Add ICU message format support
[chromium-blink-merge.git] / chrome / installer / gcapi / gcapi_omaha_experiment.cc
blob1724b971d4a4d9804368a4ac2b68836127f8078f
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.
5 #include "chrome/installer/gcapi/gcapi_omaha_experiment.h"
7 #include "base/basictypes.h"
8 #include "base/strings/string_split.h"
9 #include "base/strings/string_util.h"
10 #include "base/strings/stringprintf.h"
11 #include "base/strings/utf_string_conversions.h"
12 #include "base/time/time.h"
13 #include "chrome/installer/gcapi/gcapi.h"
14 #include "chrome/installer/util/google_update_constants.h"
15 #include "chrome/installer/util/google_update_experiment_util.h"
16 #include "chrome/installer/util/google_update_settings.h"
18 namespace {
20 // Returns the number of weeks since 2/3/2003.
21 int GetCurrentRlzWeek(const base::Time& current_time) {
22 base::Time::Exploded february_third_2003_exploded =
23 {2003, 2, 1, 3, 0, 0, 0, 0};
24 base::Time f = base::Time::FromUTCExploded(february_third_2003_exploded);
25 base::TimeDelta delta = current_time - f;
26 return delta.InDays() / 7;
29 bool SetExperimentLabel(const wchar_t* brand_code,
30 const base::string16& label,
31 int shell_mode) {
32 if (!brand_code) {
33 return false;
36 const bool system_level = shell_mode == GCAPI_INVOKED_UAC_ELEVATION;
38 base::string16 original_labels;
39 if (!GoogleUpdateSettings::ReadExperimentLabels(system_level,
40 &original_labels)) {
41 return false;
44 // Split the original labels by the label separator.
45 std::vector<base::string16> entries = base::SplitString(
46 original_labels,
47 base::string16(1, google_update::kExperimentLabelSeparator),
48 base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
50 // Keep all labels, but the one we want to add/replace.
51 base::string16 label_and_separator(label);
52 label_and_separator.push_back('=');
53 base::string16 new_labels;
54 for (const base::string16& entry : entries) {
55 if (!entry.empty() &&
56 !base::StartsWith(entry, label_and_separator,
57 base::CompareCase::SENSITIVE)) {
58 new_labels += entry;
59 new_labels += google_update::kExperimentLabelSeparator;
63 new_labels.append(
64 gcapi_internals::GetGCAPIExperimentLabel(brand_code, label));
66 return GoogleUpdateSettings::SetExperimentLabels(system_level,
67 new_labels);
70 } // namespace
72 namespace gcapi_internals {
74 const wchar_t kReactivationLabel[] = L"reacbrand";
75 const wchar_t kRelaunchLabel[] = L"relaunchbrand";
77 base::string16 GetGCAPIExperimentLabel(const wchar_t* brand_code,
78 const base::string16& label) {
79 // Keeps a fixed time state for this GCAPI instance; this makes tests reliable
80 // when crossing time boundaries on the system clock and doesn't otherwise
81 // affect results of this short lived binary.
82 static time_t instance_time_value = 0;
83 if (instance_time_value == 0)
84 instance_time_value = base::Time::Now().ToTimeT();
86 base::Time instance_time = base::Time::FromTimeT(instance_time_value);
88 base::string16 gcapi_experiment_label;
89 base::SStringPrintf(&gcapi_experiment_label,
90 L"%ls=%ls_%d|%ls",
91 label.c_str(),
92 brand_code,
93 GetCurrentRlzWeek(instance_time),
94 installer::BuildExperimentDateString(
95 instance_time).c_str());
96 return gcapi_experiment_label;
99 } // namespace gcapi_internals
101 bool SetReactivationExperimentLabels(const wchar_t* brand_code,
102 int shell_mode) {
103 return SetExperimentLabel(brand_code, gcapi_internals::kReactivationLabel,
104 shell_mode);
107 bool SetRelaunchExperimentLabels(const wchar_t* brand_code, int shell_mode) {
108 return SetExperimentLabel(brand_code, gcapi_internals::kRelaunchLabel,
109 shell_mode);