[BACK]Return to loncacc.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / auth

Diff for /loncom/auth/loncacc.pm between versions 1.44 and 1.51

version 1.44, 2007/02/01 07:13:04 version 1.51, 2010/09/30 16:42:30
Line 27 Line 27
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
   =pod
   
   =head1 NAME
   
   Apache::lonacc - Cookie Based Access Handler for Construction Area
   
   =head1 SYNOPSIS
   
   Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf:
   
    PerlAccessHandler       Apache::loncacc
   
   =head1 INTRODUCTION
   
   This module enables cookie based authentication for construction area
   and is used to control access for three (essentially equivalent) URIs.
   
    <LocationMatch "^/priv.*">
    <LocationMatch "^/\~.*">
    <LocationMatch "^/\~.*/$">
   
   Whenever the client sends the cookie back to the server, 
   if the cookie is missing or invalid, the user is re-challenged
   for login information.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 HANDLER SUBROUTINE
   
   This routine is called by Apache and mod_perl.
   
   =over 4
   
   =item *
   
   load POST parameters
   
   =item *
   
   store where they wanted to go (first url entered)
   
   =back
   
   =head1 OTHERSUBROUTINES
   
   =over
   
   =item constructaccess($url,$ownerdomain)
   
   See if the owner domain and name
   in the URL match those in the expected environment.  If so, return 
   two element list ($ownername,$ownerdomain).  Else, return null string.
   
   =back
   
   =cut
   
   
 package Apache::loncacc;  package Apache::loncacc;
   
 use strict;  use strict;
 use Apache::Constants qw(:common :http :methods REDIRECT);  use Apache::Constants qw(:common :http :methods REDIRECT);
 use CGI::Cookie();  use Fcntl qw(:flock);
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::lonacc();  use Apache::lonacc;
 use LONCAPA qw(:DEFAULT :match);  use LONCAPA qw(:DEFAULT :match);
   
 sub constructaccess {  sub constructaccess {
     my ($url,$ownerdomain)=@_;      my ($url,$ownerdomain,$setpriv)=@_;
     my ($ownername)=($url=~m{/(?:\~|priv/|home/)($match_username)/});      my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)($match_username)\//);
     unless (($ownername) && ($ownerdomain)) { return ''; }      unless (($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+)$/) { return ''; }
Line 47  sub constructaccess { Line 106  sub constructaccess {
     if ($ownername eq $env{'user.name'}) {      if ($ownername eq $env{'user.name'}) {
  foreach my $domain (@possibledomains) {   foreach my $domain (@possibledomains) {
     if ($domain eq $env{'user.domain'}) {      if ($domain eq $env{'user.domain'}) {
     &Apache::lonnet::logthis("good1!");  
  return ($ownername,$domain);   return ($ownername,$domain);
     }      }
  }   }
     }      }
       
     foreach my $domain (@possibledomains) {      foreach my $domain (@possibledomains) {
  if (exists($env{'user.priv.ca./'.$domain.'/'.$ownername.'./'}) ||   if (exists($env{'user.priv.ca./'.$domain.'/'.$ownername.'./'}) ||
     exists($env{'user.priv.aa./'.$domain.'/'.$ownername.'./'}) ) {      exists($env{'user.priv.aa./'.$domain.'/'.$ownername.'./'}) ) {
     &Apache::lonnet::logthis("good2!");  
     return ($ownername,$domain);      return ($ownername,$domain);
  }   }
     }      }
     &Apache::lonnet::logthis("boo! hiss!");  
       my $then=$env{'user.login.time'};
       my %dcroles = ();
       if (&is_active_dc($ownerdomain,$then)) {
           my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],
                                            $ownerdomain,$ownername);
           unless ($blocked{'domcoord.author'} eq 'blocked') {
               if (grep(/^$ownerdomain$/,@possibledomains)) {
                   if ($setpriv) {
                       my $refresh=$env{'user.refresh.time'};
                       if (!$refresh) {
                           $refresh = $then;
                       }
                       my $now = time;
                       &Apache::lonnet::check_adhoc_privs($ownerdomain,$ownername,
                                                          $then,$refresh,$now,'ca',
                                                          'constructaccess');
                   }
                   return($ownername,$ownerdomain);
               }
           }
       }
     return '';      return '';
 }  }
   
   sub is_active_dc {
       my ($ownerdomain,$then) = @_;
       my $livedc;
       if ($env{'user.adv'}) {
           my $domrole = $env{'user.role.dc./'.$ownerdomain.'/'};
           if ($domrole) {
               my ($tstart,$tend)=split(/\./,$domrole);
               $livedc = 1;
               if ($tstart && $tstart>$then) { undef($livedc); }
               if ($tend   && $tend  <$then) { undef($livedc); }
           }
       }
       return $livedc;
   }
   
   
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
   
     my $requrl=$r->uri;      my $requrl=$r->uri;
     $env{'request.editurl'}=$requrl;      $env{'request.editurl'}=$requrl;
     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));  
     my $lonid=$cookies{'lonID'};  
     my $cookie;  
     if ($lonid) {  
       my $handle=&LONCAPA::clean_handle($lonid->value);  
         my $lonidsdir=$r->dir_config('lonIDsDir');  
         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {  
   
 # ------------------------------------------------------ Initialize Environment      my $handle =  &Apache::lonnet::check_for_valid_session($r);
       if ($handle ne '') {
   
             &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);  # ------------------------------------------------------ Initialize Environment
           my $lonidsdir=$r->dir_config('lonIDsDir');
    &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
   
 # --------------------------------------------------------- Initialize Language  # --------------------------------------------------------- Initialize Language
     
      &Apache::lonlocal::get_language_handle($r);   &Apache::lonlocal::get_language_handle($r);
   
 # -------------------------------------------------------------- Resource State  # -------------------------------------------------------------- Resource State
   
             $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($requrl,$r->dir_config('lonDefDomain'),'setpriv')) {
                 $r->log_reason("Unauthorized $requrl", $r->filename);       $r->log_reason("Unauthorized $requrl", $r->filename); 
         return HTTP_NOT_ACCEPTABLE;      return HTTP_NOT_ACCEPTABLE;
             }   }
   
 # -------------------------------------------------------- Load POST parameters  # -------------------------------------------------------- Load POST parameters
   
     &Apache::lonacc::get_posted_cgi($r);   &Apache::lonacc::get_posted_cgi($r);
   
             return OK;    return OK; 
         } else {       } else { 
             $r->log_reason("Cookie $handle not valid", $r->filename)    $r->log_reason("Cookie $handle not valid", $r->filename) 
         };  
     }      }
   
 # ----------------------------------------------- Store where they wanted to go  # ----------------------------------------------- Store where they wanted to go
Line 113  sub handler { Line 202  sub handler {
 1;  1;
 __END__  __END__
   
 =head1 NAME  
   
 Apache::lonacc - Cookie Based Access Handler for Construction Area  
   
 =head1 SYNOPSIS  
   
 Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf:  
   
  PerlAccessHandler       Apache::loncacc  
   
 =head1 INTRODUCTION  
   
 This module enables cookie based authentication for construction area  
 and is used to control access for three (essentially equivalent) URIs.  
   
  <LocationMatch "^/priv.*">  
  <LocationMatch "^/\~.*">  
  <LocationMatch "^/\~.*/$">  
   
 Whenever the client sends the cookie back to the server,   
 if the cookie is missing or invalid, the user is re-challenged  
 for login information.  
   
 This is part of the LearningOnline Network with CAPA project  
 described at http://www.lon-capa.org.  
   
 =head1 HANDLER SUBROUTINE  
   
 This routine is called by Apache and mod_perl.  
   
 =over 4  
   
 =item *  
   
 load POST parameters  
   
 =item *  
   
 store where they wanted to go (first url entered)  
   
 =back  
   
 =head1 OTHERSUBROUTINES  
   
 =over 4  
   
 =item *  
   
 constructaccess($url,$ownerdomain) : See if the owner domain and name  
 in the URL match those in the expected environment.  If so, return   
 two element list ($ownername,$ownerdomain).  Else, return null string.  
   
 =back  
   
 =cut  
   
   
   
Removed from v.1.44  
changed lines
  Added in v.1.51

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>