$subfolder = $sql_row["subfolder"];
$port_number = $sql_row["port_number"];
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 10000, "peerlist.php?action=new_peers");
$peer_counter = 1;
// Reset peer counter
while ($peer_counter <= 15) {
$peer_IP = NULL;
$peer_domain = NULL;
$peer_subfolder = NULL;
$peer_port_number = NULL;
// Sort Data
$peer_IP = find_string("-----IP{$peer_counter}=", "-----domain{$peer_counter}", $poll_peer);
$peer_domain = find_string("-----domain{$peer_counter}=", "-----subfolder{$peer_counter}", $poll_peer);
$peer_subfolder = find_string("-----subfolder{$peer_counter}=", "-----port_number{$peer_counter}", $poll_peer);
$peer_port_number = find_string("-----port_number{$peer_counter}=", "-----", $poll_peer);
if (is_domain_valid($peer_domain) == FALSE) {
// Someone is using an IP address or Localhost :p
$peer_domain = NULL;
}
if (empty($peer_port_number) == TRUE && empty($peer_subfolder) == TRUE) {
// No more peers, end this loop early
break;
}
if (empty($peer_IP) == TRUE && empty($peer_domain) == TRUE) {
$duplicate_peer == TRUE;
// Flag to avoid putting blank entry in database
} else {
// Check to make sure that this peer is not already in our new peer list
$duplicate_check1 = mysql_result(mysql_query("SELECT * FROM `new_peers_list` WHERE `IP_Address` = '{$peer_IP}' LIMIT 1"), 0, 0);
$duplicate_check2 = mysql_result(mysql_query("SELECT * FROM `new_peers_list` WHERE `domain` LIKE '{$peer_domain}' LIMIT 1"), 0, 1);
if (empty($peer_IP) == TRUE) {
function peer_list()
{
ini_set('user_agent', 'Timekoin Client (Peerlist) v' . TIMEKOIN_VERSION);
ini_set('default_socket_timeout', 2);
// Timeout for request in seconds
$max_active_peers = mysql_result(mysql_query("SELECT * FROM `options` WHERE `field_name` = 'max_active_peers' LIMIT 1"), 0, "field_data");
$max_new_peers = mysql_result(mysql_query("SELECT * FROM `options` WHERE `field_name` = 'max_new_peers' LIMIT 1"), 0, "field_data");
// How many active peers do we have?
$active_peers = mysql_result(mysql_query("SELECT COUNT(join_peer_list) FROM `active_peer_list`"), 0);
$new_peers = mysql_result(mysql_query("SELECT COUNT(poll_failures) FROM `new_peers_list`"), 0);
if ($active_peers == 0) {
// No active or new peers to poll from, start with the first contact servers
// and copy them to the new peer list
$sql = "SELECT * FROM `options` WHERE `field_name` = 'first_contact_server'";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
write_log("Peer List Empty. Adding First Contact Servers.", "PL");
// First Contact Server Format
//---ip=192.168.0.1---domain=timekoin.com---subfolder=timekoin---port=80---code=guest---end
for ($i = 0; $i < $sql_num_results; $i++) {
$sql_row = mysql_fetch_array($sql_result);
$peer_ip = find_string("---ip=", "---domain", $sql_row["field_data"]);
$peer_domain = find_string("---domain=", "---subfolder", $sql_row["field_data"]);
$peer_subfolder = find_string("---subfolder=", "---port", $sql_row["field_data"]);
$peer_port_number = find_string("---port=", "---code", $sql_row["field_data"]);
$peer_code = find_string("---code=", "---end", $sql_row["field_data"]);
// Insert into database as first contact server(s)
$sql = "INSERT INTO `active_peer_list` (`IP_Address` ,`domain` ,`subfolder` ,`port_number` ,`last_heartbeat`, `join_peer_list`, `failed_sent_heartbeat`, `code`)\n\t\t\tVALUES ('{$peer_ip}', '{$peer_domain}', '{$peer_subfolder}', '{$peer_port_number}', UNIX_TIMESTAMP(), UNIX_TIMESTAMP(), '0', '{$peer_code}');";
mysql_query($sql);
$active_peers++;
}
}
if ($active_peers < $max_active_peers) {
//Start polling peers from the new peers list
$sql = "SELECT * FROM `new_peers_list` ORDER BY RAND() LIMIT 10";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
// Peer difference
$peer_difference_count = $max_active_peers - $active_peers;
for ($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_failures = $sql_row["poll_failures"];
$code = $sql_row["code"];
// Check to make sure that this peer is not already in our active peer list
$duplicate_check1 = mysql_result(mysql_query("SELECT * FROM `active_peer_list` WHERE `IP_Address` = '{$ip_address}' LIMIT 1"), 0, 0);
$duplicate_check2 = mysql_result(mysql_query("SELECT * FROM `active_peer_list` WHERE `domain` LIKE '{$domain}' LIMIT 1"), 0, 1);
if (empty($ip_address) == TRUE) {
//Don't have an IP address, check for duplicate domain or my own domain
if (empty($duplicate_check2) == TRUE) {
// Neither IP nor Domain exist
$duplicate_peer = FALSE;
} else {
$duplicate_peer = TRUE;
}
} else {
// Using IP only, is there a duplicate IP or Domain
if (empty($duplicate_check1) == TRUE && empty($duplicate_check2) == TRUE) {
$duplicate_peer = FALSE;
} else {
$duplicate_peer = TRUE;
}
}
if ($duplicate_peer == FALSE) {
// Poll Peer for Access
if (empty($code) == TRUE) {
// Try guest access
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 5, "api.php?action=tk_hash_status&hash=guest");
} else {
// Using custom code for peer
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 5, "api.php?action=tk_hash_status&hash={$code}");
}
if ($poll_peer == TRUE) {
// Add this peer to the active list
// Insert this peer into our active peer table
// Save only domain name if both IP and Domain exist
if (empty($domain) == FALSE) {
$ip_address = NULL;
}
if (empty($code) == TRUE) {
$code = "guest";
}
// Store new peer in active list
$sql = "INSERT INTO `active_peer_list` (`IP_Address` ,`domain` ,`subfolder` ,`port_number` ,`last_heartbeat` ,`join_peer_list` ,`failed_sent_heartbeat` ,`code`)\n\t\t\tVALUES ('{$ip_address}', '{$domain}', '{$subfolder}', '{$port_number}', '" . time() . "', '" . time() . "', '0', '{$code}');";
if (mysql_query($sql) == TRUE) {
// Subtract 1 from the peer difference count
$peer_difference_count--;
write_log("Joined with Peer {$ip_address}:{$domain}:{$port_number}/{$subfolder}", "PL");
}
} else {
//No response, record polling failure for future reference
$poll_failures++;
mysql_query("UPDATE `new_peers_list` SET `poll_failures` = '{$poll_failures}' WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
}
} else {
// Active response will remove poll failures
mysql_query("UPDATE `new_peers_list` SET `poll_failures` = 0 WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
}
// Check to see if enough peers have been added
if ($peer_difference_count <= 0) {
// Break out of loop
break;
}
}
// End For Loop
}
// End Active vs Max Peer Check
//***********************************************************************************
// Add more peers to the new peers list to satisfy new peer limit
// How many new peers do we have now?
$sql = "SELECT * FROM `new_peers_list`";
$new_peers_numbers = mysql_num_rows(mysql_query($sql));
if ($new_peers_numbers < $max_new_peers && rand(1, 3) == 2) {
// Add more possible peers to the new peer list by polling what the active peers have
$sql = "SELECT * FROM `active_peer_list` ORDER BY RAND() LIMIT 10";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
$new_peer_difference = $max_new_peers - $new_peers_numbers;
for ($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, 10000, "peerlist.php?action=new_peers");
$peer_counter = 1;
// Reset peer counter
while ($peer_counter <= 15) {
$peer_IP = NULL;
$peer_domain = NULL;
$peer_subfolder = NULL;
$peer_port_number = NULL;
// Sort Data
$peer_IP = find_string("-----IP{$peer_counter}=", "-----domain{$peer_counter}", $poll_peer);
$peer_domain = find_string("-----domain{$peer_counter}=", "-----subfolder{$peer_counter}", $poll_peer);
$peer_subfolder = find_string("-----subfolder{$peer_counter}=", "-----port_number{$peer_counter}", $poll_peer);
$peer_port_number = find_string("-----port_number{$peer_counter}=", "-----", $poll_peer);
if (is_domain_valid($peer_domain) == FALSE) {
// Someone is using an IP address or Localhost :p
$peer_domain = NULL;
}
if (empty($peer_port_number) == TRUE && empty($peer_subfolder) == TRUE) {
// No more peers, end this loop early
break;
}
if (empty($peer_IP) == TRUE && empty($peer_domain) == TRUE) {
$duplicate_peer == TRUE;
// Flag to avoid putting blank entry in database
} else {
// Check to make sure that this peer is not already in our new peer list
$duplicate_check1 = mysql_result(mysql_query("SELECT * FROM `new_peers_list` WHERE `IP_Address` = '{$peer_IP}' LIMIT 1"), 0, 0);
$duplicate_check2 = mysql_result(mysql_query("SELECT * FROM `new_peers_list` WHERE `domain` LIKE '{$peer_domain}' LIMIT 1"), 0, 1);
if (empty($peer_IP) == TRUE) {
//Don't have an IP address, check for duplicate domain
if (empty($duplicate_check2) == TRUE) {
// Neither IP nor Domain exist
$duplicate_peer = FALSE;
} else {
$duplicate_peer = TRUE;
}
} else {
// Using IP only, is there a duplicate
if (empty($duplicate_check1) == TRUE) {
if (empty($duplicate_check2) == FALSE) {
$duplicate_peer = TRUE;
} else {
$duplicate_peer = TRUE;
}
} else {
$duplicate_peer = TRUE;
}
}
}
if ($duplicate_peer == FALSE) {
// Save only domain name if both IP and Domain exist
if (empty($peer_domain) == FALSE) {
$peer_IP = NULL;
}
if (empty($peer_IP) == FALSE || empty($peer_domain) == FALSE) {
// This is a fresh new peer, add it to the database list
$sql = "INSERT INTO `new_peers_list` (`IP_Address` ,`domain` ,`subfolder` ,`port_number` ,`poll_failures` ,`code`)\n\t\t\t\tVALUES ('{$peer_IP}', '{$peer_domain}', '{$peer_subfolder}', '{$peer_port_number}', '0', 'guest')";
if (mysql_query($sql) == TRUE) {
// Subtract one from total left to find
$new_peer_difference--;
}
}
}
if ($new_peer_difference <= 0) {
// Enough new peers saved, break out of while loop early
break;
}
$peer_counter++;
}
// End While loop check
if ($new_peer_difference <= 0) {
// Enough new peers saved, break out of for loop early
break;
}
}
// End For loop check
}
// End New Peers vs Max New Peers check
//***********************************************************************************
// Send a heartbeat to all active peers in our list to make sure they are still online
$sql = "SELECT * FROM `active_peer_list`";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
for ($i = 0; $i < $sql_num_results; $i++) {
$sql_row = mysql_fetch_array($sql_result);
if (rand(1, 3) == 2) {
$ip_address = $sql_row["IP_Address"];
$domain = $sql_row["domain"];
$subfolder = $sql_row["subfolder"];
$port_number = $sql_row["port_number"];
$last_heartbeat = $sql_row["last_heartbeat"];
$join_peer_list = $sql_row["join_peer_list"];
$failed_sent_heartbeat = $sql_row["failed_sent_heartbeat"];
$code = $sql_row["code"];
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 5, "api.php?action=tk_hash_status&hash={$code}");
if ($poll_peer == TRUE) {
//Got a response from an active Timekoin server
mysql_query("UPDATE `active_peer_list` SET `last_heartbeat` = '" . time() . "', `failed_sent_heartbeat` = 0 WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
} else {
//No response, record polling failure for future reference
$failed_sent_heartbeat++;
mysql_query("UPDATE `active_peer_list` SET `failed_sent_heartbeat` = '{$failed_sent_heartbeat}' WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
}
}
// End Randomize Check
}
// End for Loop
// Remove all active peers that are offline for more than 5 minutes
if (rand(1, 2) == 2) {
mysql_query("DELETE QUICK FROM `active_peer_list` WHERE `last_heartbeat` < " . (time() - 300) . " AND `join_peer_list` != 0");
}
//***********************************************************************************
// Send a heartbeat to all reserve peers in our list to make sure they are still online
$sql = "SELECT * FROM `new_peers_list`";
$sql_result = mysql_query($sql);
$sql_num_results = mysql_num_rows($sql_result);
for ($i = 0; $i < $sql_num_results; $i++) {
$sql_row = mysql_fetch_array($sql_result);
if (rand(1, 3) == 2) {
$ip_address = $sql_row["IP_Address"];
$domain = $sql_row["domain"];
$subfolder = $sql_row["subfolder"];
$port_number = $sql_row["port_number"];
$poll_failures = $sql_row["poll_failures"];
// Query Server for valid Hashcode
$poll_peer = poll_peer($ip_address, $domain, $subfolder, $port_number, 5, "api.php?action=tk_hash_status&hash={$code}");
if ($poll_peer == TRUE) {
//Got a response from an active Timekoin server
mysql_query("UPDATE `new_peers_list` SET `poll_failures` = 0 WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
} else {
//No response, record polling failure for future reference
$poll_failures++;
mysql_query("UPDATE `new_peers_list` SET `poll_failures` = '{$poll_failures}' WHERE `IP_Address` = '{$ip_address}' AND `domain` = '{$domain}' AND `subfolder` = '{$subfolder}' AND `port_number` = {$port_number} LIMIT 1");
}
}
// End Randomize Check
}
// End for Loop
// Clean up reserve peer list by removing those that have no responded for over 6 poll attempts
if (rand(1, 2) == 2) {
mysql_query("DELETE QUICK FROM `new_peers_list` WHERE `poll_failures` > 6");
}
return;
}
