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-rw-r--r--lib/private/Encryption/Util.php21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/private/Encryption/Util.php b/lib/private/Encryption/Util.php
index a828483265b..bd27d71c40e 100644
--- a/lib/private/Encryption/Util.php
+++ b/lib/private/Encryption/Util.php
@@ -385,4 +385,25 @@ class Util {
return $result;
}
+
+ /**
+ * get path to key folder for a given file
+ *
+ * @param string $encryptionModuleId
+ * @param string $path path to the file, relative to data/
+ * @return string
+ */
+ public function getFileKeyDir(string $encryptionModuleId, string $path): string {
+ [$owner, $filename] = $this->getUidAndFilename($path);
+ $root = $this->getKeyStorageRoot();
+
+ // in case of system-wide mount points the keys are stored directly in the data directory
+ if ($this->isSystemWideMountPoint($filename, $owner)) {
+ $keyPath = $root . '/' . '/files_encryption/keys' . $filename . '/';
+ } else {
+ $keyPath = $root . '/' . $owner . '/files_encryption/keys' . $filename . '/';
+ }
+
+ return Filesystem::normalizePath($keyPath . $encryptionModuleId . '/', false);
+ }
}