71 lines
1.6 KiB
PHP
71 lines
1.6 KiB
PHP
<?php
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/**
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* This file is part of workerman.
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the MIT-LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @author walkor<walkor@workerman.net>
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* @copyright walkor<walkor@workerman.net>
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* @link http://www.workerman.net/
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Workerman\Protocols;
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use Workerman\Connection\TcpConnection;
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/**
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* Text Protocol.
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*/
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class Text
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{
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/**
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* Check the integrity of the package.
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*
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* @param string $buffer
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* @param TcpConnection $connection
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* @return int
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*/
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public static function input($buffer, TcpConnection $connection)
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{
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// Judge whether the package length exceeds the limit.
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if (strlen($buffer) >= TcpConnection::$maxPackageSize) {
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$connection->close();
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return 0;
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}
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// Find the position of "\n".
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$pos = strpos($buffer, "\n");
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// No "\n", packet length is unknown, continue to wait for the data so return 0.
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if ($pos === false) {
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return 0;
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}
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// Return the current package length.
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return $pos + 1;
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}
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/**
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* Encode.
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*
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* @param string $buffer
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* @return string
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*/
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public static function encode($buffer)
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{
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// Add "\n"
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return $buffer . "\n";
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}
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/**
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* Decode.
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*
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* @param string $buffer
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* @return string
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*/
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public static function decode($buffer)
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{
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// Remove "\n"
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return trim($buffer);
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}
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}
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