1 files changed, 151 insertions, 0 deletions
diff --git a/src/libs/installer/setimportspathonqtcoreoperation.cpp b/src/libs/installer/setimportspathonqtcoreoperation.cpp
new file mode 100644
index 000000000..2bfacebb3
--- /dev/null
+++ b/src/libs/installer/setimportspathonqtcoreoperation.cpp
@@ -0,0 +1,151 @@
+/**************************************************************************
+**
+** This file is part of Installer Framework
+**
+** Copyright (c) 2011-2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#include "setimportspathonqtcoreoperation.h"
+
+#include "qtpatch.h"
+
+#include <QtCore/QByteArrayMatcher>
+#include <QtCore/QDir>
+#include <QtCore/QDebug>
+
+using namespace QInstaller;
+
+namespace {
+    QByteArray getOldValue(const QString &binaryPath)
+    {
+        QFileInfo fileInfo(binaryPath);
+
+        if (!fileInfo.exists()) {
+            qDebug() << QString::fromLatin1("qpatch: warning: file %1 not found").arg(binaryPath);
+            return QByteArray();
+        }
+
+
+        QFile file(binaryPath);
+        int readOpenCount = 0;
+        while (!file.open(QFile::ReadOnly) && readOpenCount < 20000) {
+            ++readOpenCount;
+            qApp->processEvents();
+        }
+        Q_ASSERT(file.isOpen());
+        if (!file.isOpen()) {
+            qDebug() << QString::fromLatin1("qpatch: warning: file %1 can not be opened as ReadOnly.").arg(
+                binaryPath);
+            qDebug() << file.errorString();
+            return QByteArray();
+        }
+
+        const QByteArray source = file.readAll();
+        file.close();
+
+        int offset = 0;
+        QByteArray searchValue("qt_impspath=");
+        QByteArrayMatcher byteArrayMatcher(searchValue);
+        offset = byteArrayMatcher.indexIn(source, offset);
+        Q_ASSERT(offset > 0);
+        if (offset == -1)
+            return QByteArray();
+
+        int stringEndPosition = offset;
+        while(source.at(stringEndPosition++) != '\0') {}
+        //after search string till the first \0 it should be our looking for QByteArray
+        return source.mid(offset + searchValue.size(), stringEndPosition - offset);
+    }
+}
+
+SetImportsPathOnQtCoreOperation::SetImportsPathOnQtCoreOperation()
+{
+    setName(QLatin1String("SetImportsPathOnQtCore"));
+}
+
+void SetImportsPathOnQtCoreOperation::backup()
+{
+}
+
+bool SetImportsPathOnQtCoreOperation::performOperation()
+{
+    const QStringList args = arguments();
+
+    if (args.count() != 2) {
+        setError(InvalidArguments);
+        setErrorString(tr("Invalid arguments in %0: %1 arguments given, exactly 2 expected.").arg(name())
+            .arg(arguments().count()));
+        return false;
+    }
+
+    const QString qtCoreLibraryDir = args.at(0);
+    const QByteArray newValue = QDir::toNativeSeparators(args.at(1)).toUtf8();
+
+    if (255 < newValue.size()) {
+        qDebug() << "qpatch: error: newQtDir needs to be less than 255 characters.";
+        return false;
+    }
+    QStringList libraryFiles;
+#ifdef Q_OS_WIN
+    libraryFiles << QString::fromLatin1("%1/QtCore4.dll").arg(qtCoreLibraryDir);
+    libraryFiles << QString::fromLatin1("%1/QtCore4d.dll").arg(qtCoreLibraryDir);
+#else
+    libraryFiles << qtCoreLibraryDir + QLatin1String("/libQtCore.so");
+#endif
+    foreach (const QString coreLibrary, libraryFiles) {
+        if (QFile::exists(coreLibrary)) {
+            QByteArray oldValue(getOldValue(coreLibrary));
+            Q_ASSERT(!oldValue.isEmpty());
+            oldValue = QByteArray("qt_impspath=%1").replace("%1", oldValue);
+            QByteArray adjutedNewValue = QByteArray("qt_impspath=%1").replace("%1", newValue);
+
+            bool isPatched = QtPatch::patchBinaryFile(coreLibrary, oldValue, adjutedNewValue);
+            if (!isPatched) {
+                qDebug() << "qpatch: warning: could not patch the imports path in" << coreLibrary;
+            }
+        }
+    }
+
+    return true;
+}
+
+bool SetImportsPathOnQtCoreOperation::undoOperation()
+{
+    return true;
+}
+
+bool SetImportsPathOnQtCoreOperation::testOperation()
+{
+    return true;
+}
+
+Operation *SetImportsPathOnQtCoreOperation::clone() const
+{
+    return new SetImportsPathOnQtCoreOperation();
+}
+