PhishingPage.hpp

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/*
 * BastionGuard™
 * Copyright (C) 2025–2026 Calogero Scarnà
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * BastionGuard™ is a trademark of Calogero Scarnà.
 * The BastionGuard™ name and branding are not licensed under the GPL.
 */
 
#pragma once
#include <regex>
#include <gtkmm.h>
#include <atomic>
#include <optional>
#include "PhishingCheckCard.hpp"
#include "../LifetimeGuard.hpp"
 
class PhishingPage : public Gtk::Box {
public:
    PhishingPage();
    virtual ~PhishingPage();
 
private:
    struct ParsedResult {
        Glib::ustring classification;
        Glib::ustring severity;
        Glib::ustring normalized_host;
        Glib::ustring evaluation_chain;
        Glib::ustring matched_indicator;
        Glib::ustring live_probe_status;
        Glib::ustring live_probe_text;
        Glib::ustring report_text;
    };
 
    void on_analyze_requested(const Glib::ustring& url);
 
    static std::string url_encode(const std::string& s);
    static std::string fetch_url_body(const std::string& url);
    static std::string html_entity_decode(std::string s);
    static std::string strip_tags(const std::string& s);
    static std::string trim_copy(const std::string& s);
    static std::optional<std::string> extract_first(
        const std::string& text,
        const std::regex& re,
        int group = 1);
    static std::vector<std::string> extract_all_li_after_label(
        const std::string& html,
        const std::string& label);
    static ParsedResult parse_result_html(const std::string& html);
 
    Gtk::Label lbl_title_;
    PhishingCheckCard phishing_card_;
    Gtk::ScrolledWindow scroller_;
    Gtk::TextView txt_output_;
    Gtk::Label lbl_status_;
 
    std::atomic<bool> destroyed_{false};
 
    // Protegge i lambda async (thread detach + signal_idle) dall'accedere a
    // `this` dopo che la pagina è stata distrutta. destroyed_ da solo non
    // basta: una volta che il distruttore ritorna, leggere this->destroyed_
    // dal thread/idle è già use-after-free. Con l'alive flag (shared_ptr) la
    // memoria del flag resta valida e il lambda fa early-return in sicurezza.
    BastionGuard::AliveFlag alive_ = BastionGuard::make_alive_flag();
};