319 lines
7.6 KiB
Go
319 lines
7.6 KiB
Go
package executor
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import (
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"fmt"
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"net"
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"os"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"github.com/Dreamacro/clash/adapter"
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"github.com/Dreamacro/clash/adapter/outboundgroup"
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"github.com/Dreamacro/clash/component/auth"
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"github.com/Dreamacro/clash/component/dialer"
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"github.com/Dreamacro/clash/component/iface"
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"github.com/Dreamacro/clash/component/profile"
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"github.com/Dreamacro/clash/component/profile/cachefile"
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"github.com/Dreamacro/clash/component/resolver"
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"github.com/Dreamacro/clash/component/trie"
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"github.com/Dreamacro/clash/config"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/constant/provider"
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"github.com/Dreamacro/clash/dns"
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P "github.com/Dreamacro/clash/listener"
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authStore "github.com/Dreamacro/clash/listener/auth"
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"github.com/Dreamacro/clash/listener/tproxy"
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"github.com/Dreamacro/clash/listener/tun/dev"
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"github.com/Dreamacro/clash/log"
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"github.com/Dreamacro/clash/tunnel"
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)
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var mux sync.Mutex
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func readConfig(path string) ([]byte, error) {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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return nil, err
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}
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data, err := os.ReadFile(path)
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if err != nil {
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return nil, err
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}
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if len(data) == 0 {
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return nil, fmt.Errorf("configuration file %s is empty", path)
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}
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return data, err
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}
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// Parse config with default config path
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func Parse() (*config.Config, error) {
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return ParseWithPath(C.Path.Config())
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}
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// ParseWithPath parse config with custom config path
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func ParseWithPath(path string) (*config.Config, error) {
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buf, err := readConfig(path)
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if err != nil {
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return nil, err
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}
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return ParseWithBytes(buf)
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}
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// ParseWithBytes config with buffer
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func ParseWithBytes(buf []byte) (*config.Config, error) {
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return config.Parse(buf)
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}
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// ApplyConfig dispatch configure to all parts
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func ApplyConfig(cfg *config.Config, force bool) {
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mux.Lock()
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defer mux.Unlock()
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updateUsers(cfg.Users)
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updateProxies(cfg.Proxies, cfg.Providers)
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updateRules(cfg.Rules)
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updateHosts(cfg.Hosts)
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updateProfile(cfg)
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updateIPTables(cfg.DNS, cfg.General)
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updateDNS(cfg.DNS, cfg.General)
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updateGeneral(cfg.General, force)
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updateExperimental(cfg)
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}
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func GetGeneral() *config.General {
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ports := P.GetPorts()
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authenticator := []string{}
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if auth := authStore.Authenticator(); auth != nil {
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authenticator = auth.Users()
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}
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general := &config.General{
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Inbound: config.Inbound{
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Port: ports.Port,
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SocksPort: ports.SocksPort,
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RedirPort: ports.RedirPort,
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TProxyPort: ports.TProxyPort,
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MixedPort: ports.MixedPort,
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Tun: P.Tun(),
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Authentication: authenticator,
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AllowLan: P.AllowLan(),
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BindAddress: P.BindAddress(),
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},
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Mode: tunnel.Mode(),
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LogLevel: log.Level(),
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IPv6: !resolver.DisableIPv6,
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}
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return general
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}
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func updateExperimental(c *config.Config) {}
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func updateDNS(c *config.DNS, general *config.General) {
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if !c.Enable {
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resolver.DefaultResolver = nil
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resolver.DefaultHostMapper = nil
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dns.ReCreateServer("", nil, nil)
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return
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}
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cfg := dns.Config{
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Main: c.NameServer,
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Fallback: c.Fallback,
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IPv6: c.IPv6,
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EnhancedMode: c.EnhancedMode,
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Pool: c.FakeIPRange,
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Hosts: c.Hosts,
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FallbackFilter: dns.FallbackFilter{
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GeoIP: c.FallbackFilter.GeoIP,
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GeoIPCode: c.FallbackFilter.GeoIPCode,
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IPCIDR: c.FallbackFilter.IPCIDR,
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Domain: c.FallbackFilter.Domain,
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},
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Default: c.DefaultNameserver,
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Policy: c.NameServerPolicy,
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}
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r := dns.NewResolver(cfg)
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m := dns.NewEnhancer(cfg)
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// reuse cache of old host mapper
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if old := resolver.DefaultHostMapper; old != nil {
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m.PatchFrom(old.(*dns.ResolverEnhancer))
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}
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resolver.DefaultResolver = r
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resolver.DefaultHostMapper = m
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if general.Tun.Enable && strings.EqualFold(general.Tun.Stack, "system") {
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resolver.DefaultLocalServer = dns.NewLocalServer(r, m)
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}
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if err := dns.ReCreateServer(c.Listen, r, m); err != nil {
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log.Errorln("Start DNS server error: %s", err.Error())
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return
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}
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if c.Listen != "" {
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log.Infoln("DNS server listening at: %s", c.Listen)
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}
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}
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func updateHosts(tree *trie.DomainTrie) {
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resolver.DefaultHosts = tree
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}
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func updateProxies(proxies map[string]C.Proxy, providers map[string]provider.ProxyProvider) {
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tunnel.UpdateProxies(proxies, providers)
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}
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func updateRules(rules []C.Rule) {
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tunnel.UpdateRules(rules)
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}
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func updateGeneral(general *config.General, force bool) {
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tunnel.SetMode(general.Mode)
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resolver.DisableIPv6 = !general.IPv6
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if (general.Tun.Enable || general.TProxyPort != 0) && general.Interface == "" {
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autoDetectInterfaceName, err := dev.GetAutoDetectInterface()
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if err == nil {
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if autoDetectInterfaceName != "" && autoDetectInterfaceName != "<nil>" {
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general.Interface = autoDetectInterfaceName
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log.Infoln("Use auto detect interface: %s", general.Interface)
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} else {
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log.Debugln("Auto detect interface is empty.")
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}
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} else {
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log.Debugln("Can not find auto detect interface. %s", err.Error())
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}
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}
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if general.Interface != "" {
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dialer.DefaultOptions = []dialer.Option{dialer.WithInterface(general.Interface)}
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} else {
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dialer.DefaultOptions = nil
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}
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iface.FlushCache()
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if !force {
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log.SetLevel(general.LogLevel)
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return
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}
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allowLan := general.AllowLan
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P.SetAllowLan(allowLan)
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bindAddress := general.BindAddress
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P.SetBindAddress(bindAddress)
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tcpIn := tunnel.TCPIn()
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udpIn := tunnel.UDPIn()
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if err := P.ReCreateHTTP(general.Port, tcpIn); err != nil {
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log.Errorln("Start HTTP server error: %s", err.Error())
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}
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if err := P.ReCreateSocks(general.SocksPort, tcpIn, udpIn); err != nil {
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log.Errorln("Start SOCKS server error: %s", err.Error())
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}
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if err := P.ReCreateRedir(general.RedirPort, tcpIn, udpIn); err != nil {
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log.Errorln("Start Redir server error: %s", err.Error())
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}
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if err := P.ReCreateTProxy(general.TProxyPort, tcpIn, udpIn); err != nil {
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log.Errorln("Start TProxy server error: %s", err.Error())
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}
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if err := P.ReCreateMixed(general.MixedPort, tcpIn, udpIn); err != nil {
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log.Errorln("Start Mixed(http and socks) server error: %s", err.Error())
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}
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if err := P.ReCreateTun(general.Tun, tcpIn, udpIn); err != nil {
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log.Errorln("Start Tun interface error: %s", err.Error())
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os.Exit(2)
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}
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log.SetLevel(general.LogLevel)
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}
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func updateUsers(users []auth.AuthUser) {
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authenticator := auth.NewAuthenticator(users)
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authStore.SetAuthenticator(authenticator)
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if authenticator != nil {
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log.Infoln("Authentication of local server updated")
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}
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}
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func updateProfile(cfg *config.Config) {
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profileCfg := cfg.Profile
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profile.StoreSelected.Store(profileCfg.StoreSelected)
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if profileCfg.StoreSelected {
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patchSelectGroup(cfg.Proxies)
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}
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}
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func patchSelectGroup(proxies map[string]C.Proxy) {
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mapping := cachefile.Cache().SelectedMap()
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if mapping == nil {
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return
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}
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for name, proxy := range proxies {
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outbound, ok := proxy.(*adapter.Proxy)
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if !ok {
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continue
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}
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selector, ok := outbound.ProxyAdapter.(*outboundgroup.Selector)
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if !ok {
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continue
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}
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selected, exist := mapping[name]
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if !exist {
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continue
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}
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selector.Set(selected)
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}
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}
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func updateIPTables(dns *config.DNS, general *config.General) {
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if runtime.GOOS != "linux" || dns.Listen == "" || general.TProxyPort == 0 || general.Tun.Enable {
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return
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}
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_, dnsPortStr, err := net.SplitHostPort(dns.Listen)
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if dnsPortStr == "0" || dnsPortStr == "" || err != nil {
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return
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}
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dnsPort, err := strconv.Atoi(dnsPortStr)
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if err != nil {
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return
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}
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tproxy.CleanUpTProxyLinuxIPTables()
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err = tproxy.SetTProxyLinuxIPTables(general.Interface, general.TProxyPort, dnsPort)
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if err != nil {
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log.Errorln("Can not setting iptables for TProxy on linux, %s", err.Error())
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os.Exit(2)
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}
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}
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func CleanUp() {
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P.CleanUp()
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if runtime.GOOS == "linux" {
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tproxy.CleanUpTProxyLinuxIPTables()
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}
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}
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