修复订阅无法正常获取的错误

.env.example

@@ -12,6 +12,5 @@ REDIS_DB=0
 JWT_SECRET=change_me_to_a_long_random_secret
 APP_PORT=8080
 APP_URL=http://127.0.0.1:8080
+LOG_LEVEL=info
 
-# Plugin source reference directory, only needed during development.
-PLUGIN_ROOT=reference/LDNET-GA-Theme/plugin

cmd/api/main_entry.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"io"
 	"log"
 	"os"
 	"path/filepath"
@@ -16,23 +17,42 @@ import (
 
 func main() {
 	config.LoadConfig()
+	configureRuntimeLogging()
 	database.InitDB()
 	database.InitCache()
 
 	router := gin.New()
-	router.Use(gin.Logger(), gin.Recovery())
+	if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "info") {
+		router.Use(gin.Logger())
+	}
+	router.Use(gin.Recovery())
 
 	api := router.Group("/api")
 	registerV1(api.Group("/v1"))
 	registerV2(api.Group("/v2"))
 	registerWebRoutes(router)
 
-	log.Printf("server starting on port %s", config.AppConfig.AppPort)
+	if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "info") {
+		log.Printf("server starting on port %s", config.AppConfig.AppPort)
+	}
 	if err := router.Run(":" + config.AppConfig.AppPort); err != nil {
 		log.Fatalf("failed to start server: %v", err)
 	}
 }
 
+func configureRuntimeLogging() {
+	if config.NormalizeLogLevel(config.AppConfig.LogLevel) == "debug" {
+		gin.SetMode(gin.DebugMode)
+	} else {
+		gin.SetMode(gin.ReleaseMode)
+	}
+
+	if config.NormalizeLogLevel(config.AppConfig.LogLevel) == "silent" {
+		gin.DefaultWriter = io.Discard
+		gin.DefaultErrorWriter = io.Discard
+	}
+}
+
 func registerV1(v1 *gin.RouterGroup) {
 	registerPassportRoutes(v1)
 	registerGuestRoutes(v1)
@@ -288,8 +308,10 @@ func registerWebRoutes(router *gin.Engine) {
 	}
 
 	securePath := "/" + service.GetAdminSecurePath()
+	subscribePath := "/" + service.GetSubscribePath()
 	router.GET("/", handler.UserThemePage)
 	router.GET("/dashboard", handler.UserThemePage)
+	router.GET(subscribePath+"/:token", handler.Subscribe)
 	router.GET(securePath, handler.AdminAppPage)
 	router.GET(securePath+"/", handler.AdminAppPage)
 	router.GET(securePath+"/plugin-panel/:kind", handler.AdminPluginPanelPage)

internal/config/config.go

@@ -4,24 +4,26 @@ import (
 	"log"
 	"os"
 	"strconv"
+	"strings"
 
 	"github.com/joho/godotenv"
 )
 
 type Config struct {
-	DBHost      string
-	DBPort      string
-	DBUser      string
-	DBPass      string
-	DBName      string
-	RedisHost   string
-	RedisPort   string
-	RedisPass   string
-	RedisDB     int
-	JWTSecret   string
-	AppPort     string
-	AppURL      string
-	PluginRoot  string
+	DBHost     string
+	DBPort     string
+	DBUser     string
+	DBPass     string
+	DBName     string
+	RedisHost  string
+	RedisPort  string
+	RedisPass  string
+	RedisDB    int
+	JWTSecret  string
+	AppPort    string
+	AppURL     string
+	LogLevel   string
+	PluginRoot string
 }
 
 var AppConfig *Config
@@ -45,10 +47,47 @@ func LoadConfig() {
 		JWTSecret:  getEnv("JWT_SECRET", "secret"),
 		AppPort:    getEnv("APP_PORT", "8080"),
 		AppURL:     getEnv("APP_URL", ""),
+		LogLevel:   NormalizeLogLevel(getEnv("LOG_LEVEL", "info")),
 		PluginRoot: getEnv("PLUGIN_ROOT", "reference\\LDNET-GA-Theme\\plugin"),
 	}
 }
 
+func NormalizeLogLevel(value string) string {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "debug":
+		return "debug"
+	case "warn", "warning":
+		return "warn"
+	case "error":
+		return "error"
+	case "silent":
+		return "silent"
+	default:
+		return "info"
+	}
+}
+
+func IsLogLevelEnabled(currentLevel, targetLevel string) bool {
+	logLevelOrder := map[string]int{
+		"debug":  0,
+		"info":   1,
+		"warn":   2,
+		"error":  3,
+		"silent": 4,
+	}
+
+	currentRank, ok := logLevelOrder[NormalizeLogLevel(currentLevel)]
+	if !ok {
+		currentRank = logLevelOrder["info"]
+	}
+	targetRank, ok := logLevelOrder[NormalizeLogLevel(targetLevel)]
+	if !ok {
+		targetRank = logLevelOrder["info"]
+	}
+
+	return currentRank <= targetRank
+}
+
 func getEnv(key, defaultValue string) string {
 	if value, exists := os.LookupEnv(key); exists {
 		return value

internal/database/cache.go

@@ -30,7 +30,9 @@ var fallbackCache = &memoryCache{
 
 func InitCache() {
 	if config.AppConfig.RedisHost == "" {
-		log.Printf("Redis host not configured, using in-memory cache")
+		if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "warn") {
+			log.Printf("Redis host not configured, using in-memory cache")
+		}
 		return
 	}
 
@@ -46,12 +48,16 @@ func InitCache() {
 	defer cancel()
 
 	if err := client.Ping(ctx).Err(); err != nil {
-		log.Printf("Redis unavailable at %s, falling back to in-memory: %v", addr, err)
+		if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "warn") {
+			log.Printf("Redis unavailable at %s, falling back to in-memory: %v", addr, err)
+		}
 		return
 	}
 
 	Redis = client
-	log.Printf("Redis connection established at %s", addr)
+	if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "info") {
+		log.Printf("Redis connection established at %s", addr)
+	}
 }
 
 func CacheSet(key string, value any, ttl time.Duration) error {

internal/database/db.go

@@ -24,7 +24,7 @@ func InitDB() {
 
 	var err error
 	DB, err = gorm.Open(mysql.Open(dsn), &gorm.Config{
-		Logger:                                 logger.Default.LogMode(logger.Info),
+		Logger:                                   logger.Default.LogMode(gormLogLevel(config.AppConfig.LogLevel)),
 		DisableForeignKeyConstraintWhenMigrating: true,
 	})
 
@@ -40,5 +40,22 @@ func InitDB() {
 		log.Fatalf("Failed to migrate database tables: %v", err)
 	}
 
-	log.Println("Database connection established")
+	if config.IsLogLevelEnabled(config.AppConfig.LogLevel, "info") {
+		log.Println("Database connection established")
+	}
+}
+
+func gormLogLevel(level string) logger.LogLevel {
+	switch config.NormalizeLogLevel(level) {
+	case "debug", "info":
+		return logger.Info
+	case "warn":
+		return logger.Warn
+	case "error":
+		return logger.Error
+	case "silent":
+		return logger.Silent
+	default:
+		return logger.Info
+	}
 }

internal/handler/admin_config_api.go

@@ -155,7 +155,7 @@ func getAllConfigMappings() gin.H {
 			"show_protocol_to_server_enable": service.MustGetBool("show_protocol_to_server_enable", false),
 			"default_remind_expire":          service.MustGetBool("default_remind_expire", true),
 			"default_remind_traffic":         service.MustGetBool("default_remind_traffic", true),
-			"subscribe_path":                 service.MustGetString("subscribe_path", "s"),
+			"subscribe_path":                 service.GetSubscribePath(),
 		},
 		"subscribe_template": service.GetAllSubscribeTemplates(),
 		"frontend": gin.H{

internal/handler/request_url.go

@@ -0,0 +1,147 @@
+package handler
+
+import (
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"xboard-go/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+func requestBaseURL(c *gin.Context) string {
+	if c != nil {
+		if origin := requestOrigin(c.Request); origin != "" {
+			return origin
+		}
+	}
+	if appURL := service.GetAppURL(); appURL != "" {
+		return strings.TrimRight(appURL, "/")
+	}
+	return ""
+}
+
+func requestOrigin(r *http.Request) string {
+	if r == nil {
+		return ""
+	}
+
+	scheme, host := forwardedOrigin(r)
+	if scheme != "" && host != "" {
+		return scheme + "://" + host
+	}
+
+	if host == "" {
+		host = firstHeaderValue(r.Header.Get("X-Forwarded-Host"))
+	}
+	if host == "" {
+		host = strings.TrimSpace(r.Host)
+	}
+	if host == "" {
+		host = originHostFallback(r)
+	}
+	if host == "" {
+		return ""
+	}
+
+	if scheme == "" {
+		scheme = firstHeaderValue(r.Header.Get("X-Forwarded-Proto"))
+	}
+	if scheme == "" {
+		scheme = firstHeaderValue(r.Header.Get("X-Forwarded-Scheme"))
+	}
+	if scheme == "" {
+		scheme = firstHeaderValue(r.Header.Get("X-Scheme"))
+	}
+	if scheme == "" && strings.EqualFold(strings.TrimSpace(r.Header.Get("Front-End-Https")), "on") {
+		scheme = "https"
+	}
+	if scheme == "" && strings.EqualFold(strings.TrimSpace(r.Header.Get("X-Forwarded-Ssl")), "on") {
+		scheme = "https"
+	}
+	if scheme == "" {
+		switch strings.TrimSpace(firstHeaderValue(r.Header.Get("X-Forwarded-Port"))) {
+		case "443":
+			scheme = "https"
+		case "80":
+			scheme = "http"
+		}
+	}
+	if scheme == "" {
+		scheme = originSchemeFallback(r)
+	}
+	if scheme == "" {
+		if r.TLS != nil {
+			scheme = "https"
+		} else {
+			scheme = "http"
+		}
+	}
+
+	if forwardedPort := strings.TrimSpace(firstHeaderValue(r.Header.Get("X-Forwarded-Port"))); forwardedPort != "" && !strings.Contains(host, ":") {
+		defaultPort := map[string]string{
+			"http":  "80",
+			"https": "443",
+		}[scheme]
+		if forwardedPort != defaultPort {
+			host = net.JoinHostPort(host, forwardedPort)
+		}
+	}
+
+	return scheme + "://" + host
+}
+
+func forwardedOrigin(r *http.Request) (scheme string, host string) {
+	forwarded := strings.TrimSpace(firstHeaderValue(r.Header.Get("Forwarded")))
+	if forwarded == "" {
+		return "", ""
+	}
+
+	for _, segment := range strings.Split(forwarded, ";") {
+		parts := strings.SplitN(strings.TrimSpace(segment), "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.ToLower(strings.TrimSpace(parts[0]))
+		value := strings.Trim(strings.TrimSpace(parts[1]), "\"")
+		switch key {
+		case "proto":
+			if value != "" {
+				scheme = value
+			}
+		case "host":
+			if value != "" {
+				host = value
+			}
+		}
+	}
+
+	return scheme, host
+}
+
+func firstHeaderValue(value string) string {
+	if value == "" {
+		return ""
+	}
+	parts := strings.Split(value, ",")
+	return strings.TrimSpace(parts[0])
+}
+
+func originHostFallback(r *http.Request) string {
+	for _, raw := range []string{r.Header.Get("Origin"), r.Header.Get("Referer")} {
+		if parsed, err := url.Parse(strings.TrimSpace(raw)); err == nil && parsed.Host != "" {
+			return parsed.Host
+		}
+	}
+	return ""
+}
+
+func originSchemeFallback(r *http.Request) string {
+	for _, raw := range []string{r.Header.Get("Origin"), r.Header.Get("Referer")} {
+		if parsed, err := url.Parse(strings.TrimSpace(raw)); err == nil && parsed.Scheme != "" {
+			return parsed.Scheme
+		}
+	}
+	return ""
+}

internal/handler/user_api.go

@@ -74,14 +74,8 @@ func UserGetSubscribe(c *gin.Context) {
 		}
 	}
 
-	baseURL := strings.TrimRight(service.GetAppURL(), "/")
-	if baseURL == "" {
-		scheme := "http"
-		if c.Request.TLS != nil {
-			scheme = "https"
-		}
-		baseURL = scheme + "://" + c.Request.Host
-	}
+	baseURL := requestBaseURL(c)
+	subscribePath := service.GetSubscribePath()
 
 	Success(c, gin.H{
 		"plan_id":         user.PlanID,
@@ -96,7 +90,7 @@ func UserGetSubscribe(c *gin.Context) {
 		"speed_limit":     user.SpeedLimit,
 		"next_reset_at":   user.NextResetAt,
 		"plan":            user.Plan,
-		"subscribe_url":   strings.TrimRight(baseURL, "/") + "/s/" + user.Token,
+		"subscribe_url":   strings.TrimRight(baseURL, "/") + "/" + subscribePath + "/" + user.Token,
 		"reset_day":       nil,
 	})
 }
@@ -129,15 +123,8 @@ func UserResetSecurity(c *gin.Context) {
 		return
 	}
 
-	baseURL := strings.TrimRight(service.GetAppURL(), "/")
-	if baseURL == "" {
-		scheme := "http"
-		if c.Request.TLS != nil {
-			scheme = "https"
-		}
-		baseURL = scheme + "://" + c.Request.Host
-	}
-	Success(c, strings.TrimRight(baseURL, "/")+"/s/"+newToken)
+	baseURL := requestBaseURL(c)
+	Success(c, strings.TrimRight(baseURL, "/")+"/"+service.GetSubscribePath()+"/"+newToken)
 }
 
 func UserUpdate(c *gin.Context) {

internal/handler/user_extra_api.go

@@ -206,10 +206,10 @@ func UserTrafficLog(c *gin.Context) {
 	items := make([]gin.H, 0, len(records))
 	for _, record := range records {
 		items = append(items, gin.H{
-			"user_id":    record.UserID,
-			"u":          record.U,
-			"d":          record.D,
-			"record_at":  record.RecordAt,
+			"user_id":     record.UserID,
+			"u":           record.U,
+			"d":           record.D,
+			"record_at":   record.RecordAt,
 			"server_rate": 1,
 		})
 	}
@@ -726,14 +726,10 @@ func quickLoginURL(c *gin.Context, userID int, redirectValues ...string) string
 }
 
 func baseURL(c *gin.Context) string {
-	if appURL := service.GetAppURL(); appURL != "" {
-		return strings.TrimRight(appURL, "/")
+	if baseURL := requestBaseURL(c); baseURL != "" {
+		return baseURL
 	}
-	scheme := "http"
-	if c.Request.TLS != nil {
-		scheme = "https"
-	}
-	return scheme + "://" + c.Request.Host
+	return ""
 }
 
 func generateTradeNo() string {

internal/handler/web_pages.go

@@ -4,11 +4,9 @@ import (
 	"bytes"
 	"encoding/json"
 	"html/template"
-	"net"
 	"net/http"
 	"path/filepath"
 	"strconv"
-	"strings"
 	"time"
 	"xboard-go/internal/service"
 
@@ -65,15 +63,10 @@ func UserThemePage(c *gin.Context) {
 
 func AdminAppPage(c *gin.Context) {
 	securePath := service.GetAdminSecurePath()
-	baseURL := service.GetAppURL()
-	if origin := requestOrigin(c.Request); origin != "" {
-		baseURL = origin
-	}
-
 	title := service.MustGetString("app_name", "XBoard") + " Admin"
 
 	settings := map[string]string{
-		"base_url":    baseURL,
+		"base_url":    requestBaseURL(c),
 		"title":       title,
 		"version":     service.MustGetString("app_version", "1.0.0"),
 		"logo":        service.MustGetString("logo", ""),
@@ -113,38 +106,3 @@ func mustJSON(value any) template.JS {
 	}
 	return template.JS(payload)
 }
-
-func requestOrigin(r *http.Request) string {
-	if r == nil {
-		return ""
-	}
-
-	scheme := r.Header.Get("X-Forwarded-Proto")
-	if scheme == "" {
-		if r.TLS != nil {
-			scheme = "https"
-		} else {
-			scheme = "http"
-		}
-	}
-
-	host := r.Header.Get("X-Forwarded-Host")
-	if host == "" {
-		host = r.Host
-	}
-	if host == "" {
-		return ""
-	}
-
-	if forwardedPort := r.Header.Get("X-Forwarded-Port"); forwardedPort != "" && !strings.Contains(host, ":") {
-		defaultPort := map[string]string{
-			"http":  "80",
-			"https": "443",
-		}[scheme]
-		if forwardedPort != "" && forwardedPort != defaultPort {
-			host = net.JoinHostPort(host, forwardedPort)
-		}
-	}
-
-	return scheme + "://" + host
-}

internal/service/settings.go

@@ -79,6 +79,13 @@ func GetAdminSecurePath() string {
 	return "admin"
 }
 
+func GetSubscribePath() string {
+	if subscribePath := strings.Trim(normalizeWrappedString(MustGetString("subscribe_path", "")), "/"); subscribePath != "" {
+		return subscribePath
+	}
+	return "s"
+}
+
 func GetAppURL() string {
 	if appURL := normalizeWrappedString(MustGetString("app_url", "")); appURL != "" {
 		return strings.TrimRight(appURL, "/")