File:  [LON-CAPA] / loncom / auth / lonauth.pm
Revision 1.9: download - view: text, annotated - select for diffs
Sat Jul 1 14:00:51 2000 UTC (23 years, 10 months ago) by www
Branches: MAIN
CVS tags: HEAD
Fixed firsturl bug with special character &

    1: # The LearningOnline Network
    2: # User Authentication Module
    3: # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
    4: # 16/11,12/16,
    5: # 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29,
    6: # 7/1 Gerd Kortemeyer
    7: 
    8: package Apache::lonauth;
    9: 
   10: use Apache::Constants qw(:common);
   11: use Apache::File;
   12: use CGI qw(:standard);
   13: use CGI::Cookie();
   14: use Crypt::DES;
   15: use Apache::lonnet();
   16: 
   17: # ------------------------------------------------------------ Successful login
   18: 
   19: sub success {
   20:     my ($r, $username, $domain, $authhost,$lowerurl) = @_;
   21:     my $lonids=$r->dir_config('lonIDsDir');
   22: 
   23: # See if old ID present, if so, remove
   24:     my $cookie;
   25:     while ($cookie=<$lonids/$username\_*\_$domain\_$authhost.id>) {
   26: 	unlink($cookie);
   27:     }
   28: 
   29: # Give them a new cookie
   30: 
   31:     my $now=time;
   32:     $cookie="$username\_$now\_$domain\_$authhost";
   33: 
   34: # Initialize roles
   35: 
   36:     my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost);
   37: 
   38: # ------------------------------------ Check browser type and MathML capability
   39: 
   40:     my @browsertype=split(/\&/,$r->dir_config("lonBrowsDet"));
   41:     my %mathcap=split(/\&/,$r->dir_config("lonMathML"));
   42:     my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
   43:     my $i;
   44:     my $clientbrowser='unknown';
   45:     my $clientversion='0';
   46:     my $clientmathml='';
   47:     for ($i=0;$i<=$#browsertype;$i++) {
   48:         my ($bname,$match,$notmatch,$vreg,$minv)=split(/\:/,$browsertype[$i]);
   49: 	if (($httpbrowser=~/$match/i)  && ($httpbrowser!~/$notmatch/i)) {
   50: 	    $clientbrowser=$bname;
   51:             $httpbrowser=~/$vreg/i;
   52: 	    $clientversion=$1;
   53:             $clientmathml=($clientversion>=$minv);
   54:         }
   55:     }
   56:     my $clientos='unknown';
   57:     if (($httpbrowser=~/linux/i) ||
   58:         ($httpbrowser=~/unix/i) ||
   59:         ($httpbrowser=~/ux/i) ||
   60:         ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
   61:     if (($httpbrowser=~/vax/i) ||
   62:         ($httpbrowser=~/vms/i)) { $clientos='vms'; }
   63:     if ($httpbrowser=~/next/i) { $clientos='next'; }
   64:     if (($httpbrowser=~/mac/i) ||
   65:         ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
   66:     if ($httpbrowser=~/win/) { $clientos='win'; }
   67: 
   68: # --------------------------------------------------------- Write first profile
   69: 
   70:        {
   71: 	    my $idf=Apache::File->new(">$lonids/$cookie.id");
   72:             print $idf "user.name=$username\n";
   73:             print $idf "user.domain=$domain\n";
   74:             print $idf "user.home=$authhost\n";
   75:             print $idf "browser.type=$clientbrowser\n";
   76:             print $idf "browser.version=$clientversion\n";
   77:             print $idf "browser.mathml=$clientmathml\n";
   78:             print $idf "browser.os=$clientos\n";
   79:             if ($userroles ne '') { print $idf "$userroles" };
   80:         }
   81: # -------------------------------------------------------------------- Log this
   82: 
   83:     &Apache::lonnet::log($domain,$username,$authhost,
   84:                          "Login $ENV{'REMOTE_ADDR'}");
   85: 
   86: # ------------------------------------------------------------ Get cookie ready
   87: 
   88:     $cookie="lonID=$cookie; path=/";
   89: 
   90: # ------------------------------------------------- Output for successful login
   91: 
   92:     $r->send_cgi_header(<<ENDHEADER);
   93: Content-type: text/html
   94: Set-cookie: $cookie
   95: 
   96: ENDHEADER
   97:     $r->print(<<ENDSUCCESS);
   98: <html>
   99: <head>
  100: <title>Successful Login to the LearningOnline Network with CAPA</title>
  101: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$lowerurl">
  102: </head>
  103: <body bgcolor="#FFFFFF">
  104: <script>
  105: menu=window.open("/res/adm/pages/menu.html","LONCAPAmenu",
  106:                  "height=350,width=150,scrollbars=no,menubar=no");
  107: </script>
  108: <h1>Welcome!</h1>
  109: </body>
  110: </html>
  111: ENDSUCCESS
  112: }
  113: 
  114: # --------------------------------------------------------------- Failed login!
  115: 
  116: sub failed {
  117:     my ($r,$message) = @_;
  118:     $r->send_cgi_header(<<ENDFHEADER);
  119: Content-type: text/html
  120: 
  121: ENDFHEADER
  122:     $r->print(<<ENDFAILED);
  123: <html>
  124: <head>
  125: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
  126: </head>
  127: <html>
  128: <body bgcolor="#FFFFFF">
  129: <h1>Sorry ...</h1>
  130: <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>
  131: </body>
  132: </html>
  133: ENDFAILED
  134: }
  135: 
  136: # ---------------------------------------------------------------- Main handler
  137: 
  138: sub handler {
  139:     my $r = shift;
  140: 
  141:     my $buffer;
  142:     $r->read($buffer,$r->header_in('Content-length'));
  143:     my @pairs=split(/&/,$buffer);
  144:     my $pair; my $name; my $value; my %FORM;
  145:     foreach $pair (@pairs) {
  146:        ($name,$value) = split(/=/,$pair);
  147:        $value =~ tr/+/ /;
  148:        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
  149:        $FORM{$name}=$value;
  150:     } 
  151: 
  152:     if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) {
  153: 	failed($r,'Username, password and domain need to be specified');
  154:         return OK;
  155:     }
  156:     $FORM{'uname'} =~ s/\W//g;
  157:     $FORM{'udom'}  =~ s/\W//g;
  158: 
  159:     my $role   = $r->dir_config('lonRole');
  160:     my $domain = $r->dir_config('lonDefDomain');
  161:     my $prodir = $r->dir_config('lonUsersDir');
  162: 
  163: # ---------------------------------------- Get the information from login token
  164: 
  165:     my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'},
  166:                                       $FORM{'serverid'});
  167: 
  168:     if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
  169: 	failed($r,'Login token missing, inaccessible or expired');
  170:         return OK;
  171:     }
  172:     
  173:     my ($key,$firsturl)=split(/&/,$tmpinfo);
  174: 
  175:     my $keybin=pack("H16",$key);
  176: 
  177:     my $cipher=new DES $keybin;
  178: 
  179:     my $upass=$cipher->decrypt(
  180:        unpack("a8",pack("H16",substr($FORM{'upass'},0,16))));
  181: 
  182:     $upass.=$cipher->decrypt(
  183:        unpack("a8",pack("H16",substr($FORM{'upass'},16,16))));
  184: 
  185:     $upass=substr($upass,1,ord(substr($upass,0,1)));
  186: 
  187: # ---------------------------------------------------------------- Authenticate
  188:     my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
  189:                                               $upass,
  190:                                               $FORM{'udom'});
  191:     
  192: # --------------------------------------------------------------------- Failed?
  193: 
  194:     if ($authhost eq 'no_host') {
  195: 	failed($r,'Username and/or password could not be authenticated');
  196:         return OK;
  197:     }
  198: 
  199:     if ($firsturl eq '') {
  200: 	$firsturl='/res/adm/pages/index.html';
  201:     }
  202: 
  203:     success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
  204:     return OK;
  205: }
  206: 
  207: 1;
  208: __END__
  209: 
  210: 

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