Extract readKeyFromLine.

src/keys/CompositeKey.cpp

@@ -18,12 +18,15 @@
 #include "CompositeKey.h"
 #include "CompositeKey_p.h"
 
-#include <QtConcurrent>
 #include <QElapsedTimer>
+#include <QFile>
+#include <QtConcurrent>
 
 #include "core/Global.h"
 #include "crypto/CryptoHash.h"
 #include "crypto/SymmetricCipher.h"
+#include "keys/FileKey.h"
+#include "keys/PasswordKey.h"
 
 CompositeKey::CompositeKey()
 {
@@ -71,6 +74,29 @@ CompositeKey& CompositeKey::operator=(const CompositeKey& key)
     return *this;
 }
 
+/*
+ * Read a key from a line of input.
+ * If the line references a valid file
+ * path, the key is loaded from file.
+ */
+CompositeKey CompositeKey::readFromLine(QString line)
+{
+
+  CompositeKey key;
+  if (QFile::exists(line)) {
+      FileKey fileKey;
+      fileKey.load(line);
+      key.addKey(fileKey);
+  }
+  else {
+      PasswordKey password;
+      password.setPassword(line);
+      key.addKey(password);
+  }
+  return key;
+
+}
+
 QByteArray CompositeKey::rawKey() const
 {
     CryptoHash cryptoHash(CryptoHash::Sha256);

src/keys/CompositeKey.h

@@ -19,6 +19,7 @@
 #define KEEPASSX_COMPOSITEKEY_H
 
 #include <QList>
+#include <QString>
 
 #include "keys/Key.h"
 
@@ -39,6 +40,7 @@ public:
     void addKey(const Key& key);
 
     static int transformKeyBenchmark(int msec);
+    static CompositeKey readFromLine(QString line);
 
 private:
     static QByteArray transformKeyRaw(const QByteArray& key, const QByteArray& seed,

tests/TestKeys.cpp

@@ -83,6 +83,22 @@ void TestKeys::testComposite()
     delete compositeKey4;
 }
 
+void TestKeys::testCompositeKeyReadFromLine()
+{
+
+    QString keyFilename = QString("%1/FileKeyXml.key").arg(QString(KEEPASSX_TEST_DATA_DIR));
+
+    CompositeKey compositeFileKey = CompositeKey::readFromLine(keyFilename);
+    FileKey fileKey;
+    fileKey.load(keyFilename);
+    QCOMPARE(compositeFileKey.rawKey().size(), fileKey.rawKey().size());
+
+    CompositeKey compositePasswordKey = CompositeKey::readFromLine(QString("password"));
+    PasswordKey passwordKey(QString("password"));
+    QCOMPARE(compositePasswordKey.rawKey().size(), passwordKey.rawKey().size());
+
+}
+
 void TestKeys::testFileKey()
 {
     QFETCH(QString, type);

tests/TestKeys.h

@@ -27,6 +27,7 @@ class TestKeys : public QObject
 private Q_SLOTS:
     void initTestCase();
     void testComposite();
+    void testCompositeKeyReadFromLine();
     void testFileKey();
     void testFileKey_data();
     void testCreateFileKey();

utils/kdbx-extract.cpp

@@ -33,8 +33,8 @@ int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
 
-    if (app.arguments().size() != 3) {
-        qCritical("Usage: kdbx-extract <password/key file> <kdbx file>");
+    if (app.arguments().size() != 2) {
+        qCritical("Usage: kdbx-extract <kdbx file>");
         return 1;
     }
 
@@ -42,19 +42,11 @@ int main(int argc, char **argv)
         qFatal("Fatal error while testing the cryptographic functions:\n%s", qPrintable(Crypto::errorString()));
     }
 
-    CompositeKey key;
-    if (QFile::exists(app.arguments().at(1))) {
-        FileKey fileKey;
-        fileKey.load(app.arguments().at(1));
-        key.addKey(fileKey);
-    }
-    else {
-        PasswordKey password;
-        password.setPassword(app.arguments().at(1));
-        key.addKey(password);
-    }
+    static QTextStream inputTextStream(stdin, QIODevice::ReadOnly);
+    QString line = inputTextStream.readLine();
+    CompositeKey key = CompositeKey::readFromLine(line);
 
-    QFile dbFile(app.arguments().at(2));
+    QFile dbFile(app.arguments().at(1));
     if (!dbFile.exists()) {
         qCritical("File does not exist.");
         return 1;

utils/kdbx-merge.cpp

@@ -29,31 +29,6 @@
 #include "format/KeePass2Reader.h"
 #include "format/KeePass2Writer.h"
 #include "keys/CompositeKey.h"
-#include "keys/FileKey.h"
-#include "keys/PasswordKey.h"
-
-/*
- * Read a key from a line of input.
- * If the line references a valid file
- * path, the key is loaded from file.
- */
-CompositeKey readKeyFromLine(QString line)
-{
-
-  CompositeKey key;
-  if (QFile::exists(line)) {
-      FileKey fileKey;
-      fileKey.load(line);
-      key.addKey(fileKey);
-  }
-  else {
-      PasswordKey password;
-      password.setPassword(line);
-      key.addKey(password);
-  }
-  return key;
-
-}
 
 int main(int argc, char **argv)
 {
@@ -85,7 +60,7 @@ int main(int argc, char **argv)
     static QTextStream inputTextStream(stdin, QIODevice::ReadOnly);
 
     QString line1 = inputTextStream.readLine();
-    CompositeKey key1 = readKeyFromLine(line1);
+    CompositeKey key1 = CompositeKey::readFromLine(line1);
 
     CompositeKey key2;
     if (parser.isSet("same-password")) {
@@ -93,7 +68,7 @@ int main(int argc, char **argv)
     }
     else {
       QString line2 = inputTextStream.readLine();
-      key2 = readKeyFromLine(line2);
+      key2 = CompositeKey::readFromLine(line2);
     }