summaryrefslogtreecommitdiff
path: root/internal/api/security/useragentblock.go
blob: 1d1fff736f92a413cf942da596aa6f2b45999584 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*
   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 security

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/sirupsen/logrus"
)

// UserAgentBlock blocks requests with undesired, empty, or invalid user-agent strings.
func (m *Module) UserAgentBlock(c *gin.Context) {
	l := logrus.WithFields(logrus.Fields{
		"func": "UserAgentBlock",
	})

	if ua := c.Request.UserAgent(); ua == "" {
		l.Debug("aborting request because there's no user-agent set")
		c.AbortWithStatus(http.StatusTeapot)
		return
	}
}