--- loncom/interface/loncommon.pm 2008/03/18 23:00:51 1.636.2.3 +++ loncom/interface/loncommon.pm 2008/12/04 08:56:28 1.705 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # a pile of common routines # -# $Id: loncommon.pm,v 1.636.2.3 2008/03/18 23:00:51 raeburn Exp $ +# $Id: loncommon.pm,v 1.705 2008/12/04 08:56:28 tempelho Exp $ # # Copyright Michigan State University Board of Trustees # @@ -61,12 +61,15 @@ use POSIX qw(strftime mktime); use Apache::lonmenu(); use Apache::lonenc(); use Apache::lonlocal; +use Apache::lonnet(); use HTML::Entities; use Apache::lonhtmlcommon(); use Apache::loncoursedata(); use Apache::lontexconvert(); use Apache::lonclonecourse(); use LONCAPA qw(:DEFAULT :match); +use DateTime::TimeZone; +use DateTime::Locale::Catalog; # ---------------------------------------------- Designs use vars qw(%defaultdesign); @@ -78,6 +81,76 @@ my $readit; ## Global Variables ## + +# ----------------------------------------------- SSI with retries: +# + +=pod + +=head1 Server Side include with retries: + +=over 4 + +=item * &ssi_with_retries(resource,retries form) + +Performs an ssi with some number of retries. Retries continue either +until the result is ok or until the retry count supplied by the +caller is exhausted. + +Inputs: + +=over 4 + +resource - Identifies the resource to insert. + +retries - Count of the number of retries allowed. + +form - Hash that identifies the rendering options. + +=back + +Returns: + +=over 4 + +content - The content of the response. If retries were exhausted this is empty. + +response - The response from the last attempt (which may or may not have been successful. + +=back + +=back + +=cut + +sub ssi_with_retries { + my ($resource, $retries, %form) = @_; + + + my $ok = 0; # True if we got a good response. + my $content; + my $response; + + # Try to get the ssi done. within the retries count: + + do { + ($content, $response) = &Apache::lonnet::ssi($resource, %form); + $ok = $response->is_success; + if (!$ok) { + &Apache::lonnet::logthis("Failed ssi_with_retries on $resource: ".$response->is_success.', '.$response->code.', '.$response->message); + } + $retries--; + } while (!$ok && ($retries > 0)); + + if (!$ok) { + $content = ''; # On error return an empty content. + } + return ($content, $response); + +} + + + # ----------------------------------------------- Filetypes/Languages/Copyright my %language; my %supported_language; @@ -198,7 +271,7 @@ BEGIN { } } &Apache::lonnet::logthis( - "INFO: Read file types"); + "INFO: Read file types"); $readit=1; } # end of unless($readit) @@ -214,14 +287,14 @@ BEGIN { =over 4 -=item * browser_and_searcher_javascript () +=item * &browser_and_searcher_javascript() XXReturns a string containing javascript with two functions, C and C. Returned string does not contain EscriptE tags. -=item * openbrowser(formname,elementname,only,omit) [javascript] +=item * &openbrowser(formname,elementname,only,omit) [javascript] inputs: formname, elementname, only, omit @@ -234,7 +307,7 @@ with the given extension. Can be a comm Specifying 'omit' will restrict the browser to NOT displaying files with the given extension. Can be a comma separated list. -=item * opensearcher(formname, elementname) [javascript] +=item * &opensearcher(formname,elementname) [javascript] Inputs: formname, elementname @@ -319,7 +392,7 @@ sub storeresurl { unless ($resurl=~/^\/res/) { return 0; } $resurl=~s/\/$//; &Apache::lonnet::put('environment',{'lastresurl' => $resurl}); - &Apache::lonnet::appenv('environment.lastresurl' => $resurl); + &Apache::lonnet::appenv({'environment.lastresurl' => $resurl}); return 1; } @@ -377,6 +450,25 @@ sub selectstudent_link { return ''; } +sub authorbrowser_javascript { + return <<"ENDAUTHORBRW"; + +ENDAUTHORBRW +} + sub coursebrowser_javascript { my ($domainfilter,$sec_element,$formname)=@_; my $crs_or_grp_alert = &mt('Please select the type of LON-CAPA entity - Course or Group - for which you wish to add/modify a user role'); @@ -514,6 +606,12 @@ sub selectcourse_link { '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select Course').""; } +sub selectauthor_link { + my ($form,$udom)=@_; + return ''. + &mt('Select Author').''; +} + sub check_uncheck_jscript { my $jscript = <<"ENDSCRT"; function checkAll(field) { @@ -539,10 +637,82 @@ ENDSCRT return $jscript; } +sub select_timezone { + my ($name,$selected,$onchange,$includeempty)=@_; + my $output=' menus. The select menus will be linked in that @@ -707,7 +877,7 @@ END =pod -=item * help_open_topic($topic, $text, $stayOnPage, $width, $height) +=item * &help_open_topic($topic,$text,$stayOnPage,$width,$height) Returns a string corresponding to an HTML link to the given help $topic, where $topic corresponds to the name of a .tex file in @@ -756,12 +926,12 @@ sub help_open_topic { if ($text ne "") { $template .= "". - "
$text"; + "$text"; } # Add the graphic my $title = &mt('Online Help'); - my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif"); + my $helpicon=&lonhttpdurl("/adm/help/help.png"); $template .= <<"ENDTEMPLATE"; (Help: $topic) ENDTEMPLATE @@ -787,6 +957,9 @@ sub helpLatexCheatsheet { .''. &Apache::loncommon::help_open_topic("Other_Symbols",&mt('Other Symbols'), undef,undef,600) + .''. + &Apache::loncommon::help_open_topic("Authoring_Output_Tags",&mt('Output Tags'), + undef,undef,600) .'
'; } @@ -796,6 +969,8 @@ sub general_help { $helptopic='Authoring_Intro'; } elsif ($env{'request.role'}=~/^cc/) { $helptopic='Course_Coordination_Intro'; + } elsif ($env{'request.role'}=~/^dc/) { + $helptopic='Domain_Coordination_Intro'; } return $helptopic; } @@ -953,7 +1128,7 @@ sub help_open_bug { { $template .= "". - "
$text"; + "$text"; } # Add the graphic @@ -998,7 +1173,7 @@ sub help_open_faq { { $template .= "". - "'.&Apache::loncommon::end_data_table_row(); + $num++; + } + $upload_output .= &Apache::loncommon::end_data_table().'
+ + + '.&mt('(only files for which a location has been provided will be uploaded)').' + '; + return $upload_output; +} + +sub upload_embedded { + my ($context,$dirpath,$uname,$udom,$dir_root,$url_root,$group,$disk_quota, + $current_disk_usage) = @_; + my $output; + for (my $i=0; $i<$env{'form.number_embedded_items'}; $i++) { + next if (!exists($env{'form.embedded_item_'.$i.'.filename'})); + my $orig_uploaded_filename = + $env{'form.embedded_item_'.$i.'.filename'}; + + $env{'form.embedded_orig_'.$i} = + &unescape($env{'form.embedded_orig_'.$i}); + my ($path,$fname) = + ($env{'form.embedded_orig_'.$i} =~ m{(.*/)([^/]*)}); + # no path, whole string is fname + if (!$fname) { $fname = $env{'form.embedded_orig_'.$i} }; + + $path = $env{'form.currentpath'}.$path; + $fname = &Apache::lonnet::clean_filename($fname); + # See if there is anything left + next if ($fname eq ''); + + # Check if file already exists as a file or directory. + my ($state,$msg); + if ($context eq 'portfolio') { + my $port_path = $dirpath; + if ($group ne '') { + $port_path = "groups/$group/$port_path"; + } + ($state,$msg) = &check_for_upload($path,$fname,$group,'embedded_item_'.$i, + $dir_root,$port_path,$disk_quota, + $current_disk_usage,$uname,$udom); + if ($state eq 'will_exceed_quota' + || $state eq 'file_locked' + || $state eq 'file_exists' ) { + $output .= $msg; + next; + } + } elsif (($context eq 'author') || ($context eq 'testbank')) { + ($state,$msg) = &check_for_existing($path,$fname,'embedded_item_'.$i); + if ($state eq 'exists') { + $output .= $msg; + next; + } + } + # Check if extension is valid + if (($fname =~ /\.(\w+)$/) && + (&Apache::loncommon::fileembstyle($1) eq 'hdn')) { + $output .= &mt('Invalid file extension ([_1]) - reserved for LONCAPA use - rename the file with a different extension and re-upload. ',$1); + next; + } elsif (($fname =~ /\.(\w+)$/) && + (!defined(&Apache::loncommon::fileembstyle($1)))) { + $output .= &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1); + next; + } elsif ($fname=~/\.(\d+)\.(\w+)$/) { + $output .= &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2); + next; + } + + $env{'form.embedded_item_'.$i.'.filename'}=$fname; + if ($context eq 'portfolio') { + my $result= + &Apache::lonnet::userfileupload('embedded_item_'.$i,'', + $dirpath.$path); + if ($result !~ m|^/uploaded/|) { + $output .= '' + .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].' + ,$result,$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}) + .'
'; + next; + } else { + $output .= '

'.&mt('Uploaded [_1]',''. + $path.$fname.'').'

'; + } + } else { +# Save the file + my $target = $env{'form.embedded_item_'.$i}; + my $fullpath = $dir_root.$dirpath.'/'.$path; + my $dest = $fullpath.$fname; + my $url = $url_root.$dirpath.'/'.$path.$fname; + my @parts=split(/\//,$fullpath); + my $count; + my $filepath = $dir_root; + for ($count=4;$count<=$#parts;$count++) { + $filepath .= "/$parts[$count]"; + if ((-e $filepath)!=1) { + mkdir($filepath,0770); + } + } + my $fh; + if (!open($fh,'>'.$dest)) { + &Apache::lonnet::logthis('Failed to create '.$dest); + $output .= ''. + &mt('An error occurred while trying to upload [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}). + '
'; + } else { + if (!print $fh $env{'form.embedded_item_'.$i}) { + &Apache::lonnet::logthis('Failed to write to '.$dest); + $output .= ''. + &mt('An error occurred while writing the file [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}). + '
'; + } else { + if ($context eq 'testbank') { + $output .= &mt('Embedded file uploaded successfully:'). + ' '. + $orig_uploaded_filename.'
'; + } else { + $output .= ''. + &mt('View embedded file: [_1]',''. + $orig_uploaded_filename.'').'
'; + } + } + close($fh); + } + } + } + return $output; +} + +sub check_for_existing { + my ($path,$fname,$element) = @_; + my ($state,$msg); + if (-d $path.'/'.$fname) { + $state = 'exists'; + $msg = &mt('Unable to upload [_1]. A directory by that name was found in [_2].',''.$fname.'',$path); + } elsif (-e $path.'/'.$fname) { + $state = 'exists'; + $msg = &mt('Unable to upload [_1]. A file by that name was found in [_2].',''.$fname.'',$path); + } + if ($state eq 'exists') { + $msg = ''.$msg.'
'; + } + return ($state,$msg); +} + +sub check_for_upload { + my ($path,$fname,$group,$element,$portfolio_root,$port_path, + $disk_quota,$current_disk_usage,$uname,$udom) = @_; + my $filesize = (length($env{'form.'.$element})) / 1000; #express in k (1024?) + my $getpropath = 1; + my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$path,$udom,$uname, + $getpropath); + my $found_file = 0; + my $locked_file = 0; + foreach my $line (@dir_list) { + my ($file_name)=split(/\&/,$line,2); + if ($file_name eq $fname){ + $file_name = $path.$file_name; + if ($group ne '') { + $file_name = $group.$file_name; + } + $found_file = 1; + if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') { + $locked_file = 1; + } + } + } + if (($current_disk_usage + $filesize) > $disk_quota){ + my $msg = ''. + &mt('Unable to upload [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.',''.$fname.'',$filesize).''. + '
'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',$disk_quota,$current_disk_usage); + return ('will_exceed_quota',$msg); + } elsif ($found_file) { + if ($locked_file) { + my $msg = ''; + $msg .= &mt('Unable to upload [_1]. A locked file by that name was found in [_2].',''.$fname.'',''.$port_path.$env{'form.currentpath'}.''); + $msg .= '
'; + $msg .= &mt('You will be able to rename or delete existing [_1] after a grade has been assigned.',''.$fname.''); + return ('file_locked',$msg); + } else { + my $msg = ''; + $msg .= &mt('Unable to upload [_1]. A file by that name was found in [_2].',''.$fname.'',$port_path.$env{'form.currentpath'}); + $msg .= ''; + $msg .= '
'; + $msg .= &mt('To upload, rename or delete existing [_1] in [_2].',''.$fname.'', $port_path.$env{'form.currentpath'}); + return ('file_exists',$msg); + } + } +} + =pod @@ -6841,7 +7708,7 @@ sub get_env_multiple { =over 4 -=item * upfile_store($r) +=item * &upfile_store($r) Store uploaded file, $r should be the HTTP Request object, needs $env{'form.upfile'} @@ -6871,7 +7738,7 @@ sub upfile_store { =pod -=item * load_tmp_file($r) +=item * &load_tmp_file($r) Load uploaded file from tmp, $r should be the HTTP Request object, needs $env{'form.datatoken'}, @@ -6895,7 +7762,7 @@ sub load_tmp_file { =pod -=item * upfile_record_sep() +=item * &upfile_record_sep() Separate uploaded file into records returns array of records, @@ -6917,7 +7784,7 @@ sub upfile_record_sep { =pod -=item * record_sep($record) +=item * &record_sep($record) Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'} @@ -7002,7 +7869,7 @@ sub record_sep { =pod -=item * upfile_select_html() +=item * &upfile_select_html() Return HTML code to select a file from the users machine and specify the file type. @@ -7049,7 +7916,7 @@ sub get_samples { =pod -=item * csv_print_samples($r,$records) +=item * &csv_print_samples($r,$records) Prints a table of sample values from each column uploaded $r is an Apache Request ref, $records is an arrayref from @@ -7061,7 +7928,7 @@ Apache Request ref, $records is an array ###################################################### sub csv_print_samples { my ($r,$records) = @_; - my $samples = &get_samples($records,3); + my $samples = &get_samples($records,5); $r->print(&mt('Samples').'
'.&start_data_table(). &start_data_table_header_row()); @@ -7085,7 +7952,7 @@ sub csv_print_samples { =pod -=item * csv_print_select_table($r,$records,$d) +=item * &csv_print_select_table($r,$records,$d) Prints a table to create associations between values and table columns. @@ -7116,7 +7983,7 @@ sub csv_print_select_table { foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) { $r->print(''); + '>'.&mt('Column [_1]',($sample+1)).''); } $r->print(''.&end_data_table_row()."\n"); $i++; @@ -7131,7 +7998,7 @@ sub csv_print_select_table { =pod -=item * csv_samples_select_table($r,$records,$d) +=item * &csv_samples_select_table($r,$records,$d) Prints a table of sample values from the upload and can make associate samples to internal names. @@ -7147,7 +8014,8 @@ sub csv_samples_select_table { my ($r,$records,$d) = @_; my $i=0; # - my $samples = &get_samples($records,3); + my $max_samples = 5; + my $samples = &get_samples($records,$max_samples); $r->print(&start_data_table(). &start_data_table_header_row().''. @@ -7163,7 +8031,7 @@ sub csv_samples_select_table { $display.''); } $r->print(''; + my $depth = 1; + push(@path,$parent); + $output .= &assign_category_rows($itemcount,\@cats,$depth,$parent,\@path,\@currcategories); + pop(@path); + $output .= ''; + $itemcount ++; + } + $output .= &Apache::loncommon::end_data_table(); + } + } + } + return $output; +} + +=pod + +=item *&assign_category_rows() + +Create a datatable row for display of nested categories in a domain, +with checkboxes to allow a course to be categorized,called recursively. + +Inputs: + +itemcount - track row number for alternating colors + +cats - reference to array of arrays/hashes which encapsulates hierarchy of + categories and subcategories. + +depth - current depth in hierarchy of categories and sub-categories - 0 indexed. + +parent - parent of current category item + +path - Array containing all categories back up through the hierarchy from the + current category to the top level. + +currcategories - reference to array of current categories assigned to the course + +Returns: $output (markup to be displayed). + +=cut + +sub assign_category_rows { + my ($itemcount,$cats,$depth,$parent,$path,$currcategories) = @_; + my ($text,$name,$item,$chgstr); + if (ref($cats) eq 'ARRAY') { + my $maxdepth = scalar(@{$cats}); + if (ref($cats->[$depth]) eq 'HASH') { + if (ref($cats->[$depth]{$parent}) eq 'ARRAY') { + my $numchildren = @{$cats->[$depth]{$parent}}; + my $css_class = $itemcount%2?' class="LC_odd_row"':''; + $text .= ''; + } + } + } + return $text; +} + +############################################################ +############################################################ + + sub commit_customrole { - my ($udom,$uname,$url,$three,$four,$five,$start,$end) = @_; + my ($udom,$uname,$url,$three,$four,$five,$start,$end,$context) = @_; my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.':'.$three.' in '.$url. ($start?', '.&mt('starting').' '.localtime($start):''). ($end?', ending '.localtime($end):'').': '. &Apache::lonnet::assigncustomrole( - $udom,$uname,$url,$three,$four,$five,$end,$start). + $udom,$uname,$url,$three,$four,$five,$end,$start,undef,undef,$context). '
'; return $output; } @@ -7866,7 +9072,7 @@ sub commit_standardrole { $output = &mt('Assigning').' '.$three.' in '.$url. ($start?', '.&mt('starting').' '.localtime($start):''). ($end?', '.&mt('ending').' '.localtime($end):'').': '; - my $result = &Apache::lonnet::assignrole($udom,$uname,$url,$three,$end,$start); + my $result = &Apache::lonnet::assignrole($udom,$uname,$url,$three,$end,$start,'','',$context); if ($context eq 'auto') { $output .= $result.$linefeed; } else { @@ -7901,7 +9107,7 @@ sub commit_studentrole { } $oldsecurl = $uurl; $expire_role_result = - &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now); + &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,'','',$context); if ($env{'request.course.sec'} ne '') { if ($expire_role_result eq 'refused') { my @roles = ('st'); @@ -7924,7 +9130,7 @@ sub commit_studentrole { } } if (($expire_role_result eq 'ok') || ($secchange == 0)) { - $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid); + $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid,'',$context); if ($modify_section_result =~ /^ok/) { if ($secchange == 1) { if ($sec eq '') { @@ -8087,7 +9293,7 @@ sub construct_course { $outcome .= $clonemsg.$linefeed; my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum); # Copy all files - &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid); + &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},$args->{'dateshift'}); # Restore URL $cenv{'url'}=$oldcenv{'url'}; # Restore title @@ -8134,7 +9340,6 @@ sub construct_course { } else { $cenv{'internal.courseowner'} = $args->{'curruser'}; } - my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner. if ($args->{'crssections'}) { $cenv{'internal.sectionnums'} = ''; @@ -8334,10 +9539,10 @@ sub construct_course { $outcome .= ($fatal?$errtext:'read ok').' - '; my $title; my $url; if ($args->{'firstres'} eq 'syl') { - $title='Syllabus'; + $title=&mt('Syllabus'); $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus'; } else { - $title='Navigate Contents'; + $title=&mt('Navigate Contents'); $url='/adm/navmaps'; } @@ -8391,28 +9596,14 @@ sub icon { return &lonhttpdurl($iconname); } -sub lonhttpd_port { - my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'}; - if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; } - # IE doesn't like a secure page getting images from a non-secure - # port (when logging we haven't parsed the browser type so default - # back to secure - if ((!exists($env{'browser.type'}) || $env{'browser.type'} eq 'explorer') - && $ENV{'SERVER_PORT'} == 443) { - return 443; - } - return $lonhttpd_port; - -} - sub lonhttpdurl { +# +# Had been used for "small fry" static images on separate port 8080. +# Modify here if lightweight http functionality desired again. +# Currently eliminated due to increasing firewall issues. +# my ($url)=@_; - - my $lonhttpd_port = &lonhttpd_port(); - if ($lonhttpd_port == 443) { - return 'https://'.$ENV{'SERVER_NAME'}.$url; - } - return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url; + return $url; } sub connection_aborted { @@ -8490,7 +9681,7 @@ sub init_user_environment { } # Give them a new cookie my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'} - : $now); + : $now.$$.int(rand(10000))); $cookie="$username\_$id\_$domain\_$authhost"; # Initialize roles @@ -8590,8 +9781,8 @@ sub init_user_environment { } untie(%disk_env); } else { - &Apache::lonnet::logthis("WARNING: ". - 'Could not create environment storage in lonauth: '.$!.''); + &Apache::lonnet::logthis("WARNING: ". + 'Could not create environment storage in lonauth: '.$!.''); return 'error: '.$!; } } @@ -8605,12 +9796,52 @@ sub init_user_environment { sub _add_to_env { my ($idf,$env_data,$prefix) = @_; - while (my ($key,$value) = each(%$env_data)) { - $idf->{$prefix.$key} = $value; - $env{$prefix.$key} = $value; + if (ref($env_data) eq 'HASH') { + while (my ($key,$value) = each(%$env_data)) { + $idf->{$prefix.$key} = $value; + $env{$prefix.$key} = $value; + } + } +} + +# --- Get the symbolic name of a problem and the url +sub get_symb { + my ($request,$silent) = @_; + (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--; + my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url))); + if ($symb eq '') { + if (!$silent) { + $request->print("Unable to handle ambiguous references:$url:."); + return (); + } } + &Apache::lonenc::check_decrypt(\$symb); + return ($symb); } +# --------------------------------------------------------------Get annotation + +sub get_annotation { + my ($symb,$enc) = @_; + + my $key = $symb; + if (!$enc) { + $key = + &Apache::lonnet::clutter((&Apache::lonnet::decode_symb($symb))[2]); + } + my %annotation=&Apache::lonnet::get('nohist_annotations',[$key]); + return $annotation{$key}; +} + +sub clean_symb { + my ($symb) = @_; + + &Apache::lonenc::check_decrypt(\$symb); + my $enc = $env{'request.enc'}; + delete($env{'request.enc'}); + + return ($symb,$enc); +} =pod
$text"; + "$text"; } # Add the graphic @@ -1017,7 +1192,7 @@ ENDTEMPLATE =pod -=item * change_content_javascript(): +=item * &change_content_javascript(): This and the next function allow you to create small sections of an otherwise static HTML page that you can update on the fly with @@ -1072,7 +1247,7 @@ DOMBASED =pod -=item * changable_area($name, $origContent): +=item * &changable_area($name,$origContent): This provides a "changable area" that can be modified on the fly via the Javascript code provided in C. $name is @@ -1096,7 +1271,7 @@ sub changable_area { =pod -=item * viewport_geometry_js { +=item * &viewport_geometry_js Provides javascript object (Geometry) which can provide information about the viewport geometry for the client browser. @@ -1143,7 +1318,7 @@ GEOMETRY =pod -=item * viewport_size_js { +=item * &viewport_size_js() Provides a javascript function to set values of two form elements - width and height (elements are passed in as arguments to the javascript function) to the dimensions of the user's browser window. @@ -1167,7 +1342,7 @@ DIMS =pod -=item * resize_textarea_js +=item * &resize_textarea_js() emits the needed javascript to resize a textarea to be as big as possible @@ -1176,6 +1351,7 @@ the id of the element to resize, second surrounds everything that comes after the textarea, this routine needs to be attached to the for the onload and onresize events. +=back =cut @@ -1228,8 +1404,6 @@ RESIZE =pod -=back - =head1 Excel and CSV file utility routines =over 4 @@ -1241,7 +1415,7 @@ RESIZE =pod -=item * csv_translate($text) +=item * &csv_translate($text) Translate $text to allow it to be output as a 'comma separated values' format. @@ -1262,7 +1436,7 @@ sub csv_translate { =pod -=item * define_excel_formats +=item * &define_excel_formats() Define some commonly used Excel cell formats. @@ -1318,7 +1492,7 @@ sub define_excel_formats { =pod -=item * create_workbook +=item * &create_workbook() Create an Excel worksheet. If it fails, output message on the request object and return undefs. @@ -1361,7 +1535,7 @@ sub create_workbook { =pod -=item * create_text_file +=item * &create_text_file() Create a file to write to and eventually make available to the user. If file creation fails, outputs an error message on the request object and @@ -1386,9 +1560,9 @@ sub create_text_file { $fh = Apache::File->new('>/home/httpd'.$filename); if (! defined($fh)) { $r->log_error("Couldn't open $filename for output $!"); - $r->print("Problems occured in creating the output file. ". - "This error has been logged. ". - "Please alert your LON-CAPA administrator."); + $r->print(&mt('Problems occurred in creating the output file. ' + .'This error has been logged. ' + .'Please alert your LON-CAPA administrator.')); } return ($fh,$filename) } @@ -1429,7 +1603,7 @@ sub domain_select { =over 4 -=item * multiple_select_form($name,$value,$size,$hash,$order) +=item * &multiple_select_form($name,$value,$size,$hash,$order) Returns a string containing a form to allow a user to select options from a hash option_name => displayed text. @@ -1566,7 +1740,7 @@ sub select_level_form { =pod -=item * select_dom_form($defdom,$name,$includeempty,$showdomdesc) +=item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc) Returns a string containing a '.$embed_file.''; + if ($args->{'ignore_remote_references'} + && $embed_file =~ m{^\w+://}) { + $upload_output.=''.&mt("URL points to other server.").''; + } elsif ($args->{'error_on_invalid_names'} + && $embed_file ne &Apache::lonnet::clean_filename($embed_file,{'keep_path' => 1,})) { + + $upload_output.=''.&mt("Invalid characters").''; + + } else { + $upload_output .=' + + '; + my $attrib = join(':',@{$$allfiles{$embed_file}}); + $upload_output .= + "\n\t\t". + ''; + if (exists($$codebase{$embed_file})) { + $upload_output .= + "\n\t\t". + ''; + } + } + $upload_output .= ''. &mt('Field').''.&mt('Samples').''); - foreach my $line (0..2) { + foreach my $line (0..($max_samples-1)) { if (defined($samples->[$line]{$key})) { $r->print($samples->[$line]{$key}."
\n"); } @@ -7181,7 +8049,7 @@ sub csv_samples_select_table { =pod -=item clean_excel_name($name) +=item * &clean_excel_name($name) Returns a replacement for $name which does not contain any illegal characters. @@ -7200,7 +8068,7 @@ sub clean_excel_name { =pod -=item * check_if_partid_hidden($id,$symb,$udom,$uname) +=item * &check_if_partid_hidden($id,$symb,$udom,$uname) Returns either 1 or undef @@ -7241,7 +8109,7 @@ sub check_if_partid_hidden { =over 4 -=item get_cgi_id +=item * &get_cgi_id() Inputs: none @@ -7265,7 +8133,7 @@ sub get_cgi_id { =pod -=item DrawBarGraph +=item * &DrawBarGraph() Facilitates the plotting of data in a (stacked) bar graph. Puts plot definition data into the users environment in order for @@ -7400,7 +8268,7 @@ sub DrawBarGraph { $ValuesHash{$id.'.'.$key} = $value; } # - &Apache::lonnet::appenv(%ValuesHash); + &Apache::lonnet::appenv(\%ValuesHash); return ''; } @@ -7409,7 +8277,7 @@ sub DrawBarGraph { =pod -=item DrawXYGraph +=item * &DrawXYGraph() Facilitates the plotting of data in an XY graph. Puts plot definition data into the users environment in order for @@ -7490,7 +8358,7 @@ sub DrawXYGraph { $ValuesHash{$id.'.'.$key} = $value; } # - &Apache::lonnet::appenv(%ValuesHash); + &Apache::lonnet::appenv(\%ValuesHash); return ''; } @@ -7499,7 +8367,7 @@ sub DrawXYGraph { =pod -=item DrawXYYGraph +=item * &DrawXYYGraph() Facilitates the plotting of data in an XY graph with two Y axes. Puts plot definition data into the users environment in order for @@ -7592,7 +8460,7 @@ sub DrawXYYGraph { $ValuesHash{$id.'.'.$key} = $value; } # - &Apache::lonnet::appenv(%ValuesHash); + &Apache::lonnet::appenv(\%ValuesHash); return ''; } @@ -7609,7 +8477,7 @@ Bad place for them but what the hell. =over 4 -=item &chartlink +=item * &chartlink() Returns a link to the chart for a specific student. @@ -7648,9 +8516,9 @@ sub chartlink { =over 4 -=item &restore_course_settings +=item * &restore_course_settings() -=item &store_course_settings +=item * &store_course_settings() Restores/Store indicated form parameters from the course environment. Will not overwrite existing values of the form parameters. @@ -7724,7 +8592,7 @@ sub store_settings { 'got error:'.$put_result); } # Make sure these settings stick around in this session, too - &Apache::lonnet::appenv(%AppHash); + &Apache::lonnet::appenv(\%AppHash); return; } @@ -7761,7 +8629,7 @@ sub restore_settings { =over 4 -=item &build_recipient_list +=item * &build_recipient_list() Build recipient lists for three types of e-mail: (a) Error Reports, (b) Package Updates, (c) Help requests, generated by @@ -7774,7 +8642,9 @@ defdom (domain for which to retrieve con origmail (scalar - email address of recipient from loncapa.conf, i.e., predates configuration by DC via domainprefs.pm -Returns: comma separated list of addresses to which to send e-mail. +Returns: comma separated list of addresses to which to send e-mail. + +=back =cut @@ -7802,8 +8672,10 @@ sub build_recipient_list { } elsif ($origmail ne '') { push(@recipients,$origmail); } - if ($defmail ne '') { - push(@recipients,$defmail); + if (defined($defmail)) { + if ($defmail ne '') { + push(@recipients,$defmail); + } } if ($otheremails) { my @others; @@ -7825,13 +8697,347 @@ sub build_recipient_list { ############################################################ ############################################################ +=pod + +=head1 Course Catalog Routines + +=over 4 + +=item * &gather_categories() + +Converts category definitions - keys of categories hash stored in +coursecategories in configuration.db on the primary library server in a +domain - to an array. Also generates javascript and idx hash used to +generate Domain Coordinator interface for editing Course Categories. + +Inputs: + +categories (reference to hash of category definitions). + +cats (reference to array of arrays/hashes which encapsulates hierarchy of + categories and subcategories). + +idx (reference to hash of counters used in Domain Coordinator interface for + editing Course Categories). + +jsarray (reference to array of categories used to create Javascript arrays for + Domain Coordinator interface for editing Course Categories). + +Returns: nothing + +Side effects: populates cats, idx and jsarray. + +=cut + +sub gather_categories { + my ($categories,$cats,$idx,$jsarray) = @_; + my %counters; + my $num = 0; + foreach my $item (keys(%{$categories})) { + my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item); + if ($container eq '' && $depth == 0) { + $cats->[$depth][$categories->{$item}] = $cat; + } else { + $cats->[$depth]{$container}[$categories->{$item}] = $cat; + } + my ($escitem,$tail) = split(/:/,$item,2); + if ($counters{$tail} eq '') { + $counters{$tail} = $num; + $num ++; + } + if (ref($idx) eq 'HASH') { + $idx->{$item} = $counters{$tail}; + } + if (ref($jsarray) eq 'ARRAY') { + push(@{$jsarray->[$counters{$tail}]},$item); + } + } + return; +} + +=pod + +=item * &extract_categories() + +Used to generate breadcrumb trails for course categories. + +Inputs: + +categories (reference to hash of category definitions). + +cats (reference to array of arrays/hashes which encapsulates hierarchy of + categories and subcategories). + +trails (reference to array of breacrumb trails for each category). + +allitems (reference to hash - key is category key + (format: escaped(name):escaped(parent category):depth in hierarchy). + +idx (reference to hash of counters used in Domain Coordinator interface for + editing Course Categories). + +jsarray (reference to array of categories used to create Javascript arrays for + Domain Coordinator interface for editing Course Categories). + +subcats (reference to hash of arrays containing all subcategories within each + category, -recursive) + +Returns: nothing + +Side effects: populates trails and allitems hash references. + +=cut + +sub extract_categories { + my ($categories,$cats,$trails,$allitems,$idx,$jsarray,$subcats) = @_; + if (ref($categories) eq 'HASH') { + &gather_categories($categories,$cats,$idx,$jsarray); + if (ref($cats->[0]) eq 'ARRAY') { + for (my $i=0; $i<@{$cats->[0]}; $i++) { + my $name = $cats->[0][$i]; + my $item = &escape($name).'::0'; + my $trailstr; + if ($name eq 'instcode') { + $trailstr = &mt('Official courses (with institutional codes)'); + } else { + $trailstr = $name; + } + if ($allitems->{$item} eq '') { + push(@{$trails},$trailstr); + $allitems->{$item} = scalar(@{$trails})-1; + } + my @parents = ($name); + if (ref($cats->[1]{$name}) eq 'ARRAY') { + for (my $j=0; $j<@{$cats->[1]{$name}}; $j++) { + my $category = $cats->[1]{$name}[$j]; + if (ref($subcats) eq 'HASH') { + push(@{$subcats->{$item}},&escape($category).':'.&escape($name).':1'); + } + &recurse_categories($cats,2,$category,$trails,$allitems,\@parents,$subcats); + } + } else { + if (ref($subcats) eq 'HASH') { + $subcats->{$item} = []; + } + } + } + } + } + return; +} + +=pod + +=item *&recurse_categories() + +Recursively used to generate breadcrumb trails for course categories. + +Inputs: + +cats (reference to array of arrays/hashes which encapsulates hierarchy of + categories and subcategories). + +depth (current depth in hierarchy of categories and sub-categories - 0 indexed). + +category (current course category, for which breadcrumb trail is being generated). + +trails (reference to array of breadcrumb trails for each category). + +allitems (reference to hash - key is category key + (format: escaped(name):escaped(parent category):depth in hierarchy). + +parents (array containing containers directories for current category, + back to top level). + +Returns: nothing + +Side effects: populates trails and allitems hash references + +=cut + +sub recurse_categories { + my ($cats,$depth,$category,$trails,$allitems,$parents,$subcats) = @_; + my $shallower = $depth - 1; + if (ref($cats->[$depth]{$category}) eq 'ARRAY') { + for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) { + my $name = $cats->[$depth]{$category}[$k]; + my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower; + my $trailstr = join(' -> ',(@{$parents},$category)); + if ($allitems->{$item} eq '') { + push(@{$trails},$trailstr); + $allitems->{$item} = scalar(@{$trails})-1; + } + my $deeper = $depth+1; + push(@{$parents},$category); + if (ref($subcats) eq 'HASH') { + my $subcat = &escape($name).':'.$category.':'.$depth; + for (my $j=@{$parents}; $j>=0; $j--) { + my $higher; + if ($j > 0) { + $higher = &escape($parents->[$j]).':'. + &escape($parents->[$j-1]).':'.$j; + } else { + $higher = &escape($parents->[$j]).'::'.$j; + } + push(@{$subcats->{$higher}},$subcat); + } + } + &recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents, + $subcats); + pop(@{$parents}); + } + } else { + my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower; + my $trailstr = join(' -> ',(@{$parents},$category)); + if ($allitems->{$item} eq '') { + push(@{$trails},$trailstr); + $allitems->{$item} = scalar(@{$trails})-1; + } + } + return; +} + +=pod + +=item *&assign_categories_table() + +Create a datatable for display of hierarchical categories in a domain, +with checkboxes to allow a course to be categorized. + +Inputs: + +cathash - reference to hash of categories defined for the domain (from + configuration.db) + +currcat - scalar with an & separated list of categories assigned to a course. + +Returns: $output (markup to be displayed) + +=cut + +sub assign_categories_table { + my ($cathash,$currcat) = @_; + my $output; + if (ref($cathash) eq 'HASH') { + my (@cats,@trails,%allitems,%idx,@jsarray,@path,$maxdepth); + &extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray); + $maxdepth = scalar(@cats); + if (@cats > 0) { + my $itemcount = 0; + if (ref($cats[0]) eq 'ARRAY') { + $output = &Apache::loncommon::start_data_table(); + my @currcategories; + if ($currcat ne '') { + @currcategories = split('&',$currcat); + } + for (my $i=0; $i<@{$cats[0]}; $i++) { + my $parent = $cats[0][$i]; + my $css_class = $itemcount%2?' class="LC_odd_row"':''; + next if ($parent eq 'instcode'); + my $item = &escape($parent).'::0'; + my $checked = ''; + if (@currcategories > 0) { + if (grep(/^\Q$item\E$/,@currcategories)) { + $checked = ' checked="checked" '; + } + } + $output .= '
'. + ''.$parent.''. + '
'; + for (my $j=0; $j<$numchildren; $j++) { + $name = $cats->[$depth]{$parent}[$j]; + $item = &escape($name).':'.&escape($parent).':'.$depth; + my $deeper = $depth+1; + my $checked = ''; + if (ref($currcategories) eq 'ARRAY') { + if (@{$currcategories} > 0) { + if (grep(/^\Q$item\E$/,@{$currcategories})) { + $checked = ' checked="checked" '; + } + } + } + $text .= ''; + } + $text .= '
'. + ''. + ''; + if (ref($path) eq 'ARRAY') { + push(@{$path},$name); + $text .= &assign_category_rows($itemcount,$cats,$deeper,$name,$path,$currcategories); + pop(@{$path}); + } + $text .= '