Exemple #1
0
func PushAMessage(pq *pqueue.PQueue, senderId string, paramList []string) sqs_response.SQSResponse {
	out := &MessageParams{
		DelaySeconds: -1,
		MessageBody:  "",
	}
	attrs, err := urlutils.ParseNNotationAttr("MessageAttribute.", paramList, out.Parse, NewReqQueueAttr)
	if err != nil {
		return err
	}
	attrsLen := len(attrs)
	outAttrs := make(map[string]*sqsmsg.UserAttribute)

	for i := 1; i <= attrsLen; i++ {
		a, ok := attrs[i]
		if !ok {
			return sqserr.InvalidParameterValueError("The request must contain non-empty message attribute name.")
		}
		reqMsgAttr, _ := a.(*ReqMsgAttr)

		sqs_err := validation.ValidateMessageAttrName(reqMsgAttr.Name)
		if sqs_err != nil {
			return sqs_err
		}

		sqs_err = validation.ValidateMessageAttrName(reqMsgAttr.DataType)
		if sqs_err != nil {
			return sqs_err
		}

		if reqMsgAttr.BinaryValue != "" && reqMsgAttr.StringValue != "" {
			return sqserr.InvalidParameterValueError(
				"Message attribute name '%s' has multiple values.", reqMsgAttr.Name)
		}

		if _, ok := outAttrs[reqMsgAttr.Name]; ok {
			return sqserr.InvalidParameterValueError(
				"Message attribute name '%s' already exists.", reqMsgAttr.Name)
		}

		if strings.HasPrefix(reqMsgAttr.DataType, "Number") {
			if _, err := strconv.Atoi(reqMsgAttr.StringValue); err != nil {
				return sqserr.InvalidParameterValueError(
					"Could not cast message attribute '%s' value to number.", reqMsgAttr.Name)
			}
		}

		if reqMsgAttr.BinaryValue != "" {
			if reqMsgAttr.DataType != "Binary" {
				return sqserr.InvalidParameterValueError(
					"The message attribute '%s' with type 'Binary' must use field 'Binary'", reqMsgAttr.Name)
			}
			outAttrs[reqMsgAttr.Name] = &sqsmsg.UserAttribute{
				Type:  reqMsgAttr.DataType,
				Value: reqMsgAttr.BinaryValue,
			}
			continue
		}

		if reqMsgAttr.StringValue != "" {
			if reqMsgAttr.DataType != "String" && reqMsgAttr.DataType != "Number" {
				return sqserr.InvalidParameterValueError(
					"The message attribute '%s' with type 'String' must use field 'String'", reqMsgAttr.Name)
			}
			outAttrs[reqMsgAttr.Name] = &sqsmsg.UserAttribute{
				Type:  reqMsgAttr.DataType,
				Value: reqMsgAttr.StringValue,
			}
		}
	}

	msgId := IdGen.RandId()
	if out.DelaySeconds < 0 {
		out.DelaySeconds = pq.Config().DeliveryDelay
	} else if out.DelaySeconds > conf.CFG_PQ.MaxDeliveryDelay {
		return sqserr.InvalidParameterValueError(
			"Delay secods must be between 0 and %d", conf.CFG_PQ.MaxDeliveryDelay/1000)
	}
	bodyMd5str := fmt.Sprintf("%x", md5.Sum(enc.UnsafeStringToBytes(out.MessageBody)))
	attrMd5 := CalcAttrMd5(outAttrs)

	msgPayload := sqsmsg.SQSMessagePayload{
		UserAttributes:         outAttrs,
		MD5OfMessageBody:       bodyMd5str,
		MD5OfMessageAttributes: attrMd5,
		SenderId:               senderId,
		SentTimestamp:          strconv.FormatInt(utils.Uts(), 10),
		Payload:                out.MessageBody,
	}

	d, marshalErr := msgPayload.Marshal()
	if marshalErr != nil {
		log.Error("Failed to serialize message payload: %v", err)
	}
	payload := enc.UnsafeBytesToString(d)

	resp := pq.Push(msgId, payload, pq.Config().MsgTtl, out.DelaySeconds, 1)
	if resp.IsError() {
		e, _ := resp.(error)
		return sqserr.InvalidParameterValueError(e.Error())
	}

	return &SendMessageResponse{
		MessageId:              msgId,
		MD5OfMessageBody:       bodyMd5str,
		MD5OfMessageAttributes: attrMd5,
		RequestId:              "req",
	}
}