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472 commits

Author SHA1 Message Date
Andy Green
ceb4e53174 lws_button: classification
Now there's an abstract button class regardless of the underlying
connection, we can add more sophicsticated analysis on top of it
for processing its usually noisy events and classifying them into
smd-ready click, long-click or double-click events.

A "regime" defines the timing limits for different press recognition
and can be specified per-button, if not given a default regime is
applied.
2020-06-27 07:57:22 +01:00
Andy Green
33f1003305 lws_pwm 2020-06-27 07:57:22 +01:00
Andy Green
5a937fa830 lws_json_simple_find and lws_nstrstr
String helpers for scanning non-NUL-delimited strings safely,
and very cheap simple string match based JSON parse for cases
that make sense for it... for more complex cases, do a full
JSON parse.
2020-06-20 04:56:30 +01:00
Andy Green
d4a7c7134a lws_button and lws_led
Generic drivers for buttons and leds
2020-06-18 16:57:44 +01:00
Andy Green
34de22b648 cmake: cleanups 2020-06-18 08:53:09 +01:00
Andy Green
6747ab830e content_info: make members conditional 2020-06-18 08:29:43 +01:00
Andy Green
b324f0e43b cmake: provide LIBWEBSOCKETS_DEP_LIBS in CONFIG 2020-06-16 19:45:35 +01:00
Andy Green
ac6edaf199 lws_strexp: add ability to find output length without write
Sometimes we need to find out the substituted length before we can
allocate and actually store it.  Teach strexp that if we set the
output buffer to NULL (and the output length to something big) we
are asking for the substituted length and to not produce output.
2020-06-16 19:45:35 +01:00
Andy Green
15ce46d971 drivers: initial generic gpio and i2c plus bitbang
Make a start on generic peripheral and bus drivers to provide
meta-functionality regardless of platform.

On the one hand this simply provides...

 - bitbang i2c on top of esp-idf gpio apis
 - ssd1306 oled chip driver as found on Heltec WB32
 - modifications to the minimal example test for esp32 to use that

... on the other hand, those capabilities are provided by creating:

 - an abstract i2c class object
 - an abstract gpio class object
 - i2c class implementation using the abstract gpio for bitbang
 - an abstract display class object
 - an abstract display state (brightness, animated change,
    on/off/init tracking, autodim after inactive, auto-off /
    blanking after inactive)

... with the intention, eg, you only have to add a platform
implementation for the gpio to be able to use the i2c-based
display drivers and state handling, and i2c bitbang, without
any other modifications.
2020-06-10 19:17:08 +01:00
Andy Green
f0c1ea801c mingw: fix for different sockfd type in udp example
As found by Sai
2020-06-06 15:53:58 +01:00
Andy Green
080d1fc2ba lejp: add api test suite and support empty object
Adds api-test-lejp to the CI where LEJP enabled.

Supports empty objects like

  { "a": 123, "b": { } }
2020-06-02 08:37:10 +01:00
Andy Green
698eda63d7 ss: formalize user cb retcodes
It's not safe to destroy objects inside a callback from a parent that
still has references to the object.

Formalize what the user code can indicate by its return code from the
callback functions and provide the implementations at the parents.

 - LWSSSSRET_OK:            no action, OK
 - LWSSSSRET_DISCONNECT_ME: disconnect the underlying connection
 - LWSSSSRET_DESTROY_ME:    destroy the ss object
 - LWSSSSRET_TX_DONT_SEND:  for tx, give up the tx opportunity since nothing to send
2020-06-02 08:37:10 +01:00
Andy Green
286cf4357a sul: multiple timer domains
Adapt the pt sul owner list to be an array, and define two different lists,
one that acts like before and is the default for existing users, and another
that has the ability to cooperate with systemwide suspend to restrict the
interval spent suspended so that it will wake in time for the earliest
thing on this wake-suspend sul list.

Clean the api a bit and add lws_sul_cancel() that only needs the sul as the
argument.

Add a flag for client creation info to indicate that this client connection
is important enough that, eg, validity checking it to detect silently dead
connections should go on the wake-suspend sul list.  That flag is exposed in
secure streams policy so it can be added to a streamtype with
"swake_validity": true

Deprecate out the old vhost timer stuff that predates sul.  Add a flag
LWS_WITH_DEPRECATED_THINGS in cmake so users can get it back temporarily
before it will be removed in a v4.2.

Adapt all remaining in-tree users of it to use explicit suls.
2020-06-02 08:37:10 +01:00
Andy Green
4ff9b4f96e ss: add api test with ctest integration
Tests via httpbin.org
2020-06-02 08:37:10 +01:00
Andy Green
b3131fdfdd cmakelist: Augean Stables refactor
Establish a new distributed CMake architecture with CMake code related to
a source directory moving to be in the subdir in its own CMakeLists.txt.
In particular, there's now one in ./lib which calls through to ones
further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc.

This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction,
and it's much easier to maintain sub-CMakeLists.txt that are in the same
directory as the sources they manage, and conceal all the details that that
level.

Child CMakelists.txt become responsible for:

 - include_directories() definition (this is not supported by CMake
   directly, it passes it back up via PARENT_SCOPE vars in helper
   macros)

 - Addition child CMakeLists.txt inclusion, for example toplevel ->
   role -> role subdir

 - Source file addition to the build

 - Dependent library path resolution... this is now a private thing
   in the child CMakeLists.txt, it just passes back any adaptations
   to include_directories() and the LIB_LIST without filling the
   parent namespace with the details
2020-05-27 08:40:12 +01:00
Andy Green
cabe021955 esp32: shift to support latest esp-idf
Esp-idf has an improved but still kind of abused cmake-
based build system now.

If we see ESP_PLATFORM coming as a cmake var, we can know we
are being built from inside the esp-idf config system.

Leave the existing esp32 arrangements alone but triggered off
ESP_PLATFORM, adapt to use the cross toolchain file and
various quirks automatically.

In this way you can build lws a part of your project in a
much cleaner way.

Prepare a minimal esp32 test app for use in Sai

Adapt .sai.json to build for esp32
2020-05-27 08:40:12 +01:00
Andy Green
b6641af88d api-test: lws_struct-json: add worked example
Add support for implicit schema polymorphism
2020-05-27 08:40:12 +01:00
Andy Green
280c81278d ws: remove now unused ws_ping_pong_interval
https://github.com/warmcat/libwebsockets/issues/1915
2020-05-27 08:40:12 +01:00
Andy Green
5623380803 libev: fix destroy path and example typo
https://github.com/warmcat/libwebsockets/issues/1913
2020-05-27 08:40:12 +01:00
Andy Green
36ec353dac client: allow setting overall connect timeout from vh init
Add a member to the vh init struct allowing control of the overall
connection wait introduced in an earlier patch.  Set it to 20s
by default.


The timeout_secs member controls the individual DNS result
connect timeout and is reduced to 5s by default.
2020-05-26 17:05:39 +01:00
Andy Green
9f1d019352 CTest: migrate and deprecate existing selftest scripts
Replace the bash selftest plumbing with CTest.

To use the selftests, build with -DLWS_WITH_MINIMAL_EXAMPLES=1
and `CTEST_OUTPUT_ON_FAILURE=1 make test` or just
`make test`.

To disable tests that require internet access, also give
-DLWS_CTEST_INTERNET_AVAILABLE=0

Remove travis and appveyor scripts on master.

Remove travis and appveyor decals on README.md.
2020-05-11 15:40:13 +01:00
Andy Green
af26f0c765 lejp: correct return temp type to int
lejp_parse() return type is an int... but in the function, the temp
for it is a char.  This leads to badness that is currently worked
around by casting the return through a signed char type.

But that leads to more badness since if there's >127 bytes of buffer
left after the end of the JSON object, we misreport it.

Bite the bullet and fix the temp type, and fix up all the guys
who were working around it at the caller return casting to use the
resulting straight int.

If you are using this api, remove any casting you may have cut-
and-pasted like this

n = (int)(signed char)lejp_parse(...);

... to just be like this...

n = lejp_parse(...);
2020-05-11 15:17:14 +01:00
Kyle Greenwell
bebd3f71a6 h2: add prior knowledge support 2020-05-08 18:56:17 +01:00
Andy Green
40803b3e0d lws_struct: sqlite open option for create or not 2020-04-20 12:56:58 +01:00
Andy Green
eca75ee14d http: pipelining: fixes from xenial sai 2020-04-15 20:35:13 +01:00
Andy Green
63c8a23776 lws_spawn: windows
Move the unix spawn.c from lib/misc through to lib/plat/unix, and
add an implementation for windows in lib/plat/windows
2020-04-13 19:29:09 +01:00
Andy Green
e3d780dac6 gencrypto: windows: warnings
Coming out of increasing number of build variants on windows via Sai
2020-04-12 08:39:27 +01:00
Andy Green
478ee963f1 async dns: test app: dont use exp as ambiguous 2020-04-11 16:49:13 +01:00
Andy Green
d3308df40f windows: pthreads
Add support for external pthreads lib on windows and some docs about how to do.

It can build with LWS_WITH_THREADPOOL and LWS_WITH_MINIMAL_EXAMPLES including the
pthreads-dependent ones without warnings or errors on windows platform as well with this.

pthreads_t can be anything, including a struct - not a pointer-to-a-struct
but the struct itself.  These can't be cast to a void * for printing as they can
on linux, where the base type is a pointer.

Let's fix all the usage of those to determine their own thread index in terms
of the meaning to the program rather than as a tid.
2020-04-07 14:05:21 +01:00
Andy Green
954fcf2bc3 windows: clean LWS_WITH_MINIMAL_EXAMPLES warnings
Fix pthreads detection in the minimal examples and add it where needed.
Fix unistd.h include to be conditional on not WIN32

With this, -DLWS_WITH_MINIMAL_EXAMPLES=1 is happy and warning-free
on windows.
2020-04-07 10:09:51 +01:00
Andy Green
66d1f34846 ss: avs test: disable rate limiting
Rate limiting does not work correctly with AVS server, the last
block of rx data is not coming.  Disable it for now so the
returned data comes as rapidly as the server can send and the
client receive.
2020-04-06 14:21:52 +01:00
Andy Green
fb3fd499e3 threadpool: allow multiple threadpool tasks to bind to same wsi 2020-04-04 10:47:11 +01:00
Andy Green
4cc7f4ed02 ss: add static policy as a build option
In some cases devices may be too constrained to handle JSON policies but still
want to use SS apis and methodology.

This introduces an off-by-default cmake option LWS_WITH_SECURE_STREAMS_STATIC_POLICY_ONLY,
if enabled the JSON parsing part is excluded and it's assumed the user code
provides its policy as hardcoded policy structs.
2020-03-26 06:48:34 +00:00
Andy Green
e783a6ca6e minimal: rediscover event loop lib paths
Building the examples may face the same situations as building lws with
the same dependencies, bring over the same CMakeLists.txt approach
2020-03-24 18:59:36 +00:00
Andy Green
b95ff02f53 example: convert ws ping example to use validity 2020-03-19 10:04:33 +00:00
Andy Green
2cd8f599eb ss: allow url style endpoint addresses
The endpoint field in streamtype policy may continue to just be the
hostname, like "warmcat.com".

But it's also possible now to be a url-formatted string, like, eg,
"https://warmcat.com:444/mailman/listinfo"

If so (ie, if it contains a : ) then the decoded elements may override
if tls is enabled, the endpoint address, the port, and the url path.

No ABI change.
2020-03-15 06:19:38 +00:00
Andy Green
65a3d40d74 ss: support metadata string expansion in endpoint string
This lets you set metadata symbols exposed by the streamtype policy
into the endpoint address.

No ABI change
2020-03-14 17:04:43 +00:00
Andy Green
704eaa5e63 ss: allow streamtype policy overlays
Make the policy load apis public with an extra argument that says if you want the
JSON to overlay on an existing policy rather than replace it.

Teach the stream type parser stuff to realize it already has an entry for the
stream type and to modify that rather than create a second one, allowing overlays
to modify stream types.

Add --force-portal and --force-no-internet flags to minimal-secure-streams and
use the new policy overlay stuff to force the policy for captive portal detection
to feel that there is one or that there's no internet.
2020-03-14 17:04:43 +00:00
Andy Green
a60cb84c9e captive portal
Implement Captive Portal detection support in lws, with the actual
detection happening in platform code hooked up by lws_system_ops_t.

Add an implementation using Secure Streams as well, if the policy
defines captive_portal_detect streamtype, a SS using that streamtype
is used to probe if it's behind a captive portal.
2020-03-11 12:44:01 +00:00
Andy Green
5b9fe01863 build: release mode compile fixes 2020-03-10 06:45:24 +00:00
Andy Green
eaab6e28b0 client: unify post tls accept handling 2020-03-07 20:03:58 +00:00
Andy Green
4f6143fff0 lws logo: update minimal examples 2020-03-06 04:46:39 +00:00
Andy Green
28ce32af64 client: secure streams
Secure Streams is an optional layer on top of lws that separates policy
like endpoint selection and tls cert validation into a device JSON
policy document.

Code that wants to open a client connection just specifies a streamtype name,
and no longer deals with details like the endpoint, the protocol (!) or anything
else other than payloads and optionally generic metadata; the JSON policy
contains all the details for each streamtype.  h1, h2, ws and mqtt client
connections are supported.

Logical secure streams outlive any particular connection and supports "nailed-up"
connectivity regardless of underlying connection stability.
2020-03-04 12:17:49 +00:00
Sakthi Kannan
9d099ba7be client: MQTT
Adds client support for MQTT QoS0 and QoS1, compatible with AWS IoT

Supports stream binding where independent client connections to the
same endpoint can mux on a single tcp + tls connection with topic
routing managed internally.
2020-03-04 12:17:49 +00:00
Andy Green
d88d41090e cleaning: windows 2020-03-04 12:17:49 +00:00
Andy Green
55ea791a77 lws_struct: store which toplevel schema matched
We can give the lws_struct parser a table of toplevel schemas, record
which one we chose so the caller can know how to interpret the result
2020-03-04 12:17:48 +00:00
Andy Green
30fc8e9caf lws_struct sqlite3
Continue with lws_struct, add sqlite support for one
level of lws_dll2_t lists of structs serialization and
deserialization, plus the matching api-test.
2020-03-04 11:00:04 +00:00
Andy Green
bb1a8d37fb rtos diet: make basic auth support a config option on by default
Remove wrapper content for < tls v1.2
2020-03-04 11:00:04 +00:00
Andy Green
0dd23d7073 tls restriction: account for pipelining and add test 2020-03-01 08:14:43 +00:00
Andy Green
40928ca7d6 selftests: add dofailtest
Add support for selftests that are expected to fail
2020-02-21 17:32:41 +00:00