src/chrome/renderer/extensions/renderer_permissions_policy_delegate.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 "chrome/renderer/extensions/renderer_permissions_policy_delegate.h"
   6
   7 #include "base/command_line.h"
   8 #include "chrome/common/chrome_switches.h"
   9 #include "chrome/common/extensions/extension_constants.h"
  10 #include "chrome/renderer/extensions/dispatcher.h"
  11 #include "extensions/common/extensions_client.h"
  12 #include "extensions/common/manifest_constants.h"
  13
  14 namespace extensions {
  15
  16 namespace errors = manifest_errors;
  17
  18 RendererPermissionsPolicyDelegate::RendererPermissionsPolicyDelegate(
  19     Dispatcher* dispatcher) : dispatcher_(dispatcher) {
  20   PermissionsData::SetPolicyDelegate(this);
  21 }
  22 RendererPermissionsPolicyDelegate::~RendererPermissionsPolicyDelegate() {
  23   PermissionsData::SetPolicyDelegate(NULL);
  24 }
  25
  26 bool RendererPermissionsPolicyDelegate::CanExecuteScriptOnPage(
  27     const Extension* extension,
  28     const GURL& document_url,
  29     const GURL& top_document_url,
  30     int tab_id,
  31     const UserScript* script,
  32     int process_id,
  33     std::string* error) {
  34   const ExtensionsClient::ScriptingWhitelist& whitelist =
  35       ExtensionsClient::Get()->GetScriptingWhitelist();
  36   if (std::find(whitelist.begin(), whitelist.end(), extension->id()) !=
  37       whitelist.end()) {
  38     return true;
  39   }
  40
  41   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSigninProcess)) {
  42     if (error)
  43       *error = errors::kCannotScriptSigninPage;
  44     return false;
  45   }
  46
  47   if (dispatcher_->IsExtensionActive(extension_misc::kWebStoreAppId)) {
  48     if (error)
  49       *error = errors::kCannotScriptGallery;
  50     return false;
  51   }
  52
  53   return true;
  54 }
  55
  56 }  // namespace extensions