1 files changed, 158 insertions, 0 deletions
diff --git a/ui/syntax/confview.go b/ui/syntax/confview.go
new file mode 100644
index 00000000..b88a7702
--- /dev/null
+++ b/ui/syntax/confview.go
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ */
+
+package syntax
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"unsafe"
+
+	"github.com/lxn/walk"
+	"golang.zx2c4.com/wireguard/windows/conf"
+)
+
+// #include "confview.h"
+import "C"
+
+type ConfView struct {
+	walk.WidgetBase
+	lastRtf string
+}
+
+func init() {
+	C.register_conf_view()
+}
+
+func (cv *ConfView) LayoutFlags() walk.LayoutFlags {
+	return walk.GrowableHorz | walk.GrowableVert | walk.GreedyHorz | walk.GreedyVert
+}
+
+func (cv *ConfView) MinSizeHint() walk.Size {
+	return walk.Size{20, 12}
+}
+
+func (cv *ConfView) SizeHint() walk.Size {
+	return walk.Size{200, 100}
+}
+
+func (cv *ConfView) SetConfiguration(conf *conf.Config) {
+	var output strings.Builder
+
+	if conf == nil {
+		t := byte(0)
+		cv.SendMessage(C.PV_NEWRTF, uintptr(unsafe.Pointer(&t)), 0)
+		return
+	}
+
+	escape := func(s string) string {
+		var o strings.Builder
+		for i := 0; i < len(s); i++ {
+			if s[i] > 127 || s[i] == '}' || s[i] == '{' || s[i] == '\\' {
+				o.WriteString(fmt.Sprintf("\\'%d", s[i]))
+				continue
+			}
+			o.WriteByte(s[i])
+		}
+		return o.String()
+	}
+	field := func(key, value string) {
+		output.WriteString(fmt.Sprintf("{\\b %s:} %s\\par", escape(key), escape(value)))
+	}
+
+	output.WriteString("{\\rtf1\\ansi\\fs20")
+
+	field("Interface", conf.Name)
+	field("Public Key", conf.Interface.PrivateKey.Public().String())
+	if conf.Interface.ListenPort > 0 {
+		field("Listen Port", strconv.Itoa(int(conf.Interface.ListenPort)))
+	}
+
+	if conf.Interface.Mtu > 0 {
+		field("MTU", strconv.Itoa(int(conf.Interface.Mtu)))
+	}
+
+	if len(conf.Interface.Addresses) > 0 {
+		addrStrings := make([]string, len(conf.Interface.Addresses))
+		for i, address := range conf.Interface.Addresses {
+			addrStrings[i] = address.String()
+		}
+		field("Address", strings.Join(addrStrings[:], ", "))
+	}
+
+	if len(conf.Interface.Dns) > 0 {
+		addrStrings := make([]string, len(conf.Interface.Dns))
+		for i, address := range conf.Interface.Dns {
+			addrStrings[i] = address.String()
+		}
+		field("DNS", strings.Join(addrStrings[:], ", "))
+	}
+
+	for _, peer := range conf.Peers {
+		output.WriteString("\\par")
+		field("Peer", peer.PublicKey.String())
+
+		if !peer.PresharedKey.IsZero() {
+			output.WriteString("{\\b Preshared Key:} {\\i enabled}\\par")
+		}
+
+		if len(peer.AllowedIPs) > 0 {
+			addrStrings := make([]string, len(peer.AllowedIPs))
+			for i, address := range peer.AllowedIPs {
+				addrStrings[i] = address.String()
+			}
+			field("Allowed IPs", strings.Join(addrStrings[:], ", "))
+		}
+
+		if !peer.Endpoint.IsEmpty() {
+			field("Endpoint", peer.Endpoint.String())
+		}
+
+		if peer.PersistentKeepalive > 0 {
+			field("Persistent Keepalive", strconv.Itoa(int(peer.PersistentKeepalive)))
+		}
+
+		if !peer.LastHandshakeTime.IsEmpty() {
+			field("Latest Handshake", peer.LastHandshakeTime.String())
+		}
+
+		if peer.RxBytes > 0 || peer.TxBytes > 0 {
+			field("Transfer", fmt.Sprintf("%s received, %s sent", peer.RxBytes.String(), peer.TxBytes.String()))
+		}
+	}
+
+	output.WriteString("}")
+
+	text := output.String()
+	if text == cv.lastRtf {
+		return
+	}
+	cv.lastRtf = text
+
+	t := C.CString(text)
+	cv.SendMessage(C.PV_NEWRTF, uintptr(unsafe.Pointer(t)), 0)
+	C.free(unsafe.Pointer(t))
+}
+
+func NewConfView(parent walk.Container) (*ConfView, error) {
+	cv := &ConfView{
+		lastRtf: "",
+	}
+	err := walk.InitWidget(
+		cv,
+		parent,
+		"WgConfView",
+		C.CONFVIEW_STYLE,
+		C.CONFVIEW_EXTSTYLE,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	cv.GraphicsEffects().Add(walk.InteractionEffect)
+	cv.GraphicsEffects().Add(walk.FocusEffect)
+	return cv, nil
+}