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diff --git a/modules/cache/cache_util.h b/modules/cache/cache_util.h
index eec38f3..1a2d5ee 100644
--- a/modules/cache/cache_util.h
+++ b/modules/cache/cache_util.h
@@ -194,6 +194,9 @@ typedef struct {
unsigned int store_nostore_set:1;
unsigned int enable_set:1;
unsigned int disable_set:1;
+ /* treat maxex as hard limit */
+ unsigned int hardmaxex:1;
+ unsigned int hardmaxex_set:1;
} cache_dir_conf;
/* A linked-list of authn providers. */
diff --git a/modules/cache/mod_cache.c b/modules/cache/mod_cache.c
index 4f2d3e0..30c88f4 100644
--- a/modules/cache/mod_cache.c
+++ b/modules/cache/mod_cache.c
@@ -1299,6 +1299,11 @@ static apr_status_t cache_save_filter(ap_filter_t *f, apr_bucket_brigade *in)
exp = date + dconf->defex;
}
}
+ /* else, forcibly cap the expiry date if required */
+ else if (dconf->hardmaxex && (date + dconf->maxex) < exp) {
+ exp = date + dconf->maxex;
+ }
+
info->expire = exp;
/* We found a stale entry which wasn't really stale. */
@@ -1717,7 +1722,9 @@ static void *create_dir_config(apr_pool_t *p, char *dummy)
/* array of providers for this URL space */
dconf->cacheenable = apr_array_make(p, 10, sizeof(struct cache_enable));
-
+ /* flag; treat maxex as hard limit */
+ dconf->hardmaxex = 0;
+ dconf->hardmaxex_set = 0;
return dconf;
}
@@ -1767,7 +1774,10 @@ static void *merge_dir_config(apr_pool_t *p, void *basev, void *addv) {
new->enable_set = add->enable_set || base->enable_set;
new->disable = (add->disable_set == 0) ? base->disable : add->disable;
new->disable_set = add->disable_set || base->disable_set;
-
+ new->hardmaxex =
+ (add->hardmaxex_set == 0)
+ ? base->hardmaxex
+ : add->hardmaxex;
return new;
}
@@ -2096,12 +2106,18 @@ static const char *add_cache_disable(cmd_parms *parms, void *dummy,
}
static const char *set_cache_maxex(cmd_parms *parms, void *dummy,
- const char *arg)
+ const char *arg, const char *hard)
{
cache_dir_conf *dconf = (cache_dir_conf *)dummy;
dconf->maxex = (apr_time_t) (atol(arg) * MSEC_ONE_SEC);
dconf->maxex_set = 1;
+
+ if (hard && strcasecmp(hard, "hard") == 0) {
+ dconf->hardmaxex = 1;
+ dconf->hardmaxex_set = 1;
+ }
+
return NULL;
}
@@ -2309,7 +2325,7 @@ static const command_rec cache_cmds[] =
"caching is enabled"),
AP_INIT_TAKE1("CacheDisable", add_cache_disable, NULL, RSRC_CONF|ACCESS_CONF,
"A partial URL prefix below which caching is disabled"),
- AP_INIT_TAKE1("CacheMaxExpire", set_cache_maxex, NULL, RSRC_CONF|ACCESS_CONF,
+ AP_INIT_TAKE12("CacheMaxExpire", set_cache_maxex, NULL, RSRC_CONF|ACCESS_CONF,
"The maximum time in seconds to cache a document"),
AP_INIT_TAKE1("CacheMinExpire", set_cache_minex, NULL, RSRC_CONF|ACCESS_CONF,
"The minimum time in seconds to cache a document"),
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