chrome/common/extensions/chrome_extensions_client.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_
   6 #define CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/lazy_instance.h"
  11 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
  12 #include "chrome/common/extensions/permissions/chrome_permission_message_provider.h"
  13 #include "extensions/common/extensions_client.h"
  14
  15 namespace extensions {
  16
  17 // The implementation of ExtensionsClient for Chrome, which encapsulates the
  18 // global knowledge of features, permissions, and manifest fields.
  19 class ChromeExtensionsClient : public ExtensionsClient {
  20  public:
  21   ChromeExtensionsClient();
  22   virtual ~ChromeExtensionsClient();
  23
  24   virtual void Initialize() OVERRIDE;
  25
  26   virtual const PermissionsProvider& GetPermissionsProvider() const OVERRIDE;
  27   virtual const PermissionMessageProvider& GetPermissionMessageProvider() const
  28       OVERRIDE;
  29   virtual FeatureProvider* GetFeatureProviderByName(const std::string& name)
  30       const OVERRIDE;
  31   virtual void FilterHostPermissions(
  32       const URLPatternSet& hosts,
  33       URLPatternSet* new_hosts,
  34       std::set<PermissionMessage>* messages) const OVERRIDE;
  35   virtual void SetScriptingWhitelist(const ScriptingWhitelist& whitelist)
  36       OVERRIDE;
  37   virtual const ScriptingWhitelist& GetScriptingWhitelist() const OVERRIDE;
  38   virtual URLPatternSet GetPermittedChromeSchemeHosts(
  39       const Extension* extension,
  40       const APIPermissionSet& api_permissions) const OVERRIDE;
  41   virtual bool IsScriptableURL(const GURL& url, std::string* error) const
  42       OVERRIDE;
  43   // Get the LazyInstance for ChromeExtensionsClient.
  44   static ChromeExtensionsClient* GetInstance();
  45
  46  private:
  47   const ChromeAPIPermissions chrome_api_permissions_;
  48   const ChromePermissionMessageProvider permission_message_provider_;
  49
  50   // A whitelist of extensions that can script anywhere. Do not add to this
  51   // list (except in tests) without consulting the Extensions team first.
  52   // Note: Component extensions have this right implicitly and do not need to be
  53   // added to this list.
  54   ScriptingWhitelist scripting_whitelist_;
  55
  56   friend struct base::DefaultLazyInstanceTraits<ChromeExtensionsClient>;
  57
  58   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsClient);
  59 };
  60
  61 }  // namespace extensions
  62
  63 #endif  // CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_