104 lines
5.2 KiB
Swift
104 lines
5.2 KiB
Swift
import CFNetwork
|
||
import Darwin
|
||
import Foundation
|
||
|
||
/// 本机的代理环境：VPN / 增强模式隧道、系统代理、DNS 是否被代理接管、正在运行的代理软件。
|
||
/// 只读系统配置，不发任何请求
|
||
public struct ProxyEnvironment: Sendable, Codable, Equatable {
|
||
public struct Proxy: Sendable, Codable, Equatable {
|
||
public enum Kind: String, Sendable, Codable { case http, https, socks }
|
||
public var kind: Kind
|
||
public var host: String
|
||
public var port: Int
|
||
}
|
||
|
||
/// 默认路由所在隧道的服务名（例如 Surge）与接口（utun6）
|
||
public var tunnelName: String?
|
||
public var tunnelInterface: String?
|
||
public var proxies: [Proxy]
|
||
/// 自动代理配置（PAC）地址
|
||
public var pacURL: String?
|
||
public var dnsServers: [String]
|
||
/// 承载流量的物理网卡，绕开代理时绑定它
|
||
public var physicalInterface: String?
|
||
public var physicalName: String?
|
||
public var localIPv4: [String]
|
||
/// 正在运行的代理 / VPN 软件
|
||
public var apps: [String]
|
||
|
||
public init(tunnelName: String? = nil, tunnelInterface: String? = nil, proxies: [Proxy] = [], pacURL: String? = nil,
|
||
dnsServers: [String] = [], physicalInterface: String? = nil, physicalName: String? = nil,
|
||
localIPv4: [String] = [], apps: [String] = []) {
|
||
self.tunnelName = tunnelName
|
||
self.tunnelInterface = tunnelInterface
|
||
self.proxies = proxies
|
||
self.pacURL = pacURL
|
||
self.dnsServers = dnsServers
|
||
self.physicalInterface = physicalInterface
|
||
self.physicalName = physicalName
|
||
self.localIPv4 = localIPv4
|
||
self.apps = apps
|
||
}
|
||
|
||
/// 配置了任何一种代理：隧道、系统代理或 PAC
|
||
public var hasProxy: Bool { tunnelInterface != nil || !proxies.isEmpty || pacURL != nil }
|
||
|
||
/// DNS 指向 198.18.0.0/15：Surge、Clash 等的 fake-ip，域名解析由代理接管
|
||
public var usesFakeIPDNS: Bool { dnsServers.contains(where: Self.isFakeIP) }
|
||
|
||
/// 网络环境的指纹：隧道、代理、网卡或本地地址变了，之前的检测结果就不再代表当前网络
|
||
public var signature: String {
|
||
[tunnelInterface ?? "", proxies.map { "\($0.kind.rawValue)\($0.host):\($0.port)" }.joined(separator: ","),
|
||
pacURL ?? "", physicalInterface ?? "", localIPv4.joined(separator: ","), dnsServers.joined(separator: ",")]
|
||
.joined(separator: "|")
|
||
}
|
||
|
||
static func isFakeIP(_ address: String) -> Bool {
|
||
var v4 = in_addr()
|
||
guard inet_pton(AF_INET, address, &v4) == 1 else { return false }
|
||
let value = UInt32(bigEndian: v4.s_addr)
|
||
return value >> 17 == (198 << 24 | 18 << 16) >> 17
|
||
}
|
||
}
|
||
|
||
public enum ProxyEnvironmentReader {
|
||
/// 按应用名识别的常见代理与 VPN 软件
|
||
static let knownApps = [
|
||
"Surge", "ClashX", "ClashX Pro", "ClashX Meta", "Clash Verge", "Clash Nyanpasu", "Mihomo Party", "FlClash",
|
||
"Stash", "Shadowrocket", "Quantumult X", "Loon", "sing-box", "SFM", "Hiddify", "V2rayU", "V2RayXS", "NekoRay",
|
||
"Tailscale", "WireGuard", "Cloudflare WARP", "Mullvad VPN", "NordVPN", "ExpressVPN", "Proton VPN", "Surfshark",
|
||
"Astrill", "Outline", "Tunnelblick", "Viscosity", "OpenVPN Connect", "GlobalProtect", "Cisco Secure Client",
|
||
"FortiClient", "Zscaler",
|
||
]
|
||
|
||
/// `runningAppNames` 由界面层从 NSWorkspace 取，这里不依赖 AppKit
|
||
public static func read(details: NetworkDetails, runningAppNames: [String]) -> ProxyEnvironment {
|
||
let settings = CFNetworkCopySystemProxySettings()?.takeRetainedValue() as? [String: Any] ?? [:]
|
||
let (proxies, pac) = parseProxies(settings)
|
||
return ProxyEnvironment(tunnelName: details.tunnel?.name, tunnelInterface: details.tunnel?.bsdName,
|
||
proxies: proxies, pacURL: pac, dnsServers: details.dnsServers,
|
||
physicalInterface: details.physical?.bsdName, physicalName: details.physical?.displayName,
|
||
localIPv4: details.physical?.ipv4 ?? [], apps: proxyApps(in: runningAppNames))
|
||
}
|
||
|
||
static func parseProxies(_ settings: [String: Any]) -> ([ProxyEnvironment.Proxy], pac: String?) {
|
||
func enabled(_ key: String) -> Bool { (settings[key] as? NSNumber)?.boolValue == true }
|
||
var proxies: [ProxyEnvironment.Proxy] = []
|
||
for (kind, prefix) in [(ProxyEnvironment.Proxy.Kind.http, "HTTP"), (.https, "HTTPS"), (.socks, "SOCKS")] {
|
||
guard enabled("\(prefix)Enable"), let host = settings["\(prefix)Proxy"] as? String, !host.isEmpty else { continue }
|
||
let port = (settings["\(prefix)Port"] as? NSNumber)?.intValue ?? 0
|
||
proxies.append(.init(kind: kind, host: host, port: port))
|
||
}
|
||
let pac = enabled("ProxyAutoConfigEnable") ? (settings["ProxyAutoConfigURLString"] as? String).flatMap { $0.isEmpty ? nil : $0 } : nil
|
||
return (proxies, pac)
|
||
}
|
||
|
||
static func proxyApps(in names: [String]) -> [String] {
|
||
var found: [String] = []
|
||
for name in names where knownApps.contains(where: { name == $0 || name.hasPrefix($0 + " ") }) && !found.contains(name) {
|
||
found.append(name)
|
||
}
|
||
return found
|
||
}
|
||
}
|