extensions/browser/guest_view/extension_view/extension_view_guest.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/browser/guest_view/extension_view/extension_view_guest.h"
   6
   7 #include "components/crx_file/id_util.h"
   8 #include "components/guest_view/browser/guest_view_event.h"
   9 #include "content/public/browser/render_process_host.h"
  10 #include "content/public/common/result_codes.h"
  11 #include "extensions/browser/api/extensions_api_client.h"
  12 #include "extensions/browser/bad_message.h"
  13 #include "extensions/browser/guest_view/extension_view/extension_view_constants.h"
  14 #include "extensions/common/constants.h"
  15 #include "extensions/common/extension_messages.h"
  16 #include "extensions/strings/grit/extensions_strings.h"
  17
  18 using content::WebContents;
  19 using guest_view::GuestViewBase;
  20 using guest_view::GuestViewEvent;
  21 using namespace extensions::api;
  22
  23 namespace extensions {
  24
  25 // static
  26 const char ExtensionViewGuest::Type[] = "extensionview";
  27
  28 ExtensionViewGuest::ExtensionViewGuest(WebContents* owner_web_contents)
  29     : GuestView<ExtensionViewGuest>(owner_web_contents) {}
  30
  31 ExtensionViewGuest::~ExtensionViewGuest() {
  32 }
  33
  34 // static
  35 GuestViewBase* ExtensionViewGuest::Create(WebContents* owner_web_contents) {
  36   return new ExtensionViewGuest(owner_web_contents);
  37 }
  38
  39 bool ExtensionViewGuest::NavigateGuest(const std::string& src,
  40                                        bool force_navigation) {
  41   GURL url = extension_url_.Resolve(src);
  42
  43   // If the URL is not valid, about:blank, or the same origin as the extension,
  44   // then navigate to about:blank.
  45   bool url_not_allowed = (url != GURL(url::kAboutBlankURL)) &&
  46       (url.GetOrigin() != extension_url_.GetOrigin());
  47   if (!url.is_valid() || url_not_allowed)
  48     return NavigateGuest(url::kAboutBlankURL, true /* force_navigation */);
  49
  50   if (!force_navigation && (url_ == url))
  51     return false;
  52
  53   web_contents()->GetRenderProcessHost()->FilterURL(false, &url);
  54   web_contents()->GetController().LoadURL(url, content::Referrer(),
  55                                           ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
  56                                           std::string());
  57
  58   url_ = url;
  59   return true;
  60 }
  61
  62 // GuestViewBase implementation.
  63 bool ExtensionViewGuest::CanRunInDetachedState() const {
  64   return true;
  65 }
  66
  67 void ExtensionViewGuest::CreateWebContents(
  68     const base::DictionaryValue& create_params,
  69     const WebContentsCreatedCallback& callback) {
  70   // Gets the extension ID.
  71   std::string extension_id;
  72   create_params.GetString(extensionview::kAttributeExtension, &extension_id);
  73
  74   if (!crx_file::id_util::IdIsValid(extension_id)) {
  75     callback.Run(nullptr);
  76     return;
  77   }
  78
  79   // Gets the extension URL.
  80   extension_url_ =
  81       extensions::Extension::GetBaseURLFromExtensionId(extension_id);
  82
  83   if (!extension_url_.is_valid()) {
  84     callback.Run(nullptr);
  85     return;
  86   }
  87
  88   content::SiteInstance* view_site_instance =
  89       content::SiteInstance::CreateForURL(browser_context(),
  90                                           extension_url_);
  91
  92   WebContents::CreateParams params(browser_context(), view_site_instance);
  93   params.guest_delegate = this;
  94   callback.Run(WebContents::Create(params));
  95 }
  96
  97 void ExtensionViewGuest::DidInitialize(
  98     const base::DictionaryValue& create_params) {
  99   ExtensionsAPIClient::Get()->AttachWebContentsHelpers(web_contents());
 100
 101   ApplyAttributes(create_params);
 102 }
 103
 104 void ExtensionViewGuest::DidAttachToEmbedder() {
 105   ApplyAttributes(*attach_params());
 106 }
 107
 108 const char* ExtensionViewGuest::GetAPINamespace() const {
 109   return extensionview::kAPINamespace;
 110 }
 111
 112 int ExtensionViewGuest::GetTaskPrefix() const {
 113   return IDS_EXTENSION_TASK_MANAGER_EXTENSIONVIEW_TAG_PREFIX;
 114 }
 115
 116 void ExtensionViewGuest::DidCommitProvisionalLoadForFrame(
 117     content::RenderFrameHost* render_frame_host,
 118     const GURL& url,
 119     ui::PageTransition transition_type) {
 120   if (render_frame_host->GetParent())
 121     return;
 122
 123   url_ = url;
 124
 125   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
 126   args->SetString(guest_view::kUrl, url_.spec());
 127   DispatchEventToView(
 128       new GuestViewEvent(extensionview::kEventLoadCommit, args.Pass()));
 129 }
 130
 131 void ExtensionViewGuest::DidNavigateMainFrame(
 132     const content::LoadCommittedDetails& details,
 133     const content::FrameNavigateParams& params) {
 134   if (attached() && (params.url.GetOrigin() != url_.GetOrigin())) {
 135     bad_message::ReceivedBadMessage(web_contents()->GetRenderProcessHost(),
 136                                     bad_message::EVG_BAD_ORIGIN);
 137   }
 138 }
 139
 140 void ExtensionViewGuest::ApplyAttributes(const base::DictionaryValue& params) {
 141   std::string src;
 142   params.GetString(extensionview::kAttributeSrc, &src);
 143   NavigateGuest(src, false /* force_navigation */);
 144 }
 145
 146 }  // namespace extensions