feat(ui): 导出/备份 — otpauth URI 列表 + 加密备份导出/恢复

- qr/export.go: EntryToOtpAuth + OtpAuth.URI，将 config.Entry 反向转换为标准 otpauth:// URI（Battle.Net/Steam 标记为 partial） - dialog_export.go: Tab 切换对话框，otpauth URI 列表可复制 + 加密备份文件导出（独立密码，0o600 权限） - dialog_restore_backup.go: 从 .winauth.bak 恢复，密码验证后合并 - settings_menu: 新增 Export / Restore Backup 菜单项 - i18n: en/zh-CN/de 三语翻译
2026-06-12 10:44:51 +08:00
parent 133091a32e
commit fd4d756823
8 changed files with 722 additions and 0 deletions
@@ -0,0 +1,94 @@
+package ui
+
+import (
+	"errors"
+	"fmt"
+
+	"gioui.org/layout"
+	"gioui.org/widget"
+	"gioui.org/widget/material"
+
+	"git.wxccs.org/iceking2nd/winauth-go/internal/config"
+	"git.wxccs.org/iceking2nd/winauth-go/internal/global"
+	"git.wxccs.org/iceking2nd/winauth-go/internal/i18n"
+)
+
+// restoreBackupDialog loads an encrypted .winauth.bak file produced by the
+// export dialog. The user supplies the path and the backup's password; on
+// success the loaded entries are handed back to the caller for merging.
+type restoreBackupDialog struct {
+	pathEd   widget.Editor
+	pwEd     widget.Editor
+	restoreB widget.Clickable
+	cancelB  widget.Clickable
+
+	errorMsg string
+}
+
+func newRestoreBackupDialog() *restoreBackupDialog {
+	d := &restoreBackupDialog{}
+	d.pathEd.SingleLine = true
+	d.pwEd.SingleLine = true
+	d.pwEd.Mask = '*'
+	return d
+}
+
+// restoreBackupResult carries the outcome of the dialog.
+type restoreBackupResult struct {
+	cfg    *config.Config
+	cancel bool
+}
+
+func (d *restoreBackupDialog) Layout(
+	gtx layout.Context, th *material.Theme,
+	onDone func(restoreBackupResult),
+) layout.Dimensions {
+	if d.cancelB.Clicked(gtx) {
+		d.wipe()
+		onDone(restoreBackupResult{cancel: true})
+		return layout.Dimensions{Size: gtx.Constraints.Max}
+	}
+	if d.restoreB.Clicked(gtx) {
+		path := d.pathEd.Text()
+		if path == "" {
+			d.errorMsg = i18n.T("msg_empty_backup_path")
+		} else {
+			pw := []byte(d.pwEd.Text())
+			cfg, err := config.LoadYAML(path, pw)
+			for i := range pw {
+				pw[i] = 0
+			}
+			switch {
+			case errors.Is(err, config.ErrPasswordRequired):
+				d.errorMsg = i18n.T("msg_password_required")
+			case errors.Is(err, config.ErrPasswordWrong):
+				d.errorMsg = i18n.T("msg_password_wrong")
+			case err != nil:
+				d.errorMsg = fmt.Sprintf(i18n.T("msg_restore_failed"), err.Error())
+				global.Log.WithField("func", "internal.ui.restoreBackupDialog.Layout").
+					WithError(err).Warn("restore backup failed")
+			default:
+				d.wipe()
+				onDone(restoreBackupResult{cfg: cfg})
+				return layout.Dimensions{Size: gtx.Constraints.Max}
+			}
+		}
+	}
+
+	body := func(gtx layout.Context) layout.Dimensions {
+		return layout.Flex{Axis: layout.Vertical}.Layout(gtx,
+			layout.Rigid(material.Body2(th, i18n.T("restore_backup_intro")).Layout),
+			layout.Rigid(layout.Spacer{Height: 8}.Layout),
+			layout.Rigid(labeledEditor(th, i18n.T("label_backup_path"), &d.pathEd, "backup.winauth.bak")),
+			layout.Rigid(labeledEditor(th, i18n.T("label_password"), &d.pwEd, "")),
+			layout.Rigid(errorLabel(th, d.errorMsg)),
+		)
+	}
+	return modalCard(gtx, th, i18n.T("dialog_restore_backup_title"),
+		i18n.T("btn_restore"), i18n.T("btn_cancel"),
+		&d.restoreB, &d.cancelB, body)
+}
+
+func (d *restoreBackupDialog) wipe() {
+	d.pwEd.SetText("")
+}