msg_note() accepts a nullable post date.

activitypub.c

@@ -1555,7 +1555,7 @@ xs_dict *msg_follow(snac *snac, const char *q)
 
 xs_dict *msg_note(snac *snac, const xs_str *content, const xs_val *rcpts,
                   const xs_str *in_reply_to, const xs_list *attach,
-                  int scope, const char *lang_str)
+                  int scope, const char *lang_str, const char *msg_date)
 /* creates a 'Note' message */
 /* scope: 0, public; 1, private (mentioned only); 2, "quiet public"; 3, followers only */
 {
@@ -1569,7 +1569,12 @@ xs_dict *msg_note(snac *snac, const xs_str *content, const xs_val *rcpts,
     xs *irt  = NULL;
     xs *tag  = xs_list_new();
     xs *atls = xs_list_new();
-    xs_dict *msg = msg_base(snac, "Note", id, NULL, "@now", NULL);
+
+    /* discard non-parseable dates */
+    if (!xs_is_string(msg_date) || xs_parse_iso_date(msg_date, 0) == 0)
+        msg_date = NULL;
+
+    xs_dict *msg = msg_base(snac, "Note", id, NULL, xs_or(msg_date, "@now"), NULL);
     xs_list *p;
     const xs_val *v;
 
@@ -1782,7 +1787,7 @@ xs_dict *msg_question(snac *user, const char *content, xs_list *attach,
                       const xs_list *opts, int multiple, int end_secs)
 /* creates a Question message */
 {
-    xs_dict *msg = msg_note(user, content, NULL, NULL, attach, 0, NULL);
+    xs_dict *msg = msg_note(user, content, NULL, NULL, attach, 0, NULL, NULL);
     int max      = 8;
     xs_set seen;
 

html.c

@@ -4020,7 +4020,7 @@ int html_get_handler(const xs_dict *req, const char *q_path,
             const char *b64 = xs_dict_get(q_vars, "content");
             int sz;
             xs *content = xs_base64_dec(b64, &sz);
-            xs *msg = msg_note(&snac, content, NULL, NULL, NULL, 0, NULL);
+            xs *msg = msg_note(&snac, content, NULL, NULL, NULL, 0, NULL, NULL);
             xs *c_msg = msg_create(&snac, msg);
 
             timeline_add(&snac, xs_dict_get(msg, "id"), msg);
@@ -4220,7 +4220,7 @@ int html_post_handler(const xs_dict *req, const char *q_path,
                 enqueue_close_question(&snac, xs_dict_get(msg, "id"), end_secs);
             }
             else
-                msg = msg_note(&snac, content_2, to, in_reply_to, attach_list, priv, NULL);
+                msg = msg_note(&snac, content_2, to, in_reply_to, attach_list, priv, NULL, NULL);
 
             if (sensitive != NULL) {
                 msg = xs_dict_set(msg, "sensitive", xs_stock(XSTYPE_TRUE));
@@ -4659,7 +4659,7 @@ int html_post_handler(const xs_dict *req, const char *q_path,
         int c = 0;
 
         while (xs_list_next(ls, &v, &c)) {
-            xs *msg = msg_note(&snac, "", actor, irt, NULL, 1, NULL);
+            xs *msg = msg_note(&snac, "", actor, irt, NULL, 1, NULL, NULL);
 
             /* set the option */
             msg = xs_dict_append(msg, "name", v);

main.c

@@ -710,7 +710,7 @@ int main(int argc, char *argv[])
         if (strcmp(cmd, "note_unlisted") == 0)
             scope = 2;
 
-        msg = msg_note(&snac, content, NULL, NULL, attl, scope, getenv("LANG"));
+        msg = msg_note(&snac, content, NULL, NULL, attl, scope, getenv("LANG"), NULL);
 
         c_msg = msg_create(&snac, msg);
 

mastoapi.c

@@ -2628,6 +2628,7 @@ int mastoapi_post_handler(const xs_dict *req, const char *q_path,
             const char *summary    = xs_dict_get(args, "spoiler_text");
             const char *media_ids  = xs_dict_get(args, "media_ids");
             const char *language   = xs_dict_get(args, "language");
+            const char *sched_date = xs_dict_get(args, "scheduled_at");
 
             if (xs_is_null(media_ids))
                 media_ids = xs_dict_get(args, "media_ids[]");
@@ -2684,7 +2685,7 @@ int mastoapi_post_handler(const xs_dict *req, const char *q_path,
             if (strcmp(visibility, "public") == 0)
                 scope = 0;
 
-            xs *msg = msg_note(&snac, content, NULL, irt, attach_list, scope, language);
+            xs *msg = msg_note(&snac, content, NULL, irt, attach_list, scope, language, sched_date);
 
             if (!xs_is_null(summary) && *summary) {
                 msg = xs_dict_set(msg, "sensitive", xs_stock(XSTYPE_TRUE));
@@ -3034,7 +3035,7 @@ int mastoapi_post_handler(const xs_dict *req, const char *q_path,
                                 if (o) {
                                     const char *name = xs_dict_get(o, "name");
 
-                                    xs *msg = msg_note(&snac, "", atto, (char *)id, NULL, 1, NULL);
+                                    xs *msg = msg_note(&snac, "", atto, (char *)id, NULL, 1, NULL, NULL);
                                     msg = xs_dict_append(msg, "name", name);
 
                                     xs *c_msg = msg_create(&snac, msg);

snac.h

@@ -329,7 +329,7 @@ xs_dict *msg_follow(snac *snac, const char *actor);
 
 xs_dict *msg_note(snac *snac, const xs_str *content, const xs_val *rcpts,
                   const xs_str *in_reply_to, const xs_list *attach,
-                  int scope, const char *lang);
+                  int scope, const char *lang_str, const char *msg_date);
 
 xs_dict *msg_undo(snac *snac, const xs_val *object);
 xs_dict *msg_delete(snac *snac, const char *id);