/**
* @param $height
* @return \React\Promise\Promise
*/
public function blockGetHeader($height)
{
return $this->client->request('blockchain.block.get_header', [$height])->then(function (\BitWasp\Stratum\Request\Response $response) {
$content = $response->getResult();
return new \BitWasp\Bitcoin\Block\BlockHeader($content['version'], @$content['prev_block_hash'], $content['merkle_root'], $content['timestamp'], Buffer::hex($this->math->decHex($content['bits'])), $content['nonce']);
});
}
/**
* @dataProvider generateSet
*/
public function testPing(Ping $ping)
{
$this->assertInternalType('string', $ping->getNonce());
$this->assertEquals('ping', $ping->getNetworkCommand());
$math = new Math();
$this->assertEquals(str_pad($math->decHex($ping->getNonce()), 16, '0', STR_PAD_LEFT), $ping->getHex());
}
/**
* @dataProvider generateSet
*/
public function testPong(Ping $ping)
{
$pong = new Pong($ping->getNonce());
$this->assertEquals('pong', $pong->getNetworkCommand());
$this->assertTrue($ping->getNonce() == $pong->getNonce());
$math = new Math();
$this->assertEquals(str_pad($math->decHex($ping->getNonce()), 16, '0', STR_PAD_LEFT), $pong->getHex());
}
/**
* @param $opCode
* @param ScriptStack $mainStack
* @param ScriptStack $altStack
* @throws \BitWasp\Bitcoin\Exceptions\ScriptStackException
* @throws \Exception
*/
public function op($opCode, ScriptStack $mainStack, ScriptStack $altStack)
{
$opCodes = $this->opCodes;
$opName = $this->opCodes->getOp($opCode);
$castToBool = $this->castToBool;
if ($opName == 'OP_TOALTSTACK') {
if ($mainStack->size() < 1) {
throw new \Exception('Invalid stack operation OP_TOALTSTACK');
}
$altStack->push($mainStack->pop());
return;
} else {
if ($opName == 'OP_FROMALTSTACK') {
if ($altStack->size() < 1) {
throw new \Exception('Invalid alt-stack operation OP_FROMALTSTACK');
}
$mainStack->push($altStack->pop());
return;
} else {
if ($opName == 'OP_IFDUP') {
// If top value not zero, duplicate it.
if ($mainStack->size() < 1) {
throw new \Exception('Invalid stack operation OP_IFDUP');
}
$vch = $mainStack->top(-1);
if ($castToBool($vch)) {
$mainStack->push($vch);
}
return;
} else {
if ($opName == 'OP_DEPTH') {
$num = $mainStack->size();
$bin = Buffer::hex($this->math->decHex($num));
$mainStack->push($bin);
return;
} else {
if ($opName == 'OP_DROP') {
if ($mainStack->size() < 1) {
throw new \Exception('Invalid stack operation OP_DROP');
}
$mainStack->pop();
return;
} else {
if ($opName == 'OP_DUP') {
if ($mainStack->size() < 1) {
throw new \Exception('Invalid stack operation OP_DUP');
}
$vch = $mainStack->top(-1);
$mainStack->push($vch);
return;
} else {
if ($opName == 'OP_NIP') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_NIP');
}
$mainStack->erase(-2);
return;
} else {
if ($opName == 'OP_OVER') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_OVER');
}
$vch = $mainStack->top(-2);
$mainStack->push($vch);
return;
} else {
if (in_array($opName, ['OP_PICK', 'OP_ROLL'])) {
// cscriptnum
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_PICK');
}
$n = $mainStack->top(-1)->getInt();
$mainStack->pop();
if ($this->math->cmp($n, 0) < 0 || $this->math->cmp($n, $mainStack->size()) >= 0) {
throw new \Exception('Invalid stack operation OP_PICK');
}
$pos = $this->math->sub($this->math->sub(0, $n), 1);
$vch = $mainStack->top($pos);
if ($opCodes->isOp($opCode, 'OP_ROLL')) {
$mainStack->erase($pos);
}
$mainStack->push($vch);
return;
} else {
if ($opName == 'OP_ROT') {
if ($mainStack->size() < 3) {
throw new \Exception('Invalid stack operation OP_ROT');
}
$mainStack->swap(-3, -2);
$mainStack->swap(-2, -1);
return;
} else {
if ($opName == 'OP_SWAP') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_SWAP');
}
$mainStack->swap(-2, -1);
return;
} else {
if ($opName == 'OP_TUCK') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_TUCK');
}
$vch = $mainStack->top(-1);
$mainStack->insert($mainStack->end() - 2, $vch);
return;
} else {
if ($opName == 'OP_2DROP') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_2DROP');
}
$mainStack->pop();
$mainStack->pop();
return;
} else {
if ($opName == 'OP_2DUP') {
if ($mainStack->size() < 2) {
throw new \Exception('Invalid stack operation OP_2DUP');
}
$string1 = $mainStack->top(-2);
$string2 = $mainStack->top(-1);
$mainStack->push($string1);
$mainStack->push($string2);
return;
} else {
if ($opName == 'OP_3DUP') {
if ($mainStack->size() < 3) {
throw new \Exception('Invalid stack operation OP_3DUP');
}
$string1 = $mainStack->top(-3);
$string2 = $mainStack->top(-2);
$string3 = $mainStack->top(-1);
$mainStack->push($string1);
$mainStack->push($string2);
$mainStack->push($string3);
return;
} else {
if ($opName == 'OP_2OVER') {
if ($mainStack->size() < 4) {
throw new \Exception('Invalid stack operation OP_2OVER');
}
$string1 = $mainStack->top(-4);
$string2 = $mainStack->top(-3);
$mainStack->push($string1);
$mainStack->push($string2);
return;
} else {
if ($opName == 'OP_2ROT') {
if ($mainStack->size() < 6) {
throw new \Exception('Invalid stack operation OP_2ROT');
}
$string1 = $mainStack->top(-6);
$string2 = $mainStack->top(-5);
$mainStack->erase(-6);
$mainStack->erase(-5);
$mainStack->push($string1);
$mainStack->push($string2);
return;
} else {
if ($opName == 'OP_2SWAP') {
if ($mainStack->size() < 4) {
throw new \Exception('Invalid stack operation OP_2SWAP');
}
$mainStack->swap(-3, -1);
$mainStack->swap(-4, -2);
return;
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
throw new \Exception('Opcode not found');
}
/**
* @return Script
*/
public function getCoinbaseScriptBuf()
{
$buffer = (new Parser())->writeWithLength($this->lastBlockHeader->getBits())->writeWithLength(Buffer::hex($this->math->decHex($this->extraNonce)))->writeWithLength($this->personalString)->getBuffer();
$script = new Script($buffer);
return $script;
}
/**
* {@inheritdoc}
* @see \BitWasp\Bitcoin\Chain\DifficultyInterface::getTargetHash()
*/
public function getTargetHash(Buffer $bits)
{
$target = $this->getTarget($bits);
return Buffer::hex($this->math->decHex($target), 32);
// let buffer pad it
}