GoToSocial/internal/api/security/useragentblock.go

36 lines
1.1 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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 (
"errors"
"net/http"
"github.com/gin-gonic/gin"
)
// UserAgentBlock aborts requests with empty user agent strings.
func (m *Module) UserAgentBlock(c *gin.Context) {
if ua := c.Request.UserAgent(); ua == "" {
code := http.StatusTeapot
err := errors.New(http.StatusText(code) + ": no user-agent sent with request")
c.AbortWithStatusJSON(code, gin.H{"error": err.Error()})
}
}