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<?php |
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namespace LibSSH2; |
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use LibSSH2\Authentication\Authentication; |
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/** |
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* Connection class. |
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* |
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* Remote resource connection setter class. |
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* |
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* @package LibSSH2 |
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*/ |
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class Connection extends ConsoleOutput |
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{ |
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/** |
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* Remote subsystem connection resource. |
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* |
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* @var resource |
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*/ |
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protected $connection; |
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/** |
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* Constructor. |
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* |
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* @param instance $configuration Configuration class instance |
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* @param instance $authentication Authentication class instance |
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* @param boolean $tunnel require SSH tunnel |
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* @return void |
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*/ |
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public function __construct(Configuration $configuration, Authentication $authentication) |
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{ |
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if (extension_loaded('ssh2') == false) |
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{ |
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throw new \RuntimeException('The libssh2 extension is not loaded.'); |
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} |
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$this->connect($configuration); |
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$this->authenticate($authentication); |
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if ($configuration->get_tunnel()) |
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{ |
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$this->tunnel($configuration); |
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} |
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} |
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/** |
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* Destructor. |
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* |
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* @return void |
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*/ |
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public function __destruct() |
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{ |
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$this->disconnect(); |
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} |
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/** |
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* Create remote connection resource. |
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* |
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* @param resource $configuration \LibSSH2\Configuration object |
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* @return void |
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*/ |
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final public function connect(Configuration $configuration) |
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{ |
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$this->connection = @ssh2_connect($configuration->get_host(), $configuration->get_port(), $configuration->get_methods()); |
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if ($this->connection === false || !is_resource($this->connection)) |
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{ |
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throw new \RuntimeException($this->get_error_message()); |
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} |
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return; |
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} |
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/** |
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* Create remote tunnel connection resource. |
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* |
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* @param string $host hostname |
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* @param int $port port (default=22) |
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* @return void |
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*/ |
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final public function tunnel(Configuration $configuration) |
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{ |
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$tunnel = @ssh2_tunnel($this->connection, $configuration->get_tunnel_host(), $configuration->get_tunnel_port()); |
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if ($tunnel === false) |
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{ |
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throw new \RuntimeException($this->get_error_message()); |
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} |
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return; |
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} |
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/** |
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* Authenticate remote connection resource. |
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* |
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* @param resource $authentication \LibSSH2\Authentication\Authentication interface object |
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* @return void |
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*/ |
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final public function authenticate(Authentication $authentication) |
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{ |
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$authentication->authenticate($this->connection); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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final public function disconnect() |
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{ |
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@ssh2_exec($this->connection, 'exit'); |
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unset($this->connection); |
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} |
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} |
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degagne /
libssh2
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