dnote/pkg/cli/cmd/logout/logout.go
2023-03-11 18:06:40 +11:00

99 lines
2.5 KiB
Go

/* Copyright (C) 2019, 2020, 2021, 2022, 2023 Monomax Software Pty Ltd
*
* This file is part of Dnote.
*
* Dnote is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Dnote 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
*/
package logout
import (
"database/sql"
"github.com/dnote/dnote/pkg/cli/client"
"github.com/dnote/dnote/pkg/cli/command"
"github.com/dnote/dnote/pkg/cli/consts"
"github.com/dnote/dnote/pkg/cli/context"
"github.com/dnote/dnote/pkg/cli/database"
"github.com/dnote/dnote/pkg/cli/infra"
"github.com/dnote/dnote/pkg/cli/log"
"github.com/pkg/errors"
)
// ErrNotLoggedIn is an error for logging out when not logged in
var ErrNotLoggedIn = errors.New("not logged in")
var example = `
dnote logout`
// NewCmd returns a new logout command
func NewCmd(ctx context.DnoteCtx) *command.Command {
cmd := &command.Command{
Use: "logout",
Short: "Logout from the server",
Example: example,
RunE: newRun(ctx),
}
return cmd
}
// Do performs logout
func Do(ctx context.DnoteCtx) error {
db := ctx.DB
tx, err := db.Begin()
if err != nil {
return errors.Wrap(err, "beginning a transaction")
}
var key string
err = database.GetSystem(tx, consts.SystemSessionKey, &key)
if errors.Cause(err) == sql.ErrNoRows {
return ErrNotLoggedIn
} else if err != nil {
return errors.Wrap(err, "getting session key")
}
err = client.Signout(ctx, key)
if err != nil {
return errors.Wrap(err, "requesting logout")
}
if err := database.DeleteSystem(tx, consts.SystemSessionKey); err != nil {
return errors.Wrap(err, "deleting session key")
}
if err := database.DeleteSystem(tx, consts.SystemSessionKeyExpiry); err != nil {
return errors.Wrap(err, "deleting session key expiry")
}
tx.Commit()
return nil
}
func newRun(ctx context.DnoteCtx) infra.RunEFunc {
return func(cmd *command.Command, args []string) error {
err := Do(ctx)
if err == ErrNotLoggedIn {
log.Error("not logged in\n")
return nil
} else if err != nil {
return errors.Wrap(err, "logging out")
}
log.Success("logged out\n")
return nil
}
}