File: search_engine_fields_validators.cc

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// Copyright 2024 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/search_engines/enterprise/search_engine_fields_validators.h"

#include "base/feature_list.h"
#include "base/strings/string_util.h"
#include "components/omnibox/common/omnibox_features.h"
#include "components/policy/core/browser/policy_error_map.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/policy_constants.h"
#include "components/search_engines/default_search_manager.h"
#include "components/search_engines/enterprise/search_aggregator_policy_handler.h"
#include "components/search_engines/search_terms_data.h"
#include "components/search_engines/template_url.h"
#include "components/search_engines/template_url_data.h"
#include "components/strings/grit/components_strings.h"
#include "url/gurl.h"

namespace policy::search_engine_fields_validators {

bool ShortcutIsEmpty(const std::string& policy_name,
                     const std::string& shortcut,
                     PolicyErrorMap* errors) {
  if (!shortcut.empty()) {
    return false;
  }

  errors->AddError(policy_name,
                   IDS_SEARCH_POLICY_SETTINGS_SHORTCUT_IS_EMPTY);
  return true;
}

bool NameIsEmpty(const std::string& policy_name,
                 const std::string& name,
                 PolicyErrorMap* errors) {
  if (!name.empty()) {
    return false;
  }

  errors->AddError(policy_name, IDS_SEARCH_POLICY_SETTINGS_NAME_IS_EMPTY);
  return true;
}

bool UrlIsEmpty(const std::string& policy_name,
                const std::string& url,
                PolicyErrorMap* errors) {
  if (!url.empty()) {
    return false;
  }

  errors->AddError(policy_name, IDS_SEARCH_POLICY_SETTINGS_URL_IS_EMPTY);
  return true;
}

bool ShortcutHasWhitespace(const std::string& policy_name,
                           const std::string& shortcut,
                           PolicyErrorMap* errors) {
  if (shortcut.find_first_of(base::kWhitespaceASCII) == std::u16string::npos) {
    return false;
  }

  errors->AddError(policy_name,
                   IDS_SEARCH_POLICY_SETTINGS_SHORTCUT_CONTAINS_SPACE,
                   shortcut);
  return true;
}

bool ShortcutStartsWithAtSymbol(const std::string& policy_name,
                                const std::string& shortcut,
                                PolicyErrorMap* errors) {
  if (shortcut[0] != '@') {
    return false;
  }

  errors->AddError(policy_name,
                   IDS_SEARCH_POLICY_SETTINGS_SHORTCUT_STARTS_WITH_AT,
                   shortcut);
  return true;
}

bool ShortcutEqualsDefaultSearchProviderKeyword(const std::string& policy_name,
                                                const std::string& shortcut,
                                                const PolicyMap& policies,
                                                PolicyErrorMap* errors) {
  const base::Value* provider_enabled = policies.GetValue(
      key::kDefaultSearchProviderEnabled, base::Value::Type::BOOLEAN);
  const base::Value* provider_keyword = policies.GetValue(
      key::kDefaultSearchProviderKeyword, base::Value::Type::STRING);
  // Ignore if `DefaultSearchProviderEnabled` is not set, invalid, or disabled.
  // Ignore if `DefaultSearchProviderKeyword` is not set, invalid, or different
  // from `shortcut`.
  if (!provider_enabled || !provider_enabled->GetBool() || !provider_keyword ||
      shortcut != provider_keyword->GetString()) {
    return false;
  }

  errors->AddError(policy_name,
                   IDS_SEARCH_POLICY_SETTINGS_SHORTCUT_EQUALS_DSP_KEYWORD,
                   shortcut);
  return true;
}

bool ReplacementStringIsMissingFromUrl(const std::string& policy_name,
                                       const std::string& url,
                                       PolicyErrorMap* errors) {
  TemplateURLData data;
  data.SetURL(url);
  SearchTermsData search_terms_data;
  if (TemplateURL(data).SupportsReplacement(search_terms_data)) {
    return false;
  }

  errors->AddError(
      policy_name,
      IDS_SEARCH_POLICY_SETTINGS_URL_DOESNT_SUPPORT_REPLACEMENT, url);
  return true;
}

bool ShortcutEqualsSearchAggregatorProviderKeyword(const std::string& shortcut,
                                                   const PolicyMap& policies,
                                                   PolicyErrorMap* errors) {
  // Early return if policy is disabled.
  if (!base::FeatureList::GetInstance() ||
      !base::FeatureList::IsEnabled(omnibox::kEnableSearchAggregatorPolicy)) {
    return false;
  }

  if (!policies.IsPolicySet(key::kEnterpriseSearchAggregatorSettings) ||
      !policies.GetValue(key::kEnterpriseSearchAggregatorSettings,
                         base::Value::Type::DICT)) {
    return false;
  }
  const base::Value::Dict& search_aggregator =
      policies
          .GetValue(key::kEnterpriseSearchAggregatorSettings,
                    base::Value::Type::DICT)
          ->GetDict();

  const std::string* aggregator_shortcut =
      search_aggregator.FindString(SearchAggregatorPolicyHandler::kShortcut);

  if (!aggregator_shortcut || shortcut != *aggregator_shortcut) {
    return false;
  }

  errors->AddError(
      key::kSiteSearchSettings,
      IDS_POLICY_SITE_SEARCH_SETTINGS_SHORTCUT_EQUALS_SEARCH_AGGREGATOR_KEYWORD,
      shortcut);
  return true;
}

}  // namespace policy::search_engine_fields_validators