commit d26f15c67309bb1291f6f11ff93fc93f60066f3d · gmstn.systems/shard

+44

src/lib/sessions.ts

···

       1
       +
       import type { WebSocket } from "ws";

     

       2
       +
       

     

       3
       +
       export type Session = Map<string, WebSocket>;

     

       4
       +
       

     

       5
       +
       export const sessions: Session = new Map<string, WebSocket>();

     

       6
       +
       

     

       7
       +
       export const generateSessionId = () => {

     

       8
       +
           return crypto.randomUUID();

     

       9
       +
       };

     

       10
       +
       

     

       11
       +
       export const assignSessionTo = (socket: WebSocket) => {

     

       12
       +
           try {

     

       13
       +
               const sessionId = generateSessionId();

     

       14
       +
               sessions.set(sessionId, socket);

     

       15
       +
               return { ok: true };

     

       16
       +
           } catch (err: unknown) {

     

       17
       +
               return { ok: false, err };

     

       18
       +
           }

     

       19
       +
       };

     

       20
       +
       

     

       21
       +
       export const dropSession = (sessionId: string) => {

     

       22
       +
           try {

     

       23
       +
               if (!sessions.has(sessionId))

     

       24
       +
                   return {

     

       25
       +
                       ok: false,

     

       26
       +
                       err: new Error(

     

       27
       +
                           `Could not find a session socket for id ${sessionId} `,

     

       28
       +
                       ),

     

       29
       +
                   };

     

       30
       +
               const session = sessions.get(sessionId);

     

       31
       +
               if (!session)

     

       32
       +
                   return {

     

       33
       +
                       ok: false,

     

       34
       +
                       err: new Error(

     

       35
       +
                           "`sessionId` key exists, but could not get the session socket for some reason?",

     

       36
       +
                       ),

     

       37
       +
                   };

     

       38
       +
               session.close();

     

       39
       +
               sessions.delete(sessionId);

     

       40
       +
               return { ok: true };

     

       41
       +
           } catch (err: unknown) {

     

       42
       +
               return { ok: false, err };

     

       43
       +
           }

     

       44
       +
       };