Aligning type naming with bitcoind and fixed pubkeyhash bug
This commit is contained in:
sidazhang
parent
97575e8f46
commit
aa43e98ac0
123
src/script.js
123
src/script.js
|
|
@ -96,6 +96,7 @@ Script.prototype.parse = function() {
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Compare the script to known templates of scriptPubKey.
|
||||
*
|
||||
|
|
@ -103,35 +104,97 @@ Script.prototype.parse = function() {
|
|||
* templates and return a string naming the detected type.
|
||||
*
|
||||
* Currently supported are:
|
||||
* Address:
|
||||
* Pubkeyhash
|
||||
* Paying to a Bitcoin address which is the hash of a pubkey.
|
||||
* OP_DUP OP_HASH160 [pubKeyHash] OP_EQUALVERIFY OP_CHECKSIG
|
||||
* Example:
|
||||
*
|
||||
* Pubkey:
|
||||
* Paying to a public key directly.
|
||||
* [pubKey] OP_CHECKSIG
|
||||
* Example: txid 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098
|
||||
*
|
||||
* Scripthash (P2SH)
|
||||
* Paying to an address which is the hash of a script
|
||||
* OP_HASH160 [Scripthash] OP_EQUAL
|
||||
* Example:
|
||||
*
|
||||
* Multisig
|
||||
* Paying to multiple pubkeys and require a number of the signatures
|
||||
* m [pubkey] [pubkey] [pubkey] n OP_CHECKMULTISIG
|
||||
* Example:
|
||||
*
|
||||
* Strange:
|
||||
* Any other script (no template matched).
|
||||
*/
|
||||
|
||||
// Below is the current standard set of out types
|
||||
/* const char* GetTxnOutputType(txnouttype t)
|
||||
{
|
||||
switch (t)
|
||||
{
|
||||
case TX_NONSTANDARD: return "nonstandard";
|
||||
case TX_PUBKEY: return "pubkey";
|
||||
case TX_PUBKEYHASH: return "pubkeyhash";
|
||||
case TX_SCRIPTHASH: return "scripthash";
|
||||
case TX_MULTISIG: return "multisig";
|
||||
case TX_NULL_DATA: return "nulldata";
|
||||
}
|
||||
return NULL;
|
||||
}*/
|
||||
|
||||
// https://github.com/bitcoin/bitcoin/blob/19e5b9d2dfcac4efadba636745485d9660fb1abe/src/script.cpp#L75
|
||||
|
||||
// supporting tx_null_data https://github.com/bitcoin/bitcoin/pull/3128
|
||||
// https://helloblock.io/mainnet/transactions/ebc9fa1196a59e192352d76c0f6e73167046b9d37b8302b6bb6968dfd279b767
|
||||
Script.prototype.getOutType = function() {
|
||||
if (this.chunks[this.chunks.length - 1] == Opcode.map.OP_EQUAL &&
|
||||
this.chunks[0] == Opcode.map.OP_HASH160 &&
|
||||
this.chunks.length == 3) {
|
||||
// Transfer to M-OF-N
|
||||
return 'P2SH'
|
||||
} else if (this.chunks.length == 5 &&
|
||||
this.chunks[0] == Opcode.map.OP_DUP &&
|
||||
this.chunks[1] == Opcode.map.OP_HASH160 &&
|
||||
this.chunks[3] == Opcode.map.OP_EQUALVERIFY &&
|
||||
this.chunks[4] == Opcode.map.OP_CHECKSIG) {
|
||||
if (this.chunks.length == 5 &&
|
||||
this.chunks[0] == Opcode.map.OP_DUP &&
|
||||
this.chunks[1] == Opcode.map.OP_HASH160 &&
|
||||
Array.isArray(this.chunks[2]) &&
|
||||
this.chunks[2].length === 20 &&
|
||||
this.chunks[3] == Opcode.map.OP_EQUALVERIFY &&
|
||||
this.chunks[4] == Opcode.map.OP_CHECKSIG) {
|
||||
// Transfer to Bitcoin address
|
||||
return 'Pubkey'
|
||||
return 'pubkeyhash';
|
||||
} else if (this.chunks.length === 2 &&
|
||||
Array.isArray(this.chunks[0]) &&
|
||||
this.chunks[1] === Opcode.map.OP_CHECKSIG) {
|
||||
// [pubkey] OP_CHECKSIG
|
||||
return 'pubkey';
|
||||
} else if (this.chunks[this.chunks.length - 1] == Opcode.map.OP_EQUAL &&
|
||||
this.chunks[0] == Opcode.map.OP_HASH160 &&
|
||||
Array.isArray(this.chunks[1]) &&
|
||||
this.chunks[1].length === 20 &&
|
||||
this.chunks.length == 3) {
|
||||
// Transfer to M-OF-N
|
||||
return 'scripthash';
|
||||
} else if (this.chunks.length > 3 &&
|
||||
// m is a smallint
|
||||
isSmallIntOp(this.chunks[0]) &&
|
||||
// n is a smallint
|
||||
isSmallIntOp(this.chunks[this.chunks.length - 2]) &&
|
||||
// n greater or equal to m
|
||||
this.chunks[0] <= this.chunks[this.chunks.length - 2] &&
|
||||
// n cannot be 0
|
||||
this.chunks[this.chunks.length - 2] !== Opcode.map.OP_0 &&
|
||||
// n is the size of chunk length minus 3 (m, n, OP_CHECKMULTISIG)
|
||||
this.chunks.length - 3 === this.chunks[this.chunks.length - 2] - Opcode.map.OP_RESERVED &&
|
||||
// last chunk is OP_CHECKMULTISIG
|
||||
this.chunks[this.chunks.length - 1] == Opcode.map.OP_CHECKMULTISIG) {
|
||||
return 'multisig'
|
||||
} else if (this.chunks[0] === Opcode.map.OP_RETURN) {
|
||||
return 'nulldata'
|
||||
} else {
|
||||
return 'Strange'
|
||||
return 'nonstandard';
|
||||
}
|
||||
}
|
||||
|
||||
function isSmallIntOp(opcode) {
|
||||
return ((opcode == Opcode.map.OP_0) ||
|
||||
((opcode >= Opcode.map.OP_1) && (opcode <= Opcode.map.OP_16)));
|
||||
};
|
||||
|
||||
/**
|
||||
* Returns the address corresponding to this output in hash160 form.
|
||||
* Assumes strange scripts are P2SH
|
||||
|
|
@ -139,11 +202,11 @@ Script.prototype.getOutType = function() {
|
|||
Script.prototype.toScriptHash = function() {
|
||||
var outType = this.getOutType()
|
||||
|
||||
if (outType == 'Pubkey') {
|
||||
if (outType == 'pubkeyhash') {
|
||||
return this.chunks[2]
|
||||
}
|
||||
|
||||
if (outType == 'P2SH') {
|
||||
if (outType == 'scripthash') {
|
||||
return crypto.hash160(this.buffer)
|
||||
}
|
||||
|
||||
|
|
@ -154,11 +217,11 @@ Script.prototype.toScriptHash = function() {
|
|||
Script.prototype.getToAddress = function() {
|
||||
var outType = this.getOutType()
|
||||
|
||||
if (outType == 'Pubkey') {
|
||||
if (outType == 'pubkeyhash') {
|
||||
return new Address(this.chunks[2])
|
||||
}
|
||||
|
||||
if (outType == 'P2SH') {
|
||||
if (outType == 'scripthash') {
|
||||
return new Address(this.chunks[1], 5)
|
||||
}
|
||||
|
||||
|
|
@ -197,23 +260,23 @@ Script.prototype.getFromAddress = function(){
|
|||
*/
|
||||
Script.prototype.getInType = function() {
|
||||
if (this.chunks.length == 1 &&
|
||||
Array.isArray(this.chunks[0])) {
|
||||
Array.isArray(this.chunks[0])) {
|
||||
// Direct IP to IP transactions only have the signature in their scriptSig.
|
||||
// TODO: We could also check that the length of the data is correct.
|
||||
return 'Pubkey'
|
||||
return 'pubkey';
|
||||
} else if (this.chunks.length == 2 &&
|
||||
Array.isArray(this.chunks[0]) &&
|
||||
Array.isArray(this.chunks[1])) {
|
||||
return 'Address'
|
||||
Array.isArray(this.chunks[0]) &&
|
||||
Array.isArray(this.chunks[1])) {
|
||||
return 'pubkeyhash';
|
||||
} else if (this.chunks[0] == Opcode.map.OP_0 &&
|
||||
this.chunks.slice(1).reduce(function(t, chunk, i) {
|
||||
return t && Array.isArray(chunk) && (chunk[0] == 48 || i == this.chunks.length - 1)
|
||||
}, true)) {
|
||||
return 'Multisig'
|
||||
this.chunks.slice(1).reduce(function(t, chunk, i) {
|
||||
return t && Array.isArray(chunk) && (chunk[0] == 48 || i == this.chunks.length - 1);
|
||||
}, true)) {
|
||||
return 'multisig';
|
||||
} else {
|
||||
return 'Strange'
|
||||
return 'nonstandard';
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Returns the affected public key for this input.
|
||||
|
|
@ -230,9 +293,9 @@ Script.prototype.getInType = function() {
|
|||
*/
|
||||
Script.prototype.simpleInPubKey = function() {
|
||||
switch (this.getInType()) {
|
||||
case 'Address':
|
||||
case 'pubkeyhash':
|
||||
return this.chunks[1]
|
||||
case 'Pubkey':
|
||||
case 'pubkey':
|
||||
// TODO: Theoretically, we could recover the pubkey from the sig here.
|
||||
// See https://bitcointalk.org/?topic=6430.0
|
||||
throw new Error('Script does not contain pubkey')
|
||||
|
|
|
|||
|
|
@ -33,19 +33,19 @@ describe('Script', function() {
|
|||
describe('getOutType', function() {
|
||||
it('works for p2sh', function() {
|
||||
var script = Script.fromHex(p2shScriptPubKey)
|
||||
assert.equal(script.getOutType(), 'P2SH')
|
||||
assert.equal(script.getOutType(), 'scripthash')
|
||||
})
|
||||
|
||||
it('works for pubkey', function() {
|
||||
it('works for pubkeyhash', function() {
|
||||
var script = Script.fromHex(pubkeyScriptPubKey)
|
||||
assert.equal(script.getOutType(), 'Pubkey')
|
||||
assert.equal(script.getOutType(), 'pubkeyhash')
|
||||
})
|
||||
})
|
||||
|
||||
describe('getInType', function() {
|
||||
it('works for address', function() {
|
||||
var script = Script.fromHex(addressScriptSig)
|
||||
assert.equal(script.getInType(), 'Address')
|
||||
assert.equal(script.getInType(), 'pubkeyhash')
|
||||
})
|
||||
})
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue