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Should be able to deal with incomplete P2SH/P2WSH inputs when allowIncomplete is set

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This commit is contained in:
Thomas Kerin 2017-08-01 22:12:34 +02:00 committed by Daniel Cousens
parent bc3aef5a92
commit 0b1c3bfbd9
2 changed files with 37 additions and 9 deletions
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14
src/transaction_builder.js
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@ -406,7 +406,7 @@ function buildInput (input, allowIncomplete) {
if (scriptType === bscript.types.P2SH) {
// We can remove this error later when we have a guarantee prepareInput
// rejects unsignable scripts - it MUST be signable at this point.
if (P2SH.indexOf(input.redeemScriptType) === -1) {
if (P2SH.indexOf(input.redeemScriptType) === -1 && !allowIncomplete) {
throw new Error('Impossible to sign this type')
}
p2sh = true
@ -422,17 +422,14 @@ function buildInput (input, allowIncomplete) {
witness = buildStack(bscript.types.P2PKH, input.signatures, input.pubKeys, allowIncomplete)
} else if (scriptType === bscript.types.P2WSH) {
// We can remove this check later
if (SIGNABLE.indexOf(input.witnessScriptType) !== -1) {
if (SIGNABLE.indexOf(input.witnessScriptType) === -1 && !allowIncomplete) {
throw new Error('Impossible to sign this type')
} else if (SIGNABLE.indexOf(input.witnessScriptType) !== -1) {
witness = buildStack(input.witnessScriptType, input.signatures, input.pubKeys, allowIncomplete)
witness.push(input.witnessScript)
} else {
// We can remove this error later when we have a guarantee prepareInput
// rejects unsignble scripts - it MUST be signable at this point.
throw new Error()
}
scriptType = input.witnessScriptType
}
}
// append redeemScript if necessary
if (p2sh) {
@ -578,7 +575,6 @@ TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options)
var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig)
this.inputs[vin] = input
this.prevTxMap[prevTxOut] = vin
return vin
}

32
test/transaction_builder.js
View file

@ -366,6 +366,38 @@ describe('TransactionBuilder', function () {
tx = tx.buildIncomplete()
assert(tx)
})
it('for incomplete P2SH with 0 signatures', function () {
var inp = Buffer.from('010000000173120703f67318aef51f7251272a6816d3f7523bb25e34b136d80be959391c100000000000ffffffff0100c817a80400000017a91471a8ec07ff69c6c4fee489184c462a9b1b9237488700000000', 'hex') // arbitrary P2SH input
var inpTx = Transaction.fromBuffer(inp)
var txb = new TransactionBuilder(NETWORKS.testnet)
txb.addInput(inpTx, 0)
txb.addOutput(baddress.toOutputScript('2NAkqp5xffoomp5RLBcakuGpZ12GU4twdz4', NETWORKS.testnet), 1e8) // arbitrary output
txb.buildIncomplete()
})
it('for incomplete P2WPKH with 0 signatures', function () {
var inp = Buffer.from('010000000173120703f67318aef51f7251272a6816d3f7523bb25e34b136d80be959391c100000000000ffffffff0100c817a8040000001600141a15805e1f4040c9f68ccc887fca2e63547d794b00000000', 'hex')
var inpTx = Transaction.fromBuffer(inp)
var txb = new TransactionBuilder(NETWORKS.testnet)
txb.addInput(inpTx, 0)
txb.addOutput(baddress.toOutputScript('2NAkqp5xffoomp5RLBcakuGpZ12GU4twdz4', NETWORKS.testnet), 1e8) // arbitrary output
txb.buildIncomplete()
})
it('for incomplete P2WSH with 0 signatures', function () {
var inpTx = Transaction.fromBuffer(Buffer.from('010000000173120703f67318aef51f7251272a6816d3f7523bb25e34b136d80be959391c100000000000ffffffff0100c817a80400000022002072df76fcc0b231b94bdf7d8c25d7eef4716597818d211e19ade7813bff7a250200000000', 'hex'))
var txb = new TransactionBuilder(NETWORKS.testnet)
txb.addInput(inpTx, 0)
txb.addOutput(baddress.toOutputScript('2NAkqp5xffoomp5RLBcakuGpZ12GU4twdz4', NETWORKS.testnet), 1e8) // arbitrary output
txb.buildIncomplete()
})
})
describe('multisig', function () {