allow to link another eAC instance for a given federation

lib/AccountManager/App.pm

@@ -260,53 +260,60 @@ sub req_select_sp {
     my %groups;
     my @self_entities;
     foreach my $federation (@federations) {
-        my $file = $self->get_metadata_file(federation => $federation);
-
-        my $metadata;
-        eval {
-            $metadata = AccountManager::Metadata->new(
-                file => $file
-            );
-        };
-        $self->abort(
-            log  => "Failed to load federation metadata: $EVAL_ERROR",
-            user => "internal"
-        ) if $EVAL_ERROR;
-
-        my $entities = $metadata->parse(type => 'sp');
-        $groups{$federation} = {
-            label    => $self->{configuration}->{$federation}->{label},
-            entities => [
-                map { {
-                    id         => $_->{entityid},
-                    name       => $_->{display_name},
-                    federation => $federation
-                 } } @$entities
-            ]
-        };
+        if ($self->{configuration}->{$federation}->{metadata}) {
+            my $file = $self->get_metadata_file(federation => $federation);
 
-        # if user is authenticated, and its IdP is found in metadata,
-        # push all entities with the same organization URL in a list
-        if ($ENV{HTTP_SHIB_IDENTITY_PROVIDER}) {
-            my $idps = $metadata->parse(id => $ENV{HTTP_SHIB_IDENTITY_PROVIDER});
-            my $idp  = $idps->[0];
-            if ($idp) {
-                my $organization = $idp->{organization};
-                $self->{logger}->debugf(
-                    "idp %s found in federation %s metadata with organization %s",
-                    $ENV{HTTP_SHIB_IDENTITY_PROVIDER},
-                    $federation,
-                    $organization
+            my $metadata;
+            eval {
+                $metadata = AccountManager::Metadata->new(
+                    file => $file
                 );
-                push @self_entities,
+            };
+            $self->abort(
+                log  => "Failed to load federation metadata: $EVAL_ERROR",
+                user => "internal"
+            ) if $EVAL_ERROR;
+
+            my $entities = $metadata->parse(type => 'sp');
+            $groups{$federation} = {
+                label    => $self->{configuration}->{$federation}->{label},
+                entities => [
                     map { {
                         id         => $_->{entityid},
                         name       => $_->{display_name},
                         federation => $federation
-                    } }
-                    grep { $_->{organization} eq $organization }
-                    @$entities;
+                     } } @$entities
+                ]
+            };
+
+            # if user is authenticated, and its IdP is found in metadata,
+            # push all entities with the same organization URL in a list
+            if ($ENV{HTTP_SHIB_IDENTITY_PROVIDER}) {
+                my $idps = $metadata->parse(id => $ENV{HTTP_SHIB_IDENTITY_PROVIDER});
+                my $idp  = $idps->[0];
+                if ($idp) {
+                    my $organization = $idp->{organization};
+                    $self->{logger}->debugf(
+                        "idp %s found in federation %s metadata with organization %s",
+                        $ENV{HTTP_SHIB_IDENTITY_PROVIDER},
+                        $federation,
+                        $organization
+                    );
+                    push @self_entities,
+                        map { {
+                            id         => $_->{entityid},
+                            name       => $_->{display_name},
+                            federation => $federation
+                        } }
+                        grep { $_->{organization} eq $organization }
+                        @$entities;
+                }
             }
+        } elsif ($self->{configuration}->{$federation}->{link}) {
+            $groups{$federation} = {
+                label => $self->{configuration}->{$federation}->{label},
+                link  => $self->{configuration}->{$federation}->{link},
+            };
         }
     }
 

templates/web/renater/select_sp.tt2.html

@@ -17,13 +17,18 @@
 
         [% FOREACH group IN groups.keys.sort() %]
         <fieldset>
+            [% IF groups.$group.entities %] 
             <legend>[% groups.$group.label %]</legend>
             <select id="[% group %]" name="[% group %]">
                 <option value=""></option>
-            [% FOREACH entity IN groups.$group.entities.sort('name') %]
+                [% FOREACH entity IN groups.$group.entities.sort('name') %]
                 <option value="[% entity.id %]" data-federation="[% entity.federation %]">[% entity.name %]</option>
-            [% END %]
+                [% END %]
             </select>
+            [% END %]
+            [% IF groups.$group.link %]
+            <a class="button" href="[% groups.$group.link %]">[% groups.$group.label %]</a>
+            [% END %]
         </fieldset>
         [% END %]
         <input type="hidden" id="federation" name="federation"/>