mirror of
https://github.com/MetaCubeX/mihomo.git
synced 2026-10-12 02:08:11 +08:00
260 lines
8.1 KiB
Go
260 lines
8.1 KiB
Go
package outboundgroup
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/dlclark/regexp2"
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"github.com/metacubex/mihomo/adapter/provider"
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"github.com/metacubex/mihomo/common/structure"
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"github.com/metacubex/mihomo/common/utils"
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C "github.com/metacubex/mihomo/constant"
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P "github.com/metacubex/mihomo/constant/provider"
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"github.com/metacubex/mihomo/log"
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)
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var (
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errFormat = errors.New("format error")
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errType = errors.New("unsupported type")
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errMissProxy = errors.New("`use` or `proxies` missing")
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errDuplicateProvider = errors.New("duplicate provider name")
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)
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type GroupCommonOption struct {
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Name string `group:"name"`
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Type string `group:"type"`
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Proxies []string `group:"proxies,omitempty"`
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Use []string `group:"use,omitempty"`
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URL string `group:"url,omitempty"`
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Interval int `group:"interval,omitempty"`
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TestTimeout int `group:"timeout,omitempty"`
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MaxFailedTimes int `group:"max-failed-times,omitempty"`
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EmptyFallback string `group:"empty-fallback,omitempty"`
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Lazy bool `group:"lazy,omitempty"`
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DisableUDP bool `group:"disable-udp,omitempty"`
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Filter string `group:"filter,omitempty"`
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ExcludeFilter string `group:"exclude-filter,omitempty"`
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ExcludeType string `group:"exclude-type,omitempty"`
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ExpectedStatus string `group:"expected-status,omitempty"`
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IncludeAll bool `group:"include-all,omitempty"`
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IncludeAllProxies bool `group:"include-all-proxies,omitempty"`
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IncludeAllProviders bool `group:"include-all-providers,omitempty"`
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Hidden bool `group:"hidden,omitempty"`
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Icon string `group:"icon,omitempty"`
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}
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func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, providersMap map[string]P.ProxyProvider, AllProxies []string, AllProviders []string) (ProxyGroup, error) {
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decoder := structure.NewDecoder(structure.Option{TagName: "group", WeaklyTypedInput: true})
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groupOption := GroupCommonOption{
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Lazy: true,
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}
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if err := decoder.Decode(config, &groupOption); err != nil {
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return nil, errFormat
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}
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if groupOption.Type == "" || groupOption.Name == "" {
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return nil, errFormat
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}
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if _, ok := config["routing-mark"]; ok {
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log.Errorln("The group [%s] with routing-mark configuration was removed, please set it directly on the proxy instead", groupOption.Name)
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}
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if _, ok := config["interface-name"]; ok {
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log.Errorln("The group [%s] with interface-name configuration was removed, please set it directly on the proxy instead", groupOption.Name)
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}
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if _, ok := config["dialer-proxy"]; ok {
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log.Errorln("The group [%s] with dialer-proxy configuration is not allowed, please set it directly on the proxy instead", groupOption.Name)
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}
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groupName := groupOption.Name
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if groupOption.EmptyFallback == "" {
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groupOption.EmptyFallback = "COMPATIBLE"
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}
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emptyFallback, ok := proxyMap[groupOption.EmptyFallback]
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if !ok {
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return nil, fmt.Errorf("%s: empty fallback proxy '%s' not found", groupName, groupOption.EmptyFallback)
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}
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if _, ok := emptyFallback.Adapter().(ProxyGroup); ok { // strictly forbidden to fill in a proxy group for empty-fallback
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return nil, fmt.Errorf("%s: empty fallback proxy '%s' not found", groupName, groupOption.EmptyFallback)
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}
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providers := []P.ProxyProvider{}
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if groupOption.IncludeAll {
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groupOption.IncludeAllProviders = true
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groupOption.IncludeAllProxies = true
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}
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if groupOption.IncludeAllProviders {
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groupOption.Use = AllProviders
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}
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if groupOption.IncludeAllProxies {
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if groupOption.Filter != "" {
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var filterRegs []*regexp2.Regexp
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for _, filter := range strings.Split(groupOption.Filter, "`") {
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filterReg := regexp2.MustCompile(filter, regexp2.None)
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filterRegs = append(filterRegs, filterReg)
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}
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for _, p := range AllProxies {
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for _, filterReg := range filterRegs {
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if mat, _ := filterReg.MatchString(p); mat {
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groupOption.Proxies = append(groupOption.Proxies, p)
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}
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}
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}
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} else {
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groupOption.Proxies = append(groupOption.Proxies, AllProxies...)
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}
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if len(groupOption.Proxies) == 0 && len(groupOption.Use) == 0 {
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groupOption.Proxies = []string{groupOption.EmptyFallback}
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}
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}
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if len(groupOption.Proxies) == 0 && len(groupOption.Use) == 0 {
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return nil, fmt.Errorf("%s: %w", groupName, errMissProxy)
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}
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expectedStatus, err := utils.NewUnsignedRanges[uint16](groupOption.ExpectedStatus)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", groupName, err)
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}
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status := strings.TrimSpace(groupOption.ExpectedStatus)
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if status == "" {
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status = "*"
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}
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groupOption.ExpectedStatus = status
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if len(groupOption.Use) != 0 {
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PDs, err := getProviders(providersMap, groupOption.Use)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", groupName, err)
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}
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// if test URL is empty, use the first health check URL of providers
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if groupOption.URL == "" {
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for _, pd := range PDs {
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if pd.HealthCheckURL() != "" {
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groupOption.URL = pd.HealthCheckURL()
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break
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}
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}
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if groupOption.URL == "" {
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groupOption.URL = C.DefaultTestURL
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}
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} else {
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addTestUrlToProviders(PDs, groupOption.URL, expectedStatus, groupOption.Filter, uint(groupOption.Interval))
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}
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providers = append(providers, PDs...)
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}
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if len(groupOption.Proxies) != 0 {
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ps, err := getProxies(proxyMap, groupOption.Proxies)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", groupName, err)
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}
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if _, ok := providersMap[groupName]; ok {
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return nil, fmt.Errorf("%s: %w", groupName, errDuplicateProvider)
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}
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if groupOption.URL == "" {
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groupOption.URL = C.DefaultTestURL
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}
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// select don't need auto health check
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if groupOption.Type != "select" && groupOption.Type != "relay" {
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if groupOption.Interval == 0 {
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groupOption.Interval = 300
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}
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}
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hc := provider.NewHealthCheck(ps, groupOption.URL, uint(groupOption.TestTimeout), uint(groupOption.Interval), groupOption.Lazy, expectedStatus)
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pd, err := provider.NewCompatibleProvider(groupName, ps, hc)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", groupName, err)
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}
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providers = append([]P.ProxyProvider{pd}, providers...)
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providersMap[groupName] = pd
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}
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switch groupOption.Type {
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case "url-test":
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opt := URLTestOption{}
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err = decoder.Decode(config, &opt)
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if err != nil {
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return nil, err
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}
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return NewURLTest(groupOption, opt, emptyFallback, providers)
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case "select":
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opt := SelectorOption{}
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err = decoder.Decode(config, &opt)
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if err != nil {
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return nil, err
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}
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return NewSelector(groupOption, opt, emptyFallback, providers)
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case "fallback":
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opt := FallbackOption{}
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err = decoder.Decode(config, &opt)
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if err != nil {
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return nil, err
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}
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return NewFallback(groupOption, opt, emptyFallback, providers)
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case "load-balance":
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opt := LoadBalanceOption{}
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err = decoder.Decode(config, &opt)
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if err != nil {
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return nil, err
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}
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return NewLoadBalance(groupOption, opt, emptyFallback, providers)
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case "relay":
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return nil, fmt.Errorf("%w: The group [%s] with relay type was removed, please using dialer-proxy instead", errType, groupName)
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default:
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return nil, fmt.Errorf("%w: %s", errType, groupOption.Type)
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}
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}
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func getProxies(mapping map[string]C.Proxy, list []string) ([]C.Proxy, error) {
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var ps []C.Proxy
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for _, name := range list {
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p, ok := mapping[name]
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if !ok {
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return nil, fmt.Errorf("'%s' not found", name)
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}
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ps = append(ps, p)
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}
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return ps, nil
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}
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func getProviders(mapping map[string]P.ProxyProvider, list []string) ([]P.ProxyProvider, error) {
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var ps []P.ProxyProvider
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for _, name := range list {
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p, ok := mapping[name]
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if !ok {
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return nil, fmt.Errorf("'%s' not found", name)
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}
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if p.VehicleType() == P.Compatible {
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return nil, fmt.Errorf("proxy group %s can't contains in `use`", name)
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}
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ps = append(ps, p)
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}
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return ps, nil
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}
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func addTestUrlToProviders(providers []P.ProxyProvider, url string, expectedStatus utils.IntRanges[uint16], filter string, interval uint) {
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if len(providers) == 0 || len(url) == 0 {
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return
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}
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for _, pd := range providers {
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pd.RegisterHealthCheckTask(url, expectedStatus, filter, interval)
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}
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}
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