Annotation of loncom/auth/lonauth.pm, revision 1.32
1.1 albertel 1: # The LearningOnline Network
2: # User Authentication Module
1.27 www 3: #
1.32 ! albertel 4: # $Id: lonauth.pm,v 1.31 2002/05/29 14:51:42 www 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 $clientmathml='';
86: for ($i=0;$i<=$#browsertype;$i++) {
87: my ($bname,$match,$notmatch,$vreg,$minv)=split(/\:/,$browsertype[$i]);
88: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
89: $clientbrowser=$bname;
90: $httpbrowser=~/$vreg/i;
91: $clientversion=$1;
92: $clientmathml=($clientversion>=$minv);
93: }
94: }
95: my $clientos='unknown';
96: if (($httpbrowser=~/linux/i) ||
97: ($httpbrowser=~/unix/i) ||
98: ($httpbrowser=~/ux/i) ||
99: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
100: if (($httpbrowser=~/vax/i) ||
101: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
102: if ($httpbrowser=~/next/i) { $clientos='next'; }
103: if (($httpbrowser=~/mac/i) ||
104: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1.10 www 105: if ($httpbrowser=~/win/i) { $clientos='win'; }
1.31 www 106: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1.6 www 107:
1.11 www 108: # ------------------------------------------------------------- Get environment
109:
1.32 ! albertel 110: my $userenv;
! 111: my %userenv=Apache::lonnet::dump('environment',$domain,$username);
! 112: my ($tmp) = keys(%userenv);
! 113: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
! 114: foreach my $key (keys(%userenv)) {
! 115: $userenv.="environment.$key=$userenv{$key}\n";
! 116: }
1.11 www 117: }
1.7 www 118: # --------------------------------------------------------- Write first profile
1.5 www 119:
120: {
1.1 albertel 121: my $idf=Apache::File->new(">$lonids/$cookie.id");
1.18 albertel 122: unless (flock($idf,LOCK_EX)) {
123: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
1.19 www 124: 'Could not obtain exclusive lock in lonauth: '.$!);
1.18 albertel 125: $idf->close();
126: return 'error: '.$!;
127: }
1.11 www 128: if ($userenv ne '') { print $idf "$userenv\n"; }
1.4 www 129: print $idf "user.name=$username\n";
130: print $idf "user.domain=$domain\n";
131: print $idf "user.home=$authhost\n";
1.6 www 132: print $idf "browser.type=$clientbrowser\n";
133: print $idf "browser.version=$clientversion\n";
134: print $idf "browser.mathml=$clientmathml\n";
135: print $idf "browser.os=$clientos\n";
1.15 www 136: print $idf "request.course.fn=\n";
137: print $idf "request.course.uri=\n";
138: print $idf "request.course.sec=\n";
1.16 www 139: print $idf "request.role=cm\n";
140: print $idf "request.host=$ENV{'HTTP_HOST'}\n";
1.11 www 141: if ($userroles ne '') { print $idf "$userroles"; }
1.18 albertel 142: $idf->close();
1.1 albertel 143: }
1.19 www 144: $ENV{'request.role'}='cm';
1.28 www 145: $ENV{'browser.type'}=$clientbrowser;
1.7 www 146: # -------------------------------------------------------------------- Log this
147:
148: &Apache::lonnet::log($domain,$username,$authhost,
149: "Login $ENV{'REMOTE_ADDR'}");
1.4 www 150:
1.14 www 151: # ------------------------------------------------- Check for critical messages
152:
1.21 www 153: my @what=&Apache::lonnet::dump('critical',$domain,$username);
1.14 www 154: if ($what[0]) {
1.22 www 155: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
1.21 www 156: $lowerurl='/adm/email?critical=display';
1.14 www 157: }
158: }
159:
1.5 www 160: # ------------------------------------------------------------ Get cookie ready
161:
1.1 albertel 162: $cookie="lonID=$cookie; path=/";
1.12 www 163: # -------------------------------------------------------- Menu script and info
1.31 www 164: my $windowinfo=&Apache::lonmenu::open($clientos);
1.19 www 165: # ------------------------------------------------------------- Info for Remote
1.29 matthew 166: my $configmenu=&Apache::lonmenu::rawconfig($r);
1.5 www 167: # ------------------------------------------------- Output for successful login
168:
1.1 albertel 169: $r->send_cgi_header(<<ENDHEADER);
170: Content-type: text/html
171: Set-cookie: $cookie
172:
173: ENDHEADER
174: $r->print(<<ENDSUCCESS);
175: <html>
176: <head>
1.4 www 177: <title>Successful Login to the LearningOnline Network with CAPA</title>
1.19 www 178: <script>
179:
180: // --------------------------------------------- Checks if server frame defined
181:
182: function checkdef() {
183: if ((menuloaded==0) && (tim==0)) { setTimeout('checkdef()',100); }
184: }
185:
186: // ---------------------------------------------------------- The wait function
1.30 matthew 187: var canceltim;
1.19 www 188: function wait() {
189: if ((menuloaded==1) || (tim==1)) {
190: if (tim==0) {
191: clearTimeout(canceltim);
192: $configmenu
193: window.location='$lowerurl';
194: } else {
195: alert("Remote Control Timed Out.");
196: }
197: } else {
198: setTimeout('wait();',100);
199: }
200: }
201:
202: function main() {
1.23 harris41 203: canceltim=setTimeout('tim=1;',80000);
1.19 www 204: checkdef();
205: wait();
206: }
207:
208: </script>
1.1 albertel 209: </head>
1.20 harris41 210: <body bgcolor="#FFFFFF">
1.19 www 211: <script>
212: menuloaded=0;
213: tim=0;
214: </script>
215: $windowinfo
1.6 www 216: <h1>Welcome!</h1>
1.20 harris41 217: <script>
218: main();
219: </script>
1.6 www 220: </body>
1.1 albertel 221: </html>
222: ENDSUCCESS
223: }
224:
225: # --------------------------------------------------------------- Failed login!
226:
227: sub failed {
228: my ($r,$message) = @_;
229: $r->send_cgi_header(<<ENDFHEADER);
230: Content-type: text/html
231:
232: ENDFHEADER
233: $r->print(<<ENDFAILED);
234: <html>
235: <head>
1.4 www 236: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
1.1 albertel 237: </head>
238: <html>
239: <body bgcolor="#FFFFFF">
240: <h1>Sorry ...</h1>
1.4 www 241: <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>
1.1 albertel 242: </body>
243: </html>
244: ENDFAILED
245: }
246:
247: # ---------------------------------------------------------------- Main handler
248:
249: sub handler {
250: my $r = shift;
251:
252: my $buffer;
253: $r->read($buffer,$r->header_in('Content-length'));
254: my @pairs=split(/&/,$buffer);
255: my $pair; my $name; my $value; my %FORM;
256: foreach $pair (@pairs) {
257: ($name,$value) = split(/=/,$pair);
1.7 www 258: $value =~ tr/+/ /;
259: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.1 albertel 260: $FORM{$name}=$value;
261: }
262:
263: if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
264: failed($r,'Username, password and domain need to be specified');
265: return OK;
266: }
267: $FORM{'uname'} =~ s/\W//g;
268: $FORM{'udom'} =~ s/\W//g;
269:
270: my $role = $r->dir_config('lonRole');
271: my $domain = $r->dir_config('lonDefDomain');
272: my $prodir = $r->dir_config('lonUsersDir');
273:
1.8 www 274: # ---------------------------------------- Get the information from login token
275:
276: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
277: $FORM{'serverid'});
278:
279: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
280: failed($r,'Login token missing, inaccessible or expired');
281: return OK;
282: }
283:
1.9 www 284: my ($key,$firsturl)=split(/&/,$tmpinfo);
1.8 www 285:
286: my $keybin=pack("H16",$key);
287:
1.26 harris41 288: my $cipher;
289: if ($Crypt::DES::VERSION>=2.03) {
290: $cipher=new Crypt::DES $keybin;
291: }
292: else {
293: $cipher=new DES $keybin;
294: }
1.8 www 295:
296: my $upass=$cipher->decrypt(
297: unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
298:
299: $upass.=$cipher->decrypt(
300: unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
301:
302: $upass=substr($upass,1,ord(substr($upass,0,1)));
303:
1.1 albertel 304: # ---------------------------------------------------------------- Authenticate
305: my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
1.8 www 306: $upass,
1.1 albertel 307: $FORM{'udom'});
308:
309: # --------------------------------------------------------------------- Failed?
310:
311: if ($authhost eq 'no_host') {
312: failed($r,'Username and/or password could not be authenticated');
313: return OK;
314: }
315:
1.13 www 316: if (($firsturl eq '') || ($firsturl eq '/adm/logout')) {
1.24 www 317: $firsturl='/adm/roles';
1.7 www 318: }
1.1 albertel 319:
1.8 www 320: success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
1.1 albertel 321: return OK;
322: }
323:
324: 1;
325: __END__
1.7 www 326:
327:
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