--- loncom/interface/loncommon.pm 2023/01/20 19:17:23 1.1075.2.161.2.13 +++ loncom/interface/loncommon.pm 2016/07/18 19:28:58 1.1250 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # a pile of common routines # -# $Id: loncommon.pm,v 1.1075.2.161.2.13 2023/01/20 19:17:23 raeburn Exp $ +# $Id: loncommon.pm,v 1.1250 2016/07/18 19:28:58 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -61,7 +61,7 @@ use POSIX qw(strftime mktime); use Apache::lonmenu(); use Apache::lonenc(); use Apache::lonlocal; -use Apache::lonnavmaps(); +use Apache::lonnet(); use HTML::Entities; use Apache::lonhtmlcommon(); use Apache::loncoursedata(); @@ -71,21 +71,18 @@ use Apache::lonuserutils(); use Apache::lonuserstate(); use Apache::courseclassifier(); use LONCAPA qw(:DEFAULT :match); -use LONCAPA::map(); -use HTTP::Request; use DateTime::TimeZone; use DateTime::Locale; use Encode(); +use Text::Aspell; use Authen::Captcha; use Captcha::reCAPTCHA; use JSON::DWIW; use LWP::UserAgent; use Crypt::DES; use DynaLoader; # for Crypt::DES version -use File::Copy(); -use File::Path(); -use String::CRC32(); -use Short::URL(); +use MIME::Lite; +use MIME::Types; # ---------------------------------------------- Designs use vars qw(%defaultdesign); @@ -170,6 +167,7 @@ sub ssi_with_retries { # ----------------------------------------------- Filetypes/Languages/Copyright my %language; my %supported_language; +my %supported_codes; my %latex_language; # For choosing hyphenation in my %latex_language_bykey; # for choosing hyphenation from metadata my %cprtag; @@ -200,18 +198,19 @@ BEGIN { { my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}. '/language.tab'; - if ( open(my $fh,'<',$langtabfile) ) { + if ( open(my $fh,"<$langtabfile") ) { while (my $line = <$fh>) { next if ($line=~/^\#/); chomp($line); - my ($key,$two,$country,$three,$enc,$val,$sup,$latex)=(split(/\t/,$line)); + my ($key,$code,$country,$three,$enc,$val,$sup,$latex)=(split(/\t/,$line)); $language{$key}=$val.' - '.$enc; if ($sup) { $supported_language{$key}=$sup; + $supported_codes{$key} = $code; } if ($latex) { $latex_language_bykey{$key} = $latex; - $latex_language{$two} = $latex; + $latex_language{$code} = $latex; } } close($fh); @@ -221,7 +220,7 @@ BEGIN { { my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}. '/copyright.tab'; - if ( open (my $fh,'<',$copyrightfile) ) { + if ( open (my $fh,"<$copyrightfile") ) { while (my $line = <$fh>) { next if ($line=~/^\#/); chomp($line); @@ -235,7 +234,7 @@ BEGIN { { my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}. '/source_copyright.tab'; - if ( open (my $fh,'<',$sourcecopyrightfile) ) { + if ( open (my $fh,"<$sourcecopyrightfile") ) { while (my $line = <$fh>) { next if ($line =~ /^\#/); chomp($line); @@ -249,7 +248,7 @@ BEGIN { # -------------------------------------------------------------- default domain designs my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors'; my $designfile = $designdir.'/default.tab'; - if ( open (my $fh,'<',$designfile) ) { + if ( open (my $fh,"<$designfile") ) { while (my $line = <$fh>) { next if ($line =~ /^\#/); chomp($line); @@ -263,12 +262,12 @@ BEGIN { { my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}. '/filecategories.tab'; - if ( open (my $fh,'<',$categoryfile) ) { + if ( open (my $fh,"<$categoryfile") ) { while (my $line = <$fh>) { next if ($line =~ /^\#/); chomp($line); my ($extension,$category)=(split(/\s+/,$line,2)); - push(@{$category_extensions{lc($category)}},$extension); + push @{$category_extensions{lc($category)}},$extension; } close($fh); } @@ -278,7 +277,7 @@ BEGIN { { my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}. '/filetypes.tab'; - if ( open (my $fh,'<',$typesfile) ) { + if ( open (my $fh,"<$typesfile") ) { while (my $line = <$fh>) { next if ($line =~ /^\#/); chomp($line); @@ -431,7 +430,7 @@ sub studentbrowser_javascript { END # output the initial values for the selection lists - $result .= "\n"; my @order = sort(keys(%{$hashref})); if (ref($menuorder) eq 'ARRAY') { @order = @{$menuorder}; @@ -1222,7 +1243,7 @@ END =pod -=item * &help_open_topic($topic,$text,$stayOnPage,$width,$height,$imgid,$links_target) +=item * &help_open_topic($topic,$text,$stayOnPage,$width,$height,$imgid) Returns a string corresponding to an HTML link to the given help $topic, where $topic corresponds to the name of a .tex file in @@ -1246,12 +1267,10 @@ $imgid is the id of the img tag used for used in a javascript call to switch the image src. See lonhtmlcommon::htmlareaselectactive() for an example. -$links_target will optionally be set to a target (_top, _parent or _self). - =cut sub help_open_topic { - my ($topic, $text, $stayOnPage, $width, $height, $imgid, $links_target) = @_; + my ($topic, $text, $stayOnPage, $width, $height, $imgid) = @_; $text = "" if (not defined $text); $stayOnPage = 0 if (not defined $stayOnPage); $width = 500 if (not defined $width); @@ -1265,11 +1284,7 @@ sub help_open_topic { $topic=~s/\W/\_/g; if (!$stayOnPage) { - if ($env{'browser.mobile'}) { - $link = "javascript:openMyModal('/adm/help/${filename}.hlp',$width,$height,'yes');"; - } else { - $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))"; - } + $link = "javascript:openMyModal('/adm/help/${filename}.hlp',$width,$height,'yes');"; } elsif ($stayOnPage eq 'popup') { $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))"; } else { @@ -1277,15 +1292,9 @@ sub help_open_topic { } # Add the text - my $target = ' target="_top"'; - if ($links_target) { - $target = ' target="'.$links_target.'"'; - } elsif (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self')) { - $target = ''; - } if ($text ne "") { $template.='' - .'' + .'' .$text.''; } @@ -1295,7 +1304,7 @@ sub help_open_topic { if ($imgid ne '') { $imgid = ' id="'.$imgid.'"'; } - $template.=' ' + $template.=' ' .''.&mt('Help: [_1]',$topic).''; unless ($not_author) { - $out .= ' ' - .&help_open_topic('Authoring_Output_Tags',&mt('Output Tags'),$stayOnPage,undef,600) - .' ' - .&help_open_topic('Authoring_Multilingual_Problems',&mt('Languages'),$stayOnPage,undef,600) - .''; + $out .= '' + .&help_open_topic('Authoring_Output_Tags',&mt('Output Tags'),$stayOnPage,undef,600) + .' ' + .&help_open_topic('Authoring_Multilingual_Problems',&mt('How to create problems in different languages'),$stayOnPage,undef,600) + .''; } $out .= ''; # End cheatsheet return $out; @@ -1368,20 +1377,20 @@ ENDOUTPUT # now just updates the help link and generates a blue icon sub help_open_menu { - my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text,$links_target) + my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text) = @_; $stayOnPage = 1; my $output; if ($component_help) { if (!$text) { $output=&help_open_topic($component_help,undef,$stayOnPage, - $width,$height,'',$links_target); + $width,$height); } else { my $help_text; $help_text=&unescape($topic); $output='
'. &help_open_topic($component_help,$help_text,$stayOnPage, - $width,$height,'',$links_target).'
'; + $width,$height).''; } } my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage); @@ -1389,12 +1398,10 @@ sub help_open_menu { } sub top_nav_help { - my ($text,$linkattr) = @_; + my ($text) = @_; $text = &mt($text); - my $stay_on_page; - unless ($env{'environment.remote'} eq 'on') { - $stay_on_page = 1; - } + my $stay_on_page = 1; + my ($link,$banner_link); unless ($env{'request.noversionuri'} =~ m{^/adm/helpmenu}) { $link = ($stay_on_page) ? "javascript:helpMenu('display')" @@ -1405,7 +1412,7 @@ sub top_nav_help { if ($link) { return <<"END"; $banner_link -$text +$text END } else { return ' '.$text.' '; @@ -1426,7 +1433,7 @@ sub help_menu_js { 'js_ready' => 1, 'use_absolute' => $httphost, 'add_entries' => { - 'border' => '0', + 'border' => '0', 'rows' => "110,*",},}); my $end_page = &Apache::loncommon::end_page({'frameset' => 1, @@ -1490,26 +1497,19 @@ sub help_open_bug { { $link = $url; } - - my $target = '_top'; - if ((($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) || - (($env{'request.deeplink.login'}) && ($env{'request.deeplink.target'} eq '_self'))) { - $target = '_blank'; - } - # Add the text if ($text ne "") { $template .= "". - "
$text"; + "$text"; } # Add the graphic my $title = &mt('Report a Bug'); my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif"); $template .= <<"ENDTEMPLATE"; - (Bug: $topic) + (Bug: $topic) ENDTEMPLATE if ($text ne '') { $template.='
' }; return $template; @@ -1775,6 +1775,162 @@ RESIZE } sub colorfuleditor_js { + my $browse_or_search; + my $respath; + my ($cnum,$cdom) = &crsauthor_url(); + if ($cnum) { + $respath = "/res/$cdom/$cnum/"; + my %js_lt = &Apache::lonlocal::texthash( + sunm => 'Sub-directory name', + save => 'Save page to make this permanent', + ); + &js_escape(\%js_lt); + $browse_or_search = <<"END"; + + function toggleChooser(form,element,titleid,only,search) { + var disp = 'none'; + if (document.getElementById('chooser_'+element)) { + var curr = document.getElementById('chooser_'+element).style.display; + if (curr == 'none') { + disp='inline'; + if (form.elements['chooser_'+element].length) { + for (var i=0; i 1) { + window['select1'+element+'_changed'](); + } + } + } + document.getElementById('chooser_'+element+'_crsres').style.display = 'block'; + + } + if (document.getElementById('chooser_'+element+'_upload')) { + document.getElementById('chooser_'+element+'_upload').style.display = 'none'; + if (document.getElementById('uploadcrsres_'+element)) { + document.getElementById('uploadcrsres_'+element).value = ''; + } + } + return; + } + + function toggleCrsUpload(form,element,numcrsdirs) { + if (document.getElementById('chooser_'+element+'_crsres')) { + document.getElementById('chooser_'+element+'_crsres').style.display = 'none'; + } + if (document.getElementById('chooser_'+element+'_upload')) { + var curr = document.getElementById('chooser_'+element+'_upload').style.display; + if (curr == 'none') { + if (numcrsdirs) { + form.elements['crsauthorpath_'+element].selectedIndex = 0; + form.elements['newsubdir_'+element][0].checked = true; + toggleNewsubdir(form,element); + } + } + document.getElementById('chooser_'+element+'_upload').style.display = 'block'; + } + return; + } + + function toggleResImport(form,element) { + var choices = new Array('crsres','upload'); + for (var i=0; i // @@ -1820,14 +1976,14 @@ sub colorfuleditor_js { } // only iterate whole storage if nothing to override - if(localStorage.getItem(key) == null){ + if(localStorage.getItem(key) == null){ // prevent storage from growing large if(localStorage.length > 50){ var regex_getTimestamp = /^(?:\d)+;/; var oldest_timestamp = regex_getTimestamp.exec(localStorage.key(0)); var oldest_key; - + for(var i = 1; i < localStorage.length; i++){ if (regex_getTimestamp.exec(localStorage.key(i)) < oldest_timestamp) { oldest_key = localStorage.key(i); @@ -1857,7 +2013,7 @@ sub colorfuleditor_js { pairs = valueArr[i].split(','); elements = document.getElementsByName(pairs[0]); - for (var j = 0; j < elements.length; j++){ + for (var j = 0; j < elements.length; j++){ elements[j].style.display = pairs[1]; if (pairs[1] == "none"){ var regex_id = /([_\\d]+)\$/; @@ -1870,7 +2026,7 @@ sub colorfuleditor_js { } function getTagList () { - + var stringToSearch = document.lonhomework.innerHTML; var ret = new Array(); @@ -1878,7 +2034,7 @@ sub colorfuleditor_js { var tag_list = stringToSearch.match(regex_findBlock); if(tag_list != null){ - for(var i = 0; i < tag_list.length; i++){ + for(var i = 0; i < tag_list.length; i++){ ret.push(tag_list[i].replace(/"/, '')); } } @@ -1915,7 +2071,7 @@ sub colorfuleditor_js { for(var i = 0; i < tag_list.length; i++){ elem_list = document.getElementsByName(tag_list[i]); - + if(elem_list.length > 0){ elem = elem_list[0]; break; @@ -1938,7 +2094,7 @@ sub colorfuleditor_js { rect.right <= (window.innerWidth || document.documentElement.clientWidth) /*or $(window).width() */ ); } - + function autosize(depth){ var cmInst = window['cm'+depth]; var fitsizeButton = document.getElementById('fitsize'+depth); @@ -1957,7 +2113,7 @@ sub colorfuleditor_js { } } - +$browse_or_search // ]]> @@ -2005,10 +2161,133 @@ sub insert_folding_button { my $curDepth = $Apache::lonxml::curdepth; my $lastresource = $env{'request.ambiguous'}; - return ""; } +sub crsauthor_url { + my ($url) = @_; + if ($url eq '') { + $url = $ENV{'REQUEST_URI'}; + } + my ($cnum,$cdom); + if ($env{'request.course.id'}) { + my ($audom,$auname) = ($url =~ m{^/priv/($match_domain)/($match_name)/}); + if ($audom ne '' && $auname ne '') { + if (($env{'course.'.$env{'request.course.id'}.'.num'} eq $auname) && + ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $audom)) { + $cnum = $auname; + $cdom = $audom; + } + } + } + return ($cnum,$cdom); +} + +sub import_crsauthor_form { + my ($form,$firstselectname,$secondselectname,$onchangefirst,$only,$suffix) = @_; + return (0) unless ($env{'request.course.id'}); + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $crshome = $env{'course.'.$env{'request.course.id'}.'.home'}; + return (0) unless (($cnum ne '') && ($cdom ne '')); + my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'}; + my @ids=&Apache::lonnet::current_machine_ids(); + my ($output,$is_home,$relpath,%subdirs,%files,%selimport_menus); + + if (grep(/^\Q$crshome\E$/,@ids)) { + $is_home = 1; + } + $relpath = "/priv/$cdom/$cnum"; + &Apache::lonnet::recursedirs($is_home,'priv',$londocroot,$relpath,'',\%subdirs,\%files); + my %lt = &Apache::lonlocal::texthash ( + fnam => 'Filename', + dire => 'Directory', + ); + my $numdirs = scalar(keys(%files)); + my (%possexts,$singledir,@singledirfiles); + if ($only) { + map { $possexts{$_} = 1; } split(/\s*,\s*/,$only); + } + my (%nonemptydirs,$possdirs); + if ($numdirs > 1) { + my @order; + foreach my $key (sort { lc($a) cmp lc($b) } (keys(%files))) { + if (ref($files{$key}) eq 'HASH') { + my $shown = $key; + if ($key eq '') { + $shown = '/'; + } + my @ordered = (); + foreach my $file (sort { lc($a) cmp lc($b) } (keys(%{$files{$key}}))) { + if ($only) { + my ($ext) = ($file =~ /\.([^.]+)$/); + unless ($possexts{lc($ext)}) { + next; + } + } + $selimport_menus{$key}->{'select2'}->{$file} = $file; + push(@ordered,$file); + } + if (@ordered) { + push(@order,$key); + $nonemptydirs{$key} = 1; + $selimport_menus{$key}->{'text'} = $shown; + $selimport_menus{$key}->{'default'} = ''; + $selimport_menus{$key}->{'select2'}->{''} = ''; + $selimport_menus{$key}->{'order'} = \@ordered; + } + } + } + $possdirs = scalar(keys(%nonemptydirs)); + if ($possdirs > 1) { + my @order = sort { lc($a) cmp lc($b) } (keys(%nonemptydirs)); + $output = $lt{'dire'}. + &linked_select_forms($form,'
'. + $lt{'fnam'},'', + $firstselectname,$secondselectname, + \%selimport_menus,\@order, + $onchangefirst,'',$suffix).'
'; + } elsif ($possdirs == 1) { + $singledir = (keys(%nonemptydirs))[0]; + if (ref($selimport_menus{$singledir}->{'order'}) eq 'ARRAY') { + @singledirfiles = @{$selimport_menus{$singledir}->{'order'}}; + } + delete($selimport_menus{$singledir}); + } + } elsif ($numdirs == 1) { + $singledir = (keys(%files))[0]; + foreach my $file (sort { lc($a) cmp lc($b) } (keys(%{$files{$singledir}}))) { + if ($only) { + my ($ext) = ($file =~ /\.([^.]+)$/); + unless ($possexts{lc($ext)}) { + next; + } + } + push(@singledirfiles,$file); + } + if (@singledirfiles) { + $possdirs == 1; + } + } + if (($possdirs == 1) && (@singledirfiles)) { + my $showdir = $singledir; + if ($singledir eq '') { + $showdir = '/'; + } + $output = $lt{'dire'}. + '
'. + $lt{'fnam'}.'
'."\n"; + } + return ($possdirs,$output); +} =pod @@ -2269,15 +2548,12 @@ sub multiple_select_form { =pod -=item * &select_form($defdom,$name,$hashref,$onchange,$readonly) +=item * &select_form($defdom,$name,$hashref,$onchange) Returns a string containing a form to allow a user to select the domain to preform an operation in. @@ -2480,19 +2756,14 @@ The optional $incdoms is a reference to The optional $excdoms is a reference to an array of domains which will be excluded from the available options. -The optional $disabled argument, if true, adds the disabled attribute to the select tag. - =cut #------------------------------------------- sub select_dom_form { - my ($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms,$disabled) = @_; + my ($defdom,$name,$includeempty,$showdomdesc,$onchange,$incdoms,$excdoms) = @_; if ($onchange) { $onchange = ' onchange="'.$onchange.'"'; } - if ($disabled) { - $disabled = ' disabled="disabled"'; - } my (@domains,%exclude); if (ref($incdoms) eq 'ARRAY') { @domains = sort {lc($a) cmp lc($b)} (@{$incdoms}); @@ -2501,9 +2772,9 @@ sub select_dom_form { } if ($includeempty) { @domains=('',@domains); } if (ref($excdoms) eq 'ARRAY') { - map { $exclude{$_} = 1; } @{$excdoms}; + map { $exclude{$_} = 1; } @{$excdoms}; } - my $selectdomain = "\n"; foreach my $dom (@domains) { next if ($exclude{$dom}); $selectdomain.="\n"; + ($posstype eq $crstype ? ' selected="selected" ' : ''). ">".$shown."\n"; } $typeselectform.=""; } @@ -17054,7 +16247,7 @@ sub build_filters { if (exists($filter->{'instcodefilter'})) { # if (($fixeddom) || ($formname eq 'requestcrs') || # ($formname eq 'modifycourse') || ($formname eq 'filterpicker')) { - if ($codedom) { + if ($codedom) { $officialjs = 1; ($instcodeform,$jscript,$$numtitlesref) = &Apache::courseclassifier::instcode_selectors($codedom,'filterpicker', @@ -17183,7 +16376,7 @@ $typeelement return $jscript.$clonewarning.$output; } -=pod +=pod =item * &timebased_select_form() @@ -17198,7 +16391,7 @@ item - name of form element (sincefilter filter - anonymous hash of criteria and their values Returns: HTML for a select box contained a blank, then six time selections, - with value set in incoming form variables currently selected. + with value set in incoming form variables currently selected. Side Effects: None @@ -17235,7 +16428,7 @@ page load completion for page showing se Inputs: None -Returns: markup containing updateFilters() and hideSearching() javascript functions. +Returns: markup containing updateFilters() and hideSearching() javascript functions. Side Effects: None @@ -17274,7 +16467,7 @@ to retrieve a hash for which keys are co Inputs: -dom - domain being searched +dom - domain being searched type - course type ('Course' or 'Community' or '.' if any). @@ -17286,7 +16479,7 @@ cloneruname - optional username of new c clonerudom - optional domain of new course owner -domcloner - optional "domcloner" flag; has value=1 if user has ccc priv in domain being filtered by, +domcloner - optional "domcloner" flag; has value=1 if user has ccc priv in domain being filtered by, (used when DC is using course creation form) codetitles - reference to array of titles of components in institutional codes (official courses). @@ -17296,8 +16489,8 @@ cc_clone - escaped comma separated list reqcrsdom - domain of new course, where search_courses is used to identify potential courses to clone -reqinstcode - institutional code of new course, where search_courses is used to identify potential - courses to clone +reqinstcode - institutional code of new course, where search_courses is used to identify potential + courses to clone Returns: %courses - hash of courses satisfying search criteria, keys = course IDs, values are corresponding colon-separated escaped description, institutional code, owner and type. @@ -17380,7 +16573,7 @@ sub search_courses { if (ref($courses{$cid}) eq 'HASH') { if (ref($courses{$cid}{roles}) eq 'ARRAY') { if (!grep(/^\Q$courserole\E$/,@{$courses{$cid}{roles}})) { - push(@{$courses{$cid}{roles}},$courserole); + push (@{$courses{$cid}{roles}},$courserole); } } else { $courses{$cid}{roles} = [$courserole]; @@ -17423,8 +16616,8 @@ $required - LON-CAPA version needed by c Returns: -$switchserver - query string tp append to /adm/switchserver call (if - current server's LON-CAPA version is too old. +$switchserver - query string tp append to /adm/switchserver call (if + current server's LON-CAPA version is too old. $warning - Message is displayed if no suitable server could be found. @@ -17537,7 +16730,7 @@ Inputs: $loncaparev - Version on current server (format: Major.Minor.Subrelease-datestamp) $interval (optional) - Time which may elapse (in s) between last check for content - change in current course. (default: 600 s). + change in current course. (default: 600 s). Returns: an array; first element is: @@ -17545,9 +16738,9 @@ Returns: an array; first element is: 'switch' - if content updates mean user's session needs to be switched to a server running a newer LON-CAPA version - + 'update' - if course session needs to be refreshed (i.e., Big Hash needs to be reloaded) - on current server hosting user's session + on current server hosting user's session '' - if no action required. @@ -17555,10 +16748,10 @@ Returns: an array; first element is: If first item element is 'switch': -second item is $switchwarning - Warning message if no suitable server found to host session. +second item is $switchwarning - Warning message if no suitable server found to host session. third item is $switchserver - query string to append to /adm/switchserver containing lonHostID - and current role. + and current role. otherwise: no other elements returned. @@ -17576,52 +16769,24 @@ sub needs_coursereinit { $interval = 600; } if (($now-$env{'request.course.timechecked'})>$interval) { + my $lastchange = &Apache::lonnet::get_coursechange($cdom,$cnum); &Apache::lonnet::appenv({'request.course.timechecked'=>$now}); - my $blocked = &blocking_status('reinit',undef,$cnum,$cdom,undef,1); - if ($blocked) { - return (); - } - my $update; - my $lastmainchange = &Apache::lonnet::get_coursechange($cdom,$cnum); - my $lastsuppchange = &Apache::lonnet::get_suppchange($cdom,$cnum); - if ($lastmainchange > $env{'request.course.tied'}) { - my ($needswitch,$switchwarning,$switchserver) = &switch_for_update($loncaparev,$cdom,$cnum); - if ($needswitch) { - return ('switch',$switchwarning,$switchserver); - } - $update = 'main'; - } - if ($lastsuppchange > $env{'request.course.suppupdated'}) { - if ($update) { - $update = 'both'; - } else { - my ($needswitch,$switchwarning,$switchserver) = &switch_for_update($loncaparev,$cdom,$cnum); - if ($needswitch) { - return ('switch',$switchwarning,$switchserver); - } else { - $update = 'supp'; + if ($lastchange > $env{'request.course.tied'}) { + my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired'); + if ($curr_reqd_hash{'internal.releaserequired'} ne '') { + my $required = $env{'course.'.$cdom.'_'.$cnum.'.internal.releaserequired'}; + if ($curr_reqd_hash{'internal.releaserequired'} ne $required) { + &Apache::lonnet::appenv({'course.'.$cdom.'_'.$cnum.'.internal.releaserequired' => + $curr_reqd_hash{'internal.releaserequired'}}); + my ($switchserver,$switchwarning) = + &check_release_required($loncaparev,$cdom.'_'.$cnum,$env{'request.role'}, + $curr_reqd_hash{'internal.releaserequired'}); + if ($switchwarning ne '' || $switchserver ne '') { + return ('switch',$switchwarning,$switchserver); + } } } - return ($update); - } - } - return (); -} - -sub switch_for_update { - my ($loncaparev,$cdom,$cnum) = @_; - my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired'); - if ($curr_reqd_hash{'internal.releaserequired'} ne '') { - my $required = $env{'course.'.$cdom.'_'.$cnum.'.internal.releaserequired'}; - if ($curr_reqd_hash{'internal.releaserequired'} ne $required) { - &Apache::lonnet::appenv({'course.'.$cdom.'_'.$cnum.'.internal.releaserequired' => - $curr_reqd_hash{'internal.releaserequired'}}); - my ($switchserver,$switchwarning) = - &check_release_required($loncaparev,$cdom.'_'.$cnum,$env{'request.role'}, - $curr_reqd_hash{'internal.releaserequired'}); - if ($switchwarning ne '' || $switchserver ne '') { - return ('switch',$switchwarning,$switchserver); - } + return ('update'); } } return (); @@ -17713,152 +16878,33 @@ sub parse_supplemental_title { return $title; } -sub get_supplemental { - my ($cnum,$cdom,$ignorecache,$possdel)=@_; - my $hashid=$cnum.':'.$cdom; - my ($supplemental,$cached,$set_httprefs); - unless ($ignorecache) { - ($supplemental,$cached) = &Apache::lonnet::is_cached_new('supplemental',$hashid); - } - unless (defined($cached)) { - my $chome=&Apache::lonnet::homeserver($cnum,$cdom); - unless ($chome eq 'no_host') { - my @order = @LONCAPA::map::order; - my @resources = @LONCAPA::map::resources; - my @resparms = @LONCAPA::map::resparms; - my @zombies = @LONCAPA::map::zombies; - my ($errors,%ids,%hidden); - $errors = - &recurse_supplemental($cnum,$cdom,'supplemental.sequence', - $errors,$possdel,\%ids,\%hidden); - @LONCAPA::map::order = @order; - @LONCAPA::map::resources = @resources; - @LONCAPA::map::resparms = @resparms; - @LONCAPA::map::zombies = @zombies; - $set_httprefs = 1; - if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { - &Apache::lonnet::appenv({'request.course.suppupdated' => time}); - } - $supplemental = { - ids => \%ids, - hidden => \%hidden, - }; - &Apache::lonnet::do_cache_new('supplemental',$hashid,$supplemental,600); - } - } - return ($supplemental,$set_httprefs); -} - sub recurse_supplemental { - my ($cnum,$cdom,$suppmap,$errors,$possdel,$suppids,$hiddensupp,$hidden) = @_; - if (($suppmap) && (ref($suppids) eq 'HASH') && (ref($hiddensupp) eq 'HASH')) { - my $mapnum; - if ($suppmap eq 'supplemental.sequence') { - $mapnum = 0; - } else { - ($mapnum) = ($suppmap =~ /^supplemental_(\d+)\.sequence$/); - } + my ($cnum,$cdom,$suppmap,$numfiles,$errors) = @_; + if ($suppmap) { my ($errtext,$fatal) = &LONCAPA::map::mapread('/uploaded/'.$cdom.'/'.$cnum.'/'.$suppmap); if ($fatal) { $errors ++; } else { - my @order = @LONCAPA::map::order; - if (@order > 0) { - my @resources = @LONCAPA::map::resources; - my @resparms = @LONCAPA::map::resparms; - foreach my $idx (@order) { - my ($title,$src,$ext,$type,$status)=split(/\:/,$resources[$idx]); + if ($#LONCAPA::map::resources > 0) { + foreach my $res (@LONCAPA::map::resources) { + my ($title,$src,$ext,$type,$status)=split(/\:/,$res); if (($src ne '') && ($status eq 'res')) { - my $id = $mapnum.':'.$idx; - push(@{$suppids->{$src}},$id); - if (($hidden) || (&get_supp_parameter($resparms[$idx],'parameter_hiddenresource') =~ /^yes/i)) { - $hiddensupp->{$id} = 1; - } if ($src =~ m{^\Q/uploaded/$cdom/$cnum/\E(supplemental_\d+\.sequence)$}) { - $errors = &recurse_supplemental($cnum,$cdom,$1,$errors,$possdel,$suppids, - $hiddensupp,$hiddensupp->{$id}); + ($numfiles,$errors) = &recurse_supplemental($cnum,$cdom,$1,$numfiles,$errors); } else { - my $allowed; - if (($env{'request.role.adv'}) || (!$hiddensupp->{$id})) { - $allowed = 1; - } elsif ($possdel) { - foreach my $item (@{$suppids->{$src}}) { - next if ($item eq $id); - unless ($hiddensupp->{$item}) { - $allowed = 1; - last; - } - } - if ((!$allowed) && (exists($env{'httpref.'.$src}))) { - &Apache::lonnet::delenv('httpref.'.$src); - } - } - if ($allowed && (!exists($env{'httpref.'.$src}))) { - &Apache::lonnet::allowuploaded('/adm/coursedoc',$src); - } - } - } - } - } - } - } - return $errors; -} - -sub set_supp_httprefs { - my ($cnum,$cdom,$supplemental,$possdel) = @_; - if (ref($supplemental) eq 'HASH') { - if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) { - foreach my $src (keys(%{$supplemental->{'ids'}})) { - next if ($src =~ /\.sequence$/); - if (ref($supplemental->{'ids'}->{$src}) eq 'ARRAY') { - my $allowed; - if ($env{'request.role.adv'}) { - $allowed = 1; - } else { - foreach my $id (@{$supplemental->{'ids'}->{$src}}) { - unless ($supplemental->{'hidden'}->{$id}) { - $allowed = 1; - last; - } - } - } - if (exists($env{'httpref.'.$src})) { - if ($possdel) { - unless ($allowed) { - &Apache::lonnet::delenv('httpref.'.$src); - } + $numfiles ++; } - } elsif ($allowed) { - &Apache::lonnet::allowuploaded('/adm/coursedoc',$src); } } } - if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { - &Apache::lonnet::appenv({'request.course.suppupdated' => time}); - } - } - } -} - -sub get_supp_parameter { - my ($resparm,$name)=@_; - return if ($resparm eq ''); - my $value=undef; - my $ptype=undef; - foreach (split('&&&',$resparm)) { - my ($thistype,$thisname,$thisvalue)=split('___',$_); - if ($thisname eq $name) { - $value=$thisvalue; - $ptype=$thistype; } } - return $value; + return ($numfiles,$errors); } sub symb_to_docspath { - my ($symb,$navmapref) = @_; - return unless ($symb && ref($navmapref)); + my ($symb) = @_; + return unless ($symb); my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb); if ($resurl=~/\.(sequence|page)$/) { $mapurl=$resurl; @@ -17866,11 +16912,9 @@ sub symb_to_docspath { $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'}; } my $mapresobj; - unless (ref($$navmapref)) { - $$navmapref = Apache::lonnavmaps::navmap->new(); - } - if (ref($$navmapref)) { - $mapresobj = $$navmapref->getResourceByUrl($mapurl); + my $navmap = Apache::lonnavmaps::navmap->new(); + if (ref($navmap)) { + $mapresobj = $navmap->getResourceByUrl($mapurl); } $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1}; my $type=$2; @@ -17880,7 +16924,7 @@ sub symb_to_docspath { if ($pcslist ne '') { foreach my $pc (split(/,/,$pcslist)) { next if ($pc <= 1); - my $res = $$navmapref->getByMapPc($pc); + my $res = $navmap->getByMapPc($pc); if (ref($res)) { my $thisurl = $res->src(); $thisurl=~s{^.*/([^/]+)\.\w+$}{$1}; @@ -17926,72 +16970,11 @@ sub symb_to_docspath { return $path; } -sub validate_folderpath { - my ($supplementalflag,$allowed,$coursenum,$coursedom) = @_; - if ($env{'form.folderpath'} ne '') { - my @items = split(/\&/,$env{'form.folderpath'}); - my ($badpath,$changed,$got_supp,$supppath,%supphidden,%suppids); - for (my $i=0; $i<@items; $i++) { - my $odd = $i%2; - if (($odd) && (!$supplementalflag) && ($items[$i] !~ /^[^:]*:(|\d+):(|1):(|1):(|1):(|1)$/)) { - $badpath = 1; - } elsif ($odd && $supplementalflag) { - my $idx = $i-1; - if ($items[$i] =~ /^([^:]*)::(|1):::$/) { - my $esc_name = $1; - if ((!$allowed) || ($items[$idx] eq 'supplemental')) { - $supppath .= '&'.$esc_name; - $changed = 1; - } else { - $supppath .= '&'.$items[$i]; - } - } elsif (($allowed) && ($items[$idx] ne 'supplemental')) { - $changed = 1; - my $is_hidden; - unless ($got_supp) { - my ($supplemental) = &get_supplemental($coursenum,$coursedom); - if (ref($supplemental) eq 'HASH') { - if (ref($supplemental->{'hidden'}) eq 'HASH') { - %supphidden = %{$supplemental->{'hidden'}}; - } - if (ref($supplemental->{'ids'}) eq 'HASH') { - %suppids = %{$supplemental->{'ids'}}; - } - } - $got_supp = 1; - } - if (ref($suppids{"/uploaded/$coursedom/$coursenum/$items[$idx].sequence"}) eq 'ARRAY') { - my $mapid = $suppids{"/uploaded/$coursedom/$coursenum/$items[$idx].sequence"}->[0]; - if ($supphidden{$mapid}) { - $is_hidden = 1; - } - } - $supppath .= '&'.$items[$i].'::'.$is_hidden.':::'; - } else { - $supppath .= '&'.$items[$i]; - } - } elsif ((!$odd) && ($items[$i] !~ /^(default|supplemental)(|_\d+)$/)) { - $badpath = 1; - } elsif ($supplementalflag) { - $supppath .= '&'.$items[$i]; - } - last if ($badpath); - } - if ($badpath) { - delete($env{'form.folderpath'}); - } elsif ($changed && $supplementalflag) { - $supppath =~ s/^\&//; - $env{'form.folderpath'} = $supppath; - } - } - return; -} - sub captcha_display { - my ($context,$lonhost,$defdom) = @_; + my ($context,$lonhost) = @_; my ($output,$error); - my ($captcha,$pubkey,$privkey,$version) = - &get_captcha_config($context,$lonhost,$defdom); + my ($captcha,$pubkey,$privkey,$version) = + &get_captcha_config($context,$lonhost); if ($captcha eq 'original') { $output = &create_captcha(); unless ($output) { @@ -18007,9 +16990,9 @@ sub captcha_display { } sub captcha_response { - my ($context,$lonhost,$defdom) = @_; + my ($context,$lonhost) = @_; my ($captcha_chk,$captcha_error); - my ($captcha,$pubkey,$privkey,$version) = &get_captcha_config($context,$lonhost,$defdom); + my ($captcha,$pubkey,$privkey,$version) = &get_captcha_config($context,$lonhost); if ($captcha eq 'original') { ($captcha_chk,$captcha_error) = &check_captcha(); } elsif ($captcha eq 'recaptcha') { @@ -18021,7 +17004,7 @@ sub captcha_response { } sub get_captcha_config { - my ($context,$lonhost,$dom_in_effect) = @_; + my ($context,$lonhost) = @_; my ($captcha,$pubkey,$privkey,$version,$hashtocheck); my $hostname = &Apache::lonnet::hostname($lonhost); my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname); @@ -18061,7 +17044,7 @@ sub get_captcha_config { $captcha = 'recaptcha'; $version = $domconfhash{$serverhomedom.'.login.recaptchaversion'}; if ($version ne '2') { - $version = 1; + $version = 1; } } else { $captcha = 'original'; @@ -18069,27 +17052,6 @@ sub get_captcha_config { } elsif ($domconfhash{$serverhomedom.'.login.captcha'} eq 'original') { $captcha = 'original'; } - } elsif ($context eq 'passwords') { - if ($dom_in_effect) { - my %passwdconf = &Apache::lonnet::get_passwdconf($dom_in_effect); - if ($passwdconf{'captcha'} eq 'recaptcha') { - if (ref($passwdconf{'recaptchakeys'}) eq 'HASH') { - $pubkey = $passwdconf{'recaptchakeys'}{'public'}; - $privkey = $passwdconf{'recaptchakeys'}{'private'}; - } - if ($privkey && $pubkey) { - $captcha = 'recaptcha'; - $version = $passwdconf{'recaptchaversion'}; - if ($version ne '2') { - $version = 1; - } - } else { - $captcha = 'original'; - } - } elsif ($passwdconf{'captcha'} ne 'notused') { - $captcha = 'original'; - } - } } return ($captcha,$pubkey,$privkey,$version); } @@ -18107,17 +17069,13 @@ sub create_captcha { if (-e $Apache::lonnet::perlvar{'lonCaptchaDir'}.'/'.$md5sum.'.png') { $output = ''."\n". - ''. &mt('Type in the letters/numbers shown below').' '. ''. - '
'. + '
'. 'captcha'; last; } } - if ($output eq '') { - &Apache::lonnet::logthis("Failed to create Captcha code after $tries attempts."); - } return $output; } @@ -18156,8 +17114,7 @@ sub check_captcha { sub create_recaptcha { my ($pubkey,$version) = @_; if ($version >= 2) { - return '
'. - '
'; + return '
'; } else { my $use_ssl; if ($ENV{'SERVER_PORT'} == 443) { @@ -18169,20 +17126,19 @@ sub create_recaptcha { &mt('If the text is hard to read, [_1] will replace them.', 'reCAPTCHA refresh'). '

'; - } + } } sub check_recaptcha { my ($privkey,$version) = @_; my $captcha_chk; - my $ip = &Apache::lonnet::get_requestor_ip(); if ($version >= 2) { my $ua = LWP::UserAgent->new; $ua->timeout(10); my %info = ( - secret => $privkey, + secret => $privkey, response => $env{'form.g-recaptcha-response'}, - remoteip => $ip, + remoteip => $ENV{'REMOTE_ADDR'}, ); my $response = $ua->post('https://www.google.com/recaptcha/api/siteverify',\%info); if ($response->is_success) { @@ -18198,7 +17154,7 @@ sub check_recaptcha { my $captcha_result = $captcha->check_answer( $privkey, - $ip, + $ENV{'REMOTE_ADDR'}, $env{'form.recaptcha_challenge_field'}, $env{'form.recaptcha_response_field'}, ); @@ -18247,40 +17203,21 @@ sub cleanup_html { # Checks for critical messages and returns a redirect url if one exists. # $interval indicates how often to check for messages. -# $context is the calling context -- roles, grades, contents, menu or flip. sub critical_redirect { - my ($interval,$context) = @_; - unless (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) { - return (); - } + my ($interval) = @_; if ((time-$env{'user.criticalcheck.time'})>$interval) { - if (($env{'request.course.id'}) && (($context eq 'flip') || ($context eq 'contents'))) { - my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; - my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; - my $blocked = &blocking_status('alert',undef,$cnum,$cdom,undef,1); - if ($blocked) { - my $checkrole = "cm./$cdom/$cnum"; - if ($env{'request.course.sec'} ne '') { - $checkrole .= "/$env{'request.course.sec'}"; - } - unless ((&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) && - ($env{'request.role'} !~ m{^st\./$cdom/$cnum})) { - return; - } - } - } - my @what=&Apache::lonnet::dump('critical', $env{'user.domain'}, + my @what=&Apache::lonnet::dump('critical', $env{'user.domain'}, $env{'user.name'}); &Apache::lonnet::appenv({'user.criticalcheck.time'=>time}); my $redirecturl; if ($what[0]) { - if (($what[0] ne 'con_lost') && ($what[0] ne 'no_such_host') && ($what[0]!~/^error\:/)) { - $redirecturl='/adm/email?critical=display'; - my $url=&Apache::lonnet::absolute_url().$redirecturl; + if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { + $redirecturl='/adm/email?critical=display'; + my $url=&Apache::lonnet::absolute_url().$redirecturl; return (1, $url); } } - } + } return (); } @@ -18334,342 +17271,6 @@ sub des_decrypt { return $plaintext; } -sub get_requested_shorturls { - my ($cdom,$cnum,$navmap) = @_; - return unless (ref($navmap)); - my ($numnew,$errors); - my @toshorten = &Apache::loncommon::get_env_multiple('form.addtiny'); - if (@toshorten) { - my (%maps,%resources,%titles); - &Apache::loncourserespicker::enumerate_course_contents($navmap,\%maps,\%resources,\%titles, - 'shorturls',$cdom,$cnum); - if (keys(%resources)) { - my %tocreate; - foreach my $item (sort {$a <=> $b} (@toshorten)) { - my $symb = $resources{$item}; - if ($symb) { - $tocreate{$cnum.'&'.$symb} = 1; - } - } - if (keys(%tocreate)) { - ($numnew,$errors) = &make_short_symbs($cdom,$cnum, - \%tocreate); - } - } - } - return ($numnew,$errors); -} - -sub make_short_symbs { - my ($cdom,$cnum,$tocreateref,$lockuser) = @_; - my ($numnew,@errors); - if (ref($tocreateref) eq 'HASH') { - my %tocreate = %{$tocreateref}; - if (keys(%tocreate)) { - my %coursetiny = &Apache::lonnet::dump('tiny',$cdom,$cnum); - my $su = Short::URL->new(no_vowels => 1); - my $init = ''; - my (%newunique,%addcourse,%courseonly,%failed); - # get lock on tiny db - my $now = time; - if ($lockuser eq '') { - $lockuser = $env{'user.name'}.':'.$env{'user.domain'}; - } - my $lockhash = { - "lock\0$now" => $lockuser, - }; - my $tries = 0; - my $gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom); - my ($code,$error); - while (($gotlock ne 'ok') && ($tries<3)) { - $tries ++; - sleep 1; - $gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom); - } - if ($gotlock eq 'ok') { - $init = &shorten_symbs($cdom,$init,$su,\%coursetiny,\%tocreate,\%newunique, - \%addcourse,\%courseonly,\%failed); - if (keys(%failed)) { - my $numfailed = scalar(keys(%failed)); - push(@errors,&mt('error: could not obtain unique six character URL for [quant,_1,resource]',$numfailed)); - } - if (keys(%newunique)) { - my $putres = &Apache::lonnet::newput_dom('tiny',\%newunique,$cdom); - if ($putres eq 'ok') { - $numnew = scalar(keys(%newunique)); - my $newputres = &Apache::lonnet::newput('tiny',\%addcourse,$cdom,$cnum); - unless ($newputres eq 'ok') { - push(@errors,&mt('error: could not store course look-up of short URLs')); - } - } else { - push(@errors,&mt('error: could not store unique six character URLs')); - } - } - my $dellockres = &Apache::lonnet::del_dom('tiny',["lock\0$now"],$cdom); - unless ($dellockres eq 'ok') { - push(@errors,&mt('error: could not release lockfile')); - } - } else { - push(@errors,&mt('error: could not obtain lockfile')); - } - if (keys(%courseonly)) { - my $result = &Apache::lonnet::newput('tiny',\%courseonly,$cdom,$cnum); - if ($result ne 'ok') { - push(@errors,&mt('error: could not update course look-up of short URLs')); - } - } - } - } - return ($numnew,\@errors); -} - -sub shorten_symbs { - my ($cdom,$init,$su,$coursetiny,$tocreate,$newunique,$addcourse,$courseonly,$failed) = @_; - return unless ((ref($su)) && (ref($coursetiny) eq 'HASH') && (ref($tocreate) eq 'HASH') && - (ref($newunique) eq 'HASH') && (ref($addcourse) eq 'HASH') && - (ref($courseonly) eq 'HASH') && (ref($failed) eq 'HASH')); - my (%possibles,%collisions); - foreach my $key (keys(%{$tocreate})) { - my $num = String::CRC32::crc32($key); - my $tiny = $su->encode($num,$init); - if ($tiny) { - $possibles{$tiny} = $key; - } - } - if (!$init) { - $init = 1; - } else { - $init ++; - } - if (keys(%possibles)) { - my @posstiny = keys(%possibles); - my $configuname = &Apache::lonnet::get_domainconfiguser($cdom); - my %currtiny = &Apache::lonnet::get('tiny',\@posstiny,$cdom,$configuname); - if (keys(%currtiny)) { - foreach my $key (keys(%currtiny)) { - next if ($currtiny{$key} eq ''); - if ($currtiny{$key} eq $possibles{$key}) { - my ($tcnum,$tsymb) = split(/\&/,$currtiny{$key}); - unless (($coursetiny->{$tsymb} eq $key) || ($addcourse->{$tsymb} eq $key) || ($courseonly->{$tsymb} eq $key)) { - $courseonly->{$tsymb} = $key; - } - } else { - $collisions{$possibles{$key}} = 1; - } - delete($possibles{$key}); - } - } - foreach my $key (keys(%possibles)) { - $newunique->{$key} = $possibles{$key}; - my ($tcnum,$tsymb) = split(/\&/,$possibles{$key}); - unless (($coursetiny->{$tsymb} eq $key) || ($addcourse->{$tsymb} eq $key) || ($courseonly->{$tsymb} eq $key)) { - $addcourse->{$tsymb} = $key; - } - } - } - if (keys(%collisions)) { - if ($init <5) { - if (!$init) { - $init = 1; - } else { - $init ++; - } - $init = &shorten_symbs($cdom,$init,$su,$coursetiny,\%collisions, - $newunique,$addcourse,$courseonly,$failed); - } else { - foreach my $key (keys(%collisions)) { - $failed->{$key} = 1; - $failed->{$key} = 1; - } - } - } - return $init; -} - -sub is_nonframeable { - my ($url,$absolute,$hostname,$ip,$nocache) = @_; - my ($remprotocol,$remhost) = ($url =~ m{^(https?)\://(([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,})}i); - return if (($remprotocol eq '') || ($remhost eq '')); - - $remprotocol = lc($remprotocol); - $remhost = lc($remhost); - my $remport = 80; - if ($remprotocol eq 'https') { - $remport = 443; - } - my ($result,$cached) = &Apache::lonnet::is_cached_new('noiframe',$remhost.':'.$remport); - if ($cached) { - unless ($nocache) { - if ($result) { - return 1; - } else { - return 0; - } - } - } - my $uselink; - my $request = new HTTP::Request('HEAD',$url); - my $ua = LWP::UserAgent->new; - $ua->timeout(5); - my $response=$ua->request($request); - if ($response->is_success()) { - my $secpolicy = lc($response->header('content-security-policy')); - my $xframeop = lc($response->header('x-frame-options')); - $secpolicy =~ s/^\s+|\s+$//g; - $xframeop =~ s/^\s+|\s+$//g; - if (($secpolicy ne '') || ($xframeop ne '')) { - my $remotehost = $remprotocol.'://'.$remhost; - my ($origin,$protocol,$port); - if ($ENV{'SERVER_PORT'} =~/^\d+$/) { - $port = $ENV{'SERVER_PORT'}; - } else { - $port = 80; - } - if ($absolute eq '') { - $protocol = 'http:'; - if ($port == 443) { - $protocol = 'https:'; - } - $origin = $protocol.'//'.lc($hostname); - } else { - $origin = lc($absolute); - ($protocol,$hostname) = ($absolute =~ m{^(https?:)//([^/]+)$}); - } - if (($secpolicy) && ($secpolicy =~ /\Qframe-ancestors\E([^;]*)(;|$)/)) { - my $framepolicy = $1; - $framepolicy =~ s/^\s+|\s+$//g; - my @policies = split(/\s+/,$framepolicy); - if (@policies) { - if (grep(/^\Q'none'\E$/,@policies)) { - $uselink = 1; - } else { - $uselink = 1; - if ((grep(/^\Q*\E$/,@policies)) || (grep(/^\Q$protocol\E$/,@policies)) || - (($origin ne '') && (grep(/^\Q$origin\E$/,@policies))) || - (($ip ne '') && (grep(/^\Q$ip\E$/,@policies)))) { - undef($uselink); - } - if ($uselink) { - if (grep(/^\Q'self'\E$/,@policies)) { - if (($origin ne '') && ($remotehost eq $origin)) { - undef($uselink); - } - } - } - if ($uselink) { - my @possok; - if ($ip ne '') { - push(@possok,$ip); - } - my $hoststr = ''; - foreach my $part (reverse(split(/\./,$hostname))) { - if ($hoststr eq '') { - $hoststr = $part; - } else { - $hoststr = "$part.$hoststr"; - } - if ($hoststr eq $hostname) { - push(@possok,$hostname); - } else { - push(@possok,"*.$hoststr"); - } - } - if (@possok) { - foreach my $poss (@possok) { - last if (!$uselink); - foreach my $policy (@policies) { - if ($policy =~ m{^(\Q$protocol\E//|)\Q$poss\E(\Q:$port\E|)$}) { - undef($uselink); - last; - } - } - } - } - } - } - } - } elsif ($xframeop ne '') { - $uselink = 1; - my @policies = split(/\s*,\s*/,$xframeop); - if (@policies) { - unless (grep(/^deny$/,@policies)) { - if ($origin ne '') { - if (grep(/^sameorigin$/,@policies)) { - if ($remotehost eq $origin) { - undef($uselink); - } - } - if ($uselink) { - foreach my $policy (@policies) { - if ($policy =~ /^allow-from\s*(.+)$/) { - my $allowfrom = $1; - if (($allowfrom ne '') && ($allowfrom eq $origin)) { - undef($uselink); - last; - } - } - } - } - } - } - } - } - } - } - if ($nocache) { - if ($cached) { - my $devalidate; - if ($uselink && !$result) { - $devalidate = 1; - } elsif (!$uselink && $result) { - $devalidate = 1; - } - if ($devalidate) { - &Apache::lonnet::devalidate_cache_new('noiframe',$remhost.':'.$remport); - } - } - } else { - if ($uselink) { - $result = 1; - } else { - $result = 0; - } - &Apache::lonnet::do_cache_new('noiframe',$remhost.':'.$remport,$result,3600); - } - return $uselink; -} - -sub page_menu { - my ($menucolls,$menunum) = @_; - my %menu; - foreach my $item (split(/;/,$menucolls)) { - my ($num,$value) = split(/\%/,$item); - if ($num eq $menunum) { - my @entries = split(/\&/,$value); - foreach my $entry (@entries) { - my ($name,$fields) = split(/=/,$entry); - if (($name eq 'top') || ($name eq 'inline') || ($name eq 'foot') || ($name eq 'main')) { - $menu{$name} = $fields; - } else { - my @shown; - if ($fields =~ /,/) { - @shown = split(/,/,$fields); - } else { - @shown = ($fields); - } - if (@shown) { - foreach my $field (@shown) { - next if ($field eq ''); - $menu{$field} = 1; - } - } - } - } - } - } - return %menu; -} - 1; __END__;