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31 lines
766 B
31 lines
766 B
// OP_0 [signatures ...]
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import { Stack } from '../../payments';
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import * as bscript from '../../script';
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import { OPS } from '../../script';
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function partialSignature(value: number | Buffer): boolean {
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return (
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value === OPS.OP_0 || bscript.isCanonicalScriptSignature(value as Buffer)
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);
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}
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export function check(
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script: Buffer | Stack,
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allowIncomplete?: boolean,
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): boolean {
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const chunks = bscript.decompile(script) as Stack;
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if (chunks.length < 2) return false;
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if (chunks[0] !== OPS.OP_0) return false;
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if (allowIncomplete) {
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return chunks.slice(1).every(partialSignature);
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}
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return (chunks.slice(1) as Buffer[]).every(
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bscript.isCanonicalScriptSignature,
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);
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}
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check.toJSON = (): string => {
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return 'multisig input';
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};
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