From 56345e5bae89e1a9a55800396d3962e2db895c80 Mon Sep 17 00:00:00 2001
From: Fijxu <fijxu@nadeko.net>
Date: Tue, 5 Nov 2024 13:50:53 -0300
Subject: [PATCH] Prevent processing of already expired videoplayback links

---
 httppaths.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/httppaths.go b/httppaths.go
index eeaea19..1652091 100644
--- a/httppaths.go
+++ b/httppaths.go
@@ -6,12 +6,26 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"strconv"
 	"strings"
 	"sync/atomic"
+	"time"
 )
 
 func videoplayback(w http.ResponseWriter, req *http.Request) {
 	q := req.URL.Query()
+	expire, err := strconv.ParseInt(q.Get("expire"), 10, 64)
+	if err != nil {
+		w.WriteHeader(500)
+	}
+
+	// Prevent the process of already expired playbacks
+	// since they will return 403 from googlevideo servers.
+	if (expire - time.Now().Unix()) <= 0 {
+		w.WriteHeader(403)
+		return
+	}
+
 	host := q.Get("host")
 	q.Del("host")