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Initial revision

    1: # The LearningOnline Network
    2: # Replication Manager
    3: # (Access Handler for File Transfers
    4: # (lonacc: Cookie Based Access Handler
    5: # 5/21/99,5/22,5/29,5/31,6/15 Gerd Kortemeyer)
    6: # 6/16,6/18 Gerd Kortemeyer)
    7: # 6/18,6/21,6/26,6/28,6/29,6/30,
    8: # 7/2,7/3,7/9,7/10,7/12 Gerd Kortemeyer
    9: 
   10: package Apache::lonrep;
   11: 
   12: use strict;
   13: use Apache::Constants qw(:common :http);
   14: use LWP::UserAgent();
   15: use Apache::lonnet();
   16: use Apache::File();
   17: 
   18: sub handler {
   19:     my $r = shift;
   20:     if (-e $r->finfo) {
   21:       return OK;
   22:     } else {
   23:       my $filename=$r->filename.$r->path_info;
   24:       my $transname="$filename.in.transfer";
   25:       if (-e $transname) {
   26: 	sleep 10;
   27:         $r->filename($filename);
   28:         if (-e $r->finfo) {
   29: 	   return OK;
   30:         } else {
   31: 	   $r->log_reason("Waiting for file transfer timed out",$filename);
   32: 	   return HTTP_SERVICE_UNAVAILABLE;
   33:         }
   34:       } else {
   35:         my $remoteurl=Apache::lonnet::subscribe($filename);
   36:         if ($remoteurl eq 'con_lost') {
   37: 	   $r->log_reason("Subscribe returned con_lost",$filename);
   38:            return HTTP_SERVICE_UNAVAILABLE;
   39: 	} elsif ($remoteurl eq 'not_found') {
   40: 	   $r->log_reason("Subscribe returned not_found",$filename);
   41: 	   return HTTP_NOT_FOUND;
   42:         } elsif ($remoteurl eq 'forbidden') {
   43: 	   $r->log_reason("Subscribe returned forbidden",$filename);
   44:            return FORBIDDEN;
   45:         } else {
   46:            my @parts=split(/\//,$filename);
   47:            my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
   48:            my $count;
   49:            for ($count=5;$count<$#parts;$count++) {
   50:                $path.="/$parts[$count]";
   51:                if ((-e $path)!=1) {
   52: 		   mkdir($path,0777);
   53:                }
   54:            }
   55:            my $ua=new LWP::UserAgent;
   56:            my $request=new HTTP::Request('GET',"$remoteurl");
   57:            my $response=$ua->request($request,$transname);
   58:            if ($response->is_error()) {
   59: 	       unlink($transname);
   60:                my $message=$response->status_line;
   61:                $r->log_reason("LWP GET: $message",$filename);
   62:                return HTTP_SERVICE_UNAVAILABLE;
   63:            } else {
   64:                rename($transname,$filename);
   65:                $r->filename($filename);
   66:                return OK;
   67:            }
   68:         }
   69:       }
   70:    }
   71: }
   72: 
   73: 1;
   74: __END__
   75: 
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