forked from Silverfish/proton-bridge
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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//go:build windows
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// +build windows
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package sentry
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import (
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"syscall"
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"unsafe"
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)
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const (
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defaultLocaleUser = "GetUserDefaultLocaleName" // https://learn.microsoft.com/en-us/windows/win32/api/winnls/nf-winnls-getuserdefaultlocalename
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defaultLocaleSystem = "GetSystemDefaultLocaleName" // https://learn.microsoft.com/en-us/windows/win32/api/winnls/nf-winnls-getsystemdefaultlocalename
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localeNameMaxLength = 85 // https://learn.microsoft.com/en-us/windows/win32/intl/locale-name-constants
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)
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func getLocale(dll *syscall.DLL, procName string) (string, error) {
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proc, err := dll.FindProc(procName)
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if err != nil {
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return "errProc", err
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}
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b := make([]uint16, localeNameMaxLength)
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r, _, err := proc.Call(uintptr(unsafe.Pointer(&b[0])), uintptr(localeNameMaxLength))
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if r == 0 || err != nil {
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return "errCall", err
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}
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return syscall.UTF16ToString(b), nil
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}
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func GetSystemLang() string {
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dll, err := syscall.LoadDLL("kernel32")
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if err != nil {
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return "errDll"
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}
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defer func() {
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_ = dll.Release()
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}()
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if lang, err := getLocale(dll, defaultLocaleUser); err == nil {
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return lang
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}
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lang, _ := getLocale(dll, defaultLocaleSystem)
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return lang
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}
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