| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/spellchecker/spellcheck_language_blacklist_policy_handler.h" |
| |
| #include <unordered_set> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/strings/string_util.h" |
| #include "base/syslog_logging.h" |
| #include "base/values.h" |
| #include "build/build_config.h" |
| #include "chrome/common/pref_names.h" |
| #include "components/policy/core/browser/policy_error_map.h" |
| #include "components/policy/policy_constants.h" |
| #include "components/prefs/pref_value_map.h" |
| #include "components/spellcheck/browser/pref_names.h" |
| #include "components/spellcheck/common/spellcheck_common.h" |
| #include "components/strings/grit/components_strings.h" |
| |
| SpellcheckLanguageBlacklistPolicyHandler:: |
| SpellcheckLanguageBlacklistPolicyHandler() |
| : TypeCheckingPolicyHandler(policy::key::kSpellcheckLanguageBlacklist, |
| base::Value::Type::LIST) {} |
| |
| SpellcheckLanguageBlacklistPolicyHandler:: |
| ~SpellcheckLanguageBlacklistPolicyHandler() = default; |
| |
| bool SpellcheckLanguageBlacklistPolicyHandler::CheckPolicySettings( |
| const policy::PolicyMap& policies, |
| policy::PolicyErrorMap* errors) { |
| const base::Value* value = nullptr; |
| bool ok = CheckAndGetValue(policies, errors, &value); |
| |
| std::vector<base::Value> blacklisted; |
| std::vector<std::string> unknown; |
| std::vector<std::string> duplicates; |
| SortBlacklistedLanguages(policies, &blacklisted, &unknown, &duplicates); |
| |
| #if !defined(OS_MACOSX) |
| for (const std::string language : duplicates) { |
| errors->AddError(policy_name(), IDS_POLICY_SPELLCHECK_BLACKLIST_IGNORE, |
| language); |
| } |
| |
| for (const std::string language : unknown) { |
| errors->AddError(policy_name(), IDS_POLICY_SPELLCHECK_UNKNOWN_LANGUAGE, |
| language); |
| } |
| #endif |
| |
| return ok; |
| } |
| |
| void SpellcheckLanguageBlacklistPolicyHandler::ApplyPolicySettings( |
| const policy::PolicyMap& policies, |
| PrefValueMap* prefs) { |
| // Ignore this policy if the SpellcheckEnabled policy disables spellcheck. |
| const base::Value* spellcheck_enabled_value = |
| policies.GetValue(policy::key::kSpellcheckEnabled); |
| if (spellcheck_enabled_value && spellcheck_enabled_value->GetBool() == false) |
| return; |
| |
| // If this policy isn't set, don't modify spellcheck languages. |
| const base::Value* value = policies.GetValue(policy_name()); |
| if (!value) |
| return; |
| |
| // Set the blacklisted dictionaries preference based on this policy's values, |
| // and emit warnings for unknown or duplicate languages. |
| std::vector<base::Value> blacklisted; |
| std::vector<std::string> unknown; |
| std::vector<std::string> duplicates; |
| SortBlacklistedLanguages(policies, &blacklisted, &unknown, &duplicates); |
| |
| for (const std::string language : duplicates) { |
| SYSLOG(WARNING) |
| << "SpellcheckLanguageBlacklist policy: an entry was also found in" |
| " the SpellcheckLanguage policy: \"" |
| << language << "\". Blacklist entry will be ignored."; |
| } |
| |
| for (const std::string language : unknown) { |
| SYSLOG(WARNING) << "SpellcheckLanguageBlacklist policy: Unknown or " |
| "unsupported language \"" |
| << language << "\""; |
| } |
| |
| prefs->SetValue(spellcheck::prefs::kSpellCheckBlacklistedDictionaries, |
| base::Value(std::move(blacklisted))); |
| } |
| |
| void SpellcheckLanguageBlacklistPolicyHandler::SortBlacklistedLanguages( |
| const policy::PolicyMap& policies, |
| std::vector<base::Value>* const blacklisted, |
| std::vector<std::string>* const unknown, |
| std::vector<std::string>* const duplicates) { |
| const base::Value* value = policies.GetValue(policy_name()); |
| if (!value) |
| return; |
| |
| // Build a lookup of force-enabled spellcheck languages to find duplicates. |
| const base::Value* forced_enabled_value = |
| policies.GetValue(policy::key::kSpellcheckLanguage); |
| std::unordered_set<std::string> forced_languages_lookup; |
| if (forced_enabled_value) { |
| for (const auto& forced_language : forced_enabled_value->GetList()) |
| forced_languages_lookup.insert(forced_language.GetString()); |
| } |
| |
| // Separate the valid languages from the unknown / unsupported languages and |
| // the languages that also appear in the SpellcheckLanguage policy. |
| const base::Value::ListStorage& blacklisted_languages = value->GetList(); |
| for (const base::Value& language : blacklisted_languages) { |
| std::string current_language = |
| spellcheck::GetCorrespondingSpellCheckLanguage( |
| base::TrimWhitespaceASCII(language.GetString(), base::TRIM_ALL)); |
| |
| if (current_language.empty()) { |
| unknown->emplace_back(language.GetString()); |
| } else { |
| if (forced_languages_lookup.find(language.GetString()) != |
| forced_languages_lookup.end()) { |
| // If a language is both force-enabled and force-disabled, force-enable |
| // wins. Put the language in the list of duplicates. |
| duplicates->emplace_back(std::move(current_language)); |
| } else { |
| blacklisted->emplace_back(std::move(current_language)); |
| } |
| } |
| } |
| } |