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libwebsockets/minimal-examples/secure-streams/minimal-secure-streams-post
Andy Green c6c7ab2b44 event libs: default to building as dynamically loaded plugins
Event lib support as it has been isn't scaling well, at the low level
libevent and libev headers have a namespace conflict so they can't
both be built into the same image, and at the distro level, binding
all the event libs to libwebsockets.so makes a bloaty situation for
packaging, lws will drag in all the event libs every time.

This patch implements the plan discussed here

https://github.com/warmcat/libwebsockets/issues/1980

and refactors the event lib support so they are built into isolated
plugins and bound at runtime according to what the application says
it wants to use.  The event lib plugins can be packaged individually
so that only the needed sets of support are installed (perhaps none
of them if the user code is OK with the default poll() loop).  And
dependent user code can mark the specific event loop plugin package
as required so pieces are added as needed.

The eventlib-foreign example is also refactored to build the selected
lib support isolated.

A readme is added detailing the changes and how to use them.

https://libwebsockets.org/git/libwebsockets/tree/READMEs/README.event-libs.md
2020-08-31 16:51:37 +01:00
..
CMakeLists.txt sspc: fix intree build for sspc examples and increase post example body 2020-08-13 16:48:16 +01:00
minimal-secure-streams-post.c event libs: default to building as dynamically loaded plugins 2020-08-31 16:51:37 +01:00
README.md sspc: add request_tx length variant 2020-08-10 15:04:10 +01:00

lws minimal secure streams

The application goes to https://warmcat.com and reads index.html there.

It does it using Secure Streams... the main code in minimal-secure-streams.c just sets up the context and opens a secure stream of type "mintest".

The handler for state changes and payloads for "mintest" is in ss-myss.c

The information about how a "mintest" stream should connect and the protocol it uses is kept separated in policy-database.c

build

 $ cmake . && make

usage

Commandline option Meaning
-d Debug verbosity in decimal, eg, -d15
-f Force connecting to the wrong endpoint to check backoff retry flow
-p Run as proxy server for clients to connect to over unix domain socket
--force-portal Force the SS Captive Portal Detection to feel it's behind a portal
--force-no-internet Force the SS Captive Portal Detection to feel it can't reach the internet
[2019/08/12 07:16:11:0045] USR: LWS minimal secure streams [-d<verbosity>] [-f]
[2019/08/12 07:16:12:6102] USR: myss_state: LWSSSCS_CREATING, ord 0x0
[2019/08/12 07:16:12:6107] USR: myss_state: LWSSSCS_POLL, ord 0x0
[2019/08/12 07:16:12:6117] N: lws_ss_client_connect: connecting h1get warmcat.com /
[2019/08/12 07:16:12:6118] USR: myss_state: LWSSSCS_CONNECTING, ord 0x0
[2019/08/12 07:16:13:4171] USR: myss_state: LWSSSCS_CONNECTED, ord 0x0
[2019/08/12 07:16:13:4222] USR: myss_rx: len 1024, flags: 1
[2019/08/12 07:16:13:4243] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4244] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4244] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4245] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4246] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4247] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4252] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4264] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4265] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4266] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4267] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4268] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4268] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4269] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4270] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4278] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4279] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4280] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4281] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4282] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4283] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4283] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4284] USR: myss_rx: len 1015, flags: 0
[2019/08/12 07:16:13:4287] USR: myss_rx: len 1024, flags: 0
[2019/08/12 07:16:13:4288] USR: myss_rx: len 947, flags: 0
[2019/08/12 07:16:13:4293] USR: myss_rx: len 0, flags: 2
[2019/08/12 07:16:13:4399] USR: myss_state: LWSSSCS_DISCONNECTED, ord 0x0
[2019/08/12 07:16:13:4761] USR: myss_state: LWSSSCS_DESTROYING, ord 0x0
[2019/08/12 07:16:13:4781] USR: Completed: OK