pcmt/handlers/middleware.go
leo dbd0e9d01d
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go: implement session auth middleware
* simplify protection of endpoints
* role discernment still occures in respective handlers
* db client needs to be passed into handlers as a global var now
2023-05-30 23:50:37 +02:00

100 lines
2.5 KiB
Go

// Copyright 2023 wanderer <a_mirre at utb dot cz>
// SPDX-License-Identifier: AGPL-3.0-only
package handlers
import (
"context"
"net/http"
moduser "git.dotya.ml/mirre-mt/pcmt/modules/user"
"github.com/labstack/echo-contrib/session"
"github.com/labstack/echo/v4"
)
func MiddlewareSession(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
sess, _ := session.Get(setting.SessionCookieName(), c)
if sess == nil {
c.Logger().Info("No session found, unauthorised.")
// return a 404 instead of 401 to not disclose the existence of
// resources for unauthenticated users with no past sessions.
return echo.NewHTTPError(http.StatusNotFound).SetInternal(ErrNoSession)
}
uname := sess.Values["username"]
if uname == nil {
c.Logger().Debugf("%d - %s", http.StatusUnauthorized, "seassion expired or invalid")
// return echo.NewHTTPError(http.StatusUnauthorized).SetInternal(ErrSessionExpired)
return renderErrorPage(
c,
http.StatusUnauthorized,
http.StatusText(http.StatusUnauthorized),
ErrSessionExpired.Error(),
)
}
username, ok := sess.Values["username"].(string)
if !ok {
return renderErrorPage(
c,
http.StatusUnauthorized,
http.StatusText(http.StatusUnauthorized),
"username was nil",
)
}
log.Info("gorilla session", "username", username)
refreshSession(
sess,
"/",
// setting.SessionMaxAge,
86400,
true,
c.Request().URL.Scheme == "https", //nolint:goconst
http.SameSiteStrictMode,
)
if err := sess.Save(c.Request(), c.Response()); err != nil {
c.Logger().Error("failed to save session")
return renderErrorPage(
c,
http.StatusInternalServerError,
http.StatusText(http.StatusInternalServerError)+" (make sure you've got cookies enabled)",
err.Error(),
)
}
c.Set("sess", sess)
var u moduser.User
ctx := context.WithValue(context.Background(), moduser.CtxKey{}, slogger)
if usr, err := moduser.QueryUser(ctx, dbclient, username); err == nil && usr != nil {
u.ID = usr.ID
u.Username = usr.Username
u.IsAdmin = usr.IsAdmin
u.CreatedAt = usr.CreatedAt
u.IsActive = usr.IsActive
u.IsLoggedIn = true
} else {
c.Logger().Error(http.StatusText(http.StatusInternalServerError) + " - " + err.Error())
return renderErrorPage(
c,
http.StatusInternalServerError,
http.StatusText(http.StatusInternalServerError),
err.Error(),
)
}
c.Set("sloggerCtx", ctx)
c.Set("sessUsr", u)
return next(c)
}
}