1 files changed, 119 insertions, 0 deletions
diff --git a/kftpgrabber/src/misc/desencryptor.cpp b/kftpgrabber/src/misc/desencryptor.cpp
new file mode 100644
index 0000000..d53fd5e
--- /dev/null
+++ b/kftpgrabber/src/misc/desencryptor.cpp
@@ -0,0 +1,119 @@
+/*
+ * This file is part of the KFTPGrabber project
+ *
+ * Copyright (C) 2004 by the KFTPGrabber developers
+ * Copyright (C) 2004 Jernej Kos <kostko@jweb-network.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
+ * NON-INFRINGEMENT.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+
+#include "desencryptor.h"
+
+#include <kmdcodec.h>
+#include <qfile.h>
+
+namespace KFTPGrabberBase {
+
+DESEncryptor::DESEncryptor()
+{
+}
+
+void DESEncryptor::DESExec(const QString &str, int mode)
+{
+  QCString string(str.ascii());
+  m_output = "";
+  
+  QByteArray in;
+  QByteArray out;
+  
+  if (mode == DES_DECRYPT) {
+    // Base64 decode the output
+    KCodecs::base64Decode(string, in);
+  } else {
+    in.resize(string.size());
+    memcpy(in.data(), string.data(), in.size());
+  }
+  
+  // Read 8 chars at a time and encrypt/decrypt them
+  unsigned int i = 0;
+  char *o_message = (char*) malloc(8);
+  char *o_output = (char*) malloc(8);
+  
+  memset(o_message, 0, 9);
+  memset(o_output, 0, 9);
+  //out.resize(in.size() * 2);
+  
+  while (i < in.size()) {
+    out.resize(out.size() + 8);
+    memcpy(o_message, in.data() + i, 8);
+    DES_ecb_encrypt((DES_cblock *) o_message, (DES_cblock*) o_output, &m_schedule, mode);
+    memcpy(out.data() + i, o_output, 8);
+    
+    // Next 8 bytes
+    i += 8;
+    
+    // Clear everything
+    memset(o_message, 0, 9);
+    memset(o_output, 0, 9);
+  }
+  
+  free(o_message);
+  free(o_output);
+  
+  if (mode == DES_ENCRYPT) {
+    // Base64 encode the output
+    m_output = KCodecs::base64Encode(out).data();
+  } else {
+    m_output = QCString(out).data();
+  }
+}
+
+void DESEncryptor::setKey(const QString &key)
+{
+  // Setup our DES key
+  DES_string_to_key(key.ascii(), &m_key);  
+  DES_set_key_checked(&m_key, &m_schedule);
+}
+
+void DESEncryptor::encrypt(const QString &string)
+{
+  DESExec(string, DES_ENCRYPT);
+}
+
+void DESEncryptor::decrypt(const QString &string)
+{
+  DESExec(string, DES_DECRYPT);
+}
+
+QString DESEncryptor::output()
+{
+  return m_output;
+}
+
+}