301 lines
7.5 KiB
Go
301 lines
7.5 KiB
Go
package config
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import (
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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adapters "github.com/Dreamacro/clash/adapters/outbound"
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"github.com/Dreamacro/clash/common/structure"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/clash/log"
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R "github.com/Dreamacro/clash/rules"
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T "github.com/Dreamacro/clash/tunnel"
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yaml "gopkg.in/yaml.v2"
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)
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// General config
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type General struct {
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Port int `json:"port"`
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SocksPort int `json:"socks-port"`
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RedirPort int `json:"redir-port"`
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AllowLan bool `json:"allow-lan"`
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Mode T.Mode `json:"mode"`
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LogLevel log.LogLevel `json:"log-level"`
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ExternalController string `json:"external-controller,omitempty"`
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Secret string `json:"secret,omitempty"`
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}
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type rawConfig struct {
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Port int `yaml:"port"`
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SocksPort int `yaml:"socks-port"`
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RedirPort int `yaml:"redir-port"`
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AllowLan bool `yaml:"allow-lan"`
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Mode string `yaml:"mode"`
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LogLevel string `yaml:"log-level"`
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ExternalController string `yaml:"external-controller"`
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Secret string `yaml:"secret"`
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Proxy []map[string]interface{} `yaml:"Proxy"`
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ProxyGroup []map[string]interface{} `yaml:"Proxy Group"`
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Rule []string `yaml:"Rule"`
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}
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// Config is clash config manager
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type Config struct {
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General *General
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Rules []C.Rule
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Proxies map[string]C.Proxy
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}
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func readConfig(path string) (*rawConfig, 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 := ioutil.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", C.Path.Config())
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}
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// config with some default value
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rawConfig := &rawConfig{
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AllowLan: false,
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Mode: T.Rule.String(),
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LogLevel: log.INFO.String(),
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Rule: []string{},
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Proxy: []map[string]interface{}{},
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ProxyGroup: []map[string]interface{}{},
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}
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err = yaml.Unmarshal([]byte(data), &rawConfig)
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return rawConfig, err
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}
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// Parse config
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func Parse(path string) (*Config, error) {
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config := &Config{}
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rawCfg, 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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general, err := parseGeneral(rawCfg)
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if err != nil {
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return nil, err
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}
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config.General = general
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proxies, err := parseProxies(rawCfg)
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if err != nil {
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return nil, err
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}
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config.Proxies = proxies
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rules, err := parseRules(rawCfg)
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if err != nil {
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return nil, err
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}
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config.Rules = rules
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return config, nil
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}
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func parseGeneral(cfg *rawConfig) (*General, error) {
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port := cfg.Port
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socksPort := cfg.SocksPort
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redirPort := cfg.RedirPort
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allowLan := cfg.AllowLan
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logLevelString := cfg.LogLevel
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modeString := cfg.Mode
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externalController := cfg.ExternalController
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secret := cfg.Secret
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mode, exist := T.ModeMapping[modeString]
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if !exist {
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return nil, fmt.Errorf("General.mode value invalid")
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}
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logLevel, exist := log.LogLevelMapping[logLevelString]
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if !exist {
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return nil, fmt.Errorf("General.log-level value invalid")
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}
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general := &General{
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Port: port,
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SocksPort: socksPort,
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RedirPort: redirPort,
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AllowLan: allowLan,
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Mode: mode,
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LogLevel: logLevel,
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ExternalController: externalController,
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Secret: secret,
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}
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return general, nil
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}
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func parseProxies(cfg *rawConfig) (map[string]C.Proxy, error) {
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proxies := make(map[string]C.Proxy)
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proxiesConfig := cfg.Proxy
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groupsConfig := cfg.ProxyGroup
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decoder := structure.NewDecoder(structure.Option{TagName: "proxy", WeaklyTypedInput: true})
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proxies["DIRECT"] = adapters.NewDirect()
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proxies["REJECT"] = adapters.NewReject()
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// parse proxy
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for idx, mapping := range proxiesConfig {
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proxyType, existType := mapping["type"].(string)
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if !existType {
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return nil, fmt.Errorf("Proxy %d missing type", idx)
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}
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var proxy C.Proxy
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var err error
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switch proxyType {
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case "ss":
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ssOption := &adapters.ShadowSocksOption{}
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err = decoder.Decode(mapping, ssOption)
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if err != nil {
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break
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}
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proxy, err = adapters.NewShadowSocks(*ssOption)
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case "socks5":
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socksOption := &adapters.Socks5Option{}
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err = decoder.Decode(mapping, socksOption)
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if err != nil {
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break
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}
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proxy = adapters.NewSocks5(*socksOption)
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case "vmess":
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vmessOption := &adapters.VmessOption{}
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err = decoder.Decode(mapping, vmessOption)
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if err != nil {
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break
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}
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proxy, err = adapters.NewVmess(*vmessOption)
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default:
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return nil, fmt.Errorf("Unsupport proxy type: %s", proxyType)
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}
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if err != nil {
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return nil, fmt.Errorf("Proxy [%d]: %s", idx, err.Error())
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}
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if _, exist := proxies[proxy.Name()]; exist {
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return nil, fmt.Errorf("Proxy %s is the duplicate name", proxy.Name())
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}
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proxies[proxy.Name()] = proxy
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}
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// parse proxy group
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for idx, mapping := range groupsConfig {
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groupType, existType := mapping["type"].(string)
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groupName, existName := mapping["name"].(string)
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if !existType && existName {
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return nil, fmt.Errorf("ProxyGroup %d: missing type or name", idx)
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}
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if _, exist := proxies[groupName]; exist {
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return nil, fmt.Errorf("ProxyGroup %s: the duplicate name", groupName)
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}
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var group C.Proxy
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var err error
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switch groupType {
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case "url-test":
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urlTestOption := &adapters.URLTestOption{}
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err = decoder.Decode(mapping, urlTestOption)
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if err != nil {
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break
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}
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ps, err := getProxies(proxies, urlTestOption.Proxies)
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if err != nil {
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return nil, fmt.Errorf("ProxyGroup %s: %s", groupName, err.Error())
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}
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group, err = adapters.NewURLTest(*urlTestOption, ps)
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case "select":
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selectorOption := &adapters.SelectorOption{}
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err = decoder.Decode(mapping, selectorOption)
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if err != nil {
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break
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}
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ps, err := getProxies(proxies, selectorOption.Proxies)
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if err != nil {
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return nil, fmt.Errorf("ProxyGroup %s: %s", groupName, err.Error())
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}
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group, err = adapters.NewSelector(selectorOption.Name, ps)
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case "fallback":
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fallbackOption := &adapters.FallbackOption{}
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err = decoder.Decode(mapping, fallbackOption)
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if err != nil {
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break
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}
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ps, err := getProxies(proxies, fallbackOption.Proxies)
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if err != nil {
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return nil, fmt.Errorf("ProxyGroup %s: %s", groupName, err.Error())
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}
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group, err = adapters.NewFallback(*fallbackOption, ps)
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}
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if err != nil {
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return nil, fmt.Errorf("Proxy %s: %s", groupName, err.Error())
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}
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proxies[groupName] = group
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}
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var ps []C.Proxy
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for _, v := range proxies {
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ps = append(ps, v)
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}
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proxies["GLOBAL"], _ = adapters.NewSelector("GLOBAL", ps)
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// close old goroutine
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for _, proxy := range proxies {
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switch raw := proxy.(type) {
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case *adapters.URLTest:
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raw.Close()
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case *adapters.Fallback:
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raw.Close()
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}
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}
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return proxies, nil
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}
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func parseRules(cfg *rawConfig) ([]C.Rule, error) {
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rules := []C.Rule{}
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rulesConfig := cfg.Rule
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// parse rules
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for _, line := range rulesConfig {
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rule := strings.Split(line, ",")
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if len(rule) < 3 {
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continue
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}
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rule = trimArr(rule)
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switch rule[0] {
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case "DOMAIN":
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rules = append(rules, R.NewDomain(rule[1], rule[2]))
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case "DOMAIN-SUFFIX":
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rules = append(rules, R.NewDomainSuffix(rule[1], rule[2]))
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case "DOMAIN-KEYWORD":
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rules = append(rules, R.NewDomainKeyword(rule[1], rule[2]))
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case "GEOIP":
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rules = append(rules, R.NewGEOIP(rule[1], rule[2]))
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case "IP-CIDR", "IP-CIDR6":
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rules = append(rules, R.NewIPCIDR(rule[1], rule[2]))
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case "FINAL":
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rules = append(rules, R.NewFinal(rule[2]))
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}
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}
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return rules, nil
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}
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