# The LearningOnline Network
# Preferences
#
# $Id: lonpreferences.pm,v 1.95 2006/12/06 22:22:37 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# 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/
#
# 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 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;
use Apache::lonnet;
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 #
################################################################
################################################################
# Language Change Subroutines #
################################################################
sub wysiwygchanger {
my $r = shift;
my %userenv = &Apache::lonnet::get
('environment',['wysiwygeditor']);
my $onselect='checked="checked"';
my $offselect='';
if ($userenv{'wysiwygeditor'} eq 'on') {
$onselect='';
$offselect='checked="checked"';
}
my $switchoff=&mt('Disable WYSIWYG editor');
my $switchon=&mt('Enable WYSIWYG editor');
$r->print(<<ENDLSCREEN);
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="set_wysiwyg" />
<br />
<label><input type="radio" name="wysiwyg" value="off" $onselect /> $switchoff</label><br />
<label><input type="radio" name="wysiwyg" value="on" $offselect /> $switchon</label>
ENDLSCREEN
$r->print('<br /><input type="submit" value="'.&mt('Change').'" />');
}
sub verify_and_change_wysiwyg {
my $r = shift;
my $newsetting=$env{'form.wysiwyg'};
&Apache::lonnet::put('environment',{'wysiwygeditor' => $newsetting});
&Apache::lonnet::appenv('environment.wysiwygeditor' => $newsetting);
$r->print('<p>'.&mt('Setting WYSIWYG editor to:').' '.&mt($newsetting).'</p>');
}
################################################################
# 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);
$r->print(<<ENDLSCREEN);
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_languages" />
<br />$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);
$message
ENDVCSCREEN
}
################################################################
# Tex Engine Change Subroutines #
################################################################
sub texenginechanger {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
my %userenv = &Apache::lonnet::get('environment',['texengine']);
my $texengine=$userenv{'texengine'};
my $pref=&mt('Preferred method to display Math');
my %mathchoices=('' => 'Default',
'tth' => 'TeX to HTML',
#'ttm' => 'TeX to MathML',
'jsMath' => 'jsMath',
'mimetex' => 'Convert to Images'
);
my $selectionbox=&Apache::loncommon::select_form($texengine,'texengine',
%mathchoices);
my $jsMath_start=&Apache::lontexconvert::jsMath_header();
my $change=&mt('Change');
$r->print(<<ENDLSCREEN);
<br />
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_texengine" />
<p>$pref: $selectionbox</p>
<p><input type="submit" value="$change" /></p>
</form>
Examples:
<p> TeX to HTML <br />
<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" hieght="200"></iframe>
</p>
<p>jsMath <br />
$jsMath_start
<script type="text/javascript">
if (jsMath.nofonts == 1) {
document.writeln
('<center><div style="padding: 10; border-style: solid; border-width:3;'
+' border-color: #DD0000; background-color: #FFF8F8; width: 75%; text-align: left">'
+'<small><font color="#AA0000"><b>Warning:</b> '
+'It looks like you don\\\'t have the TeX math fonts installed. '
+'The jsMath example on this page may not look right without them. '
+'The <a href="http://www.math.union.edu/locate/jsMath/" target="_blank"> '
+'jsMath Home Page</a> has information on how to download the '
+'needed fonts. In the meantime, jsMath will do the best it can '
+'with the fonts you have, but it may not be pretty and some equations '
+'may not be rendered correctly. '
+'</font></small></div></center>');
}
</script>
<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" hieght="200"></iframe>
</p>
<p> Convert to Images <br />
<br />
<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" hieght="200"></iframe>
</p>
ENDLSCREEN
if ($env{'environment.texengine'} ne 'jsMath') {
$r->print('<script type="text/javascript">jsMath.Process()</script>');
}
}
sub verify_and_change_texengine {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
# Screenname
my $newtexengine = $env{'form.texengine'};
$newtexengine=~s/[^\-\w]//g;
if ($newtexengine eq 'ttm') {
&Apache::lonnet::appenv('browser.mathml' => 1);
} else {
if ($env{'environment.texengine'} eq 'ttm') {
&Apache::lonnet::appenv('browser.mathml' => 0);
}
}
my $message='';
if ($newtexengine) {
&Apache::lonnet::put('environment',{'texengine' => $newtexengine});
&Apache::lonnet::appenv('environment.texengine' => $newtexengine);
$message='Set new preferred math display to '.$newtexengine;
} else {
&Apache::lonnet::del('environment',['texengine']);
&Apache::lonnet::delenv('environment\.texengine');
$message='Reset preferred math display.';
}
$r->print(<<ENDVCSCREEN);
$message
ENDVCSCREEN
}
################################################################
# Roles Page Preference Change Subroutines #
################################################################
sub rolesprefchanger {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
my %userenv = &Apache::lonnet::get
('environment',['recentroles','recentrolesn']);
my $hotlist_flag=$userenv{'recentroles'};
my $hotlist_n=$userenv{'recentrolesn'};
my $checked;
if ($hotlist_flag) {
$checked = 'checked="checked"';
}
if (!$hotlist_n) { $hotlist_n=3; }
my $options;
for (my $i=1; $i<10; $i++) {
my $select;
if ($hotlist_n == $i) { $select = 'selected="selected"'; }
$options .= "<option $select>$i</option>\n";
}
# Get list of recent roles and display with checkbox in front
my $roles_check_list = '';
my $role_key='';
if ($env{'environment.recentroles'}) {
my %recent_roles =
&Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
my %frozen_roles =
&Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
my %role_text = &rolespref_get_role_text([keys(%recent_roles)]);
my @sorted_roles = sort {$role_text{$a} cmp $role_text{$b}} keys(%role_text);
$roles_check_list .=
&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().
"<th>".&mt('Freeze Role')."</th>".
"<th>".&mt('Role')."</td>".
&Apache::loncommon::end_data_table_header_row().
"\n";
my $count;
foreach $role_key (@sorted_roles) {
my $checked = "";
my $value = $recent_roles{$role_key};
if ($frozen_roles{$role_key}) {
$checked = "checked=\"checked\"";
}
$count++;
$roles_check_list .=
&Apache::loncommon::start_data_table_row().
'<td class="LC_table_cell_checkbox">'.
"<input type=\"checkbox\" $checked name=\"freezeroles\"".
" id=\"freezeroles$count\" value=\"$role_key\" /></td>".
"<td><label for=\"freezeroles$count\">".
"$role_text{$role_key}</label></td>".
&Apache::loncommon::end_data_table_row(). "\n";
}
$roles_check_list .= "</table>\n";
}
$r->print('
<p>'.&mt('Some LON-CAPA users have a long list of roles. The Recent Roles Hotlist feature keeps track of the last N roles which have been visited and places a table of these at the top of the roles page. People with very few roles should leave this feature disabled.').'
</p>
<form name="prefs" action="/adm/preferences" method="POST">
<input type="hidden" name="action" value="verify_and_change_rolespref" />
<br /><label>'.&mt('Enable Recent Roles Hotlist:').'
<input type="checkbox" '.$checked.' name="recentroles" value="true" /></label>
<br />'.&mt('Number of roles in Hotlist:').'
<select name="recentrolesn" size="1">
'.$options.'
</select>
<p>'.&mt('This list below can be used to <q>freeze</q> roles on your screen. Those marked as frozen will not be removed from the list, even if they have not been used recently.').'
</p>
'.$roles_check_list.'
<br />
<input type="submit" value="'.&mt('Change').'" />
</form>');
}
sub rolespref_get_role_text {
# Get a line of text for each role
my ($roles) = @_;
my %roletext = ();
foreach my $item (@$roles) {
# get course information
my ($role,$rest) = split(/\./, $item);
my $trole = "";
$trole = &Apache::lonnet::plaintext($role);
my ($tdomain,$other,$tsection)= split(/\//,Apache::lonnet::declutter($rest));
my $tother = '-';
if ($role =~ /^(cc|st|in|ta|ep|cr)/ ) {
my %newhash=&Apache::lonnet::coursedescription($tdomain."_".$other);
$tother = " - ".$newhash{'description'};
} elsif ($role =~ /dc/) {
$tother = "";
} else {
$tother = " - $other";
}
my $section="";
if ($tsection) {
$section = " - Section/Group: $tsection";
}
$roletext{$item} = $tdomain." - ".$trole.$tother.$section;
}
return %roletext;
}
sub verify_and_change_rolespref {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
# Recent Roles Hotlist Flag
my $hotlist_flag = $env{'form.recentroles'};
my $hotlist_n = $env{'form.recentrolesn'};
my $message='<hr />';
if ($hotlist_flag) {
&Apache::lonnet::put('environment',{'recentroles' => $hotlist_flag});
&Apache::lonnet::appenv('environment.recentroles' => $hotlist_flag);
$message=&mt('Recent Roles Hotlist is Enabled');
} else {
&Apache::lonnet::del('environment',['recentroles']);
&Apache::lonnet::delenv('environment\.recentroles');
$message=&mt('Recent Roles Hotlist is Disabled');
}
if ($hotlist_n) {
&Apache::lonnet::put('environment',{'recentrolesn' => $hotlist_n});
&Apache::lonnet::appenv('environment.recentrolesn' => $hotlist_n);
if ($hotlist_flag) {
$message.="<br />".
&mt('Display [_1] Most Recent Roles',$hotlist_n)."\n";
}
}
# Get list of froze roles and list of recent roles
my @freeze_list = &Apache::loncommon::get_env_multiple('form.freezeroles');
my %freeze = ();
my %roletext = ();
foreach my $key (@freeze_list) {
$freeze{$key}='1';
}
my %recent_roles =
&Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
my %frozen_roles =
&Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
my %role_text = &rolespref_get_role_text([keys(%recent_roles)]);
# Unset any roles that were previously frozen but aren't in list
foreach my $role_key (sort(keys(%recent_roles))) {
if (($frozen_roles{$role_key}) && (!exists($freeze{$role_key}))) {
$message .= "<br />".&mt('Unfreezing Role: [_1]',$role_text{$role_key})."\n";
&Apache::lonhtmlcommon::store_recent('roles',$role_key,' ',0);
}
}
# Freeze selected roles
foreach my $role_key (@freeze_list) {
if (!$frozen_roles{$role_key}) {
$message .= "<br />".&mt('Freezing Role: [_1]',$role_text{$role_key})."\n";
&Apache::lonhtmlcommon::store_recent('roles',
$role_key,' ',1);
}
}
$message .= "<hr /><br />\n";
$r->print(<<ENDRPSCREEN);
$message
ENDRPSCREEN
}
################################################################
# 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'};
$r->print(<<ENDSCREEN);
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_screenname" />
<br />New screenname (shown if you post anonymously):
<input type="text" size="20" value="$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');
$message.='Reset nickname';
}
&Apache::lonnet::devalidate_cache_new('namescache',$user.':'.$domain);
$r->print(<<ENDVCSCREEN);
$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);
$forwardingHelp <br />
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_msgforward" />
New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
<input type="text" size="40" value="$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(/[\@\:]/,$_);
$msuser = &LONCAPA::clean_username($msuser);
$msdomain = &LONCAPA::clean_domain($msdomain);
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);
$message
ENDVCMSG
}
################################################################
# Colors #
################################################################
sub colorschanger {
my $r = shift;
# figure out colors
my $function=&Apache::loncommon::get_users_function();
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 $start_data_table = &Apache::loncommon::start_data_table();
my $chtable='';
foreach my $item (sort(keys(%colortypes))) {
my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
$chtable.=&Apache::loncommon::start_data_table_row().
'<td>'.$colortypes{$item}.'</td><td style="background: '.$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>'.
&Apache::loncommon::end_data_table_row()."\n";
}
my $end_data_table = &Apache::loncommon::end_data_table();
my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
$r->print(<<ENDCOL);
<script type="text/javascript">
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.prefs.'+
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="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_colors" />
$start_data_table
$chtable
$end_data_table
</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=&Apache::loncommon::get_users_function();
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 />';
}
}
my $now = time;
&Apache::lonnet::put('environment',{'color.timestamp' => $now});
&Apache::lonnet::appenv('environment.color.timestamp' => $now);
$r->print(<<ENDVCCOL);
$message
<form name="client" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="changecolors" />
</form>
ENDVCCOL
}
######################################################
# password handler subroutines #
######################################################
sub passwordchanger {
my ($r,$errormessage,$caller,$mailtoken) = @_;
# This function is a bit of a mess....
# Passwords are encrypted using londes.js (DES encryption)
$errormessage = ($errormessage || '');
my ($user,$domain,$currentpass,$defdom);
if ((!defined($caller)) || ($caller eq 'preferences')) {
$user = $env{'user.name'};
$domain = $env{'user.domain'};
if (!defined($caller)) {
$caller = 'preferences';
}
} elsif ($caller eq 'reset_by_email') {
$defdom = $r->dir_config('lonDefDomain');
my %data = &Apache::lonnet::tmpget($mailtoken);
if (keys(%data) == 0) {
$r->print(&mt('Sorry, the URL you provided to complete the reset of your password was invalid. Either the token included in the URL has been deleted or the URL you provided was invalid. Please submit a <a href="/adm/resetpw">new request</a> for a password reset, and follow the link to the new URL included in the e-mail that will be sent to you, to allow you to enter a new password.'));
return;
}
if (defined($data{time})) {
if (time - $data{'time'} < 7200) {
$user = $data{'username'};
$domain = $data{'domain'};
$currentpass = $data{'temppasswd'};
} else {
$r->print(&mt('Sorry, the token generated when you requested a password reset has expired.').'<br />');
return;
}
} else {
$r->print(&mt('Sorry, the URL generated when you requested reset of your password contained incomplete information.').'<br />');
return;
}
} else {
$r->print(&mt('Page requested in unexpected context').'<br />');
return;
}
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
my %hexkey;
$hexkey{'ukey_cpass'} = hex($ukey_cpass);
$hexkey{'lkey_cpass'} = hex($lkey_cpass);
$hexkey{'ukey_npass1'} = hex($ukey_npass1);
$hexkey{'lkey_npass1'} = hex($lkey_npass1);
$hexkey{'ukey_npass2'} = hex($ukey_npass2);
$hexkey{'lkey_npass2'} = hex($lkey_npass2);
# Output javascript to deal with passwords
# Output DES javascript
{
my $include = $r->dir_config('lonIncludes');
my $jsh=Apache::File->new($include."/londes.js");
$r->print(<$jsh>);
}
$r->print(&jscript_send($caller));
$r->print(<<ENDFORM);
$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 -->
ENDFORM
$r->print(&server_form($logtoken,$caller,$mailtoken));
$r->print(&client_form($caller,\%hexkey,$currentpass,$defdom));
#
return;
}
sub jscript_send {
my ($caller) = @_;
my $output = qq|
<script language="JavaScript">
function send() {
uextkey=this.document.client.elements.ukey_cpass.value;
lextkey=this.document.client.elements.lkey_cpass.value;
initkeys();
this.document.pserver.elements.currentpass.value
=crypted(this.document.client.elements.currentpass.value);
uextkey=this.document.client.elements.ukey_npass1.value;
lextkey=this.document.client.elements.lkey_npass1.value;
initkeys();
this.document.pserver.elements.newpass_1.value
=crypted(this.document.client.elements.newpass_1.value);
uextkey=this.document.client.elements.ukey_npass2.value;
lextkey=this.document.client.elements.lkey_npass2.value;
initkeys();
this.document.pserver.elements.newpass_2.value
=crypted(this.document.client.elements.newpass_2.value);
|;
if ($caller eq 'reset_by_email') {
$output .= qq|
this.document.pserver.elements.uname.value =
this.document.client.elements.uname.value;
this.document.pserver.elements.udom.value =
this.document.client.elements.udom.options[this.document.client.elements.udom.selectedIndex].value;
|;
}
$ output .= qq|
this.document.pserver.submit();
}
</script>
|;
}
sub client_form {
my ($caller,$hexkey,$currentpass,$defdom) = @_;
my $output = qq|
<form name="client" >
<table>
|;
if ($caller eq 'reset_by_email') {
$output .= qq|
<tr><td align="right"> E-mail address: </td>
<td><input type="text" name="email" size="15" /> </td></tr>
<tr><td align="right"> Username: </td>
<td>
<input type="text" name="uname" size="10" />
<input type="hidden" name="currentpass" value="$currentpass" />
</td></tr>
<tr><td align="right"> Domain: </td>
<td>
|;
$output .= &Apache::loncommon::select_dom_form($defdom,'udom').'
</td>
</tr>
';
} else {
$output .= qq|
<tr><td align="right"> Current password: </td>
<td><input type="password" name="currentpass" size="10"/> </td></tr>
|;
}
$output .= <<"ENDFORM";
<tr><td align="right"> New password: </td>
<td><input type="password" name="newpass_1" size="10" /> </td></tr>
<tr><td align="right"> Confirm password: </td>
<td><input type="password" name="newpass_2" size="10" /> </td></tr>
<tr><td colspan="2" align="center">
<input type="button" value="Change Password" onClick="send();">
</table>
<input type="hidden" name="ukey_cpass" value="$hexkey->{'ukey_cpass'}" />
<input type="hidden" name="lkey_cpass" value="$hexkey->{'lkey_cpass'}" />
<input type="hidden" name="ukey_npass1" value="$hexkey->{'ukey_npass1'}" />
<input type="hidden" name="lkey_npass1" value="$hexkey->{'lkey_npass1'}" />
<input type="hidden" name="ukey_npass2" value="$hexkey->{'ukey_npass2'}" />
<input type="hidden" name="lkey_npass2" value="$hexkey->{'lkey_npass2'}" />
</form>
</p>
ENDFORM
return $output;
}
sub server_form {
my ($logtoken,$caller,$mailtoken) = @_;
my $action = '/adm/preferences';
if ($caller eq 'reset_by_email') {
$action = '/adm/resetpw';
}
my $output = qq|
<form name="pserver" action="$action" method="post">
<input type="hidden" name="logtoken" value="$logtoken" />
<input type="hidden" name="currentpass" value="" />
<input type="hidden" name="newpass_1" value="" />
<input type="hidden" name="newpass_2" value="" />
|;
if ($caller eq 'reset_by_email') {
$output .= qq|
<input type="hidden" name="token" value="$mailtoken" />
<input type="hidden" name="uname" value="" />
<input type="hidden" name="udom" value="" />
|;
}
$output .= qq|
<input type="hidden" name="action" value="verify_and_change_pass" />
</form>
|;
return $output;
}
sub verify_and_change_password {
my ($r,$caller,$mailtoken) = @_;
my ($user,$domain,$homeserver);
if ($caller eq 'reset_by_email') {
$user = $env{'form.uname'};
$domain = $env{'form.udom'};
if ($user ne '' && $domain ne '') {
$homeserver = &Apache::lonnet::homeserver($user,$domain);
if ($homeserver eq 'no_host') {
&passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
"Invalid username and/or domain .\n</p>",
$caller,$mailtoken);
return 1;
}
} else {
&passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
"Username and Domain were blank.\n</p>",
$caller,$mailtoken);
return 1;
}
} else {
$user = $env{'user.name'};
$domain = $env{'user.domain'};
$homeserver = $env{'user.home'};
}
my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
# Check for authentication types that allow changing of the password.
if ($currentauth !~ /^(unix|internal):/) {
if ($caller eq 'reset_by_email') {
&passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
"Authentication type for this user can not be changed by this mechanism..\n</p>",
$caller,$mailtoken);
return 1;
} else {
return;
}
}
#
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($r,"<p>\n<font color='#ff0000'>ERROR</font>".
"One or more password fields were blank.\n</p>",$caller,$mailtoken);
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
my $tryagain_text = &mt('Please log out and try again.');
if ($caller eq 'reset_by_email') {
$tryagain_text = &mt('Please try again later.');
}
$r->print(<<ENDERROR);
<p>
<font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
password decryption. $tryagain_text
</p>
ENDERROR
# Probably should log an error here
return 1;
}
my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
#
$currentpass = &des_decrypt($ckey ,$currentpass);
$newpass1 = &des_decrypt($n1key,$newpass1);
$newpass2 = &des_decrypt($n2key,$newpass2);
#
if ($caller eq 'reset_by_email') {
my %data = &Apache::lonnet::tmpget($mailtoken);
if ($currentpass ne $data{'temppasswd'}) {
&passwordchanger($r,
'<font color="#ff0000">ERROR:</font>'.
'Could not verify current authentication. '.
'Please try again.',$caller,$mailtoken);
return 1;
}
}
if ($newpass1 ne $newpass2) {
&passwordchanger($r,
'<font color="#ff0000">ERROR:</font>'.
'The new passwords you entered do not match. '.
'Please try again.',$caller,$mailtoken);
return 1;
}
if (length($newpass1) < 7) {
&passwordchanger($r,
'<font color="#ff0000">ERROR:</font>'.
'Passwords must be a minimum of 7 characters long. '.
'Please try again.',$caller,$mailtoken);
return 1;
}
#
# 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.
my $errormessage = <<"ENDERROR";
<font color="#ff0000">ERROR:</font>
The password you entered contained illegal characters.<br />
Valid characters are: space and <br />
<pre>
!"\#$%&\'()*+,-./0123456789:;<=>?\@
ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
</pre>
ENDERROR
&passwordchanger($r,$errormessage,$caller,$mailtoken);
return 1;
}
#
# Change the password (finally)
my $result = &Apache::lonnet::changepass
($user,$domain,$currentpass,$newpass1,$homeserver,$caller);
# Inform the user the password has (not?) been changed
if ($result =~ /^ok$/) {
$r->print(<<"ENDTEXT");
<h3>The password for $user was successfully changed</h3>
ENDTEXT
} else {
# error error: run in circles, scream and shout
$r->print(<<ENDERROR);
<h3><font color="#ff0000">The password for $user was not changed</font></h3>
Please make sure your old password was entered correctly.
ENDERROR
return 1;
}
return;
}
################################################################
# discussion display subroutines
################################################################
sub discussionchanger {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
my %userenv = &Apache::lonnet::get
('environment',['discdisplay','discmarkread']);
my $discdisp = 'allposts';
my $discmark = 'onmark';
if (defined($userenv{'discdisplay'})) {
unless ($userenv{'discdisplay'} eq '') {
$discdisp = $userenv{'discdisplay'};
}
}
if (defined($userenv{'discmarkread'})) {
unless ($userenv{'discdisplay'} eq '') {
$discmark = $userenv{'discmarkread'};
}
}
my $newdisp = 'unread';
my $newmark = 'ondisp';
my $function = &Apache::loncommon::get_users_function();
my $color = &Apache::loncommon::designparm($function.'.tabbg',
$env{'user.domain'});
my %lt = &Apache::lonlocal::texthash(
'pref' => 'Display Preference',
'curr' => 'Current setting ',
'actn' => 'Action',
'sdpf' => 'Set display preferences for discussion posts for both bulletin boards and individual resources in all your courses.',
'prca' => 'Preferences can be set that determine',
'whpo' => 'Which posts are displayed when you display a bulletin board or resource, and',
'unwh' => 'Under what circumstances posts are identfied as "New"',
'allposts' => 'All posts',
'unread' => 'New posts only',
'ondisp' => 'Once displayed',
'onmark' => 'Once marked as read',
'disa' => 'Posts displayed?',
'npmr' => 'New posts cease to be identified as "New"?',
'thde' => 'The preferences you set here can be overridden within each individual discussion.',
'chgt' => 'Change to '
);
my $dispchange = $lt{'unread'};
my $markchange = $lt{'ondisp'};
my $currdisp = $lt{'allposts'};
my $currmark = $lt{'onmark'};
if ($discdisp eq 'unread') {
$dispchange = $lt{'allposts'};
$currdisp = $lt{'unread'};
$newdisp = 'allposts';
}
if ($discmark eq 'ondisp') {
$markchange = $lt{'onmark'};
$currmark = $lt{'ondisp'};
$newmark = 'onmark';
}
$r->print(<<"END");
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_discussion" />
<br />
$lt{'sdpf'}<br /> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li></ol>
<br />
<br />
END
$r->print(&Apache::loncommon::start_data_table());
$r->print(<<"END");
<tr>
<th>$lt{'pref'}</th>
<th>$lt{'curr'}</th>
<th>$lt{'actn'}?</th>
</tr>
END
$r->print(&Apache::loncommon::start_data_table_row());
$r->print(<<"END");
<td>$lt{'disa'}</td>
<td>$lt{$discdisp}</td>
<td><label><input type="checkbox" name="discdisp" /><input type="hidden" name="newdisp" value="$newdisp" /> $lt{'chgt'} "$dispchange"</label></td>
END
$r->print(&Apache::loncommon::end_data_table_row().
&Apache::loncommon::start_data_table_row());
$r->print(<<"END");
<td>$lt{'npmr'}</td>
<td>$lt{$discmark}</td>
<td><label><input type="checkbox" name="discmark" /><input type="hidden" name="newmark" value="$newmark" /> $lt{'chgt'} "$markchange"</label></td>
</tr>
END
$r->print(&Apache::loncommon::end_data_table_row().
&Apache::loncommon::end_data_table());
$r->print(<<"END");
<br />
<br />
<input type="submit" name="sub" value="Store Changes" />
<br />
<br />
Note: $lt{'thde'}
</form>
END
}
sub verify_and_change_discussion {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
my $message='';
if (defined($env{'form.discdisp'}) ) {
my $newdisp = $env{'form.newdisp'};
if ($newdisp eq 'unread') {
$message .='In discussions: only new posts will be displayed.<br />';
&Apache::lonnet::put('environment',{'discdisplay' => $newdisp});
&Apache::lonnet::appenv('environment.discdisplay' => $newdisp);
} else {
$message .= 'In discussions: all posts will be displayed.<br />';
&Apache::lonnet::del('environment',['discdisplay']);
&Apache::lonnet::delenv('environment\.discdisplay');
}
}
if (defined($env{'form.discmark'}) ) {
my $newmark = $env{'form.newmark'};
if ($newmark eq 'ondisp') {
$message.='In discussions: new posts will be cease to be identified as "new" after display.<br />';
&Apache::lonnet::put('environment',{'discmarkread' => $newmark});
&Apache::lonnet::appenv('environment.discmarkread' => $newmark);
} else {
$message.='In discussions: posts will be identified as "new" until marked as read by the reader.<br />';
&Apache::lonnet::del('environment',['discmarkread']);
&Apache::lonnet::delenv('environment\.discmarkread');
}
}
$r->print(<<ENDVCSCREEN);
$message
ENDVCSCREEN
}
################################################################
# Subroutines for page display on course access (Course Coordinators)
################################################################
sub coursedisplaychanger {
my $r = shift;
my $user = $env{'user.name'};
my $domain = $env{'user.domain'};
my %userenv = &Apache::lonnet::get('environment',['course_init_display']);
my $currvalue = 'whatsnew';
my $firstselect = '';
my $whatsnewselect = 'checked="checked"';
if (exists($userenv{'course_init_display'})) {
if ($userenv{'course_init_display'} eq 'firstres') {
$currvalue = 'firstres';
$firstselect = 'checked="checked"';
$whatsnewselect = '';
}
}
my %pagenames = (
firstres => 'First resource',
whatsnew => "What's new page",
);
my $whatsnew_off=&mt('Display the [_1] in the course.','<b>first resource</b>');
my $whatsnew_on=&mt('Display the "[_1]" page - a summary of items in the course which require attention.',"<b>What's New</b>");
$r->print('<br /><b>'.&mt('Set the default page to be displayed when you select a course role').'</b> '.&mt('(Currently: [_1])',$pagenames{$currvalue}).'<br />'.&mt('The global user preference you set for your courses can be overridden in an individual course by setting a course specific setting via the "[_1]" page in the course',"<i>What's New</i>").'<br /><br />');
$r->print(<<ENDLSCREEN);
<form name="prefs" action="/adm/preferences" method="post">
<input type="hidden" name="action" value="verify_and_change_coursepage" />
<br />
<label><input type="radio" name="newdisp" value="firstres" $firstselect /> $whatsnew_off</label><br />
<label><input type="radio" name="newdisp" value="whatsnew" $whatsnewselect /> $whatsnew_on</label><input type="hidden" name="refpage" value="$env{'form.refpage'}" />
ENDLSCREEN
$r->print('<br /><br /><input type="submit" value="'.&mt('Change').'" />
</form>');
}
sub verify_and_change_coursepage {
my $r = shift;
my $message='';
my %lt = &Apache::lonlocal::texthash(
'defs' => 'Default now set',
'when' => 'when you select a course role from the roles screen',
'ywbt' => 'you will be taken to the start of the course.',
'apwb' => 'a page will be displayed that lists items in the course that may require action from you.',
'gtts' => 'Go to the start of the course',
'dasp' => "Display the What's New page listing course action items",
);
my $newdisp = $env{'form.newdisp'};
$message = '<b>'.$lt{'defs'}.'</b>: '.$lt{'when'}.', ';
if ($newdisp eq 'firstres') {
$message .= $lt{'ywbt'}.'<br />';
&Apache::lonnet::put('environment',{'course_init_display' => $newdisp});
&Apache::lonnet::appenv('environment.course_init_display' => $newdisp);
} else {
$message .= $lt{'apwb'}.'<br />';
&Apache::lonnet::del('environment',['course_init_display']);
&Apache::lonnet::delenv('environment\.course_init_display');
}
my $refpage = $env{'form.refpage'};
if (($env{'request.course.fn'}) && ($env{'request.course.id'})) {
if ($newdisp eq 'firstres') {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my ($furl,$ferr)=
&Apache::lonuserstate::readmap($cdom.'/'.$cnum);
$message .= '<br /><font size="+1"><a href="'.$furl.'">'.$lt{'gtts'}.' <i>'.&mt('now').'</i></a></font>';
} else {
$message .= '<br /><font size="+1"><a href="/adm/whatsnew?refpage='.
$refpage.'">'.$lt{'dasp'}.'</a></font>';
}
}
$r->print(<<ENDVCSCREEN);
$message
<br /><br />
ENDVCSCREEN
}
######################################################
# other handler subroutines #
######################################################
################################################################
# Main handler #
################################################################
sub handler {
my $r = shift;
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','wysiwyg','returnurl','refpage']);
#
&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 => 'not_on_error',
}));
}
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',
}));
push (@Options,({ action => 'changemsgforward',
linktext => 'Change Message Forwarding 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},
help => 'Prefs_About_Me',
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',
help => 'Prefs_Language',
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, }
));
push (@Options,({ action => 'changewysiwyg',
linktext => 'Change WYSIWYG Editor Preferences',
href => '/adm/preferences',
breadcrumb =>
{ href => '/adm/preferences?action=changewysiwyg',
text => 'Change WYSIWYG Preferences'},
subroutine => \&wysiwygchanger,
},
{ action => 'set_wysiwyg',
breadcrumb =>
{ href => '/adm/preferences?action=changewysiwyg',
text => 'Change WYSIWYG Preferences'},
printmenu => 'yes',
subroutine => \&verify_and_change_wysiwyg, }
));
push (@Options,({ action => 'changediscussions',
linktext => 'Change Discussion Display Preferences',
href => '/adm/preferences',
help => 'Change_Discussion_Display',
breadcrumb =>
{ href => '/adm/preferences?action=changediscussions',
text => 'Change Discussion Preferences'},
subroutine => \&discussionchanger,
},
{ action => 'verify_and_change_discussion',
breadcrumb =>
{ href => '/adm/preferences?action=changediscussions',
text => 'Change Discussion Preferences'},
printmenu => 'yes',
subroutine => \&verify_and_change_discussion, }
));
push (@Options,({ action => 'changerolespref',
linktext => 'Change Roles Page Preferences',
href => '/adm/preferences',
subroutine => \&rolesprefchanger,
breadcrumb =>
{ href => '/adm/preferences?action=changerolespref',
text => 'Change Roles Pref'},
},
{ action => 'verify_and_change_rolespref',
subroutine => \&verify_and_change_rolespref,
breadcrumb =>
{ href => '/adm/preferences?action=changerolespref',
text => 'Change Roles Preferences'},
printmenu => 'yes',
}));
push (@Options,({ action => 'changetexenginepref',
linktext => 'Change How Math Equations Are Displayed',
href => '/adm/preferences',
subroutine => \&texenginechanger,
breadcrumb =>
{ href => '/adm/preferences?action=changetexenginepref',
text => 'Change Math Pref'},
},
{ action => 'verify_and_change_texengine',
subroutine => \&verify_and_change_texengine,
breadcrumb =>
{ href => '/adm/preferences?action=changetexenginepref',
text => 'Change Math Preferences'},
printmenu => 'yes',
}));
if ($env{'environment.remote'} eq 'off') {
push (@Options,({ action => 'launch',
linktext => 'Launch Remote Control',
href => '/adm/remote?url=/adm/preferences',
}));
} else {
push (@Options,({ action => 'collapse',
linktext => 'Collapse Remote Control',
href => '/adm/remote?url=/adm/preferences',
}));
}
if (&Apache::lonnet::allowed('whn',$env{'request.course.id'})
|| &Apache::lonnet::allowed('whn',$env{'request.course.id'}.'/'
.$env{'request.course.sec'})) {
push (@Options,({ action => 'changecourseinit',
linktext => 'Change Course Initialization Preference',
href => '/adm/preferences',
subroutine => \&coursedisplaychanger,
breadcrumb =>
{ href => '/adm/preferences?action=changecourseinit',
text => 'Change Course Init. Pref.'},
},
{ action => 'verify_and_change_coursepage',
breadcrumb =>
{ href => '/adm/preferences?action=changecourseinit', text => 'Change Course Initialization Preference'},
printmenu => 'yes',
subroutine => \&verify_and_change_coursepage,
}));
}
if ($env{'user.name'} =~ /^(albertel|fox|foxr|koretemey|korte|hallmat3|turtle|raeburn)$/) {
push (@Options,({ action => 'debugtoggle',
printmenu => 'yes',
subroutine => \&toggle_debug,
}));
}
$r->print(&Apache::loncommon::start_page('Change Preferences'));
my $call = undef;
my $help = 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'});
}
$help=$option->{'help'};
}
}
$r->print(&Apache::lonhtmlcommon::breadcrumbs('Change Preferences',$help));
my $error;
if (defined($call)) {
$error = $call->($r);
}
if ( ( ($printmenu eq 'yes')
|| ($printmenu eq 'not_on_error' && !$error) )
&& (!$env{'form.returnurl'})) {
my $optionlist = '<table cellpadding="5">';
if ($env{'user.name'} =~
/^(albertel|kortemey|fox|foxr|korte|hallmat3|turtle|raeburn)$/
) {
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'})) {
$option->{'href_args'}{'action'}=$option->{'action'};
$optiontext .=
'<a href="'.&add_get_param($option->{'href'},
$option->{'href_args'}).'">'.
&mt($option->{'linktext'}).'</a>';
}
if (exists($option->{'text'})) {
$optiontext .= ' '.&mt($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);
} elsif ($env{'form.returnurl'}) {
$r->print('<br /><a href="'.$env{'form.returnurl'}.'"><font size="+1">'.
&mt('Return').'</font></a>');
}
$r->print(&Apache::loncommon::end_page());
return OK;
}
sub toggle_debug {
if ($env{'user.debug'}) {
&Apache::lonnet::delenv('user\.debug');
} else {
&Apache::lonnet::appenv('user.debug' => 1);
}
}
1;
__END__
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