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/*
* OpenRPT report writer and rendering engine
* Copyright (C) 2001-2014 by OpenMFG, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* Please contact info@openmfg.com with any questions on this license.
*/
#include "quuencode.h"
#include <QString>
#include <QIODevice>
#include <QTextStream>
#include <QBuffer>
#include <QChar>
#define ENC(c) ((c) ? ((c) & 077) + ' ': '`')
#define DEC(c) (((c) - ' ') & 077)
QString QUUEncode(QIODevice & iod, const QString & _remote, int mode) {
QString value;
QString remote = _remote;
if(!iod.isOpen()) {
if(!iod.open(QIODevice::ReadOnly)) {
qDebug("Could not open the QIODevice for reading.");
return QString::null;
}
}
if(remote == QString::null) remote = "internal";
if(mode == 0) mode = 0644;
value = QString().sprintf("begin %o %s\n", mode, remote.toLatin1().data());
qint64 nr = 0;
char data[45];
char c;
char * b;
while( (nr = iod.read(&data[0], 45)) > 0 ) {
c = ENC(nr);
value += c;
for(b = data; nr > 0; nr -= 3, b += 3) {
c = b[0] >> 2;
c = ENC(c);
value += c;
c = ((b[0] << 4) & 060) | ((b[1] >> 4) & 017);
c = ENC(c);
value += c;
c = ((b[1] << 2) & 074) | ((b[2] >> 6) & 03);
c = ENC(c);
value += c;
c = b[2] & 077;
c = ENC(c);
value += c;
}
value += '\n';
}
c = ENC('\0');
value += c;
value += "\nend\n";
return value;
}
QByteArray QUUDecode(const QString & _source, QString * name, int * mode) {
QString source = _source;
QByteArray b;
if(source.isEmpty()) return b;
QTextStream in(&source, QIODevice::ReadOnly);
QString l;
// find the start of the UUEncoded data
while( ((l = in.readLine()) != QString::null) && (!l.startsWith("begin ")) );
if(!l.startsWith("begin ")) {
return b; // not UUEncoded data, returns empty array
}
QTextStream tin(&l, QIODevice::ReadOnly);
QString _begin, _name, _mode;
tin >> _begin;
tin >> _mode;
tin >> _name;
if(_begin != "begin") {
qDebug("We may have a problem. Header not parsed correctly.");
}
if(name != 0) {
*name = _name;
}
QChar qc;
char c;
if(mode != 0) {
*mode = 0;
for(int i = 0; i < _mode.length(); i++) {
qc = _mode.at(i);
c = qc.toLatin1();
c -= '0'; // convert the ascii value to the decimal value
*mode = (*mode << 3) | (c & 07);
}
}
QBuffer buf(&b);
buf.open(QIODevice::WriteOnly);
int num = 0;
char c0, c1, c2, c3;
while( ((l = in.readLine()) != QString::null) && (!l.startsWith("end")) ) {
qc = l[0];
c = qc.toLatin1();
num = DEC(c);
for(int p = 1; num > 0; p += 4, num -= 3) {
if(num >= 3) {
qc = l[p + 0];
c0 = qc.toLatin1();
qc = l[p + 1];
c1 = qc.toLatin1();
qc = l[p + 2];
c2 = qc.toLatin1();
qc = l[p + 3];
c3 = qc.toLatin1();
c = DEC(c0) << 2 | DEC(c1) >> 4;
buf.putChar(c);
c = DEC(c1) << 4 | DEC(c2) >> 2;
buf.putChar(c);
c = DEC(c2) << 6 | DEC(c3);
buf.putChar(c);
} else {
if(num >= 1) {
qc = l[p + 0];
c0 = qc.toLatin1();
qc = l[p + 1];
c1 = qc.toLatin1();
c = DEC(c0) << 2 | DEC(c1) >> 4;
buf.putChar(c);
}
if(num >= 2) {
qc = l[p + 1];
c1 = qc.toLatin1();
qc = l[p + 2];
c2 = qc.toLatin1();
c = DEC(c1) << 4 | DEC(c2) >> 2;
buf.putChar(c);
}
}
}
}
if(!l.startsWith("end")) {
qDebug("We seem to have run out of file before we were finished.");
}
return b;
}
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