--- rat/lonpageflip.pm 2015/03/14 22:26:50 1.88 +++ rat/lonpageflip.pm 2021/08/06 01:27:04 1.108 @@ -2,7 +2,7 @@ # # Page flip handler # -# $Id: lonpageflip.pm,v 1.88 2015/03/14 22:26:50 raeburn Exp $ +# $Id: lonpageflip.pm,v 1.108 2021/08/06 01:27:04 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -36,6 +36,7 @@ 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; @@ -83,17 +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,$direction); @@ -104,17 +117,93 @@ sub move { if ($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})) ) || (!$allowed) ) @@ -149,7 +238,7 @@ sub get_next_possible_move { } if ($thiscond>$mincond) { $mincond=$thiscond; } } - } + } foreach my $id (split(/\,/,$posnext)) { my ($linkid,$condval)=split(/\:/,$id); if ($condval>=$mincond) { @@ -191,7 +280,7 @@ sub get_next_possible_move { } if ($thiscond>$mincond) { $mincond=$thiscond; } } - } + } foreach my $id (split(/\,/,$posnext)) { my ($linkid,$condval)=split(/\:/,$id); if ($condval>=$mincond) { @@ -224,22 +313,32 @@ sub first_accessible_resource { if (tie(%hash,'GDBM_File',$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; @@ -248,6 +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 { @@ -264,102 +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'})) { my ($direction,$currenturl) = ($env{'form.postdata'}=~/(\w+)\:(.*)/); - + if ($currenturl=~m|^/enc/|) { + $currenturl=&Apache::lonenc::unencrypted($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 = $r->dir_config('lonVersion'); - my ($result,@reinit) = &Apache::loncommon::needs_coursereinit($loncaparev); - if ($result eq 'switch') { + ($reinitcheck,my @reinit) = &Apache::loncommon::needs_coursereinit($loncaparev); + if ($reinitcheck eq 'switch') { &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; $r->print(&Apache::loncommon::check_release_result(@reinit)); return OK; - } elsif ($result eq 'update') { + } 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{'explain'}.'
'); - } - $r->print( - &Apache::lonhtmlcommon::actionbox( - [''.$lt{'back'}.'', - ''.$lt{'nav'}.'' - ]) - .&Apache::loncommon::end_page()); + if ($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'}.'
'); + } + } + } + } + unless (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') || + ($env{'request.role.adv'})) { + if ($deeplinklevel) { + $r->print( + &Apache::lonhtmlcommon::actionbox( + [''.$lt{'back'}.''])); + } elsif ((!@possibilities) && ($reinitcheck)) { + $r->print( + &Apache::lonhtmlcommon::actionbox( + [''.$lt{'nav'}.'' + ])); + } else { + $r->print( + &Apache::lonhtmlcommon::actionbox( + [''.$lt{'back'}.'', + ''.$lt{'nav'}.'' + ])); + } + + } + $r->print(&Apache::loncommon::end_page()); + return OK; } } else { # ------------------------------------------------- Problem, could not tie hash + if ($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"; return HTTP_NOT_ACCEPTABLE; } } else { # ---------------------------------------- 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 {