Annotation of loncom/auth/lonauth.pm, revision 1.33
1.1 albertel 1: # The LearningOnline Network
2: # User Authentication Module
1.27 www 3: #
1.33 ! albertel 4: # $Id: lonauth.pm,v 1.32 2002/09/14 05:45:45 albertel Exp $
1.27 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.2 www 28: # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
1.4 www 29: # 16/11,12/16,
1.9 www 30: # 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29,
1.19 www 31: # 7/1,7/10,10/2,10/5,10/9,10/26,10/30,11/10,
32: # 05/28,05/29 Gerd Kortemeyer
1.20 harris41 33: # 07/24 Scott Harrison
1.22 www 34: # 07/28,08/03 Gerd Kortemeyer
1.23 harris41 35: # 8/15 Scott Harrison
1.24 www 36: # 8/20 Gerd Kortemeyer
1.1 albertel 37:
38: package Apache::lonauth;
39:
1.18 albertel 40: use strict;
1.1 albertel 41: use Apache::Constants qw(:common);
42: use Apache::File;
43: use CGI qw(:standard);
44: use CGI::Cookie();
1.26 harris41 45: use DynaLoader; # for Crypt::DES version
1.8 www 46: use Crypt::DES;
1.1 albertel 47: use Apache::lonnet();
1.12 www 48: use Apache::lonmenu();
1.18 albertel 49: use Fcntl qw(:flock);
1.1 albertel 50: # ------------------------------------------------------------ Successful login
51:
52: sub success {
1.6 www 53: my ($r, $username, $domain, $authhost,$lowerurl) = @_;
1.1 albertel 54: my $lonids=$r->dir_config('lonIDsDir');
1.4 www 55:
56: # See if old ID present, if so, remove
1.17 www 57:
58: my $filename;
59: opendir(DIR,$lonids);
60: while ($filename=readdir(DIR)) {
61: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
62: unlink($lonids.'/'.$filename);
63: }
1.4 www 64: }
1.17 www 65: closedir(DIR);
1.4 www 66:
67: # Give them a new cookie
68:
1.17 www 69: my $cookie;
1.5 www 70: my $now=time;
71: $cookie="$username\_$now\_$domain\_$authhost";
72:
73: # Initialize roles
74:
75: my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
76:
1.7 www 77: # ------------------------------------ Check browser type and MathML capability
1.6 www 78:
79: my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet"));
80: my %mathcap=split(/\&/,$r->dir_config("lonMathML"));
81: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
82: my $i;
83: my $clientbrowser='unknown';
84: my $clientversion='0';
85: my $clientmathml='';
1.33 ! albertel 86: my $clientunicode='0';
1.6 www 87: for ($i=0;$i<=$#browsertype;$i++) {
1.33 ! albertel 88: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1.6 www 89: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
90: $clientbrowser=$bname;
91: $httpbrowser=~/$vreg/i;
92: $clientversion=$1;
93: $clientmathml=($clientversion>=$minv);
1.33 ! albertel 94: $clientunicode=($clientversion>=$univ);
! 95: }
1.6 www 96: }
97: my $clientos='unknown';
98: if (($httpbrowser=~/linux/i) ||
99: ($httpbrowser=~/unix/i) ||
100: ($httpbrowser=~/ux/i) ||
101: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
102: if (($httpbrowser=~/vax/i) ||
103: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
104: if ($httpbrowser=~/next/i) { $clientos='next'; }
105: if (($httpbrowser=~/mac/i) ||
106: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1.10 www 107: if ($httpbrowser=~/win/i) { $clientos='win'; }
1.31 www 108: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1.6 www 109:
1.11 www 110: # ------------------------------------------------------------- Get environment
111:
1.32 albertel 112: my $userenv;
113: my %userenv=Apache::lonnet::dump('environment',$domain,$username);
114: my ($tmp) = keys(%userenv);
115: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
116: foreach my $key (keys(%userenv)) {
117: $userenv.="environment.$key=$userenv{$key}\n";
118: }
1.11 www 119: }
1.7 www 120: # --------------------------------------------------------- Write first profile
1.5 www 121:
122: {
1.1 albertel 123: my $idf=Apache::File->new(">$lonids/$cookie.id");
1.18 albertel 124: unless (flock($idf,LOCK_EX)) {
125: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
1.19 www 126: 'Could not obtain exclusive lock in lonauth: '.$!);
1.18 albertel 127: $idf->close();
128: return 'error: '.$!;
129: }
1.11 www 130: if ($userenv ne '') { print $idf "$userenv\n"; }
1.4 www 131: print $idf "user.name=$username\n";
132: print $idf "user.domain=$domain\n";
133: print $idf "user.home=$authhost\n";
1.6 www 134: print $idf "browser.type=$clientbrowser\n";
135: print $idf "browser.version=$clientversion\n";
136: print $idf "browser.mathml=$clientmathml\n";
1.33 ! albertel 137: print $idf "browser.unicode=$clientunicode\n";
1.6 www 138: print $idf "browser.os=$clientos\n";
1.15 www 139: print $idf "request.course.fn=\n";
140: print $idf "request.course.uri=\n";
141: print $idf "request.course.sec=\n";
1.16 www 142: print $idf "request.role=cm\n";
143: print $idf "request.host=$ENV{'HTTP_HOST'}\n";
1.11 www 144: if ($userroles ne '') { print $idf "$userroles"; }
1.18 albertel 145: $idf->close();
1.1 albertel 146: }
1.19 www 147: $ENV{'request.role'}='cm';
1.28 www 148: $ENV{'browser.type'}=$clientbrowser;
1.7 www 149: # -------------------------------------------------------------------- Log this
150:
151: &Apache::lonnet::log($domain,$username,$authhost,
152: "Login $ENV{'REMOTE_ADDR'}");
1.4 www 153:
1.14 www 154: # ------------------------------------------------- Check for critical messages
155:
1.21 www 156: my @what=&Apache::lonnet::dump('critical',$domain,$username);
1.14 www 157: if ($what[0]) {
1.22 www 158: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
1.21 www 159: $lowerurl='/adm/email?critical=display';
1.14 www 160: }
161: }
162:
1.5 www 163: # ------------------------------------------------------------ Get cookie ready
164:
1.1 albertel 165: $cookie="lonID=$cookie; path=/";
1.12 www 166: # -------------------------------------------------------- Menu script and info
1.31 www 167: my $windowinfo=&Apache::lonmenu::open($clientos);
1.19 www 168: # ------------------------------------------------------------- Info for Remote
1.29 matthew 169: my $configmenu=&Apache::lonmenu::rawconfig($r);
1.5 www 170: # ------------------------------------------------- Output for successful login
171:
1.1 albertel 172: $r->send_cgi_header(<<ENDHEADER);
173: Content-type: text/html
174: Set-cookie: $cookie
175:
176: ENDHEADER
177: $r->print(<<ENDSUCCESS);
178: <html>
179: <head>
1.4 www 180: <title>Successful Login to the LearningOnline Network with CAPA</title>
1.19 www 181: <script>
182:
183: // --------------------------------------------- Checks if server frame defined
184:
185: function checkdef() {
186: if ((menuloaded==0) && (tim==0)) { setTimeout('checkdef()',100); }
187: }
188:
189: // ---------------------------------------------------------- The wait function
1.30 matthew 190: var canceltim;
1.19 www 191: function wait() {
192: if ((menuloaded==1) || (tim==1)) {
193: if (tim==0) {
194: clearTimeout(canceltim);
195: $configmenu
196: window.location='$lowerurl';
197: } else {
198: alert("Remote Control Timed Out.");
199: }
200: } else {
201: setTimeout('wait();',100);
202: }
203: }
204:
205: function main() {
1.23 harris41 206: canceltim=setTimeout('tim=1;',80000);
1.19 www 207: checkdef();
208: wait();
209: }
210:
211: </script>
1.1 albertel 212: </head>
1.20 harris41 213: <body bgcolor="#FFFFFF">
1.19 www 214: <script>
215: menuloaded=0;
216: tim=0;
217: </script>
218: $windowinfo
1.6 www 219: <h1>Welcome!</h1>
1.20 harris41 220: <script>
221: main();
222: </script>
1.6 www 223: </body>
1.1 albertel 224: </html>
225: ENDSUCCESS
226: }
227:
228: # --------------------------------------------------------------- Failed login!
229:
230: sub failed {
231: my ($r,$message) = @_;
232: $r->send_cgi_header(<<ENDFHEADER);
233: Content-type: text/html
234:
235: ENDFHEADER
236: $r->print(<<ENDFAILED);
237: <html>
238: <head>
1.4 www 239: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
1.1 albertel 240: </head>
241: <html>
242: <body bgcolor="#FFFFFF">
243: <h1>Sorry ...</h1>
1.4 www 244: <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>
1.1 albertel 245: </body>
246: </html>
247: ENDFAILED
248: }
249:
250: # ---------------------------------------------------------------- Main handler
251:
252: sub handler {
253: my $r = shift;
254:
255: my $buffer;
256: $r->read($buffer,$r->header_in('Content-length'));
257: my @pairs=split(/&/,$buffer);
258: my $pair; my $name; my $value; my %FORM;
259: foreach $pair (@pairs) {
260: ($name,$value) = split(/=/,$pair);
1.7 www 261: $value =~ tr/+/ /;
262: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.1 albertel 263: $FORM{$name}=$value;
264: }
265:
266: if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
267: failed($r,'Username, password and domain need to be specified');
268: return OK;
269: }
270: $FORM{'uname'} =~ s/\W//g;
271: $FORM{'udom'} =~ s/\W//g;
272:
273: my $role = $r->dir_config('lonRole');
274: my $domain = $r->dir_config('lonDefDomain');
275: my $prodir = $r->dir_config('lonUsersDir');
276:
1.8 www 277: # ---------------------------------------- Get the information from login token
278:
279: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
280: $FORM{'serverid'});
281:
282: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
283: failed($r,'Login token missing, inaccessible or expired');
284: return OK;
285: }
286:
1.9 www 287: my ($key,$firsturl)=split(/&/,$tmpinfo);
1.8 www 288:
289: my $keybin=pack("H16",$key);
290:
1.26 harris41 291: my $cipher;
292: if ($Crypt::DES::VERSION>=2.03) {
293: $cipher=new Crypt::DES $keybin;
294: }
295: else {
296: $cipher=new DES $keybin;
297: }
1.8 www 298:
299: my $upass=$cipher->decrypt(
300: unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
301:
302: $upass.=$cipher->decrypt(
303: unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
304:
305: $upass=substr($upass,1,ord(substr($upass,0,1)));
306:
1.1 albertel 307: # ---------------------------------------------------------------- Authenticate
308: my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
1.8 www 309: $upass,
1.1 albertel 310: $FORM{'udom'});
311:
312: # --------------------------------------------------------------------- Failed?
313:
314: if ($authhost eq 'no_host') {
315: failed($r,'Username and/or password could not be authenticated');
316: return OK;
317: }
318:
1.13 www 319: if (($firsturl eq '') || ($firsturl eq '/adm/logout')) {
1.24 www 320: $firsturl='/adm/roles';
1.7 www 321: }
1.1 albertel 322:
1.8 www 323: success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
1.1 albertel 324: return OK;
325: }
326:
327: 1;
328: __END__
1.7 www 329:
330:
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