105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
package auth
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import (
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"nebula/internal/api/response"
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"strings"
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"github.com/gin-gonic/gin"
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)
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// JWTMiddleware JWT 认证中间件
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func JWTMiddleware(jwtService *JWTService) gin.HandlerFunc {
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return func(c *gin.Context) {
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authHeader := c.GetHeader("Authorization")
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if authHeader == "" {
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response.Fail(c, 401, "missing authorization header")
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c.Abort()
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return
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}
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// 解析 Bearer token
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parts := strings.SplitN(authHeader, " ", 2)
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if len(parts) != 2 || parts[0] != "Bearer" {
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response.Fail(c, 401, "invalid authorization header format")
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c.Abort()
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return
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}
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tokenString := parts[1]
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// 验证 token
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claims, err := jwtService.ValidateToken(tokenString)
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if err != nil {
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response.Fail(c, 401, "invalid or expired token")
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c.Abort()
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return
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}
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// 将用户信息保存到上下文
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c.Set("user_id", claims.UserID)
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c.Set("username", claims.Username)
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c.Set("role", claims.Role)
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c.Next()
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}
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}
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// OptionalJWTMiddleware 可选的 JWT 中间件（token 无效不报错）
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func OptionalJWTMiddleware(jwtService *JWTService) gin.HandlerFunc {
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return func(c *gin.Context) {
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authHeader := c.GetHeader("Authorization")
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if authHeader != "" {
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parts := strings.SplitN(authHeader, " ", 2)
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if len(parts) == 2 && parts[0] == "Bearer" {
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tokenString := parts[1]
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if claims, err := jwtService.ValidateToken(tokenString); err == nil {
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c.Set("user_id", claims.UserID)
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c.Set("username", claims.Username)
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c.Set("role", claims.Role)
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}
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}
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}
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c.Next()
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}
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}
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// AdminMiddleware 管理员权限中间件（需要先使用 JWTMiddleware）
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func AdminMiddleware() gin.HandlerFunc {
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return func(c *gin.Context) {
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role, exists := c.Get("role")
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if !exists || role != "admin" {
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response.Fail(c, 403, "admin access required")
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c.Abort()
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return
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}
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c.Next()
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}
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}
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// GetCurrentUserID 从上下文获取当前用户 ID
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func GetCurrentUserID(c *gin.Context) (string, bool) {
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userID, exists := c.Get("user_id")
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if !exists {
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return "", false
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}
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return userID.(string), true
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}
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// GetCurrentUsername 从上下文获取当前用户名
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func GetCurrentUsername(c *gin.Context) (string, bool) {
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username, exists := c.Get("username")
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if !exists {
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return "", false
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}
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return username.(string), true
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}
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// GetCurrentUserRole 从上下文获取当前用户角色
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func GetCurrentUserRole(c *gin.Context) (string, bool) {
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role, exists := c.Get("role")
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if !exists {
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return "", false
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}
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return role.(string), true
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}
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