Finalize autorenew method

src/Server/Program.cs

@@ -111,6 +111,7 @@ using (HttpClient client = new HttpClient()) {
     Console.WriteLine("PublicKey loaded");
 }
 
+// Pull JWT out of cookie for auth
 builder.Services.AddAuthentication(options => {
     options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
     options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
@@ -197,11 +198,14 @@ app.UseRouting();
 
 app.UseAuthentication();
 
+// Autorenew JWT about to expire
 app.Use(async (context, next) =>{
     ClaimsPrincipal user = context.User;
     if (user.Identity?.IsAuthenticated == true) {
         string? token = context.Request.Cookies["mistox_session"];
-        Claim? expClaim = user.FindFirst(JwtRegisteredClaimNames.Exp);
+        Claim? staySignedIn = user.FindFirst(ClaimTypes.IsPersistent);
+        if (staySignedIn != null && bool.TryParse(staySignedIn.Value, out bool sli) && sli == true) {
+            Claim? expClaim = user.FindFirst(ClaimTypes.Expiration);
             if (expClaim != null && long.TryParse(expClaim.Value, out long expUnix)) {
                 DateTimeOffset expTime = DateTimeOffset.FromUnixTimeSeconds(expUnix);
                 if ((expTime - DateTimeOffset.UtcNow) < TimeSpan.FromDays(3)) {
@@ -220,6 +224,9 @@ app.Use(async (context, next) =>{
                 }
             }
         }
+    } else {
+        context.Response.Cookies.Delete("mistox_session");
+    }
 
     await next();
 });