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Merge pull request #268 from matiu/feature/addresss-fromscriptpubkey 

add new constructor to Address (fromScriptPubKey)
This commit is contained in:
Ryan X. Charles 2014-04-18 17:42:49 -03:00
parent 9771d8138d 5a1d572a8d
commit a0841638ee
2 changed files with 86 additions and 0 deletions
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43
lib/Address.js
View File

@ -47,6 +47,10 @@ Address.fromScript = function(script, network) {
if (!network) if (!network)
network = 'livenet'; network = 'livenet';
if (typeof script === 'string') {
script = new Script(new Buffer(script,'hex'));
}
var version = networks[network].P2SHVersion; var version = networks[network].P2SHVersion;
var buf = script.getBuffer(); var buf = script.getBuffer();
var hash = coinUtil.sha256ripe160(buf); var hash = coinUtil.sha256ripe160(buf);
@ -54,6 +58,45 @@ Address.fromScript = function(script, network) {
return new Address(version, hash); return new Address(version, hash);
}; };
//extract and address from scriptPubKey
Address.fromScriptPubKey = function(scriptPubKey, network) {
if (typeof scriptPubKey === 'string') {
scriptPubKey = new Script(new Buffer(scriptPubKey,'hex'));
}
if (!network)
network = 'livenet';
var ret=[], version;
var payload = scriptPubKey.capture();
if (payload) {
var txType = scriptPubKey.classify();
switch (txType) {
case Script.TX_PUBKEY:
payload[0] = coinUtil.sha256ripe160(payload[0]);
version = networks[network].addressVersion;
break;
case Script.TX_PUBKEYHASH:
version = networks[network].addressVersion;
break;
case Script.TX_MULTISIG:
version = networks[network].addressVersion;
for(var i in payload)
payload[i] = coinUtil.sha256ripe160(payload[i]);
break;
case Script.TX_SCRIPTHASH:
version = networks[network].P2SHVersion;
break;
}
for(var i in payload)
ret.push(new Address(version,payload[i]));
}
return ret;
};
Address.prototype.validate = function() { Address.prototype.validate = function() {
this.doAsBinary(function() { this.doAsBinary(function() {
Address.super(this, 'validate', arguments); Address.super(this, 'validate', arguments);

43
test/test.Address.js
View File

@ -119,6 +119,13 @@ describe('Address', function() {
var addr = Address.fromScript(script); var addr = Address.fromScript(script);
var addr2 = Address.fromPubKeys(mReq, pubKeys); var addr2 = Address.fromPubKeys(mReq, pubKeys);
addr.toString().should.equal(addr2.toString()); addr.toString().should.equal(addr2.toString());
// Same case, using HEX
var scriptHex = bitcore.Script.createMultisig(mReq, pubKeys).getBuffer().toString('hex');
var addrB = Address.fromScript(scriptHex);
var addr2B = Address.fromPubKeys(mReq, pubKeys);
addrB.toString().should.equal(addr2B.toString());
}); });
it('it should make this hand-crafted address', function() { it('it should make this hand-crafted address', function() {
@ -138,4 +145,40 @@ describe('Address', function() {
}); });
}); });
describe('#fromScriptPubKey', function() {
// All examples checked againt bitcoind decodescript
var cases = [
['76a91423b7530a00dd7951e11791c529389421c0b8d83b88ac', 'mimoZNLcP2rrMRgdeX5PSnR7AjCqQveZZ4'],
['a9147049be48e74a660157da3ed64569981592f7fa0587','2N3Ux1YTnt1ixofYvJfaabqZSj2MBF3jsmv'],
['76a914774e603bafb717bd3f070e68bbcccfd907c77d1388ac', 'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE'],
['76a914b00127584485a7cff0949ef0f6bc5575f06ce00d88ac', 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd'],
['532103bf025eb410407aec5a67c975ce222e363bb88c69bb1acce45d20d85602df2ec52103d76dd6d99127f4b733e772f0c0a09c573ac7e4d69b8bf50272292da2e093de2c2103dd9acd8dd1816c825d6b0739339c171ae2cb10efb53699680537865b07086e9b2102371cabbaf466c3a536034b4bda64ad515807bffd87488f44f93c2373d4d189c9210264cd444358f8d57f8637a7309f9736806f4883aebc4fe7da4bad1e4b37f2d12c55ae', [
"n4JAZc4cJimQbky5wxZUEDeAFZtGaZrjWK",
"msge5muNmBSRDn5nsaRcHCU6dg2zimA8wQ",
"mvz9MjocpyXdgXqRcZYazsdE8iThdvjdhk",
"miQGZ2gybQe7UvUQDBYsgcctUteij5pTpm",
"mu9kmhGrzREKsWaXUEUrsRLLMG4UMPy1LF"
]]
];
for(var i in cases){
var c=cases[i];
it('it should generate the right address', function(){
if (typeof c[1] === 'string') {
(new Address.fromScriptPubKey(c[0],'testnet')).toString().should.equal(c[1]);
var s = new bitcore.Script(new Buffer(c[0],'hex'));
(new Address.fromScriptPubKey(s,'testnet')).toString().should.equal(c[1]);
}
else {
var as=new Address.fromScriptPubKey(c[0],'testnet');
for(var j in as){
as[j].toString().should.equal(c[1][j]);
}
}
});
}
});
}); });