Annotation of loncom/auth/lonacc.pm, revision 1.19
1.1 albertel 1: # The LearningOnline Network
2: # Cookie Based Access Handler
1.4 www 3: # 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11,
1.14 www 4: # 01/06,01/13,05/31,06/01,09/06,09/25,09/28,10/30,11/6,
1.17 www 5: # 12/25,12/26,
1.19 ! www 6: # 01/06/01,05/28,8/11 Gerd Kortemeyer
1.1 albertel 7:
8: package Apache::lonacc;
9:
10: use strict;
1.8 www 11: use Apache::Constants qw(:common :http :methods);
1.2 www 12: use Apache::File;
1.6 www 13: use Apache::lonnet;
1.1 albertel 14: use CGI::Cookie();
1.16 www 15: use Fcntl qw(:flock);
1.1 albertel 16:
17: sub handler {
18: my $r = shift;
19: my $requrl=$r->uri;
20: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
21: my $lonid=$cookies{'lonID'};
22: my $cookie;
23: if ($lonid) {
24: my $handle=$lonid->value;
25: $handle=~s/\W//g;
26: my $lonidsdir=$r->dir_config('lonIDsDir');
27: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
1.6 www 28:
29: # ------------------------------------------- Transfer profile into environment
30:
1.2 www 31: my @profile;
32: {
33: my $idf=Apache::File->new("$lonidsdir/$handle.id");
1.16 www 34: flock($idf,LOCK_SH);
1.2 www 35: @profile=<$idf>;
1.16 www 36: $idf->close();
1.2 www 37: }
38: my $envi;
39: for ($envi=0;$envi<=$#profile;$envi++) {
40: chomp($profile[$envi]);
41: my ($envname,$envvalue)=split(/=/,$profile[$envi]);
1.9 www 42: $ENV{$envname} = $envvalue;
1.2 www 43: }
1.9 www 44: $ENV{'user.environment'} = "$lonidsdir/$handle.id";
1.18 www 45: if ($requrl=~/^\/res\//) {
1.17 www 46: $ENV{'request.state'} = "published";
47: } else {
48: $ENV{'request.state'} = 'unknown';
49: }
1.9 www 50: $ENV{'request.filename'} = $r->filename;
1.12 www 51:
1.13 www 52: # --------------------- Figure out referer, first from HTTP_REFERER, then cache
1.12 www 53:
54: my $referer='';
55: if ($referer=$r->header_in('Referer')) {
56: $ENV{'HTTP_REFERER'}=$referer;
57: } else {
58: $ENV{'HTTP_REFERER'}=$ENV{'httpref.'.$requrl};
59: }
1.6 www 60:
1.19 ! www 61: # ------------------------------------------- Still no referer? Check wildcards
! 62: unless ($ENV{'HTTP_REFERER'}) {
! 63: map {
! 64: if ($_=~/^httpref\..*\*/) {
! 65: my $pattern=$_;
! 66: $pattern=~s/\*/\[\^\/\]\+/g;
! 67: $pattern=~s/\//\\\//g;
! 68: if ($requrl=~/$pattern/) {
! 69: $ENV{'HTTP_REFERER'}=$ENV{$_};
! 70: }
! 71: }
! 72: } keys %ENV;
! 73: }
1.6 www 74: # -------------------------------------------------------- Load POST parameters
75:
1.8 www 76:
77:
1.14 www 78: my $buffer;
1.6 www 79:
1.14 www 80: $r->read($buffer,$r->header_in('Content-length'));
81:
82: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
1.5 www 83: my @pairs=split(/&/,$buffer);
1.6 www 84: my $pair;
1.5 www 85: foreach $pair (@pairs) {
1.6 www 86: my ($name,$value) = split(/=/,$pair);
87: $value =~ tr/+/ /;
88: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.10 www 89: $name =~ tr/+/ /;
90: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.9 www 91: $ENV{"form.$name"}=$value;
1.6 www 92: }
1.14 www 93: } else {
94: my $contentsep=$1;
95: my @lines = split (/\n/,$buffer);
96: my $name='';
97: my $value='';
98: my $fname='';
99: my $fmime='';
100: my $i;
101: for ($i=0;$i<=$#lines;$i++) {
102: if ($lines[$i]=~/^$contentsep/) {
103: if ($name) {
104: chomp($value);
105: if ($fname) {
106: $ENV{"form.$name.filename"}=$fname;
107: $ENV{"form.$name.mimetype"}=$fmime;
1.15 www 108: } else {
109: $value=~s/\s+$//s;
1.14 www 110: }
1.15 www 111: $ENV{"form.$name"}=$value;
1.14 www 112: }
113: if ($i<$#lines) {
114: $i++;
115: $lines[$i]=~
116: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
117: $name=$1;
118: $value='';
119: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
120: $fname=$1;
121: if
122: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
123: $fmime=$1;
124: $i++;
125: } else {
126: $fmime='';
127: }
128: } else {
129: $fname='';
130: $fmime='';
131: }
132: $i++;
133: }
134: } else {
135: $value.=$lines[$i]."\n";
136: }
137: }
138: }
1.8 www 139: $r->method_number(M_GET);
140: $r->method('GET');
141: $r->headers_in->unset('Content-length');
1.6 www 142:
143: # ---------------------------------------------------------------- Check access
144:
145: if ($requrl!~/^\/adm\//) {
1.7 www 146: my $access=&Apache::lonnet::allowed('bre',$requrl);
147: if ($access eq '1') {
148: $ENV{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
149: return HTTP_NOT_ACCEPTABLE;
150: }
151: if (($access ne '2') && ($access ne 'F')) {
152: $ENV{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
153: return HTTP_NOT_ACCEPTABLE;
154: }
1.5 www 155: }
1.2 www 156: return OK;
1.1 albertel 157: } else {
1.5 www 158: $r->log_reason("Cookie $handle not valid", $r->filename)
1.1 albertel 159: };
160: }
1.6 www 161:
162: # ----------------------------------------------- Store where they wanted to go
163:
164: $ENV{'request.firsturl'}=$requrl;
1.1 albertel 165: return FORBIDDEN;
166: }
167:
168: 1;
169: __END__
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