mirror of
https://github.com/cesanta/mongoose.git
synced 2025-06-07 17:42:30 +08:00
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
#include <SPI.h>
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#include "mongoose.h"
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#define LED_PIN LED_BUILTIN // LED pin
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#define SS_PIN 17 // Slave select pin for the W5500 module
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struct mg_tcpip_spi spi = {
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NULL, // SPI metadata
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[](void *) { digitalWrite(SS_PIN, LOW); SPI.beginTransaction(SPISettings()); },
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[](void *) { digitalWrite(SS_PIN, HIGH); SPI.endTransaction(); },
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[](void *, uint8_t c) { return SPI.transfer(c); }, // Execute transaction
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};
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struct mg_mgr mgr; // Mongoose event manager
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struct mg_tcpip_if mif = {.mac = {2, 0, 1, 2, 3, 5}}; // Network interface
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// Used by Mongoose for time tracking
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uint64_t mg_millis(void) {
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return millis();
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}
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// Used by Mongoose to generate random data
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bool mg_random(void *buf, size_t len) { // For TLS
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uint8_t *p = (uint8_t *) buf;
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while (len--) *p++ = (unsigned char) (rand() & 255);
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return true;
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}
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// Crude function to get available RAM, for quick profiling
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extern "C" char *sbrk(int);
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extern char *__brkval;
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int getFreeRAM() {
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char top;
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#ifdef __arm__
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return &top - (char *) sbrk(0);
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#elif defined(CORE_TEENSY) || (ARDUINO > 103 && ARDUINO != 151)
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return &top - __brkval;
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#else
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return __brkval ? &top - __brkval : &top - __malloc_heap_start;
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#endif
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}
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static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) {
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if (ev == MG_EV_HTTP_MSG) {
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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if (mg_match(hm->uri, mg_str("/api/led/on"), NULL)) {
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digitalWrite(LED_PIN, HIGH);
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mg_http_reply(c, 200, "", "{%m: %d}\n", MG_ESC("led"), digitalRead(LED_PIN));
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} else if (mg_match(hm->uri, mg_str("/api/led/off"), NULL)) {
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digitalWrite(LED_PIN, LOW);
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mg_http_reply(c, 200, "", "{%m: %d}\n", MG_ESC("led"), digitalRead(LED_PIN));
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} else {
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mg_http_reply(c, 200, "", "ok, free RAM: %u\n", getFreeRAM());
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}
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}
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// Initialise TLS if we're a TLS listener
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if (c->is_tls && ev == MG_EV_ACCEPT) {
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struct mg_tls_opts opts;
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memset(&opts, 0, sizeof(opts));
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// Generated by https://mongoose.ws/tls/
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#define TLS_CERT \
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"-----BEGIN CERTIFICATE-----\n" \
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"MIIBkzCCATqgAwIBAgIEZ3E9lzAKBggqhkjOPQQDAjATMREwDwYDVQQDEwhNb25n\n" \
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"b29zZTAeFw0yNDEyMjkxMjE2MjNaFw0zNDEyMjcxMjE2MjNaMBQxEjAQBgNVBAMT\n" \
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"CWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABHxxuByu5K2k7DYq\n" \
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"b3eQsHb3VY5NWglWun7axh69OWF7V9OUUyON1y8ISirL0Gj5ZPOogIgrB9iOcz6K\n" \
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"q9n8NQOjezB5MA4GA1UdDwEB/wQEAwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAM\n" \
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"BgNVHRMBAf8EAjAAMB8GA1UdIwQYMBaAFGn8GpPWaM0JC7U4zlg+bCljSjLoMCMG\n" \
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"A1UdEQQcMBqCCWxvY2FsaG9zdIINMTkyLjE2OC4wLjEwMDAKBggqhkjOPQQDAgNH\n" \
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"ADBEAiAr1fO3QLLm+vjYarctNI+gfnxxB4edRTRmcFWHmBS8oQIgY5lkq2JCwATG\n" \
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"YsVQUmS+2Tbc7ij7lkduXO42pvr/0fw=\n" \
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"-----END CERTIFICATE-----"
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#define TLS_KEY \
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"-----BEGIN EC PRIVATE KEY-----\n" \
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"MHcCAQEEIHKu84eEw9dX8nez82g3F94OsZJ14LVbAN+OBW+++V2poAoGCCqGSM49\n" \
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"AwEHoUQDQgAEfHG4HK7kraTsNipvd5CwdvdVjk1aCVa6ftrGHr05YXtX05RTI43X\n" \
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"LwhKKsvQaPlk86iAiCsH2I5zPoqr2fw1Aw==\n" \
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"-----END EC PRIVATE KEY-----"
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opts.cert = mg_str(TLS_CERT);
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opts.key = mg_str(TLS_KEY);
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mg_tls_init(c, &opts);
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}
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}
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void setup() {
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Serial.begin(115200); // Initialise serial
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while (!Serial) delay(50); // for debug output
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SPI.begin(); // Iniitialise SPI
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pinMode(SS_PIN, OUTPUT); // to communicate with W5500 Ethernet module
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pinMode(LED_PIN, OUTPUT); // Initialise LED
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mg_mgr_init(&mgr); // Initialise Mongoose event manager
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mg_log_set(MG_LL_DEBUG); // Set debug log level
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mg_log_set_fn([](char ch, void *) { Serial.print(ch); }, NULL); // Log serial
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mif.driver = &mg_tcpip_driver_w5500; // Use W5500 built-in driver
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mif.driver_data = &spi; // Pass SPI interface to W5500 driver
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mg_tcpip_init(&mgr, &mif); // Initialise built-in TCP/IP stack
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// Setup HTTP & HTTPS listeners. Respond "ok" on any HTTP request
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mg_http_listen(&mgr, "http://0.0.0.0:80", http_ev_handler, NULL);
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mg_http_listen(&mgr, "https://0.0.0.0:443", http_ev_handler, NULL);
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}
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void loop() {
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mg_mgr_poll(&mgr, 1);
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}
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