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ftpd: allow to require TLS on a per-user basis

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Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
This commit is contained in:
Nicola Murino
2022-07-26 18:51:39 +02:00
parent 81de7d271e
commit ec5da8b4a5
15 changed files with 182 additions and 21 deletions
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17
internal/ftpd/server.go
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@@ -221,6 +221,23 @@ func (s *Server) AuthUser(cc ftpserver.ClientContext, username, password string)
return connection, nil
}
// PreAuthUser implements the MainDriverExtensionUserVerifier interface
func (s *Server) PreAuthUser(cc ftpserver.ClientContext, username string) error {
if s.binding.TLSMode == 0 && s.tlsConfig != nil {
user, err := dataprovider.GetFTPPreAuthUser(username, util.GetIPFromRemoteAddress(cc.RemoteAddr().String()))
if err == nil {
if user.Filters.FTPSecurity == 1 {
return cc.SetTLSRequirement(ftpserver.MandatoryEncryption)
}
return nil
}
if _, ok := err.(*util.RecordNotFoundError); !ok {
return common.ErrInternalFailure
}
}
return nil
}
// WrapPassiveListener implements the MainDriverExtensionPassiveWrapper interface
func (s *Server) WrapPassiveListener(listener net.Listener) (net.Listener, error) {
if s.binding.HasProxy() {