Verify Bitcoin redeemer script

keep-network · Oct 25, 2023 · bb14497 · bb14497
1 parent 103a22d
commit bb14497
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/typescript/src/services/redemptions/redemptions-service.ts b/typescript/src/services/redemptions/redemptions-service.ts
@@ -7,6 +7,7 @@ import {
   BitcoinAddressConverter,
   BitcoinClient,
   BitcoinNetwork,
+  BitcoinScriptUtils,
   BitcoinTxOutput,
   BitcoinUtxo,
 } from "../../lib/bitcoin"
@@ -58,7 +59,14 @@ export class RedemptionsService {
       bitcoinNetwork
     )
 
-    // TODO: Validate the given script is supported for redemption.
+    if (
+      !BitcoinScriptUtils.isP2PKHScript(redeemerOutputScript) &&
+      !BitcoinScriptUtils.isP2WPKHScript(redeemerOutputScript) &&
+      !BitcoinScriptUtils.isP2SHScript(redeemerOutputScript) &&
+      !BitcoinScriptUtils.isP2WSHScript(redeemerOutputScript)
+    ) {
+      throw new Error("Redeemer output script must be of standard type")
+    }
 
     const { walletPublicKey, mainUtxo } = await this.findWalletForRedemption(
       redeemerOutputScript,