--- loncom/auth/lonacc.pm	1999/10/13 17:48:52	1.1
+++ loncom/auth/lonacc.pm	2001/11/29 21:54:56	1.23
@@ -1,12 +1,43 @@
 # The LearningOnline Network
 # Cookie Based Access Handler
-# 5/21/99,5/22,5/29,5/31,6/15 Gerd Kortemeyer
+#
+# $Id: lonacc.pm,v 1.23 2001/11/29 21:54:56 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+# 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11,
+# 01/06,01/13,05/31,06/01,09/06,09/25,09/28,10/30,11/6,
+# 12/25,12/26,
+# 01/06/01,05/28,8/11,9/26,11/29 Gerd Kortemeyer
 
 package Apache::lonacc;
 
 use strict;
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common :http :methods);
+use Apache::File;
+use Apache::lonnet;
 use CGI::Cookie();
+use Fcntl qw(:flock);
 
 sub handler {
     my $r = shift;
@@ -19,25 +50,146 @@ sub handler {
         $handle=~s/\W//g;
         my $lonidsdir=$r->dir_config('lonIDsDir');
         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
-           return OK; 
+
+# ------------------------------------------- Transfer profile into environment
+
+            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/$handle.id";
+            if ($requrl=~/^\/res\//) {
+               $ENV{'request.state'} = "published";
+	    } else {
+	       $ENV{'request.state'} = 'unknown';
+            }
+            $ENV{'request.filename'} = $r->filename;
+
+# -------------------------------------------------------- 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";
+                }
+            }
+	}
+            $r->method_number(M_GET);
+	    $r->method('GET');
+            $r->headers_in->unset('Content-length');
+
+# ---------------------------------------------------------------- Check access
+
+            if ($requrl!~/^\/adm\//) {
+		my $access=&Apache::lonnet::allowed('bre',$requrl);
+                if ($access eq '1') {
+		   $ENV{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
+	           return HTTP_NOT_ACCEPTABLE; 
+                }
+                if (($access ne '2') && ($access ne 'F')) {
+		   $ENV{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
+	           return HTTP_NOT_ACCEPTABLE; 
+                }
+            }
+# ------------------------------------------------------------- This is allowed
+          if ($ENV{'request.course.id'}) {
+            $requrl=~/\.(\w+)$/;
+            if (&Apache::lonnet::fileembstyle($1) eq 'ssi') {
+# ------------------------------------- This is serious stuff, get symb and log
+		my $symb=&Apache::lonnet::symbread;
+                $ENV{'request.symb'}=$symb;
+                &Apache::lonnet::courseacclog($symb);
+            } else {
+# ------------------------------------------------------- This is other content
+                &Apache::lonnet::courseacclog($requrl);    
+            }
+	  }
+            return OK; 
         } else { 
-           $r->log_reason("Cookie $handle not valid", $r->filename) 
+            $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' => $cookie);
+
+# -------------------------------------------- See if this is a public resource
+    if (&Apache::lonnet::metadata($requrl,'copyright') eq 'public') {
+        &Apache::lonnet::logthis('Granting public access: '.$requrl);
+	$ENV{'user.name'}='public';
+        $ENV{'user.domain'}='public';
+        $ENV{'request.state'} = "published";
+        $ENV{'request.publicaccess'} = 1;
+        $ENV{'request.filename'} = $r->filename;
+        return OK;
+    }
+# ----------------------------------------------- Store where they wanted to go
+    
+    $ENV{'request.firsturl'}=$requrl;
     return FORBIDDEN;
 }
 
 1;
 __END__
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