extensions/renderer/extension_injection_host.cc

   1 // Copyright 2015 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/common/manifest_handlers/csp_info.h"
   6 #include "extensions/renderer/extension_injection_host.h"
   7
   8 namespace extensions {
   9
  10 ExtensionInjectionHost::ExtensionInjectionHost(
  11     const scoped_refptr<const Extension>& extension)
  12     : InjectionHost(HostID(HostID::EXTENSIONS, extension->id())),
  13       extension_(extension) {
  14 }
  15
  16 ExtensionInjectionHost::~ExtensionInjectionHost() {
  17 }
  18
  19 const std::string& ExtensionInjectionHost::GetContentSecurityPolicy() const {
  20   return CSPInfo::GetContentSecurityPolicy(extension_.get());
  21 }
  22
  23 const GURL& ExtensionInjectionHost::url() const {
  24   return extension_->url();
  25 }
  26
  27 const std::string& ExtensionInjectionHost::name() const {
  28   return extension_->name();
  29 }
  30
  31 PermissionsData::AccessType ExtensionInjectionHost::CanExecuteOnFrame(
  32       const GURL& document_url,
  33       const GURL& top_frame_url,
  34       int tab_id,
  35       bool is_declarative) const {
  36   // Declarative user scripts use "page access" (from "permissions" section in
  37   // manifest) whereas non-declarative user scripts use custom
  38   // "content script access" logic.
  39   if (is_declarative) {
  40     return extension_->permissions_data()->GetPageAccess(
  41         extension_.get(),
  42         document_url,
  43         top_frame_url,
  44         tab_id,
  45         -1,  // no process id
  46         nullptr /* ignore error */);
  47   } else {
  48     return extension_->permissions_data()->GetContentScriptAccess(
  49         extension_.get(),
  50         document_url,
  51         top_frame_url,
  52         tab_id,
  53         -1,  // no process id
  54         nullptr /* ignore error */);
  55   }
  56 }
  57
  58 bool ExtensionInjectionHost::ShouldNotifyBrowserOfInjection() const {
  59   // We notify the browser of any injection if the extension has no withheld
  60   // permissions (i.e., the permissions weren't restricted), but would have
  61   // otherwise been affected by the scripts-require-action feature.
  62   return extension_->permissions_data()->withheld_permissions()->IsEmpty() &&
  63          PermissionsData::ScriptsMayRequireActionForExtension(
  64              extension_.get(),
  65              extension_->permissions_data()->active_permissions().get());
  66 }
  67
  68 }  // namespace extensions