webgui/lib/WebGUI/Asset/File.pm
2009-02-20 23:47:30 +00:00

580 lines
16 KiB
Perl

package WebGUI::Asset::File;
=head1 LEGAL
-------------------------------------------------------------------
WebGUI is Copyright 2001-2009 Plain Black Corporation.
-------------------------------------------------------------------
Please read the legal notices (docs/legal.txt) and the license
(docs/license.txt) that came with this distribution before using
this software.
-------------------------------------------------------------------
http://www.plainblack.com info@plainblack.com
-------------------------------------------------------------------
=cut
use strict;
use base 'WebGUI::Asset';
use Carp;
use WebGUI::Cache;
use WebGUI::Storage;
use WebGUI::SQL;
use WebGUI::Utility;
=head1 NAME
Package WebGUI::Asset::File
=head1 DESCRIPTION
Provides a mechanism to upload files to WebGUI.
=head1 SYNOPSIS
use WebGUI::Asset::File;
=head1 METHODS
These methods are available from this class:
=cut
#-------------------------------------------------------------------
=head2 addRevision
Override the default method in order to deal with attachments.
=cut
sub addRevision {
my $self = shift;
my $newSelf = $self->SUPER::addRevision(@_);
if ($newSelf->get("storageId") && $newSelf->get("storageId") eq $self->get('storageId')) {
my $newStorage = $self->getStorageClass->get($self->session,$self->get("storageId"))->copy;
$newSelf->update({storageId => $newStorage->getId});
}
return $newSelf;
}
#-------------------------------------------------------------------
=head2 applyConstraints ( options )
Enforce certain things when new files are uploaded.
=head3 options
A hash reference of optional parameters. None at this time.
=cut
sub applyConstraints {
my $self = shift;
$self->getStorageLocation->setPrivileges($self->get('ownerUserId'), $self->get('groupIdView'), $self->get('groupIdEdit'));
$self->setSize;
}
#-------------------------------------------------------------------
=head2 definition ( definition )
Defines the properties of this asset.
=head3 definition
A hash reference passed in from a subclass definition.
=cut
sub definition {
my $class = shift;
my $session = shift;
my $definition = shift;
my $i18n = WebGUI::International->new($session,"Asset_File");
push(@{$definition}, {
assetName=>$i18n->get('assetName'),
tableName=>'FileAsset',
className=>'WebGUI::Asset::File',
properties=>{
cacheTimeout => {
tab => "display",
fieldType => "interval",
defaultValue => 3600,
uiLevel => 8,
label => $i18n->get("cache timeout"),
hoverHelp => $i18n->get("cache timeout help")
},
filename=>{
noFormPost=>1,
fieldType=>'hidden',
defaultValue=>'',
},
storageId=>{
noFormPost=>1,
fieldType=>'hidden',
defaultValue=>'',
},
templateId=>{
fieldType=>'template',
defaultValue=>'PBtmpl0000000000000024'
}
}
});
return $class->SUPER::definition($session, $definition);
}
#-------------------------------------------------------------------
sub duplicate {
my $self = shift;
my $newAsset = $self->SUPER::duplicate(@_);
my $newStorage = $self->getStorageLocation->copy;
$newAsset->update({storageId=>$newStorage->getId});
return $newAsset;
}
#-------------------------------------------------------------------
=head2 exportAssetData ( )
See WebGUI::AssetPackage::exportAssetData() for details.
=cut
sub exportAssetData {
my $self = shift;
my $data = $self->SUPER::exportAssetData;
push(@{$data->{storage}}, $self->get("storageId")) if ($self->get("storageId") ne "");
return $data;
}
#-------------------------------------------------------------------
sub exportWriteFile {
my $self = shift;
# we have no assurance whether the exportPath is valid or not, so check it.
WebGUI::Asset->exportCheckPath($self->session);
# if we're still here, everything is well with the export path. let's make
# sure that this user can view the asset that we want to export.
unless($self->canView) {
WebGUI::Error->throw(error => "user can't view asset at " . $self->getUrl . " to export it");
}
# if we're still here, everything is well with the export path. let's get
# our destination FS path and then make any required directories.
my $dest = $self->exportGetUrlAsPath;
my $parent = $dest->parent;
eval { File::Path::mkpath($parent->absolute->stringify) };
if($@) {
WebGUI::Error->throw(error => "could not make directory " . $parent->absolute->stringify);
}
if ( ! File::Copy::copy($self->getStorageLocation->getPath($self->get('filename')), $dest->stringify) ) {
WebGUI::Error->throw(error => "can't copy " . $self->getStorageLocation->getPath($self->get('filename'))
. ' to ' . $dest->absolute->stringify . ": $!");
}
}
#-------------------------------------------------------------------
=head2 getEditForm ( )
Returns the TabForm object that will be used in generating the edit page for this asset.
=cut
sub getEditForm {
my $self = shift;
my $tabform = $self->SUPER::getEditForm();
my $i18n = WebGUI::International->new($self->session, 'Asset_File');
$tabform->getTab("properties")->raw(
'<tr><td>'.$i18n->get('new file').'<td colspan="2">'
. $self->getEditFormUploadControl
. '</td></tr>'
);
return $tabform;
}
#----------------------------------------------------------------------------
=head2 getEditFormUploadControl
Returns the HTML to render the upload box and link to delete the existing
file, if necessary.
=cut
sub getEditFormUploadControl {
my $self = shift;
my $session = $self->session;
my $i18n = WebGUI::International->new($session, 'Asset_File');
my $html = '';
if ($self->get("filename") ne "") {
$html .= WebGUI::Form::readOnly( $session, {
label => $i18n->get('current file'),
hoverHelp => $i18n->get('current file description', 'Asset_File'),
value => '<p style="display:inline;vertical-align:middle;"><a href="'.$self->getFileUrl.'"><img src="'.$self->getFileIconUrl.'" alt="'.$self->get("filename").'" style="border-style:none;vertical-align:middle;" /> '.$self->get("filename").'</a></p>'
});
}
# Control to upload a new file
$html .= WebGUI::Form::file( $session, {
name => 'newFile',
label => $i18n->get('new file'),
hoverHelp => $i18n->get('new file description'),
});
return $html;
}
#-------------------------------------------------------------------
sub getFileUrl {
my $self = shift;
#return $self->get("url");
return $self->getStorageLocation->getUrl($self->get("filename"));
}
#-------------------------------------------------------------------
sub getFileIconUrl {
my $self = shift;
return undef unless $self->get("filename"); ## Why do I have to do this when creating new Files?
return $self->getStorageLocation->getFileIconUrl($self->get("filename"));
}
#-------------------------------------------------------------------
sub getIcon {
my $self = shift;
my $small = shift;
if ($small && $self->get("dummy")) {
return $self->session->url->extras('assets/small/file.gif');
} elsif ($small) {
return $self->getFileIconUrl;
}
return $self->session->url->extras('assets/file.gif');
}
#----------------------------------------------------------------------------
=head2 getStorageClass
Get the full classname of the WebGUI::Storage we should use for this asset.
=cut
sub getStorageClass {
return 'WebGUI::Storage';
}
#-------------------------------------------------------------------
=head2 getStorageFromPost
Get the storage location created by the form post.
=cut
sub getStorageFromPost {
my $self = shift;
my $storageId = shift;
my $fileStorageId = WebGUI::Form::File->new($self->session, {name => 'newFile', value=>$storageId })->getValue;
$self->session->errorHandler->info( "File Storage Id: $fileStorageId" );
return $self->getStorageClass->get($self->session, $fileStorageId);
}
#-------------------------------------------------------------------
sub getStorageLocation {
my $self = shift;
unless (exists $self->{_storageLocation}) {
$self->setStorageLocation;
}
return $self->{_storageLocation};
}
#-------------------------------------------------------------------
=head2 indexContent ( )
Indexing the content of the attachment. See WebGUI::Asset::indexContent() for additonal details.
=cut
sub indexContent {
my $self = shift;
my $indexer = $self->SUPER::indexContent;
$indexer->addFile($self->getStorageLocation->getPath($self->get("filename")));
}
#-------------------------------------------------------------------
=head2 prepareView ( )
See WebGUI::Asset::prepareView() for details.
=cut
sub prepareView {
my $self = shift;
$self->SUPER::prepareView();
my $template = WebGUI::Asset::Template->new($self->session, $self->get("templateId"));
$template->prepare($self->getMetaDataAsTemplateVariables);
$self->{_viewTemplate} = $template;
}
#-------------------------------------------------------------------
sub processPropertiesFromFormPost {
my $self = shift;
my $session = $self->session;
my $errors = $self->SUPER::processPropertiesFromFormPost || [];
return $errors if @$errors;
if (my $storageId = $session->form->get('newFile','File')) {
$session->errorHandler->info("Got a new file for asset " . $self->getId);
my $storage = $self->getStorageClass->get( $session, $storageId);
my $filePath = $storage->getPath( $storage->getFiles->[0] );
$self->setFile( $filePath );
$storage->delete;
}
else {
$self->applyConstraints;
}
return undef;
}
#-------------------------------------------------------------------
sub purge {
my $self = shift;
my $sth = $self->session->db->read("select storageId from FileAsset where assetId=".$self->session->db->quote($self->getId));
while (my ($storageId) = $sth->array) {
$self->getStorageClass->get($self->session,$storageId)->delete;
}
$sth->finish;
return $self->SUPER::purge;
}
#-------------------------------------------------------------------
=head2 purgeCache ( )
See WebGUI::Asset::purgeCache() for details.
=cut
sub purgeCache {
my $self = shift;
WebGUI::Cache->new($self->session,"view_".$self->getId)->delete;
$self->SUPER::purgeCache;
}
#-------------------------------------------------------------------
sub purgeRevision {
my $self = shift;
$self->getStorageLocation->delete;
return $self->SUPER::purgeRevision;
}
#----------------------------------------------------------------------------
=head2 setFile ( [pathtofile] )
Tells the asset to do all the postprocessing on the file (setting privs, thubnails, or whatever).
=head3 pathtofile
If specified will copy a new file into the storage location from this path and delete any existing file.
=cut
sub setFile {
my $self = shift;
my $filename = shift;
if ($filename) {
my $storage = $self->getStorageLocation;
# Clear the old file if any
$storage->clear;
$storage->addFileFromFilesystem($filename)
|| croak "Couldn't setFile: " . join(", ",@{ $storage->getErrors });
# NOTE: We should not croak here, the WebGUI::Storage should croak for us.
}
$self->updatePropertiesFromStorage;
$self->applyConstraints;
}
#-------------------------------------------------------------------
=head2 setSize ( fileSize )
Set the size of this asset by including all the files in its storage
location. C<fileSize> is an integer of additional bytes to include in
the asset size.
=cut
sub setSize {
my $self = shift;
my $fileSize = shift || 0;
my $storage = $self->getStorageLocation;
if (defined $storage) {
foreach my $file (@{$storage->getFiles}) {
$fileSize += $storage->getFileSize($file);
}
}
return $self->SUPER::setSize($fileSize);
}
#-------------------------------------------------------------------
sub setStorageLocation {
my $self = shift;
my $storage = shift;
if (defined $storage) {
$self->{_storageLocation} = $storage;
}
elsif ($self->get("storageId") eq "") {
$self->{_storageLocation} = $self->getStorageClass->create($self->session);
$self->update({storageId=>$self->{_storageLocation}->getId});
}
else {
$self->{_storageLocation} = $self->getStorageClass->get($self->session,$self->get("storageId"));
}
}
#-------------------------------------------------------------------
=head2 update
We override the update method from WebGUI::Asset in order to handle file system privileges.
=cut
sub update {
my $self = shift;
my %before = (
owner => $self->get("ownerUserId"),
view => $self->get("groupIdView"),
edit => $self->get("groupIdEdit"),
storageId => $self->get('storageId'),
);
$self->SUPER::update(@_);
##update may have entered a new storageId. Reset the cached one just in case.
if ($self->get("storageId") ne $before{storageId}) {
$self->setStorageLocation;
}
if ($self->get("ownerUserId") ne $before{owner} || $self->get("groupIdEdit") ne $before{edit} || $self->get("groupIdView") ne $before{view}) {
$self->getStorageLocation->setPrivileges($self->get("ownerUserId"),$self->get("groupIdView"),$self->get("groupIdEdit"));
}
}
#----------------------------------------------------------------------------
=head2 updatePropertiesFromStorage ( )
Updates the asset properties from the file tracked by this asset. Should be
called every time the file is changed to ensure the correct filename is
in the asset properties.
=cut
sub updatePropertiesFromStorage {
my $self = shift;
my $storage = $self->getStorageLocation;
my $filename = $storage->getFiles->[0];
$self->session->errorHandler->info("Updating file asset filename to $filename");
$self->update({
filename => $filename,
});
return undef;
}
#-------------------------------------------------------------------
sub view {
my $self = shift;
if (!$self->session->var->isAdminOn && $self->get("cacheTimeout") > 10) {
my $out = WebGUI::Cache->new($self->session,"view_".$self->getId)->get;
return $out if $out;
}
my %var = %{$self->get};
$var{controls} = $self->getToolbar;
$var{fileUrl} = $self->getFileUrl;
$var{fileIcon} = $self->getFileIconUrl;
$var{fileSize} = formatBytes($self->get("assetSize"));
my $out = $self->processTemplate(\%var,undef,$self->{_viewTemplate});
if (!$self->session->var->isAdminOn && $self->get("cacheTimeout") > 10) {
WebGUI::Cache->new($self->session,"view_".$self->getId)->set($out,$self->get("cacheTimeout"));
}
return $out;
}
#-------------------------------------------------------------------
sub www_edit {
my $self = shift;
return $self->session->privilege->insufficient() unless $self->canEdit;
return $self->session->privilege->locked() unless $self->canEditIfLocked;
my $i18n = WebGUI::International->new($self->session);
my $tabform = $self->getEditForm;
$tabform->getTab("display")->template(
-value=>$self->getValue("templateId"),
-hoverHelp=>$i18n->get('file template description','Asset_File'),
-namespace=>"FileAsset"
);
return $self->getAdminConsole->render($tabform->print,$self->addEditLabel);
}
#-------------------------------------------------------------------
sub www_view {
my $self = shift;
return $self->session->privilege->noAccess() unless $self->canView;
# Check to make sure it's not in the trash or some other weird place
if ($self->get("state") ne "published") {
my $i18n = WebGUI::International->new($self->session,'Asset_File');
$self->session->http->setStatus("404");
return sprintf($i18n->get("file not found"), $self->getUrl());
}
$self->session->http->setRedirect($self->getFileUrl);
$self->session->http->setStreamedFile($self->getStorageLocation->getPath($self->get("filename")));
$self->session->http->sendHeader;
return 'chunked';
}
1;