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81 lines
2.0 KiB
Go
81 lines
2.0 KiB
Go
/*
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Copyright (C) 2024 Pagefault Games
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package account
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import (
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"bytes"
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"crypto/rand"
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"database/sql"
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"encoding/base64"
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"errors"
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"fmt"
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"github.com/pagefaultgames/rogueserver/db"
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)
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type LoginResponse GenericAuthResponse
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// /account/login - log into account
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func Login(username, password string) (LoginResponse, error) {
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var response LoginResponse
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if !isValidUsername(username) {
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return response, fmt.Errorf("invalid username")
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}
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if len(password) < 6 {
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return response, fmt.Errorf("invalid password")
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}
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key, salt, err := db.FetchAccountKeySaltFromUsername(username)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return response, fmt.Errorf("account doesn't exist")
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}
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return response, err
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}
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if !bytes.Equal(key, deriveArgon2IDKey([]byte(password), salt)) {
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return response, fmt.Errorf("password doesn't match")
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}
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response.Token, err = GenerateTokenForUsername(username)
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if err != nil {
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return response, fmt.Errorf("failed to generate token: %s", err)
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}
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return response, nil
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}
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func GenerateTokenForUsername(username string) (string, error) {
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token := make([]byte, TokenSize)
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_, err := rand.Read(token)
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if err != nil {
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return "", fmt.Errorf("failed to generate token: %s", err)
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}
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err = db.AddAccountSession(username, token)
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if err != nil {
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return "", fmt.Errorf("failed to add account session")
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}
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return base64.StdEncoding.EncodeToString(token), nil
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}
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