equal('0 ' + public_key_hash, rpc_result['segwit']['asm']) # 2) P2PKH scriptPubKey # OP_DUP OP_HASH160 <PubKeyHash> OP_EQUALVERIFY OP_CHECKSIG rpc_result = self.nodes[0].decodescript('76a9' + push_public_key_hash + '88ac') assert_equal('OP_DUP OP_HASH160 ' + public_key_hash + ' OP_EQUALVERIFY OP_CHECKSIG', rpc_result['asm']) + # P2PKH is translated to P2WPKH + assert_equal('0 ' + public_key_hash, rpc_result['segwit']['asm']) # 3) multisig scriptPubKey # <m> <A pubkey> <B pubkey> <C pubkey> <n> OP_CHECKMULTISIG # just imagine that the pub keys used below are different. # for our purposes here it does not matter that they are the same even though it is unrealistic. - rpc_result = self.nodes[0].decodescript('52' + push_public_key + push_public_key + push_public_key + '53ae') + multisig_script = '52' + push_public_key + push_public_key + push_public_key + '53ae' + rpc_result = self.nodes[0].decodescript(multisig_script) assert_equal('2 ' + public_key + ' ' + public_key + ' ' + public_key + ' 3 OP_CHECKMULTISIG', rpc_result['asm']) + # multisig in P2WSH + multisig_script_hash = bytes_to_hex_str(sha256(hex_str_to_bytes(multisig_script))) + assert_equal('0 ' + multisig_script_hash, rpc_result['segwit']['asm']) # 4) P2SH scriptPubKey # OP_HASH160 <Hash160(redeemScript)> OP_EQUAL. @@ -78,6 +89,8 @@ class DecodeScriptTest(BitcoinTestFramework): # but this works the same for purposes of this test. rpc_result = self.nodes[0].decodescript('a9' + push_public_key_hash + '87') assert_equal('OP_HASH160 ' + public_key_hash + ' OP_EQUAL', rpc_result['asm']) + # P2SH does not work in segwit secripts. decodescript should not return a result for it. + assert 'segwit' not in rpc_result # 5) null data scriptPubKey # use a signature look-alike here to make sure that we do not decode random data as a signature. @@ -101,8 +114,49 @@ class DecodeScriptTest(BitcoinTestFramework): # <sender-pubkey> OP_CHECKSIG # # lock until block 500,000 - rpc_result = self.nodes[0].decodescript('63' + push_public_key + 'ad670320a107b17568' + push_public_key + 'ac') + cltv_script = '63' + push_public_key + 'ad670320a107b17568' + push_public_key + 'ac' + rpc_result = self.nodes[0].decodescript(cltv_script) assert_equal('OP_IF ' + public_key + ' OP_CHECKSIGVERIFY OP_ELSE 500000 OP_CHECKLOCKTIMEVERIFY OP_DROP OP_ENDIF ' + public_key + ' OP_CHECKSIG', rpc_result['asm']) + # CLTV script in P2WSH + cltv_script_hash = bytes_to_hex_str(sha256(hex_str_to_bytes(cltv_script))) + assert_equal('0 ' + cltv_script_hash, rpc_result['segwit']['asm']) + + # 7) P2PK scriptPubKey + # <pubkey> OP_CHECKSIG + rpc_result = self.nodes[0].decodescript(push_uncompressed_public_key + 'ac') + assert_equal(uncompressed_public_key + ' OP_CHECKSIG', rpc_result['asm']) + # uncompressed pubkeys are invalid for checksigs in segwit scripts. + # decodescript should not return a P2WPKH equivalent. + assert 'segwit' not in rpc_result + + # 8) multisig scriptPubKey with an uncompressed pubkey + # <m> <A pubkey> <B pubkey> <n> OP_CHECKMULTISIG + # just imagine that the pub keys used below are different. + # the purpose of this test is to check that a segwit script is not returned for bare multisig scripts + # with an uncompressed pubkey in them. + rpc_result = self.nodes[0].decodescript('52' + push_public_key + push_uncompressed_public_key +'52ae') + assert_equal('2 ' + public_key + ' ' + uncompressed_public_key + ' 2 OP_CHECKMULTISIG', rpc_result['asm']) + # uncompressed pubkeys are invalid for checksigs in segwit scripts. + # decodescript should not return a P2WPKH equivalent. + assert 'segwit' not in rpc_result + + # 9) P2WPKH scriptpubkey + # 0 <PubKeyHash> + rpc_result = self.nodes[0].decodescript('00' + push_public_key_hash) + assert_equal('0 ' + public_key_hash, rpc_result['asm']) + # segwit scripts do not work nested into each other. + # a nested segwit script should not be returned in the results. + assert 'segwit' not in rpc_result + + # 10) P2WSH scriptpubkey + # 0 <ScriptHash> + # even though this hash is of a P2PK script which is better used as bare P2WPKH, it should not matter + # for the purpose of this test. + rpc_result = self.nodes[0].decodescript('0020' + p2wsh_p2pk_script_hash) + assert_equal('0 ' + p2wsh_p2pk_script_hash, rpc_result['asm']) + # segwit scripts do not work nested into each other. + # a nested segwit script should not be returned in the results. + assert 'segwit' not in rpc_result def decoderawtransaction_asm_sighashtype(self): """Test decoding scripts via RPC command "decoderawtransaction". |