LBRYCommunity/coinbin
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improve on addressDecode() function and merge with stealthDecode()

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This commit is contained in:
OutCast3k 2015-01-02 13:23:42 +00:00
parent ca9b1d4710
commit e5ff766cc0
2 changed files with 48 additions and 57 deletions
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98
js/coin.js
View file

@ -185,59 +185,55 @@
var back = bytes.slice(bytes.length-4);
var checksum = Crypto.SHA256(Crypto.SHA256(front, {asBytes: true}), {asBytes: true}).slice(0, 4);
if (checksum+"" == back+"") {
var o = front.slice(1);
o.version = front[0];
return o;
} else {
return false;
}
} catch(e) {
return false;
}
}
/* parse stealth address and return an object with the parts */
coinjs.stealthDecode = function(stealth){
try {
var bytes = coinjs.base58decode(stealth);
var front = bytes.slice(0, bytes.length-4);
var back = bytes.slice(bytes.length-4);
var checksum = Crypto.SHA256(Crypto.SHA256(front, {asBytes: true}), {asBytes: true}).slice(0, 4);
if (checksum+"" == back+"") {
var o = {};
o.bytes = front.slice(1);
o.valid = true;
o.version = front[0];
if(o.version==coinjs.pub){ // standard address
o.type = 'standard';
} else if (o.version==coinjs.multisig) { // multisig address
o.type = 'multisig';
} else if (o.version==coinjs.priv){ // wifkey
o.type = 'wifkey';
} else if (o.version==42) { // stealth address
o.type = 'stealth';
o.option = front[1];
if (o.option != 0) {
o.valid = false;
alert("Stealth Address option other than 0 is currently not supported!");
return false;
};
o.scankey = Crypto.util.bytesToHex(front.slice(2, 35));
o.n = front[35];
if (o.n > 1) {
o.valid = false;
alert("Stealth Multisig is currently not supported!");
return false;
};
if (o.version != 42) {
return false;
};
o.option = front[1];
if (o.option != 0) {
alert("Stealth Address option other than 0 is currently not supported!");
return false;
};
o.scankey = Crypto.util.bytesToHex(front.slice(2, 35));
o.n = front[35];
if (o.n > 1) {
alert("Stealth Multisig is currently not supported!");
return false;
};
o.spendkey = Crypto.util.bytesToHex(front.slice(36, 69));
o.m = front[69];
o.prefixlen = front[70];
if (o.prefixlen > 0) {
alert("Stealth Address Prefixes are currently not supported!");
return false;
};
o.prefix = front.slice(71)
o.spendkey = Crypto.util.bytesToHex(front.slice(36, 69));
o.m = front[69];
o.prefixlen = front[70];
if (o.prefixlen > 0) {
o.valid = false;
alert("Stealth Address Prefixes are currently not supported!");
return false;
};
o.prefix = front.slice(71);
} else { // everything else
o.type = 'other'; // address is still valid but unknown version
}
return o;
} else {
return false;
@ -473,12 +469,12 @@
var s = coinjs.script();
if(addr.version==5){ // multisig address
s.writeOp(169); //OP_HASH160
s.writeBytes(addr);
s.writeBytes(addr.bytes);
s.writeOp(135); //OP_EQUAL
} else { // regular address
s.writeOp(118); //OP_DUP
s.writeOp(169); //OP_HASH160
s.writeBytes(addr);
s.writeBytes(addr.bytes);
s.writeOp(136); //OP_EQUALVERIFY
s.writeOp(172); //OP_CHECKSIG
}
@ -491,7 +487,7 @@
var s = coinjs.script();
s.writeOp(118);//OP_DUP
s.writeOp(169);//OP_HASH160
s.writeBytes(addr);
s.writeBytes(addr.bytes);
s.writeOp(136);//OP_EQUALVERIFY
s.writeOp(172);//OP_CHECKSIG
return s;

7
js/coinbin.js
View file

@ -368,12 +368,7 @@ $(document).ready(function() {
var ad = coinjs.addressDecode(a)
if(((a!="") && (ad.version === 0 || ad.version === 5)) && $(".amount",o).val()!=""){ // address
tx.addoutput(a, $(".amount",o).val());
} else if (((a!="") && ad.version === 42) && $(".amount",o).val()!=""){ // stealth address
var stealth = coinjs.stealthDecode(a);
if (stealth == false) {
$(o).addClass('has-error');
return;
}
} else if ((((a!="") && ad.version === 42) && ad.valid==true) && $(".amount",o).val()!=""){ // stealth address
tx.addstealth(stealth, $(".amount",o).val());
} else if (((($("#opReturn").is(":checked")) && a.match(/^[a-f0-9]+$/ig)) && a.length<80) && (a.length%2)==0) { // data
tx.adddata(a);