/// <summary>
/// Verifies the integrity of the subscription request. Code adapted from SprightlySoft SNSAutoConfirm sample. License is:
/// SprightlySoft SNS Auto Confirm. License is reproduced above in SNSUtility
/// </summary>
/// <returns>True if the subscription matches</returns>
public Boolean VerifySignature()
{
StringBuilder sbGenerated = new StringBuilder();
sbGenerated.Append("Message\n").Append(Message).Append("\n");
sbGenerated.Append("MessageId\n").Append(MessageId).Append("\n");
if (!String.IsNullOrEmpty(Subject))
{
sbGenerated.Append("Subject\n").Append(Subject).Append("\n");
}
sbGenerated.Append("Timestamp\n").Append(Timestamp).Append("\n");
sbGenerated.Append("TopicArn\n").Append(TopicArn).Append("\n");
sbGenerated.Append("Type\n").Append(Type).Append("\n");
return(SNSUtility.ValidateSignature(sbGenerated.ToString(), SigningCertLink, Signature));
}
/// <summary>
/// Verifies the integrity of the subscription request. Code adapted from SprightlySoft SNSAutoConfirm sample. License is:
/// SprightlySoft SNS Auto Confirm. License is reproduced above in SNSUtility
/// </summary>
/// <returns>True if the subscription matches</returns>
public Boolean VerifySignature()
{
// we can bypass the signature if the subscribe URL we are being asked to hit doesn't belong to AmazonAWS.
Uri uri = new Uri(SubscribeLink);
if (!uri.Host.EndsWith("amazonaws.com", StringComparison.OrdinalIgnoreCase))
{
return(false);
}
StringBuilder sbGenerated = new StringBuilder();
sbGenerated.Append("Message\n").Append(Message).Append("\n");
sbGenerated.Append("MessageId\n").Append(MessageId).Append("\n");
sbGenerated.Append("SubscribeURL\n").Append(SubscribeLink).Append("\n");
sbGenerated.Append("Timestamp\n").Append(Timestamp).Append("\n");
sbGenerated.Append("Token\n").Append(Token).Append("\n");
sbGenerated.Append("TopicArn\n").Append(TopicArn).Append("\n");
sbGenerated.Append("Type\n").Append(Type).Append("\n");
return(SNSUtility.ValidateSignature(sbGenerated.ToString(), SigningCertLink, Signature));
}