Add authentication dialog

Introduce start_auth_flow, a function invoked by typing `/auth username`
in OOC. It sends an public-key authentication request to the server,
starting the entire flow.

The flow invoves two dialogs: to select the key, and to enter the
passphrase to unlock the key. For convenience, each successful unlock
also remembers the key for that username on the server, storing this
in `saved_auth.json` (I chose JSON because I wanted it to stay
human-editable; INI would be better, but it suffers from bad platform
quirks in Qt).

1 files changed, 13 insertions, 0 deletions

diff --git a/src/courtroom.cpp b/src/courtroom.cpp
index 1eaa747..a2dca24 100644
--- a/src/courtroom.cpp
+++ b/src/courtroom.cpp
@@ -5118,6 +5118,19 @@ void Courtroom::on_ooc_return_pressed()
     ui_ooc_chat_message->clear();
     return;
   }
+  // Only works on CSDWASASH.
+  else if (ooc_message.startsWith("/auth"))
+  {
+    QStringList command = ooc_message.split(" ", Qt::SkipEmptyParts);
+    if (command.size() != 2)
+    {
+      append_server_chatmessage("CLIENT", "Usage: /auth <username>", "1");
+      return;
+    }
+    start_auth_flow(ao_app, command[1]);
+    ui_ooc_chat_message->clear();
+    return;
+  }
 
   QStringList packet_contents;
   packet_contents.append(ui_ooc_chat_name->text());