/
registerslave.go
98 lines (91 loc) · 2.33 KB
/
registerslave.go
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package command
import (
"errors"
"github.com/didi/sharingan/replayer-agent/utils/protocol/pmysql/common"
"github.com/modern-go/parse"
"github.com/modern-go/parse/model"
)
// RegisterSlaveBody ...
type RegisterSlaveBody struct {
ServerID int
SlaveHostNameLen int
SlaveHostName string
SlaveUserLen int
SlaveUser string
SlavePasswordLen int
SlavePassword string
SlaveMysqlPort int
ReplicationRank int
MasterID int
}
func (p *RegisterSlaveBody) String() string {
data, err := json.Marshal(p)
if nil != err {
return err.Error()
}
return string(data)
}
// Map ...
func (p *RegisterSlaveBody) Map() model.Map {
r := make(model.Map)
r["server_id"] = p.ServerID
r["slave_hostname_len"] = p.SlaveHostNameLen
r["slave_hostname"] = p.SlaveHostName
r["slave_user_len"] = p.SlaveUserLen
r["slave_user"] = p.SlaveUser
r["slave_password_len"] = p.SlavePasswordLen
r["slave_password"] = p.SlavePassword
r["slave_mysql_port"] = p.SlaveMysqlPort
r["replication_rank"] = p.ReplicationRank
r["master_id"] = p.MasterID
return r
}
// DecodeRegisterSlaveReq
// doc: https://dev.mysql.com/doc/internals/en/com-register-slave.html
func DecodeRegisterSlaveReq(src *parse.Source) (*RegisterSlaveBody, error) {
common.GetPacketHeader(src)
if src.Error() != nil {
return nil, src.Error()
}
b := src.Read1()
if src.Error() != nil {
return nil, src.Error()
}
if b != 0x15 {
return nil, errors.New("packet isn't register slave query")
}
resp := new(RegisterSlaveBody)
var err error
resp.ServerID, err = common.GetIntN(src.ReadN(4), 4)
if err != nil {
return nil, err
}
resp.SlaveHostNameLen, err = common.GetIntN(src.ReadN(1), 1)
if err != nil {
return nil, err
}
resp.SlaveHostName = common.GetLenencString(src)
resp.SlaveUserLen, err = common.GetIntN(src.ReadN(1), 1)
if err != nil {
return nil, err
}
resp.SlaveUser = common.GetLenencString(src)
resp.SlavePasswordLen, err = common.GetIntN(src.ReadN(1), 1)
if err != nil {
return nil, err
}
resp.SlavePassword = common.GetLenencString(src)
resp.SlaveMysqlPort, err = common.GetIntN(src.ReadN(2), 2)
if err != nil {
return nil, err
}
resp.ReplicationRank, err = common.GetIntN(src.ReadN(4), 4)
if err != nil {
return nil, err
}
resp.MasterID, err = common.GetIntN(src.ReadN(4), 4)
if err != nil {
return nil, err
}
return resp, nil
}