void UltimateLyricsProvider::FetchInfo(INFO::InfoRequestData request)
{
    //Debug::debug() << name() << " fetch info ";

    const QTextCodec* codec = QTextCodec::codecForName(charset_.toAscii().constData());
    if (!codec) {
      qWarning() << "Invalid codec" << charset_;
      emit Finished(request);
      return;
    }

    //! Fill in fields in the URL
    //Debug::debug() << " ---- UltimateLyricsProvider::base url " << url_;

    lyrics_url_ = url_;
    ReplaceFields(request, &lyrics_url_);

    //Debug::debug() << " ---- UltimateLyricsProvider::complete url " << lyrics_url_;
    QUrl url(lyrics_url_);

    QObject *reply = HTTP()->get( url );
    m_requests[reply] = request;

    connect(reply, SIGNAL(data(QByteArray)), this, SLOT(LyricsFetched(QByteArray)));
    connect(reply, SIGNAL(error(QNetworkReply*)), this, SLOT(signalFinish()));
}
void UltimateLyricsProvider::FetchInfo(int id, const Song& metadata) {
  // Get the text codec
  const QTextCodec* codec = QTextCodec::codecForName(charset_.toAscii().constData());
  if (!codec) {
    qLog(Warning) << "Invalid codec" << charset_;
    emit Finished(id);
    return;
  }

  // Fill in fields in the URL
  QString url_text(url_);
  ReplaceFields(metadata, &url_text);

  QUrl url(url_text);
  qLog(Debug) << "Fetching lyrics from" << url;

  // Fetch the URL, follow redirects
  metadata_ = metadata;
  redirect_count_ = 0;
  QNetworkReply* reply = network_->get(QNetworkRequest(url));
  requests_[reply] = id;
  connect(reply, SIGNAL(finished()), SLOT(LyricsFetched()));
}
void UltimateLyricsProvider::LyricsFetched() {
  QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
  if (!reply) {
    url_hop_ = false;
    return;
  }

  int id = requests_.take(reply);
  reply->deleteLater();

  if (reply->error() != QNetworkReply::NoError) {
    url_hop_ = false;
    emit Finished(id);
    return;
  }

  // Handle redirects
  QVariant redirect_target = reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
  if (redirect_target.isValid()) {
    if (redirect_count_ >= kRedirectLimit) {
      url_hop_ = false;
      emit Finished(id);
      return;
    }

    QUrl target = redirect_target.toUrl();
    if (target.scheme().isEmpty() || target.host().isEmpty()) {
      QString path = target.path();
      target = reply->url();
      target.setPath(path);
    }

    redirect_count_ ++;
    QNetworkReply* reply = network_->get(QNetworkRequest(target));
    requests_[reply] = id;
    connect(reply, SIGNAL(finished()), SLOT(LyricsFetched()));
    return;
  }

  const QTextCodec* codec = QTextCodec::codecForName(charset_.toAscii().constData());
  const QString original_content = codec->toUnicode(reply->readAll());
  QString lyrics;

  // Check for invalid indicators
  foreach (const QString& indicator, invalid_indicators_) {
    if (original_content.contains(indicator)) {
      qLog(Debug) << "Found invalid indicator" << indicator;
      url_hop_ = false;
      emit Finished(id);
      return;
    }
  }

  if (!url_hop_) {
    // Apply extract rules
    foreach (const Rule& rule, extract_rules_) {
      // Modify the rule for this request's metadata
      Rule rule_copy(rule);
      for (Rule::iterator it = rule_copy.begin() ; it != rule_copy.end() ; ++it) {
        ReplaceFields(metadata_, &it->first);
      }

      QString content = original_content;
      if (ApplyExtractRule(rule_copy, &content)) {
        url_hop_ = true;
        QUrl url(content);
        qLog(Debug) << "Next url hop: " << url;
        QNetworkReply* reply = network_->get(QNetworkRequest(url));
        requests_[reply] = id;
        connect(reply, SIGNAL(finished()), SLOT(LyricsFetched()));
        return;
      }

      // Apply exclude rules
      foreach (const Rule& rule, exclude_rules_) {
        ApplyExcludeRule(rule, &lyrics);
      }