gotosocial/internal/oauth/oauth.go
2021-03-15 23:05:24 +01:00

95 lines
3.1 KiB
Go

/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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 <http://www.gnu.org/licenses/>.
*/
package oauth
import (
"github.com/go-pg/pg/v10"
"github.com/gotosocial/gotosocial/internal/api"
"github.com/gotosocial/gotosocial/internal/gtsmodel"
"github.com/gotosocial/oauth2/v4"
"github.com/gotosocial/oauth2/v4/errors"
"github.com/gotosocial/oauth2/v4/manage"
"github.com/gotosocial/oauth2/v4/server"
"github.com/sirupsen/logrus"
"golang.org/x/crypto/bcrypt"
)
type API struct {
manager *manage.Manager
server *server.Server
conn *pg.DB
log *logrus.Logger
}
func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.Logger) *API {
manager := manage.NewDefaultManager()
manager.MapTokenStorage(ts)
manager.MapClientStorage(cs)
srv := server.NewDefaultServer(manager)
srv.SetInternalErrorHandler(func(err error) *errors.Response {
log.Errorf("internal oauth error: %s", err)
return nil
})
srv.SetResponseErrorHandler(func(re *errors.Response) {
log.Errorf("internal response error: %s", re.Error)
})
return &API{
manager: manager,
server: srv,
conn: conn,
log: log,
}
}
func (a *API) AddRoutes(s api.Server) error {
return nil
}
func incorrectPassword() (string, error) {
return "", errors.New("password/email combination was incorrect")
}
func (a *API) PasswordAuthorizationHandler(email string, password string) (userid string, err error) {
// first we select the user from the database based on email address, bail if no user found for that email
gtsUser := &gtsmodel.User{}
if err := a.conn.Model(gtsUser).Where("email = ?", email).Select(); err != nil {
a.log.Debugf("user %s was not retrievable from db during oauth authorization attempt: %s", email, err)
return incorrectPassword()
}
// make sure a password is actually set and bail if not
if gtsUser.EncryptedPassword == "" {
a.log.Warnf("encrypted password for user %s was empty for some reason", gtsUser.Email)
return incorrectPassword()
}
// compare the provided password with the encrypted one from the db, bail if they don't match
if err := bcrypt.CompareHashAndPassword([]byte(gtsUser.EncryptedPassword), []byte(password)); err != nil {
a.log.Debugf("password hash didn't match for user %s during login attempt: %s", gtsUser.Email, err)
return incorrectPassword()
}
// If we've made it this far the email/password is correct so we need the oauth client-id of the user
// This is, conveniently, the same as the user ID, so we can just return it.
userid = gtsUser.ID
return
}