[LON-CAPA-cvs] cvs: modules /gerd/harvesting lonindexer.pm
www
www at source.lon-capa.org
Thu Jun 28 16:06:08 EDT 2012
www Thu Jun 28 20:06:08 2012 EDT
Added files:
/modules/gerd/harvesting lonindexer.pm
Log:
Prototype version of recommender - starting the new module
-------------- next part --------------
Index: modules/gerd/harvesting/lonindexer.pm
+++ modules/gerd/harvesting/lonindexer.pm
# The LearningOnline Network with CAPA
# Directory Indexer
#
# PROTOTYPE VERSION FOR RECOMMENDER
#
# MODIFY $datapath VARIABLE FOR LOCATION OF DATA FILES
#
# $Id: lonindexer.pm,v 1.1 2012/06/28 20:06:08 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA 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.
#
# LON-CAPA 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 LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###
###############################################################################
## ##
## ORGANIZATION OF THIS PERL MODULE ##
## ##
## 1. Description of functions ##
## 2. Modules used by this module ##
## 3. Choices for different output views (detailed, summary, xml, etc) ##
## 4. BEGIN block (to be run once after compilation) ##
## 5. Handling routine called via Apache and mod_perl ##
## 6. Other subroutines ##
## ##
###############################################################################
package Apache::lonindexer;
# ------------------------------------------------- modules used by this module
use strict;
# PROTOTYPE USE --- will need to be modified
use GDBM_File;
my $datapath='/home/www/loncapa/modules/gerd/harvesting/';
use Apache::lonnet;
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::lonsequence();
use Apache::Constants qw(:common);
use Apache::lonmeta;
use Apache::File;
use Apache::lonlocal;
use Apache::lonsource();
use Apache::groupsort();
use GDBM_File;
use LONCAPA qw(:match);
# ---------------------------------------- variables used throughout the module
my %hash; # global user-specific gdbm file
my %dirs; # keys are directories, values are the open/close status
my %language; # has the reference information present in language.tab
my %dynhash; # hash of hashes for dynamic metadata
my %dynread; # hash of directories already read for dynamic metadata
my %fieldnames; # Metadata fieldnames
# ----- Values which are set by the handler subroutine and are accessible to
# ----- other methods.
my $extrafield; # default extra table cell
my $fnum; # file counter
my $dnum; # directory counter
# ----- Used to include or exclude files with certain extensions.
my @Only = ();
my @Omit = ();
# PROTOTYPE ROUTINES --- These are the routines needed to run the prototype
# Accessing the data files in $datapath
# =================================================================================
#
# Return the resources that the resources in the argument are associated with
# by having been used in the same folder
# Takes an array of resource keys, returns a hash with resource keys as keys
# and frequency as values
#
sub associated {
my (@with)=@_;
my %output=();
my %hash;
#
# The associations database has entries: key -> other1:weight1,other2:weight2
# to show which other resources have been used in the same context
#
tie(%hash, 'GDBM_File', $datapath.'dbfiles/associations.db',&GDBM_READER(),0640);
foreach my $key (@with) {
my $assoc=$hash{$key};
foreach my $other (split(/\,/,$assoc)) {
my ($tother,$tweight)=split(/\:/,$other);
if ($tweight) {
$output{$tother}+=$tweight;
}
}
}
untie(%hash);
foreach my $key (@with) { delete($output{$key}); }
return %output;
}
# =================================================================================
#
# Return the resource keys that are catalogued with a set of taxonomies
#
sub taxonomy_members {
my (@which)=@_;
my %taxcut;
my %lookup=();
my %level=();
my $minlevel=3;
my %output=();
#
# Find out the taxonomy indices
# taxo_categories has taxonomy names as keys and taxonomy indices as values
# also has taxonomy indices as keys and frequency as values
# minlevel is going to be smallest taxonomy level in the set, %lookup contains what to look up
# minlevel=1 is the most work
my @checkon=();
tie(%taxcut, 'GDBM_File', $datapath.'dbfiles/taxo_categories.db',&GDBM_READER(),0640);
foreach my $twhich (@which) {
my $tcat=$taxcut{$twhich};
if ($taxcut{$twhich}) {
$lookup{$twhich}=$tcat;
my @subcats=split(/\:/,$twhich);
$level{$twhich}=$#subcats+1;
if ($#subcats==0) {
$minlevel=1;
} elsif (($#subcats==1) && ($minlevel==3)) {
$minlevel=2;
}
}
}
untie(%taxcut);
my %taxo1;
my %taxo2;
my %taxo3;
# Tie only the levels we need
tie(%taxo3, 'GDBM_File', $datapath.'dbfiles/taxo_level3.db',&GDBM_READER(),0640);
if ($minlevel<3) {
tie(%taxo2, 'GDBM_File', $datapath.'dbfiles/taxo_level2.db',&GDBM_READER(),0640);
}
if ($minlevel<2) {
tie(%taxo1, 'GDBM_File', $datapath.'dbfiles/taxo_level1.db',&GDBM_READER(),0640);
}
# Business logic, finding stuff for each key that is supposed to be looked up
foreach my $key (keys(%lookup)) {
my $keystr='';
if ($level{$key}==3) {
$keystr=$taxo3{$lookup{$key}};
} elsif ($level{$key}==2) {
$keystr=$taxo2{$lookup{$key}};
} elsif ($level{$key}==1) {
$keystr=$taxo1{$lookup{$key}}
}
# Put into unique output
foreach my $c (split(/\s*\,\s*/,$keystr)) {
if ($c) { $output{$c}++; }
}
}
# Now resolve dependencies, etc
my $again=0;
if ($minlevel<3) {
foreach my $c (keys(%output)) {
if ($c=~/\:/) {
# something to resolve
my ($tlevel,$tsub)=split(/\:/,$c);
delete($output{$c});
my $keystr='';
if ($tlevel==3) {
$keystr=$taxo3{$tsub};
} else {
$keystr=$taxo2{$tsub};
}
foreach my $key (split/\,/,$keystr) {
if ($key) { $output{$key}++; }
}
$again=1;
}
if ($c=~/\-/) {
my ($start,$end)=split(/\-/,$c);
delete($output{$c});
if ($end>$start) {
for (my $i=$start;$i<=$end;$i++) {
$output{$i}++;
}
}
}
}
}
# If dependencies had been resolved and we were on the lowest level,
# we might have to resolve second-level dependencies
if (($again) && ($minlevel<2)) {
foreach my $c (keys(%output)) {
if ($c=~/\:/) {
# something to resolve
my ($tlevel,$tsub)=split(/\:/,$c);
delete($output{$c});
# has to be level 3 now
if ($tlevel==2) { print "\n=== Wow!!! === $c\n" };
my $keystr=$taxo3{$tsub};
foreach my $key (split/\,/,$keystr) {
if ($key) { $output{$key}++; }
}
}
}
}
# Untie the levels we opened
untie(%taxo3);
if ($minlevel<3) {
untie(%taxo2);
}
if ($minlevel<2) {
untie(%taxo1);
}
return %output;
}
# =================================================================================
#
# Return the resource keys that match the keywords
#
sub keyword_search {
my @keywords=@_;
my %output=();
my $skey=join(',', at keywords);
$skey=~s/^\W+//gs;
$skey=~s/\W+$//gs;
$skey=~s/\W+/\|/gs;
$skey=lc($skey);
my $pattern=qr/$skey/;
my %hash;
tie(%hash, 'GDBM_File', $datapath.'dbfiles/keywords.db',&GDBM_READER(),0640);
foreach my $key (keys(%hash)) {
if ($hash{$key}=~$pattern) {
$output{$key}=1;
}
}
untie(%hash);
return(%output);
}
# =================================================================================
#
# ----------------------------- Handling routine called via Apache and mod_perl
sub handler {
my $r = shift;
my $c = $r->connection();
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
return OK if $r->header_only;
$fnum=0;
$dnum=0;
# Deal with stupid global variables (is there a way around making
# these global to this package? It is just so wrong....)
undef (@Only);
undef (@Omit);
%fieldnames=&Apache::lonmeta::fieldnames();
# ------------------------------------- read in machine configuration variables
my $iconpath= $r->dir_config('lonIconsURL') . "/";
my $domain = $r->dir_config('lonDefDomain');
my $role = $r->dir_config('lonRole');
my $loadlim = $r->dir_config('lonLoadLim');
my $servadm = $r->dir_config('lonAdmEMail');
my $sysadm = $r->dir_config('lonSysEMail');
my $lonhost = $r->dir_config('lonHostID');
my $tabdir = $r->dir_config('lonTabDir');
#SB my $fileclr='#ffffe6';
my $line;
my (@attrchk, at openpath,$typeselect);
my $uri=$r->uri;
# -------------------------------------- see if called from an interactive mode
# Get the parameters from the query string
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['catalogmode','launch','acts','mode','form','element',
'only','omit','titleelement']);
#-------------------------------------------------------------------
my $closebutton='';
my $groupimportbutton='';
my $colspan='';
$extrafield='';
my $diropendb = LONCAPA::tempdir() .
"$env{'user.domain'}_$env{'user.name'}_sel_res.db";
%hash = ();
{
my %dbfile;
if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
if ($env{'form.launch'} eq '1') {
&start_fresh_session(\%dbfile);
}
while(my($key,$value)=each(%dbfile)) {
$hash{$key}=$value;
}
untie(%dbfile);
}
}
# - Evaluate actions from previous page (both cumulatively and chronologically)
if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
&Apache::groupsort::update_actions_hash(\%hash);
}
{
#Hijack lonindexer to verify a title and be close down.
if ($env{'form.launch'} eq '2') {
&Apache::loncommon::content_type($r,'text/html');
my $extra='';
if (defined($env{'form.titleelement'}) &&
$env{'form.titleelement'} ne '') {
my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
# &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
$verify_title=~s/'/\\'/g;
$extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
}
my $js = <<ENDSUBM;
<script type="text/javascript">
function load() {
window.opener.document.forms["$env{'form.form'}"]
.elements["$env{'form.element'}"]
.value='$env{'form.acts'}';
$extra
window.close();
}
</script>
ENDSUBM
$r->print(&Apache::loncommon::start_page(undef,$js,
{'only_body' =>1,
'add_modal' => 1,
'add_wishlist' => 1,
'add_entries' =>
{'onload' => "load();"},}
).
&Apache::loncommon::end_page());
return OK;
}
# -------------------- refresh environment with user database values (in %hash)
&setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
# --------------------- define extra fields and buttons in case of special mode
if ($env{'form.catalogmode'} eq 'interactive') {
#SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
$extrafield='<td class="LC_bottom">'.
'<img alt="" src="'.$iconpath.'whitespace1.gif"'.
' class="LC_icon" /></td>';
$colspan=" colspan='2' ";
my $cl=&mt('Close');
$closebutton=<<END;
<input type="button" name="close" value='$cl' onclick="self.close()" />
END
}
elsif ($env{'form.catalogmode'} eq 'import') {
#SB $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
$extrafield='<td class="LC_bottom">'.
'<img alt="" src="'.$iconpath.'whitespace1.gif"'.
' class="LC_icon" /></td>';
$colspan=" colspan='2' ";
my $cl=&mt('Close');
my $gi=&mt('Import');
$closebutton=<<END;
<input type="button" name="close" value='$cl' onclick="self.close()" />
END
$groupimportbutton=<<END;
<input type="button" name="groupimport" value='$gi'
onclick="javascript:select_group()" />
END
}
# Additions made by Matthew to make the browser a little easier to deal
# with in the future.
#
# $mode (at this time) indicates if we are in edit mode.
# $form is the name of the form that the URL is placed when the
# selection is made.
# $element is the name of the element in $formname which receives
# the URL.
#&Apache::lonxml::debug('Checking mode, form, element');
&setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
&setvalues(\%hash,'form.form' ,\%env,'form.form' );
&setvalues(\%hash,'form.element' ,\%env,'form.element');
&setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
&setvalues(\%hash,'form.only' ,\%env,'form.only' );
&setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
# Deal with 'omit' and 'only'
if (exists $env{'form.omit'}) {
@Omit = split(',',$env{'form.omit'});
}
if (exists $env{'form.only'}) {
@Only = split(',',$env{'form.only'});
}
my $mode = $env{'form.mode'};
my ($form,$element,$titleelement);
if ($mode eq 'edit' || $mode eq 'parmset') {
$form = $env{'form.form'};
$element = $env{'form.element'};
$titleelement = $env{'form.titleelement'};
}
#&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
# ------ set catalogmodefunctions to have extra needed javascript functionality
my $catalogmodefunctions='';
if ($env{'form.catalogmode'} eq 'interactive' or
$env{'form.catalogmode'} eq 'import') {
# The if statement below sets us up to use the old version
# by default (ie. if $mode is undefined). This is the easy
# way out. Hopefully in the future I'll find a way to get
# the calls dealt with in a more comprehensive manner.
#
# There is now also mode "simple", which is for the simple version of the rat
#
#
if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
$location .= "mode=".$mode."&";
$location .= "acts=";
$catalogmodefunctions=<<"END";
function select_data(url) {
changeURL(url);
self.close();
}
function select_group() {
window.location="$location"+document.forms.fileattr.acts.value;
}
function changeURL(val) {
if (opener.inf) {
if (opener.inf.document.forms.resinfo.elements.u) {
opener.inf.document.forms.resinfo.elements.u.value=val;
}
}
}
END
} elsif ($mode eq 'edit') { # we are in 'edit' mode
my $location = "/adm/groupsort?catalogmode=interactive&";
$location .= "form=$form&element=$element&mode=edit&acts=";
$catalogmodefunctions=<<END;
// mode = $mode
function select_data(url) {
var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
window.location=location;
if (window.opener.document.forms["$form"].elements["$element"].value != url) {
window.opener.unClean();
}
}
function select_group() {
window.location="$location"+document.forms.fileattr.acts.value;
}
function changeURL(val) {
if (window.opener.document) {
window.opener.document.forms["$form"].elements["$element"].value=val;
} else {
alert("The file you selected is: "+val);
}
}
END
if (!$titleelement) {
$catalogmodefunctions.='function changeTitle(val) {}';
} else {
$catalogmodefunctions.=<<END;
function changeTitle(val) {
if (window.opener.document) {
window.opener.document.forms["$form"].elements["$titleelement"].value=val;
} else {
alert("The title of the file you selected is: "+val);
}
}
END
}
} elsif ($mode eq 'parmset') {
my $location = "/adm/groupsort?catalogmode=interactive&";
$location .= "form=$form&element=$element&mode=parmset&acts=";
$catalogmodefunctions=<<END;
// mode = $mode
function select_data(url) {
changeURL(url);
self.close();
}
function select_group() {
window.location="$location"+document.forms.fileattr.acts.value;
}
function changeURL(val) {
if (window.opener.document) {
var elementname = "$element";
window.opener.document.forms["$form"].elements[elementname].value=val;
} else {
alert("The file you selected is: "+val);
}
}
END
}
}
$catalogmodefunctions.=<<END;
var acts='';
function rep_dirpath(suffix,val) {
eval("document.forms.dirpath"+suffix+".acts.value=val");
}
END
if ($env{'form.catalogmode'} eq 'import') {
$catalogmodefunctions.=<<END;
function queue(val) {
if (eval("document.forms."+val+".filelink.checked")) {
var l=val.length;
var v=val.substring(4,l);
document.forms.fileattr.acts.value+='1a'+v+'b';
}
else {
var l=val.length;
var v=val.substring(4,l);
document.forms.fileattr.acts.value+='0a'+v+'b';
}
}
END
}
my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
# ---------------------------------------------------------------- Print Header
my $js = <<"ENDHEADER";
<script type="text/javascript">
// <![CDATA[
$catalogmodefunctions;
function update_only(field) {
alert(field.name);
}
function checkAll() {
var numForms = document.forms.length;
for (i=0;i<numForms;i++) {
var numElements = document.forms[i].elements.length;
for (j=0;j<numElements;j++){
var fieldName = document.forms[i].elements[j].name;
if (fieldName == 'filelink') {
document.forms[i].elements[j].checked = true;
queue(document.forms[i].name);
}
}
}
}
function uncheckAll() {
var numForms = document.forms.length;
for (i=0;i<numForms;i++) {
var numElements = document.forms[i].elements.length;
for (j=0;j<numElements;j++){
var fieldName = document.forms[i].elements[j].name;
if (fieldName == 'filelink') {
document.forms[i].elements[j].checked = false;
queue(document.forms[i].name);
}
}
}
}
function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
var xpos = (screen.width-w)/2;
xpos = (xpos < 0) ? '0' : xpos;
var ypos = (screen.height-h)/2-30;
ypos = (ypos < 0) ? '0' : ypos;
var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
var newWin = window.open(url, wdwName, options);
newWin.focus();
}
function gothere(val) {
window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
}
// ]]>
</script>
ENDHEADER
my ($headerdom)=($uri=~m{^/res/($match_domain)/});
if ($env{'form.catalogmode'}) {
# "Popup mode"
$r->print(&Apache::loncommon::start_page('Browse published resources',$js,
{'only_body' => 1, 'add_wishlist'=>1, 'add_modal' =>1,
'domain' => $headerdom,}));
} else {
# Only display page header and breadcrumbs in non-popup mode
&Apache::lonhtmlcommon::clear_breadcrumbs();
&Apache::lonhtmlcommon::add_breadcrumb({
'text' => 'Browse published resources',
'href' => '/res/fhwfdev/?launch=1',
});
$r->print(&Apache::loncommon::start_page('Browse published resources',$js,
{'domain' => $headerdom,})
.&Apache::lonhtmlcommon::breadcrumbs()
);
}
# ---------------------------------- get state of file types to be showing
if ($env{'form.only'}) {
$typeselect = $env{'form.only'};
} else {
$typeselect = '';
}
# ---------------------------------- get state of file attributes to be showing
if ($env{'form.attrs'}) {
for (my $i=0; $i<=16; $i++) {
delete $hash{'display_attrs_'.$i};
if ($env{'form.attr'.$i} == 1) {
$attrchk[$i] = 'checked';
$hash{'display_attrs_'.$i} = 1;
}
}
} else {
for (my $i=0; $i<=16; $i++) {
$attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
}
}
my @file_categories = &Apache::loncommon::filecategories();
my %select_file_categories;
my @select_form_order = ('');
$select_file_categories{''} = &mt('All file types');
foreach my $cat (@file_categories) {
my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
$select_file_categories{$types} = &mt($cat);
push(@select_form_order,$types);
}
$select_file_categories{'select_form_order'} = \@select_form_order;
my $onchange = 'this.form.submit();';
my $type_element=
&Apache::loncommon::select_form(
$typeselect,
'only',
\%select_file_categories,$onchange);
my $type_selector = '<label>'.&mt('File Type Displayed: [_1]',
$type_element).'</label>';
# ------------------------------- output state of file attributes to be showing
# All versions has to the last item
# since it does not take an extra col
my %lt=&Apache::lonlocal::texthash(
'av' => 'All versions',
'ud' => 'Update Display',
'pr' => 'Problems',
'gr' => 'Graphics',
'at' => 'All types',
'hd' => 'Display Options'
);
my @disp_order = ('0','4','5','6','13','1','2','3','10','14','8','11','7','12','15','16');
my %disp_options = &Apache::lonlocal::texthash (
0 => 'Title',
4 => 'Author',
5 => 'Keywords',
6 => 'Language',
13 => 'Notes',
1 => 'Size',
2 => 'Last access',
3 => 'Last modified',
10 => 'Source Available',
14 => 'Abstract',
8 => 'Statistics',
11 => 'Linked/Related Resources',
7 => 'Show resource',
12 => 'Subject',
15 => 'Grade Level',
16 => 'Standards',
);
my $cell = 0;
my $numinrow = 4;
$r->print('
<form method="post" name="fileattr" action="'.$uri.'" enctype="application/x-www-form-urlencoded">
<fieldset>
<legend>'.$lt{'hd'}.'</legend>
<table style=" border-collapse: collapse; border-style: none;">'."\n");
foreach my $item (@disp_order) {
my $style = 'padding-left: 12px; padding-right: 8px;';
if ($cell%$numinrow == 0) {
$r->print('<tr>');
}
$cell ++;
if ($cell > 3 * $numinrow) {
$style .= ' padding-bottom: 6px;';
}
if (defined($disp_options{$item})) {
$r->print('<td style="'.$style.'"><span class="LC_nobreak">'.
'<label><input type="checkbox" name="attr'.$item.'" value="1" '.
$attrchk[$item].' onclick="this.form.submit();" /> '.$disp_options{$item}.
'</label></span></td>'."\n");
}
if ($cell > 1 && $cell%$numinrow == 0) {
$r->print('</tr>');
}
}
$r->print(<<END);
<tr>
<td style="font-style: italic; border-top: 1px solid black; padding-top: 6px">
<label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
</td>
<td colspan="3" style="padding-left:8px; padding-top: 4px; font-style: italic; border-top: 1px solid black; padding-top: 8px">$type_selector</td>
</tr>
</table>
<input type="hidden" name="attrs" value="1" />
</fieldset>
<input type="submit" name="updatedisplay" value="$lt{'ud'}" />
<input type="hidden" name="acts" value="" />
$closebutton $groupimportbutton
END
$r->print(&Apache::loncommon::inhibit_menu_check('input'));
# -------------- Filter out sequence containment in crumbs and "recent folders"
my $storeuri=$uri;
$storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
$storeuri=~s/\/+/\//g;
# ---------------------------------------------------------------- Bread crumbs
$r->print(
'<p>'
.&Apache::lonhtmlcommon::crumbs(
$storeuri,
'',
'',
(($env{'form.catalogmode'} eq 'import')?
'document.forms.fileattr':''))
.'<br />'
.&Apache::lonhtmlcommon::select_recent(
'residx',
'resrecent',
'window.status=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();')
.'</p>'
);
# -------------------------------------------------------- Resource Home Button
my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
if ($reshome) {
$r->print("<span class=\"LC_fontsize_large\"><a href='");
if ($env{'form.catalogmode'} eq 'import') {
$r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
} else {
$r->print($reshome);
}
$r->print("'>".&mt('Home').'</a></span>');
}
$r->print('</form>');
# ------------------------------------------------------ Remember where we were
&Apache::loncommon::storeresurl($storeuri);
&Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
# -------------------------------------------------- Check All and Uncheck all
if ($env{'form.catalogmode'} eq 'import') {
$r->print('<p><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
$r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" /></p>');
}
# ----------------- output starting row to the indexed file/directory hierarchy
#$r->print(&initdebug());
#$r->print(&writedebug("Omit:@Omit")) if (@Omit);
#$r->print(&writedebug("Only:@Only")) if (@Only);
$r->print(&Apache::loncommon::start_data_table("LC_tableBrowseRes")
.&Apache::loncommon::start_data_table_header_row());
$r->print("<th $colspan>".&mt('Name')."</th>\n");
$r->print("<th></th>\n");
$r->print("<th>".&mt('Title')."</th>\n")
if ($hash{'display_attrs_0'} == 1);
$r->print('<th class="LC_right">'.&mt("Size")." (".&mt("bytes").") ".
"</th>\n") if ($hash{'display_attrs_1'} == 1);
$r->print("<th>".&mt("Last accessed")."</th>\n")
if ($hash{'display_attrs_2'} == 1);
$r->print("<th>".&mt("Last modified")."</th>\n")
if ($hash{'display_attrs_3'} == 1);
$r->print("<th>".&mt("Author(s)")."</th>\n")
if ($hash{'display_attrs_4'} == 1);
$r->print("<th>".&mt("Keywords")."</th>\n")
if ($hash{'display_attrs_5'} == 1);
$r->print("<th>".&mt("Language")."</th>\n")
if ($hash{'display_attrs_6'} == 1);
$r->print("<th>".&mt("Usage Statistics")." <br />(".
&mt("Courses/Network Hits").") ".&mt('updated periodically')."</th>\n")
if ($hash{'display_attrs_8'} == 1);
$r->print("<th>".&mt("Source Available")."</th>\n")
if ($hash{'display_attrs_10'} == 1);
$r->print("<th>".&mt("Linked/Related Resources")."</th>\n")
if ($hash{'display_attrs_11'} == 1);
$r->print("<th>".&mt("Resource")."</th>\n")
if ($hash{'display_attrs_7'} == 1);
$r->print("<th>".&mt("Subject")."</th>\n")
if ($hash{'display_attrs_12'} == 1);
$r->print("<th>".&mt("Notes")."</th>\n")
if ($hash{'display_attrs_13'} == 1);
$r->print("<th>".&mt("Abstract")."</th>\n")
if ($hash{'display_attrs_14'} == 1);
$r->print("<th>".&mt("Grade Level")."</th>\n")
if ($hash{'display_attrs_15'} == 1);
$r->print("<th>".&mt("Standards")."</th>\n")
if ($hash{'display_attrs_16'} == 1);
$r->print(&Apache::loncommon::end_data_table_header_row());
# ----------------- read in what directories have previously been set to "open"
foreach (keys %hash) {
if ($_ =~ /^diropen_status_/) {
my $key = $_;
$key =~ s/^diropen_status_//;
$dirs{$key} = $hash{$_};
}
}
if ($env{'form.openuri'}) { # take care of review and refresh options
my $uri=$env{'form.openuri'};
if (exists($hash{'diropen_status_'.$uri})) {
my $cursta = $hash{'diropen_status_'.$uri};
$dirs{$uri} = 'open';
$hash{'diropen_status_'.$uri} = 'open';
if ($cursta eq 'open') {
$dirs{$uri} = 'closed';
$hash{'diropen_status_'.$uri} = 'closed';
}
} else {
$hash{'diropen_status_'.$uri} = 'open';
$dirs{$uri} = 'open';
}
}
my $toplevel;
my $indent = 0;
$uri = $uri.'/' if $uri !~ /.*\/$/;
if ($env{'form.dirPointer'} ne 'on') {
$hash{'top.level'} = $uri;
$toplevel = $uri;
} else {
$toplevel = $hash{'top.level'};
}
# -------------------------------- if not at top level, provide an uplink arrow
if ($toplevel ne '/res/'){
my (@uri_com) = split(/\//,$uri);
pop @uri_com;
my $upone = join('/', at uri_com);
my @list = qw (0);
&display_line ($r,'opened',$upone.'&viewOneUp',0,$upone, at list);
$indent = 1;
}
# -------- recursively go through all the directories and output as appropriate
&scanDir ($r,$toplevel,$indent,\%hash);
# -------------------------------------------------------------- end the tables
$r->print(&Apache::loncommon::end_data_table());
# ---------------------------- embed hidden information useful for group import
$r->print("<form name='fnum' action=''>");
$r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
# --------------------------------------------------- end the output and return
$r->print(&Apache::loncommon::end_page()."\n");
}
if(! $c->aborted()) {
# write back into the temporary file
my %dbfile;
if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
while (my($key,$value) = each(%hash)) {
$dbfile{$key}=$value;
}
untie(%dbfile);
}
}
return OK;
}
# ----------------------------------------------- recursive scan of a directory
sub scanDir {
my ($r,$startdir,$indent,$hashref)=@_;
my $c = $r->connection();
my ($compuri,$curdir);
my $dirptr=16384;
my $obs;
$indent++;
my %dupdirs = %dirs;
my @list=&get_list($r,$startdir);
foreach my $line (@list) {
return if ($c->aborted());
#This is a kludge, sorry aboot this
my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
next if($strip =~ /.*\.meta$/ | $obs eq '1');
my (@fileparts) = split(/\./,$strip);
if ($hash{'display_attrs_9'} != 1) {
# if not all versions to be shown
if (scalar(@fileparts) >= 3) {
my $fext = pop @fileparts;
my $ov = pop @fileparts;
my $fname = join ('.', at fileparts,$fext);
next if (grep /\Q$fname\E/, at list and $ov =~ /^\d+$/);
}
}
if ($dom eq 'domain') {
# dom list has full path /res/<domain name>/ already
$curdir='';
$compuri = (split(/\&/,$line))[0];
} else {
# user, dir & file have name only, i.e., w/o path
$compuri = join('',$startdir,$strip,'/');
$curdir = $startdir;
}
my $diropen = 'closed';
if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
while (my ($key,$val)= each %dupdirs) {
if ($key eq $compuri and $val eq "open") {
$diropen = "opened";
delete($dupdirs{$key});
delete($dirs{$key});
}
}
}
&display_line($r,$diropen,$line,$indent,$curdir,$hashref, at list);
&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
}
$indent--;
}
# --------------- get complete matched list based on the uri (returns an array)
sub get_list {
my ($r,$uri)=@_;
my @list=();
my $listerror;
(my $luri = $uri) =~ s/\//_/g;
if ($env{'form.updatedisplay'}) {
foreach (keys %hash) {
delete $hash{$_} if ($_ =~ /^dirlist_files_/);
delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
}
}
if (defined($hash{'dirlist_files_'.$luri}) &&
$hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
@list = split(/\n/,$hash{'dirlist_files_'.$luri});
} elsif ($uri=~/\.(page|sequence)\/$/) {
# is a page or a sequence
$uri=~s/\/$//;
$uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
$uri=~s/\/+/\//g;
foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
my @ratpart=split(/\:/,$_);
push(@list,&LONCAPA::map::qtescape($ratpart[1]));
}
$hash{'dirlist_files_'.$luri} = join("\n", at list);
} else {
# is really a directory
(my $listref,$listerror) = &Apache::lonnet::dirlist($uri);
if (ref($listref) eq 'ARRAY') {
@list = @{$listref};
}
$hash{'dirlist_files_'.$luri} = join("\n", at list);
$hash{'dirlist_timestamp_files_'.$luri} = time;
}
#Checking for error messages associated with empty directories or inaccessible servers (See Bug 4984)
if (($listerror eq 'no_such_dir') || ($listerror eq 'no_such_host') || ($listerror eq 'no_host')) {
$r->print("<p class='LC_info'>" . &mt("Directory does not exist."). "</p>");
} elsif ($listerror eq 'con_lost') {
$r->print("<p class='LC_info'>" . &mt("Directory temporarily not accessible."). "</p>");
}
return @list=&match_ext($r, at list);
}
sub dynmetaread {
my $uri=shift;
if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
# We don't want the filename
$uri=~s/\/[^\/]+$//;
# Did we already see this?
my $builddir=$uri;
while ($builddir) {
if ($dynread{$builddir}) {
return 0;
}
$builddir=~s/\/[^\/]+$//;
}
# Actually get the data
%dynhash=
(%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
# Remember that we got it
$dynread{$uri}=1;
}
}
sub initdebug {
my $start_page=
&Apache::loncommon::start_page('Debug',undef,
{'only_body' => 1,});
$start_page =~ s/\n/ /g;
return <<ENDJS;
<script type="text/javascript">
var debugging = true;
if (debugging) {
var debuggingWindow = window.open('','Debug','width=400,height=300',true);
}
function output(text) {
if (debugging) {
debuggingWindow.document.writeln(text);
}
}
output('$start_page<pre>');
</script>
ENDJS
}
sub writedebug {
my ($text) = @_;
return "<script type=\"text/javascript\">output('$text');</script>";
}
# -------------------- filters out files based on extensions (returns an array)
sub match_ext {
my ($r, at packlist)=@_;
my @trimlist;
my $nextline;
my @fileext;
my $dirptr=16384;
foreach my $line (@packlist) {
chomp $line;
$line =~ s/^\/home\/httpd\/html//;
my @unpackline = split (/\&/,$line);
next if ($unpackline[0] eq '.');
next if ($unpackline[0] eq '..');
my @filecom = split (/\./,$unpackline[0]);
my $fext = pop(@filecom);
my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
if ($fnptr == 0 and $unpackline[3] ne "") {
my $embstyle = &Apache::loncommon::fileembstyle($fext);
push @trimlist,$line if (defined($embstyle) &&
($embstyle ne 'hdn' or $fext eq 'meta'));
} else {
push @trimlist,$line;
}
}
@trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
return @trimlist;
}
# ------------------------------- displays one line in appropriate table format
sub display_line {
my ($r,$diropen,$line,$indent,$startdir,$hashref, at list)=@_;
my (@pathfn, $fndir);
# there could be relative paths (files actually belonging into this directory)
# or absolute paths (for example, from sequences)
my $absolute;
my $pathprefix;
if ($line=~m|^/res/| && $startdir ne '') {
$absolute=1;
$pathprefix='';
} else {
$absolute=0;
$pathprefix=$startdir;
}
my $dirptr=16384;
#SB my $fileclr="#ffffe6";
my $iconpath= $r->dir_config('lonIconsURL') . '/';
my @filecom = split (/\&/,$line);
my @pathcom = split (/\//,$filecom[0]);
my $listname = $pathcom[scalar(@pathcom)-1];
my $fnptr = $filecom[3]&$dirptr;
my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
$msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
my $nowOpen = ($diropen eq 'opened' ? 1 : 0);
my $tabtag='</td>';
my $i=0;
while ($i<=16) {
$tabtag=join('',$tabtag,"<td> </td>")
if ($i != 9 &&
$hash{'display_attrs_'.$i} == 1);
$i++;
}
my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
# display uplink arrow
if ($filecom[1] eq 'viewOneUp') {
my $updir=$startdir;
# -------------- Filter out sequence containment in crumbs and "recent folders"
$updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
$updir=~s/\/+/\//g;
#SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
$r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?
$r->print($extrafield);
$r->print("<td>\n");
$r->print ('<form method="post" name="dirpathUP" action="'.$updir.
'/" '.
'onsubmit="return rep_dirpath(\'UP\','.
'document.forms.fileattr.acts.value)" '.
'enctype="application/x-www-form-urlencoded"'.
'>'."\n");
$r->print(&Apache::loncommon::inhibit_menu_check('input'));
$r->print ('<input type="hidden" name="openuri" value="'.
$startdir.'" />'."\n");
$r->print ('<input type="hidden" name="acts" value="" />'."\n");
$r->print ('<a href="#" onclick="document.dirpathUP.submit()"><img src="'.$iconpath.'arrow.up.gif"');
$r->print (' alt="'.$msg.'" class="LC_fileicon" />'.
"\n");
$r->print(&mt("Up")."</a></form></td><td>$tabtag");
$r->print(&Apache::loncommon::end_data_table_row());
return OK;
}
# Do we have permission to look at this?
if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
# make absolute links appear on different background
#SB if ($absolute) { $fileclr='#ccdd99'; }
# display domain
if ($filecom[1] eq 'domain') {
$r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
if ($env{'form.dirPointer'} eq "on");
#SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
$r->print(&Apache::loncommon::start_data_table_row()); # valign="$valign" ?!?"
$r->print($extrafield);
$r->print("<td>");
&begin_form ($r,$filecom[0]);
my $anchor = $filecom[0];
$anchor =~ s/\W//g;
$r->print ('<a name="'.$anchor.'"></a>');
$r->print ('<input type="hidden" name="acts" value="" />');
$r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
$r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
"\n");
my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
$r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
'\')"><img alt="" src="'.$iconpath.'server.gif"');
$r->print (' class="LC_fileicon" />'."\n");
$r->print (&mt("Domain")." - $listname </a>");
if (&Apache::lonnet::domain($listname,'description')) {
$r->print("<br />(".&Apache::lonnet::domain($listname,'description').
")");
}
$r->print("</form></td><td>$tabtag");
$r->print(&Apache::loncommon::end_data_table_row());
return OK;
# display user directory
}
if ($filecom[1] eq 'user') {
# $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
my $curdir = $startdir.$filecom[0].'/';
my $anchor = $curdir;
$anchor =~ s/\W//g;
#SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
$r->print(&Apache::loncommon::start_data_table_row()
.$extrafield.'<td class="LC_'.$valign.'">');
&begin_form ($r,$curdir);
$r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
'whitespace_21.gif" class="LC_icon" />'."\n");
$r->print ('<input type="hidden" name="acts" value="" />');
$r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
$r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
'.gif" class="LC_fileicon"');
$r->print (' alt="'.$msg.'"/></a>'.
"\n");
my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
$r->print ('<a href="javascript:gothere(\''.$quotable_curdir
.'\')"><img alt="'.$msg.'" src="'.
$iconpath.'quill.gif" class="LC_fileicon" />');
my $domain=(split(m|/|,$startdir))[2];
my $plainname=&Apache::loncommon::plainname($listname,$domain);
$r->print ($listname.'</a>');
if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
# Wishlistlink
$r->print('</form></td><td><a href="javascript:;" '.
'title="'.&mt('Save a link for this folder in your personal Stored Links repository').'" '.
'onclick="set_wishlistlink('."'$plainname','$startdir$listname'".')">'.
'<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a>'.$tabtag);
$r->print(&Apache::loncommon::end_data_table_row());
return OK;
}
# display file
if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
my $title;
my $filelink = $pathprefix.$filecom[0];
if ($hash{'display_attrs_0'} == 1) {
$title = &Apache::lonnet::gettitle($filelink);
}
my @file_ext = split (/\./,$listname);
my $curfext = $file_ext[-1];
if (@Omit) {
foreach (@Omit) { return OK if (lc($curfext) eq $_); }
}
if (@Only) {
my $skip = 1;
foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
return OK if ($skip > 0);
}
# Set the icon for the file
my $iconname = &Apache::loncommon::icon($listname);
#SB $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">);
$r->print(&Apache::loncommon::start_data_table_row()); #SB valign="$valign" ?!?
$r->print('<td class="LC_middle LC_nobreak">');
if ($env{'form.catalogmode'} eq 'interactive') {
my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
$r->print("<a href=\"javascript:select_data(\'",
$quotable_filelink,"')\">");
$r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
"\n");
$r->print('</td><td class="LC_middle">');
} elsif ($env{'form.catalogmode'} eq 'import') {
$r->print("<form name='form$fnum' action=''>\n");
$r->print("<input type='checkbox' name='filelink"."' ".
"value='$filelink' onclick='".
"javascript:queue(\"form$fnum\")' ");
if ($hash{'store_'.$filelink}) {
$r->print("checked");
}
$r->print(" />\n");
$r->print('</form></td><td class="LC_middle">');
$hash{"pre_${fnum}_link"}=$filelink;
$hash{"pre_${fnum}_title"}=$title;
if (!$hash{"pre_${fnum}_title"}) {
$hash{"pre_${fnum}_title"} = 'Not_retrieved';
}
$fnum++;
}
# Form to open or close sequences
if ($filelink=~/\.(page|sequence)$/) {
my $curdir = $startdir.$filecom[0].'/';
&begin_form($r,$curdir);
$indent--;
}
# General indentation
my $count = 0;
while ($count < $indent) {
$r->print('<img alt="" src="'.$iconpath.'whitespace_21.gif"
class="LC_icon" />');
$count++;
}
# Sequence open/close icon
if ($filelink=~/\.(page|sequence)$/) {
my $curdir = $startdir.$filecom[0].'/';
my $anchor = $curdir;
$anchor =~ s/\W//g;
$r->print ('<input type="hidden" name="acts" value="" />');
$r->print ('<a name="'.$anchor.'"></a>');
$r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()">');
$r->print ('<img src="'.$iconpath.'arrow.'.($nowOpen ? "open" : "closed" ).
'.gif" class="LC_fileicon"');
$r->print (' alt="'.$msg.'" /></a>'.
"\n");
}
# Filetype icons
$r->print("<img alt=\"\" src='$iconname' class='LC_fileicon' />\n");
my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
$r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
$quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
&Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
$r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");
# Close form to open/close sequence
if ($filelink=~/\.(page|sequence)$/) {
$r->print('</form>');
}
$r->print("</td>\n");
# Wishlistlink
$r->print('<td><a href="javascript:;" title="'.&mt('Save a link for this resource in your personal Stored Links repository').'" '.
'onclick="set_wishlistlink('."'".&Apache::lonnet::gettitle($filelink).
"','$startdir$listname'".')">'.
'<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
if ($hash{'display_attrs_0'} == 1) {
$r->print('<td> '.($title eq '' ? ' ' : $title).
' </td>'."\n");
}
$r->print('<td class="LC_right"> ',
$filecom[8]," </td>\n")
if $hash{'display_attrs_1'} == 1;
$r->print('<td class="LC_nobreak"> '.
(&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
if $hash{'display_attrs_2'} == 1;
$r->print('<td class="LC_nobreak"> '.
(&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
if $hash{'display_attrs_3'} == 1;
if ($hash{'display_attrs_4'} == 1) {
my $author = &Apache::lonnet::metadata($filelink,'author');
$r->print('<td class="LC_nobreak"> '.($author eq '' ? ' ' : $author).
" </td>\n");
}
if ($hash{'display_attrs_5'} == 1) {
my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
# $keywords = ' ' if (!$keywords);
$r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
" </td>\n");
}
if ($hash{'display_attrs_6'} == 1) {
my $lang = &Apache::lonnet::metadata($filelink,'language');
$lang = &Apache::loncommon::languagedescription($lang);
$r->print('<td> '.($lang eq '' ? ' ' : $lang).
" </td>\n");
}
if ($hash{'display_attrs_8'} == 1) {
# statistics
&dynmetaread($filelink);
$r->print("<td>");
for (qw(count course stdno avetries difficulty disc clear technical
correct helpful depth)) {
dynmetaprint($r,$filelink,$_);
}
$r->print(" </td>\n");
}
if ($hash{'display_attrs_10'} == 1) {
my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
if($source eq 'open') {
my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
&Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
$r->print('<td>'."<a href=\"javascript:openWindow('"
.$quotable_sourcelink.
"', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
" target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
} else { #A cuddled else. :P
$r->print("<td> </td>\n");
}
}
if ($hash{'display_attrs_11'} == 1) {
# links
&dynmetaread($filelink);
$r->print('<td>');
&coursecontext($r,$filelink);
for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
dynmetaprint($r,$filelink,$_);
}
$r->print('</td>');
}
if ($hash{'display_attrs_7'} == 1) {
# Show resource
my $output=&showpreview($filelink);
$r->print('<td class="LC_fontsize_medium">'.($output eq '' ? ' ':$output).
" </td>\n");
}
if ($hash{'display_attrs_12'} == 1) {
my $subject = &Apache::lonnet::metadata($filelink,'subject');
$r->print('<td> '.($subject eq '' ? ' ' : $subject).
" </td>\n");
}
if ($hash{'display_attrs_13'} == 1) {
my $notes = &Apache::lonnet::metadata($filelink,'notes');
$r->print('<td> '.($notes eq '' ? ' ' : $notes).
" </td>\n");
}
if ($hash{'display_attrs_14'} == 1) {
my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
$r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
" </td>\n");
}
if ($hash{'display_attrs_15'} == 1) {
my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
$r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
" </td>\n");
}
if ($hash{'display_attrs_16'} == 1) {
my $standards = &Apache::lonnet::metadata($filelink,'standards');
$r->print('<td> '.($standards eq '' ? ' ' : $standards).
" </td>\n");
}
$r->print(&Apache::loncommon::end_data_table_row());
}
# -- display directory
if ($fnptr == $dirptr) {
my $curdir = $startdir.$filecom[0].'/';
my $anchor = $curdir;
$anchor =~ s/\W//g;
#SB $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
$r->print(&Apache::loncommon::start_data_table_row()); # SB: bgcolor suggestion: darkgrey ("LC_info_row"?!?)
# $r->print('<tr class="LC_info_row">');
$r->print($extrafield.'<td class="LC_middle LC_nobreak">');
&begin_form ($r,$curdir);
my $indentm1 = $indent-1;
my $count = 0;
while ($count < $indentm1) {
$r->print ('<img alt="" src="',$iconpath
,'whitespace_21.gif" class="LC_icon" />');
$count++;
}
$r->print ('<input type="hidden" name="acts" value="" />');
$r->print ('<a name="'.$anchor.'"></a>');
$r->print ('<a href="#" onclick="document.dirpath'.($dnum-1).'.submit()"><img src="'.$iconpath.
'arrow.'.($nowOpen ? "open" : "closed" ).'.gif"');
$r->print (' alt="'.$msg.'" class="LC_fileicon" /></a>'.
"\n");
my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
my $location = &Apache::loncommon::lonhttpdurl("/adm/lonIcons");
my $icon = "navmap.folder.".($nowOpen ? "open":"closed").'.gif';
$r->print ('<a href="javascript:gothere('
."'$quotable_curdir'".');">'
.'<img class="LC_fileicon" alt="'.&mt('Open Folder').'" src="'
.$location.'/'.$icon.'" />'
."\n");
$r->print ("$listname</a></form>");
# Wishlistlink
$r->print('</td><td><a href="javascript:;" '.
'title="'.&mt('Save a link for this folder in Stored Links').'" '.
'onclick="set_wishlistlink('."'$listname','$startdir$listname'".')">'.
'<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
'alt="'.&mt('save in Stored Links').'" style="width:22px;"/></a></td>');
# Attributes
my $filelink = $startdir.$filecom[0].'/default';
if ($hash{'display_attrs_0'} == 1) {
my $title = &Apache::lonnet::gettitle($filelink);
$r->print('<td> '.($title eq '' ? ' ' : $title).
' </td>'."\n");
}
$r->print('<td class="LC_right"> ',
$filecom[8]," </td>\n")
if $hash{'display_attrs_1'} == 1;
$r->print('<td class="LC_break"> '.
(&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
if $hash{'display_attrs_2'} == 1;
$r->print('<td class="LC_break"> '.
(&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
if $hash{'display_attrs_3'} == 1;
if ($hash{'display_attrs_4'} == 1) {
my $author = &Apache::lonnet::metadata($filelink,'author');
$r->print('<td> '.($author eq '' ? ' ' : $author).
" </td>\n");
}
if ($hash{'display_attrs_5'} == 1) {
my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
# $keywords = ' ' if (!$keywords);
$r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
" </td>\n");
}
if ($hash{'display_attrs_6'} == 1) {
my $lang = &Apache::lonnet::metadata($filelink,'language');
$lang = &Apache::loncommon::languagedescription($lang);
$r->print('<td> '.($lang eq '' ? ' ' : $lang).
" </td>\n");
}
if ($hash{'display_attrs_8'} == 1) {
$r->print('<td> </td>');
}
if ($hash{'display_attrs_10'} == 1) {
$r->print('<td> </td>');
}
if ($hash{'display_attrs_7'} == 1) {
$r->print('<td> </td>');
}
if ($hash{'display_attrs_11'} == 1) {
$r->print('<td> </td>');
}
if ($hash{'display_attrs_12'} == 1) {
my $subject = &Apache::lonnet::metadata($filelink,'subject');
$r->print('<td> '.($subject eq '' ? ' ' : $subject).
" </td>\n");
}
if ($hash{'display_attrs_13'} == 1) {
my $notes = &Apache::lonnet::metadata($filelink,'notes');
$r->print('<td> '.($notes eq '' ? ' ' : $notes).
" </td>\n");
}
if ($hash{'display_attrs_14'} == 1) {
my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
$r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
" </td>\n");
}
if ($hash{'display_attrs_15'} == 1) {
my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
$r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
" </td>\n");
}
if ($hash{'display_attrs_16'} == 1) {
my $standards = &Apache::lonnet::metadata($filelink,'standards');
$r->print('<td> '.($standards eq '' ? ' ' : $standards).
" </td>\n");
}
$r->print(&Apache::loncommon::end_data_table_row());
}
}
sub coursecontext {
my ($r,$filelink)=@_;
my $filesymb=&Apache::lonnet::symbread($filelink);
if ($filesymb) {
my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
$r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
&Apache::lonnet::gettitle($resource),
&Apache::lonnet::gettitle($map)));
}
}
sub showpreview {
my ($filelink)=@_;
if ($filelink=~m-^(/ext/|http://)-) {
return &mt('External Resource, preview not enabled');
}
my ($curfext)=($filelink=~/\.(\w+)$/);
my $output='';
my $embstyle=&Apache::loncommon::fileembstyle($curfext);
if ($embstyle eq 'ssi') {
my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
'.tmp';
if ((!$env{'form.updatedisplay'}) &&
(-e $cache)) {
open(FH,$cache);
$output=join("\n",<FH>);
close(FH);
} else {
# In update display mode, remove old cache. This is done to retroactively
# clean up course context renderings.
if (-e $cache) {
unlink($cache);
}
$output=&Apache::lonnet::ssi_body($filelink);
# Is access denied? Don't render, don't store
if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
$output='';
# Was this rendered in course content? Don't store
} elsif (!&Apache::lonnet::symbread($filelink)) {
open(FH,">$cache");
print FH $output;
close(FH);
}
}
} elsif ($embstyle eq 'img') {
$output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
} elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
$output='<img alt="'.&mt('Preview').'" src="http://'.
&Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
'/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
}
return $output;
}
sub dynmetaprint {
my ($r,$filelink,$item)=@_;
if ($dynhash{$filelink}->{$item}) {
$r->print("\n<br />".$fieldnames{$item}.': '.
&Apache::lonmeta::prettyprint($item,
$dynhash{$filelink}->{$item},
(($env{'form.catalogmode'} ne 'import')?'preview':''),
'',
(($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
}
}
# ------------------- prints the beginning of a form for directory or file link
sub begin_form {
my ($r,$uri) = @_;
my $anchor = $uri;
$anchor =~ s/\W//g;
$uri=&Apache::loncommon::escape_single($uri);
$r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
'#'.$anchor.
'" onsubmit="return rep_dirpath(\''.$dnum.'\''.
',document.forms.fileattr.acts.value)" '.
'enctype="application/x-www-form-urlencoded">'."\n");
$r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
"\n");
$r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
$r->print(&Apache::loncommon::inhibit_menu_check('input'));
$dnum++;
}
# --------- settings whenever the user causes the indexer window to be launched
sub start_fresh_session {
my ($hash) = @_;
delete $hash->{'form.catalogmode'};
delete $hash->{'form.mode'};
delete $hash->{'form.form'};
delete $hash->{'form.element'};
delete $hash->{'form.omit'};
delete $hash->{'form.only'};
foreach (keys %{$hash}) {
delete $hash->{$_} if (/^(pre_|store)/);
}
}
# ------------------------------------------------------------------- setvalues
sub setvalues {
# setvalues is used in registerurl to synchronize the database
# hash and environment hashes
my ($H1,$h1key,$H2,$h2key) =@_;
#
if (exists $H2->{$h2key}) {
$H1->{$h1key} = $H2->{$h2key};
} elsif (exists $H1->{$h1key}) {
$H2->{$h2key} = $H1->{$h1key};
}
}
1;
sub cleanup {
if (tied(%hash)){
&Apache::lonnet::logthis('Cleanup indexer: hash');
}
return OK;
}
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