public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "paths/{path}/regions")]
HttpRequest req,
ILogger log,
string path,
[Inject] ILoggerHelper loggerHelper,
[Inject] IHttpRequestHelper httpRequestHelper,
[Inject] IHttpResponseMessageHelper httpResponseMessageHelper,
[Inject] IJsonHelper jsonHelper,
[Inject] IRegionService regionService
)
{
loggerHelper.LogMethodEnter(log);
// validate the parameters are present
var dssCorrelationId = httpRequestHelper.GetDssCorrelationId(req);
if (string.IsNullOrEmpty(dssCorrelationId))
{
log.LogInformation($"Unable to locate '{nameof(dssCorrelationId)}' in request header");
}
if (!Guid.TryParse(dssCorrelationId, out var correlationGuid))
{
log.LogInformation($"Unable to parse '{nameof(dssCorrelationId)}' to a Guid");
correlationGuid = Guid.NewGuid();
}
if (string.IsNullOrEmpty(path))
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Missing value in request for '{nameof(path)}'");
return(httpResponseMessageHelper.BadRequest());
}
var pathRegex = new Regex(@"^[A-Za-z0-9.,-_]*$");
if (path.Length > 100 || !pathRegex.IsMatch(path))
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Invalid value in request for '{nameof(path)}'");
return(httpResponseMessageHelper.BadRequest());
}
Models.Region regionRequest;
try
{
loggerHelper.LogInformationMessage(log, correlationGuid, "Attempt to get resource from body of the request");
regionRequest = await httpRequestHelper.GetResourceFromRequest <Models.Region>(req);
if (regionRequest == null)
{
loggerHelper.LogInformationMessage(log, correlationGuid, "Missing body in req");
return(httpResponseMessageHelper.UnprocessableEntity());
}
}
catch (JsonException ex)
{
loggerHelper.LogError(log, correlationGuid, "Unable to retrieve body from req", ex);
return(httpResponseMessageHelper.UnprocessableEntity(ex));
}
if (path != regionRequest.Path)
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Request value for '{nameof(regionRequest.Path)}' does not match resource path value");
return(httpResponseMessageHelper.BadRequest());
}
if (string.IsNullOrEmpty(regionRequest.RegionEndpoint))
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Missing value in request for '{nameof(regionRequest.RegionEndpoint)}'");
return(httpResponseMessageHelper.BadRequest());
}
const string PlaceMarkerStub = "{0}";
string regionEndpoint = regionRequest.RegionEndpoint;
if (regionEndpoint.Contains(PlaceMarkerStub))
{
// this is allowable, so replace with a valid string to permit the Uri.IsWellFormedUriString to check the resulting string
regionEndpoint = regionEndpoint.Replace(PlaceMarkerStub, "valid");
}
if (!Uri.IsWellFormedUriString(regionEndpoint, UriKind.Absolute))
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Request value for '{nameof(regionRequest.RegionEndpoint)}' is not a valid absolute Uri");
return(httpResponseMessageHelper.BadRequest());
}
if (regionRequest.PageRegion == PageRegions.None || !Enum.IsDefined(typeof(PageRegions), regionRequest.PageRegion))
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Missing/invalid value in request for '{nameof(regionRequest.PageRegion)}'");
return(httpResponseMessageHelper.BadRequest());
}
if (!string.IsNullOrEmpty(regionRequest.OfflineHtml))
{
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(regionRequest.OfflineHtml);
if (htmlDoc.ParseErrors.Any())
{
loggerHelper.LogInformationMessage(log, correlationGuid, $"Request value for '{nameof(regionRequest.OfflineHtml)}' contains malformed HTML");
return(httpResponseMessageHelper.BadRequest());
}
}
loggerHelper.LogInformationMessage(log, correlationGuid, string.Format("Attempting to create region {0}", regionRequest.DocumentId));
var createdRegion = await regionService.CreateAsync(regionRequest);
loggerHelper.LogMethodExit(log);
return(createdRegion != null
? httpResponseMessageHelper.Ok(jsonHelper.SerializeObjectAndRenameIdProperty(createdRegion, "id", nameof(Models.Region.DocumentId)))
: httpResponseMessageHelper.NoContent());
}