function elgg_modifications_create_user_event_handler($event, $object_type, $object)
{
    if (elgg_instanceof($object, "user")) {
        if (subsite_manager_on_subsite()) {
            $object->setPrivateSetting("digest_" . elgg_get_site_entity()->getOwnerGUID(), "none");
        }
    }
}

function subsite_manager_fix_piwik_settings()
{
    global $SUBSITE_MANAGER_IGNORE_WRITE_ACCESS;
    if (subsite_manager_on_subsite()) {
        $site = elgg_get_site_entity();
        if ($piwik_settings = $site->phloor_analytics_piwik_settings) {
            $SUBSITE_MANAGER_IGNORE_WRITE_ACCESS = true;
            if ($site->canEdit()) {
                // log to the error log that we did something
                error_log("PIWIK saving settings for " . $site->name . " (" . $site->getGUID() . ")");
                error_log("PIWIK settings: " . $piwik_settings);
                if ($piwik_settings = json_decode($piwik_settings, true)) {
                    if (!empty($piwik_settings) && is_array($piwik_settings)) {
                        $enabled = elgg_extract("enable_tracking", $piwik_settings);
                        $piwik_url = elgg_extract("path_to_piwik", $piwik_settings);
                        $piwik_site_id = elgg_extract("site_guid", $piwik_settings);
                        if ($enabled == "true") {
                            if (!empty($piwik_url) && !empty($piwik_site_id)) {
                                // check if analytics is enabled
                                if (!elgg_is_active_plugin("analytics")) {
                                    // not active so enable
                                    if ($plugin = elgg_get_plugin_from_id("analytics")) {
                                        $plugin->activate();
                                        elgg_invalidate_simplecache();
                                        elgg_reset_system_cache();
                                    }
                                }
                                // save settings, if not exists
                                if (!elgg_get_plugin_setting("piwik_url", "analytics") && !elgg_get_plugin_setting("piwik_site_id", "analytics")) {
                                    elgg_set_plugin_setting("piwik_url", $piwik_url, "analytics");
                                    elgg_set_plugin_setting("piwik_site_id", $piwik_site_id, "analytics");
                                }
                            }
                        }
                    }
                }
                // remove the settings so we don't do this again
                unset($site->phloor_analytics_piwik_settings);
            }
            // unset write access
            $SUBSITE_MANAGER_IGNORE_WRITE_ACCESS = false;
        }
    }
}

function subsite_manager_boot_system_plugins_event_handler($event, $type, $object)
{
    global $CONFIG;
    global $SUBSITE_MANAGER_PLUGINS_BOOT;
    // needs to be set for links in html head
    $viewtype = get_input('view', 'default');
    $site_guid = elgg_get_site_entity()->getGUID();
    $lastcached = datalist_get("sc_lastcached_" . $viewtype . "_" . $site_guid);
    $CONFIG->lastcache = $lastcached;
    // skip non-subsites
    if (!subsite_manager_on_subsite()) {
        return true;
    }
    $site = elgg_get_site_entity();
    $to_activate = $site->getPrivateSetting('subsite_manager_plugins_activate');
    if ($to_activate) {
        $SUBSITE_MANAGER_PLUGINS_BOOT = true;
        $site->removePrivateSetting('subsite_manager_plugins_activate');
        $to_activate = unserialize($to_activate);
        set_time_limit(0);
        elgg_generate_plugin_entities();
        $old_ia = elgg_set_ignore_access(true);
        $plugins = elgg_get_plugins('any');
        foreach ($plugins as $plugin) {
            if (in_array($plugin->getID(), $to_activate)) {
                try {
                    $plugin->activate();
                } catch (Exception $e) {
                }
            }
        }
        elgg_set_ignore_access($old_ia);
        $SUBSITE_MANAGER_PLUGINS_BOOT = false;
        elgg_register_event_handler("ready", "system", "subsite_manager_ready_system_handler", 100);
    }
}

function subsite_manager_pagesetup()
{
    // validate the page_owner
    $page_owner = elgg_get_page_owner_entity();
    if (!empty($page_owner) && elgg_instanceof($page_owner, "group")) {
        $site = elgg_get_site_entity();
        if ($page_owner->site_guid != $site->getGUID()) {
            // you're viewing a group of a different (sub)site
            system_message(elgg_echo("changebookmark"));
            forward($page_owner->getURL());
        }
    }
    // Display a message for non-subsite users
    subsite_manager_check_subsite_user();
    $context = elgg_get_context();
    // handle menu items
    if (elgg_is_admin_logged_in()) {
        // add to admin menu
        if (subsite_manager_is_superadmin_logged_in()) {
            //only for super admins
            elgg_register_admin_menu_item("administer", "import", "users", 150);
            elgg_register_admin_menu_item("administer", "bulk_remove", "users", 160);
        }
        // list subsite administrators
        elgg_register_admin_menu_item("administer", "admins", "users", 110);
        elgg_register_admin_menu_item("administer", "move_group", "administer_utilities");
        if (!subsite_manager_on_subsite()) {
            elgg_register_admin_menu_item("administer", "new", "subsites", 20);
            elgg_register_admin_menu_item("administer", "plugins", "subsites", 30);
            elgg_register_admin_menu_item("administer", "admins", "subsites", 40);
            elgg_register_menu_item("page", array("name" => "subsites", "href" => "subsites", "text" => elgg_echo("subsite_manager:menu:admin:manage"), "context" => "admin", "section" => "administer", "parent_name" => "subsites", "priority" => 10, "target" => "_blank"));
        } else {
            // remove add user menu item
            if (!subsite_manager_is_superadmin_logged_in()) {
                elgg_unregister_menu_item("page", "users:add");
            }
            // list membership requests
            elgg_register_admin_menu_item("administer", "membership", "users", 120);
            // invite members
            elgg_register_admin_menu_item("administer", "invite", "users", 130);
            // view invitations
            elgg_register_admin_menu_item("administer", "invitations", "users", 140);
        }
    }
    if (elgg_is_logged_in() && !subsite_manager_on_subsite()) {
        // site menu
        elgg_register_menu_item("site", array("name" => "subsites", "href" => "subsites", "text" => elgg_echo("subsite_manager:menu:subsites")));
    }
    // disable search engine indexing
    elgg_extend_view("page/elements/head", "metatags/noindex");
    elgg_extend_view("page/elements/head", "subsite_manager/remove_rss", 499);
    elgg_unextend_view("page/elements/head", "profile/metatags");
    if (in_array($context, array("profile", "friends", "friendsof"))) {
        elgg_unregister_plugin_hook_handler("output:before", "layout", "elgg_views_add_rss_link");
    }
    // do we need to disable htmlawed for admins
    if (elgg_get_config("disable_htmlawed")) {
        if (elgg_is_admin_logged_in() || elgg_in_context("static")) {
            elgg_unregister_plugin_hook_handler("validate", "input", "htmlawed_filter_tags");
        }
    }
}

function subsite_manager_simplesaml_check_auto_create_account($source, $auth_attributes)
{
    $result = false;
    if (!empty($source) && !empty($auth_attributes) && is_array($auth_attributes)) {
        // is the source enabled
        if (!subsite_manager_on_subsite() || simplesaml_is_enabled_source($source)) {
            // check if auto create is enabled for this source
            if (!subsite_manager_on_subsite() || elgg_get_plugin_setting($source . "_auto_create_accounts", "simplesaml")) {
                // do we have all the require information
                $email = elgg_extract("elgg:email", $auth_attributes);
                $firstname = elgg_extract("elgg:firstname", $auth_attributes);
                $lastname = elgg_extract("elgg:lastname", $auth_attributes);
                $external_id = elgg_extract("elgg:external_id", $auth_attributes);
                if (!empty($email) && (!empty($firstname) || !empty($lastname)) && !empty($external_id)) {
                    $result = true;
                } else {
                    error_log("SAML: fail 5");
                }
            } else {
                error_log("SAML: fail 4");
            }
        } else {
            error_log("SAML: fail 3");
        }
    } else {
        error_log("SAML: fail 2");
    }
    return $result;
}

 *
 * Shows a list of plugins that can be sorted and filtered.
 *
 * @package Elgg.Core
 * @subpackage Admin.Plugins
 */
$plugin_list = elgg_extract("installed_plugins", $vars);
// Get a list of the all categories
// and trim down the plugin list if we're not viewing all categories.
// @todo this could be cached somewhere after have the manifest loaded
// foreach ($installed_plugins as $id => $plugin) {
// 	if (!$plugin->isValid()) {
// 		if ($plugin->isActive()) {
// 			// force disable and warn
// 			elgg_add_admin_notice('invalid_and_deactivated_' . $plugin->getID(),
// 					elgg_echo('ElggPlugin:InvalidAndDeactivated', array($plugin->getId())));
// 			$plugin->deactivate();
// 		}
// 		continue;
// 	}
// }
// construct page header
$url = elgg_view("output/url", array("href" => "admin/plugins", "text" => elgg_echo("subsite_manager:plugins:advanced:switch")));
echo elgg_view_module("info", "", elgg_echo("subsite_manager:plugins:description") . "<br />" . $url);
?>
<div id="elgg-plugin-list">
	<?php 
$options = array('limit' => 0, 'full_view' => true, 'list_type_toggle' => false, 'pagination' => false, 'display_reordering' => !subsite_manager_on_subsite());
echo elgg_view_entity_list($plugin_list, $options);
?>
</div>

        $body = elgg_list_entities_from_relationship($options);
        break;
}
// search box
if ($search_box) {
    $search = elgg_view("subsite_manager/subsites/forms/search", array("filter" => $filter, "text" => $text, "category" => $category));
}
// tabbed nav
elgg_register_menu_item("filter", $filter_all);
elgg_register_menu_item("filter", $filter_featured);
elgg_register_menu_item("filter", $filter_closed);
elgg_register_menu_item("filter", $filter_open);
elgg_register_menu_item("filter", $filter_mine);
elgg_register_menu_item("filter", $filter_popular);
if ($membership_count > 0) {
    elgg_register_menu_item("filter", $filter_membership);
}
$tabbed_nav = elgg_view_menu("filter", array("sort_by" => "priority"));
if (empty($body)) {
    $body = elgg_echo("notfound");
}
if (!subsite_manager_on_subsite() && elgg_is_admin_logged_in()) {
    // title menu
    elgg_register_menu_item("title", array("name" => "new", "href" => "admin/subsites/new", "text" => elgg_echo("admin:subsites:new"), "link_class" => "elgg-button elgg-button-action"));
}
// title menu
elgg_register_menu_item("title", array("name" => "request", "href" => "deelsiteaanvragen", "text" => elgg_echo("subsite_manager:menu:subsites:request"), "link_class" => "elgg-button elgg-button-action"));
$header = elgg_view('page/layouts/content/header', array("title" => $title_text));
// make layout
$body = elgg_view_layout("one_column", array("content" => $header . $search . $tabbed_nav . $body, "filter" => ""));
echo elgg_view_page($title_text, $body);

<?php

$site = elgg_get_site_entity();
$user_guid = (int) get_input("user_guid");
if (!empty($user_guid) && elgg_is_admin_logged_in() && subsite_manager_on_subsite()) {
    if ($site->isAdmin($user_guid)) {
        $site->removeAdmin($user_guid);
        system_message(elgg_echo("admin:user:removeadmin:yes"));
    } else {
        $site->makeAdmin($user_guid);
        system_message(elgg_echo("admin:user:makeadmin:yes"));
    }
} else {
    register_error(elgg_echo("InvalidParameterException:NoEntityFound"));
}
forward(REFERER);

<?php

$user = elgg_get_page_owner_entity();
$plugin = elgg_extract("entity", $vars);
$noyes_options = array("no" => elgg_echo("option:no"), "yes" => elgg_echo("option:yes"));
if (($user->isAdmin() || subsite_manager_on_subsite() && elgg_get_site_entity()->isAdmin($user->getGUID())) && $user->canEdit()) {
    echo "<div>";
    echo elgg_echo("elgg_modifications:usersettings:reportedcontent:notify:description");
    echo "&nbsp;" . elgg_view("input/dropdown", array("name" => "params[notify]", "options_values" => $noyes_options, "value" => $plugin->getUserSetting("notify", $user->getGUID())));
    echo "</div>";
}

<?php

$indexingEnabled = elgg_get_config("enable_frontpage_indexing");
if (subsite_manager_on_subsite() && !$indexingEnabled) {
    http_response_code(404);
    exit;
}
header('Content-type: text/xml');
$base = elgg_get_site_url();
$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8" ?>' . PHP_EOL . '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" />');
// Start page
$url = $xml->addChild('url');
$url->addChild('loc', $base);
$url->addChild('lastmod', date("Y-m-d", time()));
$url->addChild('priority', '0.5');
// Widget manager, extra pages
$extra_contexts = elgg_get_plugin_setting("extra_contexts", "widget_manager");
if ($extra_contexts) {
    $contexts = string_to_tag_array($extra_contexts);
    foreach ($contexts as $context) {
        $url = $xml->addChild('url');
        $url->addChild('loc', $base . $context);
        $url->addChild('lastmod', date("Y-m-d", time()));
        $url->addChild('priority', '0.5');
    }
}
// Entity pages of blogs and static pages
$batch = new ElggBatch('elgg_get_entities', array('type' => 'object', 'subtypes' => array('blog', 'static', 'page_top', 'page'), 'limit' => 2000));
foreach ($batch as $object) {
    $url = $xml->addChild('url');
    $url->addChild('loc', $object->getURL());

    echo elgg_echo('river:widget:type');
    ?>
:
		<?php 
    echo $type_dropdown;
    ?>
	</div>
	<?php 
}
// set default value for number to display
if (!isset($vars['entity']->num_display)) {
    $vars['entity']->num_display = 8;
}
$params = array('name' => 'params[num_display]', 'value' => $vars['entity']->num_display, 'options' => array(5, 8, 10, 12, 15, 20));
$num_dropdown = elgg_view('input/dropdown', $params);
if (elgg_in_context('dashboard') && !subsite_manager_on_subsite()) {
    $sites = subsite_manager_get_user_subsites(page_owner_entity()->guid);
    if ($sites) {
        $pulldown_options = array("0" => elgg_echo("widget:river_widget:edit:site_selection:current"), "all" => elgg_echo("widget:river_widget:edit:site_selection:all"));
        foreach ($sites as $site) {
            $pulldown_options[$site->guid] = $site->name;
        }
        echo "<div>";
        echo elgg_echo("widget:river_widget:edit:site_selection") . ": ";
        echo elgg_view("input/dropdown", array("name" => "params[activity_site_guid]", "value" => $vars['entity']->activity_site_guid, "options_values" => $pulldown_options, "style" => "width: 100px"));
        echo "</div>";
    }
}
?>
<div>
	<?php 

/**
 * Do not allow non-subsite members to join an open group if the subsite is closed
 *
 * @return bool false if write is not allowed
 */
function subsite_manager_group_join_action_hook($hook, $type, $returnvalue, $params)
{
    if (!subsite_manager_on_subsite()) {
        return;
    }
    $site = elgg_get_site_entity();
    if ($site->getMembership() == Subsite::MEMBERSHIP_OPEN) {
        return;
        // site is open, so everyone can become member of the group
    }
    $group_guid = get_input('group_guid');
    $group = get_entity($group_guid);
    if ($group->canEdit()) {
        return;
        // user is admin of the group of subsite, so let the default permission handler do its work
    }
    if (!$group->isPublicMembership()) {
        return;
        // group is closed, so let the default group permission handler do its work
    }
    if (!$site->isUser()) {
        register_error(elgg_echo('subsite_manager:group:could_not_join'));
        return false;
    }
}

/**
 * Used to show plugin settings for both users and admins.
 *
 * @package Elgg.Core
 * @subpackage Plugins
 */
$plugin = $vars['entity'];
$plugin_id = $plugin->getID();
$user_guid = elgg_extract('user_guid', $vars, elgg_get_logged_in_user_guid());
// Do we want to show admin settings or user settings
$type = elgg_extract('type', $vars, '');
if ($type != 'user') {
    $type = '';
}
if (elgg_view_exists("{$type}settings/{$plugin_id}/edit")) {
    elgg_deprecated_notice("{$type}settings/{$plugin_id}/edit was deprecated in favor of plugins/{$plugin_id}/{$type}settings", 1.8);
    $settings = elgg_view("{$type}settings/{$plugin_id}/edit", $vars);
} else {
    $settings = elgg_view("plugins/{$plugin_id}/{$type}settings", $vars);
}
if (!empty($settings)) {
    echo $settings;
    echo '<div class="elgg-foot">';
    echo elgg_view('input/hidden', array('name' => 'plugin_id', 'value' => $plugin_id));
    echo elgg_view('input/hidden', array('name' => 'user_guid', 'value' => $user_guid));
    echo elgg_view('input/submit', array('value' => elgg_echo('save')));
    if (empty($type) && subsite_manager_on_subsite() && subsite_manager_check_global_plugin_setting($plugin_id, "fallback_to_main_settings")) {
        echo "&nbsp;" . elgg_view("output/confirmlink", array("text" => elgg_echo("subsite_manager:plugins:subsite:fallback"), "confirm" => elgg_echo("subsite_manager:plugins:subsite:fallback:confirm"), "href" => $vars["url"] . "action/plugins/fallback?guid=" . $plugin->getGUID()));
    }
    echo '</div>';
}

<?php

$site = elgg_get_site_entity();
$annotation_id = (int) get_input("annotation_id");
if (subsite_manager_on_subsite() && !empty($annotation_id)) {
    if ($site->approveMembershipRequest($annotation_id)) {
        system_message(elgg_echo("subsite_manager:action:subsite:membership:approve:success"));
    } else {
        register_error(elgg_echo("subsite_manager:action:subsite:membership:approve:error"));
    }
} else {
    register_error(elgg_echo("subsite_manager:action:error:subsite_only"));
}
forward(REFERER);

<?php

/**
 * Change the plugin categories for Plugin Manager
 * because some plugin will not always be displayed
 *
 */
// restrict the displayed plugin for subsite admins (on subsites)
if (subsite_manager_on_subsite() && !subsite_manager_is_superadmin_logged_in()) {
    $plugins = elgg_get_plugins("any");
    $categories = array();
    foreach ($plugins as $id => $plugin) {
        $show_plugin = subsite_manager_show_plugin($plugin);
        if ($show_plugin) {
            $plugin_categories = $plugin->getManifest()->getCategories();
            if (isset($plugin_categories)) {
                foreach ($plugin_categories as $category) {
                    if (!array_key_exists($category, $categories)) {
                        $categories[$category] = ElggPluginManifest::getFriendlyCategory($category);
                    }
                }
            }
        }
    }
    asort($categories);
    // we want bundled/nonbundled pulled to be at the top of the list
    unset($categories['bundled']);
    unset($categories['nonbundled']);
    $common_categories = array('all' => elgg_echo('admin:plugins:category:all'), 'active' => elgg_echo('admin:plugins:category:active'), 'inactive' => elgg_echo('admin:plugins:category:inactive'), 'bundled' => elgg_echo('admin:plugins:category:bundled'), 'nonbundled' => elgg_echo('admin:plugins:category:nonbundled'));
    $categories = array_merge($common_categories, $categories);
    $vars["category_options"] = $categories;

<?php

$base_url = elgg_get_site_url();
?>
<div class="rhs-dropdown">
	<a data-dropdown-trigger href="#" title="Pleio" class="rhs-top-navigation__link rhs-top-navigation__link--left rhs-dropdown__trigger">Pleio</a>
	<div class="rhs-dropdown__wrapper">
	<?php 
if (subsite_manager_on_subsite()) {
    // link back to parent site
    $parent = elgg_get_config("site")->getOwnerEntity();
    $base_url = $parent->url;
    echo elgg_view("output/url", array("href" => $base_url, "text" => $parent->name, "is_trusted" => true, "class" => "rhs-dropdown__link"));
}
$sites = subsite_manager_get_user_subsites();
if ($sites) {
    // list subsites
    foreach ($sites as $site) {
        if ($site->url != elgg_get_site_url()) {
            echo elgg_view("output/url", array("href" => $site->url, "text" => $site->name, "is_trusted" => true, "class" => "rhs-dropdown__link"));
        }
    }
}
echo elgg_view("output/url", array("href" => $base_url . "subsites", "text" => elgg_echo("subsite_manager:menu:subsites:all"), "class" => "rhs-dropdown__link elgg-quiet", "is_trusted" => true));
if ($sites) {
    echo elgg_view("output/url", array("href" => $base_url . "subsites/mine", "text" => elgg_echo("subsite_manager:menu:subsites:mine"), "class" => "rhs-dropdown__link elgg-quiet", "is_trusted" => true));
}
?>
	</div>
</div>

/**
 * actions related to the login of a user
 *
 * @param unknown_type $event
 * @param unknown_type $object_type
 * @param unknown_type $object
 */
function subsite_manager_login_event_handler($event, $object_type, $user)
{
    if (!empty($user) && elgg_instanceof($user, "user", null, "ElggUser")) {
        // if memcache is available, invalidate the memcache content
        if (is_memcache_available()) {
            register_shutdown_function("subsite_manager_login_shutdown_hook", $user);
        }
        // check if this is the first login, if so check for invited subsites
        if (empty($user->last_login)) {
            if ($subsites = subsite_manager_get_invited_subsites($user)) {
                foreach ($subsites as $subsite) {
                    if ($subsite->addUser($user->getGUID())) {
                        system_message(elgg_echo("subsite_manager:login:subsite:join", array($subsite->name)));
                        // notify user about add
                        $subject = elgg_echo("subsite_manager:login:subsite:join", array($subsite->name));
                        $message = elgg_echo("subsite_manager:login:subsite:join:notify:message", array($user->name, $subsite->name, $subsite->url));
                        notify_user($user->getGUID(), $subsite->getGUID(), $subject, $message);
                    }
                }
            }
        }
        // simplesaml work around
        if (!subsite_manager_on_subsite()) {
            // we need to rewrite this in order to work around a 'feature'
            if (isset($_SESSION["saml_attributes"]) && isset($_SESSION["saml_source"])) {
                $_SESSION["sm_saml_attributes"] = $_SESSION["saml_attributes"];
                $_SESSION["sm_saml_source"] = $_SESSION["saml_source"];
            }
        }
    }
}