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Run webview2 bootstrapper as normal user, not administrator
This commit is contained in:
Lea Anthony
parent
5b60fcc8f6
commit
dfb3ab0681
@ -1,232 +0,0 @@
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//go:build windows
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// +build windows
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// Original File (c) 2017 Yasuhiro Matsumoto: https://github.com/mattn/sudo/blob/master/win32.go
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// License: https://github.com/mattn/sudo/blob/master/LICENSE
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package webview2runtime
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import (
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"errors"
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"fmt"
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"os"
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"syscall"
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"unsafe"
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)
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var (
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modshell32 = syscall.NewLazyDLL("shell32.dll")
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procShellExecuteEx = modshell32.NewProc("ShellExecuteExW")
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)
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const (
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_SEE_MASK_DEFAULT = 0x00000000
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_SEE_MASK_CLASSNAME = 0x00000001
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_SEE_MASK_CLASSKEY = 0x00000003
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_SEE_MASK_IDLIST = 0x00000004
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_SEE_MASK_INVOKEIDLIST = 0x0000000C
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_SEE_MASK_ICON = 0x00000010
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_SEE_MASK_HOTKEY = 0x00000020
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_SEE_MASK_NOCLOSEPROCESS = 0x00000040
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_SEE_MASK_CONNECTNETDRV = 0x00000080
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_SEE_MASK_NOASYNC = 0x00000100
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_SEE_MASK_FLAG_DDEWAIT = 0x00000100
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_SEE_MASK_DOENVSUBST = 0x00000200
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_SEE_MASK_FLAG_NO_UI = 0x00000400
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_SEE_MASK_UNICODE = 0x00004000
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_SEE_MASK_NO_CONSOLE = 0x00008000
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_SEE_MASK_ASYNCOK = 0x00100000
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_SEE_MASK_NOQUERYCLASSSTORE = 0x01000000
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_SEE_MASK_HMONITOR = 0x00200000
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_SEE_MASK_NOZONECHECKS = 0x00800000
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_SEE_MASK_WAITFORINPUTIDLE = 0x02000000
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_SEE_MASK_FLAG_LOG_USAGE = 0x04000000
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_SEE_MASK_FLAG_HINST_IS_SITE = 0x08000000
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)
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const (
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_ERROR_BAD_FORMAT = 11
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)
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const (
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_SE_ERR_FNF = 2
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_SE_ERR_PNF = 3
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_SE_ERR_ACCESSDENIED = 5
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_SE_ERR_OOM = 8
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_SE_ERR_DLLNOTFOUND = 32
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_SE_ERR_SHARE = 26
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_SE_ERR_ASSOCINCOMPLETE = 27
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_SE_ERR_DDETIMEOUT = 28
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_SE_ERR_DDEFAIL = 29
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_SE_ERR_DDEBUSY = 30
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_SE_ERR_NOASSOC = 31
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)
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type (
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dword uint32
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hinstance syscall.Handle
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hkey syscall.Handle
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hwnd syscall.Handle
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ulong uint32
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lpctstr uintptr
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lpvoid uintptr
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)
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// SHELLEXECUTEINFO struct
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type _SHELLEXECUTEINFO struct {
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cbSize dword
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fMask ulong
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hwnd hwnd
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lpVerb lpctstr
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lpFile lpctstr
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lpParameters lpctstr
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lpDirectory lpctstr
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nShow int
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hInstApp hinstance
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lpIDList lpvoid
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lpClass lpctstr
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hkeyClass hkey
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dwHotKey dword
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hIconOrMonitor syscall.Handle
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hProcess syscall.Handle
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}
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// ShellExecuteAndWait is version of ShellExecuteEx which want process
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func ShellExecuteAndWait(hwnd hwnd, lpOperation, lpFile, lpParameters, lpDirectory string, nShowCmd int) error {
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var lpctstrVerb, lpctstrParameters, lpctstrDirectory, lpctstrFile lpctstr
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var err error
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if len(lpOperation) != 0 {
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lpctstrVerb, err = toUTF16(lpOperation)
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if err != nil {
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return err
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}
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}
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if len(lpParameters) != 0 {
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lpctstrParameters, err = toUTF16(lpParameters)
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if err != nil {
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return err
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}
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}
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if len(lpDirectory) != 0 {
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lpctstrDirectory, err = toUTF16(lpDirectory)
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if err != nil {
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return err
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}
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}
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if len(lpDirectory) != 0 {
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lpctstrFile, err = toUTF16(lpFile)
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if err != nil {
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return err
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}
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}
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i := &_SHELLEXECUTEINFO{
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fMask: _SEE_MASK_NOCLOSEPROCESS,
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hwnd: hwnd,
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lpVerb: lpctstrVerb,
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lpFile: lpctstrFile,
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lpParameters: lpctstrParameters,
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lpDirectory: lpctstrDirectory,
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nShow: nShowCmd,
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}
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i.cbSize = dword(unsafe.Sizeof(*i))
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return ShellExecuteEx(i)
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}
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func toUTF16(lpOperation string) (lpctstr, error) {
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result, err := syscall.UTF16PtrFromString(lpOperation)
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if err != nil {
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return 0, err
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}
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return lpctstr(unsafe.Pointer(result)), nil
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}
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// ShellExecuteNoWait is version of ShellExecuteEx which don't want process
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func ShellExecuteNowait(hwnd hwnd, lpOperation, lpFile, lpParameters, lpDirectory string, nShowCmd int) error {
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var lpctstrVerb, lpctstrParameters, lpctstrDirectory, lpctstrFile lpctstr
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var err error
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if len(lpOperation) != 0 {
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lpctstrVerb, err = toUTF16(lpOperation)
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if err != nil {
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return err
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}
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}
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if len(lpParameters) != 0 {
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lpctstrParameters, err = toUTF16(lpParameters)
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if err != nil {
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return err
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}
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}
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if len(lpDirectory) != 0 {
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lpctstrDirectory, err = toUTF16(lpDirectory)
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if err != nil {
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return err
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}
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}
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if len(lpDirectory) != 0 {
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lpctstrFile, err = toUTF16(lpFile)
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if err != nil {
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return err
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}
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}
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i := &_SHELLEXECUTEINFO{
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fMask: _SEE_MASK_DEFAULT,
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hwnd: hwnd,
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lpVerb: lpctstrVerb,
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lpFile: lpctstrFile,
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lpParameters: lpctstrParameters,
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lpDirectory: lpctstrDirectory,
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nShow: nShowCmd,
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}
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i.cbSize = dword(unsafe.Sizeof(*i))
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return ShellExecuteEx(i)
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}
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// ShellExecuteEx is Windows API
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func ShellExecuteEx(pExecInfo *_SHELLEXECUTEINFO) error {
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ret, _, _ := procShellExecuteEx.Call(uintptr(unsafe.Pointer(pExecInfo)))
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if ret == 1 && pExecInfo.fMask&_SEE_MASK_NOCLOSEPROCESS != 0 {
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s, e := syscall.WaitForSingleObject(pExecInfo.hProcess, syscall.INFINITE)
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switch s {
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case syscall.WAIT_OBJECT_0:
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break
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case syscall.WAIT_FAILED:
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return os.NewSyscallError("WaitForSingleObject", e)
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default:
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return errors.New("Unexpected result from WaitForSingleObject")
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}
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}
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errorMsg := ""
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if pExecInfo.hInstApp != 0 && pExecInfo.hInstApp <= 32 {
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switch int(pExecInfo.hInstApp) {
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case _SE_ERR_FNF:
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errorMsg = "The specified file was not found"
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case _SE_ERR_PNF:
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errorMsg = "The specified path was not found"
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case _ERROR_BAD_FORMAT:
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errorMsg = "The .exe file is invalid (non-Win32 .exe or error in .exe image)"
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case _SE_ERR_ACCESSDENIED:
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errorMsg = "The operating system denied access to the specified file"
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case _SE_ERR_ASSOCINCOMPLETE:
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errorMsg = "The file name association is incomplete or invalid"
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case _SE_ERR_DDEBUSY:
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errorMsg = "The DDE transaction could not be completed because other DDE transactions were being processed"
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case _SE_ERR_DDEFAIL:
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errorMsg = "The DDE transaction failed"
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case _SE_ERR_DDETIMEOUT:
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errorMsg = "The DDE transaction could not be completed because the request timed out"
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case _SE_ERR_DLLNOTFOUND:
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errorMsg = "The specified DLL was not found"
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case _SE_ERR_NOASSOC:
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errorMsg = "There is no application associated with the given file name extension"
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case _SE_ERR_OOM:
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errorMsg = "There was not enough memory to complete the operation"
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case _SE_ERR_SHARE:
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errorMsg = "A sharing violation occurred"
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default:
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errorMsg = fmt.Sprintf("Unknown error occurred with error code %v", pExecInfo.hInstApp)
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}
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} else {
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return nil
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}
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return errors.New(errorMsg)
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}
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@ -5,7 +5,6 @@ package webview2runtime
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import (
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_ "embed"
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"fmt"
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"io"
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"net/http"
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"os"
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@ -76,9 +75,7 @@ func downloadBootstrapper() (string, error) {
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// Returns true if the installer ran successfully.
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// Returns an error if something goes wrong
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func InstallUsingEmbeddedBootstrapper() (bool, error) {
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installer := filepath.Join(os.TempDir(), `MicrosoftEdgeWebview2Setup.exe`)
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err := os.WriteFile(installer, setupexe, 0755)
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installer, err := WriteInstaller(os.TempDir())
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if err != nil {
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return false, err
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}
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@ -112,11 +109,18 @@ func InstallUsingBootstrapper() (bool, error) {
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}
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func runInstaller(installer string) (bool, error) {
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err := ShellExecuteAndWait(0, "runas", installer, "", os.Getenv("TMP"), syscall.SW_NORMAL)
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if err != nil {
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fmt.Println(err)
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// Credit: https://stackoverflow.com/a/10385867
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cmd := exec.Command(installer)
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if err := cmd.Start(); err != nil {
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return false, err
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}
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if err := cmd.Wait(); err != nil {
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if exiterr, ok := err.(*exec.ExitError); ok {
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if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {
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return status.ExitStatus() == 0, nil
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}
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}
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}
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return true, nil
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}
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@ -166,3 +170,9 @@ func OpenInstallerDownloadWebpage() error {
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cmd := exec.Command("rundll32", "url.dll,FileProtocolHandler", "https://developer.microsoft.com/en-us/microsoft-edge/webview2/")
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return cmd.Run()
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}
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// WriteInstaller writes the installer exe file to the given path
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func WriteInstaller(targetPath string) (string, error) {
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installer := filepath.Join(targetPath, `MicrosoftEdgeWebview2Setup.exe`)
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return installer, os.WriteFile(installer, setupexe, 0755)
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}
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