public static void Main(string[] args)
{
Callbacks = new ApiCallbacks();
Config = new Configuration();
API.Program.SetCallbacks(Callbacks, Config);
host = CreateWebHostBuilder(args).Build();
var nms = Task.Run(() => host.Run());
var api = Task.Run(() => API.Program.Main(args));
Task.WhenAll(nms, api).Wait();
}
public void AfterWorldLoad()
{
foreach (OperationType verb in Enum.GetValues(typeof(OperationType)))
{
ApiCallbacks.Add(verb, new Dictionary <string, Tuple <object, MethodInfo> >(StringComparer.InvariantCultureIgnoreCase));
}
foreach (var ass in LoadedAssembalies)
{
var instance = Activator.CreateInstance(ass);
foreach (var method in ass.GetMethods())
{
foreach (var someAtt in method.GetCustomAttributes(true))
{
if (someAtt is PandaHttp pandaGet)
{
if (ApiCallbacks[pandaGet.RestVerb].ContainsKey(pandaGet.Route))
{
APILogger.Log(ChatColor.red, $"Route {pandaGet.Route} already exists for virb {pandaGet.RestVerb}. Overriding existing registered {ApiCallbacks[pandaGet.RestVerb][pandaGet.Route].Item2.Name} with {method.Name}");
}
ApiCallbacks[pandaGet.RestVerb][pandaGet.Route] = Tuple.Create(instance, method);
if (!Endpoints.ContainsKey(pandaGet.Route))
{
Endpoints.Add(pandaGet.Route, new Dictionary <OperationType, Tuple <string, MethodInfo> >());
}
Endpoints[pandaGet.Route][pandaGet.RestVerb] = Tuple.Create(pandaGet.Description, method);
}
}
}
}
_listenThread = new Thread(new ThreadStart(Listen));
_listenThread.IsBackground = true;
_listenThread.Start();
}
public void Listen()
{
HttpListener listener = new HttpListener();
var url = "http://" + APIConfiguration.CSModConfiguration.GetorDefault("PandaAPIAddress", "*") + ":" + APIConfiguration.CSModConfiguration.GetorDefault("PandaAPIPort", 10984) + "/";
listener.Prefixes.Add(url);
listener.Start();
APILogger.Log(ChatColor.green, "Pandaros Rest API now listening on: {0}", url);
while (true)
{
HttpListenerContext context = listener.GetContext();
if (Enum.TryParse(context.Request.HttpMethod, true, out OperationType verb) && ApiCallbacks.TryGetValue(verb, out var callbacks))
{
ThreadPool.QueueUserWorkItem((_) =>
{
string methodName = context.Request.Url.AbsolutePath;
try
{
if (callbacks.TryGetValue(methodName, out var method))
{
var response = default(RestResponse);
var mehodParams = method.Item2.GetParameters();
string bodyStr = string.Empty;
if (context.Request.HasEntityBody)
{
using (StreamReader reader = new StreamReader(context.Request.InputStream, Encoding.UTF8, true, 1024, true))
{
bodyStr = reader.ReadToEnd();
}
}
if (mehodParams.Length > 0)
{
foreach (var param in mehodParams)
{
if (param.Name == "body")
{
continue;
}
if (!context.Request.QueryString.AllKeys.Any(k => k == param.Name))
{
context.Response.StatusCode = 422;
context.Response.StatusDescription = "Missing Parameter. Expected: " + param.Name;
context.Response.OutputStream.Close();
return;
}
}
foreach (var param in context.Request.QueryString.AllKeys)
{
if (!mehodParams.Any(k => k.Name == param))
{
context.Response.StatusCode = 422;
context.Response.StatusDescription = "Unknown Parameter: " + param;
context.Response.OutputStream.Close();
return;
}
}
object[] requestParams = mehodParams
.Select((p, i) =>
{
if (p.Name == "body")
{
return(bodyStr);
}
return(Convert.ChangeType(context.Request.QueryString[p.Name], p.ParameterType));
})
.ToArray();
response = method.Item2.Invoke(method.Item1, requestParams) as RestResponse;
}
else
{
response = method.Item2.Invoke(method.Item1, null) as RestResponse;
}
if (response != null)
{
context.Response.ContentType = response.ContentType;
context.Response.ContentLength64 = response.Content.Length;
context.Response.StatusCode = response.HttpCode;
context.Response.OutputStream.Write(response.Content, 0, response.Content.Length);
}
else
{
throw new InvalidCastException("All methods decorated with PandaHttp must return type RestResponse.");
}
}
else
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
context.Response.StatusDescription = "No method registered with method name: " + methodName;
}
}
catch (Exception ex)
{
APILogger.LogError(ex);
context.Response.StatusCode = 500;
}
context.Response.OutputStream.Close();
});
}
else
{
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
context.Response.StatusDescription = "No rest verb registered with Http Mehtod: " + context.Request.HttpMethod;
context.Response.OutputStream.Close();
}
}
}
