1 files changed, 49 insertions, 0 deletions
diff --git a/pkg/auth/mechanism.go b/pkg/auth/mechanism.go
new file mode 100644
index 0000000..8a28739
--- /dev/null
+++ b/pkg/auth/mechanism.go
@@ -0,0 +1,49 @@
+// Copyright (C) 2019 LEAP
+//
+// 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, 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 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 auth
+
+import (
+	"0xacab.org/leap/vpnweb/pkg/auth/anon"
+	"0xacab.org/leap/vpnweb/pkg/auth/sip2"
+	"0xacab.org/leap/vpnweb/pkg/config"
+	"log"
+)
+
+func GetAuthenticator(opts *config.Opts, skipConnect bool) Authenticator {
+	switch opts.Auth {
+	case anon.Label:
+		return anon.GetAuthenticator(opts, skipConnect)
+	case sip2.Label:
+		doAuthenticationChecks(opts)
+		return sip2.GetAuthenticator(opts, skipConnect)
+	default:
+		bailOnBadAuthModule(opts.Auth)
+	}
+	return nil
+}
+
+func doAuthenticationChecks(opts *config.Opts) {
+	if opts.AuthSecret == "" {
+		log.Fatal("Need to provide an AuthSecret value for SIP Authentication")
+	}
+	if len(opts.AuthSecret) < 20 {
+		log.Fatal("Please provider an AuthSecret longer than 20 chars")
+	}
+}
+
+func bailOnBadAuthModule(module string) {
+	log.Fatal("Unknown auth module: '", module, "'. Should be one of: ", sip2.Label, ", ", anon.Label, ".")
+}