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libwebsockets/minimal-examples/http-client/minimal-http-client
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
..
CMakeLists.txt clean: internally use LWS_WITH_CLIENT and _SERVER 2019-08-26 09:58:57 +01:00
minimal-http-client.c h2: unify immortal stream tracking across SSE and ws substreams 2019-09-22 03:08:36 -07:00
README.md minimal: add switches and exit results 2018-04-19 16:16:48 +08:00
selftest.sh selftests 2018-04-19 16:16:48 +08:00
warmcat.com.cer tls certs: update warmcat.com and libwebsockets.org public certs 2019-09-22 03:08:36 -07:00

lws minimal http client

The application goes to either https://warmcat.com or https://localhost:7681 (with -l option) and receives the page data.

build

 $ cmake . && make

usage

Commandline option Meaning
-d Debug verbosity in decimal, eg, -d15
-l Connect to https://localhost:7681 and accept selfsigned cert
--h1 Specify http/1.1 only using ALPN, rejects h2 even if server supports it
 $ ./lws-minimal-http-client
[2018/03/04 14:43:20:8562] USER: LWS minimal http client
[2018/03/04 14:43:20:8571] NOTICE: Creating Vhost 'default' port -1, 1 protocols, IPv6 on
[2018/03/04 14:43:20:8616] NOTICE: created client ssl context for default
[2018/03/04 14:43:20:8617] NOTICE: lws_client_connect_2: 0x1814dc0: address warmcat.com
[2018/03/04 14:43:21:1496] NOTICE: lws_client_connect_2: 0x1814dc0: address warmcat.com
[2018/03/04 14:43:22:0154] NOTICE: lws_client_interpret_server_handshake: incoming content length 26520
[2018/03/04 14:43:22:0154] NOTICE: lws_client_interpret_server_handshake: client connection up
[2018/03/04 14:43:22:0169] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0169] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0169] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0169] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:0174] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0174] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0174] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0174] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:0179] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0179] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0179] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:0179] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:3010] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3010] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3010] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3010] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:3015] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3015] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3015] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3015] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:3020] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3020] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3020] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3020] USER: RECEIVE_CLIENT_HTTP_READ: read 1015
[2018/03/04 14:43:22:3022] USER: RECEIVE_CLIENT_HTTP_READ: read 1024
[2018/03/04 14:43:22:3022] USER: RECEIVE_CLIENT_HTTP_READ: read 974
[2018/03/04 14:43:22:3022] NOTICE: lws_http_client_read: transaction completed says -1
[2018/03/04 14:43:23:3042] USER: Completed