1 files changed, 55 insertions, 0 deletions
diff --git a/core/helpers/rest.php b/core/helpers/rest.php
new file mode 100644
index 00000000..154ef6f6
--- /dev/null
+++ b/core/helpers/rest.php
@@ -0,0 +1,55 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2008 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+class REST_Core {
+  /**
+   * We're expecting to run in an environment that only supports GET/POST, so expect to tunnel
+   * PUT and DELETE through POST.
+   *
+   * Returns the HTTP request method taking into consideration PUT/DELETE tunneling.
+   * @todo Move this to a MY_request helper?
+   * @return string HTTP request method
+   */
+  public static function request_method() {
+    if (request::method() == "get") {
+      return "get";
+    } else {
+      $input = Input::instance();
+      switch ($input->post("_method", $input->get("_method"))) {
+      case "put":    return "put";
+      case "delete": return "delete";
+      default:       return "post";
+      }
+    }
+  }
+
+  /**
+   * Choose an output format based on what the client prefers to accept.
+   * @return string "html", "xml" or "json"
+   */
+  public static function output_format() {
+    // Pick a format, but let it be overridden.
+      $input = Input::instance();
+    return $input->get(
+      "_format", $input->post(
+        "_format", request::preferred_accept(
+          array("html", "xml", "json"))));
+  }
+}