From 26b7971ba6ccfcf243a9b3a6606e94a758d32375 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Fri, 28 Jun 2019 12:06:58 +0200
Subject: [PATCH] UI: macOS: Show useful error message on .conf import

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 WireGuard/WireGuard/UI/TunnelImporter.swift | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/WireGuard/WireGuard/UI/TunnelImporter.swift b/WireGuard/WireGuard/UI/TunnelImporter.swift
index cf05ff9..46f2c92 100644
--- a/WireGuard/WireGuard/UI/TunnelImporter.swift
+++ b/WireGuard/WireGuard/UI/TunnelImporter.swift
@@ -44,10 +44,20 @@ class TunnelImporter {
                         }
                         return
                     }
-                    let tunnelConfiguration = try? TunnelConfiguration(fromWgQuickConfig: fileContents, called: fileBaseName)
+                    var parseError: Error?
+                    var tunnelConfiguration: TunnelConfiguration?
+                    do {
+                        tunnelConfiguration = try TunnelConfiguration(fromWgQuickConfig: fileContents, called: fileBaseName)
+                    } catch let error {
+                        parseError = error
+                    }
                     DispatchQueue.main.async {
-                        if tunnelConfiguration == nil {
-                            lastFileImportErrorText = (title: tr("alertBadConfigImportTitle"), message: tr(format: "alertBadConfigImportMessage (%@)", fileName))
+                        if parseError != nil {
+                            if let parseError = parseError as? WireGuardAppError {
+                                lastFileImportErrorText = parseError.alertText
+                            } else {
+                                lastFileImportErrorText = (title: tr("alertBadConfigImportTitle"), message: tr(format: "alertBadConfigImportMessage (%@)", fileName))
+                            }
                         }
                         configs.append(tunnelConfiguration)
                         dispatchGroup.leave()