80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package middleware
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import (
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"exam_registration/pkg/response"
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"github.com/gin-gonic/gin"
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"github.com/golang-jwt/jwt/v5"
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"github.com/spf13/viper"
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"net/http"
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"strings"
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)
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type Claims struct {
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UserID uint64 `json:"user_id"`
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Username string `json:"username"`
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Role string `json:"role"`
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jwt.RegisteredClaims
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}
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func JWT() 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.Error(c, response.UNAUTHORIZED, "未授权")
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c.Abort()
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return
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}
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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.Error(c, response.UNAUTHORIZED, "请求头中 auth 格式有误")
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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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token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(viper.GetString("jwt.secret")), nil
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})
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if err != nil || !token.Valid {
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response.Error(c, response.UNAUTHORIZED, "token 无效或已过期")
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c.Abort()
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return
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}
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claims, ok := token.Claims.(*Claims)
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if !ok {
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response.Error(c, response.UNAUTHORIZED, "无法获取用户信息")
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c.Abort()
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return
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}
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c.Set("claims", claims)
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c.Set("user_id", claims.UserID)
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c.Set("username", claims.Username)
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c.Next()
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}
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}
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// Cors 跨域中间件
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func Cors() gin.HandlerFunc {
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return func(c *gin.Context) {
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method := c.Request.Method
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origin := c.Request.Header.Get("Origin")
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c.Header("Access-Control-Allow-Origin", origin)
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c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, UPDATE")
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c.Header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization")
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c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Cache-Control, Content-Language, Content-Type")
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c.Header("Access-Control-Allow-Credentials", "true")
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if method == "OPTIONS" {
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c.AbortWithStatus(http.StatusNoContent)
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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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