From d02293ad90c219474c0fae10249a642b645c3b8e Mon Sep 17 00:00:00 2001
From: Maik Hundt <maik.hundt@wolterskluwer.com>
Date: Thu, 9 Jan 2020 15:37:52 +0100
Subject: [PATCH 1/3] fix Notice: Undefined index: 0777 in
 Twistor\Flysystem\Plugin\Stat->mergeMeta() (line 157 of
 \vendor\twistor\flysystem-stream-wrapper\src\Flysystem\Plugin\Stat.php).

---
 src/Flysystem/Plugin/Stat.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Flysystem/Plugin/Stat.php b/src/Flysystem/Plugin/Stat.php
index 94bd492..07bc976 100644
--- a/src/Flysystem/Plugin/Stat.php
+++ b/src/Flysystem/Plugin/Stat.php
@@ -154,7 +154,11 @@ protected function mergeMeta(array $metadata)
         $ret['gid'] = $this->uid->getGid();
 
         $ret['mode'] = $metadata['type'] === 'dir' ? 040000 : 0100000;
-        $ret['mode'] += $this->permissions[$metadata['type']][$metadata['visibility']];
+        $visibility = $metadata['visibility'];
+        if (is_integer($metadata['visibility'])) {
+          $visibility = $metadata['visibility'] & 0044 ? AdapterInterface::VISIBILITY_PUBLIC : AdapterInterface::VISIBILITY_PRIVATE;
+        }
+        $ret['mode'] += $this->permissions[$metadata['type']][$visibility];
 
         if (isset($metadata['size'])) {
             $ret['size'] = (int) $metadata['size'];

From 824d6dbf31e1cfb7634861c492523ffe91688c01 Mon Sep 17 00:00:00 2001
From: Maik Hundt <maik.hundt@wolterskluwer.com>
Date: Thu, 9 Jan 2020 15:54:01 +0100
Subject: [PATCH 2/3] fix

---
 src/Flysystem/Plugin/Stat.php | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/Flysystem/Plugin/Stat.php b/src/Flysystem/Plugin/Stat.php
index 07bc976..1e47256 100644
--- a/src/Flysystem/Plugin/Stat.php
+++ b/src/Flysystem/Plugin/Stat.php
@@ -154,10 +154,7 @@ protected function mergeMeta(array $metadata)
         $ret['gid'] = $this->uid->getGid();
 
         $ret['mode'] = $metadata['type'] === 'dir' ? 040000 : 0100000;
-        $visibility = $metadata['visibility'];
-        if (is_integer($metadata['visibility'])) {
-          $visibility = $metadata['visibility'] & 0044 ? AdapterInterface::VISIBILITY_PUBLIC : AdapterInterface::VISIBILITY_PRIVATE;
-        }
+        $visibility = $metadata['visibility'] & 0044 ? AdapterInterface::VISIBILITY_PUBLIC : AdapterInterface::VISIBILITY_PRIVATE;
         $ret['mode'] += $this->permissions[$metadata['type']][$visibility];
 
         if (isset($metadata['size'])) {

From 3f90145d4016f826ad80cf921550cda2c68c4402 Mon Sep 17 00:00:00 2001
From: Maik Hundt <maik.hundt@wolterskluwer.com>
Date: Fri, 10 Jan 2020 10:23:55 +0100
Subject: [PATCH 3/3] more generic (different adapter)

---
 src/Flysystem/Plugin/Stat.php | 37 ++++++++++++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/src/Flysystem/Plugin/Stat.php b/src/Flysystem/Plugin/Stat.php
index 1e47256..39ef289 100644
--- a/src/Flysystem/Plugin/Stat.php
+++ b/src/Flysystem/Plugin/Stat.php
@@ -139,6 +139,38 @@ protected function getWithMetadata($path, array $ignore)
         return $metadata;
     }
 
+    /**
+     * Normalize a permissions string.
+     *
+     * @param string $permissions
+     *
+     * @return int
+     */
+    protected function normalizePermissions($permissions)
+    {
+      if (is_numeric($permissions)) {
+        return $permissions & 0777;
+      }
+
+      // remove the type identifier
+      $permissions = substr($permissions, 1);
+
+      // map the string rights to the numeric counterparts
+      $map = ['-' => '0', 'r' => '4', 'w' => '2', 'x' => '1'];
+      $permissions = strtr($permissions, $map);
+
+      // split up the permission groups
+      $parts = str_split($permissions, 3);
+
+      // convert the groups
+      $mapper = function ($part) {
+        return array_sum(str_split($part));
+      };
+
+      // converts to decimal number
+      return octdec(implode('', array_map($mapper, $parts)));
+    }
+
     /**
      * Merges the available metadata from Filesystem::getMetadata().
      *
@@ -154,7 +186,10 @@ protected function mergeMeta(array $metadata)
         $ret['gid'] = $this->uid->getGid();
 
         $ret['mode'] = $metadata['type'] === 'dir' ? 040000 : 0100000;
-        $visibility = $metadata['visibility'] & 0044 ? AdapterInterface::VISIBILITY_PUBLIC : AdapterInterface::VISIBILITY_PRIVATE;
+        $visibility = $metadata['visibility'];
+        if ($visibility != AdapterInterface::VISIBILITY_PUBLIC && $visibility != AdapterInterface::VISIBILITY_PRIVATE) {
+          $visibility = $this->normalizePermissions($visibility) & 0044 ? AdapterInterface::VISIBILITY_PUBLIC : AdapterInterface::VISIBILITY_PRIVATE;
+        }
         $ret['mode'] += $this->permissions[$metadata['type']][$visibility];
 
         if (isset($metadata['size'])) {