From 8f3b411969ffdd733a0ba54098e08f8ca7c1369e Mon Sep 17 00:00:00 2001
From: Dries Vints <dries@vints.io>
Date: Sun, 18 Jul 2021 17:57:36 +0200
Subject: [PATCH] [8.x] Passthrough excluded uri's in maintenance mode (#38041)

* Passthrough excluded uri's in maintenance mode

* Apply fixes from StyleCI (#38040)

* wildcard paths

* formatting

Co-authored-by: Taylor Otwell <taylorotwell@gmail.com>
---
 .../Foundation/Console/DownCommand.php        | 17 ++++++++++++++
 .../Console/stubs/maintenance-mode.stub       | 23 +++++++++++++++++++
 .../PreventRequestsDuringMaintenance.php      | 10 ++++++++
 3 files changed, 50 insertions(+)

diff --git a/src/Illuminate/Foundation/Console/DownCommand.php b/src/Illuminate/Foundation/Console/DownCommand.php
index 28586e003350..c798b0d5d7a2 100644
--- a/src/Illuminate/Foundation/Console/DownCommand.php
+++ b/src/Illuminate/Foundation/Console/DownCommand.php
@@ -2,9 +2,11 @@
 
 namespace Illuminate\Foundation\Console;
 
+use App\Http\Middleware\PreventRequestsDuringMaintenance;
 use Exception;
 use Illuminate\Console\Command;
 use Illuminate\Foundation\Exceptions\RegisterErrorViewPaths;
+use Throwable;
 
 class DownCommand extends Command
 {
@@ -69,6 +71,7 @@ public function handle()
     protected function getDownFilePayload()
     {
         return [
+            'except' => $this->excludedPaths(),
             'redirect' => $this->redirectPath(),
             'retry' => $this->getRetryTime(),
             'refresh' => $this->option('refresh'),
@@ -78,6 +81,20 @@ protected function getDownFilePayload()
         ];
     }
 
+    /**
+     * Get the paths that should be excluded from maintenance mode.
+     *
+     * @return array
+     */
+    protected function excludedPaths()
+    {
+        try {
+            return $this->laravel->make(PreventRequestsDuringMaintenance::class)->getExcludedPaths();
+        } catch (Throwable $e) {
+            return [];
+        }
+    }
+
     /**
      * Get the path that users should be redirected to.
      *
diff --git a/src/Illuminate/Foundation/Console/stubs/maintenance-mode.stub b/src/Illuminate/Foundation/Console/stubs/maintenance-mode.stub
index 18189ebd1b4e..d3d7e148444e 100644
--- a/src/Illuminate/Foundation/Console/stubs/maintenance-mode.stub
+++ b/src/Illuminate/Foundation/Console/stubs/maintenance-mode.stub
@@ -13,6 +13,29 @@ if (! isset($data['template'])) {
     return;
 }
 
+// Allow framework to handle request if request URI is in the exclude list...
+if (isset($data['except'])) {
+    $uri = parse_url($_SERVER['REQUEST_URI'])['path'];
+
+    $uri = rawurldecode($uri !== '/' ? trim($uri, '/') : $uri);
+
+    foreach ((array) $data['except'] as $except) {
+        $except = $except !== '/' ? trim($except, '/') : $except;
+
+        if ($except == $uri) {
+            return;
+        }
+
+        $except = preg_quote($except, '#');
+
+        $except = str_replace('\*', '.*', $except);
+
+        if (preg_match('#^'.$except.'\z#u', $uri) === 1) {
+            return;
+        }
+    }
+}
+
 // Allow framework to handle maintenance mode bypass route...
 if (isset($data['secret']) && $_SERVER['REQUEST_URI'] === '/'.$data['secret']) {
     return;
diff --git a/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php b/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php
index c65629d0aeee..a8692bc4f7e3 100644
--- a/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php
+++ b/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php
@@ -153,4 +153,14 @@ protected function getHeaders($data)
 
         return $headers;
     }
+
+    /**
+     * Get the URIs that should be accessible even when maintenance mode is enabled.
+     *
+     * @return array
+     */
+    public function getExcludedPaths()
+    {
+        return $this->except;
+    }
 }