recursively delete temporary directories

rmdir() will only succeed if the target directory is empty.
use a helper function to recursively delete the target directory
contents before using rmdir() on it.

Author: gkralik

lib/Firefox/FirefoxProfile.php

@@ -100,9 +100,9 @@ public function encode() {
     $profile = base64_encode(file_get_contents($temp_zip));
 
     // clean up
-    rmdir($temp_dir);
+    $this->deleteDirectory($temp_dir);
     unlink($temp_zip);
-    
+
     return $profile;
   }
 
@@ -129,8 +129,8 @@ private function installExtension($extension, $profile_dir) {
     $this->extractTo($extension, $ext_dir);
 
     // clean up
-    rmdir($temp_dir);
-    
+    $this->deleteDirectory($temp_dir);
+
     return $ext_dir;
   }
 
@@ -152,6 +152,23 @@ private function createTempDirectory($prefix = '') {
     return $temp_dir;
   }
 
+  /**
+   * @param string $directory The path to the directory.
+   */
+  private function deleteDirectory($directory) {
+    $dir = new RecursiveDirectoryIterator($directory, FilesystemIterator::SKIP_DOTS);
+    $files = new RecursiveIteratorIterator($dir, RecursiveIteratorIterator::CHILD_FIRST);
+
+    foreach($paths as $path) {
+      if ($path->isDir() && !$path->isLink()) {
+        rmdir($path->getPathname());
+      } else {
+        unlink($path->getPathname())
+      }
+    }
+
+    rmdir($directory;
+  }
   /**
    * @param string $xpi        The path to the .xpi extension.
    * @param string $target_dir The path to the unzip directory.