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Diff for /loncom/auth/lonauth.pm between versions 1.10 and 1.60

version 1.10, 2000/07/14 07:43:15 version 1.60, 2003/11/21 22:10:25
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # User Authentication Module  # User Authentication Module
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
 # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15  # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
 # 16/11,12/16,  # 16/11,12/16,
 # 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29,  # 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29,
 # 7/1,7/10 Gerd Kortemeyer  # 7/1,7/10,10/2,10/5,10/9,10/26,10/30,11/10,
   # 05/28,05/29 Gerd Kortemeyer
   # 07/28,08/03 Gerd Kortemeyer
   # 8/20 Gerd Kortemeyer
   
 package Apache::lonauth;  package Apache::lonauth;
   
   use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use Apache::File;  use Apache::File;
 use CGI qw(:standard);  use CGI qw(:standard);
 use CGI::Cookie();  use CGI::Cookie();
   use DynaLoader; # for Crypt::DES version
 use Crypt::DES;  use Crypt::DES;
   use Apache::loncommon();
 use Apache::lonnet();  use Apache::lonnet();
   use Apache::lonmenu();
   use Fcntl qw(:flock);
   use Apache::lonlocal;
   
   my %FORM;
   
 # ------------------------------------------------------------ Successful login  # ------------------------------------------------------------ Successful login
   
Line 21  sub success { Line 57  sub success {
     my $lonids=$r->dir_config('lonIDsDir');      my $lonids=$r->dir_config('lonIDsDir');
   
 # See if old ID present, if so, remove  # See if old ID present, if so, remove
     my $cookie;  
     while ($cookie=<$lonids/$username\_*\_$domain\_$authhost.id>) {      my $filename;
  unlink($cookie);      opendir(DIR,$lonids);
       while ($filename=readdir(DIR)) {
          if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
     unlink($lonids.'/'.$filename);
          }
     }      }
       closedir(DIR);
   
 # Give them a new cookie  # Give them a new cookie
   
       my $cookie;
     my $now=time;      my $now=time;
     $cookie="$username\_$now\_$domain\_$authhost";      $cookie="$username\_$now\_$domain\_$authhost";
   
Line 37  sub success { Line 79  sub success {
   
 # ------------------------------------ Check browser type and MathML capability  # ------------------------------------ Check browser type and MathML capability
   
     my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet"));      my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
     my %mathcap=split(/\&/,$r->dir_config("lonMathML"));          $clientunicode,$clientos) = &Apache::loncommon::decode_user_agent($r);
     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};  
     my $i;  # -------------------------------------- Any accessibility options to remember?
     my $clientbrowser='unknown';      if (($FORM{'interface'}) && ($FORM{'remember'} eq 'true')) {
     my $clientversion='0';   foreach ('imagesuppress','appletsuppress',
     my $clientmathml='';   'embedsuppress','fontenhance','blackwhite') {
     for ($i=0;$i<=$#browsertype;$i++) {      if ($FORM{$_} eq 'true') {
         my ($bname,$match,$notmatch,$vreg,$minv)=split(/\:/,$browsertype[$i]);   &Apache::lonnet::put('environment',{$_ => 'on'},
  if (($httpbrowser=~/$match/i)  && ($httpbrowser!~/$notmatch/i)) {       $domain,$username);
     $clientbrowser=$bname;      } else {
             $httpbrowser=~/$vreg/i;   &Apache::lonnet::del('environment',[$_],$domain,$username);
     $clientversion=$1;      }
             $clientmathml=($clientversion>=$minv);   }
         }  
     }      }
     my $clientos='unknown';  # ------------------------------------------------------------- Get environment
     if (($httpbrowser=~/linux/i) ||  
         ($httpbrowser=~/unix/i) ||  
         ($httpbrowser=~/ux/i) ||  
         ($httpbrowser=~/solaris/i)) { $clientos='unix'; }  
     if (($httpbrowser=~/vax/i) ||  
         ($httpbrowser=~/vms/i)) { $clientos='vms'; }  
     if ($httpbrowser=~/next/i) { $clientos='next'; }  
     if (($httpbrowser=~/mac/i) ||  
         ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }  
     if ($httpbrowser=~/win/i) { $clientos='win'; }  
   
       my $userenv;
       my %userenv=Apache::lonnet::dump('environment',$domain,$username);
       my ($tmp) = keys(%userenv);
       if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
    foreach my $key (keys(%userenv)) {
       $userenv.="environment.$key=$userenv{$key}\n";
    }
       }
       if (($userenv{'interface'}) && (!$FORM{'interface'})) {
    $FORM{'interface'}=$userenv{'interface'};
       }
       $ENV{'environment.remote'}=$userenv{'remote'};
   # --------------- Do not trust query string to be put directly into environment
       foreach ('imagesuppress','appletsuppress',
        'embedsuppress','fontenhance','blackwhite',
        'interface','localpath','localres') {
    $FORM{$_}=~s/[\n\r\=]//gs;
       }
 # --------------------------------------------------------- Write first profile  # --------------------------------------------------------- Write first profile
   
        {      {
     my $idf=Apache::File->new(">$lonids/$cookie.id");   my $idf=Apache::File->new(">$lonids/$cookie.id");
             print $idf "user.name=$username\n";   unless (flock($idf,LOCK_EX)) {
             print $idf "user.domain=$domain\n";      &Apache::lonnet::logthis("<font color=blue>WARNING: ".
             print $idf "user.home=$authhost\n";     'Could not obtain exclusive lock in lonauth: '.$!);
             print $idf "browser.type=$clientbrowser\n";      $idf->close();
             print $idf "browser.version=$clientversion\n";      return 'error: '.$!;
             print $idf "browser.mathml=$clientmathml\n";   }
             print $idf "browser.os=$clientos\n";   if ($userenv ne '') { print $idf "$userenv\n"; }
             if ($userroles ne '') { print $idf "$userroles" };   print $idf "user.name=$username\n";
    print $idf "user.domain=$domain\n";
    print $idf "user.home=$authhost\n";
    print $idf "browser.type=$clientbrowser\n";
    print $idf "browser.version=$clientversion\n";
    print $idf "browser.mathml=$clientmathml\n";
    print $idf "browser.unicode=$clientunicode\n";
    print $idf "browser.os=$clientos\n";
           if ($FORM{'localpath'}) {
              print $idf "browser.localpath=$FORM{'localpath'}\n";
              print $idf "browser.localres=$FORM{'localres'}\n";
         }          }
    print $idf "request.course.fn=\n";
    print $idf "request.course.uri=\n";
    print $idf "request.course.sec=\n";
    print $idf "request.role=cm\n";
           print $idf "request.role.adv=$ENV{'user.adv'}\n";
    print $idf "request.host=$ENV{'REMOTE_ADDR'}\n";
    if ($FORM{'interface'}) {
       $FORM{'interface'}=~s/\W//gs;
       print $idf "browser.interface=$FORM{'interface'}\n";
       $ENV{'browser.interface'}=$FORM{'interface'};
       foreach ('imagesuppress','appletsuppress',
        'embedsuppress','fontenhance','blackwhite') {
    if (($FORM{$_} eq 'true') ||
       ($userenv{$_} eq 'on')) {
       print $idf "browser.$_=on\n";
    }
       }
    }
    if ($userroles ne '') { print $idf "$userroles"; }
    $idf->close();
       }
       $ENV{'request.role'}='cm';
       $ENV{'request.role.adv'}=$ENV{'user.adv'};
       $ENV{'browser.type'}=$clientbrowser;
 # -------------------------------------------------------------------- Log this  # -------------------------------------------------------------------- Log this
   
     &Apache::lonnet::log($domain,$username,$authhost,      &Apache::lonnet::log($domain,$username,$authhost,
                          "Login $ENV{'REMOTE_ADDR'}");                           "Login $ENV{'REMOTE_ADDR'}");
   
   # ------------------------------------------------- Check for critical messages
   
       my @what=&Apache::lonnet::dump('critical',$domain,$username);
       if ($what[0]) {
    if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
       $lowerurl='/adm/email?critical=display';
           }
       }
   
 # ------------------------------------------------------------ Get cookie ready  # ------------------------------------------------------------ Get cookie ready
   
     $cookie="lonID=$cookie; path=/";      $cookie="lonID=$cookie; path=/";
   # -------------------------------------------------------- Menu script and info
       my $windowinfo=&Apache::lonmenu::open($clientos);
       my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
       my $setflags=&Apache::lonmenu::setflags();
       my $maincall=&Apache::lonmenu::maincall();
       my $bodytag=&Apache::loncommon::bodytag('Successful Login');
       my $add=&addcontent();
 # ------------------------------------------------- Output for successful login  # ------------------------------------------------- Output for successful login
   
     $r->send_cgi_header(<<ENDHEADER);      $r->send_cgi_header(<<ENDHEADER);
 Content-type: text/html  Content-type: text/html$add
 Set-cookie: $cookie  Set-cookie: $cookie
   
 ENDHEADER  ENDHEADER
       my %lt=&Apache::lonlocal::texthash(
          'wel' => 'Welcome',
          'mes' => 'Welcome to the Learning<i>Online</i> Network with CAPA. Please wait while your session is being set up',
          'pro' => 'Problems',
          'log' => 'loginproblems.html',
          );
     $r->print(<<ENDSUCCESS);      $r->print(<<ENDSUCCESS);
 <html>  <html>
 <head>  <head>
 <title>Successful Login to the LearningOnline Network with CAPA</title>  <title>Successful Login to the LearningOnline Network with CAPA</title>
 <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$lowerurl">  $startupremote
 </head>  </head>
 <body bgcolor="#FFFFFF">  $bodytag
 <script>  $setflags
 menu=window.open("/res/adm/pages/menu.html","LONCAPAmenu",  $windowinfo
                  "height=350,width=150,scrollbars=no,menubar=no");  <h1>$lt{'wel'}</h1>
 </script>  $lt{'mes'}.<p>
 <h1>Welcome!</h1>  <a href="/adm/$lt{'log'}">$lt{'pro'}?</a></p>
   $maincall
 </body>  </body>
 </html>  </html>
 ENDSUCCESS  ENDSUCCESS
Line 115  ENDSUCCESS Line 220  ENDSUCCESS
   
 sub failed {  sub failed {
     my ($r,$message) = @_;      my ($r,$message) = @_;
       my $bodytag=&Apache::loncommon::bodytag('Unsuccessful Login');
       my $add=&addcontent();
     $r->send_cgi_header(<<ENDFHEADER);      $r->send_cgi_header(<<ENDFHEADER);
 Content-type: text/html  Content-type: text/html$add
   
 ENDFHEADER  ENDFHEADER
     $r->print(<<ENDFAILED);      $r->print(<<ENDFAILED);
Line 125  ENDFHEADER Line 232  ENDFHEADER
 <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>  <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
 </head>  </head>
 <html>  <html>
 <body bgcolor="#FFFFFF">  $bodytag
 <h1>Sorry ...</h1>  <h1>Sorry ...</h1>
 <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>  <p><b>$message</b></p>
   <p>Please <a href="/adm/login?username=$FORM{'uname'}&domain=$FORM{'udom'}">log in again</a>.</p>
   <p>
   <a href="/adm/loginproblems.html">Problems?</a></p>
 </body>  </body>
 </html>  </html>
 ENDFAILED  ENDFAILED
 }  }
   
   # --------------------------------------------------------------------- Charset
   
   sub addcontent {
       my $encoding=&Apache::lonlocal::current_encoding;
       if ($encoding) {
    return '; charset='.$encoding;
       } else {
    return '';
       }
   }
   
   # ------------------------------------------------------------------ Rerouting!
   
   sub reroute {
       my $r=shift;
       my $bodytag=&Apache::loncommon::bodytag('Rerouting');
       $r->send_cgi_header(<<ENDRFHEADER);
   Content-type: text/html
   
   ENDRFHEADER
       $r->print(<<ENDRFAILED);
   <html>
   <head>
   <title>Rerouting Login to the LearningOnline Network with CAPA</title>
   </head>
   <html>
   $bodytag
   <h1>Sorry ...</h1>
   Please <a href="/">log in again</a>.
   </body>
   </html>
   ENDRFAILED
   }
   
 # ---------------------------------------------------------------- Main handler  # ---------------------------------------------------------------- Main handler
   
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
   
   # Are we re-routing?
       if (-e '/home/httpd/html/lon-status/reroute.txt') {
    &reroute($r);
    return OK;
       }
   
       &Apache::lonlocal::get_language_handle($r);
   
   # -------------------------------- Prevent users from attempting to login twice
       my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
       my $lonid=$cookies{'lonID'};
       my $cookie;
       if ($lonid) {
    my $handle=$lonid->value;
           $handle=~s/\W//g;
           my $lonidsdir=$r->dir_config('lonIDsDir');
           if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
   # Indeed, a valid token is found
       $r->send_cgi_header(<<ENDFHEADER);
   Content-type: text/html
   
   ENDFHEADER
       my $bodytag=&Apache::loncommon::bodytag('Already logged in');
       $r->print(<<ENDFAILED);
   <html>
   <head>
   <title>Already logged in</title>
   </head>
   <html>
   $bodytag
   <h1>You are already logged in</h1>
   <p>Please either <a href="/adm/roles">continue the current session</a> or
   <a href="/adm/logout">logout</a>.</p>
   <p>
   <a href="/adm/loginproblems.html">Problems?</a></p>
   </body>
   </html>
   ENDFAILED
              return OK;
    }
       }
   
   # ---------------------------------------------------- No valid token, continue
   
   
     my $buffer;      my $buffer;
     $r->read($buffer,$r->header_in('Content-length'));      $r->read($buffer,$r->header_in('Content-length'),0);
     my @pairs=split(/&/,$buffer);      my @pairs=split(/&/,$buffer);
     my $pair; my $name; my $value; my %FORM;      my $pair; my $name; my $value;
       undef %FORM;
       %FORM=();
     foreach $pair (@pairs) {      foreach $pair (@pairs) {
        ($name,$value) = split(/=/,$pair);         ($name,$value) = split(/=/,$pair);
        $value =~ tr/+/ /;         $value =~ tr/+/ /;
Line 150  sub handler { Line 341  sub handler {
     }       } 
   
     if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {      if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
  failed($r,'Username, password and domain need to be specified');   failed($r,'Username, password and domain need to be specified.');
         return OK;          return OK;
     }      }
     $FORM{'uname'} =~ s/\W//g;      $FORM{'uname'} =~ s/\W//g;
Line 166  sub handler { Line 357  sub handler {
                                       $FORM{'serverid'});                                        $FORM{'serverid'});
   
     if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {      if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
  failed($r,'Login token missing, inaccessible or expired');   failed($r,'Information needed to verify your login information is missing, inaccessible or expired.');
         return OK;          return OK;
       } else {
           unless (&Apache::lonnet::reply('tmpdel:'.$FORM{'logtoken'},
                                            $FORM{'serverid'}) eq 'ok') {
               &failed($r,'Session could not be opened.');
    }
     }      }
       
     my ($key,$firsturl)=split(/&/,$tmpinfo);      my ($key,$firsturl)=split(/&/,$tmpinfo);
   
     my $keybin=pack("H16",$key);      my $keybin=pack("H16",$key);
   
     my $cipher=new DES $keybin;      my $cipher;
       if ($Crypt::DES::VERSION>=2.03) {
    $cipher=new Crypt::DES $keybin;
       }
       else {
    $cipher=new DES $keybin;
       }
   
     my $upass=$cipher->decrypt(      my $upass=$cipher->decrypt(
        unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));         unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
Line 192  sub handler { Line 393  sub handler {
 # --------------------------------------------------------------------- Failed?  # --------------------------------------------------------------------- Failed?
   
     if ($authhost eq 'no_host') {      if ($authhost eq 'no_host') {
  failed($r,'Username and/or password could not be authenticated');   failed($r,'Username and/or password could not be authenticated.');
         return OK;          return OK;
     }      }
   
     if ($firsturl eq '') {      if (($firsturl eq '') || 
  $firsturl='/res/adm/pages/index.html';   ($firsturl=~/^\/adm\/(logout|remote)/)) {
    $firsturl='/adm/roles';
     }      }
   
     success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);      success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
Removed from v.1.10  
changed lines
  Added in v.1.60

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