initial GPLv2 releaseHEADmaster

1 files changed, 126 insertions, 0 deletions

diff --git a/base64.cpp b/base64.cpp
new file mode 100644
index 0000000..38837fe
--- /dev/null
+++ b/base64.cpp
@@ -0,0 +1,126 @@
+/*
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Authors: Manuel Mausz (manuel@mausz.at)
+ *          Christian Raschko (c.raschko@netcore.at)
+ */
+
+//Header
+#include "base64.h"
+
+//Libraries
+#include <ctype.h>
+
+static const wxString base64_chars =
+  _T("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+  _T("abcdefghijklmnopqrstuvwxyz")
+  _T("0123456789+/");
+
+
+static inline bool is_base64(unsigned char c)
+{
+  return (isalnum(c) || (c == '+') || (c == '/'));
+}
+
+wxString Base64Encode(char const* bytes_to_encode, unsigned int in_len)
+{
+  wxString ret;
+  int i = 0;
+  int j = 0;
+  unsigned char char_array_3[3];
+  unsigned char char_array_4[4];
+
+  while (in_len--)
+  {
+    char_array_3[i++] = *(bytes_to_encode++);
+    if (i == 3) {
+      char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
+      char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+      char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
+      char_array_4[3] = char_array_3[2] & 0x3f;
+
+      for(i = 0; i < 4; i++)
+        ret += base64_chars[char_array_4[i]];
+      i = 0;
+    }
+  }
+
+  if (i)
+  {
+    for(j = i; j < 3; j++)
+      char_array_3[j] = '\0';
+
+    char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
+    char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+    char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
+    char_array_4[3] = char_array_3[2] & 0x3f;
+
+    for (j = 0; j < i + 1; j++)
+      ret += base64_chars[char_array_4[j]];
+
+    while(i++ < 3)
+      ret += '=';
+  }
+
+  return ret;
+
+}
+
+wxString Base64Decode(wxString const& encoded_string)
+{
+  int in_len = encoded_string.size();
+  int i = 0;
+  int j = 0;
+  int in_ = 0;
+  unsigned char char_array_4[4], char_array_3[3];
+  wxString ret;
+
+  while (in_len-- && encoded_string[in_] != '=' && is_base64(encoded_string[in_]))
+  {
+    char_array_4[i++] = encoded_string[in_];
+    in_++;
+    if (i ==4)
+    {
+      for (i = 0; i < 4; i++)
+        char_array_4[i] = base64_chars.find(char_array_4[i]);
+
+      char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+      char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+      char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+      for (i = 0; i < 3; i++)
+        ret += char_array_3[i];
+      i = 0;
+    }
+  }
+
+  if (i)
+  {
+    for (j = i; j < 4; j++)
+      char_array_4[j] = 0;
+
+    for (j = 0; j < 4; j++)
+      char_array_4[j] = base64_chars.find(char_array_4[j]);
+
+    char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+    char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+    char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+    for (j = 0; j < i - 1; j++)
+      ret += char_array_3[j];
+  }
+
+  return ret;
+}
+