fix labels and text editors for Quest creation

www/analytics/core/Unzip/Gzip.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Unzip;
+
+
+/**
+ * Unzip implementation for .gz files.
+ *
+ */
+class Gzip implements UncompressInterface
+{
+    /**
+     * Name of .gz file.
+     *
+     * @var string
+     */
+    private $filename = null;
+
+    /**
+     * Error string.
+     *
+     * @var string
+     */
+    private $error = null;
+
+    /**
+     * Constructor.
+     *
+     * @param string $filename Name of .gz file.
+     */
+    public function __construct($filename)
+    {
+        $this->filename = $filename;
+    }
+
+    /**
+     * Extracts the contents of the .gz file to $pathExtracted.
+     *
+     * @param string $pathExtracted Must be file, not directory.
+     * @return bool true if successful, false if otherwise.
+     */
+    public function extract($pathExtracted)
+    {
+        $file = gzopen($this->filename, 'r');
+        if ($file === false) {
+            $this->error = "gzopen failed";
+            return false;
+        }
+
+        $output = fopen($pathExtracted, 'w');
+        while (!feof($file)) {
+            fwrite($output, fread($file, 1024 * 1024));
+        }
+        fclose($output);
+
+        $success = gzclose($file);
+        if ($success === false) {
+            $this->error = "gzclose failed";
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Get error status string for the latest error.
+     *
+     * @return string
+     */
+    public function errorInfo()
+    {
+        return $this->error;
+    }
+}
+