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 "extensions/common/constants.h"
  11 #include "extensions/common/extensions_client.h"
  12 #include "extensions/common/manifest_constants.h"
  13 #include "extensions/common/switches.h"
  14 #include "extensions/renderer/dispatcher.h"
  15
  16 namespace extensions {
  17
  18 namespace errors = manifest_errors;
  19
  20 RendererPermissionsPolicyDelegate::RendererPermissionsPolicyDelegate(
  21     Dispatcher* dispatcher) : dispatcher_(dispatcher) {
  22   PermissionsData::SetPolicyDelegate(this);
  23 }
  24 RendererPermissionsPolicyDelegate::~RendererPermissionsPolicyDelegate() {
  25   PermissionsData::SetPolicyDelegate(NULL);
  26 }
  27
  28 bool RendererPermissionsPolicyDelegate::CanExecuteScriptOnPage(
  29     const Extension* extension,
  30     const GURL& document_url,
  31     const GURL& top_document_url,
  32     int tab_id,
  33     int process_id,
  34     std::string* error) {
  35   const ExtensionsClient::ScriptingWhitelist& whitelist =
  36       ExtensionsClient::Get()->GetScriptingWhitelist();
  37   if (std::find(whitelist.begin(), whitelist.end(), extension->id()) !=
  38       whitelist.end()) {
  39     return true;
  40   }
  41
  42   CommandLine* command_line = CommandLine::ForCurrentProcess();
  43   if (command_line->HasSwitch(::switches::kSigninProcess)) {
  44     if (error)
  45       *error = errors::kCannotScriptSigninPage;
  46     return false;
  47   }
  48
  49 // TODO(thestig): Remove scaffolding once this file no longer builds with
  50 // extensions disabled.
  51 #if defined(ENABLE_EXTENSIONS)
  52   if (dispatcher_->IsExtensionActive(extensions::kWebStoreAppId)) {
  53     if (error)
  54       *error = errors::kCannotScriptGallery;
  55     return false;
  56   }
  57 #endif
  58
  59   return true;
  60 }
  61
  62 }  // namespace extensions