--- loncom/publisher/lonpubdir.pm 2001/07/12 21:23:12 1.10 +++ loncom/publisher/lonpubdir.pm 2008/11/28 16:10:26 1.115 @@ -1,16 +1,31 @@ # The LearningOnline Network with CAPA +# Construction Space Directory Lister # -# (Publication Handler -# -# (TeX Content Handler +# $Id: lonpubdir.pm,v 1.115 2008/11/28 16:10:26 bisitz Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. # -# 05/29/00,05/30,10/11 Gerd Kortemeyer) +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. # -# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer -# 03/23 Guy Albertelli -# 03/24,03/29 Gerd Kortemeyer) +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # -# 03/31,04/03,05/09,06/23 Gerd Kortemeyer +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# +### package Apache::lonpubdir; @@ -19,8 +34,14 @@ use Apache::File; use File::Copy; use Apache::Constants qw(:common :http :methods); use Apache::loncacc; +use Apache::loncommon(); +use Apache::lonhtmlcommon(); +use Apache::londiff(); +use Apache::lonlocal; +use Apache::lonmsg; +use Apache::lonmenu; use Apache::lonnet; - +use LONCAPA; sub handler { @@ -28,13 +49,11 @@ sub handler { my $fn; - if ($ENV{'form.filename'}) { - $fn=$ENV{'form.filename'}; - $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/; - $fn=~s/\/[^\/]+$//; - } else { - $fn=$r->filename(); - } + + + $fn = getEffectiveUrl($r); + + # Validate access to the construction space and get username@domain. my $uname; my $udom; @@ -44,108 +63,848 @@ sub handler { $fn,$r->dir_config('lonDefDomain')); unless (($uname) && ($udom)) { $r->log_reason($uname.' at '.$udom. - ' trying to publish file '.$ENV{'form.filename'}. + ' trying to list directory '.$env{'form.filename'}. ' ('.$fn.') - not authorized', $r->filename); return HTTP_NOT_ACCEPTABLE; } - + + # Remove trailing / from directory name. + $fn=~s/\/$//; unless ($fn) { - $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}. + $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}. ' trying to list empty directory', $r->filename); return HTTP_NOT_FOUND; } # ----------------------------------------------------------- Start page output - - $r->content_type('text/html'); - $r->send_http_header; - - $r->print('LON-CAPA Construction Space'); - - $r->print( - ''); - my $thisdisfn=$fn; - $thisdisfn=~s/^\/home\/$uname\/public_html//; - - $r->print('

Construction Space Directory '.$thisdisfn.'/

'); - - if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) { - $r->print('

Co-Author: '.$uname.' at '.$udom. - '

'); + $thisdisfn=~s/^\/home\/$uname\/public_html//; # subdirectory part of + # construction space. + my $docroot=$r->dir_config('lonDocRoot'); # Apache londocument root. + + my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn; # Resource directory + my $targetdir=$udom.'/'.$uname.$thisdisfn; # Publiction target directory. + my $linkdir='/priv/'.$uname.$thisdisfn; # Full URL name of constr space. + + my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom); + + &startpage($r, $uname, $udom, $thisdisfn); # Put out the start of page. + if ($env{'environment.remote'} eq 'off') { + &dircontrols($r,$uname,$udom,$thisdisfn); # Put out actions for directory, + # browse/upload + new file page. + } else { + &pubbuttons($r,$uname,$thisdisfn); } + &resourceactions($r,$uname,$udom,$thisdisfn); #Put out form used for printing/deletion etc. - - my $docroot=$r->dir_config('lonDocRoot'); - - my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn; - my $linkdir='/~'.$uname.$thisdisfn; - - $r->print(''. - ''); + my $numdir = 0; + my $numres = 0; + + # Start off the directory table. + $r->print('

'.&mt('Directory Contents:').'

'); + $r->print(&Apache::loncommon::start_data_table() + .&Apache::loncommon::start_data_table_header_row() + .'' + .'' + .'' + .'' + .'' + .'' + .&Apache::loncommon::end_data_table_header_row() + ); my $filename; - my $dirptr=16384; + my $dirptr=16384; # Mask indicating a directory in stat.cmode. opendir(DIR,$fn); - my @files=sort(readdir(DIR)); - foreach my$filename (@files) { + my @files=sort {uc($a) cmp uc($b)} (readdir(DIR)); + foreach my $filename (@files) { my ($cdev,$cino,$cmode,$cnlink, $cuid,$cgid,$crdev,$csize, $catime,$cmtime,$cctime, $cblksize,$cblocks)=stat($fn.'/'.$filename); + my $extension=''; if ($filename=~/\.(\w+)$/) { $extension=$1; } - if (($extension ne 'meta') && (&Apache::lonnet::fileembstyle($extension))) { - my $status='Unpublished'; - my $bgcol='#FFBBBB'; - if (-e $resdir.'/'.$filename) { - my ($rdev,$rino,$rmode,$rnlink, - $ruid,$rgid,$rrdev,$rsize, - $ratime,$rmtime,$rctime, - $rblksize,$rblocks)=stat($resdir.'/'.$filename); - if ($rmtime>=$cmtime) { - $status='Published'; - $bgcol='#BBFFBB'; - } else { - $status='Modified'; - $bgcol='#FFFFBB'; - if - (&Apache::lonnet::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') { - $status.='
Diffs'; - } - } - } - $r->print(''); - } elsif ($cmode&$dirptr) { - my $disfilename=$filename; - if ($filename eq '..') { - $disfilename='Parent Directory'; - } - unless ((($filename eq '..') && ($thisdisfn eq '')) || - ($filename eq '.')) { - $r->print(''); - } + if ($cmode&$dirptr) { + putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime,$targetdir,\%bombs,\$numdir); + } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') { + putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir, + $targetdir, $linkdir, $cmtime,\%bombs,\$numres); } else { - #no extension that we know of and not a directory - #just hide it away + # "hidden" extension and not a directory, so hide it away. } } closedir(DIR); - $r->print('
FilenameModifiedStatus
'.&mt('Type').''.&mt('Actions').''.&mt('Name').''.&mt('Title').''.&mt('Status').''.&mt('Last Modified').'
'.$filename. - ''.localtime($cmtime).''.$status.'
'.$disfilename. - ''.localtime($cmtime).' 
'); + $r->print(&Apache::loncommon::end_data_table() + .&Apache::loncommon::end_page() + ); return OK; } +# +# Gets the effective URL of the request and returns it: +# $effn = getEffectiveUrl($r); +# $r - The Apache Request object. +sub getEffectiveUrl { + my $r = shift; + my $fn; + + if ($env{'form.filename'}) { # If a form filename is defined. + $fn=$env{'form.filename'}; + # + # Replace the ~username of the URL with /home/username/public_html + # so that we don't have to worry about ~ expansion internally. + # + $fn=~s/^http\:\/\/[^\/]+\///; + $fn=~s/^\///; + $fn=~s{~($LONCAPA::username_re)}{/home/$1/public_html}; + + # Remove trailing / strings (?) + + $fn=~s/\/[^\/]+$//; + } else { + # If no form is defined, use request filename. + $fn = $r->filename(); + my $lonDocRoot=$r->dir_config('lonDocRoot'); + if ( $fn =~ /$lonDocRoot/ ) { + #internal authentication, needs fixup. + $fn = $r->uri(); # non users do not get the full path request + # through SCRIPT_FILENAME + $fn=~s{^/~($LONCAPA::username_re)}{/home/$1/public_html}; + } + } + $fn=~s/\/+/\//g; + return $fn; +} +# +# Output the header of the page. This includes: +# - The HTML header +# - The H1/H3 stuff which includes the directory. +# +# startpage($r, $uame, $udom, $thisdisfn); +# $r - The apache request object. +# $uname - User name. +# $udom - Domain name the user is logged in under. +# $thisdisfn - Displayable version of the filename. + +sub startpage { + my ($r, $uname, $udom, $thisdisfn) = @_; + my $currdir = '/priv/'.$uname.$thisdisfn; + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + + my $formaction='/priv/'.$uname.$thisdisfn.'/'; + $formaction=~s|/+|/|g; + my $pagetitle .= &Apache::loncommon::help_open_menu('','',3,'Authoring'). + ''.&mt('Construction Space').': '. + '
'. + &Apache::lonhtmlcommon::crumbs($uname.$thisdisfn.'/','_top','/priv','','+1',1)."
". + &Apache::lonhtmlcommon::select_recent('construct','recent', + 'this.form.action=this.form.recent.value;this.form.submit()'). + '
'; + &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction); + if ($env{'environment.remote'} eq 'off') { + $env{'request.noversionuri'}=$currdir.'/'; + $r->print(&Apache::loncommon::start_page('Construction Space',undef, + {'body_title' => + $pagetitle,})); + } else { + $r->print(&Apache::loncommon::start_page('Construction Space',undef, + { 'only_body' => 1,})); + $r->print($pagetitle); + } + + my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn); + my $doctitle = 'LON-CAPA '.&mt('Construction Space'); + my $newname = &mt('New Name'); + my $pubdirscript=(< +top.document.title = '$esc_thisdisfn/ - $doctitle'; +// Store directory location for menu bar to find + +parent.lastknownpriv='/~$uname$esc_thisdisfn/'; + +// Confirmation dialogues + + function currdiract(theform) { + if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') { + document.publishdir.filename.value = theform.filename.value; + document.publishdir.submit(); + } + if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editmeta') { + top.location=theform.filename.value+'default.meta' + } + if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'printdir' ) { + document.printdir.postdata.value=theform.filename.value + document.printdir.submit(); + } + if (theform.dirtask.options[theform.dirtask.selectedIndex].value == "delete") { + var delform = document.delresource + delform.filename.value = theform.filename.value + delform.submit() + } + } + + function checkUpload(theform) { + if (theform.file == '') { + alert("Please use 'Browse..' to choose a file first, before uploading") + return + } + theform.submit() + } + + function SetPubDir(theform,printForm) { + if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") { + top.location = theform.openname.value + return + } + if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") { + theform.submit(); + } + if (theform.diraction.options[theform.diraction.selectedIndex].value == "editmeta") { + top.location=theform.filename.value+'default.meta' + } + if (theform.diraction.options[theform.diraction.selectedIndex].value == "printdir") { + theform.action = '/adm/printout' + theform.postdata.value = theform.filename.value + theform.submit() + } + if (theform.diraction.options[theform.diraction.selectedIndex].value == "delete") { + var delform = document.delresource + delform.filename.value = theform.filename.value + delform.submit() + } + return + } + function SetResChoice(theform) { + var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value + if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) { + changename(theform,activity) + } + if (activity == 'publish') { + var pubform = document.pubresource + pubform.filename.value = theform.filename.value + pubform.submit() + } + if (activity == 'delete') { + var delform = document.delresource + delform.filename.value = theform.filename.value + delform.submit() + } + if (activity == 'obsolete') { + var pubform = document.pubresource + pubform.filename.value = theform.filename.value + pubform.makeobsolete.value=1; + pubform.submit() + } + if (activity == 'print') { + document.printresource.postdata.value = theform.filename.value + document.printresource.submit() + } + if (activity == 'retrieve') { + document.retrieveres.filename.value = theform.filename.value + document.retrieveres.submit() + } + if (activity == 'cleanup') { + document.cleanup.filename.value = theform.filename.value + document.cleanup.submit() + } + return + } + function changename(theform,activity) { + var oldname=theform.dispfilename.value; + var newname=prompt('$newname',oldname); + if (newname == "" || !newname || newname == oldname) { + return + } + document.moveresource.newfilename.value = newname + document.moveresource.filename.value = theform.filename.value + document.moveresource.action.value = activity + document.moveresource.submit(); + } + +ENDPUBDIRSCRIPT + $r->print($pubdirscript); + + if ((($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) && + $env{'environment.remote'} ne 'off') { + $r->print('

'.&mt('Co-Author').': '.$uname.' at '.$udom. + '

'); + } +} + +sub dircontrols { + my ($r,$uname,$udom,$thisdisfn) = @_; + my %lt=&Apache::lonlocal::texthash( + cnpd => 'Cannot publish directory', + cnrd => 'Cannot retrieve directory', + mcdi => 'Must create new subdirectory inside a directory', + pubr => 'Publish this Resource', + pubd => 'Publish this Directory', + dedr => 'Delete Directory', + rtrv => 'Retrieve Old Version', + list => 'List Directory', + uplo => 'Upload file', + dele => 'Delete', + edit => 'Edit Metadata', + sela => 'Select Action', + nfil => 'New file', + nhtm => 'New HTML file', + nprb => 'New problem', + npag => 'New assembled page', + nseq => 'New assembled sequence', + ncrf => 'New custom rights file', + nsty => 'New style file', + nlib => 'New library file', + nbt => 'New bridgetask file', + nsub => 'New subdirectory', + renm => 'Rename current file to', + move => 'Move current file to', + copy => 'Copy current file to', + type => 'Type Name Here', + go => 'Go', + prnt => 'Print contents of directory', + crea => 'Create a new directory or LON-CAPA document', + acti => 'Actions for current directory', + updc => 'Upload a new document', + pick => 'Please select an action to perform using the new filename', + ); + my $mytype = $lt{'type'}; # avoid conflict with " and ' in javascript + $r->print(< + + $lt{'acti'} + $lt{'updc'} + $lt{'crea'} + + + +
+ + +
+
+ + +
+
+ +
+ + +
+ + + +
+ + +
+ + + +    + +
+ + + +END +} + +sub pubbuttons { + my ($r,$uname,$thisdisfn) = @_; + $r->print('
'. + '
'. + ''. +'
'); +} + +sub resourceactions { + my ($r,$uname,$udom,$thisdisfn) = @_; + $r->print(< + + + + +
+ + +
+
+ + +
+
+ +
+
+ +
+
+ +
+END +} + +# +# Get the title string or "[untitled]" if the file has no title metadata: +# Without the latter substitution, it's impossible to examine metadata for +# untitled resources. Resources may be legitimately untitled, to prevent +# searches from locating them. +# +# $str = getTitleString($fullname); +# $fullname - Fully qualified filename to check. +# +sub getTitleString { + my $fullname = shift; + my $title = &Apache::lonnet::metadata($fullname, 'title'); + + unless ($title) { + $title = "[".&mt('untitled')."]"; + } + return $title; +} + +sub getCopyRightString { + my $fullname = shift; + return &Apache::lonnet::metadata($fullname, 'copyright'); +} + +sub getSourceRightString { + my $fullname = shift; + return &Apache::lonnet::metadata($fullname, 'sourceavail'); +} +# +# Put out a directory table row: +# putdirectory(r, base, here, dirname, modtime) +# r - Apache request object. +# reqfile - File in request. +# here - Where we are in directory tree. +# dirname - Name of directory special file. +# modtime - Encoded modification time. +# +sub putdirectory { + my ($r, $reqfile, $here, $dirname, $modtime, $resdir, $bombs, $numdir) = @_; + # construct the display filename: the directory name unless ..: + + my $disfilename = $dirname; + if ($dirname eq '..') { + $disfilename = ''.&mt('Parent Directory').''; + } + unless ( (($dirname eq '..') && ($reqfile eq '')) || ($dirname eq '.')) { + my $kaputt=0; + foreach (keys %{$bombs}) { + if ($_=~m:^\Q$resdir\E/\Q$disfilename\E/:) { $kaputt=1; last; } + } + %Apache::lonpublisher::metadatafields=(); + %Apache::lonpublisher::metadatakeys=(); + my $construct=$here; + $construct=~s{^/priv/($LONCAPA::username_re)$}{/home/$1/public_html}; + my $dirpath = $here; + $dirpath=~s{^/priv/}{/~}; + &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile( + $construct.'/'.$dirname.'/default.meta' + )); + my $actionitem = ''; + if ($dirname eq '..') { + $actionitem = &mt('Go to ...'); + } else { + $actionitem = + '
'. + ''. + ''. + ''. + ''. + '
'; + $$numdir ++; + } + $r->print(''. + 'folder'. + ''.$actionitem.''. + ''. + $disfilename.''. + ''.($kaputt?&Apache::lonhtmlcommon::authorbombs($resdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'}); + if ($Apache::lonpublisher::metadatafields{'subject'} ne '') { + $r->print(' '. + $Apache::lonpublisher::metadatafields{'subject'}. + ' '); + } + $r->print($Apache::lonpublisher::metadatafields{'keywords'}.''. + ''.&Apache::lonlocal::locallocaltime($modtime).''. + "\n"); + } + return OK; +} +# +# Put a table row for a file resource. +# +sub putresource { + my ($r, $udom, $uname, $filename, $thisdisfn, + $resdir, $targetdir, $linkdir, + $cmtime,$bombs,$numres) = @_; + &Apache::lonnet::devalidate_cache_new('meta',$targetdir.'/'.$filename); + my $pubstatus = 'unpublished'; + my $status=&mt('Unpublished'); + my $css_class='LC_browser_file'; + my $title=' '; + my $publish_button=&mt('Publish'); + my $cstr_dir = '/home/'.$uname.'/public_html/'.$thisdisfn.'/'; +# my $action_buttons= +# '
'. +# &mt('Delete').''; + if (-e $resdir.'/'.$filename) { + my $same=0; + my ($rdev,$rino,$rmode,$rnlink, + $ruid,$rgid,$rrdev,$rsize, + $ratime,$rmtime,$rctime, + $rblksize,$rblocks)=stat($resdir.'/'.$filename); + if ($rmtime>=$cmtime) { + $same=1; + } else { + if (&Apache::londiff::are_different_files($resdir.'/'.$filename, + $cstr_dir.'/'.$filename)) { + $same=0; + } else { + $same=1; + } + } + my $meta_cmtime = (stat($cstr_dir.'/'.$filename.'.meta'))[9]; + my $meta_rmtime = (stat($resdir.'/'.$filename.'.meta'))[9]; + my $meta_same = 1; + if ($meta_rmtime < $meta_cmtime + && &Apache::londiff::are_different_files($resdir.'/'.$filename.'.meta', + $cstr_dir.'/'.$filename.'.meta')) { + $meta_same = 0; + } + $publish_button=&mt('Re-publish'); + my $rights_status = + &mt(&getCopyRightString($targetdir.'/'.$filename)).' '. + &mt(&getSourceRightString($targetdir.'/'.$filename)); + $title = ''. + &getTitleString($targetdir.'/'.$filename).''; + if ($same) { + if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) { + $pubstatus = 'obsolete'; + $status=&mt('Obsolete'); + } else { + if (!$meta_same) { + $pubstatus = 'metamodified'; + } else { + $pubstatus = 'published'; + } + $status=&mt('Published'). + '
'. $rights_status; + } +# } else { +# $action_buttons=''; +# } + } else { + $pubstatus = 'modified'; + $status=&mt('Modified'). + '
'. $rights_status; +# $action_buttons=''; + if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') { + $status.='
'.&mt('Diffs').''; + } + } + + $title.="\n".'
'. + ($$bombs{$targetdir.'/'.$filename}?''.&mt('bomb').'':&mt('Edit Metadata')).''; + + if (!$meta_same) { + $title = &mt('Metadata Modified').'
'.$title. + '
'.&mt('Metadata Diffs').''; + $title.="\n".'
'.&mt('Retrieve Metadata').''; + } + $status.="\n".'
'.&mt('Retrieve').''; + } + my $editlink=''; + my $editlink2=''; + if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) { + $editlink='
('.&mt('Edit').')'; + } + if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library)$/) { + $editlink=' ('.&mt('EditXML').')'; + $editlink2='
('.&mt('Edit').')'; + } + if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) { + $editlink.=' ('.&mt('Clean Up').')'; + } + if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) { + $editlink=' ('.&mt('Decompress').')'; + } + my $pub_select = ''; + &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres); + $r->print(&Apache::loncommon::start_data_table_row(). + ''.($filename=~/[\#\~]$/?' ': + '').''. + ''.$pub_select.''. + ''. + ''. + $filename.''.$editlink2.$editlink. + ''. + ''.$title.''. + '  '. # Display publication status + ''.$status.''. + ''.&Apache::lonlocal::locallocaltime($cmtime).''. + &Apache::loncommon::end_data_table_row() + ); + return OK; +} + +sub create_pubselect { + my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_; + $$pub_select = ' +
+ + +
'; + $$numres ++; +} + +sub check_for_versions { + my ($r,$fn,$udom,$uname) = @_; + my $versions = 0; + my $docroot=$r->dir_config('lonDocRoot'); + my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn; + my $resdir=$resfn; + $resdir=~s/\/[^\/]+$/\//; + $fn=~/\/([^\/]+)\.(\w+)$/; + my $main=$1; + my $suffix=$2; + opendir(DIR,$resdir); + while (my $filename=readdir(DIR)) { + if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) { + $versions ++; + } + } + return $versions; +} + +# +# Categorize files in the directory. +# For each file in a list of files in a file directory, +# the file categorized as one of: +# - directory +# - sequence +# - problem +# - Other resource. +# +# For each file the modification date is determined as well. +# Returned is a list of sublists: +# (directories, sequences, problems, other) +# each of the sublists contains entries of the following form (sorted by +# filename): +# (filename, typecode, lastmodtime) +# +# $list = CategorizeFiles($location, $files) +# $location - Directory in which the files live (relative to our +# execution. +# $files - list of files. +# +sub CategorizeFiles { + my $location = shift; + my $files = shift; +} 1; __END__ + + +=head1 NAME + +Apache::lonpubdir - Construction space directory lister + +=head1 SYNOPSIS + +Invoked (for various locations) by /etc/httpd/conf/srm.conf: + + + PerlAccessHandler Apache::loncacc + SetHandler perl-script + PerlHandler Apache::lonpubdir + ErrorDocument 403 /adm/login + ErrorDocument 404 /adm/notfound.html + ErrorDocument 406 /adm/unauthorized.html + ErrorDocument 500 /adm/errorhandler + + + + PerlAccessHandler Apache::lonacc + SetHandler perl-script + PerlHandler Apache::lonpubdir + ErrorDocument 403 /adm/login + ErrorDocument 404 /adm/notfound.html + ErrorDocument 406 /adm/unauthorized.html + ErrorDocument 500 /adm/errorhandler + + +=head1 INTRODUCTION + +This module publishes a directory of files. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 HANDLER SUBROUTINE + +This routine is called by Apache and mod_perl. + +=over 4 + +=item * + +read in information + +=item * + +start page output + +=item * + +run through list of files and attempt to publish unhidden files + +=back + +=head1 SUBROUTINES: + +=over + +=item startpage($r, $uame, $udom, $thisdisfn) + +Output the header of the page. This includes: + - The HTML header + - The H1/H3 stuff which includes the directory. + + startpage($r, $uame, $udom, $thisdisfn); + $r - The apache request object. + $uname - User name. + $udom - Domain name the user is logged in under. + $thisdisfn - Displayable version of the filename. + +=item getTitleString($fullname) + + Get the title string or "[untitled]" if the file has no title metadata: + Without the latter substitution, it's impossible to examine metadata for + untitled resources. Resources may be legitimately untitled, to prevent + searches from locating them. + + $str = getTitleString($fullname); + $fullname - Fully qualified filename to check. + +=item putdirectory(r, base, here, dirname, modtime) + + Put out a directory table row: + + putdirectory($r, $base, $here, $dirname, $modtime) + $r - Apache request object. + $reqfile - File in request. + $here - Where we are in directory tree. + $dirname - Name of directory special file. + $modtime - Encoded modification time. + +=item CategorizeFiles($location, $files) + + Categorize files in the directory. + For each file in a list of files in a file directory, + the file categorized as one of: + - directory + - sequence + - problem + - Other resource. + + For each file the modification date is determined as well. + Returned is a list of sublists: + (directories, sequences, problems, other) + each of the sublists contains entries of the following form (sorted by filename): + (filename, typecode, lastmodtime) + + $list = CategorizeFiles($location, $files) + $location - Directory in which the files live (relative to our execution) + $files - list of files. + +=back + +=cut +