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resource_aws_sns_topic_subscription.go
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resource_aws_sns_topic_subscription.go
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package aws
import (
"fmt"
"log"
"github.com/hashicorp/terraform/helper/schema"
"github.com/awslabs/aws-sdk-go/aws"
"github.com/awslabs/aws-sdk-go/service/sns"
)
func resourceAwsSnsTopicSubscription() *schema.Resource {
return &schema.Resource{
Create: resourceAwsSnsTopicSubscriptionCreate,
Read: resourceAwsSnsTopicSubscriptionRead,
Update: resourceAwsSnsTopicSubscriptionUpdate,
Delete: resourceAwsSnsTopicSubscriptionDelete,
Schema: map[string]*schema.Schema{
"protocol": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: false,
},
"endpoint": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: false,
},
"topic_arn": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: false,
},
"delivery_policy": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: false,
},
"raw_message_delivery": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
ForceNew: false,
Default: false,
},
"arn": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
},
}
}
func resourceAwsSnsTopicSubscriptionCreate(d *schema.ResourceData, meta interface{}) error {
snsconn := meta.(*AWSClient).snsconn
if(d.Get("protocol") == "email") {
return fmt.Errorf("Email endpoints are not supported!")
}
output, err := subscribeToSNSTopic(d, snsconn)
if err != nil {
return err
}
log.Printf("New subscription ARN: %s", *output.SubscriptionARN)
d.SetId(*output.SubscriptionARN)
// Write the ARN to the 'arn' field for export
d.Set("arn", *output.SubscriptionARN)
return resourceAwsSnsTopicSubscriptionUpdate(d, meta)
}
func resourceAwsSnsTopicSubscriptionUpdate(d *schema.ResourceData, meta interface{}) error {
snsconn := meta.(*AWSClient).snsconn
// If any changes happened, un-subscribe and re-subscribe
if d.HasChange("protocol") || d.HasChange("endpoint") || d.HasChange("topic_arn") {
log.Printf("[DEBUG] Updating subscription %s", d.Id())
// Unsubscribe
_, err := snsconn.Unsubscribe(&sns.UnsubscribeInput{
SubscriptionARN: aws.String(d.Id()),
})
if err != nil {
return fmt.Errorf("Error unsubscribing from SNS topic: %s", err)
}
// Re-subscribe and set id
output, err := subscribeToSNSTopic(d, snsconn)
d.SetId(*output.SubscriptionARN)
}
if d.HasChange("raw_message_delivery") {
_, n := d.GetChange("raw_message_delivery")
attrValue := "false"
if n.(bool) {
attrValue = "true"
}
req := &sns.SetSubscriptionAttributesInput{
SubscriptionARN: aws.String(d.Id()),
AttributeName: aws.String("RawMessageDelivery"),
AttributeValue: aws.String(attrValue),
}
_, err := snsconn.SetSubscriptionAttributes(req)
if err != nil {
return fmt.Errorf("Unable to set raw message delivery attribute on subscription")
}
}
return resourceAwsSnsTopicSubscriptionRead(d, meta)
}
func resourceAwsSnsTopicSubscriptionRead(d *schema.ResourceData, meta interface{}) error {
snsconn := meta.(*AWSClient).snsconn
log.Printf("[DEBUG] Loading subscription %s", d.Id())
attributeOutput, err := snsconn.GetSubscriptionAttributes(&sns.GetSubscriptionAttributesInput{
SubscriptionARN: aws.String(d.Id()),
})
if err != nil {
return err
}
if attributeOutput.Attributes != nil && len(*attributeOutput.Attributes) > 0 {
attrHash := *attributeOutput.Attributes
log.Printf("[DEBUG] raw message delivery: %s", *attrHash["RawMessageDelivery"])
if *attrHash["RawMessageDelivery"] == "true" {
d.Set("raw_message_delivery", true)
} else {
d.Set("raw_message_delivery", false)
}
}
return nil
}
func resourceAwsSnsTopicSubscriptionDelete(d *schema.ResourceData, meta interface{}) error {
snsconn := meta.(*AWSClient).snsconn
log.Printf("[DEBUG] SNS delete topic subscription: %s", d.Id())
_, err := snsconn.Unsubscribe(&sns.UnsubscribeInput{
SubscriptionARN: aws.String(d.Id()),
})
if err != nil {
return err
}
return nil
}
func subscribeToSNSTopic(d *schema.ResourceData, snsconn *sns.SNS) (output *sns.SubscribeOutput, err error) {
protocol := d.Get("protocol").(string)
endpoint := d.Get("endpoint").(string)
topic_arn := d.Get("topic_arn").(string)
log.Printf("[DEBUG] SNS create topic subscription: %s (%s) @ '%s'", endpoint, protocol, topic_arn)
req := &sns.SubscribeInput{
Protocol: aws.String(protocol),
Endpoint: aws.String(endpoint),
TopicARN: aws.String(topic_arn),
}
output, err = snsconn.Subscribe(req)
if err != nil {
return nil, fmt.Errorf("Error creating SNS topic: %s", err)
}
log.Printf("[DEBUG] Created new subscription!")
return output, nil
}