src/apps/shell/common/shell_extensions_client.cc

   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 #include "apps/shell/common/shell_extensions_client.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/common/extensions/features/base_feature_provider.h"
   9 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
  10 #include "extensions/common/common_manifest_handlers.h"
  11 #include "extensions/common/manifest_handler.h"
  12 #include "extensions/common/permissions/permission_message_provider.h"
  13 #include "extensions/common/permissions/permissions_provider.h"
  14 #include "extensions/common/url_pattern_set.h"
  15
  16 using extensions::APIPermissionInfo;
  17 using extensions::APIPermissionSet;
  18 using extensions::Extension;
  19 using extensions::Manifest;
  20 using extensions::PermissionMessage;
  21 using extensions::PermissionMessages;
  22 using extensions::PermissionSet;
  23 using extensions::URLPatternSet;
  24
  25 namespace apps {
  26
  27 namespace {
  28
  29 // TODO(jamescook): Refactor ChromePermissionsMessageProvider so we can share
  30 // code.
  31 class ShellPermissionMessageProvider
  32     : public extensions::PermissionMessageProvider {
  33  public:
  34   ShellPermissionMessageProvider() {}
  35   virtual ~ShellPermissionMessageProvider() {}
  36
  37   // PermissionMessageProvider implementation.
  38   virtual PermissionMessages GetPermissionMessages(
  39       const PermissionSet* permissions,
  40       Manifest::Type extension_type) const OVERRIDE {
  41     return PermissionMessages();
  42   }
  43
  44   virtual std::vector<base::string16> GetWarningMessages(
  45       const PermissionSet* permissions,
  46       Manifest::Type extension_type) const OVERRIDE {
  47     return std::vector<base::string16>();
  48   }
  49
  50   virtual std::vector<base::string16> GetWarningMessagesDetails(
  51       const PermissionSet* permissions,
  52       Manifest::Type extension_type) const OVERRIDE {
  53     return std::vector<base::string16>();
  54   }
  55
  56   virtual bool IsPrivilegeIncrease(
  57       const PermissionSet* old_permissions,
  58       const PermissionSet* new_permissions,
  59       Manifest::Type extension_type) const OVERRIDE {
  60     // Ensure we implement this before shipping.
  61     CHECK(false);
  62     return false;
  63   }
  64
  65  private:
  66   DISALLOW_COPY_AND_ASSIGN(ShellPermissionMessageProvider);
  67 };
  68
  69 }  // namespace
  70
  71 ShellExtensionsClient::ShellExtensionsClient() {
  72 }
  73
  74 ShellExtensionsClient::~ShellExtensionsClient() {
  75 }
  76
  77 void ShellExtensionsClient::Initialize() {
  78   extensions::RegisterCommonManifestHandlers();
  79   extensions::ManifestHandler::FinalizeRegistration();
  80
  81   // TODO(jamescook): Do we need to whitelist any extensions?
  82 }
  83
  84 const extensions::PermissionsProvider&
  85 ShellExtensionsClient::GetPermissionsProvider() const {
  86   // TODO(jamescook): app_shell needs a way to use a subset of the Chrome
  87   // extension Features and Permissions. In particular, the lists of Features
  88   // (including API features, manifest features and permission features) are
  89   // listed in JSON files from c/c/e/api that are included into Chrome's
  90   // resources.pak (_api_features.json and _permission_features.json). The
  91   // PermissionsProvider must match the set of permissions used by the features
  92   // in those files.  We either need to make app_shell (and hence the extensions
  93   // module) know about all possible permissions, or create a mechanism whereby
  94   // we can build our own JSON files with only a subset of the data. For now,
  95   // just provide all permissions Chrome knows about. Fixing this issue is
  96   // http://crbug.com/339301
  97   static extensions::ChromeAPIPermissions provider;
  98   return provider;
  99 }
 100
 101 const extensions::PermissionMessageProvider&
 102 ShellExtensionsClient::GetPermissionMessageProvider() const {
 103   NOTIMPLEMENTED();
 104   static ShellPermissionMessageProvider provider;
 105   return provider;
 106 }
 107
 108 extensions::FeatureProvider* ShellExtensionsClient::GetFeatureProviderByName(
 109     const std::string& name) const {
 110   // TODO(jamescook): Factor out an extensions module feature provider.
 111   return extensions::BaseFeatureProvider::GetByName(name);
 112 }
 113
 114 void ShellExtensionsClient::FilterHostPermissions(
 115     const URLPatternSet& hosts,
 116     URLPatternSet* new_hosts,
 117     std::set<PermissionMessage>* messages) const {
 118   NOTIMPLEMENTED();
 119 }
 120
 121 void ShellExtensionsClient::SetScriptingWhitelist(
 122     const ScriptingWhitelist& whitelist) {
 123   scripting_whitelist_ = whitelist;
 124 }
 125
 126 const extensions::ExtensionsClient::ScriptingWhitelist&
 127 ShellExtensionsClient::GetScriptingWhitelist() const {
 128   // TODO(jamescook): Real whitelist.
 129   return scripting_whitelist_;
 130 }
 131
 132 URLPatternSet ShellExtensionsClient::GetPermittedChromeSchemeHosts(
 133     const Extension* extension,
 134     const APIPermissionSet& api_permissions) const {
 135   NOTIMPLEMENTED();
 136   return URLPatternSet();
 137 }
 138
 139 bool ShellExtensionsClient::IsScriptableURL(const GURL& url,
 140                                             std::string* error) const {
 141   NOTIMPLEMENTED();
 142   return true;
 143 }
 144
 145 }  // namespace apps