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#include "backend.h"
#include <QDebug>
#include <QTime>
#include <stdlib.h>
#include "config.h"
Backend* Backend::_instance;
Backend::Backend()
{
qDebug("Backend::Backend() called!");
_process = new QProcess();
QTime time = QTime::currentTime();
srand((uint)time.msec());
connect(_process, SIGNAL(finished(int)), this, SLOT(slotProcessExited()));
connect(_process, SIGNAL(readyReadStandardOutput()), this, SLOT(slotReceiveOutput()));
}
Backend::~Backend()
{
}
void Backend::runBackend()
{
QStringList command = QStringList() << BACKEND_PATH << "-ni";
_process->start(command.join(" "));
busy = true; emit isBusy(true);
}
bool Backend::isBusy()
{
return (busy && commandQueue.isEmpty());
}
bool Backend::flag(QString flag)
{
return flags.contains(flag);
}
void Backend::_flag(QString flag, bool set)
{
if(set)
{
if(!flags.contains(flag))
flags.append(flag);
}
else
{
if(flags.contains(flag))
flags.remove(flags.indexOf(flag));
}
}
void Backend::flag(QString flag, bool set)
{
if(set)
{
exec("flag_set '"+flag.replace("'","\\'")+"'");
_flag(flag, true);
}
else
{
exec("flag_unset '"+flag.replace("'","\\'")+"'");
_flag(flag, false);
}
}
QString Backend::cfg(QString var)
{
return cfgMap.value(var);
}
void Backend::_cfg(QString var, QString value)
{
cfgMap[var] = value;
}
void Backend::cfg(QString var, QString value)
{
exec("cfg_set '"+var.replace("'","\\'")+"' '"+value.replace("'","\\'")+"'");
_cfg(var, value);
}
void Backend::exec(QString command)
{
qDebug("Backend::exec(\""+command.toAscii()+"\") called!");
commandQueue.enqueue(command);
dequeue();
}
void Backend::dequeue()
{
if(!busy && commandQueue.isEmpty()) emit isBusy(false);
if(busy) return;
if(commandQueue.isEmpty()) return;
busy = true; emit isBusy(true);
QString command = commandQueue.dequeue();
currentCommand = command;
data.clear();
_process->write(command.append('\004').toLocal8Bit());
}
void Backend::exitBackend()
{
qDebug("Backend::exitBackend() called!");
_process->kill();
_process->waitForFinished();
}
void Backend::processOutput(QString line)
{
qDebug("Backend: input: "+line.toAscii());
if(line.startsWith("<acritoxinstaller "))
{
QString command = line.section(" ",1,1).section(">",0,0);
QString args = line.section(" ",2).trimmed();
if(command == "prompt")
{
busy = false;
qDebug("Backend: finished: "+currentCommand.toAscii());
emit finishedCommand(currentCommand);
dequeue();
}
else if(command == "flag")
{
QString setunset = args.section(" ",0,0);
QString flag = args.section(" ",1).trimmed();
if(setunset == "set")
_flag(flag, true);
else if(setunset == "unset")
_flag(flag, false);
}
else if(command == "data")
{
currentData = args.trimmed();
data[currentData] = "";
}
else if(command == "cfg")
{
_cfg(args.trimmed(), data["value"].trimmed());
}
else if(command == "progress")
{
emit receivedProgress(args.toInt());
}
else
emit receivedCommand(command, args);
}
else
{
data[currentData].append(line);
emit receivedDataLine(currentData, line.trimmed());
qDebug("Backend: data: "+line.toAscii());
}
}
QString Backend::encryptPassword(QString password)
{
unsigned long seed[2];
char salt[] = "$1$........";
char *pwd = password.toAscii().data();
const char *const seedchars =
"./0123456789ABCDEFGHIJKLMNOPQRST"
"UVWXYZabcdefghijklmnopqrstuvwxyz";
int i;
seed[0] = rand(); seed[1] = rand();
for (i = 0; i < 8; i++)
salt[3+i] = seedchars[(seed[i/5] >> (i%5)*6) & 0x3f];
return(QString(crypt(pwd, salt)));
}
// function adapted from amarok 2.0 / App.cpp - (C) 2002 by Mark Kretschmann <markey@web.de>
QString Backend::cleanUsername(const QString &username)
{
QString result = username;
// german umlauts
result.replace( QChar(0x00e4), "ae" ).replace( QChar(0x00c4), "Ae" );
result.replace( QChar(0x00f6), "oe" ).replace( QChar(0x00d6), "Oe" );
result.replace( QChar(0x00fc), "ue" ).replace( QChar(0x00dc), "Ue" );
result.replace( QChar(0x00df), "ss" );
// some strange accents
result.replace( QChar(0x00e7), "c" ).replace( QChar(0x00c7), "C" );
result.replace( QChar(0x00fd), "y" ).replace( QChar(0x00dd), "Y" );
result.replace( QChar(0x00f1), "n" ).replace( QChar(0x00d1), "N" );
// czech letters with carons
result.replace( QChar(0x0161), "s" ).replace( QChar(0x0160), "S" );
result.replace( QChar(0x010d), "c" ).replace( QChar(0x010c), "C" );
result.replace( QChar(0x0159), "r" ).replace( QChar(0x0158), "R" );
result.replace( QChar(0x017e), "z" ).replace( QChar(0x017d), "Z" );
result.replace( QChar(0x0165), "t" ).replace( QChar(0x0164), "T" );
result.replace( QChar(0x0148), "n" ).replace( QChar(0x0147), "N" );
result.replace( QChar(0x010f), "d" ).replace( QChar(0x010e), "D" );
// accented vowels
QChar a[] = { 'a', 0xe0,0xe1,0xe2,0xe3,0xe5, 0 };
QChar A[] = { 'A', 0xc0,0xc1,0xc2,0xc3,0xc5, 0 };
QChar E[] = { 'e', 0xe8,0xe9,0xea,0xeb,0x11a, 0 };
QChar e[] = { 'E', 0xc8,0xc9,0xca,0xcb,0x11b, 0 };
QChar i[] = { 'i', 0xec,0xed,0xee,0xef, 0 };
QChar I[] = { 'I', 0xcc,0xcd,0xce,0xcf, 0 };
QChar o[] = { 'o', 0xf2,0xf3,0xf4,0xf5,0xf8, 0 };
QChar O[] = { 'O', 0xd2,0xd3,0xd4,0xd5,0xd8, 0 };
QChar u[] = { 'u', 0xf9,0xfa,0xfb,0x16e, 0 };
QChar U[] = { 'U', 0xd9,0xda,0xdb,0x16f, 0 };
QChar nul[] = { 0 };
QChar *replacements[] = { a, A, e, E, i, I, o, O, u, U, nul };
for( int i = 0; i < result.length(); i++ )
{
QChar c = result[ i ];
for( uint n = 0; replacements[n][0] != QChar(0); n++ )
{
for( uint k=0; replacements[n][k] != QChar(0); k++ )
{
if( replacements[n][k] == c )
{
c = replacements[n][0];
}
}
}
result[ i ] = c;
}
return result.replace(QRegExp("[^a-zA-Z0-9-_.]"), "");
}
void Backend::slotProcessExited()
{
emit processExited();
}
void Backend::slotReceiveOutput()
{
_process->setReadChannel(QProcess::StandardOutput);
char data[2048]; QString line;
while(_process->canReadLine())
{
int result = _process->readLine(data, sizeof(data));
if(result == -1) break;
line = QString::fromLocal8Bit(data);
processOutput(line);
}
}
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