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<?php |
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/** |
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* Plasma Driver MySQL component |
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* Copyright 2018-2019 PlasmaPHP, All Rights Reserved |
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* |
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* Website: https://github.com/PlasmaPHP |
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* License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE |
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*/ |
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namespace Plasma\Drivers\MySQL\Commands; |
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/** |
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* Handshake Response command. |
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* @internal |
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*/ |
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class HandshakeResponseCommand implements CommandInterface { |
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use \Evenement\EventEmitterTrait; |
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/** |
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* @var \Plasma\Drivers\MySQL\ProtocolParser |
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*/ |
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protected $parser; |
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/** |
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* @var \Plasma\Drivers\MySQL\Messages\HandshakeMessage |
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*/ |
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protected $handshake; |
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/** |
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* @var int |
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*/ |
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protected $capability; |
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/** |
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* @var string|null |
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*/ |
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protected $plugin; |
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/** |
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* @var string |
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*/ |
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protected $user; |
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/** |
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* @var string |
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*/ |
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protected $password; |
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/** |
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* @var string |
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*/ |
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protected $database; |
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/** |
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* @var bool |
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*/ |
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protected $finished = false; |
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/** |
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* Constructor. |
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* @param \Plasma\Drivers\MySQL\ProtocolParser $parser |
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* @param \Plasma\Drivers\MySQL\Messages\HandshakeMessage $handshake |
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* @param int $capability |
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* @param string|null $plugin |
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* @param string $user |
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* @param string $password |
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* @param string $database |
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*/ |
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function __construct( |
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\Plasma\Drivers\MySQL\ProtocolParser $parser, \Plasma\Drivers\MySQL\Messages\HandshakeMessage $handshake, |
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int $capability, ?string $plugin, string $user, string $password, string $database |
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) { |
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$this->parser = $parser; |
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$this->handshake = $handshake; |
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$this->capability = $capability; |
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$this->plugin = $plugin; |
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$this->user = $user; |
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$this->password = $password; |
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$this->database = $database; |
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} |
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/** |
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* Get the encoded message for writing to the database connection. |
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* @return string |
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*/ |
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function getEncodedMessage(): string { |
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$maxPacketSize = \Plasma\Drivers\MySQL\ProtocolParser::CLIENT_MAX_PACKET_SIZE; |
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$charsetNumber = \Plasma\Drivers\MySQL\ProtocolParser::CLIENT_CHARSET_NUMBER; |
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$packet = \pack('VVc', $this->capability, $maxPacketSize, $charsetNumber); |
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$packet .= \str_repeat("\x00", 23); |
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$packet .= $this->user."\x00"; |
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if($this->plugin !== null) { |
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$plug = $this->plugin; |
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/** @var \Plasma\Drivers\MySQL\AuthPlugins\AuthPluginInterface $auth */ |
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$auth = new $plug($this->parser, $this->handshake); |
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$packet .= $auth->getHandshakeAuth($this->password); |
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} |
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if($this->database !== '') { |
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$packet .= $this->database."\x00"; |
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} |
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if($this->plugin !== null) { |
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$packet .= $this->handshake->authPluginName."\x00"; |
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} |
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$this->finished = true; |
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return $packet; |
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} |
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/** |
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* Sets the parser state, if necessary. If not, return `-1`. |
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* @return int |
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*/ |
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function setParserState(): int { |
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return \Plasma\Drivers\MySQL\ProtocolParser::STATE_AUTH; |
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} |
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/** |
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* Sets the command as completed. This state gets reported back to the user. |
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* @return void |
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*/ |
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function onComplete(): void { |
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$this->finished = true; |
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$this->emit('end'); |
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} |
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/** |
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* Sets the command as errored. This state gets reported back to the user. |
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* @param \Throwable $throwable |
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* @return void |
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*/ |
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function onError(\Throwable $throwable): void { |
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$this->finished = true; |
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$this->emit('error', array($throwable)); |
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} |
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/** |
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* Sends the next received value into the command. |
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* @param mixed $value |
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* @return void |
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*/ |
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function onNext($value): void { |
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// Nothing to do |
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} |
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/** |
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* Whether the command has finished. |
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* @return bool |
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*/ |
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function hasFinished(): bool { |
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return $this->finished; |
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} |
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/** |
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* Whether this command sets the connection as busy. |
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* @return bool |
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*/ |
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function waitForCompletion(): bool { |
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return true; |
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} |
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/** |
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* Whether the sequence ID should be resetted. |
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* @return bool |
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*/ |
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function resetSequence(): bool { |
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return false; |
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} |
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} |
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