public Task <IBinding> TryCreateAsync(BindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
SmtpAttribute attribute = parameter.GetCustomAttribute <SmtpAttribute>(inherit: false);
if (attribute == null)
{
return(Task.FromResult <IBinding>(null));
}
//if (context.Parameter.ParameterType != typeof(MailMessage) &&
// context.Parameter.ParameterType != typeof(MailMessage).MakeByRefType())
//{
// throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture,
// "Can't bind SmtpAttribute to type '{0}'.", parameter.ParameterType));
//}
if (string.IsNullOrEmpty(_config.Host))
{
throw new InvalidOperationException(
string.Format("The Smtp Host must be set either via a '{0}' app setting, via a '{0}' environment variable, or directly in code via SmtpConfiguration.Host.",
SmtpConfiguration.AzureWebJobsSmtpHost));
}
if (_config.Port == 0)
{
throw new InvalidOperationException(
string.Format("The Smtp Port must be set either via a '{0}' app setting, via a '{0}' environment variable, or directly in code via SmtpConfiguration.Port.",
SmtpConfiguration.AzureWebJobsSmtpPort));
}
if (string.IsNullOrEmpty(_config.User))
{
throw new InvalidOperationException(
string.Format("The Smtp User must be set either via a '{0}' app setting, via a '{0}' environment variable, or directly in code via SmtpConfiguration.User.",
SmtpConfiguration.AzureWebJobsSmtpUser));
}
if (string.IsNullOrEmpty(_config.Password))
{
throw new InvalidOperationException(
string.Format("The Smtp Password must be set either via a '{0}' app setting, via a '{0}' environment variable, or directly in code via SmtpConfiguration.Password.",
SmtpConfiguration.AzureWebJobsSmtpPassword));
}
return(Task.FromResult <IBinding>(new SmtpBinding(parameter, attribute, _config, _nameResolver, context)));
}
public SmtpBinding(ParameterInfo parameter, SmtpAttribute attribute, SmtpConfiguration config, INameResolver nameResolver, BindingProviderContext context)
{
_parameter = parameter;
_attribute = attribute;
_config = config;
_nameResolver = nameResolver;
_smtpClient = new SmtpClient();
_smtpClient.Host = _config.Host;
_smtpClient.Port = _config.Port;
_smtpClient.EnableSsl = _config.EnableSsl;
_smtpClient.Credentials = new NetworkCredential(_config.User, _config.Password);
if (!string.IsNullOrEmpty(_attribute.To))
{
_toFieldBindingTemplate = CreateBindingTemplate(_attribute.To, context.BindingDataContract);
}
if (!string.IsNullOrEmpty(_attribute.Cc))
{
_ccFieldBindingTemplate = CreateBindingTemplate(_attribute.Cc, context.BindingDataContract);
}
if (!string.IsNullOrEmpty(_attribute.Bcc))
{
_bccFieldBindingTemplate = CreateBindingTemplate(_attribute.Bcc, context.BindingDataContract);
}
if (!string.IsNullOrEmpty(_attribute.From))
{
_fromFieldBindingTemplate = CreateBindingTemplate(_attribute.From, context.BindingDataContract);
}
if (!string.IsNullOrEmpty(_attribute.Subject))
{
_subjectFieldBindingTemplate = CreateBindingTemplate(_attribute.Subject, context.BindingDataContract);
}
if (!string.IsNullOrEmpty(_attribute.Body))
{
_bodyFieldBindingTemplate = CreateBindingTemplate(_attribute.Body, context.BindingDataContract);
}
}
