File indexing completed on 2023-09-24 04:08:37

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1999 Torben Weis <weis@kde.org>
     SPDX-FileCopyrightText: 2003 Waldo Bastian <bastian@kde.org>
     SPDX-FileCopyrightText: 2012 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #include "kprotocolinfo_p.h"
 #include "kprotocolinfofactory_p.h"
 
 #include <KPluginMetaData>
 
 #include <QCoreApplication>
 #include <QDirIterator>
 #include <QStandardPaths>
 
 #include "kiocoredebug.h"
 
 Q_GLOBAL_STATIC(KProtocolInfoFactory, kProtocolInfoFactoryInstance)
 
 KProtocolInfoFactory *KProtocolInfoFactory::self()
 {
     return kProtocolInfoFactoryInstance();
 }
 
 KProtocolInfoFactory::KProtocolInfoFactory()
     : m_cacheDirty(true)
 {
 }
 
 KProtocolInfoFactory::~KProtocolInfoFactory()
 {
     QMutexLocker locker(&m_mutex);
     qDeleteAll(m_cache);
     m_cache.clear();
     m_cacheDirty = true;
 }
 
 QStringList KProtocolInfoFactory::protocols()
 {
     QMutexLocker locker(&m_mutex);
 
     // fill cache, if not already done and use it
     fillCache();
     return m_cache.keys();
 }
 
 QList<KProtocolInfoPrivate *> KProtocolInfoFactory::allProtocols()
 {
     QMutexLocker locker(&m_mutex);
 
     // fill cache, if not already done and use it
     fillCache();
     return m_cache.values();
 }
 
 KProtocolInfoPrivate *KProtocolInfoFactory::findProtocol(const QString &protocol)
 {
     Q_ASSERT(!protocol.isEmpty());
     Q_ASSERT(!protocol.contains(QLatin1Char(':')));
 
     QMutexLocker locker(&m_mutex);
 
     const bool filled = fillCache();
 
     KProtocolInfoPrivate *info = m_cache.value(protocol);
     if (!info && !filled) {
         // Unknown protocol! Maybe it just got installed and our cache is out of date?
         qCDebug(KIO_CORE) << "Refilling KProtocolInfoFactory cache in the hope to find" << protocol;
         m_cacheDirty = true;
         fillCache();
         info = m_cache.value(protocol);
     }
     return info;
 }
 
 bool KProtocolInfoFactory::fillCache()
 {
     // mutex MUST be locked from the outside!
     Q_ASSERT(!m_mutex.tryLock());
 
     // no work if filled
     if (!m_cacheDirty) {
         return false;
     }
 
     qDeleteAll(m_cache);
     m_cache.clear();
 
     // first: search for meta data protocol info, that might be bundled with applications
     // we search in all library paths inside kf5/kio
     const QVector<KPluginMetaData> plugins = KPluginMetaData::findPlugins(QStringLiteral("kf" QT_STRINGIFY(QT_VERSION_MAJOR) "/kio"));
     for (const KPluginMetaData &md : plugins) {
         // get worker name & protocols it supports, if any
         const QString workerPath = md.fileName();
         const QJsonObject protocols(md.rawData().value(QStringLiteral("KDE-KIO-Protocols")).toObject());
         qCDebug(KIO_CORE) << workerPath << "supports protocols" << protocols.keys();
 
         // add all protocols, does nothing if object invalid
         for (auto it = protocols.begin(); it != protocols.end(); ++it) {
             // skip empty objects
             const QJsonObject protocol(it.value().toObject());
             if (protocol.isEmpty()) {
                 continue;
             }
 
             // add to cache, skip double entries
             if (!m_cache.contains(it.key())) {
                 m_cache.insert(it.key(), new KProtocolInfoPrivate(it.key(), workerPath, protocol));
             }
         }
     }
 
 #if KIOCORE_BUILD_DEPRECATED_SINCE(5, 84)
     // second: fallback to .protocol files
     const QStringList serviceDirs =
         QStandardPaths::locateAll(QStandardPaths::GenericDataLocation, QStringLiteral("kservices5"), QStandardPaths::LocateDirectory)
         << QCoreApplication::applicationDirPath() + QLatin1String("/kservices5");
     for (const QString &serviceDir : serviceDirs) {
         QDirIterator it(serviceDir);
         while (it.hasNext()) {
             const QString file = it.next();
             if (file.endsWith(QLatin1String(".protocol"))) {
                 const QString prot = it.fileInfo().baseName();
                 // add to cache, skip double entries
                 if (!m_cache.contains(prot)) {
                     qCDebug(KIO_CORE) << "Loading deprecated protocol file, please port it to JSON metadata" << file;
                     m_cache.insert(prot, new KProtocolInfoPrivate(file));
                 }
             }
         }
     }
 #endif
 
     // all done, don't do it again
     m_cacheDirty = false;
     return true;
 }