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Add send_transaction_standalone function

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This commit is contained in:
satyakoneru 2020-04-14 17:49:56 +00:00
parent 73e0673199
commit 4c3da2015a
3 changed files with 53 additions and 4 deletions
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10
libraries/plugins/peerplays_sidechain/bitcoin/sign_bitcoin_transaction.cpp
View file

@ -128,4 +128,14 @@ std::vector<std::vector<bytes>> sort_sigs( const bitcoin_transaction& tx, const
return new_stacks;
}
void add_signatures_to_transaction( bitcoin_transaction &tx, std::vector<std::vector<bytes>> &signature_set )
{
for (unsigned int i = 0; i < signature_set.size(); i++) {
std::vector<bytes> signatures = signature_set[i];
FC_ASSERT(signatures.size() == tx.vin.size(), "Invalid signatures number");
for (unsigned int i = 0; i < tx.vin.size(); i++)
tx.vin[i].scriptWitness.push_back(signatures[i]);
}
}
} } }

2
libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/bitcoin/sign_bitcoin_transaction.hpp
View file

@ -26,4 +26,6 @@ bool verify_sig( const bytes& sig, const bytes& pubkey, const bytes& msg, const
std::vector<std::vector<bytes>> sort_sigs( const bitcoin_transaction& tx, const std::vector<bytes>& redeem_scripts,
const std::vector<uint64_t>& amounts, const secp256k1_context_t* context );
void add_signatures_to_transaction( bitcoin_transaction &tx, std::vector<std::vector<bytes>> &signature_set );
} } }

45
libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
View file

@ -1418,17 +1418,17 @@ std::string sidechain_net_handler_bitcoin::send_transaction(const sidechain_tran
}
}
std::vector<std::vector<unsigned char>> read_byte_arrays_from_string(const std::string &string_buf)
std::vector<bitcoin::bytes> read_byte_arrays_from_string(const std::string &string_buf)
{
std::stringstream ss(string_buf);
boost::property_tree::ptree json;
boost::property_tree::read_json(ss, json);
std::vector<bytes> data;
std::vector<bitcoin::bytes> data;
for(auto &v: json)
{
std::string hex = v.second.data();
bytes item;
bitcoin::bytes item;
item.resize(hex.size() / 2);
fc::from_hex(hex, (char*)&item[0], item.size());
data.push_back(item);
@ -1760,7 +1760,44 @@ std::string sidechain_net_handler_bitcoin::send_transaction_psbt(const sidechain
}
std::string sidechain_net_handler_bitcoin::send_transaction_standalone(const sidechain_transaction_object &sto) {
return bitcoin_client->sendrawtransaction(sto.transaction);
using namespace bitcoin;
std::vector<uint64_t> in_amounts;
std::string tx_hex;
read_tx_data_from_string(sto.transaction, tx_hex, in_amounts);
accounts_keys son_pubkeys;
for (auto& son: sto.signers) {
std::string pub_key = son.sidechain_public_keys.at(sidechain_type::bitcoin);
son_pubkeys[son.son_id] = create_public_key_data( parse_hex(pub_key) );
}
uint32_t nrequired = sto.signers.size() * 2 / 3 + 1;
btc_multisig_segwit_address pw_address(nrequired, son_pubkeys);
bitcoin_transaction tx = unpack(parse_hex(tx_hex));
bitcoin::bytes rscript = pw_address.get_redeem_script();
std::vector<bitcoin::bytes> redeem_scripts(tx.vin.size(), rscript);
vector<vector<bitcoin::bytes>> signatures;
for (unsigned idx = 0; idx < sto.signatures.size(); ++idx) {
if(!sto.signatures[idx].second.empty())
signatures.push_back(read_byte_arrays_from_string(sto.signatures[idx].second));
}
add_signatures_to_transaction(tx, signatures);
sign_witness_transaction_finalize(tx, redeem_scripts);
std::string final_tx_hex = fc::to_hex( pack( tx ) );
std::string res = bitcoin_client->sendrawtransaction(final_tx_hex);
wlog("skoneru: send_transaction_standalone: ${tx}, [${res}]", ("tx", final_tx_hex)("res", res));
return res;
}
void sidechain_net_handler_bitcoin::handle_event(const std::string &event_data) {