--- loncom/auth/loncacc.pm	2002/01/04 15:10:54	1.20
+++ loncom/auth/loncacc.pm	2004/08/23 18:58:20	1.36
@@ -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 1.20 2002/01/04 15:10:54 www Exp $
+# $Id: loncacc.pm,v 1.36 2004/08/23 18:58:20 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,7 +31,6 @@
 # YEAR=2001
 # 01/06,01/11,6/1,9/25,9/28,11/22,12/25,12/26,
 # 01/06/01,05/04,05/05,05/09 Gerd Kortemeyer
-# 12/21 Scott Harrison
 # YEAR=2002
 # 1/4 Gerd Kortemeyer
 ###
@@ -39,36 +38,44 @@
 package Apache::loncacc;
 
 use strict;
-use Apache::Constants qw(:common :http :methods);
+use Apache::Constants qw(:common :http :methods REDIRECT);
 use Apache::File;
 use CGI::Cookie();
 use Fcntl qw(:flock);
+use Apache::lonlocal;
+use Apache::lonnet();
+
 
 sub constructaccess {
     my ($url,$ownerdomain)=@_;
-    my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);
+    my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)\//);
     unless (($ownername) && ($ownerdomain)) { return ''; }
-
-    if (($ownername eq $ENV{'user.name'}) &&
-        ($ownerdomain eq $ENV{'user.domain'})) {
-	return ($ownername,$ownerdomain);
+    # We do not allow editing of previous versions of files.
+    if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
+    my @possibledomains = &Apache::lonnet::current_machine_domains();
+    if ($ownername eq $ENV{'user.name'}) {
+	foreach my $domain (@possibledomains) {
+	    if ($domain eq $ENV{'user.domain'}) {
+		return ($ownername,$domain);
+	    }
+	}
     }
-
-    my $capriv='user.priv.ca./'.
-               $ownerdomain.'/'.$ownername.'./'.
-	       $ownerdomain.'/'.$ownername;
-    foreach (keys %ENV) {
-        if ($_ eq $capriv) {
-           return ($ownername,$ownerdomain);
-        }
+    
+    foreach my $domain (@possibledomains) {
+	my $capriv='user.priv.ca./'.$domain.'/'.$ownername.'./';
+	foreach (keys %ENV) {
+	    if ($_ eq $capriv) {
+		return ($ownername,$domain);
+	    }
+	}
     }
-
     return '';
 }
 
 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;
@@ -77,20 +84,17 @@ sub handler {
         $handle=~s/\W//g;
         my $lonidsdir=$r->dir_config('lonIDsDir');
         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
-            my @profile;
-	    {
-             my $idf=Apache::File->new("$lonidsdir/$handle.id");
-             flock($idf,LOCK_SH);
-             @profile=<$idf>;
-             $idf->close();
-	    }
-            my $envi;
-            for ($envi=0;$envi<=$#profile;$envi++) {
-		chomp($profile[$envi]);
-		my ($envname,$envvalue)=split(/=/,$profile[$envi]);
-                $ENV{$envname} = $envvalue;
-            }
-            $ENV{'user.environment'} = "$lonidsdir/$handle.id";
+
+# ------------------------------------------------------ Initialize Environment
+
+            &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
+
+# --------------------------------------------------------- Initialize Language
+ 
+ 	    &Apache::lonlocal::get_language_handle($r);
+
+# -------------------------------------------------------------- Resource State
+
             $ENV{'request.state'}    = "construct";
             $ENV{'request.filename'} = $r->filename;
 
@@ -98,75 +102,19 @@ sub handler {
                 $r->log_reason("Unauthorized $requrl", $r->filename); 
 	        return HTTP_NOT_ACCEPTABLE;
             }
+# Construction space needs Remote to work
+            if ($ENV{'environment.remote'} eq 'off') {
+	        $r->content_type('text/html');
+                $r->header_out(Location => 
+                    'http://'.$r->server->server_hostname.
+                    '/adm/remote?action=launch&url='.
+                    &Apache::lonnet::escape($requrl));
+                return REDIRECT;
+            }
 
 # -------------------------------------------------------- Load POST parameters
 
-
-        my $buffer;
-
-        $r->read($buffer,$r->header_in('Content-length'));
-
-	unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
-            my @pairs=split(/&/,$buffer);
-            my $pair;
-            foreach $pair (@pairs) {
-               my ($name,$value) = split(/=/,$pair);
-               $value =~ tr/+/ /;
-               $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-               $name  =~ tr/+/ /;
-               $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-               $ENV{"form.$name"}=$value;
-            } 
-        } else {
-	    my $contentsep=$1;
-            my @lines = split (/\n/,$buffer);
-            my $name='';
-            my $value='';
-            my $fname='';
-            my $fmime='';
-            my $i;
-            for ($i=0;$i<=$#lines;$i++) {
-		if ($lines[$i]=~/^$contentsep/) {
-		    if ($name) {
-                        chomp($value);
-			if ($fname) {
-			    $ENV{"form.$name.filename"}=$fname;
-                            $ENV{"form.$name.mimetype"}=$fmime;
-                        } else {
-                            $value=~s/\s+$//s;
-                        }
-                        $ENV{"form.$name"}=$value;
-                    }
-                    if ($i<$#lines) {
-			$i++;
-                        $lines[$i]=~
-		 /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
-                        $name=$1;
-                        $value='';
-                        if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
-			   $fname=$1;
-                           if 
-                            ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
-			      $fmime=$1;
-                              $i++;
-			   } else {
-                              $fmime='';
-                           }
-                        } else {
-			    $fname='';
-                            $fmime='';
-                        }
-                        $i++;
-                    }
-                } else {
-		    $value.=$lines[$i]."\n";
-                }
-            }
-	}
-            $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
-            $r->method_number(M_GET);
-	    $r->method('GET');
-            $r->headers_in->unset('Content-length');
+	    &Apache::loncommon::get_posted_cgi($r);
 
             return OK; 
         } else { 
@@ -189,7 +137,7 @@ Apache::lonacc - Cookie Based Access Han
 
 =head1 SYNOPSIS
 
-Invoked (for various locations) by /etc/httpd/conf/srm.conf:
+Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf:
 
  PerlAccessHandler       Apache::loncacc