--- loncom/auth/lonroles.pm 2015/04/20 12:11:02 1.269.2.23 +++ loncom/auth/lonroles.pm 2021/04/19 20:09:07 1.346 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # User Roles Screen # -# $Id: lonroles.pm,v 1.269.2.23 2015/04/20 12:11:02 raeburn Exp $ +# $Id: lonroles.pm,v 1.346 2021/04/19 20:09:07 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -140,10 +140,13 @@ use Apache::lonnavdisplay(); use Apache::loncoursequeueadmin; use Apache::longroup; use Apache::lonrss; +use Apache::lonplacementtest; use GDBM_File; use LONCAPA qw(:DEFAULT :match); use HTML::Entities; - + +my $registered_cleanup; +my $rosterupdates; sub redirect_user { my ($r,$title,$url,$msg) = @_; @@ -151,27 +154,27 @@ sub redirect_user { &Apache::loncommon::content_type($r,'text/html'); &Apache::loncommon::no_cache($r); $r->send_http_header; - my $swinfo=&Apache::lonmenu::rawconfig(); - # Breadcrumbs - my $brcrum = [{'href' => $url, - 'text' => 'Switching Role'},]; - my $start_page = &Apache::loncommon::start_page('Switching Role',undef, - {'redirect' => [1,$url], - 'bread_crumbs' => $brcrum,}); - my $end_page = &Apache::loncommon::end_page(); + my $start_page; + if ($env{'request.lti.login'}) { + $start_page = &Apache::loncommon::start_page(undef,undef, + {'redirect' => [0,$url],}).$msg; + } else { + # Breadcrumbs + my $brcrum = [{'href' => $url, + 'text' => 'Switching Role'},]; + $start_page = &Apache::loncommon::start_page('Switching Role',undef, + {'redirect' => [1,$url], + 'bread_crumbs' => $brcrum,}). + "\n
$msg
"; + } + my $end_page = &Apache::loncommon::end_page(); # Note to style police: # This must only replace the spaces, nothing else, or it bombs elsewhere. $url=~s/ /\%20/g; $r->print(<$msg
$end_page ENDREDIR return; @@ -209,7 +212,7 @@ sub handler { my $r = shift; # Check for critical messages and redirect if present. - my ($redirect,$url) = &Apache::loncommon::critical_redirect(300); + my ($redirect,$url) = &Apache::loncommon::critical_redirect(300,'roles'); if ($redirect) { &Apache::loncommon::content_type($r,'text/html'); $r->header_out(Location => $url); @@ -227,9 +230,11 @@ sub handler { $update = $then; } + $registered_cleanup=0; + @{$rosterupdates}=(); &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}); -# -------------------------------------------------- Check if setting hot list +# -------------------------------------------------- Check if setting hot list my $hotlist; if ($env{'form.action'} eq 'verify_and_change_rolespref') { $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r); @@ -260,17 +265,32 @@ sub handler { my $envkey; my %dcroles = (); - my $numdc = &check_fordc(\%dcroles,$update,$then); + my %helpdeskroles = (); + my ($numdc,$numhelpdesk,$numadhoc) = + &check_for_adhoc(\%dcroles,\%helpdeskroles,$update,$then); my $loncaparev = $r->dir_config('lonVersion'); # ================================================================== Roles Init if ($env{'form.selectrole'}) { + if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq '')) { + if ($env{'form.ltitarget'} eq 'iframe') { + &Apache::lonnet::appenv({'request.lti.target' => 'iframe'}); + delete($env{'form.ltitarget'}); + } + } my $locknum=&Apache::lonnet::get_locks(); if ($locknum) { return 409; } + my $custom_adhoc; if ($env{'form.newrole'}) { $env{'form.'.$env{'form.newrole'}}=1; +# Check if this is a Domain Helpdesk or Domain Helpdesk Assistant role trying to enter a course + if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) { + if ($helpdeskroles{$1}) { + $custom_adhoc = 1; + } + } } if ($env{'request.course.id'}) { # Check if user is CC trying to select a course role @@ -301,78 +321,122 @@ sub handler { "request.role" => 'cm', "request.role.adv" => $env{'user.adv'}, "request.role.domain" => $env{'user.domain'}}); -# Check if user is a DC trying to enter a course or author space and needs privs to be created - if ($numdc > 0) { - foreach my $envkey (keys(%env)) { -# Is this an ad-hoc Coordinator role? - if (my ($ccrole,$domain,$coursenum) = - ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) { - if ($dcroles{$domain}) { - if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum, - $update,$refresh,$now,$ccrole)) { - &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time}); +# Check if Domain Helpdesk role trying to enter a course needs privs to be created + if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)}) { + my $cdom = $1; + my $rolename = $2; + my $cnum = $3; + my $sec = $4; + if ($custom_adhoc) { + my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($cdom.'_'.$cnum,1); + if (ref($possroles) eq 'ARRAY') { + if (grep(/^\Q$rolename\E$/,@{$possroles})) { + if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now, + "cr/$cdom/$cdom".'-domainconfig/'.$rolename,undef,$sec)) { + &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time}); } } - last; } -# Is this an ad-hoc CA-role? - if (my ($domain,$user) = - ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) { - if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) { - delete($env{$envkey}); - $env{'form.au./'.$domain.'/'} = 1; - my ($server_status,$home) = &check_author_homeserver($user,$domain); - if ($server_status eq 'switchserver') { - my $trolecode = 'au./'.$domain.'/'; - my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode; - $r->internal_redirect($switchserver); - return OK; + } + } elsif (($numdc > 0) || ($numhelpdesk > 0)) { +# Check if user is a DC trying to enter a course or author space and needs privs to be created +# Check if user is a DH or DA trying to enter a course and needs privs to be created + foreach my $envkey (keys(%env)) { +# Is this an ad-hoc Coordinator role? + if ($numdc) { + if (my ($ccrole,$domain,$coursenum) = + ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) { + if ($dcroles{$domain}) { + if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum, + $update,$refresh,$now,$ccrole)) { + &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time}); + } } last; } - if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) { - if (((($castart) && ($castart < $now)) || !$castart) && - ((!$caend) || (($caend) && ($caend > $now)))) { +# Is this an ad-hoc CA-role? + if (my ($domain,$user) = + ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) { + if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) { + delete($env{$envkey}); + $env{'form.au./'.$domain.'/'} = 1; my ($server_status,$home) = &check_author_homeserver($user,$domain); if ($server_status eq 'switchserver') { - my $trolecode = 'ca./'.$domain.'/'.$user; + my $trolecode = 'au./'.$domain.'/'; my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode; $r->internal_redirect($switchserver); return OK; } last; } - } - # Check if author blocked ca-access - my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user); - if ($blocked{'domcoord.author'} eq 'blocked') { - delete($env{$envkey}); - $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access'; + if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) { + if (((($castart) && ($castart < $now)) || !$castart) && + ((!$caend) || (($caend) && ($caend > $now)))) { + my ($server_status,$home) = &check_author_homeserver($user,$domain); + if ($server_status eq 'switchserver') { + my $trolecode = 'ca./'.$domain.'/'.$user; + my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode; + $r->internal_redirect($switchserver); + return OK; + } + last; + } + } + # Check if author blocked ca-access + my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user); + if ($blocked{'domcoord.author'} eq 'blocked') { + delete($env{$envkey}); + $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access'; + last; + } + if ($dcroles{$domain}) { + my ($server_status,$home) = &check_author_homeserver($user,$domain); + if (($server_status eq 'ok') || ($server_status eq 'switchserver')) { + &Apache::lonnet::check_adhoc_privs($domain,$user,$update, + $refresh,$now,'ca'); + if ($server_status eq 'switchserver') { + my $trolecode = 'ca./'.$domain.'/'.$user; + my $switchserver = '/adm/switchserver?' + .'otherserver='.$home.'&role='.$trolecode; + $r->internal_redirect($switchserver); + return OK; + } + } else { + delete($env{$envkey}); + } + } else { + delete($env{$envkey}); + } last; } - if ($dcroles{$domain}) { - my ($server_status,$home) = &check_author_homeserver($user,$domain); - if (($server_status eq 'ok') || ($server_status eq 'switchserver')) { - &Apache::lonnet::check_adhoc_privs($domain,$user,$update, - $refresh,$now,'ca'); - if ($server_status eq 'switchserver') { - my $trolecode = 'ca./'.$domain.'/'.$user; - my $switchserver = '/adm/switchserver?' - .'otherserver='.$home.'&role='.$trolecode; - $r->internal_redirect($switchserver); - return OK; + } + if ($numhelpdesk) { +# Is this an ad hoc custom role in a course/community? + if (my ($domain,$rolename,$coursenum,$sec) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)})) { + if ($helpdeskroles{$domain}) { + my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($domain.'_'.$coursenum,1); + if (ref($possroles) eq 'ARRAY') { + if (grep(/^\Q$rolename\E$/,@{$possroles})) { + if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now, + "cr/$domain/$domain".'-domainconfig/'.$rolename, + undef,$sec)) { + &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain". + '-domainconfig/'."$rolename.adhoc" => time}); + } + } else { + delete($env{$envkey}); + } + } else { + delete($env{$envkey}); } } else { delete($env{$envkey}); } - } else { - delete($env{$envkey}); + last; } - last; } } } - foreach $envkey (keys(%env)) { next if ($envkey!~/^user\.role\./); my ($where,$trolecode,$role,$tstatus,$tend,$tstart); @@ -441,6 +505,7 @@ sub handler { my $end_page=&Apache::loncommon::end_page(); my $buttontext=&mt('Enter Course'); my $message=&mt('Successfully registered key'); + my $ip = &Apache::lonnet::get_requestor_ip(); my $assignresult= &Apache::lonnet::assign_access_key( $env{'form.newkey'}, @@ -449,7 +514,7 @@ sub handler { $env{'user.domain'}, $env{'user.name'}, &mt('Assigned from [_1] at [_2] for [_3]' - ,$ENV{'REMOTE_ADDR'} + ,$ip ,&Apache::lonlocal::locallocaltime() ,$trolecode) ); @@ -508,7 +573,7 @@ ENDENTERKEY $env{'user.name'}, $env{'user.home'}, "Role ".$trolecode); - + &Apache::lonnet::appenv( {'request.role' => $trolecode, 'request.role.domain' => $cdom, @@ -517,16 +582,57 @@ ENDENTERKEY my $tadv=0; if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) { - my $msg; - my ($furl,$ferr)= - &Apache::lonuserstate::readmap($cdom.'/'.$cnum); + if ($role =~ m{^\Qcr/$cdom/$cdom\E\-domainconfig/(\w+)$}) { + my $rolename = $1; + my %domdef = &Apache::lonnet::get_domain_defaults($cdom); + if (ref($domdef{'adhocroles'}) eq 'HASH') { + if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') { + &Apache::lonnet::appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'}}); + } + } + } + my ($msg,$blockcrit,$critmsg_check); + $critmsg_check = 1; + $blockcrit = &Apache::loncommon::blocking_status('alert',$cnum,$cdom,undef,1); + if ($blockcrit) { + my $checkrole = "cm./$cdom/$cnum"; + if ($csec ne '') { + $checkrole .= "/$csec"; + } + unless ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) && + ($trolecode !~ m{^st\./$cdom/$cnum})) { + $critmsg_check = 0; + } + } + my ($furl,$ferr)= + &Apache::lonuserstate::readmap($cdom.'/'.$cnum,$critmsg_check); unless ($ferr) { - unless (($env{'form.switchrole'}) || + &Apache::lonnet::appenv({'request.course.timechecked'=>$now}); + unless (($env{'form.switchrole'}) || ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) { &Apache::lonnet::put('nohist_crslastlogin', {$env{'user.name'}.':'.$env{'user.domain'}. ':'.$csec.':'.$role => $now},$cdom,$cnum); } + if (($env{"environment.internal.$cdom.$cnum.$role.adhoc"}) && + (&Apache::lonnet::allowed('vxc',$cdom.'_'.$cnum))) { + my $owner = $env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'}; + my @coowners = split(/,/,$env{'course.'.$env{'request.course.id'}.'.internal.co-owners'}); + my %auaccess; + foreach my $user ($owner,@coowners) { + my ($cpname,$cpdom) = split(/:/,$user); + my %auroles = &Apache::lonnet::get_my_roles($cpname,$cpdom,'userroles',undef,['au','ca','aa'],[$cdom]); + foreach my $key (keys(%auroles)) { + my ($auname,$audom,$aurole) = split(/:/,$key); + if ($aurole eq 'au') { + $auaccess{$cpname} = 1; + } else { + $auaccess{$auname} = 1; + } + } + } + &Apache::lonnet::appenv({'request.course.adhocsrcaccess' => join(',',sort(keys(%auaccess))) }); + } my ($feeds,$syllabus_time); &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds); &Apache::lonnet::appenv({'request.course.feeds' => $feeds}); @@ -544,7 +650,7 @@ ENDENTERKEY } if (($env{'form.orgurl'}) && ($env{'form.orgurl'}!~/^\/adm\/flip/) && - ($env{'form.orgurl'} ne '/adm/roles')) { + ($env{'form.orgurl'} ne '/adm/roles')) { my $dest=$env{'form.orgurl'}; if ($env{'form.symb'}) { if ($dest =~ /\?/) { @@ -559,6 +665,13 @@ ENDENTERKEY if (($ferr) && ($tadv)) { &error_page($r,$ferr,$dest); } else { + if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { + if (($env{'form.orgurl'} ne '') && ($env{'form.symb'} ne '')) { + unless (&Apache::lonnet::symbverify($env{'form.symb'},$env{'form.orgurl'}) { + $dest=$env{'form.orgurl'}; + } + } + } if ($dest =~ m{^/adm/coursedocs\?folderpath}) { if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { my $chome = &Apache::lonnet::homeserver($cnum,$cdom); @@ -566,6 +679,10 @@ ENDENTERKEY $cdom.'_'.$cnum); } } + if (($env{'request.lti.login'}) && + ($env{'request.lti.rosterid'} || $env{'request.lti.passbackid'})) { + &process_lti($r,$cdom,$cnum); + } $r->internal_redirect($dest); } return OK; @@ -587,6 +704,10 @@ ENDENTERKEY if (($ferr) && ($tadv)) { &error_page($r,$ferr,$furl); } else { + if (($env{'request.lti.login'}) && + ($env{'request.lti.rosterid'} || $env{'request.lti.passbackid'})) { + &process_lti($r,$cdom,$cnum); + } # Check to see if the user is a CC entering a course # for the first time if ((($role eq 'cc') || ($role eq 'co')) @@ -594,6 +715,17 @@ ENDENTERKEY $furl = "/adm/helper/course.initialization.helper"; # Send the user to the course they selected } elsif ($env{'request.course.id'}) { + if ((&Apache::loncommon::course_type() eq 'Placement') && + (!$env{'request.role.adv'})) { + my ($score,$incomplete) = + &Apache::lonplacementtest::check_completion(undef,undef,1); + if (($incomplete) && ($incomplete < 100)) { + &redirect_user($r, &mt('Entering [_1]', + $env{'course.'.$cdom.'_'.$cnum.'.description'}), + '/adm/placement', $msg); + return OK; + } + } my ($dest,$destsymb,$checkenc); $dest = $env{'form.destinationurl'}; $destsymb = $env{'form.destsymb'}; @@ -606,11 +738,22 @@ ENDENTERKEY } } } + if (($dest =~ m{^\Q/public/$cdom/$cnum/syllabus\E.*(\?|\&)usehttp=1}) || + ($dest =~ m{^\Q/adm/wrapper/ext/\E(?!https:)})) { + if ($ENV{'SERVER_PORT'} == 443) { + unless (&Apache::lonnet::uses_sts()) { + my $hostname = $r->hostname(); + if ($hostname ne '') { + $dest = 'http://'.$hostname.$dest; + } + } + } + } if ($dest =~ m{^/enc/}) { if ($env{'request.role.adv'}) { $dest = &Apache::lonenc::unencrypted($dest); if ($destsymb eq '') { - ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/); + ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/); $destsymb = &unescape($destsymb); } } @@ -635,15 +778,18 @@ ENDENTERKEY } } } - unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) { + unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) { if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) { my $esc_symb = &escape($destsymb); - $dest .= '?symb='.$esc_symb; + $dest .= (($dest =~/\?/)? '&':'?').'symb='.$esc_symb; } } - &redirect_user($r, &mt('Entering [_1]', - $env{'course.'.$cdom.'_'.$cnum.'.description'}), - $dest, $msg); + my $title; + unless ($env{'request.lti.login'}) { + $title = &mt('Entering [_1]', + $env{'course.'.$cdom.'_'.$cnum.'.description'}); + } + &redirect_user($r,$title,$dest,$msg); return OK; } if (&Apache::lonnet::allowed('whn', @@ -681,11 +827,16 @@ ENDENTERKEY } elsif ($access eq 'B') { $furl = '/adm/navmaps?showOnlyHomework=1'; } - $msg = &mt('Entering [_1] ...', - $env{'course.'.$cdom.'_'.$cnum.'.description'}); - &redirect_user($r, &mt('Entering [_1]', - $env{'course.'.$cdom.'_'.$cnum.'.description'}), - $furl, $msg); + my $title; + if ($env{'request.lti.login'}) { + undef($msg); + } else { + $title = &mt('Entering [_1]', + $env{'course.'.$cdom.'_'.$cnum.'.description'}); + $msg = &mt('Entering [_1] ...', + $env{'course.'.$cdom.'_'.$cnum.'.description'}); + } + &redirect_user($r,$title,$furl,$msg); } return OK; } @@ -710,6 +861,18 @@ ENDENTERKEY $redirect_url); return OK; } + if ($role eq 'dh') { + my $redirect_url = '/adm/menu/'; + &redirect_user($r,&mt('Loading Domain Helpdesk Menu'), + $redirect_url); + return OK; + } + if ($role eq 'da') { + my $redirect_url = '/adm/menu/'; + &redirect_user($r,&mt('Loading Domain Helpdesk Assistant Menu'), + $redirect_url); + return OK; + } if ($role eq 'sc') { my $redirect_url = '/adm/grades?command=scantronupload'; &redirect_user($r,&mt('Loading Data Upload Page'), @@ -738,7 +901,7 @@ ENDENTERKEY $crumbtext = 'Courses'; $pagetitle = 'My Courses'; $recent = &mt('Recent Courses'); - $standby = &mt('Course selected. Please stand by.'); + $standby = &mt('Course selected. Please stand by.'); } my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}]; @@ -746,14 +909,46 @@ ENDENTERKEY my $showcount = &roles_from_env(\%roles_in_env,$update); my $swinfo=&Apache::lonmenu::rawconfig(); - my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum}); my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'}); my $cattype = 'std'; if ($domdefs{'catauth'}) { $cattype = $domdefs{'catauth'}; } - my $funcs = &get_roles_functions($showcount,$cattype); - $standby=~s/\n/\\n/g; + my $placementonly; + if ($showcount == 1) { + if ($env{'request.course.id'}) { + if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') { + $placementonly = 1; + } + } else { + foreach my $rolecode (keys(%roles_in_env)) { + my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)}); + if ($cid) { + my %coursedescription = + &Apache::lonnet::coursedescription($cid,{'one_time' => '1'}); + if ($coursedescription{'type'} eq 'Placement') { + $placementonly = 1; + } + last; + } + } + } + } + my ($start_page,$funcs); + if ($placementonly) { + $start_page=&Apache::loncommon::start_page($pagetitle,undef, + {bread_crumbs=>$brcrum,crstype=>'Placement'}); + } else { + $funcs = &get_roles_functions($showcount,$cattype); + my $crumbsright; + if ($env{'browser.mobile'}) { + $crumbsright = $funcs; + undef($funcs); + } + $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum, + bread_crumbs_component=>$crumbsright}); + } + &js_escape(\$standby); my $noscript=''.&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
'.&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'
'); + if ($elapsed > 600) { + $r->print(''.&mt('You may also have been assigned to a course in the time since you last logged-in, or checked for changes').
+ '
'.
+ &mt('If that is the case you can use the "Check for changes" link in the gray Functions bar to update the list of your available course roles.').'