/
sqs.go
147 lines (131 loc) · 3.15 KB
/
sqs.go
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package endpoint
import (
"fmt"
"strings"
"sync"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/tidwall/tile38/internal/log"
)
const sqsExpiresAfter = time.Second * 30
// SQSConn is an endpoint connection
type SQSConn struct {
mu sync.Mutex
ep Endpoint
session *session.Session
svc *sqs.SQS
ex bool
t time.Time
}
func (conn *SQSConn) generateSQSURL() string {
if conn.ep.SQS.PlainURL != "" {
return conn.ep.SQS.PlainURL
}
return "https://sqs." + conn.ep.SQS.Region + ".amazonaws.com/" +
conn.ep.SQS.QueueID + "/" + conn.ep.SQS.QueueName
}
// Expired returns true if the connection has expired
func (conn *SQSConn) Expired() bool {
conn.mu.Lock()
defer conn.mu.Unlock()
if !conn.ex {
if time.Since(conn.t) > sqsExpiresAfter {
conn.close()
conn.ex = true
}
}
return conn.ex
}
// ExpireNow forces the connection to expire
func (conn *SQSConn) ExpireNow() {
conn.mu.Lock()
defer conn.mu.Unlock()
conn.close()
conn.ex = true
}
func (conn *SQSConn) close() {
if conn.svc != nil {
conn.svc = nil
conn.session = nil
}
}
// Send sends a message
func (conn *SQSConn) Send(msg string) error {
conn.mu.Lock()
defer conn.mu.Unlock()
if conn.ex {
return errExpired
}
conn.t = time.Now()
if conn.svc == nil && conn.session == nil {
var creds *credentials.Credentials
credPath := conn.ep.SQS.CredPath
if credPath != "" {
credProfile := conn.ep.SQS.CredProfile
if credProfile == "" {
credProfile = "default"
}
creds = credentials.NewSharedCredentials(credPath, credProfile)
}
var region string
if conn.ep.SQS.Region != "" {
region = conn.ep.SQS.Region
} else {
region = sqsRegionFromPlainURL(conn.ep.SQS.PlainURL)
}
sess := session.Must(session.NewSession(&aws.Config{
Region: ®ion,
Credentials: creds,
CredentialsChainVerboseErrors: aws.Bool(log.Level() >= 3),
MaxRetries: aws.Int(5),
}))
svc := sqs.New(sess)
if conn.ep.SQS.CreateQueue {
svc.CreateQueue(&sqs.CreateQueueInput{
QueueName: aws.String(conn.ep.SQS.QueueName),
Attributes: map[string]*string{
"DelaySeconds": aws.String("60"),
"MessageRetentionPeriod": aws.String("86400"),
},
})
}
conn.session = sess
conn.svc = svc
}
queueURL := conn.generateSQSURL()
// Send message
sendParams := &sqs.SendMessageInput{
MessageBody: aws.String(msg),
QueueUrl: aws.String(queueURL),
}
_, err := conn.svc.SendMessage(sendParams)
if err != nil {
fmt.Println(err)
return err
}
return nil
}
func newSQSConn(ep Endpoint) *SQSConn {
return &SQSConn{
ep: ep,
t: time.Now(),
}
}
func probeSQS(s string) bool {
// https://sqs.eu-central-1.amazonaws.com/123456789/myqueue
return strings.HasPrefix(s, "https://sqs.") &&
strings.Contains(s, ".amazonaws.com")
}
func sqsRegionFromPlainURL(s string) string {
parts := strings.Split(s, "https://sqs.")
if len(parts) > 1 {
parts = strings.Split(parts[1], ".amazonaws.com")
if len(parts) > 1 {
return parts[0]
}
}
return ""
}