File indexing completed on 2024-05-12 05:09:28

 /***************************************************************************
     Copyright (C) 2007-2009 Robby Stephenson <robby@periapsis.org>
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   This program 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 2 of        *
  *   the License or (at your option) version 3 or any later version        *
  *   accepted by the membership of KDE e.V. (or its successor approved     *
  *   by the membership of KDE e.V.), which shall act as a proxy            *
  *   defined in Section 14 of version 3 of the license.                    *
  *                                                                         *
  *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>. *
  *                                                                         *
  ***************************************************************************/
 
 #include "bibsonomyfetcher.h"
 #include "../translators/bibteximporter.h"
 #include "../utils/guiproxy.h"
 #include "../utils/string_utils.h"
 #include "../collection.h"
 #include "../entry.h"
 #include "../core/netaccess.h"
 #include "../core/filehandler.h"
 #include "../tellico_debug.h"
 
 #include <KLocalizedString>
 #include <KIO/Job>
 #include <KIO/JobUiDelegate>
 #include <KJobWidgets/KJobWidgets>
 
 #include <QLabel>
 #include <QVBoxLayout>
 #include <QUrlQuery>
 
 namespace {
   // always bibtex
   static const char* BIBSONOMY_BASE_URL = "http://bibsonomy.org/";
   static const int BIBSONOMY_MAX_RESULTS = 20;
 }
 
 using namespace Tellico;
 using Tellico::Fetch::BibsonomyFetcher;
 
 BibsonomyFetcher::BibsonomyFetcher(QObject* parent_)
     : Fetcher(parent_), m_job(nullptr), m_started(false) {
 }
 
 BibsonomyFetcher::~BibsonomyFetcher() {
 }
 
 QString BibsonomyFetcher::source() const {
   return m_name.isEmpty() ? defaultName() : m_name;
 }
 
 bool BibsonomyFetcher::canSearch(Fetch::FetchKey k) const {
   return k == Person || k == Keyword;
 }
 
 bool BibsonomyFetcher::canFetch(int type) const {
   return type == Data::Collection::Bibtex;
 }
 
 void BibsonomyFetcher::readConfigHook(const KConfigGroup&) {
 }
 
 void BibsonomyFetcher::search() {
   m_started = true;
 
 //  myDebug() << "value = " << value_;
 
   QUrl u(QString::fromLatin1(BIBSONOMY_BASE_URL));
   u.setPath(QStringLiteral("/bib/"));
 
   switch(request().key()) {
     case Person:
       u.setPath(u.path() + QStringLiteral("author/%1").arg(request().value()));
       break;
 
     case Keyword:
       u.setPath(u.path() + QStringLiteral("search/%1").arg(request().value()));
       break;
 
     default:
       myWarning() << source() << "- key not recognized:" << request().key();
       stop();
       return;
   }
   QUrlQuery q;
   q.addQueryItem(QStringLiteral("items"), QString::number(BIBSONOMY_MAX_RESULTS));
   u.setQuery(q);
 
   m_job = KIO::storedGet(u, KIO::NoReload, KIO::HideProgressInfo);
   KJobWidgets::setWindow(m_job, GUI::Proxy::widget());
   connect(m_job.data(), &KJob::result,
           this, &BibsonomyFetcher::slotComplete);
 }
 
 void BibsonomyFetcher::stop() {
   if(!m_started) {
     return;
   }
 //  myDebug();
   if(m_job) {
     m_job->kill();
     m_job = nullptr;
   }
   m_started = false;
   emit signalDone(this);
 }
 
 void BibsonomyFetcher::slotComplete(KJob*) {
 //  myDebug();
 
   if(m_job->error()) {
     m_job->uiDelegate()->showErrorMessage();
     stop();
     return;
   }
 
   QByteArray data = m_job->data();
   if(data.isEmpty()) {
     myDebug() << "no data";
     stop();
     return;
   }
 
   // since the fetch is done, don't worry about holding the job pointer
   m_job = nullptr;
 
   Import::BibtexImporter imp(QString::fromUtf8(data.constData(), data.size()));
   Data::CollPtr coll = imp.collection();
 
   if(!coll) {
     myDebug() << "no valid result";
     stop();
     return;
   }
 
   Data::EntryList entries = coll->entries();
   foreach(Data::EntryPtr entry, entries) {
     if(!m_started) {
       // might get aborted
       break;
     }
 
     FetchResult* r = new FetchResult(this, entry);
     m_entries.insert(r->uid, Data::EntryPtr(entry));
     emit signalResultFound(r);
   }
 
   stop(); // required
 }
 
 Tellico::Data::EntryPtr BibsonomyFetcher::fetchEntryHook(uint uid_) {
   return m_entries[uid_];
 }
 
 Tellico::Fetch::FetchRequest BibsonomyFetcher::updateRequest(Data::EntryPtr entry_) {
   QString title = entry_->field(QStringLiteral("title"));
   if(!title.isEmpty()) {
     return FetchRequest(Fetch::Keyword, title);
   }
   return FetchRequest();
 }
 
 Tellico::Fetch::ConfigWidget* BibsonomyFetcher::configWidget(QWidget* parent_) const {
   return new BibsonomyFetcher::ConfigWidget(parent_, this);
 }
 
 QString BibsonomyFetcher::defaultName() {
   return QStringLiteral("Bibsonomy");
 }
 
 QString BibsonomyFetcher::defaultIcon() {
   return favIcon("https://www.bibsonomy.org");
 }
 
 BibsonomyFetcher::ConfigWidget::ConfigWidget(QWidget* parent_, const BibsonomyFetcher*)
     : Fetch::ConfigWidget(parent_) {
   QVBoxLayout* l = new QVBoxLayout(optionsWidget());
   l->addWidget(new QLabel(i18n("This source has no options."), optionsWidget()));
   l->addStretch();
 }
 
 void BibsonomyFetcher::ConfigWidget::saveConfigHook(KConfigGroup&) {
 }
 
 QString BibsonomyFetcher::ConfigWidget::preferredName() const {
   return BibsonomyFetcher::defaultName();
 }