Dav: fixed segfault on PUT if body was already read (ticket #238). If request body reading happens with different options it's possible that there will be no r->request_body->temp_file available (or even no r->request_body available if body was discarded). Return internal server error in this case instead of committing suicide by dereferencing a null pointer.
*) Log: $apache_bytes_sent removed. It was renamed to $body_bytes_sent in nginx 0.3.10 and the old name is deprecated since then. *) Variable $bytes_sent. It replicates variable $bytes_sent as previously available in log module only. Patch by Benjamin Grössing (with minor changes). *) Variables $connection and $connection_requests. Log module counterparts are removed as they aren't used often and there is no need to preserve them for efficiency.
SSL: the "ssl_verify_client" directive parameter "optional_no_ca". This parameter allows to don't require certificate to be signed by a trusted CA, e.g. if CA certificate isn't known in advance, like in WebID protocol. Note that it doesn't add any security unless the certificate is actually checked to be trusted by some external means (e.g. by a backend). Patch by Mike Kazantsev, Eric O'Connor.
Limit req: fix of rbtree node insertion on hash collisions. The rbtree used in ngx_http_limit_req_module has two level of keys, the top is hash, and the next is the value string itself. However, when inserting a new node, only hash has been set, while the value string has been left empty. The bug was introduced in r4419 (1.1.14). Found by Charles Chen.
Fixed strict aliasing bugs when dealing with IPv4-mapped IPv6 addresses.
The "include" directive should be able to include multiple files if given a filename mask. Fixed this to work for "include" directives inside the "map" or "types" blocks. The "include" directive inside the "geo" block is still not fixed.
The bug had appeared in 0.8.43 (r3653). Patch by Weibin Yao.
Previous code incorrectly used ctx->var_values as an array of pointers to ngx_http_variable_value_t, but the array contains structures, not pointers. Additionally, ctx->var_values inspection failed to properly set var on match.