New function timeline_request_replies().

This function downloads and stores all replies to a message, recursively.

Increases traffic.

Mastodon instances request the user actor again and again without caching
(when the 'replies' Collection is downloaded). Maybe I'm not doing something
correctly?
This commit is contained in:
default 2023-06-07 11:15:58 +02:00
parent 125317ac47
commit f90d4b2372

View file

@ -143,16 +143,18 @@ int actor_request(snac *snac, const char *actor, xs_dict **data)
}
int timeline_request(snac *snac, char **id, d_char **wrk)
void timeline_request_replies(snac *user, const xs_dict *msg);
int timeline_request(snac *snac, char **id, xs_str **wrk)
/* ensures that an entry and its ancestors are in the timeline */
{
int status = 0;
if (!xs_is_null(*id)) {
/* is the admired object already there? */
if (!object_here(*id)) {
xs *object = NULL;
xs *object = NULL;
/* is the object already there? */
if (!valid_status(object_get(*id, &object))) {
/* no; download it */
status = activitypub_request(snac, *id, &object);
@ -180,20 +182,78 @@ int timeline_request(snac *snac, char **id, d_char **wrk)
/* does it have an ancestor? */
char *in_reply_to = xs_dict_get(object, "inReplyTo");
/* store */
timeline_add(snac, *id, object);
/* recurse! */
timeline_request(snac, &in_reply_to, NULL);
/* finally store */
timeline_add(snac, *id, object);
}
}
}
if (object)
timeline_request_replies(snac, object);
}
return status;
}
void timeline_request_replies(snac *user, const xs_dict *msg)
/* requests all replies of a message */
/* FIXME: experimental -- needs more testing */
{
/* does it have a replies collection? */
const xs_dict *replies = xs_dict_get(msg, "replies");
if (!xs_is_null(replies)) {
const char *type = xs_dict_get(replies, "type");
const char *first = xs_dict_get(replies, "first");
if (!xs_is_null(type) && !xs_is_null(first) && strcmp(type, "Collection") == 0) {
const char *next = xs_dict_get(first, "next");
if (!xs_is_null(next)) {
xs *rpls = NULL;
int status = activitypub_request(user, next, &rpls);
/* request the Collection of replies */
if (valid_status(status)) {
xs_list *items = xs_dict_get(rpls, "items");
if (xs_type(items) == XSTYPE_LIST) {
xs_val *v;
/* request them all */
while (xs_list_iter(&items, &v)) {
if (xs_type(v) == XSTYPE_DICT) {
/* not an id, but the object itself (!) */
const char *id = xs_dict_get(v, "id");
if (!xs_is_null(id)) {
snac_debug(user, 0, xs_fmt("embedded reply %s", id));
object_add(id, v);
/* get its own children */
timeline_request_replies(user, v);
}
}
else {
snac_debug(user, 0, xs_fmt("request reply %s", v));
timeline_request(user, &v, NULL);
}
}
}
}
else
snac_debug(user, 0, xs_fmt("reply collection get %s %d", next, status));
}
}
}
}
int send_to_inbox_raw(const char *keyid, const char *seckey,
const xs_str *inbox, const xs_dict *msg,
xs_val **payload, int *p_size, int timeout)