Long live Qt 4.5!

1 files changed, 218 insertions, 0 deletions

diff --git a/examples/network/torrent/metainfo.cpp b/examples/network/torrent/metainfo.cpp
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+++ b/examples/network/torrent/metainfo.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "bencodeparser.h"
+#include "metainfo.h"
+
+#include <QDateTime>
+#include <QMetaType>
+#include <QString>
+
+MetaInfo::MetaInfo()
+{
+    clear();
+}
+
+void MetaInfo::clear()
+{
+    errString = "Unknown error";
+    content.clear();
+    infoData.clear();
+    metaInfoMultiFiles.clear();
+    metaInfoAnnounce.clear();
+    metaInfoAnnounceList.clear();
+    metaInfoCreationDate = QDateTime();
+    metaInfoComment.clear();
+    metaInfoCreatedBy.clear();
+    metaInfoName.clear();
+    metaInfoPieceLength = 0;
+    metaInfoSha1Sums.clear();
+}
+
+bool MetaInfo::parse(const QByteArray &data)
+{
+    clear();
+    content = data;
+
+    BencodeParser parser;
+    if (!parser.parse(content)) {
+        errString = parser.errorString();
+        return false;
+    }
+
+    infoData = parser.infoSection();
+
+    QMap<QByteArray, QVariant> dict = parser.dictionary();
+    if (!dict.contains("info"))
+        return false;
+
+    QMap<QByteArray, QVariant> info = qVariantValue<Dictionary>(dict.value("info"));
+
+    if (info.contains("files")) {
+        metaInfoFileForm = MultiFileForm;
+
+        QList<QVariant> files = info.value("files").toList();
+
+        for (int i = 0; i < files.size(); ++i) {
+            QMap<QByteArray, QVariant> file = qVariantValue<Dictionary>(files.at(i));
+            QList<QVariant> pathElements = file.value("path").toList();
+            QByteArray path;
+            foreach (QVariant p, pathElements) {
+                if (!path.isEmpty())
+                    path += "/";
+                path += p.toByteArray();
+            }
+
+            MetaInfoMultiFile multiFile;
+            multiFile.length = file.value("length").toLongLong();
+            multiFile.path = QString::fromUtf8(path);
+            multiFile.md5sum = file.value("md5sum").toByteArray();
+            metaInfoMultiFiles << multiFile;
+        }
+
+        metaInfoName = QString::fromUtf8(info.value("name").toByteArray());
+        metaInfoPieceLength = info.value("piece length").toInt();
+        QByteArray pieces = info.value("pieces").toByteArray();
+        for (int i = 0; i < pieces.size(); i += 20)
+            metaInfoSha1Sums << pieces.mid(i, 20);
+    } else if (info.contains("length")) {
+        metaInfoFileForm = SingleFileForm;
+        metaInfoSingleFile.length = info.value("length").toLongLong();
+        metaInfoSingleFile.md5sum = info.value("md5sum").toByteArray();
+        metaInfoSingleFile.name = QString::fromUtf8(info.value("name").toByteArray());
+        metaInfoSingleFile.pieceLength = info.value("piece length").toInt();
+
+        QByteArray pieces = info.value("pieces").toByteArray();
+        for (int i = 0; i < pieces.size(); i += 20)
+            metaInfoSingleFile.sha1Sums << pieces.mid(i, 20);
+    }
+
+    metaInfoAnnounce = QString::fromUtf8(dict.value("announce").toByteArray());
+
+    if (dict.contains("announce-list")) {
+        // ### unimplemented
+    }
+
+    if (dict.contains("creation date"))
+        metaInfoCreationDate.setTime_t(dict.value("creation date").toInt());
+    if (dict.contains("comment"))
+        metaInfoComment = QString::fromUtf8(dict.value("comment").toByteArray());
+    if (dict.contains("created by"))
+        metaInfoCreatedBy = QString::fromUtf8(dict.value("created by").toByteArray());
+
+    return true;
+}
+
+QByteArray MetaInfo::infoValue() const
+{
+    return infoData;
+}
+
+QString MetaInfo::errorString() const
+{
+    return errString;
+}
+
+MetaInfo::FileForm MetaInfo::fileForm() const
+{
+    return metaInfoFileForm;
+}
+
+QString MetaInfo::announceUrl() const
+{
+    return metaInfoAnnounce;
+}
+
+QStringList MetaInfo::announceList() const
+{
+    return metaInfoAnnounceList;
+}
+
+QDateTime MetaInfo::creationDate() const
+{
+    return metaInfoCreationDate;
+}
+
+QString MetaInfo::comment() const
+{
+    return metaInfoComment;
+}
+
+QString MetaInfo::createdBy() const
+{
+    return metaInfoCreatedBy;
+}
+
+MetaInfoSingleFile MetaInfo::singleFile() const
+{
+    return metaInfoSingleFile;
+}
+
+QList<MetaInfoMultiFile> MetaInfo::multiFiles() const
+{
+    return metaInfoMultiFiles;
+}
+
+QString MetaInfo::name() const
+{
+    return metaInfoName;
+}
+
+int MetaInfo::pieceLength() const
+{
+    return metaInfoPieceLength;
+}
+
+QList<QByteArray> MetaInfo::sha1Sums() const
+{
+    return metaInfoSha1Sums;
+}
+
+qint64 MetaInfo::totalSize() const
+{
+    if (fileForm() == SingleFileForm)
+        return singleFile().length;
+
+    qint64 size = 0;
+    foreach (MetaInfoMultiFile file, multiFiles())
+        size += file.length;
+    return size;
+}