minor fixes

Author: IxiAngel

Spixi/MiniApps/MiniApp.cs

@@ -86,7 +86,10 @@ public MiniApp(string[] app_info, string? app_url = null)
                         break;
 
                     case "url":
-                        url = value;
+                        if (IxiUtils.IsValidUrl(value))
+                        {
+                            url = value;
+                        }
                         break;
 
                     case "contentUrl":

Spixi/MiniApps/MiniAppManager.cs

@@ -133,7 +133,7 @@ public void stop()
         public string installFromUrl(MiniApp fetchedAppInfo)
         {
             // Check for contentUrl first
-            if (string.IsNullOrWhiteSpace(fetchedAppInfo.contentUrl) || !Uri.TryCreate(fetchedAppInfo.contentUrl, UriKind.Absolute, out Uri uri) || uri.Scheme != Uri.UriSchemeHttps)
+            if (string.IsNullOrWhiteSpace(fetchedAppInfo.contentUrl) || !IxiUtils.IsValidUrl(fetchedAppInfo.contentUrl))
             {
                 Logging.error("Invalid or insecure app content URL: " + fetchedAppInfo.contentUrl);
                 return null;
@@ -169,7 +169,7 @@ public string installFromUrl(MiniApp fetchedAppInfo)
                 }
             }
 
-            app_name = installFromPath(source_app_file_path, fetchedAppInfo.contentUrl);
+            app_name = installFromPath(source_app_file_path, fetchedAppInfo.url);
             if (File.Exists(source_app_file_path))
             {
                 File.Delete(source_app_file_path);
@@ -283,7 +283,10 @@ public string installFromPath(string source_path, string? url = null)
 
                     app.contentSize = new FileInfo(source_path).Length;
                     app.checksum = Crypto.sha256OfFile(source_path);
-                    app.url = url;
+                    if (url != null)
+                    {
+                        app.url = url;
+                    }
                     app_name = app.name;
 
                     // TODO sig check

Spixi/Pages/Home/HomePage.xaml.cs

@@ -853,7 +853,7 @@ public void loadChats()
                         else if (msgs == null
                                  || msgs.Count == 0)
                         {
-                            friend.metaData.setLastMessage(null, 0);
+                            lastmsg.sent = true;
                             friend.metaData.unreadMessageCount = 0;
                             friend.saveMetaData();
                             continue;