loncom/interface/loncommon.pm - diff

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Diff for /loncom/interface/loncommon.pm between versions 1.1075.2.127.2.9 and 1.1075.2.167

version 1.1075.2.127.2.9, 2020/05/25 16:46:58	version 1.1075.2.167, 2024/07/04 23:00:26
Line 61 use POSIX qw(strftime mktime);	Line 61 use POSIX qw(strftime mktime);
use Apache::lonmenu();	use Apache::lonmenu();
use Apache::lonenc();	use Apache::lonenc();
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonnet();
use HTML::Entities;	use HTML::Entities;
use Apache::lonhtmlcommon();	use Apache::lonhtmlcommon();
use Apache::loncoursedata();	use Apache::loncoursedata();
Line 71 use Apache::lonuserutils();	Line 70 use Apache::lonuserutils();
use Apache::lonuserstate();	use Apache::lonuserstate();
use Apache::courseclassifier();	use Apache::courseclassifier();
use LONCAPA qw(:DEFAULT :match);	use LONCAPA qw(:DEFAULT :match);
	use HTTP::Request;
use DateTime::TimeZone;	use DateTime::TimeZone;
use DateTime::Locale;	use DateTime::Locale;
use Encode();	use Encode();
Line 82 use Crypt::DES;	Line 82 use Crypt::DES;
use DynaLoader; # for Crypt::DES version	use DynaLoader; # for Crypt::DES version
use File::Copy();	use File::Copy();
use File::Path();	use File::Path();
use String::CRC32();
use Short::URL();

# ---------------------------------------------- Designs	# ---------------------------------------------- Designs
use vars qw(%defaultdesign);	use vars qw(%defaultdesign);
Line 429 sub studentbrowser_javascript {	Line 427 sub studentbrowser_javascript {
<script type="text/javascript" language="Javascript">	<script type="text/javascript" language="Javascript">
// <![CDATA[	// <![CDATA[
var stdeditbrowser;	var stdeditbrowser;
function openstdbrowser(formname,uname,udom,clicker,roleflag,ignorefilter,courseadvonly) {	function openstdbrowser(formname,uname,udom,clicker,roleflag,ignorefilter,courseadv) {
var url = '/adm/pickstudent?';	var url = '/adm/pickstudent?';
var filter;	var filter;
if (!ignorefilter) {	if (!ignorefilter) {
Line 444 sub studentbrowser_javascript {	Line 442 sub studentbrowser_javascript {
'&udomelement='+udom+	'&udomelement='+udom+
'&clicker='+clicker;	'&clicker='+clicker;
if (roleflag) { url+="&roles=1"; }	if (roleflag) { url+="&roles=1"; }
if (courseadvonly) { url+="&courseadvonly=1"; }	if (courseadv == 'condition') {
	if (document.getElementById('courseadv')) {
	courseadv = document.getElementById('courseadv').value;
	}
	}
	if ((courseadv == 'only') \|\| (courseadv == 'none')) { url+="&courseadv="+courseadv; }
var title = 'Student_Browser';	var title = 'Student_Browser';
var options = 'scrollbars=1,resizable=1,menubar=0';	var options = 'scrollbars=1,resizable=1,menubar=0';
options += ',width=700,height=600';	options += ',width=700,height=600';
Line 476 ENDRESBRW	Line 479 ENDRESBRW
}	}

sub selectstudent_link {	sub selectstudent_link {
my ($form,$unameele,$udomele,$courseadvonly,$clickerid)=@_;	my ($form,$unameele,$udomele,$courseadv,$clickerid)=@_;
my $callargs = "'".&Apache::lonhtmlcommon::entity_encode($form)."','".	my $callargs = "'".&Apache::lonhtmlcommon::entity_encode($form)."','".
&Apache::lonhtmlcommon::entity_encode($unameele)."','".	&Apache::lonhtmlcommon::entity_encode($unameele)."','".
&Apache::lonhtmlcommon::entity_encode($udomele)."'";	&Apache::lonhtmlcommon::entity_encode($udomele)."'";
Line 487 sub selectstudent_link {	Line 490 sub selectstudent_link {
return '';	return '';
}	}
$callargs.=",'".&Apache::lonhtmlcommon::entity_encode($clickerid)."'";	$callargs.=",'".&Apache::lonhtmlcommon::entity_encode($clickerid)."'";
if ($courseadvonly) {	if ($courseadv eq 'only') {
$callargs .= ",'',1,1";	$callargs .= ",'',1,'$courseadv'";
	} elsif ($courseadv eq 'none') {
	$callargs .= ",'','','$courseadv'";
	} elsif ($courseadv eq 'condition') {
	$callargs .= ",'','','$courseadv'";
}	}
return '<span class="LC_nobreak">'.	return '<span class="LC_nobreak">'.
'<a href="javascript:openstdbrowser('.$callargs.');">'.	'<a href="javascript:openstdbrowser('.$callargs.');">'.
Line 1370 sub help_open_menu {	Line 1377 sub help_open_menu {
}	}

sub top_nav_help {	sub top_nav_help {
my ($text) = @_;	my ($text,$linkattr) = @_;
$text = &mt($text);	$text = &mt($text);
my $stay_on_page;	my $stay_on_page;
unless ($env{'environment.remote'} eq 'on') {	unless ($env{'environment.remote'} eq 'on') {
Line 1386 sub top_nav_help {	Line 1393 sub top_nav_help {
if ($link) {	if ($link) {
return <<"END";	return <<"END";
$banner_link	$banner_link
<a href="$link" title="$title">$text</a>	<a href="$link" title="$title" $linkattr>$text</a>
END	END
} else {	} else {
return ' '.$text.' ';	return ' '.$text.' ';
Line 1405 sub help_menu_js {	Line 1412 sub help_menu_js {
&Apache::loncommon::start_page('Help Menu', undef,	&Apache::loncommon::start_page('Help Menu', undef,
{'frameset' => 1,	{'frameset' => 1,
'js_ready' => 1,	'js_ready' => 1,
'use_absolute' => $httphost,	'use_absolute' => $httphost,
'add_entries' => {	'add_entries' => {
'border' => '0',	'border' => '0',
'rows' => "110,*",},});	'rows' => "110,*",},});
Line 2264 sub select_form {	Line 2271 sub select_form {
if ($onchange) {	if ($onchange) {
$onchange = ' onchange="'.$onchange.'"';	$onchange = ' onchange="'.$onchange.'"';
}	}
my $selectform = "<select name=\"$name\" size=\"1\"$onchange>\n";	my $disabled;
	if ($readonly) {
	$disabled = ' disabled="disabled"';
	}
	my $selectform = "<select name=\"$name\" size=\"1\"$onchange$disabled>\n";
my @keys;	my @keys;
if (exists($hashref->{'select_form_order'})) {	if (exists($hashref->{'select_form_order'})) {
@keys=@{$hashref->{'select_form_order'}};	@keys=@{$hashref->{'select_form_order'}};
Line 3115 sub authform_filesystem {	Line 3126 sub authform_filesystem {
$fsyscheck.' onchange="'.$jscall.'" onclick="'.	$fsyscheck.' onchange="'.$jscall.'" onclick="'.
$jscall.'"'.$disabled.' />';	$jscall.'"'.$disabled.' />';
}	}
$autharg = '<input type="text" size="10" name="fsysarg" value=""'.	$autharg = '<input type="password" size="10" name="fsysarg" value=""'.
' onchange="'.$jscall.'"'.$disabled.' />';	' onchange="'.$jscall.'"'.$disabled.' />';
$result = &mt	$result = &mt
('[_1] Filesystem Authenticated (with initial password [_2])',	('[_1] Filesystem Authenticated (with initial password [_2])',
'<label><input type="radio" name="login" value="fsys" '.	'<label>'.$authtype,'</label>'.$autharg);
$fsyscheck.'onchange="'.$jscall.'" onclick="'.$jscall.'"'.$disabled.' />',
'</label><input type="password" size="10" name="fsysarg" value="" '.
'onchange="'.$jscall.'"'.$disabled.' />');
return $result;	return $result;
}	}

Line 3168 sub get_assignable_auth {	Line 3176 sub get_assignable_auth {
return ($authnum,%can_assign);	return ($authnum,%can_assign);
}	}

	sub check_passwd_rules {
	my ($domain,$plainpass) = @_;
	my %passwdconf = &Apache::lonnet::get_passwdconf($domain);
	my ($min,$max,@chars,@brokerule,$warning);
	$min = $Apache::lonnet::passwdmin;
	if (ref($passwdconf{'chars'}) eq 'ARRAY') {
	if ($passwdconf{'min'} =~ /^\d+$/) {
	if ($passwdconf{'min'} > $min) {
	$min = $passwdconf{'min'};
	}
	}
	if ($passwdconf{'max'} =~ /^\d+$/) {
	$max = $passwdconf{'max'};
	}
	@chars = @{$passwdconf{'chars'}};
	}
	if (($min) && (length($plainpass) < $min)) {
	push(@brokerule,'min');
	}
	if (($max) && (length($plainpass) > $max)) {
	push(@brokerule,'max');
	}
	if (@chars) {
	my %rules;
	map { $rules{$_} = 1; } @chars;
	if ($rules{'uc'}) {
	unless ($plainpass =~ /[A-Z]/) {
	push(@brokerule,'uc');
	}
	}
	if ($rules{'lc'}) {
	unless ($plainpass =~ /[a-z]/) {
	push(@brokerule,'lc');
	}
	}
	if ($rules{'num'}) {
	unless ($plainpass =~ /\d/) {
	push(@brokerule,'num');
	}
	}
	if ($rules{'spec'}) {
	unless ($plainpass =~ /[!"#$%&'()*+,\-.\/:;<=>?@[\\\]^_`{\|}~]/) {
	push(@brokerule,'spec');
	}
	}
	}
	if (@brokerule) {
	my %rulenames = &Apache::lonlocal::texthash(
	uc => 'At least one upper case letter',
	lc => 'At least one lower case letter',
	num => 'At least one number',
	spec => 'At least one non-alphanumeric',
	);
	$rulenames{'uc'} .= ': ABCDEFGHIJKLMNOPQRSTUVWXYZ';
	$rulenames{'lc'} .= ': abcdefghijklmnopqrstuvwxyz';
	$rulenames{'num'} .= ': 0123456789';
	$rulenames{'spec'} .= ': !"\#$%&\'()*+,-./:;<=>?@[\]^_\`{\|}~';
	$rulenames{'min'} = &mt('Minimum password length: [_1]',$min);
	$rulenames{'max'} = &mt('Maximum password length: [_1]',$max);
	$warning = &mt('Password did not satisfy the following:').'<ul>';
	foreach my $rule ('min','max','uc','lc','num','spec') {
	if (grep(/^$rule$/,@brokerule)) {
	$warning .= '<li>'.$rulenames{$rule}.'</li>';
	}
	}
	$warning .= '</ul>';
	}
	if (wantarray) {
	return @brokerule;
	}
	return $warning;
	}

###############################################################	###############################################################
## Get Kerberos Defaults for Domain ##	## Get Kerberos Defaults for Domain ##
###############################################################	###############################################################
Line 3588 sub syllabuswrapper {	Line 3669 sub syllabuswrapper {

# -----------------------------------------------------------------------------	# -----------------------------------------------------------------------------

	sub aboutme_on {
	my ($uname,$udom)=@_;
	unless ($uname) { $uname=$env{'user.name'}; }
	unless ($udom) { $udom=$env{'user.domain'}; }
	return if ($udom eq 'public' && $uname eq 'public');
	my $hashkey=$uname.':'.$udom;
	my ($aboutme,$cached)=&Apache::lonnet::is_cached_new('aboutme',$hashkey);
	if ($cached) {
	return $aboutme;
	}
	$aboutme = &Apache::lonnet::usertools_access($uname,$udom,'aboutme');
	&Apache::lonnet::do_cache_new('aboutme',$hashkey,$aboutme,3600);
	return $aboutme;
	}

	sub devalidate_aboutme_cache {
	my ($uname,$udom)=@_;
	if (!$udom) { $udom =$env{'user.domain'}; }
	if (!$uname) { $uname=$env{'user.name'}; }
	return if ($udom eq 'public' && $uname eq 'public');
	my $id=$uname.':'.$udom;
	&Apache::lonnet::devalidate_cache_new('aboutme',$id);
	}

sub track_student_link {	sub track_student_link {
my ($linktext,$sname,$sdom,$target,$start,$only_body) = @_;	my ($linktext,$sname,$sdom,$target,$start,$only_body) = @_;
my $link ="/adm/trackstudent?";	my $link ="/adm/trackstudent?";
Line 4338 sub get_student_view_with_retries {	Line 4443 sub get_student_view_with_retries {
}	}
}	}

	sub css_links {
	my ($currsymb,$level) = @_;
	my ($links,@symbs,%cssrefs,%httpref);
	if ($level eq 'map') {
	my $navmap = Apache::lonnavmaps::navmap->new();
	if (ref($navmap)) {
	my ($map,undef,$url)=&Apache::lonnet::decode_symb($currsymb);
	my @resources = $navmap->retrieveResources($map,sub { $_[0]->is_problem() },0,0);
	foreach my $res (@resources) {
	if (ref($res) && $res->symb()) {
	push(@symbs,$res->symb());
	}
	}
	}
	} else {
	@symbs = ($currsymb);
	}
	foreach my $symb (@symbs) {
	my $css_href = &Apache::lonnet::EXT('resource.0.cssfile',$symb);
	if ($css_href =~ /\S/) {
	unless ($css_href =~ m{https?://}) {
	my $url = (&Apache::lonnet::decode_symb($symb))[-1];
	my $proburl = &Apache::lonnet::clutter($url);
	my ($probdir) = ($proburl =~ m{(.+)/[^/]+$});
	unless ($css_href =~ m{^/}) {
	$css_href = &Apache::lonnet::hreflocation($probdir,$css_href);
	}
	if ($css_href =~ m{^/(res\|uploaded)/}) {
	unless (($httpref{'httpref.'.$css_href}) \|\|
	(&Apache::lonnet::is_on_map($css_href))) {
	my $thisurl = $proburl;
	if ($env{'httpref.'.$proburl}) {
	$thisurl = $env{'httpref.'.$proburl};
	}
	$httpref{'httpref.'.$css_href} = $thisurl;
	}
	}
	}
	$cssrefs{$css_href} = 1;
	}
	}
	if (keys(%httpref)) {
	&Apache::lonnet::appenv(\%httpref);
	}
	if (keys(%cssrefs)) {
	foreach my $css_href (keys(%cssrefs)) {
	next unless ($css_href =~ m{^(/res/\|/uploaded/\|https?://)});
	$links .= '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />'."\n";
	}
	}
	return $links;
	}

=pod	=pod

=item * &get_student_answers()	=item * &get_student_answers()
Line 4593 sub findallcourses {	Line 4751 sub findallcourses {
###############################################	###############################################

sub blockcheck {	sub blockcheck {
my ($setters,$activity,$uname,$udom,$url,$is_course) = @_;	my ($setters,$activity,$clientip,$uname,$udom,$url,$is_course,$symb,$caller) = @_;

	unless ($activity eq 'docs') {
	my ($has_evb,$check_ipaccess);
	my $dom = $env{'user.domain'};
	if ($env{'request.course.id'}) {
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	my $checkrole = "cm./$cdom/$cnum";
	my $sec = $env{'request.course.sec'};
	if ($sec ne '') {
	$checkrole .= "/$sec";
	}
	if ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) &&
	($env{'request.role'} !~ /^st/)) {
	$has_evb = 1;
	}
	unless ($has_evb) {
	if (($activity eq 'printout') \|\| ($activity eq 'grades') \|\| ($activity eq 'search') \|\|
	($activity eq 'boards') \|\| ($activity eq 'groups') \|\| ($activity eq 'chat')) {
	if ($udom eq $cdom) {
	$check_ipaccess = 1;
	}
	}
	}
	} elsif (($activity eq 'com') \|\| ($activity eq 'port') \|\| ($activity eq 'blogs') \|\|
	($activity eq 'about') \|\| ($activity eq 'wishlist') \|\| ($activity eq 'passwd')) {
	my $checkrole;
	if ($env{'request.role.domain'} eq '') {
	$checkrole = "cm./$env{'user.domain'}/";
	} else {
	$checkrole = "cm./$env{'request.role.domain'}/";
	}
	if (($checkrole) && (&Apache::lonnet::allowed('evb',undef,undef,$checkrole))) {
	$has_evb = 1;
	}
	}
	unless ($has_evb \|\| $check_ipaccess) {
	my @machinedoms = &Apache::lonnet::current_machine_domains();
	if (($dom eq 'public') && ($activity eq 'port')) {
	$dom = $udom;
	}
	if (($dom ne '') && (grep(/^\Q$dom\E$/,@machinedoms))) {
	$check_ipaccess = 1;
	} else {
	my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
	my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
	my $prim = &Apache::lonnet::domain($dom,'primary');
	my $intdom = &Apache::lonnet::internet_dom($prim);
	if (($intdom ne '') && (ref($internet_names) eq 'ARRAY')) {
	if (grep(/^\Q$intdom\E$/,@{$internet_names})) {
	$check_ipaccess = 1;
	}
	}
	}
	}
	if ($check_ipaccess) {
	my ($ipaccessref,$cached)=&Apache::lonnet::is_cached_new('ipaccess',$dom);
	unless (defined($cached)) {
	my %domconfig =
	&Apache::lonnet::get_dom('configuration',['ipaccess'],$dom);
	$ipaccessref = &Apache::lonnet::do_cache_new('ipaccess',$dom,$domconfig{'ipaccess'},1800);
	}
	if ((ref($ipaccessref) eq 'HASH') && ($clientip)) {
	foreach my $id (keys(%{$ipaccessref})) {
	if (ref($ipaccessref->{$id}) eq 'HASH') {
	my $range = $ipaccessref->{$id}->{'ip'};
	if ($range) {
	if (&Apache::lonnet::ip_match($clientip,$range)) {
	if (ref($ipaccessref->{$id}->{'commblocks'}) eq 'HASH') {
	if ($ipaccessref->{$id}->{'commblocks'}->{$activity} eq 'on') {
	return ('','','',$id,$dom);
	last;
	}
	}
	}
	}
	}
	}
	}
	}
	if (($activity eq 'wishlist') \|\| ($activity eq 'annotate')) {
	return ();
	}
	}
if (defined($udom) && defined($uname)) {	if (defined($udom) && defined($uname)) {
# If uname and udom are for a course, check for blocks in the course.	# If uname and udom are for a course, check for blocks in the course.
if (($is_course) \|\| (&Apache::lonnet::is_course($udom,$uname))) {	if (($is_course) \|\| (&Apache::lonnet::is_course($udom,$uname))) {
my ($startblock,$endblock,$triggerblock) =	my ($startblock,$endblock,$triggerblock) =
&get_blocks($setters,$activity,$udom,$uname,$url);	&get_blocks($setters,$activity,$udom,$uname,$url,$symb,$caller);
return ($startblock,$endblock,$triggerblock);	return ($startblock,$endblock,$triggerblock);
}	}
} else {	} else {
Line 4610 sub blockcheck {	Line 4851 sub blockcheck {
my $startblock = 0;	my $startblock = 0;
my $endblock = 0;	my $endblock = 0;
my $triggerblock = '';	my $triggerblock = '';
my %live_courses = &findallcourses(undef,$uname,$udom);	my %live_courses;
	unless (($activity eq 'wishlist') \|\| ($activity eq 'annotate')) {
	%live_courses = &findallcourses(undef,$uname,$udom);
	}

# If uname is for a user, and activity is course-specific, i.e.,	# If uname is for a user, and activity is course-specific, i.e.,
# boards, chat or groups, check for blocking in current course only.	# boards, chat or groups, check for blocking in current course only.

if (($activity eq 'boards' \|\| $activity eq 'chat' \|\|	if (($activity eq 'boards' \|\| $activity eq 'chat' \|\|
$activity eq 'groups' \|\| $activity eq 'printout' \|\|	$activity eq 'groups' \|\| $activity eq 'printout') &&
$activity eq 'reinit' \|\| $activity eq 'alert') &&
($env{'request.course.id'})) {	($env{'request.course.id'})) {
foreach my $key (keys(%live_courses)) {	foreach my $key (keys(%live_courses)) {
if ($key ne $env{'request.course.id'}) {	if ($key ne $env{'request.course.id'}) {
Line 4723 sub blockcheck {	Line 4966 sub blockcheck {
($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));	($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
next if ($no_userblock);	next if ($no_userblock);

# Retrieve blocking times and identity of locker for course	# Retrieve blocking times and identity of blocker for course
# of specified user, unless user has 'evb' privilege.	# of specified user, unless user has 'evb' privilege.

my ($start,$end,$trigger) =	my ($start,$end,$trigger) =
&get_blocks($setters,$activity,$cdom,$cnum,$url);	&get_blocks($setters,$activity,$cdom,$cnum,$url,$symb,$caller);
if (($start != 0) &&	if (($start != 0) &&
(($startblock == 0) \|\| ($startblock > $start))) {	(($startblock == 0) \|\| ($startblock > $start))) {
$startblock = $start;	$startblock = $start;
Line 4747 sub blockcheck {	Line 4990 sub blockcheck {
}	}

sub get_blocks {	sub get_blocks {
my ($setters,$activity,$cdom,$cnum,$url) = @_;	my ($setters,$activity,$cdom,$cnum,$url,$symb,$caller) = @_;
my $startblock = 0;	my $startblock = 0;
my $endblock = 0;	my $endblock = 0;
my $triggerblock = '';	my $triggerblock = '';
Line 4760 sub get_blocks {	Line 5003 sub get_blocks {
my $now = time;	my $now = time;
my %commblocks = &Apache::lonnet::get_comm_blocks($cdom,$cnum);	my %commblocks = &Apache::lonnet::get_comm_blocks($cdom,$cnum);
if ($activity eq 'docs') {	if ($activity eq 'docs') {
@blockers = &Apache::lonnet::has_comm_blocking('bre',undef,$url,\%commblocks);	my ($blocked,$nosymbcache,$noenccheck);
	if (($caller eq 'blockedaccess') \|\| ($caller eq 'blockingstatus')) {
	$blocked = 1;
	$nosymbcache = 1;
	$noenccheck = 1;
	}
	@blockers = &Apache::lonnet::has_comm_blocking('bre',$symb,$url,$nosymbcache,$noenccheck,$blocked,\%commblocks);
foreach my $block (@blockers) {	foreach my $block (@blockers) {
if ($block =~ /^firstaccess____(.+)$/) {	if ($block =~ /^firstaccess____(.+)$/) {
my $item = $1;	my $item = $1;
Line 4812 sub get_blocks {	Line 5061 sub get_blocks {
my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb};	my $end = $start + $env{'course.'.$cdom.'_'.$cnum.'.timerinterval.'.$timersymb};
if ($start && $end) {	if ($start && $end) {
if (($start <= time) && ($end >= time)) {	if (($start <= time) && ($end >= time)) {
unless (grep(/^\Q$block\E$/,@blockers)) {	if (ref($commblocks{$block}) eq 'HASH') {
push(@blockers,$block);	if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
$triggered{$block} = {	if ($commblocks{$block}{'blocks'}{$activity} eq 'on') {
start => $start,	unless(grep(/^\Q$block\E$/,@blockers)) {
end => $end,	push(@blockers,$block);
type => $type,	$triggered{$block} = {
};	start => $start,
	end => $end,
	type => $type,
	};
	}
	}
	}
}	}
}	}
}	}
Line 4882 sub parse_block_record {	Line 5137 sub parse_block_record {
}	}

sub blocking_status {	sub blocking_status {
my ($activity,$uname,$udom,$url,$is_course) = @_;	my ($activity,$clientip,$uname,$udom,$url,$is_course,$symb,$caller) = @_;
my %setters;	my %setters;

# check for active blocking	# check for active blocking
my ($startblock,$endblock,$triggerblock) =	if ($clientip eq '') {
&blockcheck(\%setters,$activity,$uname,$udom,$url,$is_course);	$clientip = &Apache::lonnet::get_requestor_ip();
	}
	my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
	&blockcheck(\%setters,$activity,$clientip,$uname,$udom,$url,$is_course,$symb,$caller);
my $blocked = 0;	my $blocked = 0;
if ($startblock && $endblock) {	if (($startblock && $endblock) \|\| ($by_ip)) {
$blocked = 1;	$blocked = 1;
}	}

Line 4898 sub blocking_status {	Line 5156 sub blocking_status {

# build a link to a popup window containing the details	# build a link to a popup window containing the details
my $querystring = "?activity=$activity";	my $querystring = "?activity=$activity";
# $uname and $udom decide whose portfolio the user is trying to look at	# $uname and $udom decide whose portfolio (or information page) the user is trying to look at
if (($activity eq 'port') \|\| ($activity eq 'passwd')) {	if (($activity eq 'port') \|\| ($activity eq 'about') \|\| ($activity eq 'passwd')) {
$querystring .= "&udom=$udom" if ($udom =~ /^$match_domain$/);	$querystring .= "&udom=$udom" if ($udom =~ /^$match_domain$/);
$querystring .= "&uname=$uname" if ($uname =~ /^$match_username$/);	$querystring .= "&uname=$uname" if ($uname =~ /^$match_username$/);
} elsif ($activity eq 'docs') {	} elsif ($activity eq 'docs') {
$querystring .= '&url='.&HTML::Entities::encode($url,'&"');	my $showurl = &Apache::lonenc::check_encrypt($url);
	$querystring .= '&url='.&HTML::Entities::encode($showurl,'\'&"<>');
	if ($symb) {
	my $showsymb = &Apache::lonenc::check_encrypt($symb);
	$querystring .= '&symb='.&HTML::Entities::encode($showsymb,'\'&"<>');
	}
}	}

my $output .= <<'END_MYBLOCK';	my $output .= <<'END_MYBLOCK';
Line 4928 END_MYBLOCK	Line 5191 END_MYBLOCK
$text = &mt('Printing Blocked');	$text = &mt('Printing Blocked');
} elsif ($activity eq 'passwd') {	} elsif ($activity eq 'passwd') {
$text = &mt('Password Changing Blocked');	$text = &mt('Password Changing Blocked');
} elsif ($activity eq 'alert') {	} elsif ($activity eq 'grades') {
$text = &mt('Checking Critical Messages Blocked');	$text = &mt('Gradebook Blocked');
} elsif ($activity eq 'reinit') {	} elsif ($activity eq 'search') {
$text = &mt('Checking Course Update Blocked');	$text = &mt('Search Blocked');
	} elsif ($activity eq 'about') {
	$text = &mt('Access to User Information Pages Blocked');
	} elsif ($activity eq 'wishlist') {
	$text = &mt('Access to Stored Links Blocked');
	} elsif ($activity eq 'annotate') {
	$text = &mt('Access to Annotations Blocked');
}	}
$output .= <<"END_BLOCK";	$output .= <<"END_BLOCK";
<div class='$class'>	<div class='$class'>
Line 4956 sub check_ip_acc {	Line 5225 sub check_ip_acc {
return 1;	return 1;
}	}
my $allowed=0;	my $allowed=0;
my $ip=$ENV{'REMOTE_ADDR'} \|\| $clientip \|\| $env{'request.host'};	my $ip;
	if (($ENV{'REMOTE_ADDR'} eq '127.0.0.1') \|\|
	($ENV{'REMOTE_ADDR'} eq &Apache::lonnet::get_host_ip($Apache::lonnet::perlvar{'lonHostID'}))) {
	$ip = $env{'request.host'} \|\| $ENV{'REMOTE_ADDR'} \|\| $clientip;
	} else {
	my $remote_ip = &Apache::lonnet::get_requestor_ip();
	$ip = $remote_ip \|\| $env{'request.host'} \|\| $clientip;
	}

my $name;	my $name;
foreach my $pattern (split(',',$acc)) {	foreach my $pattern (split(',',$acc)) {
Line 5001 sub check_ip_acc {	Line 5277 sub check_ip_acc {
return $allowed;	return $allowed;
}	}

sub check_slotip_acc {
my ($acc,$clientip)=@_;
&Apache::lonxml::debug("acc is $acc");
if (!defined($acc) \|\| $acc =~ /^\s$/ \|\| $acc =~/^\sno\s*$/i) {
return 1;
}
my $allowed;
my $ip=$ENV{'REMOTE_ADDR'} \|\| $clientip \|\| $env{'request.host'};

my $name;
my %access = (
allowfrom => 1,
denyfrom => 0,
);
my @allows;
my @denies;
foreach my $item (split(',',$acc)) {
$item =~ s/^\s*//;
$item =~ s/\s*$//;
my $pattern;
if ($item =~ /^\!(.+)$/) {
push(@denies,$1);
} else {
push(@allows,$item);
}
}
my $numdenies = scalar(@denies);
my $numallows = scalar(@allows);
my $count = 0;
foreach my $pattern (@denies,@allows) {
$count ++;
my $acctype = 'allowfrom';
if ($count <= $numdenies) {
$acctype = 'denyfrom';
}
if ($pattern =~ /\*$/) {
#35.8.*
$pattern=~s/\*//;
if ($ip =~ /^\Q$pattern\E/) { $allowed=$access{$acctype}; }
} elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
#35.8.3.[34-56]
my $low=$2;
my $high=$3;
$pattern=$1;
if ($ip =~ /^\Q$pattern\E/) {
my $last=(split(/\./,$ip))[3];
if ($last <=$high && $last >=$low) { $allowed=$access{$acctype}; }
}
} elsif ($pattern =~ /^\*/) {
#*.msu.edu
$pattern=~s/\*//;
if (!defined($name)) {
use Socket;
my $netaddr=inet_aton($ip);
($name)=gethostbyaddr($netaddr,AF_INET);
}
if ($name =~ /\Q$pattern\E$/i) { $allowed=$access{$acctype}; }
} elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
#127.0.0.1
if ($ip =~ /^\Q$pattern\E/) { $allowed=$access{$acctype}; }
} else {
#some.name.com
if (!defined($name)) {
use Socket;
my $netaddr=inet_aton($ip);
($name)=gethostbyaddr($netaddr,AF_INET);
}
if ($name =~ /\Q$pattern\E$/i) { $allowed=$access{$acctype}; }
}
if ($allowed =~ /^(0\|1)$/) { last; }
}
if ($allowed eq '') {
if ($numdenies && !$numallows) {
$allowed = 1;
} else {
$allowed = 0;
}
}
return $allowed;
}

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

=pod	=pod
Line 5158 sub get_domainconf {	Line 5353 sub get_domainconf {
}	}
}	}
}	}
	} elsif ($key eq 'saml') {
	if (ref($domconfig{'login'}{$key}) eq 'HASH') {
	foreach my $host (keys(%{$domconfig{'login'}{$key}})) {
	if (ref($domconfig{'login'}{$key}{$host}) eq 'HASH') {
	$designhash{$udom.'.login.'.$key.'_'.$host} = 1;
	foreach my $item ('text','img','alt','url','title','notsso') {
	$designhash{$udom.'.login.'.$key.'_'.$item.'_'.$host} = $domconfig{'login'}{$key}{$host}{$item};
	}
	}
	}
	}
} else {	} else {
foreach my $img (keys(%{$domconfig{'login'}{$key}})) {	foreach my $img (keys(%{$domconfig{'login'}{$key}})) {
$designhash{$udom.'.login.'.$key.'_'.$img} =	$designhash{$udom.'.login.'.$key.'_'.$img} =
Line 5262 sub domainlogo {	Line 5468 sub domainlogo {
&Apache::lonnet::repcopy($local_name);	&Apache::lonnet::repcopy($local_name);
}	}
$imgsrc = &lonhttpdurl($imgsrc);	$imgsrc = &lonhttpdurl($imgsrc);
}	}
return '<img src="'.$imgsrc.'" alt="'.$domain.'" />';	my $alttext = $domain;
	if ($designhash{$domain.'.login.alttext_domlogo'} ne '') {
	$alttext = $designhash{$domain.'.login.alttext_domlogo'};
	}
	return '<img src="'.$imgsrc.'" alt="'.$alttext.'" id="lclogindomlogo" />';
} elsif (defined(&Apache::lonnet::domain($domain,'description'))) {	} elsif (defined(&Apache::lonnet::domain($domain,'description'))) {
return &Apache::lonnet::domain($domain,'description');	return &Apache::lonnet::domain($domain,'description');
} else {	} else {
Line 5478 Inputs:	Line 5688 Inputs:

=item * $args, optional argument valid values are	=item * $args, optional argument valid values are
no_auto_mt_title -> prevents &mt()ing the title arg	no_auto_mt_title -> prevents &mt()ing the title arg
	use_absolute -> for external resource or syllabus, this will
	contain https://<hostname> if server uses
	https (as per hosts.tab), but request is for http
	hostname -> hostname, from $r->hostname().

=item * $advtoolsref, optional argument, ref to an array containing	=item * $advtoolsref, optional argument, ref to an array containing
inlineremote items to be added in "Functions" menu below	inlineremote items to be added in "Functions" menu below
Line 5503 sub bodytag {	Line 5717 sub bodytag {
}	}
if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }	if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
my $httphost = $args->{'use_absolute'};	my $httphost = $args->{'use_absolute'};
	my $hostname = $args->{'hostname'};

$function = &get_users_function() if (!$function);	$function = &get_users_function() if (!$function);
my $img = &designparm($function.'.img',$domain);	my $img = &designparm($function.'.img',$domain);
Line 5522 sub bodytag {	Line 5737 sub bodytag {
if ($realm) {	if ($realm) {
$realm = '/'.$realm;	$realm = '/'.$realm;
}	}
if ($role eq 'ca') {	if ($role eq 'ca') {
my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});	my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
$realm = &plainname($rname,$rdom);	$realm = &plainname($rname,$rdom);
}	}
# realm	# realm
	my ($cid,$sec);
if ($env{'request.course.id'}) {	if ($env{'request.course.id'}) {
	$cid = $env{'request.course.id'};
	if ($env{'request.course.sec'}) {
	$sec = $env{'request.course.sec'};
	}
	} elsif ($realm =~ m{^/($match_domain)/($match_courseid)(?:\|/(\w+))$}) {
	if (&Apache::lonnet::is_course($1,$2)) {
	$cid = $1.'_'.$2;
	$sec = $3;
	}
	}
	if ($cid) {
if ($env{'request.role'} !~ /^cr/) {	if ($env{'request.role'} !~ /^cr/) {
$role = &Apache::lonnet::plaintext($role,&course_type());	$role = &Apache::lonnet::plaintext($role,&course_type());
} elsif ($role =~ m{^cr/($match_domain)/\1-domainconfig/(\w+)$}) {	} elsif ($role =~ m{^cr/($match_domain)/\1-domainconfig/(\w+)$}) {
Line 5539 sub bodytag {	Line 5766 sub bodytag {
} else {	} else {
$role = (split(/\//,$role,4))[-1];	$role = (split(/\//,$role,4))[-1];
}	}
if ($env{'request.course.sec'}) {	if ($sec) {
$role .= (' 'x2).'- '.&mt('section:').' '.$env{'request.course.sec'};	$role .= (' 'x2).'- '.&mt('section:').' '.$sec;
}	}
$realm = $env{'course.'.$env{'request.course.id'}.'.description'};	$realm = $env{'course.'.$cid.'.description'};
} else {	} else {
$role = &Apache::lonnet::plaintext($role);	$role = &Apache::lonnet::plaintext($role);
}	}
Line 5564 sub bodytag {	Line 5791 sub bodytag {
if ($public) {	if ($public) {
undef($role);	undef($role);
}	}

my $titleinfo = '<h1>'.$title.'</h1>';	my $titleinfo = '<h1>'.$title.'</h1>';
#	#
# Extra info if you are the DC	# Extra info if you are the DC
my $dc_info = '';	my $dc_info = '';
if ($env{'user.adv'} && exists($env{'user.role.dc./'.	if (($env{'user.adv'}) && ($env{'request.course.id'}) &&
$env{'course.'.$env{'request.course.id'}.	(exists($env{'user.role.dc./'.$env{'course.'.$cid.'.domain'}.'/'}))) {
'.domain'}.'/'})) {
my $cid = $env{'request.course.id'};
$dc_info = $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};	$dc_info = $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
$dc_info =~ s/\s+$//;	$dc_info =~ s/\s+$//;
}	}
Line 5591 sub bodytag {	Line 5816 sub bodytag {
&Apache::lonmenu::prepare_functions($env{'request.noversionuri'},	&Apache::lonmenu::prepare_functions($env{'request.noversionuri'},
$forcereg,$args->{'group'},	$forcereg,$args->{'group'},
$args->{'bread_crumbs'},	$args->{'bread_crumbs'},
$advtoolsref,'',\$forbodytag);	$advtoolsref,'','',\$forbodytag);
unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {	unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {
$funclist = $forbodytag;	$funclist = $forbodytag;
}	}
Line 5604 sub bodytag {	Line 5829 sub bodytag {
$bodytag .= Apache::lonhtmlcommon::scripttag(	$bodytag .= Apache::lonhtmlcommon::scripttag(
Apache::lonmenu::utilityfunctions($httphost), 'start');	Apache::lonmenu::utilityfunctions($httphost), 'start');

my ($left,$right) = Apache::lonmenu::primary_menu();	my ($left,$right) = Apache::lonmenu::primary_menu($args->{'links_disabled'});

if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) {	if ($env{'request.noversionuri'} =~ m{^/res/adm/pages/}) {
if ($dc_info) {	if ($dc_info) {
$dc_info = qq\|<span class="LC_cusr_subheading">$dc_info</span>\|;	$dc_info = qq\|<span class="LC_cusr_subheading">$dc_info</span>\|;
}	}
$bodytag .= qq\|<div id="LC_nav_bar">$left $role<br />	$bodytag .= qq\|<div id="LC_nav_bar">$left $role<br />
<em>$realm</em> $dc_info</div>\|;	<em>$realm</em> $dc_info</div>\|;
Line 5632 sub bodytag {	Line 5857 sub bodytag {
}	}
#don't show menus for public users	#don't show menus for public users
if (!$public){	if (!$public){
$bodytag .= Apache::lonmenu::secondary_menu($httphost);	$bodytag .= Apache::lonmenu::secondary_menu($httphost,$args->{'links_disabled'});
$bodytag .= Apache::lonmenu::serverform();	$bodytag .= Apache::lonmenu::serverform();
$bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');	$bodytag .= Apache::lonhtmlcommon::scripttag('', 'end');
if ($env{'request.state'} eq 'construct') {	if ($env{'request.state'} eq 'construct') {
$bodytag .= &Apache::lonmenu::innerregister($forcereg,	$bodytag .= &Apache::lonmenu::innerregister($forcereg,
$args->{'bread_crumbs'});	$args->{'bread_crumbs'},'','',$hostname);
} elsif ($forcereg) {	} elsif ($forcereg) {
$bodytag .= &Apache::lonmenu::innerregister($forcereg,undef,	$bodytag .= &Apache::lonmenu::innerregister($forcereg,undef,
$args->{'group'},	$args->{'group'},
$args->{'hide_buttons'});	$args->{'hide_buttons'},
	$hostname);
} else {	} else {
my $forbodytag;	my $forbodytag;
&Apache::lonmenu::prepare_functions($env{'request.noversionuri'},	&Apache::lonmenu::prepare_functions($env{'request.noversionuri'},
$forcereg,$args->{'group'},	$forcereg,$args->{'group'},
$args->{'bread_crumbs'},	$args->{'bread_crumbs'},
$advtoolsref,'',\$forbodytag);	$advtoolsref,'',$hostname,
	\$forbodytag);
unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {	unless (ref($args->{'bread_crumbs'}) eq 'ARRAY') {
$bodytag .= $forbodytag;	$bodytag .= $forbodytag;
}	}
Line 5789 sub endbodytag {	Line 6016 sub endbodytag {
$endbodytag;	$endbodytag;
}	}
}	}
	if ((ref($args) eq 'HASH') && ($args->{'dashjs'})) {
	$endbodytag = &Apache::lonhtmlcommon::dash_to_minus_js().$endbodytag;
	}
return $endbodytag;	return $endbodytag;
}	}

Line 6161 td.LC_menubuttons_text {	Line 6391 td.LC_menubuttons_text {
background: $tabbg;	background: $tabbg;
}	}

	td.LC_zero_height {
	line-height: 0;
	cellpadding: 0;
	}

table.LC_data_table {	table.LC_data_table {
border: 1px solid #000000;	border: 1px solid #000000;
border-collapse: separate;	border-collapse: separate;
Line 6751 table.LC_prior_tries td {	Line 6986 table.LC_prior_tries td {
padding: 6px;	padding: 6px;
}	}

.LC_answer_unknown {	.LC_answer_unknown,
	.LC_answer_warning {
background: orange;	background: orange;
color: black;	color: black;
padding: 6px;	padding: 6px;
Line 6833 table.LC_data_table tr > td.LC_docs_entr	Line 7069 table.LC_data_table tr > td.LC_docs_entr
color: #990000;	color: #990000;
}	}

	.LC_domprefs_email,
.LC_docs_reinit_warn,	.LC_docs_reinit_warn,
.LC_docs_ext_edit {	.LC_docs_ext_edit {
font-size: x-small;	font-size: x-small;
Line 7741 ul.LC_funclist li {	Line 7978 ul.LC_funclist li {
cursor:pointer;	cursor:pointer;
}	}

	.LCisDisabled {
	cursor: not-allowed;
	opacity: 0.5;
	}

	a[aria-disabled="true"] {
	color: currentColor;
	display: inline-block; /* For IE11/ MS Edge bug */
	pointer-events: none;
	text-decoration: none;
	}

	pre.LC_wordwrap {
	white-space: pre-wrap;
	white-space: -moz-pre-wrap;
	white-space: -pre-wrap;
	white-space: -o-pre-wrap;
	word-wrap: break-word;
	}

/*	/*
styles used by TTH when "Default set of options to pass to tth/m	styles used by TTH when "Default set of options to pass to tth/m
when converting TeX" in course settings has been set	when converting TeX" in course settings has been set
Line 7816 Inputs: $title - optional title for the	Line 8073 Inputs: $title - optional title for the
(side effect of setting	(side effect of setting
$env{'internal.head.redirect'} to the url	$env{'internal.head.redirect'} to the url
redirected too)	redirected too)
	4- whether encrypt check should be skipped
domain -> force to color decorate a page for a specific	domain -> force to color decorate a page for a specific
domain	domain
function -> force usage of a specific rolish color scheme	function -> force usage of a specific rolish color scheme
Line 7878 sub headtag {	Line 8136 sub headtag {
}	}
}	}
if (ref($args->{'redirect'})) {	if (ref($args->{'redirect'})) {
my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};	my ($time,$url,$inhibit_continue,$skip_enc_check) = @{$args->{'redirect'}};
$url = &Apache::lonenc::check_encrypt($url);	if (!$skip_enc_check) {
	$url = &Apache::lonenc::check_encrypt($url);
	}
if (!$inhibit_continue) {	if (!$inhibit_continue) {
$env{'internal.head.redirect'} = $url;	$env{'internal.head.redirect'} = $url;
}	}
Line 7900 ADDMETA	Line 8160 ADDMETA
my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};	my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};
unless (&Apache::lonnet::allowed('mau',$dom_in_use)) {	unless (&Apache::lonnet::allowed('mau',$dom_in_use)) {
my %domdefs = &Apache::lonnet::get_domain_defaults($dom_in_use);	my %domdefs = &Apache::lonnet::get_domain_defaults($dom_in_use);
	my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
	my ($offload,$offloadoth);
if (ref($domdefs{'offloadnow'}) eq 'HASH') {	if (ref($domdefs{'offloadnow'}) eq 'HASH') {
my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
if ($domdefs{'offloadnow'}{$lonhost}) {	if ($domdefs{'offloadnow'}{$lonhost}) {
my $newserver = &Apache::lonnet::spareserver(30000,undef,1,$dom_in_use);	$offload = 1;
if (($newserver) && ($newserver ne $lonhost)) {	if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne $dom_in_use) &&
my $numsec = 5;	(!(($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public')))) {
my $timeout = $numsec * 1000;	unless (&Apache::lonnet::shared_institution($env{'user.domain'})) {
my ($newurl,$locknum,%locks,$msg);	$offloadoth = 1;
if ($env{'request.role.adv'}) {	$dom_in_use = $env{'user.domain'};
($locknum,%locks) = &Apache::lonnet::get_locks();
}	}
my $disable_submit = 0;	}
if ($requrl =~ /$LONCAPA::assess_re/) {	}
$disable_submit = 1;	}
	unless ($offload) {
	if (ref($domdefs{'offloadoth'}) eq 'HASH') {
	if ($domdefs{'offloadoth'}{$lonhost}) {
	if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne $dom_in_use) &&
	(!(($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public')))) {
	unless (&Apache::lonnet::shared_institution($env{'user.domain'})) {
	$offload = 1;
	$offloadoth = 1;
	$dom_in_use = $env{'user.domain'};
	}
}	}
if ($locknum) {	}
my @lockinfo = sort(values(%locks));	}
$msg = &mt('Once the following tasks are complete: ')."\\n".	}
join(", ",sort(values(%locks)))."\\n".	if ($offload) {
&mt('your session will be transferred to a different server, after you click "Roles".');	my $newserver = &Apache::lonnet::spareserver(undef,30000,undef,1,$dom_in_use);
	if (($newserver eq '') && ($offloadoth)) {
	my @domains = &Apache::lonnet::current_machine_domains();
	if (($dom_in_use ne '') && (!grep(/^\Q$dom_in_use\E$/,@domains))) {
	($newserver) = &Apache::lonnet::choose_server($dom_in_use);
	}
	}
	if (($newserver) && ($newserver ne $lonhost)) {
	my $numsec = 5;
	my $timeout = $numsec * 1000;
	my ($newurl,$locknum,%locks,$msg);
	if ($env{'request.role.adv'}) {
	($locknum,%locks) = &Apache::lonnet::get_locks();
	}
	my $disable_submit = 0;
	if ($requrl =~ /$LONCAPA::assess_re/) {
	$disable_submit = 1;
	}
	if ($locknum) {
	my @lockinfo = sort(values(%locks));
	$msg = &mt('Once the following tasks are complete:')." \n".
	join(", ",sort(values(%locks)))."\n";
	if (&show_course()) {
	$msg .= &mt('your session will be transferred to a different server, after you click "Courses".');
} else {	} else {
if (($requrl =~ m{^/res/}) && ($env{'form.submitted'} =~ /^part_/)) {	$msg .= &mt('your session will be transferred to a different server, after you click "Roles".');
$msg = &mt('Your LON-CAPA submission has been recorded')."\\n";	}
}	} else {
$msg .= &mt('Your current LON-CAPA session will be transferred to a different server in [quant,_1,second].',$numsec);	if (($requrl =~ m{^/res/}) && ($env{'form.submitted'} =~ /^part_/)) {
$newurl = '/adm/switchserver?otherserver='.$newserver;	$msg = &mt('Your LON-CAPA submission has been recorded')."\n";
if (($env{'request.role'}) && ($env{'request.role'} ne 'cm')) {	}
$newurl .= '&role='.$env{'request.role'};	$msg .= &mt('Your current LON-CAPA session will be transferred to a different server in [quant,_1,second].',$numsec);
	$newurl = '/adm/switchserver?otherserver='.$newserver;
	if (($env{'request.role'}) && ($env{'request.role'} ne 'cm')) {
	$newurl .= '&role='.$env{'request.role'};
	}
	if ($env{'request.symb'}) {
	my $shownsymb = &Apache::lonenc::check_encrypt($env{'request.symb'});
	if ($shownsymb =~ m{^/enc/}) {
	my $reqdmajor = 2;
	my $reqdminor = 11;
	my $reqdsubminor = 3;
	my $newserverrev = &Apache::lonnet::get_server_loncaparev('',$newserver);
	my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$newserver);
	my ($major,$minor,$subminor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.(\d+\|)[\w.\-]+\'?$/);
	if (($major eq '' && $minor eq '') \|\|
	(($reqdmajor > $major) \|\| (($reqdmajor == $major) && ($reqdminor > $minor)) \|\|
	(($reqdmajor == $major) && ($reqdminor == $minor) && (($subminor eq '') \|\|
	($reqdsubminor > $subminor))))) {
	undef($shownsymb);
	}
}	}
if ($env{'request.symb'}) {	if ($shownsymb) {
$newurl .= '&symb='.$env{'request.symb'};	&js_escape(\$shownsymb);
} else {	$newurl .= '&symb='.$shownsymb;
$newurl .= '&origurl='.$requrl;
}	}
	} else {
	my $shownurl = &Apache::lonenc::check_encrypt($requrl);
	&js_escape(\$shownurl);
	$newurl .= '&origurl='.$shownurl;
}	}
&js_escape(\$msg);	}
$result.=<<OFFLOAD	&js_escape(\$msg);
	$result.=<<OFFLOAD
<meta http-equiv="pragma" content="no-cache" />	<meta http-equiv="pragma" content="no-cache" />
<script type="text/javascript">	<script type="text/javascript">
// <![CDATA[	// <![CDATA[
Line 7957 function LC_Offload_Now() {	Line 8273 function LC_Offload_Now() {
// ]]>	// ]]>
</script>	</script>
OFFLOAD	OFFLOAD
}
}	}
}	}
}	}
Line 8056 sub print_suppression {	Line 8371 sub print_suppression {
}	}
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $blocked = &blocking_status('printout',$cnum,$cdom,undef,1);	my $clientip = &Apache::lonnet::get_requestor_ip();
	my $blocked = &blocking_status('printout',$clientip,$cnum,$cdom,undef,1);
if ($blocked) {	if ($blocked) {
my $checkrole = "cm./$cdom/$cnum";	my $checkrole = "cm./$cdom/$cnum";
if ($env{'request.course.sec'} ne '') {	if ($env{'request.course.sec'} ne '') {
Line 8173 $args - additional optional args support	Line 8489 $args - additional optional args support
to lonhtmlcommon::breadcrumbs	to lonhtmlcommon::breadcrumbs
group -> includes the current group, if page is for a	group -> includes the current group, if page is for a
specific group	specific group
	use_absolute -> for request for external resource or syllabus, this
	will contain https://<hostname> if server uses
	https (as per hosts.tab), but request is for http
	hostname -> hostname, originally from $r->hostname(), (optional).
	links_disabled -> Links in primary and secondary menus are disabled
	(Can enable them once page has loaded - see lonroles.pm
	for an example).

=back	=back

Line 8374 sub modal_link {	Line 8697 sub modal_link {
$target_attr = 'target="'.$target.'"';	$target_attr = 'target="'.$target.'"';
}	}
return <<"ENDLINK";	return <<"ENDLINK";
<a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling','$transparency','$style'); return false;">	<a href="$link" $target_attr title="$title" onclick="javascript:openMyModal('$link',$width,$height,'$scrolling','$transparency','$style'); return false;">$linktext</a>
$linktext</a>
ENDLINK	ENDLINK
}	}

sub modal_adhoc_script {	sub modal_adhoc_script {
my ($funcname,$width,$height,$content)=@_;	my ($funcname,$width,$height,$content,$possmathjax)=@_;
	my $mathjax;
	if ($possmathjax) {
	$mathjax = <<'ENDJAX';
	if (typeof MathJax == 'object') {
	MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
	}
	ENDJAX
	}
return (<<ENDADHOC);	return (<<ENDADHOC);
<script type="text/javascript">	<script type="text/javascript">
// <![CDATA[	// <![CDATA[
Line 8391 sub modal_adhoc_script {	Line 8721 sub modal_adhoc_script {
modalWindow.height = $height;	modalWindow.height = $height;
modalWindow.content = '$content';	modalWindow.content = '$content';
modalWindow.open();	modalWindow.open();
	$mathjax
};	};
// ]]>	// ]]>
</script>	</script>
Line 8398 ENDADHOC	Line 8729 ENDADHOC
}	}

sub modal_adhoc_inner {	sub modal_adhoc_inner {
my ($funcname,$width,$height,$content)=@_;	my ($funcname,$width,$height,$content,$possmathjax)=@_;
my $innerwidth=$width-20;	my $innerwidth=$width-20;
$content=&js_ready(	$content=&js_ready(
&start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).	&start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
Line 8407 sub modal_adhoc_inner {	Line 8738 sub modal_adhoc_inner {
&end_scrollbox().	&end_scrollbox().
&end_page()	&end_page()
);	);
return &modal_adhoc_script($funcname,$width,$height,$content);	return &modal_adhoc_script($funcname,$width,$height,$content,$possmathjax);
}	}

sub modal_adhoc_window {	sub modal_adhoc_window {
my ($funcname,$width,$height,$content,$linktext)=@_;	my ($funcname,$width,$height,$content,$linktext,$possmathjax)=@_;
return &modal_adhoc_inner($funcname,$width,$height,$content).	return &modal_adhoc_inner($funcname,$width,$height,$content,$possmathjax).
"<a href=\"javascript:$funcname();void(0);\">".$linktext."</a>";	"<a href=\"javascript:$funcname();void(0);\">".$linktext."</a>";
}	}

Line 8478 sub end_togglebox {	Line 8809 sub end_togglebox {
}	}

sub LCprogressbar_script {	sub LCprogressbar_script {
my ($id)=@_;	my ($id,$number_to_do)=@_;
return(<<ENDPROGRESS);	if ($number_to_do) {
	return(<<ENDPROGRESS);
<script type="text/javascript">	<script type="text/javascript">
// <![CDATA[	// <![CDATA[
\$('#progressbar$id').progressbar({	\$('#progressbar$id').progressbar({
Line 8492 sub LCprogressbar_script {	Line 8824 sub LCprogressbar_script {
// ]]>	// ]]>
</script>	</script>
ENDPROGRESS	ENDPROGRESS
	} else {
	return(<<ENDPROGRESS);
	<script type="text/javascript">
	// <![CDATA[
	\$('#progressbar$id').progressbar({
	value: false,
	create: function(event, ui) {
	\$('.ui-widget-header', this).css({'background':'#F0F0F0'});
	\$('.ui-progressbar-overlay', this).css({'margin':'0'});
	}
	});
	// ]]>
	</script>
	ENDPROGRESS
	}
}	}

sub LCprogressbarUpdate_script {	sub LCprogressbarUpdate_script {
return(<<ENDPROGRESSUPDATE);	return(<<ENDPROGRESSUPDATE);
<style type="text/css">	<style type="text/css">
.ui-progressbar { position:relative; }	.ui-progressbar { position:relative; }
	.progress-label {position: absolute; width: 100%; text-align: center; top: 1px; font-weight: bold; text-shadow: 1px 1px 0 #fff;margin: 0; line-height: 200%; }
.pblabel { position: absolute; width: 100%; text-align: center; line-height: 1.9em; }	.pblabel { position: absolute; width: 100%; text-align: center; line-height: 1.9em; }
</style>	</style>
<script type="text/javascript">	<script type="text/javascript">
// <![CDATA[	// <![CDATA[
var LCprogressTxt='---';	var LCprogressTxt='---';

function LCupdateProgress(percent,progresstext,id) {	function LCupdateProgress(percent,progresstext,id,maxnum) {
LCprogressTxt=progresstext;	LCprogressTxt=progresstext;
\$('#progressbar'+id).progressbar('value',percent);	if ((maxnum == '') \|\| (maxnum == undefined) \|\| (maxnum == null)) {
	\$('#progressbar'+id).find('.progress-label').text(LCprogressTxt);
	} else if (percent === \$('#progressbar'+id).progressbar( "value" )) {
	\$('#progressbar'+id).find('.pblabel').text(LCprogressTxt);
	} else {
	\$('#progressbar'+id).progressbar('value',percent);
	}
}	}
// ]]>	// ]]>
</script>	</script>
Line 8518 my $LCidcnt;	Line 8872 my $LCidcnt;
my $LCcurrentid;	my $LCcurrentid;

sub LCprogressbar {	sub LCprogressbar {
my ($r)=(@_);	my ($r,$number_to_do,$preamble)=@_;
$LClastpercent=0;	$LClastpercent=0;
$LCidcnt++;	$LCidcnt++;
$LCcurrentid=$$.'_'.$LCidcnt;	$LCcurrentid=$$.'_'.$LCidcnt;
my $starting=&mt('Starting');	my ($starting,$content);
my $content=(<<ENDPROGBAR);	if ($number_to_do) {
	$starting=&mt('Starting');
	$content=(<<ENDPROGBAR);
	$preamble
<div id="progressbar$LCcurrentid">	<div id="progressbar$LCcurrentid">
<span class="pblabel">$starting</span>	<span class="pblabel">$starting</span>
</div>	</div>
ENDPROGBAR	ENDPROGBAR
&r_print($r,$content.&LCprogressbar_script($LCcurrentid));	} else {
	$starting=&mt('Loading...');
	$LClastpercent='false';
	$content=(<<ENDPROGBAR);
	$preamble
	<div id="progressbar$LCcurrentid">
	<div class="progress-label">$starting</div>
	</div>
	ENDPROGBAR
	}
	&r_print($r,$content.&LCprogressbar_script($LCcurrentid,$number_to_do));
}	}

sub LCprogressbarUpdate {	sub LCprogressbarUpdate {
my ($r,$val,$text)=@_;	my ($r,$val,$text,$number_to_do)=@_;
unless ($val) {	if ($number_to_do) {
if ($LClastpercent) {	unless ($val) {
$val=$LClastpercent;	if ($LClastpercent) {
} else {	$val=$LClastpercent;
$val=0;	} else {
}	$val=0;
	}
	}
	if ($val<0) { $val=0; }
	if ($val>100) { $val=0; }
	$LClastpercent=$val;
	unless ($text) { $text=$val.'%'; }
	} else {
	$val = 'false';
}	}
if ($val<0) { $val=0; }
if ($val>100) { $val=0; }
$LClastpercent=$val;
unless ($text) { $text=$val.'%'; }
$text=&js_ready($text);	$text=&js_ready($text);
&r_print($r,<<ENDUPDATE);	&r_print($r,<<ENDUPDATE);
<script type="text/javascript">	<script type="text/javascript">
// <![CDATA[	// <![CDATA[
LCupdateProgress($val,'$text','$LCcurrentid');	LCupdateProgress($val,'$text','$LCcurrentid','$number_to_do');
// ]]>	// ]]>
</script>	</script>
ENDUPDATE	ENDUPDATE
Line 10228 sub sorted_inst_types {	Line 10599 sub sorted_inst_types {
}	}

sub get_institutional_codes {	sub get_institutional_codes {
my ($settings,$allcourses,$LC_code) = @_;	my ($cdom,$crs,$settings,$allcourses,$LC_code) = @_;
# Get complete list of course sections to update	# Get complete list of course sections to update
my @currsections = ();	my @currsections = ();
my @currxlists = ();	my @currxlists = ();
	my (%unclutteredsec,%unclutteredlcsec);
my $coursecode = $$settings{'internal.coursecode'};	my $coursecode = $$settings{'internal.coursecode'};
	my $crskey = $crs.':'.$coursecode;
	@{$unclutteredsec{$crskey}} = ();
	@{$unclutteredlcsec{$crskey}} = ();

if ($$settings{'internal.sectionnums'} ne '') {	if ($$settings{'internal.sectionnums'} ne '') {
@currsections = split(/,/,$$settings{'internal.sectionnums'});	@currsections = split(/,/,$$settings{'internal.sectionnums'});
Line 10243 sub get_institutional_codes {	Line 10618 sub get_institutional_codes {
}	}

if (@currxlists > 0) {	if (@currxlists > 0) {
foreach (@currxlists) {	foreach my $xl (@currxlists) {
if (m/^([^:]+):(\w*)$/) {	if ($xl =~ /^([^:]+):(\w*)$/) {
unless (grep/^$1$/,@{$allcourses}) {	unless (grep/^$1$/,@{$allcourses}) {
push(@{$allcourses},$1);	push(@{$allcourses},$1);
$$LC_code{$1} = $2;	$$LC_code{$1} = $2;
Line 10252 sub get_institutional_codes {	Line 10627 sub get_institutional_codes {
}	}
}	}
}	}

if (@currsections > 0) {	if (@currsections > 0) {
foreach (@currsections) {	foreach my $sec (@currsections) {
if (m/^(\w+):(\w*)$/) {	if ($sec =~ m/^(\w+):(\w*)$/ ) {
my $sec = $coursecode.$1;	my $instsec = $1;
my $lc_sec = $2;	my $lc_sec = $2;
unless (grep/^$sec$/,@{$allcourses}) {	unless (grep/^\Q$instsec\E$/,@{$unclutteredsec{$crskey}}) {
	push(@{$unclutteredsec{$crskey}},$instsec);
	push(@{$unclutteredlcsec{$crskey}},$lc_sec);
	}
	}
	}
	}

	if (@{$unclutteredsec{$crskey}} > 0) {
	my %formattedsec = &Apache::lonnet::auto_instsec_reformat($cdom,'clutter',\%unclutteredsec);
	if ((ref($formattedsec{$crskey}) eq 'ARRAY') && (ref($unclutteredlcsec{$crskey}) eq 'ARRAY')) {
	for (my $i=0; $i<@{$formattedsec{$crskey}}; $i++) {
	my $sec = $coursecode.$formattedsec{$crskey}[$i];
	unless (grep/^\Q$sec\E$/,@{$allcourses}) {
push(@{$allcourses},$sec);	push(@{$allcourses},$sec);
$$LC_code{$sec} = $lc_sec;	$$LC_code{$sec} = $unclutteredlcsec{$crskey}[$i];
}	}
}	}
}	}
Line 12193 sub process_decompression {	Line 12581 sub process_decompression {
if (ref($newdirlistref) eq 'ARRAY') {	if (ref($newdirlistref) eq 'ARRAY') {
foreach my $dir_line (@{$newdirlistref}) {	foreach my $dir_line (@{$newdirlistref}) {
my ($item,undef,undef,$testdir)=split(/\&/,$dir_line,5);	my ($item,undef,undef,$testdir)=split(/\&/,$dir_line,5);
unless (($item =~ /^\.+$/) \|\| ($item eq $file) \|\|	unless (($item =~ /^\.+$/) \|\| ($item eq $file)) {
((@to_skip > 0) && (grep(/^\Q$item\E$/,@to_skip)))) {
push(@newitems,$item);	push(@newitems,$item);
if ($dirptr&$testdir) {	if ($dirptr&$testdir) {
$is_dir{$item} = 1;	$is_dir{$item} = 1;
Line 12782 sub process_extracted_files {	Line 13169 sub process_extracted_files {
$newseqid{$i} = $newidx;	$newseqid{$i} = $newidx;
unless ($errtext) {	unless ($errtext) {
$result .= '<li>'.&mt('Folder: [_1] added to course',	$result .= '<li>'.&mt('Folder: [_1] added to course',
&HTML::Entities::encode($docstitle,'<>&"')).	&HTML::Entities::encode($docstitle,'<>&"'))..
'</li>'."\n";	'</li>'."\n";
}	}
}	}
Line 12792 sub process_extracted_files {	Line 13179 sub process_extracted_files {
my $url = '/uploaded/'.$docudom.'/'.$docuname.'/'.	my $url = '/uploaded/'.$docudom.'/'.$docuname.'/'.
$docstype.'/'.$mapinner{$outer}.'/'.$newidx.'/'.	$docstype.'/'.$mapinner{$outer}.'/'.$newidx.'/'.
$title;	$title;
if (($outer !~ /\D/) && ($mapinner{$outer} !~ /\D/) && ($newidx !~ /\D/)) {	if (($outer !~ /\D/) &&
	(($mapinner{$outer} eq 'default') \|\| ($mapinner{$outer} !~ /\D/)) &&
	($newidx !~ /\D/)) {
if (!-e "$prefix$dir/$docstype/$mapinner{$outer}") {	if (!-e "$prefix$dir/$docstype/$mapinner{$outer}") {
mkdir("$prefix$dir/$docstype/$mapinner{$outer}",0755);	mkdir("$prefix$dir/$docstype/$mapinner{$outer}",0755);
}	}
Line 12807 sub process_extracted_files {	Line 13196 sub process_extracted_files {
$fetch =~ s/^\Q$prefix$dir\E//;	$fetch =~ s/^\Q$prefix$dir\E//;
$prompttofetch{$fetch} = 1;	$prompttofetch{$fetch} = 1;
}	}
}	}
}	}
$LONCAPA::map::resources[$newidx]=	$LONCAPA::map::resources[$newidx]=
$docstitle.':'.$url.':false:normal:res';	$docstitle.':'.$url.':false:normal:res';
Line 12907 sub process_extracted_files {	Line 13296 sub process_extracted_files {
$result .= '<li>'.&mt('[_1] included as a dependency',	$result .= '<li>'.&mt('[_1] included as a dependency',
&HTML::Entities::encode($showpath,'<>&"')).	&HTML::Entities::encode($showpath,'<>&"')).
'</li>'."\n";	'</li>'."\n";
}	unless ($ishome) {
unless ($ishome) {	my $fetch = "$fullpath/$title";
my $fetch = "$fullpath/$title";	$fetch =~ s/^\Q$prefix$dir\E//;
$fetch =~ s/^\Q$prefix$dir\E//;	$prompttofetch{$fetch} = 1;
$prompttofetch{$fetch} = 1;	}
}	}
}	}
}	}
Line 13198 sub upfile_store {	Line 13587 sub upfile_store {
$env{'form.upfile'}=~s/\n+$//gs;	$env{'form.upfile'}=~s/\n+$//gs;

my $datatoken = &valid_datatoken($env{'user.name'}.'_'.$env{'user.domain'}.	my $datatoken = &valid_datatoken($env{'user.name'}.'_'.$env{'user.domain'}.
'_enroll_'.$env{'request.course.id'}.'_'.	'_enroll_'.$env{'request.course.id'}.'_'.
time.'_'.$$);	time.'_'.$$);
return if ($datatoken eq '');	return if ($datatoken eq '');

{	{
my $datafile = $r->dir_config('lonDaemons').	my $datafile = $r->dir_config('lonDaemons').
'/tmp/'.$datatoken.'.tmp';	'/tmp/'.$datatoken.'.tmp';
Line 14139 $requdom domain of requester (if mailing	Line 14529 $requdom domain of requester (if mailing

$reqemail e-mail address of requester (if mailing type is helpdeskmail)	$reqemail e-mail address of requester (if mailing type is helpdeskmail)


Returns: comma separated list of addresses to which to send e-mail.	Returns: comma separated list of addresses to which to send e-mail.

=back	=back
Line 14281 sub build_recipient_list {	Line 14670 sub build_recipient_list {
} elsif ($origmail ne '') {	} elsif ($origmail ne '') {
$lastresort = $origmail;	$lastresort = $origmail;
}	}

if (($mailing eq 'helpdeskmail') && ($lastresort ne '')) {	if (($mailing eq 'helpdeskmail') && ($lastresort ne '')) {
unless (grep(/^\Q$defdom\E$/,&Apache::lonnet::current_machine_domains())) {	unless (grep(/^\Q$defdom\E$/,&Apache::lonnet::current_machine_domains())) {
my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};	my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
Line 14467 jsarray (reference to array of categorie	Line 14855 jsarray (reference to array of categorie
subcats (reference to hash of arrays containing all subcategories within each	subcats (reference to hash of arrays containing all subcategories within each
category, -recursive)	category, -recursive)

	maxd (reference to hash used to hold max depth for all top-level categories).

Returns: nothing	Returns: nothing

Side effects: populates trails and allitems hash references.	Side effects: populates trails and allitems hash references.
Line 14474 Side effects: populates trails and allit	Line 14864 Side effects: populates trails and allit
=cut	=cut

sub extract_categories {	sub extract_categories {
my ($categories,$cats,$trails,$allitems,$idx,$jsarray,$subcats) = @_;	my ($categories,$cats,$trails,$allitems,$idx,$jsarray,$subcats,$maxd) = @_;
if (ref($categories) eq 'HASH') {	if (ref($categories) eq 'HASH') {
&gather_categories($categories,$cats,$idx,$jsarray);	&gather_categories($categories,$cats,$idx,$jsarray);
if (ref($cats->[0]) eq 'ARRAY') {	if (ref($cats->[0]) eq 'ARRAY') {
Line 14500 sub extract_categories {	Line 14890 sub extract_categories {
if (ref($subcats) eq 'HASH') {	if (ref($subcats) eq 'HASH') {
push(@{$subcats->{$item}},&escape($category).':'.&escape($name).':1');	push(@{$subcats->{$item}},&escape($category).':'.&escape($name).':1');
}	}
&recurse_categories($cats,2,$category,$trails,$allitems,\@parents,$subcats);	&recurse_categories($cats,2,$category,$trails,$allitems,\@parents,$subcats,$maxd);
}	}
} else {	} else {
if (ref($subcats) eq 'HASH') {	if (ref($subcats) eq 'HASH') {
$subcats->{$item} = [];	$subcats->{$item} = [];
}	}
	if (ref($maxd) eq 'HASH') {
	$maxd->{$name} = 1;
	}
}	}
}	}
}	}
Line 14543 Side effects: populates trails and allit	Line 14936 Side effects: populates trails and allit
=cut	=cut

sub recurse_categories {	sub recurse_categories {
my ($cats,$depth,$category,$trails,$allitems,$parents,$subcats) = @_;	my ($cats,$depth,$category,$trails,$allitems,$parents,$subcats,$maxd) = @_;
my $shallower = $depth - 1;	my $shallower = $depth - 1;
if (ref($cats->[$depth]{$category}) eq 'ARRAY') {	if (ref($cats->[$depth]{$category}) eq 'ARRAY') {
for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {	for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {
my $name = $cats->[$depth]{$category}[$k];	my $name = $cats->[$depth]{$category}[$k];
my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;	my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
my $trailstr = join(' -> ',(@{$parents},$category));	my $trailstr = join(' » ',(@{$parents},$category));
if ($allitems->{$item} eq '') {	if ($allitems->{$item} eq '') {
push(@{$trails},$trailstr);	push(@{$trails},$trailstr);
$allitems->{$item} = scalar(@{$trails})-1;	$allitems->{$item} = scalar(@{$trails})-1;
Line 14570 sub recurse_categories {	Line 14963 sub recurse_categories {
}	}
}	}
&recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents,	&recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents,
$subcats);	$subcats,$maxd);
pop(@{$parents});	pop(@{$parents});
}	}
} else {	} else {
my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;	my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
my $trailstr = join(' -> ',(@{$parents},$category));	my $trailstr = join(' » ',(@{$parents},$category));
if ($allitems->{$item} eq '') {	if ($allitems->{$item} eq '') {
push(@{$trails},$trailstr);	push(@{$trails},$trailstr);
$allitems->{$item} = scalar(@{$trails})-1;	$allitems->{$item} = scalar(@{$trails})-1;
}	}
	if (ref($maxd) eq 'HASH') {
	if ($depth > $maxd->{$parents->[0]}) {
	$maxd->{$parents->[0]} = $depth;
	}
	}
}	}
return;	return;
}	}
Line 14611 sub assign_categories_table {	Line 15009 sub assign_categories_table {
my ($cathash,$currcat,$type,$disabled) = @_;	my ($cathash,$currcat,$type,$disabled) = @_;
my $output;	my $output;
if (ref($cathash) eq 'HASH') {	if (ref($cathash) eq 'HASH') {
my (@cats,@trails,%allitems,%idx,@jsarray,@path,$maxdepth);	my (@cats,@trails,%allitems,%idx,@jsarray,%maxd,@path,$maxdepth);
&extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray);	&extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray,\%maxd);
$maxdepth = scalar(@cats);	$maxdepth = scalar(@cats);
if (@cats > 0) {	if (@cats > 0) {
my $itemcount = 0;	my $itemcount = 0;
Line 14822 sub commit_studentrole {	Line 15220 sub commit_studentrole {
}	}
$oldsecurl = $uurl;	$oldsecurl = $uurl;
$expire_role_result =	$expire_role_result =
&Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,'','',$context);	&Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,
	'','','',$context);
if ($env{'request.course.sec'} ne '') {	if ($env{'request.course.sec'} ne '') {
if ($expire_role_result eq 'refused') {	if ($expire_role_result eq 'refused') {
my @roles = ('st');	my @roles = ('st');
Line 15149 sub construct_course {	Line 15548 sub construct_course {
'plc.users.denied',	'plc.users.denied',
'hidefromcat',	'hidefromcat',
'checkforpriv',	'checkforpriv',
'categories',	'categories'],
'internal.uniquecode'],
$$crsudom,$$crsunum);	$$crsudom,$$crsunum);
if ($args->{'textbook'}) {	if ($args->{'textbook'}) {
$cenv{'internal.textbook'} = $args->{'textbook'};	$cenv{'internal.textbook'} = $args->{'textbook'};
Line 15186 sub construct_course {	Line 15584 sub construct_course {
$cenv{'internal.defaultcredits'} = $args->{'defaultcredits'};	$cenv{'internal.defaultcredits'} = $args->{'defaultcredits'};
}	}
my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.	my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
	my @oklcsecs = (); # Used to accumulate LON-CAPA sections for validated institutional sections.
if ($args->{'crssections'}) {	if ($args->{'crssections'}) {
$cenv{'internal.sectionnums'} = '';	$cenv{'internal.sectionnums'} = '';
if ($args->{'crssections'} =~ m/,/) {	if ($args->{'crssections'} =~ m/,/) {
Line 15199 sub construct_course {	Line 15598 sub construct_course {
my $class = $args->{'crscode'}.$sec;	my $class = $args->{'crscode'}.$sec;
my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});	my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
$cenv{'internal.sectionnums'} .= $item.',';	$cenv{'internal.sectionnums'} .= $item.',';
unless ($addcheck eq 'ok') {	if ($addcheck eq 'ok') {
	unless (grep(/^\Q$gp\E$/,@oklcsecs)) {
	push(@oklcsecs,$gp);
	}
	} else {
push(@badclasses,$class);	push(@badclasses,$class);
}	}
}	}
Line 15227 sub construct_course {	Line 15630 sub construct_course {
my ($xl,$gp) = split/:/,$item;	my ($xl,$gp) = split/:/,$item;
my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});	my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
$cenv{'internal.crosslistings'} .= $item.',';	$cenv{'internal.crosslistings'} .= $item.',';
unless ($addcheck eq 'ok') {	if ($addcheck eq 'ok') {
	unless (grep(/^\Q$gp\E$/,@oklcsecs)) {
	push(@oklcsecs,$gp);
	}
	} else {
push(@badclasses,$xl);	push(@badclasses,$xl);
}	}
}	}
Line 15290 sub construct_course {	Line 15697 sub construct_course {
if ($args->{'no_end_date'}) {	if ($args->{'no_end_date'}) {
$args->{'endaccess'} = 0;	$args->{'endaccess'} = 0;
}	}
	# If an official course with institutional sections is created by cloning
	# an existing course, section-specific hiding of course totals in student's
	# view of grades as copied from cloned course, will be checked for valid
	# sections.
	if (($can_clone && $cloneid) &&
	($cenv{'internal.coursecode'} ne '') &&
	($cenv{'grading'} eq 'standard') &&
	($cenv{'hidetotals'} ne '') &&
	($cenv{'hidetotals'} ne 'all')) {
	my @hidesecs;
	my $deletehidetotals;
	if (@oklcsecs) {
	foreach my $sec (split(/,/,$cenv{'hidetotals'})) {
	if (grep(/^\Q$sec$/,@oklcsecs)) {
	push(@hidesecs,$sec);
	}
	}
	if (@hidesecs) {
	$cenv{'hidetotals'} = join(',',@hidesecs);
	} else {
	$deletehidetotals = 1;
	}
	} else {
	$deletehidetotals = 1;
	}
	if ($deletehidetotals) {
	delete($cenv{'hidetotals'});
	&Apache::lonnet::del('environment',['hidetotals'],$$crsudom,$$crsunum);
	}
	}
$cenv{'internal.autostart'}=$args->{'enrollstart'};	$cenv{'internal.autostart'}=$args->{'enrollstart'};
$cenv{'internal.autoend'}=$args->{'enrollend'};	$cenv{'internal.autoend'}=$args->{'enrollend'};
$cenv{'default_enrollment_start_date'}=$args->{'startaccess'};	$cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
Line 15391 sub construct_course {	Line 15828 sub construct_course {
# Open all assignments	# Open all assignments
#	#
if ($args->{'openall'}) {	if ($args->{'openall'}) {
	my $opendate = time;
	if ($args->{'openallfrom'} =~ /^\d+$/) {
	$opendate = $args->{'openallfrom'};
	}
my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';	my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
my %storecontent = ($storeunder => time,	my %storecontent = ($storeunder => $opendate,
$storeunder.'.type' => 'date_start');	$storeunder.'.type' => 'date_start');
	$outcome .= &mt('All assignments open starting [_1]',
$outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput	&Apache::lonlocal::locallocaltime($opendate)).': '.
('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;	&Apache::lonnet::cput
	('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
}	}
#	#
# Set first page	# Set first page
Line 15595 sub compare_arrays {	Line 16037 sub compare_arrays {
return @difference;	return @difference;
}	}

	sub lon_status_items {
	my %defaults = (
	E => 100,
	W => 4,
	N => 1,
	U => 5,
	threshold => 200,
	sysmail => 2500,
	);
	my %names = (
	E => 'Errors',
	W => 'Warnings',
	N => 'Notices',
	U => 'Unsent',
	);
	return (\%defaults,\%names);
	}

# -------------------------------------------------------- Initialize user login	# -------------------------------------------------------- Initialize user login
sub init_user_environment {	sub init_user_environment {
my ($r, $username, $domain, $authhost, $form, $args) = @_;	my ($r, $username, $domain, $authhost, $form, $args) = @_;
Line 15630 sub init_user_environment {	Line 16090 sub init_user_environment {
opendir(DIR,$lonids);	opendir(DIR,$lonids);
while ($filename=readdir(DIR)) {	while ($filename=readdir(DIR)) {
if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {	if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
unlink($lonids.'/'.$filename);	if (tie(my %oldenv,'GDBM_File',"$lonids/$filename",
	&GDBM_READER(),0640)) {
	my $linkedfile;
	if (exists($oldenv{'user.linkedenv'})) {
	$linkedfile = $oldenv{'user.linkedenv'};
	}
	untie(%oldenv);
	if (unlink("$lonids/$filename")) {
	if ($linkedfile =~ /^[a-f0-9]+_linked$/) {
	if (-l "$lonids/$linkedfile.id") {
	unlink("$lonids/$linkedfile.id");
	}
	}
	}
	} else {
	unlink($lonids.'/'.$filename);
	}
}	}
}	}
closedir(DIR);	closedir(DIR);
Line 15665 sub init_user_environment {	Line 16141 sub init_user_environment {

my %userenv = &Apache::lonnet::dump('environment',$domain,$username);	my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
my ($tmp) = keys(%userenv);	my ($tmp) = keys(%userenv);
if ($tmp =~ /^(con_lost\|error\|no_such_host)/i) {	if ($tmp !~ /^(con_lost\|error\|no_such_host)/i) {
	} else {
undef(%userenv);	undef(%userenv);
}	}
if (($userenv{'interface'}) && (!$form->{'interface'})) {	if (($userenv{'interface'}) && (!$form->{'interface'})) {
Line 15680 sub init_user_environment {	Line 16157 sub init_user_environment {
# --------------------------------------------------------- Write first profile	# --------------------------------------------------------- Write first profile

{	{
	my $ip = &Apache::lonnet::get_requestor_ip();
my %initial_env =	my %initial_env =
("user.name" => $username,	("user.name" => $username,
"user.domain" => $domain,	"user.domain" => $domain,
Line 15698 sub init_user_environment {	Line 16176 sub init_user_environment {
"request.course.sec" => '',	"request.course.sec" => '',
"request.role" => 'cm',	"request.role" => 'cm',
"request.role.adv" => $env{'user.adv'},	"request.role.adv" => $env{'user.adv'},
"request.host" => $ENV{'REMOTE_ADDR'},);	"request.host" => $ip,);

if ($form->{'localpath'}) {	if ($form->{'localpath'}) {
$initial_env{"browser.localpath"} = $form->{'localpath'};	$initial_env{"browser.localpath"} = $form->{'localpath'};
Line 16558 sub needs_coursereinit {	Line 17036 sub needs_coursereinit {
$interval = 600;	$interval = 600;
}	}
if (($now-$env{'request.course.timechecked'})>$interval) {	if (($now-$env{'request.course.timechecked'})>$interval) {
&Apache::lonnet::appenv({'request.course.timechecked'=>$now});
my $blocked = &blocking_status('reinit',$cnum,$cdom,undef,1);
if ($blocked) {
return ();
}
my $lastchange = &Apache::lonnet::get_coursechange($cdom,$cnum);	my $lastchange = &Apache::lonnet::get_coursechange($cdom,$cnum);
	&Apache::lonnet::appenv({'request.course.timechecked'=>$now});
if ($lastchange > $env{'request.course.tied'}) {	if ($lastchange > $env{'request.course.tied'}) {
my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');	my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
if ($curr_reqd_hash{'internal.releaserequired'} ne '') {	if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
Line 16678 sub recurse_supplemental {	Line 17152 sub recurse_supplemental {
if ($fatal) {	if ($fatal) {
$errors ++;	$errors ++;
} else {	} else {
if ($#LONCAPA::map::resources > 0) {	my @order = @LONCAPA::map::order;
foreach my $res (@LONCAPA::map::resources) {	if (@order > 0) {
my ($title,$src,$ext,$type,$status)=split(/\:/,$res);	my @resources = @LONCAPA::map::resources;
	my @resparms = @LONCAPA::map::resparms;
	foreach my $idx (@order) {
	my ($title,$src,$ext,$type,$status)=split(/\:/,$resources[$idx]);
if (($src ne '') && ($status eq 'res')) {	if (($src ne '') && ($status eq 'res')) {
if ($src =~ m{^\Q/uploaded/$cdom/$cnum/\E(supplemental_\d+\.sequence)$}) {	if ($src =~ m{^\Q/uploaded/$cdom/$cnum/\E(supplemental_\d+\.sequence)$}) {
($numfiles,$errors) = &recurse_supplemental($cnum,$cdom,$1,$numfiles,$errors);	($numfiles,$errors) = &recurse_supplemental($cnum,$cdom,$1,$numfiles,$errors);
Line 16766 sub symb_to_docspath {	Line 17243 sub symb_to_docspath {
}	}

sub captcha_display {	sub captcha_display {
my ($context,$lonhost) = @_;	my ($context,$lonhost,$defdom) = @_;
my ($output,$error);	my ($output,$error);
my ($captcha,$pubkey,$privkey,$version) =	my ($captcha,$pubkey,$privkey,$version) =
&get_captcha_config($context,$lonhost);	&get_captcha_config($context,$lonhost,$defdom);
if ($captcha eq 'original') {	if ($captcha eq 'original') {
$output = &create_captcha();	$output = &create_captcha();
unless ($output) {	unless ($output) {
Line 16785 sub captcha_display {	Line 17262 sub captcha_display {
}	}

sub captcha_response {	sub captcha_response {
my ($context,$lonhost) = @_;	my ($context,$lonhost,$defdom) = @_;
my ($captcha_chk,$captcha_error);	my ($captcha_chk,$captcha_error);
my ($captcha,$pubkey,$privkey,$version) = &get_captcha_config($context,$lonhost);	my ($captcha,$pubkey,$privkey,$version) = &get_captcha_config($context,$lonhost,$defdom);
if ($captcha eq 'original') {	if ($captcha eq 'original') {
($captcha_chk,$captcha_error) = &check_captcha();	($captcha_chk,$captcha_error) = &check_captcha();
} elsif ($captcha eq 'recaptcha') {	} elsif ($captcha eq 'recaptcha') {
Line 16799 sub captcha_response {	Line 17276 sub captcha_response {
}	}

sub get_captcha_config {	sub get_captcha_config {
my ($context,$lonhost) = @_;	my ($context,$lonhost,$dom_in_effect) = @_;
my ($captcha,$pubkey,$privkey,$version,$hashtocheck);	my ($captcha,$pubkey,$privkey,$version,$hashtocheck);
my $hostname = &Apache::lonnet::hostname($lonhost);	my $hostname = &Apache::lonnet::hostname($lonhost);
my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);	my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
Line 16847 sub get_captcha_config {	Line 17324 sub get_captcha_config {
} elsif ($domconfhash{$serverhomedom.'.login.captcha'} eq 'original') {	} elsif ($domconfhash{$serverhomedom.'.login.captcha'} eq 'original') {
$captcha = 'original';	$captcha = 'original';
}	}
	} elsif ($context eq 'passwords') {
	if ($dom_in_effect) {
	my %passwdconf = &Apache::lonnet::get_passwdconf($dom_in_effect);
	if ($passwdconf{'captcha'} eq 'recaptcha') {
	if (ref($passwdconf{'recaptchakeys'}) eq 'HASH') {
	$pubkey = $passwdconf{'recaptchakeys'}{'public'};
	$privkey = $passwdconf{'recaptchakeys'}{'private'};
	}
	if ($privkey && $pubkey) {
	$captcha = 'recaptcha';
	$version = $passwdconf{'recaptchaversion'};
	if ($version ne '2') {
	$version = 1;
	}
	} else {
	$captcha = 'original';
	}
	} elsif ($passwdconf{'captcha'} ne 'notused') {
	$captcha = 'original';
	}
	}
}	}
return ($captcha,$pubkey,$privkey,$version);	return ($captcha,$pubkey,$privkey,$version);
}	}
Line 16864 sub create_captcha {	Line 17362 sub create_captcha {

if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') {	if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') {
$output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".	$output = '<input type="hidden" name="crypt" value="'.$md5sum.'" />'."\n".
	'<span class="LC_nobreak">'.
&mt('Type in the letters/numbers shown below').' '.	&mt('Type in the letters/numbers shown below').' '.
'<input type="text" size="5" name="code" value="" autocomplete="off" />'.	'<input type="text" size="5" name="code" value="" autocomplete="new-password" />'.
'<br />'.	'</span><br />'.
'<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png" alt="captcha" />';	'<img src="'.$captcha_params{'www_output_dir'}.'/'.$md5sum.'.png" alt="captcha" />';
last;	last;
}	}
}	}
	if ($output eq '') {
	&Apache::lonnet::logthis("Failed to create Captcha code after $tries attempts.");
	}
return $output;	return $output;
}	}

Line 16909 sub check_captcha {	Line 17411 sub check_captcha {
sub create_recaptcha {	sub create_recaptcha {
my ($pubkey,$version) = @_;	my ($pubkey,$version) = @_;
if ($version >= 2) {	if ($version >= 2) {
return '<div class="g-recaptcha" data-sitekey="'.$pubkey.'"></div>';	return '<div class="g-recaptcha" data-sitekey="'.$pubkey.'"></div>'.
	'<div style="padding:0;clear:both;margin:0;border:0"></div>';
} else {	} else {
my $use_ssl;	my $use_ssl;
if ($ENV{'SERVER_PORT'} == 443) {	if ($ENV{'SERVER_PORT'} == 443) {
Line 16927 sub create_recaptcha {	Line 17430 sub create_recaptcha {
sub check_recaptcha {	sub check_recaptcha {
my ($privkey,$version) = @_;	my ($privkey,$version) = @_;
my $captcha_chk;	my $captcha_chk;
	my $ip = &Apache::lonnet::get_requestor_ip();
if ($version >= 2) {	if ($version >= 2) {
my $ua = LWP::UserAgent->new;	my $ua = LWP::UserAgent->new;
$ua->timeout(10);	$ua->timeout(10);
my %info = (	my %info = (
secret => $privkey,	secret => $privkey,
response => $env{'form.g-recaptcha-response'},	response => $env{'form.g-recaptcha-response'},
remoteip => $ENV{'REMOTE_ADDR'},	remoteip => $ip,
);	);
my $response = $ua->post('https://www.google.com/recaptcha/api/siteverify',\%info);	my $response = $ua->post('https://www.google.com/recaptcha/api/siteverify',\%info);
if ($response->is_success) {	if ($response->is_success) {
Line 16949 sub check_recaptcha {	Line 17453 sub check_recaptcha {
my $captcha_result =	my $captcha_result =
$captcha->check_answer(	$captcha->check_answer(
$privkey,	$privkey,
$ENV{'REMOTE_ADDR'},	$ip,
$env{'form.recaptcha_challenge_field'},	$env{'form.recaptcha_challenge_field'},
$env{'form.recaptcha_response_field'},	$env{'form.recaptcha_response_field'},
);	);
Line 16998 sub cleanup_html {	Line 17502 sub cleanup_html {

# Checks for critical messages and returns a redirect url if one exists.	# Checks for critical messages and returns a redirect url if one exists.
# $interval indicates how often to check for messages.	# $interval indicates how often to check for messages.
# $context is the calling context -- roles, grades, contents, menu or flip.
sub critical_redirect {	sub critical_redirect {
my ($interval,$context) = @_;	my ($interval) = @_;
	unless (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
	return ();
	}
if ((time-$env{'user.criticalcheck.time'})>$interval) {	if ((time-$env{'user.criticalcheck.time'})>$interval) {
if (($env{'request.course.id'}) && (($context eq 'flip') \|\| ($context eq 'contents'))) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $blocked = &blocking_status('alert',$cnum,$cdom,undef,1);
if ($blocked) {
my $checkrole = "cm./$cdom/$cnum";
if ($env{'request.course.sec'} ne '') {
$checkrole .= "/$env{'request.course.sec'}";
}
unless ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) &&
($env{'request.role'} !~ m{^st\./$cdom/$cnum})) {
return;
}
}
}
my @what=&Apache::lonnet::dump('critical', $env{'user.domain'},	my @what=&Apache::lonnet::dump('critical', $env{'user.domain'},
$env{'user.name'});	$env{'user.name'});
&Apache::lonnet::appenv({'user.criticalcheck.time'=>time});	&Apache::lonnet::appenv({'user.criticalcheck.time'=>time});
my $redirecturl;	my $redirecturl;
if ($what[0]) {	if ($what[0]) {
if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {	if (($what[0] ne 'con_lost') && ($what[0] ne 'no_such_host') && ($what[0]!~/^error\:/)) {
$redirecturl='/adm/email?critical=display';	$redirecturl='/adm/email?critical=display';
my $url=&Apache::lonnet::absolute_url().$redirecturl;	my $url=&Apache::lonnet::absolute_url().$redirecturl;
return (1, $url);	return (1, $url);
Line 17082 sub des_decrypt {	Line 17573 sub des_decrypt {
return $plaintext;	return $plaintext;
}	}

sub make_short_symbs {	sub is_nonframeable {
my ($cdom,$cnum,$navmap) = @_;	my ($url,$absolute,$hostname,$ip,$nocache) = @_;
return unless (ref($navmap));	my ($remprotocol,$remhost) = ($url =~ m{^(https?)\://(([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,})}i);
my ($numnew,@errors);	return if (($remprotocol eq '') \|\| ($remhost eq ''));
my @toshorten = &Apache::loncommon::get_env_multiple('form.addtiny');
if (@toshorten) {	$remprotocol = lc($remprotocol);
my (%maps,%resources,%titles);	$remhost = lc($remhost);
&Apache::loncourserespicker::enumerate_course_contents($navmap,\%maps,\%resources,\%titles,	my $remport = 80;
'shorturls',$cdom,$cnum);	if ($remprotocol eq 'https') {
my %tocreate;	$remport = 443;
if (keys(%resources)) {	}
foreach my $item (sort {$a <=> $b} (@toshorten)) {	my ($result,$cached) = &Apache::lonnet::is_cached_new('noiframe',$remhost.':'.$remport);
my $symb = $resources{$item};	if ($cached) {
if ($symb) {	unless ($nocache) {
$tocreate{$cnum.'&'.$symb} = 1;	if ($result) {
}	return 1;
	} else {
	return 0;
}	}
}	}
if (keys(%tocreate)) {	}
my %coursetiny = &Apache::lonnet::dump('tiny',$cdom,$cnum);	my $uselink;
my $su = Short::URL->new(no_vowels => 1);	my $request = new HTTP::Request('HEAD',$url);
my $init = '';	my $ua = LWP::UserAgent->new;
my (%newunique,%addcourse,%courseonly,%failed);	$ua->timeout(5);
# get lock on tiny db	my $response=$ua->request($request);
my $now = time;	if ($response->is_success()) {
my $lockhash = {	my $secpolicy = lc($response->header('content-security-policy'));
"lock\0$now" => $env{'user.name'}.	my $xframeop = lc($response->header('x-frame-options'));
':'.$env{'user.domain'},	$secpolicy =~ s/^\s+\|\s+$//g;
};	$xframeop =~ s/^\s+\|\s+$//g;
my $tries = 0;	if (($secpolicy ne '') \|\| ($xframeop ne '')) {
my $gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom);	my $remotehost = $remprotocol.'://'.$remhost;
my ($code,$error);	my ($origin,$protocol,$port);
while (($gotlock ne 'ok') && ($tries<3)) {	if ($ENV{'SERVER_PORT'} =~/^\d+$/) {
$tries ++;	$port = $ENV{'SERVER_PORT'};
sleep 1;	} else {
$gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom);	$port = 80;
}	}
if ($gotlock eq 'ok') {	if ($absolute eq '') {
$init = &shorten_symbs($cdom,$init,$su,\%coursetiny,\%tocreate,\%newunique,	$protocol = 'http:';
\%addcourse,\%courseonly,\%failed);	if ($port == 443) {
if (keys(%failed)) {	$protocol = 'https:';
my $numfailed = scalar(keys(%failed));	}
push(@errors,&mt('error: could not obtain unique six character URL for [quant,_1,resource]',$numfailed));	$origin = $protocol.'//'.lc($hostname);
}	} else {
if (keys(%newunique)) {	$origin = lc($absolute);
my $putres = &Apache::lonnet::newput_dom('tiny',\%newunique,$cdom);	($protocol,$hostname) = ($absolute =~ m{^(https?:)//([^/]+)$});
if ($putres eq 'ok') {	}
$numnew = scalar(keys(%newunique));	if (($secpolicy) && ($secpolicy =~ /\Qframe-ancestors\E([^;]*)(;\|$)/)) {
my $newputres = &Apache::lonnet::newput('tiny',\%addcourse,$cdom,$cnum);	my $framepolicy = $1;
unless ($newputres eq 'ok') {	$framepolicy =~ s/^\s+\|\s+$//g;
push(@errors,&mt('error: could not store course look-up of short URLs'));	my @policies = split(/\s+/,$framepolicy);
}	if (@policies) {
	if (grep(/^\Q'none'\E$/,@policies)) {
	$uselink = 1;
} else {	} else {
push(@errors,&mt('error: could not store unique six character URLs'));	$uselink = 1;
	if ((grep(/^\Q*\E$/,@policies)) \|\| (grep(/^\Q$protocol\E$/,@policies)) \|\|
	(($origin ne '') && (grep(/^\Q$origin\E$/,@policies))) \|\|
	(($ip ne '') && (grep(/^\Q$ip\E$/,@policies)))) {
	undef($uselink);
	}
	if ($uselink) {
	if (grep(/^\Q'self'\E$/,@policies)) {
	if (($origin ne '') && ($remotehost eq $origin)) {
	undef($uselink);
	}
	}
	}
	if ($uselink) {
	my @possok;
	if ($ip ne '') {
	push(@possok,$ip);
	}
	my $hoststr = '';
	foreach my $part (reverse(split(/\./,$hostname))) {
	if ($hoststr eq '') {
	$hoststr = $part;
	} else {
	$hoststr = "$part.$hoststr";
	}
	if ($hoststr eq $hostname) {
	push(@possok,$hostname);
	} else {
	push(@possok,"*.$hoststr");
	}
	}
	if (@possok) {
	foreach my $poss (@possok) {
	last if (!$uselink);
	foreach my $policy (@policies) {
	if ($policy =~ m{^(\Q$protocol\E//\|)\Q$poss\E(\Q:$port\E\|)$}) {
	undef($uselink);
	last;
	}
	}
	}
	}
	}
}	}
}	}
}	} elsif ($xframeop ne '') {
}	$uselink = 1;
}	my @policies = split(/\s,\s/,$xframeop);
return ($numnew,\@errors);	if (@policies) {
}	unless (grep(/^deny$/,@policies)) {
	if ($origin ne '') {
sub shorten_symbs {	if (grep(/^sameorigin$/,@policies)) {
my ($cdom,$init,$su,$coursetiny,$tocreate,$newunique,$addcourse,$courseonly,$failed) = @_;	if ($remotehost eq $origin) {
return unless ((ref($su)) && (ref($coursetiny) eq 'HASH') && (ref($tocreate) eq 'HASH') &&	undef($uselink);
(ref($newunique) eq 'HASH') && (ref($addcourse) eq 'HASH') &&	}
(ref($courseonly) eq 'HASH') && (ref($failed) eq 'HASH'));	}
my (%possibles,%collisions);	if ($uselink) {
foreach my $key (keys(%{$tocreate})) {	foreach my $policy (@policies) {
my $num = String::CRC32::crc32($key);	if ($policy =~ /^allow-from\s*(.+)$/) {
my $tiny = $su->encode($num,$init);	my $allowfrom = $1;
if ($tiny) {	if (($allowfrom ne '') && ($allowfrom eq $origin)) {
$possibles{$tiny} = $key;	undef($uselink);
}	last;
}	}
if (!$init) {	}
$init = 1;	}
} else {	}
$init ++;	}
}
if (keys(%possibles)) {
my @posstiny = keys(%possibles);
my $configuname = &Apache::lonnet::get_domainconfiguser($cdom);
my %currtiny = &Apache::lonnet::get('tiny',\@posstiny,$cdom,$configuname);
if (keys(%currtiny)) {
foreach my $key (keys(%currtiny)) {
next if ($currtiny{$key} eq '');
if ($currtiny{$key} eq $possibles{$key}) {
my ($tcnum,$tsymb) = split(/\&/,$currtiny{$key});
unless (($coursetiny->{$tsymb} eq $key) \|\| ($addcourse->{$tsymb} eq $key) \|\| ($courseonly->{$tsymb} eq $key)) {
$courseonly->{$tsymb} = $key;
}	}
} else {
$collisions{$possibles{$key}} = 1;
}	}
delete($possibles{$key});
}
}
foreach my $key (keys(%possibles)) {
$newunique->{$key} = $possibles{$key};
my ($tcnum,$tsymb) = split(/\&/,$possibles{$key});
unless (($coursetiny->{$tsymb} eq $key) \|\| ($addcourse->{$tsymb} eq $key) \|\| ($courseonly->{$tsymb} eq $key)) {
$addcourse->{$tsymb} = $key;
}	}
}	}
}	}
if (keys(%collisions)) {	if ($nocache) {
if ($init <5) {	if ($cached) {
if (!$init) {	my $devalidate;
$init = 1;	if ($uselink && !$result) {
} else {	$devalidate = 1;
$init ++;	} elsif (!$uselink && $result) {
	$devalidate = 1;
}	}
$init = &shorten_symbs($cdom,$init,$su,$coursetiny,\%collisions,	if ($devalidate) {
$newunique,$addcourse,$courseonly,$failed);	&Apache::lonnet::devalidate_cache_new('noiframe',$remhost.':'.$remport);
} else {
foreach my $key (keys(%collisions)) {
$failed->{$key} = 1;
}	}
}	}
	} else {
	if ($uselink) {
	$result = 1;
	} else {
	$result = 0;
	}
	&Apache::lonnet::do_cache_new('noiframe',$remhost.':'.$remport,$result,3600);
}	}
return $init;	return $uselink;
}	}

1;	1;

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

Removed from v.1.1075.2.127.2.9
changed lines
	Added in v.1.1075.2.167