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indentation corrected

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master
moneroexamples 3 years ago
parent cb9094e422
commit 3a78681964
1 changed files with 316 additions and 316 deletions
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src/page.h
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@ -2295,427 +2295,427 @@ show_my_outputs(string tx_hash_str,
if (enable_mixin_guess) {
bool show_key_images {false};
bool show_key_images {false};
mstch::array inputs;
mstch::array inputs;
vector<txin_to_key> input_key_imgs = xmreg::get_key_images(tx);
vector<txin_to_key> input_key_imgs = xmreg::get_key_images(tx);
// to hold sum of xmr in matched mixins, those that
// perfectly match mixin public key with outputs in mixn_tx.
uint64_t sum_mixin_xmr {0};
// to hold sum of xmr in matched mixins, those that
// perfectly match mixin public key with outputs in mixn_tx.
uint64_t sum_mixin_xmr {0};
// this is used for the final check. we assument that number of
// parefct matches must be equal to number of inputs in a tx.
uint64_t no_of_matched_mixins {0};
// this is used for the final check. we assument that number of
// parefct matches must be equal to number of inputs in a tx.
uint64_t no_of_matched_mixins {0};
// Hold all possible mixins that we found. This is only used so that
// we get number of all posibilities, and their total xmr amount
// (useful for unit testing)
// public_key , amount
std::vector<std::pair<crypto::public_key, uint64_t>> all_possible_mixins;
// Hold all possible mixins that we found. This is only used so that
// we get number of all posibilities, and their total xmr amount
// (useful for unit testing)
// public_key , amount
std::vector<std::pair<crypto::public_key, uint64_t>> all_possible_mixins;
for (const txin_to_key& in_key: input_key_imgs)
{
// get absolute offsets of mixins
std::vector<uint64_t> absolute_offsets
= cryptonote::relative_output_offsets_to_absolute(
in_key.key_offsets);
// get public keys of outputs used in the mixins that match to the offests
std::vector<cryptonote::output_data_t> mixin_outputs;
try
for (const txin_to_key& in_key: input_key_imgs)
{
// before proceeding with geting the outputs based on
// the amount and absolute offset
// check how many outputs there are for that amount
// go to next input if a too large offset was found
if (are_absolute_offsets_good(absolute_offsets, in_key) == false)
continue;
// get absolute offsets of mixins
std::vector<uint64_t> absolute_offsets
= cryptonote::relative_output_offsets_to_absolute(
in_key.key_offsets);
//core_storage->get_db().get_output_key(in_key.amount,
//absolute_offsets,
//mixin_outputs);
// get public keys of outputs used in the mixins that match to the offests
std::vector<cryptonote::output_data_t> mixin_outputs;
get_output_key<BlockchainDB>(in_key.amount,
absolute_offsets,
mixin_outputs);
}
catch (const OUTPUT_DNE& e)
{
cerr << "get_output_keys: " << e.what() << endl;
continue;
}
inputs.push_back(mstch::map{
{"key_image" , pod_to_hex(in_key.k_image)},
{"key_image_amount", xmreg::xmr_amount_to_str(in_key.amount)},
make_pair(string("mixins"), mstch::array{})
});
try
{
// before proceeding with geting the outputs based on
// the amount and absolute offset
// check how many outputs there are for that amount
// go to next input if a too large offset was found
if (are_absolute_offsets_good(absolute_offsets, in_key) == false)
continue;
mstch::array& mixins = boost::get<mstch::array>(
boost::get<mstch::map>(inputs.back())["mixins"]
);
//core_storage->get_db().get_output_key(in_key.amount,
//absolute_offsets,
//mixin_outputs);
// to store our mixins found for the given key image
vector<map<string, string>> our_mixins_found;
get_output_key<BlockchainDB>(in_key.amount,
absolute_offsets,
mixin_outputs);
}
catch (const OUTPUT_DNE& e)
{
cerr << "get_output_keys: " << e.what() << endl;
continue;
}
// mixin counter
size_t count = 0;
inputs.push_back(mstch::map{
{"key_image" , pod_to_hex(in_key.k_image)},
{"key_image_amount", xmreg::xmr_amount_to_str(in_key.amount)},
make_pair(string("mixins"), mstch::array{})
});
// there can be more than one our output used for mixin in a single
// input. For example, if two outputs are matched (marked by *) in html,
// one of them will be our real spending, and second will be used as a fake
// one. ideally, to determine which is which, spendkey is required.
// obvisouly we dont have it here, so we need to pick one in other way.
// for now I will just pick the first one we find, and threat it as the
// real spending output. The no_of_output_matches_found variable
// is used for this purporse.
// testnet tx 430b070e213659a864ec82d674fddb5ccf7073cae231b019ba1ebb4bfdc07a15
// and testnet wallet details provided earier for spend key,
// demonstrate this. this txs has one input that uses two of our ouputs.
// without spent key, its imposible to know which one is real spendking
// and which one is fake.
size_t no_of_output_matches_found {0};
// for each found output public key check if its ours or not
for (const uint64_t& abs_offset: absolute_offsets)
{
mstch::array& mixins = boost::get<mstch::array>(
boost::get<mstch::map>(inputs.back())["mixins"]
);
// get basic information about mixn's output
cryptonote::output_data_t output_data = mixin_outputs.at(count);
// to store our mixins found for the given key image
vector<map<string, string>> our_mixins_found;
// mixin counter
size_t count = 0;
// there can be more than one our output used for mixin in a single
// input. For example, if two outputs are matched (marked by *) in html,
// one of them will be our real spending, and second will be used as a fake
// one. ideally, to determine which is which, spendkey is required.
// obvisouly we dont have it here, so we need to pick one in other way.
// for now I will just pick the first one we find, and threat it as the
// real spending output. The no_of_output_matches_found variable
// is used for this purporse.
// testnet tx 430b070e213659a864ec82d674fddb5ccf7073cae231b019ba1ebb4bfdc07a15
// and testnet wallet details provided earier for spend key,
// demonstrate this. this txs has one input that uses two of our ouputs.
// without spent key, its imposible to know which one is real spendking
// and which one is fake.
size_t no_of_output_matches_found {0};
// for each found output public key check if its ours or not
for (const uint64_t& abs_offset: absolute_offsets)
{
tx_out_index tx_out_idx;
// get basic information about mixn's output
cryptonote::output_data_t output_data = mixin_outputs.at(count);
try
{
// get pair pair<crypto::hash, uint64_t> where first is tx hash
// and second is local index of the output i in that tx
tx_out_idx = core_storage->get_db()
.get_output_tx_and_index(in_key.amount, abs_offset);
}
catch (const OUTPUT_DNE& e)
{
tx_out_index tx_out_idx;
string out_msg = fmt::format(
"Output with amount {:d} and index {:d} does not exist!",
in_key.amount, abs_offset);
try
{
// get pair pair<crypto::hash, uint64_t> where first is tx hash
// and second is local index of the output i in that tx
tx_out_idx = core_storage->get_db()
.get_output_tx_and_index(in_key.amount, abs_offset);
}
catch (const OUTPUT_DNE& e)
{
cerr << out_msg << '\n';
string out_msg = fmt::format(
"Output with amount {:d} and index {:d} does not exist!",
in_key.amount, abs_offset);
break;
}
cerr << out_msg << '\n';
string out_pub_key_str = pod_to_hex(output_data.pubkey);
break;
}
//cout << "out_pub_key_str: " << out_pub_key_str << endl;
string out_pub_key_str = pod_to_hex(output_data.pubkey);
//cout << "out_pub_key_str: " << out_pub_key_str << endl;
// get mixin transaction
transaction mixin_tx;
if (!mcore->get_tx(tx_out_idx.first, mixin_tx))
{
cerr << "Cant get tx: " << tx_out_idx.first << endl;
break;
}
// get mixin transaction
transaction mixin_tx;
string mixin_tx_hash_str = pod_to_hex(tx_out_idx.first);
if (!mcore->get_tx(tx_out_idx.first, mixin_tx))
{
cerr << "Cant get tx: " << tx_out_idx.first << endl;
break;
}
mixins.push_back(mstch::map{
{"mixin_pub_key" , out_pub_key_str},
make_pair<string, mstch::array>("mixin_outputs"
, mstch::array{}),
{"has_mixin_outputs" , false}});
string mixin_tx_hash_str = pod_to_hex(tx_out_idx.first);
mstch::array& mixin_outputs = boost::get<mstch::array>(
boost::get<mstch::map>(mixins.back())["mixin_outputs"]);
mixins.push_back(mstch::map{
{"mixin_pub_key" , out_pub_key_str},
make_pair<string, mstch::array>("mixin_outputs"
, mstch::array{}),
{"has_mixin_outputs" , false}});
mstch::node& has_mixin_outputs
= boost::get<mstch::map>(mixins.back())["has_mixin_outputs"];
mstch::array& mixin_outputs = boost::get<mstch::array>(
boost::get<mstch::map>(mixins.back())["mixin_outputs"]);
bool found_something {false};
mstch::node& has_mixin_outputs
= boost::get<mstch::map>(mixins.back())["has_mixin_outputs"];
public_key mixin_tx_pub_key
= xmreg::get_tx_pub_key_from_received_outs(mixin_tx);
bool found_something {false};
std::vector<public_key> mixin_additional_tx_pub_keys
= cryptonote::get_additional_tx_pub_keys_from_extra(mixin_tx);
public_key mixin_tx_pub_key
= xmreg::get_tx_pub_key_from_received_outs(mixin_tx);
string mixin_tx_pub_key_str = pod_to_hex(mixin_tx_pub_key);
std::vector<public_key> mixin_additional_tx_pub_keys
= cryptonote::get_additional_tx_pub_keys_from_extra(mixin_tx);
// public transaction key is combined with our viewkey
// to create, so called, derived key.
key_derivation derivation;
string mixin_tx_pub_key_str = pod_to_hex(mixin_tx_pub_key);
std::vector<key_derivation> additional_derivations(
mixin_additional_tx_pub_keys.size());
// public transaction key is combined with our viewkey
// to create, so called, derived key.
key_derivation derivation;
if (!generate_key_derivation(mixin_tx_pub_key,
prv_view_key, derivation))
{
cerr << "Cant get derived key for: " << "\n"
<< "pub_tx_key: " << mixin_tx_pub_key << " and "
<< "prv_view_key" << prv_view_key << endl;
std::vector<key_derivation> additional_derivations(
mixin_additional_tx_pub_keys.size());
continue;
}
for (size_t i = 0; i < mixin_additional_tx_pub_keys.size(); ++i)
{
if (!generate_key_derivation(mixin_additional_tx_pub_keys[i],
prv_view_key,
additional_derivations[i]))
if (!generate_key_derivation(mixin_tx_pub_key,
prv_view_key, derivation))
{
cerr << "Cant get derived key for: " << "\n"
<< "pub_tx_key: " << mixin_additional_tx_pub_keys[i]
<< " and prv_view_key" << prv_view_key << endl;
<< "pub_tx_key: " << mixin_tx_pub_key << " and "
<< "prv_view_key" << prv_view_key << endl;
continue;
}
}
// <public_key , amount , out idx>
vector<tuple<txout_to_key, uint64_t, uint64_t>> output_pub_keys;
output_pub_keys = xmreg::get_ouputs_tuple(mixin_tx);
for (size_t i = 0; i < mixin_additional_tx_pub_keys.size(); ++i)
{
if (!generate_key_derivation(mixin_additional_tx_pub_keys[i],
prv_view_key,
additional_derivations[i]))
{
cerr << "Cant get derived key for: " << "\n"
<< "pub_tx_key: " << mixin_additional_tx_pub_keys[i]
<< " and prv_view_key" << prv_view_key << endl;
mixin_outputs.push_back(mstch::map{
{"mix_tx_hash" , mixin_tx_hash_str},
{"mix_tx_pub_key" , mixin_tx_pub_key_str},
make_pair<string, mstch::array>("found_outputs"
, mstch::array{}),
{"has_found_outputs", false}
});
continue;
}
}
mstch::array& found_outputs = boost::get<mstch::array>(
boost::get<mstch::map>(
mixin_outputs.back())["found_outputs"]
);
// <public_key , amount , out idx>
vector<tuple<txout_to_key, uint64_t, uint64_t>> output_pub_keys;
mstch::node& has_found_outputs
= boost::get<mstch::map>(
mixin_outputs.back())["has_found_outputs"];
output_pub_keys = xmreg::get_ouputs_tuple(mixin_tx);
uint64_t ringct_amount {0};
mixin_outputs.push_back(mstch::map{
{"mix_tx_hash" , mixin_tx_hash_str},
{"mix_tx_pub_key" , mixin_tx_pub_key_str},
make_pair<string, mstch::array>("found_outputs"
, mstch::array{}),
{"has_found_outputs", false}
});
// for each output in mixin tx, find the one from key_image
// and check if its ours.
for (const auto& mix_out: output_pub_keys)
{
mstch::array& found_outputs = boost::get<mstch::array>(
boost::get<mstch::map>(
mixin_outputs.back())["found_outputs"]
);
txout_to_key const& txout_k = std::get<0>(mix_out);
uint64_t amount = std::get<1>(mix_out);
uint64_t output_idx_in_tx = std::get<2>(mix_out);
mstch::node& has_found_outputs
= boost::get<mstch::map>(
mixin_outputs.back())["has_found_outputs"];
//cout << " - " << pod_to_hex(txout_k.key) << endl;
uint64_t ringct_amount {0};
// // analyze only those output keys
// // that were used in mixins
// if (txout_k.key != output_data.pubkey)
// {
// continue;
// }
// for each output in mixin tx, find the one from key_image
// and check if its ours.
for (const auto& mix_out: output_pub_keys)
{
// get the tx output public key
// that normally would be generated for us,
// if someone had sent us some xmr.
public_key tx_pubkey_generated;
txout_to_key const& txout_k = std::get<0>(mix_out);
uint64_t amount = std::get<1>(mix_out);
uint64_t output_idx_in_tx = std::get<2>(mix_out);
derive_public_key(derivation,
output_idx_in_tx,
address_info.address.m_spend_public_key,
tx_pubkey_generated);
//cout << " - " << pod_to_hex(txout_k.key) << endl;
// check if generated public key matches the current output's key
bool mine_output = (txout_k.key == tx_pubkey_generated);
// // analyze only those output keys
// // that were used in mixins
// if (txout_k.key != output_data.pubkey)
// {
// continue;
// }
bool with_additional = false;
// get the tx output public key
// that normally would be generated for us,
// if someone had sent us some xmr.
public_key tx_pubkey_generated;
if (!mine_output && mixin_additional_tx_pub_keys.size()
== output_pub_keys.size())
{
derive_public_key(additional_derivations[output_idx_in_tx],
derive_public_key(derivation,
output_idx_in_tx,
address_info.address.m_spend_public_key,
tx_pubkey_generated);
mine_output = (txout_k.key == tx_pubkey_generated);
// check if generated public key matches the current output's key
bool mine_output = (txout_k.key == tx_pubkey_generated);
with_additional = true;
}
bool with_additional = false;
if (!mine_output && mixin_additional_tx_pub_keys.size()
== output_pub_keys.size())
{
derive_public_key(additional_derivations[output_idx_in_tx],
output_idx_in_tx,
address_info.address.m_spend_public_key,
tx_pubkey_generated);
if (mine_output && mixin_tx.version == 2)
{
// cointbase txs have amounts in plain sight.
// so use amount from ringct, only for non-coinbase txs
if (!is_coinbase(mixin_tx))
mine_output = (txout_k.key == tx_pubkey_generated);
with_additional = true;
}
if (mine_output && mixin_tx.version == 2)
{
// initialize with regular amount
uint64_t rct_amount = amount;
// cointbase txs have amounts in plain sight.
// so use amount from ringct, only for non-coinbase txs
if (!is_coinbase(mixin_tx))
{
// initialize with regular amount
uint64_t rct_amount = amount;
bool r;
bool r;
r = decode_ringct(
mixin_tx.rct_signatures,
with_additional
? additional_derivations[output_idx_in_tx] : derivation,
output_idx_in_tx,
mixin_tx.rct_signatures.ecdhInfo[output_idx_in_tx].mask,
rct_amount);
r = decode_ringct(
mixin_tx.rct_signatures,
with_additional
? additional_derivations[output_idx_in_tx] : derivation,
output_idx_in_tx,
mixin_tx.rct_signatures.ecdhInfo[output_idx_in_tx].mask,
rct_amount);
if (!r)
cerr << "show_my_outputs: key images: "
"Cant decode RingCT!\n";
if (!r)
cerr << "show_my_outputs: key images: "
"Cant decode RingCT!\n";
amount = rct_amount;
amount = rct_amount;
} // if (mine_output && mixin_tx.version == 2)
}
} // if (mine_output && mixin_tx.version == 2)
}
// makre only
bool output_match = (txout_k.key == output_data.pubkey);
// mark only first output_match as the "real" one
// due to luck of better method of gussing which output
// is real if two are found in a single input.
output_match = output_match && no_of_output_matches_found == 0;
// save our mixnin's public keys
found_outputs.push_back(mstch::map {
{"my_public_key" , pod_to_hex(txout_k.key)},
{"tx_hash" , tx_hash_str},
{"mine_output" , mine_output},
{"out_idx" , output_idx_in_tx},
{"formed_output_pk", out_pub_key_str},
{"out_in_match" , output_match},
{"amount" , xmreg::xmr_amount_to_str(amount)}
});
// makre only
bool output_match = (txout_k.key == output_data.pubkey);
//cout << "txout_k.key == output_data.pubkey" << endl;
// mark only first output_match as the "real" one
// due to luck of better method of gussing which output
// is real if two are found in a single input.
output_match = output_match && no_of_output_matches_found == 0;
if (mine_output)
{
found_something = true;
show_key_images = true;
// save our mixnin's public keys
found_outputs.push_back(mstch::map {
{"my_public_key" , pod_to_hex(txout_k.key)},
{"tx_hash" , tx_hash_str},
{"mine_output" , mine_output},
{"out_idx" , output_idx_in_tx},
{"formed_output_pk", out_pub_key_str},
{"out_in_match" , output_match},
{"amount" , xmreg::xmr_amount_to_str(amount)}
});
// increase sum_mixin_xmr only when
// public key of an outputs used in ring signature,
// matches a public key in a mixin_tx
if (txout_k.key != output_data.pubkey)
continue;
//cout << "txout_k.key == output_data.pubkey" << endl;
// sum up only first output matched found in each input
if (no_of_output_matches_found == 0)
if (mine_output)
{
// for regular txs, just concentrated on outputs
// which have same amount as the key image.
// for ringct its not possible to know for sure amount
// in key image without spend key, so we just use all
// for regular/old txs there must be also a match
// in amounts, not only in output public keys
if (mixin_tx.version < 2 && amount == in_key.amount)
{
sum_mixin_xmr += amount;
}
else if (mixin_tx.version == 2) // ringct
found_something = true;
show_key_images = true;
// increase sum_mixin_xmr only when
// public key of an outputs used in ring signature,
// matches a public key in a mixin_tx
if (txout_k.key != output_data.pubkey)
continue;
// sum up only first output matched found in each input
if (no_of_output_matches_found == 0)
{
sum_mixin_xmr += amount;
ringct_amount += amount;
// for regular txs, just concentrated on outputs
// which have same amount as the key image.
// for ringct its not possible to know for sure amount
// in key image without spend key, so we just use all
// for regular/old txs there must be also a match
// in amounts, not only in output public keys
if (mixin_tx.version < 2 && amount == in_key.amount)
{
sum_mixin_xmr += amount;
}
else if (mixin_tx.version == 2) // ringct
{
sum_mixin_xmr += amount;
ringct_amount += amount;
}
no_of_matched_mixins++;
}
no_of_matched_mixins++;
}
// generate key_image using this output
// just to see how would having spend keys worked
// crypto::key_image key_img;
//
// if (!xmreg::generate_key_image(derivation,
// output_idx_in_tx, /* position in the tx */
// prv_spend_key,
// address.m_spend_public_key,
// key_img)) {
// cerr << "Cant generate key image for output: "
// << pod_to_hex(output_data.pubkey) << endl;
// break;
// }
//
// cout << "output_data.pubkey: " << pod_to_hex(output_data.pubkey)
// << ", key_img: " << pod_to_hex(key_img)
// << ", key_img == input_key: " << (key_img == in_key.k_image)
// << endl;
// generate key_image using this output
// just to see how would having spend keys worked
// crypto::key_image key_img;
//
// if (!xmreg::generate_key_image(derivation,
// output_idx_in_tx, /* position in the tx */
// prv_spend_key,
// address.m_spend_public_key,
// key_img)) {
// cerr << "Cant generate key image for output: "
// << pod_to_hex(output_data.pubkey) << endl;
// break;
// }
//
// cout << "output_data.pubkey: " << pod_to_hex(output_data.pubkey)
// << ", key_img: " << pod_to_hex(key_img)
// << ", key_img == input_key: " << (key_img == in_key.k_image)
// << endl;
no_of_output_matches_found++;
no_of_output_matches_found++;
} // if (mine_output)
} // if (mine_output)
} // for (const pair<txout_to_key, uint64_t>& mix_out: txd.output_pub_keys)
} // for (const pair<txout_to_key, uint64_t>& mix_out: txd.output_pub_keys)
has_found_outputs = !found_outputs.empty();
has_found_outputs = !found_outputs.empty();
has_mixin_outputs = found_something;
has_mixin_outputs = found_something;
// all_possible_mixins_amount += amount;
// all_possible_mixins_amount += amount;
if (found_something)
all_possible_mixins.push_back(
{mixin_tx_pub_key,
in_key.amount == 0 ? ringct_amount : in_key.amount});
if (found_something)
all_possible_mixins.push_back(
{mixin_tx_pub_key,
in_key.amount == 0 ? ringct_amount : in_key.amount});
++count;
++count;
} // for (const cryptonote::output_data_t& output_data: mixin_outputs)
} // for (const cryptonote::output_data_t& output_data: mixin_outputs)
} // for (const txin_to_key& in_key: input_key_imgs)
} // for (const txin_to_key& in_key: input_key_imgs)
context.emplace("inputs", inputs);
context.emplace("inputs", inputs);
context["show_inputs"] = show_key_images;
context["inputs_no"] = static_cast<uint64_t>(inputs.size());
context["sum_mixin_xmr"] = xmreg::xmr_amount_to_str(
sum_mixin_xmr, "{:0.12f}", false);
context["show_inputs"] = show_key_images;
context["inputs_no"] = static_cast<uint64_t>(inputs.size());
context["sum_mixin_xmr"] = xmreg::xmr_amount_to_str(
sum_mixin_xmr, "{:0.12f}", false);
uint64_t possible_spending {0};
uint64_t possible_spending {0};
//cout << "\nall_possible_mixins: " << all_possible_mixins.size() << '\n';
//cout << "\nall_possible_mixins: " << all_possible_mixins.size() << '\n';
// useful for unit testing as it provides total xmr sum
// of possible mixins
uint64_t all_possible_mixins_amount1 {0};
// useful for unit testing as it provides total xmr sum
// of possible mixins
uint64_t all_possible_mixins_amount1 {0};
for (auto& p: all_possible_mixins)
all_possible_mixins_amount1 += p.second;
for (auto& p: all_possible_mixins)
all_possible_mixins_amount1 += p.second;
//cout << "\all_possible_mixins_amount: " << all_possible_mixins_amount1 << '\n';
//cout << "\all_possible_mixins_amount: " << all_possible_mixins_amount1 << '\n';
//cout << "\nmixins: " << mix << '\n';
//cout << "\nmixins: " << mix << '\n';
context["no_all_possible_mixins"] = static_cast<uint64_t>(all_possible_mixins.size());
context["all_possible_mixins_amount"] = all_possible_mixins_amount1;
context["no_all_possible_mixins"] = static_cast<uint64_t>(all_possible_mixins.size());
context["all_possible_mixins_amount"] = all_possible_mixins_amount1;
// show spending only if sum of mixins is more than
// what we get + fee, and number of perferctly matched
// mixis is equal to number of inputs
if (sum_mixin_xmr > (sum_xmr + txd.fee)
&& no_of_matched_mixins == inputs.size())
{
// (outcoming - incoming) - fee
possible_spending = (sum_mixin_xmr - sum_xmr) - txd.fee;
}
// show spending only if sum of mixins is more than
// what we get + fee, and number of perferctly matched
// mixis is equal to number of inputs
if (sum_mixin_xmr > (sum_xmr + txd.fee)
&& no_of_matched_mixins == inputs.size())
{
// (outcoming - incoming) - fee
possible_spending = (sum_mixin_xmr - sum_xmr) - txd.fee;
}
context["possible_spending"] = xmreg::xmr_amount_to_str(
possible_spending, "{:0.12f}", false);
context["possible_spending"] = xmreg::xmr_amount_to_str(
possible_spending, "{:0.12f}", false);
} // if (enable_mixin_guess)

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