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Diff for /loncom/auth/loncacc.pm between versions 1.48 and 1.54

version 1.48, 2008/11/19 17:38:21 version 1.54, 2011/10/21 16:03:11
Line 97  use Apache::lonacc; Line 97  use Apache::lonacc;
 use LONCAPA qw(:DEFAULT :match);  use LONCAPA qw(:DEFAULT :match);
   
 sub constructaccess {  sub constructaccess {
     my ($url,$ownerdomain)=@_;      my ($url,$setpriv)=@_;
     my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)($match_username)\//);  
     unless (($ownername) && ($ownerdomain)) { return ''; }  # We do not allow editing of previous versions of files
     # We do not allow editing of previous versions of files.  
     if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }      if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
     my @possibledomains = &Apache::lonnet::current_machine_domains();  
     if ($ownername eq $env{'user.name'}) {  # Get username and domain from URL
  foreach my $domain (@possibledomains) {      my ($ownerdomain,$ownername)=($url=~/^\/priv\/($match_domain)\/($match_username)\//);
     if ($domain eq $env{'user.domain'}) {  
  return ($ownername,$domain);  # The URL does not really point to any authorspace, forget it
     }      unless (($ownername) && ($ownerdomain)) { return ''; }
     
   # Now we need to see if the user has access to the authorspace of
   # $ownername at $ownerdomain
   
       if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
   # Real author for this?
          if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
             return ($ownername,$ownerdomain);
          }
       } else {
   # Co-author for this?
    if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
       exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
       return ($ownername,$ownerdomain);
  }   }
     }      }
       # We don't have any access right now. If we are not possibly going to do anything about this,
     foreach my $domain (@possibledomains) {  # we might as well leave
  if (exists($env{'user.priv.ca./'.$domain.'/'.$ownername.'./'}) ||     unless ($setpriv) { return ''; }
     exists($env{'user.priv.aa./'.$domain.'/'.$ownername.'./'}) ) {  
     return ($ownername,$domain);  # Backdoor access?
  }      my $allowed=&Apache::lonnet::allowed('eco',$ownerdomain);
   # Nope
       unless ($allowed) { return ''; }
   # Looks like we may have access, but could be locked by the owner of the construction space
       if ($allowed eq 'U') {
           my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],
                                            $ownerdomain,$ownername);
   # Is blocked by owner
           if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
       }
       if (($allowed eq 'F') || ($allowed eq 'U')) {
   # Grant temporary access
           my $then=$env{'user.login.time'};
           my $update==$env{'user.update.time'};
           if (!$update) { $update = $then; }
           my $refresh=$env{'user.refresh.time'};
           if (!$refresh) { $refresh = $update; }
           my $now = time;
           &Apache::lonnet::check_adhoc_privs($ownerdomain,$ownername,
                                              $update,$refresh,$now,'ca',
                                              'constructaccess');
           return($ownername,$ownerdomain);
     }      }
   # No business here
     return '';      return '';
 }  }
   
Line 141  sub handler { Line 176  sub handler {
  $env{'request.state'}    = "construct";   $env{'request.state'}    = "construct";
  $env{'request.filename'} = $r->filename;   $env{'request.filename'} = $r->filename;
   
  unless (&constructaccess($requrl,$r->dir_config('lonDefDomain'))) {   unless (&constructaccess($requrl,'setpriv')) {
     $r->log_reason("Unauthorized $requrl", $r->filename);       $r->log_reason("Unauthorized $requrl", $r->filename); 
     return HTTP_NOT_ACCEPTABLE;      return HTTP_NOT_ACCEPTABLE;
  }   }
Removed from v.1.48  
changed lines
  Added in v.1.54

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