Feat: disable overwrite for non-updating put request, only works under local,slave,OneDrive,OSS policy. (#764)

pkg/filesystem/driver/oss/handler.go

@@ -235,8 +235,15 @@ func (handler Driver) Put(ctx context.Context, file io.ReadCloser, dst string, s
 	// 凭证有效期
 	credentialTTL := model.GetIntSetting("upload_credential_timeout", 3600)
 
+	// 是否允许覆盖
+	overwrite := true
+	if ctx.Value(fsctx.DisableOverwrite) != nil {
+		overwrite = false
+	}
+
 	options := []oss.Option{
 		oss.Expires(time.Now().Add(time.Duration(credentialTTL) * time.Second)),
+		oss.ForbidOverWrite(!overwrite),
 	}
 
 	// 上传文件

pkg/filesystem/driver/oss/handler_test.go

@@ -265,10 +265,11 @@ func TestDriver_Put(t *testing.T) {
 		},
 	}
 	cache.Set("setting_upload_credential_timeout", "3600", 0)
+	ctx := context.WithValue(context.Background(), fsctx.DisableOverwrite, true)
 
 	// 失败
 	{
-		err := handler.Put(context.Background(), ioutil.NopCloser(strings.NewReader("123")), "/123.txt", 3)
+		err := handler.Put(ctx, ioutil.NopCloser(strings.NewReader("123")), "/123.txt", 3)
 		asserts.Error(err)
 	}
 }