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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/webui/version/version_handler_helper.h"
#include <string_view>
#include <utility>
#include <vector>
#include "base/base_switches.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/field_trial_list_including_low_anonymity.h"
#include "base/strings/string_util.h"
#include "components/variations/active_field_trials.h"
#include "components/variations/net/variations_command_line.h"
#include "components/variations/service/safe_seed_manager.h"
#include "components/variations/synthetic_trials_active_group_id_provider.h"
namespace version_ui {
namespace {
#if !defined(NDEBUG)
std::string GetActiveGroupNameAsString(
const base::FieldTrial::ActiveGroup& group) {
static const unsigned char kNonBreakingHyphenUTF8[] = {0xE2, 0x80, 0x91,
'\0'};
static std::string_view kNonBreakingHyphenUTF8String(
reinterpret_cast<const char*>(kNonBreakingHyphenUTF8));
std::string result = group.trial_name + ":" + group.group_name;
base::ReplaceChars(result, "-", kNonBreakingHyphenUTF8String, &result);
return result;
}
#endif // !defined(NDEBUG)
} // namespace
std::string SeedTypeToUiString(variations::SeedType seed_type) {
switch (seed_type) {
case variations::SeedType::kRegularSeed:
// We only display if Safe or Null seed is used.
return std::string();
case variations::SeedType::kSafeSeed:
return "Safe";
case variations::SeedType::kNullSeed:
return "Null";
}
}
base::Value::List GetVariationsList() {
std::vector<std::string> variations;
base::FieldTrial::ActiveGroups active_groups;
// Include low anonymity trial groups in the version string, as it is only
// displayed locally (and is useful for diagnostics purposes).
base::FieldTrialListIncludingLowAnonymity::GetActiveFieldTrialGroups(
&active_groups);
#if !defined(NDEBUG)
for (const auto& group : active_groups) {
variations.push_back(GetActiveGroupNameAsString(group));
}
// Synthetic field trials.
for (const variations::SyntheticTrialGroup& group :
variations::SyntheticTrialsActiveGroupIdProvider::GetInstance()
->GetGroups()) {
variations.push_back(GetActiveGroupNameAsString(group.active_group()));
}
#else
// In release mode, display the hashes only.
variations::GetFieldTrialActiveGroupIdsAsStrings(std::string_view(),
active_groups, &variations);
// Synthetic field trials.
std::vector<std::string> synthetic_field_trials;
variations::GetSyntheticTrialGroupIdsAsString(&synthetic_field_trials);
variations.insert(variations.end(), synthetic_field_trials.begin(),
synthetic_field_trials.end());
#endif
base::Value::List variations_list;
for (std::string& variation : variations) {
variations_list.Append(std::move(variation));
}
return variations_list;
}
std::string GetVariationsCommandLine() {
return variations::VariationsCommandLine::GetForCurrentProcess().ToString();
}
} // namespace version_ui
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