Annotation of loncom/auth/lonauth.pm, revision 1.43
1.1 albertel 1: # The LearningOnline Network
2: # User Authentication Module
1.27 www 3: #
1.43 ! www 4: # $Id: lonauth.pm,v 1.42 2003/02/26 14:10:38 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
1.22 www 33: # 07/28,08/03 Gerd Kortemeyer
1.24 www 34: # 8/20 Gerd Kortemeyer
1.1 albertel 35:
36: package Apache::lonauth;
37:
1.18 albertel 38: use strict;
1.1 albertel 39: use Apache::Constants qw(:common);
40: use Apache::File;
41: use CGI qw(:standard);
42: use CGI::Cookie();
1.26 harris41 43: use DynaLoader; # for Crypt::DES version
1.8 www 44: use Crypt::DES;
1.1 albertel 45: use Apache::lonnet();
1.12 www 46: use Apache::lonmenu();
1.18 albertel 47: use Fcntl qw(:flock);
1.37 www 48:
49: my %FORM;
50:
1.1 albertel 51: # ------------------------------------------------------------ Successful login
52:
53: sub success {
1.6 www 54: my ($r, $username, $domain, $authhost,$lowerurl) = @_;
1.1 albertel 55: my $lonids=$r->dir_config('lonIDsDir');
1.4 www 56:
57: # See if old ID present, if so, remove
1.17 www 58:
59: my $filename;
60: opendir(DIR,$lonids);
61: while ($filename=readdir(DIR)) {
62: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
63: unlink($lonids.'/'.$filename);
64: }
1.4 www 65: }
1.17 www 66: closedir(DIR);
1.4 www 67:
68: # Give them a new cookie
69:
1.17 www 70: my $cookie;
1.5 www 71: my $now=time;
72: $cookie="$username\_$now\_$domain\_$authhost";
73:
74: # Initialize roles
75:
76: my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
77:
1.7 www 78: # ------------------------------------ Check browser type and MathML capability
1.6 www 79:
80: my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet"));
81: my %mathcap=split(/\&/,$r->dir_config("lonMathML"));
82: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
83: my $i;
84: my $clientbrowser='unknown';
85: my $clientversion='0';
86: my $clientmathml='';
1.33 albertel 87: my $clientunicode='0';
1.6 www 88: for ($i=0;$i<=$#browsertype;$i++) {
1.33 albertel 89: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1.6 www 90: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
91: $clientbrowser=$bname;
92: $httpbrowser=~/$vreg/i;
93: $clientversion=$1;
94: $clientmathml=($clientversion>=$minv);
1.33 albertel 95: $clientunicode=($clientversion>=$univ);
96: }
1.6 www 97: }
98: my $clientos='unknown';
99: if (($httpbrowser=~/linux/i) ||
100: ($httpbrowser=~/unix/i) ||
101: ($httpbrowser=~/ux/i) ||
102: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
103: if (($httpbrowser=~/vax/i) ||
104: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
105: if ($httpbrowser=~/next/i) { $clientos='next'; }
106: if (($httpbrowser=~/mac/i) ||
107: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1.10 www 108: if ($httpbrowser=~/win/i) { $clientos='win'; }
1.31 www 109: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1.6 www 110:
1.40 www 111: # -------------------------------------- Any accessibility options to remember?
112: if (($FORM{'interface'}) && ($FORM{'remember'} eq 'true')) {
1.41 albertel 113: foreach ('imagesuppress','appletsuppress',
114: 'embedsuppress','fontenhance','blackwhite') {
115: if ($FORM{$_} eq 'true') {
116: &Apache::lonnet::put('environment',{$_ => 'on'},
117: $domain,$username);
118: } else {
119: &Apache::lonnet::del('environment',[$_],$domain,$username);
120: }
121: }
122: }
1.11 www 123: # ------------------------------------------------------------- Get environment
124:
1.32 albertel 125: my $userenv;
126: my %userenv=Apache::lonnet::dump('environment',$domain,$username);
127: my ($tmp) = keys(%userenv);
128: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
129: foreach my $key (keys(%userenv)) {
130: $userenv.="environment.$key=$userenv{$key}\n";
131: }
1.11 www 132: }
1.38 www 133: if (($userenv{'interface'}) && (!$FORM{'interface'})) {
134: $FORM{'interface'}=$userenv{'interface'};
135: }
1.7 www 136: # --------------------------------------------------------- Write first profile
1.5 www 137:
1.41 albertel 138: {
139: my $idf=Apache::File->new(">$lonids/$cookie.id");
140: unless (flock($idf,LOCK_EX)) {
141: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
142: 'Could not obtain exclusive lock in lonauth: '.$!);
143: $idf->close();
144: return 'error: '.$!;
145: }
146: if ($userenv ne '') { print $idf "$userenv\n"; }
147: print $idf "user.name=$username\n";
148: print $idf "user.domain=$domain\n";
149: print $idf "user.home=$authhost\n";
150: print $idf "browser.type=$clientbrowser\n";
151: print $idf "browser.version=$clientversion\n";
152: print $idf "browser.mathml=$clientmathml\n";
153: print $idf "browser.unicode=$clientunicode\n";
154: print $idf "browser.os=$clientos\n";
155: print $idf "request.course.fn=\n";
156: print $idf "request.course.uri=\n";
157: print $idf "request.course.sec=\n";
158: print $idf "request.role=cm\n";
1.42 www 159: print $idf "request.host=$ENV{'REMOTE_ADDR'}\n";
1.41 albertel 160: if ($FORM{'interface'}) {
161: $FORM{'interface'}=~s/\W//gs;
162: print $idf "browser.interface=$FORM{'interface'}\n";
163: $ENV{'browser.interface'}=$FORM{'interface'};
164: foreach ('imagesuppress','appletsuppress',
165: 'embedsuppress','fontenhance','blackwhite') {
166: if (($FORM{$_} eq 'true') ||
167: ($userenv{$_} eq 'on')) {
168: print $idf "browser.$_=on\n";
169: }
1.18 albertel 170: }
1.41 albertel 171: }
172: if ($userroles ne '') { print $idf "$userroles"; }
173: $idf->close();
174: }
175: $ENV{'request.role'}='cm';
176: $ENV{'browser.type'}=$clientbrowser;
1.7 www 177: # -------------------------------------------------------------------- Log this
178:
179: &Apache::lonnet::log($domain,$username,$authhost,
180: "Login $ENV{'REMOTE_ADDR'}");
1.4 www 181:
1.14 www 182: # ------------------------------------------------- Check for critical messages
183:
1.21 www 184: my @what=&Apache::lonnet::dump('critical',$domain,$username);
1.14 www 185: if ($what[0]) {
1.22 www 186: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
1.21 www 187: $lowerurl='/adm/email?critical=display';
1.14 www 188: }
189: }
190:
1.5 www 191: # ------------------------------------------------------------ Get cookie ready
192:
1.1 albertel 193: $cookie="lonID=$cookie; path=/";
1.12 www 194: # -------------------------------------------------------- Menu script and info
1.31 www 195: my $windowinfo=&Apache::lonmenu::open($clientos);
1.35 www 196: my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
197: my $setflags=&Apache::lonmenu::setflags();
198: my $maincall=&Apache::lonmenu::maincall();
1.43 ! www 199: my $bodytag=&Apache::loncommon::bodytag('Successful Login');
1.5 www 200: # ------------------------------------------------- Output for successful login
201:
1.1 albertel 202: $r->send_cgi_header(<<ENDHEADER);
203: Content-type: text/html
204: Set-cookie: $cookie
205:
206: ENDHEADER
207: $r->print(<<ENDSUCCESS);
208: <html>
209: <head>
1.4 www 210: <title>Successful Login to the LearningOnline Network with CAPA</title>
1.35 www 211: $startupremote
1.1 albertel 212: </head>
1.43 ! www 213: $bodytag
1.35 www 214: $setflags
1.19 www 215: $windowinfo
1.6 www 216: <h1>Welcome!</h1>
1.34 www 217: Welcome to the Learning<i>Online</i> Network with CAPA.
218: Please wait while your session
219: is being set up.<p>
220: <a href="/adm/loginproblems.html">Problems?</a></p>
1.35 www 221: $maincall
1.6 www 222: </body>
1.1 albertel 223: </html>
224: ENDSUCCESS
225: }
226:
227: # --------------------------------------------------------------- Failed login!
228:
229: sub failed {
230: my ($r,$message) = @_;
1.43 ! www 231: my $bodytag=&Apache::loncommon::bodytag('Unsuccessful Login');
1.1 albertel 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>
1.43 ! www 242: $bodytag
1.1 albertel 243: <h1>Sorry ...</h1>
1.43 ! www 244: <p><b>$message</b></p>
! 245: <p>Please <a href="/adm/login?username=$FORM{'uname'}&domain=$FORM{'udom'}">login</a> again.</p>
! 246: <p>
! 247: <a href="/adm/loginproblems.html">Problems?</a></p>
1.1 albertel 248: </body>
249: </html>
250: ENDFAILED
251: }
252:
253: # ---------------------------------------------------------------- Main handler
254:
255: sub handler {
256: my $r = shift;
257:
258: my $buffer;
259: $r->read($buffer,$r->header_in('Content-length'));
260: my @pairs=split(/&/,$buffer);
1.37 www 261: my $pair; my $name; my $value;
262: undef %FORM;
263: %FORM=();
1.1 albertel 264: foreach $pair (@pairs) {
265: ($name,$value) = split(/=/,$pair);
1.7 www 266: $value =~ tr/+/ /;
267: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.1 albertel 268: $FORM{$name}=$value;
269: }
270:
271: if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
1.43 ! www 272: failed($r,'Username, password and domain need to be specified.');
1.1 albertel 273: return OK;
274: }
275: $FORM{'uname'} =~ s/\W//g;
276: $FORM{'udom'} =~ s/\W//g;
277:
278: my $role = $r->dir_config('lonRole');
279: my $domain = $r->dir_config('lonDefDomain');
280: my $prodir = $r->dir_config('lonUsersDir');
281:
1.8 www 282: # ---------------------------------------- Get the information from login token
283:
284: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
285: $FORM{'serverid'});
286:
287: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
1.43 ! www 288: failed($r,'Information needed to verify your login information is missing, inaccessible or expired.');
1.8 www 289: return OK;
290: }
291:
1.9 www 292: my ($key,$firsturl)=split(/&/,$tmpinfo);
1.8 www 293:
294: my $keybin=pack("H16",$key);
295:
1.26 harris41 296: my $cipher;
297: if ($Crypt::DES::VERSION>=2.03) {
298: $cipher=new Crypt::DES $keybin;
299: }
300: else {
301: $cipher=new DES $keybin;
302: }
1.8 www 303:
304: my $upass=$cipher->decrypt(
305: unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
306:
307: $upass.=$cipher->decrypt(
308: unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
309:
310: $upass=substr($upass,1,ord(substr($upass,0,1)));
311:
1.1 albertel 312: # ---------------------------------------------------------------- Authenticate
313: my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
1.8 www 314: $upass,
1.1 albertel 315: $FORM{'udom'});
316:
317: # --------------------------------------------------------------------- Failed?
318:
319: if ($authhost eq 'no_host') {
1.43 ! www 320: failed($r,'Username and/or password could not be authenticated.');
1.1 albertel 321: return OK;
322: }
323:
1.13 www 324: if (($firsturl eq '') || ($firsturl eq '/adm/logout')) {
1.24 www 325: $firsturl='/adm/roles';
1.7 www 326: }
1.1 albertel 327:
1.8 www 328: success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
1.1 albertel 329: return OK;
330: }
331:
332: 1;
333: __END__
1.7 www 334:
335:
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