/// <summary>
/// Validates the input email request.
/// </summary>
/// <param name="request">The <see cref="Services.EmailService.MessageContracts.SendEmailRequest"/> to be validated.</param>
/// <returns>A <see cref="Services.EmailService.MessageContracts.InvalidRecipients"/> that contains the information if Recipients address is invalid or with bad domain.</returns>
private InvalidRecipients ValidateEmailAddress(SendEmailRequest request)
{
InvalidRecipients resplist = new InvalidRecipients();
Logger.Info("[ValidateEmailAddress] validating Recipients email addresses.");
Logger.Info(request.ToString());
//Validate domain
foreach (var email in request.Recipients.Where(email => _badDomainCheckProvider.IsBadDomain(email)))
{
Logger.ErrorFormat("The recipient email address [{0}] is not a supported domain.", email);
resplist.BadDomains.Add(email);
}
if (request.CarbonCopyList == null)
{
return(resplist);
}
//validate bad domain
foreach (var email in request.CarbonCopyList.Where(email => _badDomainCheckProvider.IsBadDomain(email)))
{
Logger.ErrorFormat("The cclist email address [{0}] is not a supported domain.", email);
resplist.BadDomains.Add(email);
}
return(resplist);
}
/// <summary>
/// Validates the input email request.
/// </summary>
/// <param name="request">The <see cref="Services.EmailService.MessageContracts.SendEmailRequest"/> to be validated.</param>
/// <returns><see langword="true"/> if <paramref name="request"/> is a valid request else <see langword="false"/>.</returns>
private bool ValidateEmailParameters(SendEmailRequest request)
{
Logger.Info("[ValidateEmailParameters] validating input parameters.");
Logger.Info(request.ToString());
if (request.Subject != null)
{
request.Subject = request.Subject.Trim();
}
if (request.Body != null)
{
request.Body = request.Body.Trim();
}
if (request.FromEmailAddress != null)
{
request.FromEmailAddress = request.FromEmailAddress.Trim();
}
if (string.IsNullOrEmpty(request.Subject))
{
Logger.Error("The subject is empty.");
return(false);
}
if (string.IsNullOrEmpty(request.Body))
{
Logger.Error("The email body content is empty.");
return(false);
}
if (string.IsNullOrEmpty(request.FromEmailAddress))
{
Logger.Error("The from email address is empty.");
return(false);
}
if (request.Recipients == null || !request.Recipients.Any())
{
Logger.Error("The recipients list is empty.");
return(false);
}
if (!IsValidEmailAddress(request.FromEmailAddress))
{
Logger.ErrorFormat("The from email address [{0}] is invalid.", request.FromEmailAddress);
return(false);
}
foreach (var email in request.Recipients.Where(email => !IsValidEmailAddress(email)))
{
Logger.ErrorFormat("The recipient email address [{0}] is invalid.", email);
return(false);
}
if (request.CarbonCopyList != null && request.CarbonCopyList.Any())
{
foreach (var email in request.CarbonCopyList.Where(email => !IsValidEmailAddress(email)))
{
Logger.ErrorFormat("The cclist email address [{0}] is invalid.", email);
return(false);
}
}
var attachments = request.Attachments;
var invalidAttachments = false;
if (attachments != null && attachments.Any())
{
if (attachments.Any(attachment => string.IsNullOrEmpty(attachment.Content) || string.IsNullOrEmpty(attachment.Name)))
{
Logger.Error("The attachment is invalid.");
return(false);
}
foreach (var attachment in attachments)
{
if (attachment.Content != null)
{
attachment.Content = attachment.Content.Trim();
}
if (attachment.Name != null)
{
attachment.Name = attachment.Name.Trim();
}
if (!string.IsNullOrEmpty(attachment.Content) && !string.IsNullOrEmpty(attachment.Name))
{
continue;
}
invalidAttachments = true;
break;
}
}
if (invalidAttachments)
{
Logger.Error("The attachment is invalid.");
return(false);
}
return(true);
}