--- loncom/interface/resetpw.pm	2009/09/14 14:48:20	1.11.2.1
+++ loncom/interface/resetpw.pm	2013/08/14 16:47:37	1.35
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Allow access to password changing via a token sent to user's e-mail. 
 #
-# $Id: resetpw.pm,v 1.11.2.1 2009/09/14 14:48:20 raeburn Exp $
+# $Id: resetpw.pm,v 1.35 2013/08/14 16:47:37 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,6 +26,28 @@
 # http://www.lon-capa.org/
 #
 #
+
+=pod
+
+=head1 NAME
+
+Apache::resetpw: reset user password.
+
+=head1 SYNOPSIS
+
+Handles resetting of forgotten passwords.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+ 
+=head1 OVERVIEW
+
+A user with an e-mail address associated with his/her LON-CAPA username
+can reset a forgotten password, using a link sent to the e-mail address
+if the authentication type for the account is "internal".
+
+=cut
+
 package Apache::resetpw;
 
 use strict;
@@ -44,9 +66,22 @@ sub handler {
         return OK;
     }
     my $contact_name = &mt('LON-CAPA helpdesk');
-    my $contact_email =  $r->dir_config('lonSupportEMail');
+    my $origmail =  $r->dir_config('lonSupportEMail');
     my $server = $r->dir_config('lonHostID');
-    my $defdom = $r->dir_config('lonDefDomain');
+    my $defdom = &Apache::lonnet::default_login_domain();
+    my $contacts =
+        &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
+                                                 $defdom,$origmail);
+    my ($contact_email) = split(',',$contacts);
+    my $handle = &Apache::lonnet::check_for_valid_session($r);
+    my $lonidsdir=$r->dir_config('lonIDsDir');
+    if ($handle ne '') {
+        if ($handle=~/^publicuser\_/) {
+            unlink($r->dir_config('lonIDsDir')."/$handle.id");
+        } else {
+            &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
+        }
+    }
     &Apache::lonacc::get_posted_cgi($r);
     &Apache::lonlocal::get_language_handle($r);
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
@@ -55,12 +90,24 @@ sub handler {
     my $uname = &unescape($env{'form.uname'});
     my $udom = $env{'form.udom'};
     my $token = $env{'form.token'};
-    my $start_page =
-        &Apache::loncommon::start_page('Reset password','',
-                                           {
-                                             'no_inline_link'   => 1,});
-    $r->print($start_page);
-    $r->print('<h3>'.&mt('Reset forgotten LON-CAPA password').'</h3>');
+    my $brcrum = [];
+    if ($token) {
+        push (@{$brcrum},
+            {href => '/adm/resetpw',
+             text => 'Update Password'});
+    } else {
+        push (@{$brcrum},
+            {href => '/adm/resetpw',
+             text => 'Account Information'});
+        if ($uname && $udom) {
+            push (@{$brcrum},
+                {href => '/adm/resetpw',
+                 text => 'Result'});
+        }
+    }
+    my $args = {bread_crumbs => $brcrum};
+    $r->print(&Apache::loncommon::start_page('Reset password','',$args));
+    $r->print('<h2>'.&mt('Reset forgotten LON-CAPA password').'</h2>');
     my $output;
     if ($token) {
         $output = &reset_passwd($r,$token,$contact_name,$contact_email);
@@ -76,18 +123,26 @@ sub handler {
                 my %userinfo = 
 		    &Apache::lonnet::get('environment',\@emailtypes,
 					 $udom,$uname);
-                my $email = '';
-                my $emailtarget;
+                my @allemails;
                 foreach my $type (@emailtypes) {
-                    $email = $userinfo{$type};
-                    if ($email =~ /[^\@]+\@[^\@]+/) {
-                        $emailtarget = $type; 
-                        last;
+                    my $email = $userinfo{$type};
+                    my @items;
+                    if ($email =~ /,/) {
+                        @items = split(',',$userinfo{$type});
+                    } else {
+                        @items = ($email);
+                    }
+                    foreach my $item (@items) {
+                        if ($item =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
+                            unless(grep(/^\Q$item\E$/,@allemails)) { 
+                                push(@allemails,$item);
+                            }
+                        }
                     }
                 }
-                if ($email =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
-                    if ($useremail eq $email) {
-                        $output = &send_token($uname,$udom,$email,$server,
+                if (@allemails > 0) {
+                    if (grep(/^\Q$useremail\E$/,@allemails)) {
+                        $output = &send_token($uname,$udom,$useremail,$server,
                                               $domdesc,$contact_name,
                                               $contact_email);
                     } else {
@@ -118,41 +173,39 @@ sub handler {
 sub get_uname {
     my ($defdom) = @_;
     my %lt = &Apache::lonlocal::texthash(
-                                         unam => 'username',
-                                         udom => 'domain',
+                                         unam => 'LON-CAPA username',
+                                         udom => 'LON-CAPA domain',
                                          uemail => 'E-mail address in LON-CAPA',
                                          proc => 'Proceed');
 
-    my $msg = &mt('If you use the same account for other campus services besides LON-CAPA, (e.g., e-mail, course registration, etc.), a separate centrally managed mechanism likely exists to reset a password.  However, if your account is used for just LON-CAPA access you will probably be able to reset a password from this page.');
-    $msg .= &mt('Three conditions must be met:')
-           .'<ul><li>'.&mt('An e-mail address must have previously been associated with your GCI WebCenter username.').'</li>'
+    my $msg = &mt('If you use the same account for other campus services besides LON-CAPA, (e.g., e-mail, course registration, etc.), a separate centrally managed mechanism likely exists to reset a password. However, if your account is used for just LON-CAPA access you will probably be able to reset a password from this page.');
+    $msg .= '<br /><br />'.&mt('Three conditions must be met:')
+           .'<ul><li>'.&mt('An e-mail address must have previously been associated with your LON-CAPA username.').'</li>'
            .'<li>'.&mt('You must be able to access e-mail sent to that address.').'</li>'
            .'<li>'.&mt('Your LON-CAPA account must be of a type for which LON-CAPA can reset a password.')
            .'</ul>';
-    $msg .= qq|
-<form name="forgotpw" method="post">
-<table>
-<tr><td>
-<tr><td align="left">GCI WebCenter $lt{'unam'}:                      </td>
-    <td><input type="text" name="uname" size="15"  /> </td></tr>
-<tr><td align="left">GCI WebCenter $lt{'udom'}:                      </td>
-    <td>|;
-    $msg .= &Apache::loncommon::select_dom_form($defdom,'udom');
-    $msg .= qq|</td></tr>
-<tr><td align="left">$lt{'uemail'}:                             </td>
-    <td><input type="text" name="useremail" size="30"  /></td></tr>
-<tr><td colspan="2" align="left"><br />
-    <input type="button" value="$lt{'proc'}" onClick="document.forgotpw.submit()"></td></tr>
-</table>
-</form>
-|;
+    $msg .= '<form name="forgotpw" method="post" action="/adm/resetpw">'.
+            &Apache::lonhtmlcommon::start_pick_box(). 
+            &Apache::lonhtmlcommon::row_title($lt{'unam'}).
+            '<input type="text" name="uname" size="20" />'.
+            &Apache::lonhtmlcommon::row_closure(1).
+            &Apache::lonhtmlcommon::row_title($lt{'udom'}).
+            &Apache::loncommon::select_dom_form($defdom,'udom').
+            &Apache::lonhtmlcommon::row_closure(1).
+            &Apache::lonhtmlcommon::row_title($lt{'uemail'}).
+            '<input type="text" name="useremail" size="30" />'.
+            &Apache::lonhtmlcommon::end_pick_box().
+            '<br /><br /><input type="submit" name="resetter" value="'.$lt{'proc'}.'" /></form>';
     return $msg;
 }
 
 sub send_token {
     my ($uname,$udom,$email,$server,$domdesc,$contact_name,
         $contact_email) = @_;
-    my $msg = &mt('Thank you for your request to reset the password for your LON-CAPA account.').'<br /><br />';
+    my $msg =
+        '<p class="LC_info">'
+       .&mt('Thank you for your request to reset the password for your LON-CAPA account.')
+       .'</p>';
 
     my $now = time;
     my $temppasswd = &create_passwd();
@@ -168,16 +221,29 @@ sub send_token {
         my $esc_token = &escape($token);
         my $showtime = &Apache::lonlocal::locallocaltime(time);
         my $reseturl = &Apache::lonnet::absolute_url().'/adm/resetpw?token='.$esc_token;
-        my $mailmsg = &mt('A request was submitted on [_1] for a reset of the password for your LON-CAPA account.',$showtime).' '.&mt('To complete this process please open a web browser and enter the following URL in the address/location box: [_1]',$reseturl);
+        my $mailmsg = &mt('A request was submitted on [_1] for reset of the password for your LON-CAPA account.',$showtime)." \n".&mt('To complete this process please open a web browser and enter the following URL in the address/location box: [_1]',"\n\n".$reseturl);
         my $result = &send_mail($domdesc,$email,$mailmsg,$contact_name,
                                 $contact_email);
         if ($result eq 'ok') {
-            $msg .= &mt("An e-mail message sent to the e-mail address associated with your LON-CAPA account includes the web address for the link you should use to complete the reset process.<br /><br />The link included in the message will be valid for the next <b>two</b> hours.");
+            $msg .=
+                &mt('An e-mail sent to the e-mail address associated with your LON-CAPA account includes the web address for the link you should use to complete the reset process.')
+               .'<br /><br />'
+               .&mt('The link included in the message will be valid for the next [_1]two[_2] hours.','<b>','</b>');
         } else {
-            $msg .= &mt("An error occurred when sending a message to the e-mail address associated with your LON-CAPA account. Please contact the [_1] ([_2]) for assistance.",$contact_name,$contact_email);
+            $msg .=
+                '<p class="LC_error">'
+               .&mt('An error occurred when sending a message to the e-mail address'
+                   .' associated with your LON-CAPA account.')
+               .'</p>'
+               .&display_actions($contact_email,$domdesc);
         }
     } else {
-        $msg .= &mt("An error occurred creating a token required for the password reset process. Please contact the [_1] ([_2]) for assistance.",$contact_name,$contact_email);
+        $msg .=
+            '<p class="LC_error">'
+           .&mt('An error occurred creating a token required for the'
+               .' password reset process.')
+           .'</p>'
+           .&display_actions($contact_email,$domdesc);
     }
     return $msg;
 }
@@ -188,6 +254,7 @@ sub send_mail {
     my $requestmail = "To: $email\n".
                       "From: $contact_name <$contact_email>\n".
                       "Subject: ".&mt('Your LON-CAPA account')."\n".
+                      "Content-type: text/plain\;charset=UTF-8\n".
                       "\n\n".$mailmsg."\n\n".
                       &mt('[_1] LON-CAPA support team',$domdesc)."\n".
                       "$contact_email\n";
@@ -205,8 +272,12 @@ sub invalid_state {
     my ($error,$domdesc,$contact_name,$contact_email) = @_;
     my $msg;
     if ($error eq 'invalid') {
-        $msg = &mt('The username you provided was not verified as a valid username in the LON-CAPA system for the [_1] domain.',$domdesc)
-              .' '.&mt('Please [_1]go back[_2] and try again.','<a href="javascript:history.go(-1)"><u>','</u></a>');
+        $msg =
+            '<p class="LC_warning">'
+            .&mt('The username you provided was not verified as a valid username'
+                .' in the LON-CAPA system for the [_1] domain.','<i>'.$domdesc.'</i>')
+              .'</p>';
+        $msg .= &display_actions($contact_email,$domdesc);
     } else {
         if ($error eq 'baduseremail') {
             $msg = &mt('The e-mail address you provided does not appear to be a valid address.');
@@ -217,13 +288,8 @@ sub invalid_state {
         } elsif ($error eq 'authentication') {
             $msg = &mt('The username you provided uses an authentication type which can not be reset directly via LON-CAPA.');
         }
-        if ($contact_email ne '') {
-            my $escuri = &HTML::Entities::encode('/adm/resetpw','&<>"');
-            $msg .= '<br /> '.&mt('You may wish to contact the [_1]LON-CAPA helpdesk[_2] for the [_3] domain.'
-                                 ,'<a href="/adm/helpdesk?origurl='.$escuri.'">','</a>',$domdesc);
-        } else {
-            $msg .= '<br /> '.&mt('You may wish to send an e-mail to the server administrator: [_1] for the [_2] domain.',$Apache::lonnet::perlvar{'AdminEmail'},$domdesc);
-        }
+        $msg = '<p class="LC_warning">'.$msg.'</p>'
+              .&display_actions($contact_email,$domdesc);
     }
     return $msg;
 }
@@ -234,7 +300,8 @@ sub reset_passwd {
     my %data = &Apache::lonnet::tmpget($token);
     my $now = time;
     if (keys(%data) == 0) {
-        $msg = &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.');
+        $msg = &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 [_1]new request[_2] 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.'
+                  ,'<a href="/adm/resetpw">','</a>');
         return $msg;
     }
     if (($data{'time'} =~ /^\d+$/) && 
@@ -245,6 +312,10 @@ sub reset_passwd {
         my $reqtime = &Apache::lonlocal::locallocaltime($data{'time'});
         if ($now - $data{'time'} < 7200) {
             if ($env{'form.action'} eq 'verify_and_change_pass') {
+                unless (($env{'form.uname'} eq $data{'username'}) && ($env{'form.udom'} eq $data{'domain'}) && ($env{'form.email'} eq $data{'email'})) {
+                    $msg = &generic_failure_msg($contact_name,$contact_email);
+                    return $msg;
+                }
                 my $change_failed = 
 		    &Apache::lonpreferences::verify_and_change_password($r,'reset_by_email',$token);
                 if (!$change_failed) {
@@ -255,29 +326,82 @@ sub reset_passwd {
                     my $mailmsg = &mt('The password for your LON-CAPA account in the [_1] domain was changed [_2] from IP address: [_3].  If you did not perform this change or authorize it, please contact the [_4] ([_5]).',$domdesc,$now,$ENV{'REMOTE_ADDR'},$contact_name,$contact_email)."\n";
                     my $result = &send_mail($domdesc,$data{'email'},$mailmsg,
                                             $contact_name,$contact_email);
+                    my $confirm_msg;
                     if ($result eq 'ok') {
-                        $msg .= &mt('An e-mail confirming setting of the password for your LON-CAPA account has been sent to [_1].',$data{'email'});
+                        $confirm_msg =
+                            &Apache::lonhtmlcommon::confirm_success(
+                                &mt('An e-mail confirming setting of the password'
+                                   .' for your LON-CAPA account has been sent to [_1].'
+                                    ,'<span class="LC_filename">'.$data{'email'}.'</span>'));
+                    } else {
+                        $confirm_msg =
+                            &Apache::lonhtmlcommon::confirm_success(
+                                &mt('An error occurred when sending e-mail to [_1]'
+                                   .' confirming setting of your new password.'
+                                    ,'<span class="LC_filename">'.$data{'email'}.'</span>'),1);
+                    }
+                    $msg .=
+                        &Apache::loncommon::confirmwrapper($confirm_msg)
+                       .&Apache::lonhtmlcommon::actionbox([
+                            '<a href="/adm/login">'.&mt('Go to the login page').'</a>']);
+                } elsif ($change_failed eq 'invalid_client') {
+                    my $homeserver = &Apache::lonnet::homeserver($data{'username'},$data{'domain'});
+                    if ($homeserver eq 'no_host') {
+                        $msg .= &generic_failure_msg($contact_name,$contact_email);
                     } else {
-                        $msg .= &mt('An error occurred when sending e-mail to [_1] confirming setting of your new password.',$data{'email'});
+                        my $protocol = $Apache::lonnet::protocol{$homeserver};
+                        $protocol = 'http' if ($protocol ne 'https');
+                        my $url = $protocol.'://'.&Apache::lonnet::hostname($homeserver).
+                                  '/adm/resetpw';
+                        my ($opentag,$closetag);
+                        if ($url) {
+                           $opentag = '<a href="'.$url.'">';
+                           $closetag = '</a>';
+                        }
+                        $msg .=
+                            '<p class="LC_warning">'
+                           .&mt('A problem occurred when attempting to reset'
+                               .' the password for your account.'
+                               .' Please try again from your [_1]home server[_2].'
+                                ,$opentag,$closetag)
+                           .'</p>';
                     }
-                    $msg .= '<br /><br />'.&mt('<a href="/adm/login">Go to the login page</a>.');
                 } else {
-                    $msg .= &mt('A problem occurred when attempting to reset the password for your account.  Please contact the [_1] - (<a href="mailto:[_2]">[_2]</a>) for assistance.',$contact_name,$contact_email);
+                    $msg .= &generic_failure_msg($contact_name,$contact_email);
                 }
             } else {
-                $r->print(&mt('The token included in an email sent to you [_1] has been verified, so you may now proceed to reset the password for your LON-CAPA account.',$reqtime).'<br /><br />');
+                $r->print(&mt('The token included in an e-mail sent to you [_1] has been verified, so you may now proceed to reset the password for your LON-CAPA account.',$reqtime).'<br /><br />');
                 $r->print(&mt('Please enter the username and domain of the LON-CAPA account, and the associated e-mail address, for which you are setting a password. The new password must contain at least 7 characters.').' '.&mt('Your new password will be sent to the LON-CAPA server in an encrypted form.').'<br />');
                 &Apache::lonpreferences::passwordchanger($r,'','reset_by_email',$token);
             }
         } else {
-            $msg = &mt('Sorry, the token generated when you requested a password reset has expired. Please submit a <a href="/adm/resetpw">new request</a>, and follow the link to the web page included in the new e-mail that will be sent to you, to allow you to enter a new password.');
+            $msg =
+                '<p class="LC_warning">'
+               .&mt('Sorry, the token generated when you requested a password reset has expired. Please submit a [_1]new request[_2], and follow the link to the web page included in the new e-mail that will be sent to you, to allow you to enter a new password.'
+                    ,'<a href="/adm/resetpw">','</a>')
+               .'</p>';
         }
     } else {
-        $msg .= &mt('Sorry, the URL generated when you requested reset of your password contained incomplete information. Please submit a <a href="/adm/resetpw">new request</a> for a password reset, and use the new URL that will be sent to your e-mail account to complete the process.');
+        $msg .=
+            '<p class="LC_warning">'
+           .&mt('Sorry, the URL generated when you requested reset of your password contained incomplete information. Please submit a [_1]new request[_2] for a password reset, and use the new URL that will be sent to your e-mail account to complete the process.'
+                ,'<a href="/adm/resetpw">','</a>')
+           .'</p>';
     }
     return $msg;
 }
 
+sub generic_failure_msg {
+    my ($contact_name,$contact_email) = @_;
+    return
+        '<p class="LC_error">'
+       .&mt('A problem occurred when attempting to reset the password for your account.')
+       .'<br />'
+       .&mt('Please contact the [_1] - ([_2]) for assistance.',
+              $contact_name,'<a href="mailto:'.$contact_email.'">'.$contact_email.'</a>')
+       .'</p>';
+}
+
 sub create_passwd {
     my $passwd = '';
     my @letts = ("a".."z");
@@ -298,4 +422,28 @@ sub create_passwd {
     return ($passwd);
 }
 
+sub display_actions {
+    my ($contact_email, $domdesc) = @_;
+    my @msg = (&mt('[_1]Go back[_2] and try again',
+                   '<a href="javascript:history.go(-1)">','</a>'));
+    my $msg2 = '';
+    if ($contact_email ne '') {
+        my $escuri = &HTML::Entities::encode('/adm/resetpw','&<>"');
+        push(@msg, &mt('Contact the [_1]LON-CAPA helpdesk[_2] for the institution: [_3]',
+                       '<a href="/adm/helpdesk?origurl='.$escuri.'">',
+                       '</a>','<i>'.$domdesc.'</i>'));
+    } else {
+        $msg2 =
+            '<p>'
+           .&mt('You may wish to send an e-mail to the'
+           .' server administrator: [_1] for the [_2] domain.',
+                '<i>'.$Apache::lonnet::perlvar{'AdmEMail'}.'</i>',
+                '<i>'.$domdesc.'</i>')
+           .'</p>';
+    }
+
+    return &Apache::lonhtmlcommon::actionbox(\@msg).$msg2;
+
+}
+
 1;