+sub reply_with_json_error {
+ my ($self, %params) = @_;
+
+ my %errors = (
+ session => { code => '401 Unauthorized', text => 'session expired' },
+ password => { code => '401 Unauthorized', text => 'incorrect username or password' },
+ action => { code => '400 Bad request', text => 'incorrect or missing action' },
+ access => { code => '403 Forbidden', text => 'no permissions for accessing this function' },
+ _default => { code => '500 Internal server error', text => 'general server-side error' },
+ );
+
+ my $error = $errors{$params{error}} // $errors{_default};
+ my $reply = SL::JSON::to_json({ status => 'failed', error => $error->{text} });
+
+ print $::request->cgi->header(
+ -type => 'application/json',
+ -charset => 'utf-8',
+ -status => $error->{code},
+ );
+
+ print $reply;
+
+ $self->end_request;
+}
+
+sub handle_login_error {
+ my ($self, %params) = @_;
+
+ return $self->reply_with_json_error(error => $params{error}) if $::request->type eq 'json';
+
+ my $action = ($params{script} // '') =~ m/^admin/i ? 'Admin/login' : 'LoginScreen/user_login';
+ $action .= '&error=' . $params{error} if $params{error};
+
+ my $redirect_url = "controller.pl?action=${action}";
+
+ if ( $action =~ m/LoginScreen\/user_login/
+ && $params{action}
+ && 'get' eq lc($ENV{REQUEST_METHOD})
+ && !_is_callback_blacklisted(map {$_ => $params{$_}} qw(routing_type script controller action) )
+ ) {
+
+ require SL::Controller::Base;
+ my $controller = SL::Controller::Base->new;
+
+ delete $params{error};
+ delete $params{routing_type};
+ delete @{ $::form }{ grep { m/^\{AUTH\}/ } keys %{ $::form } };
+
+ my $callback = $controller->url_for(%params, %{$::form});
+ $redirect_url .= '&callback=' . uri_encode($callback);
+ }
+
+ print $::request->cgi->redirect($redirect_url);
+ $self->end_request;
+}
+
+sub _is_callback_blacklisted {
+ my (%params) = @_;
+
+ # You can give a name only, then all actions are blackisted.
+ # Or you can give name and action, then only this action is blacklisted
+ # examples:
+ # {name => 'is', action => 'edit'}
+ # {name => 'Project', action => 'edit'},
+ my @script_blacklist = (
+ {name => 'admin'},
+ {name => 'login'},
+ );
+
+ my @controller_blacklist = (
+ {name => 'Admin'},
+ {name => 'LoginScreen'},
+ );
+
+ my ($name, $blacklist);
+ if ('old' eq ($params{routing_type} // '')) {
+ $name = $params{script};
+ $blacklist = \@script_blacklist;
+ } else {
+ $name = $params{controller};
+ $blacklist = \@controller_blacklist;
+ }
+
+ foreach my $bl (@$blacklist) {
+ return 1 if _is_name_action_blacklisted($bl->{name}, $bl->{action}, $name, $params{action});
+ }
+
+ return;
+}
+
+sub _is_name_action_blacklisted {
+ my ($blacklisted_name, $blacklisted_action, $name, $action) = @_;
+
+ return 1 if ($name // '') eq $blacklisted_name && !$blacklisted_action;
+ return 1 if ($name // '') eq $blacklisted_name && ($action // '') eq $blacklisted_action;
+ return;
+}
+