public Task Invoke(IDictionary <string, object> environment)
{
var path = Get <string>(environment, "owin.RequestPath");
//get the cargo engine safely
CargoEngine cargoEngine = null;
try { cargoEngine = _getCargoEngine(); } catch { }
if (cargoEngine != null)
{
string cargoRoutePrefix = null;
CargoConfiguration config = null;
//get configuration safely
try
{
config = cargoEngine.Configuration;
cargoRoutePrefix = config?.CargoRoutePrefix;
}
catch { }
//if the route prefix matches handle the request
if (!string.IsNullOrEmpty(cargoRoutePrefix) &&
path.StartsWith(cargoRoutePrefix))
{
bool authorized = cargoEngine.AuthenticateRequest(environment);
string strippedPath = path.Substring(cargoRoutePrefix.Length);
var method = Get <string>(environment, "owin.RequestMethod");
var scheme = Get <string>(environment, "owin.RequestScheme");
var headers = Get <IDictionary <string, string[]> >(environment, "owin.RequestHeaders");
var pathBase = Get <string>(environment, "owin.RequestPathBase");
var queryString = Get <string>(environment, "owin.RequestQueryString");
var body = Get <Stream>(environment, "owin.RequestBody");
var protocol = Get <string>(environment, "owin.RequestProtocol");
var cancellationToken = Get <CancellationToken>(environment, "owin.CallCancelled");
switch (method)
{
case "HEAD":
case "GET":
return(HandleGetAsync(cargoEngine, environment, method == "HEAD", strippedPath, cancellationToken));
case "POST":
return(HandlePostAsync(cargoEngine, environment, strippedPath, cancellationToken));
default:
return(Return405Async(environment));
}
}
}
//if we get here the request remained unhandled
return(_next(environment));
}
/// <summary>
/// Creates a new <see cref="CargoEngine"/> with given <see cref="CargoConfiguration"/>.
/// </summary>
/// <param name="configuration"></param>
public CargoEngine(CargoConfiguration configuration)
{
Configuration = configuration;
}