From ce516a095f9023daa6d171fb9aeeae11325bbcad Mon Sep 17 00:00:00 2001
From: Tim Otten <totten@civicrm.org>
Date: Thu, 8 Sep 2022 19:04:11 -0700
Subject: [PATCH] Extensions - Use ext_max_depth to limit scans for info.xml

---
 CRM/Extension/Container/Basic.php | 13 +++++++++++--
 CRM/Extension/System.php          |  7 +++++--
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/CRM/Extension/Container/Basic.php b/CRM/Extension/Container/Basic.php
index 0588c5eeb1..6d6157c041 100644
--- a/CRM/Extension/Container/Basic.php
+++ b/CRM/Extension/Container/Basic.php
@@ -77,6 +77,12 @@ class CRM_Extension_Container_Basic implements CRM_Extension_Container_Interface
    */
   protected $filters = [];
 
+  /**
+   * @var int|null
+   *   Maximum number of subdirectories to search.
+   */
+  protected $maxDepth;
+
   /**
    * @param string $baseDir
    *   Local path to the container.
@@ -86,12 +92,15 @@ class CRM_Extension_Container_Basic implements CRM_Extension_Container_Interface
    *   Cache in which to store extension metadata.
    * @param string $cacheKey
    *   Unique name for this container.
+   * @param int|null $maxDepth
+   *   Maximum number of subdirectories to search.
    */
-  public function __construct($baseDir, $baseUrl, CRM_Utils_Cache_Interface $cache = NULL, $cacheKey = NULL) {
+  public function __construct($baseDir, $baseUrl, CRM_Utils_Cache_Interface $cache = NULL, $cacheKey = NULL, ?int $maxDepth = NULL) {
     $this->cache = $cache;
     $this->cacheKey = $cacheKey;
     $this->baseDir = rtrim($baseDir, '/');
     $this->baseUrl = rtrim($baseUrl, '/');
+    $this->maxDepth = $maxDepth;
   }
 
   /**
@@ -198,7 +207,7 @@ class CRM_Extension_Container_Basic implements CRM_Extension_Container_Interface
       }
       if (!is_array($this->relPaths)) {
         $this->relPaths = [];
-        $infoPaths = CRM_Utils_File::findFiles($this->baseDir, 'info.xml');
+        $infoPaths = CRM_Utils_File::findFiles($this->baseDir, 'info.xml', FALSE, $this->maxDepth);
         foreach ($infoPaths as $infoPath) {
           $relPath = CRM_Utils_File::relativize(dirname($infoPath), $this->baseDir);
           try {
diff --git a/CRM/Extension/System.php b/CRM/Extension/System.php
index 32d6cb6437..98815e8758 100644
--- a/CRM/Extension/System.php
+++ b/CRM/Extension/System.php
@@ -85,6 +85,7 @@ class CRM_Extension_System {
    */
   public function __construct($parameters = []) {
     $config = CRM_Core_Config::singleton();
+    $parameters['maxDepth'] = CRM_Utils_Array::value('maxDepth', $parameters, \Civi::settings()->get('ext_max_depth'));
     $parameters['extensionsDir'] = CRM_Utils_Array::value('extensionsDir', $parameters, $config->extensionsDir);
     $parameters['extensionsURL'] = CRM_Utils_Array::value('extensionsURL', $parameters, $config->extensionsURL);
     $parameters['resourceBase'] = CRM_Utils_Array::value('resourceBase', $parameters, $config->resourceBase);
@@ -122,7 +123,8 @@ class CRM_Extension_System {
         $this->parameters['civicrm_root'],
         $this->parameters['resourceBase'],
         $this->getCache(),
-        'civiroot'
+        'civiroot',
+        $this->parameters['maxDepth']
       );
 
       // TODO: CRM_Extension_Container_Basic( /sites/all/modules )
@@ -138,7 +140,8 @@ class CRM_Extension_System {
             $vendorPath,
             CRM_Utils_File::addTrailingSlash($this->parameters['userFrameworkBaseURL'], '/') . 'vendor',
             $this->getCache(),
-            'cmsvendor'
+            'cmsvendor',
+            $this->parameters['maxDepth']
           );
         }
       }
-- 
2.25.1