--- loncom/interface/lonpreferences.pm	2013/06/10 20:28:12	1.196.4.11
+++ loncom/interface/lonpreferences.pm	2014/06/09 22:39:01	1.196.4.15
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Preferences
 #
-# $Id: lonpreferences.pm,v 1.196.4.11 2013/06/10 20:28:12 raeburn Exp $
+# $Id: lonpreferences.pm,v 1.196.4.15 2014/06/09 22:39:01 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,8 +36,6 @@ use strict;
 use LONCAPA;
 use Apache::Constants qw(:common);
 use Apache::File;
-use Crypt::DES;
-use DynaLoader; # for Crypt::DES version
 use Apache::loncommon();
 use Apache::lonhtmlcommon();
 use Apache::lonlocal;
@@ -45,50 +43,6 @@ use Apache::lonnet;
 use LONCAPA::lonauthcgi();
 use LONCAPA();
 
-#
-# Write lonnet::passwd to do the call below.
-# Use:
-#   my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
-#
-##################################################
-#          password associated functions         #
-##################################################
-sub des_keys {
-    # Make a new key for DES encryption.
-    # Each key has two parts which are returned separately.
-    # Please note:  Each key must be passed through the &hex function
-    # before it is output to the web browser.  The hex versions cannot
-    # be used to decrypt.
-    my @hexstr=('0','1','2','3','4','5','6','7',
-                '8','9','a','b','c','d','e','f');
-    my $lkey='';
-    for (0..7) {
-        $lkey.=$hexstr[rand(15)];
-    }
-    my $ukey='';
-    for (0..7) {
-        $ukey.=$hexstr[rand(15)];
-    }
-    return ($lkey,$ukey);
-}
-
-sub des_decrypt {
-    my ($key,$cyphertext) = @_;
-    my $keybin=pack("H16",$key);
-    my $cypher;
-    if ($Crypt::DES::VERSION>=2.03) {
-        $cypher=new Crypt::DES $keybin;
-    } else {
-        $cypher=new DES $keybin;
-    }
-    my $plaintext=
-	$cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,0,16))));
-    $plaintext.=
-	$cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,16,16))));
-    $plaintext=substr($plaintext,1,ord(substr($plaintext,0,1)) );
-    return $plaintext;
-}
-
 ################################################################
 #                       Handler subroutines                    #
 ################################################################
@@ -229,6 +183,7 @@ sub texenginechanger {
       'change'   => 'Save',
       'exmpl'    => 'Examples',
       'mathjax'  => 'MathJax:',
+      'mathjaxinfo' =>  'MathJax provides rendered equations whose source code can be extracted in TeX and MathML formats by right clicking the equation.',
       'jsmath'   => 'jsMath:',
       'tth'      => 'tth (TeX to HTML):',
       'mimetex'  => 'mimetex (Convert to Images):',
@@ -265,10 +220,10 @@ $lt{'exmpl'}
 
 <h3>$lt{'mathjax'}</h3>
 </script>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=MathJax" width="400" height="120"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=MathJax" width="400" height="150"></iframe>
 </p>
 <p>
-MathJax provides rendered equations whose source code can be extracted in TeX and MathML formats by right clicking the equation.
+$lt{'mathjaxinfo'}
 </p>
 
 <h3>$lt{'jsmath'}</h3> 
@@ -280,17 +235,17 @@ if (jsMath.nofonts == 1) {
 }
 
 </script>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" height="120"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" height="150"></iframe>
 </p>
 
 <h3>$lt{'mimetex'}</h3>
 <p>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" height="100"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" height="150"></iframe>
 </p>
 
 <h3>$lt{'tth'}</h3>
 <p>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" height="220"></iframe>
+<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" height="150"></iframe>
 </p>
 ENDLSCREEN
     if ($env{'environment.texengine'} ne 'jsMath') {
@@ -447,7 +402,7 @@ $options.'
 </div>');
      } else {
          $r->print('<br clear="all" />'.
-                   &mt('Once the Hotlist contains recently visited '.$lc_role.'s, you can return to this page to also set frozen roles.'));
+                   &mt('Once the Hotlist contains recently visited '.$lc_role.'s you can return to this page to also set frozen roles.'));
      }
      $r->print('
 <br clear="all" />
@@ -876,15 +831,15 @@ sub msgforwardchanger {
                                           foad  => 'Forward to account(s)',
                                           fwdm  => 'Forward messages to other account(s) in LON-CAPA',
                                           noti  => 'E-mail notification of LON-CAPA messages',
-                                          foad_exmpl => 'e.g. <tt>userA:domain1,userB:domain2,...</tt>',
                                           mnot  => 'E-mail address(es) which should be notified about new LON-CAPA messages',
-                                          mnot_exmpl => 'e.g. <tt>joe@doe.com</tt>',
                                           chg   => 'Save',
                                           email => 'The e-mail address entered in row ',
                                           notv => 'is not a valid e-mail address',
                                           toen => "To enter multiple addresses, enter one address at a time, click 'Change' and then add the next one", 
                                           prme => 'Back',
                                         );
+    $lt{'foad_exmpl'} = &mt('e.g. [_1]userA:domain1,userB:domain2,...[_2]','<tt>','</tt>');
+    $lt{'mnot_exmpl'} = &mt('e.g. [_1]joe@doe.com[_2]','<tt>','</tt>');
     Apache::lonhtmlcommon::add_breadcrumb(
 	    {	href => '/adm/preferences?action=changemsgforward',
 		text => 'Messages & Notifications'});
@@ -988,7 +943,7 @@ ENDMSG
                    '" onclick="javscript:delete_address('."'$num'".')" />'.
                    &mt('Delete').'</label></span></td>'.
                    '<td><input type="text" value="'.$item.'" name="address_'.
-                   $num.'" onFocus="javascript:address_changes('."'$num'".
+                   $num.'" onfocus="javascript:address_changes('."'$num'".
                    ')" /></td><td>';
         my %chk;
         if (defined($allnot{$item}{'crit'})) {
@@ -1037,7 +992,7 @@ ENDMSG
                '<input type="checkbox" name="add_notify_'.$num.
                '" value="1" />'.&mt('Add new address').'</label></span></td>'.
                '<td><input type="text" value="" name="address_'.$num.
-               '" onFocus="javascript:new_address('."'$num'".')" /></td><td>';
+               '" onfocus="javascript:new_address('."'$num'".')" /></td><td>';
     foreach my $type ('all','crit','reg') {
         $output .= '<span class="LC_nobreak"><label>'.
                    '<input type="radio" name="notify_type_'.$num.
@@ -1229,7 +1184,7 @@ sub colorschanger {
 
     $r->print(<<ENDCOL);
 
-<form name="parmform">
+<form name="parmform" action="">
 <input type="hidden" name="pres_marker" />
 <input type="hidden" name="pres_type" />
 <input type="hidden" name="pres_value" />
@@ -1364,9 +1319,9 @@ sub passwordchanger {
     return if ($currentauth !~ /^(unix|internal):/);
     #
     # Generate keys
-    my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
-    my ($lkey_npass1,$ukey_npass1) = &des_keys();
-    my ($lkey_npass2,$ukey_npass2) = &des_keys();
+    my ($lkey_cpass ,$ukey_cpass ) = &Apache::loncommon::des_keys();
+    my ($lkey_npass1,$ukey_npass1) = &Apache::loncommon::des_keys();
+    my ($lkey_npass2,$ukey_npass2) = &Apache::loncommon::des_keys();
     # Store the keys in the log files
     my $lonhost = $r->dir_config('lonHostID');
     my $logtoken=Apache::lonnet::reply('tmpput:'
@@ -1459,7 +1414,7 @@ sub client_form {
                 'changepass' => 'Save',
     );
 
-    my $output = '<form name="client">'
+    my $output = '<form name="client" action="">'
                 .&Apache::lonhtmlcommon::start_pick_box();
     if ($caller eq 'reset_by_email') {
         $output .= &Apache::lonhtmlcommon::row_title(
@@ -1490,7 +1445,7 @@ sub client_form {
               .'<input type="password" name="newpass_2" size="10" />'
               .&Apache::lonhtmlcommon::row_closure(1)
               .&Apache::lonhtmlcommon::end_pick_box();
-    $output .= '<p><input type="button" value="'.$lt{'changepass'}.'" onClick="send();" /></p>'
+    $output .= '<p><input type="button" value="'.$lt{'changepass'}.'" onclick="send();" /></p>'
               .qq|
 <input type="hidden" name="ukey_cpass"  value="$hexkey->{'ukey_cpass'}" />
 <input type="hidden" name="lkey_cpass"  value="$hexkey->{'lkey_cpass'}" />
@@ -1605,9 +1560,9 @@ ENDERROR
     }
     my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
     # 
-    $currentpass = &des_decrypt($ckey ,$currentpass);
-    $newpass1    = &des_decrypt($n1key,$newpass1);
-    $newpass2    = &des_decrypt($n2key,$newpass2);
+    $currentpass = &Apache::loncommon::des_decrypt($ckey ,$currentpass);
+    $newpass1    = &Apache::loncommon::des_decrypt($n1key,$newpass1);
+    $newpass2    = &Apache::loncommon::des_decrypt($n2key,$newpass2);
     #
     if ($caller eq 'reset_by_email') {
         my %data = &Apache::lonnet::tmpget($mailtoken);
@@ -1820,7 +1775,7 @@ sub verify_and_change_discussion {
     if (defined($env{'form.discmark'}) ) {
         my $newmark = $env{'form.newmark'};
         if ($newmark eq 'ondisp') {
-            $message.=&Apache::lonhtmlcommon::confirm_success(&mt('In discussions: new posts will be cease to be identified as "NEW" after display.')).'<br />';
+            $message.=&Apache::lonhtmlcommon::confirm_success(&mt('In discussions: new posts will cease to be identified as "NEW" after display.')).'<br />';
             &Apache::lonnet::put('environment',{'discmarkread' => $newmark});
             &Apache::lonnet::appenv({'environment.discmarkread' => $newmark});
         } else {