public static async Task <JObject> SendEmailSASUri(HttpRequest req, Logging logging)
{
string requestBody = new StreamReader(req.Body).ReadToEndAsync().Result;
dynamic taskInformation = JsonConvert.DeserializeObject(requestBody);
string _TaskInstanceId = taskInformation["TaskInstanceId"].ToString();
string _ExecutionUid = taskInformation["ExecutionUid"].ToString();
try
{
//Get SAS URI
string _blobStorageAccountName = taskInformation["Source"]["StorageAccountName"].ToString();
string _blobStorageContainerName = taskInformation["Source"]["StorageAccountContainer"].ToString();
string _blobStorageFolderPath = taskInformation["Source"]["RelativePath"].ToString();
string _dataFileName = taskInformation["Source"]["DataFileName"].ToString();
int _accessDuration = (int)taskInformation["Source"]["SasURIDaysValid"];
string _targetSystemUidInPHI = taskInformation["Source"]["TargetSystemUidInPHI"];
string _FileUploaderWebAppURL = taskInformation["Source"]["FileUploaderWebAppURL"];
string SASUri = Storage.CreateSASToken(_blobStorageAccountName, _blobStorageContainerName, _blobStorageFolderPath, _dataFileName, _accessDuration);
//Send Email
string _emailRecipient = taskInformation["Target"]["EmailRecipient"].ToString();
string _emailRecipientName = taskInformation["Target"]["EmailRecipientName"].ToString();
string _emailTemplateFileName = taskInformation["Target"]["EmailTemplateFileName"].ToString();
string _senderEmail = taskInformation["Target"]["SenderEmail"].ToString();
string _senderDescription = taskInformation["Target"]["SenderDescription"].ToString();
string _subject = taskInformation["Target"]["EmailSubject"].ToString();
//Get Plain Text and Email Subject from Template Files
Dictionary <string, string> Params = new Dictionary <string, string>
{
{ "NAME", _emailRecipientName },
{ "SASTOKEN", SASUri },
{ "FileUploaderUrl", _FileUploaderWebAppURL },
{ "TargetSystemUidInPHI", _targetSystemUidInPHI },
};
string _plainTextContent = System.IO.File.ReadAllText(Shared.GlobalConfigs.GetStringConfig("HTMLTemplateLocation") + _emailTemplateFileName + ".txt");
_plainTextContent = _plainTextContent.FormatWith(Params, MissingKeyBehaviour.ThrowException, null, '{', '}');
string _htmlContent = System.IO.File.ReadAllText(Shared.GlobalConfigs.GetStringConfig("HTMLTemplateLocation") + _emailTemplateFileName + ".html");
_htmlContent = _htmlContent.FormatWith(Params, MissingKeyBehaviour.ThrowException, null, '{', '}');
var apiKey = System.Environment.GetEnvironmentVariable("SENDGRID_APIKEY");
var client = new SendGridClient(new SendGridClientOptions {
ApiKey = apiKey, HttpErrorAsException = true
});
var msg = new SendGridMessage()
{
From = new EmailAddress(_senderEmail, _senderDescription),
Subject = _subject,
PlainTextContent = _plainTextContent,
HtmlContent = _htmlContent
};
msg.AddTo(new EmailAddress(_emailRecipient, _emailRecipientName));
try
{
var response = await client.SendEmailAsync(msg).ConfigureAwait(false);
logging.LogInformation($"SendGrid Response StatusCode - {response.StatusCode}");
}
catch (Exception ex)
{
SendGridErrorResponse errorResponse = JsonConvert.DeserializeObject <SendGridErrorResponse>(ex.Message);
logging.LogInformation($"Error Message - {ex.Message}");
throw new Exception("Could not send email");
}
//Update Task Instace
TaskMetaDataDatabase TMD = new TaskMetaDataDatabase();
TMD.LogTaskInstanceCompletion(System.Convert.ToInt64(_TaskInstanceId), System.Guid.Parse(_ExecutionUid), TaskMetaData.BaseTasks.TaskStatus.Complete, Guid.Empty, "");
JObject Root = new JObject
{
["Result"] = "Complete"
};
return(Root);
}
catch (Exception TaskException)
{
logging.LogErrors(TaskException);
TaskMetaDataDatabase TMD = new TaskMetaDataDatabase();
TMD.LogTaskInstanceCompletion(System.Convert.ToInt64(_TaskInstanceId), System.Guid.Parse(_ExecutionUid), TaskMetaData.BaseTasks.TaskStatus.FailedRetry, Guid.Empty, "Failed when trying to Generate Sas URI and Send Email");
JObject Root = new JObject
{
["Result"] = "Failed"
};
return(Root);
}
}
/// <summary>
/// Get error based on Response from SendGrid API
/// Method taken from the StrongGrid project (https://github.com/Jericho/StrongGrid) with some minor changes. Thanks Jericho (https://github.com/Jericho)
/// </summary>
/// <param name="message">Response Message from API</param>
/// <returns>Return string with the error Status Code and the Message</returns>
private static async Task <string> GetErrorMessage(HttpResponseMessage message)
{
var errorStatusCode = (int)message.StatusCode;
var errorReasonPhrase = message.ReasonPhrase;
string errorValue = null;
string fieldValue = null;
string helpValue = null;
if (message.Content != null)
{
var responseContent = await message.Content.ReadAsStringAsync().ConfigureAwait(false);
if (!string.IsNullOrEmpty(responseContent))
{
try
{
// Check for the presence of property called 'errors'
var jObject = JObject.Parse(responseContent);
var errorsArray = (JArray)jObject["errors"];
if (errorsArray != null && errorsArray.Count > 0)
{
// Get the first error message
errorValue = errorsArray[0]["message"].Value <string>();
// Check for the presence of property called 'field'
if (errorsArray[0]["field"] != null)
{
fieldValue = errorsArray[0]["field"].Value <string>();
}
// Check for the presence of property called 'help'
if (errorsArray[0]["help"] != null)
{
helpValue = errorsArray[0]["help"].Value <string>();
}
}
else
{
// Check for the presence of property called 'error'
var errorProperty = jObject["error"];
if (errorProperty != null)
{
errorValue = errorProperty.Value <string>();
}
}
}
catch
{
// Intentionally ignore parsing errors to return default error message
}
}
}
SendGridErrorResponse errorResponse = new SendGridErrorResponse
{
ErrorHttpStatusCode = errorStatusCode,
ErrorReasonPhrase = errorReasonPhrase,
SendGridErrorMessage = errorValue,
FieldWithError = fieldValue,
HelpLink = helpValue
};
return(Newtonsoft.Json.JsonConvert.SerializeObject(errorResponse));
}
