1 files changed, 30 insertions, 2 deletions

diff --git a/html.c b/html.c
index c9a93aa..075876f 100644
--- a/html.c
+++ b/html.c
@@ -1921,6 +1921,31 @@ xs_html *html_entry_controls(snac *user, const char *actor,
 }
 
 
+static void
+addQuoteUrl(xs_html* snac_content, xs_dict* msg, const char* content)
+{
+    /* https://www.w3.org/ns/activitystreams#quoteUrl */
+    const char* quoteUri = xs_dict_get(msg, "quoteUrl");
+    if (!xs_is_string(quoteUri)) {
+        /* http://fedibird.com/ns#quoteUri */
+        quoteUri = xs_dict_get(msg, "quoteUri");
+    }
+
+    // TODO: This should probably be a better check
+    if (!xs_is_string(quoteUri) || xs_str_in(content, quoteUri) != -1) {
+        return;
+    }
+
+    xs_html_add(snac_content,
+        xs_html_sctag("hr", NULL),
+        xs_html_tag("p",
+            xs_html_tag("a",
+                xs_html_attr("href", quoteUri),
+                xs_html_attr("target", "_blank"),
+                xs_html_text("THIS FUCKER'S INSTANCE CAN'T DO “RE: URL”!"))));
+}
+
+
 xs_html *html_entry(snac *user, xs_dict *msg, int read_only,
                    int level, const char *md5, int hide_children)
 {
@@ -2418,6 +2443,11 @@ xs_html *html_entry(snac *user, xs_dict *msg, int read_only,
             poll);
     }
 
+    const char *content = xs_dict_get(msg, "content");
+
+    /* Add a RE: <quoted post URL> if it doesn't exist already */
+    addQuoteUrl(snac_content, msg, content);
+
     /** attachments **/
     xs *attach = get_attachments(msg);
 
@@ -2429,8 +2459,6 @@ xs_html *html_entry(snac *user, xs_dict *msg, int read_only,
         xs_html_add(snac_content,
             content_attachments);
 
-        const char *content = xs_dict_get(msg, "content");
-
         int c = 0;
         const xs_dict *a;
         while (xs_list_next(attach, &a, &c)) {