If "upgrade-scheme" parameter is present in backend option along with
"tls" paramter, HTTP/2 :scheme pseudo header field is changed to
"https" from "http" when forwarding a request to this particular
backend. This is a workaround for a server which requests "https"
scheme on HTTP/2 connection encrypted by TLS.
Previously, the default minimum TLS version was TLSv1.1, but the
default cipher list didn't include any compatible ciphers with it.
This made handshake fail if TLSv1.1 was negotiated because there was
no shared ciphers. To make the default settings consistent, the
default minimum TLS version is now TLSv1.2.
With --ocsp-startup option, nghttpx starts accepting connections after
initial attempts to get OCSP responses finish. It does not matter
some of the attempts fail. This feature is useful if OCSP responses
must be available before accepting connections.
This commit adds wildcard path matching. If path pattern given in
backend option ends with "*", it is considered as wildcard path. "*"
must match at least one character. All paths which include wildcard
path without last "*" as prefix, and are strictly longer than wildcard
path without last "*" are matched.
This commit adds 2 new options to handle X-Forwarded-Proto header
field. The --no-add-x-forwarded-proto option makes nghttpx not to
append X-Forwarded-Proto value. The
--no-strip-incoming-x-forwarded-proto option prevents nghttpx from
stripping the header field from client.
Previously, nghttpx always strips incoming header field, and set its
own header field. This commit preserves this behaviour, and adds
additional knobs.
With --single-process option, nghttpx will run in a single process
mode where master and worker are unified into one process. nghttpx
still spawns additional process for neverbleed. In the single process
mode, signal handling is disabled.
This commit adds 2 new options to handle X-Forwarded-Proto header
field. The --add-x-forwarded-proto option makes nghttpx append
X-Forwarded-Proto value. The --strip-incoming-x-forwarded-proto
option makes nghttpx to strip the header field from client.
Previously, nghttpx always strips incoming header field, and set its
own header field. This commit changes this behaviour. Now nghttpx
does not strip, and append X-Forwarded-Proto header field by default.
The X-Forwarded-For, and Forwarded header fields are also handled in
the same way. To recover the old behaviour, use
--add-x-forwarded-proto and --strip-incoming-x-forwarded-proto
options.
Previously, nghttpx will use only one single thread inside the worker
process if --workers=1 (this is default). If --workers=N, N > 1, we
use additional threads for accepting connections, or API request
processing, etc.
With this commit, we use the same processing model for N > 1 even if N
== 1. To restore the original single thread execution mode,
--single-worker option is added. If threading is disabled
--single-worker is always true.
This commit adds configuration revision, which is considered opaque
string, and changes after reloading configuration with SIGHUP. This
revision is returned as a response to configrevision API endpoint.
This allows external application to know whether nghttpx has finished
reloading new configuration or not. Note that this revision does not
change on backendconfig API calls.
This commit removes frontend-tls parameter, and adds
redirect-if-not-tls parameter parameter to --backend option. nghttpx
now responds to the request with 308 status code to redirect the
request to https URI if frontend connection is not TLS encrypted, and
redirect-if-no-tls parameter is used in --backend option. The port
number in Location header field is 443 by default (thus omitted), but
it can be configurable using --redirect-https-port option.
If OpenSSL supports TLSv1.3, enable it by default for all applications
under src. BoringSSL can work at the moment although it does not
unlock all the features nghttpx offers. OpenSSL's TLSv1.3 support is
still WIP at the time of writing.
This commit deprecates --tls-proto-list option, and adds 2 new
options: --tls-min-proto-version and --tls-max-proto-version to
specify minimum and maximum protocol version respectively. Versions
between the two are enabled. The deprecated --tls-proto-list has
empty default value, and acts like enabling only specific protocol
versions in the range for now.
Previously, after sending SIGUSR2 to the original master process, and
the new master process gets ready, user has to send SIGQUIT to the
original master process to shut it down gracefully. With this commit,
the new master process sends SIGQUIT to the original master process
when it is ready to serve requests, eliminating for user to send
SIGQUIT manually.
This works nicely with systemd, because now you can replace nghttpx
binary with new one by "systemctl kill -s USR2 --kill-who=main
nghttpx".
nghttpx supports multiple certificates using --subcert option.
Previously, SNI hostname is used to select certificate. With this
commit, signature algorithm presented by client is also taken into
consideration. nghttpx now accepts certificates which share the same
hostname (CN, SAN), but have different signature algorithm (e.g.,
ECDSA+SHA256, RSA+SHA256).
Currently, this feature requires OpenSSL >= 1.0.2. BoringSSL, and
LibreSSL do not work since they lack required APIs.
--accesslog-write-early option is analogous to HAProxy's logasap. If
used, nghttpx writes access log when response header fields are
received from backend rather than when request transaction finishes.
Previously, ciphers option sets cipher list for both frontend and
backend TLS connections. With this commit, ciphers option only sets
cipher list for frontend connections. The new client-ciphers option
sets cipher list for backend connection.
This commit adds client-no-http2-cipher-black-list option to disable
enforcement of HTTP/2 cipher black list on backend HTTP/2 connection.
Previously, existing no-http2-cipher-black-list option disables it for
both frontend and backend connections. Now no-http2-cipher-black-list
option only disables it for frontend connection.
Previously, global accept-proxy-protocol option enables PROXY protocol
support for all frontend listeners, but this was inflexible. To fix
this issue, accept-proxy-protocol option is now deprecated, and
instead proxyproto parameter in frontend option enables PROXY protocol
support per frontend.
We have added "dns" parameter to backend option. If specified, name
lookup is done dynamically. If not, name lookup is done at start up,
or configuration reloading. nghttpx caches DNS result including error
case in 30 seconds in this commit. Later commit makes this
configurable.
DNS resolution is done asynchronously using c-ares library.
This option requires OpenSSL >= 1.0.2. With OpenSSL 1.0.2, the
default value is "P-256". With OpenSSL 1.1.0 or later, the default
value is "X25519:P-256".
Tatsuhiro Tsujikawa
Tomasz Torcz