Annotation of loncom/auth/lonauth.pm, revision 1.55
1.1 albertel 1: # The LearningOnline Network
2: # User Authentication Module
1.27 www 3: #
1.55 ! www 4: # $Id: lonauth.pm,v 1.54 2003/07/17 15:24:46 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;
1.45 matthew 45: use Apache::loncommon();
1.1 albertel 46: use Apache::lonnet();
1.12 www 47: use Apache::lonmenu();
1.18 albertel 48: use Fcntl qw(:flock);
1.37 www 49:
50: my %FORM;
51:
1.1 albertel 52: # ------------------------------------------------------------ Successful login
53:
54: sub success {
1.6 www 55: my ($r, $username, $domain, $authhost,$lowerurl) = @_;
1.1 albertel 56: my $lonids=$r->dir_config('lonIDsDir');
1.4 www 57:
58: # See if old ID present, if so, remove
1.17 www 59:
60: my $filename;
61: opendir(DIR,$lonids);
62: while ($filename=readdir(DIR)) {
63: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
64: unlink($lonids.'/'.$filename);
65: }
1.4 www 66: }
1.17 www 67: closedir(DIR);
1.4 www 68:
69: # Give them a new cookie
70:
1.17 www 71: my $cookie;
1.5 www 72: my $now=time;
73: $cookie="$username\_$now\_$domain\_$authhost";
74:
75: # Initialize roles
76:
77: my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
78:
1.7 www 79: # ------------------------------------ Check browser type and MathML capability
1.6 www 80:
1.45 matthew 81: my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
82: $clientunicode,$clientos) = &Apache::loncommon::decode_user_agent($r);
1.6 www 83:
1.40 www 84: # -------------------------------------- Any accessibility options to remember?
85: if (($FORM{'interface'}) && ($FORM{'remember'} eq 'true')) {
1.41 albertel 86: foreach ('imagesuppress','appletsuppress',
87: 'embedsuppress','fontenhance','blackwhite') {
88: if ($FORM{$_} eq 'true') {
89: &Apache::lonnet::put('environment',{$_ => 'on'},
90: $domain,$username);
91: } else {
92: &Apache::lonnet::del('environment',[$_],$domain,$username);
93: }
94: }
95: }
1.11 www 96: # ------------------------------------------------------------- Get environment
97:
1.32 albertel 98: my $userenv;
99: my %userenv=Apache::lonnet::dump('environment',$domain,$username);
100: my ($tmp) = keys(%userenv);
101: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
102: foreach my $key (keys(%userenv)) {
103: $userenv.="environment.$key=$userenv{$key}\n";
104: }
1.11 www 105: }
1.38 www 106: if (($userenv{'interface'}) && (!$FORM{'interface'})) {
107: $FORM{'interface'}=$userenv{'interface'};
108: }
1.47 www 109: $ENV{'environment.remote'}=$userenv{'remote'};
1.54 www 110: # --------------- Do not trust query string to be put directly into environment
111: foreach ('imagesuppress','appletsuppress',
112: 'embedsuppress','fontenhance','blackwhite',
113: 'interface','localpath','localres') {
114: $FORM{$_}=~s/[\n\r\=]//gs;
115: }
1.7 www 116: # --------------------------------------------------------- Write first profile
1.5 www 117:
1.41 albertel 118: {
119: my $idf=Apache::File->new(">$lonids/$cookie.id");
120: unless (flock($idf,LOCK_EX)) {
121: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
122: 'Could not obtain exclusive lock in lonauth: '.$!);
123: $idf->close();
124: return 'error: '.$!;
125: }
126: if ($userenv ne '') { print $idf "$userenv\n"; }
127: print $idf "user.name=$username\n";
128: print $idf "user.domain=$domain\n";
129: print $idf "user.home=$authhost\n";
130: print $idf "browser.type=$clientbrowser\n";
131: print $idf "browser.version=$clientversion\n";
132: print $idf "browser.mathml=$clientmathml\n";
133: print $idf "browser.unicode=$clientunicode\n";
134: print $idf "browser.os=$clientos\n";
1.53 www 135: if ($FORM{'localpath'}) {
136: print $idf "browser.localpath=$FORM{'localpath'}\n";
137: print $idf "browser.localres=$FORM{'localres'}\n";
138: }
1.41 albertel 139: print $idf "request.course.fn=\n";
140: print $idf "request.course.uri=\n";
141: print $idf "request.course.sec=\n";
142: print $idf "request.role=cm\n";
1.48 www 143: print $idf "request.role.adv=$ENV{'user.adv'}\n";
1.42 www 144: print $idf "request.host=$ENV{'REMOTE_ADDR'}\n";
1.41 albertel 145: if ($FORM{'interface'}) {
146: $FORM{'interface'}=~s/\W//gs;
147: print $idf "browser.interface=$FORM{'interface'}\n";
148: $ENV{'browser.interface'}=$FORM{'interface'};
149: foreach ('imagesuppress','appletsuppress',
150: 'embedsuppress','fontenhance','blackwhite') {
151: if (($FORM{$_} eq 'true') ||
152: ($userenv{$_} eq 'on')) {
153: print $idf "browser.$_=on\n";
154: }
1.18 albertel 155: }
1.41 albertel 156: }
157: if ($userroles ne '') { print $idf "$userroles"; }
158: $idf->close();
159: }
160: $ENV{'request.role'}='cm';
1.48 www 161: $ENV{'request.role.adv'}=$ENV{'user.adv'};
1.41 albertel 162: $ENV{'browser.type'}=$clientbrowser;
1.7 www 163: # -------------------------------------------------------------------- Log this
164:
165: &Apache::lonnet::log($domain,$username,$authhost,
166: "Login $ENV{'REMOTE_ADDR'}");
1.4 www 167:
1.14 www 168: # ------------------------------------------------- Check for critical messages
169:
1.21 www 170: my @what=&Apache::lonnet::dump('critical',$domain,$username);
1.14 www 171: if ($what[0]) {
1.22 www 172: if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
1.21 www 173: $lowerurl='/adm/email?critical=display';
1.14 www 174: }
175: }
176:
1.5 www 177: # ------------------------------------------------------------ Get cookie ready
178:
1.1 albertel 179: $cookie="lonID=$cookie; path=/";
1.12 www 180: # -------------------------------------------------------- Menu script and info
1.31 www 181: my $windowinfo=&Apache::lonmenu::open($clientos);
1.35 www 182: my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
183: my $setflags=&Apache::lonmenu::setflags();
184: my $maincall=&Apache::lonmenu::maincall();
1.52 www 185: my $bodytag=&Apache::loncommon::bodytag('Successful Login');
1.5 www 186: # ------------------------------------------------- Output for successful login
187:
1.1 albertel 188: $r->send_cgi_header(<<ENDHEADER);
189: Content-type: text/html
190: Set-cookie: $cookie
191:
192: ENDHEADER
193: $r->print(<<ENDSUCCESS);
194: <html>
195: <head>
1.4 www 196: <title>Successful Login to the LearningOnline Network with CAPA</title>
1.35 www 197: $startupremote
1.1 albertel 198: </head>
1.43 www 199: $bodytag
1.35 www 200: $setflags
1.19 www 201: $windowinfo
1.6 www 202: <h1>Welcome!</h1>
1.34 www 203: Welcome to the Learning<i>Online</i> Network with CAPA.
204: Please wait while your session
205: is being set up.<p>
206: <a href="/adm/loginproblems.html">Problems?</a></p>
1.35 www 207: $maincall
1.6 www 208: </body>
1.1 albertel 209: </html>
210: ENDSUCCESS
211: }
212:
213: # --------------------------------------------------------------- Failed login!
214:
215: sub failed {
216: my ($r,$message) = @_;
1.52 www 217: my $bodytag=&Apache::loncommon::bodytag('Unsuccessful Login');
1.1 albertel 218: $r->send_cgi_header(<<ENDFHEADER);
219: Content-type: text/html
220:
221: ENDFHEADER
222: $r->print(<<ENDFAILED);
223: <html>
224: <head>
1.4 www 225: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
1.1 albertel 226: </head>
227: <html>
1.43 www 228: $bodytag
1.1 albertel 229: <h1>Sorry ...</h1>
1.43 www 230: <p><b>$message</b></p>
1.46 matthew 231: <p>Please <a href="/adm/login?username=$FORM{'uname'}&domain=$FORM{'udom'}">log in again</a>.</p>
1.43 www 232: <p>
233: <a href="/adm/loginproblems.html">Problems?</a></p>
1.1 albertel 234: </body>
235: </html>
236: ENDFAILED
237: }
238:
1.55 ! www 239: # ------------------------------------------------------------------ Rerouting!
! 240:
! 241: sub reroute {
! 242: my $r=shift;
! 243: my $bodytag=&Apache::loncommon::bodytag('Rerouting');
! 244: $r->send_cgi_header(<<ENDRFHEADER);
! 245: Content-type: text/html
! 246:
! 247: ENDRFHEADER
! 248: $r->print(<<ENDRFAILED);
! 249: <html>
! 250: <head>
! 251: <title>Rerouting Login to the LearningOnline Network with CAPA</title>
! 252: </head>
! 253: <html>
! 254: $bodytag
! 255: <h1>Sorry ...</h1>
! 256: Please <a href="/">log in again</a>.
! 257: </body>
! 258: </html>
! 259: ENDRFAILED
! 260: }
! 261:
1.1 albertel 262: # ---------------------------------------------------------------- Main handler
263:
264: sub handler {
265: my $r = shift;
1.55 ! www 266:
! 267: # Are we re-routing?
! 268: if (-e '/home/httpd/html/lon-status/reroute.txt') {
! 269: &reroute($r);
! 270: return OK;
! 271: }
1.1 albertel 272:
273: my $buffer;
1.49 albertel 274: $r->read($buffer,$r->header_in('Content-length'),0);
1.1 albertel 275: my @pairs=split(/&/,$buffer);
1.37 www 276: my $pair; my $name; my $value;
277: undef %FORM;
278: %FORM=();
1.1 albertel 279: foreach $pair (@pairs) {
280: ($name,$value) = split(/=/,$pair);
1.7 www 281: $value =~ tr/+/ /;
282: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.1 albertel 283: $FORM{$name}=$value;
284: }
285:
286: if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
1.43 www 287: failed($r,'Username, password and domain need to be specified.');
1.1 albertel 288: return OK;
289: }
290: $FORM{'uname'} =~ s/\W//g;
291: $FORM{'udom'} =~ s/\W//g;
292:
293: my $role = $r->dir_config('lonRole');
294: my $domain = $r->dir_config('lonDefDomain');
295: my $prodir = $r->dir_config('lonUsersDir');
296:
1.8 www 297: # ---------------------------------------- Get the information from login token
298:
299: my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
300: $FORM{'serverid'});
301:
302: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
1.43 www 303: failed($r,'Information needed to verify your login information is missing, inaccessible or expired.');
1.8 www 304: return OK;
1.44 www 305: } else {
306: unless (&Apache::lonnet::reply('tmpdel:'.$FORM{'logtoken'},
307: $FORM{'serverid'}) eq 'ok') {
308: &failed($r,'Session could not be opened.');
309: }
1.8 www 310: }
1.9 www 311: my ($key,$firsturl)=split(/&/,$tmpinfo);
1.8 www 312:
313: my $keybin=pack("H16",$key);
314:
1.26 harris41 315: my $cipher;
316: if ($Crypt::DES::VERSION>=2.03) {
317: $cipher=new Crypt::DES $keybin;
318: }
319: else {
320: $cipher=new DES $keybin;
321: }
1.8 www 322:
323: my $upass=$cipher->decrypt(
324: unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
325:
326: $upass.=$cipher->decrypt(
327: unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
328:
329: $upass=substr($upass,1,ord(substr($upass,0,1)));
330:
1.1 albertel 331: # ---------------------------------------------------------------- Authenticate
332: my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
1.8 www 333: $upass,
1.1 albertel 334: $FORM{'udom'});
335:
336: # --------------------------------------------------------------------- Failed?
337:
338: if ($authhost eq 'no_host') {
1.43 www 339: failed($r,'Username and/or password could not be authenticated.');
1.1 albertel 340: return OK;
341: }
342:
1.13 www 343: if (($firsturl eq '') || ($firsturl eq '/adm/logout')) {
1.24 www 344: $firsturl='/adm/roles';
1.7 www 345: }
1.1 albertel 346:
1.8 www 347: success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
1.1 albertel 348: return OK;
349: }
350:
351: 1;
352: __END__
1.7 www 353:
354:
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