static void handleRequest(APIContext context)
{
context.Id = Guid.NewGuid();
if (context == null)
{
Program.LogMsg("context is null");
}
if (context.Request == null)
{
Program.LogMsg("context.Request is null");
}
if (context.Request.RemoteEndPoint == null)
{
Program.LogMsg("context.Request.RemoteEndPoint is null");
}
Console.WriteLine($"{(context?.Id.ToString() ?? "null")}: {(context.Request?.RemoteEndPoint?.ToString() ?? "null")} {(context?.Request?.Url.ToString() ?? "null")}");
var idSplit = context.Id.ToString().Split('-');
var logger = new RequestLogger(context);
Func <ErrorJson, int, string> sendError = (ErrorJson reply, int code) =>
{
var str = Newtonsoft.Json.JsonConvert.SerializeObject(reply, Newtonsoft.Json.Formatting.None);
logger.End((HttpStatusCode)code, str);
if (context.WantsHTML)
{
str = reply.GetPrettyPage(context);
}
else if (!context.WantsJson)
{
str = reply.GetSimpleText();
}
var bytes = System.Text.Encoding.UTF8.GetBytes(str);
context.HTTP.Response.StatusCode = code;
context.HTTP.Response.Close(bytes, true);
return("");
};
if (!(context.Path.Contains("/_/") || context.Path.StartsWith("/api/tracker/")))
{
logger.Write();
}
List <APIEndpoint> endpoints;
if (!Endpoints.TryGetValue(context.Method, out endpoints))
{
logger.End((HttpStatusCode)400, $"Method unrecognised ({context.Method})");
sendError(new ErrorJson("Method is not recognised"), 400);
return;
}
var seeker = new CommandFinder(context, endpoints);
if (!seeker.Search())
{
var list = new List <ErrorItem>();
var mustRedirectTo = new List <string>();
foreach (var er in seeker.Errors)
{
var redirects = er.Exceptions.Where(x => x is RedirectException).Select(x => x as RedirectException);
foreach (var thing in redirects)
{
if (!mustRedirectTo.Contains(thing.URL))
{
mustRedirectTo.Add(thing.URL);
}
}
list.Add(new ErrorItem(er.Command, er.ErrorReason));
}
if (mustRedirectTo.Count == 1)
{ // every error is solely about not being logged in
redirect(logger, context, mustRedirectTo[0]);
return;
}
sendError(new ErrorJson(list), 400);
return;
}
var found = seeker.BestFind;
var commandBase = found.CommandBase;
var exceptions = found.Exceptions;
var failures = exceptions.Where(x => x.CompleteFailure).ToList();
if (failures.Count > 0)
{
commandBase.RespondRaw($"{string.Join(", ", failures.ToString())}", 500);
return;
}
var redirectEx = exceptions.FirstOrDefault(x => x is RedirectException) as RedirectException;
if (redirectEx != null)
{
redirect(logger, context, redirectEx.URL);
return;
}
commandBase.Context.Endpoint = found.Command;
try
{
commandBase.BeforeExecute();
}
catch (RedirectException ex)
{
redirect(logger, context, ex.URL);
logger.End(HttpStatusCode.TemporaryRedirect, ex.Message);
return;
}
catch (ReqHandledException ex)
{
logger.End((HttpStatusCode)commandBase.StatusSent);
return;
}
catch (HaltExecutionException ex)
{
Program.LogMsg(ex, $"{context.Id}");
commandBase.ResponseHalted(ex);
logger.End(HttpStatusCode.InternalServerError, ex.Message);
return;
}
try
{
found.Command.Function.Invoke(commandBase, found.Arguments.ToArray());
logger.End((HttpStatusCode)commandBase.StatusSent);
}
catch (TargetInvocationException outer)
{
Exception ex = outer.InnerException;
try
{
sendError(new ErrorJson(ex.Message), 500);
} catch { }
Program.LogMsg(ex, "Handler");
} catch (Exception ex)
{
try
{
sendError(new ErrorJson(ex.Message), 500);
}
catch { }
Program.LogMsg(ex, "ExHandler");
}
commandBase.AfterExecute();
Console.WriteLine($"{context.Id}: Returned {commandBase.StatusSent}");
}