GUI cold signing

fix conflict

1 files changed, 279 insertions, 0 deletions

diff --git a/src/wallet/api/unsigned_transaction.cpp b/src/wallet/api/unsigned_transaction.cpp
new file mode 100644
index 000000000..84ec2d9d2
--- /dev/null
+++ b/src/wallet/api/unsigned_transaction.cpp
@@ -0,0 +1,279 @@
+// Copyright (c) 2014-2017, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
+
+#include "unsigned_transaction.h"
+#include "wallet.h"
+#include "common_defines.h"
+
+#include "cryptonote_core/cryptonote_format_utils.h"
+#include "cryptonote_core/cryptonote_basic_impl.h"
+#include "cryptonote_core/cryptonote_format_utils.h"
+
+#include <memory>
+#include <vector>
+#include <sstream>
+#include <boost/format.hpp>
+
+using namespace std;
+
+namespace Monero {
+
+UnsignedTransaction::~UnsignedTransaction() {}
+
+
+UnsignedTransactionImpl::UnsignedTransactionImpl(WalletImpl &wallet)
+    : m_wallet(wallet)
+{
+  m_status = Status_Ok;
+}
+
+UnsignedTransactionImpl::~UnsignedTransactionImpl()
+{
+    LOG_PRINT_L3("Unsigned tx deleted");
+}
+
+int UnsignedTransactionImpl::status() const
+{
+    return m_status;
+}
+
+string UnsignedTransactionImpl::errorString() const
+{
+    return m_errorString;
+}
+
+bool UnsignedTransactionImpl::sign(const std::string &signedFileName)
+{
+  if(m_wallet.watchOnly())
+  {
+     m_errorString = tr("This is a watch only wallet");
+     m_status = Status_Error;
+     return false;
+  }
+  std::vector<tools::wallet2::pending_tx> ptx;
+  try
+  {
+    bool r = m_wallet.m_wallet->sign_tx(m_unsigned_tx_set, signedFileName, ptx);
+    if (!r)
+    {
+      m_errorString = tr("Failed to sign transaction");
+      m_status = Status_Error;
+      return false;
+    }
+  }
+  catch (const std::exception &e)
+  {
+    m_errorString = string(tr("Failed to sign transaction")) + e.what();
+    m_status = Status_Error;
+    return false;
+  }
+  return true;
+}
+
+//----------------------------------------------------------------------------------------------------
+bool UnsignedTransactionImpl::checkLoadedTx(const std::function<size_t()> get_num_txes, const std::function<const tools::wallet2::tx_construction_data&(size_t)> &get_tx, const std::string &extra_message)
+{
+  // gather info to ask the user
+  uint64_t amount = 0, amount_to_dests = 0, change = 0;
+  size_t min_mixin = ~0;
+  std::unordered_map<std::string, uint64_t> dests;
+  const std::string wallet_address = m_wallet.m_wallet->get_account().get_public_address_str(m_wallet.m_wallet->testnet());
+  for (size_t n = 0; n < get_num_txes(); ++n)
+  {
+    const tools::wallet2::tx_construction_data &cd = get_tx(n);
+    for (size_t s = 0; s < cd.sources.size(); ++s)
+    {
+      amount += cd.sources[s].amount;
+      size_t mixin = cd.sources[s].outputs.size() - 1;
+      if (mixin < min_mixin)
+        min_mixin = mixin;
+    }
+    for (size_t d = 0; d < cd.splitted_dsts.size(); ++d)
+    {
+      const cryptonote::tx_destination_entry &entry = cd.splitted_dsts[d];
+      std::string address = get_account_address_as_str(m_wallet.m_wallet->testnet(), entry.addr);
+      std::unordered_map<std::string,uint64_t>::iterator i = dests.find(address);
+      if (i == dests.end())
+        dests.insert(std::make_pair(address, entry.amount));
+      else
+        i->second += entry.amount;
+      amount_to_dests += entry.amount;
+    }
+    if (cd.change_dts.amount > 0)
+    {
+      std::unordered_map<std::string, uint64_t>::iterator it = dests.find(get_account_address_as_str(m_wallet.m_wallet->testnet(), cd.change_dts.addr));
+      if (it == dests.end())
+      {
+        m_status = Status_Error;
+        m_errorString = tr("Claimed change does not go to a paid address");
+        return false;
+      }
+      if (it->second < cd.change_dts.amount)
+      {
+        m_status = Status_Error;
+        m_errorString = tr("Claimed change is larger than payment to the change address");
+        return  false;
+      }
+      if (memcmp(&cd.change_dts.addr, &get_tx(0).change_dts.addr, sizeof(cd.change_dts.addr)))
+      {
+        m_status = Status_Error;
+        m_errorString = tr("Change does to more than one address");
+        return false;
+      }
+      change += cd.change_dts.amount;
+      it->second -= cd.change_dts.amount;
+      if (it->second == 0)
+        dests.erase(get_account_address_as_str(m_wallet.m_wallet->testnet(), cd.change_dts.addr));
+    }
+  }
+  std::string dest_string;
+  for (std::unordered_map<std::string, uint64_t>::const_iterator i = dests.begin(); i != dests.end(); )
+  {
+    dest_string += (boost::format(tr("sending %s to %s")) % cryptonote::print_money(i->second) % i->first).str();
+    ++i;
+    if (i != dests.end())
+      dest_string += ", ";
+  }
+  if (dest_string.empty())
+    dest_string = tr("with no destinations");
+
+  std::string change_string;
+  if (change > 0)
+  {
+    std::string address = get_account_address_as_str(m_wallet.m_wallet->testnet(), get_tx(0).change_dts.addr);
+    change_string += (boost::format(tr("%s change to %s")) % cryptonote::print_money(change) % address).str();
+  }
+  else
+    change_string += tr("no change");
+  uint64_t fee = amount - amount_to_dests;
+  m_confirmationMessage = (boost::format(tr("Loaded %lu transactions, for %s, fee %s, %s, %s, with min mixin %lu. %s")) % (unsigned long)get_num_txes() % cryptonote::print_money(amount) % cryptonote::print_money(fee) % dest_string % change_string % (unsigned long)min_mixin % extra_message).str();
+  return true;
+}
+
+std::vector<uint64_t> UnsignedTransactionImpl::amount() const
+{
+    std::vector<uint64_t> result;
+    for (const auto &utx : m_unsigned_tx_set.txes)   {
+        for (const auto &unsigned_dest : utx.dests) {
+            result.push_back(unsigned_dest.amount);
+        }
+    }
+    return result;
+}
+
+std::vector<uint64_t> UnsignedTransactionImpl::fee() const
+{
+    std::vector<uint64_t> result;
+    for (const auto &utx : m_unsigned_tx_set.txes) {
+        uint64_t fee = 0;
+        for (const auto &i: utx.sources) fee += i.amount;
+        for (const auto &i: utx.splitted_dsts) fee -= i.amount;
+        result.push_back(fee);
+    }   
+    return result;
+} 
+
+std::vector<uint64_t> UnsignedTransactionImpl::mixin() const
+{
+    std::vector<uint64_t> result;    
+    for (const auto &utx: m_unsigned_tx_set.txes) {
+        size_t min_mixin = ~0;
+        // TODO: Is this loop needed or is sources[0] ?
+        for (size_t s = 0; s < utx.sources.size(); ++s) {
+            size_t mixin = utx.sources[s].outputs.size() - 1;
+                if (mixin < min_mixin)
+                    min_mixin = mixin;
+        }
+        result.push_back(min_mixin);
+    }
+    return result;
+}    
+
+uint64_t UnsignedTransactionImpl::txCount() const
+{
+    return m_unsigned_tx_set.txes.size();
+}
+
+std::vector<std::string> UnsignedTransactionImpl::paymentId() const 
+{
+    std::vector<string> result;
+    for (const auto &utx: m_unsigned_tx_set.txes) {     
+        crypto::hash payment_id = cryptonote::null_hash;
+        cryptonote::tx_extra_nonce extra_nonce;
+        std::vector<cryptonote::tx_extra_field> tx_extra_fields;
+        cryptonote::parse_tx_extra(utx.extra, tx_extra_fields);
+        if (cryptonote::find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
+        {
+          crypto::hash8 payment_id8 = cryptonote::null_hash8;
+          if(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
+          {
+              // We can't decrypt short pid without recipient key.
+              memcpy(payment_id.data, payment_id8.data, 8);
+          }
+          else if (!cryptonote::get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
+          {
+            payment_id = cryptonote::null_hash;
+          }      
+        }
+        if(payment_id != cryptonote::null_hash)
+            result.push_back(epee::string_tools::pod_to_hex(payment_id));
+        else
+            result.push_back("");
+    }
+    return result;
+}
+
+std::vector<std::string> UnsignedTransactionImpl::recipientAddress() const 
+{
+    // TODO: return integrated address if short payment ID exists
+    std::vector<string> result;
+    for (const auto &utx: m_unsigned_tx_set.txes) {
+        result.push_back(cryptonote::get_account_address_as_str(m_wallet.m_wallet->testnet(), utx.dests[0].addr));
+    }
+    return result;
+}
+
+uint64_t UnsignedTransactionImpl::minMixinCount() const
+{    
+    uint64_t min_mixin = ~0;  
+    for (const auto &utx: m_unsigned_tx_set.txes) {
+        for (size_t s = 0; s < utx.sources.size(); ++s) {
+            size_t mixin = utx.sources[s].outputs.size() - 1;
+                if (mixin < min_mixin)
+                    min_mixin = mixin;
+        }
+    }
+    return min_mixin;
+}
+
+} // namespace
+
+namespace Bitmonero = Monero;
+