root/apps/shell/common/shell_extensions_client.cc

DEFINITIONS

1. GetPermissionMessages
2. GetWarningMessages
3. GetWarningMessagesDetails
4. IsPrivilegeIncrease
5. Initialize
6. GetPermissionsProvider
7. GetPermissionMessageProvider
8. GetFeatureProviderByName
9. FilterHostPermissions
10. SetScriptingWhitelist
11. GetScriptingWhitelist
12. GetPermittedChromeSchemeHosts
13. IsScriptableURL
14. IsAPISchemaGenerated
15. GetAPISchema
16. AddExtraFeatureFilters

// Copyright 2013 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.

#include "apps/shell/common/shell_extensions_client.h"

#include "apps/common/api/generated_schemas.h"
#include "base/logging.h"
#include "chrome/common/extensions/api/generated_schemas.h"
#include "chrome/common/extensions/permissions/chrome_api_permissions.h"
#include "extensions/common/api/generated_schemas.h"
#include "extensions/common/api/sockets/sockets_manifest_handler.h"
#include "extensions/common/common_manifest_handlers.h"
#include "extensions/common/features/base_feature_provider.h"
#include "extensions/common/manifest_handler.h"
#include "extensions/common/permissions/permission_message_provider.h"
#include "extensions/common/permissions/permissions_provider.h"
#include "extensions/common/url_pattern_set.h"

using extensions::APIPermissionInfo;
using extensions::APIPermissionSet;
using extensions::Extension;
using extensions::Manifest;
using extensions::PermissionMessage;
using extensions::PermissionMessages;
using extensions::PermissionSet;
using extensions::URLPatternSet;

namespace apps {

namespace {

// TODO(jamescook): Refactor ChromePermissionsMessageProvider so we can share
// code.
class ShellPermissionMessageProvider
    : public extensions::PermissionMessageProvider {
 public:
  ShellPermissionMessageProvider() {}
  virtual ~ShellPermissionMessageProvider() {}

  // PermissionMessageProvider implementation.
  virtual PermissionMessages GetPermissionMessages(
      const PermissionSet* permissions,
      Manifest::Type extension_type) const OVERRIDE {
    return PermissionMessages();
  }

  virtual std::vector<base::string16> GetWarningMessages(
      const PermissionSet* permissions,
      Manifest::Type extension_type) const OVERRIDE {
    return std::vector<base::string16>();
  }

  virtual std::vector<base::string16> GetWarningMessagesDetails(
      const PermissionSet* permissions,
      Manifest::Type extension_type) const OVERRIDE {
    return std::vector<base::string16>();
  }

  virtual bool IsPrivilegeIncrease(
      const PermissionSet* old_permissions,
      const PermissionSet* new_permissions,
      Manifest::Type extension_type) const OVERRIDE {
    // Ensure we implement this before shipping.
    CHECK(false);
    return false;
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(ShellPermissionMessageProvider);
};

}  // namespace

ShellExtensionsClient::ShellExtensionsClient() {
}

ShellExtensionsClient::~ShellExtensionsClient() {
}

void ShellExtensionsClient::Initialize() {
  extensions::RegisterCommonManifestHandlers();

  // TODO(rockot): API manifest handlers which move out to src/extensions
  // should either end up in RegisterCommonManifestHandlers or some new
  // initialization step specifically for API manifest handlers.
  (new extensions::SocketsManifestHandler)->Register();

  extensions::ManifestHandler::FinalizeRegistration();
  // TODO(jamescook): Do we need to whitelist any extensions?
}

const extensions::PermissionsProvider&
ShellExtensionsClient::GetPermissionsProvider() const {
  // TODO(jamescook): app_shell needs a way to use a subset of the Chrome
  // extension Features and Permissions. In particular, the lists of Features
  // (including API features, manifest features and permission features) are
  // listed in JSON files from c/c/e/api that are included into Chrome's
  // resources.pak (_api_features.json and _permission_features.json). The
  // PermissionsProvider must match the set of permissions used by the features
  // in those files.  We either need to make app_shell (and hence the extensions
  // module) know about all possible permissions, or create a mechanism whereby
  // we can build our own JSON files with only a subset of the data. For now,
  // just provide all permissions Chrome knows about. Fixing this issue is
  // http://crbug.com/339301
  static extensions::ChromeAPIPermissions provider;
  return provider;
}

const extensions::PermissionMessageProvider&
ShellExtensionsClient::GetPermissionMessageProvider() const {
  NOTIMPLEMENTED();
  static ShellPermissionMessageProvider provider;
  return provider;
}

extensions::FeatureProvider* ShellExtensionsClient::GetFeatureProviderByName(
    const std::string& name) const {
  // TODO(jamescook): Factor out an extensions module feature provider.
  return extensions::BaseFeatureProvider::GetByName(name);
}

void ShellExtensionsClient::FilterHostPermissions(
    const URLPatternSet& hosts,
    URLPatternSet* new_hosts,
    std::set<PermissionMessage>* messages) const {
  NOTIMPLEMENTED();
}

void ShellExtensionsClient::SetScriptingWhitelist(
    const ScriptingWhitelist& whitelist) {
  scripting_whitelist_ = whitelist;
}

const extensions::ExtensionsClient::ScriptingWhitelist&
ShellExtensionsClient::GetScriptingWhitelist() const {
  // TODO(jamescook): Real whitelist.
  return scripting_whitelist_;
}

URLPatternSet ShellExtensionsClient::GetPermittedChromeSchemeHosts(
    const Extension* extension,
    const APIPermissionSet& api_permissions) const {
  NOTIMPLEMENTED();
  return URLPatternSet();
}

bool ShellExtensionsClient::IsScriptableURL(const GURL& url,
                                            std::string* error) const {
  NOTIMPLEMENTED();
  return true;
}

bool ShellExtensionsClient::IsAPISchemaGenerated(
    const std::string& name) const {
  // TODO(rockot): Remove dependency on src/chrome once we have some core APIs
  // moved out. See http://crbug.com/349042.
  return extensions::api::GeneratedSchemas::IsGenerated(name) ||
         extensions::core_api::GeneratedSchemas::IsGenerated(name) ||
         apps::api::GeneratedSchemas::IsGenerated(name);
}

base::StringPiece ShellExtensionsClient::GetAPISchema(
    const std::string& name) const {
  // TODO(rockot): Remove dependency on src/chrome once we have some core APIs
  // moved out. See http://crbug.com/349042.
  if (extensions::api::GeneratedSchemas::IsGenerated(name))
    return extensions::api::GeneratedSchemas::Get(name);

  if (extensions::core_api::GeneratedSchemas::IsGenerated(name))
    return extensions::core_api::GeneratedSchemas::Get(name);

  return apps::api::GeneratedSchemas::Get(name);
}

void ShellExtensionsClient::AddExtraFeatureFilters(
    extensions::SimpleFeature* feature) const {}

}  // namespace apps