Don't crash when running with --headless

src/TomahawkApp.cpp

@@ -199,6 +199,8 @@ TomahawkApp::init()
     TomahawkUtils::setHeaderHeight( fm.height() + 8 );
 #endif
     
+    TomahawkUtils::setHeadless( m_headless );
+
     TomahawkSettings* s = TomahawkSettings::instance();
 
     tDebug( LOGINFO ) << "Setting NAM.";

src/libtomahawk/AclRegistry.cpp

@@ -170,7 +170,7 @@ ACLRegistry::isAuthorizedUser( const QString& dbid, const QString &username, ACL
 #ifdef ENABLE_HEADLESS
     user.acl = ACLRegistry::Stream;
 #else
-    else
+    if ( !TomahawkUtils::headless() )
     {
         getUserDecision( user, username );
         return ACLRegistry::NotFound;

src/libtomahawk/utils/TomahawkUtils.cpp

@@ -64,7 +64,7 @@ namespace TomahawkUtils
 {
 static quint64 s_infosystemRequestId = 0;
 static QMutex s_infosystemRequestIdMutex;
-
+static bool s_headless = false;
 
 #ifdef Q_WS_MAC
 QString
@@ -76,6 +76,20 @@ appSupportFolderPath()
 #endif // Q_WS_MAC
 
 
+bool
+headless()
+{
+    return s_headless;
+}
+
+
+void
+setHeadless( bool headless )
+{
+    s_headless = headless;
+}
+
+
 QString
 appFriendlyVersion()
 {

src/libtomahawk/utils/TomahawkUtils.h

@@ -87,6 +87,8 @@ namespace TomahawkUtils
         QNetworkProxy m_proxy;
     };
 
+    DLLEXPORT bool headless();
+    DLLEXPORT void setHeadless( bool headless );
 
     DLLEXPORT QString appFriendlyVersion();