sites.cpp

/*
    SPDX-FileCopyrightText: 2004 Richard Lärkäng <nouseforaname@home.se>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#include "sites.h"
 
#include <KIO/TransferJob>
#include <QDebug>
#include <QRegularExpression>
#include <QTextStream>
#include <QUrl>
#include <QUrlQuery>
 
namespace KCDDB
{
  Sites::Sites()
  {
 
  }
 
    QList<Mirror>
  Sites::siteList()
  {
    QUrl url;
    url.setScheme( QLatin1String( "http" ) );
    url.setHost( QLatin1String( "gnudb.gnudb.org" ) );
    url.setPort( 80 );
    url.setPath( QLatin1String( "/~cddb/cddb.cgi" ) );
 
    QString hello = QString::fromLatin1("%1 %2 %3 %4")
        .arg(QLatin1String( "libkcddb-user" ), QLatin1String( "localHost" ), CDDB::clientName(), CDDB::clientVersion());
 
    QUrlQuery query;
    query.addQueryItem( QLatin1String( "cmd" ), QLatin1String( "sites" ) );
    query.addQueryItem( QLatin1String( "hello" ), hello );
    query.addQueryItem( QLatin1String( "proto" ), QLatin1String( "5" ) );
    url.setQuery( query );
 
    QList<Mirror> result;
 
    KIO::TransferJob* job = KIO::get( url, KIO::NoReload, KIO::HideProgressInfo );
    QByteArray data;
    QObject::connect( job, &KIO::TransferJob::data, [&data](KIO::Job *, const QByteArray &d){ data += d; } );
    if( job->exec() )
    {
      result = readData( data );
    }
 
    return result;
  }
 
    QList<Mirror>
  Sites::readData(const QByteArray& data)
  {
    QList<Mirror> result;
 
    QTextStream ts(data);
 
    if (CDDB::statusCode(ts.readLine()) != 210)
      return result;
 
    while (!ts.atEnd())
    {
      QString line = ts.readLine();
      if (line == QLatin1String( "." ))
        break;
      result << parseLine(line);
    }
 
    return result;
  }
 
    Mirror
  Sites::parseLine(const QString& line)
  {
    Mirror m;
 
    const QRegularExpression rexp(QLatin1String( "([^ ]+) (cddbp|http) (\\d+) ([^ ]+) [N|S]\\d{3}.\\d{2} [E|W]\\d{3}.\\d{2} (.*)" ));
 
    if (const auto match = rexp.match(line); match.hasMatch())
    {
      m.address = match.captured(1);
 
      if (match.capturedView(2) == QLatin1String( "cddbp" ))
        m.transport = Lookup::CDDBP;
      else
        m.transport = Lookup::HTTP;
 
      m.port = match.capturedView(3).toUInt();
 
      if (m.transport == Lookup::HTTP && match.capturedView(4) != QLatin1String( "/~cddb/cddb.cgi" ))
        qWarning() << "Non default urls are not supported for http";
 
      m.description = match.captured(5);
    }
 
    return m;
  }
}