51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
// <scriptSig> {serialized scriptPubKey script}
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var bscript = require('../../script')
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var typeforce = require('typeforce')
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function check (script, allowIncomplete) {
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var chunks = bscript.decompile(script)
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if (chunks.length < 1) return false
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var lastChunk = chunks[chunks.length - 1]
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if (!Buffer.isBuffer(lastChunk)) return false
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var scriptSigChunks = chunks.slice(0, -1)
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var redeemScriptChunks = bscript.decompile(lastChunk)
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var outputType = bscript.classifyOutput(redeemScriptChunks)
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if (outputType === bscript.types.P2WSH || outputType === bscript.types.P2WPKH) {
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return true
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}
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var inputType = bscript.classifyInput(scriptSigChunks, allowIncomplete)
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return inputType === outputType
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}
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check.toJSON = function () { return 'scriptHash input' }
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function encode (redeemScriptSig, redeemScript) {
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var scriptSigChunks = bscript.decompile(redeemScriptSig)
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var serializedScriptPubKey = bscript.compile(redeemScript)
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return bscript.compile([].concat(
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scriptSigChunks,
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serializedScriptPubKey
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))
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}
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function decode (buffer) {
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var chunks = bscript.decompile(buffer)
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typeforce(check, chunks)
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return {
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redeemScriptSig: bscript.compile(chunks.slice(0, -1)),
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redeemScript: chunks[chunks.length - 1]
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}
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}
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module.exports = {
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check: check,
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decode: decode,
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encode: encode
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}
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