remove Script object
This commit is contained in:
Daniel Cousens
parent
e743c58ed6
commit
e05f8a542d
11 changed files with 223 additions and 305 deletions
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@ -20,10 +20,10 @@ function fromBase58Check (address) {
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function fromOutputScript (script, network) {
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network = network || networks.bitcoin
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if (scripts.isPubKeyHashOutput(script)) return toBase58Check(Script.fromBuffer(script).chunks[2], network.pubKeyHash)
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if (scripts.isScriptHashOutput(script)) return toBase58Check(Script.fromBuffer(script).chunks[1], network.scriptHash)
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if (scripts.isPubKeyHashOutput(script)) return toBase58Check(script[2], network.pubKeyHash)
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if (scripts.isScriptHashOutput(script)) return toBase58Check(script[1], network.scriptHash)
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throw new Error(Script.fromBuffer(script).toASM() + ' has no matching Address')
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throw new Error(Script.toASM(script) + ' has no matching Address')
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}
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function toBase58Check (hash, version) {
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144
src/script.js
144
src/script.js
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@ -1,17 +1,30 @@
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var bufferutils = require('./bufferutils')
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var crypto = require('./crypto')
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var opcodes = require('./opcodes')
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var typeforce = require('typeforce')
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var types = require('./types')
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var opcodes = require('./opcodes')
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function Script (buffer, chunks) {
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typeforce(types.tuple(types.Buffer, types.Array), arguments)
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this.buffer = buffer
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this.chunks = chunks
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function coerceChunks (chunks) {
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return types.Array(chunks) ? chunks : decompile(chunks)
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}
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Script.fromASM = function (asm) {
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function toASM (chunks) {
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chunks = coerceChunks(chunks)
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return chunks.map(function (chunk) {
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// data chunk
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if (Buffer.isBuffer(chunk)) {
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return chunk.toString('hex')
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// opcode
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} else {
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return reverseOps[chunk]
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}
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}).join(' ')
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}
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function fromASM (asm) {
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typeforce(types.String, asm)
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var strChunks = asm.split(' ')
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var chunks = strChunks.map(function (strChunk) {
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// opcode
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@ -24,44 +37,10 @@ Script.fromASM = function (asm) {
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}
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})
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return Script.fromChunks(chunks)
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return chunks
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}
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Script.fromBuffer = function (buffer) {
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var chunks = []
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var i = 0
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while (i < buffer.length) {
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var opcode = buffer.readUInt8(i)
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// data chunk
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if ((opcode > opcodes.OP_0) && (opcode <= opcodes.OP_PUSHDATA4)) {
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var d = bufferutils.readPushDataInt(buffer, i)
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// did reading a pushDataInt fail? return non-chunked script
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if (d === null) return new Script(buffer, [])
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i += d.size
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// attempt to read too much data?
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if (i + d.number > buffer.length) return new Script(buffer, [])
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var data = buffer.slice(i, i + d.number)
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i += d.number
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chunks.push(data)
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// opcode
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} else {
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chunks.push(opcode)
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i += 1
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}
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}
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return new Script(buffer, chunks)
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}
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Script.fromChunks = function (chunks) {
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function compile (chunks) {
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typeforce(types.Array, chunks)
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var bufferSize = chunks.reduce(function (accum, chunk) {
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@ -93,28 +72,43 @@ Script.fromChunks = function (chunks) {
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})
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if (offset !== buffer.length) throw new Error('Could not decode chunks')
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return new Script(buffer, chunks)
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return buffer
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}
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Script.fromHex = function (hex) {
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return Script.fromBuffer(new Buffer(hex, 'hex'))
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function decompile (buffer) {
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typeforce(types.Buffer, buffer)
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var chunks = []
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var i = 0
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while (i < buffer.length) {
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var opcode = buffer.readUInt8(i)
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// data chunk
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if ((opcode > opcodes.OP_0) && (opcode <= opcodes.OP_PUSHDATA4)) {
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var d = bufferutils.readPushDataInt(buffer, i)
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// did reading a pushDataInt fail? empty script
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if (d === null) return []
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i += d.size
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// attempt to read too much data? empty script
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if (i + d.number > buffer.length) return []
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var data = buffer.slice(i, i + d.number)
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i += d.number
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chunks.push(data)
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// opcode
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} else {
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chunks.push(opcode)
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i += 1
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}
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}
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Script.EMPTY = Script.fromChunks([])
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Script.prototype.equals = function (script) {
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return bufferutils.equal(this.buffer, script.buffer)
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}
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Script.prototype.getHash = function () {
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return crypto.hash160(this.buffer)
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}
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// FIXME: doesn't work for data chunks, maybe time to use buffertools.compare...
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Script.prototype.without = function (needle) {
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return Script.fromChunks(this.chunks.filter(function (op) {
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return op !== needle
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}))
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return chunks
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}
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var reverseOps = []
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@ -123,25 +117,9 @@ for (var op in opcodes) {
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reverseOps[code] = op
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}
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Script.prototype.toASM = function () {
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return this.chunks.map(function (chunk) {
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// data chunk
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if (Buffer.isBuffer(chunk)) {
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return chunk.toString('hex')
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// opcode
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} else {
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return reverseOps[chunk]
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module.exports = {
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compile: compile,
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decompile: decompile,
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toASM: toASM,
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fromASM: fromASM
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}
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}).join(' ')
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}
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Script.prototype.toBuffer = function () {
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return this.buffer
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}
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Script.prototype.toHex = function () {
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return this.toBuffer().toString('hex')
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}
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module.exports = Script
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217
src/scripts.js
217
src/scripts.js
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@ -40,105 +40,102 @@ function isCanonicalSignature (buffer) {
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return true
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}
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function isPubKeyHashInput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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return script.chunks.length === 2 &&
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isCanonicalSignature(script.chunks[0]) &&
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isCanonicalPubKey(script.chunks[1])
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function coerceBuffer (buffer) {
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return types.Buffer(buffer) ? buffer : Script.compile(buffer)
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}
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function isPubKeyHashOutput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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return script.chunks.length === 5 &&
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script.chunks[0] === ops.OP_DUP &&
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script.chunks[1] === ops.OP_HASH160 &&
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Buffer.isBuffer(script.chunks[2]) &&
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script.chunks[2].length === 20 &&
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script.chunks[3] === ops.OP_EQUALVERIFY &&
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script.chunks[4] === ops.OP_CHECKSIG
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function coerceChunks (chunks) {
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return types.Array(chunks) ? chunks : Script.decompile(chunks)
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}
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function isPubKeyInput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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function isPubKeyHashInput (chunks) {
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chunks = coerceChunks(chunks)
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return script.chunks.length === 1 &&
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isCanonicalSignature(script.chunks[0])
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return chunks.length === 2 &&
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isCanonicalSignature(chunks[0]) &&
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isCanonicalPubKey(chunks[1])
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}
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function isPubKeyOutput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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function isPubKeyHashOutput (chunks) {
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chunks = coerceChunks(chunks)
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return script.chunks.length === 2 &&
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isCanonicalPubKey(script.chunks[0]) &&
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script.chunks[1] === ops.OP_CHECKSIG
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return chunks.length === 5 &&
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chunks[0] === ops.OP_DUP &&
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chunks[1] === ops.OP_HASH160 &&
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Buffer.isBuffer(chunks[2]) &&
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chunks[2].length === 20 &&
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chunks[3] === ops.OP_EQUALVERIFY &&
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chunks[4] === ops.OP_CHECKSIG
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}
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function isScriptHashInput (script, allowIncomplete) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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function isPubKeyInput (chunks) {
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chunks = coerceChunks(chunks)
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if (script.chunks.length < 2) return false
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return chunks.length === 1 &&
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isCanonicalSignature(chunks[0])
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}
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var lastChunk = script.chunks[script.chunks.length - 1]
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function isPubKeyOutput (chunks) {
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chunks = coerceChunks(chunks)
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return chunks.length === 2 &&
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isCanonicalPubKey(chunks[0]) &&
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chunks[1] === ops.OP_CHECKSIG
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}
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function isScriptHashInput (chunks, allowIncomplete) {
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chunks = coerceChunks(chunks)
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if (chunks.length < 2) 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 scriptSig = Script.fromChunks(script.chunks.slice(0, -1)).buffer
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var redeemScript = lastChunk
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var scriptSigChunks = chunks.slice(0, -1)
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var redeemScriptChunks = Script.decompile(lastChunk)
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// is redeemScript a valid script?
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if (Script.fromBuffer(redeemScript).chunks.length === 0) return false
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if (redeemScriptChunks.length === 0) return false
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return classifyInput(scriptSig, allowIncomplete) === classifyOutput(redeemScript)
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return classifyInput(scriptSigChunks, allowIncomplete) === classifyOutput(redeemScriptChunks)
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}
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function isScriptHashOutput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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function isScriptHashOutput (chunks) {
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chunks = coerceChunks(chunks)
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return script.chunks.length === 3 &&
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script.chunks[0] === ops.OP_HASH160 &&
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Buffer.isBuffer(script.chunks[1]) &&
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script.chunks[1].length === 20 &&
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script.chunks[2] === ops.OP_EQUAL
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return chunks.length === 3 &&
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chunks[0] === ops.OP_HASH160 &&
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Buffer.isBuffer(chunks[1]) &&
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chunks[1].length === 20 &&
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chunks[2] === ops.OP_EQUAL
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}
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// allowIncomplete is to account for combining signatures
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// See https://github.com/bitcoin/bitcoin/blob/f425050546644a36b0b8e0eb2f6934a3e0f6f80f/src/script/sign.cpp#L195-L197
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function isMultisigInput (script, allowIncomplete) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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if (script.chunks.length < 2) return false
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if (script.chunks[0] !== ops.OP_0) return false
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function isMultisigInput (chunks, allowIncomplete) {
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chunks = coerceChunks(chunks)
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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 script.chunks.slice(1).every(function (chunk) {
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return chunks.slice(1).every(function (chunk) {
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return chunk === ops.OP_0 || isCanonicalSignature(chunk)
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})
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}
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return script.chunks.slice(1).every(isCanonicalSignature)
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return chunks.slice(1).every(isCanonicalSignature)
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}
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function isMultisigOutput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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function isMultisigOutput (chunks) {
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chunks = coerceChunks(chunks)
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if (chunks.length < 4) return false
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if (chunks[chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
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if (script.chunks.length < 4) return false
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if (script.chunks[script.chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
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var mOp = script.chunks[0]
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var mOp = chunks[0]
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if (mOp === ops.OP_0) return false
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if (mOp < ops.OP_1) return false
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if (mOp > ops.OP_16) return false
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var nOp = script.chunks[script.chunks.length - 2]
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var nOp = chunks[chunks.length - 2]
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if (nOp === ops.OP_0) return false
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if (nOp < ops.OP_1) return false
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if (nOp > ops.OP_16) return false
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@ -147,47 +144,43 @@ function isMultisigOutput (script) {
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var n = nOp - (ops.OP_1 - 1)
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if (n < m) return false
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var pubKeys = script.chunks.slice(1, -2)
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var pubKeys = chunks.slice(1, -2)
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if (n < pubKeys.length) return false
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return pubKeys.every(isCanonicalPubKey)
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}
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function isNullDataOutput (script) {
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typeforce(types.Buffer, script)
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script = Script.fromBuffer(script)
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return script.chunks[0] === ops.OP_RETURN
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function isNullDataOutput (chunks) {
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chunks = coerceChunks(chunks)
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return chunks[0] === ops.OP_RETURN
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}
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function classifyOutput (script) {
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typeforce(types.Buffer, script)
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if (isPubKeyHashOutput(script)) {
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function classifyOutput (chunks) {
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chunks = coerceChunks(chunks)
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if (isPubKeyHashOutput(chunks)) {
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return 'pubkeyhash'
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} else if (isScriptHashOutput(script)) {
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} else if (isScriptHashOutput(chunks)) {
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return 'scripthash'
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} else if (isMultisigOutput(script)) {
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} else if (isMultisigOutput(chunks)) {
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return 'multisig'
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} else if (isPubKeyOutput(script)) {
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} else if (isPubKeyOutput(chunks)) {
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return 'pubkey'
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} else if (isNullDataOutput(script)) {
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} else if (isNullDataOutput(chunks)) {
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return 'nulldata'
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}
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return 'nonstandard'
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}
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function classifyInput (script, allowIncomplete) {
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typeforce(types.Buffer, script)
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if (isPubKeyHashInput(script)) {
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function classifyInput (chunks, allowIncomplete) {
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chunks = coerceChunks(chunks)
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if (isPubKeyHashInput(chunks)) {
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return 'pubkeyhash'
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} else if (isMultisigInput(script, allowIncomplete)) {
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} else if (isMultisigInput(chunks, allowIncomplete)) {
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return 'multisig'
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} else if (isScriptHashInput(script, allowIncomplete)) {
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} else if (isScriptHashInput(chunks, allowIncomplete)) {
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return 'scripthash'
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} else if (isPubKeyInput(script)) {
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} else if (isPubKeyInput(chunks)) {
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return 'pubkey'
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}
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@ -197,34 +190,21 @@ function classifyInput (script, allowIncomplete) {
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// Standard Script Templates
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// {pubKey} OP_CHECKSIG
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function pubKeyOutput (pubKey) {
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return Script.fromChunks([
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pubKey,
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ops.OP_CHECKSIG
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]).buffer
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return Script.compile([pubKey, ops.OP_CHECKSIG])
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}
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// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
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function pubKeyHashOutput (hash) {
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typeforce(types.Hash160bit, hash)
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function pubKeyHashOutput (pubKeyHash) {
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typeforce(typeforce.Buffer, pubKeyHash)
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return Script.fromChunks([
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ops.OP_DUP,
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ops.OP_HASH160,
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hash,
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ops.OP_EQUALVERIFY,
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ops.OP_CHECKSIG
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]).buffer
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return Script.compile([ops.OP_DUP, ops.OP_HASH160, pubKeyHash, ops.OP_EQUALVERIFY, ops.OP_CHECKSIG])
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}
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// OP_HASH160 {scriptHash} OP_EQUAL
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function scriptHashOutput (hash) {
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typeforce(types.Hash160bit, hash)
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function scriptHashOutput (scriptHash) {
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typeforce(typeforce.Buffer, scriptHash)
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return Script.fromChunks([
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ops.OP_HASH160,
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hash,
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ops.OP_EQUAL
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]).buffer
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return Script.compile([ops.OP_HASH160, scriptHash, ops.OP_EQUAL])
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}
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// m [pubKeys ...] n OP_CHECKMULTISIG
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@ -234,46 +214,47 @@ function multisigOutput (m, pubKeys) {
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var n = pubKeys.length
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if (n < m) throw new Error('Not enough pubKeys provided')
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return Script.fromChunks([].concat(
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return Script.compile([].concat(
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(ops.OP_1 - 1) + m,
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pubKeys,
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(ops.OP_1 - 1) + n,
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ops.OP_CHECKMULTISIG
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)).buffer
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))
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}
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// {signature}
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function pubKeyInput (signature) {
|
||||
typeforce(types.Buffer, signature)
|
||||
|
||||
return Script.fromChunks([signature]).buffer
|
||||
return Script.compile([signature])
|
||||
}
|
||||
|
||||
// {signature} {pubKey}
|
||||
function pubKeyHashInput (signature, pubKey) {
|
||||
typeforce(types.tuple(types.Buffer, types.Buffer), arguments)
|
||||
|
||||
return Script.fromChunks([signature, pubKey]).buffer
|
||||
return Script.compile([signature, pubKey])
|
||||
}
|
||||
|
||||
// <scriptSig> {serialized scriptPubKey script}
|
||||
function scriptHashInput (scriptSig, scriptPubKey) {
|
||||
var scriptSigChunks = Script.fromBuffer(scriptSig).chunks
|
||||
function scriptHashInput (scriptSig, scriptPubKeyBuffer) {
|
||||
scriptSig = coerceChunks(scriptSig)
|
||||
scriptPubKeyBuffer = coerceBuffer(scriptPubKeyBuffer)
|
||||
|
||||
return Script.fromChunks([].concat(
|
||||
scriptSigChunks,
|
||||
scriptPubKey
|
||||
)).buffer
|
||||
return Script.compile([].concat(
|
||||
scriptSig,
|
||||
scriptPubKeyBuffer
|
||||
))
|
||||
}
|
||||
|
||||
// OP_0 [signatures ...]
|
||||
function multisigInput (signatures, scriptPubKey) {
|
||||
if (scriptPubKey) {
|
||||
if (!isMultisigOutput(scriptPubKey)) throw new Error('Expected multisig scriptPubKey')
|
||||
scriptPubKey = Script.fromBuffer(scriptPubKey)
|
||||
scriptPubKey = coerceChunks(scriptPubKey)
|
||||
|
||||
var mOp = scriptPubKey.chunks[0]
|
||||
var nOp = scriptPubKey.chunks[scriptPubKey.chunks.length - 2]
|
||||
var mOp = scriptPubKey[0]
|
||||
var nOp = scriptPubKey[scriptPubKey.length - 2]
|
||||
var m = mOp - (ops.OP_1 - 1)
|
||||
var n = nOp - (ops.OP_1 - 1)
|
||||
|
||||
|
|
@ -281,11 +262,11 @@ function multisigInput (signatures, scriptPubKey) {
|
|||
if (signatures.length > n) throw new Error('Too many signatures provided')
|
||||
}
|
||||
|
||||
return Script.fromChunks([].concat(ops.OP_0, signatures)).buffer
|
||||
return Script.compile([].concat(ops.OP_0, signatures))
|
||||
}
|
||||
|
||||
function nullDataOutput (data) {
|
||||
return Script.fromChunks([ops.OP_RETURN, data]).buffer
|
||||
return Script.compile([ops.OP_RETURN, data])
|
||||
}
|
||||
|
||||
module.exports = {
|
||||
|
|
|
|||
|
|
@ -193,7 +193,9 @@ Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashT
|
|||
|
||||
// in case concatenating two scripts ends up with two codeseparators,
|
||||
// or an extra one at the end, this prevents all those possible incompatibilities.
|
||||
var hashScript = Script.fromBuffer(prevOutScript).without(opcodes.OP_CODESEPARATOR).buffer
|
||||
var hashScript = Script.compile(Script.decompile(prevOutScript).filter(function (x) {
|
||||
return x !== opcodes.OP_CODESEPARATOR
|
||||
}))
|
||||
var i
|
||||
|
||||
// blank out other inputs' signatures
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@ var Transaction = require('./transaction')
|
|||
function extractInput (txIn) {
|
||||
var redeemScript
|
||||
var scriptSig = txIn.script
|
||||
var scriptSigChunks = Script.fromBuffer(scriptSig).chunks
|
||||
var scriptSigChunks = Script.decompile(scriptSig)
|
||||
|
||||
var prevOutScript
|
||||
var prevOutType = scripts.classifyInput(scriptSig, true)
|
||||
|
|
@ -24,7 +24,7 @@ function extractInput (txIn) {
|
|||
redeemScript = scriptSigChunks.slice(-1)[0]
|
||||
prevOutScript = scripts.scriptHashOutput(bcrypto.hash160(redeemScript))
|
||||
|
||||
scriptSig = Script.fromChunks(scriptSigChunks.slice(0, -1)).buffer
|
||||
scriptSig = Script.compile(scriptSigChunks.slice(0, -1))
|
||||
scriptSigChunks = scriptSigChunks.slice(0, -1)
|
||||
|
||||
scriptType = scripts.classifyInput(scriptSig, true)
|
||||
|
|
@ -51,7 +51,7 @@ function extractInput (txIn) {
|
|||
signatures = [parsed.signature]
|
||||
|
||||
if (redeemScript) {
|
||||
pubKeys = Script.fromBuffer(redeemScript).chunks.slice(0, 1)
|
||||
pubKeys = Script.decompile(redeemScript).slice(0, 1)
|
||||
}
|
||||
|
||||
break
|
||||
|
|
@ -67,7 +67,7 @@ function extractInput (txIn) {
|
|||
})
|
||||
|
||||
if (redeemScript) {
|
||||
pubKeys = Script.fromBuffer(redeemScript).chunks.slice(1, -2)
|
||||
pubKeys = Script.decompile(redeemScript).slice(1, -2)
|
||||
}
|
||||
|
||||
break
|
||||
|
|
@ -142,8 +142,8 @@ TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOu
|
|||
|
||||
var input = {}
|
||||
if (prevOutScript) {
|
||||
var prevOutType = scripts.classifyOutput(prevOutScript)
|
||||
var prevOutScriptChunks = Script.fromBuffer(prevOutScript).chunks
|
||||
var prevOutScriptChunks = Script.decompile(prevOutScript)
|
||||
var prevOutType = scripts.classifyOutput(prevOutScriptChunks)
|
||||
|
||||
// if we can, extract pubKey information
|
||||
switch (prevOutType) {
|
||||
|
|
@ -313,14 +313,14 @@ TransactionBuilder.prototype.sign = function (index, keyPair, redeemScript, hash
|
|||
if (input.prevOutScript) {
|
||||
if (input.prevOutType !== 'scripthash') throw new Error('PrevOutScript must be P2SH')
|
||||
|
||||
var scriptHash = Script.fromBuffer(input.prevOutScript).chunks[1]
|
||||
var scriptHash = Script.decompile(input.prevOutScript)[1]
|
||||
if (!bufferutils.equal(scriptHash, bcrypto.hash160(redeemScript))) throw new Error('RedeemScript does not match ' + scriptHash.toString('hex'))
|
||||
}
|
||||
|
||||
var scriptType = scripts.classifyOutput(redeemScript)
|
||||
if (!canSignTypes[scriptType]) throw new Error('RedeemScript not supported (' + scriptType + ')')
|
||||
|
||||
var redeemScriptChunks = Script.fromBuffer(redeemScript).chunks
|
||||
var redeemScriptChunks = Script.decompile(redeemScript)
|
||||
var pubKeys = []
|
||||
switch (scriptType) {
|
||||
case 'multisig':
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@ describe('Address', function () {
|
|||
describe('fromOutputScript', function () {
|
||||
fixtures.valid.forEach(function (f) {
|
||||
it('parses ' + f.script.slice(0, 30) + '... (' + f.network + ')', function () {
|
||||
var script = Script.fromASM(f.script).buffer
|
||||
var script = Script.fromASM(f.script)
|
||||
var address = Address.fromOutputScript(script, networks[f.network])
|
||||
|
||||
assert.strictEqual(address, f.base58check)
|
||||
|
|
@ -40,7 +40,7 @@ describe('Address', function () {
|
|||
|
||||
fixtures.invalid.fromOutputScript.forEach(function (f) {
|
||||
it('throws when ' + f.script.slice(0, 30) + '... ' + f.exception, function () {
|
||||
var script = Script.fromASM(f.script).buffer
|
||||
var script = Script.fromASM(f.script)
|
||||
|
||||
assert.throws(function () {
|
||||
Address.fromOutputScript(script)
|
||||
|
|
@ -66,7 +66,7 @@ describe('Address', function () {
|
|||
it('exports ' + f.script.slice(0, 30) + '... (' + f.network + ')', function () {
|
||||
var script = Address.toOutputScript(f.base58check, network)
|
||||
|
||||
assert.strictEqual(Script.fromBuffer(script).toASM(), f.script)
|
||||
assert.strictEqual(Script.toASM(script), f.script)
|
||||
})
|
||||
})
|
||||
|
||||
|
|
|
|||
|
|
@ -227,8 +227,9 @@ describe('Bitcoin-core', function () {
|
|||
var transaction = Transaction.fromHex(txHex)
|
||||
assert.strictEqual(transaction.toHex(), txHex)
|
||||
|
||||
var script = Script.fromHex(scriptHex).buffer
|
||||
assert.strictEqual(Script.fromBuffer(script).toHex(), scriptHex)
|
||||
var script = new Buffer(scriptHex, 'hex')
|
||||
var scriptChunks = Script.decompile(script)
|
||||
assert.strictEqual(Script.compile(scriptChunks).toString('hex'), scriptHex)
|
||||
|
||||
var hash = transaction.hashForSignature(inIndex, script, hashType)
|
||||
assert.deepEqual(hash, expectedHash)
|
||||
|
|
|
|||
|
|
@ -2,30 +2,12 @@
|
|||
/* eslint-disable no-new */
|
||||
|
||||
var assert = require('assert')
|
||||
var opcodes = require('../src/opcodes')
|
||||
|
||||
var Script = require('../src/script')
|
||||
var OPS = require('../src/opcodes')
|
||||
|
||||
var fixtures = require('./fixtures/script.json')
|
||||
|
||||
describe('Script', function () {
|
||||
describe('constructor', function () {
|
||||
it('accepts valid parameters', function () {
|
||||
var buffer = new Buffer([1])
|
||||
var chunks = [1]
|
||||
var script = new Script(buffer, chunks)
|
||||
|
||||
assert.strictEqual(script.buffer, buffer)
|
||||
assert.strictEqual(script.chunks, chunks)
|
||||
})
|
||||
|
||||
it('throws an error when input is not an array', function () {
|
||||
assert.throws(function () {
|
||||
new Script({})
|
||||
}, /Expected Buffer, got/)
|
||||
})
|
||||
})
|
||||
|
||||
describe('fromASM/toASM', function () {
|
||||
fixtures.valid.forEach(function (f) {
|
||||
if (!f.asm) return
|
||||
|
|
@ -33,53 +15,23 @@ describe('Script', function () {
|
|||
it('decodes/encodes ' + f.description, function () {
|
||||
var script = Script.fromASM(f.asm)
|
||||
|
||||
assert.strictEqual(script.toASM(), f.asm)
|
||||
assert.strictEqual(script.buffer.toString('hex'), f.hex)
|
||||
assert.strictEqual(Script.toASM(script), f.asm)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
||||
describe('fromHex/toHex', function () {
|
||||
fixtures.valid.forEach(function (f) {
|
||||
it('decodes/encodes ' + f.description, function () {
|
||||
var script = Script.fromHex(f.hex)
|
||||
|
||||
assert.strictEqual(script.toASM(), f.asm)
|
||||
assert.strictEqual(script.buffer.toString('hex'), f.hex)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
||||
describe('fromChunks', function () {
|
||||
describe('compile', function () {
|
||||
it('should match expected behaviour', function () {
|
||||
var hash = new Buffer(32)
|
||||
hash.fill(0)
|
||||
|
||||
var script = Script.fromChunks([
|
||||
opcodes.OP_HASH160,
|
||||
var script = Script.compile([
|
||||
OPS.OP_HASH160,
|
||||
hash,
|
||||
opcodes.OP_EQUAL
|
||||
OPS.OP_EQUAL
|
||||
])
|
||||
|
||||
assert.strictEqual(script.buffer.toString('hex'), 'a920000000000000000000000000000000000000000000000000000000000000000087')
|
||||
})
|
||||
})
|
||||
|
||||
describe('without', function () {
|
||||
var hex = 'a914e8c300c87986efa94c37c0519929019ef86eb5b487'
|
||||
var script = Script.fromHex(hex)
|
||||
|
||||
it('should return a script without the given value', function () {
|
||||
var subScript = script.without(opcodes.OP_HASH160)
|
||||
|
||||
assert.strictEqual(subScript.buffer.toString('hex'), '14e8c300c87986efa94c37c0519929019ef86eb5b487')
|
||||
})
|
||||
|
||||
it('shouldnt mutate the original script', function () {
|
||||
var subScript = script.without(opcodes.OP_EQUAL)
|
||||
|
||||
assert.notEqual(subScript.buffer.toString('hex'), hex)
|
||||
assert.strictEqual(script.buffer.toString('hex'), hex)
|
||||
assert.strictEqual(script.toString('hex'), 'a920000000000000000000000000000000000000000000000000000000000000000087')
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
|
|||
|
|
@ -19,7 +19,7 @@ describe('Scripts', function () {
|
|||
if (!f.scriptSig) return
|
||||
|
||||
it('classifies ' + f.scriptSig + ' as ' + f.type, function () {
|
||||
var script = Script.fromASM(f.scriptSig).buffer
|
||||
var script = Script.fromASM(f.scriptSig)
|
||||
var type = scripts.classifyInput(script)
|
||||
|
||||
assert.strictEqual(type, f.type)
|
||||
|
|
@ -31,7 +31,7 @@ describe('Scripts', function () {
|
|||
if (!f.typeIncomplete) return
|
||||
|
||||
it('classifies incomplete ' + f.scriptSig + ' as ' + f.typeIncomplete, function () {
|
||||
var script = Script.fromASM(f.scriptSig).buffer
|
||||
var script = Script.fromASM(f.scriptSig)
|
||||
var type = scripts.classifyInput(script, true)
|
||||
|
||||
assert.strictEqual(type, f.typeIncomplete)
|
||||
|
|
@ -44,7 +44,7 @@ describe('Scripts', function () {
|
|||
if (!f.scriptPubKey) return
|
||||
|
||||
it('classifies ' + f.scriptPubKey + ' as ' + f.type, function () {
|
||||
var script = Script.fromASM(f.scriptPubKey).buffer
|
||||
var script = Script.fromASM(f.scriptPubKey)
|
||||
var type = scripts.classifyOutput(script)
|
||||
|
||||
assert.strictEqual(type, f.type)
|
||||
|
|
@ -67,9 +67,9 @@ describe('Scripts', function () {
|
|||
var script
|
||||
|
||||
if (f.scriptSig) {
|
||||
script = Script.fromASM(f.scriptSig).buffer
|
||||
script = Script.fromASM(f.scriptSig)
|
||||
} else {
|
||||
script = Script.fromHex(f.scriptSigHex).buffer
|
||||
script = Script.fromHex(f.scriptSigHex)
|
||||
}
|
||||
|
||||
it('returns ' + expected + ' for ' + f.scriptSig, function () {
|
||||
|
|
@ -94,9 +94,9 @@ describe('Scripts', function () {
|
|||
var script
|
||||
|
||||
if (f.scriptSig) {
|
||||
script = Script.fromASM(f.scriptSig).buffer
|
||||
script = Script.fromASM(f.scriptSig)
|
||||
} else {
|
||||
script = Script.fromHex(f.scriptSigHex).buffer
|
||||
script = Script.fromHex(f.scriptSigHex)
|
||||
}
|
||||
|
||||
assert.strictEqual(inputFn(script), false)
|
||||
|
|
@ -111,7 +111,7 @@ describe('Scripts', function () {
|
|||
|
||||
if (outputFn && f.scriptPubKey) {
|
||||
it('returns ' + expected + ' for ' + f.scriptPubKey, function () {
|
||||
var script = Script.fromASM(f.scriptPubKey).buffer
|
||||
var script = Script.fromASM(f.scriptPubKey)
|
||||
|
||||
assert.strictEqual(outputFn(script), expected)
|
||||
})
|
||||
|
|
@ -123,7 +123,7 @@ describe('Scripts', function () {
|
|||
fixtures.invalid[outputFnName].forEach(function (f) {
|
||||
if (outputFn && f.scriptPubKey) {
|
||||
it('returns false for ' + f.description + ' (' + f.scriptPubKey + ')', function () {
|
||||
var script = Script.fromASM(f.scriptPubKey).buffer
|
||||
var script = Script.fromASM(f.scriptPubKey)
|
||||
|
||||
assert.strictEqual(outputFn(script), false)
|
||||
})
|
||||
|
|
@ -140,7 +140,7 @@ describe('Scripts', function () {
|
|||
var signature = new Buffer(f.signature, 'hex')
|
||||
|
||||
var scriptSig = scripts.pubKeyInput(signature)
|
||||
assert.strictEqual(Script.fromBuffer(scriptSig).toASM(), f.scriptSig)
|
||||
assert.strictEqual(Script.toASM(scriptSig), f.scriptSig)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -152,7 +152,8 @@ describe('Scripts', function () {
|
|||
it('returns ' + f.scriptPubKey, function () {
|
||||
var pubKey = new Buffer(f.pubKey, 'hex')
|
||||
var scriptPubKey = scripts.pubKeyOutput(pubKey)
|
||||
assert.strictEqual(Script.fromBuffer(scriptPubKey).toASM(), f.scriptPubKey)
|
||||
|
||||
assert.strictEqual(Script.toASM(scriptPubKey), f.scriptPubKey)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -167,7 +168,7 @@ describe('Scripts', function () {
|
|||
var signature = new Buffer(f.signature, 'hex')
|
||||
|
||||
var scriptSig = scripts.pubKeyHashInput(signature, pubKey)
|
||||
assert.strictEqual(Script.fromBuffer(scriptSig).toASM(), f.scriptSig)
|
||||
assert.strictEqual(Script.toASM(scriptSig), f.scriptSig)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -181,7 +182,7 @@ describe('Scripts', function () {
|
|||
|
||||
it('returns ' + f.scriptPubKey, function () {
|
||||
var scriptPubKey = scripts.pubKeyHashOutput(pubKeyHash)
|
||||
assert.strictEqual(Script.fromBuffer(scriptPubKey).toASM(), f.scriptPubKey)
|
||||
assert.strictEqual(Script.toASM(scriptPubKey), f.scriptPubKey)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -196,12 +197,12 @@ describe('Scripts', function () {
|
|||
})
|
||||
|
||||
var scriptSig = scripts.multisigInput(signatures)
|
||||
assert.strictEqual(Script.fromBuffer(scriptSig).toASM(), f.scriptSig)
|
||||
assert.strictEqual(Script.toASM(scriptSig), f.scriptSig)
|
||||
})
|
||||
})
|
||||
|
||||
fixtures.invalid.multisigInput.forEach(function (f) {
|
||||
var scriptPubKey = Script.fromASM(f.scriptPubKey).buffer
|
||||
var scriptPubKey = Script.fromASM(f.scriptPubKey)
|
||||
|
||||
it('throws on ' + f.exception, function () {
|
||||
var signatures = f.signatures.map(function (signature) {
|
||||
|
|
@ -223,7 +224,7 @@ describe('Scripts', function () {
|
|||
var scriptPubKey = scripts.multisigOutput(pubKeys.length, pubKeys)
|
||||
|
||||
it('returns ' + f.scriptPubKey, function () {
|
||||
assert.strictEqual(Script.fromBuffer(scriptPubKey).toASM(), f.scriptPubKey)
|
||||
assert.strictEqual(Script.toASM(scriptPubKey), f.scriptPubKey)
|
||||
})
|
||||
})
|
||||
|
||||
|
|
@ -244,16 +245,17 @@ describe('Scripts', function () {
|
|||
fixtures.valid.forEach(function (f) {
|
||||
if (f.type !== 'scripthash') return
|
||||
|
||||
var redeemScript = Script.fromASM(f.redeemScript).buffer
|
||||
var redeemScriptSig = Script.fromASM(f.redeemScriptSig).buffer
|
||||
var redeemScript = Script.fromASM(f.redeemScript)
|
||||
var redeemScriptSig = Script.fromASM(f.redeemScriptSig)
|
||||
|
||||
it('returns ' + f.scriptSig, function () {
|
||||
var scriptSig = scripts.scriptHashInput(redeemScriptSig, redeemScript)
|
||||
|
||||
if (f.scriptSig) {
|
||||
assert.strictEqual(Script.fromBuffer(scriptSig).toASM(), f.scriptSig)
|
||||
assert.strictEqual(Script.toASM(scriptSig), f.scriptSig)
|
||||
|
||||
} else {
|
||||
assert.strictEqual(Script.fromBuffer(scriptSig).toHex(), f.scriptSigHex)
|
||||
assert.strictEqual(scriptSig.toString('hex'), f.scriptSigHex)
|
||||
}
|
||||
})
|
||||
})
|
||||
|
|
@ -265,10 +267,10 @@ describe('Scripts', function () {
|
|||
if (!f.scriptPubKey) return
|
||||
|
||||
it('returns ' + f.scriptPubKey, function () {
|
||||
var redeemScript = Script.fromASM(f.redeemScript).buffer
|
||||
var redeemScript = Script.compile(Script.fromASM(f.redeemScript))
|
||||
var scriptPubKey = scripts.scriptHashOutput(bcrypto.hash160(redeemScript))
|
||||
|
||||
assert.strictEqual(Script.fromBuffer(scriptPubKey).toASM(), f.scriptPubKey)
|
||||
assert.strictEqual(Script.toASM(scriptPubKey), f.scriptPubKey)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -281,7 +283,7 @@ describe('Scripts', function () {
|
|||
var scriptPubKey = scripts.nullDataOutput(data)
|
||||
|
||||
it('returns ' + f.scriptPubKey, function () {
|
||||
assert.strictEqual(Script.fromBuffer(scriptPubKey).toASM(), f.scriptPubKey)
|
||||
assert.strictEqual(Script.toASM(scriptPubKey), f.scriptPubKey)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
|
|||
|
|
@ -20,8 +20,9 @@ describe('Transaction', function () {
|
|||
if (txIn.data) {
|
||||
var data = new Buffer(txIn.data, 'hex')
|
||||
script = data
|
||||
|
||||
} else if (txIn.script) {
|
||||
script = Script.fromASM(txIn.script).buffer
|
||||
script = Script.compile(Script.fromASM(txIn.script))
|
||||
}
|
||||
|
||||
tx.addInput(txHash, txIn.index, txIn.sequence, script)
|
||||
|
|
@ -33,8 +34,9 @@ describe('Transaction', function () {
|
|||
if (txOut.data) {
|
||||
var data = new Buffer(txOut.data, 'hex')
|
||||
script = data
|
||||
|
||||
} else if (txOut.script) {
|
||||
script = Script.fromASM(txOut.script).buffer
|
||||
script = Script.compile(Script.fromASM(txOut.script))
|
||||
}
|
||||
|
||||
tx.addOutput(script, txOut.value)
|
||||
|
|
|
|||
|
|
@ -22,14 +22,14 @@ function construct (f, sign) {
|
|||
var prevTxScript
|
||||
|
||||
if (input.prevTxScript) {
|
||||
prevTxScript = Script.fromASM(input.prevTxScript).buffer
|
||||
prevTxScript = Script.compile(Script.fromASM(input.prevTxScript))
|
||||
}
|
||||
|
||||
txb.addInput(input.txId, input.vout, input.sequence, prevTxScript)
|
||||
})
|
||||
|
||||
f.outputs.forEach(function (output) {
|
||||
var script = Script.fromASM(output.script).buffer
|
||||
var script = Script.compile(Script.fromASM(output.script))
|
||||
|
||||
txb.addOutput(script, output.value)
|
||||
})
|
||||
|
|
@ -41,7 +41,7 @@ function construct (f, sign) {
|
|||
var redeemScript
|
||||
|
||||
if (sign.redeemScript) {
|
||||
redeemScript = Script.fromASM(sign.redeemScript).buffer
|
||||
redeemScript = Script.compile(Script.fromASM(sign.redeemScript))
|
||||
}
|
||||
|
||||
txb.sign(index, keyPair, redeemScript, sign.hashType)
|
||||
|
|
@ -200,7 +200,7 @@ describe('TransactionBuilder', function () {
|
|||
var redeemScript
|
||||
|
||||
if (sign.redeemScript) {
|
||||
redeemScript = Script.fromASM(sign.redeemScript).buffer
|
||||
redeemScript = Script.compile(Script.fromASM(sign.redeemScript))
|
||||
}
|
||||
|
||||
if (!sign.throws) {
|
||||
|
|
@ -262,7 +262,7 @@ describe('TransactionBuilder', function () {
|
|||
var network = NETWORKS[f.network]
|
||||
|
||||
f.inputs.forEach(function (input, i) {
|
||||
var redeemScript = Script.fromASM(input.redeemScript).buffer
|
||||
var redeemScript = Script.compile(Script.fromASM(input.redeemScript))
|
||||
|
||||
input.signs.forEach(function (sign) {
|
||||
// rebuild the transaction each-time after the first
|
||||
|
|
@ -272,11 +272,11 @@ describe('TransactionBuilder', function () {
|
|||
var scriptSig = tx.ins[i].script
|
||||
|
||||
// ignore OP_0 on the front, ignore redeemScript
|
||||
var signatures = Script.fromBuffer(scriptSig).chunks.slice(1, -1).filter(function (x) { return x !== ops.OP_0 })
|
||||
var signatures = Script.decompile(scriptSig).slice(1, -1).filter(function (x) { return x !== ops.OP_0 })
|
||||
|
||||
// rebuild/replace the scriptSig without them
|
||||
var replacement = scripts.scriptHashInput(scripts.multisigInput(signatures), redeemScript)
|
||||
assert.strictEqual(Script.fromBuffer(replacement).toASM(), sign.scriptSigFiltered)
|
||||
assert.strictEqual(Script.toASM(replacement), sign.scriptSigFiltered)
|
||||
|
||||
tx.ins[i].script = replacement
|
||||
}
|
||||
|
|
@ -292,7 +292,7 @@ describe('TransactionBuilder', function () {
|
|||
tx = txb.buildIncomplete()
|
||||
|
||||
// now verify the serialized scriptSig is as expected
|
||||
assert.strictEqual(Script.fromBuffer(tx.ins[i].script).toASM(), sign.scriptSig)
|
||||
assert.strictEqual(Script.toASM(tx.ins[i].script), sign.scriptSig)
|
||||
})
|
||||
})
|
||||
|
||||
|
|
@ -309,7 +309,7 @@ describe('TransactionBuilder', function () {
|
|||
|
||||
txb = TransactionBuilder.fromTransaction(lameTx, network)
|
||||
|
||||
var redeemScript = Script.fromASM('OP_2 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 04c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a 04f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9388f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e672 OP_3 OP_CHECKMULTISIG').buffer
|
||||
var redeemScript = Script.compile(Script.fromASM('OP_2 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 04c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a 04f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9388f7b0f632de8140fe337e62a37f3566500a99934c2231b6cb9fd7584b8e672 OP_3 OP_CHECKMULTISIG'))
|
||||
|
||||
var keyPair = ECPair.fromWIF('91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgx3cTMqe', network)
|
||||
txb.sign(0, keyPair, redeemScript)
|
||||
|
|
|
|||
Loading…
Reference in a new issue