Initial import

1 files changed, 243 insertions, 0 deletions

diff --git a/kbiff/kbiffcodec.cpp b/kbiff/kbiffcodec.cpp
new file mode 100644
index 0000000..c69525d
--- /dev/null
+++ b/kbiff/kbiffcodec.cpp
@@ -0,0 +1,243 @@
+/*
+   This is taken from kdmcodec.h from kdelibs/kdecore in KDE 2.2
+   -------------------------------------------------------------
+
+   Copyright (C) 2000-2001 Dawit Alemayehu <adawit@kde.org>
+   Copyright (C) 2001 Rik Hemsley (rikkus) <rik@kde.org>
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License (LGPL) 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   This KMD5 class is based upon a C++ implementation of "RSA
+   Data Security, Inc. MD5 Message-Digest Algorithm" by Mordechai
+   T. Abzug,	Copyright (c) 1995.  This implementation passes the
+   test-suite supplied with RFC 1321.
+
+   RFC 1321 "MD5 Message-Digest Algorithm" Copyright (C) 1991-1992,
+   RSA Data Security, Inc. Created 1991. All rights reserved.
+
+   The encoding and decoding utilities in KBiffCodecs with the exception of
+   quoted-printable were ported from the HTTPClient java package by Ronald
+   Tschalär Copyright (C) 1996-1999. The quoted-printable codec as described
+   in RFC 2045, section 6.7. is by Rik Hemsley (C) 2001.
+*/
+
+#include <string.h>
+
+#include "kbiffcodec.h"
+
+class CodecPrivate
+{
+public:
+  static char Base64EncMap[64];
+  static char Base64DecMap[128];
+
+static void base64Encode( const QByteArray& in, QByteArray& out)
+{
+    bool insertLFs(false);
+
+    // clear out the output buffer
+    out.resize( 0 );
+    if ( in.isEmpty() )
+        return;
+
+    unsigned int sidx = 0, didx = 0;
+    const char* buf = in.data();
+    const unsigned int len = in.size();
+
+    unsigned int out_len = ((len+2)/3)*4;
+
+    // Deal with the 76 characters or less per
+    // line limit specified in RFC 2045 on a
+    // pre request basis.
+    insertLFs = (insertLFs && out_len > 76);
+    if ( insertLFs )
+      out_len += (out_len/76);
+
+    int count = 0;
+    out.resize( out_len );
+
+    // 3-byte to 4-byte conversion + 0-63 to ascii printable conversion
+    if ( len > 1 )
+    {
+        while (sidx < len-2)
+        {
+            if ( insertLFs )
+            {
+                if ( count && (count%76) == 0 )
+                    out[didx++] = '\n';
+                count += 4;
+            }
+            out[didx++] = Base64EncMap[(buf[sidx] >> 2) & 077];
+            out[didx++] = Base64EncMap[((buf[sidx+1] >> 4) & 017) | ((buf[sidx] << 4) & 077)];
+            out[didx++] = Base64EncMap[((buf[sidx+2] >> 6) & 003) | ((buf[sidx+1] << 2) & 077)];
+            out[didx++] = Base64EncMap[buf[sidx+2] & 077];
+            sidx += 3;
+        }
+    }
+
+    if (sidx < len)
+    {
+        out[didx++] = Base64EncMap[(buf[sidx] >> 2) & 077];
+        if (sidx < len-1)
+        {
+            out[didx++] = Base64EncMap[((buf[sidx+1] >> 4) & 017) | ((buf[sidx] << 4) & 077)];
+            out[didx++] = Base64EncMap[(buf[sidx+1] << 2) & 077];
+        }
+        else
+        {
+            out[didx++] = Base64EncMap[(buf[sidx] << 4) & 077];
+        }
+    }
+
+    // Add padding
+    while (didx < out.size())
+    {
+        out[didx] = '=';
+        didx++;
+    }
+}
+
+static void base64Decode( const QByteArray& in, QByteArray& out )
+{
+    out.resize(0);
+    if ( in.isEmpty() )
+        return;
+
+    unsigned int count = 0;
+    unsigned int len = in.size(), tail = len;
+    const char* in_buf = in.data();
+
+    // Deal with possible *nix "BEGIN" marker!!
+    while ( count < len && (in_buf[count] == '\n' || in_buf[count] == '\r' ||
+            in_buf[count] == '\t' || in_buf[count] == ' ') )
+        count++;
+
+    if ( strncasecmp(in_buf, "begin", 5) == 0 )
+    {
+        count += 5;
+        while ( count < len && in_buf[count] != '\n' && in_buf[count] != '\r' )
+            count++;
+        in_buf += (++count);
+        tail = (len -= count);
+    }
+
+    // Find the tail end of the actual encoded data even if
+    // there is/are trailing CR and/or LF.
+    while ( in_buf[tail-1] == '=' || in_buf[tail-1] == '\n' ||
+            in_buf[tail-1] == '\r' )
+        if ( in_buf[--tail] != '=' ) len = tail;
+
+    unsigned int outIdx = 0;
+    out.resize( (count=len) );
+    for (unsigned int idx = 0; idx < count; idx++)
+    {
+        // Adhere to RFC 2045 and ignore characters
+        // that are not part of the encoding table.
+        char ch = in_buf[idx];
+        if ((ch > 47 && ch < 58) || (ch > 64 && ch < 91) ||
+            (ch > 96 && ch < 123) || ch == '+' || ch == '/' || ch == '=')
+        {
+            out[outIdx++] = Base64DecMap[(int)ch];
+        }
+        else
+        {
+            len--;
+            tail--;
+        }
+    }
+
+    // 4-byte to 3-byte conversion
+    len = (tail>(len/4)) ? tail-(len/4) : 0;
+    unsigned int sidx = 0, didx = 0;
+    if ( len > 1 )
+    {
+      while (didx < len-2)
+      {
+          out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx+1] >> 4) & 003));
+          out[didx+1] = (((out[sidx+1] << 4) & 255) | ((out[sidx+2] >> 2) & 017));
+          out[didx+2] = (((out[sidx+2] << 6) & 255) | (out[sidx+3] & 077));
+          sidx += 4;
+          didx += 3;
+      }
+    }
+
+    if (didx < len)
+        out[didx] = (((out[sidx] << 2) & 255) | ((out[sidx+1] >> 4) & 003));
+
+    if (++didx < len )
+        out[didx] = (((out[sidx+1] << 4) & 255) | ((out[sidx+2] >> 2) & 017));
+
+    // Resize the output buffer
+    if ( len == 0 || len < out.size() )
+      out.resize(len);
+}
+};
+
+// static constants for base64
+char CodecPrivate::Base64EncMap[64] = {
+                         0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
+                         0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
+                         0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
+                         0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
+                         0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E,
+                         0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
+                         0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33,
+                         0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F
+                         };
+
+char CodecPrivate::Base64DecMap[128] = {
+                          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x3F,
+                          0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
+                          0x3C, 0x3D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+                          0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
+                          0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
+                          0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
+                          0x00, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
+                          0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+                          0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30,
+                          0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00
+                          };
+
+/***************************************************************************/
+QString KBiffCodecs::base64Encode( const QString& str )
+{
+    if ( str.isEmpty() )
+        return QString::fromLatin1("");
+    QByteArray in, out;
+    const unsigned int len = str.length();
+    in.resize( len );
+    memcpy( in.data(), str.latin1(), len );
+    CodecPrivate::base64Encode( in, out );
+    return QString( out );
+}
+
+QString KBiffCodecs::base64Decode( const QString& str )
+{
+    if ( str.isEmpty() )
+        return QString::fromLatin1("");
+
+    QByteArray in, out;
+    const unsigned int len = str.length();
+    in.resize( str.length() );
+    memcpy( in.data(), str.latin1(), len );
+    CodecPrivate::base64Decode( in, out );
+    return QString( out );
+}