From 13f69779c298173bd21b83dd6cc538814f2b9155 Mon Sep 17 00:00:00 2001 From: Vincent Richard Date: Sun, 12 Oct 2008 13:59:09 +0000 Subject: New namespace for encoders. --- src/encoderB64.cpp | 305 ----------------------------------------------------- 1 file changed, 305 deletions(-) delete mode 100644 src/encoderB64.cpp (limited to 'src/encoderB64.cpp') diff --git a/src/encoderB64.cpp b/src/encoderB64.cpp deleted file mode 100644 index 2c16ee75..00000000 --- a/src/encoderB64.cpp +++ /dev/null @@ -1,305 +0,0 @@ -// -// VMime library (http://www.vmime.org) -// Copyright (C) 2002-2008 Vincent Richard -// -// 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 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. -// -// Linking this library statically or dynamically with other modules is making -// a combined work based on this library. Thus, the terms and conditions of -// the GNU General Public License cover the whole combination. -// - -#include "vmime/encoderB64.hpp" -#include "vmime/parserHelpers.hpp" - - -namespace vmime -{ - - -encoderB64::encoderB64() -{ -} - - -const std::vector encoderB64::getAvailableProperties() const -{ - std::vector list(encoder::getAvailableProperties()); - - list.push_back("maxlinelength"); - - return (list); -} - - -// 7-bits alphabet used to encode binary data -const unsigned char encoderB64::sm_alphabet[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; - -const unsigned char encoderB64::sm_decodeMap[256] = -{ - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0x00 - 0x0f - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0x10 - 0x1f - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x3e,0xff,0xff,0xff,0x3f, // 0x20 - 0x2f - 0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0xff,0xff,0xff,0x3d,0xff,0xff, // 0x30 - 0x3f - 0xff,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e, // 0x40 - 0x4f - 0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0xff,0xff,0xff,0xff,0xff, // 0x50 - 0x5f - 0xff,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28, // 0x60 - 0x6f - 0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,0xff,0xff,0xff,0xff,0xff, // 0x70 - 0x7f - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0x80 - 0x8f - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0x90 - 0x9f - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xa0 - 0xaf - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xb0 - 0xbf - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xc0 - 0xcf - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xd0 - 0xdf - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xe0 - 0xef - 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, // 0xf0 - 0xff -}; - -#ifndef VMIME_BUILDING_DOC - #define B64_WRITE(s, x, l) s.write(reinterpret_cast (x), l) -#endif // VMIME_BUILDING_DOC - - - -utility::stream::size_type encoderB64::encode(utility::inputStream& in, - utility::outputStream& out, utility::progressListener* progress) -{ - in.reset(); // may not work... - - const int propMaxLineLength = getProperties().getProperty ("maxlinelength", -1); - - const bool cutLines = (propMaxLineLength != -1); - const int maxLineLength = std::min(propMaxLineLength, 76); - - // Process data - utility::stream::value_type buffer[65536]; - utility::stream::size_type bufferLength = 0; - utility::stream::size_type bufferPos = 0; - - unsigned char bytes[3]; - unsigned char output[4]; - - utility::stream::size_type total = 0; - utility::stream::size_type inTotal = 0; - - int curCol = 0; - - if (progress) - progress->start(0); - - while (bufferPos < bufferLength || !in.eof()) - { - if (bufferPos >= bufferLength) - { - bufferLength = in.read(buffer, sizeof(buffer)); - bufferPos = 0; - - if (bufferLength == 0) - break; - } - - // Get 3 bytes of data - int count = 0; - - while (count < 3 && bufferPos < bufferLength) - bytes[count++] = buffer[bufferPos++]; - - while (count < 3) - { - // There may be more data in the next chunk... - if (bufferPos >= bufferLength) - { - bufferLength = in.read(buffer, sizeof(buffer)); - bufferPos = 0; - - if (bufferLength == 0) - break; - } - - while (count < 3 && bufferPos < bufferLength) - bytes[count++] = buffer[bufferPos++]; - } - - // Encode data - switch (count) - { - case 1: - - output[0] = sm_alphabet[(bytes[0] & 0xFC) >> 2]; - output[1] = sm_alphabet[(bytes[0] & 0x03) << 4]; - output[2] = sm_alphabet[64]; // padding - output[3] = sm_alphabet[64]; // padding - - break; - - case 2: - - output[0] = sm_alphabet[(bytes[0] & 0xFC) >> 2]; - output[1] = sm_alphabet[((bytes[0] & 0x03) << 4) | ((bytes[1] & 0xF0) >> 4)]; - output[2] = sm_alphabet[(bytes[1] & 0x0F) << 2]; - output[3] = sm_alphabet[64]; // padding - - break; - - default: - case 3: - - output[0] = sm_alphabet[(bytes[0] & 0xFC) >> 2]; - output[1] = sm_alphabet[((bytes[0] & 0x03) << 4) | ((bytes[1] & 0xF0) >> 4)]; - output[2] = sm_alphabet[((bytes[1] & 0x0F) << 2) | ((bytes[2] & 0xC0) >> 6)]; - output[3] = sm_alphabet[(bytes[2] & 0x3F)]; - - break; - } - - // Write encoded data to output stream - B64_WRITE(out, output, 4); - - inTotal += count; - total += 4; - curCol += 4; - - if (cutLines && curCol >= maxLineLength - 2 /* \r\n */ - 4 /* next bytes */) - { - out.write("\r\n", 2); - curCol = 0; - } - - if (progress) - progress->progress(inTotal, inTotal); - } - - if (progress) - progress->stop(inTotal); - - return (total); -} - - -utility::stream::size_type encoderB64::decode(utility::inputStream& in, - utility::outputStream& out, utility::progressListener* progress) -{ - in.reset(); // may not work... - - // Process the data - char buffer[16384]; - int bufferLength = 0; - int bufferPos = 0; - - utility::stream::size_type total = 0; - utility::stream::size_type inTotal = 0; - - unsigned char bytes[4]; - unsigned char output[3]; - - if (progress) - progress->start(0); - - while (bufferPos < bufferLength || !in.eof()) - { - bytes[0] = '='; - bytes[1] = '='; - bytes[2] = '='; - bytes[3] = '='; - - // Need to get more data? - if (bufferPos >= bufferLength) - { - bufferLength = in.read(buffer, sizeof(buffer)); - bufferPos = 0; - - // No more data - if (bufferLength == 0) - break; - } - - // 4 bytes of input provide 3 bytes of output, so - // get the next 4 bytes from the input stream. - int count = 0; - - while (count < 4 && bufferPos < bufferLength) - { - const unsigned char c = buffer[bufferPos++]; - - if (!parserHelpers::isSpace(c)) - bytes[count++] = c; - } - - if (count != 4) - { - while (count < 4 && !in.eof()) - { - // Data continues on the next chunk - bufferLength = in.read(buffer, sizeof(buffer)); - bufferPos = 0; - - while (count < 4 && bufferPos < bufferLength) - { - const unsigned char c = buffer[bufferPos++]; - - if (!parserHelpers::isSpace(c)) - bytes[count++] = c; - } - } - } - - // Decode the bytes - unsigned char c1 = bytes[0]; - unsigned char c2 = bytes[1]; - - if (c1 == '=' || c2 == '=') // end - break; - - output[0] = static_cast ((sm_decodeMap[c1] << 2) | ((sm_decodeMap[c2] & 0x30) >> 4)); - - c1 = bytes[2]; - - if (c1 == '=') // end - { - B64_WRITE(out, output, 1); - total += 1; - break; - } - - output[1] = static_cast (((sm_decodeMap[c2] & 0xf) << 4) | ((sm_decodeMap[c1] & 0x3c) >> 2)); - - c2 = bytes[3]; - - if (c2 == '=') // end - { - B64_WRITE(out, output, 2); - total += 2; - break; - } - - output[2] = static_cast (((sm_decodeMap[c1] & 0x03) << 6) | sm_decodeMap[c2]); - - B64_WRITE(out, output, 3); - total += 3; - inTotal += count; - - if (progress) - progress->progress(inTotal, inTotal); - } - - if (progress) - progress->stop(inTotal); - - return (total); -} - - -} // vmime -- cgit