--- loncom/auth/loncacc.pm	1999/10/13 17:48:52	1.1.1.1
+++ loncom/auth/loncacc.pm	2002/01/04 14:57:14	1.19
@@ -1,13 +1,39 @@
 # The LearningOnline Network
 # Cookie Based Access Handler for Construction Area
 # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)
-# 6/15 Gerd Kortemeyer
+# 6/15,16/11,22/11,
+# 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
 
 package Apache::loncacc;
 
 use strict;
-use Apache::Constants qw(:common :http);
+use Apache::Constants qw(:common :http :methods);
+use Apache::File;
 use CGI::Cookie();
+use Fcntl qw(:flock);
+
+sub constructaccess {
+    my ($url,$ownerdomain)=@_;
+    my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);
+    unless (($ownername) && ($ownerdomain)) { return ''; }
+
+    if (($ownername eq $ENV{'user.name'}) &&
+        ($ownerdomain eq $ENV{'user.domain'})) {
+	return ($ownername,$ownerdomain);
+    }
+
+    my $capriv='user.priv.ca./'.
+               $ownerdomain.'/'.$ownername.'./'.
+	       $ownerdomain.'/'.$ownername;
+    map {
+        if ($_ eq $capriv) {
+           return ($ownername,$ownerdomain);
+        }
+    } keys %ENV;
+
+    return '';
+}
 
 sub handler {
     my $r = shift;
@@ -20,26 +46,106 @@ sub handler {
         $handle=~s/\W//g;
         my $lonidsdir=$r->dir_config('lonIDsDir');
         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
-            my $ownername=$requrl;
-            $ownername=~s/\/\~(\w+).*/\1/;
-            my $ownerdomain=$r->dir_config('lonDefDomain');
-            my @handleparts=split(/\_/,$handle);
-            my $username=$handleparts[0];
-            my $domain=$handleparts[2];
-            if (($username ne $ownername) || ($domain ne $ownerdomain)) {
-                $r->log_reason
-                   ("$username at $domain not authorized", $r->filename); 
+            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";
+            $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;
             }
+
+# -------------------------------------------------------- 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');
+
             return OK; 
         } else { 
             $r->log_reason("Cookie $handle not valid", $r->filename) 
         };
     }
-    $cookie=CGI::Cookie->new(-name  => 'lonURL',
-                             -value => $requrl, 
-                             -path  => '/');
-    $r->err_headers_out->add('Set-Cookie' => $cookie);
+
+# ----------------------------------------------- Store where they wanted to go
+
+    $ENV{'request.firsturl'}=$requrl;
     return FORBIDDEN;
 }