func ReceiveMessage(pq *pqueue.PQueue, sqsQuery *urlutils.SQSQuery) sqs_response.SQSResponse {
pqCfg := pq.Config()
opts := &ReceiveMessageOptions{
WaitTimeSeconds: pqCfg.PopWaitTimeout,
VisibilityTimeout: pqCfg.PopLockTimeout,
MaxNumberOfMessages: 1,
Attributes: nil,
MessageAttributes: nil,
}
paramsLen := len(sqsQuery.ParamsList) - 1
for i := 0; i < paramsLen; i += 2 {
err := opts.Parse(sqsQuery.ParamsList[i], sqsQuery.ParamsList[i+1])
if err != nil {
return err
}
}
// All messages received from SQS must be locked.
res := pq.Pop(opts.VisibilityTimeout, opts.WaitTimeSeconds, opts.MaxNumberOfMessages, true)
if res.IsError() {
e, _ := res.(error)
return sqserr.InvalidParameterValueError(e.Error())
}
m, _ := res.(*resp.MessagesResponse)
items := m.GetItems()
output := &ReceiveMessageResponse{}
for _, item := range items {
if msgResp := MakeMessageResponse(item, opts, sqsQuery); msgResp != nil {
output.Message = append(output.Message, msgResp)
}
}
return output
}
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",
}
}
func GetQueueAttributes(pq *pqueue.PQueue, sqsQuery *urlutils.SQSQuery) sqs_response.SQSResponse {
paramsLen := len(sqsQuery.ParamsList) - 1
pqCfg := pq.Config()
pqDesc := pq.Description()
resp := &GetQueueAttributesResponse{
RequestId: "reqId",
}
for i := 0; i < paramsLen; i += 2 {
allAttr := false
if strings.HasPrefix(sqsQuery.ParamsList[i], "AttributeName") {
attrName := sqsQuery.ParamsList[i+1]
if attrName == AttrAll {
allAttr = true
resp.Attributes = make([]*QAttr, 0, 13) // 13 total attributes
}
if allAttr || attrName == AttrApproximateNumberOfMessages {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrApproximateNumberOfMessages,
Value: pq.AvailableMessages(),
})
}
if allAttr || attrName == AttrApproximateNumberOfMessagesNotVisible {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrApproximateNumberOfMessagesNotVisible,
Value: pq.LockedCount(),
})
}
if allAttr || attrName == AttrVisibilityTimeout {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrVisibilityTimeout,
Value: pqCfg.PopLockTimeout / 1000,
})
}
if allAttr || attrName == AttrCreatedTimestamp {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrCreatedTimestamp,
Value: pqDesc.CreateTs / 1000,
})
}
if allAttr || attrName == AttrLastModifiedTimestamp {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrLastModifiedTimestamp,
Value: pqCfg.LastUpdateTs / 1000,
})
}
if allAttr || attrName == AttrMaximumMessageSize {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrMaximumMessageSize,
Value: pqCfg.MaxMsgSize,
})
}
if allAttr || attrName == AttrMessageRetentionPeriod {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrMessageRetentionPeriod,
Value: pqCfg.MsgTtl / 1000,
})
}
if allAttr || attrName == AttrQueueArn {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrQueueArn,
Value: makeQueueArn(pqDesc.Name),
})
}
if allAttr || attrName == AttrApproximateNumberOfMessagesDelayed {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrApproximateNumberOfMessagesDelayed,
Value: pq.DelayedCount(),
})
}
if allAttr || attrName == AttrDelaySeconds {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrDelaySeconds,
Value: pqCfg.DeliveryDelay / 1000,
})
}
if allAttr || attrName == AttrReceiveMessageWaitTimeSeconds {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrReceiveMessageWaitTimeSeconds,
Value: pqCfg.PopWaitTimeout / 1000,
})
}
if allAttr || attrName == AttrRedrivePolicy {
if pqCfg.PopLimitQueueName != "" {
resp.Attributes = append(resp.Attributes, &QAttr{
Name: AttrRedrivePolicy,
Value: fmt.Sprintf(`{"deadLetterTargetArn":"%s","maxReceiveCount":%d}`,
makeQueueArn(pqCfg.PopLimitQueueName), pqCfg.PopCountLimit),
})
}
}
if allAttr {
break
}
}
}
return resp
}
