96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
package middleware
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import (
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"cargo-erp-backend/pkg/helpers"
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"cargo-erp-backend/pkg/response"
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"context"
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"fmt"
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"net/http"
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"strings"
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"github.com/gin-gonic/gin"
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"github.com/redis/go-redis/v9"
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)
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type AuthMiddlewareInterface interface {
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Check() gin.HandlerFunc
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}
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type AuthMiddleware struct {
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Helper helpers.HelperInterface
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}
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func NewAuthMiddleware(helper helpers.HelperInterface) AuthMiddlewareInterface {
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return &AuthMiddleware{
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Helper: helper,
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}
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}
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func (m *AuthMiddleware) Check() gin.HandlerFunc {
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return func(c *gin.Context) {
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// rechecking auth header
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authHeader := c.GetHeader("Authorization")
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authData := ""
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authKey := ""
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err_auth_header := false
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if authHeader == "" {
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err_auth_header = true
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}
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parts := strings.Fields(authHeader)
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token_string := ""
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if len(parts) != 2 || !strings.EqualFold(parts[0], "Bearer") {
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err_auth_header = true
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} else {
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token_string = parts[1]
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}
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if err_auth_header {
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cookieName := fmt.Sprintf("%v", m.Helper.Config().Get("cookie.name"))
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value, err := c.Cookie(cookieName)
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if err != nil {
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response.Error(c, http.StatusUnauthorized, "Unauthorized")
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c.Abort()
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return
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}
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if len(authHeader) > 0 && len(value) > 0 && parts[1] != value {
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response.Error(c, http.StatusUnauthorized, "Unauthorized")
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c.Abort()
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return
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}
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token_string = value
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}
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ctx := context.Background()
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redis_exist := make(map[string]string)
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m.Helper.Log().Info("session_login : " + token_string)
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iter := m.Helper.GetRedis("slave").Scan(ctx, 0, "session_login:*:"+token_string, 1000).Iterator()
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for iter.Next(ctx) {
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keys := iter.Val()
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value, err := m.Helper.GetRedis("slave").Get(ctx, keys).Result()
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if err != nil {
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if err == redis.Nil {
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continue
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}
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}
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redis_exist[keys] = value
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}
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if err := iter.Err(); err != nil {
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response.Error(c, http.StatusUnauthorized, "Unauthorized")
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c.Abort()
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return
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}
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if len(redis_exist) != 1 {
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response.Error(c, http.StatusUnauthorized, "Unauthorized")
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c.Abort()
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return
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}
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for k, v := range redis_exist {
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authData = v
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authKey = k
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}
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m.Helper.Log().Info("Set Auth : " + authData)
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c.Set("auth", authData)
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c.Set("auth_key", authKey)
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c.Next()
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}
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}
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