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bitcore-lib-zcash
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added Script.getMultiSigInfo as easy helper to return information about a multisig script

This commit is contained in:
Ruben de Vries 2014-04-25 14:27:15 +02:00
parent 90a09805cb
commit e301a14657
2 changed files with 49 additions and 4 deletions
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24
lib/Script.js
View File

@ -187,6 +187,30 @@ Script.prototype.finishedMultiSig = function() {
return missing === 0;
};
Script.prototype.getMultiSigInfo = function() {
if (!this.isMultiSig()) {
throw new Error("Script.getMultiSigInfo(): Not a multiSig script.");
}
var nsigs = this.chunks[0] - 80; //see OP_2-OP_16;
var npks = this.chunks[this.chunks.length - 2] - 80; //see OP_2-OP_16;
var pks = [];
for (var i = 1; i < this.chunks.length - 2; i++) {
pks.push(this.chunks[i]);
}
if (pks.length != npks) {
throw new Error("Script.getMultiSigInfo(): Amount of PKs does not match what the script specifies.");
}
return {
nsigs : nsigs,
npks : npks,
pks : pks
}
};
Script.prototype.prependOp0 = function() {
var chunks = [0];
for (i in this.chunks) {

29
test/test.Script.js
View File

@ -34,6 +34,7 @@ describe('Script', function() {
var script = Script.createPubKeyHashOut(addr.payload());
script.isP2SH().should.be.false;
});
describe('#finishedMultiSig', function() {
it('should report that this scriptSig has finished being signed', function() {
var scriptHex = '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';
@ -53,6 +54,26 @@ describe('Script', function() {
});
});
describe('#getMultiSigInfo', function() {
it('should report the expected pubkeys', function() {
// using same test case as used in #createMultisig
// 3 of 5 multisig, unsorted
// test case generated with: bitcoind createmultisig 3 '["02c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae0", "02b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758", "0266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea","02ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e70", "02c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af793"]'
var scriptHex = '532102c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae02102b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758210266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea2102ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e702102c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af79355ae';
var scriptBuf = new Buffer(scriptHex, 'hex');
var script = new Script(scriptBuf);
var info = script.getMultiSigInfo();
info.nsigs.should.equal(3);
info.npks.should.equal(5);
info.pks.length.should.equal(info.npks);
info.pks.map(function(pk) {
testPubKeysHex.indexOf(pk.toString('hex')).should.not.equal(-1);
});
});
});
describe('prependOp0', function() {
it('should prepend the script with OP_0', function() {
var scriptHex = '483045022002da7fae9b98615115b7e9a4f1d9efd581463b670f91ec6404a14cb6fc9c4531022100ff449d72ba4e72deb4317267e2d38cec9fd2f58a9afa39c9f5e35f5678694ff50100004c695221033e4cc6b6ee8d8ce3335fed6d4917b2bbbac0f5743b2ced101ba036f95c51e59421023147410ce15e0a31c2bb970cdf01517266dc2c9182f5938636ed363cfd4cc3ae210342a3c8a4b20c7a122a011a07063df04e4c5ad520a1302a2a66e174fd9b0d4ea453ae';
@ -116,14 +137,14 @@ describe('Script', function() {
var pubs = testPubKeysHex.map( function(hex) {
return new Buffer(hex,'hex');
});
var s1 = Script.createMultisig(3,pubs, {noSorting: true});
// 3 of 5 multisig, unsorted
// test case generated with: bitcoind createmultisig 3 '["02c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae0", "02b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758", "0266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea","02ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e70", "02c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af793"]'
var s1 = Script.createMultisig(3,pubs, {noSorting: true});
s1.getBuffer().toString('hex').should.equal('532102c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae02102b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758210266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea2102ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e702102c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af79355ae');
var s2 = Script.createMultisig(3,pubs);
// 3 of 5 multisig, sorted
// test case generated with: bitcoind createmultisig 3 '["0266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea", "02b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f0758", "02c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae0", "02c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af793", "02ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e70"]'
var s2 = Script.createMultisig(3,pubs);
s2.getBuffer().toString('hex').should.equal('53210266dd7664e65958f3cc67bf92ad6243bc495df5ab56691719263977104b635bea2102b937d54b550a3afdc2819772822d25869495f9e588b56a0205617d80514f07582102c525d65d18be8fb36ab50a21bee02ac9fdc2c176fa18791ac664ea4b95572ae02102c8f63ad4822ef360b5c300f08488fa0fa24af2b2bebb6d6b602ca938ee5af7932102ee91377073b04d1d9d19597b81a7be3db6554bd7d16151cb5599a6107a589e7055ae');
});