func (perm BasePermission) export(principal *gocf.StringExpr,
arnPrefixParts []gocf.Stringable,
lambdaFunctionDisplayName string,
lambdaLogicalCFResourceName string,
template *gocf.Template,
S3Bucket string,
S3Key string,
logger *logrus.Logger) (string, error) {
lambdaPermission := gocf.LambdaPermission{
Action: gocf.String("lambda:InvokeFunction"),
FunctionName: gocf.GetAtt(lambdaLogicalCFResourceName, "Arn"),
Principal: principal,
}
// If the Arn isn't the wildcard value, then include it.
if nil != perm.SourceArn {
switch perm.SourceArn.(type) {
case string:
// Don't be smart if the Arn value is a user supplied literal
if "*" != perm.SourceArn.(string) {
lambdaPermission.SourceArn = gocf.String(perm.SourceArn.(string))
}
default:
lambdaPermission.SourceArn = perm.sourceArnExpr(arnPrefixParts...)
}
}
if "" != perm.SourceAccount {
lambdaPermission.SourceAccount = gocf.String(perm.SourceAccount)
}
arnLiteral, arnLiteralErr := json.Marshal(lambdaPermission.SourceArn)
if nil != arnLiteralErr {
return "", arnLiteralErr
}
resourceName := CloudFormationResourceName("LambdaPerm%s",
principal.Literal,
string(arnLiteral),
lambdaLogicalCFResourceName)
template.AddResource(resourceName, lambdaPermission)
return resourceName, nil
}
func (perm BasePermission) export(principal string,
arnPrefixParts []gocf.Stringable,
lambdaLogicalCFResourceName string,
template *gocf.Template,
S3Bucket string,
S3Key string,
logger *logrus.Logger) (string, error) {
lambdaPermission := gocf.LambdaPermission{
Action: gocf.String("lambda:InvokeFunction"),
FunctionName: gocf.GetAtt(lambdaLogicalCFResourceName, "Arn"),
Principal: gocf.String(principal),
}
// If the Arn isn't the wildcard value, then include it.
if nil != perm.SourceArn {
switch perm.SourceArn.(type) {
case string:
// Don't be smart if the Arn value is a user supplied literal
if "*" != perm.SourceArn.(string) {
lambdaPermission.SourceArn = gocf.String(perm.SourceArn.(string))
}
default:
lambdaPermission.SourceArn = perm.sourceArnExpr(arnPrefixParts...)
}
}
if "" != perm.SourceAccount {
lambdaPermission.SourceAccount = gocf.String(perm.SourceAccount)
}
hash := sha1.New()
hash.Write([]byte(fmt.Sprintf("%v", lambdaPermission)))
resourceName := fmt.Sprintf("LambdaPerm%s", hex.EncodeToString(hash.Sum(nil)))
template.AddResource(resourceName, lambdaPermission)
return resourceName, nil
}