318 lines
7.6 KiB
Go
318 lines
7.6 KiB
Go
package blocker
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import (
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"log"
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"os"
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"strings"
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"sync"
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"syscall"
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"time"
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"unsafe"
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)
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var (
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user32 = syscall.NewLazyDLL("user32.dll")
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procEnumWindows = user32.NewProc("EnumWindows")
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procIsWindowVisible = user32.NewProc("IsWindowVisible")
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procGetWindowTextW = user32.NewProc("GetWindowTextW")
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procGetWindowTextLengthW = user32.NewProc("GetWindowTextLengthW")
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procGetWindowThreadProcessId = user32.NewProc("GetWindowThreadProcessId")
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procGetWindow = user32.NewProc("GetWindow")
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procGetWindowLongW = user32.NewProc("GetWindowLongW")
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dwmapi = syscall.NewLazyDLL("dwmapi.dll")
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procDwmGetWindowAttribute = dwmapi.NewProc("DwmGetWindowAttribute")
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kernel32 = syscall.NewLazyDLL("kernel32.dll")
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)
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const (
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GW_OWNER = 4
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WS_EX_TOOLWINDOW = 0x00000080
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DWMWA_CLOAKED = 14
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)
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func isRealGUIWindow(hwnd uintptr) bool {
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// 1. Phải đang hiển thị
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ret, _, _ := procIsWindowVisible.Call(hwnd)
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if ret == 0 {
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return false
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}
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// 2. Không được có chủ sở hữu (phải là cửa sổ chính - top-level)
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owner, _, _ := procGetWindow.Call(hwnd, GW_OWNER)
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if owner != 0 {
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return false
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}
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// 3. Không phải là tool window (WS_EX_TOOLWINDOW)
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gwlExStyle := int32(-20) // GWL_EXSTYLE = -20
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style, _, _ := procGetWindowLongW.Call(hwnd, uintptr(gwlExStyle))
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if (style & WS_EX_TOOLWINDOW) != 0 {
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return false
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}
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// 4. Không bị cloaked bởi DWM (ví dụ: app UWP bị treo/chạy ngầm, màn hình ảo)
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var cloaked uint32
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hr, _, _ := procDwmGetWindowAttribute.Call(hwnd, DWMWA_CLOAKED, uintptr(unsafe.Pointer(&cloaked)), 4)
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if hr == 0 && cloaked != 0 {
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return false
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}
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return true
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}
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type WindowInfo struct {
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PID uint32
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Title string
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ProcessName string
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}
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type Blocker struct {
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mu sync.Mutex
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allowedKeywords []string
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running bool
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stopChan chan struct{}
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OnBlocked func(procName string, title string)
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OnKill func(procName string, title string)
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}
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var Instance = &Blocker{
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allowedKeywords: []string{"chrome", "idea64", "vscode", "wails", "simple_care", "client"},
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stopChan: make(chan struct{}),
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}
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func getProcessMap() (map[uint32]string, error) {
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snapshot, err := syscall.CreateToolhelp32Snapshot(syscall.TH32CS_SNAPPROCESS, 0)
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if err != nil {
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return nil, err
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}
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defer syscall.CloseHandle(snapshot)
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var pe syscall.ProcessEntry32
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pe.Size = uint32(unsafe.Sizeof(pe))
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err = syscall.Process32First(snapshot, &pe)
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if err != nil {
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return nil, err
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}
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pm := make(map[uint32]string)
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for {
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name := syscall.UTF16ToString(pe.ExeFile[:])
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pm[pe.ProcessID] = name
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err = syscall.Process32Next(snapshot, &pe)
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if err != nil {
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break
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}
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}
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return pm, nil
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}
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func getWindowText(hwnd uintptr) string {
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length, _, _ := procGetWindowTextLengthW.Call(hwnd)
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if length == 0 {
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return ""
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}
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buf := make([]uint16, length+1)
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procGetWindowTextW.Call(hwnd, uintptr(unsafe.Pointer(&buf[0])), length+1)
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return syscall.UTF16ToString(buf)
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}
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var (
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enumWindowsMutex sync.Mutex
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enumWindowsList []WindowInfo
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enumProcessMap map[uint32]string
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)
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var enumWindowsCallback = syscall.NewCallback(func(hwnd uintptr, lParam uintptr) uintptr {
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defer func() {
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if r := recover(); r != nil {
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log.Printf("[BLOCKER] Callback panic recovered: %v", r)
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}
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}()
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if !isRealGUIWindow(hwnd) {
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return 1
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}
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title := getWindowText(hwnd)
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if title == "" {
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return 1
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}
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var pid uint32
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procGetWindowThreadProcessId.Call(hwnd, uintptr(unsafe.Pointer(&pid)))
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procName := enumProcessMap[pid]
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if procName == "" {
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procName = "Unknown"
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}
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enumWindowsList = append(enumWindowsList, WindowInfo{
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PID: pid,
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Title: title,
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ProcessName: procName,
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})
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return 1
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})
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func EnumerateGUIWindows() ([]WindowInfo, error) {
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pMap, err := getProcessMap()
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if err != nil {
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return nil, err
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}
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enumWindowsMutex.Lock()
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defer enumWindowsMutex.Unlock()
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enumWindowsList = make([]WindowInfo, 0, 100)
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enumProcessMap = pMap
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procEnumWindows.Call(enumWindowsCallback, 0)
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// Clean up map reference so GC can reclaim it
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enumProcessMap = nil
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// Copy to a new slice to return safely
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res := make([]WindowInfo, len(enumWindowsList))
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copy(res, enumWindowsList)
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return res, nil
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}
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func (b *Blocker) SetKeywords(keywords string) {
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b.mu.Lock()
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defer b.mu.Unlock()
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parts := strings.Split(keywords, ",")
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var list []string
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for _, p := range parts {
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trimmed := strings.TrimSpace(strings.ToLower(p))
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if trimmed != "" {
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list = append(list, trimmed)
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}
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}
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b.allowedKeywords = list
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log.Printf("[BLOCKER] Keywords updated: %v", b.allowedKeywords)
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}
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var systemAllowed = map[string]bool{
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"explorer.exe": true,
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"taskmgr.exe": true,
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"cmd.exe": true,
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"powershell.exe": true,
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"conhost.exe": true,
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"client.exe": true, // App Wails của ta
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"wails.exe": true,
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"msedgewebview2.exe": true, // WebView2 runtime của Wails
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"code.exe": true, // VSCode
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"cursor.exe": true, // Cursor
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"windsurf.exe": true, // Windsurf
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"goland.exe": true, // GoLand
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"goland64.exe": true, // GoLand
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"idea64.exe": true, // IntelliJ IDEA
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"clion64.exe": true, // CLion
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"webstorm64.exe": true, // WebStorm
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"pycharm64.exe": true, // PyCharm
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"rider64.exe": true, // Rider
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"studio64.exe": true, // Android Studio
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"eclipse.exe": true, // Eclipse
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"sublime_text.exe": true, // Sublime Text
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"notepad++.exe": true, // Notepad++
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"devenv.exe": true, // Visual Studio
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"git-bash.exe": true, // Git Bash
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"bash.exe": true, // Bash
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}
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func (b *Blocker) checkAndKill() {
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b.mu.Lock()
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keywords := make([]string, len(b.allowedKeywords))
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copy(keywords, b.allowedKeywords)
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b.mu.Unlock()
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// Nếu không cấu hình keyword thì không chặn gì cả
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if len(keywords) == 0 {
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return
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}
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windows, err := EnumerateGUIWindows()
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if err != nil {
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return
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}
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for _, w := range windows {
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pNameLower := strings.ToLower(w.ProcessName)
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wTitleLower := strings.ToLower(w.Title)
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// 1. Luôn cho phép hệ thống/app cốt lõi hoặc chính tiến trình này
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if w.PID == uint32(os.Getpid()) || systemAllowed[pNameLower] || strings.Contains(pNameLower, "antigravity") || strings.Contains(wTitleLower, "antigravity") {
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continue
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}
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// 2. Kiểm tra xem có chứa bất kỳ từ khóa nào được cho phép không
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allowed := false
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for _, kw := range keywords {
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if strings.Contains(pNameLower, kw) || strings.Contains(wTitleLower, kw) {
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allowed = true
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break
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}
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}
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// 3. Nếu không nằm trong whitelist, tắt ứng dụng
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if !allowed {
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if b.OnBlocked != nil {
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b.OnBlocked(w.ProcessName, w.Title)
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}
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log.Printf("[BLOCKER] KILLED unauthorized application: %s (PID: %d, Title: %s)", w.ProcessName, w.PID, w.Title)
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h, err := syscall.OpenProcess(syscall.PROCESS_TERMINATE, false, w.PID)
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if err == nil {
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errTerm := syscall.TerminateProcess(h, 0)
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_ = syscall.CloseHandle(h)
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if errTerm == nil && b.OnKill != nil {
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b.OnKill(w.ProcessName, w.Title)
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}
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}
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}
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}
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}
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func (b *Blocker) Start() {
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b.mu.Lock()
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if b.running {
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b.mu.Unlock()
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return
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}
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b.running = true
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b.stopChan = make(chan struct{})
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b.mu.Unlock()
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go func() {
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ticker := time.NewTicker(3 * time.Second)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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b.checkAndKill()
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case <-b.stopChan:
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return
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}
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}
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}()
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log.Println("[BLOCKER] Application Blocker Daemon Started.")
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}
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func (b *Blocker) Stop() {
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b.mu.Lock()
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defer b.mu.Unlock()
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if !b.running {
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return
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}
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b.running = false
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close(b.stopChan)
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log.Println("[BLOCKER] Application Blocker Daemon Stopped.")
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}
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