/// <summary>
/// Processes the request sent to the specified Uri.
/// This method assumes that the request is already validated.
/// </summary>
/// <param name="context">An instance of HttpContext containing the request details.</param>
/// <param name="statusCode">The HttpStatusCode indicating status of the request.</param>
/// <returns>
/// A string containing the response to the request.
/// </returns>
public string ProcessRequest(HttpContext context, out HttpStatusCode statusCode)
{
string response = string.Empty;
SyndicationRequestType requestType = SyndicationHelper.GetSyndicationRequestType(context, this.baseUri);
if (SyndicationRequestType.Help == requestType)
{
statusCode = HttpStatusCode.OK;
response = Properties.Resources.Help;
}
else
{
string searchQuery = HttpUtility.UrlDecode(context.Request.QueryString.ToString());
int pageSize = int.Parse(ConfigurationManager.AppSettings["DefaultPageSize"], CultureInfo.InvariantCulture);
int maxPageSize = int.Parse(ConfigurationManager.AppSettings["MaxPageSize"], CultureInfo.InvariantCulture);
if (SyndicationRequestType.DefaultSearchWithPageNo == requestType ||
SyndicationRequestType.RSSSearchWithPageNo == requestType ||
SyndicationRequestType.ATOMSearchWithPageNo == requestType)
{
pageSize = int.Parse(SyndicationHelper.GetValueOfParameterFromUri(context, this.baseUri,
requestType, SyndicationParameterType.PageSize), CultureInfo.InvariantCulture);
pageSize = (pageSize > maxPageSize) ? maxPageSize : pageSize;
}
AuthenticatedToken token = (AuthenticatedToken)context.Items["AuthenticatedToken"];
List <Resource> resources;
try
{
SearchEngine searchEngin =
new SearchEngine(pageSize, true, token);
int totalRecords;
ZentityContext zentityContext = CoreHelper.CreateZentityContext();
SortProperty sortProperty =
new SortProperty("dateModified", SortDirection.Descending);
resources = searchEngin.SearchResources(searchQuery,
zentityContext, sortProperty, 0, out totalRecords).ToList();
;
}
catch (SearchException exception)
{
statusCode = HttpStatusCode.BadRequest;
response = exception.Message;
return(response);
}
SyndicationFeed feed = SyndicationHelper.CreateSyndicationFeed(resources, searchQuery, context.Request.Url);
response = SyndicationHelper.GetResponseDocument(feed, requestType);
statusCode = HttpStatusCode.OK;
}
return(response);
}
/// <summary>
/// Validates the specified request.
/// </summary>
/// <param name="context">An instance of HttpContext containing the request details.</param>
/// <param name="errorMessage">An error message describing the reason if validation is failed.</param>
/// <returns>
/// True if the request is valid, otherwise false.
/// </returns>
public bool ValidateRequest(HttpContext context, out string errorMessage)
{
errorMessage = string.Empty;
string httpRequestType = context.Request.RequestType.ToUpperInvariant();
// Verify request type is GET
if (!(PlatformConstants.GetRequestType.Equals(httpRequestType)))
{
errorMessage = Resources.SYNDICATION_INVALID_METHOD;
return(false);
}
SyndicationRequestType requestType = SyndicationHelper.GetSyndicationRequestType(context, this.baseUri);
if (SyndicationRequestType.Unknown == requestType)
{
errorMessage = Resources.SYNDICATION_BAD_REQUEST;
return(false);
}
return(true);
}
