mirror of https://github.com/warmcat/libwebsockets.git synced 2025-03-16 00:00:07 +01:00

History

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	lws_smd: take care about build with disabled	2020-08-16 05:35:56 +01:00
main.c	ss: multipart without processing	2020-08-11 11:07:13 +01:00
README.md	ss: server: h1, h2, ws basic support	2020-07-27 12:05:24 +01:00
ss-client.c	ss: server: h1, h2, ws basic support	2020-07-27 12:05:24 +01:00
ss-server.c	event libs: default to building as dynamically loaded plugins	2020-08-31 16:51:37 +01:00

README.md

lws minimal secure streams server

The application sets up a tls + ws server on https://localhost:7681

It does it using Secure Streams... information about how the server should operate is held in JSON policy in main.c

Visiting the server in a modern browser will fetch some html + JS, the JS will create a ws link back to the server and the server will spam an incrementing number that is displayed in the browser every 100ms.

The app also has a SS client that works, but it's disabled by default since we're interested in server.

build

 $ cmake . && make

usage

Commandline option	Meaning
-d	Debug verbosity in decimal, eg, -d15

[2020/07/27 10:51:04:8994] U: LWS Secure Streams Server
[2020/07/27 10:51:04:9440] N: LWS: 4.0.99-v4.0.0-245-ge6eb4417a, loglevel 1031
[2020/07/27 10:51:04:9444] N: NET CLI SRV H1 H2 WS MQTT SS-JSON-POL SSPROX ASYNC_DNS IPv6-absent
[2020/07/27 10:51:05:1685] N: lws_adopt_descriptor_vhost2: wsi 0x5317d30, vhost system ss_handle (nil)
[2020/07/27 10:51:05:1753] N: lws_adopt_descriptor_vhost2: wsi 0x53182c0, vhost system ss_handle (nil)
[2020/07/27 10:51:05:2129] N: lws_ss_policy_parser_cb: server 'self_localhost' keep 52 0x5318cc0
[2020/07/27 10:51:05:2134] N: lws_ss_policy_parser_cb: server 'self_localhost_key' keep 53 0x5318cf8
[2020/07/27 10:51:05:2192] N: lws_ss_policy_ref_trust_store: le_via_isrg trust store initial 'isrg_root_x1'
[2020/07/27 10:51:05:7804] N: smd_cb: creating server stream
[2020/07/27 10:51:05:7851] N:  Vhost 'myserver' using TLS mode
[2020/07/27 10:51:05:8660] N:  SSL ECDH curve 'prime256v1'
[2020/07/27 10:51:06:1035] N:    vhost myserver: cert expiry: 729599d
[2020/07/27 10:51:06:1039] N: lws_ss_create: created server myserver
[2020/07/27 10:51:11:8650] N: lws_adopt_descriptor_vhost2: wsi 0x5b046e0, vhost myserver ss_handle 0x56e2be0
[2020/07/27 10:51:11:8672] U: myss_srv_state: 0x5b52f60 LWSSSCS_CREATING, ord 0x0
[2020/07/27 10:51:11:8693] U: myss_srv_state: 0x5b52f60 LWSSSCS_CONNECTING, ord 0x0
[2020/07/27 10:51:11:8696] U: myss_srv_state: 0x5b52f60 LWSSSCS_CONNECTED, ord 0x0
[2020/07/27 10:51:11:9743] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_CREATING, ord 0x0
[2020/07/27 10:51:11:9747] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_CONNECTING, ord 0x0
[2020/07/27 10:51:11:9747] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_CONNECTED, ord 0x0
[2020/07/27 10:51:12:0192] U: myss_srv_state: 0x5bad0a0 LWSSSCS_CREATING, ord 0x0
[2020/07/27 10:51:12:0193] U: myss_srv_state: 0x5bad0a0 LWSSSCS_CONNECTING, ord 0x0
[2020/07/27 10:51:12:0194] U: myss_srv_state: 0x5bad0a0 LWSSSCS_CONNECTED, ord 0x0
[2020/07/27 10:51:12:0306] N: secstream_h1: LWS_CALLBACK_HTTP
[2020/07/27 10:51:12:0329] U: myss_srv_state: 0x5bad0a0 LWSSSCS_SERVER_TXN, ord 0x0
[2020/07/27 10:51:12:0481] N: lws_h2_ws_handshake: Server SS 0x5ba2bd0 .wsi 0x5ba27b0 switching to ws protocol
[2020/07/27 10:51:12:0484] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_SERVER_UPGRADE, ord 0x0
[2020/07/27 10:51:12:0541] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_CONNECTED, ord 0x0
[2020/07/27 10:51:12:1222] U: myss_srv_state: 0x5bd1100 LWSSSCS_CREATING, ord 0x0
[2020/07/27 10:51:12:1222] U: myss_srv_state: 0x5bd1100 LWSSSCS_CONNECTING, ord 0x0
[2020/07/27 10:51:12:1223] U: myss_srv_state: 0x5bd1100 LWSSSCS_CONNECTED, ord 0x0
[2020/07/27 10:51:12:1242] N: lws_h2_ws_handshake: Server SS 0x5bd1100 .wsi 0x5bd0ce0 switching to ws protocol
[2020/07/27 10:51:12:1243] U: myss_srv_state: 0x5bd1100 LWSSSCS_SERVER_UPGRADE, ord 0x0
[2020/07/27 10:51:12:1246] U: myss_srv_state: 0x5bd1100 LWSSSCS_CONNECTED, ord 0x0
^C[2020/07/27 10:51:15:2809] U: myss_srv_state: 0x5bad0a0 LWSSSCS_DISCONNECTED, ord 0x0
[2020/07/27 10:51:15:2838] U: myss_srv_state: 0x5bad0a0 LWSSSCS_DESTROYING, ord 0x0
[2020/07/27 10:51:15:2938] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_DISCONNECTED, ord 0x0
[2020/07/27 10:51:15:2946] U: myss_srv_state: 0x5ba2bd0 LWSSSCS_DESTROYING, ord 0x0
[2020/07/27 10:51:15:2952] U: myss_srv_state: 0x5bd1100 LWSSSCS_DISCONNECTED, ord 0x0
[2020/07/27 10:51:15:2953] U: myss_srv_state: 0x5bd1100 LWSSSCS_DESTROYING, ord 0x0
[2020/07/27 10:51:15:2960] U: myss_srv_state: 0x5b52f60 LWSSSCS_DISCONNECTED, ord 0x0
[2020/07/27 10:51:15:2961] U: myss_srv_state: 0x5b52f60 LWSSSCS_DESTROYING, ord 0x0
[2020/07/27 10:51:15:3042] U: myss_srv_state: 0x56e2be0 LWSSSCS_DESTROYING, ord 0x0
[2020/07/27 10:51:15:3378] U: Completed: OK