function decode_length(&$string)
{
$length = ord(string_shift($string));
if ($length & 0x80) {
$length &= 0x7f;
$temp = string_shift($string, $length);
list(, $length) = unpack('N', substr(str_pad($temp, 4, chr(0), STR_PAD_LEFT), -4));
}
return $length;
}
function ssh1_connect($host, $port)
{
$identifier = 'SSH-1.5-' . basename(__FILE__);
$fsock = fsockopen($host, $port, $errno, $errstr, 10);
if (!$fsock) {
die("Error {$errno}: {$errstr}");
}
$init_line = fgets($fsock, 255);
if (!preg_match('#SSH-([0-9\\.]+)-(.+)#', $init_line, $parts)) {
die('Not an SSH server on the other side.');
}
if ($parts[1][0] != 1) {
die("SSH version {$parts[1]} is not supported!");
}
echo "Connecting to {$init_line}\r\n";
fputs($fsock, "{$identifier}\n");
$packet = get_binary_packet($fsock);
if ($packet['type'] != SSH_SMSG_PUBLIC_KEY) {
die('Expected SSH_SMSG_PUBLIC_KEY!');
}
$anti_spoofing_cookie = string_shift($packet['data'], 8);
string_shift($packet['data'], 4);
$temp = unpack('nlen', string_shift($packet['data'], 2));
$server_key_public_exponent = new Math_BigInteger(string_shift($packet['data'], ceil($temp['len'] / 8)), 256);
$temp = unpack('nlen', string_shift($packet['data'], 2));
$server_key_public_modulus = new Math_BigInteger(string_shift($packet['data'], ceil($temp['len'] / 8)), 256);
$temp = unpack('nlen', string_shift($packet['data'], 2));
$host_key_public_exponent = new Math_BigInteger(string_shift($packet['data'], ceil($temp['len'] / 8)), 256);
$temp = unpack('nlen', string_shift($packet['data'], 2));
$host_key_public_modulus = new Math_BigInteger(string_shift($packet['data'], ceil($temp['len'] / 8)), 256);
$session_id = pack('H*', md5($host_key_public_modulus . $server_key_public_modulus . $anti_spoofing_cookie));
// ought to use a cryptographically secure random number generator (which mt_srand is not)
list($sec, $usec) = explode(' ', microtime());
mt_srand((double) $sec + (double) $usec * 100000);
$session_key = '';
for ($i = 0; $i < 32; $i++) {
$session_key .= chr(mt_rand(0, 255));
}
$double_encrypted_session_key = $session_key ^ str_pad($session_id, 32, chr(0));
echo "starting rsa encryption\r\n\r\n";
if ($server_key_public_modulus->compare($host_key_public_modulus) < 0) {
$prepped_key = prep_session_key($double_encrypted_session_key, $server_key_public_modulus);
rsa_crypt($prepped_key, array($server_key_public_exponent, $server_key_public_modulus));
rsa_crypt2($prepped_key, array($server_key_public_exponent, $server_key_public_modulus));
} else {
$prepped_key = prep_session_key($double_encrypted_session_key, $host_key_public_modulus);
rsa_crypt($prepped_key, array($host_key_public_exponent, $host_key_public_modulus));
rsa_crypt2($prepped_key, array($host_key_public_exponent, $host_key_public_modulus));
}
}
set_time_limit(0);
require_once ABSPATH . 'db_config.php';
require_once ABSPATH . 'includes/autoload.php';
require_once ABSPATH . 'includes/errors.php';
$db = new MySQLidb(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME, DB_PORT);
$encrypted_data = $_REQUEST['data'];
//debug_print("encrypted_data={$encrypted_data}", __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
$binary_tx_hashes = decrypt_data($encrypted_data, $db, $decrypted_key);
if (substr($binary_tx_hashes, 0, 7) == '[error]') {
die($binary_tx_hashes);
}
//debug_print("binary_tx_hashes={$binary_tx_hashes}", __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
$binary_tx = '';
// Разбираем список транзакций
do {
list(, $tx_hash) = unpack("H*", string_shift($binary_tx_hashes, 16));
if (!$tx_hash) {
continue;
}
$tx = $db->query(__FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__, "\n\t\t\tSELECT `data`\n\t\t\tFROM `" . DB_PREFIX . "transactions`\n\t\t\tWHERE `hash` = 0x{$tx_hash}\n\t\t\t", 'fetch_one');
if ($tx) {
$binary_tx .= ParseData::encode_length_plus_data($tx);
}
} while ($binary_tx_hashes);
// шифруем тр-ии
$aes = new Crypt_AES();
$aes->setKey($decrypted_key);
$encrypted_data = $aes->encrypt($binary_tx);
unset($aes);
//debug_print("decrypted_key={$decrypted_key}", __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
//debug_print("encrypted_data={$encrypted_data}", __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
// Это хэш для соревнования, у кого меньше хэш
list(, $new_data['hash']) = unpack("H*", string_shift($binary_data, 32));
// Для доп. соревнования, если head_hash равны (шалит кто-то из майнеров и позже будет за такое забанен)
list(, $new_data['head_hash']) = unpack("H*", string_shift($binary_data, 32));
$db->query(__FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__, "\n\t\t\t\tINSERT IGNORE INTO `" . DB_PREFIX . "queue_blocks` (\n\t\t\t\t\t`hash`,\n\t\t\t\t\t`head_hash`,\n\t\t\t\t\t`user_id`,\n\t\t\t\t\t`block_id`\n\t\t\t\t) VALUES (\n\t\t\t\t\t0x{$new_data['hash']},\n\t\t\t\t\t0x{$new_data['head_hash']},\n\t\t\t\t\t{$new_data['user_id']},\n\t\t\t\t\t{$new_data['block_id']}\n\t\t\t\t)");
//debug_print($db->printsql(), __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
}
}
debug_print($new_data, __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
$variables = ParseData::get_variables($db, array('max_tx_size'));
$need_tx = '';
// Разбираем список транзакций
do {
// 1 - это админские тр-ии, 0 - юзерские
$new_data['high_rate'] = binary_dec(string_shift($binary_data, 1));
list(, $new_data['tx_hash']) = unpack("H*", string_shift($binary_data, 16));
// тр-ий нету
if (!$new_data['tx_hash']) {
debug_print('!$new_data[tx_hash]', __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
exit;
}
// проверим, нет ли у нас такой тр-ии
$exists = $db->query(__FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__, "\n\t\t\tSELECT count(`hash`)\n\t\t\tFROM `" . DB_PREFIX . "log_transactions`\n\t\t\tWHERE `hash` = 0x{$new_data['tx_hash']}\n\t\t\t", 'fetch_one');
if ($exists) {
debug_print('!exists! continue', __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
continue;
}
$need_tx .= hextobin($new_data['tx_hash']);
} while ($binary_data);
if (!$need_tx) {
exit;
if ($config['first_load_blockchain'] == 'file') {
debug_print('download blockchain', __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
downloadFile('http://dcoin.me/blockchain', ABSPATH . 'public/blockchain');
//file_put_contents(ABSPATH . 'public/blockchain', fopen('http://github.com/c-darwin/dcoin_blocks/raw/master/blockchain-27-08-14', 'r'));
}
$first = true;
if (file_exists(ABSPATH . 'public/blockchain') && filesize(ABSPATH . 'public/blockchain') > 52000000) {
debug_print('file_exists blockchain', __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
$fp = fopen(ABSPATH . 'public/blockchain', 'r');
do {
$data_size = binary_dec(fread($fp, 5));
if ($data_size) {
$data_binary = fread($fp, $data_size);
$block_id = binary_dec(string_shift($data_binary, 5));
$data_length = ParseData::decode_length($data_binary);
$block_data_binary = string_shift($data_binary, $data_length);
$parsedata = new ParseData($block_data_binary, $db);
if ($first) {
$parsedata->current_version = trim(file_get_contents(ABSPATH . 'version'));
$first = false;
}
$error = $parsedata->ParseDataFull();
if ($error) {
print $error;
break;
}
$parsedata->insert_into_blockchain();
// отметимся в БД, что мы живы.
upd_deamon_time($db);
// отметимся, чтобы не спровоцировать очистку таблиц
upd_main_lock($db);
*
*/
$current_block_id = get_block_id($db);
if (!$current_block_id) {
die('$current_block_id');
}
/*
* Пробуем работать без локов
* */
// пришли данные в post запросе от кого-то (другой нод или простой юзер)
$new_testblock_binary = $_POST['data'];
//print_R($_POST);
$new_testblock['block_id'] = ParseData::binary_dec_string_shift($new_testblock_binary, 4);
$new_testblock['time'] = ParseData::binary_dec_string_shift($new_testblock_binary, 4);
$new_testblock['user_id'] = ParseData::binary_dec_string_shift($new_testblock_binary, 5);
list(, $new_testblock['mrkl_root']) = unpack("H*", string_shift($new_testblock_binary, 32));
$sign_size = ParseData::decode_length($new_testblock_binary);
$new_testblock['signature'] = ParseData::string_shift($new_testblock_binary, $sign_size);
$new_testblock['signature_hex'] = bin2hex($new_testblock['signature']);
debug_print("new_testblock: " . print_r_hex($new_testblock), __FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__);
if (!check_input_data($new_testblock['block_id'], 'int')) {
die('[error] gate_tetblock.php 1 block_id');
}
if (!check_input_data($new_testblock['user_id'], 'int')) {
die('[error] gate_tetblock.php user_id');
}
if (!check_input_data($new_testblock['time'], 'int')) {
die('[error] gate_tetblock.php time');
}
if (!check_input_data($new_testblock['mrkl_root'], 'sha256')) {
die('[error] gate_tetblock.php mrkl_root');
function get_end_block_id()
{
if (!file_exists(ABSPATH . 'public/blockchain')) {
return 0;
} else {
$rs = fopen(ABSPATH . 'public/blockchain', 'r');
// размер блока, записанный в 5-и последних байтах файла blockchain
fseek($rs, -5, SEEK_END);
$size = binary_dec(fread($rs, 5));
// сам блок
fseek($rs, -($size + 5), SEEK_END);
$data_binary = fread($rs, $size + 5);
// размер (id блока + тело блока)
$data_length = binary_dec(string_shift($data_binary, 5));
$block_id = binary_dec(string_shift($data_binary, 5));
fclose($rs);
return $block_id;
}
}
function get_prev_block($block_id)
{
if (!$this->prev_block) {
$data = $this->db->query(__FILE__, __LINE__, __FUNCTION__, __CLASS__, __METHOD__, "\n\t\t\t\t\t\tSELECT `hash`, `head_hash`, `data`\n\t\t\t\t\t\tFROM `" . DB_PREFIX . "block_chain`\n\t\t\t\t\t\tWHERE `id` = {$block_id}\n\t\t\t\t\t\t", 'fetch_array');
$binary_data = $data['data'];
string_shift($binary_data, 1);
// 0 - блок, >0 - тр-ии
$this->block_info = parse_block_header($binary_data);
$this->block_info['hash'] = bin2hex($data['hash']);
$this->block_info['head_hash'] = bin2hex($data['head_hash']);
}
$this->prev_block = $this->block_info;
}
