BTCPrivate
/
bitcore
mirror of https://github.com/BTCPrivate/bitcore.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

ScriptInterpreter: convert verifyFull() to use callbacks

This commit is contained in:
Jeff Garzik 2013-08-21 08:42:31 -04:00
parent b6f05a3111
commit 3a29b6e0dd
1 changed files with 67 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

108
ScriptInterpreter.js
View File

@ -917,60 +917,86 @@ function spec(b) {
return si;
};
ScriptInterpreter.verifyFull =
function verifyFull(scriptSig, scriptPubKey, txTo, nIn, hashType, opts)
function verifyStep4(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy)
{
var si = new ScriptInterpreter();
var siCopy = new ScriptInterpreter();
var ok = true;
si.eval(scriptSig, txTo, nIn, hashType, function (err) {
if (err)
ok = false;
});
if (!ok)
return false;
if (siCopy.stack.length == 0) {
callback(null, false);
return;
}
callback(null, castBool(siCopy.stackBack()));
}
function verifyStep3(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy)
{
if (si.stack.length == 0) {
callback(null, false);
return;
}
if (castBool(si.stackBack()) == false) {
callback(null, false);
return;
}
// if not P2SH, we're done
if (!opts.verifyP2SH || !scriptPubKey.isP2SH()) {
callback(null, true);
return;
}
if (!scriptSig.isPushOnly()) {
callback(null, false);
return;
}
assert.notEqual(siCopy.length, 0);
var subscript = new Script(siCopy.stackPop());
ok = true;
siCopy.eval(subscript, txTo, nIn, hashType, function (err) {
if (err)
callback(err);
else
verifyStep4(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy);
});
}
function verifyStep2(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy)
{
if (opts.verifyP2SH) {
si.stack.forEach(function(item) {
siCopy.stack.push(item);
});
}
ok = true;
si.eval(scriptPubKey, txTo, nIn, hashType, function (err) {
if (err)
ok = false;
callback(err);
else
verifyStep3(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy);
});
if (!ok)
return false;
if (si.stack.length == 0)
return false;
}
if (castBool(si.stackBack()) == false)
return false;
ScriptInterpreter.verifyFull =
function verifyFull(scriptSig, scriptPubKey, txTo, nIn, hashType,
opts, callback)
{
var si = new ScriptInterpreter();
var siCopy = new ScriptInterpreter();
if (opts.verifyP2SH && scriptPubKey.isP2SH()) {
if (!scriptSig.isPushOnly())
return false;
assert.notEqual(siCopy.length, 0);
var subscript = new Script(siCopy.stackPop());
ok = true;
siCopy.eval(subscript, txTo, nIn, hashType, function (err) {
if (err)
ok = false;
});
if (!ok)
return false;
if (siCopy.stack.length == 0)
return false;
return castBool(siCopy.stackBack());
}
return true;
si.eval(scriptSig, txTo, nIn, hashType, function (err) {
if (err)
callback(err);
else
verifyStep2(scriptSig, scriptPubKey, txTo, nIn,
hashType, opts, callback, si, siCopy);
});
};
var checkSig = ScriptInterpreter.checkSig =