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<?php |
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/* |
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* (c) Alexander Zhukov <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Zbox\UnifiedPush\Utils; |
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/** |
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* Class SocketClient |
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* @package Zbox\UnifiedPush\Utils |
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*/ |
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class SocketClient |
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{ |
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/** |
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* @var int |
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*/ |
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private $addressType; |
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/** |
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* @var string |
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*/ |
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private $transport; |
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/** |
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* @var string |
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*/ |
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private $target; |
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/** |
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* @var int |
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*/ |
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private $targetPort; |
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/** |
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* @var array |
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*/ |
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private $contextOptions = array(); |
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/** |
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* @var bool |
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*/ |
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private $blockingMode = true; |
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/** |
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* @var int |
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*/ |
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private $socketTimeout; |
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/** |
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* @var array |
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*/ |
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private $connectionFlags = array(); |
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/** |
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* @var resource |
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*/ |
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private $streamResource; |
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/** |
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* @param string $target |
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* @param int $targetPort |
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* @param int $addressType |
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*/ |
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public function __construct($target, $targetPort = null, $addressType = AF_INET) |
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{ |
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$this |
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->setAddressType($addressType) |
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->setTarget($target) |
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->setTargetPort($targetPort) |
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; |
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return $this; |
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} |
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/** |
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* Returns address to the socket to connect to |
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* |
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* @return string |
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*/ |
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public function getAddress() |
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{ |
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$isUnix = $this->getAddressType() === AF_UNIX; |
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$address = array(); |
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$address['transport'] = $this->getTransport() . ( $isUnix ? ':///' : '://' ); |
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$address['target'] = $this->getTarget(); |
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$address['port'] = ( $isUnix ? '' : ':' ) . $this->getTargetPort(); |
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return implode('', $address); |
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} |
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/** |
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* Gets address type |
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* |
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* @return int |
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*/ |
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public function getAddressType() |
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{ |
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return $this->addressType; |
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} |
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/** |
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* Sets address type |
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* |
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* @param int $addressType |
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* @return $this |
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*/ |
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public function setAddressType($addressType) |
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{ |
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if (!in_array($addressType, |
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array( |
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AF_INET, |
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AF_INET6, |
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AF_UNIX |
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) |
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)) { |
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throw new \DomainException('Unsupported address type'); |
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} |
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$this->addressType = $addressType; |
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return $this; |
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} |
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/** |
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* Gets socket transport |
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* |
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* @return string |
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*/ |
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public function getTransport() |
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{ |
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return $this->transport; |
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} |
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/** |
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* Defines socket transport |
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* |
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* @param string $transport |
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* @return $this |
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*/ |
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public function setTransport($transport) |
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{ |
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if (!in_array($transport,stream_get_transports())) { |
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throw new \DomainException(sprintf('Unsupported type of transport "%s"', $transport)); |
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} |
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$this->transport = $transport; |
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return $this; |
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} |
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/** |
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* Gets target |
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* |
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* @return string |
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*/ |
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public function getTarget() |
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{ |
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return $this->target; |
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} |
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/** |
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* Sets target portion of the remote socket parameter |
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* |
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* @param string $target |
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* @return $this |
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*/ |
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public function setTarget($target) |
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{ |
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$this->target = $target; |
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return $this; |
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} |
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/** |
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* Gets target port |
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* |
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* @return int |
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*/ |
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public function getTargetPort() |
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{ |
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return $this->targetPort; |
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} |
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/** |
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* Sets target port |
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* |
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* @param int $targetPort |
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* @return $this |
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*/ |
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public function setTargetPort($targetPort) |
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{ |
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if ( |
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$this->getAddressType() != AF_UNIX |
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&& !is_integer($targetPort) |
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) { |
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throw new \InvalidArgumentException('Target port parameter must be an integer'); |
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} |
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$this->targetPort = $targetPort; |
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return $this; |
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} |
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/** |
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* Sets stream context parameters |
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* |
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* @param array $contextOptions |
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* @return $this |
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*/ |
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public function setContextOptions(array $contextOptions) |
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{ |
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$this->contextOptions = $contextOptions; |
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return $this; |
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} |
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/** |
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* Gets stream context parameters |
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* |
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* @return array |
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*/ |
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public function getContextOptions() |
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{ |
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return $this->contextOptions; |
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} |
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/** |
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* Gets blocking mode |
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* |
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* @return boolean |
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*/ |
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public function isBlockingMode() |
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{ |
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return $this->blockingMode; |
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} |
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/** |
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* Sets blocking/non-blocking mode on a stream |
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* |
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* @param boolean $blockingMode |
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* @return $this |
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*/ |
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public function setBlockingMode($blockingMode) |
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{ |
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$this->blockingMode = $blockingMode; |
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return $this; |
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} |
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/** |
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* Gets a socket timeout |
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* |
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* @return int |
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*/ |
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public function getSocketTimeout() |
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{ |
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if (!$this->socketTimeout) { |
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return ini_get("default_socket_timeout"); |
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} |
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return $this->socketTimeout; |
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} |
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/** |
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* Sets a timeout for reading/writing data over the socket |
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* |
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* @param int $socketTimeout |
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* @return $this |
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*/ |
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public function setSocketTimeout($socketTimeout) |
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{ |
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if (!is_integer($socketTimeout)) { |
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throw new \InvalidArgumentException('Socket timeout parameter must be an integer'); |
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} |
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$this->socketTimeout = $socketTimeout; |
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return $this; |
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} |
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/** |
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* Gets combination of connection flags |
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* @return array |
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*/ |
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public function getConnectionFlags() |
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{ |
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if (empty($this->connectionFlags)) { |
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return STREAM_CLIENT_CONNECT; |
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} |
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return implode('|', $this->connectionFlags); |
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} |
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/** |
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* Adds a connection flag |
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* |
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* @param int $connectionFlag |
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* @return $this |
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*/ |
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public function addConnectionFlag($connectionFlag) |
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{ |
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if (!in_array($connectionFlag, array( |
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STREAM_CLIENT_CONNECT, |
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STREAM_CLIENT_PERSISTENT, |
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STREAM_CLIENT_ASYNC_CONNECT |
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) |
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)) { |
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throw new \InvalidArgumentException('Invalid connection flag argument'); |
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} |
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if (!in_array($connectionFlag, $this->connectionFlags)) { |
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$this->connectionFlags[] = $connectionFlag; |
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} |
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return $this; |
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} |
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/** |
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* Drops all connection flags |
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* |
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* @return $this |
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*/ |
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public function dropConnectionFlags() |
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{ |
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$this->connectionFlags = array(); |
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return $this; |
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} |
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/** |
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* Returns a stream resource |
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* |
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* @return resource |
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*/ |
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public function getStreamResource() |
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{ |
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return $this->streamResource; |
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} |
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/** |
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* Sets a stream resource |
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* |
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* @param resource $streamResource |
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* @return $this |
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*/ |
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public function setStreamResource($streamResource) |
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{ |
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if (!is_resource($streamResource)) { |
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throw new \InvalidArgumentException('Stream resource parameter must be a resource'); |
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} |
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$this->streamResource = $streamResource; |
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return $this; |
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} |
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/** |
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* Checks if stream resource exists |
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* |
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* @return bool |
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*/ |
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public function isAlive() |
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{ |
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return (bool) $this->streamResource; |
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} |
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/** |
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* Establishes a socket connection |
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* |
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* @return $this |
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*/ |
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public function connect() |
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{ |
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$streamContext = stream_context_create(array( |
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$this->getTransport() => $this->getContextOptions() |
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)); |
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$streamResource = stream_socket_client( |
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$this->getAddress(), |
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$errorCode, |
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$errorMessage, |
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$this->getSocketTimeout(), |
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$this->getConnectionFlags(), |
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$streamContext |
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); |
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if (!$streamResource) { |
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throw new \RuntimeException(sprintf( |
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'Unable to connect on socket. Error [%d]: %s', |
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$errorCode, |
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$errorMessage |
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)); |
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} |
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stream_set_blocking($streamResource, $this->isBlockingMode()); |
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$this->setStreamResource($streamResource); |
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return $this; |
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} |
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/** |
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* Writes data |
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* |
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* @param string $data |
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* @return $this |
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*/ |
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public function write($data) |
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{ |
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$streamResource = $this->getStreamResource(); |
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if (!is_resource($streamResource)) { |
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throw new \UnexpectedValueException('Stream resource parameter must be a resource'); |
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} |
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$dataLength = strlen($data); |
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if ($dataLength !== fwrite($streamResource, $data, $dataLength)) { |
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throw new \RuntimeException('Unable to write data to the stream'); |
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} |
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return $this; |
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} |
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|
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/** |
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* Reads data |
422
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* |
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* @param int $length |
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* @return string |
425
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*/ |
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public function read($length) |
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{ |
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$streamResource = $this->getStreamResource(); |
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if (!is_resource($streamResource)) { |
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throw new \UnexpectedValueException('Stream resource parameter must be a resource'); |
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} |
432
|
|
|
$streamsRead = array($streamResource); |
433
|
|
|
$streamsWrite = NULL; |
434
|
|
|
$streamsExcept = NULL; |
435
|
|
|
|
436
|
|
|
$hasDataToRead = stream_select( |
437
|
|
|
$streamsRead, |
438
|
|
|
$streamsWrite, |
439
|
|
|
$streamsExcept, |
440
|
|
|
0 |
441
|
|
|
); |
442
|
|
|
|
443
|
|
|
if ($hasDataToRead) { |
444
|
|
|
return fread($streamResource, $length); |
445
|
|
|
} |
446
|
|
|
return false; |
447
|
|
|
} |
448
|
|
|
|
449
|
|
|
/** |
450
|
|
|
* Shutdowns a connection |
451
|
|
|
* |
452
|
|
|
* @return $this |
453
|
|
|
*/ |
454
|
|
|
public function disconnect() |
455
|
|
|
{ |
456
|
|
|
$streamResource = $this->getStreamResource(); |
457
|
|
|
|
458
|
|
|
if (is_resource($streamResource)) { |
459
|
|
|
stream_socket_shutdown($streamResource, STREAM_SHUT_RDWR); |
460
|
|
|
$this->streamResource = null; |
461
|
|
|
} |
462
|
|
|
|
463
|
|
|
return $this; |
464
|
|
|
} |
465
|
|
|
} |
466
|
|
|
|