AbstractConsumer.php
2 years ago
CurlConsumer.php
2 years ago
FileConsumer.php
2 years ago
SocketConsumer.php
2 years ago
index.php
2 years ago
SocketConsumer.php
163 lines
| 1 | <?php |
| 2 | if (!defined('ABSPATH')) exit; |
| 3 | require_once(dirname(__FILE__) . "/AbstractConsumer.php"); |
| 4 | class ConsumerStrategies_SocketConsumer extends ConsumerStrategies_AbstractConsumer { |
| 5 | private $_host; |
| 6 | private $_endpoint; |
| 7 | private $_connect_timeout; |
| 8 | private $_protocol; |
| 9 | private $_socket; |
| 10 | private $_async; |
| 11 | private $_port; |
| 12 | public function __construct($options = array()) { |
| 13 | parent::__construct($options); |
| 14 | $this->_host = $options['host']; |
| 15 | $this->_endpoint = $options['endpoint']; |
| 16 | $this->_connect_timeout = isset($options['connect_timeout']) ? $options['connect_timeout'] : 5; |
| 17 | $this->_async = isset($options['async']) && $options['async'] === false ? false : true; |
| 18 | if (array_key_exists('use_ssl', $options) && $options['use_ssl'] == true) { |
| 19 | $this->_protocol = "ssl"; |
| 20 | $this->_port = 443; |
| 21 | } else { |
| 22 | $this->_protocol = "tcp"; |
| 23 | $this->_port = 80; |
| 24 | } |
| 25 | } |
| 26 | public function persist($batch) { |
| 27 | $socket = $this->_getSocket(); |
| 28 | if (!is_resource($socket)) { |
| 29 | return false; |
| 30 | } |
| 31 | $data = "data=".$this->_encode($batch); |
| 32 | $body = ""; |
| 33 | $body.= "POST ".$this->_endpoint." HTTP/1.1\r\n"; |
| 34 | $body.= "Host: " . $this->_host . "\r\n"; |
| 35 | $body.= "Content-Type: application/x-www-form-urlencoded\r\n"; |
| 36 | $body.= "Accept: application/json\r\n"; |
| 37 | $body.= "Content-length: " . strlen($data) . "\r\n"; |
| 38 | $body.= "\r\n"; |
| 39 | $body.= $data; |
| 40 | return $this->_write($socket, $body); |
| 41 | } |
| 42 | private function _getSocket() { |
| 43 | if(is_resource($this->_socket)) { |
| 44 | if ($this->_debug()) { |
| 45 | $this->_log("Using existing socket"); |
| 46 | } |
| 47 | return $this->_socket; |
| 48 | } else { |
| 49 | if ($this->_debug()) { |
| 50 | $this->_log("Creating new socket at ".time()); |
| 51 | } |
| 52 | return $this->_createSocket(); |
| 53 | } |
| 54 | } |
| 55 | private function _createSocket($retry = true) { |
| 56 | try { |
| 57 | $socket = pfsockopen($this->_protocol . "://" . $this->_host, $this->_port, $err_no, $err_msg, $this->_connect_timeout); |
| 58 | if ($this->_debug()) { |
| 59 | $this->_log("Opening socket connection to " . $this->_protocol . "://" . $this->_host . ":" . $this->_port); |
| 60 | } |
| 61 | if ($err_no != 0) { |
| 62 | $this->_handleError($err_no, $err_msg); |
| 63 | return $retry == true ? $this->_createSocket(false) : false; |
| 64 | } else { |
| 65 | // cache the socket |
| 66 | $this->_socket = $socket; |
| 67 | return $socket; |
| 68 | } |
| 69 | } catch (Exception $e) { |
| 70 | $this->_handleError($e->getCode(), $e->getMessage()); |
| 71 | return $retry == true ? $this->_createSocket(false) : false; |
| 72 | } |
| 73 | } |
| 74 | private function _destroySocket() { |
| 75 | $socket = $this->_socket; |
| 76 | $this->_socket = null; |
| 77 | fclose($socket); |
| 78 | } |
| 79 | private function _write($socket, $data, $retry = true) { |
| 80 | $bytes_sent = 0; |
| 81 | $bytes_total = strlen($data); |
| 82 | $socket_closed = false; |
| 83 | $success = true; |
| 84 | $max_bytes_per_write = 8192; |
| 85 | // if we have no data to write just return true |
| 86 | if ($bytes_total == 0) { |
| 87 | return true; |
| 88 | } |
| 89 | // try to write the data |
| 90 | while (!$socket_closed && $bytes_sent < $bytes_total) { |
| 91 | try { |
| 92 | $bytes = fwrite($socket, $data, $max_bytes_per_write); |
| 93 | if ($this->_debug()) { |
| 94 | $this->_log("Socket wrote ".$bytes." bytes"); |
| 95 | } |
| 96 | // if we actually wrote data, then remove the written portion from $data left to write |
| 97 | if ($bytes > 0) { |
| 98 | $data = substr($data, $max_bytes_per_write); |
| 99 | } |
| 100 | } catch (Exception $e) { |
| 101 | $this->_handleError($e->getCode(), $e->getMessage()); |
| 102 | $socket_closed = true; |
| 103 | } |
| 104 | if (isset($bytes) && $bytes) { |
| 105 | $bytes_sent += $bytes; |
| 106 | } else { |
| 107 | $socket_closed = true; |
| 108 | } |
| 109 | } |
| 110 | // create a new socket if the current one is closed and retry the message |
| 111 | if ($socket_closed) { |
| 112 | $this->_destroySocket(); |
| 113 | if ($retry) { |
| 114 | if ($this->_debug()) { |
| 115 | $this->_log("Retrying socket write..."); |
| 116 | } |
| 117 | $socket = $this->_getSocket(); |
| 118 | if ($socket) return $this->_write($socket, $data, false); |
| 119 | } |
| 120 | return false; |
| 121 | } |
| 122 | // only wait for the response in debug mode or if we explicitly want to be synchronous |
| 123 | if ($this->_debug() || !$this->_async) { |
| 124 | $res = $this->handleResponse(fread($socket, 2048)); |
| 125 | if ($res["status"] != "200") { |
| 126 | $this->_handleError($res["status"], $res["body"]); |
| 127 | $success = false; |
| 128 | } |
| 129 | } |
| 130 | return $success; |
| 131 | } |
| 132 | private function handleResponse($response) { |
| 133 | $lines = explode("\n", $response); |
| 134 | // extract headers |
| 135 | $headers = array(); |
| 136 | foreach($lines as $line) { |
| 137 | $kvsplit = explode(":", $line); |
| 138 | if (count($kvsplit) == 2) { |
| 139 | $header = $kvsplit[0]; |
| 140 | $value = $kvsplit[1]; |
| 141 | $headers[$header] = trim($value); |
| 142 | } |
| 143 | } |
| 144 | // extract status |
| 145 | $line_one_exploded = explode(" ", $lines[0]); |
| 146 | $status = $line_one_exploded[1]; |
| 147 | // extract body |
| 148 | $body = $lines[count($lines) - 1]; |
| 149 | // if the connection has been closed lets kill the socket |
| 150 | if (isset($headers["Connection"]) and $headers['Connection'] == "close") { |
| 151 | $this->_destroySocket(); |
| 152 | if ($this->_debug()) { |
| 153 | $this->_log("Server told us connection closed so lets destroy the socket so it'll reconnect on next call"); |
| 154 | } |
| 155 | } |
| 156 | $ret = array( |
| 157 | "status" => $status, |
| 158 | "body" => $body, |
| 159 | ); |
| 160 | return $ret; |
| 161 | } |
| 162 | } |
| 163 |