add .torrent link support

handlers/torrent/main.go

@@ -180,8 +180,16 @@ func handle(vpntor, outdir, content string) error {
 }
 
 func findMagnets(s string) []string {
-	magnetRegexp := regexp.MustCompile(`magnet:.xt[^ $"]*`)
-	return magnetRegexp.FindAllString(s, -1)
+	patterns := []string{
+		`magnet:.xt[^ $"]*`,
+		`https:..[^"]*\.torrent`,
+	}
+	matches := []string{}
+	for _, pattern := range patterns {
+		magnetRegexp := regexp.MustCompile(pattern)
+		matches = append(matches, magnetRegexp.FindAllString(s, -1)...)
+	}
+	return matches
 }
 
 func submit(vpntor, outdir, magnet string) (*http.Response, error) {

handlers/torrent/main_test.go

@@ -239,6 +239,10 @@ func TestFindMagnets(t *testing.T) {
 			s: `here is some magnet:-xt1 and magnet:-xt2 another one <a href="magnet:-xt3">link</a>`,
 			l: 3,
 		},
+		{
+			s: `here is a link https://my.domain/a.b/c.torrent, and another <a href="https://my.domain/a/b/c.torrent"></a>`,
+			l: 2,
+		},
 	}
 
 	for i, c := range cases {