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scripts: expose is* classifiers

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This commit is contained in:
Daniel Cousens 2014-11-28 12:50:37 +11:00
parent 62e86e0dc1
commit e4eb743cf9
3 changed files with 214 additions and 182 deletions
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27
src/scripts.js
View file

@ -246,15 +246,26 @@ function nullDataOutput(data) {
}
module.exports = {
classifyInput: classifyInput,
isCanonicalPubKey: isCanonicalPubKey,
isCanonicalSignature: isCanonicalSignature,
isPubKeyHashInput: isPubKeyHashInput,
isPubKeyHashOutput: isPubKeyHashOutput,
isPubKeyInput: isPubKeyInput,
isPubKeyOutput: isPubKeyOutput,
isScriptHashInput: isScriptHashInput,
isScriptHashOutput: isScriptHashOutput,
isMultisigInput: isMultisigInput,
isMultisigOutput: isMultisigOutput,
isNullDataOutput: isNullDataOutput,
classifyOutput: classifyOutput,
multisigInput: multisigInput,
multisigOutput: multisigOutput,
nullDataOutput: nullDataOutput,
pubKeyHashInput: pubKeyHashInput,
pubKeyHashOutput: pubKeyHashOutput,
pubKeyInput: pubKeyInput,
classifyInput: classifyInput,
pubKeyOutput: pubKeyOutput,
pubKeyHashOutput: pubKeyHashOutput,
scriptHashOutput: scriptHashOutput,
multisigOutput: multisigOutput,
pubKeyInput: pubKeyInput,
pubKeyHashInput: pubKeyHashInput,
scriptHashInput: scriptHashInput,
scriptHashOutput: scriptHashOutput
multisigInput: multisigInput,
nullDataOutput: nullDataOutput
}

133
test/fixtures/scripts.json vendored
View file

@ -56,78 +56,71 @@
}
],
"invalid": {
"classify": [
{
"description": "multisig output : OP_CHECKMULTISIG not found",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_HASH160"
},
{
"description": "multisig output : less than 4 chunks",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 OP_HASH160"
},
{
"description": "multisig output : m === 0",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "multisig output : m < OP_1",
"scriptPubKey": "OP_1NEGATE 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "multisig output : m > OP_16",
"scriptPubKey": "OP_NOP 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "multisig output : n === 0",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_0 OP_CHECKMULTISIG"
},
{
"description": "multisig output : n < OP_1",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_1NEGATE OP_CHECKMULTISIG"
},
{
"description": "multisig output : n > OP_16",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_NOP OP_CHECKMULTISIG"
},
{
"description": "multisig output : n < m",
"scriptPubKey": "OP_2 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_1 OP_CHECKMULTISIG"
},
{
"description": "multisig output : n < len(pubKeys)",
"scriptPubKey": "OP_2 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 024289801366bcee6172b771cf5a7f13aaecd237a0b9a1ff9d769cabc2e6b70a34 OP_2 OP_CHECKMULTISIG"
},
{
"description": "multisig output : non-canonical pubKey (bad length)",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798ffff OP_1 OP_CHECKMULTISIG"
},
"isPubKeyHashInput": [
{
"description": "pubKeyHash input : extraneous data",
"scriptSig": "304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801 02359c6e3f04cefbf089cf1d6670dc47c3fb4df68e2bad1fa5a369f9ce4b42bbd1 ffffffff"
},
}
],
"isScriptHashInput": [
{
"description": "scriptHash input : redeemScript not data",
"description": "redeemScript not data",
"scriptSig": "OP_0 304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801 3045022100ef253c1faa39e65115872519e5f0a33bbecf430c0f35cf562beabbad4da24d8d02201742be8ee49812a73adea3007c9641ce6725c32cd44ddb8e3a3af460015d140501 OP_RESERVED"
},
}
],
"isPubKeyInput": [
{
"description": "pubKey input : non-canonical signature",
"description": "non-canonical signature",
"scriptSig": "304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf7593ffffffffffffffff"
}
],
"multisig": [
"isMultisigOutput": [
{
"exception": "Not enough pubKeys provided",
"m": 4,
"pubKeys": [
"02ea1297665dd733d444f31ec2581020004892cdaaf3dd6c0107c615afb839785f",
"02fab2dea1458990793f56f42e4a47dbf35a12a351f26fa5d7e0cc7447eaafa21f",
"036c6802ce7e8113723dd92cdb852e492ebb157a871ca532c3cb9ed08248ff0e19"
],
"signatures": [
"304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801"
],
"scriptPubKey": true
"description": "OP_CHECKMULTISIG not found",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_HASH160"
},
{
"description": "less than 4 chunks",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 OP_HASH160"
},
{
"description": "m === 0",
"scriptPubKey": "OP_0 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "m < OP_1",
"scriptPubKey": "OP_1NEGATE 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "m > OP_16",
"scriptPubKey": "OP_NOP 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_2 OP_CHECKMULTISIG"
},
{
"description": "n === 0",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_0 OP_CHECKMULTISIG"
},
{
"description": "n < OP_1",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_1NEGATE OP_CHECKMULTISIG"
},
{
"description": "n > OP_16",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_NOP OP_CHECKMULTISIG"
},
{
"description": "n < m",
"scriptPubKey": "OP_2 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 OP_1 OP_CHECKMULTISIG"
},
{
"description": "n < len(pubKeys)",
"scriptPubKey": "OP_2 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 02b80011a883a0fd621ad46dfc405df1e74bf075cbaf700fd4aebef6e96f848340 024289801366bcee6172b771cf5a7f13aaecd237a0b9a1ff9d769cabc2e6b70a34 OP_2 OP_CHECKMULTISIG"
},
{
"description": "non-canonical pubKey (bad length)",
"scriptPubKey": "OP_1 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798ffff OP_1 OP_CHECKMULTISIG"
}
],
"multisigInput": [
{
"exception": "Not enough signatures provided",
"pubKeys": [
@ -136,8 +129,7 @@
],
"signatures": [
"304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801"
],
"scriptPubKey": false
]
},
{
"exception": "Too many signatures provided",
@ -149,8 +141,21 @@
"304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801",
"3045022100ef253c1faa39e65115872519e5f0a33bbecf430c0f35cf562beabbad4da24d8d02201742be8ee49812a73adea3007c9641ce6725c32cd44ddb8e3a3af460015d140501",
"3045022100ef253c1faa39e65115872519e5f0a33bbecf430c0f35cf562beabbad4da24d8d02201742be8ee49812a73adea3007c9641ce6725c32cd44ddb8e3a3af460015d140501"
]
}
],
"multisigOutput": [
{
"exception": "Not enough pubKeys provided",
"m": 4,
"pubKeys": [
"02ea1297665dd733d444f31ec2581020004892cdaaf3dd6c0107c615afb839785f",
"02fab2dea1458990793f56f42e4a47dbf35a12a351f26fa5d7e0cc7447eaafa21f",
"036c6802ce7e8113723dd92cdb852e492ebb157a871ca532c3cb9ed08248ff0e19"
],
"scriptPubKey": false
"signatures": [
"304402207515cf147d201f411092e6be5a64a6006f9308fad7b2a8fdaab22cd86ce764c202200974b8aca7bf51dbf54150d3884e1ae04f675637b926ec33bf75939446f6ca2801"
]
}
]
}

236
test/scripts.js
View file

@ -1,7 +1,6 @@
var assert = require('assert')
var scripts = require('../src/scripts')
var Address = require('../src/address')
var ECPubKey = require('../src/ecpubkey')
var Script = require('../src/script')
@ -19,17 +18,6 @@ describe('Scripts', function() {
assert.equal(type, f.type)
})
})
fixtures.invalid.classify.forEach(function(f) {
if (!f.scriptSig) return
it('returns nonstandard for ' + f.description, function() {
var script = Script.fromASM(f.scriptSig)
var type = scripts.classifyInput(script)
assert.equal(type, 'nonstandard')
})
})
})
describe('classifyOutput', function() {
@ -43,159 +31,187 @@ describe('Scripts', function() {
assert.equal(type, f.type)
})
})
})
fixtures.invalid.classify.forEach(function(f) {
if (!f.scriptPubKey) return
;['PubKey', 'PubKeyHash', 'ScriptHash', 'Multisig', 'NullData'].forEach(function(type) {
var inputFn = scripts['is' + type + 'Input']
var outputFn= scripts['is' + type + 'Output']
it('returns nonstandard for ' + f.description, function() {
var script = Script.fromASM(f.scriptPubKey)
var type = scripts.classifyOutput(script)
describe('is' + type + 'Input', function() {
fixtures.valid.forEach(function(f) {
var expected = type.toLowerCase() === f.type
assert.equal(type, 'nonstandard')
if (inputFn && f.scriptSig) {
it('returns ' + expected + ' for ' + f.scriptSig, function() {
var script = Script.fromASM(f.scriptSig)
assert.equal(inputFn(script), expected)
})
}
})
})
describe('is' + type + 'Output', function() {
fixtures.valid.forEach(function(f) {
var expected = type.toLowerCase() === f.type
if (outputFn && f.scriptPubKey) {
it('returns ' + expected + ' for ' + f.scriptPubKey, function() {
var script = Script.fromASM(f.scriptPubKey)
assert.equal(outputFn(script), expected)
})
}
})
})
})
describe('pubKey', function() {
describe('pubKeyInput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'pubkey') return
describe('input script', function() {
it('is generated correctly for ' + f.pubKey, function() {
var signature = new Buffer(f.signature, 'hex')
it('returns ' + f.scriptSig, function() {
var signature = new Buffer(f.signature, 'hex')
var scriptSig = scripts.pubKeyInput(signature)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
describe('output script', function() {
it('is generated correctly for ' + f.pubKey, function() {
var pubKey = ECPubKey.fromHex(f.pubKey)
var scriptPubKey = scripts.pubKeyOutput(pubKey)
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
var scriptSig = scripts.pubKeyInput(signature)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
})
describe('pubKeyHash', function() {
describe('pubKeyOutput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'pubkey') return
it('returns ' + f.scriptPubKey, function() {
var pubKey = ECPubKey.fromHex(f.pubKey)
var scriptPubKey = scripts.pubKeyOutput(pubKey)
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
})
})
describe('pubKeyHashInput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'pubkeyhash') return
var pubKey = ECPubKey.fromHex(f.pubKey)
it('returns ' + f.scriptSig, function() {
var signature = new Buffer(f.signature, 'hex')
var scriptSig = scripts.pubKeyHashInput(signature, pubKey)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
})
describe('pubKeyHashOutput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'pubkeyhash') return
var pubKey = ECPubKey.fromHex(f.pubKey)
var address = pubKey.getAddress()
describe('input script', function() {
it('is generated correctly for ' + address, function() {
var signature = new Buffer(f.signature, 'hex')
var scriptSig = scripts.pubKeyHashInput(signature, pubKey)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
describe('output script', function() {
it('is generated correctly for ' + address, function() {
var scriptPubKey = scripts.pubKeyHashOutput(address.hash)
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
it('returns ' + f.scriptPubKey, function() {
var scriptPubKey = scripts.pubKeyHashOutput(address.hash)
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
})
})
describe('multisig', function() {
describe('multisigInput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'multisig') return
it('returns ' + f.scriptSig, function() {
var signatures = f.signatures.map(function(signature) {
return new Buffer(signature, 'hex')
})
var scriptSig = scripts.multisigInput(signatures)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
fixtures.invalid.multisigInput.forEach(function(f) {
var pubKeys = f.pubKeys.map(ECPubKey.fromHex)
var scriptPubKey = scripts.multisigOutput(pubKeys.length, pubKeys)
it('throws on ' + f.exception, function() {
var signatures = f.signatures.map(function(signature) {
return new Buffer(signature, 'hex')
})
assert.throws(function() {
scripts.multisigInput(signatures, scriptPubKey)
}, new RegExp(f.exception))
})
})
})
describe('multisigOutput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'multisig') return
var pubKeys = f.pubKeys.map(ECPubKey.fromHex)
var scriptPubKey = scripts.multisigOutput(pubKeys.length, pubKeys)
describe('input script', function() {
it('is generated correctly for ' + f.scriptPubKey, function() {
var signatures = f.signatures.map(function(signature) {
return new Buffer(signature, 'hex')
})
var scriptSig = scripts.multisigInput(signatures)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
describe('output script', function() {
it('is generated correctly for ' + f.scriptPubKey, function() {
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
it('returns ' + f.scriptPubKey, function() {
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
})
fixtures.invalid.multisig.forEach(function(f) {
var pubKeys = f.pubKeys.map(ECPubKey.fromHex)
var scriptPubKey = scripts.multisigOutput(pubKeys.length, pubKeys)
fixtures.invalid.multisigOutput.forEach(function(f) {
var pubKeys = f.pubKeys.map(function(p) { return new Buffer(p, 'hex') })
if (f.scriptPubKey) {
describe('output script', function() {
it('throws on ' + f.exception, function() {
assert.throws(function() {
scripts.multisigOutput(f.m, pubKeys)
}, new RegExp(f.exception))
})
})
} else {
describe('input script', function() {
it('throws on ' + f.exception, function() {
var signatures = f.signatures.map(function(signature) {
return new Buffer(signature, 'hex')
})
assert.throws(function() {
scripts.multisigInput(signatures, scriptPubKey)
}, new RegExp(f.exception))
})
})
}
it('throws on ' + f.exception, function() {
assert.throws(function() {
scripts.multisigOutput(f.m, pubKeys)
}, new RegExp(f.exception))
})
})
})
describe('scripthash', function() {
describe('scriptHashInput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'scripthash') return
var redeemScript = Script.fromASM(f.redeemScript)
var redeemScriptSig = Script.fromASM(f.redeemScriptSig)
var address = Address.fromOutputScript(Script.fromASM(f.scriptPubKey))
it('returns ' + f.scriptSig, function() {
var scriptSig = scripts.scriptHashInput(redeemScriptSig, redeemScript)
describe('input script', function() {
it('is generated correctly for ' + address, function() {
var scriptSig = scripts.scriptHashInput(redeemScriptSig, redeemScript)
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
describe('output script', function() {
it('is generated correctly for ' + address, function() {
var scriptPubKey = scripts.scriptHashOutput(redeemScript.getHash())
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
assert.equal(scriptSig.toASM(), f.scriptSig)
})
})
})
describe('data', function() {
describe('scriptHashOutput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'scripthash') return
var redeemScript = Script.fromASM(f.redeemScript)
it('returns ' + f.scriptPubKey, function() {
var scriptPubKey = scripts.scriptHashOutput(redeemScript.getHash())
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
})
})
describe('nullDataOutput', function() {
fixtures.valid.forEach(function(f) {
if (f.type !== 'nulldata') return
var data = new Buffer(f.data, 'hex')
var scriptPubKey = scripts.nullDataOutput(data)
describe('output script', function() {
it('is generated correctly for ' + f.scriptPubKey, function() {
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
it('returns ' + f.scriptPubKey, function() {
assert.equal(scriptPubKey.toASM(), f.scriptPubKey)
})
})
})