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3620 commits

Author SHA1 Message Date
Andy Green
b40e19edca h2: end stream with end headers
This shouldn't be necessary; just END_HEADERS flag should be enough.
But nghttp2 will not talk to us unless we end the stream from our side.

Unfortunately ending the stream at the time we sent the headers means
we cannot support the long poll half-close scheme.  So add a quirk
flag to optionally support this behaviour of nghttp2 when the client
is creating the connection.
2019-10-12 12:41:14 +01:00
Andy Green
abea7da587 h2: we dont support PUSH 2019-10-12 12:41:14 +01:00
Andy Green
eda6707a84 client: tls cert in mem 2019-10-12 12:41:14 +01:00
Andy Green
41b7716a52 lws_system: auth callback 2019-10-12 12:41:14 +01:00
Andy Green
f4b38f104c LWS_WITH_UDP 2019-10-12 12:41:14 +01:00
Andy Green
5013162b1e abstract: existing connection compare 2019-10-10 16:34:37 +01:00
Andy Green
fc295b7959 muxable client: make http support generic
h1 and h2 has a bunch of code supporting autobinding outgoing client connections
to be streams in, or queued as pipelined on, the same / existing single network
connection, if it's to the same endpoint.

Adapt this http-specific code and active connection tracking to be usable for
generic muxable protocols the same way.
2019-10-10 16:34:37 +01:00
Andy Green
94f1c7b0c1 lws_system: ntpclient 2019-10-10 16:34:37 +01:00
Andy Green
ab4478587a logs: avoid monotonic time
lws_now_usecs() uses monotonic time now.  It's not sync'd with
wallclock time and the two can't be mixed.  Switch to
gettimeofday which is nonmonotonic and use also for fractional
time to avoid fractional secs in logs being unrelated to integer
seconds boundary.
2019-10-10 16:34:37 +01:00
Andy Green
dabd865a5c async-dns: update for lws_retry udp 2019-10-10 16:34:37 +01:00
Andy Green
04f99f1499 lws_retry: udp support 2019-10-10 16:34:37 +01:00
Andy Green
bb7f96d32b cmdline: introduce builtin switches
Rather than do all switches by hand on the minimal examples,
add a helper that knows some "builtin" ones like -d and
others to set context options you might want to use in
any example.
2019-10-10 16:34:37 +01:00
Andy Green
bce1f01370 lws_state and system state
Introduce a generic lws_state object with notification handlers
that may be registered in a chain.

Implement one of those in the context to manage the "system state".

Allow other pieces of lws and user code to register notification
handlers on a context list.  Handlers can object to or take over
responsibility to move forward and retry system state changes if
they know that some dependent action must succeed first.

For example if the system time is invalid, we cannot move on to
a state where anything can do tls until that has been corrected.
2019-09-22 09:35:07 -07:00
Andy Green
6a6f365ce7 semmle: fix warnings
They're all cosmetic or minor js stuff.

Add related shield.io icons to README.
2019-09-22 09:35:07 -07:00
Andy Green
f9f6bb66fe lws_validity: unified connection validity tracking
Refactor everything around ping / pong handling in ws and h2, so there
is instead a protocol-independent validity lws_sul tracking how long it
has been since the last exchange that confirms the operation of the
network connection in both directions.

Clean out periodic role callback and replace the last two role users
with discrete lws_sul for each pt.
2019-09-22 09:35:07 -07:00
Jakob Szumacher
503bb8f8c9 client: LCCSCF_ALLOW_INSECURE
AG add options the minimal http client related to this
2019-09-22 09:35:07 -07:00
Andy Green
5b780b85b5 COV225132: check if no JOSE alg
In the cases where an alg was expected, make sure it
came.
2019-09-22 09:35:07 -07:00
Andy Green
b177435945 COV225133: coverity false positive 2019-09-22 03:08:36 -07:00
Andy Green
10315893f7 pem_to_der: fix binary mode length handling 2019-09-22 03:08:36 -07:00
Andy Green
ba754c4cb2 h2: unify immortal stream tracking across SSE and ws substreams
It was already correct but add helpers to isolate and deduplicate
processing adding and closing a generically immortal stream.

Change the default 31s h2 network connection timeout to be settable
by .keepalive_timeout if nonzero.

Add a public api allowing a client h2 stream to transition to
half-closed LOCAL (by sending a 0-byte DATA with END_STREAM) and
mark itself as immortal to create a read-only long-poll stream
if the server allows it.

Add a vhost server option flag LWS_SERVER_OPTION_VH_H2_HALF_CLOSED_LONG_POLL
which allows the vhost to treat half-closed remotes as immortal long
poll streams.
2019-09-22 03:08:36 -07:00
Andy Green
4e8497b28a context-vhost options: move to uint64_t 2019-09-22 03:08:36 -07:00
Andy Green
dede242a4f vhost protocol timer: dont leak the object containing the sul
Converting the vhost-protocol timer to sul was correct, but we don't
clean up the object containing the sul after the timer fires, causing
a leak.
2019-09-22 03:08:36 -07:00
Andy Green
a97347a18e service: resurrect timeout_ms being -1 as return immediately
There's no longer any reason to come out of sleep for periodic service
which has been eliminated by lws_sul.

With event libs, there is no opportunity to do it anyway since their
event loop is atomic and makes callbacks and sleeps until it is stopped.

But some users are relying on the old poll() service loop as
glue that's difficult to replace.  So for now help that happen by
accepting the timeout_ms of -1 as meaning sample poll and service
what's there without any wait.
2019-09-22 03:08:36 -07:00
Andy Green
6710279e21 client: use block parse and buflist
With http, the protocol doesn't indicate where the headers end and the
next transaction or body begin.  Until now, we handled that for client
header response parsing by reading from the tls buffer bytewise.

This modernizes the code to read in up to 256-byte chunks and parse
the chunks in one hit (the parse API is already set up for doing this
elsewhere).

Now we have a generic input buflist, adapt the parser loop to go through
that and arrange that any leftovers are placed on there.
2019-09-22 03:08:36 -07:00
Andy Green
78c7b0651e buflist: add static reason logging to internal aware apis 2019-09-22 03:08:36 -07:00
Andy Green
32a35d0c4b fixes: various small fixes 2019-09-22 03:08:36 -07:00
Andy Green
5f4dce6942 parsers: use common unaligned accessors 2019-09-22 03:08:36 -07:00
Andy Green
7528491505 raw-proxy: don't defer to raw-skt if we wanted raw-proxy
At some point raw-skt became the default that overrode
the raw-proxy binding request.  Don't do that if we can
see we specifically wanted raw-proxy.
2019-09-22 03:08:36 -07:00
Andy Green
3452980391 PEER_LIMITS: add lejp-conf 2019-09-22 03:08:36 -07:00
Andy Green
0fb976837b tls certs: update warmcat.com and libwebsockets.org public certs
Old certs were getting near the end of their life and we switched the
server to use letsencrypt.  The root and intermediate needed for the
mbedtls case changed accordingly
2019-09-22 03:08:36 -07:00
Andy Green
72e31ba5f7 ws role: cannot assume sentinel, use vhost count
Protocol list is no longer a simple sentinel-terminated
array but composed at vhost creation time in many
cases.  Use the vhost's count of how many protocols it
has rather than seeking up to the sentinel.
2019-09-22 03:08:36 -07:00
Andy Green
49f78ed0d7 client: improve redirect 2019-09-22 03:07:57 -07:00
Andy Green
d808748cd6 detailed latency stats
Remove LWS_LATENCY.

Add the option LWS_WITH_DETAILED_LATENCY, allowing lws to collect very detailed
information on every read and write, and allow the user code to provide
a callback to process events.
2019-09-22 03:06:59 -07:00
Andy Green
5c3e8b2e41 client: iterate connection attempts through addrinfo list 2019-09-22 03:06:59 -07:00
Andy Green
c591e1adfc asynchronous dns for ipv4 and ipv6
This adds the option to have lws do its own dns resolution on
the event loop, without blocking.  Existing implementations get
the name resolution done by the libc, which is blocking.  In
the case you are opening client connections but need to carefully
manage latency, another connection opening and doing the name
resolution becomes a big problem.

Currently it supports

 - ipv4 / A records
 - ipv6 / AAAA records
 - ipv4-over-ipv6 ::ffff:1.2.3.4 A record promotion for ipv6
 - only one server supported over UDP :53
 - nameserver discovery on linux, windows, freertos

It also has some nice advantages

 - lws-style paranoid response parsing
 - random unique tid generation to increase difficulty of poisoning
 - it's really integrated with the lws event loop, it does not spawn
   threads or use the libc resolver, and of course no blocking at all
 - platform-specific server address capturing (from /etc/resolv.conf
   on linux, windows apis on windows)
 - it has LRU caching
 - piggybacking (multiple requests before the first completes go on
   a list on the first request, not spawn multiple requests)
 - observes TTL in cache
 - TTL and timeout use lws_sul timers on the event loop
 - ipv6 pieces only built if cmake LWS_IPV6 enabled
2019-09-19 06:54:53 +01:00
Andy Green
8b37f98feb tokenize: flag for # as rest of line comment
Add a flag for tokenizing config where # indicates
the rest of the line is a comment (eg, /etc/resolv.conf)
2019-09-16 11:09:05 +01:00
Andy Green
35b23c3996 network: ipv4 and 6 aware helpers
Add helpers to parse and print ipv4 and ipv6 numeric addresses
in all the canonical formats.

Expose internal lws_sockaddr46 union and add helper wrappers
to directly operate on sa46.
2019-09-15 11:04:16 +01:00
Andy Green
a20fa90cfe sul: remove NULL service calls from all plats 2019-09-06 15:30:51 +01:00
Andy Green
5f238ed86d unaligned serialization and deserialization helpers
u16, u32 and u64 read and write, plus VBI read and write for up to
64bit / 10 bytes, all to and from uint8_t.
2019-09-06 15:30:51 +01:00
Mike Owens
8fc54cec00 SmartOS: detection/build to all Illumos 2019-09-06 15:30:51 +01:00
Sviatoslav Grebenchucov
976d804f1a socks: Fix compilation error 2019-09-06 15:30:51 +01:00
Sviatoslav Grebenchucov
ed79eedb47 sul_compare: prevent integer overflow bug 2019-09-06 15:30:51 +01:00
Andy Green
3cbeef5d26 lws_tls_client_vhost_extra_cert_mem 2019-09-06 15:30:51 +01:00
Andy Green
adb6379df0 base64: stateful decode 2019-09-06 15:30:51 +01:00
Andy Green
61b5a37a3a lws_retry: use base ms number and set jitter percentage 2019-09-06 15:30:51 +01:00
Andy Green
0fa5563d18 freertos: rename esp32 plat to freertos 2019-08-26 09:58:57 +01:00
Mark Giraud
5303837502 service: catch NULL lws_context
Something else would be drastically wrong if we ever are
called with a NULL context.
2019-08-26 09:58:57 +01:00
Andy Green
ae69bfbd10 debloat: remove things from being built by default that should be conditional 2019-08-26 09:58:57 +01:00
Andy Green
c36a1e8ed0 clean: internally use LWS_WITH_CLIENT and _SERVER
Remove some more things in LWS_WITH_SERVER=0 case
2019-08-26 09:58:57 +01:00
Andy Green
f8afcd0e5c client: make external http proxying optional
Add LWS_CLIENT_HTTP_PROXYING on by default.  Removing it saves a few
hundred bytes of code and 128 bytes per vhost in heap.
2019-08-26 09:58:57 +01:00