opt: 增加中间件自动对HTTP请求的参数去掉首尾空格

api/core/app_server.go

@@ -1,6 +1,7 @@
 package core
 
 import (
+	"bytes"
 	"chatplus/core/types"
 	"chatplus/service/fun"
 	"chatplus/store/model"
@@ -58,6 +59,7 @@ func (s *AppServer) Init(debug bool, client *redis.Client) {
 	}
 	s.Engine.Use(corsMiddleware())
 	s.Engine.Use(authorizeMiddleware(s, client))
+	s.Engine.Use(parameterHandlerMiddleware())
 	s.Engine.Use(errorHandler)
 	// 添加静态资源访问
 	s.Engine.Static("/static", s.Config.StaticDir)
@@ -209,3 +211,65 @@ func authorizeMiddleware(s *AppServer, client *redis.Client) gin.HandlerFunc {
 		c.Set(types.LoginUserID, claims["user_id"])
 	}
 }
+
+// 统一参数处理
+func parameterHandlerMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		// GET 参数处理
+		params := c.Request.URL.Query()
+		for key, values := range params {
+			for i, value := range values {
+				params[key][i] = strings.TrimSpace(value)
+			}
+		}
+		// 更新参数
+		c.Request.URL.RawQuery = params.Encode()
+
+		// POST JSON 参数处理
+		bodyBytes, err := io.ReadAll(c.Request.Body)
+		if err != nil {
+			c.Next()
+			return
+		}
+
+		// 还原请求体
+		c.Request.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))
+		// 将请求体解析为 JSON
+		var jsonData map[string]interface{}
+		if err := c.ShouldBindJSON(&jsonData); err != nil {
+			c.Next()
+			return
+		}
+
+		// 对 JSON 数据中的字符串值去除两端空格
+		trimJSONStrings(jsonData)
+		// 更新请求体
+		c.Request.Body = io.NopCloser(bytes.NewBufferString(utils.JsonEncode(jsonData)))
+
+		c.Next()
+	}
+}
+
+// 递归对 JSON 数据中的字符串值去除两端空格
+func trimJSONStrings(data interface{}) {
+	switch v := data.(type) {
+	case map[string]interface{}:
+		for key, value := range v {
+			switch valueType := value.(type) {
+			case string:
+				v[key] = strings.TrimSpace(valueType)
+			case map[string]interface{}, []interface{}:
+				trimJSONStrings(value)
+			}
+		}
+	case []interface{}:
+		for i, value := range v {
+			switch valueType := value.(type) {
+			case string:
+				v[i] = strings.TrimSpace(valueType)
+			case map[string]interface{}, []interface{}:
+				trimJSONStrings(value)
+			}
+		}
+	}
+}