chrome/browser/bookmarks/enhanced_bookmarks_features.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/browser/bookmarks/enhanced_bookmarks_features.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/metrics/field_trial.h"
   9 #include "base/sha1.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "chrome/common/chrome_switches.h"
  12 #include "components/variations/variations_associated_data.h"
  13 #include "extensions/common/features/feature.h"
  14 #include "extensions/common/features/feature_provider.h"
  15
  16 namespace {
  17
  18 const char kFieldTrialName[] = "EnhancedBookmarks";
  19
  20 bool IsBookmarksExtensionHash(const std::string& sha1_hex) {
  21     return sha1_hex == "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2" ||
  22            sha1_hex == "D57DE394F36DC1C3220E7604C575D29C51A6C495";
  23 }
  24
  25 };  // namespace
  26
  27 bool IsBookmarksExtensionInstalled(
  28     const extensions::ExtensionIdSet& extension_ids) {
  29   // Compare installed extension ids with ones we expect.
  30   for (extensions::ExtensionIdSet::const_iterator iter = extension_ids.begin();
  31        iter != extension_ids.end(); ++iter) {
  32     const std::string id_hash = base::SHA1HashString(*iter);
  33     DCHECK_EQ(id_hash.length(), base::kSHA1Length);
  34     std::string hash = base::HexEncode(id_hash.c_str(), id_hash.length());
  35
  36     if (IsBookmarksExtensionHash(hash))
  37       return true;
  38   }
  39   return false;
  40 }
  41
  42 bool OptInIntoBookmarksExperiment() {
  43   if (base::FieldTrialList::FindFullName(kFieldTrialName) != "Default")
  44     return false;
  45
  46   // Opt-in user into Finch group.
  47   CommandLine* command_line = CommandLine::ForCurrentProcess();
  48   command_line->AppendSwitch(switches::kManualEnhancedBookmarks);
  49   return true;
  50 }
  51
  52 bool IsEnhancedBookmarksExperimentEnabled() {
  53   std::string ext_id = GetEnhancedBookmarksExtensionIdFromFinch();
  54   extensions::FeatureProvider* feature_provider =
  55       extensions::FeatureProvider::GetPermissionFeatures();
  56   extensions::Feature* feature = feature_provider->GetFeature("metricsPrivate");
  57   return feature && feature->IsIdInWhitelist(ext_id);
  58 }
  59
  60 bool IsEnableDomDistillerSet() {
  61   if (CommandLine::ForCurrentProcess()->
  62       HasSwitch(switches::kEnableDomDistiller)) {
  63     return true;
  64   }
  65   if (chrome_variations::GetVariationParamValue(
  66           kFieldTrialName, "enable-dom-distiller") == "1")
  67     return true;
  68
  69   return false;
  70 }
  71
  72 bool IsEnableSyncArticlesSet() {
  73   if (CommandLine::ForCurrentProcess()->
  74       HasSwitch(switches::kEnableSyncArticles)) {
  75     return true;
  76   }
  77   if (chrome_variations::GetVariationParamValue(
  78           kFieldTrialName, "enable-sync-articles") == "1")
  79     return true;
  80
  81   return false;
  82 }
  83
  84 std::string GetEnhancedBookmarksExtensionIdFromFinch() {
  85   return chrome_variations::GetVariationParamValue(kFieldTrialName, "id");
  86 }