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Diff for /loncom/interface/lonsource.pm between versions 1.2 and 1.30

version 1.2, 2004/06/12 04:44:31 version 1.30, 2013/06/04 23:12:09
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # Souce Code handler  # Source Code handler
 #  #
 # $Id$  # $Id$
 #  #
Line 31 Line 31
 package Apache::lonsource;  package Apache::lonsource;
   
 use strict;  use strict;
 use Apache::lonnet();  use Apache::lonnet;
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::lonhtmlcommon();  use Apache::lonhtmlcommon();
 use Apache::lonsequence();  use Apache::lonsequence();
Line 40  use Apache::lonmeta; Line 40  use Apache::lonmeta;
 use Apache::File;  use Apache::File;
 use Apache::lonlocal;  use Apache::lonlocal;
 use HTML::Entities;  use HTML::Entities;
   use LONCAPA qw(:DEFAULT :match);
   
 sub make_link {  sub make_link {
     my ($filename) = @_;      my ($filename, $listname) = @_;
     my $sourcelink = "http://".$ENV{'SERVER_NAME'}.      my $sourcelink = "/adm/source?inhibitmenu=yes&filename=".$filename."&listname=".$listname;
  "/adm/source/?filename=".$filename;  
   
     return $sourcelink;      return $sourcelink;
 }  }
   
 sub stage_2 {  sub stage_2 {
     my ($r, $filename) = @_;      my ($r, $filename, $listname) = @_;
     $r->print("Coming Soon");      my ($author)=($filename=~/\/res\/[^\/]+\/([^\/]+)\//);
       $r->print(&Apache::loncommon::start_page('Copy Problem Source Code to Authoring Space')
                .&mt('Please enter the directory that you would like the source code to go into.')
                .'<p>'
                .&mt('Note: the path is in reference to the root of your construction space,'
                    .' and new directories will be automatically created.')
                .'</p>');
       $r->print('<form name="copy" action="/adm/source" target="_parent" method="post">
                 <input type="hidden" name="filename" value="'.$filename.'" />
                 <input type="hidden" name="listname" value="'.$listname.'" />
                 <input type="hidden" name="action" value="copy_stage" />
                 <input type="text" size="50" name="newpath" value="/'.&mt('shared_source').'/'.$author.'" />&nbsp;
                 <input type="submit" value="'.&mt('Copy').'" />
                 </form>');
     return OK;      return OK;
 }  }
   
   sub copy_author {
       my $role;
       my $domain;
       my $author_name;
       if ($env{'request.role'} =~ m{^ca\.}) {
           ($role, $domain, $author_name) = split(/\//,$env{'request.role'});
       } else {
           $role = "au.";
           $domain = $env{'user.domain'};
           $author_name = $env{'user.name'};
       }
       return ($role,$author_name,$domain);
   }
   
   
   sub copy_stage {
       my ($r, $filename, $listname, $newpath) = @_;
   
   #Figure out if we are author or co-author
       my ($role,$author_name,$domain)=&copy_author();
   
   # Construct path to copy and filter out any possibly nasty stuff
       my $path_to_new_file = $r->dir_config('lonDocRoot').
                              "/priv/$domain/$author_name/$newpath/$listname";
       $path_to_new_file=~s/\.\.//g;
       $path_to_new_file=~s/\~//g;
       $path_to_new_file=~s/\/+/\//g;
   
   #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::lonnet::constructaccess($path_to_new_file);
   
       if (!$uname || !$udom) {
    $r->print(&Apache::loncommon::start_page('Not Allowed'));
    $r->print(&mt('Not allowed to create file [_1]', $path_to_new_file));
    $r->print(&Apache::loncommon::end_page());
    return;
       }
   
       #allowed
       $r->print(&Apache::loncommon::start_page('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, $newpath, $filename, $path_to_new_file, '1');
       } elsif(($result) && ($result =~ m|exists!|)) {
    &confirm($r, $newpath, $filename, $path_to_new_file);
       } else {
    &copy_file($r, $newpath, $filename, $path_to_new_file);
       }
       
       $r->print(&Apache::loncommon::end_page());
   }
   
   sub confirm {
       my ($r, $newpath, $filename, $path_to_new_file) = @_;
       $r->print("<b>Press delete to remove file and replace it with a copy of the source you are viewing</b><br /><br / >");
       $r->print('<form name="delete_confirm" action="/adm/source" target="_parent" method="post">
                 <input type="hidden" name="filename" value="'.$filename.'" />
                 <input type="hidden" name="path" value="'.$path_to_new_file.'" />
                 <input type="hidden" name="newpath" value="'.$newpath.'" />
                 <input type="hidden" name="action" value="delete_confirm" />
   
                 <input type="submit" value="Delete" />
                 </form>');
   }
   
   sub delete_copy_file {
       my ($r, $newpath, $filename, $path_to_new_file, $type) = @_;
       if($type eq '1') {
           $r->print('<p><span class="LC_warning">'
                    .&mt('Cannot delete non-obsolete published file.')
                    .'</span><br />'
                    .&mt('Please use the code view in previous window to use shared code.')
                    .'<br /><br />');
           $r->print('<input type="button" value="Close Window" name="close"'
                    .' onclick="window.close()" />'
                    .'</p>');
       } else {
           if(-e $path_to_new_file) {
               unless(unlink($path_to_new_file)) {
                   $r->print('<p class="LC_error"">'.&mt('Error:').' '.$!.'</p>');
                   return 0;
               }
           } else {
               $r->print('<p class="LC_error">'.&mt('No such file').'</p></form>');
               return 0;
           }
           &copy_file($r, $newpath, $filename, $path_to_new_file);
       }
   }
   
   sub copy_file {
       my ($r, $newpath, $filename, $path_to_new_file) = @_;
       $r->print("<b>Creating directories</b>");
   
   #Figure out if we are author or co-author
       my ($role,$author_name,$domain)=&copy_author();
   
       my $path = $r->dir_config('lonDocRoot')."/priv/$domain/$author_name/";
       my @directories = split(/\//,$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)) {
                       $r->print('<p class="LC_error">'.&mt('Error:').' '.$!.'</p>');
                       return 0;
                   }
                   unless(chmod(02770, ($path))) {
                       $r->print('<p class="LC_error"> '.&mt('Error:').' '.$!.'</p>');
                       return 0;
                   }
               }
           } else { } #Just move along
   
       }
       $r->print("<br /><b>Copying File</b>");
       my $problem_filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename;
       my $file_output = &includemeta(&Apache::lonnet::getfile($problem_filename),$filename);
       my $fs=Apache::File->new(">$path_to_new_file");
       if (defined($fs)) {
           print $fs $file_output;
       }
       $r->print("<br /><br />");
       $r->print('<input type="button" value="Close Window" name="close" onclick="window.close()" />');
       #Some 1.3'ish feature is to include the derivative feature, will go here..'
   }
   
 sub print_item {  sub print_item {
     my ($r, $filename) = @_;      my ($r,$filename,$listname) = @_;
     $filename = "/home/httpd/html".$filename;      my $file_output = 
     my $file_output = &Apache::lonnet::getfile($filename);          &includemeta(&Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$filename),
     my ($rows,$cols) = &Apache::edit::textarea_sizes(\$file_output);                                                $filename);
     $r->print('<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.      $r->print(&Apache::loncommon::start_page('View Source Code',undef,
       &HTML::Entities::encode($file_output,'<>&"').'</textarea>');                                               {'only_body' => 1}));
     return OK;      if ($file_output ne '') {
           my $access_to_cstr;
           my $lonhost = $r->dir_config('lonHostID');
           if (&Apache::lonnet::is_library($lonhost)) {
               my @possdoms = &Apache::lonnet::current_machine_domains();
               foreach my $dom (@possdoms) {
                   if ($env{"user.role.au./$dom/"}) {
                       $access_to_cstr = 1;
                       last;  
                   }
               }
               unless ($access_to_cstr) {
                   foreach my $key (keys(%env)) {
                       if ($key =~ m{^\Quser.role.ca./\E($match_domain)/}) {
                           my $adom = $1;
                           if (grep(/^\Q$adom\E$/,@possdoms)) {
                               $access_to_cstr = 1;
                               last;
                           }
                       }
                   }
               }
               if ($access_to_cstr) {
                   $r->print('
                <form name="copy" action="/adm/source" target="_parent" method="post">
                 <input type="button" value="'.&mt('Close Window').'" name="close" onclick="window.close();" />
                 <input type="hidden" name="filename" value="'.$filename.'" />
                 <input type="hidden" name="listname" value="'.$listname.'" />
                 <input type="hidden" name="action" value="stage2" />
                 <input type="submit" value="'.&mt('Copy to Authoring Space').'" />
                </form><hr />
                   ');
               } else {
                   $r->print('<p><span class="LC_info">'.
                             &mt('Source code is displayed, but you can not copy to Authoring Space, as you do not have an author or co-author role on this server.').
                             '</span></p><a href="javascript:window.close();">'.&mt('Close Window').
                             '</a><br /><hr />'
                            );
               }
           } else {
               $r->print('<p><span class="LC_info">'.
                         &mt('Source code is displayed, but you can not copy to Authoring Space on this server.').
                             '</span></p><a href="javascript:window.close();">'.&mt('Close Window').
                             '</a><br /><hr />'
                        );
   
           }
           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;
           $r->print('<form name="showsrc" action="" method="post" onsubmit="return false">'."\n".
                     '<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
                     &HTML::Entities::encode($file_output,'<>&"').'</textarea></form>');
       } else {
           $r->print('<p class="LC_warning">'.
                     &mt('Unable to retrieve file contents.').
                     '</p><a href="javascript:window.close();">'.&mt('Close Window').'</a>'
                    );
       }
       $r->print(&Apache::loncommon::end_page());
       return;
 }  }
   
   sub includemeta {
       my ($file_output,$orgfilename)=@_;
       my $escfilename=&escape($orgfilename);
       my $copytime=time;
       if ($file_output=~/\<meta\s*name\=\"isbasedonres\"/i) {
    $file_output=~s/(\<meta\s*name\=\"isbasedonres\"\s*content\=\"[^\"]*)\"/$1\,\Q$escfilename\E\"/i;
       } else {
    $file_output=~s/(\<(?:html|problem)[^\>]*\>)/$1\n\<meta name=\"isbasedonres\" content=\"\Q$escfilename\E\" \/\>/i;
       }
       if ($file_output=~/\<meta\s*name\=\"isbasedontime\"/i) {
    $file_output=~s/(\<meta\s*name\=\"isbasedontime\"\s*content\=\"[^\"]*)\"/$1\,\Q$copytime\E\"/i;
       } else {
    $file_output=~s/(\<(?:html|problem)[^\>]*\>)/$1\n\<meta name=\"isbasedontime\" content=\"\Q$copytime\E\" \/\>/i;
       }
       if ($file_output eq '-1') {
           return;
       } else {
           return $file_output;
       }
   }
   
 sub handler {   sub handler {
     my $r=shift;      my $r=shift;
     if($ENV{'form.action'} eq 'stage2') {       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  &stage_2($r, $ENV{'form.filename'});                                              ['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;
       }
       unless (&Apache::lonnet::allowed('bre',$filename)) {
           $env{'user.error.msg'}="$filename:bre:1:1:Access to resource denied";
           return HTTP_NOT_ACCEPTABLE;
       }
       unless (&Apache::lonnet::allowed('cre','/')) {
           $env{'user.error.msg'}="$filename:cre:1:1:Access to source code denied";
           return HTTP_NOT_ACCEPTABLE;
       }
   
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
   
       if ($env{'form.action'} eq 'stage2') {
           &stage_2($r,$filename,$listname);
       } elsif($env{'form.action'} eq 'copy_stage') {
           &copy_stage($r,$filename,$listname,$env{'form.newpath'});
       } elsif($env{'form.action'} eq 'delete_confirm') {
           &delete_copy_file($r,$env{'form.newpath'},$filename, $env{'form.path'}, '0');
     } else {      } else {
  &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},          &print_item($r,$filename,$listname);
  ['filename']);  
  if (!&Apache::lonnet::allowed('cre',$ENV{'form.filename'})) {  
     return FORBIDDEN;  
  }  
  &Apache::loncommon::content_type($r,'text/html');  
  my $filename = $ENV{'form.filename'};  
  $r->send_http_header;  
  $r->print('    <form name="copy" action="/adm/source/" target="_parent" method="post">  
  <input type="button" value="Close Window" name="close" onClick="window.close()">  
       <input type="hidden" name="filename" value="'.$filename.'" />  
       <input type="hidden" name="action" value="stage2" />  
               <input type="submit" value="Copy to CSTR" />  
     </form>');  
  $r->print('<hr />');  
  &print_item($r, $ENV{'form.filename'});  
     }      }
     return OK;      return OK;
 }  }
   
 1;  1;
   
   
Removed from v.1.2  
changed lines
  Added in v.1.30

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