--- loncom/interface/resetpw.pm	2013/08/17 00:34:29	1.36
+++ loncom/interface/resetpw.pm	2016/09/12 16:02:16	1.38
@@ -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 1.36 2013/08/17 00:34:29 raeburn Exp $
+# $Id: resetpw.pm,v 1.38 2016/09/12 16:02:16 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -57,6 +57,7 @@ use Apache::lonnet;
 use Apache::loncommon;
 use Apache::lonlocal;
 use LONCAPA;
+use HTML::Entities;
 
 sub handler {
     my $r = shift;
@@ -87,8 +88,20 @@ sub handler {
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
     
     my @emailtypes = ('permanentemail','critnotification','notification');
-    my $uname = &unescape($env{'form.uname'});
-    my $udom = $env{'form.udom'};
+    my $uname = $env{'form.uname'};
+    $uname =~ s/^\s+|\s+$//g;
+    $uname = &LONCAPA::clean_username($uname);
+    my $udom = &LONCAPA::clean_domain($env{'form.udom'});
+    my ($domdesc,$otherinst);
+    if ($udom) {
+        $domdesc = &Apache::lonnet::domain($udom,'description');
+        if ($domdesc) {
+            my %servers = &Apache::lonnet::internet_dom_servers($udom);
+            unless (exists($servers{$server})) {
+                $otherinst = 1;  
+            }
+        }
+    }
     my $token = $env{'form.token'};
     my $brcrum = [];
     if ($token) {
@@ -106,66 +119,152 @@ sub handler {
         }
     }
     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 $js;
+    unless ($token || $otherinst || ($uname && $udom)) {
+        my (@intdoms,@instdoms);
+        my $internet_names = &Apache::lonnet::get_internet_names($server);
+        if (ref($internet_names) eq 'ARRAY') {
+            @intdoms = @{$internet_names};
+        }
+        if (@intdoms) {
+            my %iphost = &Apache::lonnet::get_iphost();
+            foreach my $ip (keys(%iphost)) {
+                if (ref($iphost{$ip}) eq 'ARRAY') {
+                    foreach my $id (@{$iphost{$ip}}) {
+                        my $location = &Apache::lonnet::internet_dom($id);
+                        if ($location) {
+                            if (grep(/^\Q$location\E$/,@intdoms)) {
+                                my $dom = &Apache::lonnet::host_domain($id);
+                                unless (grep(/^\Q$dom\E/,@instdoms)) {
+                                    push(@instdoms,$dom);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        my $instdomstr;
+        if (@instdoms > 0) {
+            $instdomstr = "'".join("','",@instdoms)."'";
+        }
+        my %js_lt = &Apache::lonlocal::texthash(
+            thdo  => 'The domain you have selected is for another institution.',
+            yowi  => 'You will be switched to the Forgot Password utility at that institution.',
+            unam  => 'You must enter a username.',
+            mail  => 'You must enter an e-mail address.'
+        );
+        &js_escape(\%js_lt);
+        $js = <<"END";
+<script type="text/javascript">
+// <![CDATA[
+function verifyDomain(caller,form) {
+    var redirect = 1; 
+    var instdoms = new Array($instdomstr);
+    if (instdoms.length > 0) {
+        for (var i=0; i<instdoms.length; i++) {
+            if (caller.options[caller.selectedIndex].value == instdoms[i]) {
+                redirect = 0;
+                break;
+            }
+        }
+    }
+    if (redirect == 1) {
+        if (confirm('$js_lt{thdo}\\n$js_lt{yowi}')) {
+            form.submit();
+        }
+    }
+    return;
+}
+
+function validInfo() {
+    if (document.forgotpw.uname.value == '') {
+        alert("$js_lt{'unam'}");
+        return false;
+    }
+    if (document.forgotpw.useremail.value == '') {
+        alert("$js_lt{'mail'}");
+        return false;
+    }
+    return true;
+}
+// ]]>
+</script>
+END
+    }
+    my $header = &Apache::loncommon::start_page('Reset password',$js,$args).
+                 '<h2>'.&mt('Reset forgotten LON-CAPA password').'</h2>';
     my $output;
     if ($token) {
         $output = &reset_passwd($r,$token,$contact_name,$contact_email);
-    } elsif ($uname && $udom) {
-        my $domdesc = &Apache::lonnet::domain($udom,'description');
-        my $authtype = &Apache::lonnet::queryauthenticate($uname,$udom);
-        if ($authtype =~ /^internal/) {
-            my $useremail = $env{'form.useremail'};
-            if ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
-                $output = &invalid_state('baduseremail',$domdesc,
-                                         $contact_name,$contact_email);
-            } else {
-                my %userinfo = 
-		    &Apache::lonnet::get('environment',\@emailtypes,
-					 $udom,$uname);
-                my @allemails;
-                foreach my $type (@emailtypes) {
-                    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);
+    } elsif ($udom) {
+        if (!$domdesc) {
+            $output = &invalid_state('baddomain',$domdesc,
+                                     $contact_name,$contact_email); 
+        } elsif ($otherinst) {
+            ($header,$output) = &homeserver_redirect($uname,$udom,$domdesc,$brcrum);
+        } elsif ($uname) {
+            my $authtype = &Apache::lonnet::queryauthenticate($uname,$udom);
+            if ($authtype =~ /^internal/) {
+                my $useremail = $env{'form.useremail'};
+                my ($blocked,$blocktext) =
+                    &Apache::loncommon::blocking_status('passwd',$uname,$udom);
+                if ($blocked) {
+                    $output = '<p class="LC_warning">'.$blocktext.'</p>'
+                              .&display_actions($contact_email,$domdesc);
+                } elsif ($useremail !~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) {
+                    $output = &invalid_state('baduseremail',$domdesc,
+                                             $contact_name,$contact_email);
+                } else {
+                    my %userinfo = 
+	                &Apache::lonnet::get('environment',\@emailtypes,
+					     $udom,$uname);
+                    my @allemails;
+                    foreach my $type (@emailtypes) {
+                        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 (@allemails > 0) {
-                    if (grep(/^\Q$useremail\E$/,@allemails)) {
-                        $output = &send_token($uname,$udom,$useremail,$server,
-                                              $domdesc,$contact_name,
-                                              $contact_email);
+                    if (@allemails > 0) {
+                        if (grep(/^\Q$useremail\E$/,@allemails)) {
+                            $output = &send_token($uname,$udom,$useremail,$server,
+                                                  $domdesc,$contact_name,
+                                                  $contact_email);
+                        } else {
+                            $output = &invalid_state('mismatch',$domdesc,
+                                                     $contact_name,
+                                                     $contact_email);
+                        }
                     } else {
-                        $output = &invalid_state('mismatch',$domdesc,
-                                                 $contact_name,
-                                                 $contact_email);
+                        $output = &invalid_state('missing',$domdesc,
+                                                 $contact_name,$contact_email);
                     }
-                } else {
-                    $output = &invalid_state('missing',$domdesc,
-                                             $contact_name,$contact_email);
                 }
+            } elsif ($authtype =~ /^(krb|unix|local)/) { 
+                $output = &invalid_state('authentication',$domdesc,
+                                         $contact_name,$contact_email);
+            } else {
+                $output = &invalid_state('invalid',$domdesc,
+                                         $contact_name,$contact_email);
             }
-        } elsif ($authtype =~ /^(krb|unix|local)/) { 
-            $output = &invalid_state('authentication',$domdesc,
-                                     $contact_name,$contact_email);
         } else {
-            $output = &invalid_state('invalid',$domdesc,
-                                     $contact_name,$contact_email);
+            $output = &get_uname($defdom);
         }
     } else {
         $output = &get_uname($defdom);
     }
-    $r->print($output);
+    $r->print($header.$output);
     $r->print(&Apache::loncommon::end_page());
     return OK;
 }
@@ -184,16 +283,23 @@ sub get_uname {
            .'<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 .= '<form name="forgotpw" method="post" action="/adm/resetpw">'.
+    my $mobileargs;
+    (undef,undef,undef,undef,undef,undef,my $clientmobile) =
+        &Apache::loncommon::decode_user_agent();
+    if ($clientmobile) {
+        $mobileargs = 'autocapitalize="off" autocorrect="off" ';
+    }
+    my $onchange = 'javascript:verifyDomain(this,this.form);';
+    $msg .= '<form name="forgotpw" method="post" action="/adm/resetpw" onsubmit="return validInfo();">'.
             &Apache::lonhtmlcommon::start_pick_box(). 
             &Apache::lonhtmlcommon::row_title($lt{'unam'}).
-            '<input type="text" name="uname" size="20" />'.
+            '<input type="text" name="uname" size="20" '.$mobileargs.'/>'.
             &Apache::lonhtmlcommon::row_closure(1).
             &Apache::lonhtmlcommon::row_title($lt{'udom'}).
-            &Apache::loncommon::select_dom_form($defdom,'udom').
+            &Apache::loncommon::select_dom_form($defdom,'udom',undef,undef,$onchange).
             &Apache::lonhtmlcommon::row_closure(1).
             &Apache::lonhtmlcommon::row_title($lt{'uemail'}).
-            '<input type="text" name="useremail" size="30" />'.
+            '<input type="text" name="useremail" size="30" '.$mobileargs.'/>'.
             &Apache::lonhtmlcommon::end_pick_box().
             '<br /><br /><input type="submit" name="resetter" value="'.$lt{'proc'}.'" /></form>';
     return $msg;
@@ -287,6 +393,8 @@ sub invalid_state {
             $msg = &mt('A valid e-mail address was not located in the LON-CAPA system for the username and domain you provided.');
         } elsif ($error eq 'authentication') {
             $msg = &mt('The username you provided uses an authentication type which can not be reset directly via LON-CAPA.');
+        } elsif ($error eq 'baddomain') {
+            $msg = &mt('The domain you provided was not verified as a valid domain in the LON-CAPA system.');
         }
         $msg = '<p class="LC_warning">'.$msg.'</p>'
               .&display_actions($contact_email,$domdesc);
@@ -294,6 +402,25 @@ sub invalid_state {
     return $msg;
 }
 
+sub homeserver_redirect {
+    my ($uname,$udom,$domdesc,$brcrum) = @_;
+    my $uhome = &Apache::lonnet::homeserver();
+    if ($uhome eq 'no_host') {
+        $uhome = &Apache::lonnet::domain($udom,'primary');
+    }
+    my $protocol = $Apache::lonnet::protocol{$uhome};
+    $protocol = 'http' if ($protocol ne 'https');
+    my $url = $protocol.'://'.&Apache::lonnet::hostname($uhome).'/adm/resetpw';
+    # Breadcrumbs
+    my $start_page = &Apache::loncommon::start_page('Switching Server',undef,
+                                                    {'redirect' => [0,$url],
+                                                     'bread_crumbs' => $brcrum,});
+    my $output = '<p>'.&mt('This LON-CAPA server belongs to a different domain.').' '.
+                       &mt('You are being switched to your domain ([_1]), to use the "Forgot Password" tool.',$domdesc).
+                 '</p>';
+    return ($start_page,$output);
+}
+
 sub reset_passwd {
     my ($r,$token,$contact_name,$contact_email) = @_;
     my $msg;
@@ -310,7 +437,12 @@ sub reset_passwd {
         ($data{'email'}  =~ /^[^\@]+\@[^\@]+\.[^\@\.]+$/) && 
         ($data{'temppasswd'} =~/^\w+$/)) {
         my $reqtime = &Apache::lonlocal::locallocaltime($data{'time'});
-        if ($now - $data{'time'} < 7200) {
+        my ($blocked,$blocktext) =
+            &Apache::loncommon::blocking_status('passwd',$data{'username'},$data{'domain'});
+        if ($blocked) {
+            $msg = '<p class="LC_warning">'.$blocktext.'</p>';
+            return $msg;
+        } elsif ($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);