Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 596 insertions, 0 deletions

diff --git a/kioslave/trash/kio_trash.cpp b/kioslave/trash/kio_trash.cpp
new file mode 100644
index 000000000..7912cbb7c
--- /dev/null
+++ b/kioslave/trash/kio_trash.cpp
@@ -0,0 +1,596 @@
+/* This file is part of the KDE project
+   Copyright (C) 2004 David Faure <faure@kde.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "kio_trash.h"
+#include <kio/job.h>
+
+#include <kapplication.h>
+#include <kdebug.h>
+#include <klocale.h>
+#include <klargefile.h>
+#include <kcmdlineargs.h>
+#include <kmimetype.h>
+#include <kprocess.h>
+
+#include <dcopclient.h>
+#include <qdatastream.h>
+#include <qtextstream.h>
+#include <qfile.h>
+#include <qeventloop.h>
+
+#include <time.h>
+#include <pwd.h>
+#include <grp.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+
+static const KCmdLineOptions options[] =
+{
+    { "+protocol", I18N_NOOP( "Protocol name" ), 0 },
+    { "+pool", I18N_NOOP( "Socket name" ), 0 },
+    { "+app", I18N_NOOP( "Socket name" ), 0 },
+    KCmdLineLastOption
+};
+
+extern "C" {
+    int KDE_EXPORT kdemain( int argc, char **argv )
+    {
+        //KInstance instance( "kio_trash" );
+        // KApplication is necessary to use kio_file
+        putenv(strdup("SESSION_MANAGER="));
+        KApplication::disableAutoDcopRegistration();
+        KCmdLineArgs::init(argc, argv, "kio_trash", 0, 0, 0, 0);
+        KCmdLineArgs::addCmdLineOptions( options );
+        KApplication app( false, false );
+
+        KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
+        TrashProtocol slave( args->arg(0), args->arg(1), args->arg(2) );
+        slave.dispatchLoop();
+        return 0;
+    }
+}
+
+#define INIT_IMPL \
+    if ( !impl.init() ) { \
+        error( impl.lastErrorCode(), impl.lastErrorMessage() ); \
+        return; \
+    }
+
+TrashProtocol::TrashProtocol( const QCString& protocol, const QCString &pool, const QCString &app)
+    : SlaveBase(protocol, pool, app )
+{
+    struct passwd *user = getpwuid( getuid() );
+    if ( user )
+        m_userName = QString::fromLatin1(user->pw_name);
+    struct group *grp = getgrgid( getgid() );
+    if ( grp )
+        m_groupName = QString::fromLatin1(grp->gr_name);
+}
+
+TrashProtocol::~TrashProtocol()
+{
+}
+
+void TrashProtocol::restore( const KURL& trashURL )
+{
+    int trashId;
+    QString fileId, relativePath;
+    bool ok = TrashImpl::parseURL( trashURL, trashId, fileId, relativePath );
+    if ( !ok ) {
+        error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( trashURL.prettyURL() ) );
+        return;
+    }
+    TrashedFileInfo info;
+    ok = impl.infoForFile( trashId, fileId, info );
+    if ( !ok ) {
+        error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        return;
+    }
+    KURL dest;
+    dest.setPath( info.origPath );
+    if ( !relativePath.isEmpty() )
+        dest.addPath( relativePath );
+
+    // Check that the destination directory exists, to improve the error code in case it doesn't.
+    const QString destDir = dest.directory();
+    KDE_struct_stat buff;
+    if ( KDE_lstat( QFile::encodeName( destDir ), &buff ) == -1 ) {
+        error( KIO::ERR_SLAVE_DEFINED,
+               i18n( "The directory %1 does not exist anymore, so it is not possible to restore this item to its original location. "
+                     "You can either recreate that directory and use the restore operation again, or drag the item anywhere else to restore it." ).arg( destDir ) );
+        return;
+    }
+
+    copyOrMove( trashURL, dest, false /*overwrite*/, Move );
+}
+
+void TrashProtocol::rename( const KURL &oldURL, const KURL &newURL, bool overwrite )
+{
+    INIT_IMPL;
+
+    kdDebug()<<"TrashProtocol::rename(): old="<<oldURL<<" new="<<newURL<<" overwrite=" << overwrite<<endl;
+
+    if ( oldURL.protocol() == "trash" && newURL.protocol() == "trash" ) {
+        error( KIO::ERR_CANNOT_RENAME, oldURL.prettyURL() );
+        return;
+    }
+
+    copyOrMove( oldURL, newURL, overwrite, Move );
+}
+
+void TrashProtocol::copy( const KURL &src, const KURL &dest, int /*permissions*/, bool overwrite )
+{
+    INIT_IMPL;
+
+    kdDebug()<<"TrashProtocol::copy(): " << src << " " << dest << endl;
+
+    if ( src.protocol() == "trash" && dest.protocol() == "trash" ) {
+        error( KIO::ERR_UNSUPPORTED_ACTION, i18n( "This file is already in the trash bin." ) );
+        return;
+    }
+
+    copyOrMove( src, dest, overwrite, Copy );
+}
+
+void TrashProtocol::copyOrMove( const KURL &src, const KURL &dest, bool overwrite, CopyOrMove action )
+{
+    if ( src.protocol() == "trash" && dest.isLocalFile() ) {
+        // Extracting (e.g. via dnd). Ignore original location stored in info file.
+        int trashId;
+        QString fileId, relativePath;
+        bool ok = TrashImpl::parseURL( src, trashId, fileId, relativePath );
+        if ( !ok ) {
+            error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( src.prettyURL() ) );
+            return;
+        }
+        const QString destPath = dest.path();
+        if ( QFile::exists( destPath ) ) {
+            if ( overwrite ) {
+                ok = QFile::remove( destPath );
+                Q_ASSERT( ok ); // ### TODO
+            } else {
+                error( KIO::ERR_FILE_ALREADY_EXIST, destPath );
+                return;
+            }
+        }
+
+        if ( action == Move ) {
+            kdDebug() << "calling moveFromTrash(" << destPath << " " << trashId << " " << fileId << ")" << endl;
+            ok = impl.moveFromTrash( destPath, trashId, fileId, relativePath );
+        } else { // Copy
+            kdDebug() << "calling copyFromTrash(" << destPath << " " << trashId << " " << fileId << ")" << endl;
+            ok = impl.copyFromTrash( destPath, trashId, fileId, relativePath );
+        }
+        if ( !ok ) {
+            error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        } else {
+            if ( action == Move && relativePath.isEmpty() )
+                (void)impl.deleteInfo( trashId, fileId );
+            finished();
+        }
+        return;
+    } else if ( src.isLocalFile() && dest.protocol() == "trash" ) {
+        QString dir = dest.directory();
+        //kdDebug() << "trashing a file to " << dir << endl;
+        // Trashing a file
+        // We detect the case where this isn't normal trashing, but
+        // e.g. if kwrite tries to save (moving tempfile over destination)
+        if ( dir.length() <= 1 && src.fileName() == dest.fileName() ) // new toplevel entry
+        {
+            const QString srcPath = src.path();
+            // In theory we should use TrashImpl::parseURL to give the right filename to createInfo,
+            // in case the trash URL didn't contain the same filename as srcPath.
+            // But this can only happen with copyAs/moveAs, not available in the GUI
+            // for the trash (New/... or Rename from iconview/listview).
+            int trashId;
+            QString fileId;
+            if ( !impl.createInfo( srcPath, trashId, fileId ) ) {
+                error( impl.lastErrorCode(), impl.lastErrorMessage() );
+            } else {
+                bool ok;
+                if ( action == Move ) {
+                    kdDebug() << "calling moveToTrash(" << srcPath << " " << trashId << " " << fileId << ")" << endl;
+                    ok = impl.moveToTrash( srcPath, trashId, fileId );
+                } else { // Copy
+                    kdDebug() << "calling copyToTrash(" << srcPath << " " << trashId << " " << fileId << ")" << endl;
+                    ok = impl.copyToTrash( srcPath, trashId, fileId );
+                }
+                if ( !ok ) {
+                    (void)impl.deleteInfo( trashId, fileId );
+                    error( impl.lastErrorCode(), impl.lastErrorMessage() );
+                } else {
+                    // Inform caller of the final URL. Used by konq_undo.
+                    const KURL url = impl.makeURL( trashId, fileId, QString::null );
+                    setMetaData( "trashURL-" + srcPath, url.url() );
+                    finished();
+                }
+            }
+            return;
+        } else {
+            kdDebug() << "returning KIO::ERR_ACCESS_DENIED, it's not allowed to add a file to an existing trash directory" << endl;
+            // It's not allowed to add a file to an existing trash directory.
+            error( KIO::ERR_ACCESS_DENIED, dest.prettyURL() );
+            return;
+        }
+    } else
+        error( KIO::ERR_UNSUPPORTED_ACTION, "should never happen" );
+}
+
+static void addAtom(KIO::UDSEntry& entry, unsigned int ID, long long l, const QString& s = QString::null)
+{
+    KIO::UDSAtom atom;
+    atom.m_uds = ID;
+    atom.m_long = l;
+    atom.m_str = s;
+    entry.append(atom);
+}
+
+void TrashProtocol::createTopLevelDirEntry(KIO::UDSEntry& entry)
+{
+    entry.clear();
+    addAtom(entry, KIO::UDS_NAME, 0, ".");
+    addAtom(entry, KIO::UDS_FILE_TYPE, S_IFDIR);
+    addAtom(entry, KIO::UDS_ACCESS, 0700);
+    addAtom(entry, KIO::UDS_MIME_TYPE, 0, "inode/directory");
+    addAtom(entry, KIO::UDS_USER, 0, m_userName);
+    addAtom(entry, KIO::UDS_GROUP, 0, m_groupName);
+}
+
+void TrashProtocol::stat(const KURL& url)
+{
+    INIT_IMPL;
+    const QString path = url.path();
+    if( path.isEmpty() || path == "/" ) {
+        // The root is "virtual" - it's not a single physical directory
+        KIO::UDSEntry entry;
+        createTopLevelDirEntry( entry );
+        statEntry( entry );
+        finished();
+    } else {
+        int trashId;
+        QString fileId, relativePath;
+
+        bool ok = TrashImpl::parseURL( url, trashId, fileId, relativePath );
+
+        if ( !ok ) {
+            // ######## do we still need this?
+            kdDebug() << k_funcinfo << url << " looks fishy, returning does-not-exist" << endl;
+            // A URL like trash:/file simply means that CopyJob is trying to see if
+            // the destination exists already (it made up the URL by itself).
+            error( KIO::ERR_DOES_NOT_EXIST, url.prettyURL() );
+            //error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( url.prettyURL() ) );
+            return;
+        }
+
+        const QString filePath = impl.physicalPath( trashId, fileId, relativePath );
+        if ( filePath.isEmpty() ) {
+            error( impl.lastErrorCode(), impl.lastErrorMessage() );
+            return;
+        }
+
+        QString fileName = filePath.section('/', -1, -1, QString::SectionSkipEmpty);
+
+        QString fileURL = QString::null;
+        if ( url.path().length() > 1 ) {
+            fileURL = url.url();
+        }
+
+        KIO::UDSEntry entry;
+        TrashedFileInfo info;
+        ok = impl.infoForFile( trashId, fileId, info );
+        if ( ok )
+            ok = createUDSEntry( filePath, fileName, fileURL, entry, info );
+
+        if ( !ok ) {
+            error( KIO::ERR_COULD_NOT_STAT, url.prettyURL() );
+        }
+
+        statEntry( entry );
+        finished();
+    }
+}
+
+void TrashProtocol::del( const KURL &url, bool /*isfile*/ )
+{
+    int trashId;
+    QString fileId, relativePath;
+
+    bool ok = TrashImpl::parseURL( url, trashId, fileId, relativePath );
+    if ( !ok ) {
+        error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( url.prettyURL() ) );
+        return;
+    }
+
+    ok = relativePath.isEmpty();
+    if ( !ok ) {
+        error( KIO::ERR_ACCESS_DENIED, url.prettyURL() );
+        return;
+    }
+
+    ok = impl.del(trashId, fileId);
+    if ( !ok ) {
+        error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        return;
+    }
+
+    finished();
+}
+
+void TrashProtocol::listDir(const KURL& url)
+{
+    INIT_IMPL;
+    kdDebug() << "listdir: " << url << endl;
+    if ( url.path().length() <= 1 ) {
+        listRoot();
+        return;
+    }
+    int trashId;
+    QString fileId;
+    QString relativePath;
+    bool ok = TrashImpl::parseURL( url, trashId, fileId, relativePath );
+    if ( !ok ) {
+        error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( url.prettyURL() ) );
+        return;
+    }
+    //was: const QString physicalPath = impl.physicalPath( trashId, fileId, relativePath );
+
+    // Get info for deleted directory - the date of deletion and orig path will be used
+    // for all the items in it, and we need the physicalPath.
+    TrashedFileInfo info;
+    ok = impl.infoForFile( trashId, fileId, info );
+    if ( !ok || info.physicalPath.isEmpty() ) {
+        error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        return;
+    }
+    if ( !relativePath.isEmpty() ) {
+        info.physicalPath += "/";
+        info.physicalPath += relativePath;
+    }
+
+    // List subdir. Can't use kio_file here since we provide our own info...
+    kdDebug() << k_funcinfo << "listing " << info.physicalPath << endl;
+    QStrList entryNames = impl.listDir( info.physicalPath );
+    totalSize( entryNames.count() );
+    KIO::UDSEntry entry;
+    QStrListIterator entryIt( entryNames );
+    for (; entryIt.current(); ++entryIt) {
+        QString fileName = QFile::decodeName( entryIt.current() );
+        if ( fileName == ".." )
+            continue;
+        const QString filePath = info.physicalPath + "/" + fileName;
+        // shouldn't be necessary
+        //const QString url = TrashImpl::makeURL( trashId, fileId, relativePath + "/" + fileName );
+        entry.clear();
+        TrashedFileInfo infoForItem( info );
+        infoForItem.origPath += '/';
+        infoForItem.origPath += fileName;
+        if ( ok && createUDSEntry( filePath, fileName, QString::null /*url*/, entry, infoForItem ) ) {
+            listEntry( entry, false );
+        }
+    }
+    entry.clear();
+    listEntry( entry, true );
+    finished();
+}
+
+bool TrashProtocol::createUDSEntry( const QString& physicalPath, const QString& fileName, const QString& url, KIO::UDSEntry& entry, const TrashedFileInfo& info )
+{
+    QCString physicalPath_c = QFile::encodeName( physicalPath );
+    KDE_struct_stat buff;
+    if ( KDE_lstat( physicalPath_c, &buff ) == -1 ) {
+        kdWarning() << "couldn't stat " << physicalPath << endl;
+        return false;
+    }
+    if (S_ISLNK(buff.st_mode)) {
+        char buffer2[ 1000 ];
+        int n = readlink( physicalPath_c, buffer2, 1000 );
+        if ( n != -1 ) {
+            buffer2[ n ] = 0;
+        }
+
+        addAtom( entry, KIO::UDS_LINK_DEST, 0, QFile::decodeName( buffer2 ) );
+        // Follow symlink
+        // That makes sense in kio_file, but not in the trash, especially for the size
+        // #136876
+#if 0
+        if ( KDE_stat( physicalPath_c, &buff ) == -1 ) {
+            // It is a link pointing to nowhere
+            buff.st_mode = S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO;
+            buff.st_mtime = 0;
+            buff.st_atime = 0;
+            buff.st_size = 0;
+        }
+#endif
+    }
+    mode_t type = buff.st_mode & S_IFMT; // extract file type
+    mode_t access = buff.st_mode & 07777; // extract permissions
+    access &= 07555; // make it readonly, since it's in the trashcan
+    addAtom( entry, KIO::UDS_NAME, 0, fileName );
+    addAtom( entry, KIO::UDS_FILE_TYPE, type );
+    if ( !url.isEmpty() )
+        addAtom( entry, KIO::UDS_URL, 0, url );
+
+    KMimeType::Ptr mt = KMimeType::findByPath( physicalPath, buff.st_mode );
+    addAtom( entry, KIO::UDS_MIME_TYPE, 0, mt->name() );
+    addAtom( entry, KIO::UDS_ACCESS, access );
+    addAtom( entry, KIO::UDS_SIZE, buff.st_size );
+    addAtom( entry, KIO::UDS_USER, 0, m_userName ); // assumption
+    addAtom( entry, KIO::UDS_GROUP, 0, m_groupName ); // assumption
+    addAtom( entry, KIO::UDS_MODIFICATION_TIME, buff.st_mtime );
+    addAtom( entry, KIO::UDS_ACCESS_TIME, buff.st_atime ); // ## or use it for deletion time?
+    addAtom( entry, KIO::UDS_EXTRA, 0, info.origPath );
+    addAtom( entry, KIO::UDS_EXTRA, 0, info.deletionDate.toString( Qt::ISODate ) );
+    return true;
+}
+
+void TrashProtocol::listRoot()
+{
+    INIT_IMPL;
+    const TrashedFileInfoList lst = impl.list();
+    totalSize( lst.count() );
+    KIO::UDSEntry entry;
+    createTopLevelDirEntry( entry );
+    listEntry( entry, false );
+    for ( TrashedFileInfoList::ConstIterator it = lst.begin(); it != lst.end(); ++it ) {
+        const KURL url = TrashImpl::makeURL( (*it).trashId, (*it).fileId, QString::null );
+        KURL origURL;
+        origURL.setPath( (*it).origPath );
+        entry.clear();
+        if ( createUDSEntry( (*it).physicalPath, origURL.fileName(), url.url(), entry, *it ) )
+            listEntry( entry, false );
+    }
+    entry.clear();
+    listEntry( entry, true );
+    finished();
+}
+
+void TrashProtocol::special( const QByteArray & data )
+{
+    INIT_IMPL;
+    QDataStream stream( data, IO_ReadOnly );
+    int cmd;
+    stream >> cmd;
+
+    switch (cmd) {
+    case 1:
+        if ( impl.emptyTrash() )
+            finished();
+        else
+            error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        break;
+    case 2:
+        impl.migrateOldTrash();
+        finished();
+        break;
+    case 3:
+    {
+        KURL url;
+        stream >> url;
+        restore( url );
+        break;
+    }
+    default:
+        kdWarning(7116) << "Unknown command in special(): " << cmd << endl;
+        error( KIO::ERR_UNSUPPORTED_ACTION, QString::number(cmd) );
+        break;
+    }
+}
+
+void TrashProtocol::put( const KURL& url, int /*permissions*/, bool /*overwrite*/, bool /*resume*/ )
+{
+    INIT_IMPL;
+    kdDebug() << "put: " << url << endl;
+    // create deleted file. We need to get the mtime and original location from metadata...
+    // Maybe we can find the info file for url.fileName(), in case ::rename() was called first, and failed...
+    error( KIO::ERR_ACCESS_DENIED, url.prettyURL() );
+}
+
+void TrashProtocol::get( const KURL& url )
+{
+    INIT_IMPL;
+    kdDebug() << "get() : " << url << endl;
+    if ( !url.isValid() ) {
+        kdDebug() << kdBacktrace() << endl;
+        error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( url.url() ) );
+        return;
+    }
+    if ( url.path().length() <= 1 ) {
+        error( KIO::ERR_IS_DIRECTORY, url.prettyURL() );
+        return;
+    }
+    int trashId;
+    QString fileId;
+    QString relativePath;
+    bool ok = TrashImpl::parseURL( url, trashId, fileId, relativePath );
+    if ( !ok ) {
+        error( KIO::ERR_SLAVE_DEFINED, i18n( "Malformed URL %1" ).arg( url.prettyURL() ) );
+        return;
+    }
+    const QString physicalPath = impl.physicalPath( trashId, fileId, relativePath );
+    if ( physicalPath.isEmpty() ) {
+        error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        return;
+    }
+
+    // Usually we run jobs in TrashImpl (for e.g. future kdedmodule)
+    // But for this one we wouldn't use DCOP for every bit of data...
+    KURL fileURL;
+    fileURL.setPath( physicalPath );
+    KIO::Job* job = KIO::get( fileURL );
+    connect( job, SIGNAL( data( KIO::Job*, const QByteArray& ) ),
+             this, SLOT( slotData( KIO::Job*, const QByteArray& ) ) );
+    connect( job, SIGNAL( mimetype( KIO::Job*, const QString& ) ),
+             this, SLOT( slotMimetype( KIO::Job*, const QString& ) ) );
+    connect( job, SIGNAL( result(KIO::Job *) ),
+             this, SLOT( jobFinished(KIO::Job *) ) );
+    qApp->eventLoop()->enterLoop();
+}
+
+void TrashProtocol::slotData( KIO::Job*, const QByteArray&arr )
+{
+    data( arr );
+}
+
+void TrashProtocol::slotMimetype( KIO::Job*, const QString& mt )
+{
+    mimeType( mt );
+}
+
+void TrashProtocol::jobFinished( KIO::Job* job )
+{
+    if ( job->error() )
+        error( job->error(), job->errorText() );
+    else
+        finished();
+    qApp->eventLoop()->exitLoop();
+}
+
+#if 0
+void TrashProtocol::mkdir( const KURL& url, int /*permissions*/ )
+{
+    INIT_IMPL;
+    // create info about deleted dir
+    // ############ Problem: we don't know the original path.
+    // Let's try to avoid this case (we should get to copy() instead, for local files)
+    kdDebug() << "mkdir: " << url << endl;
+    QString dir = url.directory();
+
+    if ( dir.length() <= 1 ) // new toplevel entry
+    {
+        // ## we should use TrashImpl::parseURL to give the right filename to createInfo
+        int trashId;
+        QString fileId;
+        if ( !impl.createInfo( url.path(), trashId, fileId ) ) {
+            error( impl.lastErrorCode(), impl.lastErrorMessage() );
+        } else {
+            if ( !impl.mkdir( trashId, fileId, permissions ) ) {
+                (void)impl.deleteInfo( trashId, fileId );
+                error( impl.lastErrorCode(), impl.lastErrorMessage() );
+            } else
+                finished();
+        }
+    } else {
+        // Well it's not allowed to add a directory to an existing deleted directory.
+        error( KIO::ERR_ACCESS_DENIED, url.prettyURL() );
+    }
+}
+#endif
+
+#include "kio_trash.moc"