s3 minio, cos, oss support

pkg/common/db/s3/cont/structs.go

@@ -0,0 +1,15 @@
+package cont
+
+import "github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/s3"
+
+type InitiateUploadResult struct {
+	UploadID string             `json:"uploadID"` // 上传ID
+	PartSize int64              `json:"partSize"` // 分片大小
+	Sign     *s3.AuthSignResult `json:"sign"`     // 分片信息
+}
+
+type UploadResult struct {
+	Hash string `json:"hash"`
+	Size int64  `json:"size"`
+	Key  string `json:"key"`
+}