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#include "extensions/common/permissions/extensions_api_permissions.h"
15
16namespace extensions {
17
18// The implementation of ExtensionsClient for Chrome, which encapsulates the
19// global knowledge of features, permissions, and manifest fields.
20class ChromeExtensionsClient : public ExtensionsClient {
21 public:
22  ChromeExtensionsClient();
23  virtual ~ChromeExtensionsClient();
24
25  virtual void Initialize() OVERRIDE;
26
27  virtual const PermissionMessageProvider& GetPermissionMessageProvider() const
28      OVERRIDE;
29  virtual const std::string GetProductName() OVERRIDE;
30  virtual scoped_ptr<FeatureProvider> CreateFeatureProvider(
31      const std::string& name) const OVERRIDE;
32  virtual scoped_ptr<JSONFeatureProviderSource> CreateFeatureProviderSource(
33      const std::string& name) const OVERRIDE;
34  virtual void FilterHostPermissions(
35      const URLPatternSet& hosts,
36      URLPatternSet* new_hosts,
37      std::set<PermissionMessage>* messages) const OVERRIDE;
38  virtual void SetScriptingWhitelist(const ScriptingWhitelist& whitelist)
39      OVERRIDE;
40  virtual const ScriptingWhitelist& GetScriptingWhitelist() const OVERRIDE;
41  virtual URLPatternSet GetPermittedChromeSchemeHosts(
42      const Extension* extension,
43      const APIPermissionSet& api_permissions) const OVERRIDE;
44  virtual bool IsScriptableURL(const GURL& url, std::string* error) const
45      OVERRIDE;
46  virtual bool IsAPISchemaGenerated(const std::string& name) const OVERRIDE;
47  virtual base::StringPiece GetAPISchema(const std::string& name) const
48      OVERRIDE;
49  virtual void RegisterAPISchemaResources(ExtensionAPI* api) const OVERRIDE;
50  virtual bool ShouldSuppressFatalErrors() const OVERRIDE;
51  virtual std::string GetWebstoreBaseURL() const OVERRIDE;
52  virtual std::string GetWebstoreUpdateURL() const OVERRIDE;
53  virtual bool IsBlacklistUpdateURL(const GURL& url) const OVERRIDE;
54
55  // Get the LazyInstance for ChromeExtensionsClient.
56  static ChromeExtensionsClient* GetInstance();
57
58 private:
59  const ChromeAPIPermissions chrome_api_permissions_;
60  const ExtensionsAPIPermissions extensions_api_permissions_;
61  const ChromePermissionMessageProvider permission_message_provider_;
62
63  // A whitelist of extensions that can script anywhere. Do not add to this
64  // list (except in tests) without consulting the Extensions team first.
65  // Note: Component extensions have this right implicitly and do not need to be
66  // added to this list.
67  ScriptingWhitelist scripting_whitelist_;
68
69  friend struct base::DefaultLazyInstanceTraits<ChromeExtensionsClient>;
70
71  DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsClient);
72};
73
74}  // namespace extensions
75
76#endif  // CHROME_COMMON_EXTENSIONS_CHROME_EXTENSIONS_CLIENT_H_
77