1 files changed, 121 insertions, 0 deletions
diff --git a/library/Icingadb/Hook/ExtensionHook/ObjectDetailExtensionHook.php b/library/Icingadb/Hook/ExtensionHook/ObjectDetailExtensionHook.php
new file mode 100644
index 0000000..7f880e8
--- /dev/null
+++ b/library/Icingadb/Hook/ExtensionHook/ObjectDetailExtensionHook.php
@@ -0,0 +1,121 @@
+<?php
+
+/* Icinga DB Web | (c) 2021 Icinga GmbH | GPLv2 */
+
+namespace Icinga\Module\Icingadb\Hook\ExtensionHook;
+
+use Exception;
+use Icinga\Application\Hook;
+use Icinga\Application\Logger;
+use Icinga\Exception\IcingaException;
+use Icinga\Module\Icingadb\Hook\EventDetailExtensionHook;
+use Icinga\Module\Icingadb\Hook\HostDetailExtensionHook;
+use Icinga\Module\Icingadb\Hook\ServiceDetailExtensionHook;
+use Icinga\Module\Icingadb\Hook\UserDetailExtensionHook;
+use Icinga\Module\Icingadb\Hook\UsergroupDetailExtensionHook;
+use Icinga\Module\Icingadb\Model\History;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Icingadb\Model\Service;
+use Icinga\Module\Icingadb\Model\User;
+use Icinga\Module\Icingadb\Model\Usergroup;
+use InvalidArgumentException;
+use ipl\Html\Attributes;
+use ipl\Html\HtmlElement;
+use ipl\Html\HtmlString;
+use ipl\Html\Text;
+use ipl\Html\ValidHtml;
+use ipl\Orm\Model;
+
+use function ipl\Stdlib\get_php_type;
+
+abstract class ObjectDetailExtensionHook extends BaseExtensionHook
+{
+    /**
+     * Load all extensions for the given object
+     *
+     * @param Host|Service|User|Usergroup|History $object
+     *
+     * @return array<int, ValidHtml>
+     *
+     * @throws InvalidArgumentException If the given model is not supported
+     */
+    final public static function loadExtensions(Model $object): array
+    {
+        switch (true) {
+            case $object instanceof Host:
+                $hookName = 'Icingadb\\HostDetailExtension';
+                break;
+            case $object instanceof Service:
+                $hookName = 'Icingadb\\ServiceDetailExtension';
+                break;
+            case $object instanceof User:
+                $hookName = 'Icingadb\\UserDetailExtension';
+                break;
+            case $object instanceof Usergroup:
+                $hookName = 'Icingadb\\UsergroupDetailExtension';
+                break;
+            case $object instanceof History:
+                $hookName = 'Icingadb\\EventDetailExtension';
+                break;
+            default:
+                throw new InvalidArgumentException(
+                    sprintf('%s is not a supported object type', get_php_type($object))
+                );
+        }
+
+        $extensions = [];
+        $lastUsedLocations = [];
+
+        /**
+         * @var $hook HostDetailExtensionHook
+         * @var $hook ServiceDetailExtensionHook
+         * @var $hook UserDetailExtensionHook
+         * @var $hook UsergroupDetailExtensionHook
+         * @var $hook EventDetailExtensionHook
+         */
+        foreach (Hook::all($hookName) as $hook) {
+            $location = $hook->getLocation();
+            if ($location < 0) {
+                $location = null;
+            }
+
+            if ($location === null) {
+                $section = $hook->getSection();
+                if (! isset(self::BASE_LOCATIONS[$section])) {
+                    Logger::error('Detail extension %s is using an invalid section: %s', get_class($hook), $section);
+                    $section = self::DETAIL_SECTION;
+                }
+
+                if (isset($lastUsedLocations[$section])) {
+                    $location = ++$lastUsedLocations[$section];
+                } else {
+                    $location = self::BASE_LOCATIONS[$section];
+                    $lastUsedLocations[$section] = $location;
+                }
+            }
+
+            try {
+                // It may be ValidHtml, but modules shouldn't be able to break our views.
+                // That's why it needs to be rendered instantly, as any error will then
+                // be caught here.
+                $extension = (string) $hook->getHtmlForObject(clone $object);
+
+                $moduleName = $hook->getModule()->getName();
+
+                $extensions[$location] = new HtmlElement(
+                    'div',
+                    Attributes::create([
+                        'class' => 'icinga-module module-' . $moduleName,
+                        'data-icinga-module' => $moduleName
+                    ]),
+                    HtmlString::create($extension)
+                );
+            } catch (Exception $e) {
+                Logger::error("Failed to load detail extension: %s\n%s", $e, $e->getTraceAsString());
+                $extensions[$location] = Text::create(IcingaException::describe($e));
+            }
+        }
+
+        return $extensions;
+    }
+}