1Panel/backend/utils/postgresql/client/local.go

202 lines
5.8 KiB
Go
Raw Normal View History

2024-01-02 09:08:13 +00:00
package client
import (
"compress/gzip"
"context"
"errors"
"fmt"
"os"
"os/exec"
"path"
"strings"
"time"
"github.com/1Panel-dev/1Panel/backend/buserr"
"github.com/1Panel-dev/1Panel/backend/constant"
"github.com/1Panel-dev/1Panel/backend/global"
"github.com/1Panel-dev/1Panel/backend/utils/files"
)
type Local struct {
PrefixCommand []string
Database string
Username string
Password string
ContainerName string
}
func NewLocal(command []string, containerName, username, password, database string) *Local {
return &Local{PrefixCommand: command, ContainerName: containerName, Username: username, Password: password, Database: database}
}
func (r *Local) Create(info CreateInfo) error {
createSql := fmt.Sprintf("CREATE DATABASE %s", info.Name)
if err := r.ExecSQL(createSql, info.Timeout); err != nil {
if strings.Contains(strings.ToLower(err.Error()), "already exists") {
return buserr.New(constant.ErrDatabaseIsExist)
}
return err
}
if err := r.CreateUser(info, true); err != nil {
_ = r.ExecSQL(fmt.Sprintf("DROP DATABASE %s", info.Name), info.Timeout)
return err
}
return nil
}
func (r *Local) CreateUser(info CreateInfo, withDeleteDB bool) error {
createSql := fmt.Sprintf("CREATE USER \"%s\" WITH PASSWORD '%s'", info.Username, info.Username)
if err := r.ExecSQL(createSql, info.Timeout); err != nil {
if strings.Contains(strings.ToLower(err.Error()), "already exists") {
return buserr.New(constant.ErrUserIsExist)
}
if withDeleteDB {
_ = r.Delete(DeleteInfo{
Name: info.Name,
Username: info.Username,
ForceDelete: true,
Timeout: 300})
}
return err
}
grantStr := fmt.Sprintf("GRANT ALL PRIVILEGES ON DATABASE %s TO %s", info.Name, info.Username)
if err := r.ExecSQL(grantStr, info.Timeout); err != nil {
if withDeleteDB {
_ = r.Delete(DeleteInfo{
Name: info.Name,
Username: info.Username,
ForceDelete: true,
Timeout: 300})
}
return err
}
return nil
}
func (r *Local) Delete(info DeleteInfo) error {
if len(info.Name) != 0 {
dropSql := fmt.Sprintf("DROP DATABASE %s", info.Name)
if err := r.ExecSQL(dropSql, info.Timeout); err != nil && !info.ForceDelete {
return err
}
}
dropSql := fmt.Sprintf("DROP ROLE %s", info.Username)
if err := r.ExecSQL(dropSql, info.Timeout); err != nil && !info.ForceDelete {
if strings.Contains(strings.ToLower(err.Error()), "depend on it") {
return buserr.WithDetail(constant.ErrInUsed, info.Username, nil)
}
return err
}
return nil
}
func (r *Local) ChangePassword(info PasswordChangeInfo) error {
changeSql := fmt.Sprintf("ALTER USER \"%s\" WITH PASSWORD '%s'", info.Username, info.Password)
if err := r.ExecSQL(changeSql, info.Timeout); err != nil {
return err
}
return nil
}
func (r *Local) Backup(info BackupInfo) error {
fileOp := files.NewFileOp()
if !fileOp.Stat(info.TargetDir) {
if err := os.MkdirAll(info.TargetDir, os.ModePerm); err != nil {
return fmt.Errorf("mkdir %s failed, err: %v", info.TargetDir, err)
}
}
outfile, _ := os.OpenFile(path.Join(info.TargetDir, info.FileName), os.O_RDWR|os.O_CREATE, 0755)
global.LOG.Infof("start to pg_dump | gzip > %s.gzip", info.TargetDir+"/"+info.FileName)
cmd := exec.Command("docker", "exec", r.ContainerName, "pg_dump", "-F", "c", "-U", r.Username, "-d", info.Name)
gzipCmd := exec.Command("gzip", "-cf")
gzipCmd.Stdin, _ = cmd.StdoutPipe()
gzipCmd.Stdout = outfile
_ = gzipCmd.Start()
_ = cmd.Run()
_ = gzipCmd.Wait()
return nil
}
func (r *Local) Recover(info RecoverInfo) error {
fi, _ := os.Open(info.SourceFile)
defer fi.Close()
cmd := exec.Command("docker", "exec", "-i", r.ContainerName, "pg_restore", "-F", "c", "-c", "-U", r.Username, "-d", info.Name)
if strings.HasSuffix(info.SourceFile, ".gz") {
gzipFile, err := os.Open(info.SourceFile)
if err != nil {
return err
}
defer gzipFile.Close()
gzipReader, err := gzip.NewReader(gzipFile)
if err != nil {
return err
}
defer gzipReader.Close()
cmd.Stdin = gzipReader
} else {
cmd.Stdin = fi
}
stdout, err := cmd.CombinedOutput()
if err != nil || strings.HasPrefix(string(stdout), "ERROR ") {
return errors.New(string(stdout))
}
return nil
}
func (r *Local) ReloadConf() error {
return nil
}
func (r *Local) SyncDB() ([]SyncDBInfo, error) {
var datas []SyncDBInfo
lines, err := r.ExecSQLForRows("SELECT datname FROM pg_database", 300)
if err != nil {
return datas, err
}
for _, line := range lines {
if line == "postgres" || line == "template1" || line == "template0" || line == r.Username {
continue
}
datas = append(datas, SyncDBInfo{Name: line, From: "local", PostgresqlName: r.Database})
}
return datas, nil
}
func (r *Local) Close() {}
func (r *Local) ExecSQL(command string, timeout uint) error {
itemCommand := r.PrefixCommand[:]
itemCommand = append(itemCommand, command)
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, "docker", itemCommand...)
stdout, err := cmd.CombinedOutput()
if ctx.Err() == context.DeadlineExceeded {
return buserr.New(constant.ErrExecTimeOut)
}
if err != nil || strings.HasPrefix(string(stdout), "ERROR ") {
return errors.New(string(stdout))
}
return nil
}
func (r *Local) ExecSQLForRows(command string, timeout uint) ([]string, error) {
itemCommand := r.PrefixCommand[:]
itemCommand = append(itemCommand, command)
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, "docker", itemCommand...)
stdout, err := cmd.CombinedOutput()
if ctx.Err() == context.DeadlineExceeded {
return nil, buserr.New(constant.ErrExecTimeOut)
}
if err != nil || strings.HasPrefix(string(stdout), "ERROR ") {
return nil, errors.New(string(stdout))
}
return strings.Split(string(stdout), "\n"), nil
}