--- loncom/interface/lonpreferences.pm 2001/01/03 16:20:59 1.1
+++ loncom/interface/lonpreferences.pm 2004/03/26 20:26:30 1.40
@@ -1,41 +1,834 @@
# The LearningOnline Network
# Preferences
#
-# (Internal Server Error Handler
+# $Id: lonpreferences.pm,v 1.40 2004/03/26 20:26:30 www Exp $
#
-# (Login Screen
-# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
-# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
+# Copyright Michigan State University Board of Trustees
#
-# 3/1/1 Gerd Kortemeyer)
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
-# 3/1 Gerd Kortemeyer
+# 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/
+#
+# 2/13/02 2/14 2/15 Matthew Hall
+#
+# This package uses the "londes.js" javascript code.
+#
+# TODOs that have to be completed:
+# interface with lonnet to change the password
+
package Apache::lonpreferences;
use strict;
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;
+
+#
+# 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 #
+################################################################
+
+################################################################
+# Language Change Subroutines #
+################################################################
+sub languagechanger {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my %userenv = &Apache::lonnet::get
+ ('environment',['languages']);
+ my $language=$userenv{'languages'};
+
+ my $pref=&mt('Preferred language');
+ my %langchoices=('' => 'No language preference');
+ foreach (&Apache::loncommon::languageids()) {
+ if (&Apache::loncommon::supportedlanguagecode($_)) {
+ $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
+ = &Apache::loncommon::plainlanguagedescription($_);
+ }
+ }
+ my $selectionbox=&Apache::loncommon::select_form($language,'language',
+ %langchoices);
+ $r->print(<<ENDLSCREEN);
+<form name="server" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_languages" />
+<br />$pref: $selectionbox
+ENDLSCREEN
+ $r->print('<br /><input type="submit" value="'.&mt('Change').'" />');
+}
+
+
+sub verify_and_change_languages {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+# Screenname
+ my $newlanguage = $ENV{'form.language'};
+ $newlanguage=~s/[^\-\w]//g;
+ my $message='';
+ if ($newlanguage) {
+ &Apache::lonnet::put('environment',{'languages' => $newlanguage});
+ &Apache::lonnet::appenv('environment.languages' => $newlanguage);
+ $message='Set new preferred languages to '.$newlanguage;
+ } else {
+ &Apache::lonnet::del('environment',['languages']);
+ &Apache::lonnet::delenv('environment\.languages');
+ $message='Reset preferred language';
+ }
+ $r->print(<<ENDVCSCREEN);
+</p>
+$message
+ENDVCSCREEN
+}
+
+
+################################################################
+# Anonymous Discussion Name Change Subroutines #
+################################################################
+sub screennamechanger {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my %userenv = &Apache::lonnet::get
+ ('environment',['screenname','nickname']);
+ my $screenname=$userenv{'screenname'};
+ my $nickname=$userenv{'nickname'};
+ $r->print(<<ENDSCREEN);
+<form name="server" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_screenname" />
+<br />New screenname (shown if you post anonymously):
+<input type="text" size="20" value="$screenname" name="screenname" />
+<br />New nickname (shown if you post non-anonymously):
+<input type="text" size="20" value="$nickname" name="nickname" />
+<input type="submit" value="Change" />
+</form>
+ENDSCREEN
+}
+
+sub verify_and_change_screenname {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+# Screenname
+ my $newscreen = $ENV{'form.screenname'};
+ $newscreen=~s/[^ \w]//g;
+ my $message='';
+ if ($newscreen) {
+ &Apache::lonnet::put('environment',{'screenname' => $newscreen});
+ &Apache::lonnet::appenv('environment.screenname' => $newscreen);
+ $message='Set new screenname to '.$newscreen;
+ } else {
+ &Apache::lonnet::del('environment',['screenname']);
+ &Apache::lonnet::delenv('environment\.screenname');
+ $message='Reset screenname';
+ }
+# Nickname
+ $message.='<br />';
+ $newscreen = $ENV{'form.nickname'};
+ $newscreen=~s/[^ \w]//g;
+ if ($newscreen) {
+ &Apache::lonnet::put('environment',{'nickname' => $newscreen});
+ &Apache::lonnet::appenv('environment.nickname' => $newscreen);
+ $message.='Set new nickname to '.$newscreen;
+ } else {
+ &Apache::lonnet::del('environment',['nickname']);
+ &Apache::lonnet::delenv('environment\.nickname');
+ $message.='Reset nickname';
+ }
+
+ $r->print(<<ENDVCSCREEN);
+</p>
+$message
+ENDVCSCREEN
+}
+
+################################################################
+# Message Forward #
+################################################################
+
+sub msgforwardchanger {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my %userenv = &Apache::lonnet::get('environment',['msgforward','notification','critnotification']);
+ my $msgforward=$userenv{'msgforward'};
+ my $notification=$userenv{'notification'};
+ my $critnotification=$userenv{'critnotification'};
+ my $forwardingHelp = Apache::loncommon::help_open_topic("Prefs_Forwarding",
+ "What are forwarding ".
+ "and notification ".
+ "addresses");
+ my $criticalMessageHelp = Apache::loncommon::help_open_topic("Course_Critical_Message",
+ "What are critical messages");
+
+ $r->print(<<ENDMSG);
+$forwardingHelp <br />
+<form name="server" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_msgforward" />
+New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
+<input type="text" size="40" value="$msgforward" name="msgforward" /><hr />
+New Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
+<input type="text" size="40" value="$notification" name="notification" /><hr />
+New Critical Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
+<input type="text" size="40" value="$critnotification" name="critnotification" />$criticalMessageHelp<hr />
+<input type="submit" value="Change" />
+</form>
+ENDMSG
+}
+
+sub verify_and_change_msgforward {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my $newscreen = '';
+ my $message='';
+ foreach (split(/\,/,$ENV{'form.msgforward'})) {
+ my ($msuser,$msdomain)=split(/[\@\:]/,$_);
+ $msuser=~s/\W//g;
+ $msdomain=~s/\W//g;
+ if (($msuser) && ($msdomain)) {
+ if (&Apache::lonnet::homeserver($msuser,$msdomain) ne 'no_host') {
+ $newscreen.=$msuser.':'.$msdomain.',';
+ } else {
+ $message.='No such user: '.$msuser.':'.$msdomain.'<br>';
+ }
+ }
+ }
+ $newscreen=~s/\,$//;
+ if ($newscreen) {
+ &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
+ &Apache::lonnet::appenv('environment.msgforward' => $newscreen);
+ $message.='Set new message forwarding to '.$newscreen.'<br />';
+ } else {
+ &Apache::lonnet::del('environment',['msgforward']);
+ &Apache::lonnet::delenv('environment\.msgforward');
+ $message.='Reset message forwarding<br />';
+ }
+ my $notification=$ENV{'form.notification'};
+ $notification=~s/\s//gs;
+ if ($notification) {
+ &Apache::lonnet::put('environment',{'notification' => $notification});
+ &Apache::lonnet::appenv('environment.notification' => $notification);
+ $message.='Set message notification address to '.$notification.'<br />';
+ } else {
+ &Apache::lonnet::del('environment',['notification']);
+ &Apache::lonnet::delenv('environment\.notification');
+ $message.='Reset message notification<br />';
+ }
+ my $critnotification=$ENV{'form.critnotification'};
+ $critnotification=~s/\s//gs;
+ if ($critnotification) {
+ &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
+ &Apache::lonnet::appenv('environment.critnotification' => $critnotification);
+ $message.='Set critical message notification address to '.$critnotification;
+ } else {
+ &Apache::lonnet::del('environment',['critnotification']);
+ &Apache::lonnet::delenv('environment\.critnotification');
+ $message.='Reset critical message notification<br />';
+ }
+ $r->print(<<ENDVCMSG);
+</p>
+$message
+ENDVCMSG
+}
+
+################################################################
+# Colors #
+################################################################
+sub colorschanger {
+ my $r = shift;
+# figure out colors
+ my $function='student';
+ if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
+ $function='coordinator';
+ }
+ if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
+ $function='admin';
+ }
+ if (($ENV{'request.role'}=~/^(au|ca)/) ||
+ ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
+ $function='author';
+ }
+ my $domain=&Apache::loncommon::determinedomain();
+ my %colortypes=('pgbg' => 'Page Background',
+ 'tabbg' => 'Header Background',
+ 'sidebg'=> 'Header Border',
+ 'font' => 'Font',
+ 'link' => 'Un-Visited Link',
+ 'vlink' => 'Visited Link',
+ 'alink' => 'Active Link');
+ my $chtable='';
+ foreach my $item (sort(keys(%colortypes))) {
+ my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
+ $chtable.='<tr><td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
+ '"> </td><td><input name="'.$item.
+ '" size="10" value="'.$curcol.
+'" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
+"','".$curcol."','"
+ .$item."','parmform.pres','psub'".');">Select</a></td></tr>';
+ }
+ my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
+ $r->print(<<ENDCOL);
+<script>
+
+ function pclose() {
+ parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
+ "height=350,width=350,scrollbars=no,menubar=no");
+ parmwin.close();
+ }
+
+ $pjump_def
+
+ function psub() {
+ pclose();
+ if (document.parmform.pres_marker.value!='') {
+ if (document.parmform.pres_type.value!='') {
+ eval('document.server.'+
+ document.parmform.pres_marker.value+
+ '.value=document.parmform.pres_value.value;');
+ }
+ } else {
+ document.parmform.pres_value.value='';
+ document.parmform.pres_marker.value='';
+ }
+ }
+
+
+</script>
+<form name="parmform">
+<input type="hidden" name="pres_marker" />
+<input type="hidden" name="pres_type" />
+<input type="hidden" name="pres_value" />
+</form>
+<form name="server" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="verify_and_change_colors" />
+<table border="2">
+$chtable
+</table>
+<input type="submit" value="Change Custom Colors" />
+<input type="submit" name="resetall" value="Reset All Colors to Default" />
+</form>
+ENDCOL
+}
+
+sub verify_and_change_colors {
+ my $r = shift;
+# figure out colors
+ my $function='student';
+ if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
+ $function='coordinator';
+ }
+ if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
+ $function='admin';
+ }
+ if (($ENV{'request.role'}=~/^(au|ca)/) ||
+ ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
+ $function='author';
+ }
+ my $domain=&Apache::loncommon::determinedomain();
+ my %colortypes=('pgbg' => 'Page Background',
+ 'tabbg' => 'Header Background',
+ 'sidebg'=> 'Header Border',
+ 'font' => 'Font',
+ 'link' => 'Un-Visited Link',
+ 'vlink' => 'Visited Link',
+ 'alink' => 'Active Link');
+
+ my $message='';
+ foreach my $item (keys %colortypes) {
+ my $color=$ENV{'form.'.$item};
+ my $entry='color.'.$function.'.'.$item;
+ if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$ENV{'form.resetall'})) {
+ &Apache::lonnet::put('environment',{$entry => $color});
+ &Apache::lonnet::appenv('environment.'.$entry => $color);
+ $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
+ } else {
+ &Apache::lonnet::del('environment',[$entry]);
+ &Apache::lonnet::delenv('environment\.'.$entry);
+ $message.='Reset '.$colortypes{$item}.'<br />';
+ }
+ }
+ $r->print(<<ENDVCCOL);
+</p>
+$message
+<form name="client" action="/adm/preferences" method="post">
+<input type="hidden" name="action" value="changecolors" />
+</form>
+ENDVCCOL
+}
+
+######################################################
+# password handler subroutines #
+######################################################
+sub passwordchanger {
+ # This function is a bit of a mess....
+ # Passwords are encrypted using londes.js (DES encryption)
+ my $r = shift;
+ my $errormessage = shift;
+ $errormessage = ($errormessage || '');
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my $homeserver = $ENV{'user.home'};
+ my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
+ # Check for authentication types that allow changing of the password.
+ return if ($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();
+ # Store the keys in the log files
+ my $lonhost = $r->dir_config('lonHostID');
+ my $logtoken=Apache::lonnet::reply('tmpput:'
+ .$ukey_cpass . $lkey_cpass .'&'
+ .$ukey_npass1 . $lkey_npass1.'&'
+ .$ukey_npass2 . $lkey_npass2,
+ $lonhost);
+ # Hexify the keys for output as javascript variables
+ $ukey_cpass = hex($ukey_cpass);
+ $lkey_cpass = hex($lkey_cpass);
+ $ukey_npass1= hex($ukey_npass1);
+ $lkey_npass1= hex($lkey_npass1);
+ $ukey_npass2= hex($ukey_npass2);
+ $lkey_npass2= hex($lkey_npass2);
+ # Output javascript to deal with passwords
+ # Output DES javascript
+ $r->print("<html><head>");
+ {
+ my $include = $r->dir_config('lonIncludes');
+ my $jsh=Apache::File->new($include."/londes.js");
+ $r->print(<$jsh>);
+ }
+ $r->print(<<ENDFORM);
+<script language="JavaScript">
+
+ function send() {
+ uextkey=this.document.client.elements.ukey_cpass.value;
+ lextkey=this.document.client.elements.lkey_cpass.value;
+ initkeys();
+
+ this.document.server.elements.currentpass.value
+ =crypted(this.document.client.elements.currentpass.value);
+
+ uextkey=this.document.client.elements.ukey_npass1.value;
+ lextkey=this.document.client.elements.lkey_npass1.value;
+ initkeys();
+ this.document.server.elements.newpass_1.value
+ =crypted(this.document.client.elements.newpass_1.value);
+
+ uextkey=this.document.client.elements.ukey_npass2.value;
+ lextkey=this.document.client.elements.lkey_npass2.value;
+ initkeys();
+ this.document.server.elements.newpass_2.value
+ =crypted(this.document.client.elements.newpass_2.value);
+
+ this.document.server.submit();
+ }
+
+</script>
+$errormessage
+
+<p>
+<!-- We separate the forms into 'server' and 'client' in order to
+ ensure that unencrypted passwords will not be sent out by a
+ crappy browser -->
+
+<form name="server" action="/adm/preferences" method="post">
+<input type="hidden" name="logtoken" value="$logtoken" />
+<input type="hidden" name="action" value="verify_and_change_pass" />
+<input type="hidden" name="currentpass" value="" />
+<input type="hidden" name="newpass_1" value="" />
+<input type="hidden" name="newpass_2" value="" />
+</form>
+
+<form name="client" >
+<table>
+<tr><td align="right"> Current password: </td>
+ <td><input type="password" name="currentpass" size="10"/> </td></tr>
+<tr><td align="right"> New password: </td>
+ <td><input type="password" name="newpass_1" size="10" /> </td></tr>
+<tr><td align="right"> Confirm password: </td>
+ <td><input type="password" name="newpass_2" size="10" /> </td></tr>
+<tr><td colspan="2" align="center">
+ <input type="button" value="Change Password" onClick="send();">
+</table>
+<input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
+<input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
+<input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
+<input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
+<input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
+<input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
+</form>
+</p>
+ENDFORM
+ #
+ return;
+}
+
+sub verify_and_change_password {
+ my $r = shift;
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ my $homeserver = $ENV{'user.home'};
+ my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
+ # Check for authentication types that allow changing of the password.
+ return if ($currentauth !~ /^(unix|internal):/);
+ #
+ $r->print(<<ENDHEADER);
+<html>
+<head>
+<title>LON-CAPA Preferences: Change password for $user</title>
+</head>
+ENDHEADER
+ #
+ my $currentpass = $ENV{'form.currentpass'};
+ my $newpass1 = $ENV{'form.newpass_1'};
+ my $newpass2 = $ENV{'form.newpass_2'};
+ my $logtoken = $ENV{'form.logtoken'};
+ # Check for empty data
+ unless (defined($currentpass) &&
+ defined($newpass1) &&
+ defined($newpass2) ){
+ &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
+ "Password data was blank.\n</p>");
+ return;
+ }
+ # Get the keys
+ my $lonhost = $r->dir_config('lonHostID');
+ my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
+ if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
+ # I do not a have a better idea about how to handle this
+ $r->print(<<ENDERROR);
+<p>
+<font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
+password decryption. Please log out and try again.
+</p>
+ENDERROR
+ # Probably should log an error here
+ return;
+ }
+ my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
+ #
+ $currentpass = &des_decrypt($ckey ,$currentpass);
+ $newpass1 = &des_decrypt($n1key,$newpass1);
+ $newpass2 = &des_decrypt($n2key,$newpass2);
+ #
+ if ($newpass1 ne $newpass2) {
+ &passwordchanger($r,
+ '<font color="#ff0000">ERROR:</font>'.
+ 'The new passwords you entered do not match. '.
+ 'Please try again.');
+ return;
+ }
+ if (length($newpass1) < 7) {
+ &passwordchanger($r,
+ '<font color="#ff0000">ERROR:</font>'.
+ 'Passwords must be a minimum of 7 characters long. '.
+ 'Please try again.');
+ return;
+ }
+ #
+ # Check for bad characters
+ my $badpassword = 0;
+ foreach (split(//,$newpass1)) {
+ $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
+ }
+ if ($badpassword) {
+ # I can't figure out how to enter bad characters on my browser.
+ &passwordchanger($r,<<ENDERROR);
+<font color="#ff0000">ERROR:</font>
+The password you entered contained illegal characters.<br />
+Valid characters are: space and <br />
+<pre>
+!"\#$%&\'()*+,-./0123456789:;<=>?\@
+ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
+</pre>
+ENDERROR
+ }
+ #
+ # Change the password (finally)
+ my $result = &Apache::lonnet::changepass
+ ($user,$domain,$currentpass,$newpass1,$homeserver);
+ # Inform the user the password has (not?) been changed
+ if ($result =~ /^ok$/) {
+ $r->print(<<"ENDTEXT");
+<h2>The password for $user was successfully changed</h2>
+ENDTEXT
+ } else {
+ # error error: run in circles, scream and shout
+ $r->print(<<ENDERROR);
+<h2><font color="#ff0000">The password for $user was not changed</font></h2>
+Please make sure your old password was entered correctly.
+ENDERROR
+ }
+ return;
+}
+
+######################################################
+# other handler subroutines #
+######################################################
+
+################################################################
+# Main handler #
+################################################################
sub handler {
my $r = shift;
- $r->content_type('text/html');
+ my $user = $ENV{'user.name'};
+ my $domain = $ENV{'user.domain'};
+ &Apache::loncommon::content_type($r,'text/html');
+ # Some pages contain DES keys and should not be cached.
+ &Apache::loncommon::no_cache($r);
$r->send_http_header;
return OK if $r->header_only;
+ #
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['action']);
+ #
+ &Apache::lonhtmlcommon::clear_breadcrumbs();
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href => '/adm/preferences',
+ text => 'Set User Preferences'});
+
+ my @Options;
+ # Determine current authentication method
+ my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
+ if ($currentauth =~ /^(unix|internal):/) {
+ push (@Options,({ action => 'changepass',
+ linktext => 'Change Password',
+ href => '/adm/preferences',
+ help => 'Change_Password',
+ subroutine => \&passwordchanger,
+ breadcrumb =>
+ { href => '/adm/preferences?action=changepass',
+ text => 'Change Password'},
+ },
+ { action => 'verify_and_change_pass',
+ subroutine => \&verify_and_change_password,
+ breadcrumb =>
+ { href =>'/adm/preferences?action=changepass',
+ text => 'Change Password'},
+ printmenu => 'yes',
+ }));
+ }
+ push (@Options,({ action => 'changescreenname',
+ linktext => 'Change Screen Name',
+ href => '/adm/preferences',
+ help => 'Prefs_Screen_Name_Nickname',
+ subroutine => \&screennamechanger,
+ breadcrumb =>
+ { href => '/adm/preferences?action=changescreenname',
+ text => 'Change Screen Name'},
+ },
+ { action => 'verify_and_change_screenname',
+ subroutine => \&verify_and_change_screenname,
+ breadcrumb =>
+ { href => '/adm/preferences?action=changescreenname',
+ text => 'Change Screen Name'},
+ printmenu => 'yes',
+ }));
-# --------------------------------------------------- Print login screen header
- $r->print(<<ENDDOCUMENT);
+ push (@Options,({ action => 'changemsgforward',
+ linktext => 'Change Message Forwarding',
+ text => 'and Notification Addresses',
+ href => '/adm/preferences',
+ help => 'Prefs_Forwarding',
+ breadcrumb =>
+ { href => '/adm/preferences?action=changemsgforward',
+ text => 'Change Message Forwarding'},
+ subroutine => \&msgforwardchanger,
+ },
+ { action => 'verify_and_change_msgforward',
+ breadcrumb =>
+ { href => '/adm/preferences?action=changemsgforward',
+ text => 'Change Message Forwarding'},
+ printmenu => 'yes',
+ subroutine => \&verify_and_change_msgforward }));
+ my $aboutmeaction=
+ '/adm/'.$ENV{'user.domain'}.'/'.$ENV{'user.name'}.'/aboutme';
+ push (@Options,{ action => 'none',
+ linktext =>
+ q{Edit the 'About Me' personal information screen},
+ href => $aboutmeaction});
+ push (@Options,({ action => 'changecolors',
+ linktext => 'Change Color Scheme',
+ href => '/adm/preferences',
+ help => 'Change_Colors',
+ breadcrumb =>
+ { href => '/adm/preferences?action=changecolors',
+ text => 'Change Colors'},
+ subroutine => \&colorschanger,
+ },
+ { action => 'verify_and_change_colors',
+ breadcrumb =>
+ { href => '/adm/preferences?action=changecolors',
+ text => 'Change Colors'},
+ printmenu => 'yes',
+ subroutine => \&verify_and_change_colors,
+ }));
+ push (@Options,({ action => 'changelanguages',
+ linktext => 'Change Language Preferences',
+ href => '/adm/preferences',
+ breadcrumb=>
+ { href => '/adm/preferences?action=changelanguages',
+ text => 'Change Language'},
+ subroutine => \&languagechanger,
+ },
+ { action => 'verify_and_change_languages',
+ breadcrumb=>
+ {href => '/adm/preferences?action=changelanguages',
+ text => 'Change Language'},
+ printmenu => 'yes',
+ subroutine=>\&verify_and_change_languages, }
+ ));
+ if ($ENV{'user.name'} =~ /^(albertel|koretemey|korte|hallmat3|turtle)$/) {
+ push (@Options,({ action => 'debugtoggle',
+ printmenu => 'yes',
+ subroutine => \&toggle_debug,
+ }));
+ }
+ $r->print(<<ENDHEADER);
<html>
<head>
-<title>The LearningOnline Network with CAPA</title>
+<title>LON-CAPA Preferences</title>
</head>
-<body bgcolor="#FFFFFF">
-<h1>Preferences</h1>
-<img src="/adm/lonKaputt/lonconstruct.gif">
+ENDHEADER
+ my $call = undef;
+ my $printmenu = 'yes';
+ foreach my $option (@Options) {
+ if ($option->{'action'} eq $ENV{'form.action'}) {
+ $call = $option->{'subroutine'};
+ $printmenu = $option->{'printmenu'};
+ if (exists($option->{'breadcrumb'})) {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ($option->{'breadcrumb'});
+ }
+ }
+ }
+ $r->print(&Apache::loncommon::bodytag('Change Preferences'));
+ $r->print(&Apache::lonhtmlcommon::breadcrumbs
+ (undef,'Change Preferences'));
+ if (defined($call)) {
+ $call->($r);
+ }
+ if ($printmenu eq 'yes') {
+ my $optionlist = '<table cellpadding="5">';
+ if ($ENV{'user.name'} =~
+ /^(albertel|kortemey|korte|hallmat3|turtle)$/
+ ) {
+ push (@Options,({ action => 'debugtoggle',
+ linktext => 'Toggle Debug Messages',
+ text => 'Current Debug status is -'.
+ $ENV{'user.debug'}.'-.',
+ href => '/adm/preferences',
+ printmenu => 'yes',
+ subroutine => \&toggle_debug,
+ }));
+ }
+ foreach my $option(@Options) {
+ my $optiontext = '';
+ if (exists($option->{'href'})) {
+ $optiontext .=
+ '<a href="'.$option->{'href'}.
+ '?action='.$option->{'action'}.'">'.
+ $option->{'linktext'}.'</a>';
+ }
+ if (exists($option->{'text'})) {
+ $optiontext .= ' '.$option->{'text'};
+ }
+ if ($optiontext ne '') {
+ $optiontext = '<font size="+1">'.$optiontext.'</font>';
+ my $helplink = ' ';
+ if (exists($option->{'help'})) {
+ $helplink = &Apache::loncommon::help_open_topic
+ ($option->{'help'});
+ }
+ $optionlist .= '<tr>'.
+ '<td>'.$helplink.'</td>'.
+ '<td>'.$optiontext.'</td>'.
+ '</tr>';
+ }
+ }
+ $optionlist .= '</table>';
+ $r->print($optionlist);
+ }
+ $r->print(<<ENDFOOTER);
</body>
</html>
-ENDDOCUMENT
+ENDFOOTER
return OK;
-}
+}
+
+sub toggle_debug {
+ if ($ENV{'user.debug'}) {
+ &Apache::lonnet::delenv('user\.debug');
+ } else {
+ &Apache::lonnet::appenv('user.debug' => 1);
+ }
+}
1;
__END__