view libgui/src/news-reader.cc @ 30564:796f54d4ddbf stable

update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 0a5b15007766
children ad014fc78bd6 c6d54dd31a7e
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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2011-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Octave is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

#include <string>

#include <QDateTime>
#include <QString>

#include "news-reader.h"
#include "octave-qobject.h"
#include "gui-preferences-nr.h"

#include "url-transfer.h"
#include "version.h"

namespace octave
{
  void news_reader::process (void)
  {
    QString html_text;

    if (m_connect_to_web)
      {
        // Run this part in a separate thread so Octave can continue to
        // run while we wait for the page to load.  Then emit the signal
        // to display it when we have the page contents.

        QString url = m_base_url + '/' + m_page;
        std::ostringstream buf;
        url_transfer octave_dot_org (url.toStdString (), buf);

        if (octave_dot_org.is_valid ())
          {
            Array<std::string> param;
            octave_dot_org.http_get (param);

            if (octave_dot_org.good ())
              html_text = QString::fromStdString (buf.str ());
          }

        if (html_text.contains ("this-is-the-gnu-octave-community-news-page"))
          {
            if (m_serial >= 0)
              {
                resource_manager& rmgr = m_octave_qobj.get_resource_manager ();
                gui_settings *settings = rmgr.get_settings ();

                if (settings)
                  {
                    settings->setValue (nr_last_time.key,
                                        QDateTime::currentDateTime ());

                    settings->sync ();
                  }

                QString tag ("community-news-page-serial=");

                int b = html_text.indexOf (tag);

                if (b)
                  {
                    b += tag.length ();

                    int e = html_text.indexOf ("\n", b);

                    QString tmp = html_text.mid (b, e-b);

                    int curr_page_serial = tmp.toInt ();

                    if (curr_page_serial > m_serial)
                      {
                        if (settings)
                          {
                            settings->setValue (nr_last_news.key,
                                                curr_page_serial);

                            settings->sync ();
                          }
                      }
                    else
                      return;
                  }
                else
                  return;
              }
          }
        else
          html_text = QString
            (tr ("<html>\n"
                 "<body>\n"
                 "<p>\n"
                 "Octave's community news source seems to be unavailable.\n"
                 "</p>\n"
                 "<p>\n"
                 "For the latest news, please check\n"
                 "<a href=\"https://octave.org/community-news.html\">https://octave.org/community-news.html</a>\n"
                 "when you have a connection to the web (link opens in an external browser).\n"
                 "</p>\n"
                 "<p>\n"
                 "<small><em>&mdash; The Octave Developers, ") + OCTAVE_RELEASE_DATE + "</em></small>\n"
             "</p>\n"
             "</body>\n"
             "</html>\n");
      }
    else
      html_text = QString
        (tr ("<html>\n"
             "<body>\n"
             "<p>\n"
             "Connecting to the web to display the latest Octave Community news has been disabled.\n"
             "</p>\n"
             "<p>\n"
             "For the latest news, please check\n"
             "<a href=\"https://octave.org/community-news.html\">https://octave.org/community-news.html</a>\n"
             "when you have a connection to the web (link opens in an external browser)\n"
             "or enable web connections for news in Octave's network settings dialog.\n"
             "</p>\n"
             "<p>\n"
             "<small><em>&mdash; The Octave Developers, ") + OCTAVE_RELEASE_DATE + "</em></small>\n"
         "</p>\n"
         "</body>\n"
         "</html>\n");

    emit display_news_signal (html_text);

    emit finished ();
  }
}