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增加握手报文协议增加注解，增加代码的易读性。 #96

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增加握手报文协议增加注解，增加代码的易读性。 #96

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9 changes: 9 additions & 0 deletions src/Handler/Frontend/FrontendAuthenticator.php
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Original file line number Diff line number Diff line change
Expand Up @@ -29,13 +29,22 @@ public function getHandshakePacket(int $server_id)
$this->seed = array_merge($rand1, $rand2);
$hs = new HandshakePacket();
$hs->packetId = 0;
// 以下根据握手报文
// 协议版本号
$hs->protocolVersion = Versions::PROTOCOL_VERSION;
// 服务器版本号信息
$hs->serverVersion = Versions::SERVER_VERSION;
// 服务器线程
$hs->threadId = $server_id;
// 随机数
$hs->seed = $rand1;
// 填充值，服务器权能标识,
$hs->serverCapabilities = $this->getServerCapabilities();
// 字符编码
$hs->serverCharsetIndex = (CharsetUtil::getIndex(CONFIG['server']['charset'] ?? 'utf8mb4') & 0xff);
// 服务器状态
$hs->serverStatus = 2;
// 服务器权能标识+填充值
$hs->restOfScrambleBuff = $rand2;

return getString($hs->write());
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12 changes: 12 additions & 0 deletions src/MysqlPacket/HandshakePacket.php
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Original file line number Diff line number Diff line change
Expand Up @@ -54,22 +54,34 @@ public function write()
{
// default init 256,so it can avoid buff extract
$buffer = [];
// 写入消息头长度
BufferUtil::writeUB3($buffer, $this->calcPacketSize());
// 写入序号 -- 消息头的
$buffer[] = $this->packetId;
// 写入协议版本号
$buffer[] = $this->protocolVersion;
// 写入服务器版本信息
BufferUtil::writeWithNull($buffer, getBytes($this->serverVersion));
// 写入服务器线程ID
BufferUtil::writeUB4($buffer, $this->threadId);
// 挑战随机数 9个字节 包含一个填充值
BufferUtil::writeWithNull($buffer, $this->seed);
// 服务器权能标识
BufferUtil::writeUB2($buffer, $this->serverCapabilities);
// 1字节 字符编码
$buffer[] = $this->serverCharsetIndex;
BufferUtil::writeUB2($buffer, $this->serverStatus);
if ($this ->serverCapabilities & Capabilities::CLIENT_PLUGIN_AUTH) {
// 服务器权能标志 16位
BufferUtil::writeUB2($buffer, $this->serverCapabilities);
// 挑战长度+填充值+挑战随机数
$buffer[] = max(13, count($this->seed) + count($this->restOfScrambleBuff) + 1);
$buffer = array_merge($buffer, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
} else {
// 10字节填充数
$buffer = array_merge($buffer, self::$FILLER_13);
}
// +12字节挑战随机数
if ($this ->serverCapabilities & Capabilities::CLIENT_SECURE_CONNECTION) {
BufferUtil::writeWithNull($buffer, $this->restOfScrambleBuff);
}
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