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58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
// Copyright (c) 2020 Cesanta Software Limited
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// All rights reserved
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#include "esp_spiffs.h"
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#include "freertos/FreeRTOS.h"
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#include "mongoose.h"
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#define WIFI_SSID "WIFI_NETWORK" // SET THIS!
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#define WIFI_PASS "WIFI_PASSWORD" // SET THIS!
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#define FS_ROOT "/spiffs"
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// SPIFFS is flat, so tell Mongoose that the FS root is a directory
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// This cludge is not required for filesystems with directory support
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static int my_stat(const char *path, size_t *size, time_t *mtime) {
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int flags = mg_fs_posix.stat(path, size, mtime);
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if (strcmp(path, FS_ROOT) == 0) flags |= MG_FS_DIR;
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return flags;
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}
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// Event handler for an server (accepted) connection. Implemented endpoints:
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// /api/stats - return JSON object with ESP32 stats (free RAM)
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// any other - serve files from the filesystem
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static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
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if (ev == MG_EV_HTTP_MSG) {
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struct mg_http_message *hm = ev_data;
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if (mg_http_match_uri(hm, "/api/stats")) {
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mg_http_reply(c, 200, "", "{\"ram\": %lu}\n", xPortGetFreeHeapSize());
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} else {
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struct mg_fs fs = mg_fs_posix;
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fs.stat = my_stat;
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struct mg_http_serve_opts opts = {.root_dir = FS_ROOT, .fs = &fs};
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mg_http_serve_dir(c, hm, &opts);
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}
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}
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}
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void app_main(void) {
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// Mount filesystem
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esp_vfs_spiffs_conf_t conf = {
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.base_path = FS_ROOT, .max_files = 20, .format_if_mount_failed = true};
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int res = esp_vfs_spiffs_register(&conf);
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LOG(res == ESP_OK ? LL_INFO : LL_ERROR, ("FS %s, %d", conf.base_path, res));
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mg_file_printf(FS_ROOT "/hello.txt", "%s", "hello from ESP");
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// Setup wifi. This function is implemented in wifi.c
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// It blocks until connected to the configured WiFi network
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void wifi_init(const char *ssid, const char *pass);
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wifi_init(WIFI_SSID, WIFI_PASS);
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// Connected to WiFi, now start HTTP server
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struct mg_mgr mgr;
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mg_log_set("3");
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, "http://0.0.0.0:80", cb, &mgr); // Listening server
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LOG(LL_INFO, ("Starting Mongoose web server v%s", MG_VERSION));
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for (;;) mg_mgr_poll(&mgr, 1000); // Infinite event loop
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}
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