From 093f4af2827dab26785e788dc0d49d54308239b5 Mon Sep 17 00:00:00 2001
From: default <nobody@localhost>
Date: Fri, 8 Mar 2024 05:41:08 +0100
Subject: [PATCH] Shortened the maximum conversation levels.

Set to a compilation define in MAX_CONVERSATION_LEVELS.
---
 activitypub.c | 2 +-
 html.c        | 5 +++--
 snac.h        | 4 ++++
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/activitypub.c b/activitypub.c
index 162324e..f754ee0 100644
--- a/activitypub.c
+++ b/activitypub.c
@@ -310,7 +310,7 @@ int timeline_request(snac *snac, char **id, xs_str **wrk, int level)
 {
     int status = 0;
 
-    if (level < 256 && !xs_is_null(*id)) {
+    if (level < MAX_CONVERSATION_LEVELS && !xs_is_null(*id)) {
         xs *msg = NULL;
 
         /* is the object already there? */
diff --git a/html.c b/html.c
index 162a2da..d34439a 100644
--- a/html.c
+++ b/html.c
@@ -1334,8 +1334,9 @@ xs_html *html_entry(snac *user, xs_dict *msg, int read_only,
     }
 
     /* avoid too deep nesting, as it may be a loop */
-    if (level >= 256)
-        return NULL;
+    if (level >= MAX_CONVERSATION_LEVELS)
+        return xs_html_tag("mark",
+            xs_html_text(L("Truncated (too deep)")));
 
     if (strcmp(type, "Follow") == 0) {
         return xs_html_tag("div",
diff --git a/snac.h b/snac.h
index 05ea1e2..1afbfc7 100644
--- a/snac.h
+++ b/snac.h
@@ -16,6 +16,10 @@
 #define MAX_THREADS 256
 #endif
 
+#ifndef MAX_CONVERSATION_LEVELS
+#define MAX_CONVERSATION_LEVELS 48
+#endif
+
 extern double disk_layout;
 extern xs_str *srv_basedir;
 extern xs_dict *srv_config;