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llcache: Avoid putting local content in the disc cache.

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This commit is contained in:
Michael Drake 2019-11-10 16:47:55 +00:00
parent 26d7a167ae
commit ad27ed6926
1 changed files with 39 additions and 0 deletions
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39
content/llcache.c
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@ -1519,6 +1519,34 @@ format_error:
return res;
}
/**
* Check whether a scheme is persistable.
*
* \param url URL to check.
* \return true iff url has a persistable scheme.
*/
static inline bool llcache__scheme_is_persistable(const nsurl *url)
{
lwc_string *scheme = nsurl_get_component(url, NSURL_SCHEME);
bool persistable = false;
bool match;
/* nsurl ensures lower case schemes, and corestrings are lower
* case, so it's safe to use case-sensitive comparison. */
if ((lwc_string_isequal(scheme, corestring_lwc_http,
&match) == lwc_error_ok &&
(match == true)) ||
(lwc_string_isequal(scheme, corestring_lwc_https,
&match) == lwc_error_ok &&
(match == true))) {
persistable = true;
}
lwc_string_unref(scheme);
return persistable;
}
/**
* Check whether a scheme is cachable.
*
@ -1578,6 +1606,12 @@ llcache_object_fetch_persistent(llcache_object *object,
nsurl *referer_clone = NULL;
llcache_post_data *post_clone = NULL;
if (!llcache__scheme_is_persistable(object->url)) {
/* Don't bother looking up non-http(s) stuff; we don't
* persist it. */
return NSERROR_NOT_FOUND;
}
object->cache.req_time = time(NULL);
object->cache.fin_time = object->cache.req_time;
@ -2494,6 +2528,11 @@ build_candidate_list(struct llcache_object ***lst_out, int *lst_len_out)
for (object = llcache->cached_objects; object != NULL; object = next) {
next = object->next;
/* Only consider http(s) for the disc cache. */
if (!llcache__scheme_is_persistable(object->url)) {
continue;
}
remaining_lifetime = llcache_object_rfc2616_remaining_lifetime(
&object->cache);