Wireguard: Add basic support

1 files changed, 26 insertions, 0 deletions

diff --git a/src/wireguard.go b/src/wireguard.go
new file mode 100644
index 0000000..9441c51
--- /dev/null
+++ b/src/wireguard.go
@@ -0,0 +1,26 @@
+package eduvpn
+
+import (
+	"fmt"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"regexp"
+)
+
+func WireguardGenerateKey() (wgtypes.Key, error) {
+	key, error := wgtypes.GeneratePrivateKey()
+	return key, error
+}
+
+// FIXME: Instead of doing a regex replace, decide if we should use a parser
+func WireguardConfigAddKey(config string, key wgtypes.Key) string {
+	interface_section := "[Interface]"
+	interface_section_escaped := regexp.QuoteMeta(interface_section)
+
+	// (?m) enables multi line mode
+	// ^ match from beginning of line
+	// $ match till end of line
+	// So it matches [Interface] section exactly
+	interface_re := regexp.MustCompile(fmt.Sprintf("(?m)^%s$", interface_section_escaped))
+	to_replace := fmt.Sprintf("%s\nPrivateKey = %s", interface_section, key.String())
+	return interface_re.ReplaceAllString(config, to_replace)
+}