/
awsSns.go
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/
awsSns.go
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package notification
// [AWS SDK for Go Document] http://docs.aws.amazon.com/sdk-for-go/api/service/sns/
import (
"context"
"encoding/json"
"go.uber.org/zap"
"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/sns"
"github.com/swagchat/chat-api/models"
"github.com/swagchat/chat-api/utils"
)
type AwsSnsProvider struct {
region string
accessKeyId string
secretAccessKey string
roomTopicNamePrefix string
applicationArnIos string
applicationArnAndroid string
}
type PushNotification struct {
sns *sns.SNS
}
type wrapper struct {
APNS string `json:"APNS"`
APNSSandbox string `json:"APNS_SANDBOX"`
Default string `json:"default"`
GCM string `json:"GCM"`
}
type iosPushWrapper struct {
APS iosPush `json:"aps"`
}
type iosPush struct {
Alert string `json:"alert,omitempty"`
Badge *int `json:"badge,omitempty"`
Sound string `json:"sound,omitempty"`
ContentAvailable *int `json:"content-available,omitempty"`
Category string `json:"category,omitempty"`
ThreadId string `json:"thread-id,omitempty"`
RoomId string `json:"roomId,omitempty"`
}
type gcmPushWrapper struct {
Data gcmPush `json:"data"`
}
type gcmPush struct {
Message string `json:"message,omitempty"`
Custom interface{} `json:"custom"`
Badge *int `json:"badge,omitempty"`
}
func (provider AwsSnsProvider) Init() error {
return nil
}
func (provider AwsSnsProvider) newSnsClient() *sns.SNS {
session, _ := session.NewSession(&aws.Config{
Region: aws.String(provider.region),
Credentials: credentials.NewStaticCredentials(provider.accessKeyId, provider.secretAccessKey, ""),
})
return sns.New(session)
}
func (provider AwsSnsProvider) CreateTopic(roomId string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
params := &sns.CreateTopicInput{
Name: aws.String(utils.AppendStrings(utils.Cfg.Notification.RoomTopicNamePrefix, roomId)),
}
createTopicOutput, err := client.CreateTopic(params)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while creating topic.", err)
} else {
result.Data = createTopicOutput.TopicArn
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) DeleteTopic(notificationTopicId string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
params := &sns.DeleteTopicInput{
TopicArn: aws.String(notificationTopicId),
}
_, err := client.DeleteTopic(params)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while deleting topic.", err)
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) CreateEndpoint(userId string, platform int, deviceToken string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
var platformApplicationArn string
switch platform {
case models.PLATFORM_IOS:
platformApplicationArn = utils.Cfg.Notification.AwsApplicationArnIos
case models.PLATFORM_ANDROID:
platformApplicationArn = utils.Cfg.Notification.AwsApplicationArnAndroid
default:
// TODO new error
platformApplicationArn = ""
}
client := provider.newSnsClient()
createPlatformEndpointInputParams := &sns.CreatePlatformEndpointInput{
PlatformApplicationArn: aws.String(platformApplicationArn),
Token: aws.String(deviceToken),
CustomUserData: aws.String(userId),
}
createPlatformEndpointOutput, err := client.CreatePlatformEndpoint(createPlatformEndpointInputParams)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while creating endpoint.", err)
} else {
result.Data = createPlatformEndpointOutput.EndpointArn
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) DeleteEndpoint(notificationDeviceId string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
deleteEndpointInputParams := &sns.DeleteEndpointInput{
EndpointArn: aws.String(notificationDeviceId),
}
_, err := client.DeleteEndpoint(deleteEndpointInputParams)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while deleting endpoint.", err)
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) Subscribe(notificationTopicId string, notificationDeviceId string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
subscribeInputParams := &sns.SubscribeInput{
Protocol: aws.String("Application"),
TopicArn: aws.String(notificationTopicId),
Endpoint: aws.String(notificationDeviceId),
}
subscribeOutput, err := client.Subscribe(subscribeInputParams)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while subscribing.", err)
} else {
result.Data = subscribeOutput.SubscriptionArn
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) Unsubscribe(notificationSubscribeId string) NotificationChannel {
nc := make(NotificationChannel, 1)
go func() {
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
params := &sns.UnsubscribeInput{
SubscriptionArn: aws.String(notificationSubscribeId),
}
_, err := client.Unsubscribe(params)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while unsubscribing.", err)
}
nc <- result
}()
return nc
}
func (provider AwsSnsProvider) Publish(ctx context.Context, notificationTopicId, roomId string, messageInfo *MessageInfo) NotificationChannel {
nc := make(NotificationChannel, 1)
defer close(nc)
result := NotificationResult{}
client := provider.newSnsClient()
contentAvailable := 1
iosPush := iosPush{
Alert: messageInfo.Text,
ContentAvailable: &contentAvailable,
Sound: "default",
RoomId: roomId,
}
if &messageInfo.Badge != nil {
iosPush.Badge = &messageInfo.Badge
}
wrapper := wrapper{}
ios := iosPushWrapper{
APS: iosPush,
}
b, err := json.Marshal(ios)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while publishing.", err)
nc <- result
}
wrapper.APNS = string(b[:])
wrapper.APNSSandbox = wrapper.APNS
wrapper.Default = messageInfo.Text
gcm := gcmPushWrapper{
Data: gcmPush{
Message: messageInfo.Text,
Badge: &messageInfo.Badge,
},
}
b, err = json.Marshal(gcm)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while publishing.", err)
nc <- result
}
wrapper.GCM = string(b[:])
pushData, err := json.Marshal(wrapper)
if err != nil {
result.ProblemDetail = createProblemDetail("An error occurred while publishing.", err)
nc <- result
}
message := string(pushData[:])
params := &sns.PublishInput{
Message: aws.String(message),
MessageStructure: aws.String("json"),
Subject: aws.String("subject"),
TopicArn: aws.String(notificationTopicId),
}
res, err := client.Publish(params)
utils.AppLogger.Info("",
zap.String("msg", "[Amazon SNS]Publish message."),
zap.String("topicArn", notificationTopicId),
zap.String("message", message),
zap.String("response", res.String()),
)
nc <- result
select {
case <-ctx.Done():
return nc
case <-nc:
return nc
}
}