43 lines
724 B
PHP
43 lines
724 B
PHP
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<?php
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namespace App\Classes\Protocol;
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final class BinkpMessage
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{
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public const BLK_HDR_SIZE = 2; /* header size */
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private int $id;
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private string $body;
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public function __construct(int $id,string $body)
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{
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$this->id = $id;
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$this->body = $body;
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}
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public function __get($key)
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{
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switch ($key) {
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case 'len':
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return strlen($this->body)+1+self::BLK_HDR_SIZE;
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case 'msg':
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$buf = self::mkheader((strlen($this->body)+1) | 0x8000);
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$buf .= chr($this->id);
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$buf .= $this->body;
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return $buf;
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default:
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throw new \Exception('Unknown key :'.$key);
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}
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}
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public static function mkheader(int $l): string
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{
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$buf = chr(($l>>8)&0xff);
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$buf .= chr($l&0xff);
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return $buf;
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}
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}
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