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Diff for /loncom/auth/lonauth.pm between versions 1.46 and 1.69

version 1.46, 2003/03/17 13:41:12 version 1.69, 2005/07/07 06:18:37
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # 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  
 # 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,  
 # 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;
   
Line 43  use CGI::Cookie(); Line 36  use CGI::Cookie();
 use DynaLoader; # for Crypt::DES version  use DynaLoader; # for Crypt::DES version
 use Crypt::DES;  use Crypt::DES;
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::lonnet();  use Apache::lonnet;
 use Apache::lonmenu();  use Apache::lonmenu();
 use Fcntl qw(:flock);  use Fcntl qw(:flock);
   use Apache::lonlocal;
   
 my %FORM;  my %FORM;
   
Line 55  sub success { Line 49  sub success {
     my ($r, $username, $domain, $authhost,$lowerurl) = @_;      my ($r, $username, $domain, $authhost,$lowerurl) = @_;
     my $lonids=$r->dir_config('lonIDsDir');      my $lonids=$r->dir_config('lonIDsDir');
   
       my $public=($username eq 'public' && $domain eq 'public');
   
 # See if old ID present, if so, remove  # See if old ID present, if so, remove
   
     my $filename;      my ($filename,$cookie,$userroles);
     opendir(DIR,$lonids);      my $now=time;
     while ($filename=readdir(DIR)) {  
        if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {  
   unlink($lonids.'/'.$filename);  
        }  
     }  
     closedir(DIR);  
   
 # Give them a new cookie      if ($public) {
    my $max_public=100;
    my $oldest;
    my $oldest_time=0;
    for(my $next=1;$next<=$max_public;$next++) {
       if (-e $lonids."/publicuser_$next.id") {
    my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
    if ($mtime<$oldest_time || !$oldest_time) {
       $oldest_time=$mtime;
       $oldest=$next;
    }
       } else {
    $cookie="publicuser_$next";
    last;
       }
    }
    if (!$cookie) { $cookie="publicuser_$oldest"; }
       } else {
    opendir(DIR,$lonids);
    while ($filename=readdir(DIR)) {
       if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
    unlink($lonids.'/'.$filename);
       }
    }
    closedir(DIR);
   
     my $cookie;  # Give them a new cookie
     my $now=time;  
     $cookie="$username\_$now\_$domain\_$authhost";  
   
    $cookie="$username\_$now\_$domain\_$authhost";
       
 # Initialize roles  # Initialize roles
   
     my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);   $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
       }
 # ------------------------------------ Check browser type and MathML capability  # ------------------------------------ Check browser type and MathML capability
   
     my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,      my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
Line 106  sub success { Line 120  sub success {
     if (($userenv{'interface'}) && (!$FORM{'interface'})) {      if (($userenv{'interface'}) && (!$FORM{'interface'})) {
  $FORM{'interface'}=$userenv{'interface'};   $FORM{'interface'}=$userenv{'interface'};
     }      }
       $env{'environment.remote'}=$userenv{'remote'};
       if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
   
   # --------------- 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
   
     {      {
Line 125  sub success { Line 148  sub success {
  print $idf "browser.mathml=$clientmathml\n";   print $idf "browser.mathml=$clientmathml\n";
  print $idf "browser.unicode=$clientunicode\n";   print $idf "browser.unicode=$clientunicode\n";
  print $idf "browser.os=$clientos\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.fn=\n";
  print $idf "request.course.uri=\n";   print $idf "request.course.uri=\n";
  print $idf "request.course.sec=\n";   print $idf "request.course.sec=\n";
  print $idf "request.role=cm\n";   print $idf "request.role=cm\n";
           print $idf "request.role.adv=$env{'user.adv'}\n";
  print $idf "request.host=$ENV{'REMOTE_ADDR'}\n";   print $idf "request.host=$ENV{'REMOTE_ADDR'}\n";
    if ($public) {
       print $idf "environment.remote=off\n";
    }
  if ($FORM{'interface'}) {   if ($FORM{'interface'}) {
     $FORM{'interface'}=~s/\W//gs;      $FORM{'interface'}=~s/\W//gs;
     print $idf "browser.interface=$FORM{'interface'}\n";      print $idf "browser.interface=$FORM{'interface'}\n";
     $ENV{'browser.interface'}=$FORM{'interface'};      $env{'browser.interface'}=$FORM{'interface'};
     foreach ('imagesuppress','appletsuppress',      foreach ('imagesuppress','appletsuppress',
      'embedsuppress','fontenhance','blackwhite') {       'embedsuppress','fontenhance','blackwhite') {
  if (($FORM{$_} eq 'true') ||   if (($FORM{$_} eq 'true') ||
Line 145  sub success { Line 176  sub success {
  if ($userroles ne '') { print $idf "$userroles"; }   if ($userroles ne '') { print $idf "$userroles"; }
  $idf->close();   $idf->close();
     }      }
     $ENV{'request.role'}='cm';      $env{'request.role'}='cm';
     $ENV{'browser.type'}=$clientbrowser;      $env{'request.role.adv'}=$env{'user.adv'};
       $env{'browser.type'}=$clientbrowser;
 # -------------------------------------------------------------------- Log this  # -------------------------------------------------------------------- Log this
   
     &Apache::lonnet::log($domain,$username,$authhost,      &Apache::lonnet::log($domain,$username,$authhost,
Line 163  sub success { Line 195  sub success {
   
 # ------------------------------------------------------------ Get cookie ready  # ------------------------------------------------------------ Get cookie ready
   
       if ($public) { return $cookie; }
     $cookie="lonID=$cookie; path=/";      $cookie="lonID=$cookie; path=/";
 # -------------------------------------------------------- Menu script and info  # -------------------------------------------------------- Menu script and info
     my $windowinfo=&Apache::lonmenu::open($clientos);      my $windowinfo=&Apache::lonmenu::open($clientos);
     my $startupremote=&Apache::lonmenu::startupremote($lowerurl);      my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
       my $remoteinfo=&Apache::lonmenu::load_remote_msg($lowerurl);
     my $setflags=&Apache::lonmenu::setflags();      my $setflags=&Apache::lonmenu::setflags();
     my $maincall=&Apache::lonmenu::maincall();      my $maincall=&Apache::lonmenu::maincall();
     my $bodytag=&Apache::loncommon::bodytag('Successful Login');      my $bodytag=&Apache::loncommon::bodytag('Successful Login');
       my $add=&addcontent();
       my $continuelink;
       if (($env{'browser.interface'} eq 'textual') ||
           ($env{'environment.remote'} eq 'off')) {
    $continuelink="<a href=\"$lowerurl\">".&mt('Continue')."</a>";
       }
 # ------------------------------------------------- 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>
Line 186  $startupremote Line 232  $startupremote
 $bodytag  $bodytag
 $setflags  $setflags
 $windowinfo  $windowinfo
 <h1>Welcome!</h1>  <h1>$lt{'wel'}</h1>
 Welcome to the Learning<i>Online</i> Network with CAPA.  $lt{'mes'}.<p>
 Please wait while your session  <a href="/adm/$lt{'log'}">$lt{'pro'}?</a></p>
 is being set up.<p>  $remoteinfo
 <a href="/adm/loginproblems.html">Problems?</a></p>  
 $maincall  $maincall
   $continuelink
 </body>  </body>
 </html>  </html>
 ENDSUCCESS  ENDSUCCESS
Line 202  ENDSUCCESS Line 248  ENDSUCCESS
 sub failed {  sub failed {
     my ($r,$message) = @_;      my ($r,$message) = @_;
     my $bodytag=&Apache::loncommon::bodytag('Unsuccessful Login');      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 211  ENDFHEADER Line 258  ENDFHEADER
 <head>  <head>
 <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>  <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
 </head>  </head>
 <html>  
 $bodytag  $bodytag
 <h1>Sorry ...</h1>  <h1>Sorry ...</h1>
 <p><b>$message</b></p>  <p><b>$message</b></p>
Line 223  $bodytag Line 269  $bodytag
 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>
   $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>
   $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 $pair; my $name; my $value;
     undef %FORM;      undef %FORM;
Line 241  sub handler { Line 364  sub handler {
        $FORM{$name}=$value;         $FORM{$name}=$value;
     }       } 
   
     if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {      if ((!$FORM{'uname'}) || (!$FORM{'upass0'}) || (!$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;
     }      }
   
   # split user logging in and "su"-user
   
       ($FORM{'uname'},$FORM{'suname'})=split(/\:/,$FORM{'uname'});
     $FORM{'uname'} =~ s/\W//g;      $FORM{'uname'} =~ s/\W//g;
       $FORM{'suname'} =~ s/\W//g;
     $FORM{'udom'}  =~ s/\W//g;      $FORM{'udom'}  =~ s/\W//g;
   
     my $role   = $r->dir_config('lonRole');      my $role   = $r->dir_config('lonRole');
Line 277  sub handler { Line 405  sub handler {
     else {      else {
  $cipher=new DES $keybin;   $cipher=new DES $keybin;
     }      }
       my $upass='';
       for (my $i=0;$i<=2;$i++) {
    my $chunk=
       $cipher->decrypt(unpack("a8",pack("H16",substr($FORM{'upass'.$i},0,16))));
   
     my $upass=$cipher->decrypt(   $chunk.=
        unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));      $cipher->decrypt(unpack("a8",pack("H16",substr($FORM{'upass'.$i},16,16))));
   
     $upass.=$cipher->decrypt(  
        unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));  
   
     $upass=substr($upass,1,ord(substr($upass,0,1)));   $chunk=substr($chunk,1,ord(substr($chunk,0,1)));
    $upass.=$chunk;
       }
   
 # ---------------------------------------------------------------- Authenticate  # ---------------------------------------------------------------- Authenticate
     my $authhost=Apache::lonnet::authenticate($FORM{'uname'},      my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
Line 298  sub handler { Line 429  sub handler {
         return OK;          return OK;
     }      }
   
     if (($firsturl eq '') || ($firsturl eq '/adm/logout')) {      if (($firsturl eq '') || 
    ($firsturl=~/^\/adm\/(logout|remote)/)) {
  $firsturl='/adm/roles';   $firsturl='/adm/roles';
     }      }
   # --------------------------------- Are we attempting to login as somebody else?
     success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);      if ($FORM{'suname'}) {
   # ------------ see if the original user has enough privileges to pull this stunt
    if (&Apache::lonnet::privileged($FORM{'uname'},$FORM{'udom'})) {
   # ---------------------------------------------------- see if the su-user exists
       unless (&Apache::lonnet::homeserver($FORM{'suname'},$FORM{'udom'})
    eq 'no_host') {
    &Apache::lonnet::logthis(&Apache::lonnet::homeserver($FORM{'suname'},$FORM{'udom'}));
   # ------------------------------ see if the su-user is not too highly privileged
    unless (&Apache::lonnet::privileged($FORM{'suname'},$FORM{'udom'})) {
   # -------------------------------------------------------- actually switch users
       &Apache::lonnet::logperm('User '.$FORM{'uname'}.' at '.$FORM{'udom'}.
    ' logging in as '.$FORM{'suname'});
       $FORM{'uname'}=$FORM{'suname'};
    } else {
       &Apache::lonnet::logthis('Attempted switch user to privileged user');
    }
       }
    } else {
       &Apache::lonnet::logthis('Non-privileged user attempting switch user');
    }
       }
       &success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
     return OK;      return OK;
 }  }
   
Removed from v.1.46  
changed lines
  Added in v.1.69

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