extensions/shell/common/shell_extensions_client.cc

   1 // Copyright 2014 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 "extensions/shell/common/shell_extensions_client.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/logging.h"
   9 #include "extensions/common/api/generated_schemas.h"
  10 #include "extensions/common/common_manifest_handlers.h"
  11 #include "extensions/common/extension_urls.h"
  12 #include "extensions/common/features/api_feature.h"
  13 #include "extensions/common/features/base_feature_provider.h"
  14 #include "extensions/common/features/behavior_feature.h"
  15 #include "extensions/common/features/json_feature_provider_source.h"
  16 #include "extensions/common/features/manifest_feature.h"
  17 #include "extensions/common/features/permission_feature.h"
  18 #include "extensions/common/features/simple_feature.h"
  19 #include "extensions/common/manifest_handler.h"
  20 #include "extensions/common/permissions/permission_message_provider.h"
  21 #include "extensions/common/permissions/permissions_info.h"
  22 #include "extensions/common/permissions/permissions_provider.h"
  23 #include "extensions/common/url_pattern_set.h"
  24 #include "extensions/shell/common/api/generated_schemas.h"
  25 #include "grit/app_shell_resources.h"
  26 #include "grit/extensions_resources.h"
  27
  28 namespace extensions {
  29
  30 namespace {
  31
  32 template <class FeatureClass>
  33 SimpleFeature* CreateFeature() {
  34   return new FeatureClass;
  35 }
  36
  37 // TODO(jamescook): Refactor ChromePermissionsMessageProvider so we can share
  38 // code. For now, this implementation does nothing.
  39 class ShellPermissionMessageProvider : public PermissionMessageProvider {
  40  public:
  41   ShellPermissionMessageProvider() {}
  42   ~ShellPermissionMessageProvider() override {}
  43
  44   // PermissionMessageProvider implementation.
  45   CoalescedPermissionMessages GetCoalescedPermissionMessages(
  46       const PermissionIDSet& permissions) const override {
  47     return CoalescedPermissionMessages();
  48   }
  49
  50   bool IsPrivilegeIncrease(const PermissionSet* old_permissions,
  51                            const PermissionSet* new_permissions,
  52                            Manifest::Type extension_type) const override {
  53     // Ensure we implement this before shipping.
  54     CHECK(false);
  55     return false;
  56   }
  57
  58   PermissionIDSet GetAllPermissionIDs(
  59       const PermissionSet* permissions,
  60       Manifest::Type extension_type) const override {
  61     return PermissionIDSet();
  62   }
  63
  64  private:
  65   DISALLOW_COPY_AND_ASSIGN(ShellPermissionMessageProvider);
  66 };
  67
  68 base::LazyInstance<ShellPermissionMessageProvider>
  69     g_permission_message_provider = LAZY_INSTANCE_INITIALIZER;
  70
  71 }  // namespace
  72
  73 ShellExtensionsClient::ShellExtensionsClient()
  74     : extensions_api_permissions_(ExtensionsAPIPermissions()) {
  75 }
  76
  77 ShellExtensionsClient::~ShellExtensionsClient() {
  78 }
  79
  80 void ShellExtensionsClient::Initialize() {
  81   RegisterCommonManifestHandlers();
  82   ManifestHandler::FinalizeRegistration();
  83   // TODO(jamescook): Do we need to whitelist any extensions?
  84
  85   PermissionsInfo::GetInstance()->AddProvider(extensions_api_permissions_);
  86 }
  87
  88 const PermissionMessageProvider&
  89 ShellExtensionsClient::GetPermissionMessageProvider() const {
  90   NOTIMPLEMENTED();
  91   return g_permission_message_provider.Get();
  92 }
  93
  94 const std::string ShellExtensionsClient::GetProductName() {
  95   return "app_shell";
  96 }
  97
  98 scoped_ptr<FeatureProvider> ShellExtensionsClient::CreateFeatureProvider(
  99     const std::string& name) const {
 100   scoped_ptr<FeatureProvider> provider;
 101   scoped_ptr<JSONFeatureProviderSource> source(
 102       CreateFeatureProviderSource(name));
 103   if (name == "api") {
 104     provider.reset(new BaseFeatureProvider(source->dictionary(),
 105                                            CreateFeature<APIFeature>));
 106   } else if (name == "manifest") {
 107     provider.reset(new BaseFeatureProvider(source->dictionary(),
 108                                            CreateFeature<ManifestFeature>));
 109   } else if (name == "permission") {
 110     provider.reset(new BaseFeatureProvider(source->dictionary(),
 111                                            CreateFeature<PermissionFeature>));
 112   } else if (name == "behavior") {
 113     provider.reset(new BaseFeatureProvider(source->dictionary(),
 114                                            CreateFeature<BehaviorFeature>));
 115   } else {
 116     NOTREACHED();
 117   }
 118   return provider.Pass();
 119 }
 120
 121 scoped_ptr<JSONFeatureProviderSource>
 122 ShellExtensionsClient::CreateFeatureProviderSource(
 123     const std::string& name) const {
 124   scoped_ptr<JSONFeatureProviderSource> source(
 125       new JSONFeatureProviderSource(name));
 126   if (name == "api") {
 127     source->LoadJSON(IDR_EXTENSION_API_FEATURES);
 128     source->LoadJSON(IDR_SHELL_EXTENSION_API_FEATURES);
 129   } else if (name == "manifest") {
 130     source->LoadJSON(IDR_EXTENSION_MANIFEST_FEATURES);
 131   } else if (name == "permission") {
 132     source->LoadJSON(IDR_EXTENSION_PERMISSION_FEATURES);
 133   } else if (name == "behavior") {
 134     source->LoadJSON(IDR_EXTENSION_BEHAVIOR_FEATURES);
 135   } else {
 136     NOTREACHED();
 137     source.reset();
 138   }
 139   return source.Pass();
 140 }
 141
 142 void ShellExtensionsClient::FilterHostPermissions(
 143     const URLPatternSet& hosts,
 144     URLPatternSet* new_hosts,
 145     std::set<PermissionMessage>* messages) const {
 146   NOTIMPLEMENTED();
 147 }
 148
 149 void ShellExtensionsClient::FilterHostPermissions(
 150     const URLPatternSet& hosts,
 151     URLPatternSet* new_hosts,
 152     PermissionIDSet* permissions) const {
 153   NOTIMPLEMENTED();
 154 }
 155
 156 void ShellExtensionsClient::SetScriptingWhitelist(
 157     const ScriptingWhitelist& whitelist) {
 158   scripting_whitelist_ = whitelist;
 159 }
 160
 161 const ExtensionsClient::ScriptingWhitelist&
 162 ShellExtensionsClient::GetScriptingWhitelist() const {
 163   // TODO(jamescook): Real whitelist.
 164   return scripting_whitelist_;
 165 }
 166
 167 URLPatternSet ShellExtensionsClient::GetPermittedChromeSchemeHosts(
 168     const Extension* extension,
 169     const APIPermissionSet& api_permissions) const {
 170   NOTIMPLEMENTED();
 171   return URLPatternSet();
 172 }
 173
 174 bool ShellExtensionsClient::IsScriptableURL(const GURL& url,
 175                                             std::string* error) const {
 176   NOTIMPLEMENTED();
 177   return true;
 178 }
 179
 180 bool ShellExtensionsClient::IsAPISchemaGenerated(
 181     const std::string& name) const {
 182   return api::GeneratedSchemas::IsGenerated(name) ||
 183          shell::api::ShellGeneratedSchemas::IsGenerated(name);
 184 }
 185
 186 base::StringPiece ShellExtensionsClient::GetAPISchema(
 187     const std::string& name) const {
 188   // Schema for app_shell-only APIs.
 189   if (shell::api::ShellGeneratedSchemas::IsGenerated(name))
 190     return shell::api::ShellGeneratedSchemas::Get(name);
 191
 192   // Core extensions APIs.
 193   return api::GeneratedSchemas::Get(name);
 194 }
 195
 196 void ShellExtensionsClient::RegisterAPISchemaResources(
 197     ExtensionAPI* api) const {
 198 }
 199
 200 bool ShellExtensionsClient::ShouldSuppressFatalErrors() const {
 201   return true;
 202 }
 203
 204 void ShellExtensionsClient::RecordDidSuppressFatalError() {
 205 }
 206
 207 std::string ShellExtensionsClient::GetWebstoreBaseURL() const {
 208   return extension_urls::kChromeWebstoreBaseURL;
 209 }
 210
 211 std::string ShellExtensionsClient::GetWebstoreUpdateURL() const {
 212   return extension_urls::kChromeWebstoreUpdateURL;
 213 }
 214
 215 bool ShellExtensionsClient::IsBlacklistUpdateURL(const GURL& url) const {
 216   // TODO(rockot): Maybe we want to do something else here. For now we accept
 217   // any URL as a blacklist URL because we don't really care.
 218   return true;
 219 }
 220
 221 }  // namespace extensions