loncom/interface/lonindexer.pm - diff

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Diff for /loncom/interface/lonindexer.pm between versions 1.17 and 1.23

version 1.17, 2001/08/13 14:50:35	version 1.23, 2001/11/28 16:47:25
Line 14	Line 14
# 5/31,6/1,6/2,6/15 Scott Harrison	# 5/31,6/1,6/2,6/15 Scott Harrison
# 6/26,7/8 H. K. Ng	# 6/26,7/8 H. K. Ng
# 8/6,8/7,8/10 Scott Harrison	# 8/6,8/7,8/10 Scott Harrison
	# 8/14 H. K. Ng
	# 8/28,10/15,11/28 Scott Harrison
	#
	# $Id$
	###

	###############################################################################
	## ##
	## 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;	package Apache::lonindexer;

	# ------------------------------------------------- modules used by this module
use strict;	use strict;
use Apache::lonnet();	use Apache::lonnet();
use Apache::Constants qw(:common);	use Apache::Constants qw(:common);
use Apache::File;	use Apache::File;
use GDBM_File;	use GDBM_File;

	# ---------------------------------------- variables used throughout the module
my %hash; # tied to a user-specific gdbm file	my %hash; # tied to a user-specific gdbm file
my %dirs; # keys are directories, values are the open/close status	my %dirs; # keys are directories, values are the open/close status
my %language; # has the reference information present in language.tab	my %language; # has the reference information present in language.tab
Line 43 sub BEGIN {	Line 63 sub BEGIN {
} <$fh>;	} <$fh>;
}	}

# ---------------------------------------------------------------- Main Handler	# ----------------------------- Handling routine called via Apache and mod_perl
sub handler {	sub handler {
my $r = shift;	my $r = shift;
$r->content_type('text/html');	$r->content_type('text/html');
Line 51 sub handler {	Line 71 sub handler {
return OK if $r->header_only;	return OK if $r->header_only;
$fnum=0;	$fnum=0;
$dnum=0;	$dnum=0;
	untie %hash;

# --------------------------------------------- machine configuration variables	# ------------------------------------- read in machine configuration variables
my $iconpath= $r->dir_config('lonIconsURL') . "/";	my $iconpath= $r->dir_config('lonIconsURL') . "/";
my $domain = $r->dir_config('lonDefDomain');	my $domain = $r->dir_config('lonDefDomain');
my $role = $r->dir_config('lonRole');	my $role = $r->dir_config('lonRole');
Line 128 function select_data(title,url) {	Line 149 function select_data(title,url) {
self.close();	self.close();
}	}
function select_group() {	function select_group() {
window.location="/adm/groupsort?acts="+document.forms.fileattr.acts.value;	window.location="/adm/groupsort?catalogmode=groupimport&acts="+document.forms.fileattr.acts.value;
}	}
function changeTitle(val) {	function changeTitle(val) {
if (opener.inf.document.forms.resinfo.elements.t) {	if (opener.inf.document.forms.resinfo.elements.t) {
Line 169 END	Line 190 END
<head>	<head>
<title>The LearningOnline Network With CAPA Directory Browser</title>	<title>The LearningOnline Network With CAPA Directory Browser</title>

<script language="javascript">	<script type="text/javascript">
$catalogmodefunctions	$catalogmodefunctions
function openWindow(url, wdwName, w, h, toolbar,scrollbar) {	function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
var options = "width=" + w + ",height=" + h + ",";	var options = "width=" + w + ",height=" + h + ",";
Line 229 ENDHEADER	Line 250 ENDHEADER
} keys %hash;	} keys %hash;
}	}

# output title	# ---------------------------------------------------------------- output title
$r->print('<h2><font color="#888888">The LearningOnline With CAPA '.	$r->print('<h2><font color="#888888">The LearningOnline With CAPA '.
'Network Directory Browser</font></h2>'."\n");	'Network Directory Browser</font></h2>'."\n");
# get state of file attributes to be showing	# ---------------------------------- get state of file attributes to be showing
if ($ENV{'form.attrs'} ne "") {	if ($ENV{'form.attrs'} ne "") {
for (my $i=0; $i<=5; $i++) {	for (my $i=0; $i<=6; $i++) {
delete $hash{'display_attrs_'.$i};	delete $hash{'display_attrs_'.$i};
if ($ENV{'form.attr'.$i} == 1) {	if ($ENV{'form.attr'.$i} == 1) {
$attrchk[$i] = "checked";	$attrchk[$i] = "checked";
Line 242 ENDHEADER	Line 263 ENDHEADER
}	}
}	}
} else {	} else {
for (my $i=0; $i<=5; $i++) {	for (my $i=0; $i<=6; $i++) {
$attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;	$attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
}	}
}	}
# output state of file attributes to be showing	# ------------------------------- output state of file attributes to be showing
$r->print(<<END);	$r->print(<<END);
<b><font color="#666666">Display file attributes</font></b><br />	<b><font color="#666666">Display file attributes</font></b><br />
<form method="post" name="fileattr" action="$uri"	<form method="post" name="fileattr" action="$uri"
enctype="application/x-www-form-urlencoded">	enctype="application/x-www-form-urlencoded">
<table border=0><tr>	<table border=0><tr>
<td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Size</td>	<td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Size</td>
<td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Last	<td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Last access</td>
access</td>	<td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last modified</td>
<td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last	<td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> All versions</td>
modified</td>
</tr><tr>	</tr><tr>
<td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Author</td>	<td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Author</td>
<td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Keywords</td>	<td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Keywords</td>
<td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Language</td>	<td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Language</td>
	<td> </td>
</tr></table>	</tr></table>
<input type="hidden" name="dirPointer" value="on" />	<input type="hidden" name="dirPointer" value="on" />
<input type="hidden" name="acts" value="" />	<input type="hidden" name="acts" value="" />
Line 271 $groupimportbutton	Line 292 $groupimportbutton
</form>	</form>
END	END

# output starting row to the indexed file/directory hierarchy	# ----------------- output starting row to the indexed file/directory hierarchy
my $titleclr="#ddffff";	my $titleclr="#ddffff";
$r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");	$r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
$r->print("<table border=0><tr>\n");	$r->print("<table border=0><tr>\n");
Line 290 END	Line 311 END
if ($hash{'display_attrs_5'} == 1);	if ($hash{'display_attrs_5'} == 1);
$r->print("</tr>");	$r->print("</tr>");

# read in what directories have previously been set to "open"	# ----------------- read in what directories have previously been set to "open"
map {	map {
if ($_ =~ /^diropen_status_/) {	if ($_ =~ /^diropen_status_/) {
my $key = $_;	my $key = $_;
Line 328 END	Line 349 END
$toplevel = $hash{'top.level'};	$toplevel = $hash{'top.level'};
}	}

# if not at top level, provide an uplink arrow	# -------------------------------- if not at top level, provide an uplink arrow
if ($toplevel ne "/res/"){	if ($toplevel ne "/res/"){
my (@uri_com) = split(/\//,$uri);	my (@uri_com) = split(/\//,$uri);
pop @uri_com;	pop @uri_com;
Line 338 END	Line 359 END
$indent = 1;	$indent = 1;
}	}

# recursively go through all the directories and output as appropriate	# -------- recursively go through all the directories and output as appropriate
&scanDir ($r,$toplevel,$indent,\%hash);	&scanDir ($r,$toplevel,$indent,\%hash);

# information useful for group import	# ---------------------------- embed hidden information useful for group import
$r->print("<form name='fnum'>");	$r->print("<form name='fnum'>");
$r->print("<input type='hidden' name='fnum' value='$fnum'></form>");	$r->print("<input type='hidden' name='fnum' value='$fnum'></form>");

# end the tables	# -------------------------------------------------------------- end the tables
$r->print("</table>");	$r->print("</table>");
$r->print("</td></tr></table>");	$r->print("</td></tr></table>");

# end the output and return	# --------------------------------------------------- end the output and return
$r->print("</body></html>\n");	$r->print("</body></html>\n");
untie(%hash);	untie(%hash);
} else {	} else {
Line 360 END	Line 381 END
return OK;	return OK;
}	}


# ----------------------------------------------- recursive scan of a directory	# ----------------------------------------------- recursive scan of a directory
sub scanDir {	sub scanDir {
my ($r,$startdir,$indent,$hashref)=@_;	my ($r,$startdir,$indent,$hashref)=@_;
Line 373 sub scanDir {	Line 393 sub scanDir {
foreach my $line (@list) {	foreach my $line (@list) {
my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);	my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);
next if $strip =~ /.*\.meta$/;	next if $strip =~ /.*\.meta$/;
	my (@fileparts) = split(/\./,$strip);
	if ($hash{'display_attrs_6'} != 1) {
	if (scalar(@fileparts) >= 3) {
	my $fext = pop @fileparts;
	my $ov = pop @fileparts;
	my $fname = join ('.',@fileparts,$fext);
	next if (grep /$fname/,@list and $ov =~ /\d+/);
	}
	}

if ($dom eq "domain") {	if ($dom eq "domain") {
$compuri = join('',$strip,"/"); # dom list has /res/<domain name>	$compuri = join('',$strip,"/"); # dom list has /res/<domain name>
$curdir = $compuri;	$curdir = $compuri;
Line 458 sub match_ext {	Line 488 sub match_ext {
}	}

# ------------------------------- displays one line in appropriate table format	# ------------------------------- displays one line in appropriate table format
sub display_line{	sub display_line {
my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;	my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
my (@pathfn, $fndir, $fnptr);	my (@pathfn, $fndir, $fnptr);
my $dirptr=16384;	my $dirptr=16384;
Line 727 sub start_fresh_session {	Line 757 sub start_fresh_session {
}	}

1;	1;
__END__
	=head1 NAME

	Apache::lonindexer - mod_perl module for cross server filesystem browsing

	=head1 SYNOPSIS

	Invoked by /etc/httpd/conf/srm.conf:

	<LocationMatch "^/res.*/$">
	SetHandler perl-script
	PerlHandler Apache::lonindexer
	</LocationMatch>

	=head1 INTRODUCTION

	This module enables a scheme of browsing across a cross server.

	This is part of the LearningOnline Network with CAPA project
	described at http://www.lon-capa.org.

	=head1 BEGIN SUBROUTINE

	This routine is only run once after compilation.

	=over 4

	=item *

	Initializes %language hash table.

	=back

	=head1 HANDLER SUBROUTINE

	This routine is called by Apache and mod_perl.

	=over 4

	=item *

	read in machine configuration variables

	=item *

	see if called from an interactive mode

	=item *

	refresh environment with user database values (in %hash)

	=item *

	define extra fields and buttons in case of special mode

	=item *

	set catalogmodefunctions to have extra needed javascript functionality

	=item *

	print header

	=item *

	evaluate actions from previous page (both cumulatively and chronologically)

	=item *

	output title

	=item *

	get state of file attributes to be showing

	=item *

	output state of file attributes to be showing

	=item *

	output starting row to the indexed file/directory hierarchy

	=item *

	read in what directories have previously been set to "open"

	=item *

	if not at top level, provide an uplink arrow

	=item *

	recursively go through all the directories and output as appropriate

	=item *

	information useful for group import

	=item *

	end the tables

	=item *

	end the output and return

	=back

	=head1 OTHER SUBROUTINES

	=over 4

	=item *

	scanDir - recursive scan of a directory

	=item *

	get_list - get complete matched list based on the uri (returns an array)

	=item *

	match_ext - filters out files based on extensions (returns an array)

	=item *

	display_line - displays one line in appropriate table format

	=item *

	begin_form - prints the beginning of a form for directory or file link

	=item *

	get_unprocessed_cgi - grab unprocessed CGI variables that may have been
	appended to URL

	=item *

	start_fresh_session - settings whenever the user causes the indexer window
	to be launched

	=back

	=cut

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	Added in v.1.23