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Fix describe_transfer for multiple txes in a txset #7767

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merged 1 commit into from
Aug 2, 2021
Merged

Fix describe_transfer for multiple txes in a txset #7767

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41 changes: 32 additions & 9 deletions src/wallet/wallet_rpc_server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1292,13 +1292,20 @@ namespace tools
try
{
// gather info to ask the user
std::unordered_map<cryptonote::account_public_address, std::pair<std::string, uint64_t>> dests;
std::unordered_map<cryptonote::account_public_address, std::pair<std::string, uint64_t>> tx_dests;
std::unordered_map<cryptonote::account_public_address, std::pair<std::string, uint64_t>> all_dests;
int first_known_non_zero_change_index = -1;
res.summary.amount_in = 0;
res.summary.amount_out = 0;
res.summary.change_amount = 0;
res.summary.fee = 0;
for (size_t n = 0; n < tx_constructions.size(); ++n)
{
const tools::wallet2::tx_construction_data &cd = tx_constructions[n];
res.desc.push_back({0, 0, std::numeric_limits<uint32_t>::max(), 0, {}, "", 0, "", 0, 0, ""});
wallet_rpc::COMMAND_RPC_DESCRIBE_TRANSFER::transfer_description &desc = res.desc.back();
// Clear the recipients collection ready for this loop iteration
tx_dests.clear();

std::vector<cryptonote::tx_extra_field> tx_extra_fields;
bool has_encrypted_payment_id = false;
Expand Down Expand Up @@ -1337,17 +1344,17 @@ namespace tools
std::string address = cryptonote::get_account_address_as_str(m_wallet->nettype(), entry.is_subaddress, entry.addr);
if (has_encrypted_payment_id && !entry.is_subaddress && address != entry.original)
address = cryptonote::get_account_integrated_address_as_str(m_wallet->nettype(), entry.addr, payment_id8);
auto i = dests.find(entry.addr);
if (i == dests.end())
dests.insert(std::make_pair(entry.addr, std::make_pair(address, entry.amount)));
auto i = tx_dests.find(entry.addr);
if (i == tx_dests.end())
tx_dests.insert(std::make_pair(entry.addr, std::make_pair(address, entry.amount)));
else
i->second.second += entry.amount;
desc.amount_out += entry.amount;
}
if (cd.change_dts.amount > 0)
{
auto it = dests.find(cd.change_dts.addr);
if (it == dests.end())
auto it = tx_dests.find(cd.change_dts.addr);
if (it == tx_dests.end())
{
er.code = WALLET_RPC_ERROR_CODE_BAD_UNSIGNED_TX_DATA;
er.message = "Claimed change does not go to a paid address";
Expand All @@ -1374,29 +1381,45 @@ namespace tools
desc.change_amount += cd.change_dts.amount;
it->second.second -= cd.change_dts.amount;
if (it->second.second == 0)
dests.erase(cd.change_dts.addr);
tx_dests.erase(cd.change_dts.addr);
}

for (auto i = dests.begin(); i != dests.end(); )
for (auto i = tx_dests.begin(); i != tx_dests.end(); ++i)
{
if (i->second.second > 0)
{
desc.recipients.push_back({i->second.first, i->second.second});
auto it_in_all = all_dests.find(i->first);
if (it_in_all == all_dests.end())
all_dests.insert(std::make_pair(i->first, i->second));
else
it_in_all->second.second += i->second.second;
}
else
++desc.dummy_outputs;
++i;
}

if (desc.change_amount > 0)
{
const tools::wallet2::tx_construction_data &cd0 = tx_constructions[0];
desc.change_address = get_account_address_as_str(m_wallet->nettype(), cd0.subaddr_account > 0, cd0.change_dts.addr);
res.summary.change_address = desc.change_address;
}

desc.fee = desc.amount_in - desc.amount_out;
desc.unlock_time = cd.unlock_time;
desc.extra = epee::to_hex::string({cd.extra.data(), cd.extra.size()});

// Update summary items
res.summary.amount_in += desc.amount_in;
res.summary.amount_out += desc.amount_out;
res.summary.change_amount += desc.change_amount;
res.summary.fee += desc.fee;
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Those aren't initialized at the top. It might be they always are in practice, but it seems best to init them at the start of the function.

}
// Populate the summary recipients list
for (auto i = all_dests.begin(); i != all_dests.end(); ++i)
{
res.summary.recipients.push_back({i->second.first, i->second.second});
}
}
catch (const std::exception &e)
Expand Down
23 changes: 22 additions & 1 deletion src/wallet/wallet_rpc_server_commands_defs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@
// advance which version they will stop working with
// Don't go over 32767 for any of these
#define WALLET_RPC_VERSION_MAJOR 1
#define WALLET_RPC_VERSION_MINOR 22
#define WALLET_RPC_VERSION_MINOR 23
#define MAKE_WALLET_RPC_VERSION(major,minor) (((major)<<16)|(minor))
#define WALLET_RPC_VERSION MAKE_WALLET_RPC_VERSION(WALLET_RPC_VERSION_MAJOR, WALLET_RPC_VERSION_MINOR)
namespace tools
Expand Down Expand Up @@ -701,6 +701,25 @@ namespace wallet_rpc
END_KV_SERIALIZE_MAP()
};

struct txset_summary
{
uint64_t amount_in;
uint64_t amount_out;
std::list<recipient> recipients;
uint64_t change_amount;
std::string change_address;
uint64_t fee;

BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(amount_in)
KV_SERIALIZE(amount_out)
KV_SERIALIZE(recipients)
KV_SERIALIZE(change_amount)
KV_SERIALIZE(change_address)
KV_SERIALIZE(fee)
END_KV_SERIALIZE_MAP()
};

struct request_t
{
std::string unsigned_txset;
Expand All @@ -716,8 +735,10 @@ namespace wallet_rpc
struct response_t
{
std::list<transfer_description> desc;
struct txset_summary summary;

BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(summary)
KV_SERIALIZE(desc)
END_KV_SERIALIZE_MAP()
};
Expand Down