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mayfly-go/server/internal/devops/api/db.go
2022-07-20 01:37:25 +00:00

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package api
import (
"fmt"
"io"
"mayfly-go/internal/devops/api/form"
"mayfly-go/internal/devops/api/vo"
"mayfly-go/internal/devops/application"
"mayfly-go/internal/devops/domain/entity"
sysApplication "mayfly-go/internal/sys/application"
"mayfly-go/pkg/biz"
"mayfly-go/pkg/ctx"
"mayfly-go/pkg/ginx"
"mayfly-go/pkg/model"
"mayfly-go/pkg/utils"
"mayfly-go/pkg/ws"
"strconv"
"strings"
"time"
"github.com/gin-gonic/gin"
"github.com/xwb1989/sqlparser"
)
type Db struct {
DbApp application.Db
DbSqlExecApp application.DbSqlExec
MsgApp sysApplication.Msg
ProjectApp application.Project
}
const DEFAULT_COLUMN_SIZE = 500
// @router /api/dbs [get]
func (d *Db) Dbs(rc *ctx.ReqCtx) {
g := rc.GinCtx
m := &entity.Db{EnvId: uint64(ginx.QueryInt(g, "envId", 0)),
ProjectId: uint64(ginx.QueryInt(g, "projectId", 0)),
}
m.CreatorId = rc.LoginAccount.Id
rc.ResData = d.DbApp.GetPageList(m, ginx.GetPageParam(rc.GinCtx), new([]vo.SelectDataDbVO))
}
func (d *Db) Save(rc *ctx.ReqCtx) {
form := &form.DbForm{}
ginx.BindJsonAndValid(rc.GinCtx, form)
db := new(entity.Db)
utils.Copy(db, form)
// 密码解密,并使用解密后的赋值
originPwd, err := utils.DefaultRsaDecrypt(form.Password, true)
biz.ErrIsNilAppendErr(err, "解密密码错误: %s")
db.Password = originPwd
// 密码脱敏记录日志
form.Password = "****"
if form.Type == "mysql" && form.EnableSSH == 1 {
originSSHPwd, err := utils.DefaultRsaDecrypt(form.SSHPass, true)
biz.ErrIsNilAppendErr(err, "解密密码错误: %s")
db.SSHPass = originSSHPwd
// 密码脱敏记录日志
form.SSHPass = "****"
}
rc.ReqParam = form
db.SetBaseInfo(rc.LoginAccount)
d.DbApp.Save(db)
}
func (d *Db) DeleteDb(rc *ctx.ReqCtx) {
dbId := GetDbId(rc.GinCtx)
d.DbApp.Delete(dbId)
// 删除该库的sql执行记录
d.DbSqlExecApp.DeleteBy(&entity.DbSqlExec{DbId: dbId})
}
func (d *Db) TableInfos(rc *ctx.ReqCtx) {
rc.ResData = d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx)).GetTableInfos()
}
func (d *Db) TableIndex(rc *ctx.ReqCtx) {
tn := rc.GinCtx.Query("tableName")
biz.NotEmpty(tn, "tableName不能为空")
rc.ResData = d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx)).GetTableIndex(tn)
}
func (d *Db) GetCreateTableDdl(rc *ctx.ReqCtx) {
tn := rc.GinCtx.Query("tableName")
biz.NotEmpty(tn, "tableName不能为空")
rc.ResData = d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx)).GetCreateTableDdl(tn)
}
func (d *Db) ExecSql(rc *ctx.ReqCtx) {
g := rc.GinCtx
form := &form.DbSqlExecForm{}
ginx.BindJsonAndValid(g, form)
id := GetDbId(g)
db := form.Db
dbInstance := d.DbApp.GetDbInstance(id, db)
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, dbInstance.ProjectId), "%s")
// 去除前后空格及换行符
sql := strings.TrimFunc(form.Sql, func(r rune) bool {
s := string(r)
return s == " " || s == "\n"
})
rc.ReqParam = fmt.Sprintf("db: %d:%s | sql: %s", id, db, sql)
biz.NotEmpty(sql, "sql不能为空")
if strings.HasPrefix(sql, "SELECT") || strings.HasPrefix(sql, "select") || strings.HasPrefix(sql, "show") || strings.HasPrefix(sql, "explain") {
colNames, res, err := dbInstance.SelectData(sql)
biz.ErrIsNilAppendErr(err, "查询失败: %s")
colAndRes := make(map[string]interface{})
colAndRes["colNames"] = colNames
colAndRes["res"] = res
rc.ResData = colAndRes
} else {
// 根据执行sql生成执行记录
execRecord := d.DbSqlExecApp.GenExecLog(rc.LoginAccount, id, db, sql, dbInstance)
rowsAffected, err := dbInstance.Exec(sql)
biz.ErrIsNilAppendErr(err, "执行失败: %s")
res := make([]map[string]string, 0)
resData := make(map[string]string)
resData["影响条数"] = fmt.Sprintf("%d", rowsAffected)
res = append(res, resData)
colAndRes := make(map[string]interface{})
colAndRes["colNames"] = []string{"影响条数"}
colAndRes["res"] = res
rc.ResData = colAndRes
// 保存sql执行记录
if res[0]["影响条数"] > "0" {
execRecord.Remark = form.Remark
d.DbSqlExecApp.Save(execRecord)
}
}
}
// 执行sql文件
func (d *Db) ExecSqlFile(rc *ctx.ReqCtx) {
g := rc.GinCtx
fileheader, err := g.FormFile("file")
biz.ErrIsNilAppendErr(err, "读取sql文件失败: %s")
file, _ := fileheader.Open()
filename := fileheader.Filename
dbId, db := GetIdAndDb(g)
rc.ReqParam = fmt.Sprintf("dbId: %d, db: %s, filename: %s", dbId, db, filename)
go func() {
db := d.DbApp.GetDbInstance(dbId, db)
dbEntity := d.DbApp.GetById(dbId)
dbInfo := fmt.Sprintf("于%s的%s环境", dbEntity.Name, dbEntity.Env)
defer func() {
if err := recover(); err != nil {
switch t := err.(type) {
case *biz.BizError:
d.MsgApp.CreateAndSend(rc.LoginAccount, ws.ErrMsg("sql脚本执行失败", fmt.Sprintf("[%s]%s执行失败: [%s]", filename, dbInfo, t.Error())))
}
}
}()
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, db.ProjectId), "%s")
tokens := sqlparser.NewTokenizer(file)
for {
stmt, err := sqlparser.ParseNext(tokens)
if err == io.EOF {
break
}
sql := sqlparser.String(stmt)
_, err = db.Exec(sql)
if err != nil {
d.MsgApp.CreateAndSend(rc.LoginAccount, ws.ErrMsg("sql脚本执行失败", fmt.Sprintf("[%s]%s执行失败: [%s]", filename, dbInfo, err.Error())))
return
}
}
d.MsgApp.CreateAndSend(rc.LoginAccount, ws.SuccessMsg("sql脚本执行成功", fmt.Sprintf("[%s]%s执行完成", filename, dbInfo)))
}()
}
// 数据库dump
func (d *Db) DumpSql(rc *ctx.ReqCtx) {
g := rc.GinCtx
dbId, db := GetIdAndDb(g)
dumpType := g.Query("type")
tablesStr := g.Query("tables")
biz.NotEmpty(tablesStr, "请选择要导出的表")
tables := strings.Split(tablesStr, ",")
// 是否需要导出表结构
needStruct := dumpType == "1" || dumpType == "3"
// 是否需要导出数据
needData := dumpType == "2" || dumpType == "3"
dbInstance := d.DbApp.GetDbInstance(dbId, db)
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, dbInstance.ProjectId), "%s")
now := time.Now()
filename := fmt.Sprintf("%s.%s.sql", db, now.Format("200601021504"))
g.Header("Content-Type", "application/octet-stream")
g.Header("Content-Disposition", "attachment; filename="+filename)
writer := g.Writer
writer.WriteString("-- ----------------------------")
writer.WriteString("\n-- 导出平台: mayfly-go")
writer.WriteString(fmt.Sprintf("\n-- 导出时间: %s ", now.Format("2006-01-02 15:04:05")))
writer.WriteString(fmt.Sprintf("\n-- 导出数据库: %s ", db))
writer.WriteString("\n-- ----------------------------\n")
for _, table := range tables {
if needStruct {
writer.WriteString(fmt.Sprintf("\n-- ----------------------------\n-- 表结构: %s \n-- ----------------------------\n", table))
writer.WriteString(fmt.Sprintf("DROP TABLE IF EXISTS `%s`;\n", table))
writer.WriteString(dbInstance.GetCreateTableDdl(table)[0]["Create Table"].(string) + ";\n")
}
if !needData {
continue
}
writer.WriteString(fmt.Sprintf("\n-- ----------------------------\n-- 表记录: %s \n-- ----------------------------\n", table))
writer.WriteString("BEGIN;\n")
countSql := fmt.Sprintf("SELECT COUNT(*) count FROM %s", table)
_, countRes, _ := dbInstance.SelectData(countSql)
// 查询出所有列信息总数,手动分页获取所有数据
maCount := int(countRes[0]["count"].(int64))
// 计算需要查询的页数
pageNum := maCount / DEFAULT_COLUMN_SIZE
if maCount%DEFAULT_COLUMN_SIZE > 0 {
pageNum++
}
var sqlTmp string
switch dbInstance.Type {
case "mysql":
sqlTmp = "SELECT * FROM %s LIMIT %d, %d"
case "postgres":
sqlTmp = "SELECT * FROM %s OFFSET %d LIMIT %d"
}
for index := 0; index < pageNum; index++ {
sql := fmt.Sprintf(sqlTmp, table, index*DEFAULT_COLUMN_SIZE, DEFAULT_COLUMN_SIZE)
columns, result, _ := dbInstance.SelectData(sql)
insertSql := "INSERT INTO `%s` VALUES (%s);\n"
for _, res := range result {
var values []string
for _, column := range columns {
value := res[column]
if value == nil {
values = append(values, "NULL")
continue
}
strValue, ok := value.(string)
if ok {
values = append(values, fmt.Sprintf("%#v", strValue))
} else {
values = append(values, utils.ToString(value))
}
}
writer.WriteString(fmt.Sprintf(insertSql, table, strings.Join(values, ", ")))
}
}
writer.WriteString("COMMIT;\n")
}
rc.NoRes = true
rc.ReqParam = fmt.Sprintf("dbId: %d, db: %s, tables: %s, dumpType: %s", dbId, db, tablesStr, dumpType)
}
// @router /api/db/:dbId/t-metadata [get]
func (d *Db) TableMA(rc *ctx.ReqCtx) {
dbi := d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx))
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, dbi.ProjectId), "%s")
rc.ResData = dbi.GetTableMetedatas()
}
// @router /api/db/:dbId/c-metadata [get]
func (d *Db) ColumnMA(rc *ctx.ReqCtx) {
g := rc.GinCtx
tn := g.Query("tableName")
biz.NotEmpty(tn, "tableName不能为空")
dbi := d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx))
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, dbi.ProjectId), "%s")
rc.ResData = dbi.GetColumnMetadatas(tn)
}
// @router /api/db/:dbId/hint-tables [get]
func (d *Db) HintTables(rc *ctx.ReqCtx) {
dbi := d.DbApp.GetDbInstance(GetIdAndDb(rc.GinCtx))
biz.ErrIsNilAppendErr(d.ProjectApp.CanAccess(rc.LoginAccount.Id, dbi.ProjectId), "%s")
// 获取所有表
tables := dbi.GetTableMetedatas()
tableNames := make([]string, 0)
for _, v := range tables {
tableNames = append(tableNames, v["tableName"].(string))
}
// key = 表名value = 列名数组
res := make(map[string][]string)
// 表为空,则直接返回
if len(tableNames) == 0 {
rc.ResData = res
return
}
// 获取所有表下的所有列信息
columnMds := dbi.GetColumnMetadatas(tableNames...)
for _, v := range columnMds {
tName := v["tableName"].(string)
if res[tName] == nil {
res[tName] = make([]string, 0)
}
columnName := fmt.Sprintf("%s [%s]", v["columnName"], v["columnType"])
comment := v["columnComment"]
// 如果字段备注不为空,则加上备注信息
if comment != nil && comment != "" {
columnName = fmt.Sprintf("%s[%s]", columnName, comment)
}
res[tName] = append(res[tName], columnName)
}
rc.ResData = res
}
// @router /api/db/:dbId/sql [post]
func (d *Db) SaveSql(rc *ctx.ReqCtx) {
g := rc.GinCtx
account := rc.LoginAccount
dbSqlForm := &form.DbSqlSaveForm{}
ginx.BindJsonAndValid(g, dbSqlForm)
rc.ReqParam = dbSqlForm
dbId := GetDbId(g)
// 判断dbId是否存在
err := model.GetById(new(entity.Db), dbId)
biz.ErrIsNil(err, "该数据库信息不存在")
// 获取用于是否有该dbsql的保存记录有则更改否则新增
dbSql := &entity.DbSql{Type: dbSqlForm.Type, DbId: dbId, Name: dbSqlForm.Name, Db: dbSqlForm.Db}
dbSql.CreatorId = account.Id
e := model.GetBy(dbSql)
dbSql.SetBaseInfo(account)
// 更新sql信息
dbSql.Sql = dbSqlForm.Sql
if e == nil {
model.UpdateById(dbSql)
} else {
model.Insert(dbSql)
}
}
// 获取所有保存的sql names
func (d *Db) GetSqlNames(rc *ctx.ReqCtx) {
id, db := GetIdAndDb(rc.GinCtx)
// 获取用于是否有该dbsql的保存记录有则更改否则新增
dbSql := &entity.DbSql{Type: 1, DbId: id, Db: db}
dbSql.CreatorId = rc.LoginAccount.Id
var sqls []entity.DbSql
model.ListBy(dbSql, &sqls, "id", "name")
rc.ResData = sqls
}
// 删除保存的sql
func (d *Db) DeleteSql(rc *ctx.ReqCtx) {
dbSql := &entity.DbSql{Type: 1, DbId: GetDbId(rc.GinCtx)}
dbSql.CreatorId = rc.LoginAccount.Id
dbSql.Name = rc.GinCtx.Query("name")
model.DeleteByCondition(dbSql)
}
// @router /api/db/:dbId/sql [get]
func (d *Db) GetSql(rc *ctx.ReqCtx) {
id, db := GetIdAndDb(rc.GinCtx)
// 根据创建者id 数据库id以及sql模板名称查询保存的sql信息
dbSql := &entity.DbSql{Type: 1, DbId: id, Db: db}
dbSql.CreatorId = rc.LoginAccount.Id
dbSql.Name = rc.GinCtx.Query("name")
e := model.GetBy(dbSql)
if e != nil {
return
}
rc.ResData = dbSql
}
func GetDbId(g *gin.Context) uint64 {
dbId, _ := strconv.Atoi(g.Param("dbId"))
biz.IsTrue(dbId > 0, "dbId错误")
return uint64(dbId)
}
func GetIdAndDb(g *gin.Context) (uint64, string) {
db := g.Query("db")
biz.NotEmpty(db, "db不能为空")
return GetDbId(g), db
}