1 files changed, 54 insertions, 0 deletions
diff --git a/library/X509/Hook/SniHook.php b/library/X509/Hook/SniHook.php
new file mode 100644
index 0000000..0b707b6
--- /dev/null
+++ b/library/X509/Hook/SniHook.php
@@ -0,0 +1,54 @@
+<?php
+
+// Icinga Web 2 X.509 Module | (c) 2019 Icinga GmbH | GPLv2
+
+namespace Icinga\Module\X509\Hook;
+
+use Icinga\Application\Config;
+use Icinga\Application\Hook;
+use Icinga\Data\Filter\Filter;
+use Icinga\Util\StringHelper;
+
+/**
+ * Hook for SNI maps
+ */
+abstract class SniHook
+{
+    /**
+     * Return the SNI maps of all hooks
+     *
+     * ['192.0.2.1' => ['example.com', 'mail.example.com']]
+     *
+     * @return string[][]
+     */
+    public static function getAll()
+    {
+        // This is implemented as map of maps to avoid duplicates,
+        // the caller is expected to handle it as map of sequences though
+        $sni = [];
+
+        /** @var self $hook */
+        foreach (Hook::all('X509\Sni') as $hook) {
+            foreach ($hook->getHosts() as $ip => $hostname) {
+                $sni[$ip][$hostname] = $hostname;
+            }
+        }
+
+        foreach (Config::module('x509', 'sni') as $ip => $config) {
+            foreach (array_filter(StringHelper::trimSplit($config->get('hostnames', []))) as $hostname) {
+                $sni[$ip][$hostname] = $hostname;
+            }
+        }
+
+        return $sni;
+    }
+
+    /**
+     * Aggregate pairs of ip => hostname
+     *
+     * @param   Filter  $filter
+     *
+     * @return \Generator
+     */
+    abstract public function getHosts(Filter $filter = null);
+}