Add websockets

.vscode/launch.json

@@ -25,9 +25,9 @@
     {
       "type": "node",
       "request": "launch",
-      "name": "Launch Process API",
+      "name": "Launch Websocket",
       "skipFiles": ["<node_internals>/**"],
-      "program": "${workspaceFolder}/src/processMain.ts",
+      "program": "${workspaceFolder}/src/websocket.ts",
       "preLaunchTask": "tsc: build - tsconfig.json",
       "outFiles": ["${workspaceFolder}/out/**/*.js"]
     }

package-lock.json

@@ -5,6 +5,7 @@
   "packages": {
     "": {
       "dependencies": {
+        "@types/ws": "^8.5.4",
         "cors": "^2.8.5",
         "dotenv": "^16.0.3",
         "express": "^4.18.2",
@@ -13,7 +14,8 @@
         "kysely": "^0.23.4",
         "pg": "^8.9.0",
         "redis": "^4.6.5",
-        "ts-node": "^10.9.1"
+        "ts-node": "^10.9.1",
+        "ws": "^8.13.0"
       },
       "devDependencies": {
         "@babel/core": "^7.21.0",
@@ -2888,6 +2890,14 @@
       "integrity": "sha512-Hl219/BT5fLAaz6NDkSuhzasy49dwQS/DSdu4MdggFB8zcXv7vflBI3xp7FEmkmdDkBUI2bPUNeMttp2knYdxw==",
       "dev": true
     },
+    "node_modules/@types/ws": {
+      "version": "8.5.4",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.5.4.tgz",
+      "integrity": "sha512-zdQDHKUgcX/zBc4GrwsE/7dVdAD8JR4EuiAXiiUhhfyIJXXb2+PrGshFyeXWQPMmmZ2XxgaqclgpIC7eTXc1mg==",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/yargs": {
       "version": "17.0.22",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.22.tgz",
@@ -8286,6 +8296,26 @@
         "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
       }
     },
+    "node_modules/ws": {
+      "version": "8.13.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.13.0.tgz",
+      "integrity": "sha512-x9vcZYTrFPC7aSIbj7sRCYo7L/Xb8Iy+pW0ng0wt2vCJv7M9HOMy0UoN3rr+IFC7hb7vXoqS+P9ktyLLLhO+LA==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",

package.json

@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "@types/ws": "^8.5.4",
     "cors": "^2.8.5",
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
@@ -8,7 +9,8 @@
     "kysely": "^0.23.4",
     "pg": "^8.9.0",
     "redis": "^4.6.5",
-    "ts-node": "^10.9.1"
+    "ts-node": "^10.9.1",
+    "ws": "^8.13.0"
   },
   "devDependencies": {
     "@babel/core": "^7.21.0",
@@ -33,6 +35,7 @@
     "build": "npx tsc",
     "startServer": "node out/serverMain.js",
     "startClient": "node out/clientMain.js",
+    "startWebsocket": "node out/websocket.js",
     "documentation": "redocly build-docs .\\docs\\v2.yml --output=docs\\index.html",
     "test": "jest --runInBand"
   }

src/websocket.ts

@@ -0,0 +1,62 @@
+import * as dotenv from 'dotenv'
+dotenv.config()
+import { Client } from 'pg'
+import { WebSocketServer } from 'ws'
+import { KillTable } from './db/model'
+
+const port = 3002
+const wss = new WebSocketServer({ port })
+
+export const pgClient = new Client({
+    host: process.env.POSTGRES_HOST,
+    database: process.env.POSTGRES_DATABASE,
+    user: process.env.POSTGRES_USER,
+    password: process.env.POSTGRES_PASSWORD
+})
+
+wss.on('connection', function connection(ws: WebSocket, req) {
+    const ip =
+        req?.headers['x-forwarded-for']?.toString().split(',')[0].trim() ||
+        req.socket.remoteAddress
+    console.log(
+        new Date().toLocaleString() + ',' + ip + ',connect,' + wss.clients.size
+    )
+    ws.onclose = function () {
+        const ip =
+            req?.headers['x-forwarded-for']?.toString().split(',')[0].trim() ||
+            req.socket.remoteAddress
+        console.log(
+            new Date().toLocaleString() + ',' + ip + ',close,' + wss.clients.size
+        )
+    }
+})
+
+export default new Promise(async (resolve, reject) => {
+    await pgClient.connect()
+    await pgClient.query('LISTEN new_kill')
+
+    pgClient.on('notification', (data) => {
+        if (!data.payload) return
+        const payload = JSON.parse(data.payload) as KillTable
+        wss.clients.forEach(function (client) {
+            if (client.readyState === WebSocket.OPEN) {
+                client.send(
+                    JSON.stringify({
+                        attacker_id: payload.attacker_id,
+                        attacker_name: payload.attacker_name,
+                        cause_of_death: payload.cause_of_death,
+                        victim_id: payload.victim_id,
+                        victim_name: payload.victim_name,
+                        attacker_current_weapon: payload.attacker_current_weapon,
+                        victim_current_weapon: payload.victim_current_weapon,
+                        distance: payload.distance,
+                        game_mode: payload.game_mode,
+                        servername: payload.servername,
+                        map: payload.map,
+                        host: payload.host
+                    })
+                )
+            }
+        })
+    })
+})