loncom/auth/lonroles.pm - diff

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Diff for /loncom/auth/lonroles.pm between versions 1.231.4.15 and 1.255

version 1.231.4.15, 2010/08/20 03:40:01	version 1.255, 2010/07/30 20:35:16
Line 57 course they should act on, etc. Both in	Line 57 course they should act on, etc. Both in
handler determines via C<lonnet>'s C<&allowed> function that a certain	handler determines via C<lonnet>'s C<&allowed> function that a certain
action is not allowed, C<lonroles> is used as error handler. This	action is not allowed, C<lonroles> is used as error handler. This
allows the user to select another role which may have permission to do	allows the user to select another role which may have permission to do
what they were trying to do. C<lonroles> can also be accessed via the	what they were trying to do.
B<CRS> button in the Remote Control.

=begin latex	=begin latex

Line 138 use Apache::lonannounce;	Line 137 use Apache::lonannounce;
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonpageflip();	use Apache::lonpageflip();
use Apache::lonnavdisplay();	use Apache::lonnavdisplay();
	use Apache::loncoursequeueadmin;
use GDBM_File;	use GDBM_File;
use LONCAPA qw(:DEFAULT :match);	use LONCAPA qw(:DEFAULT :match);
use HTML::Entities;	use HTML::Entities;


sub redirect_user {	sub redirect_user {
my ($r,$title,$url,$msg,$launch_nav) = @_;	my ($r,$title,$url,$msg) = @_;
$msg = $title if (! defined($msg));	$msg = $title if (! defined($msg));
&Apache::loncommon::content_type($r,'text/html');	&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);	&Apache::loncommon::no_cache($r);
$r->send_http_header;	$r->send_http_header;
my $swinfo=&Apache::lonmenu::rawconfig();
my $navwindow;
if ($launch_nav eq 'on') {
$navwindow.=&Apache::lonnavdisplay::launch_win('now',undef,undef,
($url =~ m-^/adm/whatsnew-));
} else {
$navwindow.=&Apache::lonnavmaps::close();
}

	# Breadcrumbs
	my $brcrum = [{'href' => $url,
	'text' => 'Switching Role'},];
my $start_page = &Apache::loncommon::start_page('Switching Role',undef,	my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
{'redirect' => [1,$url]});	{'redirect' => [1,$url],
	'bread_crumbs' => $brcrum,});
my $end_page = &Apache::loncommon::end_page();	my $end_page = &Apache::loncommon::end_page();

# Note to style police:	# Note to style police:
Line 167 sub redirect_user {	Line 163 sub redirect_user {
$url=~s/ /\%20/g;	$url=~s/ /\%20/g;
$r->print(<<ENDREDIR);	$r->print(<<ENDREDIR);
$start_page	$start_page
<script type="text/javascript">
// <![CDATA[
$swinfo
// ]]>
</script>
$navwindow
<p>$msg</p>	<p>$msg</p>
$end_page	$end_page
ENDREDIR	ENDREDIR
Line 185 sub error_page {	Line 175 sub error_page {
&Apache::loncommon::no_cache($r);	&Apache::loncommon::no_cache($r);
$r->send_http_header;	$r->send_http_header;
return OK if $r->header_only;	return OK if $r->header_only;
$r->print(&Apache::loncommon::start_page('Problems during Course Initialization').	# Breadcrumbs
	my $brcrum = [{'href' => $dest,
	'text' => 'Problems during Course Initialization'},];
	$r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
	undef,
	{'bread_crumbs' => $brcrum,})
	);
	$r->print(
'<script type="text/javascript">'.	'<script type="text/javascript">'.
'// <![CDATA['.	'// <![CDATA['.
&Apache::lonmenu::rawconfig().	&Apache::lonmenu::rawconfig().
'// ]]>'.	'// ]]>'.
'</script>'.	'</script>'.
'<p class="LC_error">'.&mt('The following problems occurred:').	'<p class="LC_error">'.&mt('The following problems occurred:').
'<br />'.	'<br />'.
$error.	$error.
'</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.	'</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
&Apache::loncommon::end_page());	);
	$r->print(&Apache::loncommon::end_page());
}	}

sub handler {	sub handler {
Line 212 sub handler {	Line 210 sub handler {
my %dcroles = ();	my %dcroles = ();
my $numdc = &check_fordc(\%dcroles,$then);	my $numdc = &check_fordc(\%dcroles,$then);
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});	&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
	my $loncaparev = $Apache::lonnet::perlvar{'lonVersion'};

# ================================================================== Roles Init	# ================================================================== Roles Init
if ($env{'form.selectrole'}) {	if ($env{'form.selectrole'}) {
Line 325 sub handler {	Line 324 sub handler {
if ($tstatus eq 'is') {	if ($tstatus eq 'is') {
$where=~s/^\///;	$where=~s/^\///;
my ($cdom,$cnum,$csec)=split(/\//,$where);	my ($cdom,$cnum,$csec)=split(/\//,$where);
	if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
	my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
	my @ids = &Apache::lonnet::current_machine_ids();
	unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
	my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
	if ($curr_reqd_hash{'internal.releaserequired'} &&
	$curr_reqd_hash{'internal.releaserequired'} > $loncaparev) {
	my ($switchserver,$switchwarning) =
	&check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,$curr_reqd_hash{'internal.releaserequired'});
	&Apache::loncommon::content_type($r,'text/html');
	&Apache::loncommon::no_cache($r);
	$r->send_http_header;
	my $end_page=&Apache::loncommon::end_page();
	$r->print(&Apache::loncommon::start_page('Selected course unavailable on this server').
	'<p class="LC_warning">');
	if ($switchwarning) {
	$r->print($switchwarning.'<br /><a href="/adm/roles">');
	if (&Apache::loncommon::show_course()) {
	$r->print(&mt('Display courses'));
	} else {
	$r->print(&mt('Display roles'));
	}
	$r->print('</a>');
	} elsif ($switchserver) {
	$r->print(&mt('This course requires a newer version of LON-CAPA than is installed on this server.').
	'<br />'.
	'<a href="/adm/switchserver?'.$switchserver.'">'.
	&mt('Switch Server').
	'</a>');
	}
	$r->print('</p>'.&Apache::loncommon::end_page());
	return OK;
	}
	}
	}
# check for course groups	# check for course groups
my %coursegroups = &Apache::lonnet::get_active_groups(	my %coursegroups = &Apache::lonnet::get_active_groups(
$env{'user.domain'},$env{'user.name'},$cdom, $cnum);	$env{'user.domain'},$env{'user.name'},$cdom, $cnum);
Line 460 ENDENTERKEY	Line 494 ENDENTERKEY
if (($ferr) && ($tadv)) {	if (($ferr) && ($tadv)) {
&error_page($r,$ferr,$dest);	&error_page($r,$ferr,$dest);
} else {	} else {
	if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
	if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
	my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
	&update_content_constraints($cdom,$cnum,$chome,$cdom.'_'.$cnum);
	}
	}
$r->internal_redirect($dest);	$r->internal_redirect($dest);
}	}
return OK;	return OK;
Line 489 ENDENTERKEY	Line 529 ENDENTERKEY
}	}
$courseid =~ s/\//_/;	$courseid =~ s/\//_/;
if ((($role eq 'cc') \|\| ($role eq 'co'))	if ((($role eq 'cc') \|\| ($role eq 'co'))
&& ($env{'course.' . $courseid .'.course.helper.not.run'})) {	&& ($env{'course.' . $courseid .'.course.helper.not.run'})) {
$furl = "/adm/helper/course.initialization.helper";	$furl = "/adm/helper/course.initialization.helper";
# Send the user to the course they selected	# Send the user to the course they selected
} elsif ($env{'request.course.id'}) {	} elsif ($env{'request.course.id'}) {
Line 499 ENDENTERKEY	Line 539 ENDENTERKEY
my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');	my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
$dest .= '?symb='.$esc_symb;	$dest .= '?symb='.$esc_symb;
}	}
&redirect_user($r,&mt('Entering [_1]',	&redirect_user($r, &mt('Entering [_1]',
$env{'course.'.$courseid.'.description'}),	$env{'course.'.$courseid.'.description'}),
$dest,$msg,	$dest, $msg);
$env{'environment.remotenavmap'});
return OK;	return OK;
}	}
if (&Apache::lonnet::allowed('whn',	if (&Apache::lonnet::allowed('whn',
Line 515 ENDENTERKEY	Line 554 ENDENTERKEY
unless ($startpage eq 'firstres') {	unless ($startpage eq 'firstres') {
$msg = &mt('Entering [_1] ...',	$msg = &mt('Entering [_1] ...',
$env{'course.'.$courseid.'.description'});	$env{'course.'.$courseid.'.description'});
&redirect_user($r,&mt('New in course'),	&redirect_user($r, &mt('New in course'),
'/adm/whatsnew?refpage=start',$msg,	'/adm/whatsnew?refpage=start', $msg);
$env{'environment.remotenavmap'});
return OK;	return OK;
}	}
}	}
Line 529 ENDENTERKEY	Line 567 ENDENTERKEY
}	}
$msg = &mt('Entering [_1] ...',	$msg = &mt('Entering [_1] ...',
$env{'course.'.$courseid.'.description'});	$env{'course.'.$courseid.'.description'});
&redirect_user($r,&mt('Entering [_1]',	&redirect_user($r, &mt('Entering [_1]',
$env{'course.'.$courseid.'.description'}),	$env{'course.'.$courseid.'.description'}),
$furl,$msg,	$furl, $msg);
$env{'environment.remotenavmap'});
}	}
return OK;	return OK;
}	}
Line 696 ENDHEADER	Line 733 ENDHEADER
my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);	my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
my ($countactive,$countfuture,$inrole,$possiblerole) =	my ($countactive,$countfuture,$inrole,$possiblerole) =
&gather_roles($then,$refresh,$now,$reinit,$nochoose,\%roletext,\%sortrole,\%roleclass,	&gather_roles($then,$refresh,$now,$reinit,$nochoose,\%roletext,\%sortrole,\%roleclass,
\%futureroles,\%timezones);	\%futureroles,\%timezones,$loncaparev);

$refresh = $now;	$refresh = $now;
&Apache::lonnet::appenv({'user.refresh.time' => $refresh});	&Apache::lonnet::appenv({'user.refresh.time' => $refresh});
Line 711 ENDHEADER	Line 748 ENDHEADER
$r->print(&Apache::loncoursequeueadmin::queued_selfenrollment());	$r->print(&Apache::loncoursequeueadmin::queued_selfenrollment());
my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');	my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');	my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');

$r->print(	$r->print(
'<p>'	'<p>'
.&mt('[_1]Visit the [_2]Course/Community Catalog[_3]'	.&mt('[_1]Visit the [_2]Course/Community Catalog[_3]'
Line 736 ENDHEADER	Line 772 ENDHEADER
$r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');	$r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');
}	}
&findcourse_advice($r);	&findcourse_advice($r);
&requestcourse_advice($r);	&requestcourse_advice($r);
$r->print('</form>');	$r->print('</form>');
if ($countfuture) {	if ($countfuture) {
$r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));	$r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
Line 767 ENDHEADER	Line 803 ENDHEADER
return OK;	return OK;
}	}
# ----------------------------------------------------------------------- Table	# ----------------------------------------------------------------------- Table

if ($numdc > 0) {	if ($numdc > 0) {
$r->print(&coursepick_jscript());	$r->print(&coursepick_jscript());
$r->print(&Apache::loncommon::coursebrowser_javascript().	$r->print(&Apache::loncommon::coursebrowser_javascript().
Line 784 ENDHEADER	Line 821 ENDHEADER
$env{'form.destsymb'}.'" />');	$env{'form.destsymb'}.'" />');
}	}
}	}

my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);	my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
if ($env{'environment.recentroles'}) {	if ($env{'environment.recentroles'}) {
my %recent_roles =	my %recent_roles =
Line 877 ENDHEADER	Line 915 ENDHEADER
}	}

sub gather_roles {	sub gather_roles {
my ($then,$refresh,$now,$reinit,$nochoose,$roletext,$sortrole,$roleclass,$futureroles,$timezones) = @_;	my ($then,$refresh,$now,$reinit,$nochoose,$roletext,$sortrole,$roleclass,$futureroles,$timezones,$loncaparev) = @_;
my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');	my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
my $advanced = $env{'user.adv'};	my $advanced = $env{'user.adv'};
my $tryagain = $env{'form.tryagain'};	my $tryagain = $env{'form.tryagain'};
	my @ids = &Apache::lonnet::current_machine_ids();
foreach my $envkey (sort(keys(%env))) {	foreach my $envkey (sort(keys(%env))) {
my $button = 1;	my $button = 1;
my $switchserver='';	my $switchserver='';
	my $switchwarning;
my ($role_text,$role_text_end,$sortkey);	my ($role_text,$role_text_end,$sortkey);
if ($envkey=~/^user\.role\./) {	if ($envkey=~/^user\.role\./) {
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);	my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
Line 944 sub gather_roles {	Line 984 sub gather_roles {
if (($role eq 'ca') \|\| ($role eq 'aa')) {	if (($role eq 'ca') \|\| ($role eq 'aa')) {
my $home = &Apache::lonnet::homeserver($trest,$tdom);	my $home = &Apache::lonnet::homeserver($trest,$tdom);
my $allowed=0;	my $allowed=0;
my @ids=&Apache::lonnet::current_machine_ids();
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }	foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
if (!$allowed) {	if (!$allowed) {
$button=0;	$button=0;
Line 964 sub gather_roles {	Line 1003 sub gather_roles {
my $home = &Apache::lonnet::homeserver	my $home = &Apache::lonnet::homeserver
($env{'user.name'},$env{'user.domain'});	($env{'user.name'},$env{'user.domain'});
my $allowed=0;	my $allowed=0;
my @ids=&Apache::lonnet::current_machine_ids();
foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }	foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
if (!$allowed) {	if (!$allowed) {
$button=0;	$button=0;
Line 983 sub gather_roles {	Line 1021 sub gather_roles {
$ttype = &Apache::loncommon::course_type($tcourseid);	$ttype = &Apache::loncommon::course_type($tcourseid);
$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);	$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
if ($env{'course.'.$tcourseid.'.description'}) {	if ($env{'course.'.$tcourseid.'.description'}) {
	my $home=$env{'course.'.$tcourseid.'.home'};
$twhere=$env{'course.'.$tcourseid.'.description'};	$twhere=$env{'course.'.$tcourseid.'.description'};
$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;	$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
$twhere = &HTML::Entities::encode($twhere,'"<>&');	$twhere = &HTML::Entities::encode($twhere,'"<>&');
Line 990 sub gather_roles {	Line 1029 sub gather_roles {
$twhere.=' <span class="LC_fontsize_small">'.	$twhere.=' <span class="LC_fontsize_small">'.
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).	&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
'</span>';	'</span>';
	unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
	my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
	($switchserver,$switchwarning) =
	&check_release_required($loncaparev,$tcourseid,$trolecode,$required);
	if ($switchserver \|\| $switchwarning) {
	$button = 0;
	}
	}
}	}
} else {	} else {
my %newhash=&Apache::lonnet::coursedescription($tcourseid);	my %newhash=&Apache::lonnet::coursedescription($tcourseid);
Line 997 sub gather_roles {	Line 1044 sub gather_roles {
$sortkey=$role."\0".$tdom."\0".$newhash{'description'}.	$sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
"\0".$envkey;	"\0".$envkey;
$twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').	$twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
' <span class="LC_fontsize_small">'.	' <span class="LC_fontsize_small">'.
&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).	&Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
'</span>';	'</span>';
$ttype = $newhash{'type'};	$ttype = $newhash{'type'};
$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);	$trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
	my $home = $newhash{'home'};
	unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
	my $required = $newhash{'internal.releaserequired'};
	($switchserver,$switchwarning) =
	&check_release_required($loncaparev,$tcourseid,$trolecode,$required);
	if ($switchserver \|\| $switchwarning) {
	$button = 0;
	}
	}
} else {	} else {
$twhere=&mt('Currently not available');	$twhere=&mt('Currently not available');
$env{'course.'.$tcourseid.'.description'}=$twhere;	$env{'course.'.$tcourseid.'.description'}=$twhere;
Line 1025 sub gather_roles {	Line 1081 sub gather_roles {
($role_text,$role_text_end) =	($role_text,$role_text_end) =
&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,	&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,	$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
$tpend,$nochoose,$button,$switchserver,$reinit);	$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning);
$roletext->{$envkey}=[$role_text,$role_text_end];	$roletext->{$envkey}=[$role_text,$role_text_end];
if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}	if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
$sortrole->{$sortkey}=$envkey;	$sortrole->{$sortkey}=$envkey;
Line 1196 sub requestcourse_advice {	Line 1252 sub requestcourse_advice {
&Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);	&Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
if (keys(%request_doms) > 0) {	if (keys(%request_doms) > 0) {
my ($types,$typename) = &Apache::loncommon::course_types();	my ($types,$typename) = &Apache::loncommon::course_types();
if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {	if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
$r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.	$r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
'<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');	'<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');
my (@reqdoms,@reqtypes);	my (@reqdoms,@reqtypes);
foreach my $type (sort(keys(%request_doms))) {	foreach my $type (sort(keys(%request_doms))) {
push(@reqtypes,$type);	push(@reqtypes,$type);
if (ref($request_doms{$type}) eq 'ARRAY') {	if (ref($request_doms{$type}) eq 'ARRAY') {
my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));	my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
$r->print(	$r->print(
Line 1234 sub requestcourse_advice {	Line 1290 sub requestcourse_advice {
}	}
if (@reqdoms == 1 \|\| @showtypes > 0) {	if (@reqdoms == 1 \|\| @showtypes > 0) {
$requrl .= '&state=crstype&action=new';	$requrl .= '&state=crstype&action=new';
}	}
$r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');	$r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');
}	}
}	}
Line 1297 sub privileges_info {	Line 1353 sub privileges_info {
}	}

sub build_roletext {	sub build_roletext {
my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit) = @_;	my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_;
my ($roletext,$roletext_end);	my ($roletext,$roletext_end);
my $is_dc=($trolecode =~ m/^dc\./);	my $is_dc=($trolecode =~ m/^dc\./);
my $rowspan=($is_dc) ? ''	my $rowspan=($is_dc) ? ''
Line 1315 sub build_roletext {	Line 1371 sub build_roletext {
} else {	} else {
$roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');	$roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
}	}
	if ($switchwarning) {
	if ($tremark eq '') {
	$tremark = $switchwarning;
	} else {
	$tremark .= '<br />'.$switchwarning;
	}
	}
} elsif ($tstatus eq 'is') {	} elsif ($tstatus eq 'is') {
$roletext.='<td'.$rowspan.' class="'.$tbg.'">'.	$roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
'<input name="'.$buttonname.'" type="button" value="'.	'<input name="'.$buttonname.'" type="button" value="'.
Line 1495 sub check_forcc {	Line 1558 sub check_forcc {
return $is_cc;	return $is_cc;
}	}

	sub check_release_required {
	my ($loncaparev,$tcourseid,$trolecode,$required) = @_;
	my ($switchserver,$warning);
	if ($required ne '') {
	my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
	my ($major,$minor) = ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\d.\-]+\'?$/);
	if ($reqdmajor ne '' && $reqdminor ne '') {
	my $otherserver;
	if (($major eq '' && $minor eq '') \|\|
	(($reqdmajor > $major) \|\| (($reqdmajor == $major) && ($reqdminor > $minor)))) {
	my ($userdomserver) = &Apache::lonnet::choose_server($env{'user.domain'});
	my $switchlcrev =
	&Apache::lonnet::get_server_loncaparev($env{'user.domain'},
	$userdomserver);
	my ($swmajor,$swminor) = ($switchlcrev =~ /^\'?(\d+)\.(\d+)\.[\d.\-]+\'?$/);
	if (($swmajor eq '' && $swminor eq '') \|\| ($reqdmajor > $swmajor) \|\|
	(($reqdmajor == $swmajor) && ($reqdminor > $swminor))) {
	my $cdom = $env{'course.'.$tcourseid.'.domain'};
	if ($cdom ne $env{'user.domain'}) {
	my ($coursedomserver,$coursehostname) = &Apache::lonnet::choose_server($cdom);
	my $serverhomeID = &Apache::lonnet::get_server_homeID($coursehostname);
	my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
	my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
	my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'});
	my $remoterev = &Apache::lonnet::get_server_loncaparev($serverhomedom,$coursedomserver);
	my $canhost =
	&Apache::lonnet::can_host_session($env{'user.domain'},
	$coursedomserver,
	$remoterev,
	$udomdefaults{'remotesessions'},
	$defdomdefaults{'hostedsessions'});

	if ($canhost) {
	$otherserver = $coursedomserver;
	} else {
	$warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'. &mt("No suitable server could be found amongst servers in either your own domain or in the course's domain.");
	}
	} else {
	$warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'.&mt("No suitable server could be found amongst servers in your own domain (which is also the course's domain).");
	}
	} else {
	$otherserver = $userdomserver;
	}
	}
	if ($otherserver ne '') {
	$switchserver = 'otherserver='.$otherserver.'&role='.$trolecode;
	}
	}
	}
	return ($switchserver,$warning);
	}

	sub update_content_constraints {
	my ($cdom,$cnum,$chome,$cid) = @_;
	my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
	my ($reqdmajor,$reqdminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
	my %checkresponsetypes;
	foreach my $key (keys(%Apache::lonnet::needsrelease)) {
	my ($item,$name,$value) = split(/:/,$key);
	if ($item eq 'resourcetag') {
	if ($name eq 'responsetype') {
	$checkresponsetypes{$value} = $Apache::lonnet::needsrelease{$key}
	}
	}
	}
	my $navmap = Apache::lonnavmaps::navmap->new();
	if (defined($navmap)) {
	my %allresponses;
	foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) {
	my %responses = $res->responseTypes();
	foreach my $key (keys(%responses)) {
	next unless(exists($checkresponsetypes{$key}));
	$allresponses{$key} += $responses{$key};
	}
	}
	foreach my $key (keys(%allresponses)) {
	my ($major,$minor) = split(/\./,$checkresponsetypes{$key});
	if (($major > $reqdmajor) \|\| ($major == $reqdmajor && $minor > $reqdminor)) {
	($reqdmajor,$reqdminor) = ($major,$minor);
	}
	}
	undef($navmap);
	}
	unless (($reqdmajor eq '') && ($reqdminor eq '')) {
	&Apache::lonnet::update_released_required($reqdmajor.'.'.$reqdminor,$cdom,$cnum,$chome,$cid);
	}
	return;
	}

sub courselink {	sub courselink {
my ($dcdom,$rowtype) = @_;	my ($dcdom,$rowtype) = @_;
my $courseform=&Apache::loncommon::selectcourse_link	my $courseform=&Apache::loncommon::selectcourse_link
Line 1584 sub display_cc_role {	Line 1736 sub display_cc_role {
$env{'course.'.$tcourseid.'.description'}=$twhere;	$env{'course.'.$tcourseid.'.description'}=$twhere;
}	}
my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);	my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
$twhere.="<br />".&mt('Domain').":".$tdom;	$twhere.="<br />".&mt('Domain').":".$1;
($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');	($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
}	}
}	}
Line 1661 course they should act on, etc. Both in	Line 1813 course they should act on, etc. Both in
handler determines via C<lonnet>'s C<&allowed> function that a certain	handler determines via C<lonnet>'s C<&allowed> function that a certain
action is not allowed, C<lonroles> is used as error handler. This	action is not allowed, C<lonroles> is used as error handler. This
allows the user to select another role which may have permission to do	allows the user to select another role which may have permission to do
what they were trying to do. C<lonroles> can also be accessed via the	what they were trying to do.
B<CRS> button in the Remote Control.

=begin latex	=begin latex

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

Removed from v.1.231.4.15
changed lines
	Added in v.1.255