LBRYCommunity/bitcoinjs-lib
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Some multisig changes

Browse source
This commit is contained in:
Ben Reeves 2012-02-05 16:04:45 +00:00
parent 6e44bdf229
commit b972e868c5
1 changed files with 62 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

80
src/script.js
View file

@ -94,25 +94,26 @@
* Strange:
* Any other script (no template matched).
*/
Script.prototype.getOutType = function ()
{
if (this.chunks.length == 5 &&
this.chunks[0] == OP_DUP &&
this.chunks[1] == OP_HASH160 &&
this.chunks[3] == OP_EQUALVERIFY &&
this.chunks[4] == OP_CHECKSIG) {
Script.prototype.getOutType = function () {
// Transfer to Bitcoin address
return 'Address';
} else if (this.chunks.length == 2 &&
this.chunks[1] == OP_CHECKSIG) {
// Transfer to IP address
return 'Pubkey';
} else {
return 'Strange';
}
};
if (this.chunks[this.chunks.length-1] == OP_CHECKMULTISIG && this.chunks[this.chunks.length-2] <= 3) {
// Transfer to M-OF-N
return 'Multisig';
} else if (this.chunks.length == 5 &&
this.chunks[0] == OP_DUP &&
this.chunks[1] == OP_HASH160 &&
this.chunks[3] == OP_EQUALVERIFY &&
this.chunks[4] == map.OP_CHECKSIG) {
// Transfer to Bitcoin address
return 'Address';
} else if (this.chunks.length == 2 &&
this.chunks[1] == OP_CHECKSIG) {
// Transfer to IP address
return 'Pubkey';
} else {
return 'Strange';
}
}
/**
* Returns the affected address hash for this output.
@ -284,6 +285,49 @@
script.writeOp(OP_CHECKSIG);
return script;
};
/**
* Exract bitcoin addresses from an output script
*/
Script.prototype.extractAddresses = function (addresses)
{
switch (this.getOutType()) {
case 'Address':
addresses.push(new Address(this.chunks[2]));
return 1;
case 'Pubkey':
addresses.push(new Address(Util.sha256ripe160(this.chunks[0])));
return 1;
case 'Multisig':
for (var i = 1; i < this.chunks.length-2; ++i) {
addresses.push(new Address(Util.sha256ripe160(this.chunks[i])));
}
return this.chunks[0] - OP_1 + 1;
default:
throw new Error("Encountered non-standard scriptPubKey");
}
};
/**
* Create an m-of-n output script
*/
Script.createMultiSigOutputScript = function (m, pubkeys)
{
var script = new Bitcoin.Script();
script.writeOp(OP_1 + m - 1);
for (var i = 0; i < pubkeys.length; ++i) {
script.writeBytes(pubkeys[i]);
}
script.writeOp(OP_1 + pubkeys.length - 1);
script.writeOp(OP_CHECKMULTISIG);
return script;
}
/**
* Create a standard payToPubKeyHash input.