--- rat/lonpageflip.pm 2017/11/16 13:42:01 1.97 +++ rat/lonpageflip.pm 2021/04/29 17:45:25 1.103 @@ -2,7 +2,7 @@ # # Page flip handler # -# $Id: lonpageflip.pm,v 1.97 2017/11/16 13:42:01 raeburn Exp $ +# $Id: lonpageflip.pm,v 1.103 2021/04/29 17:45:25 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -102,6 +102,9 @@ sub move { my ($next,$endupmap,$direction) = @_; my $safecount=0; my $allowed=0; + my $deeplinkonly=0; + my $prev=$next; + my ($prevmapid)=split(/\./,$next); do { ($next,$endupmap)=&get_next_possible_move($next,$endupmap,$direction); @@ -115,14 +118,35 @@ sub move { my $priv = &Apache::lonnet::allowed('bre',$url,$symb); $allowed = (($priv eq 'F') || ($priv eq '2')); } + $deeplinkonly = 0; + if ($hash{'deeplinkonly_'.$next}) { + my ($value,$level) = split(/:/,$hash{'deeplinkonly_'.$next}); + if ($level eq 'resource') { + $deeplinkonly = 1; + } elsif ($level eq 'map') { + if ($mapid != $prevmapid) { + $deeplinkonly = 1; + } + } + } elsif ($hash{'deeplinkonly_'.$prev}) { + my ($value,$level) = split(/:/,$hash{'deeplinkonly_'.$prev}); + if ($level eq 'resource') { + $deeplinkonly = 1; + } elsif ($level eq 'map') { + if ($mapid != $prevmapid) { + $deeplinkonly = 1; + } + } + } $safecount++; } while ( ($next) && ($next!~/\,/) && ( (!$hash{'src_'.$next}) || ( - (!$env{'request.role.adv'}) - && $hash{'randomout_'.$next} + (!$env{'request.role.adv'}) + && (($hash{'randomout_'.$next}) + || ($deeplinkonly)) ) || (!$allowed) ) @@ -280,7 +304,7 @@ sub first_answerable_ressymb { } sub check_http_req { - my ($srcref) = @_; + my ($srcref,$hostname) = @_; return unless (ref($srcref) eq 'SCALAR'); my $usehttp; if ($env{'request.course.id'}) { @@ -289,11 +313,19 @@ sub check_http_req { if (($$srcref =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && ($ENV{'SERVER_PORT'} == 443) && ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) { - $$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1'; - $usehttp = 1; + unless ((&Apache::lonnet::uses_sts()) || + (&Apache::lonnet::waf_allssl($hostname))) { + $$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1'; + $usehttp = 1; + } } elsif (($$srcref =~ m{^\Q/adm/wrapper/ext/\E(?!https:)}) && ($ENV{'SERVER_PORT'} == 443)) { - $usehttp = 1; + unless ((&Apache::lonnet::uses_sts()) || + (&Apache::lonnet::waf_allssl($hostname))) { + my ($url,$anchor) = ($$srcref =~ /^([^\#]+)(?:|(\#[^\#]+))$/); + $$srcref = $url . (($$srcref =~/\?/)? '&':'?') . 'usehttp=1' .$anchor; + $usehttp = 1; + } } } return $usehttp; @@ -338,7 +370,7 @@ sub handler { my $multichoice=0; my %multichoicehash=(); my %prog_state=(); - my ($redirecturl,$redirectsymb,$enc,$anchor); + my ($redirecturl,$redirectsymb,$enc,$anchor,$deeplinklevel); my $next=''; my $hostname = $r->hostname(); my @possibilities=(); @@ -360,7 +392,7 @@ sub handler { } } elsif ($direction eq 'firstanswerable') { my $furl = &first_answerable_ressymb(); - my $usehttp = &check_http_req(\$furl); + my $usehttp = &check_http_req(\$furl,$hostname); if (($usehttp) && ($hostname ne '')) { $furl='http://'.$hostname.$furl; } else { @@ -401,12 +433,12 @@ sub handler { my $preamble = '
'. '
'. &mt('Your course session is being updated because of recent changes by course personnel.'). - ' '.&mt('Please be patient.').'
'. + ' '.&mt('Please be patient').'.
'. '
'; %prog_state = &Apache::lonhtmlcommon::Create_PrgWin($r,undef,$preamble); &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Updating course')); my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum"); - &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished')); + &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished!')); if ($ferr) { &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); my $requrl = $r->uri; @@ -425,7 +457,7 @@ sub handler { } if ($direction eq 'firstres') { my $furl=&first_accessible_resource(); - my $usehttp = &check_http_req(\$furl); + my $usehttp = &check_http_req(\$furl,$hostname); if (($usehttp) && ($hostname ne '')) { $furl='http://'.$hostname.$furl; } else { @@ -442,7 +474,7 @@ sub handler { return REDIRECT; } } - if ($direction eq 'return') { + if ($direction eq 'return') { # -------------------------------------------------------- Return to last known my ($newloc,$usehttp); if (($last) && (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', @@ -451,11 +483,15 @@ sub handler { $id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id; $newloc=$hash{'src_'.$id}; if ($newloc) { - $usehttp = &check_http_req(\$newloc); + $usehttp = &check_http_req(\$newloc,$hostname); if ($hash{'encrypted_'.$id}) { $newloc=&Apache::lonenc::encrypted($newloc); - } elsif ($newloc =~ m{^(/adm/wrapper/ext/[^\#]+)\#([^\#]+)$}) { - $newloc = $1.&escape('#').$2; + } + if ($newloc =~ m{^(/adm/wrapper/ext/[^\#]+)(?:|(\#[^\#]+))$}) { + my ($url,$anchor) = ($1,$2); + if ($anchor) { + $newloc = $url.(($url=~/\?/)?'&':'?').'symb='.&escape($last).$anchor; + } } } else { $newloc='/adm/navmaps'; @@ -491,7 +527,6 @@ sub handler { $last=$hash{'last_known'}; untie(%hash); } - my $newloc; if ($last) { $currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]); } else { @@ -564,6 +599,9 @@ sub handler { } else { # -------------------------------------------------------------- No place to go $multichoice=-1; + if ($hash{'deeplinkonly_'.$rid}) { + (my $value,$deeplinklevel) = split(/:/,$hash{'deeplinkonly_'.$rid}); + } } # ----------------- The program must come past this point to untie the big hash untie(%hash); @@ -587,7 +625,7 @@ sub handler { # ------------------------------------- Check for and display critical messages my ($redirect, $url) = &Apache::loncommon::critical_redirect(300,'flip'); unless ($redirect) { - my $usehttp = &check_http_req(\$redirecturl); + my $usehttp = &check_http_req(\$redirecturl,$hostname); if (($usehttp) && ($hostname ne '')) { $url='http://'.$hostname.$redirecturl; } else { @@ -618,6 +656,11 @@ sub handler { &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; my %lt=&Apache::lonlocal::texthash('title' => 'End of Sequence', + 'deeplink' => 'No link available', + 'deeplinkres' => + 'Navigation to other content is unavailable when accessing content via deep-linking', + 'deeplinkmap' => + 'You have reached the end of the sequence of available materials for access via deep-linking', 'explain' => 'You have reached the end of the sequence of materials.', 'back' => 'Go Back', @@ -649,7 +692,7 @@ $lt{'pick'}: ENDSTART foreach my $id (@possibilities) { my $src = $multichoicehash{'src_'.$id}; - my $usehttp = &check_http_req(\$src); + my $usehttp = &check_http_req(\$src,$hostname); if (($usehttp) && ($hostname ne '')) { $src = 'http://'.$hostname.$src; } @@ -685,17 +728,29 @@ ENDSTART } else { $r->print(&Apache::lonplacementtest::showresult(1)); } - } else { + } else { $r->print( - &Apache::loncommon::start_page('No Resource') - .'

'.$lt{'title'}.'

' - .'

'.$lt{'explain'}.'

'); + &Apache::loncommon::start_page('No Resource')); + if ($deeplinklevel eq 'resource') { + $r->print('

'.$lt{'deeplink'}.'

' + .'

'.$lt{'deeplinkres'}.'

'); + } elsif ($deeplinklevel eq 'map') { + $r->print('

'.$lt{'title'}.'

' + .'

'.$lt{'deeplinkmap'}.'

'); + } else { + $r->print('

'.$lt{'title'}.'

' + .'

'.$lt{'explain'}.'

'); + } } } } unless (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') || ($env{'request.role.adv'})) { - if ((!@possibilities) && ($reinitcheck)) { + if ($deeplinklevel) { + $r->print( + &Apache::lonhtmlcommon::actionbox( + [''.$lt{'back'}.''])); + } elsif ((!@possibilities) && ($reinitcheck)) { $r->print( &Apache::lonhtmlcommon::actionbox( [''.$lt{'nav'}.''