2 tofuproxy -- HTTP proxy with TLS certificates management
3 Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
33 "go.cypherpunks.ru/ucspi"
34 "go.stargrave.org/tofuproxy/fifos"
39 type ClientCertificateGetter struct {
43 func (g *ClientCertificateGetter) get(
44 cri *tls.CertificateRequestInfo,
45 ) (*tls.Certificate, error) {
47 b.WriteString(fmt.Sprintf(`
48 wm title . "TLS client authentication: %s"
50 label .lVersion -text "Version: %s"
57 ucspi.TLSVersion(cri.Version),
60 ents, err := os.ReadDir(CCerts)
64 certs := make([]*x509.Certificate, 0, len(ents))
65 tlsCerts := make([]*tls.Certificate, 0, len(ents))
66 for i, ent := range ents {
67 p := filepath.Join(CCerts, ent.Name())
68 _, cert, err := ucspi.CertificateFromFile(p)
72 prv, err := ucspi.PrivateKeyFromFile(p)
76 certs = append(certs, cert)
77 tlsCerts = append(tlsCerts, &tls.Certificate{
78 Certificate: [][]byte{cert.Raw},
81 b.WriteString(fmt.Sprintf(".lb insert end \"%d: %s\"\n", i, cert.Subject))
92 button .submit -text "Use" -command submit
95 cmd := exec.Command(CmdWish)
97 out, err := cmd.Output()
101 lines := strings.Split(string(out), "\n")
103 return nil, errors.New("invalid output from authentication form")
105 t := strings.Split(lines[0], ":")[0]
106 i, err := strconv.Atoi(t)
108 return &tls.Certificate{}, nil
110 fifos.SinkCert <- fmt.Sprintf("ClientAuth\t%s\t%s", g.host, certs[i].Subject)
111 return tlsCerts[i], nil