PHPDaemon\Servers\FastCGI\Connection::onRead PHP Method

    public function onRead()
    {
        start:
        if ($this->state === self::STATE_ROOT) {
            $header = $this->readExact(8);
            if ($header === false) {
                return;
            }
            $this->header = unpack('Cver/Ctype/nreqid/nconlen/Cpadlen/Creserved', $header);
            if ($this->header['conlen'] > 0) {
                $this->setWatermark($this->header['conlen'], $this->header['conlen']);
            }
            $type = $this->header['type'];
            $this->header['ttype'] = isset(self::$requestTypes[$type]) ? self::$requestTypes[$type] : $type;
            $rid = $this->header['reqid'];
            $this->state = self::STATE_CONTENT;
        } else {
            $type = $this->header['type'];
            $rid = $this->header['reqid'];
        }
        if ($this->state === self::STATE_CONTENT) {
            $this->content = $this->readExact($this->header['conlen']);
            if ($this->content === false) {
                $this->setWatermark($this->header['conlen'], $this->header['conlen']);
                return;
            }
            if ($this->header['padlen'] > 0) {
                $this->setWatermark($this->header['padlen'], $this->header['padlen']);
            }
            $this->state = self::STATE_PADDING;
        }
        if ($this->state === self::STATE_PADDING) {
            $pad = $this->readExact($this->header['padlen']);
            if ($pad === false) {
                return;
            }
        }
        $this->setWatermark(8, 0xffffff);
        $this->state = self::STATE_ROOT;
        //        /*Daemon::log('[DEBUG] FastCGI-record ' . $this->header['ttype'] . '). Request ID: ' . $rid
        //                . '. Content length: ' . $this->header['conlen'] . ' (' . mb_orig_strlen($this->content) . ') Padding length: ' . $this->header['padlen']
        //                . ' (' . mb_orig_strlen($pad) . ')');*/
        if ($type === self::FCGI_BEGIN_REQUEST) {
            $u = unpack('nrole/Cflags', $this->content);
            $req = new \stdClass();
            $req->attrs = new \stdClass();
            $req->attrs->request = [];
            $req->attrs->get = [];
            $req->attrs->post = [];
            $req->attrs->cookie = [];
            $req->attrs->server = [];
            $req->attrs->files = [];
            $req->attrs->session = null;
            $req->attrs->role = self::$roles[$u['role']];
            $req->attrs->flags = $u['flags'];
            $req->attrs->id = $this->header['reqid'];
            $req->attrs->paramsDone = false;
            $req->attrs->inputDone = false;
            $req->attrs->input = new \PHPDaemon\HTTPRequest\Input();
            $req->attrs->chunked = false;
            $req->attrs->noHttpVer = true;
            $req->queueId = $rid;
            $this->requests[$rid] = $req;
        } elseif (isset($this->requests[$rid])) {
            $req = $this->requests[$rid];
        } else {
            Daemon::log('Unexpected FastCGI-record #' . $this->header['type'] . ' (' . $this->header['ttype'] . '). Request ID: ' . $rid . '.');
            return;
        }
        if ($type === self::FCGI_ABORT_REQUEST) {
            $req->abort();
        } elseif ($type === self::FCGI_PARAMS) {
            if ($this->content === '') {
                if (!isset($req->attrs->server['REQUEST_TIME'])) {
                    $req->attrs->server['REQUEST_TIME'] = time();
                }
                if (!isset($req->attrs->server['REQUEST_TIME_FLOAT'])) {
                    $req->attrs->server['REQUEST_TIME_FLOAT'] = microtime(true);
                }
                $req->attrs->paramsDone = true;
                $req = Daemon::$appResolver->getRequest($req, $this);
                if ($req instanceof \stdClass) {
                    $this->endRequest($req, 0, 0);
                    unset($this->requests[$rid]);
                } else {
                    if ($this->pool->config->sendfile->value && (!$this->pool->config->sendfileonlybycommand->value || isset($req->attrs->server['USE_SENDFILE'])) && !isset($req->attrs->server['DONT_USE_SENDFILE'])) {
                        $fn = tempnam($this->pool->config->sendfiledir->value, $this->pool->config->sendfileprefix->value);
                        $req->sendfp = fopen($fn, 'wb');
                        $req->header('X-Sendfile: ' . $fn);
                    }
                    $this->requests[$rid] = $req;
                    $req->callInit();
                }
            } else {
                $p = 0;
                while ($p < $this->header['conlen']) {
                    if (($namelen = ord($this->content[$p])) < 128) {
                        ++$p;
                    } else {
                        $u = unpack('Nlen', chr(ord($this->content[$p]) & 0x7f) . mb_orig_substr($this->content, $p + 1, 3));
                        $namelen = $u['len'];
                        $p += 4;
                    }
                    if (($vlen = ord($this->content[$p])) < 128) {
                        ++$p;
                    } else {
                        $u = unpack('Nlen', chr(ord($this->content[$p]) & 0x7f) . mb_orig_substr($this->content, $p + 1, 3));
                        $vlen = $u['len'];
                        $p += 4;
                    }
                    $req->attrs->server[mb_orig_substr($this->content, $p, $namelen)] = mb_orig_substr($this->content, $p + $namelen, $vlen);
                    $p += $namelen + $vlen;
                }
            }
        } elseif ($type === self::FCGI_STDIN) {
            if (!$req->attrs->input) {
                goto start;
            }
            if ($this->content === '') {
                $req->attrs->input->sendEOF();
            } else {
                $req->attrs->input->readFromString($this->content);
            }
        }
        if ($req->attrs->inputDone && $req->attrs->paramsDone) {
            $order = $this->pool->variablesOrder ?: 'GPC';
            for ($i = 0, $s = mb_orig_strlen($order); $i < $s; ++$i) {
                $char = $order[$i];
                if ($char === 'G' && is_array($req->attrs->get)) {
                    $req->attrs->request += $req->attrs->get;
                } elseif ($char === 'P' && is_array($req->attrs->post)) {
                    $req->attrs->request += $req->attrs->post;
                } elseif ($char === 'C' && is_array($req->attrs->cookie)) {
                    $req->attrs->request += $req->attrs->cookie;
                }
            }
            Daemon::$process->timeLastActivity = time();
        }
        goto start;
    }