Add setting for lyric providers and add more providers

Fixes #335

src/internet/localredirectserver.cpp

@@ -49,9 +49,10 @@
 #include <QSslSocket>
 #include <QDateTime>
 
-LocalRedirectServer::LocalRedirectServer(const bool https, QObject *parent)
+LocalRedirectServer::LocalRedirectServer(QObject *parent)
     : QTcpServer(parent),
-      https_(https),
+      https_(false),
+      port_(0),
       socket_(nullptr)
       {}
 
@@ -232,7 +233,7 @@ bool LocalRedirectServer::Listen() {
   if (https_) {
     if (!GenerateCertificate()) return false;
   }
-  if (!listen(QHostAddress::LocalHost)) {
+  if (!listen(QHostAddress::LocalHost, port_)) {
     error_ = errorString();
     return false;
   }

src/internet/localredirectserver.h

@@ -38,9 +38,11 @@ class LocalRedirectServer : public QTcpServer {
   Q_OBJECT
 
  public:
-  explicit LocalRedirectServer(const bool https, QObject* parent = nullptr);
+  explicit LocalRedirectServer(QObject *parent = nullptr);
   ~LocalRedirectServer();
 
+  void set_https(const bool https) { https_ = https; }
+  void set_port(const int port) { port_ = port; }
   bool Listen();
   const QUrl &url() const { return url_; }
   const QUrl &request_url() const { return request_url_; }
@@ -65,6 +67,7 @@ class LocalRedirectServer : public QTcpServer {
 
  private:
   bool https_;
+  int port_;
   QUrl url_;
   QUrl request_url_;
   QSslCertificate ssl_certificate_;