diff --git a/src/core/Tools.cpp b/src/core/Tools.cpp
index 341159546..77a7df910 100644
--- a/src/core/Tools.cpp
+++ b/src/core/Tools.cpp
@@ -17,6 +17,7 @@
 
 #include "Tools.h"
 
+#include <QtCore/QIODevice>
 #include <QtCore/QLocale>
 #include <QtCore/QStringList>
 
@@ -51,4 +52,27 @@ bool hasChild(const QObject* parent, const QObject* child)
     return false;
 }
 
+bool readAllFromDevice(QIODevice* device, QByteArray& data)
+{
+    QByteArray result;
+    qint64 readBytes = 0;
+    qint64 readResult;
+    do {
+        result.resize(result.size() + 16384);
+        readResult = device->read(result.data() + readBytes, result.size() - readBytes);
+        if (readResult > 0) {
+            readBytes += readResult;
+        }
+    } while (readResult > 0);
+
+    if (readResult == -1) {
+        return false;
+    }
+    else {
+        result.resize(static_cast<int>(readBytes));
+        data = result;
+        return true;
+    }
+}
+
 } // namespace Tools
diff --git a/src/core/Tools.h b/src/core/Tools.h
index 1241a6c39..75cd6dd67 100644
--- a/src/core/Tools.h
+++ b/src/core/Tools.h
@@ -21,10 +21,13 @@
 #include <QtCore/QObject>
 #include <QtCore/QString>
 
+class QIODevice;
+
 namespace Tools {
 
 QString humanReadableFileSize(qint64 bytes);
 bool hasChild(const QObject* parent, const QObject* child);
+bool readAllFromDevice(QIODevice* device, QByteArray& data);
 
 } // namespace Tools
 
diff --git a/src/format/KeePass2XmlReader.cpp b/src/format/KeePass2XmlReader.cpp
index d8bd9c975..97e4725a2 100644
--- a/src/format/KeePass2XmlReader.cpp
+++ b/src/format/KeePass2XmlReader.cpp
@@ -24,6 +24,7 @@
 #include "core/DatabaseIcons.h"
 #include "core/Group.h"
 #include "core/Metadata.h"
+#include "core/Tools.h"
 #include "format/KeePass2RandomStream.h"
 #include "streams/QtIOCompressor"
 
@@ -873,24 +874,10 @@ QByteArray KeePass2XmlReader::readCompressedBinary()
     compressor.open(QIODevice::ReadOnly);
 
     QByteArray result;
-    qint64 readBytes = 0;
-    qint64 readResult;
-    do {
-        result.resize(result.size() + 16384);
-        readResult = compressor.read(result.data() + readBytes, result.size() - readBytes);
-        if (readResult > 0) {
-            readBytes += readResult;
-        }
-    } while (readResult > 0);
-
-    if (readResult == -1) {
+    if (!Tools::readAllFromDevice(&compressor, result)) {
         raiseError(16);
-        return QByteArray();
-    }
-    else {
-        result.resize(static_cast<int>(readBytes));
-        return result;
     }
+    return result;
 }
 
 Group* KeePass2XmlReader::getGroup(const Uuid& uuid)