src/controller/publicController.ts

@@ -9,6 +9,9 @@ import SettingHelper from "../helpers/settingsHelper";
 import sharp from "sharp";
 import ico from "sharp-ico";
 import { FileSystemHelper } from "../helpers/fileSystemHelper";
+import { SocketConnectionTypes } from "../enums/socketEnum";
+import SocketServer from "../websocket";
+import BadRequestException from "../exceptions/badRequestException";
 
 /**
  * @description get all calendar items by types or nscdr
@@ -54,6 +57,26 @@ export async function getCalendarItemsByTypes(req: Request, res: Response): Prom
   }
 }
 
+/**
+ * @description get all calendar items by types or nscdr
+ * @summary passphrase is passed as value pair like `type:passphrase`
+ * @param req {Request} Express req object
+ * @param res {Response} Express res object
+ * @returns {Promise<*>}
+ */
+export async function checkScannerRoomExists(req: Request, res: Response): Promise<any> {
+  let roomId = req.body.roomId;
+
+  const socketsInOtherRoom = await SocketServer.server.of(SocketConnectionTypes.scanner).in(roomId).fetchSockets();
+  const count = socketsInOtherRoom.length;
+
+  if (count != 0) {
+    res.sendStatus(204);
+  } else {
+    throw new BadRequestException("room does not exists");
+  }
+}
+
 /**
  * @description get configuration of UI
  * @param req {Request} Express req object

src/routes/public.ts

@@ -1,5 +1,6 @@
 import express from "express";
 import {
+  checkScannerRoomExists,
   getApplicationConfig,
   getApplicationFavicon,
   getApplicationIcon,
@@ -18,6 +19,10 @@ router.post("/reportdamage", async (req, res) => {
   res.send("TODO");
 });
 
+router.post("/checkscannerroom", async (req, res) => {
+  await checkScannerRoomExists(req, res);
+});
+
 router.get("/configuration", async (req, res) => {
   await getApplicationConfig(req, res);
 });

src/websocket/index.ts

@@ -14,6 +14,10 @@ import pScanner from "./pScanner";
 export default abstract class SocketServer {
   private static io: Server;
 
+  static get server() {
+    return this.io;
+  }
+
   public static init(httpServer: httpServerType) {
     this.io = new Server(httpServer, {
       cors: {

src/websocket/pScanner/index.ts

@@ -0,0 +1,116 @@
+import { Server, Socket } from "socket.io";
+import { emitEvent, handleEvent } from "../handleEvent";
+import { SocketConnectionTypes } from "../../enums/socketEnum";
+
+export default (io: Server, socket: Socket) => {
+  socket.on(
+    "session:join",
+    handleEvent(
+      "noPermissionsRequired",
+      async (room: string) => {
+        const socketsInOtherRoom = await io.of(SocketConnectionTypes.scanner).in(room).fetchSockets();
+        const count = socketsInOtherRoom.length;
+
+        if (count == 0) {
+          return {
+            type: "status-session:join",
+            answer: { status: "failed" },
+          };
+        } else {
+          socket.join(room);
+          emitEvent(
+            {
+              type: "package-scanner_join",
+              answer: socket.id,
+              room: room,
+              namespace: SocketConnectionTypes.scanner,
+            },
+            socket,
+            io
+          );
+
+          return {
+            type: "status-session:join",
+            answer: { status: "success" },
+          };
+        }
+      },
+      socket
+    )
+  );
+
+  socket.on(
+    "session:leave",
+    handleEvent(
+      "noPermissionsRequired",
+      async () => {
+        console.log("called leave");
+        const rooms = Array.from(socket.rooms).filter((r) => r !== socket.id);
+        const room = rooms[0];
+
+        socket.leave(room);
+        emitEvent(
+          {
+            type: "package-scanner_leave",
+            answer: socket.id,
+            room: room,
+            namespace: SocketConnectionTypes.scanner,
+          },
+          socket,
+          io
+        );
+
+        return {
+          type: "status-session:leave",
+          answer: { status: "success" },
+        };
+      },
+      socket
+    )
+  );
+
+  socket.on(
+    "scan:send",
+    handleEvent(
+      "noPermissionsRequired",
+      async (result: string) => {
+        const rooms = Array.from(socket.rooms).filter((r) => r !== socket.id);
+        const room = rooms[0];
+
+        emitEvent(
+          {
+            type: "package-scan_receive",
+            answer: result,
+            room: room,
+            namespace: SocketConnectionTypes.scanner,
+          },
+          socket,
+          io
+        );
+
+        return {
+          type: "status-scan:send",
+          answer: { status: "success" },
+        };
+      },
+      socket
+    )
+  );
+
+  socket.on("disconnecting", () => {
+    const rooms = Array.from(socket.rooms).filter((r) => r !== socket.id);
+    const room = rooms[0];
+
+    socket.leave(room);
+    emitEvent(
+      {
+        type: "package-scanner_leave",
+        answer: socket.id,
+        room: room,
+        namespace: SocketConnectionTypes.scanner,
+      },
+      socket,
+      io
+    );
+  });
+};

src/websocket/scanner/index.ts

@@ -48,7 +48,7 @@ export default (io: Server, socket: Socket) => {
   socket.on("disconnecting", () => {
     const rooms = Array.from(socket.rooms).filter((r) => r !== socket.id);
     const room = rooms[0];
-    io.of(SocketConnectionTypes.pscanner).in(room).disconnectSockets();
+    // io.of(SocketConnectionTypes.pscanner).in(room).disconnectSockets();
     emitEvent(
       {
         type: "package-host_leave",