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sql.go
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sql.go
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/*
* Copyright (c) 2024 Yunshan Networks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package datatype
import (
"fmt"
"strings"
"unicode"
"github.com/deepflowio/deepflow/server/libs/datatype/pb"
"github.com/deepflowio/deepflow/server/libs/pool"
)
var mysqlInfoPool = pool.NewLockFreePool(func() interface{} {
return new(MysqlInfo)
})
func AcquireMYSQLInfo() *MysqlInfo {
return mysqlInfoPool.Get().(*MysqlInfo)
}
func ReleaseMYSQLInfo(d *MysqlInfo) {
*d = MysqlInfo{}
mysqlInfoPool.Put(d)
}
const (
COM_QUIT = iota + 1
COM_INIT_DB
COM_QUERY
COM_FIELD_LIST
COM_STMT_PREPARE = 22
COM_STMT_EXECUTE = 23
COM_STMT_CLOSE = 25
COM_STMT_FETCH = 28
COM_MAX = 29
)
const (
MYSQL_RESPONSE_CODE_OK = 0
MYSQL_RESPONSE_CODE_ERR = 0xff
MYSQL_RESPONSE_CODE_EOF = 0xfe
)
type MysqlInfo struct {
// Server Greeting
ProtocolVersion uint8
ServerVersion string
ServerThreadID uint32
// Request
Command uint8
Context string
// Response
ResponseCode uint8
ErrorCode uint16
AffectedRows uint64
ErrorMessage string
}
func (i *MysqlInfo) WriteToPB(p *pb.AppProtoLogsData, msgType LogMessageType) {
if msgType == MSG_T_REQUEST || msgType == MSG_T_SESSION {
p.Req = &pb.L7Request{
ReqType: MysqlCommand(i.Command).String(),
Resource: i.Context,
}
}
p.ReqLen, p.RespLen = -1, -1
if msgType == MSG_T_RESPONSE || msgType == MSG_T_SESSION {
p.Resp.Code = int32(i.ErrorCode)
p.Resp.Exception = i.ErrorMessage
if p.Resp.Code == 0 {
p.Resp.Code = L7PROTOCOL_LOG_RESP_CODE_NONE
}
}
p.RowEffect = uint32(i.AffectedRows)
}
func (i *MysqlInfo) String() string {
return fmt.Sprintf("%#v", i)
}
func TrimCommand(sql string, commandMaxLength int) string {
index := 0
if len(sql) > 2 && sql[:2] == "/*" {
index = strings.LastIndex(sql, "*/")
if index < 0 {
return ""
}
index += 2
}
subSql := sql[index:]
i := 0
start := -1
for ; i < commandMaxLength && i < len(subSql); i++ {
if start == -1 && subSql[i] == ' ' {
commandMaxLength += 1
continue
}
if !unicode.IsLetter(rune(subSql[i])) {
if start == -1 {
return ""
}
return strings.ToUpper(subSql[start:i])
}
if start == -1 {
start = i
}
}
return strings.ToUpper(subSql[start:i])
}
func (i *MysqlInfo) Merge(r interface{}) {
if response, ok := r.(*MysqlInfo); ok {
i.ResponseCode = response.ResponseCode
if i.Command == COM_QUERY && len(i.Context) > 0 {
command := TrimCommand(i.Context, 8)
if command == "INSERT" || command == "UPDATE" || command == "DELETE" {
i.AffectedRows = response.AffectedRows
}
}
i.ErrorCode = response.ErrorCode
i.ErrorMessage = response.ErrorMessage
}
}
var redisInfoPool = pool.NewLockFreePool(func() interface{} {
return new(RedisInfo)
})
func AcquireREDISInfo() *RedisInfo {
return redisInfoPool.Get().(*RedisInfo)
}
func ReleaseREDISInfo(d *RedisInfo) {
*d = RedisInfo{}
redisInfoPool.Put(d)
}
type RedisInfo struct {
Request string // 命令字段包括参数例如:"set key value"
RequestType string // 命令类型不包括参数例如:命令为"set key value",命令类型为:"set"
Response string // 整数回复 + 批量回复 + 多条批量回复
Status string // '+'
Error string // '-'
}
func (i *RedisInfo) WriteToPB(p *pb.AppProtoLogsData, msgType LogMessageType) {
if msgType == MSG_T_REQUEST || msgType == MSG_T_SESSION {
p.Req = &pb.L7Request{
ReqType: i.RequestType,
Resource: i.Request,
}
}
p.ReqLen, p.RespLen = -1, -1
if msgType == MSG_T_RESPONSE || msgType == MSG_T_SESSION {
p.Resp.Result = i.Response
p.Resp.Exception = i.Error
if p.Resp.Code == 0 {
p.Resp.Code = L7PROTOCOL_LOG_RESP_CODE_NONE
}
}
}
func (i *RedisInfo) String() string {
return fmt.Sprintf("%#v", i)
}
func (i *RedisInfo) Merge(r interface{}) {
if redis, ok := r.(*RedisInfo); ok {
i.Response = redis.Response
i.Status = redis.Status
i.Error = redis.Error
}
}