Add support for CAB archives to rbutil

Change-Id: Ia8b4953343caf8bc2b3c5a6cfd53c921c6d082b1
Reviewed-on: http://gerrit.rockbox.org/418
Reviewed-by: Dominik Riebeling <Dominik.Riebeling@gmail.com>

rbutil/rbutilqt/base/mspackutil.cpp

@@ -0,0 +1,163 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ *   Copyright (C) 2013 Amaury Pouly
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <QtCore>
+#include <QDebug>
+#include "mspackutil.h"
+#include "progressloggerinterface.h"
+
+MsPackUtil::MsPackUtil(QObject* parent)
+    :ArchiveUtil(parent)
+{
+    m_cabd = mspack_create_cab_decompressor(NULL);
+    m_cabinet = NULL;
+    if(!m_cabd)
+        qDebug() << "[MsPackUtil] CAB decompressor creation failed!";
+}
+
+MsPackUtil::~MsPackUtil()
+{
+    close();
+    if(m_cabd)
+        mspack_destroy_cab_decompressor(m_cabd);
+}
+
+bool MsPackUtil::open(QString& mspackfile)
+{
+    close();
+
+    if(m_cabd == NULL)
+    {
+        qDebug() << "[MsPackUtil] No CAB decompressor available: cannot open file!";
+        return false;
+    }
+    m_cabinet = m_cabd->search(m_cabd, QFile::encodeName(mspackfile).constData());
+    return m_cabinet != NULL;
+}
+
+bool MsPackUtil::close(void)
+{
+    if(m_cabd && m_cabinet)
+        m_cabd->close(m_cabd, m_cabinet);
+    m_cabinet = NULL;
+    return true;
+}
+
+bool MsPackUtil::extractArchive(const QString& dest, QString file)
+{
+    qDebug() << "[MsPackUtil] extractArchive" << dest << file;
+    if(!m_cabinet)
+    {
+        qDebug() << "[MsPackUtil] CAB file not open!";
+        return false;
+    }
+
+    // construct the filename when extracting a single file from an archive.
+    // if the given destination is a full path use it as output name,
+    // otherwise use it as path to place the file as named in the archive.
+    QString singleoutfile;
+    if(!file.isEmpty() && QFileInfo(dest).isDir())
+        singleoutfile = dest + "/" + file;
+    else if(!file.isEmpty())
+        singleoutfile = dest;
+    struct mscabd_file *f = m_cabinet->files;
+    if(f == NULL)
+    {
+        qDebug() << "[MsPackUtil] CAB doesn't contain file" << file;
+        return true;
+    }
+    bool found = false;
+    while(f)
+    {
+        QString name = QFile::decodeName(f->filename);
+        name.replace("\\", "/");
+        if(name.at(0) == '/')
+            name.remove(0, 1);
+        if(name == file || file.isEmpty())
+        {
+            QString path;
+            if(!singleoutfile.isEmpty())
+                path = singleoutfile;
+            else
+                path = dest + "/" + name;
+            // make sure the output path exists
+            if(!QDir().mkpath(QFileInfo(path).absolutePath()))
+            {
+                emit logItem(tr("Creating output path failed"), LOGERROR);
+                qDebug() << "[MsPackUtil] creating output path failed for:" << path;
+                emit logProgress(1, 1);
+                return false;
+            }
+            int ret = m_cabd->extract(m_cabd, f, QFile::encodeName(path).constData());
+            if(ret != MSPACK_ERR_OK)
+            {
+                emit logItem(tr("Error during CAB operation"), LOGERROR);
+                qDebug() << "[MsPackUtil] mspack error: " << ret << "(" << errorStringMsPack(ret) << ")";
+                emit logProgress(1, 1);
+                return false;
+            }
+            found = true;
+        }
+        f = f->next;
+    }
+    emit logProgress(1, 1);
+
+    return found;
+}
+
+QStringList MsPackUtil::files(void)
+{
+    QStringList list;
+    if(!m_cabinet)
+    {
+        qDebug() << "[MsPackUtil] CAB file not open!";
+        return list;
+    }
+    struct mscabd_file *file = m_cabinet->files;
+    while(file)
+    {
+        QString name = QFile::decodeName(file->filename);
+        name.replace("\\", "/");
+        if(name.at(0) == '/')
+            name.remove(0, 1);
+        list.append(name);
+        file = file->next;
+    }
+
+    return list;
+}
+
+QString MsPackUtil::errorStringMsPack(int error) const
+{
+    switch(error)
+    {
+        case MSPACK_ERR_OK: return "Ok";
+        case MSPACK_ERR_ARGS: return "Bad arguments";
+        case MSPACK_ERR_OPEN: return "Open error";
+        case MSPACK_ERR_READ: return "Read error";
+        case MSPACK_ERR_WRITE: return "Write error";
+        case MSPACK_ERR_SEEK: return "Seek error";
+        case MSPACK_ERR_NOMEMORY: return "Out of memory";
+        case MSPACK_ERR_SIGNATURE: return "Bad signature";
+        case MSPACK_ERR_DATAFORMAT: return "Bad data format";
+        case MSPACK_ERR_CHECKSUM: return "Checksum error";
+        case MSPACK_ERR_CRUNCH: return "Compression error";
+        case MSPACK_ERR_DECRUNCH: return "Decompression error";
+        default: return "Unknown";
+    }
+}