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Use sigops from mempool/electrs, fix the nodejs sigop calculation

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Mononaut 2023-09-16 02:10:38 +00:00
parent 74a2cedc7a
commit ea2a7e7505
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2 changed files with 12 additions and 2 deletions
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1
backend/src/api/bitcoin/esplora-api.interface.ts
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@ -6,6 +6,7 @@ export namespace IEsploraApi {
size: number;
weight: number;
fee: number;
sigops?: number;
vin: Vin[];
vout: Vout[];
status: Status;

13
backend/src/api/transaction-utils.ts
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@ -116,7 +116,10 @@ class TransactionUtils {
public extendMempoolTransaction(transaction: IEsploraApi.Transaction): MempoolTransactionExtended {
const vsize = Math.ceil(transaction.weight / 4);
const fractionalVsize = (transaction.weight / 4);
const sigops = !Common.isLiquid() ? this.countSigops(transaction) : 0;
let sigops = transaction.sigops;
if (sigops == null) {
sigops = !Common.isLiquid() ? this.countSigops(transaction) : 0;
}
// https://github.com/bitcoin/bitcoin/blob/e9262ea32a6e1d364fb7974844fadc36f931f8c6/src/policy/policy.cpp#L295-L298
const adjustedVsize = Math.max(fractionalVsize, sigops * 5); // adjusted vsize = Max(weight, sigops * bytes_per_sigop) / witness_scale_factor
const feePerVbytes = (transaction.fee || 0) / fractionalVsize;
@ -155,7 +158,7 @@ class TransactionUtils {
sigops += 20 * (script.match(/OP_CHECKMULTISIG/g)?.length || 0);
} else {
// in redeem scripts and witnesses, worth N if preceded by OP_N, 20 otherwise
const matches = script.matchAll(/(?:OP_(\d+))? OP_CHECKMULTISIG/g);
const matches = script.matchAll(/(?:OP_(?:PUSHNUM_)?(\d+))? OP_CHECKMULTISIG/g);
for (const match of matches) {
const n = parseInt(match[1]);
if (Number.isInteger(n)) {
@ -189,6 +192,12 @@ class TransactionUtils {
sigops += this.countScriptSigops(bitcoinjs.script.toASM(Buffer.from(input.witness[input.witness.length - 1], 'hex')), false, true);
}
break;
case input.prevout.scriptpubkey_type === 'p2sh':
if (input.inner_redeemscript_asm) {
sigops += this.countScriptSigops(input.inner_redeemscript_asm);
}
break;
}
}
}