50 lines
1.2 KiB
TypeScript
50 lines
1.2 KiB
TypeScript
// <scriptSig> {serialized scriptPubKey script}
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import * as bscript from '../../script';
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const typeforce = require('typeforce');
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import * as p2ms from '../multisig';
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import * as p2pk from '../pubkey';
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import * as p2pkh from '../pubkeyhash';
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export function check(
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chunks: Array<Buffer>,
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allowIncomplete?: boolean,
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): boolean {
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typeforce(typeforce.Array, chunks);
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if (chunks.length < 1) return false;
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const witnessScript = chunks[chunks.length - 1];
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if (!Buffer.isBuffer(witnessScript)) return false;
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const witnessScriptChunks = bscript.decompile(witnessScript);
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// is witnessScript a valid script?
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if (!witnessScriptChunks || witnessScriptChunks.length === 0) return false;
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const witnessRawScriptSig = bscript.compile(chunks.slice(0, -1));
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// match types
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if (
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p2pkh.input.check(witnessRawScriptSig) &&
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p2pkh.output.check(witnessScriptChunks)
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)
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return true;
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if (
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p2ms.input.check(witnessRawScriptSig, allowIncomplete) &&
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p2ms.output.check(witnessScriptChunks)
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)
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return true;
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if (
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p2pk.input.check(witnessRawScriptSig) &&
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p2pk.output.check(witnessScriptChunks)
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)
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return true;
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return false;
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}
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check.toJSON = function() {
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return 'witnessScriptHash input';
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};
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