diff --git a/frontend/src/app/shared/script.utils.ts b/frontend/src/app/shared/script.utils.ts index f0c4701db..8453bdd63 100644 --- a/frontend/src/app/shared/script.utils.ts +++ b/frontend/src/app/shared/script.utils.ts @@ -256,6 +256,11 @@ export function detectScriptTemplate(type: ScriptType, script_asm: string, witne return ScriptTemplates.multisig(tapscriptMultisig.m, tapscriptMultisig.n); } + const tapscriptUnanimousMultisig = parseTapscriptUnanimousMultisig(script_asm); + if (tapscriptUnanimousMultisig) { + return ScriptTemplates.multisig(tapscriptUnanimousMultisig, tapscriptUnanimousMultisig); + } + return; } @@ -366,6 +371,53 @@ export function parseTapscriptMultisig(script: string): undefined | { m: number, return { m, n }; } +export function parseTapscriptUnanimousMultisig(script: string): undefined | number { + if (!script) { + return; + } + + const ops = script.split(' '); + // At minimum, 2 pubkey group (3 tokens) = 6 tokens + if (ops.length < 6) { + return; + } + + if (ops.length % 3 !== 0) { + return; + } + + const n = ops.length / 3; + + for (let i = 0; i < n; i++) { + const pushOp = ops.shift(); + const pubkey = ops.shift(); + const sigOp = ops.shift(); + + if (pushOp !== 'OP_PUSHBYTES_32') { + return; + } + if (!/^[0-9a-fA-F]{64}$/.test(pubkey)) { + return; + } + if (i < n - 1) { + if (sigOp !== 'OP_CHECKSIGVERIFY') { + return; + } + } else { + // Last opcode can be either CHECKSIG or CHECKSIGVERIFY + if (!(sigOp === 'OP_CHECKSIGVERIFY' || sigOp === 'OP_CHECKSIG')) { + return; + } + } + } + + if (ops.length) { + return; + } + + return n; +} + export function getVarIntLength(n: number): number { if (n < 0xfd) { return 1;