feat(sub): integrate Clash YAML endpoint into subscription system

- Add Clash route handler in SUBController
- Update BuildURLs to include Clash URL
- Pass Clash settings through subscription pipeline

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

sub/sub.go

@@ -91,12 +91,21 @@ func (s *Server) initRouter() (*gin.Engine, error) {
 		return nil, err
 	}
 
-	// Determine if JSON subscription endpoint is enabled
+	ClashPath, err := s.settingService.GetSubClashPath()
+	if err != nil {
+		return nil, err
+	}
+
 	subJsonEnable, err := s.settingService.GetSubJsonEnable()
 	if err != nil {
 		return nil, err
 	}
 
+	subClashEnable, err := s.settingService.GetSubClashEnable()
+	if err != nil {
+		return nil, err
+	}
+
 	// Set base_path based on LinksPath for template rendering
 	// Ensure LinksPath ends with "/" for proper asset URL generation
 	basePath := LinksPath
@@ -255,7 +264,7 @@ func (s *Server) initRouter() (*gin.Engine, error) {
 	g := engine.Group("/")
 
 	s.sub = NewSUBController(
-		g, LinksPath, JsonPath, subJsonEnable, Encrypt, ShowInfo, RemarkModel, SubUpdates,
+		g, LinksPath, JsonPath, ClashPath, subJsonEnable, subClashEnable, Encrypt, ShowInfo, RemarkModel, SubUpdates,
 		SubJsonFragment, SubJsonNoises, SubJsonMux, SubJsonRules, SubTitle, SubSupportUrl,
 		SubProfileUrl, SubAnnounce, SubEnableRouting, SubRoutingRules)
 

sub/subController.go

@@ -21,12 +21,15 @@ type SUBController struct {
 	subRoutingRules  string
 	subPath          string
 	subJsonPath      string
+	subClashPath     string
 	jsonEnabled      bool
+	clashEnabled     bool
 	subEncrypt       bool
 	updateInterval   string
 
-	subService     *SubService
-	subJsonService *SubJsonService
+	subService      *SubService
+	subJsonService  *SubJsonService
+	subClashService *SubClashService
 }
 
 // NewSUBController creates a new subscription controller with the given configuration.
@@ -34,7 +37,9 @@ func NewSUBController(
 	g *gin.RouterGroup,
 	subPath string,
 	jsonPath string,
+	clashPath string,
 	jsonEnabled bool,
+	clashEnabled bool,
 	encrypt bool,
 	showInfo bool,
 	rModel string,
@@ -60,12 +65,15 @@ func NewSUBController(
 		subRoutingRules:  subRoutingRules,
 		subPath:          subPath,
 		subJsonPath:      jsonPath,
+		subClashPath:     clashPath,
 		jsonEnabled:      jsonEnabled,
+		clashEnabled:     clashEnabled,
 		subEncrypt:       encrypt,
 		updateInterval:   update,
 
-		subService:     sub,
-		subJsonService: NewSubJsonService(jsonFragment, jsonNoise, jsonMux, jsonRules, sub),
+		subService:      sub,
+		subJsonService:  NewSubJsonService(jsonFragment, jsonNoise, jsonMux, jsonRules, sub),
+		subClashService: NewSubClashService(sub),
 	}
 	a.initRouter(g)
 	return a
@@ -80,6 +88,10 @@ func (a *SUBController) initRouter(g *gin.RouterGroup) {
 		gJson := g.Group(a.subJsonPath)
 		gJson.GET(":subid", a.subJsons)
 	}
+	if a.clashEnabled {
+		gClash := g.Group(a.subClashPath)
+		gClash.GET(":subid", a.subClashs)
+	}
 }
 
 // subs handles HTTP requests for subscription links, returning either HTML page or base64-encoded subscription data.
@@ -99,10 +111,13 @@ func (a *SUBController) subs(c *gin.Context) {
 		accept := c.GetHeader("Accept")
 		if strings.Contains(strings.ToLower(accept), "text/html") || c.Query("html") == "1" || strings.EqualFold(c.Query("view"), "html") {
 			// Build page data in service
-			subURL, subJsonURL := a.subService.BuildURLs(scheme, hostWithPort, a.subPath, a.subJsonPath, subId)
+			subURL, subJsonURL, subClashURL := a.subService.BuildURLs(scheme, hostWithPort, a.subPath, a.subJsonPath, a.subClashPath, subId)
 			if !a.jsonEnabled {
 				subJsonURL = ""
 			}
+			if !a.clashEnabled {
+				subClashURL = ""
+			}
 			// Get base_path from context (set by middleware)
 			basePath, exists := c.Get("base_path")
 			if !exists {
@@ -116,7 +131,7 @@ func (a *SUBController) subs(c *gin.Context) {
 				// Remove trailing slash if exists, add subId, then add trailing slash
 				basePathStr = strings.TrimRight(basePathStr, "/") + "/" + subId + "/"
 			}
-			page := a.subService.BuildPageData(subId, hostHeader, traffic, lastOnline, subs, subURL, subJsonURL, basePathStr)
+			page := a.subService.BuildPageData(subId, hostHeader, traffic, lastOnline, subs, subURL, subJsonURL, subClashURL, basePathStr)
 			c.HTML(200, "subpage.html", gin.H{
 				"title":        "subscription.title",
 				"cur_ver":      config.GetVersion(),
@@ -136,6 +151,7 @@ func (a *SUBController) subs(c *gin.Context) {
 				"totalByte":    page.TotalByte,
 				"subUrl":       page.SubUrl,
 				"subJsonUrl":   page.SubJsonUrl,
+				"subClashUrl":  page.SubClashUrl,
 				"result":       page.Result,
 			})
 			return
@@ -165,7 +181,6 @@ func (a *SUBController) subJsons(c *gin.Context) {
 	if err != nil || len(jsonSub) == 0 {
 		c.String(400, "Error!")
 	} else {
-		// Add headers
 		profileUrl := a.subProfileUrl
 		if profileUrl == "" {
 			profileUrl = fmt.Sprintf("%s://%s%s", scheme, hostWithPort, c.Request.RequestURI)
@@ -176,6 +191,22 @@ func (a *SUBController) subJsons(c *gin.Context) {
 	}
 }
 
+func (a *SUBController) subClashs(c *gin.Context) {
+	subId := c.Param("subid")
+	scheme, host, hostWithPort, _ := a.subService.ResolveRequest(c)
+	clashSub, header, err := a.subClashService.GetClash(subId, host)
+	if err != nil || len(clashSub) == 0 {
+		c.String(400, "Error!")
+	} else {
+		profileUrl := a.subProfileUrl
+		if profileUrl == "" {
+			profileUrl = fmt.Sprintf("%s://%s%s", scheme, hostWithPort, c.Request.RequestURI)
+		}
+		a.ApplyCommonHeaders(c, header, a.updateInterval, a.subTitle, a.subSupportUrl, profileUrl, a.subAnnounce, a.subEnableRouting, a.subRoutingRules)
+		c.Data(200, "application/yaml; charset=utf-8", []byte(clashSub))
+	}
+}
+
 // ApplyCommonHeaders sets common HTTP headers for subscription responses including user info, update interval, and profile title.
 func (a *SUBController) ApplyCommonHeaders(
 	c *gin.Context,

sub/subService.go

@@ -1031,6 +1031,7 @@ type PageData struct {
 	TotalByte    int64
 	SubUrl       string
 	SubJsonUrl   string
+	SubClashUrl  string
 	Result       []string
 }
 
@@ -1080,29 +1081,25 @@ func (s *SubService) ResolveRequest(c *gin.Context) (scheme string, host string,
 
 // BuildURLs constructs absolute subscription and JSON subscription URLs for a given subscription ID.
 // It prioritizes configured URIs, then individual settings, and finally falls back to request-derived components.
-func (s *SubService) BuildURLs(scheme, hostWithPort, subPath, subJsonPath, subId string) (subURL, subJsonURL string) {
-	// Input validation
+func (s *SubService) BuildURLs(scheme, hostWithPort, subPath, subJsonPath, subClashPath, subId string) (subURL, subJsonURL, subClashURL string) {
 	if subId == "" {
-		return "", ""
+		return "", "", ""
 	}
 
-	// Get configured URIs first (highest priority)
 	configuredSubURI, _ := s.settingService.GetSubURI()
 	configuredSubJsonURI, _ := s.settingService.GetSubJsonURI()
+	configuredSubClashURI, _ := s.settingService.GetSubClashURI()
 
-	// Determine base scheme and host (cached to avoid duplicate calls)
 	var baseScheme, baseHostWithPort string
-	if configuredSubURI == "" || configuredSubJsonURI == "" {
+	if configuredSubURI == "" || configuredSubJsonURI == "" || configuredSubClashURI == "" {
 		baseScheme, baseHostWithPort = s.getBaseSchemeAndHost(scheme, hostWithPort)
 	}
 
-	// Build subscription URL
 	subURL = s.buildSingleURL(configuredSubURI, baseScheme, baseHostWithPort, subPath, subId)
-
-	// Build JSON subscription URL
 	subJsonURL = s.buildSingleURL(configuredSubJsonURI, baseScheme, baseHostWithPort, subJsonPath, subId)
+	subClashURL = s.buildSingleURL(configuredSubClashURI, baseScheme, baseHostWithPort, subClashPath, subId)
 
-	return subURL, subJsonURL
+	return subURL, subJsonURL, subClashURL
 }
 
 // getBaseSchemeAndHost determines the base scheme and host from settings or falls back to request values
@@ -1149,7 +1146,7 @@ func (s *SubService) joinPathWithID(basePath, subId string) string {
 
 // BuildPageData parses header and prepares the template view model.
 // BuildPageData constructs page data for rendering the subscription information page.
-func (s *SubService) BuildPageData(subId string, hostHeader string, traffic xray.ClientTraffic, lastOnline int64, subs []string, subURL, subJsonURL string, basePath string) PageData {
+func (s *SubService) BuildPageData(subId string, hostHeader string, traffic xray.ClientTraffic, lastOnline int64, subs []string, subURL, subJsonURL, subClashURL string, basePath string) PageData {
 	download := common.FormatTraffic(traffic.Down)
 	upload := common.FormatTraffic(traffic.Up)
 	total := "∞"
@@ -1183,6 +1180,7 @@ func (s *SubService) BuildPageData(subId string, hostHeader string, traffic xray
 		TotalByte:    traffic.Total,
 		SubUrl:       subURL,
 		SubJsonUrl:   subJsonURL,
+		SubClashUrl:  subClashURL,
 		Result:       subs,
 	}
 }