Fix: Postgres fails to connect when using special characters (#7262)

* Update client.go

* Update remote.go

* Update client.go

Author: yuki-node

backend/utils/postgresql/client.go

@@ -32,7 +32,11 @@ func NewPostgresqlClient(conn client.DBInfo) (PostgresqlClient, error) {
 		return client.NewLocal(connArgs, conn.Address, conn.Username, conn.Password, conn.Database), nil
 	}
 
-	connArgs := fmt.Sprintf("postgres://%s:%s@%s:%d/?sslmode=disable", conn.Username, conn.Password, conn.Address, conn.Port)
+	// Escape username and password to handle special characters
+	escapedUsername := url.QueryEscape(username)
+	escapedPassword := url.QueryEscape(password)
+
+	connArgs := fmt.Sprintf("postgres://%s:%s@%s:%d/?sslmode=disable", escapedUsername, escapedPassword, conn.Address, conn.Port)
 	db, err := sql.Open("pgx", connArgs)
 	if err != nil {
 		return nil, err

backend/utils/postgresql/client/remote.go

@@ -134,7 +134,7 @@ func (r *Remote) Backup(info BackupInfo) error {
 	}
 	fileNameItem := info.TargetDir + "/" + strings.TrimSuffix(info.FileName, ".gz")
 	backupCommand := exec.Command("bash", "-c",
-		fmt.Sprintf("docker run --rm --net=host -i %s /bin/bash -c 'PGPASSWORD=%s pg_dump  -h %s -p %d --no-owner -Fc -U %s %s' > %s",
+		fmt.Sprintf("docker run --rm --net=host -i %s -e PGPASSWORD='%s' /bin/bash -c 'pg_dump -h %s -p %d --no-owner -Fc -U %s %s' > %s",
 			imageTag, r.Password, r.Address, r.Port, r.User, info.Name, fileNameItem))
 	_ = backupCommand.Run()
 	b := make([]byte, 5)
@@ -177,7 +177,7 @@ func (r *Remote) Recover(info RecoverInfo) error {
 		}()
 	}
 	recoverCommand := exec.Command("bash", "-c",
-		fmt.Sprintf("docker run --rm --net=host -i %s /bin/bash -c 'PGPASSWORD=%s pg_restore -h %s -p %d --verbose --clean --no-privileges --no-owner -Fc -U %s -d %s --role=%s' < %s",
+		fmt.Sprintf("docker run --rm --net=host -i %s -e PGPASSWORD='%s' /bin/bash -c 'pg_restore -h %s -p %d --verbose --clean --no-privileges --no-owner -Fc -U %s -d %s --role=%s' < %s",
 			imageTag, r.Password, r.Address, r.Port, r.User, info.Name, info.Username, fileName))
 	pipe, _ := recoverCommand.StdoutPipe()
 	stderrPipe, _ := recoverCommand.StderrPipe()