--- rat/lonwrapper.pm 2012/11/27 23:45:15 1.42 +++ rat/lonwrapper.pm 2017/05/10 19:25:28 1.64 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Wrapper for external and binary files as standalone resources # -# $Id: lonwrapper.pm,v 1.42 2012/11/27 23:45:15 raeburn Exp $ +# $Id: lonwrapper.pm,v 1.64 2017/05/10 19:25:28 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,62 +37,163 @@ use Apache::lonlocal; use Apache::loncommon(); use Apache::lonhtmlcommon(); use Apache::lonextresedit(); +use Apache::lonexttool(); +use LONCAPA qw(:DEFAULT :match); +use HTML::Entities(); # ================================================================ Main Handler sub wrapper { - my ($url,$brcrum) = @_; + my ($url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool,$linktext,$explanation, + $title,$width,$height) = @_; my $forcereg; unless ($env{'form.folderpath'}) { $forcereg = 1; } + my %lt = &Apache::lonlocal::texthash( + 'noif' => 'No iframe support.', + 'show' => 'Show content in pop-up window', + ); + my $anchor; + if ($is_ext) { + if ($env{'form.symb'}) { + (undef,undef,my $res) = &Apache::lonnet::decode_symb($env{'form.symb'}); + if ($res =~ /(#[^#]+)$/) { + $anchor = $1; + } + } elsif ($env{'form.anchor'} ne '') { + $anchor = '#'.$env{'form.anchor'}; + } + } + + my $noiframe = &Apache::loncommon::modal_link($url.$anchor,$lt{'show'},500,400); my $args = {'bgcolor' => '#FFFFFF'}; if ($forcereg) { $args->{'force_register'} = $forcereg; } if (ref($brcrum) eq 'ARRAY') { - $args->{'bread_crumbs'} = $brcrum; + $args->{'bread_crumbs'} = $brcrum; + } + if ($absolute) { + $args->{'use_absolute'} = $absolute; + } + if ($env{'form.only_body'}) { + $args->{'only_body'} = $env{'form.only_body'}; } - my $startpage = Apache::loncommon::start_page('Menu',undef,$args); - my $endpage = Apache::loncommon::end_page(); - - my $script = Apache::lonhtmlcommon::scripttag(< +
+ +$linktext +
+ENDLINK + } + if ($explanation ne '') { + $output .= '
'.$explanation.'
'; } - var pos = height + hdrtop + offset; - \$('.LC_iframecontainer').css('top', pos); + } else { + my $dest = &HTML::Entities::encode($url.$anchor,'&<>"'); + $output .= '
'."\n". + '\n". + "
\n"; + } + $output .= $endpage; + return $output; + } else { + my $offset = 5; + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['inhibitmenu']); + if ($env{'form.inhibitmenu'} eq 'yes') { + $offset = 0; + } + my $script = &Apache::lonhtmlcommon::scripttag(< - - - $endpage + # javascript will position the iframe if window was resized (or zoomed) + my $dest = &HTML::Entities::encode($url.$anchor,'&<>"'); + return < + + + $endpage ENDFRAME + } } sub handler { @@ -103,7 +204,8 @@ sub handler { return OK if $r->header_only; my $url = $r->uri; - my ($is_ext,$brcrum); + my ($is_ext,$brcrum,$absolute,$is_pdf,$exttool,$cdom,$cnum,$hostname, + $linktext,$explanation,$width,$height); for ($url){ s|^/adm/wrapper||; @@ -112,41 +214,85 @@ sub handler { s|:|:|g; } - if ($is_ext) { + + if ($url =~ /\.pdf$/i) { + $is_pdf = 1; + } elsif ($url =~ m{^/adm/($match_domain)/($match_courseid)/(\d+)/ext\.tool$}) { + $cdom = $1; + $cnum = $2; + my $marker = $3; + $exttool = 'iframe'; + my $exttoolremote; + my %toolhash = &Apache::lonnet::get('exttool_'.$marker,['target','linktext','explanation','id','width','height'], + $cdom,$cnum); + if ($toolhash{'id'}) { + my %ltitools = &Apache::lonnet::get_domain_ltitools($cdom); + if (ref($ltitools{$toolhash{'id'}}) eq 'HASH') { + $exttoolremote = $ltitools{$toolhash{'id'}}{'url'}; + } + } + if ($toolhash{'target'} eq 'window') { + $exttool = 'window'; + $width = $toolhash{'width'}; + $height = $toolhash{'height'}; + } elsif ($toolhash{'target'} eq 'tab') { + $exttool = 'tab'; + } + if (($exttool eq 'window') || ($exttool eq 'tab')) { + $linktext = $toolhash{'linktext'}; + $explanation = $toolhash{'explanation'}; + } elsif (($exttoolremote =~ /^http:/) && ($ENV{'SERVER_PORT'} == 443)) { + $exttool = 'tab'; + } + } + if (($is_ext) || ($exttool)) { &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, - ['forceedit','register','folderpath','symb','idx','title']); + ['forceedit','register','folderpath','symb','idx','title','anchor']); if (($env{'form.forceedit'}) && (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) && (($env{'form.folderpath'} =~ /^supplemental/) || ($env{'form.symb'} =~ /^uploaded/))) { + if ($env{'form.symb'}) { + (undef,undef,my $res) = &Apache::lonnet::decode_symb($env{'form.symb'}); + if ($res =~ /(#[^#]+)$/) { + $url .= $1; + } + } elsif ($env{'form.folderpath'} =~ /^supplemental/) { + if ($env{'form.anchor'} ne '') { + $url .= '#'.$env{'form.anchor'}; + } + } + my $type = 'ext'; + if ($exttool) { + $type = 'tool'; + } elsif (($url =~ /^http:/) && ($ENV{'SERVER_PORT'} == 443)) { + $hostname = $r->hostname(); + } $r->print( &Apache::lonextresedit::display_editor($url,$env{'form.folderpath'}, $env{'form.symb'}, - $env{'form.idx'})); + $env{'form.idx'},$type,$cdom, + $cnum,$hostname)); return OK; } elsif ($env{'form.folderpath'} =~ /^supplemental/) { my $crstype = &Apache::loncommon::course_type(); - $brcrum = - &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$env{'form.title'},1); - if (ref($brcrum) eq 'ARRAY') { - my $last = $env{'form.title'}; - if ($last eq '') { - $last = &mt('External Resource'); - } - push(@{$brcrum}, - {'title' => $last, - 'text' => $last, - 'no_mt' => 1, - }); - + my $title = $env{'form.title'}; + if ($title eq '') { + if ($is_ext) { + $title = &mt('External Resource'); + } else { + $title = &mt('External Tool'); + } } + $brcrum = + &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1); } } # # Actual URL # - if ($url=~/$LONCAPA::assess_re/) { + if (($url=~/$LONCAPA::assess_re/) && (!$exttool)) { # # This is uploaded homework # @@ -156,7 +302,8 @@ sub handler { # # This is not homework # - if ($is_ext) { + if (($is_ext) || ($exttool)) { + $absolute = $env{'request.use_absolute'}; $ENV{'QUERY_STRING'} =~ s/(^|\&)symb=[^\&]*/$1/; $ENV{'QUERY_STRING'} =~ s/\&$//; } @@ -166,9 +313,12 @@ sub handler { } # encrypt url if not external - &Apache::lonenc::check_encrypt(\$url) if $url !~ /^https?\:/ ; + unless ($is_ext) { + &Apache::lonenc::check_encrypt(\$url); + } - $r->print( wrapper($url,$brcrum) ); + $r->print( wrapper($url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool, + $linktext,$explanation,undef,$width,$height) ); } # not just the menu @@ -195,22 +345,63 @@ described at http://www.lon-capa.org. =over -=item wrapper($url,$brcrum) +=item wrapper($url,$brcrum,$absolute,$is_ext,$is_pdf,$linktext,$explanation,$title,$width,$height) + +=over + +=item $url -Wraps $url in an iframe and generates a page for it. -$brcrum contains breadcrumbs for unregistered urls +url to display by including in an iframe within a +LON-CAPA page which has a standard LON-CAPA inline menu. + +=item $brcrum + +breadcrumbs for unregistered urls (i.e., external resources in Supplemental Content). -Returns markup for the entire page. -=item handler() +=item $absolute -=back +contains protocol (http or https) followed by +the hostname, if menu items in the standard LON-CAPA +interface created by the call to loncommon::start_page() +within &wrapper() need to use absolute URLs rather than +relative URLs. -=cut +That will be the case where an external resource has been +served from port 80, when the server customarily serves +requests using Apache/SSL (i.e., port 443). mod_rewrite +is used to switch requests for external resources and +the syllabus: /public///syllabus +(which might also point at an external resource) +from https:// to http:// where the the URL of the remote site +specified in the resource itself is http://. + +This is done to avoid default mixed content blocking +in Firefox 23 and later, when serving from Apache/SSL. + +=item $is_ext + +true if URL is for an external resource. + +=item $is_pdf +true if URL is for a PDF (based on file extension). +=item $title +optional. If wrapped item is a PDF, and $env{'browser.mobile'} +is true, a link to a PDF is shown. The "title" will be displayed +above the link, but if not provided as an arg, $env{'form.title'} +will be used, otherwise, the filename will be displayed (unless +hidden URL set for the resource). +=back + +Returns markup for the entire page. +=item handler() +=back + +=cut