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 #include <QFile>
00020 
00021 //#include <KDebug>
00022 
00023 #include "kgpgsettings.h"
00024 
00025 class GPGProcPrivate
00026 {
00027 public:
00028     GPGProcPrivate() : codec(QTextCodec::codecForName("utf8"))
00029     {
00030     }
00031 
00032     QTextCodec *codec;
00033     QByteArray recvbuffer;
00034 };
00035 
00036 GPGProc::GPGProc(QObject *parent)
00037        : KProcess(parent), d(new GPGProcPrivate())
00038 {
00039     QStringList args;
00040     args << "--no-secmem-warning" << "--no-tty" << "--with-colons";
00041     setProgram(KGpgSettings::gpgBinaryPath(), args);
00042     setOutputChannelMode(OnlyStdoutChannel);
00043 }
00044 
00045 GPGProc::~GPGProc()
00046 {
00047     delete d;
00048 }
00049 
00050 void GPGProc::start()
00051 {
00052     connect(this, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(finished()));
00053     connect(this, SIGNAL(readyReadStandardOutput()), this, SLOT(received()));
00054     KProcess::start();
00055 }
00056 
00057 void GPGProc::received()
00058 {
00059     d->recvbuffer.append(readAllStandardOutput());
00060     if (d->recvbuffer.indexOf('\n') >= 0)
00061         emit readReady(this);
00062 }
00063 
00064 void GPGProc::finished()
00065 {
00066     emit processExited(this);
00067 }
00068 
00069 int GPGProc::readln(QString &line)
00070 {
00071     int len = d->recvbuffer.indexOf('\n');
00072     if (len < 0)
00073         return -1;
00074 
00075     // don't copy '\n'
00076     QByteArray a = d->recvbuffer.mid(0, len);
00077     d->recvbuffer.remove(0, len + 1);
00078 
00079     int pos = 0;
00080 
00081     while ((pos = a.indexOf("\\x", pos)) >= 0)
00082     {
00083         if (pos > a.length() - 4)
00084             break;
00085 
00086         char c1, c2;
00087         c1 = a[pos + 2];
00088         c2 = a[pos + 3];
00089 
00090         // ':' must be skipped, it is used as colon delimiter
00091         // since it is pure ascii it can be replaced in QString.
00092         if ((c1 == '3') && ((c2 == 'a') || (c2 == 'A')))
00093         {
00094             pos += 3;
00095             continue;
00096         }
00097 
00098         if (!isxdigit(c1) || !isxdigit(c2))
00099             continue;
00100 
00101         char n[2] = { 0, 0 };
00102 
00103         if (isdigit(c1))
00104             n[0] = c1 - '0';
00105         else
00106             n[0] = tolower(c1) - 'a' + 10;
00107         n[0] *= 16;
00108 
00109         if (isdigit(c2))
00110             n[0] += c2 - '0';
00111         else
00112             n[0] += tolower(c2) - 'a' + 10;
00113 
00114         // it is likely to find the same byte sequence more than once
00115         int npos = pos;
00116         QByteArray pattern = a.mid(pos, 4);
00117         do
00118         {
00119             a.replace(npos, 4, n);
00120         } while ((npos = a.indexOf(pattern, npos)) >= 0);
00121     }
00122 
00123     line = d->codec->toUnicode(a);
00124 
00125     return line.length();
00126 }
00127 
00128 int GPGProc::readln(QStringList &l)
00129 {
00130     QString s;
00131 
00132     int len = readln(s);
00133     if (len < 0)
00134         return len;
00135 
00136     l = s.split(':');
00137 
00138     for (int i = 0; i < l.count(); ++i)
00139     {
00140         int j = 0;
00141         while ((j = l[i].indexOf("\\x3a", j, Qt::CaseInsensitive)) >= 0)
00142         {
00143             l[i].replace(j, 4, ':');
00144             j++;
00145         }
00146     }
00147 
00148     return l.count();
00149 }
00150 
00151 #include "gpgproc.moc"
kgpg

gpgproc.cpp

kgpg

kdeutils
