Fix the credentials page for port 8080 and improve the readme

Signed-off-by: szaimen <szaimen@e.mail.de>

php/public/index.php

@@ -98,7 +98,7 @@ $app->get('/setup', function ($request, $response, $args) use ($container) {
     /** @var \AIO\Data\Setup $setup */
     $setup = $container->get(\AIO\Data\Setup::class);
 
-    if(!$setup->CanBeInstalled()) {
+    if(!$setup->CanBeInstalled($request)) {
         return $view->render(
             $response,
             'already-installed.twig'

php/src/Data/DataConst.php

@@ -23,6 +23,10 @@ class DataConst {
         return self::GetDataDirectory() . '/configuration.json';
     }
 
+    public static function GetTempSetupFile() : string {
+        return self::GetDataDirectory() . '/temp.setup';
+    }
+
     public static function GetBackupSecretFile() : string {
         return self::GetDataDirectory() . '/backupsecret';
     }

php/src/Data/Setup.php

@@ -3,6 +3,7 @@
 namespace AIO\Data;
 
 use AIO\Auth\PasswordGenerator;
+use Psr\Http\Message\ServerRequestInterface as Request;
 
 class Setup
 {
@@ -26,7 +27,29 @@ class Setup
         return $password;
     }
 
-    public function CanBeInstalled() : bool {
-        return !file_exists(DataConst::GetConfigFile());
+    public function CanBeInstalled(?Request $request) : bool {
+        if (file_exists(DataConst::GetConfigFile())) {
+            return false;
+        }
+
+        if ($request === null) {
+            return true;
+        }
+
+        $uri = $request->getUri();
+        if ($uri->getPort() === '8080') {
+            if (!file_exists(DataConst::GetTempSetupFile())) {
+                if(!is_dir(DataConst::GetDataDirectory())) {
+                    mkdir(DataConst::GetDataDirectory());
+                }
+                file_put_contents(DataConst::GetTempSetupFile(), '');
+                return false;
+            } else {
+                    unlink(DataConst::GetTempSetupFile());
+                    return true;
+            }
+        }
+
+        return true;
     }
 }

readme.md

@@ -36,9 +36,20 @@ nextcloud/all-in-one:latest
 E.g. https://internal.ip.of.this.server:8080<br>
 If your server has port 80 and 8443 open and you point a domain to your server, you can get a valid certificate automatially by opening the Nextcloud AIO Interface via:<br>
 https://your-domain-that-points-to-this-server.tld:8443
+4. You should now see your login credentials. If not, please have a look at the FAQ section below.
 
 Explanation of used ports:
 
 - `80`: redirects to Nextcloud (HTTP) (is used for getting the certificate via ACME http-challenge for mastercontainer)
 - `8080`: Master Container Interface with self-signed certificate (HTTPS) (works always, also if only access via IP-address is possible, e.g. `https://internal.ip.address:8080/`)
 - `8443`: Master Container Interface with valid automatic certificate via Let's Encrypt! (HTTPS) (Only works if you access the container via a public domain, e.g. `https://public.domain.com:8443/` and not via IP-address.)
+
+## FAQ
+- **Is running Nextcloud AIO via Docker Compose supported?**<br>
+    Unfortunately no, as you most likely run into many issues when trying to do so.
+- **I don't see the initial screen with my login credentials. What to do?**<br>
+    Please try to remove the mastercontainer first by running:
+    ```
+    sudo docker stop nextcloud-aio-mastercontainer; sudo docker rm nextcloud-aio-mastercontainer; sudo docker rm nextcloud_aio_mastercontainer
+    ```
+    Afterwards, install it again by running the above mentioned command again.