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Code Issues Releases Wiki Activity

Add 1200 byte padding to all requests

Browse Source 
https://steamcommunity.com/discussions/forum/14/2989789048633291344/
This commit is contained in:
Pavel Djundik
2020-11-19 10:58:23 +02:00
parent 4f88fb0c76
commit 7231921b0b
4 changed files with 34 additions and 5 deletions
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SourceQuery/Socket.php
+20
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@@ -61,6 +61,26 @@
return $Length === FWrite( $this->Socket, $Command, $Length );
}
/**
* Write a request packge to the socket. Pads it up to 1200 bytes to prevent reflective DoS.
*
* @see https://steamcommunity.com/discussions/forum/14/2989789048633291344/
* @return bool Whether fwrite succeeded.
*/
public function WritePadded( int $Header, string $String = '' ) : bool
{
$Command = pack( 'ccccca*', 0xFF, 0xFF, 0xFF, 0xFF, $Header, $String );
$Length = strlen( $Command );
if( $Length < 1200 )
{
$Command .= str_repeat( "\0", 1200 - $Length );
$Length = 1200;
}
return $Length === fwrite( $this->Socket, $Command, $Length );
}
/**
* Reads from socket and returns Buffer.
*