采用中间件授权的方式

api/core/middleware/parameter.go

@@ -0,0 +1,80 @@
+package middleware
+
+import (
+	"bytes"
+	"geekai/utils"
+	"io"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+// 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)
+			}
+		}
+		// update get parameters
+		c.Request.URL.RawQuery = params.Encode()
+		// skip file upload requests
+		contentType := c.Request.Header.Get("Content-Type")
+		if strings.Contains(contentType, "multipart/form-data") {
+			c.Next()
+			return
+		}
+
+		if strings.Contains(contentType, "application/json") {
+			// process POST JSON request body
+			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]any
+			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 any) {
+	switch v := data.(type) {
+	case map[string]any:
+		for key, value := range v {
+			switch valueType := value.(type) {
+			case string:
+				v[key] = strings.TrimSpace(valueType)
+			case map[string]any, []any:
+				trimJSONStrings(value)
+			}
+		}
+	case []any:
+		for i, value := range v {
+			switch valueType := value.(type) {
+			case string:
+				v[i] = strings.TrimSpace(valueType)
+			case map[string]any, []any:
+				trimJSONStrings(value)
+			}
+		}
+	}
+}