119 lines
3.8 KiB
Go
119 lines
3.8 KiB
Go
// Изменено: 2026-04-11 — добавлена Redis persistence
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// ChangeMessageVisibilityV1 — меняет visibility timeout сообщения в очереди тенанта.
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package gosqs
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import (
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"net/http"
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"strings"
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"time"
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"shared-sqs/app/interfaces"
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"shared-sqs/app/models"
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"shared-sqs/app/persistence"
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"shared-sqs/app/utils"
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"github.com/gorilla/mux"
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log "github.com/sirupsen/logrus"
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)
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func ChangeMessageVisibilityV1(req *http.Request) (int, interfaces.AbstractResponseBody) {
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requestBody := models.NewChangeMessageVisibilityRequest()
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ok := utils.REQUEST_TRANSFORMER(requestBody, req, false)
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if !ok {
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log.Error("Invalid Request - ChangeMessageVisibilityV1")
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return utils.CreateErrorResponseV1("InvalidParameterValue", true)
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}
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t := getTenantFromContext(req)
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if t == nil {
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return utils.CreateErrorResponseV1("InvalidClientTokenId", true)
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}
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vars := mux.Vars(req)
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queueUrl := requestBody.QueueUrl
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queueName := ""
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if queueUrl == "" {
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queueName = vars["queueName"]
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} else {
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uriSegments := strings.Split(queueUrl, "/")
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queueName = uriSegments[len(uriSegments)-1]
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}
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key := tenantQueueKey(t.AccessKey, queueName)
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receiptHandle := requestBody.ReceiptHandle
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visibilityTimeout := requestBody.VisibilityTimeout
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if visibilityTimeout < 0 || visibilityTimeout > 43200 {
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return utils.CreateErrorResponseV1("InvalidParameterValue", true)
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}
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// ВСЯ работа с очередью — под одним Lock.
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// Раньше проверка существования шла БЕЗ блокировки (чтение map) —
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// concurrent map read and map write при параллельном DeleteQueue
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// (fatal error, под падал под нагрузкой).
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// defer Unlock: при любой панике в секции мьютекс не останется захваченным.
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models.SyncQueues.Lock()
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defer models.SyncQueues.Unlock()
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queue, exists := models.SyncQueues.Queues[key]
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if !exists {
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return utils.CreateErrorResponseV1("QueueNotFound", true)
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}
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messageFound := false
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var changedMsgUuid string
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var msgRemoved bool
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for i := 0; i < len(queue.Messages); i++ {
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msgs := queue.Messages
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if msgs[i].ReceiptHandle == receiptHandle {
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timeout := queue.VisibilityTimeout
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if visibilityTimeout == 0 {
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msgs[i].ReceiptTime = time.Now().UTC()
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msgs[i].ReceiptHandle = ""
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msgs[i].VisibilityTimeout = time.Now().Add(time.Duration(timeout) * time.Second)
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msgs[i].Retry++
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if queue.MaxReceiveCount > 0 &&
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queue.DeadLetterQueue != nil &&
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msgs[i].Retry >= queue.MaxReceiveCount {
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changedMsgUuid = msgs[i].Uuid
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queue.DeadLetterQueue.Messages = append(queue.DeadLetterQueue.Messages, msgs[i])
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queue.Messages = append(queue.Messages[:i], queue.Messages[i+1:]...)
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msgRemoved = true
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} else {
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changedMsgUuid = msgs[i].Uuid
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}
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} else {
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msgs[i].VisibilityTimeout = time.Now().Add(time.Duration(visibilityTimeout) * time.Second)
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changedMsgUuid = msgs[i].Uuid
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}
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messageFound = true
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break
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}
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}
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// Персистим изменения в Redis под Lock (сетевые записи асинхронны).
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if messageFound {
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if msgRemoved {
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// Сообщение удалено (перемещено в DLQ) — удаляем из Redis
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persistence.DeleteMessagePersist(key, changedMsgUuid)
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} else {
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// Сообщение обновлено — перезаписываем в Redis
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for i := range queue.Messages {
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if queue.Messages[i].Uuid == changedMsgUuid {
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persistence.SaveMessage(key, &queue.Messages[i])
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break
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}
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}
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}
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persistence.SaveQueue(key, queue)
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}
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if !messageFound {
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return utils.CreateErrorResponseV1("MessageNotInFlight", true)
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}
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respStruct := models.ChangeMessageVisibilityResult{
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Xmlns: models.BaseXmlns,
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Metadata: models.BaseResponseMetadata,
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}
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return http.StatusOK, &respStruct
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}
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