Method GetAttachment

api/pkg/handlers/attachment_handler.go:52–85

GetAttachment Downloads an attachment @Summary Download a message attachment @Description Download an MMS attachment by its path components @Tags Attachments @Produce application/octet-stream @Param userID path string true "User ID" @Param messageID

(c fiber.Ctx)

// @Failure      500  {object}  responses.InternalServerError
// @Router       /v1/attachments/{userID}/{messageID}/{attachmentIndex}/{filename} [get]
func (h *AttachmentHandler) GetAttachment(c fiber.Ctx) error {
	ctx, span := h.tracer.StartFromFiberCtx(c)
	defer span.End()

	ctxLogger := h.tracer.CtxLogger(h.logger, span)

	userID := c.Params("userID")
	messageID := c.Params("messageID")
	attachmentIndex := c.Params("attachmentIndex")
	filename := c.Params("filename")

	path := fmt.Sprintf("attachments/%s/%s/%s/%s", userID, messageID, attachmentIndex, filename)

	ctxLogger.Info(fmt.Sprintf("downloading attachment from path [%s]", path))

	data, err := h.storage.Download(ctx, path)
	if err != nil {
		msg := fmt.Sprintf("cannot download attachment from path [%s]", path)
		ctxLogger.Warn(stacktrace.Propagate(err, msg))
		if stacktrace.GetCode(err) == repositories.ErrCodeNotFound {
			return h.responseNotFound(c, "attachment not found")
		}
		return h.responseInternalServerError(c)
	}

	ext := filepath.Ext(filename)
	contentType := repositories.ContentTypeFromExtension(ext)

	c.Set("Content-Type", contentType)
	c.Set("Content-Disposition", "attachment")
	c.Set("X-Content-Type-Options", "nosniff")

	return c.Send(data)
}