Annotation of loncom/auth/lonauth.pm, revision 1.9

1.1       albertel    1: # The LearningOnline Network
                      2: # User Authentication Module
1.2       www         3: # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
1.4       www         4: # 16/11,12/16,
1.9     ! www         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
1.1       albertel    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();
1.8       www        14: use Crypt::DES;
1.1       albertel   15: use Apache::lonnet();
                     16: 
                     17: # ------------------------------------------------------------ Successful login
                     18: 
                     19: sub success {
1.6       www        20:     my ($r, $username, $domain, $authhost,$lowerurl) = @_;
1.1       albertel   21:     my $lonids=$r->dir_config('lonIDsDir');
1.4       www        22: 
                     23: # See if old ID present, if so, remove
1.1       albertel   24:     my $cookie;
1.4       www        25:     while ($cookie=<$lonids/$username\_*\_$domain\_$authhost.id>) {
                     26: 	unlink($cookie);
                     27:     }
                     28: 
                     29: # Give them a new cookie
                     30: 
1.5       www        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: 
1.7       www        38: # ------------------------------------ Check browser type and MathML capability
1.6       www        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: 
1.7       www        68: # --------------------------------------------------------- Write first profile
1.5       www        69: 
                     70:        {
1.1       albertel   71: 	    my $idf=Apache::File->new(">$lonids/$cookie.id");
1.4       www        72:             print $idf "user.name=$username\n";
                     73:             print $idf "user.domain=$domain\n";
                     74:             print $idf "user.home=$authhost\n";
1.6       www        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";
1.4       www        79:             if ($userroles ne '') { print $idf "$userroles" };
1.1       albertel   80:         }
1.7       www        81: # -------------------------------------------------------------------- Log this
                     82: 
                     83:     &Apache::lonnet::log($domain,$username,$authhost,
                     84:                          "Login $ENV{'REMOTE_ADDR'}");
1.4       www        85: 
1.5       www        86: # ------------------------------------------------------------ Get cookie ready
                     87: 
1.1       albertel   88:     $cookie="lonID=$cookie; path=/";
1.5       www        89: 
                     90: # ------------------------------------------------- Output for successful login
                     91: 
1.1       albertel   92:     $r->send_cgi_header(<<ENDHEADER);
                     93: Content-type: text/html
                     94: Set-cookie: $cookie
                     95: 
                     96: ENDHEADER
                     97:     $r->print(<<ENDSUCCESS);
                     98: <html>
                     99: <head>
1.4       www       100: <title>Successful Login to the LearningOnline Network with CAPA</title>
1.6       www       101: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$lowerurl">
1.1       albertel  102: </head>
1.6       www       103: <body bgcolor="#FFFFFF">
1.7       www       104: <script>
                    105: menu=window.open("/res/adm/pages/menu.html","LONCAPAmenu",
                    106:                  "height=350,width=150,scrollbars=no,menubar=no");
                    107: </script>
1.6       www       108: <h1>Welcome!</h1>
                    109: </body>
1.1       albertel  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:     $r->print(<<ENDFAILED);
                    123: <html>
                    124: <head>
1.4       www       125: <title>Unsuccessful Login to the LearningOnline Network with CAPA</title>
1.1       albertel  126: </head>
                    127: <html>
                    128: <body bgcolor="#FFFFFF">
                    129: <h1>Sorry ...</h1>
1.4       www       130: <h2>$message to use the Learning<i>Online</i> Network with CAPA</h2>
1.1       albertel  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);
1.7       www       147:        $value =~ tr/+/ /;
                    148:        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.1       albertel  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: 
1.8       www       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:     
1.9     ! www       173:     my ($key,$firsturl)=split(/&/,$tmpinfo);
1.8       www       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: 
1.1       albertel  187: # ---------------------------------------------------------------- Authenticate
                    188:     my $authhost=Apache::lonnet::authenticate($FORM{'uname'},
1.8       www       189:                                               $upass,
1.1       albertel  190:                                               $FORM{'udom'});
                    191:     
                    192: # --------------------------------------------------------------------- Failed?
                    193: 
                    194:     if ($authhost eq 'no_host') {
                    195: 	failed($r,'Username and/or password could not be authenticated');
                    196:         return OK;
                    197:     }
                    198: 
1.8       www       199:     if ($firsturl eq '') {
                    200: 	$firsturl='/res/adm/pages/index.html';
1.7       www       201:     }
1.1       albertel  202: 
1.8       www       203:     success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl);
1.1       albertel  204:     return OK;
                    205: }
                    206: 
                    207: 1;
                    208: __END__
1.7       www       209: 
                    210: 

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