loncom/lonnet/perl/lonnet.pm - diff

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-version 1.915, 2007/10/01 21:06:04
+version 1.916, 2007/10/01 21:52:57
  Line 397  sub transfer_profile_to_env {
      }
  }
+ # ---------------------------------------------------- Check for valid session
+ sub check_for_valid_session {
+     my ($r) = @_;
+     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
+     my $lonid=$cookies{'lonID'};
+     return undef if (!$lonid);
+     my $handle=&LONCAPA::clean_handle($lonid->value);
+     my $lonidsdir=$r->dir_config('lonIDsDir');
+     return undef if (!-e "$lonidsdir/$handle.id");
+     open(my $idf,'+<',"$lonidsdir/$handle.id");
+     return undef if (!$idf);
+     flock($idf,LOCK_SH);
+     my %disk_env;
+     if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
+ 	    &GDBM_READER(),0640)) {
+ 	return undef;
+     }
+     if (!defined($disk_env{'user.name'})
+ 	|| !defined($disk_env{'user.domain'})) {
+ 	return undef;
+     }
+     return $handle;
+ }
  sub timed_flock {
      my ($file,$lock_type) = @_;
      my $failed=0;