BUG/MEDIUM: cache: do not try to retrieve host-less requests from the cache
All HTTP/1.1 requests the Host header share the same hash key 0 and
will be return the first cached object. Let's add the check on the call
to sha1_hosturi() to prevent this from happening.
This must be backported to 1.8.
diff --git a/src/cache.c b/src/cache.c
index 459c2e8..371ce20 100644
--- a/src/cache.c
+++ b/src/cache.c
@@ -672,7 +672,8 @@
struct cache_entry *res;
struct cache *cache = (struct cache *)rule->arg.act.p[0];
- sha1_hosturi(s->txn);
+ if (!sha1_hosturi(s->txn))
+ return ACT_RET_CONT;
shctx_lock(shctx_ptr(cache));
res = entry_exist(cache, s->txn->cache_hash);