Mailinglist Archive: zypp-commit (223 mails)

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[zypp-commit] r10628 - /trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc
  • From: gfarrasb@xxxxxxxxxxxxxxxx
  • Date: Mon, 21 Jul 2008 19:00:09 -0000
  • Message-id: <20080721190009.F0A202A118@xxxxxxxxxxxxxxxx>
Author: gfarrasb
Date: Mon Jul 21 21:00:09 2008
New Revision: 10628

URL: http://svn.opensuse.org/viewcvs/zypp?rev=10628&view=rev
Log:
Modified MediaAccess to use MediaAria2c

Added:
trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc

Added: trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc
URL:
http://svn.opensuse.org/viewcvs/zypp/trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc?rev=10628&view=auto
==============================================================================
--- trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc (added)
+++ trunk/libzypp/devel/devel.gfarrasb/MediaHandler.cc Mon Jul 21 21:00:09 2008
@@ -0,0 +1,1400 @@
+/*---------------------------------------------------------------------\
+| ____ _ __ __ ___ |
+| |__ / \ / / . \ . \ |
+| / / \ V /| _/ _/ |
+| / /__ | | | | | | |
+| /_____||_| |_| |_| |
+| |
+\---------------------------------------------------------------------*/
+/** \file zypp/media/MediaHandler.cc
+ *
+*/
+
+#include <iostream>
+#include <fstream>
+#include <sstream>
+
+#include "zypp/TmpPath.h"
+#include "zypp/base/Logger.h"
+#include "zypp/base/String.h"
+#include "zypp/media/MediaHandler.h"
+#include "zypp/media/MediaManager.h"
+#include "zypp/media/Mount.h"
+#include <limits.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+using namespace std;
+
+// use directory.yast on every media (not just via ftp/http)
+#define NONREMOTE_DIRECTORY_YAST 1
+
+namespace zypp {
+ namespace media {
+
+ Pathname MediaHandler::_attachPrefix("");
+
+///////////////////////////////////////////////////////////////////
+//
+// CLASS NAME : MediaHandler
+//
+///////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::MediaHandler
+// METHOD TYPE : Constructor
+//
+// DESCRIPTION :
+//
+MediaHandler::MediaHandler ( const Url & url_r,
+ const Pathname & attach_point_r,
+ const Pathname & urlpath_below_attachpoint_r,
+ const bool does_download_r )
+ : _mediaSource()
+ , _attachPoint( new AttachPoint())
+ , _AttachPointHint()
+ , _relativeRoot( urlpath_below_attachpoint_r)
+ , _does_download( does_download_r )
+ , _attach_mtime(0)
+ , _url( url_r )
+ , _parentId(0)
+{
+ Pathname real_attach_point( getRealPath(attach_point_r.asString()));
+
+ if ( !real_attach_point.empty() ) {
+ ///////////////////////////////////////////////////////////////////
+ // check if provided attachpoint is usable.
+ ///////////////////////////////////////////////////////////////////
+
+ PathInfo adir( real_attach_point );
+ //
+ // The verify if attach_point_r isn't a mountpoint of another
+ // device is done in the particular media handler (if needed).
+ //
+ // We just verify, if attach_point_r is a directory and for
+ // schemes other than "file" and "dir", if it is absolute.
+ //
+ if ( !adir.isDir()
+ || (_url.getScheme() != "file"
+ && _url.getScheme() != "dir"
+ && !real_attach_point.absolute()) )
+ {
+ ERR << "Provided attach point is not a absolute directory: "
+ << adir << endl;
+ }
+ else {
+ attachPointHint( real_attach_point, false);
+ setAttachPoint( real_attach_point, false);
+ }
+ }
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::~MediaHandler
+// METHOD TYPE : Destructor
+//
+// DESCRIPTION :
+//
+MediaHandler::~MediaHandler()
+{
+ try
+ {
+ removeAttachPoint();
+ }
+ catch(...) {}
+}
+
+void
+MediaHandler::resetParentId()
+{
+ _parentId = 0;
+}
+
+std::string
+MediaHandler::getRealPath(const std::string &path)
+{
+ std::string real;
+ if( !path.empty())
+ {
+#if __GNUC__ > 2
+ /** GNU extension */
+ char *ptr = ::realpath(path.c_str(), NULL);
+ if( ptr != NULL)
+ {
+ real = ptr;
+ free( ptr);
+ }
+ else
+ /** the SUSv2 way */
+ if( EINVAL == errno)
+ {
+ char buff[PATH_MAX + 2];
+ memset(buff, '\0', sizeof(buff));
+ if( ::realpath(path.c_str(), buff) != NULL)
+ {
+ real = buff;
+ }
+ }
+#else
+ char buff[PATH_MAX + 2];
+ memset(buff, '\0', sizeof(buff));
+ if( ::realpath(path.c_str(), buff) != NULL)
+ {
+ real = buff;
+ }
+#endif
+ }
+ return real;
+}
+
+zypp::Pathname
+MediaHandler::getRealPath(const Pathname &path)
+{
+ return zypp::Pathname(getRealPath(path.asString()));
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::removeAttachPoint
+// METHOD TYPE : void
+//
+// DESCRIPTION :
+//
+void
+MediaHandler::removeAttachPoint()
+{
+ if ( _mediaSource ) {
+ INT << "MediaHandler deleted with media attached." << endl;
+ return; // no cleanup if media still mounted!
+ }
+
+ DBG << "MediaHandler - checking if to remove attach point" << endl;
+ if ( _attachPoint.unique() &&
+ _attachPoint->temp &&
+ !_attachPoint->path.empty() &&
+ PathInfo(_attachPoint->path).isDir())
+ {
+ Pathname path(_attachPoint->path);
+
+ setAttachPoint("", true);
+
+ int res = recursive_rmdir( path );
+ if ( res == 0 ) {
+ MIL << "Deleted default attach point " << path << endl;
+ } else {
+ ERR << "Failed to Delete default attach point " << path
+ << " errno(" << res << ")" << endl;
+ }
+ }
+ else
+ {
+ if( !_attachPoint->path.empty() && !_attachPoint->temp)
+ DBG << "MediaHandler - attachpoint is not temporary" << endl;
+ }
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachPoint
+// METHOD TYPE : Pathname
+//
+// DESCRIPTION :
+//
+Pathname
+MediaHandler::attachPoint() const
+{
+ return _attachPoint->path;
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachPoint
+// METHOD TYPE :
+//
+// DESCRIPTION :
+//
+void
+MediaHandler::setAttachPoint(const Pathname &path, bool temporary)
+{
+ _attachPoint.reset( new AttachPoint(path, temporary));
+}
+
+Pathname
+MediaHandler::localRoot() const
+{
+ if( _attachPoint->path.empty())
+ return Pathname();
+ else
+ return _attachPoint->path + _relativeRoot;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachPoint
+// METHOD TYPE :
+//
+// DESCRIPTION :
+//
+void
+MediaHandler::setAttachPoint(const AttachPointRef &ref)
+{
+ if( ref)
+ AttachPointRef(ref).swap(_attachPoint);
+ else
+ _attachPoint.reset( new AttachPoint());
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachPointHint
+// METHOD TYPE : void
+//
+// DESCRIPTION :
+//
+void
+MediaHandler::attachPointHint(const Pathname &path, bool temporary)
+{
+ _AttachPointHint.path = path;
+ _AttachPointHint.temp = temporary;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachPointHint
+// METHOD TYPE : AttachPoint
+//
+// DESCRIPTION :
+//
+AttachPoint
+MediaHandler::attachPointHint() const
+{
+ return _AttachPointHint;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::findAttachedMedia
+// METHOD TYPE : AttachedMedia
+//
+// DESCRIPTION :
+//
+AttachedMedia
+MediaHandler::findAttachedMedia(const MediaSourceRef &media) const
+{
+ return MediaManager().findAttachedMedia(media);
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::setAttachPrefix
+// METHOD TYPE : void
+//
+// DESCRIPTION :
+//
+bool
+MediaHandler::setAttachPrefix(const Pathname &attach_prefix)
+{
+ if( attach_prefix.empty())
+ {
+ MIL << "Reseting to built-in attach point prefixes."
+ << std::endl;
+ MediaHandler::_attachPrefix = attach_prefix;
+ return true;
+ }
+ else
+ if( MediaHandler::checkAttachPoint(attach_prefix, false, true))
+ {
+ MIL << "Setting user defined attach point prefix: "
+ << attach_prefix << std::endl;
+ MediaHandler::_attachPrefix = attach_prefix;
+ return true;
+ }
+ return false;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attach
+// METHOD TYPE : Pathname
+//
+// DESCRIPTION :
+//
+Pathname
+MediaHandler::createAttachPoint() const
+{
+ /////////////////////////////////////////////////////////////////
+ // provide a default (temporary) attachpoint
+ /////////////////////////////////////////////////////////////////
+ const char * defmounts[] = {
+ "/var/adm/mount", filesystem::TmpPath::defaultLocation().c_str(),
/**/NULL/**/
+ };
+
+ Pathname apoint;
+ Pathname aroot( MediaHandler::_attachPrefix);
+
+ if( !aroot.empty())
+ {
+ apoint = createAttachPoint(aroot);
+ }
+ for ( const char ** def = defmounts; *def && apoint.empty(); ++def ) {
+ aroot = *def;
+ if( aroot.empty())
+ continue;
+
+ apoint = createAttachPoint(aroot);
+ }
+
+ if ( aroot.empty() ) {
+ ERR << "Create attach point: Can't find a writable directory to create an
attach point" << std::endl;
+ return aroot;
+ }
+
+ if ( !apoint.empty() ) {
+ MIL << "Created default attach point " << apoint << std::endl;
+ }
+ return apoint;
+}
+
+Pathname
+MediaHandler::createAttachPoint(const Pathname &attach_root) const
+{
+ Pathname apoint;
+
+ if( attach_root.empty() || !attach_root.absolute()) {
+ ERR << "Create attach point: invalid attach root: '"
+ << attach_root << "'" << std::endl;
+ return apoint;
+ }
+
+ PathInfo adir( attach_root);
+ if( !adir.isDir() || (getuid() != 0 && !adir.userMayRWX())) {
+ DBG << "Create attach point: attach root is not a writable directory: '"
+ << attach_root << "'" << std::endl;
+ return apoint;
+ }
+
+ DBG << "Trying to create attach point in " << attach_root << std::endl;
+
+ //
+ // FIXME: use mkdtemp?
+ //
+#warning Use class TmpDir from TmpPath.h
+ Pathname abase( attach_root + "AP_" );
+ // ma and sh need more than 42 for debugging :-)
+ // since the readonly fs are handled now, ...
+ for ( unsigned i = 1; i < 1000; ++i ) {
+ adir( Pathname::extend( abase, str::hexstring( i ) ) );
+ if ( ! adir.isExist() ) {
+ int err = mkdir( adir.path() );
+ if (err == 0 ) {
+ apoint = getRealPath(adir.asString());
+ if( apoint.empty())
+ {
+ ERR << "Unable to resolve a real path for "
+ << adir.path() << std::endl;
+ rmdir(adir.path());
+ }
+ break;
+ }
+ else
+ if (err != EEXIST) // readonly fs or other, dont try further
+ break;
+ }
+ }
+
+ if ( apoint.empty()) {
+ ERR << "Unable to create an attach point below of "
+ << attach_root << std::endl;
+ }
+ return apoint;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::isUseableAttachPoint
+// METHOD TYPE : bool
+//
+// DESCRIPTION :
+//
+bool
+MediaHandler::isUseableAttachPoint(const Pathname &path, bool mtab) const
+{
+ MediaManager manager;
+ return manager.isUseableAttachPoint(path, mtab);
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::setMediaSource
+// METHOD TYPE : void
+//
+// DESCRIPTION :
+//
+void
+MediaHandler::setMediaSource(const MediaSourceRef &ref)
+{
+ _mediaSource.reset();
+ if( ref && !ref->type.empty() && !ref->name.empty())
+ _mediaSource = ref;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attachedMedia
+// METHOD TYPE : AttachedMedia
+//
+// DESCRIPTION :
+//
+AttachedMedia
+MediaHandler::attachedMedia() const
+{
+ if ( _mediaSource && _attachPoint)
+ return AttachedMedia(_mediaSource, _attachPoint);
+ else
+ return AttachedMedia();
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::isSharedMedia
+// METHOD TYPE : bool
+//
+// DESCRIPTION :
+//
+bool
+MediaHandler::isSharedMedia() const
+{
+ return !_mediaSource.unique();
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::checkAttached
+// METHOD TYPE : bool
+//
+// DESCRIPTION :
+//
+bool
+MediaHandler::checkAttached(bool matchMountFs) const
+{
+ bool _isAttached = false;
+
+ AttachedMedia ref( attachedMedia());
+ if( ref.mediaSource)
+ {
+ time_t old_mtime = _attach_mtime;
+ _attach_mtime = MediaManager::getMountTableMTime();
+ if( !(old_mtime <= 0 || _attach_mtime != old_mtime))
+ {
+ // OK, skip the check (we've seen it at least once)
+ _isAttached = true;
+ }
+ else
+ {
+ if( old_mtime > 0)
+ DBG << "Mount table changed - rereading it" << std::endl;
+ else
+ DBG << "Forced check of the mount table" << std::endl;
+
+ MountEntries entries( MediaManager::getMountEntries());
+ MountEntries::const_iterator e;
+ for( e = entries.begin(); e != entries.end(); ++e)
+ {
+ bool is_device = false;
+ std::string dev_path(Pathname(e->src).asString());
+ PathInfo dev_info;
+
+ if( dev_path.compare(0, sizeof("/dev/")-1, "/dev/") == 0 &&
+ dev_info(e->src) && dev_info.isBlk())
+ {
+ is_device = true;
+ }
+
+ if( is_device && (ref.mediaSource->maj_nr &&
+ ref.mediaSource->bdir.empty()))
+ {
+ std::string mtype(matchMountFs ? e->type : ref.mediaSource->type);
+ MediaSource media(mtype, e->src, dev_info.major(), dev_info.minor());
+
+ if( ref.mediaSource->equals( media) &&
+ ref.attachPoint->path == Pathname(e->dir))
+ {
+ DBG << "Found media device "
+ << ref.mediaSource->asString()
+ << " in the mount table as " << e->src << std::endl;
+ _isAttached = true;
+ break;
+ }
+ // differs
+ }
+ else
+ if(!is_device && (!ref.mediaSource->maj_nr ||
+ !ref.mediaSource->bdir.empty()))
+ {
+ std::string mtype(matchMountFs ? e->type : ref.mediaSource->type);
+ if( ref.mediaSource->bdir.empty())
+ {
+ MediaSource media(mtype, e->src);
+
+ if( ref.mediaSource->equals( media) &&
+ ref.attachPoint->path == Pathname(e->dir))
+ {
+ DBG << "Found media name "
+ << ref.mediaSource->asString()
+ << " in the mount table as " << e->src << std::endl;
+ _isAttached = true;
+ break;
+ }
+ }
+ else
+ {
+ if(ref.mediaSource->bdir == e->src &&
+ ref.attachPoint->path == Pathname(e->dir))
+ {
+ DBG << "Found bound media "
+ << ref.mediaSource->asString()
+ << " in the mount table as " << e->src << std::endl;
+ _isAttached = true;
+ break;
+ }
+ }
+ // differs
+ }
+ }
+
+ if( !_isAttached)
+ {
+ if( entries.empty())
+ {
+ ERR << "Unable to find any entry in the /etc/mtab file" << std::endl;
+ }
+ else
+ {
+ MountEntries::const_iterator e;
+ for( e = entries.begin(); e != entries.end(); ++e)
+ {
+ XXX << "mount entry: " << e->src << " on " << e->dir
+ << " type " << e->type << "(" << e->opts << ")" << endl;
+ }
+ }
+ if( old_mtime > 0)
+ {
+ ERR << "Attached media not in mount table any more - forcing reset!"
+ << std::endl;
+
+ _mediaSource.reset();
+ }
+ else
+ {
+ WAR << "Attached media not in mount table ..." << std::endl;
+ }
+
+ // reset the mtime and force a new check to make sure,
+ // that we've found the media at least once in the mtab.
+ _attach_mtime = 0;
+ }
+ }
+ }
+ return _isAttached;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::attach
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::attach( bool next )
+{
+ if ( isAttached() )
+ return;
+
+ // reset it in case of overloaded isAttached()
+ // that checks the media against /etc/mtab ...
+ setMediaSource(MediaSourceRef());
+
+ AttachPoint ap( attachPointHint());
+ setAttachPoint(ap.path, ap.temp);
+
+ try
+ {
+ attachTo( next ); // pass to concrete handler
+ }
+ catch(const MediaException &e)
+ {
+ removeAttachPoint();
+ ZYPP_RETHROW(e);
+ }
+ MIL << "Attached: " << *this << endl;
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::localPath
+// METHOD TYPE : Pathname
+//
+Pathname MediaHandler::localPath( const Pathname & pathname ) const
+{
+ Pathname _localRoot( localRoot());
+ if ( _localRoot.empty() )
+ return _localRoot;
+
+ // we must check maximum file name length
+ // this is important for fetching the suseservers, the
+ // url with all parameters can get too long (bug #42021)
+
+ return _localRoot + pathname.absolutename();
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::disconnect
+// METHOD TYPE : PMError
+//
+void MediaHandler::disconnect()
+{
+ if ( !isAttached() )
+ return;
+
+ disconnectFrom(); // pass to concrete handler
+ MIL << "Disconnected: " << *this << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::release
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::release( const std::string & ejectDev )
+{
+ if ( !isAttached() ) {
+ DBG << "Request to release media - not attached; eject '" << ejectDev <<
"'"
+ << std::endl;
+ if ( !ejectDev.empty() )
+ forceEject(ejectDev);
+ return;
+ }
+
+ DBG << "Request to release attached media "
+ << _mediaSource->asString()
+ << ", use count=" << _mediaSource.use_count()
+ << std::endl;
+
+ if( _mediaSource.unique())
+ {
+ DBG << "Releasing media " << _mediaSource->asString() << std::endl;
+ try {
+ releaseFrom( ejectDev ); // pass to concrete handler
+ }
+ catch(const MediaNotEjectedException &e)
+ {
+ // not ejected because the media
+ // is mounted by somebody else
+ // (if our attach point is busy,
+ // we get an umount exception)
+ _mediaSource.reset(NULL);
+ removeAttachPoint();
+ // OK, retrow now
+ ZYPP_RETHROW(e);
+ }
+ _mediaSource.reset(NULL);
+ removeAttachPoint();
+ }
+ else if( !ejectDev.empty() ) {
+ //
+ // Can't eject a shared media
+ //
+ //ZYPP_THROW(MediaIsSharedException(_mediaSource->asString()));
+
+ MediaSourceRef media( new MediaSource(*_mediaSource));
+ _mediaSource.reset(NULL);
+
+ MediaManager manager;
+ manager.forceReleaseShared(media);
+
+ setMediaSource(media);
+ DBG << "Releasing media (forced) " << _mediaSource->asString() <<
std::endl;
+ try {
+ releaseFrom( ejectDev ); // pass to concrete handler
+ }
+ catch(const MediaNotEjectedException &e)
+ {
+ // not ejected because the media
+ // is mounted by somebody else
+ // (if our attach point is busy,
+ // we get an umount exception)
+ _mediaSource.reset(NULL);
+ removeAttachPoint();
+ // OK, retrow now
+ ZYPP_RETHROW(e);
+ }
+ _mediaSource.reset(NULL);
+ removeAttachPoint();
+ }
+ else {
+ DBG << "Releasing shared media reference only" << std::endl;
+ _mediaSource.reset(NULL);
+ setAttachPoint("", true);
+ }
+ MIL << "Released: " << *this << endl;
+}
+
+bool MediaHandler::isAutoMountedMedia(const AttachedMedia &media)
+{
+ (void)media;
+ return false;
+}
+
+void MediaHandler::forceRelaseAllMedia(bool matchMountFs, bool autoMountedOny)
+{
+ forceRelaseAllMedia( attachedMedia().mediaSource, matchMountFs,
autoMountedOny);
+}
+
+void MediaHandler::forceRelaseAllMedia(const MediaSourceRef &ref,
+ bool matchMountFs,
+ bool autoMountedOny)
+{
+ if( !ref)
+ return;
+
+ MountEntries entries( MediaManager::getMountEntries());
+ MountEntries::const_iterator e;
+ for( e = entries.begin(); e != entries.end(); ++e)
+ {
+ bool is_device = false;
+ std::string dev_path(Pathname(e->src).asString());
+ PathInfo dev_info;
+
+ if( dev_path.compare(0, sizeof("/dev/")-1, "/dev/") == 0 &&
+ dev_info(e->src) && dev_info.isBlk())
+ {
+ is_device = true;
+ }
+
+ if( is_device && ref->maj_nr)
+ {
+ std::string mtype(matchMountFs ? e->type : ref->type);
+ MediaSource media(mtype, e->src, dev_info.major(), dev_info.minor());
+
+ if( ref->equals( media) && e->type != "subfs")
+ {
+ if(autoMountedOny)
+ {
+ try {
+ AttachedMedia am(MediaSourceRef(new MediaSource(media)),
+ AttachPointRef(new AttachPoint(e->dir)));
+ if( !isAutoMountedMedia(am))
+ continue;
+ }
+ catch(...)
+ {
+ continue;
+ }
+ }
+ DBG << "Forcing release of media device "
+ << ref->asString()
+ << " in the mount table as "
+ << e->src << std::endl;
+ try {
+ Mount mount;
+ mount.umount(e->dir);
+ }
+ catch (const Exception &e)
+ {
+ ZYPP_CAUGHT(e);
+ }
+ }
+ }
+ else
+ if(!is_device && !ref->maj_nr)
+ {
+ std::string mtype(matchMountFs ? e->type : ref->type);
+ MediaSource media(mtype, e->src);
+ if( ref->equals( media))
+ {
+ if(autoMountedOny)
+ {
+ try {
+ AttachedMedia am(MediaSourceRef(new MediaSource(media)),
+ AttachPointRef(new AttachPoint(e->dir)));
+ if( !isAutoMountedMedia(am))
+ continue;
+ }
+ catch(...)
+ {
+ continue;
+ }
+ }
+ DBG << "Forcing release of media name "
+ << ref->asString()
+ << " in the mount table as "
+ << e->src << std::endl;
+ try {
+ Mount mount;
+ mount.umount(e->dir);
+ }
+ catch (const Exception &e)
+ {
+ ZYPP_CAUGHT(e);
+ }
+ }
+ }
+ }
+}
+
+bool
+MediaHandler::checkAttachPoint(const Pathname &apoint) const
+{
+ return MediaHandler::checkAttachPoint( apoint, true, false);
+}
+
+// STATIC
+bool
+MediaHandler::checkAttachPoint(const Pathname &apoint,
+ bool emptydir,
+ bool writeable)
+{
+ if( apoint.empty() || !apoint.absolute())
+ {
+ ERR << "Attach point '" << apoint << "' is not absolute"
+ << std::endl;
+ return false;
+ }
+ if( apoint == "/")
+ {
+ ERR << "Attach point '" << apoint << "' is not allowed"
+ << std::endl;
+ return false;
+ }
+
+ PathInfo ainfo(apoint);
+ if( !ainfo.isDir())
+ {
+ ERR << "Attach point '" << apoint << "' is not a directory"
+ << std::endl;
+ return false;
+ }
+
+ if( emptydir)
+ {
+ if( 0 != zypp::filesystem::is_empty_dir(apoint))
+ {
+ ERR << "Attach point '" << apoint << "' is not a empty directory"
+ << std::endl;
+ return false;
+ }
+ }
+
+ if( writeable)
+ {
+ Pathname apath(apoint + "XXXXXX");
+ char *atemp = ::strdup( apath.asString().c_str());
+ char *atest = NULL;
+ if( !ainfo.userMayRWX() || atemp == NULL ||
+ (atest=::mkdtemp(atemp)) == NULL)
+ {
+ if( atemp != NULL)
+ ::free(atemp);
+
+ ERR << "Attach point '" << ainfo.path()
+ << "' is not a writeable directory" << std::endl;
+ return false;
+ }
+ else if( atest != NULL)
+ ::rmdir(atest);
+
+ if( atemp != NULL)
+ ::free(atemp);
+ }
+ return true;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+// METHOD NAME : MediaHandler::dependsOnParent
+// METHOD TYPE : bool
+//
+// DESCRIPTION :
+//
+bool
+MediaHandler::dependsOnParent()
+{
+ return _parentId != 0;
+}
+
+bool
+MediaHandler::dependsOnParent(MediaAccessId parentId, bool exactIdMatch)
+{
+ if( _parentId != 0)
+ {
+ if(parentId == _parentId)
+ return true;
+
+ if( !exactIdMatch)
+ {
+ MediaManager mm;
+ AttachedMedia am1 = mm.getAttachedMedia(_parentId);
+ AttachedMedia am2 = mm.getAttachedMedia(parentId);
+ if( am1.mediaSource && am2.mediaSource)
+ {
+ return am1.mediaSource->equals( *(am2.mediaSource));
+ }
+ }
+ }
+ return false;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::provideFile
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::provideFileCopy( Pathname srcFilename,
+ Pathname targetFilename ) const
+{
+ if ( !isAttached() ) {
+ INT << "Media not_attached on provideFileCopy(" << srcFilename
+ << "," << targetFilename << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getFileCopy( srcFilename, targetFilename ); // pass to concrete handler
+ DBG << "provideFileCopy(" << srcFilename << "," << targetFilename << ")" <<
endl;
+}
+
+void MediaHandler::provideFile( Pathname filename ) const
+{
+ if ( !isAttached() ) {
+ INT << "Error: Not attached on provideFile(" << filename << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getFile( filename ); // pass to concrete handler
+ DBG << "provideFile(" << filename << ")" << endl;
+}
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::provideDir
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::provideDir( Pathname dirname ) const
+{
+ if ( !isAttached() ) {
+ INT << "Error: Not attached on provideDir(" << dirname << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getDir( dirname, /*recursive*/false ); // pass to concrete handler
+ MIL << "provideDir(" << dirname << ")" << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::provideDirTree
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::provideDirTree( Pathname dirname ) const
+{
+ if ( !isAttached() ) {
+ INT << "Error Not attached on provideDirTree(" << dirname << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getDir( dirname, /*recursive*/true ); // pass to concrete handler
+ MIL << "provideDirTree(" << dirname << ")" << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::releasePath
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::releasePath( Pathname pathname ) const
+{
+ if ( ! _does_download || _attachPoint->empty() )
+ return;
+
+ PathInfo info( localPath( pathname ) );
+
+ if ( info.isFile() ) {
+ unlink( info.path() );
+ } else if ( info.isDir() ) {
+ if ( info.path() != localRoot() ) {
+ recursive_rmdir( info.path() );
+ } else {
+ clean_dir( info.path() );
+ }
+ }
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::dirInfo
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::dirInfo( std::list<std::string> & retlist,
+ const Pathname & dirname, bool dots ) const
+{
+ retlist.clear();
+
+ if ( !isAttached() ) {
+ INT << "Error: Not attached on dirInfo(" << dirname << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getDirInfo( retlist, dirname, dots ); // pass to concrete handler
+ MIL << "dirInfo(" << dirname << ")" << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::dirInfo
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+void MediaHandler::dirInfo( filesystem::DirContent & retlist,
+ const Pathname & dirname, bool dots ) const
+{
+ retlist.clear();
+
+ if ( !isAttached() ) {
+ INT << "Error: Not attached on dirInfo(" << dirname << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+
+ getDirInfo( retlist, dirname, dots ); // pass to concrete handler
+ MIL << "dirInfo(" << dirname << ")" << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::doesFileExist
+// METHOD TYPE : PMError
+//
+// DESCRIPTION :
+//
+bool MediaHandler::doesFileExist( const Pathname & filename ) const
+{
+ // TODO do some logging
+ if ( !isAttached() ) {
+ INT << "Error Not attached on doesFileExist(" << filename << ")" << endl;
+ ZYPP_THROW(MediaNotAttachedException(url()));
+ }
+ return getDoesFileExist( filename );
+ MIL << "doesFileExist(" << filename << ")" << endl;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDirectoryYast
+// METHOD TYPE : PMError
+//
+void MediaHandler::getDirectoryYast( std::list<std::string> & retlist,
+ const Pathname & dirname, bool dots )
const
+{
+ retlist.clear();
+
+ filesystem::DirContent content;
+ getDirectoryYast( content, dirname, dots );
+
+ // convert to std::list<std::string>
+ for ( filesystem::DirContent::const_iterator it = content.begin(); it !=
content.end(); ++it ) {
+ retlist.push_back( it->name );
+ }
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDirectoryYast
+// METHOD TYPE : PMError
+//
+void MediaHandler::getDirectoryYast( filesystem::DirContent & retlist,
+ const Pathname & dirname, bool dots )
const
+{
+ retlist.clear();
+
+ // look for directory.yast
+ Pathname dirFile = dirname + "directory.yast";
+ getFile( dirFile );
+ DBG << "provideFile(" << dirFile << "): " << "OK" << endl;
+
+ // using directory.yast
+ ifstream dir( localPath( dirFile ).asString().c_str() );
+ if ( dir.fail() ) {
+ ERR << "Unable to load '" << localPath( dirFile ) << "'" << endl;
+ ZYPP_THROW(MediaSystemException(url(),
+ "Unable to load '" + localPath( dirFile ).asString() + "'"));
+ }
+
+ string line;
+ while( getline( dir, line ) ) {
+ if ( line.empty() ) continue;
+ if ( line == "directory.yast" ) continue;
+
+ // Newer directory.yast append '/' to directory names
+ // Remaining entries are unspecified, although most probabely files.
+ filesystem::FileType type = filesystem::FT_NOT_AVAIL;
+ if ( *line.rbegin() == '/' ) {
+ line.erase( line.end()-1 );
+ type = filesystem::FT_DIR;
+ }
+
+ if ( dots ) {
+ if ( line == "." || line == ".." ) continue;
+ } else {
+ if ( *line.begin() == '.' ) continue;
+ }
+
+ retlist.push_back( filesystem::DirEntry( line, type ) );
+ }
+}
+
+/******************************************************************
+**
+**
+** FUNCTION NAME : operator<<
+** FUNCTION TYPE : ostream &
+*/
+ostream & operator<<( ostream & str, const MediaHandler & obj )
+{
+ str << obj.url() << ( obj.isAttached() ? "" : " not" )
+ << " attached; localRoot \"" << obj.localRoot() << "\"";
+ return str;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getFile
+// METHOD TYPE : PMError
+//
+// DESCRIPTION : Asserted that media is attached.
+// Default implementation of pure virtual.
+//
+void MediaHandler::getFile( const Pathname & filename ) const
+{
+ PathInfo info( localPath( filename ) );
+ if( info.isFile() ) {
+ return;
+ }
+
+ if (info.isExist())
+ ZYPP_THROW(MediaNotAFileException(url(), localPath(filename)));
+ else
+ ZYPP_THROW(MediaFileNotFoundException(url(), filename));
+}
+
+
+void MediaHandler::getFileCopy ( const Pathname & srcFilename, const Pathname
& targetFilename ) const
+{
+ getFile(srcFilename);
+
+ if ( copy( localPath( srcFilename ), targetFilename ) != 0 ) {
+ ZYPP_THROW(MediaWriteException(targetFilename));
+ }
+}
+
+
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDir
+// METHOD TYPE : PMError
+//
+// DESCRIPTION : Asserted that media is attached.
+// Default implementation of pure virtual.
+//
+void MediaHandler::getDir( const Pathname & dirname, bool recurse_r ) const
+{
+ PathInfo info( localPath( dirname ) );
+ if( info.isDir() ) {
+ return;
+ }
+
+ if (info.isExist())
+ ZYPP_THROW(MediaNotADirException(url(), localPath(dirname)));
+ else
+ ZYPP_THROW(MediaFileNotFoundException(url(), dirname));
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDirInfo
+// METHOD TYPE : PMError
+//
+// DESCRIPTION : Asserted that media is attached and retlist is empty.
+// Default implementation of pure virtual.
+//
+void MediaHandler::getDirInfo( std::list<std::string> & retlist,
+ const Pathname & dirname, bool dots ) const
+{
+ PathInfo info( localPath( dirname ) );
+ if( ! info.isDir() ) {
+ ZYPP_THROW(MediaNotADirException(url(), localPath(dirname)));
+ }
+
+#if NONREMOTE_DIRECTORY_YAST
+ // use directory.yast if available
+ try {
+ getDirectoryYast( retlist, dirname, dots );
+ }
+ catch (const MediaException & excpt_r)
+ {
+#endif
+
+ // readdir
+ int res = readdir( retlist, info.path(), dots );
+ if ( res )
+ {
+ MediaSystemException nexcpt(url(), "readdir failed");
+#if NONREMOTE_DIRECTORY_YAST
+ nexcpt.remember(excpt_r);
+#endif
+ ZYPP_THROW(nexcpt);
+ }
+
+#if NONREMOTE_DIRECTORY_YAST
+ }
+#endif
+
+ return;
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDirInfo
+// METHOD TYPE : PMError
+//
+// DESCRIPTION : Asserted that media is attached and retlist is empty.
+// Default implementation of pure virtual.
+//
+void MediaHandler::getDirInfo( filesystem::DirContent & retlist,
+ const Pathname & dirname, bool dots ) const
+{
+ PathInfo info( localPath( dirname ) );
+ if( ! info.isDir() ) {
+ ZYPP_THROW(MediaNotADirException(url(), localPath(dirname)));
+ }
+
+#if NONREMOTE_DIRECTORY_YAST
+ // use directory.yast if available
+ try {
+ getDirectoryYast( retlist, dirname, dots );
+ }
+ catch (const MediaException & excpt_r)
+ {
+#endif
+
+ // readdir
+ int res = readdir( retlist, info.path(), dots );
+ if ( res )
+ {
+ MediaSystemException nexcpt(url(), "readdir failed");
+#if NONREMOTE_DIRECTORY_YAST
+ nexcpt.remember(excpt_r);
+#endif
+ ZYPP_THROW(nexcpt);
+ }
+#if NONREMOTE_DIRECTORY_YAST
+ }
+#endif
+}
+
+///////////////////////////////////////////////////////////////////
+//
+//
+// METHOD NAME : MediaHandler::getDoesFileExist
+// METHOD TYPE : PMError
+//
+// DESCRIPTION : Asserted that file is not a directory
+// Default implementation of pure virtual.
+//
+bool MediaHandler::getDoesFileExist( const Pathname & filename ) const
+{
+ PathInfo info( localPath( filename ) );
+ if( info.isDir() ) {
+ ZYPP_THROW(MediaNotAFileException(url(), localPath(filename)));
+ }
+ return info.isExist();
+}
+
+bool MediaHandler::hasMoreDevices()
+{
+ return false;
+}
+
+void MediaHandler::getDetectedDevices(std::vector<std::string> & devices,
+ unsigned int & index) const
+{
+ // clear the vector by default
+ if (!devices.empty())
+ devices.clear();
+ index = 0;
+
+ DBG << "No devices for this medium" << endl;
+}
+
+
+ } // namespace media
+} // namespace zypp
+// vim: set ts=8 sts=2 sw=2 ai noet:

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