--- loncom/interface/loncommon.pm 2001/12/13 01:31:39 1.16
+++ loncom/interface/loncommon.pm 2003/12/30 20:47:23 1.168
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# a pile of common routines
#
-# $Id: loncommon.pm,v 1.16 2001/12/13 01:31:39 harris41 Exp $
+# $Id: loncommon.pm,v 1.168 2003/12/30 20:47:23 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,139 +25,1760 @@
#
# http://www.lon-capa.org/
#
-# YEAR=2001
-# 2/13-12/7 Guy Albertelli
-# 12/11,12/12 Scott Harrison
# Makes a table out of the previous attempts
# Inputs result_from_symbread, user, domain, course_id
# Reads in non-network-related .tab files
+# POD header:
+
+=pod
+
+=head1 NAME
+
+Apache::loncommon - pile of common routines
+
+=head1 SYNOPSIS
+
+Common routines for manipulating connections, student answers,
+ domains, common Javascript fragments, etc.
+
+=head1 OVERVIEW
+
+A collection of commonly used subroutines that don't have a natural
+home anywhere else. This collection helps remove
+redundancy from other modules and increase efficiency of memory usage.
+
+=cut
+
+# End of POD header
package Apache::loncommon;
use strict;
-use POSIX qw(strftime);
-use Apache::Constants qw(:common);
+use Apache::lonnet();
+use GDBM_File;
+use POSIX qw(strftime mktime);
+use Apache::Constants qw(:common :http :methods);
use Apache::lonmsg();
+use Apache::lonmenu();
+use Apache::lonlocal;
+use HTML::Entities;
+
+my $readit;
+##
+## Global Variables
+##
+
+# ----------------------------------------------- Filetypes/Languages/Copyright
my %language;
+my %supported_language;
my %cprtag;
my %fe; my %fd;
-my %fc;
+my %category_extensions;
+
+# ---------------------------------------------- Designs
+
+my %designhash;
-# ----------------------------------------------------------------------- BEGIN
-sub BEGIN {
+# ---------------------------------------------- Thesaurus variables
+#
+# %Keywords:
+# A hash used by &keyword to determine if a word is considered a keyword.
+# $thesaurus_db_file
+# Scalar containing the full path to the thesaurus database.
+
+my %Keywords;
+my $thesaurus_db_file;
+
+#
+# Initialize values from language.tab, copyright.tab, filetypes.tab,
+# thesaurus.tab, and filecategories.tab.
+#
+BEGIN {
+ # Variable initialization
+ $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
+ #
+ unless ($readit) {
# ------------------------------------------------------------------- languages
{
- my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
- '/language.tab');
- if ($fh) {
- while (<$fh>) {
- next if /^\#/;
- chomp;
- my ($key,$val)=(split(/\s+/,$_,2));
- $language{$key}=$val;
- }
- }
+ my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
+ '/language.tab';
+ if ( open(my $fh,"<$langtabfile") ) {
+ while (<$fh>) {
+ next if /^\#/;
+ chomp;
+ my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_));
+ $language{$key}=$val.' - '.$enc;
+ if ($sup) {
+ $supported_language{$key}=$sup;
+ }
+ }
+ close($fh);
+ }
}
# ------------------------------------------------------------------ copyrights
{
- my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonIncludes'}.
- '/copyright.tab');
- if ($fh) {
- while (<$fh>) {
- next if /^\#/;
- chomp;
- my ($key,$val)=(split(/\s+/,$_,2));
- $cprtag{$key}=$val;
- }
- }
+ my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
+ '/copyright.tab';
+ if ( open (my $fh,"<$copyrightfile") ) {
+ while (<$fh>) {
+ next if /^\#/;
+ chomp;
+ my ($key,$val)=(split(/\s+/,$_,2));
+ $cprtag{$key}=$val;
+ }
+ close($fh);
+ }
}
+
+# -------------------------------------------------------------- domain designs
+
+ my $filename;
+ my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
+ opendir(DIR,$designdir);
+ while ($filename=readdir(DIR)) {
+ my ($domain)=($filename=~/^(\w+)\./);
+ {
+ my $designfile = $designdir.'/'.$filename;
+ if ( open (my $fh,"<$designfile") ) {
+ while (<$fh>) {
+ next if /^\#/;
+ chomp;
+ my ($key,$val)=(split(/\=/,$_));
+ if ($val) { $designhash{$domain.'.'.$key}=$val; }
+ }
+ close($fh);
+ }
+ }
+
+ }
+ closedir(DIR);
+
+
# ------------------------------------------------------------- file categories
{
- my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
- '/filecategories.tab');
- if ($fh) {
- while (<$fh>) {
- next if /^\#/;
- chomp;
- my ($key,$val)=(split(/\s+/,$_,2));
- push @{$fc{$key}},$val;
- }
- }
+ my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
+ '/filecategories.tab';
+ if ( open (my $fh,"<$categoryfile") ) {
+ while (<$fh>) {
+ next if /^\#/;
+ chomp;
+ my ($extension,$category)=(split(/\s+/,$_,2));
+ push @{$category_extensions{lc($category)}},$extension;
+ }
+ close($fh);
+ }
+
}
# ------------------------------------------------------------------ file types
{
- my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
- '/filetypes.tab');
- if ($fh) {
+ my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
+ '/filetypes.tab';
+ if ( open (my $fh,"<$typesfile") ) {
while (<$fh>) {
- next if (/^\#/);
- chomp;
- my ($ending,$emb,$descr)=split(/\s+/,$_,3);
- if ($descr ne '') {
- $fe{$ending}=lc($emb);
- $fd{$ending}=$descr;
- }
- }
+ next if (/^\#/);
+ chomp;
+ my ($ending,$emb,$descr)=split(/\s+/,$_,3);
+ if ($descr ne '') {
+ $fe{$ending}=lc($emb);
+ $fd{$ending}=$descr;
+ }
+ }
+ close($fh);
+ }
+ }
+ &Apache::lonnet::logthis(
+ "INFO: Read file types");
+ $readit=1;
+ } # end of unless($readit)
+
+}
+
+###############################################################
+## HTML and Javascript Helper Functions ##
+###############################################################
+
+=pod
+
+=head1 HTML and Javascript Functions
+
+=over 4
+
+=item * browser_and_searcher_javascript ()
+
+XXReturns a string
+containing javascript with two functions, C and
+C. Returned string does not contain EscriptE
+tags.
+
+=item * openbrowser(formname,elementname,only,omit) [javascript]
+
+inputs: formname, elementname, only, omit
+
+formname and elementname indicate the name of the html form and name of
+the element that the results of the browsing selection are to be placed in.
+
+Specifying 'only' will restrict the browser to displaying only files
+with the given extension. Can be a comma seperated list.
+
+Specifying 'omit' will restrict the browser to NOT displaying files
+with the given extension. Can be a comma seperated list.
+
+=item * opensearcher(formname, elementname) [javascript]
+
+Inputs: formname, elementname
+
+formname and elementname specify the name of the html form and the name
+of the element the selection from the search results will be placed in.
+
+=cut
+
+sub browser_and_searcher_javascript {
+ return <
+ var stdeditbrowser;
+ function openstdbrowser(formname,uname,udom,roleflag) {
+ var url = '/adm/pickstudent?';
+ var filter;
+ eval('filter=document.'+formname+'.'+uname+'.value;');
+ if (filter != null) {
+ if (filter != '') {
+ url += 'filter='+filter+'&';
+ }
+ }
+ url += 'form=' + formname + '&unameelement='+uname+
+ '&udomelement='+udom;
+ if (roleflag) { url+="&roles=1"; }
+ var title = 'Student_Browser';
+ var options = 'scrollbars=1,resizable=1,menubar=0';
+ options += ',width=700,height=600';
+ stdeditbrowser = open(url,title,options,'1');
+ stdeditbrowser.focus();
+ }
+
+ENDSTDBRW
+}
+
+sub selectstudent_link {
+ my ($form,$unameele,$udomele)=@_;
+ if ($ENV{'request.course.id'}) {
+ unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
+ return '';
+ }
+ return "".&mt('Select User')."";
+ }
+ if ($ENV{'request.role'}=~/^(au|dc|su)/) {
+ return "".&mt('Select User')."";
+ }
+ return '';
+}
+
+sub coursebrowser_javascript {
+ my ($domainfilter)=@_;
+ return (<
+ var stdeditbrowser;
+ function opencrsbrowser(formname,uname,udom) {
+ var url = '/adm/pickcourse?';
+ var filter;
+ if (filter != null) {
+ if (filter != '') {
+ url += 'filter='+filter+'&';
+ }
+ }
+ var domainfilter='$domainfilter';
+ if (domainfilter != null) {
+ if (domainfilter != '') {
+ url += 'domainfilter='+domainfilter+'&';
+ }
+ }
+ url += 'form=' + formname + '&cnumelement='+uname+
+ '&cdomelement='+udom;
+ var title = 'Course_Browser';
+ var options = 'scrollbars=1,resizable=1,menubar=0';
+ options += ',width=700,height=600';
+ stdeditbrowser = open(url,title,options,'1');
+ stdeditbrowser.focus();
+ }
+
+ENDSTDBRW
+}
+
+sub selectcourse_link {
+ my ($form,$unameele,$udomele)=@_;
+ return "".&mt('Select Course')."";
+}
+
+=pod
+
+=item * linked_select_forms(...)
+
+linked_select_forms returns a string containing a block
+and html for two