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track double spending in the txpool

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Transactions in the txpool are marked when another transaction
is seen double spending one or more of its inputs.
This is then exposed wherever appropriate.

Note that being marked with this "double spend seen" flag does
NOT mean this transaction IS a double spend and will never be
mined: it just means that the network has seen at least another
transaction spending at least one of the same inputs, so care
should be taken to wait for a few confirmations before acting
upon that transaction (ie, mostly of use for merchants wanting
to accept unconfirmed transactions).
This commit is contained in:
moneromooo-monero
2017-09-22 13:57:20 +01:00
parent 3dd31d33fa
commit ccf53a566c
16 changed files with 216 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/simplewallet/simplewallet.cpp
+12 -7
View File
@@ -4415,15 +4415,18 @@ bool simple_wallet::show_transfers(const std::vector<std::string> &args_)
try
{
m_wallet->update_pool_state();
std::list<std::pair<crypto::hash, tools::wallet2::payment_details>> payments;
std::list<std::pair<crypto::hash, tools::wallet2::pool_payment_details>> payments;
m_wallet->get_unconfirmed_payments(payments, m_current_subaddress_account, subaddr_indices);
for (std::list<std::pair<crypto::hash, tools::wallet2::payment_details>>::const_iterator i = payments.begin(); i != payments.end(); ++i) {
const tools::wallet2::payment_details &pd = i->second;
for (std::list<std::pair<crypto::hash, tools::wallet2::pool_payment_details>>::const_iterator i = payments.begin(); i != payments.end(); ++i) {
const tools::wallet2::payment_details &pd = i->second.m_pd;
std::string payment_id = string_tools::pod_to_hex(i->first);
if (payment_id.substr(16).find_first_not_of('0') == std::string::npos)
payment_id = payment_id.substr(0,16);
std::string note = m_wallet->get_tx_note(pd.m_tx_hash);
message_writer() << (boost::format("%8.8s %6.6s %16.16s %20.20s %s %s %d %s %s") % "pool" % "in" % get_human_readable_timestamp(pd.m_timestamp) % print_money(pd.m_amount) % string_tools::pod_to_hex(pd.m_tx_hash) % payment_id % pd.m_subaddr_index.minor % "-" % note).str();
std::string double_spend_note;
if (i->second.m_double_spend_seen)
double_spend_note = tr("[Double spend seen on the network: this transaction may or may not end up being mined] ");
message_writer() << (boost::format("%8.8s %6.6s %16.16s %20.20s %s %s %d %s %s%s") % "pool" % "in" % get_human_readable_timestamp(pd.m_timestamp) % print_money(pd.m_amount) % string_tools::pod_to_hex(pd.m_tx_hash) % payment_id % pd.m_subaddr_index.minor % "-" % note % double_spend_note).str();
}
}
catch (const std::exception& e)
@@ -5439,10 +5442,10 @@ bool simple_wallet::show_transfer(const std::vector<std::string> &args)
try
{
m_wallet->update_pool_state();
std::list<std::pair<crypto::hash, tools::wallet2::payment_details>> pool_payments;
std::list<std::pair<crypto::hash, tools::wallet2::pool_payment_details>> pool_payments;
m_wallet->get_unconfirmed_payments(pool_payments);
for (std::list<std::pair<crypto::hash, tools::wallet2::payment_details>>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) {
const tools::wallet2::payment_details &pd = i->second;
for (std::list<std::pair<crypto::hash, tools::wallet2::pool_payment_details>>::const_iterator i = pool_payments.begin(); i != pool_payments.end(); ++i) {
const tools::wallet2::payment_details &pd = i->second.m_pd;
if (pd.m_tx_hash == txid)
{
std::string payment_id = string_tools::pod_to_hex(i->first);
@@ -5455,6 +5458,8 @@ bool simple_wallet::show_transfer(const std::vector<std::string> &args)
success_msg_writer() << "Payment ID: " << payment_id;
success_msg_writer() << "Address index: " << pd.m_subaddr_index.minor;
success_msg_writer() << "Note: " << m_wallet->get_tx_note(txid);
if (i->second.m_double_spend_seen)
success_msg_writer() << tr("Double spend seen on the network: this transaction may or may not end up being mined");
return true;
}
}