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fix(windows): build with app exe compatible fork

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Jan De Dobbeleer 2022-12-16 13:43:58 +01:00 committed by Jan De Dobbeleer
parent 3cba6f74ea
commit 5047390bc4
3 changed files with 0 additions and 69 deletions
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6
src/platform/shell.go
View file

@ -531,12 +531,6 @@ func (env *Shell) CommandPath(command string) string {
env.Debug("CommandPath", path)
return path
}
path, err = env.LookWinAppPath(command)
if err == nil {
env.cmdCache.set(command, path)
env.Debug("CommandPath", path)
return path
}
env.Error("CommandPath", err)
return ""
}

21
src/platform/shell_windows.go
View file

@ -4,7 +4,6 @@ import (
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"syscall"
"time"
@ -118,26 +117,6 @@ func (env *Shell) CachePath() string {
return env.Home()
}
func (env *Shell) LookWinAppPath(file string) (string, error) {
winAppPath := filepath.Join(env.Getenv("LOCALAPPDATA"), `\Microsoft\WindowsApps\`)
if !strings.HasSuffix(file, ".exe") {
file += ".exe"
}
isWinStoreApp := func() bool {
pattern := winAppPath + env.PathSeparator() + file
matches, err := filepath.Glob(pattern)
if err != nil {
return false
}
return len(matches) != 0
}
if isWinStoreApp() {
commandFile := filepath.Join(winAppPath, file)
return readWinAppLink(commandFile)
}
return "", errors.New("no Windows Store App")
}
// Takes a registry path to a key like
//
// "HKLM\Software\Microsoft\Windows NT\CurrentVersion\EditionID"

42
src/platform/win32_windows.go
View file

@ -155,48 +155,6 @@ func (rb *AppExecLinkReparseBuffer) Path() (string, error) {
return link, nil
}
// openSymlink calls CreateFile Windows API with FILE_FLAG_OPEN_REPARSE_POINT
// parameter, so that Windows does not follow symlink, if path is a symlink.
// openSymlink returns opened file handle.
func openSymlink(path string) (syscall.Handle, error) {
p, err := syscall.UTF16PtrFromString(path)
if err != nil {
return 0, err
}
attrs := uint32(syscall.FILE_FLAG_BACKUP_SEMANTICS)
// Use FILE_FLAG_OPEN_REPARSE_POINT, otherwise CreateFile will follow symlink.
// See https://docs.microsoft.com/en-us/windows/desktop/FileIO/symbolic-link-effects-on-file-systems-functions#createfile-and-createfiletransacted
attrs |= syscall.FILE_FLAG_OPEN_REPARSE_POINT
h, err := syscall.CreateFile(p, 0, 0, nil, syscall.OPEN_EXISTING, attrs, 0)
if err != nil {
return 0, err
}
return h, nil
}
func readWinAppLink(path string) (string, error) {
h, err := openSymlink(path)
if err != nil {
return "", err
}
defer syscall.CloseHandle(h) //nolint: errcheck
rdbbuf := make([]byte, syscall.MAXIMUM_REPARSE_DATA_BUFFER_SIZE)
var bytesReturned uint32
err = syscall.DeviceIoControl(h, syscall.FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil)
if err != nil {
return "", err
}
rdb := (*REPARSE_DATA_BUFFER)(unsafe.Pointer(&rdbbuf[0]))
rb := (*GenericDataBuffer)(unsafe.Pointer(&rdb.DUMMYUNIONNAME))
appExecLink := (*AppExecLinkReparseBuffer)(unsafe.Pointer(&rb.DataBuffer))
if appExecLink.Version != 3 {
return "", errors.New("unknown AppExecLink version")
}
return appExecLink.Path()
}
var (
advapi = syscall.NewLazyDLL("advapi32.dll")
procGetAce = advapi.NewProc("GetAce")