Move Service Worker %2f path validation logic from browser into Blink (1)

content/browser/service_worker/service_worker_utils.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_
-#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_
-
-#include "base/macros.h"
-#include "content/common/content_export.h"
-#include "content/common/service_worker/service_worker_status_code.h"
-#include "content/public/common/resource_type.h"
-#include "url/gurl.h"
-
-namespace content {
-
-class ServiceWorkerUtils {
- public:
-  static bool IsMainResourceType(ResourceType type) {
-    return IsResourceTypeFrame(type) || type == RESOURCE_TYPE_SHARED_WORKER;
-  }
-
-  // A helper for creating a do-nothing status callback.
-  static void NoOpStatusCallback(ServiceWorkerStatusCode status) {}
-
-  // Returns true if |scope| matches |url|.
-  CONTENT_EXPORT static bool ScopeMatches(const GURL& scope, const GURL& url);
-
-  // Returns true if the script at |script_url| is allowed to control |scope|
-  // according to Service Worker's path restriction policy. If
-  // |service_worker_allowed| is not null, it points to the
-  // Service-Worker-Allowed header value.
-  CONTENT_EXPORT static bool IsPathRestrictionSatisfied(
-      const GURL& scope,
-      const GURL& script_url,
-      const std::string* service_worker_allowed_header_value,
-      std::string* error_message);
-
-  static bool ContainsDisallowedCharacter(const GURL& scope,
-                                          const GURL& script_url,
-                                          std::string* error_message);
-};
-
-class CONTENT_EXPORT LongestScopeMatcher {
- public:
-  explicit LongestScopeMatcher(const GURL& url) : url_(url) {}
-  virtual ~LongestScopeMatcher() {}
-
-  // Returns true if |scope| matches |url_| longer than |match_|.
-  bool MatchLongest(const GURL& scope);
-
- private:
-  const GURL url_;
-  GURL match_;
-
-  DISALLOW_COPY_AND_ASSIGN(LongestScopeMatcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UTILS_H_