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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1191 and 1.1192

version 1.1191, 2012/09/25 19:54:38 version 1.1192, 2012/10/29 17:39:02
Line 6511  sub allowed { Line 6511  sub allowed {
    return 'F';     return 'F';
 }  }
   
   # ------------------------------------------- Check construction space access
   
   sub constructaccess {
       my ($url,$setpriv)=@_;
   
   # We do not allow editing of previous versions of files
       if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
   
   # Get username and domain from URL
       my ($ownername,$ownerdomain,$ownerhome);
   
       ($ownerdomain,$ownername) =
           ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)/});
   
   # 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?
          $ownerhome = $env{'user.home'};
          if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
             return ($ownername,$ownerdomain,$ownerhome);
          }
       } else {
   # Co-author for this?
           if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
               exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
               $ownerhome = &homeserver($ownername,$ownerdomain);
               return ($ownername,$ownerdomain,$ownerhome);
           }
       }
   
   # We don't have any access right now. If we are not possibly going to do anything about this,
   # we might as well leave
      unless ($setpriv) { return ''; }
   
   # Backdoor access?
       my $allowed=&allowed('eco',$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=&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 $now = time;
           &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
                              $now,'ca','constructaccess');
           $ownerhome = &homeserver($ownername,$ownerdomain);
           return($ownername,$ownerdomain,$ownerhome);
       }
   # No business here
       return '';
   }
   
 sub get_comm_blocks {  sub get_comm_blocks {
     my ($cdom,$cnum) = @_;      my ($cdom,$cnum) = @_;
     if ($cdom eq '' || $cnum eq '') {      if ($cdom eq '' || $cnum eq '') {
Line 11942  allowed($priv,$uri,$symb,$role) : check Line 12009  allowed($priv,$uri,$symb,$role) : check
   
 =item *  =item *
   
   constructaccess($url,$setpriv) : check for access to construction space URL
   
   See if the owner domain and name in the URL match those in the
   expected environment.  If so, return three element list
   ($ownername,$ownerdomain,$ownerhome).
   
   Otherwise return the null string.
   
   If second argument 'setpriv' is true, it assigns the privileges,
   and returns the same three element list, unless the owner has
   blocked "ad hoc" Domain Coordinator access to the Author Space,
   in which case the null string is returned.
   
   =item *
   
 definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom  definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
 role rolename set privileges in format of lonTabs/roles.tab for system, domain,  role rolename set privileges in format of lonTabs/roles.tab for system, domain,
 and course level  and course level
Removed from v.1.1191  
changed lines
  Added in v.1.1192

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