kgpg

gpgproc.cpp

00001 
00005 /***************************************************************************
00006  *                                                                         *
00007  *   This program is free software; you can redistribute it and/or modify  *
00008  *   it under the terms of the GNU General Public License as published by  *
00009  *   the Free Software Foundation; either version 2 of the License, or     *
00010  *   (at your option) any later version.                                   *
00011  *                                                                         *
00012  ***************************************************************************/
00013 
00014 #include "gpgproc.h"
00015 
00016 #include <ctype.h>
00017 
00018 #include <QTextCodec>
00019 
00020 #include "kgpgsettings.h"
00021 
00022 GPGProc::GPGProc(QObject *parent, const QString &binary)
00023        : KLineBufferedProcess(parent)
00024 {
00025     resetProcess(binary);
00026 }
00027 
00028 GPGProc::~GPGProc()
00029 {
00030 }
00031 
00032 void
00033 GPGProc::resetProcess(const QString &binary)
00034 {
00035     QStringList args;
00036     args << "--no-secmem-warning" << "--no-tty";
00037     if (binary.isEmpty())
00038         setProgram(KGpgSettings::gpgBinaryPath(), args);
00039     else
00040         setProgram(binary, args);
00041     setOutputChannelMode(OnlyStdoutChannel);
00042 
00043     disconnect(SIGNAL(finished(int, QProcess::ExitStatus)));
00044     disconnect(SIGNAL(lineReadyStandardOutput()));
00045 }
00046 
00047 void GPGProc::start()
00048 {
00049     connect(this, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(finished()));
00050     connect(this, SIGNAL(lineReadyStandardOutput()), this, SLOT(received()));
00051     KProcess::start();
00052 }
00053 
00054 void GPGProc::received()
00055 {
00056     emit readReady(this);
00057 }
00058 
00059 void GPGProc::finished()
00060 {
00061     emit processExited(this);
00062 }
00063 
00064 int GPGProc::readln(QString &line, const bool &colons)
00065 {
00066     QByteArray a;
00067     if (!readLineStandardOutput(&a))
00068         return -1;
00069 
00070     line = recode(a, colons);
00071 
00072     return line.length();
00073 }
00074 
00075 int GPGProc::readln(QStringList &l)
00076 {
00077     QString s;
00078 
00079     int len = readln(s);
00080     if (len < 0)
00081         return len;
00082 
00083     l = s.split(':');
00084 
00085     for (int i = 0; i < l.count(); ++i)
00086     {
00087         int j = 0;
00088         while ((j = l[i].indexOf("\\x3a", j, Qt::CaseInsensitive)) >= 0)
00089         {
00090             l[i].replace(j, 4, ':');
00091             j++;
00092         }
00093     }
00094 
00095     return l.count();
00096 }
00097 
00098 QString
00099 GPGProc::recode(QByteArray a, const bool colons)
00100 {
00101     int pos = 0;
00102 
00103     while ((pos = a.indexOf("\\x", pos)) >= 0) {
00104         if (pos > a.length() - 4)
00105             break;
00106 
00107         char c1, c2;
00108         c1 = a[pos + 2];
00109         c2 = a[pos + 3];
00110 
00111         // ':' must be skipped, it is used as colon delimiter
00112         // since it is pure ascii it can be replaced in QString.
00113         if (!colons && (c1 == '3') && ((c2 == 'a') || (c2 == 'A'))) {
00114             pos += 3;
00115             continue;
00116         }
00117 
00118         if (!isxdigit(c1) || !isxdigit(c2))
00119             continue;
00120 
00121         char n[2] = { 0, 0 };
00122 
00123         if (isdigit(c1))
00124             n[0] = c1 - '0';
00125         else
00126             n[0] = tolower(c1) - 'a' + 10;
00127         n[0] *= 16;
00128 
00129         if (isdigit(c2))
00130             n[0] += c2 - '0';
00131         else
00132             n[0] += tolower(c2) - 'a' + 10;
00133 
00134         // it is likely to find the same byte sequence more than once
00135         int npos = pos;
00136         QByteArray pattern = a.mid(pos, 4);
00137         do {
00138             a.replace(npos, 4, n);
00139         } while ((npos = a.indexOf(pattern, npos)) >= 0);
00140     }
00141 
00142     return QTextCodec::codecForName("utf8")->toUnicode(a);
00143 }
00144 
00145 #include "gpgproc.moc"
kgpg

gpgproc.cpp

kgpg

kdeutils
