Я использовал WebSocket в PHP. но каким-то образом он закроется через некоторое время (так много запросов).
В любом случае справиться?
При попытке запустить его после остановки мы получили следующую ошибку:
socket_bind (): невозможно связать адрес [10013]: была предпринята попытка
получить доступ к сокету способом, запрещенным его правами доступа.
в C: \ wamp64 \ www \ Websocket \ server.php в строке 52
Предупреждение: socket_listen (): невозможно прослушать сокет [10022]: указан неверный аргумент.
в C: \ wamp64 \ www \ Websocket \ server.php в строке 55
Вот мой код:
<?php
set_time_limit(0);
error_reporting(E_ALL);
//include 'Triangulate.php';
$filename = 'logs.txt';
class Values
{
public $distance;
public $rasp_id;
public $rssi;
}
$host = '10.37.54.167'; //host
$port = '9000'; //port
$null = null; //null var
$rasp = array(
47 => array(17, 0),
124 => array(1,6.4),
43 => array(1,0),
44 => array(4.6,2));
//Create TCP/IP sream socket
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
//reuseable port
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
//bind socket to specified host
socket_bind($socket, 0, $port);
//listen to port
socket_listen($socket);
//create & add listning socket to the list
$clients = array($socket);
$distance = array();
$totalbicken = array(array());
//start endless loop, so that our script doesn't stop
while (true) {
//manage multipal connections
$changed = $clients;
//returns the socket resources in $changed array
socket_select($changed, $null, $null, 0, 10);
$fp = fopen($filename, 'a+');
//check for new socket
if (in_array($socket, $changed)) {
$socket_new = socket_accept($socket); //accpet new socket
$clients[] = $socket_new; //add socket to client array
$header = socket_read($socket_new, 1024); //read data sent by the socket
perform_handshaking($header, $socket_new, $host, $port); //perform websocket handshake
socket_getpeername($socket_new, $ip); //get ip address of connected socket
$response = mask(json_encode(array('type' => 'system', 'message' => $ip . ' connected'))); //prepare json data
fwrite ($fp,$response . "\n");
// send_message($response); //notify all users about new connection
// send_message_socket($response, $socket_new);
//make room for new socket
$found_socket = array_search($socket, $changed);
unset($changed[$found_socket]);
}
//loop through all connected sockets
foreach ($changed as $changed_socket) {
//check for any incomming data
try {
while (socket_recv($changed_socket, $buf, 1024, 0) >= 1) {
$received_text = unmask($buf); //Unmask Recive data.
fwrite ($fp,"Text receive:" . $received_text . "\n");
$tst_msg = json_decode($received_text); //json decode.
fwrite ($fp,"Json Decord!". "\n");
if (!isset($tst_msg->action)) {
} else {
$user_action = $tst_msg->action; //sender name.
if ($user_action == "distance") { //If action is distance.
$rasp_id = $tst_msg->rasp_id; //get raspberry uniq id.
$beacon_id = $tst_msg->beacon_id; //get beacon id
$distance_temp = $tst_msg->distance; // get distance
$rssi = $tst_msg->rssi; //get RSSI.
fwrite ($fp,isset($distance[$beacon_id]). "\n");
fwrite ($fp,"Get all values!". "\n");
// echo mask(json_encode(array('type'=>'message', 'action'=>'distance', 'beacon_id'=>$beacon_id, 'rasp_id'=>$rasp_id, 'distance'=>$distance)));
if (isset($distance[$beacon_id])) {
$totalbicken[$beacon_id] = count($distance[$beacon_id]); //get total distance of sender beacon
} else {
$totalbicken[$beacon_id] = 0;
}
if (isset($rasp[$rasp_id])) {
echo "\nRequest from: " . $rasp_id;
$myVal = new Values();
$myVal->distance = $distance_temp;
$myVal->rasp_id = $rasp_id;
$myVal->rssi = $rssi;
$flag = false;
if (isset($distance[$beacon_id])) {
if (count($distance[$beacon_id]) > 0) {
for ($i = 0; $i < count($distance[$beacon_id]); $i++) {
$myTempVal = $distance[$beacon_id][$i];
if (($myTempVal->rasp_id) == $rasp_id) {
$flag = true;
$distance[$beacon_id][$i] = $myVal;
break;
}
}
if (!$flag) {
$distance[$beacon_id][$totalbicken[$beacon_id]] = $myVal;
}
} else {
$distance[$beacon_id][$totalbicken[$beacon_id]] = $myVal;
}
} else {
$distance[$beacon_id][$totalbicken[$beacon_id]] = $myVal;
}
if (count($distance[$beacon_id]) > 2) {
/*$data = triangulate($rasp[$distance[$beacon_id][0]->rasp_id], $distance[$beacon_id][0]->distance,
$rasp[$distance[$beacon_id][1]->rasp_id], $distance[$beacon_id][1]->distance,
$rasp[$distance[$beacon_id][2]->rasp_id], $distance[$beacon_id][2]->distance);*/
fwrite ($fp,"Before Triangulation!". "\n");
$data = getTrilateration($rasp[$distance[$beacon_id][0]->rasp_id], $distance[$beacon_id][0]->distance,
$rasp[$distance[$beacon_id][1]->rasp_id], $distance[$beacon_id][1]->distance,
$rasp[$distance[$beacon_id][2]->rasp_id], $distance[$beacon_id][2]->distance);
fwrite ($fp,"End Triangulation!". "\n");
$response_text = mask(json_encode(array('type' => 'message', 'action' => 'distance',
'beacon_id' => $beacon_id, 'distance' => $distance[$beacon_id], 'coordinates' => $data)));
fwrite ($fp,"Response: ". $response_text . "\n");
send_message($response_text);
}
}
}
fwrite ($fp,"Break!: ". "\n");
break 2; //exist this loop*/
}
}
} catch (Exception $e) {
fwrite ($fp,"Exception: done! \n");
fwrite ($fp,"Exception: ". $e->getMessage(). "\n");
echo "Exception:" . $e->getMessage();
}
$buf = @socket_read($changed_socket, 1024, PHP_NORMAL_READ);
if ($buf === false) { // check disconnected client
// remove client for $clients array
try {
$found_socket = array_search($changed_socket, $clients);
socket_getpeername($changed_socket, $ip);
unset($clients[$found_socket]);
//notify all users about disconnected connection
$response = mask(json_encode(array('type' => 'system', 'message' => $ip . ' disconnected')));
send_message($response);
} catch (Exception $e) {
echo "Exception:" . $e;
}
}
}
}
// close the listening socket
socket_close($socket);
$fclose ($fp);
function send_message($msg)
{
global $clients;
foreach ($clients as $changed_socket) {
@socket_write($changed_socket, $msg, strlen($msg));
}
return true;
}
function send_message_socket($msg, $changed_socket)
{
@socket_write($changed_socket, $msg, strlen($msg));
return true;
}
//Unmask incoming framed message
function unmask($text)
{
$length = ord($text[1]) & 127;
if ($length == 126) {
$masks = substr($text, 4, 4);
$data = substr($text, 8);
} elseif ($length == 127) {
$masks = substr($text, 10, 4);
$data = substr($text, 14);
} else {
$masks = substr($text, 2, 4);
$data = substr($text, 6);
}
$text = "";
for ($i = 0; $i < strlen($data); ++$i) {
$text .= $data[$i] ^ $masks[$i % 4];
}
return $text;
}
//Encode message for transfer to client.
function mask($text)
{
$b1 = 0x80 | (0x1 & 0x0f);
$length = strlen($text);
if ($length <= 125) {
$header = pack('CC', $b1, $length);
} elseif ($length > 125 && $length < 65536) {
$header = pack('CCn', $b1, 126, $length);
} elseif ($length >= 65536) {
$header = pack('CCNN', $b1, 127, $length);
}
return $header . $text;
}
//handshake new client.
function perform_handshaking($receved_header, $client_conn, $host, $port)
{
$headers = array();
$lines = preg_split("/\r\n/", $receved_header);
foreach ($lines as $line) {
$line = chop($line);
if (preg_match('/\A(\S+): (.*)\z/', $line, $matches)) {
$headers[$matches[1]] = $matches[2];
}
}
$secKey = $headers['Sec-WebSocket-Key'];
$secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
//hand shaking header
$upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
"Upgrade: websocket\r\n" .
"Connection: Upgrade\r\n" .
"WebSocket-Origin: $host\r\n" .
"WebSocket-Location: ws://$host:$port/Websocket/shout.php\r\n" .
"Sec-WebSocket-Accept:$secAccept\r\n\r\n";
socket_write($client_conn, $upgrade, strlen($upgrade));
}
Заранее спасибо!