Use gzencode / gzdecode

.gitignore

@@ -0,0 +1,3 @@
+.idea
+/logs/*
+/config.php

app/controllers/db.php

@@ -237,8 +237,8 @@ public function doDbExport() {
 				if (x("gzip")) {
 					ob_end_clean();
 					header("Content-type: application/x-gzip");
-					header("Content-Disposition: attachment; filename=\"{$prefix}.gz\"");
-					echo gzcompress($this->contents, 9);
+					header("Content-Disposition: attachment; filename=\"{$prefix}.js.gz\"");
+					echo gzencode($this->contents, 9);
 					exit();
 				}
 				else {
@@ -264,12 +264,9 @@ public function doDbImport() {
 				$tmp = $_FILES["json"]["tmp_name"];
 
 				//read file by it's format
-				$body = "";
-				if (preg_match("/\\.gz$/", $_FILES["json"]["name"])) {
-					$body = gzuncompress(file_get_contents($tmp));
-				}
-				else {
-					$body = file_get_contents($tmp);
+				$body = file_get_contents($tmp);
+				if (preg_match("/\\.js\\.gz$/", $_FILES["json"]["name"])) {
+					$body = gzdecode($body);
 				}
 
 				//check format

app/funcs/functions.php

@@ -280,4 +280,12 @@ function r_get_collection_icon($collectionName) {
 	return "table";
 }
 
+// PHP < 5.4
+if (!function_exists('gzdecode')) {
+	// http://php.net/manual/ru/function.gzdecode.php#106397
+	function gzdecode($data) {
+		return gzinflate(substr($data,10,-8));
+	}
+}
+
 ?>