Matias Alejo Garcia
11 years ago
1 changed files with 205 additions and 0 deletions
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var bitcore = require('../bitcore'); |
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var priv = 'cTgGUrcro89yUtKeG6gHBAS14r3qp25KwTTxG9d4kEzcFxecuZDm'; |
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var amt = '0.005'; |
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var toAddress = 'myuAQcCc1REUgXGsCTiYhZvPPc3XxZ36G1'; |
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var changeAddressString = 'moDz3jEo9q7CxjBDjmb13sL4SKkgo2AACE'; |
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var feeString = '0.0001'; |
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var safeUnspent = [ |
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{ |
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address: "mqSjTad2TKbPcKQ3Jq4kgCkKatyN44UMgZ", |
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hash: "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc1", |
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vout: 1, |
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ts: 1394719301, |
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scriptPubKey: "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ac", |
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amount: 0.01, |
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confirmations: 2 |
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} |
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] |
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; |
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console.log('TX Data: BTC:' + amt + ' => '+ toAddress + ', change To:' + changeAddressString ) ; |
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console.log('Unspends:', safeUnspent); |
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var wk = new bitcore.WalletKey({ |
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network: bitcore.networks.testnet |
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}); |
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wk.fromObj({ priv: priv, }); |
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var wkObj= wk.storeObj(); |
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var keyPairs = [{ |
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key: wkObj.priv, |
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address: wkObj.addr, |
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}]; |
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console.log('KEY DB IS:', keyPairs); |
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var Address = bitcore.Address; |
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var Transaction = bitcore.Transaction; |
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var Script = bitcore.Script; |
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var nets = bitcore.networks; |
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var z = bitcore.bignum(0); |
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var amt = bitcore.util.parseValue(amt); |
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if(z.cmp(amt) === 0 ) |
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throw "spend amount must be greater than zero"; |
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if(!changeAddressString) |
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throw "change address was not provided"; |
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var fee = bitcore.util.parseValue(feeString || '0'); |
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var total = bitcore.bignum(0).add(amt).add(fee); |
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var address = new Address(toAddress); |
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var sendTx = new Transaction(); |
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var i; |
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var unspent = []; |
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var unspentAmt = bitcore.bignum(0); |
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for(i=0;i<safeUnspent.length;i++) { |
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unspent.push(safeUnspent[i]); |
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var amountSatoshiString = new bitcore.bignum(safeUnspent[i].amount * Math.pow(10,8)).toString(); |
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unspentAmt = unspentAmt.add(new bitcore.bignum(amountSatoshiString)); |
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// If > -1, we have enough to send the requested amount
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if(unspentAmt.cmp(total) > -1) { |
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break; |
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} |
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} |
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if(unspentAmt.cmp(total) < 0) { |
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throw "you do not have enough bitcoins to send this amount"; |
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} |
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var txobj = {}; |
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txobj.version = 1; |
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txobj.lock_time = 0; |
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txobj.ins = []; |
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txobj.outs = []; |
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for(i=0;i<unspent.length;i++) { |
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var txin = {}; |
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txin.s = bitcore.util.EMPTY_BUFFER; |
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txin.q = 0xffffffff; |
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var hash = new bitcore.Buffer(unspent[i].hash, 'hex'); |
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var hashReversed = bitcore.buffertools.reverse(hash); |
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var vout = parseInt(unspent[i].vout); |
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var voutBuf = new bitcore.Buffer(4); |
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voutBuf.writeUInt32LE(vout, 0); |
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txin.o = bitcore.Buffer.concat([hashReversed, voutBuf]); |
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txobj.ins.push(txin); |
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} |
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// This is not used really, but we keep it for the future.
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var version = address.version(); |
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var script; |
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if (version == nets.livenet.addressPubkey || version == nets.testnet.addressPubkey) |
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script = Script.createPubKeyHashOut(address.payload()); |
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else if (version == nets.livenet.addressScript || version == nets.testnet.addressScript) |
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script = Script.createP2SH(address.payload()); |
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else |
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throw new Error('invalid output address'); |
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var value = bitcore.util.bigIntToValue(amt); |
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var txout = { |
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v: value, |
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s: script.getBuffer(), |
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}; |
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txobj.outs.push(txout); |
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var remainder = unspentAmt.sub(total); |
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if(z.cmp(amt) !== 0 ) { |
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var changeAddress = new Address(changeAddressString); |
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var changeValue = bitcore.util.bigIntToValue(remainder); |
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// This is not used really, but we keep it for the future.
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var cversion = changeAddress.version(); |
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var cscript; |
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if (cversion == nets.livenet.addressPubkey || cversion == nets.testnet.addressPubkey) |
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cscript = Script.createPubKeyHashOut(changeAddress.payload()); |
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else if (cversion == nets.livenet.addressScript || cversion == nets.testnet.addressScript) |
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cscript = Script.createP2SH(changeAddress.payload()); |
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else |
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throw new Error('invalid change output address'); |
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var change = { |
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v: changeValue, |
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s: cscript.getBuffer(), |
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}; |
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txobj.outs.push(change); |
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} |
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var tx = new Transaction(txobj); |
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var anypay = false; |
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var l = unspent.length; |
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var allFound = l; |
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// Here will be the beginning of your signing for loop
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for(i=0;i < l;i++) { |
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var scriptBuf = new bitcore.Buffer(unspent[i].scriptPubKey, 'hex'); |
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var s = new Script(scriptBuf); |
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if (s.classify() !== Script.TX_PUBKEYHASH) { |
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throw new Error('input script type '+ s.getRawOutType() +' not supported yet'); |
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} |
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var txSigHash = tx.hashForSignature(s, i, |
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anypay ? Transaction.SIGHASH_ANYONECANPAY : Transaction.SIGHASH_ALL); |
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// txSigHash = bitcore.buffertools.reverse(txSigHash);
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for(var j=0;j<keyPairs.length;j++) { |
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var kp = keyPairs[j]; |
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if(kp.address === unspent[i].address) { |
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console.log('[wallet.js.409:address:] SIGNING With...', kp.key); //TODO
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console.log('[kk.js.168:txSigHash:] HASH TO SIGN: ',bitcore.buffertools.toHex(txSigHash)); //TODO
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var wKey = new bitcore.WalletKey({network: bitcore.networks.testnet}); |
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wKey.fromObj({ |
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priv: kp.key, |
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}); |
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console.log('[kk2.js.169] PRIV KEY', bitcore.buffertools.toHex(wKey.privKey.private )); //TODO
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console.log('[kk2.js.169] PUB KEY', bitcore.buffertools.toHex(wKey.privKey.public )); //TODO
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var sigRaw = wKey.privKey.signSync(txSigHash); |
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console.log('[kk.js.168:txSigHash:] SIGNATURE: ',bitcore.buffertools.toHex(sigRaw)); //TODO
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//VERIFY
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console.log('[kk.js.168:txSigHash:] VERIFY: ',wKey.privKey.verifySignatureSync(txSigHash, sigRaw)); //TODO
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var sigType = new bitcore.Buffer(1); |
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sigType[0] = anypay ? Transaction.SIGHASH_ANYONECANPAY : Transaction.SIGHASH_ALL; |
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var sig = bitcore.Buffer.concat([sigRaw, sigType]); |
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var scriptSig = new Script(); |
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scriptSig.chunks.push(sig); |
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scriptSig.chunks.push(wKey.privKey.public); |
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scriptSig.updateBuffer(); |
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tx.ins[i].s = scriptSig.getBuffer(); |
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allFound--; |
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break; |
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} |
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} |
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} |
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if (allFound !== 0) { |
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throw new Error('could not find priv key for some inputs'); |
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} |
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var txHex = tx.serialize().toString('hex'); |
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console.log('[kk.js.188:ret:] OUT IS: ', txHex); |
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////
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