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103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
// Copyright (c) 2020 Cesanta Software Limited
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// All rights reserved
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#include "certs.h"
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#include "mongoose.h"
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#include <zephyr/net/net_mgmt.h>
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static const char *s_url = "https://example.org/";
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static const char *s_post_data = NULL; // POST data
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static const int64_t s_timeout_ms = 1500; // Connect timeout in milliseconds
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struct mg_mgr s_mgr;
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static int s_connected = 0;
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static bool done = false;
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// Print HTTP response and signal that we're done
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static void fn(struct mg_connection *c, int ev, void *ev_data) {
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if (ev == MG_EV_OPEN) {
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// Connection created. Store connect expiration time in c->data
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*(int64_t *) c->data = mg_millis() + s_timeout_ms;
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} else if (ev == MG_EV_POLL) {
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if (mg_millis() > *(int64_t *) c->data &&
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(c->is_connecting || c->is_resolving)) {
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mg_error(c, "Connect timeout");
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}
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} else if (ev == MG_EV_CONNECT) {
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// Connected to server. Extract host name from URL
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struct mg_str host = mg_url_host(s_url);
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// If s_url is https://, init TLS client connection
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if (c->is_tls) {
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struct mg_tls_opts opts = {.ca = s_ca, .name = host};
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mg_tls_init(c, &opts);
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}
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// Send request
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int content_length = s_post_data ? strlen(s_post_data) : 0;
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mg_printf(c,
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"%s %s HTTP/1.0\r\n"
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"Host: %.*s\r\n"
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"Content-Type: octet-stream\r\n"
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"Content-Length: %d\r\n"
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"\r\n",
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s_post_data ? "POST" : "GET", mg_url_uri(s_url), (int) host.len,
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host.buf, content_length);
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mg_send(c, s_post_data, content_length);
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} else if (ev == MG_EV_HTTP_MSG) {
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// Response is received. Print it
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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MG_INFO(("%.*s", (int) hm->message.len, hm->message.buf));
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c->is_draining = 1; // Tell mongoose to close this connection
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*(bool *) c->fn_data = true; // Tell event loop to stop
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} else if (ev == MG_EV_ERROR) {
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*(bool *) c->fn_data = true; // Error, tell event loop to stop
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}
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}
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// Zephyr: Define a semaphore and network management callback to be able to wait
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// until our IP address is ready. The main function will start and block on this
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// semaphore until this event handler releases it when the network is ready
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K_SEM_DEFINE(run, 0, 1);
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static void zeh(struct net_mgmt_event_callback *cb,
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// https://docs.zephyrproject.org/latest/releases/migration-guide-4.2.html#networking
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#if ZEPHYR_VERSION_CODE < 0x40200
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uint32_t mgmt_event,
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#else
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uint64_t mgmt_event,
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#endif
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struct net_if *iface) {
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if (mgmt_event == NET_EVENT_L4_CONNECTED) k_sem_give(&run);
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}
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int main(int argc, char *argv[]) {
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// Zephyr: Register the network management callback and block on the semaphore
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struct net_mgmt_event_callback ncb;
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net_mgmt_init_event_callback(&ncb, zeh, NET_EVENT_L4_CONNECTED);
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net_mgmt_add_event_callback(&ncb);
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k_sem_take(&run, K_FOREVER);
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mg_log_set(MG_LL_DEBUG);
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mg_mgr_init(&s_mgr);
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MG_INFO(("Mongoose version : v%s", MG_VERSION));
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uint64_t sntp_timer = 0;
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while (!done) {
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uint64_t period = mg_boot_timestamp_ms == 0 ? 1000 : 24 * 3600 * 1000;
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if (mg_timer_expired(&sntp_timer, period, mg_millis())) {
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mg_sntp_connect(&s_mgr, NULL, NULL, NULL);
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}
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// Initiate the HTTPS request once we have a valid time (needed for TLS)
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if (mg_boot_timestamp_ms > 0 && !s_connected) {
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MG_INFO(("Connecting to : [%s]", s_url));
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mg_http_connect(&s_mgr, s_url, fn, &done);
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s_connected = 1;
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}
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mg_mgr_poll(&s_mgr, 1000);
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}
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mg_mgr_free(&s_mgr);
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return 0;
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}
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