--- rat/lonpageflip.pm 2006/10/20 22:04:16 1.74
+++ rat/lonpageflip.pm 2021/08/06 01:27:04 1.108
@@ -2,7 +2,7 @@
#
# Page flip handler
#
-# $Id: lonpageflip.pm,v 1.74 2006/10/20 22:04:16 albertel Exp $
+# $Id: lonpageflip.pm,v 1.108 2021/08/06 01:27:04 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -27,6 +27,8 @@
# http://www.lon-capa.org/
#
+
+
package Apache::lonpageflip;
use strict;
@@ -34,6 +36,9 @@ use LONCAPA;
use Apache::Constants qw(:common :http REDIRECT);
use Apache::lonnet;
use Apache::loncommon();
+use Apache::lonnavmaps();
+use Apache::lonuserstate;
+use Apache::lonlocal;
use HTML::TokeParser;
use GDBM_File;
@@ -79,17 +84,29 @@ sub hash_src {
my ($mapid,$resid)=split(/\./,$id);
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},
$resid,$hash{'src_'.$id});
+ my $anchor;
+ if ($hash{'ext_'.$id} eq 'true:') {
+ if ($hash{'src_'.$id} =~ /(\#.+)$/) {
+ $anchor = $1;
+ }
+ }
if ($hash{'encrypted_'.$id}) {
return (&Apache::lonenc::encrypted($hash{'src_'.$id}),
- &Apache::lonenc::encrypted($symb));
+ &Apache::lonenc::encrypted($symb),
+ $hash{'encrypted_'.$id},$anchor);
}
- return ($hash{'src_'.$id},$symb);
+ return ($hash{'src_'.$id},$symb,$hash{'encrypted_'.$id},$anchor);
}
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,$direction);
@@ -100,17 +117,93 @@ sub move {
if ($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,$level) = split(/:/,$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) = 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}))
)
|| (!$allowed)
)
@@ -145,7 +238,7 @@ sub get_next_possible_move {
}
if ($thiscond>$mincond) { $mincond=$thiscond; }
}
- }
+ }
foreach my $id (split(/\,/,$posnext)) {
my ($linkid,$condval)=split(/\:/,$id);
if ($condval>=$mincond) {
@@ -187,7 +280,7 @@ sub get_next_possible_move {
}
if ($thiscond>$mincond) { $mincond=$thiscond; }
}
- }
+ }
foreach my $id (split(/\,/,$posnext)) {
my ($linkid,$condval)=split(/\:/,$id);
if ($condval>=$mincond) {
@@ -215,47 +308,37 @@ sub get_next_possible_move {
return ($next,$mapurl);
}
-sub navlaunch {
- my ($r)=@_;
- &Apache::loncommon::content_type($r,'text/html');
- &Apache::loncommon::no_cache($r);
- $r->send_http_header;
- $r->print(&Apache::loncommon::start_page('Launched'));
- $r->print(<
Collapse external navigation window
-ENDNAV - $r->print(&Apache::loncommon::end_page()); -} - sub first_accessible_resource { my $furl; if (tie(%hash,'GDBM_File',$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; @@ -264,6 +347,102 @@ sub first_accessible_resource { } } +sub first_answerable_ressymb { + my $navmap = Apache::lonnavmaps::navmap->new; + return unless (ref($navmap)); + my $iterator = $navmap->getIterator(undef,undef,undef,1); + return unless (ref($iterator)); + my ($curRes,$result); + while ($curRes = $iterator->next()) { + if (ref($curRes) && $curRes->is_problem()) { + foreach my $part (@{$curRes->parts()}) { + if ($curRes->tries($part) < $curRes->maxtries($part)) { + $result = $curRes->link().'?symb='.$curRes->shown_symb(); + last; + } + } + } + } + if ($result) { + return $result; + } else { + return &first_accessible_resource(); + } +} + +sub check_http_req { + my ($srcref,$hostname) = @_; + return unless (ref($srcref) eq 'SCALAR'); + my $usehttp; + if ($env{'request.course.id'}) { + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + if (($$srcref =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && + ($ENV{'SERVER_PORT'} == 443) && + ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) { + unless ((&Apache::lonnet::uses_sts()) || + (&Apache::lonnet::waf_allssl($hostname))) { + $$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1'; + $usehttp = 1; + } + } elsif (($$srcref =~ m{^\Q/adm/wrapper/ext/\E(?!https:)}) && + ($ENV{'SERVER_PORT'} == 443)) { + unless ((&Apache::lonnet::uses_sts()) || + (&Apache::lonnet::waf_allssl($hostname))) { + my ($url,$anchor) = ($$srcref =~ /^([^\#]+)(?:|(\#[^\#]+))$/); + $$srcref = $url . (($$srcref =~/\?/)? '&':'?') . 'usehttp=1' .$anchor; + $usehttp = 1; + } + } + } + return $usehttp; +} + +sub reinited_js { + my ($url,$cid,$timeout) = @_; + if (!$timeout) { + $timeout = 0; + } + return <<"END"; + +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'}; + if ($env{'request.deeplink.login'}) { + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + 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 { @@ -280,91 +459,189 @@ sub handler { my %cachehash=(); my $multichoice=0; my %multichoicehash=(); - my ($redirecturl,$redirectsymb); + my %prog_state=(); + my ($redirecturl,$redirectsymb,$enc,$anchor,$deeplinklevel); my $next=''; + my $hostname = $r->hostname(); my @possibilities=(); &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']); if (($env{'form.postdata'})&&($env{'request.course.fn'})) { - $env{'form.postdata'}=~/(\w+)\:(.*)/; - my $direction=$1; - my $currenturl=$2; + my ($direction,$currenturl) = ($env{'form.postdata'}=~/(\w+)\:(.*)/); if ($currenturl=~m|^/enc/|) { - $currenturl=&Apache::lonenc::unencrypted($currenturl); + $currenturl=&Apache::lonenc::unencrypted($currenturl); } $currenturl=~s/\.\d+\.(\w+)$/\.$1/; + $currenturl=~s/^https?\:\/\///; + $currenturl=~s/^[^\/]+//; + my ($preupdatepos,$last,$reinitcheck); + if ($direction eq 'return') { + if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', + &GDBM_READER(),0640)) { + $last=$hash{'last_known'}; + untie(%hash); + } + } elsif ($direction eq 'firstanswerable') { + my $furl = &first_answerable_ressymb(); + my $usehttp = &check_http_req(\$furl,$hostname); + if (($usehttp) && ($hostname ne '')) { + $furl='http://'.$hostname.$furl; + } else { + $furl=&Apache::lonnet::absolute_url().$furl; + } + &Apache::loncommon::content_type($r,'text/html'); + $r->header_out(Location => $furl); + return REDIRECT; + } elsif ($direction eq 'endplacement') { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + $r->print(&Apache::lonplacementtest::showresult()); + return OK; + } + if ($env{'request.course.id'}) { + # Check if course needs to be re-initialized + my $loncaparev = $r->dir_config('lonVersion'); + ($reinitcheck,my @reinit) = &Apache::loncommon::needs_coursereinit($loncaparev); + if ($reinitcheck eq 'switch') { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + $r->print(&Apache::loncommon::check_release_result(@reinit)); + return OK; + } elsif ($reinitcheck eq 'update') { + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + $preupdatepos = &Apache::lonnet::symbread($currenturl); + unless ($direction eq 'return') { + if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', + &GDBM_READER(),0640)) { + $last=$hash{'last_known'}; + untie(%hash); + } + } + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + $r->print(&Apache::loncommon::start_page('Content Changed')); + my $preamble = '$lt{'pick'}:
-
$lt{'titleheader'} | $lt{'type'} |
---|---|
'. @@ -492,31 +803,86 @@ ENDSTART } $r->print(' |
$lt{'explain'}
-ENDNONE + if ($reinitcheck) { + if (&Apache::loncommon::course_type() eq 'Community') { + $r->print( + &Apache::loncommon::start_page('Community Contents Updated')); + } else { + $r->print( + &Apache::loncommon::start_page('Course Contents Updated')); + } + $r->print(''.$lt{'expupdate'}.'
'
+ .$lt{'gonav'}.'
'.$lt{'deeplinkres'}.'
'); + } elsif ($deeplinklevel eq 'map') { + $r->print(''.$lt{'deeplinkmap'}.'
'); + } else { + $r->print(''.$lt{'explain'}.'
'); + } + } + } } - $r->print(<The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.