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Merge pull request #71 from kanzihuang/fix-exec-postgres-sql-pullrequest

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fix: 执行或导入 SQL 脚本支持 PostgreSQL
This commit is contained in:
may-fly
2023-10-14 09:57:12 -05:00
committed by GitHub
parent a4d3a4627a 23b137ab9b
commit f04b82c933
4 changed files with 27 additions and 226 deletions
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2
server/go.mod
View File

@@ -13,7 +13,7 @@ require (
github.com/go-sql-driver/mysql v1.7.1
github.com/golang-jwt/jwt/v5 v5.0.0
github.com/gorilla/websocket v1.5.0
github.com/kanzihuang/vitess/go/vt/sqlparser v0.0.0-20231007020222-b91ee5ef3b31
github.com/kanzihuang/vitess/go/vt/sqlparser v0.0.0-20231014104824-e3b9aa5415a4
github.com/lib/pq v1.10.9
github.com/lionsoul2014/ip2region/binding/golang v0.0.0-20230712084735-068dc2aee82d
github.com/mojocn/base64Captcha v1.3.5 // 验证码

52
server/internal/db/api/db.go
View File

@@ -2,13 +2,10 @@ package api
import (
"fmt"
"io"
"mayfly-go/pkg/utils/collx"
"mayfly-go/pkg/utils/uniqueid"
"mayfly-go/pkg/ws"
"github.com/gin-gonic/gin"
"github.com/kanzihuang/vitess/go/vt/sqlparser"
"github.com/lib/pq"
"io"
"mayfly-go/internal/db/api/form"
"mayfly-go/internal/db/api/vo"
"mayfly-go/internal/db/application"
@@ -21,13 +18,13 @@ import (
"mayfly-go/pkg/gormx"
"mayfly-go/pkg/model"
"mayfly-go/pkg/req"
"mayfly-go/pkg/sqlparser"
"mayfly-go/pkg/utils/collx"
"mayfly-go/pkg/utils/stringx"
"mayfly-go/pkg/utils/uniqueid"
"mayfly-go/pkg/ws"
"strconv"
"strings"
"time"
"github.com/gin-gonic/gin"
)
type Db struct {
@@ -179,7 +176,7 @@ func (d *Db) ExecSqlFile(rc *req.Ctx) {
dbConn := d.DbApp.GetDbConnection(dbId, dbName)
biz.ErrIsNilAppendErr(d.TagApp.CanAccess(rc.LoginAccount.Id, dbConn.Info.TagPath), "%s")
rc.ReqParam = fmt.Sprintf("%s -> filename: %s", dbConn.Info.GetLogDesc(), filename)
rc.ReqParam = fmt.Sprintf("filename: %s -> %s", filename, dbConn.Info.GetLogDesc())
defer func() {
var errInfo string
@@ -190,7 +187,7 @@ func (d *Db) ExecSqlFile(rc *req.Ctx) {
errInfo = t
}
if len(errInfo) > 0 {
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本执行失败", fmt.Sprintf("[%s]%s执行失败: [%s]", filename, dbConn.Info.GetLogDesc(), errInfo)))
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本执行失败", fmt.Sprintf("[%s][%s]执行失败: [%s]", filename, dbConn.Info.GetLogDesc(), errInfo)))
}
}()
@@ -211,13 +208,8 @@ func (d *Db) ExecSqlFile(rc *req.Ctx) {
Terminated: true,
}).WithCategory(progressCategory))
var parser sqlparser.Parser
if dbConn.Info.Type == entity.DbTypeMysql {
parser = sqlparser.NewMysqlParser(file)
} else {
parser = sqlparser.NewPostgresParser(file)
}
var sql string
tokenizer := sqlparser.NewReaderTokenizer(file, sqlparser.WithCacheInBuffer())
ticker := time.NewTicker(time.Second * 1)
defer ticker.Stop()
for {
@@ -231,24 +223,30 @@ func (d *Db) ExecSqlFile(rc *req.Ctx) {
}).WithCategory(progressCategory))
default:
}
err = parser.Next()
sql, err = sqlparser.SplitNext(tokenizer)
if err == io.EOF {
break
}
if err != nil {
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本执行失败", fmt.Sprintf("[%s][%s] 解析SQL失败: [%s]", filename, dbConn.Info.GetLogDesc(), err.Error())))
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本解析失败", fmt.Sprintf("[%s][%s] 解析SQL失败: [%s]", filename, dbConn.Info.GetLogDesc(), err.Error())))
return
}
sql := parser.Current()
const prefixUse = "use "
if strings.HasPrefix(sql, prefixUse) {
dbNameExec := strings.Trim(sql[len(prefixUse):], " `;\n")
if len(dbNameExec) > 0 {
dbConn = d.DbApp.GetDbConnection(dbId, dbNameExec)
const prefixUSE = "USE "
if strings.HasPrefix(sql, prefixUSE) || strings.HasPrefix(sql, prefixUse) {
var stmt sqlparser.Statement
stmt, err = sqlparser.Parse(sql)
if err != nil {
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本解析失败", fmt.Sprintf("[%s][%s] 解析SQL失败: [%s]", filename, dbConn.Info.GetLogDesc(), err.Error())))
}
stmtUse, ok := stmt.(*sqlparser.Use)
if !ok {
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.ErrSysMsg("sql脚本解析失败", fmt.Sprintf("[%s][%s] 解析SQL失败: [%s]", filename, dbConn.Info.GetLogDesc(), sql)))
}
dbConn = d.DbApp.GetDbConnection(dbId, stmtUse.DBName.String())
biz.ErrIsNilAppendErr(d.TagApp.CanAccess(rc.LoginAccount.Id, dbConn.Info.TagPath), "%s")
execReq.DbConn = dbConn
}
}
// 需要记录执行记录
const maxRecordStatements = 64
if executedStatements < maxRecordStatements {
@@ -264,7 +262,7 @@ func (d *Db) ExecSqlFile(rc *req.Ctx) {
}
executedStatements++
}
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.SuccessSysMsg("sql脚本执行成功", fmt.Sprintf("[%s]执行完成 -> %s", filename, dbConn.Info.GetLogDesc())))
d.MsgApp.CreateAndSend(rc.LoginAccount, msgdto.SuccessSysMsg("sql脚本执行成功", fmt.Sprintf("sql脚本执行完成：%s", rc.ReqParam)))
}
// 数据库dump

99
server/pkg/sqlparser/sqlparser.go
View File

@@ -1,99 +0,0 @@
package sqlparser
import (
"bufio"
"github.com/kanzihuang/vitess/go/vt/sqlparser"
"io"
"regexp"
)
type Parser interface {
Next() error
Current() string
}
var _ Parser = &MysqlParser{}
var _ Parser = &PostgresParser{}
type MysqlParser struct {
tokenizer *sqlparser.Tokenizer
statement string
}
func NewMysqlParser(reader io.Reader) *MysqlParser {
return &MysqlParser{
tokenizer: sqlparser.NewReaderTokenizer(reader),
}
}
func (parser *MysqlParser) Next() error {
statement, err := sqlparser.ParseNext(parser.tokenizer)
if err != nil {
parser.statement = ""
return err
}
parser.statement = sqlparser.String(statement)
return nil
}
func (parser *MysqlParser) Current() string {
return parser.statement
}
type PostgresParser struct {
scanner *bufio.Scanner
statement string
}
func NewPostgresParser(reader io.Reader) *PostgresParser {
return &PostgresParser{
scanner: splitSqls(reader),
}
}
func (parser *PostgresParser) Next() error {
if !parser.scanner.Scan() {
return io.EOF
}
return nil
}
func (parser *PostgresParser) Current() string {
return parser.scanner.Text()
}
// 根据;\n切割sql
func splitSqls(r io.Reader) *bufio.Scanner {
scanner := bufio.NewScanner(r)
re := regexp.MustCompile(`\s*;\s*\n`)
scanner.Split(func(data []byte, atEOF bool) (advance int, token []byte, err error) {
if atEOF && len(data) == 0 {
return 0, nil, io.EOF
}
match := re.FindIndex(data)
if match != nil {
// 如果找到了";\n"，判断是否为最后一行
if match[1] == len(data) {
// 如果是最后一行，则返回完整的切片
return len(data), data, nil
}
// 否则，返回到";\n"之后，并且包括";\n"本身
return match[1], data[:match[1]], nil
}
if atEOF {
return len(data), data, nil
}
return 0, nil, nil
})
return scanner
}
func SplitStatementToPieces(sql string) ([]string, error) {
return sqlparser.SplitStatementToPieces(sql)
}

98
server/pkg/sqlparser/sqlparser_test.go
View File

@@ -1,98 +0,0 @@
package sqlparser
import (
"strings"
"testing"
"github.com/kanzihuang/vitess/go/vt/sqlparser"
"github.com/stretchr/testify/require"
)
func Test_ParseNext_WithCurrentDate(t *testing.T) {
tests := []struct {
name string
input string
want string
wantXwb1989 string
err string
}{
{
name: "create table with current_timestamp",
input: "create table tbl (\n\tcreate_at datetime default current_timestamp()\n)",
// xwb1989/sqlparser 不支持 current_timestamp()
wantXwb1989: "create table tbl",
},
{
name: "create table with current_date",
input: "create table tbl (\n\tcreate_at date default current_date()\n)",
// xwb1989/sqlparser 不支持 current_date()
wantXwb1989: "create table tbl",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
token := sqlparser.NewReaderTokenizer(strings.NewReader(test.input))
tree, err := sqlparser.ParseNext(token)
if len(test.err) > 0 {
require.Error(t, err)
require.Contains(t, err.Error(), test.err)
return
}
require.NoError(t, err)
if len(test.want) == 0 {
test.want = test.input
}
require.Equal(t, test.want, sqlparser.String(tree))
})
}
// for _, test := range tests {
// t.Run(test.name, func(t *testing.T) {
// token := sqlparser_xwb1989.NewTokenizer(strings.NewReader(test.input))
// tree, err := sqlparser_xwb1989.ParseNext(token)
// if len(test.err) > 0 {
// require.Error(t, err)
// require.Contains(t, err.Error(), test.err)
// return
// }
// require.NoError(t, err)
// if len(test.want) == 0 {
// test.want = test.input
// }
// require.Equal(t, test.wantXwb1989, sqlparser_xwb1989.String(tree))
// })
// }
}
func Test_SplitSqls(t *testing.T) {
tests := []struct {
name string
input string
want string
}{
{
name: "create table with current_timestamp",
input: "create table tbl (\n\tcreate_at datetime default current_timestamp()\n)",
},
{
name: "create table with current_date",
input: "create table tbl (\n\tcreate_at date default current_date()\n)",
},
{
name: "select with ';\n'",
input: "select 'the first line;\nthe second line;\n'",
// SplitSqls split statements by ';\n'
want: "select 'the first line;\n",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
scanner := splitSqls(strings.NewReader(test.input))
require.True(t, scanner.Scan())
got := scanner.Text()
if len(test.want) == 0 {
test.want = test.input
}
require.Equal(t, test.want, got)
})
}
}