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, 1 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index e998eed..0bc4e80 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -104,6 +104,7 @@ int main(int argc, char *argv[])
     return EXIT_FAILURE;
   }
   main_app.keyring_model.load_keys();
+  main_app.saved_auth.load();
 
   main_app.construct_lobby();
   main_app.net_manager->get_server_list();