Support Secure WebSocket

Add full WSS support to public server list (using wss_port, overriding
insecure port), favorite servers list, and direct connections, and show
which servers are secure.

Revert the upstream's removal of `legacy` ServerInfo field, as I use it
to filter out legacy servers. To differentiate schemes, the `scheme`
field is used, either "ws" or "wss". I don't see the reason to add "tcp"
protocol when we don't even support it.

For the UI, add icons for secure and insecure connections. Highlight
secure servers with a green background.

In the favorite server dialog, a checkbox was added to select whether
the server is using WSS.

In the direct connection dialog, support "wss" scheme and default ports:
80 for WS, 443 for WSS, as per the WebSocket specification.

1 files changed, 7 insertions, 11 deletions

diff --git a/src/options.cpp b/src/options.cpp
index d25eea09..3d400c25 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -678,14 +678,7 @@ QVector<ServerInfo> Options::favorites()
     f_server.port = favorite.value("port", 27016).toInt();
     f_server.name = favorite.value("name", "Missing Name").toString();
     f_server.description = favorite.value("desc", "No description").toString();
-    if (favorite.contains("protocol"))
-    {
-      f_server.protocol = favorite.value("protocol").toString();
-    }
-    else
-    {
-      f_server.protocol = "tcp";
-    }
+    f_server.scheme = favorite.value("scheme", "ws").toString();
 
     serverlist.append(std::move(f_server));
     favorite.endGroup();
@@ -705,7 +698,8 @@ void Options::setFavorites(QVector<ServerInfo> value)
     favorite.setValue("address", fav_server.address);
     favorite.setValue("port", fav_server.port);
     favorite.setValue("desc", fav_server.description);
-    favorite.setValue("protocol", fav_server.protocol);
+    favorite.setValue("legacy", fav_server.legacy);
+    favorite.setValue("scheme", fav_server.scheme);
     favorite.endGroup();
   }
   favorite.sync();
@@ -726,7 +720,8 @@ void Options::addFavorite(ServerInfo server)
   favorite.setValue("address", server.address);
   favorite.setValue("port", server.port);
   favorite.setValue("desc", server.description);
-  favorite.setValue("protocol", server.protocol);
+  favorite.setValue("legacy", server.legacy);
+  favorite.setValue("scheme", server.scheme);
   favorite.endGroup();
   favorite.sync();
 }
@@ -738,7 +733,8 @@ void Options::updateFavorite(ServerInfo server, int index)
   favorite.setValue("address", server.address);
   favorite.setValue("port", server.port);
   favorite.setValue("desc", server.description);
-  favorite.setValue("protocol", server.protocol);
+  favorite.setValue("legacy", server.legacy);
+  favorite.setValue("scheme", server.scheme);
   favorite.endGroup();
   favorite.sync();
 }