loncom/interface/loncommon.pm - diff

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Diff for /loncom/interface/loncommon.pm between versions 1.241 and 1.258

version 1.241, 2004/12/04 02:05:23	version 1.258, 2005/04/07 06:56:22
Line 55 redundancy from other modules and increa	Line 55 redundancy from other modules and increa
package Apache::loncommon;	package Apache::loncommon;

use strict;	use strict;
use Apache::lonnet();	use Apache::lonnet;
use GDBM_File;	use GDBM_File;
use POSIX qw(strftime mktime);	use POSIX qw(strftime mktime);
use Apache::Constants qw(:common :http :methods);	use Apache::Constants qw(:common :http :methods);
Line 311 END	Line 311 END
}	}

sub lastresurl {	sub lastresurl {
if ($ENV{'environment.lastresurl'}) {	if ($env{'environment.lastresurl'}) {
return $ENV{'environment.lastresurl'}	return $env{'environment.lastresurl'}
} else {	} else {
return '/res';	return '/res';
}	}
Line 329 sub storeresurl {	Line 329 sub storeresurl {

sub studentbrowser_javascript {	sub studentbrowser_javascript {
unless (	unless (
(($ENV{'request.course.id'}) &&	(($env{'request.course.id'}) &&
(&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})))	(&Apache::lonnet::allowed('srm',$env{'request.course.id'})))
\|\| ($ENV{'request.role'}=~/^(au\|dc\|su)/)	\|\| ($env{'request.role'}=~/^(au\|dc\|su)/)
) { return ''; }	) { return ''; }
return (<<'ENDSTDBRW');	return (<<'ENDSTDBRW');
<script type="text/javascript" language="Javascript" >	<script type="text/javascript" language="Javascript" >
Line 360 ENDSTDBRW	Line 360 ENDSTDBRW

sub selectstudent_link {	sub selectstudent_link {
my ($form,$unameele,$udomele)=@_;	my ($form,$unameele,$udomele)=@_;
if ($ENV{'request.course.id'}) {	if ($env{'request.course.id'}) {
unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {	unless (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
return '';	return '';
}	}
return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.	return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
'","'.$udomele.'");'."'>".&mt('Select User')."</a>";	'","'.$udomele.'");'."'>".&mt('Select User')."</a>";
}	}
if ($ENV{'request.role'}=~/^(au\|dc\|su)/) {	if ($env{'request.role'}=~/^(au\|dc\|su)/) {
return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.	return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
'","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";	'","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
}	}
Line 547 END	Line 547 END
$result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";	$result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
foreach my $value (sort(keys(%$hashref))) {	foreach my $value (sort(keys(%$hashref))) {
$result.=" <option value=\"$value\" ";	$result.=" <option value=\"$value\" ";
$result.=" selected=\"true\" " if ($value eq $firstdefault);	$result.=" selected=\"selected\" " if ($value eq $firstdefault);
$result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";	$result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
}	}
$result .= "</select>\n";	$result .= "</select>\n";
Line 557 END	Line 557 END
my $seconddefault = $hashref->{$firstdefault}->{'default'};	my $seconddefault = $hashref->{$firstdefault}->{'default'};
foreach my $value (sort(keys(%select2))) {	foreach my $value (sort(keys(%select2))) {
$result.=" <option value=\"$value\" ";	$result.=" <option value=\"$value\" ";
$result.=" selected=\"true\" " if ($value eq $seconddefault);	$result.=" selected=\"selected\" " if ($value eq $seconddefault);
$result.=">".&mt($select2{$value})."</option>\n";	$result.=">".&mt($select2{$value})."</option>\n";
}	}
$result .= "</select>\n";	$result .= "</select>\n";
Line 593 sub help_open_topic {	Line 593 sub help_open_topic {
my ($topic, $text, $stayOnPage, $width, $height) = @_;	my ($topic, $text, $stayOnPage, $width, $height) = @_;
$text = "" if (not defined $text);	$text = "" if (not defined $text);
$stayOnPage = 0 if (not defined $stayOnPage);	$stayOnPage = 0 if (not defined $stayOnPage);
if ($ENV{'browser.interface'} eq 'textual' \|\|	if ($env{'browser.interface'} eq 'textual' \|\|
$ENV{'environment.remote'} eq 'off' ) {	$env{'environment.remote'} eq 'off' ) {
$stayOnPage=1;	$stayOnPage=1;
}	}
$width = 350 if (not defined $width);	$width = 350 if (not defined $width);
Line 659 sub help_open_menu {	Line 659 sub help_open_menu {
my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;	my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
$text = "" if (not defined $text);	$text = "" if (not defined $text);
$stayOnPage = 0 if (not defined $stayOnPage);	$stayOnPage = 0 if (not defined $stayOnPage);
if ($ENV{'browser.interface'} eq 'textual' \|\|	if ($env{'browser.interface'} eq 'textual' \|\|
$ENV{'environment.remote'} eq 'off' ) {	$env{'environment.remote'} eq 'off' ) {
$stayOnPage=1;	$stayOnPage=1;
}	}
$width = 620 if (not defined $width);	$width = 620 if (not defined $width);
Line 687 sub help_open_menu {	Line 687 sub help_open_menu {
"<table bgcolor='#773311' cellspacing='1' cellpadding='1' border='0'><tr>".	"<table bgcolor='#773311' cellspacing='1' cellpadding='1' border='0'><tr>".
"<td bgcolor='#886622'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";	"<td bgcolor='#886622'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
}	}
	my $html=&Apache::lonxml::xmlbegin();
my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");	my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
$template .= <<"ENDTEMPLATE";	$template .= <<"ENDTEMPLATE";
<script type="text/javascript">	<script type="text/javascript">
//<!-- BEGIN LON-CAPA Internal	// <!-- BEGIN LON-CAPA Internal
function helpMenu(caller) {	// <![CDATA[
if (caller == 'open') {	function helpMenu(target) {
newWindow = window.open("","helpmenu","HEIGHT=$height,WIDTH=$width,resize=yes,scrollbars=yes" )	var caller = this;
caller = newWindow.document	if (target == 'open') {
} else {	var newWindow = null;
caller = this.document	try {
}	newWindow = window.open("/adm/rat/empty.html","helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
caller.write("<html><head><title>LON-CAPA Help Menu</title><meta http-equiv='pragma' content='no-cache'></head>")	}
caller.write("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")	catch(error) {
caller.write("</html>")	writeHelp(caller);
caller.close()	return;
if (caller == newWindow.document) {	}
caller.focus()	if (newWindow) {
	caller = newWindow;
	}
}	}
	writeHelp(caller);
	return;
}	}
	function writeHelp(caller) {
	caller.document.write('$html<head><title>LON-CAPA Help Menu</title><meta http-equiv="pragma" content="no-cache"></head>')
	caller.document.write("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
	caller.document.write("</html>")
	caller.document.close()
	caller.focus()
	}
	// ]]>
// END LON-CAPA Internal -->	// END LON-CAPA Internal -->
</script>	</script>
<a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>	<a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>
Line 729 ENDTEMPLATE	Line 742 ENDTEMPLATE

sub help_open_bug {	sub help_open_bug {
my ($topic, $text, $stayOnPage, $width, $height) = @_;	my ($topic, $text, $stayOnPage, $width, $height) = @_;
unless ($ENV{'user.adv'}) { return ''; }	unless ($env{'user.adv'}) { return ''; }
unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }	unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
$text = "" if (not defined $text);	$text = "" if (not defined $text);
$stayOnPage = 0 if (not defined $stayOnPage);	$stayOnPage = 0 if (not defined $stayOnPage);
if ($ENV{'browser.interface'} eq 'textual' \|\|	if ($env{'browser.interface'} eq 'textual' \|\|
$ENV{'environment.remote'} eq 'off' ) {	$env{'environment.remote'} eq 'off' ) {
$stayOnPage=1;	$stayOnPage=1;
}	}
$width = 600 if (not defined $width);	$width = 600 if (not defined $width);
Line 774 ENDTEMPLATE	Line 787 ENDTEMPLATE

sub help_open_faq {	sub help_open_faq {
my ($topic, $text, $stayOnPage, $width, $height) = @_;	my ($topic, $text, $stayOnPage, $width, $height) = @_;
unless ($ENV{'user.adv'}) { return ''; }	unless ($env{'user.adv'}) { return ''; }
unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }	unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
$text = "" if (not defined $text);	$text = "" if (not defined $text);
$stayOnPage = 0 if (not defined $stayOnPage);	$stayOnPage = 0 if (not defined $stayOnPage);
if ($ENV{'browser.interface'} eq 'textual' \|\|	if ($env{'browser.interface'} eq 'textual' \|\|
$ENV{'environment.remote'} eq 'off' ) {	$env{'environment.remote'} eq 'off' ) {
$stayOnPage=1;	$stayOnPage=1;
}	}
$width = 350 if (not defined $width);	$width = 350 if (not defined $width);
Line 822 ENDTEMPLATE	Line 835 ENDTEMPLATE

=pod	=pod

	=item * change_content_javascript():

	This and the next function allow you to create small sections of an
	otherwise static HTML page that you can update on the fly with
	Javascript, even in Netscape 4.

	The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
	must be written to the HTML page once. It will prove the Javascript
	function "change(name, content)". Calling the change function with the
	name of the section
	you want to update, matching the name passed to C<changable_area>, and
	the new content you want to put in there, will put the content into
	that area.

	B<Note>: Netscape 4 only reserves enough space for the changable area
	to contain room for the original contents. You need to "make space"
	for whatever changes you wish to make, and be B<sure> to check your
	code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
	it's adequate for updating a one-line status display, but little more.
	This script will set the space to 100% width, so you only need to
	worry about height in Netscape 4.

	Modern browsers are much less limiting, and if you can commit to the
	user not using Netscape 4, this feature may be used freely with
	pretty much any HTML.

	=cut

	sub change_content_javascript {
	# If we're on Netscape 4, we need to use Layer-based code
	if ($env{'browser.type'} eq 'netscape' &&
	$env{'browser.version'} =~ /^4\./) {
	return (<<NETSCAPE4);
	function change(name, content) {
	doc = document.layers[name+"___escape"].layers[0].document;
	doc.open();
	doc.write(content);
	doc.close();
	}
	NETSCAPE4
	} else {
	# Otherwise, we need to use semi-standards-compliant code
	# (technically, "innerHTML" isn't standard but the equivalent
	# is really scary, and every useful browser supports it
	return (<<DOMBASED);
	function change(name, content) {
	element = document.getElementById(name);
	element.innerHTML = content;
	}
	DOMBASED
	}
	}

	=pod

	=item * changable_area($name, $origContent):

	This provides a "changable area" that can be modified on the fly via
	the Javascript code provided in C<change_content_javascript>. $name is
	the name you will use to reference the area later; do not repeat the
	same name on a given HTML page more then once. $origContent is what
	the area will originally contain, which can be left blank.

	=cut

	sub changable_area {
	my ($name, $origContent) = @_;

	if ($env{'browser.type'} eq 'netscape' &&
	$env{'browser.version'} =~ /^4\./) {
	# If this is netscape 4, we need to use the Layer tag
	return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
	} else {
	return "<span id='$name'>$origContent</span>";
	}
	}

	=pod

	=back

	=head1 Excel and CSV file utility routines

	=over 4

	=cut

	###############################################################
	###############################################################

	=pod

=item * csv_translate($text)	=item * csv_translate($text)

Translate $text to allow it to be output as a 'comma separated values'	Translate $text to allow it to be output as a 'comma separated values'
Line 838 sub csv_translate {	Line 943 sub csv_translate {
return $text;	return $text;
}	}


###############################################################	###############################################################
###############################################################	###############################################################

Line 862 Currently supported formats:	Line 966 Currently supported formats:

=item h3	=item h3

	=item h4

	=item i

=item date	=item date

=back	=back
Line 884 sub define_excel_formats {	Line 992 sub define_excel_formats {
$format->{'h1'} = $workbook->add_format(bold=>1, size=>18);	$format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
$format->{'h2'} = $workbook->add_format(bold=>1, size=>16);	$format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
$format->{'h3'} = $workbook->add_format(bold=>1, size=>14);	$format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
	$format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
	$format->{'i'} = $workbook->add_format(italic=>1);
$format->{'date'} = $workbook->add_format(num_format=>	$format->{'date'} = $workbook->add_format(num_format=>
'mm/dd/yyyy hh:mm:ss');	'mm/dd/yyyy hh:mm:ss');
return $format;	return $format;
Line 894 sub define_excel_formats {	Line 1004 sub define_excel_formats {

=pod	=pod

=item * change_content_javascript():	=item * create_workbook

This and the next function allow you to create small sections of an
otherwise static HTML page that you can update on the fly with
Javascript, even in Netscape 4.

The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)	Create an Excel worksheet. If it fails, output message on the
must be written to the HTML page once. It will prove the Javascript	request object and return undefs.
function "change(name, content)". Calling the change function with the
name of the section
you want to update, matching the name passed to C<changable_area>, and
the new content you want to put in there, will put the content into
that area.

B<Note>: Netscape 4 only reserves enough space for the changable area	Inputs: Apache request object
to contain room for the original contents. You need to "make space"
for whatever changes you wish to make, and be B<sure> to check your
code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
it's adequate for updating a one-line status display, but little more.
This script will set the space to 100% width, so you only need to
worry about height in Netscape 4.

Modern browsers are much less limiting, and if you can commit to the	Returns (undef) on failure,
user not using Netscape 4, this feature may be used freely with	Excel worksheet object, scalar with filename, and formats
pretty much any HTML.	from &Apache::loncommon::define_excel_formats on success

=cut	=cut

sub change_content_javascript {	###############################################################
# If we're on Netscape 4, we need to use Layer-based code	###############################################################
if ($ENV{'browser.type'} eq 'netscape' &&	sub create_workbook {
$ENV{'browser.version'} =~ /^4\./) {	my ($r) = @_;
return (<<NETSCAPE4);	#
function change(name, content) {	# Create the excel spreadsheet
doc = document.layers[name+"___escape"].layers[0].document;	my $filename = '/prtspool/'.
doc.open();	$env{'user.name'}.'_'.$env{'user.domain'}.'_'.
doc.write(content);	time.'_'.rand(1000000000).'.xls';
doc.close();	my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
}	if (! defined($workbook)) {
NETSCAPE4	$r->log_error("Error creating excel spreadsheet $filename: $!");
} else {	$r->print('<p>'.&mt("Unable to create new Excel file. ".
# Otherwise, we need to use semi-standards-compliant code	"This error has been logged. ".
# (technically, "innerHTML" isn't standard but the equivalent	"Please alert your LON-CAPA administrator").
# is really scary, and every useful browser supports it	'</p>');
return (<<DOMBASED);	return (undef);
function change(name, content) {
element = document.getElementById(name);
element.innerHTML = content;
}
DOMBASED
}	}
	#
	$workbook->set_tempdir('/home/httpd/perl/tmp');
	#
	my $format = &Apache::loncommon::define_excel_formats($workbook);
	return ($workbook,$filename,$format);
}	}

	###############################################################
	###############################################################

=pod	=pod

=item * changable_area($name, $origContent):	=item * create_text_file

This provides a "changable area" that can be modified on the fly via	Create a file to write to and eventually make available to the usre.
the Javascript code provided in C<change_content_javascript>. $name is	If file creation fails, outputs an error message on the request object and
the name you will use to reference the area later; do not repeat the	return undefs.
same name on a given HTML page more then once. $origContent is what
the area will originally contain, which can be left blank.

=cut	Inputs: Apache request object, and file suffix

sub changable_area {	Returns (undef) on failure,
my ($name, $origContent) = @_;	Filehandle and filename on success.

if ($ENV{'browser.type'} eq 'netscape' &&	=cut
$ENV{'browser.version'} =~ /^4\./) {
# If this is netscape 4, we need to use the Layer tag	###############################################################
return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";	###############################################################
} else {	sub create_text_file {
return "<span id='$name'>$origContent</span>";	my ($r,$suffix) = @_;
	if (! defined($suffix)) { $suffix = 'txt'; };
	my $fh;
	my $filename = '/prtspool/'.
	$env{'user.name'}.'_'.$env{'user.domain'}.'_'.
	time.'_'.rand(1000000000).'.'.$suffix;
	$fh = Apache::File->new('>/home/httpd'.$filename);
	if (! defined($fh)) {
	$r->log_error("Couldn't open $filename for output $!");
	$r->print("Problems occured in creating the output file. ".
	"This error has been logged. ".
	"Please alert your LON-CAPA administrator.");
}	}
	return ($fh,$filename)
}	}

=pod
	=pod

=back	=back

Line 1033 sub multiple_select_form {	Line 1142 sub multiple_select_form {
$output.="\n<select name='$name' size='$size' multiple='1'>";	$output.="\n<select name='$name' size='$size' multiple='1'>";
foreach (sort(keys(%hash))) {	foreach (sort(keys(%hash))) {
$output.='<option value="'.$_.'" ';	$output.='<option value="'.$_.'" ';
$output.='selected ' if ($selected{$_});	$output.='selected="selected" ' if ($selected{$_});
$output.='>'.$hash{$_}."</option>\n";	$output.='>'.$hash{$_}."</option>\n";
}	}
$output.="</select>\n";	$output.="</select>\n";
Line 1064 sub select_form {	Line 1173 sub select_form {
}	}
foreach (@keys) {	foreach (@keys) {
$selectform.="<option value=\"$_\" ".	$selectform.="<option value=\"$_\" ".
($_ eq $def ? 'selected' : '').	($_ eq $def ? 'selected="selected" ' : '').
">".&mt($hash{$_})."</option>\n";	">".&mt($hash{$_})."</option>\n";
}	}
$selectform.="</select>";	$selectform.="</select>";
Line 1101 sub select_level_form {	Line 1210 sub select_level_form {
my $selectform = "<select name=\"$name\" size=\"1\">\n";	my $selectform = "<select name=\"$name\" size=\"1\">\n";
for (my $i=0; $i<=18; $i++) {	for (my $i=0; $i<=18; $i++) {
$selectform.="<option value=\"$i\" ".	$selectform.="<option value=\"$i\" ".
($i==$deflevel ? 'selected' : '').	($i==$deflevel ? 'selected="selected" ' : '').
">".&gradeleveldescription($i)."</option>\n";	">".&gradeleveldescription($i)."</option>\n";
}	}
$selectform.="</select>";	$selectform.="</select>";
Line 1131 sub select_dom_form {	Line 1240 sub select_dom_form {
my $selectdomain = "<select name=\"$name\" size=\"1\">\n";	my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
foreach (@domains) {	foreach (@domains) {
$selectdomain.="<option value=\"$_\" ".	$selectdomain.="<option value=\"$_\" ".
($_ eq $defdom ? 'selected' : '').	($_ eq $defdom ? 'selected="selected" ' : '').
">$_</option>\n";	">$_</option>\n";
}	}
$selectdomain.="</select>";	$selectdomain.="</select>";
Line 1230 Outputs:	Line 1339 Outputs:
###############################################################	###############################################################
###############################################################	###############################################################
sub decode_user_agent {	sub decode_user_agent {
	my ($r)=@_;
my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});	my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});	my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
my $httpbrowser=$ENV{"HTTP_USER_AGENT"};	my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
	if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
my $clientbrowser='unknown';	my $clientbrowser='unknown';
my $clientversion='0';	my $clientversion='0';
my $clientmathml='';	my $clientmathml='';
Line 1793 if the user does not	Line 1904 if the user does not
sub nickname {	sub nickname {
my ($uname,$udom)=@_;	my ($uname,$udom)=@_;
my %names;	my %names;
if ($uname eq $ENV{'user.name'} &&	if ($uname eq $env{'user.name'} &&
$udom eq $ENV{'user.domain'}) {	$udom eq $env{'user.domain'}) {
%names=('nickname' => $ENV{'environment.nickname'} ,	%names=('nickname' => $env{'environment.nickname'} ,
'firstname' => $ENV{'environment.firstname'} ,	'firstname' => $env{'environment.firstname'} ,
'middlename' => $ENV{'environment.middlename'},	'middlename' => $env{'environment.middlename'},
'lastname' => $ENV{'environment.lastname'} ,	'lastname' => $env{'environment.lastname'} ,
'generation' => $ENV{'environment.generation'});	'generation' => $env{'environment.generation'});
} else {	} else {
%names=&Apache::lonnet::get('environment',	%names=&Apache::lonnet::get('environment',
['nickname','firstname','middlename',	['nickname','firstname','middlename',
Line 1830 Gets a users screenname and returns it a	Line 1941 Gets a users screenname and returns it a

sub screenname {	sub screenname {
my ($uname,$udom)=@_;	my ($uname,$udom)=@_;
if ($uname eq $ENV{'user.name'} &&	if ($uname eq $env{'user.name'} &&
$udom eq $ENV{'user.domain'}) {return $ENV{'environment.screenname'};}	$udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);	my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
return $names{'screenname'};	return $names{'screenname'};
}	}
Line 2079 sub display_languages {	Line 2190 sub display_languages {
$languages{$_}=1;	$languages{$_}=1;
}	}
&get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);	&get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
if ($ENV{'form.displaylanguage'}) {	if ($env{'form.displaylanguage'}) {
foreach (split(/\s(\,\|\;\|\:)\s/,$ENV{'form.displaylanguage'})) {	foreach (split(/\s(\,\|\;\|\:)\s/,$env{'form.displaylanguage'})) {
$languages{$_}=1;	$languages{$_}=1;
}	}
}	}
Line 2089 sub display_languages {	Line 2200 sub display_languages {

sub preferred_languages {	sub preferred_languages {
my @languages=();	my @languages=();
if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) {	if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
@languages=(@languages,split(/\s(\,\|\;\|\:)\s/,	@languages=(@languages,split(/\s(\,\|\;\|\:)\s/,
$ENV{'course.'.$ENV{'request.course.id'}.'.languages'}));	$env{'course.'.$env{'request.course.id'}.'.languages'}));
}	}
if ($ENV{'environment.languages'}) {	if ($env{'environment.languages'}) {
@languages=split(/\s(\,\|\;\|\:)\s/,$ENV{'environment.languages'});	@languages=split(/\s(\,\|\;\|\:)\s/,$env{'environment.languages'});
}	}
my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];	my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
if ($browser) {	if ($browser) {
@languages=(@languages,split(/\s(\,\|\;\|\:)\s/,$browser));	@languages=(@languages,split(/\s(\,\|\;\|\:)\s/,$browser));
}	}
if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) {	if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
@languages=(@languages,	@languages=(@languages,
$Apache::lonnet::domain_lang_def{$ENV{'user.domain'}});	$Apache::lonnet::domain_lang_def{$env{'user.domain'}});
}	}
if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) {	if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
@languages=(@languages,	@languages=(@languages,
$Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}});	$Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
}	}
if ($Apache::lonnet::domain_lang_def{	if ($Apache::lonnet::domain_lang_def{
$Apache::lonnet::perlvar{'lonDefDomain'}}) {	$Apache::lonnet::perlvar{'lonDefDomain'}}) {
Line 2325 sub get_student_answers {	Line 2436 sub get_student_answers {

=item * &submlink()	=item * &submlink()

Inputs: $text $uname $udom $symb	Inputs: $text $uname $udom $symb $target

Returns: A link to grades.pm such as to see the SUBM view of a student	Returns: A link to grades.pm such as to see the SUBM view of a student

Line 2333 Returns: A link to grades.pm such as to	Line 2444 Returns: A link to grades.pm such as to

###############################################	###############################################
sub submlink {	sub submlink {
my ($text,$uname,$udom,$symb)=@_;	my ($text,$uname,$udom,$symb,$target)=@_;
	if (!($uname && $udom)) {
	(my $cursymb, my $courseid,$udom,$uname)=
	&Apache::lonxml::whichuser($symb);
	if (!$symb) { $symb=$cursymb; }
	}
	if (!$symb) { $symb=&Apache::lonnet::symbread(); }
	$symb=&Apache::lonnet::escape($symb);
	if ($target) { $target="target=\"$target\""; }
	return '<a href="/adm/grades?&command=submission&'.
	'symb='.$symb.'&student='.$uname.
	'&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
	}
	##############################################

	=pod

	=item * &pgrdlink()

	Inputs: $text $uname $udom $symb $target

	Returns: A link to grades.pm such as to see the PGRD view of a student

	=cut

	###############################################
	sub pgrdlink {
	my $link=&submlink(@_);
	$link=~s/(&command=submission)/$1&showgrading=yes/;
	return $link;
	}
	##############################################

	=pod

	=item * &pprmlink()

	Inputs: $text $uname $udom $symb $target

	Returns: A link to parmset.pm such as to see the PPRM view of a
	student andn resource

	=cut

	###############################################
	sub pprmlink {
	my ($text,$uname,$udom,$symb,$target)=@_;
if (!($uname && $udom)) {	if (!($uname && $udom)) {
(my $cursymb, my $courseid,$udom,$uname)=	(my $cursymb, my $courseid,$udom,$uname)=
&Apache::lonxml::whichuser($symb);	&Apache::lonxml::whichuser($symb);
if (!$symb) { $symb=$cursymb; }	if (!$symb) { $symb=$cursymb; }
}	}
if (!$symb) { $symb=&symbread(); }	if (!$symb) { $symb=&Apache::lonnet::symbread(); }
return '<a href="/adm/grades?symb='.$symb.'&student='.$uname.	$symb=&Apache::lonnet::escape($symb);
'&userdom='.$udom.'&command=submission">'.$text.'</a>';	if ($target) { $target="target=\"$target\""; }
	return '<a href="/adm/parmset?&command=set&'.
	'symb='.$symb.'&uname='.$uname.
	'&udom='.$udom.'" '.$target.'>'.$text.'</a>';
}	}
##############################################	##############################################

Line 2379 sub maketime {	Line 2539 sub maketime {
sub findallcourses {	sub findallcourses {
my %courses=();	my %courses=();
my $now=time;	my $now=time;
foreach (keys %ENV) {	foreach (keys %env) {
if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {	if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
my ($starttime,$endtime)=$ENV{$_};	my ($starttime,$endtime)=$env{$_};
my $active=1;	my $active=1;
if ($starttime) {	if ($starttime) {
if ($now<$starttime) { $active=0; }	if ($now<$starttime) { $active=0; }
Line 2418 sub determinedomain {	Line 2578 sub determinedomain {
if (! $domain) {	if (! $domain) {
# Determine domain if we have not been given one	# Determine domain if we have not been given one
$domain = $Apache::lonnet::perlvar{'lonDefDomain'};	$domain = $Apache::lonnet::perlvar{'lonDefDomain'};
if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }	if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
if ($ENV{'request.role.domain'}) {	if ($env{'request.role.domain'}) {
$domain=$ENV{'request.role.domain'};	$domain=$env{'request.role.domain'};
}	}
}	}
return $domain;	return $domain;
Line 2465 Returns: value of designparamter $which	Line 2625 Returns: value of designparamter $which
##############################################	##############################################
sub designparm {	sub designparm {
my ($which,$domain)=@_;	my ($which,$domain)=@_;
if ($ENV{'browser.blackwhite'} eq 'on') {	if ($env{'browser.blackwhite'} eq 'on') {
if ($which=~/\.(font\|alink\|vlink\|link)$/) {	if ($which=~/\.(font\|alink\|vlink\|link)$/) {
return '#000000';	return '#000000';
}	}
Line 2476 sub designparm {	Line 2636 sub designparm {
return '#CCCCCC';	return '#CCCCCC';
}	}
}	}
if ($ENV{'environment.color.'.$which}) {	if ($env{'environment.color.'.$which}) {
return $ENV{'environment.color.'.$which};	return $env{'environment.color.'.$which};
}	}
$domain=&determinedomain($domain);	$domain=&determinedomain($domain);
if ($designhash{$domain.'.'.$which}) {	if ($designhash{$domain.'.'.$which}) {
Line 2543 sub bodytag {	Line 2703 sub bodytag {
# Accessibility font enhance	# Accessibility font enhance
unless ($addentries) { $addentries=''; }	unless ($addentries) { $addentries=''; }
my $addstyle='';	my $addstyle='';
if ($ENV{'browser.fontenhance'} eq 'on') {	if ($env{'browser.fontenhance'} eq 'on') {
$addstyle=' font-size: x-large;';	$addstyle=' font-size: x-large;';
}	}
# role and realm	# role and realm
my ($role,$realm)	my ($role,$realm)
=&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);	=&Apache::lonnet::plaintext((split(/\./,$env{'request.role'}))[0]);
# realm	# realm
if ($ENV{'request.course.id'}) {	if ($env{'request.course.id'}) {
$realm=	$realm=
$ENV{'course.'.$ENV{'request.course.id'}.'.description'};	$env{'course.'.$env{'request.course.id'}.'.description'};
}	}
unless ($realm) { $realm=' '; }	unless ($realm) { $realm=' '; }
# Set messages	# Set messages
Line 2569 a:focus { color: red; background: yellow	Line 2729 a:focus { color: red; background: yellow
<body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"	<body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
style="margin-top: 0px;$addstyle" $addentries>	style="margin-top: 0px;$addstyle" $addentries>
END	END
	if ($env{'environment.texengine'} eq 'jsMath') {
	$bodytag.='<script type="text/javascript">
	function NoFontMessage () {}
	</script>'."\n".
	'<script src="/adm/jsMath/jsMath.js"></script>'."\n";
	}

my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.	my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
$lonhttpdPort.$img.'" alt="'.$function.'" />';	$lonhttpdPort.$img.'" alt="'.$function.'" />';
if ($bodyonly) {	if ($bodyonly) {
return $bodytag;	return $bodytag;
} elsif ($ENV{'browser.interface'} eq 'textual') {	} elsif ($env{'browser.interface'} eq 'textual') {
# Accessibility	# Accessibility

return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',	return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
$forcereg).	$forcereg).
'<h1>LON-CAPA: '.$title.'</h1>';	'<h1>LON-CAPA: '.$title.'</h1>';
} elsif ($ENV{'environment.remote'} eq 'off') {	} elsif ($env{'environment.remote'} eq 'off') {
# No Remote	# No Remote
my $roleinfo=(<<ENDROLE);	my $roleinfo=(<<ENDROLE);
<td bgcolor="$tabbg" align="right">	<td bgcolor="$tabbg" align="right">
<font size="2" face="Arial, Helvetica, sans-serif">	<font size="2" face="Arial, Helvetica, sans-serif">
$ENV{'environment.firstname'}	$env{'environment.firstname'}
$ENV{'environment.middlename'}	$env{'environment.middlename'}
$ENV{'environment.lastname'}	$env{'environment.lastname'}
$ENV{'environment.generation'}	$env{'environment.generation'}
</font>	</font>
<br />	<br />
<font size="2" face="Arial, Helvetica, sans-serif">$role</font>	<font size="2" face="Arial, Helvetica, sans-serif">$role</font>
Line 2601 ENDROLE	Line 2768 ENDROLE
$titleinfo = $customtitle;	$titleinfo = $customtitle;
}	}

if ($ENV{'request.state'} eq 'construct') {	if ($env{'request.state'} eq 'construct') {
my ($uname,$thisdisfn)=	my ($uname,$thisdisfn)=
($ENV{'request.filename'} =~ m\|^/home/([^/]+)/public_html/(.*)\|);	($env{'request.filename'} =~ m\|^/home/([^/]+)/public_html/(.*)\|);
my $formaction='/priv/'.$uname.'/'.$thisdisfn;	my $formaction='/priv/'.$uname.'/'.$thisdisfn;
$formaction=~s/\/+/\//g;	$formaction=~s/\/+/\//g;
unless ($customtitle) { #this is for resources; directories have customtitle, and crumbs and select recent are created in lonpubdir.pm	unless ($customtitle) { #this is for resources; directories have customtitle, and crumbs and select recent are created in lonpubdir.pm
Line 2631 ENDROLE	Line 2798 ENDROLE
'cellspacing="3" cellpadding="3">'.	'cellspacing="3" cellpadding="3">'.
'<tr><td rowspan="3" bgcolor="'.$tabbg.'">'.	'<tr><td rowspan="3" bgcolor="'.$tabbg.'">'.
$titleinfo.'</td>'.$roleinfo.'</tr></table>';	$titleinfo.'</td>'.$roleinfo.'</tr></table>';
if ($ENV{'request.state'} eq 'construct') {	if ($env{'request.state'} eq 'construct') {
$bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg,$titletable);	$bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg,$titletable);
} else {	} else {
$bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg).	$bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg).
Line 2647 ENDROLE	Line 2814 ENDROLE
if ($customtitle) {	if ($customtitle) {
$titleinfo = $customtitle;	$titleinfo = $customtitle;
}	}
	#
	# Extra info if you are the DC
	my $dc_info = '';
	if ($env{'user.adv'} && exists($env{'user.role.dc./'.
	$env{'course.'.$env{'request.course.id'}.
	'.domain'}.'/'})) {
	my $cid = $env{'request.course.id'};
	$dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
	$dc_info = '('.$dc_info.')';
	}
	#
return(<<ENDBODY);	return(<<ENDBODY);
$bodytag	$bodytag
<table width="100%" cellspacing="0" border="0" cellpadding="0">	<table width="100%" cellspacing="0" border="0" cellpadding="0">
Line 2656 $upperleft</td>	Line 2834 $upperleft</td>
</tr>	</tr>
<tr>	<tr>
<td rowspan="3" bgcolor="$tabbg">	<td rowspan="3" bgcolor="$tabbg">
$titleinfo	$titleinfo $dc_info
<td bgcolor="$tabbg" align="right">	</td><td bgcolor="$tabbg" align="right">
<font size="2" face="Arial, Helvetica, sans-serif">	<font size="2" face="Arial, Helvetica, sans-serif">
$ENV{'environment.firstname'}	$env{'environment.firstname'}
$ENV{'environment.middlename'}	$env{'environment.middlename'}
$ENV{'environment.lastname'}	$env{'environment.lastname'}
$ENV{'environment.generation'}	$env{'environment.generation'}
</font>	</font>
</td>	</td>
</tr>	</tr>
Line 2676 ENDBODY	Line 2854 ENDBODY
}	}

###############################################	###############################################
	###############################################

	=pod

	=back

	=head1 HTTP Helpers

	=over 4

	=item * &endbodytag()

	Returns a uniform footer for LON-CAPA web pages.

	Inputs:

	=over 4

	=back

	Returns: A uniform footer for LON-CAPA web pages.

	=cut

	sub endbodytag {
	my $endbodytag='</body>';
	if ($env{'environment.texengine'} eq 'jsMath') {
	$endbodytag='<script type="text/javascript">jsMath.Process()</script>'.
	"\n".$endbodytag;
	}
	return $endbodytag;
	}

	###############################################

=pod	=pod

Line 2689 Returns either 'student','coordinator','	Line 2901 Returns either 'student','coordinator','
###############################################	###############################################
sub get_users_function {	sub get_users_function {
my $function = 'student';	my $function = 'student';
if ($ENV{'request.role'}=~/^(cc\|in\|ta\|ep)/) {	if ($env{'request.role'}=~/^(cc\|in\|ta\|ep)/) {
$function='coordinator';	$function='coordinator';
}	}
if ($ENV{'request.role'}=~/^(su\|dc\|ad\|li)/) {	if ($env{'request.role'}=~/^(su\|dc\|ad\|li)/) {
$function='admin';	$function='admin';
}	}
if (($ENV{'request.role'}=~/^(au\|ca)/) \|\|	if (($env{'request.role'}=~/^(au\|ca)/) \|\|
($ENV{'REQUEST_URI'}=~/^(\/priv\|\~)/)) {	($ENV{'REQUEST_URI'}=~/^(\/priv\|\~)/)) {
$function='author';	$function='author';
}	}
Line 2789 sub get_posted_cgi {	Line 3001 sub get_posted_cgi {
if ($name) {	if ($name) {
chomp($value);	chomp($value);
if ($fname) {	if ($fname) {
$ENV{"form.$name.filename"}=$fname;	$env{"form.$name.filename"}=$fname;
$ENV{"form.$name.mimetype"}=$fmime;	$env{"form.$name.mimetype"}=$fmime;
} else {	} else {
$value=~s/\s+$//s;	$value=~s/\s+$//s;
}	}
Line 2822 sub get_posted_cgi {	Line 3034 sub get_posted_cgi {
}	}
}	}
}	}
$ENV{'request.method'}=$ENV{'REQUEST_METHOD'};	$env{'request.method'}=$ENV{'REQUEST_METHOD'};
$r->method_number(M_GET);	$r->method_number(M_GET);
$r->method('GET');	$r->method('GET');
$r->headers_in->unset('Content-length');	$r->headers_in->unset('Content-length');
Line 2832 sub get_posted_cgi {	Line 3044 sub get_posted_cgi {

=item * get_unprocessed_cgi($query,$possible_names)	=item * get_unprocessed_cgi($query,$possible_names)

Modify the %ENV hash to contain unprocessed CGI form parameters held in	Modify the %env hash to contain unprocessed CGI form parameters held in
$query. The parameters listed in $possible_names (an array reference),	$query. The parameters listed in $possible_names (an array reference),
will be set in $ENV{'form.name'} if they do not already exist.	will be set in $env{'form.name'} if they do not already exist.

Typically called with $ENV{'QUERY_STRING'} as the first parameter.	Typically called with $ENV{'QUERY_STRING'} as the first parameter.
$possible_names is an ref to an array of form element names. As an example:	$possible_names is an ref to an array of form element names. As an example:
get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);	get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.	will result in $env{'form.uname'} and $env{'form.udom'} being set.

=cut	=cut

Line 2853 sub get_unprocessed_cgi {	Line 3065 sub get_unprocessed_cgi {
$value =~ tr/+/ /;	$value =~ tr/+/ /;
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;	$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
&Apache::lonxml::debug("Seting :$name: to :$value:");	&Apache::lonxml::debug("Seting :$name: to :$value:");
unless (defined($ENV{'form.'.$name})) { &add_to_env('form.'.$name,$value) };	unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
}	}
}	}
}	}
Line 2867 returns cache-controlling header code	Line 3079 returns cache-controlling header code
=cut	=cut

sub cacheheader {	sub cacheheader {
unless ($ENV{'request.method'} eq 'GET') { return ''; }	unless ($env{'request.method'} eq 'GET') { return ''; }
my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);	my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />	my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
<meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />	<meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
Line 2886 specifies header code to not have cache	Line 3098 specifies header code to not have cache
sub no_cache {	sub no_cache {
my ($r) = @_;	my ($r) = @_;
if ($ENV{'REQUEST_METHOD'} ne 'GET' &&	if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
$ENV{'request.method'} ne 'GET') { return ''; }	$env{'request.method'} ne 'GET') { return ''; }
my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));	my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
$r->no_cache(1);	$r->no_cache(1);
$r->header_out("Expires" => $date);	$r->header_out("Expires" => $date);
Line 2895 sub no_cache {	Line 3107 sub no_cache {

sub content_type {	sub content_type {
my ($r,$type,$charset) = @_;	my ($r,$type,$charset) = @_;
	if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
unless ($charset) {	unless ($charset) {
$charset=&Apache::lonlocal::current_encoding;	$charset=&Apache::lonlocal::current_encoding;
}	}
Line 2910 sub content_type {	Line 3123 sub content_type {

=item * add_to_env($name,$value)	=item * add_to_env($name,$value)

adds $name to the %ENV hash with value	adds $name to the %env hash with value
$value, if $name already exists, the entry is converted to an array	$value, if $name already exists, the entry is converted to an array
reference and $value is added to the array.	reference and $value is added to the array.

Line 2918 reference and $value is added to the arr	Line 3131 reference and $value is added to the arr

sub add_to_env {	sub add_to_env {
my ($name,$value)=@_;	my ($name,$value)=@_;
if (defined($ENV{$name})) {	if (defined($env{$name})) {
if (ref($ENV{$name})) {	if (ref($env{$name})) {
#already have multiple values	#already have multiple values
	push(@{ $env{$name} },$value);
push(@{ $ENV{$name} },$value);	push(@{ $ENV{$name} },$value);
} else {	} else {
#first time seeing multiple values, convert hash entry to an arrayref	#first time seeing multiple values, convert hash entry to an arrayref
my $first=$ENV{$name};	my $first=$env{$name};
	undef($env{$name});
undef($ENV{$name});	undef($ENV{$name});
	push(@{ $env{$name} },$first,$value);
push(@{ $ENV{$name} },$first,$value);	push(@{ $ENV{$name} },$first,$value);
}	}
} else {	} else {
	$env{$name}=$value;
$ENV{$name}=$value;	$ENV{$name}=$value;
}	}
}	}
Line 2937 sub add_to_env {	Line 3154 sub add_to_env {

=item * get_env_multiple($name)	=item * get_env_multiple($name)

gets $name from the %ENV hash, it seemlessly handles the cases where multiple	gets $name from the %env hash, it seemlessly handles the cases where multiple
values may be defined and end up as an array ref.	values may be defined and end up as an array ref.

returns an array of values	returns an array of values
Line 2947 returns an array of values	Line 3164 returns an array of values
sub get_env_multiple {	sub get_env_multiple {
my ($name) = @_;	my ($name) = @_;
my @values;	my @values;
if (defined($ENV{$name})) {	if (defined($env{$name})) {
# exists is it an array	# exists is it an array
if (ref($ENV{$name})) {	if (ref($env{$name})) {
@values=@{ $ENV{$name} };	@values=@{ $env{$name} };
} else {	} else {
$values[0]=$ENV{$name};	$values[0]=$env{$name};
}	}
}	}
return(@values);	return(@values);
Line 2970 sub get_env_multiple {	Line 3187 sub get_env_multiple {
=item * upfile_store($r)	=item * upfile_store($r)

Store uploaded file, $r should be the HTTP Request object,	Store uploaded file, $r should be the HTTP Request object,
needs $ENV{'form.upfile'}	needs $env{'form.upfile'}
returns $datatoken to be put into hidden field	returns $datatoken to be put into hidden field

=cut	=cut

sub upfile_store {	sub upfile_store {
my $r=shift;	my $r=shift;
$ENV{'form.upfile'}=~s/\r/\n/gs;	$env{'form.upfile'}=~s/\r/\n/gs;
$ENV{'form.upfile'}=~s/\f/\n/gs;	$env{'form.upfile'}=~s/\f/\n/gs;
$ENV{'form.upfile'}=~s/\n+/\n/gs;	$env{'form.upfile'}=~s/\n+/\n/gs;
$ENV{'form.upfile'}=~s/\n+$//gs;	$env{'form.upfile'}=~s/\n+$//gs;

my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.	my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
'_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;	'_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
{	{
my $datafile = $r->dir_config('lonDaemons').	my $datafile = $r->dir_config('lonDaemons').
'/tmp/'.$datatoken.'.tmp';	'/tmp/'.$datatoken.'.tmp';
if ( open(my $fh,">$datafile") ) {	if ( open(my $fh,">$datafile") ) {
print $fh $ENV{'form.upfile'};	print $fh $env{'form.upfile'};
close($fh);	close($fh);
}	}
}	}
Line 3000 sub upfile_store {	Line 3217 sub upfile_store {
=item * load_tmp_file($r)	=item * load_tmp_file($r)

Load uploaded file from tmp, $r should be the HTTP Request object,	Load uploaded file from tmp, $r should be the HTTP Request object,
needs $ENV{'form.datatoken'},	needs $env{'form.datatoken'},
sets $ENV{'form.upfile'} to the contents of the file	sets $env{'form.upfile'} to the contents of the file

=cut	=cut

Line 3010 sub load_tmp_file {	Line 3227 sub load_tmp_file {
my @studentdata=();	my @studentdata=();
{	{
my $studentfile = $r->dir_config('lonDaemons').	my $studentfile = $r->dir_config('lonDaemons').
'/tmp/'.$ENV{'form.datatoken'}.'.tmp';	'/tmp/'.$env{'form.datatoken'}.'.tmp';
if ( open(my $fh,"<$studentfile") ) {	if ( open(my $fh,"<$studentfile") ) {
@studentdata=<$fh>;	@studentdata=<$fh>;
close($fh);	close($fh);
}	}
}	}
$ENV{'form.upfile'}=join('',@studentdata);	$env{'form.upfile'}=join('',@studentdata);
}	}

=pod	=pod
Line 3025 sub load_tmp_file {	Line 3242 sub load_tmp_file {

Separate uploaded file into records	Separate uploaded file into records
returns array of records,	returns array of records,
needs $ENV{'form.upfile'} and $ENV{'form.upfiletype'}	needs $env{'form.upfile'} and $env{'form.upfiletype'}

=cut	=cut

sub upfile_record_sep {	sub upfile_record_sep {
if ($ENV{'form.upfiletype'} eq 'xml') {	if ($env{'form.upfiletype'} eq 'xml') {
} else {	} else {
return split(/\n/,$ENV{'form.upfile'});	my @records;
	foreach my $line (split(/\n/,$env{'form.upfile'})) {
	if ($line=~/^\s*$/) { next; }
	push(@records,$line);
	}
	return @records;
}	}
}	}

Line 3040 sub upfile_record_sep {	Line 3262 sub upfile_record_sep {

=item * record_sep($record)	=item * record_sep($record)

Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'}	Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}

=cut	=cut

sub record_sep {	sub record_sep {
my $record=shift;	my $record=shift;
my %components=();	my %components=();
if ($ENV{'form.upfiletype'} eq 'xml') {	if ($env{'form.upfiletype'} eq 'xml') {
} elsif ($ENV{'form.upfiletype'} eq 'space') {	} elsif ($env{'form.upfiletype'} eq 'space') {
my $i=0;	my $i=0;
foreach (split(/\s+/,$record)) {	foreach (split(/\s+/,$record)) {
my $field=$_;	my $field=$_;
Line 3057 sub record_sep {	Line 3279 sub record_sep {
$components{$i}=$field;	$components{$i}=$field;
$i++;	$i++;
}	}
} elsif ($ENV{'form.upfiletype'} eq 'tab') {	} elsif ($env{'form.upfiletype'} eq 'tab') {
my $i=0;	my $i=0;
foreach (split(/\t/,$record)) {	foreach (split(/\t/,$record)) {
my $field=$_;	my $field=$_;
Line 3190 sub csv_print_select_table {	Line 3412 sub csv_print_select_table {
$r->print('<option value="none"></option>');	$r->print('<option value="none"></option>');
foreach (sort({$a <=> $b} keys(%sone))) {	foreach (sort({$a <=> $b} keys(%sone))) {
$r->print('<option value="'.$_.'"'.	$r->print('<option value="'.$_.'"'.
($_ eq $defaultcol ? ' selected ' : '').	($_ eq $defaultcol ? ' selected="selected" ' : '').
'>Column '.($_+1).'</option>');	'>Column '.($_+1).'</option>');
}	}
$r->print('</select></td></tr>'."\n");	$r->print('</select></td></tr>'."\n");
Line 3234 sub csv_samples_select_table {	Line 3456 sub csv_samples_select_table {
foreach (@$d) {	foreach (@$d) {
my ($value,$display,$defaultcol)=@{ $_ };	my ($value,$display,$defaultcol)=@{ $_ };
$r->print('<option value="'.$value.'"'.	$r->print('<option value="'.$value.'"'.
($i eq $defaultcol ? ' selected ':'').'>'.	($i eq $defaultcol ? ' selected="selected" ':'').'>'.
$display.'</option>');	$display.'</option>');
}	}
$r->print('</select></td><td>');	$r->print('</select></td><td>');
Line 3748 Returns: both routines return nothing	Line 3970 Returns: both routines return nothing
sub store_course_settings {	sub store_course_settings {
# save to the environment	# save to the environment
# appenv the same items, just to be safe	# appenv the same items, just to be safe
my $courseid = $ENV{'request.course.id'};	my $courseid = $env{'request.course.id'};
my $coursedom = $ENV{'course.'.$courseid.'.domain'};	my $coursedom = $env{'course.'.$courseid.'.domain'};
my ($prefix,$Settings) = @_;	my ($prefix,$Settings) = @_;
my %SaveHash;	my %SaveHash;
my %AppHash;	my %AppHash;
while (my ($setting,$type) = each(%$Settings)) {	while (my ($setting,$type) = each(%$Settings)) {
my $basename = 'internal.'.$prefix.'.'.$setting;	my $basename = 'internal.'.$prefix.'.'.$setting;
my $envname = 'course.'.$courseid.'.'.$basename;	my $envname = 'course.'.$courseid.'.'.$basename;
if (exists($ENV{'form.'.$setting})) {	if (exists($env{'form.'.$setting})) {
# Save this value away	# Save this value away
if ($type eq 'scalar' &&	if ($type eq 'scalar' &&
(! exists($ENV{$envname}) \|\|	(! exists($env{$envname}) \|\|
$ENV{$envname} ne $ENV{'form.'.$setting})) {	$env{$envname} ne $env{'form.'.$setting})) {
$SaveHash{$basename} = $ENV{'form.'.$setting};	$SaveHash{$basename} = $env{'form.'.$setting};
$AppHash{$envname} = $ENV{'form.'.$setting};	$AppHash{$envname} = $env{'form.'.$setting};
} elsif ($type eq 'array') {	} elsif ($type eq 'array') {
my $stored_form;	my $stored_form;
if (ref($ENV{'form.'.$setting})) {	if (ref($env{'form.'.$setting})) {
$stored_form = join(',',	$stored_form = join(',',
map {	map {
&Apache::lonnet::escape($_);	&Apache::lonnet::escape($_);
} sort(@{$ENV{'form.'.$setting}}));	} sort(@{$env{'form.'.$setting}}));
} else {	} else {
$stored_form =	$stored_form =
&Apache::lonnet::escape($ENV{'form.'.$setting});	&Apache::lonnet::escape($env{'form.'.$setting});
}	}
# Determine if the array contents are the same.	# Determine if the array contents are the same.
if ($stored_form ne $ENV{$envname}) {	if ($stored_form ne $env{$envname}) {
$SaveHash{$basename} = $stored_form;	$SaveHash{$basename} = $stored_form;
$AppHash{$envname} = $stored_form;	$AppHash{$envname} = $stored_form;
}	}
Line 3784 sub store_course_settings {	Line 4006 sub store_course_settings {
}	}
my $put_result = &Apache::lonnet::put('environment',\%SaveHash,	my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
$coursedom,	$coursedom,
$ENV{'course.'.$courseid.'.num'});	$env{'course.'.$courseid.'.num'});
if ($put_result !~ /^(ok\|delayed)/) {	if ($put_result !~ /^(ok\|delayed)/) {
&Apache::lonnet::logthis('unable to save form parameters, '.	&Apache::lonnet::logthis('unable to save form parameters, '.
'got error:'.$put_result);	'got error:'.$put_result);
Line 3795 sub store_course_settings {	Line 4017 sub store_course_settings {
}	}

sub restore_course_settings {	sub restore_course_settings {
my $courseid = $ENV{'request.course.id'};	my $courseid = $env{'request.course.id'};
my ($prefix,$Settings) = @_;	my ($prefix,$Settings) = @_;
while (my ($setting,$type) = each(%$Settings)) {	while (my ($setting,$type) = each(%$Settings)) {
next if (exists($ENV{'form.'.$setting}));	next if (exists($env{'form.'.$setting}));
my $envname = 'course.'.$courseid.'.internal.'.$prefix.	my $envname = 'course.'.$courseid.'.internal.'.$prefix.
'.'.$setting;	'.'.$setting;
if (exists($ENV{$envname})) {	if (exists($env{$envname})) {
if ($type eq 'scalar') {	if ($type eq 'scalar') {
$ENV{'form.'.$setting} = $ENV{$envname};	$env{'form.'.$setting} = $env{$envname};
} elsif ($type eq 'array') {	} elsif ($type eq 'array') {
$ENV{'form.'.$setting} = [	$env{'form.'.$setting} = [
map {	map {
&Apache::lonnet::unescape($_);	&Apache::lonnet::unescape($_);
} split(',',$ENV{$envname})	} split(',',$env{$envname})
];	];
}	}
}	}
Line 3841 sub icon {	Line 4063 sub icon {
$curfext.".gif";	$curfext.".gif";
}	}
}	}
return $iconname;	return &lonhttpdurl($iconname);
}	}

sub lonhttpdurl {	sub lonhttpdurl {

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.241
changed lines
	Added in v.1.258