# The LearningOnline Network with CAPA # Souce Code handler # # $Id: lonsource.pm,v 1.8 2004/07/08 20:17:59 taceyjo1 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. # # 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. # # 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 # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # ### package Apache::lonsource; use strict; use Apache::lonnet(); use Apache::loncommon(); use Apache::lonhtmlcommon(); use Apache::lonsequence(); use Apache::Constants qw(:common :http); use Apache::lonmeta; use Apache::File; use Apache::lonlocal; use HTML::Entities; sub make_link { my ($filename, $listname) = @_; my $sourcelink = "http://".$ENV{'SERVER_NAME'}. "/adm/source/?filename=".$filename."&listname=".$listname; return $sourcelink; } sub stage_2 { my ($r, $filename, $author, $listname) = @_; $filename = $filename; &Apache::loncommon::content_type($r,'text/html'); my ($uname, $udom) = &Apache::loncacc::constructaccess('/~'.$author.'/',$r->dir_config('lonDefDomain')); $r->send_http_header; $r->print('LON-CAPA Move source to construction space'); $r->print(&Apache::loncommon::bodytag('Problem source code moving operation')); $r->print("Please enter the directory that you would like the source code to go into, a default has also been provided
"); $r->print("Also note, the path is in reference to the root of your construction space, and new directories will be automatically created.

"); $r->print(''); return OK; } sub copy_stage { my ($r, $filename, $listname, $newpath) = @_; my $role; my $domain; my $author_name; #Figure out if we are author or co-author if($ENV{'request.role'} =~ m|ca.|) { ($role, $domain, $author_name) = split(/\//,$ENV{'request.role'}); } else { $role = "au."; $domain = $ENV{'user.domain'}; $author_name = $ENV{'user.name'}; } my $path_to_new_file = '/home/'.$author_name.'/public_html/'.$newpath.'/'.$listname; #Just checking again for access as we want to make sure that it is really ok now that we have the real path my ($uname,$udom)= &Apache::loncacc::constructaccess($path_to_new_file,$domain); unless (($uname) && ($udom)) { return HTTP_NOT_ACCEPTABLE; } &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; $r->print('LON-CAPA Move source to construction space'); $r->print(&Apache::loncommon::bodytag('Copying Source')); my $result = &Apache::loncfile::exists($uname, $udom, $path_to_new_file); $r->print($result); if(($result) && ($result =~ m|published|) ) { &delete_copy_file($r, $author_name, $newpath, $filename, $path_to_new_file, '1'); } elsif(($result) && ($result =~ m|exists!|)) { &confirm($r, $author_name, $newpath, $filename, $path_to_new_file); } else { ©_file($r, $author_name, $newpath, $filename, $path_to_new_file); } return OK; } sub confirm { my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_; $r->print("Press delete to remove file and replace it with a copy of the source you are viewing

"); $r->print(''); } sub delete_copy_file { my ($r, $author_name, $newpath, $filename, $path_to_new_file, $type) = @_; if($type eq '1') { $r->print("Cannot delete non-obsolete published file
Please use the code view in previous window to use shared code

"); $r->print(''); } else { if(-e $path_to_new_file) { unless(unlink($path_to_new_file)) { $r->print(''.&mt('Error').': '.$!.''); return 0; } } else { $r->print('

'.&mt('No such file').'.

'); return 0; } ©_file($r, $author_name, $newpath, $filename, $path_to_new_file); } } sub copy_file { my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_; $r->print("Creating directories"); my $path = '/home/'.$author_name.'/public_html/'; my @directories = split(/\//,$newpath); foreach my $now_checking (@directories) { if($now_checking ne '') { $path = $path.'/'.$now_checking; if(-e $path) {} #More moving along, isn't recursion fun' else { unless(mkdir($path, 02770)) { $r->print(''.&mt('Error').': '.$!.''); return 0; } unless(chmod(02770, ($path))) { $r->print(' '.&mt('Error').': '.$!.''); return 0; } } } else { } #Just move along } $r->print("
Copying File"); my $problem_filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename; my $file_output = &Apache::lonnet::getfile($problem_filename); my $fs=Apache::File->new(">$path_to_new_file"); if (defined($fs)) { print $fs $file_output; } $r->print("

"); $r->print(''); #Some 1.3'ish feature is to include the derivative feature, will go here..' } sub print_item { my ($r, $filename) = @_; $filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename; &Apache::lonnet::logthis("print_item filename = $filename"); my $file_output = &Apache::lonnet::getfile($filename); my $count=0; my $maxlength=-1; foreach (split ("\n", $file_output)) { $count+=int(length($_)/79); $count++; if (length($_) > $maxlength) { $maxlength = length($_); } } my $rows = $count; my $cols = $maxlength; $r->print(''); return OK; } sub handler { my $r=shift; &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['filename','listname']); my $filename = $ENV{'form.filename'}; my $listname = $ENV{'form.listname'}; my $source = &Apache::lonnet::metadata($filename,'sourceavail'); if ($source ne 'open') { $ENV{'user.error.msg'}="$filename:cre:1:1:Source code not available"; return HTTP_NOT_ACCEPTABLE; } if ((!&Apache::lonnet::allowed('cre',$filename)) || (!&Apache::lonnet::allowed('bre',$filename))) { $ENV{'user.error.msg'}="$filename:bre:1:1:Access to resource denied"; return HTTP_NOT_ACCEPTABLE; } if ($ENV{'form.action'} eq 'stage2') { my $author = &Apache::lonnet::metadata($filename,'authorspace'); $author =~ m|@|; $author = $`; #This just tells who the author name is for later processing. &stage_2($r, $ENV{'form.filename'}, $author, $listname); } elsif($ENV{'form.action'} eq 'copy_stage') { ©_stage($r, $filename,$ENV{'form.listname'},$ENV{'form.newpath'}); } elsif($ENV{'form.action'} eq 'delete_confirm') { &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; &delete_copy_file($r, $ENV{'form.author'}, $ENV{'form.newpath'}, $ENV{'form.filename'}, $ENV{'form.path'}, '0'); } else { &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; $r->print(''); $r->print('

'); &print_item($r, $ENV{'form.filename'}); } return OK; } 1; 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.