DanS
e00772db6e
Many strings are used directly as printf/ImGui format strings, and translations are loaded from user/installer-modifiable JSON with no validation. A translated value that drops or changes a conversion specifier would be passed to printf with mismatched varargs (undefined behavior) on a wallet screen. overlayTranslations() now compares each translated value's argument signature against the English source and keeps English on mismatch. Also adds the send_status_unconfirmed string used by the deferred-send-result path. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// DragonX Wallet - ImGui Edition
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// Copyright 2024-2026 The Hush Developers
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// Released under the GPLv3
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#pragma once
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include <nlohmann/json_fwd.hpp>
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namespace dragonx {
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namespace util {
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/**
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* @brief Internationalization support
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*
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* Simple string table implementation for translating UI text.
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* Strings are stored in JSON files in res/lang/ directory.
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*/
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class I18n {
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public:
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/**
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* @brief Get the singleton instance
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*/
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static I18n& instance();
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/**
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* @brief Load a language file
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* @param locale Language code (e.g., "en", "es", "zh")
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* @return true if loaded successfully
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*/
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bool loadLanguage(const std::string& locale);
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/**
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* @brief Translate a string
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* @param key The string key (usually English text)
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* @return Translated string, or key if not found
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*/
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const char* translate(const char* key) const;
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/**
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* @brief Get current locale
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*/
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const std::string& getCurrentLocale() const { return current_locale_; }
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/**
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* @brief Get list of available languages
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*/
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const std::vector<std::pair<std::string, std::string>>& getAvailableLanguages() const { return available_languages_; }
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/**
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* @brief Register an available language
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* @param code Language code (e.g., "en")
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* @param name Display name (e.g., "English")
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*/
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void registerLanguage(const std::string& code, const std::string& name);
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private:
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I18n();
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void loadBuiltinEnglish();
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// Overlay translated strings onto the English base, but reject any value whose printf
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// format-specifier signature differs from the English source (keep English instead).
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// Many strings are used directly as printf/ImGui format strings, so a mismatched
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// translation (dropped/changed specifier) is undefined behavior — this prevents it.
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void overlayTranslations(const nlohmann::json& translations);
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std::string current_locale_ = "en";
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std::unordered_map<std::string, std::string> strings_;
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std::vector<std::pair<std::string, std::string>> available_languages_;
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};
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/**
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* @brief Convenience function for translation
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* @param key The string key
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* @return Translated string
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*/
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inline const char* tr(const char* key) {
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return I18n::instance().translate(key);
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}
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} // namespace util
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} // namespace dragonx
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// Convenience macro for translations
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#define TR(key) dragonx::util::tr(key)
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