Various refactoring

[tofuproxy.git] / fifos / tls.go

diff --git a/fifos/tls.go b/fifos/tls.go
new file mode 100644 (file)
index 0000000..285ed3a
--- /dev/null
+++ b/fifos/tls.go
@@ -0,0 +1,62 @@
+/*
+tofuproxy -- flexible HTTP/HTTPS proxy, TLS terminator, X.509 TOFU
+             manager, WARC/geminispace browser
+Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package fifos
+
+import (
+       "crypto/tls"
+       "log"
+       "strings"
+
+       "go.cypherpunks.ru/ucspi"
+       "go.stargrave.org/tofuproxy/caches"
+)
+
+func addTLSAuth(p string) {
+       for {
+               for _, line := range readLinesFromFIFO(p) {
+                       cols := strings.SplitN(line, " ", 2)
+                       if len(cols) != 2 {
+                               log.Println("invalid add-tls-auth line format")
+                               continue
+                       }
+                       if cols[1] == "NONE" {
+                               caches.TLSAuthCacheM.Lock()
+                               caches.TLSAuthCache[cols[0]] = &tls.Certificate{}
+                               caches.TLSAuthCacheM.Unlock()
+                               log.Printf("%s: added host %s: NONE\n", p, cols[0])
+                               continue
+                       }
+                       _, cert, err := ucspi.CertificateFromFile(cols[1])
+                       if err != nil {
+                               log.Fatalln(err)
+                       }
+                       prv, err := ucspi.PrivateKeyFromFile(cols[1])
+                       if err != nil {
+                               log.Fatalln(err)
+                       }
+                       caches.TLSAuthCacheM.Lock()
+                       caches.TLSAuthCache[cols[0]] = &tls.Certificate{
+                               Certificate: [][]byte{cert.Raw},
+                               PrivateKey:  prv,
+                       }
+                       caches.TLSAuthCacheM.Unlock()
+                       log.Printf("%s: added host %s: %s\n", p, cols[0], cert.Subject)
+               }
+       }
+}