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<?php |
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namespace PHPDaemon\Servers\FastCGI; |
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use PHPDaemon\Core\Daemon; |
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use PHPDaemon\Request\IRequestUpstream; |
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/** |
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* @package NetworkServers |
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* @subpackage Base |
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* @author Vasily Zorin <[email protected]> |
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*/ |
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class Connection extends \PHPDaemon\Network\Connection implements IRequestUpstream |
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{ |
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const FCGI_BEGIN_REQUEST = 1; |
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const FCGI_ABORT_REQUEST = 2; |
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const FCGI_END_REQUEST = 3; |
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const FCGI_PARAMS = 4; |
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const FCGI_STDIN = 5; |
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const FCGI_STDOUT = 6; |
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const FCGI_STDERR = 7; |
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const FCGI_DATA = 8; |
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const FCGI_GET_VALUES = 9; |
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const FCGI_GET_VALUES_RESULT = 10; |
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const FCGI_UNKNOWN_TYPE = 11; |
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const FCGI_RESPONDER = 1; |
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const FCGI_AUTHORIZER = 2; |
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const FCGI_FILTER = 3; |
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const STATE_CONTENT = 1; |
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const STATE_PADDING = 2; |
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protected static $roles = [ |
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self::FCGI_RESPONDER => 'FCGI_RESPONDER', |
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self::FCGI_AUTHORIZER => 'FCGI_AUTHORIZER', |
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self::FCGI_FILTER => 'FCGI_FILTER', |
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]; |
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protected static $requestTypes = [ |
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self::FCGI_BEGIN_REQUEST => 'FCGI_BEGIN_REQUEST', |
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self::FCGI_ABORT_REQUEST => 'FCGI_ABORT_REQUEST', |
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self::FCGI_END_REQUEST => 'FCGI_END_REQUEST', |
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self::FCGI_PARAMS => 'FCGI_PARAMS', |
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self::FCGI_STDIN => 'FCGI_STDIN', |
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self::FCGI_STDOUT => 'FCGI_STDOUT', |
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self::FCGI_STDERR => 'FCGI_STDERR', |
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self::FCGI_DATA => 'FCGI_DATA', |
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self::FCGI_GET_VALUES => 'FCGI_GET_VALUES', |
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self::FCGI_GET_VALUES_RESULT => 'FCGI_GET_VALUES_RESULT', |
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self::FCGI_UNKNOWN_TYPE => 'FCGI_UNKNOWN_TYPE', |
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]; |
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public $timeout = 180; |
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/** |
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* @var integer initial value of the minimal amout of bytes in buffer |
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*/ |
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protected $lowMark = 8; |
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/** |
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* @var integer initial value of the maximum amout of bytes in buffer |
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*/ |
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protected $highMark = 0xFFFFFF; |
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protected $requests = []; |
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protected $header; |
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protected $content; |
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/** |
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* Is this upstream suitable for sendfile()? |
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* @return bool |
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*/ |
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public function checkSendfileCap() |
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{ |
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// @todo DISCUSS |
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return false; |
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} |
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/** |
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* Is this upstream suitable for chunked encoding? |
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* @return bool |
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*/ |
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public function checkChunkedEncCap() |
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{ |
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// @todo DISCUSS |
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return false; |
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} |
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/** |
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* @TODO |
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* @return integer |
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*/ |
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public function getKeepaliveTimeout() |
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{ |
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return $this->pool->config->keepalive->value; |
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} |
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/** |
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* Called when new data received |
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* @return void |
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*/ |
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public function onRead() |
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{ |
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start: |
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if ($this->state === self::STATE_ROOT) { |
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$header = $this->readExact(8); |
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if ($header === false) { |
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return; |
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} |
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$this->header = unpack('Cver/Ctype/nreqid/nconlen/Cpadlen/Creserved', $header); |
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if ($this->header['conlen'] > 0) { |
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$this->setWatermark($this->header['conlen'], $this->header['conlen']); |
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} |
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$type = $this->header['type']; |
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$this->header['ttype'] = isset(self::$requestTypes[$type]) ? self::$requestTypes[$type] : $type; |
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$rid = $this->header['reqid']; |
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$this->state = self::STATE_CONTENT; |
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} else { |
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$type = $this->header['type']; |
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$rid = $this->header['reqid']; |
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} |
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if ($this->state === self::STATE_CONTENT) { |
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$this->content = $this->readExact($this->header['conlen']); |
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if ($this->content === false) { |
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$this->setWatermark($this->header['conlen'], $this->header['conlen']); |
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return; |
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} |
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if ($this->header['padlen'] > 0) { |
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$this->setWatermark($this->header['padlen'], $this->header['padlen']); |
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} |
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$this->state = self::STATE_PADDING; |
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} |
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if ($this->state === self::STATE_PADDING) { |
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$pad = $this->readExact($this->header['padlen']); |
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if ($pad === false) { |
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return; |
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} |
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} |
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$this->setWatermark(8, 0xFFFFFF); |
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$this->state = self::STATE_ROOT; |
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// /*Daemon::log('[DEBUG] FastCGI-record ' . $this->header['ttype'] . '). Request ID: ' . $rid |
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// . '. Content length: ' . $this->header['conlen'] . ' (' . mb_orig_strlen($this->content) . ') Padding length: ' . $this->header['padlen'] |
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// . ' (' . mb_orig_strlen($pad) . ')');*/ |
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if ($type === self::FCGI_BEGIN_REQUEST) { |
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$u = unpack('nrole/Cflags', $this->content); |
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$req = new \stdClass(); |
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$req->attrs = new \stdClass; |
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$req->attrs->request = []; |
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$req->attrs->get = []; |
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$req->attrs->post = []; |
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$req->attrs->cookie = []; |
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$req->attrs->server = []; |
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$req->attrs->files = []; |
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$req->attrs->session = null; |
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$req->attrs->role = self::$roles[$u['role']]; |
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$req->attrs->flags = $u['flags']; |
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$req->attrs->id = $this->header['reqid']; |
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$req->attrs->paramsDone = false; |
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$req->attrs->inputDone = false; |
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$req->attrs->input = new \PHPDaemon\HTTPRequest\Input(); |
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$req->attrs->chunked = false; |
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$req->attrs->noHttpVer = true; |
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$req->queueId = $rid; |
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$this->requests[$rid] = $req; |
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} elseif (isset($this->requests[$rid])) { |
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$req = $this->requests[$rid]; |
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} else { |
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Daemon::log('Unexpected FastCGI-record #' . $this->header['type'] . ' (' . $this->header['ttype'] . '). Request ID: ' . $rid . '.'); |
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return; |
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} |
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if ($type === self::FCGI_ABORT_REQUEST) { |
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$req->abort(); |
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} elseif ($type === self::FCGI_PARAMS) { |
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if ($this->content === '') { |
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if (!isset($req->attrs->server['REQUEST_TIME'])) { |
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$req->attrs->server['REQUEST_TIME'] = time(); |
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} |
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if (!isset($req->attrs->server['REQUEST_TIME_FLOAT'])) { |
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$req->attrs->server['REQUEST_TIME_FLOAT'] = microtime(true); |
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} |
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$req->attrs->paramsDone = true; |
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$req = Daemon::$appResolver->getRequest($req, $this); |
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if ($req instanceof \stdClass) { |
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$this->endRequest($req, 0, 0); |
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unset($this->requests[$rid]); |
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} else { |
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if ($this->pool->config->sendfile->value |
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&& ( |
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!$this->pool->config->sendfileonlybycommand->value |
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|| isset($req->attrs->server['USE_SENDFILE']) |
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) |
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&& !isset($req->attrs->server['DONT_USE_SENDFILE']) |
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) { |
200
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$fn = tempnam( |
201
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$this->pool->config->sendfiledir->value, |
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$this->pool->config->sendfileprefix->value |
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); |
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205
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$req->sendfp = fopen($fn, 'wb'); |
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$req->header('X-Sendfile: ' . $fn); |
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} |
208
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209
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$this->requests[$rid] = $req; |
210
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211
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$req->callInit(); |
212
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} |
213
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} else { |
214
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$p = 0; |
215
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216
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while ($p < $this->header['conlen']) { |
217
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View Code Duplication |
if (($namelen = ord($this->content{$p})) < 128) { |
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++$p; |
219
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} else { |
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$u = unpack( |
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'Nlen', |
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chr(ord($this->content{$p}) & 0x7f) . mb_orig_substr($this->content, $p + 1, 3) |
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); |
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$namelen = $u['len']; |
225
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$p += 4; |
226
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} |
227
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228
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View Code Duplication |
if (($vlen = ord($this->content{$p})) < 128) { |
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229
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++$p; |
230
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} else { |
231
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$u = unpack( |
232
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'Nlen', |
233
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chr(ord($this->content{$p}) & 0x7f) . mb_orig_substr($this->content, $p + 1, 3) |
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); |
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$vlen = $u['len']; |
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$p += 4; |
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} |
238
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239
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$req->attrs->server[mb_orig_substr($this->content, $p, $namelen)] = mb_orig_substr( |
240
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$this->content, |
241
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$p + $namelen, |
242
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$vlen |
243
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); |
244
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$p += $namelen + $vlen; |
245
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} |
246
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} |
247
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} elseif ($type === self::FCGI_STDIN) { |
248
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if (!$req->attrs->input) { |
249
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goto start; |
250
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} |
251
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if ($this->content === '') { |
252
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$req->attrs->input->sendEOF(); |
253
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} else { |
254
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$req->attrs->input->readFromString($this->content); |
255
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} |
256
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} |
257
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258
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if ($req->attrs->inputDone && $req->attrs->paramsDone) { |
259
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$order = $this->pool->variablesOrder ?: 'GPC'; |
260
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for ($i = 0, $s = mb_orig_strlen($order); $i < $s; ++$i) { |
261
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$char = $order[$i]; |
262
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263
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if ($char === 'G' && is_array($req->attrs->get)) { |
264
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$req->attrs->request += $req->attrs->get; |
265
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} elseif ($char === 'P' && is_array($req->attrs->post)) { |
266
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$req->attrs->request += $req->attrs->post; |
267
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} elseif ($char === 'C' && is_array($req->attrs->cookie)) { |
268
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$req->attrs->request += $req->attrs->cookie; |
269
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} |
270
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} |
271
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272
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Daemon::$process->timeLastActivity = time(); |
273
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} |
274
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goto start; |
275
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} |
276
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277
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/** |
278
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* Handles the output from downstream requests |
279
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* @param object $req |
280
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* @param string $appStatus |
281
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* @param string $protoStatus |
282
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* @return void |
283
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*/ |
284
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public function endRequest($req, $appStatus, $protoStatus) |
285
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{ |
286
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$c = pack('NC', $appStatus, $protoStatus) // app status, protocol status |
287
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. "\x00\x00\x00"; |
288
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|
289
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$this->write( |
290
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"\x01" // protocol version |
291
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. "\x03" // record type (END_REQUEST) |
292
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. pack('nn', $req->attrs->id, mb_orig_strlen($c)) // id, content length |
293
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. "\x00" // padding length |
294
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. "\x00" // reserved |
295
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. $c // content |
296
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); |
297
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298
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if ($protoStatus === -1) { |
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299
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$this->close(); |
300
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} elseif (!$this->pool->config->keepalive->value) { |
301
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$this->finish(); |
302
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} |
303
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} |
304
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|
|
|
305
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|
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/** |
306
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* Handles the output from downstream requests |
307
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* @param object $req Request |
308
|
|
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* @param string $out The output |
309
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* @return boolean Success |
310
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*/ |
311
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public function requestOut($req, $out) |
312
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{ |
313
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$cs = $this->pool->config->chunksize->value; |
314
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if (mb_orig_strlen($out) > $cs) { |
315
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while (($ol = mb_orig_strlen($out)) > 0) { |
316
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$l = min($cs, $ol); |
317
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if ($this->sendChunk($req, mb_orig_substr($out, 0, $l)) === false) { |
318
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$req->abort(); |
319
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return false; |
320
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} |
321
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$out = mb_orig_substr($out, $l); |
322
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} |
323
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} elseif ($this->sendChunk($req, $out) === false) { |
324
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$req->abort(); |
325
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return false; |
326
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} |
327
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return true; |
328
|
|
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} |
329
|
|
|
|
330
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|
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/** |
331
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* Sends a chunk |
332
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|
|
* @param object $req Request |
333
|
|
|
* @param string $chunk Data |
334
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* @return bool |
335
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*/ |
336
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public function sendChunk($req, $chunk) |
337
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|
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{ |
338
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$packet = "\x01" // protocol version |
339
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. "\x06" // record type (STDOUT) |
340
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. pack( |
341
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'nn', |
342
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$req->attrs->id, |
343
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|
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mb_orig_strlen($chunk) |
344
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|
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) // id, content length |
345
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|
|
. "\x00" // padding length |
346
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. "\x00";// reserved |
347
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|
348
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|
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return $this->write($packet) && $this->write($chunk); // content |
349
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} |
350
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|
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|
351
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|
|
/** |
352
|
|
|
* Frees request |
353
|
|
|
* @param object $req |
354
|
|
|
*/ |
355
|
|
|
public function freeRequest($req) |
356
|
|
|
{ |
357
|
|
|
$req->attrs->input = null; |
358
|
|
|
unset($this->requests[$req->attrs->id]); |
359
|
|
|
} |
360
|
|
|
|
361
|
|
|
/** |
362
|
|
|
* Send Bad request |
363
|
|
|
* @param object $req |
364
|
|
|
* @return void |
365
|
|
|
*/ |
366
|
|
|
public function badRequest($req) |
367
|
|
|
{ |
368
|
|
|
// @TODO: Implement badRequest() method. |
|
|
|
|
369
|
|
|
} |
370
|
|
|
} |
371
|
|
|
|