mirror of
https://github.com/cytopia/devilbox.git
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66 lines
1.6 KiB
PHP
66 lines
1.6 KiB
PHP
<?php
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namespace devilbox;
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class Dns extends BaseClass implements BaseInterface
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{
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/*********************************************************************************
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*
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* Interface required functions
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*
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*********************************************************************************/
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private $_version = null;
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private $_can_connect = array();
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private $_can_connect_err = array();
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public function canConnect(&$err, $hostname, $data = array())
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{
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$err = false;
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// Return if already cached
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if (isset($this->_can_connect[$hostname])) {
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// Assume error for unset error message
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$err = isset($this->_can_connect_err[$hostname]) ? $this->_can_connect_err[$hostname] : true;
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return $this->_can_connect[$hostname];
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}
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$version = $this->getVersion();
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if (strlen($version)) {
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$this->_can_connect[$hostname] = true;
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} else {
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$err = 'Could not connect to Bind via hostname: '.$hostname;
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$this->_can_connect[$hostname] = false;
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}
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$this->_can_connect_err[$hostname] = $err;
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return $this->_can_connect[$hostname];
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}
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public function getName($default = 'Bind')
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{
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return $default;
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}
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public function getVersion()
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{
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// Return if already cached
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if ($this->_version !== null) {
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return $this->_version;
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}
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$cmd = 'dig +time=1 +tries=1 @'.$this->getIpAddress().' version.bind chaos TXT | grep -iE "^version\.bind.*TXT"';
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$output = loadClass('Helper')->exec($cmd);
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$version = loadClass('Helper')->egrep('/"[0-9.-]+.*"/', $output);
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$version = loadClass('Helper')->egrep('/[0-9.-]+/', $version);
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// Cache and return
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$this->_version = $version ? $version : '';
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return $this->_version;
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}
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}
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