diff options
Diffstat (limited to 'certmanager/lib/backends/qgpgme/gnupgprocessbase.cpp')
| -rw-r--r-- | certmanager/lib/backends/qgpgme/gnupgprocessbase.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/certmanager/lib/backends/qgpgme/gnupgprocessbase.cpp b/certmanager/lib/backends/qgpgme/gnupgprocessbase.cpp new file mode 100644 index 000000000..2d3ca7409 --- /dev/null +++ b/certmanager/lib/backends/qgpgme/gnupgprocessbase.cpp @@ -0,0 +1,198 @@ +/* + gnupgprocessbase.cpp + + This file is part of libkleopatra, the KDE keymanagement library + Copyright (c) 2004 Klarälvdalens Datakonsult AB + + Libkleopatra 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. + + Libkleopatra 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 + + In addition, as a special exception, the copyright holders give + permission to link the code of this program with any edition of + the Qt library by Trolltech AS, Norway (or with modified versions + of Qt that use the same license as Qt), and distribute linked + combinations including the two. You must obey the GNU General + Public License in all respects for all of the code used other than + Qt. If you modify this file, you may extend this exception to + your version of the file, but you are not obligated to do so. If + you do not wish to do so, delete this exception statement from + your version. +*/ + +#include "gnupgprocessbase.h" + +#include <kdebug.h> +#include <kurl.h> + +#include <qsocketnotifier.h> +#include <qtextcodec.h> +#include <qstringlist.h> + +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <assert.h> + +struct Kleo::GnuPGProcessBase::Private { + Private() : useStatusFD( false ), statnot( 0 ) { + statusFD[0] = statusFD[1] = -1; + } + + bool useStatusFD; + int statusFD[2]; + QSocketNotifier * statnot; + QCString statusBuffer; +}; + + +Kleo::GnuPGProcessBase::GnuPGProcessBase( QObject * parent, const char * name ) + : KProcess( parent, name ) +{ + d = new Private(); +} + +Kleo::GnuPGProcessBase::~GnuPGProcessBase() { + delete d; d = 0; +} + +void Kleo::GnuPGProcessBase::setUseStatusFD( bool use ) { + assert( d ); + d->useStatusFD = use; +} + +bool Kleo::GnuPGProcessBase::start( RunMode runmode, Communication comm ) { + if ( d->useStatusFD ) { + // set up the status-fd. This should be in setupCommunication(), + // but then it's too late: we need the fd of the pipe to pass it + // as argument to the --status-fd option: + // PENDING(marc) find out why KProcess uses both pipe() and socketpair()... + if ( ::pipe( d->statusFD ) < 0 ) { + kdDebug( 5150 ) << "Kleo::GnuPGProcessBase::start: pipe(2) failed: " << perror << endl; + return false; + } + ::fcntl( d->statusFD[0], F_SETFD, FD_CLOEXEC ); + ::fcntl( d->statusFD[1], F_SETFD, FD_CLOEXEC ); + if ( !arguments.empty() ) { + QValueList<QCString>::iterator it = arguments.begin(); + ++it; + arguments.insert( it, "--status-fd" ); + char buf[25]; + sprintf( buf, "%d", d->statusFD[1] ); + arguments.insert( it, buf ); + arguments.insert( it, "--no-tty" ); + //arguments.insert( it, "--enable-progress-filter" ); // gpgsm doesn't know this + } + } + return KProcess::start( runmode, comm ); +} + +int Kleo::GnuPGProcessBase::setupCommunication( Communication comm ) { + if ( int ok = KProcess::setupCommunication( comm ) ) + return ok; + if ( d->useStatusFD ) { + // base class impl returned error, so close our fd's, too + ::close( d->statusFD[0] ); + ::close( d->statusFD[1] ); + d->statusFD[0] = d->statusFD[1] = -1; + } + return 0; // Error +} + +int Kleo::GnuPGProcessBase::commSetupDoneP() { + if ( d->useStatusFD ) { + ::close( d->statusFD[1] ); // close the input end of the pipe, we're the reader + d->statnot = new QSocketNotifier( d->statusFD[0], QSocketNotifier::Read, this ); + connect( d->statnot, SIGNAL(activated(int)), SLOT(slotChildStatus(int)) ); + } + return KProcess::commSetupDoneP(); +} + +int Kleo::GnuPGProcessBase::commSetupDoneC() { + if ( d->useStatusFD ) + ::fcntl( d->statusFD[1], F_SETFD, 0 ); + return KProcess::commSetupDoneC(); +} + +void Kleo::GnuPGProcessBase::slotChildStatus( int fd ) { + if ( !childStatus(fd) ) + closeStatus(); +} + +bool Kleo::GnuPGProcessBase::closeStatus() { + if ( !d->useStatusFD ) + return false; + d->useStatusFD = false; + delete d->statnot; d->statnot = 0; + ::close( d->statusFD[0] ); d->statusFD[0] = -1; + return true; +} + +int Kleo::GnuPGProcessBase::childStatus( int fd ) { + char buf[1024]; + const int len = ::read( fd, buf, sizeof(buf)-1 ); + if ( len > 0 ) { + buf[len] = 0; + d->statusBuffer += buf; + parseStatusOutput(); + } + return len; +} + +static QString fromHexEscapedUtf8( const QCString & str ) { + return KURL::decode_string( str.data(), 106 /* utf-8 */ ); +} + +void Kleo::GnuPGProcessBase::parseStatusOutput() { + static const char startToken[] = "[GNUPG:] "; + static const int startTokenLen = sizeof startToken / sizeof *startToken - 1; + + int lineStart = 0; + for ( int lineEnd = d->statusBuffer.find( '\n' ) ; lineEnd >= 0 ; lineEnd = d->statusBuffer.find( '\n', lineStart = lineEnd+1 ) ) { + // get next line: + const QCString line = d->statusBuffer.mid( lineStart, lineEnd - lineStart ).stripWhiteSpace(); + if ( line.isEmpty() ) + continue; + // check status token + if ( line.left( startTokenLen ) != startToken ) { + kdDebug( 5150 ) << "Kleo::GnuPGProcessBase::childStatus: status-fd protocol error: line doesn't begin with \"" + << startToken << "\"" << endl; + continue; + } + // remove status token: + const QCString command = line.mid( startTokenLen ).simplifyWhiteSpace() + ' '; + if ( command == " " ) { + kdDebug( 5150 ) << "Kleo::GnuPGProcessBase::childStatus: status-fd protocol error: line without content." << endl; + continue; + } + // split into base and args + QString cmd; + QStringList args; + int tagStart = 0; + for ( int tagEnd = command.find( ' ' ) ; tagEnd >= 0 ; tagEnd = command.find( ' ', tagStart = tagEnd+1 ) ) { + const QCString tag = command.mid( tagStart, tagEnd - tagStart ); + if ( cmd.isNull() ) + cmd = fromHexEscapedUtf8( tag ); + else + args.push_back( fromHexEscapedUtf8( tag ) ); + } + emit status( this, cmd, args ); + } + d->statusBuffer = d->statusBuffer.mid( lineStart ); +} + +void Kleo::GnuPGProcessBase::virtual_hook( int id, void * data ) { + KProcess::virtual_hook( id, data ); +} + +#include "gnupgprocessbase.moc" |