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Author SHA1 Message Date
Andy Green
24abd699f6 http: parser: straighten out %00 legality
https://github.com/warmcat/libwebsockets/issues/2262

This adds a README explaining what can be expected if your URLs contain
%00, and adds a safe helper for urlargs-by-name that is length-based.

Contains fix for extra NUL on some headers

https://github.com/warmcat/libwebsockets/issues/2267
2021-04-10 09:21:33 +01:00
Andy Green
0e6df74409 plugins: add option LWS_WITH_PLUGINS_BUILTIN
Add the ability to just build plugins into the main library.
They are already designed to have a pinhole export for when
they are used as dynamic lib plugins so their namespace
does not conflict.
2021-01-31 20:24:29 +00:00
Andy Green
6497220e87 plugins: add LWS_BUILD_HASH to header and require match
Also prioritize LD_LIBRARY_PATH check for plugins first

Iterate through paths in LD_LIBRARY_PATH in order

Warn on failed plugins init but continue protocol init
2021-01-28 05:52:41 +00:00
Andy Green
c9731c5f17 type comparisons: fixes
This is a huge patch that should be a global NOP.

For unix type platforms it enables -Wconversion to issue warnings (-> error)
for all automatic casts that seem less than ideal but are normally concealed
by the toolchain.

This is things like passing an int to a size_t argument.  Once enabled, I
went through all args on my default build (which build most things) and
tried to make the removed default cast explicit.

With that approach it neither change nor bloat the code, since it compiles
to whatever it was doing before, just with the casts made explicit... in a
few cases I changed some length args from int to size_t but largely left
the causes alone.

From now on, new code that is relying on less than ideal casting
will complain and nudge me to improve it by warnings.
2021-01-05 10:56:38 +00:00
Andy Green
8d88d2f4f1 plugins: use new export symbol convention 2020-10-09 21:30:49 +01:00
Andy Green
d98101d1e3 plugins: generalize and provide public api
Move the common plugin scanning dir stuff to be based on lws_dir, which
already builds for windows.  Previously this was done via dirent for unix
and libuv for windows.

Reduce the dl plat stuff to just wrap instantiation and destruction of
dynlibs, establish common code in lib/misc/dir.c for plugin scanning
itself.

Migrate the libuv windows dl stuff to windows-plugins.c, so that he's
available even if later libuv loop support becomes and event lib plugin.

Remove the existing api exports scheme for plugins, just export a const struct
now which has a fixed header type but then whatever you want afterwards depending
on the class / purpose of the plugin.  Place a "class" string in the header so
there can be different kinds of plugins implying different types exported.

Make the plugin apis public and add support for filter by class string, and
per instantation / destruction callbacks so the subclassed header type can
do its thing for the plugin class.  The user provides a linked-list base
for his class of plugins, so he can manage them completely separately and
in user code / user export types.

Rip out some last hangers-on from generic sessions / tables.

This is all aimed at making the plugins support general enough so it can
provide event lib plugins later.
2020-08-31 16:51:37 +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
0bfd39135e cleaning 2020-01-05 22:17:58 +00:00
Andy Green
f7149e90c2 cc0: align dedication to CC0 FAQ recommended format
https://libwebsockets.org/pipermail/libwebsockets/2019-April/007937.html

thanks to Bruce Perens for noting it.

This doesn't change the intention or status of the CC0 files, they were
pure CC0 before (ie, public domain) and they are pure CC0 now.  It just
gets rid of the (C) part at the top of the dedication which may be read
to be a bit contradictory since the purpose is to make it public domain.
2019-05-02 09:29:01 +01:00
Andy Green
9bed6d6fc6 clean: general whitespace cleanup 2018-11-23 08:47:56 +08:00
Andy Green
0a0b88174d minimal: minimal-ws-client-spam 2018-11-15 10:00:54 +08:00
pblemel
e66937a5e7 mirror: flip check on get_urlarg_by_name
https://github.com/warmcat/libwebsockets/issues/1422
2018-10-13 08:16:27 +08:00
Andy Green
d1f9f0ae2d libwebsockets.h: split out into a dir of sub-includes included by libwebsockets.h
This has no effect on user code or backward compatibility.

It moves the in-tree public api header libwebsockets.h from ./lib
to ./include, and introduces a dir ./include/libwebsockets/

The single public api header is split out into 31 sub-headers
in ./include/libwebsockets.  ./include/libwebsockets.h contains
some core types and platform adaptation code, but the rest of it
is now 31 #include <libwebsockets/...>

At install time, /usr/[local/]include/libwebsockets.h is installed
as before, along now with the 31 sub-headers in ...include/libwebsockets/

There's no net effect on user code.

But the api header is now much easier to maintain and study, with 31
topic-based sub headers.
2018-09-11 18:27:59 +08:00
Andy Green
d461f46a97 libwebsockets.h: clean out some boilerplate better put in core/private.h
https://github.com/warmcat/libwebsockets/issues/1370
2018-08-16 19:10:32 +08:00
Andy Green
396b42ac6d coverity 188310: mirror plugin: when reach max mirror instances release lock before disconnect 2018-04-06 10:38:03 +08:00
Andy Green
49a694bd1e minimal: add helpers and adapt all users 2018-04-06 10:38:03 +08:00
Andy Green
d39ecd814a smp: fixes 2018-03-02 19:19:36 +08:00
Andy Green
e5150b7cd9 mirror: use smp pthreads wrappers
This allows mirror protocol to work in the case of multiple
service threads.  If LWS_MAX_SMP == 1 though, the additional
lock members and locking code reduces to nothing.
2018-03-02 19:19:35 +08:00
Andy Green
be525cb624 appveyor: Enable 64-bit build with OpenSSL and HTTP2
Fix warnings found from that

Introduce lws_ptr_diff(head, tail) helper to normalize
pointers to char *, do the subtraction and cast the
result to int.
2017-11-26 19:16:17 +08:00
Andy Green
74fddbc09e cancel_service: change to event-loop agnostic implementation
- Add platform helpers for pipe creation.

 - Change the direct-to-fds implementation to create a wsi for each
   pt and use the normal apis to bind it to the event loop.

 - Modifiy context creation and destroy to create and remove the
   event pipe wsis.

 - Create the event pipe wsis during context create if using the
   default poll() event loop, or when the other event loops start
   otherwise.

 - Add handler that calls back user code with
   LWS_CALLBACK_EVENT_WAIT_CANCELLED

This patch allows you to call `lws_cancel_service(struct lws_context *context)`
from another thread.

It's very cheap for the other thread to call and is safe without
locking.

Every use protocol receives a LWS_CALLBACK_EVENT_WAIT_CANCELLED from
the main thread serialized normally in the event loop.
2017-11-26 19:16:17 +08:00
Andy Green
c7b536764f coverity-fixes 2017-11-10 10:59:58 +08:00
Andy Green
8c35e14965 test-apps: mirror echo mode 2017-11-05 07:09:06 +08:00
Andy Green
a1ce8feba2 mirror: default to empty name if mirror with no arg 2017-11-03 11:48:05 +08:00
Andy Green
dba00cff6f mirror: fix spin on close 2017-11-03 11:47:57 +08:00
Andy Green
10828b1ea0 mirror: fix multiple mirror instances hang 2017-10-20 21:10:29 +08:00
Andy Green
904a9c0920 http2: make usable
HTTP/2 support is now able to serve the test server, complete with
websockets, from a single vhost.

 - This works the same with both OpenSSL and mbedTLS.

 - POST is now wired up and works (also for file upload).

 - CGI is wired up and works.

 - Redirect is adapted and works

 - lwsws works.

 - URI urldecode, sanitation and argument parsing wired up for :path

valgrind clean (aside from openssl-style false uninit data usage in mbedtls send occasionally)

h2spec reports:

$ h2spec  -h 127.0.0.1 -p 7681 -t -k -o 1
...
145 tests, 145 passed, 0 skipped, 0 failed"

Incorporates:

 - "https://github.com/warmcat/libwebsockets/pull/1039
	Fixes issue with -Werror=unused-variable flag

 - 2c843a1395
	ssl: fix infinite loop on client cert verification failure

Signed-off-by: Petar Paradzik <petar.paradzik@sartura.hr>"

Caused and fixes Coverity 184887 - 184892
2017-10-16 17:13:49 +08:00
Andy Green
12adb39542 lws_ring: introduce generic flexible ringbuffer abstraction 2017-09-21 08:45:56 +08:00
Andy Green
e2a926de2f linkedlist helpers 2017-07-09 10:11:59 +08:00
Andy Green
05d74e45dc mirror: multiple mirror contexts by mirror= url arg
By default mirror acts the same as before.

However if you access the test server with a url containing "?mirror=<name>", the session will bind to
a mirror instance private to "?mirror=<name>".  Only sessions that used the same 'mirror=' name can
share the drawings, mirror instances with a different name (including the default "" name) are unaffected.
2017-07-08 16:03:40 +08:00
Andy Green
7acf76cd3d esp8266 initial support 2016-08-10 21:20:23 +08:00
Andy Green
488e05a6b4 plugins add win modifiers before libwebsockets.h for dll export flag
Signed-off-by: Andy Green <andy@warmcat.com>
2016-05-26 07:52:20 +08:00
Andy Green
81a5a125f4 deprecate misnamed lws_vhost_get add lws_get_vhost
All the other simple accessors begin lws_get_...

Signed-off-by: Andy Green <andy@warmcat.com>
2016-05-17 13:47:44 +08:00
Andy Green
3dcbf6abc1 deprecate duplicated lws_protocol_get
Use the identical lws_get_protocol()

Signed-off-by: Andy Green <andy@warmcat.com>
2016-05-17 13:33:58 +08:00
Andy Green
451cee5d47 polarssl implementation
Signed-off-by: Andy Green <andy@warmcat.com>
2016-04-18 20:05:43 +08:00
Andy Green
980614035f plugin lws server status
Signed-off-by: Andy Green <andy@warmcat.com>
2016-04-18 20:05:43 +08:00
Andy Green
22d6f39e7f http2 update integration
https://github.com/warmcat/libwebsockets/issues/489

This

1) fixes the vhost changes on master

2) works around the ah pool changes

3) fixes some other build problems that appeared

4) hacks out physical flow control for internal streams

5) updates the advertised protocol to h2 needed by, eg, chrome 51

That gets it able to serve small (<4K, ie, one packet) files over http2

Signed-off-by: Andy Green <andy@warmcat.com>
2016-04-13 11:53:40 +08:00
Andy Green
020770566e plugins
This adds support for dynamically loaded plugins at runtime, which
can expose their own protocols or extensions transparently.

With these changes lwsws defaults to OFF in cmake, and if enabled it
automatically enables plugins and libuv support.

Signed-off-by: Andy Green <andy@warmcat.com>
2016-04-07 09:38:08 +08:00