From ec48ec314f9cd1ae3ecd4f8ca2d9c32665bdf8bd Mon Sep 17 00:00:00 2001
From: default <nobody@localhost>
Date: Sun, 26 Feb 2023 20:23:02 +0100
Subject: [PATCH] Don't inline empty avatars in og:avatar meta property.

---
 html.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/html.c b/html.c
index f969440..48672dd 100644
--- a/html.c
+++ b/html.c
@@ -226,6 +226,14 @@ d_char *html_user_header(snac *snac, d_char *s, int local)
                     s_bio[n] != '\r' && s_bio[n] != '\n' && n < 128; n++);
         s_bio[n] = '\0';
 
+        xs *s_avatar = xs_dup(avatar);
+
+        /* don't inline an empty avatar: create a real link */
+        if (xs_startswith(s_avatar, "data:")) {
+            xs_free(s_avatar);
+            s_avatar = xs_fmt("%s/susie.png", srv_baseurl);
+        }
+
         /* og properties */
         xs *s1 = xs_fmt(
             "<meta property=\"og:site_name\" content=\"%s\"/>\n"
@@ -239,7 +247,7 @@ d_char *html_user_header(snac *snac, d_char *s, int local)
             snac->uid,
             xs_dict_get(srv_config, "host"),
             s_bio,
-            avatar);
+            s_avatar);
         s = xs_str_cat(s, s1);
     }