118 lines
3.9 KiB
JavaScript
118 lines
3.9 KiB
JavaScript
const net = require('net');
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class Ip {
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static async parseNetworkInfo(output) {
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// 初始化结果对象
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const result = {
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interface: '',
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flags: [],
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mtu: '',
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state: '',
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ipv6Addresses: []
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};
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// 按行分割输入
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const lines = output.split('\n').map(line => line.trim());
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// 解析第一行的基本信息
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if (lines.length > 0) {
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const firstLineParts = lines[0].split(/\s+/);
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// 提取接口名称
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result.interface = firstLineParts[1].replace(':', '');
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// 提取标志
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if (firstLineParts[2] && firstLineParts[2].startsWith('<') && firstLineParts[2].endsWith('>')) {
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result.flags = firstLineParts[2].slice(1, -1).split(',');
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}
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// 提取MTU
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const mtuIndex = firstLineParts.indexOf('mtu');
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if (mtuIndex !== -1 && mtuIndex + 1 < firstLineParts.length) {
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result.mtu = firstLineParts[mtuIndex + 1];
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}
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// 提取状态
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const stateIndex = firstLineParts.indexOf('state');
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if (stateIndex !== -1 && stateIndex + 1 < firstLineParts.length) {
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result.state = firstLineParts[stateIndex + 1];
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}
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}
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// 解析IPv6地址信息
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let currentIpv6 = null;
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for (let i = 1; i < lines.length; i++) {
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const line = lines[i];
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if (line.startsWith('inet6')) {
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// 如果有当前正在处理的IPv6地址，先保存
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if (currentIpv6) {
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result.ipv6Addresses.push(currentIpv6);
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}
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// 开始解析新的IPv6地址
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const parts = line.split(/\s+/);
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const ipv6Address = parts[1].split("/")[0]
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currentIpv6 = {
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local: ipv6Address.includes("fe80"),
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connect: await Ip.checkIPv6WithTcp(ipv6Address),
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address: ipv6Address,
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scope: parts[2].replace('scope', ''),
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properties: parts.slice(3),
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validLft: '',
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preferredLft: ''
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};
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} else if (currentIpv6 && line.includes('valid_lft')) {
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// 解析有效期信息
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const lftParts = line.split(/\s+/);
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currentIpv6.validLft = lftParts[0].replace('valid_lft', '');
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currentIpv6.preferredLft = lftParts[1].replace('preferred_lft', '');
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}
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}
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// 添加最后一个IPv6地址
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if (currentIpv6) {
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result.ipv6Addresses.push(currentIpv6);
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}
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return result;
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}
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/**
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* 检测IPv6地址是否可访问（通过尝试建立TCP连接）
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* @param {string} ipv6 - 要检测的IPv6地址
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* @param {number} port - 目标端口，默认 21100
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* @param {number} timeout - 超时时间（毫秒），默认1000
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* @returns {Promise<boolean>} - 是否可访问
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*/
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static checkIPv6WithTcp(ipv6, port = 21100, timeout = 1000) {
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return new Promise((resolve) => {
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// 验证IPv6格式
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if (!net.isIPv6(ipv6)) {
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resolve(false);
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return;
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}
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const socket = new net.Socket({ family: 6 }); // 指定IPv6
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// 设置超时
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const timer = setTimeout(() => {
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socket.destroy();
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resolve(false);
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}, timeout);
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// 尝试连接
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socket.connect(port, ipv6, () => {
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clearTimeout(timer);
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socket.destroy();
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resolve(true);
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});
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// 错误处理
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socket.on('error', () => {
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clearTimeout(timer);
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resolve(false);
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});
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});
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}
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}
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module.exports = Ip |