NB: r->tmp_buf == srv->tmp_buf (pointer is copied for quicker access)
NB: request read and write chunkqueues currently point to connection
chunkqueues; per-request and per-connection chunkqueues are
not distinct from one another
con->read_queue == r->read_queue
con->write_queue == r->write_queue
NB: in the future, a separate connection config may be needed for
connection-level module hooks. Similarly, might need to have
per-request chunkqueues separate from per-connection chunkqueues.
Should probably also have a request_reset() which is distinct from
validate UTF-8 in url-decoded paths obtained elsewhere than from request
(burl_normalize(), if enabled with server.http-parseopts, checks url for
overlong encodings of ASCII chars in the HTTP request-line)
buffer_simplify_path() no longer prepends '/' if '/' is missing.
Callers must check for leading '/' depending on use, such as in
concatenation with others paths, or direct use accessing filesystem
Note: lighttpd 1.4.50 provides the server.http-parseopts directive.
Recommended settings unless specific use requires looser settings:
server.http-parseopts = (
"header-strict" => "enable",
"host-strict" => "enable",
"host-normalize" => "enable",
"url-normalize" => "enable",
"url-normalize-unreserved" => "enable",
"url-normalize-required" => "enable",
"url-ctrls-reject" => "enable",
"url-path-2f-decode" => "enable",
"url-path-dotseg-remove" => "enable",
"url-query-20-plus" => "enable"
As noted in the link above, mod_access should be preferred instead
of mod_rewrite for access controls to URLs.
buffer_copy_string_len() and buffer_append_string_len() now
internally inline what buffer_commit() does, but do not repeat the
sanity checks already enforced by buffer_string_prepare_copy() and
buffer_string_set_length() short-circuit common case
provide standard types in first.h instead of base.h
provide lighttpd types in base_decls.h instead of settings.h
reduce headers exposed by headers for core data structures
do not expose <pcre.h> or <stdlib.h> in headers
move stat_cache_entry to stat_cache.h
reduce use of "server.h" and "base.h" in headers