1 files changed, 63 insertions, 0 deletions
diff --git a/library/Icingadb/Hook/PluginOutputHook.php b/library/Icingadb/Hook/PluginOutputHook.php
new file mode 100644
index 0000000..7c744ee
--- /dev/null
+++ b/library/Icingadb/Hook/PluginOutputHook.php
@@ -0,0 +1,63 @@
+<?php
+
+/* Icinga DB Web | (c) 2021 Icinga GmbH | GPLv2 */
+
+namespace Icinga\Module\Icingadb\Hook;
+
+use Exception;
+use Icinga\Application\Hook;
+use Icinga\Application\Logger;
+use Icinga\Module\Icingadb\Hook\Common\HookUtils;
+
+abstract class PluginOutputHook
+{
+    use HookUtils;
+
+    /**
+     * Return whether the given command is supported or not
+     *
+     * @param string $commandName
+     *
+     * @return bool
+     */
+    abstract public function isSupportedCommand(string $commandName): bool;
+
+    /**
+     * Process the given plugin output based on the specified check command
+     *
+     * Try to process the output as efficient and fast as possible.
+     * Especially list view performance may suffer otherwise.
+     *
+     * @param string $output A host's or service's output
+     * @param string $commandName The name of the checkcommand that produced the output
+     * @param bool $enrichOutput Whether macros or other markup should be processed
+     *
+     * @return string
+     */
+    abstract public function render(string $output, string $commandName, bool $enrichOutput): string;
+
+    /**
+     * Let all hooks process the given plugin output based on the specified check command
+     *
+     * @param string $output
+     * @param string $commandName
+     * @param bool $enrichOutput
+     *
+     * @return string
+     */
+    final public static function processOutput(string $output, string $commandName, bool $enrichOutput): string
+    {
+        foreach (Hook::all('Icingadb\\PluginOutput') as $hook) {
+            /** @var self $hook */
+            try {
+                if ($hook->isSupportedCommand($commandName)) {
+                    $output = $hook->render($output, $commandName, $enrichOutput);
+                }
+            } catch (Exception $e) {
+                Logger::error("Unable to process plugin output: %s\n%s", $e, $e->getTraceAsString());
+            }
+        }
+
+        return $output;
+    }
+}