chrome/common/extensions/sync_helper.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/common/extensions/sync_helper.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/common/extensions/api/plugins/plugins_handler.h"
   9 #include "chrome/common/extensions/extension_constants.h"
  10 #include "chrome/common/extensions/manifest_url_handler.h"
  11 #include "extensions/common/extension.h"
  12 #include "extensions/common/manifest.h"
  13
  14 namespace extensions {
  15 namespace sync_helper {
  16
  17 namespace {
  18
  19 enum SyncType {
  20   SYNC_TYPE_NONE = 0,
  21   SYNC_TYPE_EXTENSION,
  22   SYNC_TYPE_APP
  23 };
  24
  25 SyncType GetSyncType(const Extension* extension) {
  26   if (!IsSyncable(extension)) {
  27     // We have a non-standard location.
  28     return SYNC_TYPE_NONE;
  29   }
  30
  31   // Disallow extensions with non-gallery auto-update URLs for now.
  32   //
  33   // TODO(akalin): Relax this restriction once we've put in UI to
  34   // approve synced extensions.
  35   if (!ManifestURL::GetUpdateURL(extension).is_empty() &&
  36       !ManifestURL::UpdatesFromGallery(extension)) {
  37     return SYNC_TYPE_NONE;
  38   }
  39
  40   // Disallow extensions with native code plugins.
  41   //
  42   // TODO(akalin): Relax this restriction once we've put in UI to
  43   // approve synced extensions.
  44   if (PluginInfo::HasPlugins(extension) ||
  45       extension->HasAPIPermission(APIPermission::kPlugin)) {
  46     return SYNC_TYPE_NONE;
  47   }
  48
  49   switch (extension->GetType()) {
  50     case Manifest::TYPE_EXTENSION:
  51       return SYNC_TYPE_EXTENSION;
  52
  53     case Manifest::TYPE_USER_SCRIPT:
  54       // We only want to sync user scripts with gallery update URLs.
  55       if (ManifestURL::UpdatesFromGallery(extension))
  56         return SYNC_TYPE_EXTENSION;
  57       return SYNC_TYPE_NONE;
  58
  59     case Manifest::TYPE_HOSTED_APP:
  60     case Manifest::TYPE_LEGACY_PACKAGED_APP:
  61     case Manifest::TYPE_PLATFORM_APP:
  62       return SYNC_TYPE_APP;
  63
  64     case Manifest::TYPE_UNKNOWN:
  65     // Confusingly, themes are actually synced.
  66     // TODO(yoz): Make this look less inconsistent.
  67     case Manifest::TYPE_THEME:
  68     case Manifest::TYPE_SHARED_MODULE:
  69       return SYNC_TYPE_NONE;
  70   }
  71   NOTREACHED();
  72   return SYNC_TYPE_NONE;
  73 }
  74
  75 }  // namespace
  76
  77 bool IsSyncable(const Extension* extension) {
  78   // TODO(akalin): Figure out if we need to allow some other types.
  79
  80   // Default apps are not synced because otherwise they will pollute profiles
  81   // that don't already have them. Specially, if a user doesn't have default
  82   // apps, creates a new profile (which get default apps) and then enables sync
  83   // for it, then their profile everywhere gets the default apps.
  84   bool is_syncable = (extension->location() == Manifest::INTERNAL &&
  85                       !extension->was_installed_by_default() &&
  86                       !extension->is_ephemeral());
  87   // Sync the chrome web store to maintain its position on the new tab page.
  88   is_syncable |= (extension->id() == extension_misc::kWebStoreAppId);
  89   // Sync the chrome component app to maintain its position on the app list.
  90   is_syncable |= (extension->id() == extension_misc::kChromeAppId);
  91   return is_syncable;
  92 }
  93
  94 bool IsSyncableExtension(const Extension* extension) {
  95   return GetSyncType(extension) == SYNC_TYPE_EXTENSION;
  96 }
  97
  98 bool IsSyncableApp(const Extension* extension) {
  99   return GetSyncType(extension) == SYNC_TYPE_APP;
 100 }
 101
 102 }  // namespace sync_helper
 103 }  // namespace extensions