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Diffstat (limited to '')
-rw-r--r-- | session.go | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/session.go b/session.go new file mode 100644 index 0000000..be83c5c --- /dev/null +++ b/session.go @@ -0,0 +1,54 @@ +/* + * Session checking functions + * + * Copyright (C) 2024 Runxi Yu <https://runxiyu.org> + * SPDX-License-Identifier: AGPL-3.0-or-later + * + * 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 <https://www.gnu.org/licenses/>. + */ + +package main + +import ( + "errors" + "net/http" + + "github.com/jackc/pgx/v5" +) + +func getUserInfoFromRequest(req *http.Request) (userID, username, department string, retErr error) { + sessionCookie, err := req.Cookie("session") + if errors.Is(err, http.ErrNoCookie) { + retErr = wrapError(errNoCookie, err) + return + } else if err != nil { + retErr = wrapError(errCannotCheckCookie, err) + return + } + + err = db.QueryRow( + req.Context(), + "SELECT id, name, department FROM users WHERE session = $1", + sessionCookie.Value, + ).Scan(&userID, &username, &department) + if err != nil { + if errors.Is(err, pgx.ErrNoRows) { + retErr = errNoSuchUser + return + } + retErr = wrapError(errUnexpectedDBError, err) + return + } + return +} |