OOC <-> Discord link. (#201)

Content.Server/MoMMILink.cs

@@ -0,0 +1,154 @@
+using System;
+using System.IO;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using Content.Server.Interfaces;
+using Content.Server.Interfaces.Chat;
+using Newtonsoft.Json;
+using Robust.Server.Interfaces.ServerStatus;
+using Robust.Server.ServerStatus;
+using Robust.Shared.Asynchronous;
+using Robust.Shared.Interfaces.Configuration;
+using Robust.Shared.IoC;
+using Robust.Shared.Log;
+using Robust.Shared.Utility;
+
+namespace Content.Server
+{
+    internal sealed class MoMMILink : IMoMMILink, IPostInjectInit
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IConfigurationManager _configurationManager;
+        [Dependency] private readonly IStatusHost _statusHost;
+        [Dependency] private readonly IChatManager _chatManager;
+        [Dependency] private readonly ITaskManager _taskManager;
+#pragma warning restore 649
+
+        private readonly HttpClient _httpClient = new HttpClient();
+
+        void IPostInjectInit.PostInject()
+        {
+            _configurationManager.RegisterCVar<string>("status.mommiurl", null);
+            _configurationManager.RegisterCVar<string>("status.mommipassword", null);
+
+            _statusHost.AddHandler(_handleChatPost);
+        }
+
+        public async void SendOOCMessage(string sender, string message)
+        {
+            var sentMessage = new MoMMIMessageOOC
+            {
+                Sender = sender,
+                Contents = message
+            };
+
+            await _sendMessageInternal("ooc", sentMessage);
+        }
+
+        private async Task _sendMessageInternal(string type, object messageObject)
+        {
+            var url = _configurationManager.GetCVar<string>("status.mommiurl");
+            var password = _configurationManager.GetCVar<string>("status.mommipassword");
+            if (string.IsNullOrWhiteSpace(url))
+            {
+                return;
+            }
+
+            if (string.IsNullOrWhiteSpace(password))
+            {
+                Logger.WarningS("mommi", "MoMMI URL specified but not password!");
+                return;
+            }
+
+            var sentMessage = new MoMMIMessageBase
+            {
+                Password = password,
+                Type = type,
+                Contents = messageObject
+            };
+
+            var jsonMessage = JsonConvert.SerializeObject(sentMessage);
+            var request =
+                await _httpClient.PostAsync(url, new StringContent(jsonMessage, Encoding.UTF8, "application/json"));
+
+            if (!request.IsSuccessStatusCode)
+            {
+                throw new Exception($"MoMMI returned bad status code: {request.StatusCode}");
+            }
+        }
+
+        private bool _handleChatPost(HttpMethod method, HttpListenerRequest request, HttpListenerResponse response)
+        {
+            if (method != HttpMethod.Post || request.Url.AbsolutePath != "/ooc")
+            {
+                return false;
+            }
+
+            var password = _configurationManager.GetCVar<string>("status.mommipassword");
+            OOCPostMessage message;
+
+            using (var streamReader = new StreamReader(request.InputStream, EncodingHelpers.UTF8))
+            using (var jsonReader = new JsonTextReader(streamReader))
+            {
+                var serializer = new JsonSerializer();
+                try
+                {
+                    message = serializer.Deserialize<OOCPostMessage>(jsonReader);
+                }
+                catch (JsonSerializationException)
+                {
+                    response.Respond(method, "400 Bad Request", HttpStatusCode.BadRequest, "text/plain");
+                    return true;
+                }
+            }
+
+            if (message == null)
+            {
+                response.Respond(method, "400 Bad Request", HttpStatusCode.BadRequest, "text/plain");
+                return true;
+            }
+
+            if (message.Password != password)
+            {
+                response.Respond(method, "Incorrect password", HttpStatusCode.Forbidden, "text/plain");
+                return true;
+            }
+
+            _taskManager.RunOnMainThread(() => _chatManager.SendHookOOC(message.Sender, message.Contents));
+
+            response.Respond(method, "Message received", HttpStatusCode.OK, "text/plain");
+
+            return false;
+        }
+
+        [JsonObject(MemberSerialization.Fields)]
+        private class MoMMIMessageBase
+        {
+            [JsonProperty("password")] public string Password;
+
+            [JsonProperty("type")] public string Type;
+
+            [JsonProperty("contents")] public object Contents;
+        }
+
+        [JsonObject(MemberSerialization.Fields)]
+        private class MoMMIMessageOOC
+        {
+            [JsonProperty("sender")] public string Sender;
+
+            [JsonProperty("contents")] public string Contents;
+        }
+
+        [JsonObject(MemberSerialization.Fields, ItemRequired = Required.Always)]
+        private class OOCPostMessage
+        {
+            [JsonProperty("password")] public string Password;
+
+            [JsonProperty("sender")] public string Sender;
+
+            [JsonProperty("contents")] public string Contents;
+        }
+    }
+}