ui: syntax: implement trafic blocking semantics

This is our "auto kill switch".

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 0 insertions, 125 deletions

diff --git a/ui/util.go b/ui/util.go
deleted file mode 100644
index 0cca0909..00000000
--- a/ui/util.go
+++ /dev/null
@@ -1,125 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
- */
-
-package ui
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/lxn/walk"
-)
-
-type orderedStringSet struct {
-	items      []string
-	item2index map[string]int
-}
-
-func orderedStringSetFromSlice(items []string) *orderedStringSet {
-	oss := newOrderedStringSet()
-	oss.AddMany(items)
-	return oss
-}
-
-func newOrderedStringSet() *orderedStringSet {
-	return &orderedStringSet{item2index: make(map[string]int)}
-}
-
-func (oss *orderedStringSet) Add(item string) bool {
-	if _, ok := oss.item2index[item]; ok {
-		return false
-	}
-
-	oss.item2index[item] = len(oss.items)
-	oss.items = append(oss.items, item)
-	return true
-}
-
-func (oss *orderedStringSet) AddMany(items []string) {
-	for _, item := range items {
-		oss.Add(item)
-	}
-}
-
-func (oss *orderedStringSet) UniteWith(other *orderedStringSet) {
-	if other == oss {
-		return
-	}
-
-	oss.AddMany(other.items)
-}
-
-func (oss *orderedStringSet) Remove(item string) bool {
-	if i, ok := oss.item2index[item]; ok {
-		oss.items = append(oss.items[:i], oss.items[i+1:]...)
-		delete(oss.item2index, item)
-		return true
-	}
-
-	return false
-}
-
-func (oss *orderedStringSet) Len() int {
-	return len(oss.items)
-}
-
-func (oss *orderedStringSet) ToSlice() []string {
-	return append(([]string)(nil), oss.items...)
-}
-
-func (oss *orderedStringSet) Contains(item string) bool {
-	_, ok := oss.item2index[item]
-	return ok
-}
-
-func (oss *orderedStringSet) IsSupersetOf(other *orderedStringSet) bool {
-	if oss.Len() < other.Len() {
-		return false
-	}
-
-	for _, item := range other.items {
-		if !oss.Contains(item) {
-			return false
-		}
-	}
-
-	return true
-}
-
-func (oss *orderedStringSet) String() string {
-	return fmt.Sprintf("%v", oss.items)
-}
-
-func writeFileWithOverwriteHandling(owner walk.Form, filePath string, write func(file *os.File) error) bool {
-	showError := func(err error) bool {
-		if err == nil {
-			return false
-		}
-
-		walk.MsgBox(owner, "Writing file failed", err.Error(), walk.MsgBoxIconError)
-
-		return true
-	}
-
-	file, err := os.OpenFile(filePath, os.O_CREATE|os.O_WRONLY|os.O_EXCL, 0600)
-	if err != nil {
-		if os.IsExist(err) {
-			if walk.DlgCmdNo == walk.MsgBox(owner, "Writing file failed", fmt.Sprintf(`File "%s" already exists.
-
-Do you want to overwrite it?`, filePath), walk.MsgBoxYesNo|walk.MsgBoxDefButton2|walk.MsgBoxIconWarning) {
-				return false
-			}
-
-			if file, err = os.Create(filePath); err != nil {
-				return !showError(err)
-			}
-		} else {
-			return !showError(err)
-		}
-	}
-	defer file.Close()
-
-	return !showError(write(file))
-}