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Add new setting to decode tx OP_RETURN values

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This commit is contained in:
joeuhren
2021-07-09 20:39:02 -06:00
parent 460ca331b6
commit 6057b875ec
6 changed files with 45 additions and 6 deletions
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lib/database.js
+26 -2
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@@ -136,6 +136,19 @@ function save_tx(txid, blockheight, cb) {
subloop.next();
}, function() {
lib.calculate_total(vout, function(total) {
var op_return = null;
// check if the op_return value should be decoded and saved
if (settings.transaction_page.show_op_return) {
// loop through vout to find the op_return value
tx.vout.forEach(function (vout_data) {
// check if the op_return value exists
if (vout_data.scriptPubKey != null && vout_data.scriptPubKey.asm != null && vout_data.scriptPubKey.asm.indexOf('OP_RETURN') > -1) {
// decode the op_return value
op_return = hex_to_ascii(vout_data.scriptPubKey.asm.replace('OP_RETURN', '').trim());
}
});
}
var newTx = new Tx({
txid: tx.txid,
vin: nvin,
@@ -144,7 +157,8 @@ function save_tx(txid, blockheight, cb) {
timestamp: tx.time,
blockhash: tx.blockhash,
blockindex: blockheight,
tx_type: (tx_type_vout == null ? tx_type_vin : tx_type_vout)
tx_type: (tx_type_vout == null ? tx_type_vin : tx_type_vout),
op_return: op_return
});
newTx.save(function(err) {
@@ -190,6 +204,13 @@ function check_add_db_field(model_obj, field_name, default_value, cb) {
});
}
function hex_to_ascii(hex) {
var str = '';
for (var i = 0; i < hex.length; i += 2)
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
return str;
}
module.exports = {
// initialize DB
connect: function(database, cb) {
@@ -323,7 +344,10 @@ module.exports = {
// collection has data
// determine if tx_type field exists
check_add_db_field(Tx, 'tx_type', null, function(exists) {
return cb(true);
// determine if op_return field exists
check_add_db_field(Tx, 'op_return', null, function(exists) {
return cb(true);
});
});
} else
return cb(false);