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5665e0b522
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5665e0b522 | ||
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089a11207a |
@@ -0,0 +1,303 @@
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// SPDX-FileCopyrightText: 2026 Jokul
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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// TCP 连接清单窗口:屏幕居中的独立顶层窗口,展示当前所有 ESTABLISHED 状态的
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// TCP 连接详情(本地地址:端口、远程地址:端口、状态、进程名),数据来自 C++ 后端
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// 解析 /proc/net/tcp 与 tcp6(含进程名反查)。
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// 设计要点:
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// - 视觉风格复用 TrafficStatsWindow.qml(圆角卡片 12px、1px 边框、44px 标题栏、
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// 28x28 圆形关闭按钮 hover 淡红底);深/浅主题由 isDarkMode 切换
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// (networkview.qml 依据 DockPalette 检测任务栏深浅后传入),默认浅色保证独立预览可用
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// - 数据通过属性注入:applet 即 networkview.qml 的 root.applet(C++ 后端对象),
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// applet.tcpConnectionList 为 QVariantList of QVariantMap,每项含
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// {localAddress, localPort, remoteAddress, remotePort, state, processName},
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// 为 null 时组件可独立预览(显示空状态)
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// - 定时刷新:窗口可见时每 5 秒重建清单(与 C++ 后端降频周期一致),关闭时停止
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// 触发方式:右键菜单"TCP 连接清单" -> show()/raise()/requestActivate()
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// 公共能力复用:主题色取自 WindowTheme,标题栏(含关闭按钮)取自 TitleBar
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import QtQuick 2.15
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import QtQuick.Layouts 1.15
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import QtQuick.Window 2.15
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import "."
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Window {
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id: root
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// 公共主题色:集中定义于 WindowTheme.qml,随 isDarkMode 切换深浅
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WindowTheme {
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id: theme
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isDarkMode: root.isDarkMode
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}
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// 对外依赖:关闭按钮 hover 态文字高亮色,由父组件传入
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// 默认值与 networkview.qml 中 root.accentRed 一致,确保独立可用
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property color accentColor: Qt.rgba(220 / 255, 38 / 255, 38 / 255, 1)
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// 对外依赖:C++ 后端对象(NetworkMonitorApplet),由 networkview.qml 传入
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// 提供 tcpConnectionList(QVariantList of QVariantMap);为 null 时可独立预览(显示空状态)
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property var applet: null
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// 深色模式标记:由 networkview.qml 根据 DockPalette 检测后传入;
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// 默认 false(浅色)保证组件独立预览时与原版视觉一致
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property bool isDarkMode: false
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// 表格模型:由 refreshModel() 生成的连接记录数组,每项
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// {localAddress, localPort, remoteAddress, remotePort, state, processName}
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property var connModel: []
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// 当前连接总数,底部汇总与顶部状态条共用
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property int connCount: 0
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// 表格列宽:与表头/行/底部汇总共用同一组固定宽度,保证各列垂直对齐
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readonly property int colLocal: 180
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readonly property int colRemote: 180
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readonly property int colState: 90
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readonly property int colSpacing: 6
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// 从 applet.tcpConnectionList 重建表格模型
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// 设计原因:连接清单数量随时变化,每次读取重建数组供 ListView 展示;
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// applet 为 null 时置空模型,保证独立预览可用
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function refreshModel() {
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var list = root.applet ? (root.applet.tcpConnectionList || []) : []
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root.connModel = list
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root.connCount = list.length
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}
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width: 680
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height: 420
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visible: false
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flags: Qt.FramelessWindowHint | Qt.Window
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modality: Qt.NonModal
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color: "transparent"
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onVisibleChanged: {
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if (visible) {
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// 居中到当前屏幕(任务栏所在屏幕),加 virtualX/virtualY 偏移
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// 避免多显示器下窗口出现在非预期屏幕
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x = Screen.virtualX + (Screen.width - width) / 2
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y = Screen.virtualY + (Screen.height - height) / 2
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// 窗口显示时立即刷新一次,确保数据最新
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refreshModel()
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}
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}
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// 定时刷新:窗口可见时每 5 秒重建清单(与 C++ 后端降频周期一致),
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// 不依赖 C++ 信号;关闭时停止,兼顾实时性与性能
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Timer {
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interval: 5000
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repeat: true
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running: root.visible
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onTriggered: refreshModel()
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}
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// 窗口主体:圆角卡片(背景与边框随 isDarkMode 切换深浅),1px 边框模拟 DTK 窗口描边
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Rectangle {
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anchors.fill: parent
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color: theme.winBg
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radius: 12
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border.width: 1
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border.color: theme.lineColor
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ColumnLayout {
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anchors.fill: parent
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spacing: 0
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// 公共标题栏:标题文字 + 关闭按钮,整栏可拖动
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TitleBar {
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Layout.fillWidth: true
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titleText: qsTr("TCP Connections")
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textColor: theme.textPrimary
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secondaryTextColor: theme.textSecondary
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closeHoverColor: root.accentColor
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}
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// 顶部状态条:当前连接数 + 刷新间隔说明
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RowLayout {
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Layout.fillWidth: true
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Layout.preferredHeight: 34
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Layout.leftMargin: 16
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Layout.rightMargin: 16
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spacing: 8
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Text {
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// 动态刷新连接总数,与底部汇总一致
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text: qsTr("Active connections: ") + root.connCount
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font.pixelSize: 12
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font.weight: Font.Medium
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color: theme.textPrimary
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}
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Item { Layout.fillWidth: true }
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Text {
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text: qsTr("Refreshes every 5 seconds")
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font.pixelSize: 11
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color: theme.textTertiary
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}
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}
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// 表头行:本地地址:端口 | 远程地址:端口 | 状态 | 进程名
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RowLayout {
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Layout.fillWidth: true
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Layout.leftMargin: 16
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Layout.rightMargin: 16
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Layout.topMargin: 2
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spacing: root.colSpacing
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Text {
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Layout.preferredWidth: root.colLocal
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text: qsTr("Local Address:Port")
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font.pixelSize: 11
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font.weight: Font.Bold
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color: theme.textSecondary
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}
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Text {
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Layout.preferredWidth: root.colRemote
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text: qsTr("Remote Address:Port")
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font.pixelSize: 11
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font.weight: Font.Bold
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color: theme.textSecondary
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}
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Text {
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Layout.preferredWidth: root.colState
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text: qsTr("State")
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font.pixelSize: 11
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font.weight: Font.Bold
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color: theme.textSecondary
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}
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Text {
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Layout.fillWidth: true
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text: qsTr("Process")
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font.pixelSize: 11
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font.weight: Font.Bold
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color: theme.textSecondary
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}
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}
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// 表头与内容间的分隔线
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Rectangle {
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Layout.fillWidth: true
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Layout.preferredHeight: 1
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Layout.leftMargin: 16
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Layout.rightMargin: 16
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Layout.topMargin: 4
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color: theme.lineColor
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}
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// 表格区:ListView 展示每条连接记录,行 hover 高亮
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ListView {
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Layout.fillWidth: true
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Layout.fillHeight: true
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Layout.leftMargin: 16
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Layout.rightMargin: 16
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Layout.topMargin: 2
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Layout.bottomMargin: 2
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clip: true
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model: root.connModel
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onCountChanged: emptyHint.visible = root.connModel.length === 0
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// 空状态提示(当 connModel 为空时显示)
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Item {
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id: emptyHint
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anchors.fill: parent
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visible: root.connModel.length === 0
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Text {
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anchors.centerIn: parent
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text: qsTr("No active TCP connections")
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font.pixelSize: 13
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color: theme.textTertiary
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}
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}
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delegate: Rectangle {
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required property int index
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required property var modelData
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width: ListView.view.width
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height: 28
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radius: 4
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// 行 hover 高亮:浅色用淡黑、深色用淡白,保证两种卡片背景上均可见
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color: rowMouse.containsMouse ? theme.hoverBg : "transparent"
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RowLayout {
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anchors.fill: parent
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anchors.leftMargin: 8
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anchors.rightMargin: 8
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spacing: root.colSpacing
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Text {
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Layout.preferredWidth: root.colLocal
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text: modelData.localAddress + ":" + modelData.localPort
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font.pixelSize: 12
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color: theme.textPrimary
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elide: Text.ElideRight
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}
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Text {
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Layout.preferredWidth: root.colRemote
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text: modelData.remoteAddress + ":" + modelData.remotePort
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font.pixelSize: 12
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color: theme.textPrimary
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elide: Text.ElideRight
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}
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Text {
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Layout.preferredWidth: root.colState
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text: modelData.state
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font.pixelSize: 12
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color: theme.textSecondary
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elide: Text.ElideRight
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}
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Text {
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Layout.fillWidth: true
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// 进程名可能为空(反查失败),显示占位符避免空白行
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text: modelData.processName.length > 0 ? modelData.processName : "-"
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font.pixelSize: 12
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color: modelData.processName.length > 0 ? theme.textPrimary : theme.textTertiary
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elide: Text.ElideRight
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}
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}
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MouseArea {
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id: rowMouse
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anchors.fill: parent
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hoverEnabled: true
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}
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}
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}
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// 表头与底部汇总间的分隔线
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Rectangle {
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Layout.fillWidth: true
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Layout.preferredHeight: 1
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Layout.leftMargin: 16
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Layout.rightMargin: 16
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color: theme.lineColor
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}
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// 底部汇总行:连接总数
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RowLayout {
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Layout.fillWidth: true
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Layout.preferredHeight: 34
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Layout.leftMargin: 24
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Layout.rightMargin: 16
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spacing: root.colSpacing
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Text {
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Layout.fillWidth: true
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text: qsTr("Total: ") + root.connCount + qsTr(" connections")
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font.pixelSize: 12
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font.weight: Font.Bold
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color: theme.textPrimary
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}
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}
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}
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}
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// 数据刷新:C++ 每 5 秒更新并发射 tcpConnectionListChanged,据此重建清单;
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// 本窗口自身的 Timer 兜底,避免依赖信号时序
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Connections {
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target: root.applet
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function onTcpConnectionListChanged() {
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refreshModel()
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}
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}
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}
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@@ -384,6 +384,16 @@ AppletItem {
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}
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}
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// TCP 连接清单:屏幕居中独立窗口,展示当前所有 ESTABLISHED 状态的 TCP 连接
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Platform.MenuItem {
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text: qsTr("TCP Connections")
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onTriggered: {
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tcpConnectionsWindow.show()
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tcpConnectionsWindow.raise()
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tcpConnectionsWindow.requestActivate()
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}
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}
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Platform.MenuSeparator {}
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Platform.MenuItem {
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@@ -426,6 +436,16 @@ AppletItem {
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isDarkMode: root.isDarkMode
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}
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// TCP 连接清单窗口:屏幕居中独立窗口,展示当前所有 ESTABLISHED 状态的 TCP 连接
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// 依赖通过属性传入:accentColor = root.accentRed,applet = root.applet,
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// isDarkMode 取自上方 DockPalette 检测结果
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TcpConnectionsWindow {
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id: tcpConnectionsWindow
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accentColor: root.accentRed
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applet: root.applet
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isDarkMode: root.isDarkMode
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}
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// 设置窗口:独立顶层窗口,在桌面中间弹出
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// 设计原因:Dialog 使用父窗口(dock layer-surface)的 overlay,仅覆盖任务栏区域,
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// 无法在桌面中间显示。改用 Window 创建独立顶层窗口,可在桌面任意位置弹出。
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@@ -285,6 +285,12 @@ QJsonObject NetworkMonitorApplet::trafficLog() const
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return m_trafficLog;
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}
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// 返回 TCP 连接详情列表(QVariantList of QVariantMap),供 QML 连接清单窗口展示
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QVariantList NetworkMonitorApplet::tcpConnectionList() const
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{
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return m_tcpConnectionList;
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}
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// 返回当前活动接口的下行速度历史,转换为 QVariantList of QPointF 供 QML 使用
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// 设计原因:QPointF 仅携带 x/y 两个值,上传与下载分别对应两个列表;
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// 结果缓存于成员变量,仅当 m_historyDirty 时重建,避免 QML 每次读取都重新构造 300 个点
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@@ -500,6 +506,11 @@ void NetworkMonitorApplet::readNetworkStats()
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m_lowFreqCounter = 0;
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detectLowFreqStats();
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}
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// TCP 连接清单同样每 5 秒更新一次(进程名反查需遍历 /proc 开销大,不能每秒执行)
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if (++m_tcpListCounter >= 5) {
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m_tcpListCounter = 0;
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buildTcpConnectionList();
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}
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}
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void NetworkMonitorApplet::calculateSpeed()
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@@ -810,6 +821,81 @@ int NetworkMonitorApplet::countTcpConnections() const
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return count;
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}
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// 构建 TCP 连接详情列表(调用 ss 命令获取 ESTABLISHED 连接,含进程名反查)
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// 结果存入 m_tcpConnectionList(QVariantList of QVariantMap)并发射 tcpConnectionListChanged;
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// 仅保留 ESTABLISHED 状态连接。优雅降级:ss 命令不存在/执行失败时返回空列表,不崩溃
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// 设计原因:原先通过遍历 /proc/<pid>/fd 反查进程名,但 dde-shell 以普通用户运行,
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// 无权 readlink 其他进程的 fd(lr-x------ 权限),导致进程名全空;改用 ss 命令一次
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// 获取全部 ESTABLISHED 连接的地址/端口/进程名,ss 通过 netlink 获取信息不受 /proc 权限限制,
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// 且仍由 readNetworkStats 降频至每 5 秒调用一次(ss 启动子进程仍有开销)
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void NetworkMonitorApplet::buildTcpConnectionList()
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{
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QVariantList list;
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// 用 ss 命令获取 ESTABLISHED 连接(含进程名),通过 netlink 不受 /proc 权限限制
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// -t TCP, -n 不解析服务名(显示端口), -p 显示进程信息, state established 仅已建立连接
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QProcess process;
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process.start(QStringLiteral("ss"), {QStringLiteral("-tnp"), QStringLiteral("state"), QStringLiteral("established")});
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// ss 命令不存在或启动失败(如精简系统未安装 iproute2)时优雅降级:返回空列表,不崩溃
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if (!process.waitForStarted(1000)) {
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m_tcpConnectionList = list;
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emit tcpConnectionListChanged();
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return;
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||||
}
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process.waitForFinished(3000); // 3 秒超时,ss 卡住时不阻塞主线程过久
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||||
const QString output = QString::fromUtf8(process.readAllStandardOutput());
|
||||
|
||||
const QStringList lines = output.split(QLatin1Char('\n'), Qt::SkipEmptyParts);
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||||
for (int i = 0; i < lines.size(); ++i) {
|
||||
if (i == 0) continue; // 跳过表头(Recv-Q Send-Q ...)
|
||||
|
||||
const QString line = lines[i].trimmed();
|
||||
if (line.isEmpty()) continue;
|
||||
|
||||
// ss 输出按多空格分割:Recv-Q Send-Q Local:Port Peer:Port [Process]
|
||||
// 注意 Process 列可能为空,且 IPv6 地址形如 [::1]:port(方括号内无空格),
|
||||
// 用正则提取更可靠,可容忍列之间任意空白
|
||||
QRegularExpression re(QStringLiteral("(\\S+)\\s+(\\S+)\\s+(\\S+):(\\d+)\\s+(\\S+):(\\d+)\\s*(.*)"));
|
||||
QRegularExpressionMatch match = re.match(line);
|
||||
if (!match.hasMatch()) continue;
|
||||
|
||||
QString localAddress = match.captured(3);
|
||||
const QString localPort = match.captured(4);
|
||||
QString remoteAddress = match.captured(5);
|
||||
const QString remotePort = match.captured(6);
|
||||
const QString processField = match.captured(7).trimmed();
|
||||
|
||||
// 去掉地址中的接口后缀(如 192.168.3.83%wlp3s0 -> 192.168.3.83)
|
||||
localAddress = localAddress.split(QLatin1Char('%')).first();
|
||||
remoteAddress = remoteAddress.split(QLatin1Char('%')).first();
|
||||
// 去掉 IPv6 地址的方括号([::1] -> ::1)
|
||||
if (localAddress.startsWith(QLatin1Char('['))) localAddress = localAddress.mid(1, localAddress.size() - 2);
|
||||
if (remoteAddress.startsWith(QLatin1Char('['))) remoteAddress = remoteAddress.mid(1, remoteAddress.size() - 2);
|
||||
|
||||
// 提取进程名:users:(("进程名",pid=xxx,fd=xxx)),取第一个双引号内的内容
|
||||
QString processName;
|
||||
if (processField.startsWith(QStringLiteral("users:"))) {
|
||||
QRegularExpression nameRe(QStringLiteral("\\(\"([^\"]+)\""));
|
||||
QRegularExpressionMatch nameMatch = nameRe.match(processField);
|
||||
if (nameMatch.hasMatch()) {
|
||||
processName = nameMatch.captured(1);
|
||||
}
|
||||
}
|
||||
|
||||
QVariantMap item;
|
||||
item[QStringLiteral("localAddress")] = localAddress;
|
||||
item[QStringLiteral("localPort")] = localPort.toInt();
|
||||
item[QStringLiteral("remoteAddress")] = remoteAddress;
|
||||
item[QStringLiteral("remotePort")] = remotePort.toInt();
|
||||
item[QStringLiteral("state")] = QStringLiteral("ESTABLISHED");
|
||||
item[QStringLiteral("processName")] = processName;
|
||||
list.append(item);
|
||||
}
|
||||
|
||||
m_tcpConnectionList = list;
|
||||
emit tcpConnectionListChanged();
|
||||
}
|
||||
|
||||
// 读取指定接口的 WiFi 信号强度(dBm)
|
||||
// 仅无线接口(wlp/wlan)有效;/proc/net/wireless 桌面环境可能不存在(返回 0)
|
||||
// 该文件每行形如 "wlp3s0: 60. -65. -256 0 ...",level(dBm)为第 3 个数值字段
|
||||
|
||||
@@ -17,6 +17,8 @@
|
||||
#include <QColor>
|
||||
#include <QSettings>
|
||||
#include <QJsonObject>
|
||||
#include <QMetaType>
|
||||
#include <QVariantMap>
|
||||
|
||||
DS_BEGIN_NAMESPACE
|
||||
|
||||
@@ -92,6 +94,12 @@ class NetworkMonitorApplet : public DApplet
|
||||
// 保存频率:累加每秒执行(内存操作),写盘与通知 QML 降频(每 30 秒一次),
|
||||
// 避免每秒磁盘 IO 与 QML 重绘
|
||||
Q_PROPERTY(QJsonObject trafficLog READ trafficLog NOTIFY trafficLogChanged)
|
||||
// TCP 连接详情列表,供 QML 连接清单窗口展示
|
||||
// 每项为 QVariantMap(键:localAddress/localPort/remoteAddress/remotePort/state/processName)
|
||||
// 仅包含 ESTABLISHED 状态连接,含进程名反查
|
||||
// 设计原因:用 ss 命令反查进程名,通过 netlink 获取不受 /proc 权限限制,
|
||||
// 但仍需启动子进程开销较大,故降频至每 5 秒更新一次
|
||||
Q_PROPERTY(QVariantList tcpConnectionList READ tcpConnectionList NOTIFY tcpConnectionListChanged)
|
||||
|
||||
public:
|
||||
explicit NetworkMonitorApplet(QObject *parent = nullptr);
|
||||
@@ -138,6 +146,8 @@ public:
|
||||
void setTextColor(const QString &color);
|
||||
// 返回流量统计日志(JSON 对象),结构见 trafficLog 属性注释,供 QML 流量统计窗口读取
|
||||
QJsonObject trafficLog() const;
|
||||
// 返回 TCP 连接详情列表(QVariantList of QVariantMap),供 QML 连接清单窗口展示
|
||||
QVariantList tcpConnectionList() const;
|
||||
|
||||
// 定时器回调,由 m_refreshTimer 每秒调用。非 Q_INVOKABLE(QML 不应直接调用,
|
||||
// 否则会打破 1 秒定时间隔导致速度计算失真)
|
||||
@@ -167,6 +177,8 @@ signals:
|
||||
void textColorChanged();
|
||||
// 流量统计日志变化时通知 QML 更新(降频,每 30 秒发射一次)
|
||||
void trafficLogChanged();
|
||||
// TCP 连接详情列表变化时通知 QML 更新(降频,每 5 秒发射一次)
|
||||
void tcpConnectionListChanged();
|
||||
|
||||
private:
|
||||
void readNetworkStats();
|
||||
@@ -182,6 +194,9 @@ private:
|
||||
int parseIwBitrate(const QString &output) const;
|
||||
// 统计 /proc/net/tcp 与 tcp6 中 ESTABLISHED(状态 01)的连接数
|
||||
int countTcpConnections() const;
|
||||
// 构建 TCP 连接详情列表(调用 ss 命令获取 ESTABLISHED 连接,含进程名反查)
|
||||
// 结果存入 m_tcpConnectionList 并发射 tcpConnectionListChanged;仅 ESTABLISHED
|
||||
void buildTcpConnectionList();
|
||||
// 读取指定接口的 WiFi 信号强度(dBm),非无线接口或不可用时返回 0
|
||||
int detectWifiSignal(const QString &iface);
|
||||
// 判断是否为物理网卡(无线 wlp/wlan,有线 enp/eth),
|
||||
@@ -291,6 +306,15 @@ private:
|
||||
// 按日记录最多保留 90 天、按月最多保留 24 个月,超出自动裁剪最旧记录
|
||||
static constexpr int MAX_DAY_ENTRIES = 90;
|
||||
static constexpr int MAX_MONTH_ENTRIES = 24;
|
||||
|
||||
// ---- TCP 连接清单成员 ----
|
||||
// TCP 连接详情列表(QVariantList of QVariantMap),供 QML 连接清单窗口读取
|
||||
// 设计原因:QVariantMap 便于 QML 以 JS 对象直接访问各字段,
|
||||
// 不暴露中间结构体(需注册元类型,QML 访问繁琐)
|
||||
QVariantList m_tcpConnectionList;
|
||||
// TCP 连接清单降频计数器:ss 命令需启动子进程开销大,每 5 次 refresh 更新一次
|
||||
// 初始化 4 使首次 refresh 立即更新
|
||||
int m_tcpListCounter = 4;
|
||||
};
|
||||
|
||||
DS_END_NAMESPACE
|
||||
Reference in New Issue
Block a user