mirror of
https://git.wownero.com/wownero/onion-wownero-blockchain-explorer.git
synced 2024-08-15 00:33:12 +00:00
fix: key image checker shows RingCT amounts correctly for each spent key image
This commit is contained in:
moneroexamples
parent
31fbb4423e
commit
1d905bb7f3
4 changed files with 171 additions and 23 deletions
163
src/page.h
163
src/page.h
|
|
@ -2182,7 +2182,6 @@ public:
|
|||
|
||||
if (!found_tx_hashes.empty())
|
||||
{
|
||||
|
||||
string tx_hash_str = found_tx_hashes.at(0);
|
||||
|
||||
key_img_info["tx_hash"] = tx_hash_str;
|
||||
|
|
@ -2205,15 +2204,13 @@ public:
|
|||
|
||||
vector<txin_to_key> tx_key_imgs = get_key_images(tx);
|
||||
|
||||
const vector<txin_to_key>::const_iterator it
|
||||
= find_if(tx_key_imgs.begin(), tx_key_imgs.end(),
|
||||
[&](txin_to_key tx_in)
|
||||
for (auto it = tx_key_imgs.begin(); it != tx_key_imgs.end(); ++it)
|
||||
{
|
||||
return tx_in.k_image == key_image;
|
||||
});
|
||||
if ((*it).k_image != key_image)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
if (it != tx_key_imgs.end())
|
||||
{
|
||||
uint64_t xmr_amount = (*it).amount;
|
||||
|
||||
// RingCT, i.e., tx version is 2
|
||||
|
|
@ -2221,29 +2218,155 @@ public:
|
|||
// otherwise they all appear to be zero.
|
||||
// so to find the amount, first we need to find
|
||||
// our output in the key images's mixins, and then
|
||||
|
||||
// decode it using ringct.
|
||||
// this requires to loop over mixins of each key image,
|
||||
// get its source txs, get mixin index in that tx,
|
||||
// and check if its our mixin or not using private_view_key
|
||||
// and public_spend_key_provided
|
||||
if (tx.version == 2)
|
||||
{
|
||||
// bool r = decode_ringct(tx.rct_signatures,
|
||||
// txd.pk,
|
||||
// prv_view_key,
|
||||
// i,
|
||||
// tx.rct_signatures.ecdhInfo[i].mask,
|
||||
// rct_amount);
|
||||
|
||||
vector<uint64_t> absolute_offsets
|
||||
= relative_output_offsets_to_absolute((*it).key_offsets);
|
||||
|
||||
// need to go through each mixin, fetch its tx
|
||||
// find its index in that txs, obtain tx_public_key
|
||||
// derive a deriviec_key, compare derived output key
|
||||
// with the output key in txs, and decode rct amount
|
||||
// if equal
|
||||
for (uint64_t out_idx: absolute_offsets)
|
||||
{
|
||||
|
||||
//tx_out_index is pair<transaction hash, output index>
|
||||
tx_out_index toi;
|
||||
|
||||
try
|
||||
{
|
||||
// get pair<transaction hash, output index>
|
||||
toi = core_storage->get_db()
|
||||
.get_output_tx_and_index((*it).amount, out_idx);
|
||||
}
|
||||
catch (const OUTPUT_DNE& e)
|
||||
{
|
||||
string error_msg = fmt::format(
|
||||
"Output with amount {:d} and index {:d} does not exist!",
|
||||
(*it).amount, out_idx);
|
||||
|
||||
context["has_error"] = true;
|
||||
context["error_msg"] = error_msg;
|
||||
|
||||
return mstch::render(full_page, context);
|
||||
}
|
||||
|
||||
// get actual transaction structure from tx_hash
|
||||
transaction output_source_tx;
|
||||
|
||||
if (!mcore->get_tx(toi.first, output_source_tx))
|
||||
{
|
||||
string error_msg = fmt::format(
|
||||
"Cant get tx in blockchain: {:s}", toi.first);
|
||||
|
||||
context["has_error"] = true;
|
||||
context["error_msg"] = error_msg;
|
||||
|
||||
return mstch::render(full_page, context);
|
||||
}
|
||||
|
||||
uint64_t output_idx_in_tx = toi.second;
|
||||
|
||||
// get tx outpout key
|
||||
const txout_to_key& output_pub_key
|
||||
= boost::get<txout_to_key>(
|
||||
output_source_tx.vout[output_idx_in_tx].target);
|
||||
|
||||
uint64_t rct_amount = output_source_tx.vout[output_idx_in_tx].amount;
|
||||
|
||||
public_key tx_pub_key = xmreg::get_tx_pub_key_from_received_outs(
|
||||
output_source_tx);
|
||||
|
||||
// public transaction key is combined with our viewkey
|
||||
// to create, so called, derived key.
|
||||
key_derivation derivation;
|
||||
|
||||
if (!generate_key_derivation(tx_pub_key, prv_view_key, derivation))
|
||||
{
|
||||
string error_msg = fmt::format(
|
||||
"Cant get derived key for "
|
||||
"pub_tx_key: {:s}, prv_view_key: {:s}"
|
||||
, tx_pub_key, prv_view_key);
|
||||
|
||||
context["has_error"] = true;
|
||||
context["error_msg"] = error_msg;
|
||||
|
||||
return mstch::render(full_page, context);
|
||||
}
|
||||
|
||||
// get the tx output public key
|
||||
// that normally would be generated for us,
|
||||
// if someone had sent us some xmr.
|
||||
public_key derived_output_pubkey;
|
||||
|
||||
derive_public_key(derivation,
|
||||
output_idx_in_tx,
|
||||
xmr_address->m_spend_public_key,
|
||||
derived_output_pubkey);
|
||||
|
||||
// check if generated public key matches the current output's key
|
||||
bool mine_output = (output_pub_key.key == derived_output_pubkey);
|
||||
|
||||
if (mine_output)
|
||||
{
|
||||
// seems we found our output. so now lets decode its amount
|
||||
// using ringct
|
||||
|
||||
bool r;
|
||||
|
||||
r = decode_ringct(output_source_tx.rct_signatures,
|
||||
tx_pub_key,
|
||||
prv_view_key,
|
||||
output_idx_in_tx,
|
||||
output_source_tx.rct_signatures.ecdhInfo[output_idx_in_tx].mask,
|
||||
rct_amount);
|
||||
|
||||
if (!r)
|
||||
{
|
||||
string error_msg = fmt::format(
|
||||
"Cant decode ringCT for "
|
||||
"pub_tx_key: {:s} "
|
||||
"using prv_view_key: {:s}",
|
||||
tx_pub_key, prv_view_key);
|
||||
|
||||
context["has_error"] = true;
|
||||
context["error_msg"] = error_msg;
|
||||
|
||||
return mstch::render(full_page, context);
|
||||
}
|
||||
|
||||
xmr_amount = rct_amount;
|
||||
|
||||
break;
|
||||
|
||||
} // if (mine_output)
|
||||
|
||||
} // for (uint64_t out_idx: (*it).key_offsets)
|
||||
|
||||
} // if (tx.version == 2)
|
||||
|
||||
key_img_info["amount"] = xmreg::xmr_amount_to_str(xmr_amount);
|
||||
key_img_info["is_ringct"] = tx.version == 2 ? true: false;
|
||||
total_xmr += xmr_amount;
|
||||
}
|
||||
|
||||
} // for (it = tx_key_imgs.begin(); it != tx_key_imgs.end(); ++it)
|
||||
|
||||
key_img_info["timestamp"] = xmreg::timestamp_to_str(blk_timestamp);
|
||||
}
|
||||
}
|
||||
|
||||
} // if (mcore->get_tx(tx_hash_str, tx))
|
||||
|
||||
} // if (!found_tx_hashes.empty())
|
||||
|
||||
key_imgs_ctx.push_back(key_img_info);
|
||||
|
||||
//signed_key_images.push_back(make_pair(key_image, signature));
|
||||
}
|
||||
} // for (size_t n = 0; n < no_key_images; ++n)
|
||||
|
||||
if (total_xmr > 0)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -41,6 +41,7 @@
|
|||
<td>Key no.</td>
|
||||
<td>Key image</td>
|
||||
<td>Timestamp</td>
|
||||
<td>RingCT</td>
|
||||
<td>Amount</td>
|
||||
<td>Is spent?</td>
|
||||
</tr>
|
||||
|
|
@ -57,6 +58,7 @@
|
|||
{{/tx_hash_found}}
|
||||
</td>
|
||||
<td>{{timestamp}}</td>
|
||||
<td>{{is_ringct}}</td>
|
||||
<td>{{amount}}</td>
|
||||
<td>
|
||||
{{#is_spent}}
|
||||
|
|
|
|||
|
|
@ -948,5 +948,20 @@ is_output_ours(const size_t& output_index,
|
|||
return false;
|
||||
}
|
||||
|
||||
|
||||
bool
|
||||
get_real_output_for_key_image(const key_image& ki,
|
||||
const transaction& tx,
|
||||
const secret_key& private_view_key,
|
||||
const public_key& public_spend_key,
|
||||
uint64_t output_idx,
|
||||
public_key output_pub_key)
|
||||
{
|
||||
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -255,6 +255,14 @@ is_output_ours(const size_t& output_index,
|
|||
const secret_key& private_view_key,
|
||||
const public_key& public_spend_key);
|
||||
|
||||
bool
|
||||
get_real_output_for_key_image(const key_image& ki,
|
||||
const transaction& tx,
|
||||
const secret_key& private_view_key,
|
||||
const public_key& public_spend_key,
|
||||
uint64_t output_idx,
|
||||
public_key output_pub_key);
|
||||
|
||||
}
|
||||
|
||||
#endif //XMREG01_TOOLS_H
|
||||
|
|
|
|||
Loading…
Reference in a new issue