chrome/browser/extensions/chrome_extension_web_contents_observer.cc

   1 // Copyright 2014 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/browser/extensions/chrome_extension_web_contents_observer.h"
   6
   7 #include "chrome/browser/extensions/api/messaging/message_service.h"
   8 #include "chrome/browser/extensions/error_console/error_console.h"
   9 #include "chrome/browser/extensions/extension_service.h"
  10 #include "chrome/common/render_messages.h"
  11 #include "content/public/browser/browser_context.h"
  12 #include "content/public/browser/render_process_host.h"
  13 #include "content/public/browser/render_view_host.h"
  14 #include "extensions/browser/extension_registry.h"
  15 #include "extensions/browser/extension_system.h"
  16 #include "extensions/common/api/messaging/message.h"
  17 #include "extensions/common/extension_messages.h"
  18 #include "extensions/common/extension_urls.h"
  19
  20 using content::BrowserContext;
  21
  22 DEFINE_WEB_CONTENTS_USER_DATA_KEY(
  23     extensions::ChromeExtensionWebContentsObserver);
  24
  25 namespace extensions {
  26
  27 ChromeExtensionWebContentsObserver::ChromeExtensionWebContentsObserver(
  28     content::WebContents* web_contents)
  29     : ExtensionWebContentsObserver(web_contents) {}
  30
  31 ChromeExtensionWebContentsObserver::~ChromeExtensionWebContentsObserver() {}
  32
  33 void ChromeExtensionWebContentsObserver::RenderViewCreated(
  34     content::RenderViewHost* render_view_host) {
  35   ReloadIfTerminated(render_view_host);
  36   ExtensionWebContentsObserver::RenderViewCreated(render_view_host);
  37 }
  38
  39 bool ChromeExtensionWebContentsObserver::OnMessageReceived(
  40     const IPC::Message& message) {
  41   bool handled = true;
  42   IPC_BEGIN_MESSAGE_MAP(ChromeExtensionWebContentsObserver, message)
  43     IPC_MESSAGE_HANDLER(ExtensionHostMsg_PostMessage, OnPostMessage)
  44     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_DetailedConsoleMessageAdded,
  45                         OnDetailedConsoleMessageAdded)
  46     IPC_MESSAGE_UNHANDLED(handled = false)
  47   IPC_END_MESSAGE_MAP()
  48   return handled;
  49 }
  50
  51 void ChromeExtensionWebContentsObserver::OnDetailedConsoleMessageAdded(
  52     const base::string16& message,
  53     const base::string16& source,
  54     const StackTrace& stack_trace,
  55     int32 severity_level) {
  56   if (!IsSourceFromAnExtension(source))
  57     return;
  58
  59   content::RenderViewHost* render_view_host =
  60       web_contents()->GetRenderViewHost();
  61   std::string extension_id = GetExtensionId(render_view_host);
  62   if (extension_id.empty())
  63     extension_id = GURL(source).host();
  64
  65   ExtensionSystem::Get(browser_context())->error_console()->ReportError(
  66       scoped_ptr<ExtensionError>(
  67           new RuntimeError(extension_id,
  68                            browser_context()->IsOffTheRecord(),
  69                            source,
  70                            message,
  71                            stack_trace,
  72                            web_contents()->GetLastCommittedURL(),
  73                            static_cast<logging::LogSeverity>(severity_level),
  74                            render_view_host->GetRoutingID(),
  75                            render_view_host->GetProcess()->GetID())));
  76 }
  77
  78 void ChromeExtensionWebContentsObserver::OnPostMessage(int port_id,
  79                                                        const Message& message) {
  80   MessageService* message_service = MessageService::Get(browser_context());
  81   if (message_service) {
  82     message_service->PostMessage(port_id, message);
  83   }
  84 }
  85
  86 void ChromeExtensionWebContentsObserver::ReloadIfTerminated(
  87     content::RenderViewHost* render_view_host) {
  88   std::string extension_id = GetExtensionId(render_view_host);
  89   if (extension_id.empty())
  90     return;
  91
  92   ExtensionRegistry* registry = ExtensionRegistry::Get(browser_context());
  93
  94   // Reload the extension if it has crashed.
  95   // TODO(yoz): This reload doesn't happen synchronously for unpacked
  96   //            extensions. It seems to be fast enough, but there is a race.
  97   //            We should delay loading until the extension has reloaded.
  98   if (registry->GetExtensionById(extension_id, ExtensionRegistry::TERMINATED)) {
  99     ExtensionSystem::Get(browser_context())->
 100         extension_service()->ReloadExtension(extension_id);
 101   }
 102 }
 103
 104 }  // namespace extensions