TX_MULTISIG support
This commit is contained in:
Matias Alejo Garcia
parent
5dd945f2b7
commit
2af6ab7650
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@ -553,15 +553,28 @@ Transaction.prototype.getSize = function getHash() {
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};
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Transaction.prototype.isComplete = function() {
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var l = this.ins.length;
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var ret = true;
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var l = this.ins.length;
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for (var i = 0; i < l; i++) {
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if (buffertools.compare(this.ins[i].s, util.EMPTY_BUFFER) === 0) {
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ret = false;
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break;
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var script = new Script(this.ins[i].s);
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// Multisig?
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if (!Buffer.isBuffer(script.chunks[0]) && script.chunks[0] ===0) {
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for (var i = 1; i < script.chunks.length; i++) {
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if (buffertools.compare(script.chunks[i], util.EMPTY_BUFFER) === 0){
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ret = false;
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break;
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}
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}
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}
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else {
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if (buffertools.compare(this.ins[i].s, util.EMPTY_BUFFER) === 0) {
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ret = false;
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break;
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}
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}
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};
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return ret;
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};
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@ -89,7 +89,7 @@ var Transaction = imports.Transaction || require('./Transaction');
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var FEE_PER_1000B_SAT = parseInt(0.0001 * util.COIN);
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function TransactionBuilder(opts) {
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var opts = opts || {};
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opts = opts || {};
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this.txobj = {};
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this.txobj.version = 1;
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this.txobj.lock_time = opts.lockTime || 0;
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@ -144,18 +144,29 @@ TransactionBuilder.prototype._setInputMap = function() {
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var l = this.selectedUtxos.length;
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for (var i = 0; i < l; i++) {
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var s = this.selectedUtxos[i];
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var utxo = this.selectedUtxos[i];
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var scriptBuf = new Buffer(utxo.scriptPubKey, 'hex');
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var scriptPubKey = new Script(scriptBuf);
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var scriptType = scriptPubKey.classify();
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if (scriptType === Script.TX_UNKNOWN)
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throw new Error('unkown output type at:' + i +
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' Type:' + scriptPubKey.getRawOutType());
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inputMap.push({
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address: s.address,
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scriptPubKey: s.scriptPubKey
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address: utxo.address, //TODO que pasa en multisig normal?
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scriptPubKeyHex: utxo.scriptPubKey,
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scriptPubKey: scriptPubKey,
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scriptType: scriptType,
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i: i,
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});
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}
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this.inputMap = inputMap;
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return this;
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};
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TransactionBuilder.prototype.getSelectedUnspent = function(neededAmountSat) {
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TransactionBuilder.prototype.getSelectedUnspent = function() {
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return this.selectedUtxos;
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};
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@ -360,14 +371,6 @@ TransactionBuilder._mapKeys = function(keys) {
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return walletKeyMap;
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};
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TransactionBuilder._checkSupportedScriptType = function (s) {
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if (s.classify() !== Script.TX_PUBKEYHASH) {
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throw new Error('scriptSig type:' + s.getRawOutType() +
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' not supported yet');
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}
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};
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TransactionBuilder._signHashAndVerify = function(wk, txSigHash) {
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var triesLeft = 10, sigRaw;
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@ -387,44 +390,208 @@ TransactionBuilder.prototype._checkTx = function() {
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throw new Error('tx is not defined');
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};
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TransactionBuilder.prototype._signPubKey = function(walletKeyMap, input, txSigHash) {
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if (this.tx.ins[input.i].s.length > 0) return {};
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var wk = walletKeyMap[input.address];
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if (!wk) return;
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var sigRaw = TransactionBuilder._signHashAndVerify(wk, txSigHash);
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var sigType = new Buffer(1);
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sigType[0] = this.signhash;
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var sig = 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.updateBuffer();
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return {isFullySigned: true, script: scriptSig.getBuffer()};
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};
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TransactionBuilder.prototype._signPubKeyHash = function(walletKeyMap, input, txSigHash) {
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if (this.tx.ins[input.i].s.length > 0) return {};
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var wk = walletKeyMap[input.address];
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if (!wk) return;
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var sigRaw = TransactionBuilder._signHashAndVerify(wk, txSigHash);
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var sigType = new Buffer(1);
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sigType[0] = this.signhash;
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var sig = 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(wk.privKey.public);
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scriptSig.updateBuffer();
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return {isFullySigned: true, script: scriptSig.getBuffer()};
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};
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// FOR TESTING
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/*
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var _dumpChunks = function (scriptSig, label) {
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console.log('## DUMP: ' + label + ' ##');
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for(var i=0; i<scriptSig.chunks.length; i++) {
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console.log('\tCHUNK ', i, scriptSig.chunks[i]);
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}
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};
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*/
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TransactionBuilder.prototype._initMultiSig = function(scriptSig, nreq) {
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var wasUpdated = false;
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if (scriptSig.chunks.length < nreq + 1) {
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wasUpdated = true;
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scriptSig.writeN(0);
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while (scriptSig.chunks.length <= nreq)
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scriptSig.chunks.push(util.EMPTY_BUFFER);
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}
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return wasUpdated;
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};
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TransactionBuilder.prototype._isSignedWithKey = function(wk, scriptSig, txSigHash, nreq) {
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var ret=0;
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for(var i=1; i<=nreq; i++) {
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var chunk = scriptSig.chunks[i];
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if (chunk ===0 || chunk.length === 0) continue;
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var sigRaw = new Buffer(chunk.slice(0,chunk.length-1));
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if(wk.privKey.verifySignatureSync(txSigHash, sigRaw) === true) {
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ret=true;
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}
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}
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return ret;
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};
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TransactionBuilder.prototype._chunkIsEmpty = function(chunk) {
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return chunk === 0 || // when serializing and back, EMPTY_BUFFER becomes 0
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buffertools.compare(chunk, util.EMPTY_BUFFER) === 0;
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};
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TransactionBuilder.prototype._updateMultiSig = function(wk, scriptSig, txSigHash, nreq) {
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var wasUpdated = this._initMultiSig(scriptSig, nreq);
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if (this._isSignedWithKey(wk,scriptSig, txSigHash, nreq))
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return null;
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// Find an empty slot and sign
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for(var i=1; i<=nreq; i++) {
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var chunk = scriptSig.chunks[i];
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if (!this._chunkIsEmpty(chunk))
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continue;
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// Add signature
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var sigRaw = TransactionBuilder._signHashAndVerify(wk, txSigHash);
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var sigType = new Buffer(1);
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sigType[0] = this.signhash;
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var sig = Buffer.concat([sigRaw, sigType]);
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scriptSig.chunks[i] = sig;
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scriptSig.updateBuffer();
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wasUpdated=true;
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break;
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}
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return wasUpdated ? scriptSig : null;
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};
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TransactionBuilder.prototype._multiFindKey = function(walletKeyMap,pubKeyHash) {
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var wk;
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[ networks.livenet, networks.testnet].forEach(function(n) {
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[ n.addressPubkey, n.addressScript].forEach(function(v) {
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var a = new Address(v,pubKeyHash);
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if (!wk && walletKeyMap[a]) {
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wk = walletKeyMap[a];
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}
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});
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});
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return wk;
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};
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TransactionBuilder.prototype._countMultiSig = function(script) {
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var nsigs = 0;
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for (var i = 1; i < script.chunks.length; i++)
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if (!this._chunkIsEmpty(script.chunks[i]))
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nsigs++;
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return nsigs;
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};
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TransactionBuilder.prototype.countInputMultiSig = function(i) {
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var s = new Script(this.tx.ins[i].s);
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if (!s.chunks.length || s.chunks[0] !== 0)
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return 0; // does not seems multisig
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return this._countMultiSig(s);
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};
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TransactionBuilder.prototype._signMultiSig = function(walletKeyMap, input, txSigHash) {
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var pubkeys = input.scriptPubKey.capture(),
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nreq = input.scriptPubKey.chunks[0] - 80, //see OP_2-OP_16
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l = pubkeys.length,
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originalScriptBuf = this.tx.ins[input.i].s;
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var scriptSig = new Script (originalScriptBuf);
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for(var j=0; j<l && this._countMultiSig(scriptSig)<nreq; j++) {
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var pubKeyHash = util.sha256ripe160(pubkeys[j]);
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var wk = this._multiFindKey(walletKeyMap, pubKeyHash);
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if (!wk) continue;
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var newScriptSig = this._updateMultiSig(wk, scriptSig, txSigHash, nreq);
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if (newScriptSig)
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scriptSig = newScriptSig;
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}
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return {
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isFullySigned: this._countMultiSig(scriptSig) === nreq,
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script: scriptSig.getBuffer(),
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};
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};
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var fnToSign = {};
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fnToSign[Script.TX_PUBKEYHASH] = TransactionBuilder.prototype._signPubKeyHash;
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fnToSign[Script.TX_PUBKEY] = TransactionBuilder.prototype._signPubKey;
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fnToSign[Script.TX_MULTISIG] = TransactionBuilder.prototype._signMultiSig;
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fnToSign[Script.TX_SCRIPTHASH] = TransactionBuilder.prototype._signScriptHash;
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//if (!this.hashToScriptMap) throw new Error('hashToScriptMap not set');
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TransactionBuilder.prototype.sign = function(keys) {
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this._checkTx();
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var tx = this.tx,
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ins = tx.ins,
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l = ins.length;
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l = ins.length,
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walletKeyMap = TransactionBuilder._mapKeys(keys);
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var walletKeyMap = TransactionBuilder._mapKeys(keys);
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for (var i = 0; i < l; i++) {
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var im = this.inputMap[i];
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if (typeof im === 'undefined') continue;
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var wk = walletKeyMap[im.address];
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if (!wk) continue;
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var input = this.inputMap[i];
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var scriptBuf = new Buffer(im.scriptPubKey, 'hex');
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var txSigHash = this.tx.hashForSignature(
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input.scriptPubKey, i, this.signhash);
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//TODO: support p2sh
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var s = new Script(scriptBuf);
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TransactionBuilder._checkSupportedScriptType(s);
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var txSigHash = this.tx.hashForSignature(s, i, this.signhash);
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var sigRaw = TransactionBuilder._signHashAndVerify(wk, txSigHash);
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var sigType = new Buffer(1);
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sigType[0] = this.signhash;
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var sig = 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(wk.privKey.public);
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scriptSig.updateBuffer();
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tx.ins[i].s = scriptSig.getBuffer();
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this.inputsSigned++;
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var ret = fnToSign[input.scriptType].call(this, walletKeyMap, input, txSigHash);
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if (ret && ret.script) {
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tx.ins[i].s = ret.script; //esto no aqui TODO
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if (ret.isFullySigned) this.inputsSigned++;
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}
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}
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return this;
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};
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// [addr -> script]
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TransactionBuilder.prototype.setHashToScriptMap = function(hashToScriptMap) {
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this.hashToScriptMap= hashToScriptMap;
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};
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TransactionBuilder.prototype.isFullySigned = function() {
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return this.inputsSigned === this.tx.ins.length;
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};
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@ -9,7 +9,7 @@ var run = function() {
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var buffertools = bitcore.buffertools;
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var Address = bitcore.Address;
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var util = bitcore.util;
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var opts = {network: networks.livenet};
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var opts = {network: networks.testnet};
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var p = console.log;
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@ -10,7 +10,7 @@
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{
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"address": "mqSjTad2TKbPcKQ3Jq4kgCkKatyN44UMgZ",
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"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc2",
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"scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ad",
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"scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ac",
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"vout": 0,
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"confirmations": 1,
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"amount": 0.1
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@ -18,7 +18,7 @@
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{
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"address": "mqSjTad2TKbPcKQ3Jq4kgCkKatyN44UMgZ",
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"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc3",
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"scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ae",
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"scriptPubKey": "76a9146ce4e1163eb18939b1440c42844d5f0261c0338288ac",
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"vout": 3,
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"confirmations": 0,
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"amount": 1
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@ -29,6 +29,43 @@
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"cSq7yo4fvsbMyWVN945VUGUWMaSazZPWqBVJZyoGsHmNq6W4HVBV",
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"cPa87VgwZfowGZYaEenoQeJgRfKW6PhZ1R65EHTkN1K19cSvc92G",
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"cPQ9DSbBRLva9av5nqeF5AGrh3dsdW8p2E5jS4P8bDWZAoQTeeKB"
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],
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"unspentPubKey": [
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{
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"address": "mqqnn93xN81eZTLqj7Wk2cacBBTR8agFZ5",
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"scriptPubKey": "2102aa869ff719f23d9959dca340cbf3b72770294c64005e53e0429948aa6e9701d1ac",
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"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc1",
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"vout": 1,
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"amount": 1,
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"confirmations":7
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}
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],
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"keyStringsPubKey": [
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"cTSvhK2b3XxJezmDjVN5x1KTCtui4NaLhvb78nvprpVAiqHgQvMm"
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],
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"unspentMulti": [
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{
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"address": [
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"n4JAZc4cJimQbky5wxZUEDeAFZtGaZrjWK",
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"msge5muNmBSRDn5nsaRcHCU6dg2zimA8wQ",
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"mvz9MjocpyXdgXqRcZYazsdE8iThdvjdhk",
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"miQGZ2gybQe7UvUQDBYsgcctUteij5pTpm",
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"mu9kmhGrzREKsWaXUEUrsRLLMG4UMPy1LF"
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],
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"scriptPubKey": "532103bf025eb410407aec5a67c975ce222e363bb88c69bb1acce45d20d85602df2ec52103d76dd6d99127f4b733e772f0c0a09c573ac7e4d69b8bf50272292da2e093de2c2103dd9acd8dd1816c825d6b0739339c171ae2cb10efb53699680537865b07086e9b2102371cabbaf466c3a536034b4bda64ad515807bffd87488f44f93c2373d4d189c9210264cd444358f8d57f8637a7309f9736806f4883aebc4fe7da4bad1e4b37f2d12c55ae",
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"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc1",
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"vout": 1,
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"amount": 1,
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"confirmations":7
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}
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],
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"keyStringsMulti": [
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"cP6JBHuQf7yqeqtdKRd22ibF3VehDv7G6BdzxSNABgrv3jFJUGoN",
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"cQfRwF7XLSM5xGUpF8PZvob2MZyULvZPA2j5cat2RKDJrja7FtCZ",
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"cUkYub4jtFVYymHh38yMMW36nJB4pXG5Pzd5QjResq79kAndkJcg",
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"cMyBgowsyrJRufoKWob73rMQB1PBqDdwFt8z4TJ6APN2HkmX1Ttm",
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"cN9yZCom6hAZpHtCp8ovE1zFa7RqDf3Cr4W6AwH2tp59Jjh9JcXu"
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]
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}
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@ -220,7 +220,6 @@ describe('TransactionBuilder', function() {
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amount: 0.08
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}];
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//console.log('[test.TransactionBuilder.js.216:outs:]',outs, outs.length); //TODO
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return new TransactionBuilder(opts)
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.setUnspent(testdata.dataUnspentSign.unspent)
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.setOutputs(outs);
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@ -395,4 +394,107 @@ describe('TransactionBuilder', function() {
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util.valueToBigInt(tx.outs[N].v).cmp(970000).should.equal(0);
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tx.isComplete().should.equal(false);
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});
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it('should sign a p2pubkey tx', function() {
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var opts = {
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remainderAddress: 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd',
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};
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var outs = outs || [{
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address: 'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE',
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amount: 0.08
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}];
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var b = new TransactionBuilder(opts)
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.setUnspent(testdata.dataUnspentSign.unspentPubKey)
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.setOutputs(outs)
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.sign(testdata.dataUnspentSign.keyStringsPubKey);
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b.isFullySigned().should.equal(true);
|
||||
var tx = b.build();
|
||||
tx.isComplete().should.equal(true);
|
||||
tx.ins.length.should.equal(1);
|
||||
tx.outs.length.should.equal(2);
|
||||
});
|
||||
|
||||
|
||||
it('should sign a multisig tx', function() {
|
||||
var opts = {
|
||||
remainderAddress: 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd',
|
||||
};
|
||||
var outs = outs || [{
|
||||
address: 'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE',
|
||||
amount: 0.08
|
||||
}];
|
||||
var b = new TransactionBuilder(opts)
|
||||
.setUnspent(testdata.dataUnspentSign.unspentMulti)
|
||||
.setOutputs(outs);
|
||||
|
||||
b.sign(testdata.dataUnspentSign.keyStringsMulti);
|
||||
b.isFullySigned().should.equal(true);
|
||||
var tx = b.build();
|
||||
tx.ins.length.should.equal(1);
|
||||
tx.outs.length.should.equal(2);
|
||||
tx.isComplete().should.equal(true);
|
||||
});
|
||||
|
||||
|
||||
it('should sign a multisig tx in steps (3-5)', function() {
|
||||
var opts = {
|
||||
remainderAddress: 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd',
|
||||
};
|
||||
var outs = outs || [{
|
||||
address: 'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE',
|
||||
amount: 0.08
|
||||
}];
|
||||
var b = new TransactionBuilder(opts)
|
||||
.setUnspent(testdata.dataUnspentSign.unspentMulti)
|
||||
.setOutputs(outs);
|
||||
|
||||
var k1 = testdata.dataUnspentSign.keyStringsMulti.slice(0,1);
|
||||
var k2 = testdata.dataUnspentSign.keyStringsMulti.slice(1,2);
|
||||
var k3 = testdata.dataUnspentSign.keyStringsMulti.slice(2,3);
|
||||
|
||||
b.sign(k1);
|
||||
b.isFullySigned().should.equal(false);
|
||||
b.sign(k2);
|
||||
b.isFullySigned().should.equal(false);
|
||||
b.sign(k3);
|
||||
b.isFullySigned().should.equal(true);
|
||||
|
||||
var tx = b.build();
|
||||
tx.ins.length.should.equal(1);
|
||||
tx.outs.length.should.equal(2);
|
||||
tx.isComplete().should.equal(true);
|
||||
});
|
||||
|
||||
|
||||
it('should count multisig signs (3-5)', function() {
|
||||
var opts = {
|
||||
remainderAddress: 'mwZabyZXg8JzUtFX1pkGygsMJjnuqiNhgd',
|
||||
};
|
||||
var outs = outs || [{
|
||||
address: 'mrPnbY1yKDBsdgbHbS7kJ8GVm8F66hWHLE',
|
||||
amount: 0.08
|
||||
}];
|
||||
var b = new TransactionBuilder(opts)
|
||||
.setUnspent(testdata.dataUnspentSign.unspentMulti)
|
||||
.setOutputs(outs);
|
||||
|
||||
var k1 = testdata.dataUnspentSign.keyStringsMulti.slice(0,1);
|
||||
var k2 = testdata.dataUnspentSign.keyStringsMulti.slice(1,2);
|
||||
var k3 = testdata.dataUnspentSign.keyStringsMulti.slice(2,3);
|
||||
|
||||
b.countInputMultiSig(0).should.equal(0);
|
||||
b.sign(k1);
|
||||
b.isFullySigned().should.equal(false);
|
||||
b.countInputMultiSig(0).should.equal(1);
|
||||
b.sign(k2);
|
||||
b.isFullySigned().should.equal(false);
|
||||
b.countInputMultiSig(0).should.equal(2);
|
||||
b.sign(k3);
|
||||
b.isFullySigned().should.equal(true);
|
||||
b.countInputMultiSig(0).should.equal(3);
|
||||
|
||||
|
||||
});
|
||||
});
|
||||
|
|
|
|||
Loading…
Reference in New Issue