1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: # 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11,
4: # 01/06,01/13,05/31,06/01,09/06,09/25,09/28,10/30 Gerd Kortemeyer
5:
6: package Apache::lonacc;
7:
8: use strict;
9: use Apache::Constants qw(:common :http :methods);
10: use Apache::File;
11: use Apache::lonnet;
12: use CGI::Cookie();
13:
14: sub handler {
15: my $r = shift;
16: my $requrl=$r->uri;
17: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
18: my $lonid=$cookies{'lonID'};
19: my $cookie;
20: if ($lonid) {
21: my $handle=$lonid->value;
22: $handle=~s/\W//g;
23: my $lonidsdir=$r->dir_config('lonIDsDir');
24: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
25:
26: # ------------------------------------------- Transfer profile into environment
27:
28: my @profile;
29: {
30: my $idf=Apache::File->new("$lonidsdir/$handle.id");
31: @profile=<$idf>;
32: }
33: my $envi;
34: for ($envi=0;$envi<=$#profile;$envi++) {
35: chomp($profile[$envi]);
36: my ($envname,$envvalue)=split(/=/,$profile[$envi]);
37: $ENV{$envname} = $envvalue;
38: }
39: $ENV{'user.environment'} = "$lonidsdir/$handle.id";
40: $ENV{'request.state'} = "published";
41: $ENV{'request.filename'} = $r->filename;
42:
43: # ---- Figure out referer, first from HTTP_REFERER, then cache, then wild guess
44:
45: my $referer='';
46: if ($referer=$r->header_in('Referer')) {
47: $ENV{'HTTP_REFERER'}=$referer;
48: } else {
49: $ENV{'HTTP_REFERER'}=$ENV{'httpref.'.$requrl};
50: unless($ENV{'HTTP_REFERER'}) {
51: my $pathpart=$requrl;
52: $pathpart=~s/\/[\w\.]*$//;
53: map {
54: if ($_=~/^httpref.$pathpart/) {
55: $ENV{'HTTP_REFERER'}=$ENV{$_};
56: }
57: } keys %ENV;
58: }
59: }
60:
61: # -------------------------------------------------------- Load POST parameters
62:
63:
64:
65: my $buffer;
66:
67: $r->read($buffer,$r->header_in('Content-length'));
68: my @pairs=split(/&/,$buffer);
69: my $pair;
70: foreach $pair (@pairs) {
71: my ($name,$value) = split(/=/,$pair);
72: $value =~ tr/+/ /;
73: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
74: $name =~ tr/+/ /;
75: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
76: $ENV{"form.$name"}=$value;
77: }
78:
79: $r->method_number(M_GET);
80: $r->method('GET');
81: $r->headers_in->unset('Content-length');
82:
83: # ---------------------------------------------------------------- Check access
84:
85: if ($requrl!~/^\/adm\//) {
86: my $access=&Apache::lonnet::allowed('bre',$requrl);
87: if ($access eq '1') {
88: $ENV{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
89: return HTTP_NOT_ACCEPTABLE;
90: }
91: if (($access ne '2') && ($access ne 'F')) {
92: $ENV{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
93: return HTTP_NOT_ACCEPTABLE;
94: }
95: }
96: return OK;
97: } else {
98: $r->log_reason("Cookie $handle not valid", $r->filename)
99: };
100: }
101:
102: # ----------------------------------------------- Store where they wanted to go
103:
104: $ENV{'request.firsturl'}=$requrl;
105: return FORBIDDEN;
106: }
107:
108: 1;
109: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>