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resource_aws_api_gateway_authorizer.go
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resource_aws_api_gateway_authorizer.go
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package aws
import (
"fmt"
"log"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/apigateway"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/helper/validation"
)
func resourceAwsApiGatewayAuthorizer() *schema.Resource {
return &schema.Resource{
Create: resourceAwsApiGatewayAuthorizerCreate,
Read: resourceAwsApiGatewayAuthorizerRead,
Update: resourceAwsApiGatewayAuthorizerUpdate,
Delete: resourceAwsApiGatewayAuthorizerDelete,
CustomizeDiff: resourceAwsApiGatewayAuthorizerCustomizeDiff,
Schema: map[string]*schema.Schema{
"authorizer_uri": {
Type: schema.TypeString,
Optional: true, // authorizer_uri is required for authorizer TOKEN/REQUEST
},
"identity_source": {
Type: schema.TypeString,
Optional: true,
Default: "method.request.header.Authorization",
},
"name": {
Type: schema.TypeString,
Required: true,
},
"rest_api_id": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"type": {
Type: schema.TypeString,
Optional: true,
Default: "TOKEN",
ValidateFunc: validation.StringInSlice([]string{
apigateway.AuthorizerTypeCognitoUserPools,
apigateway.AuthorizerTypeRequest,
apigateway.AuthorizerTypeToken,
}, false),
},
"authorizer_credentials": {
Type: schema.TypeString,
Optional: true,
},
"authorizer_result_ttl_in_seconds": {
Type: schema.TypeInt,
Optional: true,
ValidateFunc: validation.IntBetween(0, 3600),
},
"identity_validation_expression": {
Type: schema.TypeString,
Optional: true,
},
"provider_arns": {
Type: schema.TypeSet,
Optional: true, // provider_arns is required for authorizer COGNITO_USER_POOLS.
Elem: &schema.Schema{Type: schema.TypeString},
},
},
}
}
func resourceAwsApiGatewayAuthorizerCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).apigateway
input := apigateway.CreateAuthorizerInput{
IdentitySource: aws.String(d.Get("identity_source").(string)),
Name: aws.String(d.Get("name").(string)),
RestApiId: aws.String(d.Get("rest_api_id").(string)),
Type: aws.String(d.Get("type").(string)),
}
if err := validateAuthorizerType(d); err != nil {
return err
}
if v, ok := d.GetOk("authorizer_uri"); ok {
input.AuthorizerUri = aws.String(v.(string))
}
if v, ok := d.GetOk("authorizer_credentials"); ok {
input.AuthorizerCredentials = aws.String(v.(string))
}
if v, ok := d.GetOk("authorizer_result_ttl_in_seconds"); ok {
input.AuthorizerResultTtlInSeconds = aws.Int64(int64(v.(int)))
}
if v, ok := d.GetOk("identity_validation_expression"); ok {
input.IdentityValidationExpression = aws.String(v.(string))
}
if v, ok := d.GetOk("provider_arns"); ok {
input.ProviderARNs = expandStringList(v.(*schema.Set).List())
}
log.Printf("[INFO] Creating API Gateway Authorizer: %s", input)
out, err := conn.CreateAuthorizer(&input)
if err != nil {
return fmt.Errorf("Error creating API Gateway Authorizer: %s", err)
}
d.SetId(*out.Id)
return resourceAwsApiGatewayAuthorizerRead(d, meta)
}
func resourceAwsApiGatewayAuthorizerRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).apigateway
log.Printf("[INFO] Reading API Gateway Authorizer %s", d.Id())
input := apigateway.GetAuthorizerInput{
AuthorizerId: aws.String(d.Id()),
RestApiId: aws.String(d.Get("rest_api_id").(string)),
}
authorizer, err := conn.GetAuthorizer(&input)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "NotFoundException" {
log.Printf("[WARN] No API Gateway Authorizer found: %s", input)
d.SetId("")
return nil
}
return err
}
log.Printf("[DEBUG] Received API Gateway Authorizer: %s", authorizer)
d.Set("authorizer_credentials", authorizer.AuthorizerCredentials)
d.Set("authorizer_result_ttl_in_seconds", authorizer.AuthorizerResultTtlInSeconds)
d.Set("authorizer_uri", authorizer.AuthorizerUri)
d.Set("identity_source", authorizer.IdentitySource)
d.Set("identity_validation_expression", authorizer.IdentityValidationExpression)
d.Set("name", authorizer.Name)
d.Set("type", authorizer.Type)
d.Set("provider_arns", flattenStringList(authorizer.ProviderARNs))
return nil
}
func resourceAwsApiGatewayAuthorizerUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).apigateway
input := apigateway.UpdateAuthorizerInput{
AuthorizerId: aws.String(d.Id()),
RestApiId: aws.String(d.Get("rest_api_id").(string)),
}
operations := make([]*apigateway.PatchOperation, 0)
if d.HasChange("authorizer_uri") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/authorizerUri"),
Value: aws.String(d.Get("authorizer_uri").(string)),
})
}
if d.HasChange("identity_source") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/identitySource"),
Value: aws.String(d.Get("identity_source").(string)),
})
}
if d.HasChange("name") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/name"),
Value: aws.String(d.Get("name").(string)),
})
}
if d.HasChange("type") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/type"),
Value: aws.String(d.Get("type").(string)),
})
}
if d.HasChange("authorizer_credentials") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/authorizerCredentials"),
Value: aws.String(d.Get("authorizer_credentials").(string)),
})
}
if d.HasChange("authorizer_result_ttl_in_seconds") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/authorizerResultTtlInSeconds"),
Value: aws.String(fmt.Sprintf("%d", d.Get("authorizer_result_ttl_in_seconds").(int))),
})
}
if d.HasChange("identity_validation_expression") {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("replace"),
Path: aws.String("/identityValidationExpression"),
Value: aws.String(d.Get("identity_validation_expression").(string)),
})
}
if d.HasChange("provider_arns") {
old, new := d.GetChange("provider_arns")
os := old.(*schema.Set)
ns := new.(*schema.Set)
// providerARNs can't be empty, so add first and then remove
additionList := ns.Difference(os)
for _, v := range additionList.List() {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("add"),
Path: aws.String("/providerARNs"),
Value: aws.String(v.(string)),
})
}
removalList := os.Difference(ns)
for _, v := range removalList.List() {
operations = append(operations, &apigateway.PatchOperation{
Op: aws.String("remove"),
Path: aws.String("/providerARNs"),
Value: aws.String(v.(string)),
})
}
}
input.PatchOperations = operations
log.Printf("[INFO] Updating API Gateway Authorizer: %s", input)
_, err := conn.UpdateAuthorizer(&input)
if err != nil {
return fmt.Errorf("Updating API Gateway Authorizer failed: %s", err)
}
return resourceAwsApiGatewayAuthorizerRead(d, meta)
}
func resourceAwsApiGatewayAuthorizerDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).apigateway
input := apigateway.DeleteAuthorizerInput{
AuthorizerId: aws.String(d.Id()),
RestApiId: aws.String(d.Get("rest_api_id").(string)),
}
log.Printf("[INFO] Deleting API Gateway Authorizer: %s", input)
_, err := conn.DeleteAuthorizer(&input)
if err != nil {
// XXX: Figure out a way to delete the method that depends on the authorizer first
// otherwise the authorizer will be dangling until the API is deleted
if !strings.Contains(err.Error(), "ConflictException") {
return fmt.Errorf("Deleting API Gateway Authorizer failed: %s", err)
}
}
return nil
}
func resourceAwsApiGatewayAuthorizerCustomizeDiff(diff *schema.ResourceDiff, v interface{}) error {
// switch type between COGNITO_USER_POOLS and TOKEN/REQUEST will create new resource.
if diff.HasChange("type") {
o, n := diff.GetChange("type")
if o.(string) == apigateway.AuthorizerTypeCognitoUserPools || n.(string) == apigateway.AuthorizerTypeCognitoUserPools {
if err := diff.ForceNew("type"); err != nil {
return err
}
}
}
return nil
}
func validateAuthorizerType(d *schema.ResourceData) error {
authType := d.Get("type").(string)
// authorizer_uri is required for authorizer TOKEN/REQUEST
if authType == apigateway.AuthorizerTypeRequest || authType == apigateway.AuthorizerTypeToken {
if v, ok := d.GetOk("authorizer_uri"); !ok || v.(string) == "" {
return fmt.Errorf("authorizer_uri must be set non-empty when authorizer type is %s", authType)
}
}
// provider_arns is required for authorizer COGNITO_USER_POOLS.
if authType == apigateway.AuthorizerTypeCognitoUserPools {
if v, ok := d.GetOk("provider_arns"); !ok || len(v.(*schema.Set).List()) == 0 {
return fmt.Errorf("provider_arns must be set non-empty when authorizer type is %s", authType)
}
}
return nil
}