- fix lastfm crash if internet is not present

src/lastfm.hpp

@@ -44,6 +44,7 @@ public:
         parameters["api_sig"] = getApiSignature(parameters);
         std::string postBody = utils::getURLEncodedPostBody(parameters);
         std::string response = utils::httpRequest(api_base, "POST", postBody);
+        try {
             auto j = nlohmann::json::parse(response);
             if (j.contains("error"))
                 return j["error"].get<LASTFM_STATUS>();
@@ -51,6 +52,9 @@ public:
             session_token = j["session"]["key"].get<std::string>();
             authenticated = true;
             return LASTFM_STATUS::SUCCESS;
+        } catch (...) {
+            return LASTFM_STATUS::UNKNOWN_ERROR;
+        }
     }
 
     LASTFM_STATUS scrobble(std::string artist, std::string track) {

src/main.cpp

@@ -50,7 +50,7 @@ void initLastFM(bool checkMode = false) {
     lastfm = new LastFM(settings.lastfm.username, settings.lastfm.password, settings.lastfm.api_key,
                         settings.lastfm.api_secret);
     LastFM::LASTFM_STATUS status = lastfm->authenticate();
-    if (status)
+    if (status && checkMode)
         wxMessageBox(_("Error authenticating at LastFM!"), _("PlayerLink"), wxOK | wxICON_ERROR);
     else if (checkMode)
         wxMessageBox(_("The LastFM authentication was successful."), _("PlayerLink"), wxOK | wxICON_INFORMATION);