--- loncom/interface/lonpreferences.pm 2001/12/19 17:17:46 1.2
+++ loncom/interface/lonpreferences.pm 2008/05/20 18:19:31 1.120
@@ -1,7 +1,7 @@
# The LearningOnline Network
# Preferences
#
-# $Id: lonpreferences.pm,v 1.2 2001/12/19 17:17:46 albertel Exp $
+# $Id: lonpreferences.pm,v 1.120 2008/05/20 18:19:31 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,41 +25,2028 @@
#
# http://www.lon-capa.org/
#
-# (Internal Server Error Handler
-#
-# (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)
-#
-# 3/1/1 Gerd Kortemeyer)
-#
-# 3/1 Gerd Kortemeyer
+# 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');
+ $r->print(< '.&mt('Setting WYSIWYG editor to:').' '.&mt($newsetting).' TeX to HTML jsMath Convert to Images '.&mt('Some LON-CAPA users have a long list of '.$lc_role.'s. The Recent '.$role.'s Hotlist feature keeps track of the last N '.$lc_role.'s which have been visited and places a table of these at the top of the '.$lc_role.'s page. People with very few '.$lc_role.'s should leave this feature disabled.').'
+
+
+
+ENDLSCREEN
+ $r->print('
');
+}
+
+
+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('
$pref: $selectionbox
+ENDLSCREEN
+ $r->print('
');
+}
+
+
+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});
+ $message=&mt('Set new preferred languages to ').'"'.$newlanguage.'".';
+ } else {
+ &Apache::lonnet::del('environment',['languages']);
+ &Apache::lonnet::delenv('environment\.languages');
+ $message=&mt('Reset preferred language.');
+ }
+ $r->print(<
+
+
+$jsMath_start
+
+
+
+
+
+
+".&mt($role)."".
+ &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().
+ ' '.
+ " ".
+ "".
+ &Apache::loncommon::end_data_table_row(). "\n";
+ }
+ $roles_check_list .= "\n";
+ }
+
+ $r->print('
+
';
+ if ($hotlist_flag) {
+ &Apache::lonnet::put('environment',{'recentroles' => $hotlist_flag});
+ &Apache::lonnet::appenv({'environment.recentroles' => $hotlist_flag});
+ $message=&mt('Recent '.$role.'s Hotlist is Enabled');
+ } else {
+ &Apache::lonnet::del('environment',['recentroles']);
+ &Apache::lonnet::delenv('environment\.recentroles');
+ $message=&mt('Recent '.$role.'s Hotlist is Disabled');
+ }
+ if ($hotlist_n) {
+ &Apache::lonnet::put('environment',{'recentrolesn' => $hotlist_n});
+ &Apache::lonnet::appenv({'environment.recentrolesn' => $hotlist_n});
+ if ($hotlist_flag) {
+ $message.="
".
+ &mt('Display [_1] Most Recent '.$role.'s',$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}))) {
+ $message .= "
".&mt('Unfreezing '.$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}) {
+ $message .= "
".&mt('Freezing '.$role.': [_1]',$role_text{$role_key})."\n";
+ &Apache::lonhtmlcommon::store_recent('roles',
+ $role_key,' ',1);
+ }
+ }
+ $message .= "
\n";
+
+ $r->print(<
$lt{'text_screenname'}
+
+
$lt{'text_nickname'}
+
+
+
+
+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});
+ $message=&mt('Set new screenname to ').'"'.$newscreen.'.".';
+ } else {
+ &Apache::lonnet::del('environment',['screenname']);
+ &Apache::lonnet::delenv('environment\.screenname');
+ $message=&mt('Reset screenname.');
+ }
+# Nickname
+ $message.='
';
+ $newscreen = $env{'form.nickname'};
+ $newscreen=~s/[^ \w]//g;
+ if ($newscreen) {
+ &Apache::lonnet::put('environment',{'nickname' => $newscreen});
+ &Apache::lonnet::appenv({'environment.nickname' => $newscreen});
+ $message.=&mt('Set new nickname to ').'"'.$newscreen.'".';
+ } else {
+ &Apache::lonnet::del('environment',['nickname']);
+ &Apache::lonnet::delenv('environment\.nickname');
+ $message.=&mt('Reset nickname.');
+ }
+ &Apache::lonnet::devalidate_cache_new('namescache',$user.':'.$domain);
+ $r->print(<
+
+
+
+
+ENDSCREEN
+}
+
+sub verify_and_change_icons {
+ my $r = shift;
+ my $user = $env{'user.name'};
+ my $domain = $env{'user.domain'};
+ my $newicons = $env{'form.menumode'};
+
+ &Apache::lonnet::put('environment',{'icons' => $newicons});
+ &Apache::lonnet::appenv({'environment.icons' => $newicons});
+ $r->print(&mt('Set menu mode to [_1].',$newicons));
+}
+
+################################################################
+# Clicker Subroutines #
+################################################################
+
+sub clickerchanger {
+ my $r = shift;
+ my $user = $env{'user.name'};
+ my $domain = $env{'user.domain'};
+ my %userenv = &Apache::lonnet::get
+ ('environment',['clickers']);
+ my $clickers=$userenv{'clickers'};
+ $clickers=~s/\,/\n/gs;
+ my $text=&mt('Enter response device ("clicker") numbers');
+ my $change=&mt('Register');
+ my $helplink=&Apache::loncommon::help_open_topic('Clicker_Registration',&mt('Locating your clicker ID'));
+ $r->print(<
+
+
+
+ENDSCREEN
+}
+
+sub verify_and_change_domcoord {
+ my $r = shift;
+ my $user = $env{'user.name'};
+ my $domain = $env{'user.domain'};
+ my %domcoord=('domcoord.author' => '');
+ if ($env{'form.construction'}) { $domcoord{'domcoord.author'}='blocked'; }
+ &Apache::lonnet::put('environment',\%domcoord);
+ &Apache::lonnet::appenv({'environment.domcoord.author' => $domcoord{'domcoord.author'}});
+ $r->print(&mt('Registering Domain Coordinator access restrictions.'));
+}
+
+#################################################################
+## Lock Subroutines #
+#################################################################
+
+sub lockwarning {
+ my $r = shift;
+ my $title=&mt('Action locked');
+ my $texttop=&mt('LON-CAPA is currently performing the following actions:');
+ my $textbottom=&mt('Changing roles or logging out may result in data corruption.');
+ my ($num,%which)=&Apache::lonnet::get_locks();
+ my $which='';
+ foreach my $id (keys %which) {
+ $which.='$title
+$texttop
+
+$which
+
+$textbottom
+
+
+ENDSCREEN
+}
+sub verify_and_change_lockwarning {
+ my $r = shift;
+ &Apache::lonnet::remove_all_locks();
+ $r->print(&mt('Cleared locks.'));
+}
+
+
+################################################################
+# Message Forward #
+################################################################
+
+sub msgforwardchanger {
+ my ($r,$message) = @_;
+ my $user = $env{'user.name'};
+ my $domain = $env{'user.domain'};
+ my %userenv = &Apache::lonnet::get('environment',['msgforward','notification','critnotification','notifywithhtml']);
+ my $msgforward=$userenv{'msgforward'};
+ my %lt = &Apache::lonlocal::texthash(
+ all => 'All',
+ crit => 'Critical only',
+ reg => 'Non-critical only',
+ foad => 'Forwarding Address(es)',
+ noti => 'Notification E-mail Address(es)',
+ foad_exmpl => 'e.g. userA:domain1,userB:domain2,...',
+ mnot => 'Email Address(es) which should be notified about new LON-CAPA messages', # old: 'Message Notification Email Address(es)',
+ mnot_exmpl => 'e.g. joe@doe.com',
+ chg => 'Change',
+ 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 to preferences menu',
+ );
+ my $forwardingHelp = &Apache::loncommon::help_open_topic("Prefs_Forwarding");
+ my $notificationHelp = &Apache::loncommon::help_open_topic("Prefs_Notification");
+ my $criticalMessageHelp = &Apache::loncommon::help_open_topic("Course_Critical_Message");
+ my @allow_html = split(/,/,$userenv{'notifywithhtml'});
+ my %allnot = &get_notifications(\%userenv);
+ my $validatescript = &Apache::lonhtmlcommon::javascript_valid_email();
+ my $jscript = qq|
+
+|;
+ $r->print(<
';
+ }
+ }
+ }
+ $newscreen=~s/\,$//;
+ if ($newscreen) {
+ &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
+ &Apache::lonnet::appenv({'environment.msgforward' => $newscreen});
+ $message .= &mt('Set message forwarding to ').'"'.$newscreen.'".'
+ .'
';
+ } else {
+ &Apache::lonnet::del('environment',['msgforward']);
+ &Apache::lonnet::delenv('environment\.msgforward');
+ $message.= &mt("Set message forwarding to 'off'.").'
';
+ }
+ my $critnotification;
+ my $notification;
+ my $notify_with_html;
+ my $lastnotify = $env{'form.numnotify'}-1;
+ my $totaladdresses = 0;
+ for (my $i=0; $i<$env{'form.numnotify'}; $i++) {
+ if ((!defined($env{'form.del_notify_'.$i})) &&
+ ((($i==$lastnotify) && ($env{'form.add_notify_'.$lastnotify} == 1)) ||
+ ($i<$lastnotify))) {
+ if (defined($env{'form.address_'.$i})) {
+ if ($env{'form.notify_type_'.$i} eq 'all') {
+ $critnotification .= $env{'form.address_'.$i}.',';
+ $notification .= $env{'form.address_'.$i}.',';
+ } elsif ($env{'form.notify_type_'.$i} eq 'crit') {
+ $critnotification .= $env{'form.address_'.$i}.',';
+ } elsif ($env{'form.notify_type_'.$i} eq 'reg') {
+ $notification .= $env{'form.address_'.$i}.',';
+ }
+ if ($env{'form.html_'.$i} eq '1') {
+ $notify_with_html .= $env{'form.address_'.$i}.',';
+ }
+ $totaladdresses ++;
+ }
+ }
+ }
+ $critnotification =~ s/,$//;
+ $critnotification=~s/\s//gs;
+ $notification =~ s/,$//;
+ $notification=~s/\s//gs;
+ $notify_with_html =~ s/,$//;
+ $notify_with_html =~ s/\s//gs;
+ if ($notification) {
+ &Apache::lonnet::put('environment',{'notification' => $notification});
+ &Apache::lonnet::appenv({'environment.notification' => $notification});
+ $message.=&mt('Set non-critical message notification address(es) to ').'"'.$notification.'".
';
+ } else {
+ &Apache::lonnet::del('environment',['notification']);
+ &Apache::lonnet::delenv('environment\.notification');
+ $message.=&mt("Set non-critical message notification to 'off'.").'
';
+ }
+ if ($critnotification) {
+ &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
+ &Apache::lonnet::appenv({'environment.critnotification' => $critnotification});
+ $message.=&mt('Set critical message notification address(es) to ').'"'.$critnotification.'".
';
+ } else {
+ &Apache::lonnet::del('environment',['critnotification']);
+ &Apache::lonnet::delenv('environment\.critnotification');
+ $message.=&mt("Set critical message notification to 'off'.").'
';
+ }
+ if ($critnotification || $notification) {
+ if ($notify_with_html) {
+ &Apache::lonnet::put('environment',{'notifywithhtml' => $notify_with_html});
+ &Apache::lonnet::appenv({'environment.notifywithhtml' => $notify_with_html});
+ $message.=&mt('Set address(es) to receive excerpts with html retained ').'"'.$notify_with_html.'".';
+ } else {
+ &Apache::lonnet::del('environment',['notifywithhtml']);
+ &Apache::lonnet::delenv('environment\.notifywithhtml');
+ if ($totaladdresses == 1) {
+ $message.=&mt("Set notification address to receive excerpts with html stripped.");
+ } else {
+ $message.=&mt("Set all notification addresses to receive excerpts with html stripped.");
+ }
+ }
+ } else {
+ &Apache::lonnet::del('environment',['notifywithhtml']);
+ &Apache::lonnet::delenv('environment\.notifywithhtml');
+ }
+ if ($message) {
+ $message .= '
';
+ }
+ &Apache::loncommon::flush_email_cache($user,$domain);
+ &msgforwardchanger($r,$message);
+}
+
+################################################################
+# 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);
+ $chtable.=&Apache::loncommon::start_data_table_row().
+ ''.$colortypes{$item}.' Select '.
+ &Apache::loncommon::end_data_table_row()."\n";
+ }
+ my $end_data_table = &Apache::loncommon::end_data_table();
+ my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
+ $r->print(<
';
+ } else {
+ &Apache::lonnet::del('environment',[$entry]);
+ &Apache::lonnet::delenv('environment\.'.$entry);
+ $message.=&mt('Reset '.$colortypes{$item}.'.').'
';
+ }
+ }
+ my $now = time;
+ &Apache::lonnet::put('environment',{'color.timestamp' => $now});
+ &Apache::lonnet::appenv({'environment.color.timestamp' => $now});
+
+ $r->print(<
');
+ return;
+ }
+ } else {
+ $r->print(&mt('Sorry, the URL generated when you requested reset of your password contained incomplete information.').'
');
+ return;
+ }
+ } else {
+ $r->print(&mt('Page requested in unexpected context').'
');
+ 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(<
\n". + &mt("Invalid username and/or domain")."\n
", + $caller,$mailtoken); + return 1; + } + } else { + &passwordchanger($r,"\n". + &mt("Username and domain were blank")."\n
", + $caller,$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,"\n". + &mt("Authentication type for this user can not be changed by this mechanism"). + "\n
", + $caller,$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($r,"\n". + &mt("One or more password fields were blank"). + "\n
",$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.'); + } + my $unable=&mt("Unable to retrieve saved token for password decryption"); + $r->print(<+!"\#$%&\'()*+,-./0123456789:;<=>?\@ +ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~ ++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("