GoToSocial/internal/api/security/useragentblock.go

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/*
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
}
}