version 1.75.2.1, 2008/12/21 05:00:52
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version 1.113, 2022/10/19 18:09:03
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Line 27
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Line 27
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
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package Apache::lonpageflip; |
package Apache::lonpageflip; |
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use strict; |
use strict; |
Line 34 use LONCAPA;
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Line 36 use LONCAPA;
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use Apache::Constants qw(:common :http REDIRECT); |
use Apache::Constants qw(:common :http REDIRECT); |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::loncommon(); |
use Apache::loncommon(); |
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use Apache::lonnavmaps(); |
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use Apache::lonuserstate; |
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use Apache::lonlocal; |
use HTML::TokeParser; |
use HTML::TokeParser; |
use GDBM_File; |
use GDBM_File; |
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Line 79 sub hash_src {
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Line 84 sub hash_src {
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my ($mapid,$resid)=split(/\./,$id); |
my ($mapid,$resid)=split(/\./,$id); |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid}, |
$resid,$hash{'src_'.$id}); |
$resid,$hash{'src_'.$id}); |
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my $anchor; |
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if ($hash{'ext_'.$id} eq 'true:') { |
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if ($hash{'src_'.$id} =~ /(\#.+)$/) { |
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$anchor = $1; |
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} |
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} |
if ($hash{'encrypted_'.$id}) { |
if ($hash{'encrypted_'.$id}) { |
return (&Apache::lonenc::encrypted($hash{'src_'.$id}), |
return (&Apache::lonenc::encrypted($hash{'src_'.$id}), |
&Apache::lonenc::encrypted($symb)); |
&Apache::lonenc::encrypted($symb), |
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$hash{'encrypted_'.$id},$anchor); |
} |
} |
return ($hash{'src_'.$id},$symb); |
return ($hash{'src_'.$id},$symb,$hash{'encrypted_'.$id},$anchor); |
} |
} |
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sub move { |
sub move { |
my ($next,$endupmap,$direction) = @_; |
my ($next,$endupmap,$direction,$firstres) = @_; |
my $safecount=0; |
my $safecount=0; |
my $allowed=0; |
my $allowed=0; |
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my $deeplinkonly=0; |
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my $deeplinkchecked; |
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my $deeplink_login_pc; |
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my $prev=$next; |
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my ($prevmapid)=split(/\./,$next); |
do { |
do { |
($next,$endupmap)=&get_next_possible_move($next,$endupmap,$direction); |
($next,$endupmap)=&get_next_possible_move($next,$endupmap,$direction); |
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Line 100 sub move {
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Line 117 sub move {
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if ($url eq '' || $symb eq '') { |
if ($url eq '' || $symb eq '') { |
$allowed = 0; |
$allowed = 0; |
} else { |
} else { |
my $priv = &Apache::lonnet::allowed('bre',$url,$symb); |
my $nodeeplinkcheck = 0; |
$allowed = (($priv eq 'F') || ($priv eq '2')); |
if ($hash{'is_map_'.$next}) { |
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$nodeeplinkcheck = 1; |
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} |
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my $priv = &Apache::lonnet::allowed('bre',$url,$symb,'','','','',$nodeeplinkcheck); |
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$allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A')); |
} |
} |
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$deeplinkonly = 0; |
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if ($hash{'deeplinkonly_'.$next}) { |
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my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$next}); |
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my ($state,$others,$listed,$scope,$protect) = split(/,/,$value); |
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unless (($state eq 'both') || ($hash{'is_map_'.$next})) { |
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if ($level eq 'resource') { |
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$deeplinkonly = 1; |
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} elsif ($level eq 'map') { |
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if ($scope eq 'rec') { |
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unless ($mapid == $prevmapid) { |
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unless ($deeplinkchecked) { |
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$deeplink_login_pc = &get_deeplink_login_pc(); |
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$deeplinkchecked = 1; |
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} |
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if ($deeplink_login_pc) { |
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my $poss_map_pc; |
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if ($hash{'is_map_'.$next}) { |
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$poss_map_pc = $hash{'map_pc_'.$url}; |
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} else { |
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$poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}}; |
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} |
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unless ($deeplink_login_pc == $poss_map_pc) { |
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unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) { |
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$deeplinkonly = 1; |
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} |
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} |
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} else { |
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$deeplinkonly = 1; |
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} |
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} |
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} elsif ($mapid != $prevmapid) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} elsif (($hash{'deeplinkonly_'.$prev}) && (!$firstres)) { |
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my ($value,$level) = map { &unescape($_); } split(/:/,$hash{'deeplinkonly_'.$prev}); |
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my ($state,$others,$listed,$scope,$protect) = split(/,/,$value); |
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unless (($state eq 'both') || ($hash{'is_map_'.$prev})) { |
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if ($level eq 'resource') { |
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$deeplinkonly = 1; |
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} elsif ($level eq 'map') { |
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if ($scope eq 'rec') { |
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unless ($mapid == $prevmapid) { |
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unless ($deeplinkchecked) { |
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$deeplink_login_pc = &get_deeplink_login_pc(); |
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$deeplinkchecked = 1; |
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} |
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if ($deeplink_login_pc) { |
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my $poss_map_pc; |
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if ($hash{'is_map_'.$prev}) { |
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$poss_map_pc = $hash{'map_pc_'.$url}; |
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} else { |
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$poss_map_pc = $hash{'map_pc_'.$hash{'map_id_'.$mapid}}; |
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} |
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unless ($deeplink_login_pc == $poss_map_pc) { |
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unless (grep(/^$deeplink_login_pc$/,split(/,/,$hash{'map_hierarchy_'.$poss_map_pc}))) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} |
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} else { |
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if ($mapid != $prevmapid) { |
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$deeplinkonly = 1; |
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} |
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} |
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} |
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} |
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} |
$safecount++; |
$safecount++; |
} while ( ($next) |
} while ( ($next) |
&& ($next!~/\,/) |
&& ($next!~/\,/) |
&& ( |
&& ( |
(!$hash{'src_'.$next}) |
(!$hash{'src_'.$next}) |
|| ( |
|| ( |
(!$env{'request.role.adv'}) |
(!$env{'request.role.adv'}) |
&& $hash{'randomout_'.$next} |
&& (($hash{'randomout_'.$next}) |
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|| ($deeplinkonly) |
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|| ($hash{'deeplinkout_'.$next})) |
) |
) |
|| (!$allowed) |
|| (!$allowed) |
) |
) |
Line 145 sub get_next_possible_move {
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Line 238 sub get_next_possible_move {
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} |
} |
if ($thiscond>$mincond) { $mincond=$thiscond; } |
if ($thiscond>$mincond) { $mincond=$thiscond; } |
} |
} |
} |
} |
foreach my $id (split(/\,/,$posnext)) { |
foreach my $id (split(/\,/,$posnext)) { |
my ($linkid,$condval)=split(/\:/,$id); |
my ($linkid,$condval)=split(/\:/,$id); |
if ($condval>=$mincond) { |
if ($condval>=$mincond) { |
Line 187 sub get_next_possible_move {
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Line 280 sub get_next_possible_move {
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} |
} |
if ($thiscond>$mincond) { $mincond=$thiscond; } |
if ($thiscond>$mincond) { $mincond=$thiscond; } |
} |
} |
} |
} |
foreach my $id (split(/\,/,$posnext)) { |
foreach my $id (split(/\,/,$posnext)) { |
my ($linkid,$condval)=split(/\:/,$id); |
my ($linkid,$condval)=split(/\:/,$id); |
if ($condval>=$mincond) { |
if ($condval>=$mincond) { |
Line 215 sub get_next_possible_move {
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Line 308 sub get_next_possible_move {
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return ($next,$mapurl); |
return ($next,$mapurl); |
} |
} |
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sub navlaunch { |
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my ($r)=@_; |
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&Apache::loncommon::content_type($r,'text/html'); |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
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$r->print(&Apache::loncommon::start_page('Launched')); |
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$r->print(<<ENDNAV); |
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<p><a href="/adm/flip?postdata=firstres%3a">Goto first resource</a></p> |
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<script type="text/javascript"> |
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function collapse() { |
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menu=window.open("/adm/navmaps?collapseExternal","loncapanav", |
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"height=600,width=400,scrollbars=1"); |
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this.document.location='/adm/navmaps?turningOffExternal'; |
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} |
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</script> |
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<p><a href="javascript:collapse();">Collapse external navigation window</a></p> |
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ENDNAV |
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$r->print(&Apache::loncommon::end_page()); |
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} |
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sub first_accessible_resource { |
sub first_accessible_resource { |
my $furl; |
my $furl; |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
&GDBM_READER(),0640)) { |
&GDBM_READER(),0640)) { |
$furl=$hash{'first_url'}; |
$furl=$hash{'first_url'}; |
my %args; |
my (%args,$url,$argstr); |
my ($url,$args) = split(/\?/,$furl); |
if ($furl =~ m{^/enc/}) { |
foreach my $pair (split(/\&/,$args)) { |
($url,$argstr) = split(/\?/,&Apache::lonenc::unencrypted($furl)); |
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} else { |
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($url,$argstr) = split(/\?/,$furl); |
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} |
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foreach my $pair (split(/\&/,$argstr)) { |
my ($name,$value) = split(/=/,$pair); |
my ($name,$value) = split(/=/,$pair); |
$args{&unescape($name)} = &unescape($value); |
$args{&unescape($name)} = &unescape($value); |
} |
} |
if (!&Apache::lonnet::allowed('bre',$url,$args{'symb'})) { |
my $priv = &Apache::lonnet::allowed('bre',$url,$args{'symb'}); |
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my $allowed = (($priv eq 'F') || ($priv eq '2') || ($priv eq 'A')); |
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if (!$allowed) { |
# Wow, we cannot see this ... move forward to the next one that we can see |
# Wow, we cannot see this ... move forward to the next one that we can see |
my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward'); |
my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward',1); |
# Build the new URL |
# Build the new URL |
my ($newmapid,$newresid)=split(/\./,$newrid); |
if ($newrid eq '') { |
my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid}); |
$furl = '/adm/navmaps'; |
$furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb }); |
} else { |
if ($hash{'encrypted_'.$newrid}) { |
my ($newmapid,$newresid)=split(/\./,$newrid); |
$furl=&Apache::lonenc::encrypted($furl); |
my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid}); |
} |
$furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb }); |
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if ($hash{'encrypted_'.$newrid}) { |
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$furl=&Apache::lonenc::encrypted($furl); |
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} |
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} |
} |
} |
untie(%hash); |
untie(%hash); |
return $furl; |
return $furl; |
Line 264 sub first_accessible_resource {
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Line 347 sub first_accessible_resource {
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} |
} |
} |
} |
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sub first_answerable_ressymb { |
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my $navmap = Apache::lonnavmaps::navmap->new; |
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return unless (ref($navmap)); |
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my $iterator = $navmap->getIterator(undef,undef,undef,1); |
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return unless (ref($iterator)); |
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my ($curRes,$result); |
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while ($curRes = $iterator->next()) { |
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if (ref($curRes) && $curRes->is_problem()) { |
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foreach my $part (@{$curRes->parts()}) { |
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if ($curRes->tries($part) < $curRes->maxtries($part)) { |
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$result = $curRes->link().'?symb='.$curRes->shown_symb(); |
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last; |
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} |
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} |
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} |
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} |
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if ($result) { |
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return $result; |
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} else { |
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return &first_accessible_resource(); |
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} |
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} |
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sub check_http_req { |
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my ($srcref,$hostname) = @_; |
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return unless (ref($srcref) eq 'SCALAR'); |
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my $usehttp; |
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if ($env{'request.course.id'}) { |
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my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
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my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
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if (($$srcref =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && |
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($ENV{'SERVER_PORT'} == 443) && |
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($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) { |
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unless ((&Apache::lonnet::uses_sts()) || |
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(&Apache::lonnet::waf_allssl($hostname))) { |
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$$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1'; |
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$usehttp = 1; |
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} |
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} elsif (($$srcref =~ m{^\Q/adm/wrapper/ext/\E(?!https:)}) && |
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($ENV{'SERVER_PORT'} == 443)) { |
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unless ((&Apache::lonnet::uses_sts()) || |
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(&Apache::lonnet::waf_allssl($hostname))) { |
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my ($url,$anchor) = ($$srcref =~ /^([^\#]+)(?:|(\#[^\#]+))$/); |
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$$srcref = $url . (($$srcref =~/\?/)? '&':'?') . 'usehttp=1' .$anchor; |
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$usehttp = 1; |
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} |
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} |
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} |
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return $usehttp; |
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} |
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sub reinited_js { |
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my ($url,$cid,$timeout) = @_; |
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if (!$timeout) { |
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$timeout = 0; |
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} |
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return <<"END"; |
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<script type="text/javascript"> |
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// <![CDATA[ |
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setTimeout(function() { |
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var newurl = '$url'; |
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if (document.getElementById('LC_update_$cid')) { |
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document.getElementById('LC_update_$cid').style.display = 'none'; |
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} |
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if ((newurl !== null) && (newurl !== '') && (newurl !== 'undefined')) { |
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window.location.href = "$url"; |
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} |
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}, $timeout); |
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// ]]> |
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</script> |
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END |
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} |
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sub get_deeplink_login_pc { |
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my $deeplink_login_pc; |
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if (($env{'request.deeplink.login'}) && ($env{'request.course.id'})) { |
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my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
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my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
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my $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom); |
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if ($deeplink_symb) { |
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my $loginmap; |
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if ($deeplink_symb =~ /\.(page|sequence)$/) { |
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$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[2]); |
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} else { |
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$loginmap = &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($deeplink_symb))[0]); |
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} |
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$deeplink_login_pc = $hash{'map_pc_'.$loginmap}; |
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} |
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} |
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return $deeplink_login_pc; |
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} |
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# ================================================================ Main Handler |
# ================================================================ Main Handler |
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sub handler { |
sub handler { |
Line 280 sub handler {
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Line 455 sub handler {
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my %cachehash=(); |
my %cachehash=(); |
my $multichoice=0; |
my $multichoice=0; |
my %multichoicehash=(); |
my %multichoicehash=(); |
my ($redirecturl,$redirectsymb); |
my %prog_state=(); |
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my ($redirecturl,$redirectsymb,$enc,$anchor,$deeplinklevel); |
my $next=''; |
my $next=''; |
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my $hostname = $r->hostname(); |
my @possibilities=(); |
my @possibilities=(); |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']); |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']); |
if (($env{'form.postdata'})&&($env{'request.course.fn'})) { |
if (($env{'form.postdata'})&&($env{'request.course.fn'})) { |
$env{'form.postdata'}=~/(\w+)\:(.*)/; |
my ($direction,$currenturl) = ($env{'form.postdata'}=~/(\w+)\:(.*)/); |
my $direction=$1; |
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my $currenturl=$2; |
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if ($currenturl=~m|^/enc/|) { |
if ($currenturl=~m|^/enc/|) { |
$currenturl=&Apache::lonenc::unencrypted($currenturl); |
$currenturl=&Apache::lonenc::unencrypted($currenturl); |
} |
} |
$currenturl=~s/\.\d+\.(\w+)$/\.$1/; |
$currenturl=~s/\.\d+\.(\w+)$/\.$1/; |
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$currenturl=~s/^https?\:\/\///; |
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$currenturl=~s/^[^\/]+//; |
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my ($preupdatepos,$last,$reinitcheck); |
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if ($direction eq 'return') { |
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if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
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&GDBM_READER(),0640)) { |
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$last=$hash{'last_known'}; |
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untie(%hash); |
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} |
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} elsif ($direction eq 'firstanswerable') { |
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my $furl = &first_answerable_ressymb(); |
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my $usehttp = &check_http_req(\$furl,$hostname); |
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if (($usehttp) && ($hostname ne '')) { |
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$furl='http://'.$hostname.$furl; |
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} else { |
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$furl=&Apache::lonnet::absolute_url().$furl; |
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} |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->header_out(Location => $furl); |
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return REDIRECT; |
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} elsif ($direction eq 'endplacement') { |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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$r->print(&Apache::lonplacementtest::showresult()); |
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return OK; |
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} |
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if ($env{'request.course.id'}) { |
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# Check if course needs to be re-initialized |
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my $loncaparev = $r->dir_config('lonVersion'); |
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($reinitcheck,my @reinit) = &Apache::loncommon::needs_coursereinit($loncaparev); |
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if ($reinitcheck eq 'switch') { |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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$r->print(&Apache::loncommon::check_release_result(@reinit)); |
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return OK; |
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} |
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my ($cnum,$cdom); |
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if ($reinitcheck) { |
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$cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
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$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
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} |
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if (($reinitcheck eq 'main') || ($reinitcheck eq 'both')) { |
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$preupdatepos = &Apache::lonnet::symbread($currenturl); |
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unless ($direction eq 'return') { |
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if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
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&GDBM_READER(),0640)) { |
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$last=$hash{'last_known'}; |
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untie(%hash); |
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} |
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} |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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$r->print(&Apache::loncommon::start_page('Content Changed')); |
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my $preamble = '<div id="LC_update_'.$env{'request.course.id'}.'" class="LC_info">'. |
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'<br />'. |
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&mt('Your course session is being updated because of recent changes by course personnel.'). |
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' '.&mt('Please be patient').'.<br /></div>'. |
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'<div style="padding:0;clear:both;margin:0;border:0"></div>'; |
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%prog_state = &Apache::lonhtmlcommon::Create_PrgWin($r,undef,$preamble); |
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&Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Updating course')); |
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my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum"); |
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&Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished!')); |
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if ($ferr) { |
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&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
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my $requrl = $r->uri; |
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$env{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; |
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$env{'user.reinit'} = 1; |
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return HTTP_NOT_ACCEPTABLE; |
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} else { |
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if ($last) { |
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my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
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unless (&Apache::lonnet::symbverify($last,$fn)) { |
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undef($last); |
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} |
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} |
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} |
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} |
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if (($reinitcheck eq 'both') || ($reinitcheck eq 'supp')) { |
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my $possdel; |
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if ($reinitcheck eq 'supp') { |
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$possdel = 1; |
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} |
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my ($supplemental,$refs_updated) = &Apache::lonnet::get_supplemental($cnum,$cdom,'',$possdel); |
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unless ($refs_updated) { |
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&Apache::loncommon::set_supp_httprefs($cnum,$cdom,$supplemental); |
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} |
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} |
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} |
if ($direction eq 'firstres') { |
if ($direction eq 'firstres') { |
my $furl=&first_accessible_resource(); |
my $furl=&first_accessible_resource(); |
&Apache::loncommon::content_type($r,'text/html'); |
my $usehttp = &check_http_req(\$furl,$hostname); |
$r->header_out(Location => |
if (($usehttp) && ($hostname ne '')) { |
&Apache::lonnet::absolute_url().$furl); |
$furl='http://'.$hostname.$furl; |
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} else { |
return REDIRECT; |
$furl=&Apache::lonnet::absolute_url().$furl; |
|
} |
|
if ($reinitcheck eq 'update') { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($furl,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $furl); |
|
return REDIRECT; |
|
} |
} |
} |
if ($direction eq 'return' || $direction eq 'navlaunch') { |
if ($direction eq 'return') { |
# -------------------------------------------------------- Return to last known |
# -------------------------------------------------------- Return to last known |
my $last; |
my ($newloc,$usehttp); |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
|
&GDBM_READER(),0640)) { |
|
$last=$hash{'last_known'}; |
|
untie(%hash); |
|
} |
|
my $newloc; |
|
if (($last) && (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
if (($last) && (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db', |
&GDBM_READER(),0640))) { |
&GDBM_READER(),0640))) { |
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last); |
$id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id; |
$id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id; |
$newloc=$hash{'src_'.$id}; |
$newloc=$hash{'src_'.$id}; |
if ($newloc) { |
if ($newloc) { |
if ($hash{'encrypted_'.$id}) { $newloc=&Apache::lonenc::encrypted($newloc); } |
$usehttp = &check_http_req(\$newloc,$hostname); |
|
if ($hash{'encrypted_'.$id}) { |
|
$newloc=&Apache::lonenc::encrypted($newloc); |
|
} |
|
if ($newloc =~ m{^(/adm/wrapper/ext/[^\#]+)(?:|(\#[^\#]+))$}) { |
|
my ($url,$anchor) = ($1,$2); |
|
if ($anchor) { |
|
$newloc = $url.(($url=~/\?/)?'&':'?').'symb='.&escape($last).$anchor; |
|
} |
|
} |
} else { |
} else { |
$newloc='/adm/navmaps'; |
$newloc='/adm/navmaps'; |
} |
} |
untie %hash; |
untie %hash; |
} else { |
} else { |
$newloc='/adm/navmaps'; |
$newloc='/adm/navmaps'; |
} |
} |
if ($newloc eq '/adm/navmaps' && $direction eq 'navlaunch') { |
if (($usehttp) && ($hostname ne '')) { |
&navlaunch($r); |
$newloc='http://'.$hostname.$newloc; |
return OK; |
} else { |
} else { |
$newloc=&Apache::lonnet::absolute_url().$newloc |
|
} |
|
if ($reinitcheck eq 'update') { |
|
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
&Apache::loncommon::content_type($r,'text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->header_out(Location => |
$r->header_out(Location => $newloc); |
&Apache::lonnet::absolute_url().$newloc); |
|
|
|
return REDIRECT; |
return REDIRECT; |
} |
} |
} |
} |
$currenturl=~s/^https?\:\/\///; |
|
$currenturl=~s/^[^\/]+//; |
|
# |
# |
# Is the current URL on the map? If not, start with last known URL |
# Is the current URL on the map? If not, start with last known URL |
# |
# |
|
|
unless (&Apache::lonnet::is_on_map($currenturl)) { |
unless (&Apache::lonnet::is_on_map($currenturl)) { |
my $last; |
if ($preupdatepos) { |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
undef($preupdatepos); |
&GDBM_READER(),0640)) { |
} elsif (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
$last=$hash{'last_known'}; |
&GDBM_READER(),0640)) { |
|
$last=$hash{'last_known'}; |
untie(%hash); |
untie(%hash); |
} |
} |
if ($last) { |
if ($last) { |
$currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]); |
$currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]); |
} else { |
} else { |
if ($direction eq 'return') { |
my $newloc = &Apache::lonnet::absolute_url(). |
&Apache::loncommon::content_type($r,'text/html'); |
'/adm/navmaps'; |
$r->header_out(Location => |
if ($reinitcheck eq 'update') { |
&Apache::lonnet::absolute_url(). |
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
'/adm/noidea.html'); |
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
return REDIRECT; |
$r->print(&Apache::loncommon::end_page()); |
} else { |
return OK; |
&navlaunch($r); |
} else { |
return OK; |
&Apache::loncommon::content_type($r,'text/html'); |
} |
$r->header_out(Location => $newloc); |
|
return REDIRECT; |
|
} |
} |
} |
} |
} |
# ------------------------------------------- Do we have any idea where we are? |
# ------------------------------------------- Do we have any idea where we are? |
my $position; |
my $position; |
if ($position=Apache::lonnet::symbread($currenturl)) { |
if ($preupdatepos) { |
|
$position = $preupdatepos; |
|
} else { |
|
$position=Apache::lonnet::symbread($currenturl); |
|
} |
|
if ($position) { |
# ------------------------------------------------------------------------- Yes |
# ------------------------------------------------------------------------- Yes |
my ($startoutmap,$mapnum,$thisurl)=&Apache::lonnet::decode_symb($position); |
my ($startoutmap,$mapnum,$thisurl)=&Apache::lonnet::decode_symb($position); |
$cachehash{$startoutmap}{$thisurl}=[$thisurl,$mapnum]; |
$cachehash{$startoutmap}{$thisurl}=[$thisurl,$mapnum]; |
Line 387 sub handler {
|
Line 674 sub handler {
|
@possibilities=split(/\,/,$next); |
@possibilities=split(/\,/,$next); |
if ($#possibilities==0) { |
if ($#possibilities==0) { |
# ---------------------------------------------- Only one possibility, redirect |
# ---------------------------------------------- Only one possibility, redirect |
($redirecturl,$redirectsymb)=&hash_src($next); |
($redirecturl,$redirectsymb,$enc,$anchor)=&hash_src($next); |
$cachehash{$endupmap}{$redirecturl}= |
$cachehash{$endupmap}{$redirecturl}= |
[$redirecturl,(split(/\./,$next))[1]]; |
[$redirecturl,(split(/\./,$next))[1]]; |
} else { |
} else { |
Line 412 sub handler {
|
Line 699 sub handler {
|
} else { |
} else { |
# -------------------------------------------------------------- No place to go |
# -------------------------------------------------------------- No place to go |
$multichoice=-1; |
$multichoice=-1; |
|
if ($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 |
# ----------------- The program must come past this point to untie the big hash |
untie(%hash); |
untie(%hash); |
# --------------------------------------------------------- Store position info |
# --------------------------------------------------------- Store position info |
$cachehash{$startoutmap}{'last_direction'}=[$direction,'notasymb']; |
$cachehash{$startoutmap}{'last_direction'}=[$direction,'notasymb']; |
foreach my $thismap (keys %cachehash) { |
foreach my $thismap (keys(%cachehash)) { |
my $mapnum=$cachehash{$thismap}->{'mapnum'}; |
my $mapnum=$cachehash{$thismap}->{'mapnum'}; |
delete($cachehash{$thismap}->{'mapnum'}); |
delete($cachehash{$thismap}->{'mapnum'}); |
&Apache::lonnet::symblist($thismap, |
&Apache::lonnet::symblist($thismap, |
Line 432 sub handler {
|
Line 728 sub handler {
|
if ($direction eq 'back') { |
if ($direction eq 'back') { |
&Apache::lonnet::linklog($redirecturl,$currenturl); |
&Apache::lonnet::linklog($redirecturl,$currenturl); |
} |
} |
# ------------------------------------------------- Check for critical messages |
# ------------------------------------- Check for and display critical messages |
if ((time-$env{'user.criticalcheck.time'})>300) { |
my ($redirect, $url) = &Apache::loncommon::critical_redirect(300,'flip'); |
my @what=&Apache::lonnet::dump |
unless ($redirect) { |
('critical',$env{'user.domain'}, |
my $usehttp = &check_http_req(\$redirecturl,$hostname); |
$env{'user.name'}); |
if (($usehttp) && ($hostname ne '')) { |
if ($what[0]) { |
$url='http://'.$hostname.$redirecturl; |
if (($what[0] ne 'con_lost') && |
} else { |
($what[0]!~/^error\:/)) { |
$url=&Apache::lonnet::absolute_url().$redirecturl; |
$redirecturl='/adm/email?critical=display'; |
} |
$redirectsymb=''; |
my $addanchor; |
} |
if (($anchor ne '') && (!$enc || $env{'request.role.adv'})) { |
} |
$addanchor = 1; |
&Apache::lonnet::appenv({'user.criticalcheck.time'=>time}); |
$url =~ s/\#.+$//; |
} |
} |
|
$url = &add_get_param($url, { 'symb' => $redirectsymb}); |
&Apache::loncommon::content_type($r,'text/html'); |
if ($addanchor) { |
my $url=&Apache::lonnet::absolute_url().$redirecturl; |
$url .= $anchor; |
$url = &add_get_param($url, { 'symb' => $redirectsymb}); |
} |
$r->header_out(Location => $url); |
} |
return REDIRECT; |
if ($reinitcheck eq 'update') { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($url,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
return OK; |
|
} else { |
|
&Apache::loncommon::content_type($r,'text/html'); |
|
$r->header_out(Location => $url); |
|
return REDIRECT; |
|
} |
} else { |
} else { |
# --------------------------------------------------------- There was a problem |
# --------------------------------------------------------- There was a problem |
&Apache::loncommon::content_type($r,'text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
my %lt=&Apache::lonlocal::texthash('title' => 'End of Sequence', |
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' => |
'explain' => |
'You have reached the end of the sequence of materials.', |
'You have reached the end of the sequence of materials.', |
'back' => 'Go Back', |
'back' => 'Go Back', |
'nav' => 'Navigate Course Content', |
'nav' => 'Course Contents', |
'wherenext' => |
'wherenext' => |
'There are several possibilities of where to go next', |
'There are several possibilities of where to go next', |
'pick' => |
'pick' => |
'Please click on the the resource you intend to access', |
'Please click on the the resource you intend to access', |
'titleheader' => 'Title', |
'titleheader' => 'Title', |
'type' => 'Type'); |
'type' => 'Type', |
|
'update' => 'Content updated', |
|
'expupdate' => 'As a result of a recent update to the sequence of materials, it is not possible to complete the page flip.', |
|
'gonav' => 'Go to the Contents page to select a resource to display.', |
|
); |
|
if (&Apache::loncommon::course_type() eq 'Community') { |
|
$lt{'nav'} = &mt('Community Contents'); |
|
} |
if ($#possibilities>0) { |
if ($#possibilities>0) { |
my $start_page= |
my $start_page= |
&Apache::loncommon::start_page('Multiple Resources'); |
&Apache::loncommon::start_page('Multiple Resources'); |
Line 476 $start_page
|
Line 793 $start_page
|
<p> |
<p> |
$lt{'pick'}: |
$lt{'pick'}: |
<p> |
<p> |
<table border=2> |
<table border="2"> |
<tr><th>$lt{'titleheader'}</th><th>$lt{'type'}</th></tr> |
<tr><th>$lt{'titleheader'}</th><th>$lt{'type'}</th></tr> |
ENDSTART |
ENDSTART |
foreach my $id (@possibilities) { |
foreach my $id (@possibilities) { |
|
my $src = $multichoicehash{'src_'.$id}; |
|
my $usehttp = &check_http_req(\$src,$hostname); |
|
if (($usehttp) && ($hostname ne '')) { |
|
$src = 'http://'.$hostname.$src; |
|
} |
$r->print( |
$r->print( |
'<tr><td><a href="'. |
'<tr><td><a href="'. |
&add_get_param($multichoicehash{'src_'.$id}, |
&add_get_param($src, |
{'symb' => |
{'symb' => |
$multichoicehash{'symb_'.$id}, |
$multichoicehash{'symb_'.$id}, |
}).'">'. |
}).'">'. |
Line 492 ENDSTART
|
Line 814 ENDSTART
|
} |
} |
$r->print('</table>'); |
$r->print('</table>'); |
} else { |
} else { |
my $start_page= |
if ($reinitcheck) { |
&Apache::loncommon::start_page('No Resource'); |
if (&Apache::loncommon::course_type() eq 'Community') { |
$r->print(<<ENDNONE); |
$r->print( |
$start_page |
&Apache::loncommon::start_page('Community Contents Updated')); |
<h3>$lt{'title'}</h3> |
} else { |
<p>$lt{'explain'}</p> |
$r->print( |
ENDNONE |
&Apache::loncommon::start_page('Course Contents Updated')); |
|
} |
|
$r->print('<h2>'.$lt{'update'}.'</h2>' |
|
.'<p>'.$lt{'expupdate'}.'<br />' |
|
.$lt{'gonav'}.'</p>'); |
|
} else { |
|
if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') && |
|
(!$env{'request.role.adv'})) { |
|
my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1); |
|
if ($incomplete) { |
|
$r->print(&Apache::lonplacementtest::showincomplete($incomplete)); |
|
} else { |
|
$r->print(&Apache::lonplacementtest::showresult(1)); |
|
} |
|
} else { |
|
$r->print( |
|
&Apache::loncommon::start_page('No Resource')); |
|
if ($deeplinklevel eq 'resource') { |
|
$r->print('<h2>'.$lt{'deeplink'}.'</h2>' |
|
.'<p>'.$lt{'deeplinkres'}.'</p>'); |
|
} elsif ($deeplinklevel eq 'map') { |
|
$r->print('<h2>'.$lt{'title'}.'</h2>' |
|
.'<p>'.$lt{'deeplinkmap'}.'</p>'); |
|
} else { |
|
$r->print('<h2>'.$lt{'title'}.'</h2>' |
|
.'<p>'.$lt{'explain'}.'</p>'); |
|
} |
|
} |
|
} |
} |
} |
$r->print(<<ENDMENU); |
unless (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') && |
<ul> |
(!$env{'request.role.adv'})) { |
<li><a href="/adm/flip?postdata=return:">$lt{'back'}</a></li> |
if ($deeplinklevel) { |
<li><a href="/adm/navmaps">$lt{'nav'}</a></li> |
$r->print( |
</ul> |
&Apache::lonhtmlcommon::actionbox( |
ENDMENU |
['<a href="/adm/flip?postdata=return:">'.$lt{'back'}.'</a>'])); |
|
} elsif ((!@possibilities) && ($reinitcheck)) { |
|
$r->print( |
|
&Apache::lonhtmlcommon::actionbox( |
|
['<a href="/adm/navmaps">'.$lt{'nav'}.'</a></li>' |
|
])); |
|
} else { |
|
$r->print( |
|
&Apache::lonhtmlcommon::actionbox( |
|
['<a href="/adm/flip?postdata=return:">'.$lt{'back'}.'</a></li>', |
|
'<a href="/adm/navmaps">'.$lt{'nav'}.'</a></li>' |
|
])); |
|
} |
|
|
|
} |
$r->print(&Apache::loncommon::end_page()); |
$r->print(&Apache::loncommon::end_page()); |
|
|
return OK; |
return OK; |
} |
} |
} else { |
} else { |
# ------------------------------------------------- Problem, could not tie hash |
# ------------------------------------------------- Problem, could not tie hash |
|
if ($reinitcheck eq 'update') { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&Apache::loncommon::end_page()); |
|
} |
$env{'user.error.msg'}="/adm/flip:bre:0:1:Course Data Missing"; |
$env{'user.error.msg'}="/adm/flip:bre:0:1:Course Data Missing"; |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
} else { |
} else { |
# ---------------------------------------- No, could not determine where we are |
# ---------------------------------------- No, could not determine where we are |
$r->internal_redirect('/adm/ambiguous'); |
my $newloc = '/adm/ambiguous'; |
|
if ($reinitcheck eq 'update') { |
|
&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
|
$r->print(&reinited_js($newloc,$env{'request.course.id'},100)); |
|
$r->print(&Apache::loncommon::end_page()); |
|
} else { |
|
$r->internal_redirect($newloc); |
|
} |
|
return OK; |
} |
} |
} else { |
} else { |
# -------------------------- Class was not initialized or page fliped strangely |
# -------------------------- Class was not initialized or page fliped strangely |
Line 528 ENDMENU
|
Line 905 ENDMENU
|
1; |
1; |
__END__ |
__END__ |
|
|
|
=pod |
|
|
|
=head1 NAME |
|
|
|
Apache::lonpageflip |
|
|
|
=head1 SYNOPSIS |
|
|
|
Deals with forward, backward, and other page flips. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 OVERVIEW |
|
|
|
(empty) |
|
|
|
=head1 SUBROUTINES |
|
|
|
=over cleanup() |
|
|
|
=item addrid() |
|
|
|
=item fullmove() |
|
|
|
=item hash_src() |
|
|
|
=item move() |
|
|
|
=item get_next_possible_move() |
|
|
|
=item first_accessible_resource() |
|
|
|
=item handler() |
|
|
|
=back |
|
|
|
=cut |
|
|
|
|
|
|