1: # The LearningOnline Network
2: # User Authentication Module
3: # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
4: # 16/11,12/16,
5: # 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29 Gerd Kortemeyer
6:
7: package Apache::lonauth;
8:
9: use Apache::Constants qw(:common);
10: use Apache::File;
11: use CGI qw(:standard);
12: use CGI::Cookie();
13: use Crypt::DES;
14: use Apache::lonnet();
15:
16: # ------------------------------------------------------------ Successful login
17:
18: sub success {
19: my ($r, $username, $domain, $authhost,$lowerurl) = @_;
20: my $lonids=$r->dir_config('lonIDsDir');
21:
22: # See if old ID present, if so, remove
23: my $cookie;
24: while ($cookie=<$lonids/$username\_*\_$domain\_$authhost.id>) {
25: unlink($cookie);
26: }
27:
28: # Give them a new cookie
29:
30: my $now=time;
31: $cookie="$username\_$now\_$domain\_$authhost";
32:
33: # Initialize roles
34:
35: my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
36:
37: # ------------------------------------ Check browser type and MathML capability
38:
39: my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet"));
40: my %mathcap=split(/\&/,$r->dir_config("lonMathML"));
41: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
42: my $i;
43: my $clientbrowser='unknown';
44: my $clientversion='0';
45: my $clientmathml='';
46: for ($i=0;$i<=$#browsertype;$i++) {
47: my ($bname,$match,$notmatch,$vreg,$minv)=split(/\:/,$browsertype[$i]);
48: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
49: $clientbrowser=$bname;
50: $httpbrowser=~/$vreg/i;
51: $clientversion=$1;
52: $clientmathml=($clientversion>=$minv);
53: }
54: }
55: my $clientos='unknown';
56: if (($httpbrowser=~/linux/i) ||
57: ($httpbrowser=~/unix/i) ||
58: ($httpbrowser=~/ux/i) ||
59: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
60: if (($httpbrowser=~/vax/i) ||
61: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
62: if ($httpbrowser=~/next/i) { $clientos='next'; }
63: if (($httpbrowser=~/mac/i) ||
64: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
65: if ($httpbrowser=~/win/) { $clientos='win'; }
66:
67: # --------------------------------------------------------- Write first profile
68:
69: {
70: my $idf=Apache::File->new(">$lonids/$cookie.id");
71: print $idf "user.name=$username\n";
72: print $idf "user.domain=$domain\n";
73: print $idf "user.home=$authhost\n";
74: print $idf "browser.type=$clientbrowser\n";
75: print $idf "browser.version=$clientversion\n";
76: print $idf "browser.mathml=$clientmathml\n";
77: print $idf "browser.os=$clientos\n";
78: if ($userroles ne '') { print $idf "$userroles" };
79: }
80: # -------------------------------------------------------------------- Log this
81:
82: &Apache::lonnet::log($domain,$username,$authhost,
83: "Login $ENV{'REMOTE_ADDR'}");
84:
85: # ------------------------------------------------------------ Get cookie ready
86:
87: $cookie="lonID=$cookie; path=/";
88:
89: # ------------------------------------------------- Output for successful login
90:
91: $r->send_cgi_header(<<ENDHEADER);
92: Content-type: text/html
93: Set-cookie: $cookie
94:
95: ENDHEADER
96: $r->print(<<ENDSUCCESS);
97: <html>
98: <head>
99: <title>Successful Login to the LearningOnline Network with CAPA</title>
100: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$lowerurl">
101: </head>
102: <body bgcolor="#FFFFFF">
103: <script>
104: menu=window.open("/res/adm/pages/menu.html","LONCAPAmenu",
105: "height=350,width=150,scrollbars=no,menubar=no");
106: </script>
107: <h1>Welcome!</h1>
108: </body>
109: </html>
110: ENDSUCCESS
111: }
112:
113: # --------------------------------------------------------------- Failed login!
114:
115: sub failed {
116: my ($r,$message) = @_;
117: $r->send_cgi_header(<<ENDFHEADER);
118: Content-type: text/html
119:
120: ENDFHEADER
121: $r->print(<<ENDFAILED);
122: <html>
123: <head>
124: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
125: </head>
126: <html>
127: <body bgcolor="#FFFFFF">
128: <h1>Sorry ...</h1>
129: <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>
130: </body>
131: </html>
132: ENDFAILED
133: }
134:
135: # ---------------------------------------------------------------- Main handler
136:
137: sub handler {
138: my $r = shift;
139:
140: my $buffer;
141: $r->read($buffer,$r->header_in('Content-length'));
142: my @pairs=split(/&/,$buffer);
143: my $pair; my $name; my $value; my %FORM;
144: foreach $pair (@pairs) {
145: ($name,$value) = split(/=/,$pair);
146: $value =~ tr/+/ /;
147: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
148: $FORM{$name}=$value;
149: }
150:
151: if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
152: failed($r,'Username, password and domain need to be specified');
153: return OK;
154: }
155: $FORM{'uname'} =~ s/\W//g;
156: $FORM{'udom'} =~ s/\W//g;
157:
158: my $role = $r->dir_config('lonRole');
159: my $domain = $r->dir_config('lonDefDomain');
160: my $prodir = $r->dir_config('lonUsersDir');
161:
162: # ---------------------------------------- Get the information from login token
163:
164: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
165: $FORM{'serverid'});
166:
167: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
168: failed($r,'Login token missing, inaccessible or expired');
169: return OK;
170: }
171:
172: my ($key,$firsturl)=split(/:/,$tmpinfo);
173:
174: my $keybin=pack("H16",$key);
175:
176: my $cipher=new DES $keybin;
177:
178: my $upass=$cipher->decrypt(
179: unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
180:
181: $upass.=$cipher->decrypt(
182: unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
183:
184: $upass=substr($upass,1,ord(substr($upass,0,1)));
185:
186: # ---------------------------------------------------------------- Authenticate
187: my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
188: $upass,
189: $FORM{'udom'});
190:
191: # --------------------------------------------------------------------- Failed?
192:
193: if ($authhost eq 'no_host') {
194: failed($r,'Username and/or password could not be authenticated');
195: return OK;
196: }
197:
198: if ($firsturl eq '') {
199: $firsturl='/res/adm/pages/index.html';
200: }
201:
202: success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
203: return OK;
204: }
205:
206: 1;
207: __END__
208:
209:
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