添加S3策略的支持 (#425)

* 添加亚马逊S3策略的支持

* 添加CDN支持，公有目录删除无用参数

* 增加Region

routers/controllers/callback.go

@@ -1,12 +1,13 @@
 package controllers
 
 import (
+	"net/url"
+	"strconv"
+
 	"github.com/HFO4/cloudreve/pkg/serializer"
 	"github.com/HFO4/cloudreve/pkg/util"
 	"github.com/HFO4/cloudreve/service/callback"
 	"github.com/gin-gonic/gin"
-	"net/url"
-	"strconv"
 )
 
 // RemoteCallback 远程上传回调
@@ -106,3 +107,14 @@ func COSCallback(c *gin.Context) {
 		c.JSON(200, ErrorResponse(err))
 	}
 }
+
+// S3Callback S3上传完成客户端回调
+func S3Callback(c *gin.Context) {
+	var callbackBody callback.S3Callback
+	if err := c.ShouldBindQuery(&callbackBody); err == nil {
+		res := callbackBody.PreProcess(c)
+		c.JSON(200, res)
+	} else {
+		c.JSON(200, ErrorResponse(err))
+	}
+}