feat: implement global autoresponder plugin

2026-06-02 19:19:00 +02:00
commit 6f989af278
62 changed files with 2018 additions and 0 deletions
@@ -0,0 +1,54 @@
+<?php
+declare(strict_types=1);
+
+final class MailboxDirectory
+{
+    public function __construct(private string $virtualRoot = '/etc/virtual')
+    {
+    }
+
+    /** @return array<int,array{domain:string,mailbox:string,email:string}> */
+    public function mailboxesForUser(string $username): array
+    {
+        $domains = $this->domainsForUser($username);
+        $out = [];
+        foreach ($domains as $domain) {
+            $passwd = $this->virtualRoot . '/' . $domain . '/passwd';
+            if (!is_file($passwd)) {
+                continue;
+            }
+            $lines = file($passwd, FILE_IGNORE_NEW_LINES) ?: [];
+            foreach ($lines as $line) {
+                $local = trim(strtok($line, ':') ?: '');
+                if ($local === '' || !preg_match('/^[A-Za-z0-9._+-]+$/', $local)) {
+                    continue;
+                }
+                $out[] = ['domain' => $domain, 'mailbox' => $local, 'email' => $local . '@' . $domain];
+            }
+        }
+        usort($out, static fn (array $a, array $b): int => strcmp($a['email'], $b['email']));
+        return $out;
+    }
+
+    /** @return string[] */
+    private function domainsForUser(string $username): array
+    {
+        $path = $this->virtualRoot . '/domainowners';
+        if (!is_file($path)) {
+            return [];
+        }
+        $domains = [];
+        foreach (file($path, FILE_IGNORE_NEW_LINES) ?: [] as $line) {
+            if (!str_contains($line, ':')) {
+                continue;
+            }
+            [$domain, $owner] = array_map('trim', explode(':', $line, 2));
+            if ($owner !== $username || !preg_match('/^[A-Za-z0-9.-]+$/', $domain)) {
+                continue;
+            }
+            $domains[] = strtolower($domain);
+        }
+        sort($domains);
+        return $domains;
+    }
+}