function transaction_queue()
{
$next_transaction_cycle = transaction_cycle(1);
$current_transaction_cycle = transaction_cycle(0);
$results;
// Wipe transaction queue of all old transaction from current to previous cycle
if (rand(1, 2) == 2) {
mysql_query("DELETE QUICK FROM `transaction_queue` WHERE `transaction_queue`.`timestamp` < {$current_transaction_cycle}");
}
// Create a hash of my own transaction queue
$transaction_queue_hash = queue_hash();
// How does my transaction queue compare to others?
// Ask all of my active peers
ini_set('user_agent', 'Timekoin Client (Queueclerk) v' . TIMEKOIN_VERSION);
ini_set('default_socket_timeout', 2);
// Timeout for request in seconds
$transaction_queue_hash_match = 0;
$transaction_queue_hash_different = 0;
$hash_different = array();
$sql = "SELECT * FROM `active_peer_list` ORDER BY RAND()";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
$transaction_queue_hash_match = 0;
$transaction_queue_hash_different = 0;
if ($sql_num_results > 0) {
$hash_different = array();
for ($i = 0; $i < $sql_num_results; $i++) {
$sql_row = mysql_fetch_array($sql_result);
$ip_address = $sql_row["IP_Address"];
$domain = $sql_row["domain"];
$subfolder = $sql_row["subfolder"];
$port_number = $sql_row["port_number"];
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 40, "queueclerk.php?action=trans_hash&client=api");
if ($transaction_queue_hash === $poll_peer) {
$transaction_queue_hash_match++;
} else {
if (empty($poll_peer) == FALSE) {
$transaction_queue_hash_different++;
$hash_different["ip_address{$transaction_queue_hash_different}"] = $ip_address;
$hash_different["domain{$transaction_queue_hash_different}"] = $domain;
$hash_different["subfolder{$transaction_queue_hash_different}"] = $subfolder;
$hash_different["port_number{$transaction_queue_hash_different}"] = $port_number;
}
}
}
// End for Loop
}
// End number of results check
// Compare tallies
if ($transaction_queue_hash_different > 0) {
// Transaction Queue still not in sync with all peers
$hash_array = array();
$transaction_counter = 0;
for ($i = 1; $i < $transaction_queue_hash_different + 1; $i++) {
$ip_address = $hash_different["ip_address{$i}"];
$domain = $hash_different["domain{$i}"];
$subfolder = $hash_different["subfolder{$i}"];
$port_number = $hash_different["port_number{$i}"];
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 8200, "queueclerk.php?action=queue&client=api");
// Bring up first match (if any) to compare agaist our database
$match_number = 1;
$current_hash = find_string("---queue{$match_number}=", "---end{$match_number}", $poll_peer);
$transaction_counter = 0;
$peer_transaction_limit = 100;
$mismatch_error_count = 0;
$mismatch_error_limit = 10;
while (empty($current_hash) == FALSE) {
// Count transactions coming from this peer
$transaction_counter++;
if ($transaction_counter > $peer_transaction_limit) {
break;
}
if ($mismatch_error_count > $mismatch_error_limit) {
break;
}
//Check if this transaction is already in our queue
$hash_match = mysql_result(mysql_query("SELECT hash FROM `transaction_queue` WHERE `hash` = '{$current_hash}' LIMIT 1"), 0, 0);
if (empty($hash_match) == TRUE) {
// This peer has a different transaction, ask for the full details of it
$poll_hash = poll_peer($ip_address, $domain, $subfolder, $port_number, 1500, "queueclerk.php?action=transaction&number={$current_hash}&client=api");
$transaction_timestamp = filter_sql(find_string("-----timestamp=", "-----public_key", $poll_hash));
$transaction_public_key = find_string("-----public_key=", "-----crypt1", $poll_hash);
$transaction_crypt1 = filter_sql(find_string("-----crypt1=", "-----crypt2", $poll_hash));
$transaction_crypt2 = filter_sql(find_string("-----crypt2=", "-----crypt3", $poll_hash));
$transaction_crypt3 = filter_sql(find_string("-----crypt3=", "-----hash", $poll_hash));
$transaction_hash = filter_sql(find_string("-----hash=", "-----attribute", $poll_hash));
$transaction_attribute = find_string("-----attribute=", "-----end", $poll_hash);
$transaction_qhash = find_string("---qhash=", "---endqhash", $poll_hash);
// If a qhash is included, use this to verify the data
if (empty($transaction_qhash) == FALSE) {
$qhash = $transaction_timestamp . $transaction_public_key . $transaction_crypt1 . $transaction_crypt2 . $transaction_crypt3 . $transaction_hash . $transaction_attribute;
$qhash = hash('md5', $qhash);
// Compare hashes to make sure data is intact
if ($transaction_qhash != $qhash) {
$transaction_attribute = "mismatch";
$mismatch_error_count++;
}
} else {
// Qhash is required to match hash now
$transaction_attribute = "mismatch";
$mismatch_error_count++;
}
$transaction_public_key = filter_sql(base64_decode($transaction_public_key));
if ($transaction_attribute == "T" || $transaction_attribute == "G") {
// Decrypt transaction information for regular transaction data
// and check to make sure the public key that is being sent to
// has not been tampered with.
$transaction_info = tk_decrypt($transaction_public_key, base64_decode($transaction_crypt3));
$inside_transaction_hash = find_string("HASH=", "", $transaction_info, TRUE);
// Check if a message is encoded in this data as well
if (strlen($inside_transaction_hash) != 64) {
// A message is also encoded
$inside_transaction_hash = find_string("HASH=", "---MSG", $transaction_info);
}
// Check Hash against 3 crypt fields
$crypt_hash_check = hash('sha256', $transaction_crypt1 . $transaction_crypt2 . $transaction_crypt3);
}
$final_hash_compare = hash('sha256', $transaction_crypt1 . $transaction_crypt2);
// Check to make sure this transaction is even valid (hash check, length check, & timestamp)
if ($transaction_hash == $crypt_hash_check && $inside_transaction_hash == $final_hash_compare && strlen($transaction_public_key) > 300 && $transaction_timestamp >= $current_transaction_cycle && $transaction_timestamp < $next_transaction_cycle) {
// Check for 100 public key limit in the transaction queue
$sql = "SELECT timestamp FROM `transaction_queue` WHERE `public_key` = '{$transaction_public_key}'";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
if ($sql_num_results < 100) {
// Transaction hash and real hash match
$sql = "INSERT INTO `transaction_queue` (`timestamp`,`public_key`,`crypt_data1`,`crypt_data2`,`crypt_data3`, `hash`, `attribute`)\n\t\t\t\t\t\t\tVALUES ('{$transaction_timestamp}', '{$transaction_public_key}', '{$transaction_crypt1}', '{$transaction_crypt2}' , '{$transaction_crypt3}', '{$transaction_hash}' , '{$transaction_attribute}')";
mysql_query($sql);
}
}
}
// End Empty Hash Check
$match_number++;
$current_hash = find_string("---queue{$match_number}=", "---end{$match_number}", $poll_peer);
}
// End While Loop
}
// End For Loop
}
// End Compare Tallies
return;
}
// Transaction hash and real hash match.
mysql_query("INSERT INTO `transaction_queue` (`timestamp`,`public_key`,`crypt_data1`,`crypt_data2`,`crypt_data3`, `hash`, `attribute`)\n\t\t\t\t\t\t\tVALUES ('{$transaction_timestamp}', '{$transaction_public_key}', '{$transaction_crypt1}', '{$transaction_crypt2}' , '{$transaction_crypt3}', '{$transaction_hash}' , '{$transaction_attribute}')");
} else {
write_log("More Than 100 Transactions Trying to Queue for Key: " . base64_encode($transaction_public_key), "QC");
}
}
}
// End Empty Hash Check
$match_number++;
$current_hash = find_string("---queue{$match_number}=", "---end{$match_number}", $poll_peer);
}
// End While Loop
}
// End For Loop
// Build queue hash after completion
$transaction_queue_hash = queue_hash();
// Store in database for quick reference from database
mysql_query("UPDATE `options` SET `field_data` = '{$transaction_queue_hash}' WHERE `options`.`field_name` = 'transaction_queue_hash' LIMIT 1");
}
// End Compare Tallies
}
// If/then Check for valid times
//***********************************************************************************
//***********************************************************************************
$loop_active = mysql_result(mysql_query("SELECT field_data FROM `main_loop_status` WHERE `field_name` = 'queueclerk_heartbeat_active' LIMIT 1"), 0, 0);
// Check script status
if ($loop_active == 3) {
// Time to exit
mysql_query("DELETE FROM `main_loop_status` WHERE `main_loop_status`.`field_name` = 'queueclerk_heartbeat_active'");
exit;
}
function transaction_queue()
{
$next_transaction_cycle = transaction_cycle(1);
$current_transaction_cycle = transaction_cycle(0);
$results;
// Wipe transaction queue of all old transaction from current to previous cycle
if (rand(1, 2) == 2) {
mysql_query("DELETE QUICK FROM `transaction_queue` WHERE `transaction_queue`.`timestamp` < {$current_transaction_cycle}");
}
// Create a hash of my own transaction queue
$transaction_queue_hash = queue_hash();
// How does my transaction queue compare to others?
// Ask all of my active peers
ini_set('user_agent', 'Timekoin Client (Queueclerk) v' . TIMEKOIN_VERSION);
ini_set('default_socket_timeout', 2);
// Timeout for request in seconds
$transaction_queue_hash_match = 0;
$transaction_queue_hash_different = 0;
$hash_different = array();
$sql = "SELECT * FROM `active_peer_list` ORDER BY RAND()";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
$transaction_queue_hash_match = 0;
$transaction_queue_hash_different = 0;
if ($sql_num_results > 0) {
$hash_different = array();
for ($i = 0; $i < $sql_num_results; $i++) {
$sql_row = mysql_fetch_array($sql_result);
$ip_address = $sql_row["IP_Address"];
$domain = $sql_row["domain"];
$subfolder = $sql_row["subfolder"];
$port_number = $sql_row["port_number"];
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 32, "queueclerk.php?action=trans_hash&client=api");
if ($transaction_queue_hash === $poll_peer) {
$transaction_queue_hash_match++;
} else {
if (empty($poll_peer) == FALSE) {
$transaction_queue_hash_different++;
$hash_different["ip_address{$transaction_queue_hash_different}"] = $ip_address;
$hash_different["domain{$transaction_queue_hash_different}"] = $domain;
$hash_different["subfolder{$transaction_queue_hash_different}"] = $subfolder;
$hash_different["port_number{$transaction_queue_hash_different}"] = $port_number;
}
}
}
// End for Loop
}
// End number of results check
// Compare tallies
if ($transaction_queue_hash_different > 0) {
// Transaction Queue still not in sync with all peers
$hash_array = array();
$transaction_counter = 0;
for ($i = 1; $i < $transaction_queue_hash_different + 1; $i++) {
$ip_address = $hash_different["ip_address{$i}"];
$domain = $hash_different["domain{$i}"];
$subfolder = $hash_different["subfolder{$i}"];
$port_number = $hash_different["port_number{$i}"];
$poll_peer = filter_sql(poll_peer($ip_address, $domain, $subfolder, $port_number, 83000, "queueclerk.php?action=queue&client=api"));
// Bring up first match (if any) to compare agaist our database
$match_number = 1;
$current_hash = find_string("---queue{$match_number}=", "---end{$match_number}", $poll_peer);
$transaction_counter = 0;
$peer_transaction_limit = 1000;
$mismatch_error_count = 0;
$mismatch_error_limit = 10;
while (empty($current_hash) == FALSE) {
// Count transactions coming from this peer
$transaction_counter++;
if ($transaction_counter > $peer_transaction_limit) {
break;
}
if ($mismatch_error_count > $mismatch_error_limit) {
break;
}
if (strlen($current_hash) >= 64) {
// Old Queue System Check
//Check if this transaction is already in our queue
$hash_match = mysql_result(mysql_query("SELECT timestamp FROM `transaction_queue` WHERE `hash` = '{$current_hash}' LIMIT 1"), 0, 0);
} else {
// New Queue System Check
$sql2 = "SELECT * FROM `transaction_queue`";
$sql_result2 = mysql_query($sql2);
$sql_num_results2 = mysql_num_rows($sql_result2);
$queue_hash_test = NULL;
$hash_match = NULL;
if ($sql_num_results2 > 0) {
for ($i2 = 0; $i2 < $sql_num_results2; $i2++) {
$sql_row2 = mysql_fetch_array($sql_result2);
$queue_hash_test .= $sql_row2["timestamp"] . $sql_row2["public_key"] . $sql_row2["crypt_data1"] . $sql_row2["crypt_data2"] . $sql_row2["crypt_data3"] . $sql_row2["hash"] . $sql_row2["attribute"];
if (hash('md5', $queue_hash_test) == $current_hash) {
// This Transaction Already Exist in the Queue
$hash_match = TRUE;
break;
} else {
// No match, continue searching
$hash_match = NULL;
}
// No match, move on to next record
$queue_hash_test = NULL;
}
}
}
if (empty($hash_match) == TRUE) {
// This peer has a different transaction, ask for the full details of it
$poll_hash = poll_peer($ip_address, $domain, $subfolder, $port_number, 1500, "queueclerk.php?action=transaction&number={$current_hash}&client=api");
$transaction_timestamp = find_string("-----timestamp=", "-----public_key", $poll_hash);
$transaction_public_key = find_string("-----public_key=", "-----crypt1", $poll_hash);
$transaction_crypt1 = find_string("-----crypt1=", "-----crypt2", $poll_hash);
$transaction_crypt2 = find_string("-----crypt2=", "-----crypt3", $poll_hash);
$transaction_crypt3 = find_string("-----crypt3=", "-----hash", $poll_hash);
$transaction_hash = find_string("-----hash=", "-----attribute", $poll_hash);
$transaction_attribute = find_string("-----attribute=", "-----end", $poll_hash);
$transaction_qhash = find_string("---qhash=", "---endqhash", $poll_hash);
// If a qhash is included, use this to verify the data
if (empty($transaction_qhash) == FALSE) {
$qhash = $transaction_timestamp . $transaction_public_key . $transaction_crypt1 . $transaction_crypt2 . $transaction_crypt3 . $transaction_hash . $transaction_attribute;
$qhash = hash('md5', $qhash);
// Compare hashes to make sure data is intact
if ($transaction_qhash != $qhash) {
$transaction_attribute = "mismatch";
$mismatch_error_count++;
} else {
// Make sure hash is actually valid and not made up to stop other transactions
$crypt_hash_check = hash('sha256', $transaction_crypt1 . $transaction_crypt2 . $transaction_crypt3);
if ($crypt_hash_check != $transaction_hash) {
// Ok, something is wrong here...
$transaction_attribute = "mismatch";
$mismatch_error_count++;
}
}
} else {
// Qhash is required to match hash
$transaction_attribute = "mismatch";
$mismatch_error_count++;
}
$transaction_public_key = filter_sql(base64_decode($transaction_public_key));
if ($transaction_attribute == "R") {
// Check to make sure this public key isn't forged or made up to win the list
$inside_transaction_hash = tk_decrypt($transaction_public_key, base64_decode($transaction_crypt1));
$final_hash_compare = $transaction_crypt2;
$crypt_hash_check = $transaction_hash;
$valid_amount = TRUE;
// No amount, but needs this to pass amount test
$public_key_to = $transaction_public_key;
// None is used, but needs this to pass the key length test
} else {
if ($transaction_attribute == "T" || $transaction_attribute == "G") {
// Decrypt transaction information for regular transaction data
// and check to make sure the public key that is being sent to
// has not been tampered with.
$transaction_info = tk_decrypt($transaction_public_key, base64_decode($transaction_crypt3));
// Find destination public key
$public_key_to_1 = tk_decrypt($transaction_public_key, base64_decode($transaction_crypt1));
$public_key_to_2 = tk_decrypt($transaction_public_key, base64_decode($transaction_crypt2));
$public_key_to = $public_key_to_1 . $public_key_to_2;
$transaction_amount_sent = find_string("AMOUNT=", "---TIME", $transaction_info);
$transaction_amount_sent_test = intval($transaction_amount_sent);
if ($transaction_amount_sent_test == $transaction_amount_sent) {
// Is a valid integer, amount greater than zero?
if ($transaction_amount_sent > 0) {
$valid_amount = TRUE;
} else {
$valid_amount = FALSE;
}
} else {
// Is NOT a valid integer, fail check
$valid_amount = FALSE;
}
if ($transaction_attribute == "G") {
if ($transaction_amount_sent_test > 10) {
// Filter silly generation amounts :p
$valid_amount = FALSE;
}
}
$inside_transaction_hash = find_string("HASH=", "", $transaction_info, TRUE);
// Check if a message is encoded in this data as well
if (strlen($inside_transaction_hash) != 64) {
// A message is also encoded
$inside_transaction_hash = find_string("HASH=", "---MSG", $transaction_info);
}
// Check Hash against 3 crypt fields
$crypt_hash_check = hash('sha256', $transaction_crypt1 . $transaction_crypt2 . $transaction_crypt3);
}
$final_hash_compare = hash('sha256', $transaction_crypt1 . $transaction_crypt2);
}
// Check to make sure this transaction is even valid (hash check, length check, & timestamp)
if ($transaction_hash == $crypt_hash_check && $inside_transaction_hash == $final_hash_compare && strlen($transaction_public_key) > 300 && strlen($public_key_to) > 300 && $transaction_timestamp >= $current_transaction_cycle && $transaction_timestamp < $next_transaction_cycle && $valid_amount == TRUE) {
// Check for 100 public key limit in the transaction queue
$sql = "SELECT timestamp FROM `transaction_queue` WHERE `public_key` = '{$transaction_public_key}'";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
if ($sql_num_results < 100) {
// Transaction hash and real hash match.
mysql_query("INSERT INTO `transaction_queue` (`timestamp`,`public_key`,`crypt_data1`,`crypt_data2`,`crypt_data3`, `hash`, `attribute`)\n\t\t\t\t\t\t\tVALUES ('{$transaction_timestamp}', '{$transaction_public_key}', '{$transaction_crypt1}', '{$transaction_crypt2}' , '{$transaction_crypt3}', '{$transaction_hash}' , '{$transaction_attribute}')");
}
}
}
// End Empty Hash Check
$match_number++;
$current_hash = find_string("---queue{$match_number}=", "---end{$match_number}", $poll_peer);
}
// End While Loop
}
// End For Loop
}
// End Compare Tallies
return;
}
