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<?php |
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namespace PHPDaemon\Servers\HTTP; |
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use PHPDaemon\Core\Daemon; |
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use PHPDaemon\Core\Debug; |
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use PHPDaemon\Core\Timer; |
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use PHPDaemon\FS\FileSystem; |
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use PHPDaemon\HTTPRequest\Generic; |
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use PHPDaemon\HTTPRequest\Input; |
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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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protected $initialLowMark = 1; |
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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 $initialHighMark = 8192; |
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protected $timeout = 45; |
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protected $req; |
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protected $keepaliveTimer; |
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protected $freedBeforeProcessing = false; |
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/** |
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* @TODO DESCR |
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*/ |
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const STATE_FIRSTLINE = 1; |
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/** |
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* @TODO DESCR |
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*/ |
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const STATE_HEADERS = 2; |
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/** |
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* @TODO DESCR |
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*/ |
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const STATE_CONTENT = 3; |
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/** |
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* @TODO DESCR |
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*/ |
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const STATE_PROCESSING = 4; |
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protected $EOL = "\r\n"; |
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protected $currentHeader; |
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protected $policyReqNotFound = false; |
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/** |
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* Check if Sendfile is supported here. |
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* @return boolean Succes |
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*/ |
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public function checkSendfileCap() |
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{ // @DISCUSS |
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return true; |
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} |
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/** |
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* Check if Chunked encoding is supported here. |
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* @return boolean Succes |
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*/ |
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public function checkChunkedEncCap() |
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{ // @DISCUSS |
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return true; |
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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 $this->pool->config->keepalive->value; |
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} |
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/** |
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* Read first line of HTTP request |
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* @return boolean|null Success |
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*/ |
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protected function httpReadFirstline() |
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{ |
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//D($this->look(2048)); |
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if (($l = $this->readline()) === null) { |
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return null; |
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} |
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$e = explode(' ', $l); |
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$u = isset($e[1]) ? parse_url($e[1]) : false; |
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if ($u === false) { |
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$this->badRequest($this->req); |
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return false; |
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} |
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if (!isset($u['path'])) { |
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$u['path'] = null; |
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} |
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if (isset($u['host'])) { |
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$this->req->attrs->server['HTTP_HOST'] = $u['host']; |
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} |
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$srv = & $this->req->attrs->server; |
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$srv['REQUEST_METHOD'] = $e[0]; |
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$srv['REQUEST_TIME'] = time(); |
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$srv['REQUEST_TIME_FLOAT'] = microtime(true); |
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$srv['REQUEST_URI'] = $u['path'] . (isset($u['query']) ? '?' . $u['query'] : ''); |
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$srv['DOCUMENT_URI'] = $u['path']; |
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$srv['PHP_SELF'] = $u['path']; |
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$srv['QUERY_STRING'] = isset($u['query']) ? $u['query'] : null; |
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$srv['SCRIPT_NAME'] = $srv['DOCUMENT_URI'] = isset($u['path']) ? $u['path'] : '/'; |
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$srv['SERVER_PROTOCOL'] = isset($e[2]) ? $e[2] : 'HTTP/1.1'; |
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$srv['REMOTE_ADDR'] = $this->host; |
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$srv['REMOTE_PORT'] = $this->port; |
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$srv['HTTPS'] = $this->ssl ? 'on' : 'off'; |
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return true; |
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} |
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/** |
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* Read headers line-by-line |
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* @return boolean|null Success |
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*/ |
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protected function httpReadHeaders() |
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{ |
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while (($l = $this->readLine()) !== null) { |
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if ($l === '') { |
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return true; |
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} |
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$e = explode(': ', $l); |
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if (isset($e[1])) { |
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$this->currentHeader = 'HTTP_' . strtoupper(strtr($e[0], Generic::$htr)); |
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$this->req->attrs->server[$this->currentHeader] = $e[1]; |
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View Code Duplication |
} elseif (($e[0][0] === "\t" || $e[0][0] === "\x20") && $this->currentHeader) { |
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// multiline header continued |
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$this->req->attrs->server[$this->currentHeader] .= $e[0]; |
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} else { |
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// whatever client speaks is not HTTP anymore |
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$this->badRequest($this->req); |
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return false; |
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} |
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} |
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return null; |
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} |
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/** |
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* Creates new Request object |
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* @return \stdClass |
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*/ |
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protected function newRequest() |
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{ |
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$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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$req->attrs->paramsDone = false; |
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$req->attrs->inputDone = false; |
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$req->attrs->input = new Input(); |
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$req->attrs->inputReaded = 0; |
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$req->attrs->chunked = false; |
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$req->upstream = $this; |
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return $req; |
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} |
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/** |
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* Process HTTP headers |
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* @return boolean Success |
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*/ |
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protected function httpProcessHeaders() |
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{ |
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$this->req->attrs->paramsDone = true; |
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if ( |
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isset($this->req->attrs->server['HTTP_CONNECTION']) && preg_match('~(?:^|\W)Upgrade(?:\W|$)~i', $this->req->attrs->server['HTTP_CONNECTION']) |
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&& isset($this->req->attrs->server['HTTP_UPGRADE']) && (strtolower($this->req->attrs->server['HTTP_UPGRADE']) === 'websocket') |
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) { |
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if ($this->pool->WS) { |
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$this->pool->WS->inheritFromRequest($this->req, $this); |
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} |
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return false; |
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} |
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$this->req = Daemon::$appResolver->getRequest($this->req, $this, isset($this->pool->config->responder->value) ? $this->pool->config->responder->value : null); |
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if ($this->req instanceof \stdClass) { |
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$this->endRequest($this->req, 0, 0); |
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return false; |
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} else { |
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if ($this->pool->config->sendfile->value && (!$this->pool->config->sendfileonlybycommand->value || isset($this->req->attrs->server['USE_SENDFILE'])) |
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195
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&& !isset($this->req->attrs->server['DONT_USE_SENDFILE']) |
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) { |
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197
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$req = $this->req; |
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198
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FileSystem::tempnam($this->pool->config->sendfiledir->value, $this->pool->config->sendfileprefix->value, function ($fn) use ($req) { |
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199
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FileSystem::open($fn, 'wb', function ($file) use ($req) { |
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200
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$req->sendfp = $file; |
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201
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}); |
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$req->header('X-Sendfile: ' . $fn); |
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}); |
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} |
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205
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$this->req->callInit(); |
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206
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} |
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207
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return true; |
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208
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} |
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209
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210
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/* Used for debugging protocol issues */ |
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211
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/*public function readline() { |
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212
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$s = parent::readline(); |
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213
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Daemon::log(Debug::json($s)); |
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return $s; |
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215
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} |
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216
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217
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public function write($s) { |
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218
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Daemon::log(Debug::json($s)); |
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parent::write($s); |
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220
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}* |
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221
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222
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/** |
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223
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* Called when new data received. |
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224
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* @return void |
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225
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*/ |
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226
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227
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/** |
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228
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* onRead |
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* @return void |
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230
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*/ |
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protected function onRead() |
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{ |
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View Code Duplication |
if (!$this->policyReqNotFound) { |
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234
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$d = $this->drainIfMatch("<policy-file-request/>\x00"); |
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235
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if ($d === null) { // partially match |
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return; |
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237
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} |
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238
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if ($d) { |
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239
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if (($FP = \PHPDaemon\Servers\FlashPolicy\Pool::getInstance($this->pool->config->fpsname->value, false)) && $FP->policyData) { |
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240
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$this->write($FP->policyData . "\x00"); |
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241
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} |
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242
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$this->finish(); |
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return; |
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244
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} else { |
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245
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$this->policyReqNotFound = true; |
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246
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} |
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247
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} |
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248
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start: |
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249
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if ($this->finished) { |
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250
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return; |
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251
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} |
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252
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if ($this->state === self::STATE_ROOT) { |
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253
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if ($this->req !== null) { // we have to wait the current request |
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254
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return; |
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255
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} |
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256
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if (!$this->req = $this->newRequest()) { |
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257
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$this->finish(); |
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258
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return; |
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259
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} |
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260
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$this->state = self::STATE_FIRSTLINE; |
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261
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} else { |
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262
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if (!$this->req || $this->state === self::STATE_PROCESSING) { |
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263
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if (isset($this->bev) && ($this->bev->input->length > 0)) { |
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264
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Daemon::log('Unexpected input (HTTP request, ' . $this->state . '): ' . json_encode($this->read($this->bev->input->length))); |
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265
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} |
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266
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return; |
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267
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} |
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268
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} |
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269
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270
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if ($this->state === self::STATE_FIRSTLINE) { |
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271
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if (!$this->httpReadFirstline()) { |
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272
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return; |
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273
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} |
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274
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Timer::remove($this->keepaliveTimer); |
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275
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$this->state = self::STATE_HEADERS; |
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276
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} |
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277
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278
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View Code Duplication |
if ($this->state === self::STATE_HEADERS) { |
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279
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if (!$this->httpReadHeaders()) { |
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280
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return; |
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281
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} |
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282
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if (!$this->httpProcessHeaders()) { |
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283
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$this->finish(); |
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284
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return; |
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285
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} |
|
286
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$this->state = self::STATE_CONTENT; |
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287
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} |
|
288
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if ($this->state === self::STATE_CONTENT) { |
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289
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if (!isset($this->req->attrs->input) || !$this->req->attrs->input) { |
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290
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$this->finish(); |
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291
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return; |
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292
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} |
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293
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$this->req->attrs->input->readFromBuffer($this->bev->input); |
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294
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if (!$this->req->attrs->input->isEOF()) { |
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295
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return; |
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296
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} |
|
297
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$this->state = self::STATE_PROCESSING; |
|
298
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if ($this->freedBeforeProcessing) { |
|
299
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$this->freeRequest($this->req); |
|
300
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$this->freedBeforeProcessing = false; |
|
301
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goto start; |
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302
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} |
|
303
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$this->freezeInput(); |
|
304
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if ($this->req->attrs->inputDone && $this->req->attrs->paramsDone) { |
|
305
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if ($this->pool->variablesOrder === null) { |
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306
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$this->req->attrs->request = $this->req->attrs->get + $this->req->attrs->post + $this->req->attrs->cookie; |
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307
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} else { |
|
308
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for ($i = 0, $s = mb_orig_strlen($this->pool->variablesOrder); $i < $s; ++$i) { |
|
309
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|
|
$char = $this->pool->variablesOrder[$i]; |
|
310
|
|
|
if ($char === 'G') { |
|
311
|
|
View Code Duplication |
if (is_array($this->req->attrs->get)) { |
|
|
|
|
|
|
312
|
|
|
$this->req->attrs->request += $this->req->attrs->get; |
|
313
|
|
|
} |
|
314
|
|
View Code Duplication |
} elseif ($char === 'P') { |
|
|
|
|
|
|
315
|
|
|
if (is_array($this->req->attrs->post)) { |
|
316
|
|
|
$this->req->attrs->request += $this->req->attrs->post; |
|
317
|
|
|
} |
|
318
|
|
|
} elseif ($char === 'C') { |
|
319
|
|
View Code Duplication |
if (is_array($this->req->attrs->cookie)) { |
|
|
|
|
|
|
320
|
|
|
$this->req->attrs->request += $this->req->attrs->cookie; |
|
321
|
|
|
} |
|
322
|
|
|
} |
|
323
|
|
|
} |
|
324
|
|
|
} |
|
325
|
|
|
Daemon::$process->timeLastActivity = time(); |
|
326
|
|
|
} |
|
327
|
|
|
} |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
/** |
|
331
|
|
|
* Handles the output from downstream requests. |
|
332
|
|
|
* @param object $req \PHPDaemon\Request\Generic. |
|
333
|
|
|
* @param string $s The output. |
|
334
|
|
|
* @return boolean Success |
|
335
|
|
|
*/ |
|
336
|
|
|
public function requestOut($req, $s) |
|
337
|
|
|
{ |
|
338
|
|
|
if ($this->write($s) === false) { |
|
339
|
|
|
$req->abort(); |
|
340
|
|
|
return false; |
|
341
|
|
|
} |
|
342
|
|
|
return true; |
|
343
|
|
|
} |
|
344
|
|
|
|
|
345
|
|
|
/** |
|
346
|
|
|
* End request |
|
347
|
|
|
* @return void |
|
348
|
|
|
*/ |
|
349
|
|
|
public function endRequest($req, $appStatus, $protoStatus) |
|
350
|
|
|
{ |
|
351
|
|
|
if ($protoStatus === -1) { |
|
352
|
|
|
$this->close(); |
|
353
|
|
|
} else { |
|
354
|
|
|
if ($req->attrs->chunked) { |
|
355
|
|
|
$this->write("0\r\n\r\n"); |
|
356
|
|
|
} |
|
357
|
|
|
|
|
358
|
|
|
if (isset($req->keepalive) && $req->keepalive && $this->pool->config->keepalive->value) { |
|
359
|
|
|
$this->keepaliveTimer = setTimeout(function ($timer) { |
|
|
|
|
|
|
360
|
|
|
$this->finish(); |
|
361
|
|
|
}, $this->pool->config->keepalive->value); |
|
362
|
|
|
} else { |
|
363
|
|
|
$this->finish(); |
|
364
|
|
|
} |
|
365
|
|
|
} |
|
366
|
|
|
$this->freeRequest($req); |
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
/** |
|
370
|
|
|
* Frees this request |
|
371
|
|
|
* @return void |
|
372
|
|
|
*/ |
|
373
|
|
|
public function freeRequest($req) |
|
374
|
|
|
{ |
|
375
|
|
|
if ($this->state !== self::STATE_PROCESSING) { |
|
376
|
|
|
$this->freedBeforeProcessing = true; |
|
377
|
|
|
return; |
|
378
|
|
|
} |
|
379
|
|
|
$req->attrs->input = null; |
|
380
|
|
|
$this->req = null; |
|
381
|
|
|
$this->state = self::STATE_ROOT; |
|
382
|
|
|
$this->unfreezeInput(); |
|
383
|
|
|
} |
|
384
|
|
|
|
|
385
|
|
|
/** |
|
386
|
|
|
* Called when connection is finished |
|
387
|
|
|
* @return void |
|
388
|
|
|
*/ |
|
389
|
|
|
public function onFinish() |
|
390
|
|
|
{ |
|
391
|
|
|
Timer::remove($this->keepaliveTimer); |
|
392
|
|
|
if ($this->req !== null && $this->req instanceof Generic) { |
|
393
|
|
|
if (!$this->req->isFinished()) { |
|
394
|
|
|
$this->req->abort(); |
|
395
|
|
|
} |
|
396
|
|
|
} |
|
397
|
|
|
$this->req = null; |
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
/** |
|
401
|
|
|
* Send Bad request |
|
402
|
|
|
* @return void |
|
403
|
|
|
*/ |
|
404
|
|
|
public function badRequest($req) |
|
405
|
|
|
{ |
|
406
|
|
|
$this->state = self::STATE_ROOT; |
|
407
|
|
|
$this->write("400 Bad Request\r\n\r\n<html><head><title>400 Bad Request</title></head><body bgcolor=\"white\"><center><h1>400 Bad Request</h1></center></body></html>"); |
|
|
|
|
|
|
408
|
|
|
$this->finish(); |
|
409
|
|
|
} |
|
410
|
|
|
} |
|
411
|
|
|
|
This check looks
TODOcomments that have been left in the code.``TODO``s show that something is left unfinished and should be attended to.