--- rat/lonpageflip.pm 2017/11/16 13:42:01 1.97
+++ rat/lonpageflip.pm 2021/08/21 03:42:02 1.110
@@ -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 1.110 2021/08/21 03:42:02 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -99,9 +99,14 @@ sub hash_src {
}
sub move {
- my ($next,$endupmap,$direction) = @_;
+ my ($next,$endupmap,$direction,$firstres) = @_;
my $safecount=0;
my $allowed=0;
+ my $deeplinkonly=0;
+ my $deeplinkchecked;
+ my $deeplink_login_pc;
+ my $prev=$next;
+ my ($prevmapid)=split(/\./,$next);
do {
($next,$endupmap)=&get_next_possible_move($next,$endupmap,$direction);
@@ -112,17 +117,93 @@ sub move {
if ($url eq '' || $symb eq '') {
$allowed = 0;
} else {
- my $priv = &Apache::lonnet::allowed('bre',$url,$symb);
- $allowed = (($priv eq 'F') || ($priv eq '2'));
+ my $nodeeplinkcheck = 0;
+ if ($hash{'is_map_'.$next}) {
+ $nodeeplinkcheck = 1;
+ }
+ my $priv = &Apache::lonnet::allowed('bre',$url,$symb,'','','','',$nodeeplinkcheck);
+ $allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A'));
}
+ $deeplinkonly = 0;
+ if ($hash{'deeplinkonly_'.$next}) {
+ my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$next});
+ my ($state,$others,$listed,$scope,$protect) = split(/,/,$value);
+ unless (($state eq 'both') || ($hash{'is_map_'.$next})) {
+ if ($level eq 'resource') {
+ $deeplinkonly = 1;
+ } elsif ($level eq 'map') {
+ if ($scope eq 'rec') {
+ unless ($mapid == $prevmapid) {
+ unless ($deeplinkchecked) {
+ $deeplink_login_pc = &get_deeplink_login_pc();
+ $deeplinkchecked = 1;
+ }
+ if ($deeplink_login_pc) {
+ my $poss_map_pc;
+ if ($hash{'is_map_'.$next}) {
+ $poss_map_pc = $hash{'map_pc_'.$url};
+ } else {
+ $poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}};
+ }
+ unless ($deeplink_login_pc == $poss_map_pc) {
+ unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) {
+ $deeplinkonly = 1;
+ }
+ }
+ } else {
+ $deeplinkonly = 1;
+ }
+ }
+ } elsif ($mapid != $prevmapid) {
+ $deeplinkonly = 1;
+ }
+ }
+ }
+ } elsif (($hash{'deeplinkonly_'.$prev}) && (!$firstres)) {
+ my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$prev});
+ my ($state,$others,$listed,$scope,$protect) = split(/,/,$value);
+ unless (($state eq 'both') || ($hash{'is_map_'.$prev})) {
+ if ($level eq 'resource') {
+ $deeplinkonly = 1;
+ } elsif ($level eq 'map') {
+ if ($scope eq 'rec') {
+ unless ($mapid == $prevmapid) {
+ unless ($deeplinkchecked) {
+ $deeplink_login_pc = &get_deeplink_login_pc();
+ $deeplinkchecked = 1;
+ }
+ if ($deeplink_login_pc) {
+ my $poss_map_pc;
+ if ($hash{'is_map_'.$prev}) {
+ $poss_map_pc = $hash{'map_pc_'.$url};
+ } else {
+ $poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}};
+ }
+ unless ($deeplink_login_pc == $poss_map_pc) {
+ unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) {
+ $deeplinkonly = 1;
+ }
+ }
+ }
+ }
+ } else {
+ if ($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)
+ || ($hash{'deeplinkout_'.$next}))
)
|| (!$allowed)
)
@@ -157,7 +238,7 @@ sub get_next_possible_move {
}
if ($thiscond>$mincond) { $mincond=$thiscond; }
}
- }
+ }
foreach my $id (split(/\,/,$posnext)) {
my ($linkid,$condval)=split(/\:/,$id);
if ($condval>=$mincond) {
@@ -199,7 +280,7 @@ sub get_next_possible_move {
}
if ($thiscond>$mincond) { $mincond=$thiscond; }
}
- }
+ }
foreach my $id (split(/\,/,$posnext)) {
my ($linkid,$condval)=split(/\:/,$id);
if ($condval>=$mincond) {
@@ -232,22 +313,32 @@ sub first_accessible_resource {
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640)) {
$furl=$hash{'first_url'};
- my %args;
- my ($url,$args) = split(/\?/,$furl);
- foreach my $pair (split(/\&/,$args)) {
+ my (%args,$url,$argstr);
+ if ($furl =~ m{^/enc/}) {
+ ($url,$argstr) = split(/\?/,&Apache::lonenc::unencrypted($furl));
+ } else {
+ ($url,$argstr) = split(/\?/,$furl);
+ }
+ foreach my $pair (split(/\&/,$argstr)) {
my ($name,$value) = split(/=/,$pair);
$args{&unescape($name)} = &unescape($value);
}
- if (!&Apache::lonnet::allowed('bre',$url,$args{'symb'})) {
+ my $priv = &Apache::lonnet::allowed('bre',$url,$args{'symb'});
+ my $allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A'));
+ if (!$allowed) {
# Wow, we cannot see this ... move forward to the next one that we can see
- my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward');
+ my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward',1);
# Build the new URL
- my ($newmapid,$newresid)=split(/\./,$newrid);
- my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid});
- $furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb });
- if ($hash{'encrypted_'.$newrid}) {
- $furl=&Apache::lonenc::encrypted($furl);
- }
+ if ($newrid eq '') {
+ $furl = '/adm/navmaps';
+ } else {
+ my ($newmapid,$newresid)=split(/\./,$newrid);
+ my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid});
+ $furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb });
+ if ($hash{'encrypted_'.$newrid}) {
+ $furl=&Apache::lonenc::encrypted($furl);
+ }
+ }
}
untie(%hash);
return $furl;
@@ -280,7 +371,7 @@ sub first_answerable_ressymb {
}
sub check_http_req {
- my ($srcref) = @_;
+ my ($srcref,$hostname) = @_;
return unless (ref($srcref) eq 'SCALAR');
my $usehttp;
if ($env{'request.course.id'}) {
@@ -289,11 +380,19 @@ 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;
@@ -321,6 +420,25 @@ setTimeout(function() {
END
}
+sub get_deeplink_login_pc {
+ my $deeplink_login_pc;
+ if (($env{'request.deeplink.login'}) && ($env{'request.course.id'})) {
+ my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+ my $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
+ if ($deeplink_symb) {
+ my $loginmap;
+ if ($deeplink_symb =~ /\.(page|sequence)$/) {
+ $loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
+ } else {
+ $loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
+ }
+ $deeplink_login_pc = $hash{'map_pc_'.$loginmap};
+ }
+ }
+ return $deeplink_login_pc;
+}
+
# ================================================================ Main Handler
sub handler {
@@ -338,7 +456,7 @@ 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 = $r->hostname();
my @possibilities=();
@@ -360,7 +478,7 @@ sub handler {
}
} elsif ($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 +519,12 @@ 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 = $r->uri;
@@ -425,7 +543,7 @@ sub handler {
}
if ($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.$furl;
} else {
@@ -442,7 +560,7 @@ sub handler {
return REDIRECT;
}
}
- if ($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 +569,15 @@ 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 +613,6 @@ 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 +685,15 @@ sub handler {
} else {
# -------------------------------------------------------------- No place to go
$multichoice=-1;
+ if ($position && $env{'request.deeplink.login'}) {
+ my ($map,$resid,$url) = &Apache::lonnet::decode_symb($position);
+ my $mapid = $hash{'map_pc_'.&Apache::lonnet::clutter($map)};
+ my $position_deeplink = $hash{'deeplinkonly_'.$mapid.'.'.$resid};
+ if ($position_deeplink) {
+ (my $value,$deeplinklevel) = map { &unescape($_); }
+ split(/:/,$position_deeplink);
+ }
+ }
}
# ----------------- The program must come past this point to untie the big hash
untie(%hash);
@@ -587,7 +717,7 @@ 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.$redirecturl;
} else {
@@ -618,6 +748,11 @@ sub handler {
&Apache::loncommon::content_type($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 +784,7 @@ $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 +820,29 @@ 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'}.''