Function DecryptCopyNax0ToNca

Goldleaf/source/expt/expt_Export.cpp:81–106

    }

    Result DecryptCopyNax0ToNca(NcmContentStorage *cnt_storage, const NcmContentId cnt_id, const std::string &path, DecryptStartCallback dec_start_cb, DecryptProgressCallback dec_prog_cb) {
        s64 cnt_size = 0;
        GLEAF_RC_TRY(ncmContentStorageGetSizeFromContentId(cnt_storage, &cnt_size, &cnt_id));
        auto rem_size = static_cast<u64>(cnt_size);
        auto exp = fs::GetExplorerForPath(path);
        dec_start_cb((double)cnt_size);

        auto data_buf = new u8[g_Settings.json_settings.exports.value().decrypt_buffer_max_size.value()]();
        ScopeGuard on_exit([&]() {
            delete[] data_buf;
        });

        s64 off = 0;
        exp->StartFile(path, fs::FileMode::Write);
        while(rem_size) {
            const auto read_size = std::min(g_Settings.json_settings.exports.value().decrypt_buffer_max_size.value(), rem_size);
            GLEAF_RC_TRY(ncmContentStorageReadContentIdFile(cnt_storage, data_buf, read_size, &cnt_id, off));
            exp->WriteFile(path, data_buf, read_size);
            rem_size -= read_size;
            off += read_size;
            dec_prog_cb((double)read_size);
        }
        exp->EndFile();
        
        GLEAF_RC_SUCCEED;
    }

    std::string ExportTicketCert(const u64 app_id, const bool export_cert) {
        const auto tik_file = ReadTicket(app_id);