From deef8b445676d641cdc88c256205f2846df5e524 Mon Sep 17 00:00:00 2001
From: satyakoneru <satyakoneru.iiith@gmail.com>
Date: Mon, 17 Feb 2020 13:04:22 +0000
Subject: [PATCH] SON261 - Deposit transfer ( user address -> PW ) and
 Withdrawal transfer ( PW -> user address ) for m-of-n multisig

---
 .../sidechain_net_handler.hpp                 |   1 +
 .../sidechain_net_handler_bitcoin.hpp         |   4 +
 .../sidechain_net_handler.cpp                 |   2 +
 .../sidechain_net_handler_bitcoin.cpp         | 121 ++++++++++++++++++
 4 files changed, 128 insertions(+)

diff --git a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler.hpp b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler.hpp
index da6321a9..8c2eb87e 100644
--- a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler.hpp
+++ b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler.hpp
@@ -31,6 +31,7 @@ protected:
     virtual std::string transfer( const std::string& from, const std::string& to, const uint64_t amount ) = 0;
     virtual std::string sign_transaction( const std::string& transaction ) = 0;
     virtual std::string send_transaction( const std::string& transaction ) = 0;
+    virtual std::string transfer_deposit_to_primary_wallet (const sidechain_event_data& sed) = 0;
 
     virtual void handle_event( const std::string& event_data ) = 0;
 
diff --git a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
index 803b24de..12c73006 100644
--- a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
+++ b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
@@ -21,6 +21,9 @@ public:
    void send_btc_tx( const std::string& tx_hex );
    std::string add_multisig_address( const std::vector<std::string> public_keys );
    bool connection_is_not_defined() const;
+   std::string create_raw_transaction(const sidechain_event_data& sed, const std::string& pw_address);
+   std::string sign_raw_transaction_with_wallet(const std::string& tx_hash);
+   std::string sign_raw_transaction_with_privkey(const std::string& tx_hash, const std::string& private_key);
 
 private:
 
@@ -68,6 +71,7 @@ public:
    std::string transfer( const std::string& from, const std::string& to, const uint64_t amount );
    std::string sign_transaction( const std::string& transaction );
    std::string send_transaction( const std::string& transaction );
+   std::string transfer_deposit_to_primary_wallet (const sidechain_event_data& sed);
 
 private:
    std::string ip;
diff --git a/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp b/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
index ac50974c..d18ddd99 100644
--- a/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
+++ b/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
@@ -55,6 +55,8 @@ void sidechain_net_handler::sidechain_event_data_received(const sidechain_event_
 
    const chain::global_property_object& gpo = database.get_global_properties();
 
+   transfer_deposit_to_primary_wallet(sed);
+
    son_wallet_transfer_create_operation op;
    op.payer = gpo.parameters.get_son_btc_account_id();
    op.timestamp = sed.timestamp;
diff --git a/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp b/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
index cdd3611e..daad3f6e 100644
--- a/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
+++ b/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
@@ -110,6 +110,8 @@ void bitcoin_rpc_client::send_btc_tx( const std::string& tx_hex )
    const auto body = std::string("{\"jsonrpc\": \"1.0\", \"id\":\"send_tx\", \"method\": \"sendrawtransaction\", \"params\": [") +
                      std::string("\"") + tx_hex + std::string("\"") + std::string("] }");
 
+   ilog(body);
+
    const auto reply = send_post_request( body );
 
    if( reply.body.empty() )
@@ -168,6 +170,79 @@ std::string bitcoin_rpc_client::add_multisig_address( const std::vector<std::str
    return "";
 }
 
+std::string bitcoin_rpc_client::create_raw_transaction(const sidechain_event_data& sed, const std::string& pw_address)
+{
+   std::string txid = sed.sidechain_transaction_id;
+   std::string suid = sed.sidechain_uid;
+   std::string nvout = suid.substr(suid.find_last_of("-")+1);
+   int64_t deposit_amount = sed.sidechain_amount;
+   deposit_amount -= 1000; // Deduct minimum relay fee
+   double transfer_amount = (double)deposit_amount/100000000.0;
+
+   std::string body = std::string("{\"jsonrpc\": \"1.0\", \"id\":\"createrawtransaction\", \"method\": \"createrawtransaction\", \"params\": [");
+   std::string params = "";
+   std::string input = std::string("[{\"txid\":\"") + txid + std::string("\",\"vout\":")+ nvout +std::string("}]");
+   std::string output = std::string("[{\"") + pw_address + std::string("\":") + std::to_string(transfer_amount) + std::string("}]");
+   params = params + input + std::string(",") + output;
+   body = body + params + std::string("]}");
+
+   ilog(body);
+
+   const auto reply = send_post_request( body );
+
+   if( reply.body.empty() )
+      return "";
+
+   std::string reply_str( reply.body.begin(), reply.body.end() );
+
+   std::stringstream ss(reply_str);
+   boost::property_tree::ptree json;
+   boost::property_tree::read_json( ss, json );
+
+   if( reply.status == 200 ) {
+      return reply_str;
+   }
+
+   if( json.count( "error" ) && !json.get_child( "error" ).empty() ) {
+      wlog( "BTC createrawtransaction failed! Reply: ${msg}", ("msg", reply_str) );
+   }
+   return "";
+}
+
+std::string bitcoin_rpc_client::sign_raw_transaction_with_wallet(const std::string& tx_hash)
+{
+   std::string body = std::string("{\"jsonrpc\": \"1.0\", \"id\":\"signrawtransactionwithwallet\", \"method\": \"signrawtransactionwithwallet\", \"params\": [");
+   std::string params = "\"" + tx_hash + "\"";
+   body = body + params + std::string("]}");
+
+   ilog(body);
+
+   const auto reply = send_post_request( body );
+
+   if( reply.body.empty() )
+      return "";
+
+   std::string reply_str( reply.body.begin(), reply.body.end() );
+
+   std::stringstream ss(reply_str);
+   boost::property_tree::ptree json;
+   boost::property_tree::read_json( ss, json );
+
+   if( reply.status == 200 ) {
+      return reply_str;
+   }
+
+   if( json.count( "error" ) && !json.get_child( "error" ).empty() ) {
+      wlog( "BTC sign_raw_transaction_with_wallet failed! Reply: ${msg}", ("msg", reply_str) );
+   }
+   return "";
+}
+
+std::string bitcoin_rpc_client::sign_raw_transaction_with_privkey(const std::string& tx_hash, const std::string& private_key)
+{
+   return "";
+}
+
 bool bitcoin_rpc_client::connection_is_not_defined() const
 {
    return ip.empty() || rpc_port == 0 || user.empty() || password.empty();
@@ -333,6 +408,52 @@ std::string sidechain_net_handler_bitcoin::send_transaction( const std::string&
    return "";
 }
 
+std::string sidechain_net_handler_bitcoin::transfer_deposit_to_primary_wallet ( const sidechain_event_data& sed )
+{
+   const auto& idx = database.get_index_type<son_wallet_index>().indices().get<by_id>();
+   auto obj = idx.rbegin();
+   if (obj == idx.rend() || obj->addresses.find(sidechain_type::bitcoin) == obj->addresses.end()) {
+       return "";
+   }
+
+   std::string pw_address_json = obj->addresses.find(sidechain_type::bitcoin)->second;
+
+   std::stringstream ss(pw_address_json);
+   boost::property_tree::ptree json;
+   boost::property_tree::read_json( ss, json );
+
+   std::string pw_address = json.get<std::string>("address");
+
+   std::string reply_str = bitcoin_client->create_raw_transaction(sed, pw_address);
+   ilog(reply_str);
+
+   std::stringstream ss_utx(reply_str);
+   boost::property_tree::ptree pt;
+   boost::property_tree::read_json( ss_utx, pt );
+
+   if( !(pt.count( "error" ) && pt.get_child( "error" ).empty()) || !pt.count("result") ) {
+      return "";
+   }
+
+   std::string unsigned_tx_hex = pt.get<std::string>("result");
+
+   reply_str = bitcoin_client->sign_raw_transaction_with_wallet(unsigned_tx_hex);
+   ilog(reply_str);
+   std::stringstream ss_stx(reply_str);
+   boost::property_tree::ptree stx_json;
+   boost::property_tree::read_json( ss_stx, stx_json );
+
+   if( !(stx_json.count( "error" ) && stx_json.get_child( "error" ).empty()) || !stx_json.count("result") || !stx_json.get_child("result").count("hex") ) {
+      return "";
+   }
+
+   std::string signed_tx_hex = stx_json.get<std::string>("result.hex");
+
+   bitcoin_client->send_btc_tx(signed_tx_hex);
+
+   return reply_str;
+}
+
 void sidechain_net_handler_bitcoin::handle_event( const std::string& event_data ) {
    ilog("peerplays sidechain plugin:  sidechain_net_handler_bitcoin::handle_event");
    ilog("                             event_data: ${event_data}", ("event_data", event_data));