mirror of
https://github.com/warmcat/libwebsockets.git
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7eb36102a9
Add initial support for defining servers using Secure Streams policy and api semantics. Serving h1, h2 and ws should be functional, the new minimal example shows a combined http + SS server with an incrementing ws message shown in the browser over tls, in around 200 lines of user code. NOP out anything to do with plugins, they're not currently used. Update the docs correspondingly.
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/*
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* lws-minimal-secure-streams-server
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*
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* Written in 2010-2020 by Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*/
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#include <libwebsockets.h>
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extern int interrupted, bad;
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typedef struct myss {
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struct lws_ss_handle *ss;
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void *opaque_data;
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/* ... application specific state ... */
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lws_sorted_usec_list_t sul;
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int count;
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} myss_t;
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/* secure streams payload interface */
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static int
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myss_rx(void *userobj, const uint8_t *buf, size_t len, int flags)
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{
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// myss_t *m = (myss_t *)userobj;
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lwsl_user("%s: len %d, flags: %d\n", __func__, (int)len, flags);
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lwsl_hexdump_info(buf, len);
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/*
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* If we received the whole message, for our example it means
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* we are done.
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*/
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if (flags & LWSSS_FLAG_EOM) {
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bad = 0;
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interrupted = 1;
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}
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return 0;
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}
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static int
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myss_tx(void *userobj, lws_ss_tx_ordinal_t ord, uint8_t *buf, size_t *len,
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int *flags)
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{
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//myss_t *m = (myss_t *)userobj;
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return LWSSSSRET_TX_DONT_SEND; /* don't want to write */
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}
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static int
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myss_state(void *userobj, void *sh, lws_ss_constate_t state,
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lws_ss_tx_ordinal_t ack)
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{
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myss_t *m = (myss_t *)userobj;
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lwsl_user("%s: %p %s, ord 0x%x\n", __func__, m->ss,
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lws_ss_state_name(state), (unsigned int)ack);
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switch (state) {
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case LWSSSCS_CREATING:
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lws_ss_request_tx(m->ss);
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break;
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case LWSSSCS_ALL_RETRIES_FAILED:
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/* if we're out of retries, we want to close the app and FAIL */
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interrupted = 1;
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break;
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default:
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break;
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}
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return 0;
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}
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const lws_ss_info_t ssi_client = {
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.handle_offset = offsetof(myss_t, ss),
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.opaque_user_data_offset = offsetof(myss_t, opaque_data),
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.streamtype = "mintest",
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.rx = myss_rx,
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.tx = myss_tx,
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.state = myss_state,
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.user_alloc = sizeof(myss_t),
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};
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