auto_socket: Windows-скан + список сокетов в Network Settings (add/remove, чистый rewrite конфига)

tools/chatgui/src/networksettingspage.cpp

@@ -1,14 +1,19 @@
-// networksettingspage.cpp — Network configuration form
+// networksettingspage.cpp — Network configuration form (список listen-сокетов)
 #include "networksettingspage.h"
 #include "../transport/config_updater.h"
 #include <QVBoxLayout>
 #include <QHBoxLayout>
+#include <QGridLayout>
 #include <QLabel>
+#include <QCheckBox>
+#include <QLineEdit>
+#include <QListWidget>
+#include <QPushButton>
 #include <QNetworkInterface>
 #include <QFile>
 #include <QTextStream>
 
-static const char* SECTION = "server:lan";
+static const QString AUTO_IP_LABEL = "Auto (0.0.0.0)";
 
 NetworkSettingsPage::NetworkSettingsPage(QWidget* parent)
     : QWidget(parent)
@@ -17,140 +22,92 @@ NetworkSettingsPage::NetworkSettingsPage(QWidget* parent)
     layout->setSpacing(12);
     layout->setContentsMargins(0, 0, 0, 0);
 
-    auto* title = new QLabel("Listen Address", this);
+    auto* title = new QLabel("Listen Sockets", this);
     title->setStyleSheet("font-weight: bold; font-size: 13px;");
     layout->addWidget(title);
 
-    // Interface
-    auto* ifRow = new QHBoxLayout();
-    ifRow->addWidget(new QLabel("Interface:", this));
-    m_interfaceCombo = new QComboBox(this);
-    m_interfaceCombo->setMinimumWidth(180);
-    ifRow->addWidget(m_interfaceCombo, 1);
-    layout->addLayout(ifRow);
+    m_autoSocketsCheck = new QCheckBox("Auto sockets (UDP+TCP from interfaces)", this);
+    layout->addWidget(m_autoSocketsCheck);
 
-    // IP
-    auto* ipRow = new QHBoxLayout();
-    ipRow->addWidget(new QLabel("IP Address:", this));
+    m_serverList = new QListWidget(this);
+    m_serverList->setMinimumHeight(110);
+    layout->addWidget(m_serverList);
+
+    auto* btnRow = new QHBoxLayout();
+    m_addBtn = new QPushButton("Add", this);
+    m_removeBtn = new QPushButton("Remove", this);
+    btnRow->addWidget(m_addBtn);
+    btnRow->addWidget(m_removeBtn);
+    btnRow->addStretch();
+    layout->addLayout(btnRow);
+
+    // --- форма правки выбранного сокета ---
+    auto* formLayout = new QGridLayout();
+
+    formLayout->addWidget(new QLabel("Name:", this), 0, 0);
+    m_nameEdit = new QLineEdit(this);
+    m_nameEdit->setMinimumWidth(180);
+    formLayout->addWidget(m_nameEdit, 0, 1);
+
+    formLayout->addWidget(new QLabel("IP Address:", this), 1, 0);
     m_ipCombo = new QComboBox(this);
     m_ipCombo->setEditable(true);
     m_ipCombo->setMinimumWidth(180);
-    ipRow->addWidget(m_ipCombo, 1);
-    layout->addLayout(ipRow);
+    formLayout->addWidget(m_ipCombo, 1, 1);
 
-    // Port
-    auto* portRow = new QHBoxLayout();
-    portRow->addWidget(new QLabel("Port:", this));
+    formLayout->addWidget(new QLabel("Port:", this), 2, 0);
     m_portSpin = new QSpinBox(this);
     m_portSpin->setRange(1, 65535);
     m_portSpin->setValue(1333);
-    m_portSpin->setMinimumWidth(100);
-    portRow->addWidget(m_portSpin);
-    portRow->addStretch();
-    layout->addLayout(portRow);
+    formLayout->addWidget(m_portSpin, 2, 1);
 
-    // Protocol
-    auto* protoRow = new QHBoxLayout();
-    protoRow->addWidget(new QLabel("Protocol:", this));
+    formLayout->addWidget(new QLabel("Protocol:", this), 3, 0);
     m_protoCombo = new QComboBox(this);
     m_protoCombo->addItems({"UDP", "TCP"});
-    m_protoCombo->setMinimumWidth(100);
-    protoRow->addWidget(m_protoCombo);
-    protoRow->addStretch();
-    layout->addLayout(protoRow);
+    formLayout->addWidget(m_protoCombo, 3, 1);
+
+    formLayout->addWidget(new QLabel("Type:", this), 4, 0);
+    m_typeCombo = new QComboBox(this);
+    m_typeCombo->addItems({"public", "nat", "private", "local"});
+    formLayout->addWidget(m_typeCombo, 4, 1);
+
+    formLayout->addWidget(new QLabel("Interface:", this), 5, 0);
+    m_interfaceCombo = new QComboBox(this);
+    m_interfaceCombo->setMinimumWidth(180);
+    formLayout->addWidget(m_interfaceCombo, 5, 1);
+
+    layout->addLayout(formLayout);
 
     auto* note = new QLabel("Changes take effect after restart.", this);
     note->setStyleSheet("color: gray; font-size: 11px;");
     layout->addWidget(note);
-
     layout->addStretch();
 
     populateInterfaces();
-    connect(m_interfaceCombo, QOverload<int>::of(&QComboBox::currentIndexChanged),
-            this, &NetworkSettingsPage::onInterfaceChanged);
+    populateAddresses();
+
+    connect(m_autoSocketsCheck, &QCheckBox::toggled, this, &NetworkSettingsPage::onAutoSocketsToggled);
+    connect(m_addBtn, &QPushButton::clicked, this, &NetworkSettingsPage::onAddServer);
+    connect(m_removeBtn, &QPushButton::clicked, this, &NetworkSettingsPage::onRemoveServer);
+    connect(m_serverList, &QListWidget::currentRowChanged, this, [this](int) { onServerSelected(); });
+
+    connect(m_nameEdit, &QLineEdit::textChanged, this, [this](const QString&) { onFieldChanged(); });
+    connect(m_ipCombo, &QComboBox::editTextChanged, this, [this](const QString&) { onFieldChanged(); });
+    connect(m_portSpin, QOverload<int>::of(&QSpinBox::valueChanged), this, [this](int) { onFieldChanged(); });
+    connect(m_protoCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [this](int) { onFieldChanged(); });
+    connect(m_typeCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [this](int) { onFieldChanged(); });
+    connect(m_interfaceCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [this](int) { onFieldChanged(); });
 }
 
-void NetworkSettingsPage::loadFromConfig(const QString& configPath) {
-    // Read [server:lan] section from INI file
-    QString addr, netif, transport;
-    QFile f(configPath);
-    if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        bool inSection = false;
-        QTextStream in(&f);
-        while (!in.atEnd()) {
-            QString line = in.readLine();
-            if (line.startsWith('[') && line.endsWith(']')) {
-                inSection = (line.mid(1, line.length() - 2) == SECTION);
-                continue;
-            }
-            if (!inSection || !line.contains('=')) continue;
-            QString key = line.section('=', 0, 0).trimmed();
-            QString val = line.section('=', 1).trimmed();
-            if (key == "addr") addr = val;
-            else if (key == "netif") netif = val;
-            else if (key == "transport") transport = val;
-        }
-        f.close();
+static void splitAddr(const QString& addr, QString& ip, int& port) {
+    int lastColon = addr.lastIndexOf(':');
+    if (lastColon > 0) {
+        ip = addr.left(lastColon);
+        port = addr.mid(lastColon + 1).toInt();
+    } else {
+        ip = addr;
+        port = 0;
     }
-
-    // Parse addr: IP:port
-    QString ip;
-    if (!addr.isEmpty()) {
-        int lastColon = addr.lastIndexOf(':');
-        if (lastColon > 0) {
-            ip = addr.left(lastColon);
-            int port = addr.mid(lastColon + 1).toInt();
-            if (port > 0 && port <= 65535) m_portSpin->setValue(port);
-        }
-    }
-
-    // Set protocol
-    int protoIdx = (transport == "tcp") ? 1 : 0;
-    m_protoCombo->setCurrentIndex(protoIdx);
-
-    // Set interface
-    int ifIdx = m_interfaceCombo->findText(netif);
-    if (ifIdx >= 0) m_interfaceCombo->setCurrentIndex(ifIdx);
-
-    // Set IP — populate addresses first, then select
-    populateAddresses(netif.isEmpty() ? QString() : netif);
-    if (ip.isEmpty() || ip == "0.0.0.0") ip = "Auto (0.0.0.0)";
-    int ipIdx = m_ipCombo->findText(ip);
-    if (ipIdx >= 0)
-        m_ipCombo->setCurrentIndex(ipIdx);
-    else
-        m_ipCombo->setCurrentText(ip);
-}
-
-void NetworkSettingsPage::saveToConfig(const QString& configPath) const {
-    // addr
-    QString ip = m_ipCombo->currentText().trimmed();
-    if (ip.isEmpty() || ip == "Auto (0.0.0.0)") ip = "0.0.0.0";
-    config_update_option(configPath, SECTION, "addr",
-                         QString("%1:%2").arg(ip).arg(m_portSpin->value()),
-                         CONFIG_UPDATE_REPLACE);
-
-    // netif: set or remove (empty value means no netif binding)
-    QString iface = m_interfaceCombo->currentText();
-    if (iface.startsWith("Auto"))
-        iface.clear();
-    config_update_option(configPath, SECTION, "netif", iface, CONFIG_UPDATE_REPLACE);
-
-    // transport
-    config_update_option(configPath, SECTION, "transport",
-                         m_protoCombo->currentText().toLower(),
-                         CONFIG_UPDATE_REPLACE);
-
-    // IPv6 dual-stack: always add [server:lan6] with same port
-    config_update_option(configPath, "server:lan6", "addr",
-                         QString("[::]:%1").arg(m_portSpin->value()),
-                         CONFIG_UPDATE_REPLACE);
-}
-
-void NetworkSettingsPage::onInterfaceChanged(int index) {
-    Q_UNUSED(index);
-    QString iface = m_interfaceCombo->currentText();
-    populateAddresses(iface.startsWith("Auto") ? QString() : iface);
 }
 
 void NetworkSettingsPage::populateInterfaces() {
@@ -162,30 +119,201 @@ void NetworkSettingsPage::populateInterfaces() {
     }
 }
 
-void NetworkSettingsPage::populateAddresses(const QString& ifaceName) {
-    QString current = m_ipCombo->currentText();
-    m_ipCombo->clear();
-    m_ipCombo->addItem("Auto (0.0.0.0)");
-
-    if (ifaceName.isEmpty()) {
-        for (const QNetworkInterface& iface : QNetworkInterface::allInterfaces()) {
-            if (iface.flags() & QNetworkInterface::IsLoopBack) continue;
-            if (!(iface.flags() & QNetworkInterface::IsUp)) continue;
-            for (const QNetworkAddressEntry& entry : iface.addressEntries()) {
-                if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol)
-                    m_ipCombo->addItem(entry.ip().toString());
-            }
-        }
-    } else {
-        QNetworkInterface iface = QNetworkInterface::interfaceFromName(ifaceName);
-        if (iface.isValid()) {
-            for (const QNetworkAddressEntry& entry : iface.addressEntries()) {
-                if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol)
-                    m_ipCombo->addItem(entry.ip().toString());
-            }
+void NetworkSettingsPage::populateAddresses() {
+    m_ipCombo->addItem(AUTO_IP_LABEL);
+    for (const QNetworkInterface& iface : QNetworkInterface::allInterfaces()) {
+        if (iface.flags() & QNetworkInterface::IsLoopBack) continue;
+        if (!(iface.flags() & QNetworkInterface::IsUp)) continue;
+        for (const QNetworkAddressEntry& entry : iface.addressEntries()) {
+            if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol)
+                m_ipCombo->addItem(entry.ip().toString());
         }
     }
+}
 
-    int idx = m_ipCombo->findText(current);
-    if (idx >= 0) m_ipCombo->setCurrentIndex(idx);
+void NetworkSettingsPage::applyAutoSocketsState() {
+    bool manual = !m_autoSocketsCheck->isChecked();
+    m_serverList->setEnabled(manual);
+    m_addBtn->setEnabled(manual);
+    m_removeBtn->setEnabled(manual);
+    m_nameEdit->setEnabled(manual);
+    m_ipCombo->setEnabled(manual);
+    m_portSpin->setEnabled(manual);
+    m_protoCombo->setEnabled(manual);
+    m_typeCombo->setEnabled(manual);
+    m_interfaceCombo->setEnabled(manual);
+}
+
+void NetworkSettingsPage::refreshServerList(int selectRow) {
+    m_updating = true;
+    m_serverList->clear();
+    for (const ConfigServer& s : m_servers) {
+        m_serverList->addItem(QString("%1  %2  (%3)").arg(s.name, s.addr, s.transport));
+    }
+    if (selectRow >= 0 && selectRow < m_serverList->count())
+        m_serverList->setCurrentRow(selectRow);
+    else if (m_serverList->count() > 0)
+        m_serverList->setCurrentRow(0);
+    m_updating = false;
+}
+
+void NetworkSettingsPage::loadFormFromSelected() {
+    int row = m_serverList->currentRow();
+    if (row < 0 || row >= m_servers.size()) return;
+    const ConfigServer& s = m_servers[row];
+
+    m_updating = true;
+    m_nameEdit->setText(s.name);
+    QString ip; int port = 0;
+    splitAddr(s.addr, ip, port);
+    if (ip == "0.0.0.0") ip = AUTO_IP_LABEL;
+    m_ipCombo->setCurrentText(ip);
+    m_portSpin->setValue(port > 0 ? port : 1333);
+    m_protoCombo->setCurrentIndex(s.transport == "tcp" ? 1 : 0);
+    int typeIdx = m_typeCombo->findText(s.type);
+    m_typeCombo->setCurrentIndex(typeIdx >= 0 ? typeIdx : 0);
+    int ifIdx = m_interfaceCombo->findText(s.netif);
+    m_interfaceCombo->setCurrentIndex(ifIdx >= 0 ? ifIdx : 0);
+    m_updating = false;
+}
+
+void NetworkSettingsPage::updateSelectedServerFromForm() {
+    int row = m_serverList->currentRow();
+    if (row < 0 || row >= m_servers.size()) return;
+
+    ConfigServer& s = m_servers[row];
+    s.name = m_nameEdit->text().trimmed();
+
+    QString ip = m_ipCombo->currentText().trimmed();
+    if (ip == AUTO_IP_LABEL) ip = "0.0.0.0";
+    s.addr = ip + ":" + QString::number(m_portSpin->value());
+
+    s.transport = (m_protoCombo->currentIndex() == 1) ? "tcp" : "udp";
+    s.type = m_typeCombo->currentText().trimmed();
+    QString iface = m_interfaceCombo->currentText();
+    s.netif = iface.startsWith("Auto") ? QString() : iface;
+}
+
+void NetworkSettingsPage::updateSelectedListItemText() {
+    int row = m_serverList->currentRow();
+    if (row < 0 || row >= m_servers.size()) return;
+    const ConfigServer& s = m_servers[row];
+    m_updating = true;
+    m_serverList->item(row)->setText(QString("%1  %2  (%3)").arg(s.name, s.addr, s.transport));
+    m_updating = false;
+}
+
+void NetworkSettingsPage::loadFromConfig(const QString& configPath) {
+    m_configPath = configPath;
+    m_servers.clear();
+
+    QFile f(configPath);
+    if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        QString section;
+        ConfigServer cur;
+        bool inServer = false;
+        QTextStream in(&f);
+        while (!in.atEnd()) {
+            QString line = in.readLine().trimmed();
+            if (line.startsWith('[') && line.endsWith(']')) {
+                if (inServer) m_servers.append(cur);
+                inServer = false;
+                section = line.mid(1, line.length() - 2);
+                if (section.startsWith("server:")) {
+                    cur = ConfigServer();
+                    cur.name = section.mid(7);
+                    cur.transport = "udp";
+                    cur.type = "public";
+                    inServer = true;
+                }
+                continue;
+            }
+            if (!inServer || !line.contains('=')) continue;
+            QString key = line.section('=', 0, 0).trimmed();
+            QString val = line.section('=', 1).trimmed();
+            if (key == "addr") cur.addr = val;
+            else if (key == "transport") cur.transport = val;
+            else if (key == "type") cur.type = val;
+            else if (key == "netif") cur.netif = val;
+        }
+        if (inServer) m_servers.append(cur);
+        f.close();
+    }
+
+    /* auto_sockets из [global] */
+    bool autoSockets = false;
+    f.setFileName(configPath);
+    if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        QString section;
+        QTextStream in(&f);
+        while (!in.atEnd()) {
+            QString line = in.readLine().trimmed();
+            if (line.startsWith('[') && line.endsWith(']')) {
+                section = line.mid(1, line.length() - 2);
+                continue;
+            }
+            if ((section == "global" || section.isEmpty()) && line.startsWith("auto_sockets=")) {
+                QString v = line.section('=', 1).trimmed();
+                autoSockets = (v.compare("yes", Qt::CaseInsensitive) == 0 || v == "1");
+                break;
+            }
+        }
+        f.close();
+    }
+    m_autoSocketsCheck->setChecked(autoSockets);
+
+    refreshServerList();
+    applyAutoSocketsState();
+}
+
+void NetworkSettingsPage::saveToConfig(const QString& configPath) const {
+    /* 1. Серверные секции — полная перезапись */
+    config_rewrite_servers(configPath, m_servers);
+
+    /* 2. auto_sockets */
+    config_update_option(configPath, "global", "auto_sockets",
+                         m_autoSocketsCheck->isChecked() ? "yes" : "no",
+                         CONFIG_UPDATE_REPLACE);
+}
+
+void NetworkSettingsPage::onAutoSocketsToggled(bool /*on*/) {
+    applyAutoSocketsState();
+}
+
+void NetworkSettingsPage::onAddServer() {
+    int n = m_servers.size() + 1;
+    QString name;
+    for (;;) {
+        name = QString("srv%1").arg(n);
+        bool used = false;
+        for (const ConfigServer& s : m_servers) if (s.name == name) { used = true; break; }
+        if (!used) break;
+        n++;
+    }
+    ConfigServer s;
+    s.name = name;
+    s.addr = "0.0.0.0:1333";
+    s.transport = "udp";
+    s.type = "public";
+    m_servers.append(s);
+    refreshServerList(m_servers.size() - 1);
+    loadFormFromSelected();
+}
+
+void NetworkSettingsPage::onRemoveServer() {
+    int row = m_serverList->currentRow();
+    if (row < 0 || row >= m_servers.size()) return;
+    m_servers.removeAt(row);
+    refreshServerList(row);
+    loadFormFromSelected();
+}
+
+void NetworkSettingsPage::onServerSelected() {
+    loadFormFromSelected();
+}
+
+void NetworkSettingsPage::onFieldChanged() {
+    if (m_updating) return;
+    updateSelectedServerFromForm();
+    updateSelectedListItemText();
 }

tools/chatgui/src/networksettingspage.h

@@ -1,10 +1,17 @@
-// networksettingspage.h — Network configuration form
+// networksettingspage.h — Network configuration form (список listen-сокетов)
 #pragma once
 
 #include <QWidget>
 #include <QComboBox>
 #include <QSpinBox>
 #include <QString>
+#include <QList>
+#include "../transport/config_updater.h"
+
+class QCheckBox;
+class QLineEdit;
+class QListWidget;
+class QPushButton;
 
 class NetworkSettingsPage : public QWidget {
     Q_OBJECT
@@ -15,14 +22,33 @@ public:
     void saveToConfig(const QString& configPath) const;
 
 private slots:
-    void onInterfaceChanged(int index);
+    void onAutoSocketsToggled(bool on);
+    void onAddServer();
+    void onRemoveServer();
+    void onServerSelected();
+    void onFieldChanged();
 
 private:
     void populateInterfaces();
-    void populateAddresses(const QString& ifaceName);
+    void populateAddresses();
+    void applyAutoSocketsState();
+    void refreshServerList(int selectRow = -1);
+    void loadFormFromSelected();
+    void updateSelectedServerFromForm();
+    void updateSelectedListItemText();
 
-    QComboBox* m_interfaceCombo;
-    QComboBox* m_ipCombo;
-    QSpinBox*  m_portSpin;
-    QComboBox* m_protoCombo;
+    QCheckBox*    m_autoSocketsCheck;
+    QListWidget*  m_serverList;
+    QPushButton*  m_addBtn;
+    QPushButton*  m_removeBtn;
+    QLineEdit*    m_nameEdit;
+    QComboBox*    m_ipCombo;
+    QSpinBox*     m_portSpin;
+    QComboBox*    m_protoCombo;
+    QComboBox*    m_typeCombo;
+    QComboBox*    m_interfaceCombo;
+
+    QList<ConfigServer> m_servers;
+    QString m_configPath;
+    bool m_updating = false;
 };

tools/chatgui/transport/config_updater.cpp

@@ -85,3 +85,75 @@ bool config_update_option(const QString& filePath, const QString& section,
     f.close();
     return true;
 }
+
+static bool is_section_header(const QString& line) {
+    QString t = line.trimmed();
+    return t.startsWith('[') && t.endsWith(']');
+}
+
+bool config_rewrite_servers(const QString& filePath, const QList<ConfigServer>& servers) {
+    QFile f(filePath);
+    QStringList lines;
+
+    if (f.exists()) {
+        if (!f.open(QIODevice::ReadOnly | QIODevice::Text)) return false;
+        QTextStream in(&f);
+        while (!in.atEnd()) {
+            QString line = in.readLine(0);
+            if (line.endsWith('\r')) line.chop(1);
+            lines.append(line);
+        }
+        f.close();
+    }
+
+    /* 1. Удалить все [server:*] секции (заголовок + ключи + хвостовую пустую строку-разделитель) */
+    QStringList filtered;
+    filtered.reserve(lines.size());
+    for (int i = 0; i < lines.size(); i++) {
+        QString t = lines[i].trimmed();
+        if (t.startsWith("[server:") && t.endsWith(']')) {
+            int j = i + 1;
+            while (j < lines.size() && !is_section_header(lines[j])) j++;
+            i = j - 1;          /* for-loop сделает i++ → j: заголовок+ключи+пустая строка пропущены */
+            continue;
+        }
+        filtered << lines[i];
+    }
+    lines = filtered;
+
+    /* 2. Собрать блок секций [server:*] */
+    QStringList block;
+    for (const ConfigServer& s : servers) {
+        block << ("[server:" + s.name + "]");
+        block << ("addr=" + s.addr);
+        block << ("transport=" + (s.transport.isEmpty() ? QString("udp") : s.transport));
+        block << ("type=" + (s.type.isEmpty() ? QString("public") : s.type));
+        if (!s.netif.isEmpty()) block << ("netif=" + s.netif);
+        block << "";            /* разделитель: одна пустая строка между секциями */
+    }
+
+    /* 3. Точка вставки: после секции [global] (перед следующей секцией) */
+    int insertPos = lines.size();
+    for (int i = 0; i < lines.size(); i++) {
+        if (lines[i].trimmed() == "[global]") {
+            int j = i + 1;
+            while (j < lines.size() && !is_section_header(lines[j])) j++;
+            insertPos = j;
+            break;
+        }
+    }
+
+    /* 4. Вставить блок (если непустой) */
+    if (!block.isEmpty()) {
+        for (int i = block.size() - 1; i >= 0; i--)
+            lines.insert(insertPos, block[i]);
+    }
+
+    /* 5. Записать */
+    if (!f.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate)) return false;
+    QTextStream out(&f);
+    for (const QString& l : lines)
+        out << l << '\n';
+    f.close();
+    return true;
+}

tools/chatgui/transport/config_updater.h

@@ -4,12 +4,22 @@
 
 #include <QString>
 #include <QStringList>
+#include <QList>
 
 enum ConfigUpdateFlag {
     CONFIG_UPDATE_REPLACE = 0,  // replace existing param (single value)
     CONFIG_UPDATE_APPEND  = 1   // add new param even if exists (multi-value)
 };
 
+/* Один listen-сокет = секция [server:name]. */
+struct ConfigServer {
+    QString name;        // суффикс секции: "lan", "lan6"
+    QString addr;        // "0.0.0.0:1333" | "[::]:1333"
+    QString transport;   // "udp" | "tcp"
+    QString type;        // "public" | "nat" | "private" | "local"
+    QString netif;       // "" = не привязывать к интерфейсу
+};
+
 // Batch update — for callers that read/write the file once (e.g. NodeConfig::save)
 bool config_update_in_lines(QStringList& lines, const QString& section,
                             const QString& key, const QString& value, bool replace);
@@ -19,4 +29,8 @@ bool config_update_option(const QString& filePath, const QString& section,
                           const QString& param, const QString& value,
                           int flags = CONFIG_UPDATE_REPLACE);
 
+// Полностью заменяет секции [server:*]: удаляет старые, вставляет новые после [global].
+// Внутри секции без пустых строк, между секциями ровно одна пустая строка.
+bool config_rewrite_servers(const QString& filePath, const QList<ConfigServer>& servers);
+
 #endif // CONFIG_UPDATER_H

tools/chatgui/transport/node_config.cpp

@@ -178,10 +178,8 @@ bool NodeConfig::create(const QString& nodeName, quint16 listenPort) {
         m_controlAddr = "127.0.0.1:9999";
     m_servers.clear();
     m_clients.clear();
-    if (listenPort > 0) {
-        m_servers.append({"lan", QString("0.0.0.0:%1").arg(listenPort)});
-        m_servers.append({"lan6", QString("[::]:%1").arg(listenPort)});
-    }
+    (void)listenPort;   /* автосокеты сами создают UDP+TCP на случайных портах */
+    m_autoSockets = true;
     if (m_dbPath.isEmpty())
         m_dbPath = "chat_data";
     return save();
@@ -277,6 +275,7 @@ bool NodeConfig::load() {
             else if (key == "my_node_id") m_nodeId = val;
             else if (key == "my_public_key") m_pubKey = val;
             else if (key == "my_private_key") m_privKey = val;
+            else if (key == "auto_sockets") m_autoSockets = (val.compare("yes", Qt::CaseInsensitive) == 0 || val == "1");
         } else if (section.startsWith("server:")) {
             QString srvName = section.mid(7);
             if (key == "addr") m_servers.append({srvName, val});
@@ -328,6 +327,7 @@ bool NodeConfig::saveFull() {
     if (!m_nodeId.isEmpty()) out << "my_node_id=" << m_nodeId << "\n";
     if (!m_privKey.isEmpty()) out << "my_private_key=" << m_privKey << "\n";
     if (!m_pubKey.isEmpty()) out << "my_public_key=" << m_pubKey << "\n";
+    out << "auto_sockets=" << (m_autoSockets ? "yes" : "no") << "\n";
     out << "\n";
 
     for (auto& srv : m_servers) {
@@ -403,6 +403,7 @@ bool NodeConfig::save() {
     config_update_in_lines(lines, "global", "my_node_id", m_nodeId, true);
     config_update_in_lines(lines, "global", "my_private_key", m_privKey, true);
     config_update_in_lines(lines, "global", "my_public_key", m_pubKey, true);
+    config_update_in_lines(lines, "global", "auto_sockets", m_autoSockets ? "yes" : "no", true);
 
     if (!m_controlAddr.isEmpty()) {
         int sep = m_controlAddr.lastIndexOf(':');

tools/chatgui/transport/node_config.h

@@ -40,6 +40,9 @@ public:
     quint16 controlPort() const;
     void setControlPort(quint16 p);
 
+    bool autoSockets() const { return m_autoSockets; }
+    void setAutoSockets(bool v) { m_autoSockets = v; }
+
     QString filePath() const { return m_path; }
 
     /* GUI settings (from [gui] section) */
@@ -65,6 +68,7 @@ private:
     QList<QPair<QString,QString>> m_servers;
     QList<NodeClient> m_clients;
     QString m_controlAddr;
+    bool m_autoSockets = true;
     QString m_dbPath;
     QString m_debugFile;
     QString m_debugLevel;