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Diff for /rat/lonambiguous.pm between versions 1.15 and 1.22

version 1.15, 2005/03/01 00:22:57 version 1.22, 2008/11/11 16:06:46
Line 26 Line 26
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
   
   =head1 NAME
   
   Apache::lonambiguous
   
   =head1 SYNOPSIS
   
   Handler to resolve ambiguous file locations.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 HANDLER SUBROUTINE
   
   make_symb()
   
   and
   
   handler()
   
   =head1 OTHER SUBROUTINES
   
   =over
   
   =item *
   
   cleanup()
   
   =item *
   
   getlost()
   
   =back
   
   =cut
   
 package Apache::lonambiguous;  package Apache::lonambiguous;
   
 use strict;  use strict;
Line 44  sub cleanup { Line 80  sub cleanup {
     &Apache::lonnet::logthis('Failed cleanup ambiguous: bighash');      &Apache::lonnet::logthis('Failed cleanup ambiguous: bighash');
         }          }
     }      }
       return OK;
 }  }
   
 # ----------------------------------------------------------- Could not resolve  # ----------------------------------------------------------- Could not resolve
Line 53  sub getlost { Line 90  sub getlost {
     $errmsg=&mt($errmsg);      $errmsg=&mt($errmsg);
     &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
     $r->print(      $r->print(&Apache::loncommon::start_page('Could not handle ambiguous resource reference').
  '<head><title>Unknown Error</title></head>'.        $errmsg.
   &Apache::loncommon::bodytag('Could not handle ambiguous resource reference').        &Apache::loncommon::end_page());
   $errmsg.  
  '</body></html>');  
 }  }
   
 # ================================================================ Main Handler  # ================================================================ Main Handler
Line 82  sub handler { Line 117  sub handler {
   
 # ---------------------------------------------------------- Is this selecting?  # ---------------------------------------------------------- Is this selecting?
     
    if ($ENV{'form.selecturl'}) {     if ($env{'form.selecturl'}) {
        my $envkey;         my $envkey;
        if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',         if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
                     &GDBM_READER(),0640)) {                      &GDBM_READER(),0640)) {
           foreach $envkey (keys %ENV) {            foreach $envkey (keys %env) {
              if ($envkey=~/^form\.(\d+)\.(\d+)$/) {               if ($envkey=~/^form\.(\d+)\.(\d+)$/) {
 # ---------------------------------------------------- Update symb and redirect  # ---------------------------------------------------- Update symb and redirect
          my $mapid=$1;           my $mapid=$1;
Line 96  sub handler { Line 131  sub handler {
            $resurl => [$resurl,$resid]);             $resurl => [$resurl,$resid]);
                  untie(%bighash);                   untie(%bighash);
                  $r->header_out(Location =>                    $r->header_out(Location => 
                                 'http://'.$ENV{'HTTP_HOST'}.$resurl);   &Apache::lonnet::absolute_url().$resurl);
                  return REDIRECT;                   return REDIRECT;
              }               }
   }    }
Line 110  sub handler { Line 145  sub handler {
 # ---------------------------------------------------------- Do we have a case?  # ---------------------------------------------------------- Do we have a case?
   
    my $thisfn;     my $thisfn;
    unless (($thisfn=$ENV{'request.ambiguous'})&&($ENV{'request.course.fn'})) {     unless (($thisfn=$env{'request.ambiguous'})&&($env{'request.course.fn'})) {
        &getlost($r,'Could not find information on resource.');         &getlost($r,'Could not find information on resource.');
        return OK;         return OK;
    }     }
Line 121  sub handler { Line 156  sub handler {
     my %hash;      my %hash;
     my $syval='';      my $syval='';
           
     if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',      if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
                   &GDBM_READER(),0640)) {                    &GDBM_READER(),0640)) {
        $syval=$hash{$thisfn};         $syval=$hash{$thisfn};
        untie(%hash);         untie(%hash);
Line 135  sub handler { Line 170  sub handler {
 # ----------------------------------- Okay, this should have appeared on a page  # ----------------------------------- Okay, this should have appeared on a page
    &Apache::loncommon::content_type($r,'text/html');     &Apache::loncommon::content_type($r,'text/html');
            $r->header_out(Location =>              $r->header_out(Location => 
   'http://'.$ENV{'HTTP_HOST'}.    &Apache::lonnet::absolute_url().
   &Apache::lonnet::clutter($page));    &Apache::lonnet::clutter($page));
            return REDIRECT;             return REDIRECT;
        } else {         } else {
Line 145  sub handler { Line 180  sub handler {
        }         }
     }      }
 # ------------------------------------Encrypted requests go straight to navmaps  # ------------------------------------Encrypted requests go straight to navmaps
    if ($ENV{'request.enc'}) {     if ($env{'request.enc'}) {
        &Apache::loncommon::content_type($r,'text/html');         &Apache::loncommon::content_type($r,'text/html');
        $r->header_out(Location => 'http://'.$ENV{'HTTP_HOST'}.'/adm/navmaps');         $r->header_out(Location => 
         &Apache::lonnet::absolute_url().'/adm/navmaps');
        return REDIRECT;         return REDIRECT;
    }     }
 # ------------------------------------------------ Would be standalone resource  # ------------------------------------------------ Would be standalone resource
   
    if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',     if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
                     &GDBM_READER(),0640)) {                      &GDBM_READER(),0640)) {
 # ---------------------------------------------- Get ID(s) for current resource  # ---------------------------------------------- Get ID(s) for current resource
       my $ids=$bighash{'ids_'.&Apache::lonnet::clutter($thisfn)};        my $ids=$bighash{'ids_'.&Apache::lonnet::clutter($thisfn)};
Line 179  sub handler { Line 215  sub handler {
  my $mapurl=$bighash{'map_id_'.(split(/\./,$id))[0]};   my $mapurl=$bighash{'map_id_'.(split(/\./,$id))[0]};
  my $symb=&make_symb($id);   my $symb=&make_symb($id);
  &Apache::loncommon::content_type($r,'text/html');   &Apache::loncommon::content_type($r,'text/html');
  &Apache::lonnet::logthis('http://'.$ENV{'HTTP_HOST'}.$resurl.'?symb='.$symb);  
  $r->header_out(Location =>    $r->header_out(Location => 
    'http://'.$ENV{'HTTP_HOST'}.$resurl.'?symb='.$symb);         &Apache::lonnet::absolute_url().
          $resurl.'?symb='.$symb);
  return REDIRECT;   return REDIRECT;
     }      }
             if ($#possibilities>0) {              if ($#possibilities>0) {
 # ----------------------------------------------- Okay, really multiple choices  # ----------------------------------------------- Okay, really multiple choices
        &Apache::loncommon::content_type($r,'text/html');         &Apache::loncommon::content_type($r,'text/html');
                $r->send_http_header;                 $r->send_http_header;
                my $bodytag=                 my $start_page=
                       &Apache::loncommon::bodytag('Pick Instance of Resource');     &Apache::loncommon::start_page('Pick Instance of Resource');
                $r->print(<<ENDSTART);                 $r->print(<<ENDSTART);
 <head><title>Choose Location</title></head>  $start_page
 $bodytag  
 The resource you had been accessing appears more than once in this course,  The resource you had been accessing appears more than once in this course,
 and LON-CAPA has insufficient session information to determine which instance  and LON-CAPA has insufficient session information to determine which instance
 of the resource you meant.  of the resource you meant.
Line 212  ENDSTART Line 247  ENDSTART
      &Apache::lonnet::gettitle($mapurl).'&nbsp;'.       &Apache::lonnet::gettitle($mapurl).'&nbsp;'.
      '</td></tr>');       '</td></tr>');
                } @possibilities;                 } @possibilities;
                $r->print('</table></body></html>');                 $r->print('</table>'.&Apache::loncommon::end_page());
        untie(%bighash);         untie(%bighash);
                return OK;                 return OK;
             }              }
Removed from v.1.15  
changed lines
  Added in v.1.22

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