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Diffstat (limited to 'src/encoderUUE.cpp')
| -rw-r--r-- | src/encoderUUE.cpp | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/src/encoderUUE.cpp b/src/encoderUUE.cpp deleted file mode 100644 index ed54ffa7..00000000 --- a/src/encoderUUE.cpp +++ /dev/null @@ -1,328 +0,0 @@ -// -// VMime library (http://www.vmime.org) -// Copyright (C) 2002-2008 Vincent Richard <[email protected]> -// -// 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/encoderUUE.hpp" -#include "vmime/parserHelpers.hpp" - - -namespace vmime -{ - - -encoderUUE::encoderUUE() -{ - getProperties()["mode"] = 644; - getProperties()["filename"] = "no_name"; - getProperties()["maxlinelength"] = 46; -} - - -const std::vector <string> encoderUUE::getAvailableProperties() const -{ - std::vector <string> list(encoder::getAvailableProperties()); - - list.push_back("maxlinelength"); - - list.push_back("mode"); - list.push_back("filename"); - - return (list); -} - - -// This is the character encoding function to make a character printable -static inline unsigned char UUENCODE(const unsigned char c) -{ - return ((c & 077) + ' '); -} - -// Single character decoding -static inline unsigned char UUDECODE(const unsigned char c) -{ - return ((c - ' ') & 077); -} - - -utility::stream::size_type encoderUUE::encode(utility::inputStream& in, - utility::outputStream& out, utility::progressListener* progress) -{ - in.reset(); // may not work... - - const string propFilename = getProperties().getProperty <string>("filename", ""); - const string propMode = getProperties().getProperty <string>("mode", "644"); - - const string::size_type maxLineLength = - std::min(getProperties().getProperty <string::size_type>("maxlinelength", 46), - static_cast <string::size_type>(46)); - - utility::stream::size_type total = 0; - utility::stream::size_type inTotal = 0; - - // Output the prelude text ("begin [mode] [filename]") - out << "begin"; - - if (!propFilename.empty()) - { - out << " " << propMode << " " << propFilename; - total += 2 + propMode.length() + propFilename.length(); - } - - out << "\r\n"; - total += 7; - - // Process the data - utility::stream::value_type inBuffer[64]; - utility::stream::value_type outBuffer[64]; - - if (progress) - progress->start(0); - - while (!in.eof()) - { - // Process up to 45 characters per line - std::fill(inBuffer, inBuffer + sizeof(inBuffer), 0); - - const utility::stream::size_type inLength = in.read(inBuffer, maxLineLength - 1); - - outBuffer[0] = UUENCODE(inLength); // Line length - - utility::stream::size_type j = 1; - - for (utility::stream::size_type i = 0 ; i < inLength ; i += 3, j += 4) - { - const unsigned char c1 = static_cast <unsigned char>(inBuffer[i]); - const unsigned char c2 = static_cast <unsigned char>(inBuffer[i + 1]); - const unsigned char c3 = static_cast <unsigned char>(inBuffer[i + 2]); - - outBuffer[j] = UUENCODE(c1 >> 2); - outBuffer[j + 1] = UUENCODE((c1 << 4) & 060 | (c2 >> 4) & 017); - outBuffer[j + 2] = UUENCODE((c2 << 2) & 074 | (c3 >> 6) & 03); - outBuffer[j + 3] = UUENCODE(c3 & 077); - } - - outBuffer[j] = '\r'; - outBuffer[j + 1] = '\n'; - - out.write(outBuffer, j + 2); - - total += j + 2; - inTotal += inLength; - - if (progress) - progress->progress(inTotal, inTotal); - } - - out << "end\r\n"; - total += 5; - - if (progress) - progress->stop(inTotal); - - return (total); -} - - -utility::stream::size_type encoderUUE::decode(utility::inputStream& in, - utility::outputStream& out, utility::progressListener* progress) -{ - in.reset(); // may not work... - - // Process the data - utility::stream::value_type inBuffer[64]; - utility::stream::value_type outBuffer[64]; - - utility::stream::size_type total = 0; - utility::stream::size_type inTotal = 0; - - bool stop = false; - - std::fill(inBuffer, inBuffer + sizeof(inBuffer), 0); - - if (progress) - progress->start(0); - - while (!stop && !in.eof()) - { - // Get the line length - utility::stream::value_type lengthChar; - - if (in.read(&lengthChar, 1) == 0) - break; - - const utility::stream::size_type outLength = UUDECODE(lengthChar); - const utility::stream::size_type inLength = - std::min((outLength * 4) / 3, static_cast <utility::stream::size_type>(64)); - utility::stream::value_type inPos = 0; - - switch (lengthChar) - { - case ' ': - case '\t': - case '\r': - case '\n': - { - // Ignore - continue; - } - case 'b': - { - // Read 5 characters more to check for begin ("begin ...\r\n" or "begin ...\n") - inPos = in.read(inBuffer, 5); - - if (inPos == 5 && - inBuffer[0] == 'e' && - inBuffer[1] == 'g' && - inBuffer[2] == 'i' && - inBuffer[3] == 'n' && - parserHelpers::isSpace(inBuffer[4])) - { - inTotal += 5; - - utility::stream::value_type c = 0; - - utility::stream::size_type count = 0; - utility::stream::value_type buffer[512]; - - while (count < sizeof(buffer) - 1 && in.read(&c, 1) == 1) - { - if (c == '\n') - break; - - buffer[count++] = c; - } - - inTotal += count; - - if (c != '\n') - { - // OOPS! Weird line. Don't try to decode more... - - if (progress) - progress->stop(inTotal); - - return (total); - } - - // Parse filename and mode - if (count > 0) - { - buffer[count] = '\0'; - - utility::stream::value_type* p = buffer; - - while (*p && parserHelpers::isSpace(*p)) ++p; - - utility::stream::value_type* modeStart = buffer; - - while (*p && !parserHelpers::isSpace(*p)) ++p; - - getResults()["mode"] = string(modeStart, p); - - while (*p && parserHelpers::isSpace(*p)) ++p; - - utility::stream::value_type* filenameStart = buffer; - - while (*p && !(*p == '\r' || *p == '\n')) ++p; - - getResults()["filename"] = string(filenameStart, p); - } - // No filename or mode specified - else - { - getResults()["filename"] = "untitled"; - getResults()["mode"] = 644; - } - - continue; - } - - break; - } - case 'e': - { - // Read 3 characters more to check for end ("end\r\n" or "end\n") - inPos = in.read(inBuffer, 3); - - if (inPos == 3 && - inBuffer[0] == 'n' && - inBuffer[1] == 'd' && - (inBuffer[2] == '\r' || inBuffer[2] == '\n')) - { - stop = true; - inTotal += 3; - continue; - } - - break; - } - - } - - // Read encoded data - if (in.read(inBuffer + inPos, inLength - inPos) != inLength - inPos) - { - // Premature end of data - break; - } - - inTotal += (inLength - inPos); - - // Decode data - for (utility::stream::size_type i = 0, j = 0 ; i < inLength ; i += 4, j += 3) - { - const unsigned char c1 = static_cast <unsigned char>(inBuffer[i]); - const unsigned char c2 = static_cast <unsigned char>(inBuffer[i + 1]); - const unsigned char c3 = static_cast <unsigned char>(inBuffer[i + 2]); - const unsigned char c4 = static_cast <unsigned char>(inBuffer[i + 3]); - - const utility::stream::size_type n = - std::min(inLength - i, static_cast <utility::stream::size_type>(3)); - - switch (n) - { - default: - case 3: outBuffer[j + 2] = UUDECODE(c3) << 6 | UUDECODE(c4); - case 2: outBuffer[j + 1] = UUDECODE(c2) << 4 | UUDECODE(c3) >> 2; - case 1: outBuffer[j] = UUDECODE(c1) << 2 | UUDECODE(c2) >> 4; - case 0: break; - } - - total += n; - } - - out.write(outBuffer, outLength); - - std::fill(inBuffer, inBuffer + sizeof(inBuffer), 0); - - if (progress) - progress->progress(inTotal, inTotal); - } - - if (progress) - progress->stop(inTotal); - - return (total); -} - - -} // vmime |
