feat: add origin kling api

middleware/kling_adapter.go

@@ -0,0 +1,45 @@
+package middleware
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/gin-gonic/gin"
+	"io"
+	"one-api/common"
+)
+
+func KlingRequestConvert() func(c *gin.Context) {
+	return func(c *gin.Context) {
+		var originalReq map[string]interface{}
+		if err := common.UnmarshalBodyReusable(c, &originalReq); err != nil {
+			c.Next()
+			return
+		}
+
+		model, _ := originalReq["model"].(string)
+		prompt, _ := originalReq["prompt"].(string)
+
+		unifiedReq := map[string]interface{}{
+			"model":    model,
+			"prompt":   prompt,
+			"metadata": originalReq,
+		}
+
+		jsonData, err := json.Marshal(unifiedReq)
+		if err != nil {
+			c.Next()
+			return
+		}
+
+		// Rewrite request body and path
+		c.Request.Body = io.NopCloser(bytes.NewBuffer(jsonData))
+		c.Request.URL.Path = "/v1/video/generations"
+		if image := originalReq["image"]; image == "" {
+			c.Set("action", "textGenerate")
+		}
+
+		// We have to reset the request body for the next handlers
+		c.Set(common.KeyRequestBody, jsonData)
+		c.Next()
+	}
+}