src/chrome/common/extensions/extension_process_policy.cc

   1 // Copyright (c) 2012 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/common/extensions/extension_process_policy.h"
   6
   7 #include "chrome/common/extensions/extension_constants.h"
   8 #include "chrome/common/extensions/manifest_handlers/app_isolation_info.h"
   9 #include "extensions/common/constants.h"
  10 #include "extensions/common/extension.h"
  11 #include "extensions/common/extension_set.h"
  12
  13 namespace extensions {
  14
  15 const extensions::Extension* GetNonBookmarkAppExtension(
  16     const ExtensionSet& extensions, const GURL& url) {
  17   // Exclude bookmark apps, which do not use the app process model.
  18   const extensions::Extension* extension =
  19       extensions.GetExtensionOrAppByURL(url);
  20   if (extension && extension->from_bookmark())
  21     extension = NULL;
  22   return extension;
  23 }
  24
  25 bool CrossesExtensionProcessBoundary(
  26     const ExtensionSet& extensions,
  27     const GURL& old_url,
  28     const GURL& new_url,
  29     bool should_consider_workaround) {
  30   const extensions::Extension* old_url_extension = GetNonBookmarkAppExtension(
  31       extensions,
  32       old_url);
  33   const extensions::Extension* new_url_extension = GetNonBookmarkAppExtension(
  34       extensions,
  35       new_url);
  36
  37   // TODO(creis): Temporary workaround for crbug.com/59285: Do not swap process
  38   // to navigate from a hosted app to a normal page or another hosted app
  39   // (unless either is the web store).  This is because some OAuth providers
  40   // use non-app popups that communicate with non-app iframes inside the app
  41   // (e.g., Facebook).  This would require out-of-process iframes to support.
  42   // See http://crbug.com/99379.
  43   // Note that we skip this exception for isolated apps, which require strict
  44   // process separation from non-app pages.
  45   if (should_consider_workaround) {
  46     bool old_url_is_hosted_app = old_url_extension &&
  47         !old_url_extension->web_extent().is_empty() &&
  48         !AppIsolationInfo::HasIsolatedStorage(old_url_extension);
  49     bool new_url_is_normal_or_hosted = !new_url_extension ||
  50         (!new_url_extension->web_extent().is_empty() &&
  51          !AppIsolationInfo::HasIsolatedStorage(new_url_extension));
  52     bool either_is_web_store =
  53         (old_url_extension &&
  54         old_url_extension->id() == extensions::kWebStoreAppId) ||
  55         (new_url_extension &&
  56         new_url_extension->id() == extensions::kWebStoreAppId);
  57     if (old_url_is_hosted_app &&
  58         new_url_is_normal_or_hosted &&
  59         !either_is_web_store)
  60       return false;
  61   }
  62
  63   return old_url_extension != new_url_extension;
  64 }
  65
  66 }  // namespace extensions