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<?php |
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/** |
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* Copyright (c) 2016-present Ganbaro Digital Ltd |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* * Neither the names of the copyright holders nor the names of his |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Libraries |
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* @package OperatingSystem/IpRoute/Classifiers |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2016-present Ganbaro Digital Ltd www.ganbarodigital.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://code.ganbarodigital.com/php-operating-system |
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*/ |
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namespace GanbaroDigital\OperatingSystem\IpRoute\Classifiers; |
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use GanbaroDigital\OperatingSystem\Exceptions\E4xx_CannotClassifyIpAddrLine; |
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use GanbaroDigital\OperatingSystem\Exceptions\E4xx_UnsupportedType; |
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use GanbaroDigital\Reflection\Requirements\RequireStringy; |
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class ClassifyIpAddrLine |
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{ |
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const LINK_START = 1; |
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const LINK_ETHER = 2; |
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const LINK_LOOPBACK = 3; |
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const LINK_NONE = 4; |
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const INET_START = 50; |
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const INET6_START = 51; |
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const INET_OPTIONS = 52; |
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const TEST_NEVER_SUPPORTED = 100; |
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/** |
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* a list of regexes to use to classify an address line |
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* @var array |
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*/ |
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private static $typeMap = [ |
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'|^\d+:|' => self::LINK_START, |
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'|link/ether|' => self::LINK_ETHER, |
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'|link/loopback|' => self::LINK_LOOPBACK, |
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'|link/none|' => self::LINK_NONE, |
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'|^\s{0,}inet [0-9{1,3}\.]+/|' => self::INET_START, |
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'|^\s{0,}inet6 [0-9a-f:]+/|' => self::INET6_START, |
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'|^\s{0,}valid_lft |' => self::INET_OPTIONS, |
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'|TEST LINE, NEVER SUPPORTED|' => self::TEST_NEVER_SUPPORTED, |
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]; |
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/** |
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* given a single line from the output of the 'ip addr show' or 'ip link show' |
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* commands, tell us what kind of line we are looking at |
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* |
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* @param string $line |
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* the line to classify |
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* @return int |
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* one of this class's constants |
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*/ |
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public function __invoke($line) |
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{ |
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return self::from($line); |
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} |
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/** |
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* given a single line from the output of the 'ip addr show' or 'ip link show' |
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* commands, tell us what kind of line we are looking at |
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* |
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* @param string $line |
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* the line to classify |
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* @return int |
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* one of this class's constants |
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*/ |
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public static function from($line) |
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{ |
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// robustness! |
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RequireStringy::check($line, E4xx_UnsupportedType::class); |
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$line = (string)$line; |
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// what do we have? |
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foreach (self::$typeMap as $regex => $lineType) { |
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if (preg_match($regex, $line)) { |
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return $lineType; |
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} |
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} |
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// if we get here, we do not understand what we are looking at |
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throw new E4xx_CannotClassifyIpAddrLine($line); |
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} |
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} |
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ganbarodigital /
php-operating-system
