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mysql_import.go
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mysql_import.go
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/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package mysql
import (
"context"
"fmt"
"io/fs"
"mime/multipart"
"os"
"path/filepath"
"strings"
"time"
"github.com/admpub/errors"
"github.com/webx-top/echo"
"github.com/webx-top/echo/code"
"github.com/admpub/nging/v5/application/handler"
"github.com/admpub/nging/v5/application/library/background"
"github.com/admpub/nging/v5/application/library/notice"
"github.com/admpub/nging/v5/application/library/respond"
"github.com/nging-plugins/dbmanager/application/library/dbmanager/driver"
"github.com/nging-plugins/dbmanager/application/library/dbmanager/driver/mysql/utils"
)
func responseDropzone(err error, ctx echo.Context) error {
if err != nil {
if user := handler.User(ctx); user != nil {
notice.OpenMessage(user.Username, `upload`)
notice.Send(user.Username, notice.NewMessageWithValue(`upload`, ctx.T(`文件上传出错`), err.Error(), notice.StateFailure))
}
}
return respond.Dropzone(ctx, err, nil)
}
func (m *mySQL) importing() error {
return m.bgExecManage(utils.OpImport)
}
func (m *mySQL) Import() error {
process := m.Queryx(`process`).Bool()
if process {
return m.importing()
}
var err error
if m.IsPost() {
if len(m.dbName) == 0 {
m.fail(m.T(`请选择数据库`))
return m.returnTo(m.GenURL(`listDb`))
}
user := handler.User(m.Context)
var username string
if user != nil {
username = user.Username
}
async := m.Formx(`async`, `true`).Bool()
dbfile := m.Formx(`dbfile`).String()
var sqlFiles []string
saveDir := TempDir(utils.OpImport)
if len(dbfile) > 0 {
var fi fs.FileInfo
fi, err = os.Stat(dbfile)
if err != nil {
return fmt.Errorf(`%w: %s`, err, dbfile)
}
if fi.IsDir() {
err = filepath.Walk(dbfile, func(path string, info fs.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return filepath.SkipDir
}
extension := filepath.Ext(info.Name())
switch strings.ToLower(extension) {
case `.sql`:
case `.zip`:
default:
return nil
}
sqlFiles = append(sqlFiles, path)
return nil
})
if err != nil {
return fmt.Errorf(`%w: %s`, err, dbfile)
}
if len(sqlFiles) == 0 {
return m.NewError(code.DataNotFound, `没有找到扩展名为“.sql”和“.zip”的文件`).SetZone(`dbfile`)
}
} else {
extension := filepath.Ext(dbfile)
switch strings.ToLower(extension) {
case `.sql`:
case `.zip`:
default:
return m.NewError(code.DataFormatIncorrect, `只支持扩展名为“.sql”和“.zip”的文件`).SetZone(`dbfile`)
}
sqlFiles = append(sqlFiles, dbfile)
}
} else {
err = m.SaveUploadedFiles(`file`, func(fdr *multipart.FileHeader) (string, error) {
extension := filepath.Ext(fdr.Filename)
switch strings.ToLower(extension) {
case `.sql`:
case `.zip`:
default:
return ``, errors.New(`只能上传扩展名为“.sql”和“.zip”的文件`)
}
sqlFile := filepath.Join(saveDir, fdr.Filename)
sqlFiles = append(sqlFiles, sqlFile)
return sqlFile, nil
})
}
if err != nil {
return responseDropzone(err, m.Context)
}
bgExec := background.New(context.TODO(), echo.H{
`database`: m.dbName,
`sqlFiles`: sqlFiles,
`async`: async,
})
cacheKey := bgExec.Started.Format(`20060102150405`)
imports, err := background.Register(m.Context, m.ImportAndOutputOpName(utils.OpImport), cacheKey, bgExec)
if err != nil {
return responseDropzone(err, m.Context)
}
noticer := notice.NewP(m.Context, `databaseImport`, username, bgExec.Context())
noticer.Success(m.T(`文件上传成功`))
coll, err := m.getCollation(m.dbName, nil)
if err != nil {
return responseDropzone(err, m.Context)
}
cfg := *m.DbAuth
cfg.Db = m.dbName
cfg.Charset = strings.SplitN(coll, `_`, 2)[0]
importor := func(c context.Context, noticer *notice.NoticeAndProgress, cfg *driver.DbAuth, cacheDir string, files []string) (err error) {
if len(files) == 0 {
return
}
if utils.SupportedImport() { // 采用 mysql 命令导入
err = utils.Import(c, noticer, cfg, cacheDir, files)
} else {
err = m.importDB(c, noticer, cfg, cacheDir, files)
}
return
}
if async {
go func(cfg driver.DbAuth) {
done := make(chan error)
go func(cfg driver.DbAuth) {
err := importor(bgExec.Context(), noticer, &cfg, TempDir(utils.OpImport), sqlFiles)
if err != nil {
noticer.Failure(m.T(`导入失败`) + `: ` + err.Error())
noticer.Complete().Failure(m.T(`导入结束 :(`))
} else {
noticer.Complete().Success(m.T(`导入结束 :)`))
}
imports.Cancel(cacheKey)
done <- err
close(done)
}(cfg)
t := time.NewTicker(24 * time.Hour)
defer t.Stop()
for {
select {
case <-t.C:
imports.Cancel(cacheKey)
return
case <-done:
return
}
}
}(cfg)
noticer.Success(m.T(`正在后台导入,请稍候...`))
} else {
done := make(chan struct{})
ctx := m.StdContext()
go func() {
defer imports.Cancel(cacheKey)
for {
select {
case <-ctx.Done():
return
case <-done:
return
}
}
}()
err = importor(bgExec.Context(), noticer, &cfg, TempDir(utils.OpImport), sqlFiles)
if err != nil {
noticer.Failure(m.T(`导入失败`) + `: ` + err.Error())
}
done <- struct{}{}
close(done)
}
return responseDropzone(err, m.Context)
}
return m.Render(`db/mysql/import`, m.checkErr(err))
}