133 lines
3.3 KiB
TypeScript
133 lines
3.3 KiB
TypeScript
// 网络管理：智能检测内外网
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// 判断是否为内网IP地址
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function isInternalIP(hostname: string): boolean {
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// 如果是localhost
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if (hostname === 'localhost' || hostname === '127.0.0.1') {
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return true
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}
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// 判断是否为内网IP段
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// 10.0.0.0 - 10.255.255.255
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// 172.16.0.0 - 172.31.255.255
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// 192.168.0.0 - 192.168.255.255
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const ipv4Regex = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/
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const match = hostname.match(ipv4Regex)
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if (match) {
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const [, a, b] = match.map(Number)
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// 10.x.x.x
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if (a === 10) return true
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// 172.16.x.x - 172.31.x.x
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if (a === 172 && b >= 16 && b <= 31) return true
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// 192.168.x.x
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if (a === 192 && b === 168) return true
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}
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return false
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}
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function getCurrentHost(): string {
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if (typeof window === 'undefined') return ''
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return window.location.host
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}
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function getCurrentHostname(): string {
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if (typeof window === 'undefined') return ''
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return window.location.hostname
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}
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export interface NetworkStatus {
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isInternal: boolean
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host: string
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}
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let currentNetwork: NetworkStatus | null = null
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// 初始化网络检测（优先使用后端API获取准确状态）
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export async function initializeNetwork(): Promise<NetworkStatus> {
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if (typeof window === 'undefined') {
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return { isInternal: false, host: '' }
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}
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// 如果已经检测过，直接返回缓存结果
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if (currentNetwork) {
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return currentNetwork
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}
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const host = getCurrentHost()
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const hostname = getCurrentHostname()
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// 优先调用后端API获取准确的网络状态（后端可以通过请求头获取真实的客户端IP）
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try {
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const response = await fetch('/api/network-status', {
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cache: 'no-store', // 不缓存，确保获取最新状态
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})
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if (response.ok) {
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const data = await response.json()
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if (data.success) {
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currentNetwork = {
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isInternal: data.isIntranet,
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host
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}
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// 不输出IP和Hostname信息，避免在浏览器控制台暴露内网信息
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if (data.isIntranet) {
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console.log(`✅ 检测到内网访问`)
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} else {
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console.log(`🌐 检测到公网访问`)
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}
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return currentNetwork
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}
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}
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} catch (error) {
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console.warn('后端网络检测失败，使用前端判断:', error)
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}
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// 如果后端API调用失败，回退到前端判断（基于hostname）
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const isInternal = isInternalIP(hostname)
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currentNetwork = {
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isInternal,
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host
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}
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// 不输出hostname信息，避免在浏览器控制台暴露内网信息
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if (isInternal) {
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console.log(`✅ 检测到内网访问`)
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} else {
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console.log(`🌐 检测到公网访问`)
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}
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return currentNetwork
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}
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// 获取当前网络状态
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export function getNetworkStatus(): NetworkStatus {
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if (!currentNetwork) {
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const host = getCurrentHost()
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const hostname = getCurrentHostname()
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const isInternal = isInternalIP(hostname)
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return { isInternal, host }
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}
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return currentNetwork
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}
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// 获取API基础URL
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export function getApiBaseUrl(): string {
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if (!currentNetwork) {
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return '' // 使用相对路径
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}
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return currentNetwork.isInternal ? `http://${currentNetwork.host}` : ''
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}
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// 清除缓存（用于刷新网络状态）
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export function clearNetworkCache() {
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currentNetwork = null
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}
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