--- loncom/auth/loncacc.pm 2006/11/27 16:47:16 1.43 +++ loncom/auth/loncacc.pm 2009/04/11 21:42:58 1.49 @@ -2,7 +2,7 @@ # Cookie Based Access Handler for Construction Area # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer) # -# $Id: loncacc.pm,v 1.43 2006/11/27 16:47:16 albertel Exp $ +# $Id: loncacc.pm,v 1.49 2009/04/11 21:42:58 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,11 +27,69 @@ # 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. + + + + + +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; use strict; use Apache::Constants qw(:common :http :methods REDIRECT); -use CGI::Cookie(); use Fcntl qw(:flock); use Apache::lonlocal; use Apache::lonnet; @@ -39,7 +97,7 @@ use Apache::lonacc; use LONCAPA qw(:DEFAULT :match); sub constructaccess { - my ($url,$ownerdomain)=@_; + my ($url,$ownerdomain,$setpriv)=@_; my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)($match_username)\//); unless (($ownername) && ($ownerdomain)) { return ''; } # We do not allow editing of previous versions of files. @@ -59,47 +117,75 @@ sub constructaccess { return ($ownername,$domain); } } + + 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 $now = time; + &Apache::lonnet::check_adhoc_privs($ownerdomain,$ownername, + $then,$now,'ca'); + } + return($ownername,$ownerdomain); + } + } + } 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 { my $r = shift; my $requrl=$r->uri; $env{'request.editurl'}=$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 - &Apache::lonlocal::get_language_handle($r); + &Apache::lonlocal::get_language_handle($r); # -------------------------------------------------------------- Resource State - $env{'request.state'} = "construct"; - $env{'request.filename'} = $r->filename; + $env{'request.state'} = "construct"; + $env{'request.filename'} = $r->filename; - unless (&constructaccess($requrl,$r->dir_config('lonDefDomain'))) { - $r->log_reason("Unauthorized $requrl", $r->filename); - return HTTP_NOT_ACCEPTABLE; - } + unless (&constructaccess($requrl,$r->dir_config('lonDefDomain')),'setpriv') { + $r->log_reason("Unauthorized $requrl", $r->filename); + return HTTP_NOT_ACCEPTABLE; + } # -------------------------------------------------------- Load POST parameters - &Apache::lonacc::get_posted_cgi($r); + &Apache::lonacc::get_posted_cgi($r); - return OK; - } else { - $r->log_reason("Cookie $handle not valid", $r->filename) - }; + return OK; + } else { + $r->log_reason("Cookie $handle not valid", $r->filename) } # ----------------------------------------------- Store where they wanted to go @@ -111,61 +197,6 @@ sub handler { 1; __END__ -=head1 NAME - -Apache::lonacc - Cookie Based Access Handler for Construction Area - -=head1 SYNOPSIS - -Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf: - - PerlAccessHandler Apache::loncacc - -=head1 INTRODUCTION - -This module enables cookie based authentication for construction area -and is used to control access for three (essentially equivalent) URIs. - - - - - -Whenever the client sends the cookie back to the server, -if the cookie is missing or invalid, the user is re-challenged -for login information. - -This is part of the LearningOnline Network with CAPA project -described at http://www.lon-capa.org. - -=head1 HANDLER SUBROUTINE - -This routine is called by Apache and mod_perl. - -=over 4 - -=item * - -load POST parameters - -=item * - -store where they wanted to go (first url entered) - -=back - -=head1 OTHERSUBROUTINES - -=over 4 - -=item * - -constructaccess($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