private List <WebhookParameter> ParseWebhookParameters(Webhook webhook)
{
List <WebhookParameter> webhookParameters = new List <WebhookParameter>();
Uri webhookUri = new Uri(webhook.WebhookUrl);
_logger.LogInformation($"Parsing query string for uri {webhookUri}.");
var parameters = HttpUtility.ParseQueryString(webhookUri.Query);
foreach (var key in parameters.Keys)
{
string value = parameters[key.ToString()];
if (value.StartsWith("{") && value.EndsWith("}"))
{
//trim the brankets
string parameterName = value.Substring(1, value.Length - 2);
_logger.LogInformation($"Creating webhook parameter {parameterName} for webhook {webhook.WebhookName}.");
WebhookParameter webhookParam = new WebhookParameter
{
OfferId = webhook.OfferId,
Name = parameterName,
// TODO: do we need to indicate an incomplete parameter?
Value = string.Empty
};
webhookParameters.Add(webhookParam);
}
}
return(webhookParameters);
}
private async Task UpdateWebhookParameters(Offer offer, Webhook webhook, long webhookId)
{
List <WebhookParameter> incompleteParams = ParseWebhookParameters(webhook);
List <WebhookWebhookParameter> joinEntries = await _webhookWebhookParameterService.GetAllJoinEntries(webhookId);
Dictionary <string, WebhookParameter> paramsDb = new Dictionary <string, WebhookParameter>();
HashSet <string> usedParamNames = new HashSet <string>();
// Populate paramsDb so that it maps the WebhookParameter name to the WebhookParameter object
foreach (WebhookWebhookParameter entry in joinEntries)
{
WebhookParameter webhookParameter = await _context.WebhookParameters.FindAsync(entry.WebhookParameterId);
if (!paramsDb.ContainsKey(webhookParameter.Name))
{
paramsDb.Add(webhookParameter.Name, webhookParameter);
}
}
foreach (WebhookParameter incompleteParam in incompleteParams)
{
// Check if a param with the same name as the incompleteParam already exists
if (!paramsDb.ContainsKey(incompleteParam.Name))
{
// A param with the same name as the incompleteParam does not exist, so create it
await _webhookParameterService.CreateAsync(offer.OfferName, webhookId, incompleteParam);
}
// Keep track of all the new parameters we are using in usedParamNames
if (!usedParamNames.Contains(incompleteParam.Name))
{
usedParamNames.Add(incompleteParam.Name);
}
}
foreach (KeyValuePair <string, WebhookParameter> paramDb in paramsDb)
{
// Check if there is a param in the db that we are no longer using
if (!usedParamNames.Contains(paramDb.Key))
{
WebhookWebhookParameter webhookWebhookParameter = await _context.WebhookWebhookParameters.FindAsync(webhookId, paramDb.Value.Id);
// Remove the join entry for any unused params
_context.WebhookWebhookParameters.Remove(webhookWebhookParameter);
await _context._SaveChangesAsync();
_logger.LogInformation(LoggingUtils.ComposeResourceDeletedMessage(
nameof(WebhookWebhookParameter),
$"(webhookId={webhookId}, webhookParameterId={webhookWebhookParameter.WebhookParameter})",
offerName: offer.OfferName));
}
}
}
/// <summary>
/// Creates a webhookParameter object within an offer.
/// </summary>
/// <param name="offerName">The name of the offer.</param>
/// <param name="webhookId">The id of the webhook that the parameter is associated with.</param>
/// <param name="webhookParameter">The webhookParameter to create.</param>
/// <returns>The created webhookParameter.</returns>
public async Task <WebhookParameter> CreateAsync(string offerName, long webhookId, WebhookParameter webhookParameter)
{
if (webhookParameter is null)
{
throw new LunaBadRequestUserException(LoggingUtils.ComposePayloadNotProvidedErrorMessage(typeof(WebhookParameter).Name),
UserErrorCode.PayloadNotProvided);
}
if (ExpressionEvaluationUtils.ReservedParameterNames.Contains(webhookParameter.Name))
{
_logger.LogInformation($"Webhook {webhookId} is referencing system parameter {webhookParameter.Name}");
return(webhookParameter);
//throw new LunaConflictUserException(LoggingUtils.ComposeAlreadyExistsErrorMessage(typeof(WebhookParameter).Name,
// webhookParameter.Name, offerName: offerName));
}
_logger.LogInformation(LoggingUtils.ComposeCreateResourceMessage(typeof(WebhookParameter).Name, webhookParameter.Name, offerName: offerName, payload: JsonSerializer.Serialize(webhookParameter)));
// Get the offer associated with the offerName provided
var offer = await _offerService.GetAsync(offerName);
// Check if the WebhookParameter already exists
if (await ExistsAsync(offerName, webhookParameter.Name))
{
// Just create a new join entry to keep track of the fact that this Webhook is using this parameter
WebhookParameter webhookParameterDb = await GetAsync(offerName, webhookParameter.Name);
await _webhookWebhookParameterService.CreateJoinEntryAsync(webhookId, webhookParameterDb.Id);
return(webhookParameterDb);
}
// Set the FK to offer
webhookParameter.OfferId = offer.Id;
// Add webhookParameter to db
_context.WebhookParameters.Add(webhookParameter);
await _context._SaveChangesAsync();
await _webhookWebhookParameterService.CreateJoinEntryAsync(webhookId, webhookParameter.Id);
_logger.LogInformation(LoggingUtils.ComposeResourceCreatedMessage(typeof(WebhookParameter).Name, webhookParameter.Name, offerName: offerName));
return(webhookParameter);
}
public async Task <ActionResult> UpdateAsync(string offerName, string name, [FromBody] WebhookParameter webhookParameter)
{
AADAuthHelper.VerifyUserAccess(this.HttpContext, _logger, true);
if (webhookParameter == null)
{
throw new LunaBadRequestUserException(LoggingUtils.ComposePayloadNotProvidedErrorMessage(nameof(webhookParameter)), UserErrorCode.PayloadNotProvided);
}
if (!name.Equals(webhookParameter.Name))
{
throw new LunaBadRequestUserException(LoggingUtils.ComposeNameMismatchErrorMessage(typeof(WebhookParameter).Name),
UserErrorCode.NameMismatch);
}
_logger.LogInformation($"Update webhook parameter {name} in offer {offerName} with payload {JsonSerializer.Serialize(webhookParameter)}.");
await _webhookParameterService.UpdateAsync(offerName, name, webhookParameter);
return(Ok(webhookParameter));
}
/// <summary>
/// Updates a webhookParameter within an offer.
/// </summary>
/// <param name="offerName">The name of the offer.</param>
/// <param name="parameterName">The name of the webhookParameter to update.</param>
/// <param name="webhookParameter">The updated webhookParameter.</param>
/// <returns>The updated webhookParameter.</returns>
public async Task <WebhookParameter> UpdateAsync(string offerName, string parameterName, WebhookParameter webhookParameter)
{
if (webhookParameter is null)
{
throw new LunaBadRequestUserException(LoggingUtils.ComposePayloadNotProvidedErrorMessage(typeof(WebhookParameter).Name),
UserErrorCode.PayloadNotProvided);
}
_logger.LogInformation(LoggingUtils.ComposeUpdateResourceMessage(typeof(WebhookParameter).Name, webhookParameter.Name, offerName: offerName, payload: JsonSerializer.Serialize(webhookParameter)));
// Get the webhookParameter that matches the name provided
var webhookParameterDb = await GetAsync(offerName, parameterName);
// Copy over the changes
webhookParameterDb.Copy(webhookParameter);
// Update webhookParameterDb values and save changes in db
_context.WebhookParameters.Update(webhookParameterDb);
await _context._SaveChangesAsync();
_logger.LogInformation(LoggingUtils.ComposeResourceUpdatedMessage(typeof(WebhookParameter).Name, webhookParameter.Name, offerName: offerName));
return(webhookParameterDb);
}